Yarn monitoring device.

专利摘要:
A yarn monitoring device comprises a dispensing flow path (100). The distribution flow path (100) includes an introduction path (93) having one end provided with a compressed air introduction port (73), a first flow path (91) having one end equipped with a first supply port injection (71), a second flow path (92) having one end provided with a second injection port (72), and an intermediate path (94). The other end of the introduction path (93), the other end of the first flow path (91) and the other end of the second flow path (92) are connected to the intermediate path (94) at different locations. The intermediate path (94) extends in a direction other than any of a direction in which the introduction path (93) extends, a direction in which the first flow path (91) extends, and a direction in which it extends the second flow path (92).
公开号:CH712134B1
申请号:CH00150/17
申请日:2017-02-09
公开日:2020-11-13
发明作者:Yasuda Koji；Ikenouchi Toshihiro
申请人:Murata Machinery Ltd；
IPC主号:

专利说明:

BACKGROUND TO THE INVENTION
1. Field of the invention
[0001] The present invention relates to a yarn monitoring device adapted to monitor a state of a yarn in motion. Specifically, the present invention relates to a configuration for cleaning by sweeping away the fiber waste.
2. Description of the known art
Conventionally, a yarn monitoring device is known having a configuration for blowing a fluid against a cleaning target to sweep away the lint and clean the cleaning target. This type of yarn monitoring device is disclosed in Japanese Unexamined Patent Publication No. 2013-230908.
[0003] In the yarn monitoring device of Japanese Unexamined Patent Publication No. 2013-230908, compressed air is introduced into one end of a feed path from a compressed air supply hose. A portion of the introduced compressed air is injected from an ejection section formed at the other end of the feed path to be blown against a light receiving surface and / or a transparent plate of a light receiving element. The remainder of the introduced compressed air flows through another feed path branched off from the relevant feed path, and is injected by a cutter ejection section to be blown against the cutter. Fluid is blown against the cleaning target placed in a yarn monitor so that the lint attached to the cleaning target can be blown away to maintain high yarn defect detection accuracy and the like. of the monitoring device of a yarn, and it is possible to prevent the waste of fibers from being mixed in a package and the like, which is a product.
BRIEF SUMMARY OF THE INVENTION
However, it was found that Japanese Unexamined Patent Publication No. 2013-230908 only describes a configuration of an ejection port to blow compressed air in a localized manner to a portion where the lint for the cutter is likely to be captured, and to blow compressed air over a wide field to maintain the entire cleanliness for the light receiving surface and / or the transparent plate of the light receiving element, and does not disclose the specific configuration to supply the compressed air of the desired quantity and intensity of flow with respect to each ejection port.
The present invention has been made in consideration of the above circumstances, and it is an object thereof to provide a configuration capable of injecting a fluid of an appropriate amount or intensity for cleaning according to each of a plurality of cleaning objectives.
The problems which the present invention intends to solve are described above and the means and effects for solving such problems will now be described.
According to the present invention, a yarn monitoring device having the following configuration is provided. Specifically, the yarn monitoring device comprises a fluid introduction port, a first fluid injection port, a second fluid introduction port and a fluid flow path. The fluid is introduced into the fluid introduction port. In the first injection port, a fluid injection direction is a direction toward said first cleaning target. In the second injection port, a fluid injection direction is a direction toward said second cleaning target. The fluid flow path is adapted to supply a fluid introduced from the fluid introduction port into the first injection port and the second injection port. The fluid flow path includes an introduction path, a first flow path, a second flow path, and an intermediate path. The fluid introduction port is formed at one end of the introduction path. The first injection port is formed at one end of the first flow path. The second injection port is formed at one end of the second flow path. The other end of the introduction path, the other end of the first flow path and the other end of the second flow path are connected to the intermediate path at different locations. The intermediate path extends in a direction other than any of a direction in which the introduction path extends, a direction in which the first flow path extends, and a direction in which the second flow path extends.
Thus, the fluid introduced by the fluid inlet port can be distributed to the first flow path and the second flow path, and the injection quantity of the fluid from the respective injection port can be appropriately adjusted by setting accordingly the size and the like of the first injection port and the second injection port. Thus, fluid of an appropriate flow rate or amount can be injected for cleaning according to each of the plurality of cleaning targets. Since the other end of the first flow path and the other end of the introduction path are connected to the intermediate path at different locations, it is possible to prevent the fluid introduced by the introduction path from being significantly diverted and flowing into the first flow path. flow.
In the yarn monitoring device described above, an opening in which the first flow path is connected to the intermediate path is smaller than an opening in which the introduction path is connected to the intermediate path.
Thus, it is possible to reliably prevent fluid introduced by the introduction path from being significantly diverted and flowing into the first flow path. As a result, it is possible to prevent flow from being injected excessively towards the first cleaning target and from wasting flow.
In embodiments of the yarn monitoring device described above, an opening where the first flow path is connected to the intermediate path and an opening where the second flow path is connected to the intermediate path are both more small of a cross section where the intermediate path is cut along a plane perpendicular to a fluid flow direction.
Thus, it is possible to prevent the fluid introduced from the introduction path into the intermediate path from being significantly diverted and fed to one of the first flow path and the second flow path. Further, the flow can be appropriately distributed and fed to the first flow path and the second flow path by appropriately setting the size and the like of the opening where the first flow path is connected to the intermediate path and the opening. wherein the second flow path is connected to the intermediate path.
In embodiments of the yarn monitoring device described above, an opening where the first flow path is connected to the intermediate path is smaller than an opening where the second flow path is connected to the intermediate path .
Thus, the amount of fluid flow flowing in the first flow path can be made less than the flow amount of the fluid flowing in the second flow path, and furthermore the amount of flow to be injected to the first cleaning target it can be reduced with respect to the amount of fluid to be injected towards the second cleaning target. Since the amount of fluid to be blown can be varied depending on the cleaning objective, the cleaning that the fluid uses can be carried out effectively overall.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, according to the yarn monitoring device, in the intermediate path the other end of the second flow path can be positioned downstream in the fluid flow direction relative to the other end of the first flow path.
Thus, the configuration of the flow path for supplying fluid from the introduction path to the first flow path and to the second flow path can be simplified.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device may further comprise a cutting device which acts as a first cleaning target and a sensing section which acts as a second cleaning target. The cutting device is adapted to cut a yarn. The detection section is adapted to detect a state of the yarn.
Thus, the cutting device and the sensing section can be satisfactorily cleaned by injecting fluid respectively from different injection ports.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the first injection port can be arranged to blow a fluid towards a blade edge of the cutting device.In the intermediate path, the other end of the first flow path can be positioned downstream in a fluid flow direction with respect to the other end of the introduction path.
Thus, the portion in which the fiber waste is easily captured in the cutting device can be cleaned effectively in a concentrated manner. Furthermore, since the end of the first flow path connected to the intermediate path is disposed in a position shifted downstream in the fluid flow direction relative to the end of the introduction path connected to the intermediate path, it is possible to reliably prevent the fluid introduced by the introduction path is significantly deflected and flows into the first flow path, and the force with which the fluid is injected from the first injection port can be weakened to some extent without reducing the diameter of the first flow path. Therefore, the blade edge can be satisfactorily cleaned with a small amount of fluid.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device can be equipped with a slot delimited by internal walls and having an open side in which a yarn to be monitored can be inserted. The first injection port can be opened in a first internal wall facing said open side of the slot. The first injection port may be disposed in a position displaced by a yarn path looking in a direction perpendicular to the first inner wall.
Thus, the fluid can be blown appropriately from the first injection port to the blade edge in the waiting state in the retracted position from the yarn path to clean the blade edge.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device can be provided with a slot having an open side into which a yarn to be monitored can be inserted. The first injection port can be opened in a first internal wall facing the open side of the slot. A fluid injection direction from the first injection port can be directed towards the open side of the slot. A direction of fluid injection from the second injection port can be directed from the open side of the slot to a second inner wall different from the first inner wall of the slot. A part of the fluid injection direction from the second injection port may be inclined relative to the second inner wall.
Thus, compared to the first cleaning target, a narrower region to be cleaned can be intensively cleaned by injecting fluid from the first inner wall of the slot towards the open side of the slot. On the other hand, with respect to the second cleaning goal, a large region can be cleaned by injecting the fluid in the direction inclined with respect to the second inner wall from the open side of the slit towards the second inner wall so that the blown fluid executes a swirling motion and is also blown indirectly towards the other internal wall (first internal wall and the like).
Furthermore, in embodiments of the yarn monitoring device described above, preferably the introduction path and the first flow path extend in directions parallel to each other.
Thus, the configuration of the flow path can be simplified.
In embodiments of the yarn monitoring device, the intermediate path extends linearly perpendicular to the introduction path and the first flow path.
Thus, the intermediate path can be formed easily through a cutting action, using for example a drill and the like.
[0029] In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device can comprise a cutting device which acts as a first cleaning target and a first casing adapted to house at least a part of the cutting device. The cutting device is adapted to cut the yarn. An element in which at least a part of the fluid flow path is formed can be at least partially housed in the first housing.
Thus, the first casing can house not only the cutting device but can also accommodate an element equipped with the fluid flow path to distribute the compressed air, whereby it is possible to perform miniaturization and reduction of the number of parts .
[0031] In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device may further comprise a first wrapper and a second wrapper. The first casing is adapted to at least partially house the cutting device. The second casing is adapted to at least partially house the detection section. The first casing at least partially houses a metal element in which at least a part of the fluid flow path is formed.
This means that since electrical components are often housed for operating the sensing section which occupy a large volume in the second enclosure, there is not much extra space. In this regard, according to the present configuration, the metal element in which at least a part of the fluid flow path is formed is housed at least partially in the first casing having relatively an extra space. Therefore, the flow path that will be formed on the side of the second wrapper can be reduced to simplify the configuration of the entire monitoring device of a yarn.
In embodiments of the yarn monitoring device described above, the introduction path, the first flow path, at least part of the second flow path and the intermediate path are preferably formed in the metal element.
[0034] Therefore, the flow path that will be formed at portions other than the metal element can be reduced, so that the configuration of the entire monitoring device of a yarn can be further simplified.
In embodiments of the yarn monitoring device described above, an opening area of the second injection port is larger than an opening area where the second flow path is connected to the intermediate path.
Thus, the fluid is injected from the second injection port having a relatively large opening area relative to the second cleaning target. Therefore, the fluid can be injected towards the second cleaning target over a larger field.
In embodiments of the yarn monitoring device described above, the fluid introduction port is formed on a surface on a side opposite to a side where the slot in the yarn monitoring device is formed.
Thus, a pipeline for supplying the fluid is connected to the surface on the opposite side to the open side of the slot in the monitoring device of a yarn, so that an arrangement can be made in which the pipeline is less likely to interfere with the yarn passing through the slot. Further, the path from the fluid introduction port to the first injection port can be easily shortened, and the pressure loss in the course of flow through the flow path can be reduced.
In embodiments, the yarn monitoring device described above has the following configuration. Specifically, the yarn monitoring device may further comprise a yarn path adjustment element. The yarn path adjusting member is arranged upstream in a yarn movement direction of the sensing section to adjust a yarn path, which is a yarn path in transit through a yarn transit space. The second injection port may be formed towards a direction in which at least a portion of the injected fluid is blown towards a region comprising the yarn path adjusting member. The second injection port may be formed to comprise a portion disposed downstream in the direction of yarn movement of the yarn path adjusting member.
Thus, by injecting fluid from the second injection port, the yarn path adjusting element arranged upstream in the yarn movement direction of the sensing section can also be cleaned in addition to the sensing section. Therefore, it is possible to exclude the possibility that the sensing performance of the sensing section is not maintained high due to the lint attached to the yarn path adjusting member entering the sensing region of the yarn transit space with yarn and remains in the detection region.
BRIEF DESCRIPTION OF THE DRAWINGS
[0041]<tb> <SEP> Figure 1 is a front view illustrating an overall configuration of an automatic winder comprising a yarn monitoring device according to an embodiment of the present invention;<tb> <SEP> Figure 2 is a side view of a winding unit comprising the yarn monitoring device;<tb> <SEP> Figure 3 is a perspective view of an external aspect of the yarn monitoring device;<tb> <SEP> Figure 4 is a front view of the external appearance of the yarn monitoring device ;;<tb> <SEP> Figure 5 is a schematic planar view of a second enclosure and of the interior thereof;<tb> <SEP> Figure 6 is a schematic planar cross-sectional view of a first enclosure and of the interior thereof;Figure 7 is a front view illustrating a configuration of a slot formed in the monitoring device of a yarn and a perimeter thereof;<tb> <SEP> FIG. 8 is a plan view of a flow path element disposed in the yarn monitoring device;<tb> <SEP> Figure 9 is a cross-sectional view taken along line AA of Figure 8, and is a projection illustrating a state in which a compressed air distribution flow path is projected on a virtual perpendicular plane to a direction of movement of the yarn in the yarn monitoring device;Figure 10 is a cross-sectional view taken along line B-B of Figure 8, and is a front view illustrating a configuration of a slot formed in the monitoring device of a yarn and a perimeter thereof;Figure 11 is a projection illustrating a state in which a compressed air distribution flow path is projected on a virtual perpendicular plane in a direction of movement of the yarn in the monitoring device of a yarn; is<tb> <SEP> Figure 12 is a projection illustrating a state in which a compressed air distribution flow path is projected on a virtual perpendicular plane in the direction of yarn movement in a yarn monitoring device according to a shape alternative realization.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
[0042] Next, an embodiment of the present invention will be described with reference to the drawings.
[0043] As illustrated in Figure 1, an automatic winder (yarn winding machine) 1 comprises, as main components, a plurality of winding units (yarn winding units) 10 arranged side by side, and a section control unit 11 arranged at one end in a direction in which the winding units 10 are arranged.
[0044] The machine control section 11 comprises a display device 12 capable of displaying information associated with each winding unit 10, an instruction input section 13 suitable for the insertion by an operator of various types of instructions in relation to the machine control section 11 and the like. The operator of the automatic rewinder 1 can check various types of displays displayed on the display device 12 and can also appropriately use the instruction input section 13 to collectively manage the plurality of winding units 10 with the control section of machine 11.
Each winding unit 10 shown in Figures 1 and 2 is configured to unwind a yarn 21 from a yarn supply spool 20 and rewind the yarn 21 around a winding spool 22. The winding spool 22 with the yarn 21 wound around it is indicated as cone 23. In the following description, "upstream in the direction of yarn movement" and "downstream in the direction of yarn movement" indicate respectively upstream and downstream looking in the direction of yarn movement 21 .
As illustrated in Figure 2, the winding unit 10 comprises a main body frame 24, a yarn feed section 25 and a winding section 26 as main components.
The main body frame 24 is arranged at one side of the winding unit 10. Most of the components of the winding unit 10 are supported directly or indirectly by the main body frame 24. An operating section 27 adapted to be used by the operator, it is arranged on a front side of the main body frame 24.
[0048] The yarn feeding section 25 is configured to be able to support the yarn feeding reel 20, adapted to feed the yarn 21, in a substantially vertical state. The winding section 26 comprises a support 28 and a winding cylinder 29.
[0049] The support 28 rotatably supports the take-up reel 22. Furthermore, the support 28 is configured to allow a perimeter surface of the support winding reel 22 to come into contact with a perimeter surface of the take-up cylinder 29. The cylinder winder 29 is arranged to face the take-up reel 22 and is configured to be rotatably driven by a motor (not shown). A translation groove (not shown) having a reciprocal spiral shape for translating the yarn 21 wound around the winding reel 22 is formed on the outer perimeter surface of the winding cylinder 29.
[0050] The take-up reel 22 is rotated by driving and rotating the take-up roll 29 with the outer perimeter surface of the take-up roll 22 in contact with the take-up roll 29. Thus, the yarn 21 unwound from the yarn supply roll 20 can being wound around the take-up reel 22 as it is translated by the translation groove. The component suitable for translating the yarn 21 is not limited to the winding cylinder 29 and, for example, instead of the winding cylinder 29, it is possible to adopt an arm translating device able to guide the yarn 21 with a translation guide operated alternately with a predetermined translation width.
Each winding unit 10 comprises a unit control section 30. The unit control section 30 is configured with hardware, such as CPU, ROM and RAM, and software, such as a control program stored in RAM. With the cooperation of hardware and software, each component of the winding unit 10 is controlled. The unit control section 30 of each winding unit 10 is configured to be able to be in communication with the machine control section 11. Therefore, the operation of each winding unit 10 can be intensively managed by the machine control section 11.
[0052] The winding unit 10 has a configuration in which an unwinding facilitating device 31, a tensioning device 32, a yarn splicing device 33 and a yarn monitoring device 6 are arranged in this order from the upstream position in the direction of yarn movement on a yarn transit path between the yarn feeding section 25 and the winding section 26.
[0053] The unwinding facilitating device 31 comprises an adjustment element 35 able to come into contact with a portion (balloon) protruding towards the external side when the yarn 21 unwound from the yarn supply reel 20 is made to oscillate by a centrifugal force . The contact of the adjusting element 35 with the bale prevents the yarn 21 from being swung in excess and keeps the bale at a predetermined size, thus allowing the unwinding of the yarn 21 from the yarn supply reel 20 to be performed with a preset voltage.
[0054] The tension applying device 32 is adapted to apply a predetermined tension on the passing yarn 21. The tension applying device 32 of the present embodiment may be a comb-type tensioning device in which teeth of movable combs are arranged relative to fixed comb teeth. The tension applying device 32 applies appropriate tension on the yarn 21 by passing the yarn 21 as it is folded between the reed teeth in an engaged state. As the tension applying device 32 it is possible to adopt a tension applying device other than the comb type, for example a disc type tensioning device.
The yarn splicing device 33 is configured to splice (yarn splicing operation) a yarn (lower yarn) from the yarn supply spool 20 and a yarn (upper yarn) from the winding spool 22 when the yarn 21 between the yarn supply spool 20 and the winding spool 22 are disconnected, such as when the yarn is cut with a cutting device (cutter) 16, which will be described later. The configuration of the yarn splicer 33 is not particularly limited and, for example, a pneumatic splicer may be adopted which twists the ends of the yarn with a swirling air flow generated by compressed air, or a mechanical knotter may be adopted and similar. An upper yarn suction tube (first yarn catch and guide device) 44 sucks and catches the end of the yarn from the winding spool 22 (from the winding section 26) and guides the yarn end towards the splicing device of yarn 33. A lower yarn suction tube (second yarn catcher and guide) 45 sucks and catches the end of yarn from yarn supply spool 20 (from yarn supply section 25) and guides the yarn yarn end towards yarn joining device 33.
[0056] The yarn monitoring device 6 is configured to monitor the state (quality) of the yarn in transit 21 and to detect a yarn defect (portion with an anomaly in the yarn 21) and the like contained in the yarn 21. The device yarn monitoring 6 comprises the cutting device 16 adapted to cut yarn 21 when the yarn defect and the like is detected in the yarn monitoring.
A brief description of an operation relating to when the defect of yarn and the like is detected by the yarn monitoring device 6 will now be provided with reference to Figure 2.
[0058] When the yarn defect and the like is detected in the yarn monitoring, the yarn monitoring device 6 transmits a yarn defect detection signal to the unit control section 30 and further activates the cutting device 16 to cut the yarn 21. The yarn 21 positioned downstream of the cutting portion is wound once in the package 23. The yarn 21 wound in the package 23 in this case includes a portion of yarn defect and the like detected by the yarn monitoring device 6. The unit control section 30 also stops winding of the yarn by the winding section 26.
The lower yarn suction tube 45 sucks in and catches the end of the yarn fed from the yarn supply spool 20 and guides the yarn end towards the yarn splicer 33. Before or after that, the upper yarn suction tube 44 sucks and captures the end of the yarn wound in the package 23 and guides the yarn end towards the yarn joining device 33. In this case, the portion of the yarn defect and the like wound into the package 23 is sucked in and pulled out of the upper yarn suction tube 44.
The yarn joining device 33 joins the yarn ends guided by the upper yarn suction tube 44 and the lower yarn suction tube 45. Therefore, after the portion including the yarn defect and the like has been removed, the yarn 21 cut by the cutting device 16 is connected again.
After the yarn joining operation has been completed by the yarn joining device 33, the unit control section 30 resumes winding of the yarn 21 by the winding section 26. According to the operations described above, the defect of yarn and the like detected by the yarn monitoring device 6 can be removed, and the winding of yarn 21 in the package 23 can be resumed.
[0062] Next, a detailed description will be provided relating to a configuration of the yarn monitoring device 6 according to the present embodiment with reference to Figures 3 to 11.
[0063] As illustrated in Figures 3 to 5, the yarn monitoring device 6 of the present embodiment comprises, as main components, a first casing 66, a second casing 67, an upper plate 63, a detection section 70, the cutter 16 (see Figures 2 and 6) and a monitor control section 200.
As illustrated in Figure 6, the first housing 66 is a housing adapted to at least partially house a flow path element (metal element) 90 and the cutting device 16. The flow path element 90 is an element shaped like a plate made of metal. For example, the first casing 66 is made of resin.
[0065] For example, the second casing 67 illustrated in Figure 5 is made of resin and at least partially houses the sensing section 70 of the yarn monitoring device 6 by means of a support 69. In the present embodiment, the second casing 67 houses the entire sensing section 70.
The top plate 63 illustrated in Figures 3 and 4 is a thin plate material made of metal that has an outer shape that lies along the outer shape of the second shell 67 looking along the direction of movement of the yarn. The second casing 67 is mounted on an upper side (downstream in the direction of movement of the yarn) of the first casing 66. The upper plate 63 is fixed, being positioned by an appropriate method, on an upper side (downstream in the direction of movement yarn) of the second wrapper 67.
As illustrated in Figure 3, the yarn monitoring device 6 is provided with a slot 6a along the direction of movement of the yarn. The slot 6a is formed in the form of a groove in which one side (front side) is open looking along the direction of movement of the yarn. This means that the slot 6a is formed to penetrate the yarn monitoring device 6 in the direction of movement of the yarn, and is configured so that the yarn 21 can be inserted from the open side (front side). The slot 6a is configured by means of three internal walls (rear wall 6b and a pair of side walls 6c, 6d). A transit space for the yarn 68 is formed inside the slot 6a (being surrounded by the three internal walls). The yarn transit space 68 is a space through which the yarn 21 can flow, which is a monitoring target of the yarn monitoring device 6.
In the present embodiment, a slot 69a is formed in the support 69 (see Figure 5) mounted on the second housing 67, a slot 66a is formed upstream of the second housing 67 and a slot 63a is formed in the top plate 63. When each element constituting the yarn monitoring device 6 is housed in the first casing 66 and in the second casing 67, and the upper plate 63 is assembled to the second casing 67, the slots 66a, 69a, 63a are connected thereby forming a total of a slot 6a, as shown in Figure 3.
More specifically describing the slot 6a, a slot 66a formed on the inner side of the first housing 66 (in the present embodiment, formed over the first housing 66, the flow path element 90 and the like) is configured by three interior walls with one side (front side) open. The three internal walls comprise a rear wall 66b, facing the open side of the passage space for the yarn 68, and a pair of side walls 66c, 66d directed perpendicular to a plane constituting the rear wall 66b. In the present embodiment, the rear wall 66b is configured by a rear wall 90b of the flow path element 90. Each of the pair of alternate walls 66c, 66d is arranged to face the other. According to this configuration, the slot 66a is made in the shape of a groove.
Similarly, the slot 69a formed by the support 69 supported in the second casing 67 is configured by means of three internal walls. Specifically, the three internal walls comprise a rear wall 69b, facing the open side of the passage space for the yarn 68, and a pair of side walls 69c, 69d which are the internal walls different from the rear wall 69b. In each of the pair of side walls 69c, 69d, one end (rear end) on the side opposite the open side is connected to the rear wall 69b. Each of the pair of side walls 69c, 69d is arranged to face the other. According to this configuration, the slot 69a is made in the shape of a groove.
[0071] The slot 63a of the top plate 63 is also formed in the form of a groove with one side (front side) open.
[0072] When the first casing 66 and the second casing 67 housing each element constituting the yarn monitoring device 6, as well as the upper plate 63 are fixed together with the aforementioned configuration, the three slots 66a, 69a, 63a are integrated thus forming a single slot 6a. The slot 6a comprises a rear wall (first internal wall) 6b facing the open side of the slot 6a, a side wall 6c which expands in a direction perpendicular to the plane constituting the rear wall 6b and a side wall (second wall) 6d which it expands in a similar way in a direction perpendicular to a plane constituting the rear wall 6b. Each of the pair of side walls 6c, 6d is arranged to face the other. A specific configuration of the slot 6a is not limited to the configuration described above and various modifications are possible within a scope that does not depart from the concept of the present invention.
[0073] As illustrated in Figures 4 and 7, an upstream yarn guide (yarn path adjusting element) 64 adapted to adjust the yarn path, which is a path (transit position) in which the yarn 21 runs in the passage space of the yarn 68, is arranged at an upstream end of the support 69. The upstream yarn guide 64 is arranged upstream in the direction of movement of the yarn of the sensing section 70.
[0074] Similarly, a downstream yarn guide 65 adapted to regulate the path of the yarn in the passage space of the yarn 68 is arranged at a downstream end of the support 69. The downstream yarn guide 65 is arranged at a downstream in the direction of movement of the yarn of the sensing section 70.
The upstream yarn guide 64 and the downstream yarn guide 65 are made of a material (ceramic in the present embodiment) having abrasion resistance properties. As illustrated in Figure 4, the yarn 21 in transit through the transit space of the yarn 68 slides into contact with a lower portion of the substantially V-shaped groove of the yarn guides 64, 65. The yarn path, through which it flows the yarn 21, with respect to the yarn monitoring device 6, is therefore stabilized, so that the state of the yarn 21 can be monitored stably in the detection section 70.
In the following, a configuration of the interior of each casing of the yarn monitoring device 6 will be described more specifically.
[0077] As illustrated in Figure 6, the cutting device 16 is partially housed in the first housing 66 (a part of the cutting device 16 can be exposed outside the first housing 66). The cutting device 16 comprises a blade (cutting section) 81 and a drive mechanism 80 adapted to drive the blade 81. The blade 81 is connected to the drive mechanism 80, wherein a distal end portion (blade edge 81a ) of the blade 81 can be exposed towards an internal space of a slot 6a (in other words, the interior of the transit space of the yarn 68). For example, the drive mechanism 80 is configured as a solenoid and is capable of advancing the blade edge 81a of the blade 81 of the cutting device 16 into the yarn path through which the yarn flows, and to retract the blade edge. 81a with respect to the path of the yarn with the actuation of the drive mechanism 80.
The first housing 66 also partially houses the flow path element 90, which is a metal element. The flow path element 90 also acts as a plane (blade receiving portion) adapted to receive the blade edge 81a of the blade 81. The details of the flow path element 90 will be described later.
As illustrated in Figures 4 and 5, the sensing section 70 is incorporated in the support 69 mounted on the second casing 67. The yarn monitoring device 6 of the present embodiment is configured as an optical yarn monitoring device adapted to detecting the state of the yarn 21 by irradiating the yarn 21 with light. Therefore, the detecting section 70 is configured as a light sensor. Specifically, the sensing section 70 comprises a light emitting element (light projection section) 37 and a light receiving element (light receiving section) 38. The light emitting element 37 is configured, for example, by means of LEDs and the like. The light receiving element 38 is configured, for example, as a photodiode and is adapted to convert the intensity of the received light into an electrical signal and to emit the electrical signal. The sensing section 70 may also be referred to as a measuring section adapted to measure the state of the yarn 21.
As illustrated in Figure 5, the light receiving element 38 of the sensing section 70 is arranged at a part of the side wall 69c of the support 69. In the light receiving element 38, a surface exposed to the internal space of the slot 69a forms a surface (incident surface) into which light enters. A transparent plate 39 (plate that lets the light through) made of resin is mounted on the side wall 69d facing the side wall 69c, where the incident surface of the support 69 is arranged, and the light emitting element 37 is arranged on one side (inside of the support 69) opposite the passage space of the yarn 68 with the transparent plate 39 between them. The light emitting element 37 and the light receiving element 38 are arranged to face each other with the path of the yarn therebetween. A surface (exit surface) from which the light from the light emitting element 37 exits after passing through the transparent plate 39 is formed at a part of the side wall 69d. However, the incident surface can be formed on the side wall 69d of the slot 69a and the exit surface can be formed on the side wall 69c of the slot 69a. The transparent plate can be arranged in front of the light receiving element 38.
The monitoring control section 200 adapted to induce the operation of the light receiving element 38 and the light emitting element 37 is housed in the second casing 67.
[0082] According to the above configuration, a part of the light from the light emitting element 37 is shielded by the yarn 21 which runs through the transit space of the yarn 68 and received by the light receiving element 38. Therefore , the intensity of the light received by the light receiving element 38 varies due to the thickness of the yarn 21. Therefore, the yarn monitoring device 6 can detect the yarn defect and the like by detecting the thickness of the yarn 21 based on the intensity of the light received by the light receiving element 38. The light receiving element 38 can be arranged to receive the light reflected by the yarn 21. In the present embodiment, a detection signal emitted by the light receiving element light 38 according to a light receiving quantity is fed into the monitoring control section 200 and the signal is subjected to an arithmetic process by the control section ollo of monitoring 200, whereby it is possible to find the defect of yarn and the like.
Furthermore, the yarn monitoring device 6 includes a configuration for cleaning the cutting device 16 and the sensing section 70. The yarn monitoring device 6 injects the compressed air (fluid) from a first injection port 71 with respect to the blade 81 of the cutting device 16 which acts as a cleaning target, and injects the compressed air from a second injection port 72 with respect to the sensing section 70 to sweep away the waste fibers, thus cleaning the device cutting section 16 and sensing section 70.
A configuration of the yarn monitoring device 6 for cleaning the blade 81 of the cutting device 16, which acts as the first cleaning target, and the sensing section 70, which acts as the second cleaning target, will be described below in detail with reference to Figures 3 to 11.
The yarn monitoring device 6 comprises a compressed air introduction port (fluid introduction port) 73, the first injection port 71, the second injection port 72 and a distribution flow path (flow path fluid flow) 100. The compressed air inlet port 73, the first injection port 71, the second injection port 72 and the distribution flow path 100 are formed in at least one of the first shell 66, the second shell 67 and the elements housed in these casings of the yarn monitoring device 6.
As illustrated in Figure 6, the compressed air inlet port 73 is an opening (inlet) through which the compressed air is introduced from the outside into the yarn monitoring device 6. In the present embodiment , the compressed air inlet port 73 is formed on a surface (rear surface of the yarn monitor 6) on a side opposite to the side where the slot 6a is formed in the yarn monitor 6. A hose 48 to supply the compressed air it is connected to the compressed air inlet port 73.
As illustrated in Figures 6 and 7, the first injection port 71 is formed in a direction towards the cutter 16, so that compressed air can be injected from the first injection port 71 towards the cut 16. The first injection port 71 is open in the rear wall 6b of the slot 6a (in the present embodiment, the first injection port 71 is formed at a portion constituting the rear wall 66b of the slot 66a when assembled being housed in the first casing 66 of the flow path element 90). The direction of the first injection port 71 is directed straight towards the blade edge 81a in a state where it is retracted from the yarn path of the cutter 16. This means that the compressed air can be injected in the straight direction towards the side. opening of the slot 66a by injecting the compressed air from the first injection port 71. Later, this direction may be referred to as a first injection direction.
The blade edge 81a of the blade 81 of the cutting device 16 (in a retracted state from the yarn path) is disposed on an extended line of the first injection direction. The first injection port 71 (the outline thereof) is circular, and the diameter is formed to be preferably less than or equal to 1.0 mm, and more preferably less than or equal to 0.6 mm. Therefore, the compressed air injected by the first injection port 71 can be blown in a localized manner towards the blade edge 81a of the blade 81 of the cutting device 16. The blade edge 81a of the blade 81 of the cutting device 16 is generally a position in which filaments and the like of the yarn 21 are likely to be captured, and by blowing the compressed air in a localized manner towards the relevant portion, the necessary portion of the cutting device 16 can be cleaned effectively with a small amount of flow.
[0089] As illustrated in Figures 5 to 7, the second injection port 72 is an injection port (opening) adapted to inject the compressed air towards the sensing section 70. The second injection port 72 is positioned on a external side of the slot 6a near the open side (one side) of the slot 6a.
Looking in a direction along the direction of movement of the yarn, the direction of injection of the compressed air injected by the second injection port 72 is an approach direction to the sensing section 70, as illustrated in Figure 5 and specifically , is a direction towards a position slightly offset by the transparent plate 39 of the side wall 6d on one side of the slot 6a. More specifically, the direction of injection of the compressed air injected by the second injection port 72 is a direction in which the injected compressed air does not directly strike a surface in which and from which the port of the sensing section 70 enters and exits. The second injection port 72 injects the compressed air in such a way as to directly strike the side wall 6d on one side of the slot 6a. At least a part of the injected compressed air is injected in an inclined direction with respect to the side wall 6d. Further on, this direction (each direction indicated by an arrow marked in Figures 5 to 7) may be referred to as the second injection direction. As illustrated in Figure 7, the second injection direction may vary depending on the position in the direction of movement of the yarn, and it may be a direction which approaches perpendicular to the side wall 6d of the slot 6a, or it may be a direction which is inclined towards valley in the direction of movement of the yarn as it approaches the side wall 6d.
[0091] Looking in the direction along the direction of movement of the yarn, at least a part of the second injection direction is inclined relative to the side walls 6c, 6d of the slot 6a, as illustrated in Figure 5. Therefore, the compressed air injected by the second injection port 72 enters the yarn transit space 68 from the open side of the slot 6a and is blown against a position slightly displaced by the transparent plate 39 (position closer to the open side of the slot 6a than the transparent plate 39) of a side wall 6d of the slot 6a. The second injection direction is an inclined direction with respect to the side wall 6d and, therefore, the compressed air blown by the second injection port 72 towards the side wall 6d performs a whirling motion in the slot 6a and is also blown indirectly towards the rear wall 6b and the side wall 6c on the other side.
[0092] Therefore, by injecting the compressed air from the second injection port 72 towards the sensing section 70, the incident surface and the exit surface (specifically, the light receiving element 38 and the transparent plate 39) of the light of the sensing section 70 can be kept clean over a wide field. Furthermore, since the compressed air is not blown directly against the light receiving element 38 or the transparent plate 39, even if the cleanliness level of the compressed air is low, it is possible to prevent the light receiving element 38 or the transparent plate 39 becomes dirty due to the dirt carried by the compressed air, thereby preventing the reduction of the sensing performance of the sensing section 70.
The distribution flow path 100 illustrated in Figures 6 and 8 is a flow path adapted to guide the compressed air introduced by the compressed air inlet port 73 into the first injection port 71 and the second injection port 72 The distribution flow path 100 includes an introduction path 93, a first flow path 91, a second flow path 92 and an intermediate path 94.
As illustrated in Figures 6 and 8, the introduction path 93, the first flow path 91, at least part of the second flow path 92 and the intermediate path 94 of the distribution flow path 100 are formed in the element of flow path 90 housed in the first housing 66. Therefore, it can be stated that an element in which at least a part of the compressed air flow path is formed is housed in the first housing 66.
The flow path element 90 is made of a flat plate shape having a recess 90a. When the flow path member 90 is partially housed in the first housing 66, a rear wall 90b of the recess 90a constitutes a part of the rear wall 6b of the slot 6a (a part of the rear wall 66b of the slot 66a formed in the first housing 66) . Further, the back wall 90b of the recess 90a of the flow path member 90 and a surface (back surface) on a side opposite the recess 90a of the flow path member 90 are exposed without being covered by the first housing 66. The compressed air inlet port 73 and first injection port 71 are formed at portions to which the flow path member 90 is exposed.
A detailed description of a part of the distribution flow path 100 will next be given with reference to Figures 8 to 10. In the following description, upstream in an air flow direction (upstream in a direction of fluid flow) "and" downstream in an air flow direction (downstream in a fluid flow direction) "indicate respectively upstream and downstream of the flow path in the direction in which the compressed air flows ( fluid).
As illustrated in Figures 8 and 9, the introduction path 93 is a linear flow path having one end equipped with the compressed air inlet port 73. A cross section cut along a plane perpendicular to the longitudinal direction of the introduction path 93 is made with a circular shape. In the present embodiment, the introduction path 93 is formed to extend perpendicular to the back surface (specifically, the back surface of the flow path element 90) from the back surface side of the yarn monitor 6. The The other end of the introduction path 93 is connected to the intermediate path 94. In the present embodiment, the introduction path 93 is formed entirely in the flow path element 90.
As illustrated in Figures 8 and 10, the first flow path 91 is a linear flow path having one end equipped with the first injection port 71. A cross section cut along a plane perpendicular to the longitudinal direction of the first flow path 91 is made with a circular shape. In the present embodiment, the first flow path 91 is formed to extend perpendicular to the rear wall 6b (rear wall 90b) from the rear wall 6b of the slot 6a (the rear wall 66b of the slot 66a of the first housing 66, more specifically, the rear wall 90b of the flow path element 90). The other end of the first flow path 91 is connected to the intermediate path 94. In the present embodiment, the first flow path 91 is entirely formed in the flow path element 90.
As illustrated in Figures 6, 8, 10, and 11, the second flow path 92 is a linear flow path having one end equipped with the second injection port 72. The second flow path 92 is folded several times at the center and also the shape of the cross section of the flow path has changed variously in the center. The second flow path 92 is formed over a plurality of elements (specifically, the flow path element 90, the first housing 66 and the second housing 67). Specifically, in the second flow path 92, a short flow path from the end to be connected to the intermediate path 94 to the central part is formed in the flow path element 90, and the flow path from the central part to the second port injection 72 is formed in the first casing 66. As illustrated in FIGS. 5, 6 and the like, at a portion near the second injection port 72, an upstream portion in the direction of movement of the yarn of the flow path is formed in the first casing 66, and the remaining portion (a downstream portion in the direction of movement of the yarn) is formed in the second casing 67.
[0100] The portion formed in the flow path element 90 in the second flow path 92 is formed by a surface (bottom surface) on one side in a thickness direction of the flow path element 90 so as to extend perpendicular to the lower surface, as illustrated in Figure 10. The second injection port 72 is formed at one end of the second flow path 92, as described above, and the other end of the second flow path 92 is connected to the intermediate path 94.
[0101] The second injection port 72 is made with an elongated shape along the direction of movement of the yarn. Looking in the direction perpendicular to the rear wall 6b of the slot 6a, a trapezoidal guiding surface 72a adapted to guide the compressed air injected by the second injection port 72 is arranged continuously at the second injection port 72. Of the two groups of opposite sides of the trapezoid formed by the guide surface 72a, the opposite sides parallel to each other are directed so as to lie along the direction of movement of the yarn. The outlet (second injection port 72) of the compressed air is arranged so as to lie on a shorter side (short side) of the opposite parallel sides. The compressed air injected from the second injection port 72 flows along the guide surface 72a. Of the remaining opposite sides of the guide surface 72a, the upstream side in the direction of yarn movement is substantially perpendicular to the yarn path, while the downstream side in the direction of yarn movement is inclined relative to the yarn path so as to be downstream in the direction of movement of the yarn as it approaches the slot 6a. When guided by a roof surface (second driving surface) 72b arranged with the downstream side in the direction of yarn movement of the guiding surface 72a as a side and a floor surface (third driving surface) 72c arranged with the side upstream in the direction of movement of the yarn as one side, the compressed air injected from the second injection port 72 flows towards the second injection direction (towards the longer side of the opposite parallel sides of the guide surface 72a). The roof surface 72b is a plane which extends in a direction parallel to the downstream side in the direction of yarn movement of the guide surface 72a and which extends in a depth direction (front and rear direction) of the monitoring device. yarn 6. The floor surface 72c is a plane which extends in a direction parallel to the upstream side in the direction of movement of the yarn of the guide surface 72a and which extends in the direction of the depth of the yarn monitor 6.
[0102] Therefore, looking in the direction perpendicular to the rear wall 6b of the slot 6a, the direction (first injection direction) in which the compressed air is expelled from the second injection port 72 can vary, as illustrated in Figure 7, depending on of the position in the direction of movement of the yarn and may be a direction which approaches perpendicularly to the side wall 6d of the slot 6a, or it may be a direction which is inclined downstream in the direction of movement of the yarn as it approaches the side wall 6d . Therefore, the compressed air can be injected over a wide field towards the inside of the transit space of the yarn 68 formed by the slot 6a. Of the compressed air injected towards a side wall 6d from the first injection port 71, the compressed air injected in an inclined direction in the above manner passes through the downstream position of the upstream yarn guide 64 and subsequently swirls spiral into the slot 6a, and is blown indirectly against the rear wall 6b and the other side wall 6c at a portion in which the sensing section 70 is arranged. The fiber waste attached to the downstream surface in the direction of movement yarn and the like of the upstream yarn guide 64 is detached when the compressed air is blown towards it, and the lint is blown away to the position downstream of the yarn path along with the air flow flowing with a spiral motion as described above. Therefore, it is possible to prevent the already blown-away fiber waste from returning to the upstream yarn guide 64 with the yarn in transit 21.
[0103] The intermediate path 94 illustrated in Figures 8 and 10 is a linear flow path, where one end of the introduction path 93, one end of the first flow path 91 and one end of the second flow path 92 they are each connected to different positions in this order downstream in the direction of air flow. A cross section cut along a plane perpendicular to the longitudinal direction of the intermediate path 94 is made with a circular shape. The intermediate path 94 extends in a direction other than any of the direction in which the introduction path 93 extends, the direction in which the first flow path 91 extends, and the direction in which the second flow path 92 extends. In the present embodiment, the intermediate path 94 extends in a direction perpendicular to all directions between the direction in which the introduction path 93 extends, the direction in which the first flow path 91 extends and the direction in which the second flow path 92 extends. In the present embodiment, the end of the introduction path 93 is connected to one end of the intermediate path 94, the end of the second flow path 92 is connected to the other end of the path intermediate 94 and the end of the first flow path 91 is connected to the central part between those connected portions. Thus, in the intermediate path 94, the end where the first flow path 91 is connected to the intermediate path 94 is positioned downstream in the direction of air flow relative to the end where the introduction path 93 is connected to the path Intermediate path 94. This means that the position where the first flow path 91 is connected to the intermediate path 94 is displaced downstream in the direction of air flow relative to the position where the introduction path 93 is connected to the intermediate path 94.
[0104] According to the distribution flow path 100 configured as above, the compressed air introduced by the compressed air introduction port 73 into the yarn monitoring device 6 (first casing 66) is distributed to the first flow path 91 and to the second flow path 92 and injected by the respective injection ports (first injection port 71 and second injection port 72).
[0105] Therefore, it is possible to prevent the injection quantity from the first injection port 71 from being excessively large due to the compressed air introduced by the introduction path 93 being diverted and flowing towards the first flow path 91.
[0106] Therefore, the yarn monitoring device 6 has a configuration for regulating at least one of the amount of flow and the intensity of the compressed air to be expelled depending on each of the plurality of cleaning targets.
[0107] In addition to the above aspects, the distribution flow path 100 in the present embodiment has various configurations for appropriately adjusting the injection quantity of the compressed air from the respective injection port (first injection port 71 and second injection port 72). These configurations will be described below.
[0108] As illustrated in Figure 10, a diameter (diameter of the end of the first flow path 91) D1 of a circular opening (first intermediate opening) in which the first flow path 91 is connected to the intermediate path 94 is formed so as to be smaller than a diameter (diameter of the end of the introduction path 93) D3 of a circular opening (intermediate introduction opening) in which the introduction path 93 is connected to the intermediate path 94 (D1 <D3). Thus, it is possible to reliably prevent the compressed air introduced by the introduction path 93 from being significantly diverted and flowing to the first flow path 91 thereby causing a shortage of the amount of flow on the side of the second flow path. 92. [0109] The diameter D1 of the first intermediate opening and a diameter (diameter of the end of the second flow path 92) D2 of a circular opening (second intermediate opening where the second flow path 92 is connected to the intermediate path 94) are each formed to be smaller than a diameter D4 of the intermediate path 94 (D1 <D4, D2 <D4). Thus, in most cases, the compressed air flowing downstream in the air flow direction from the intermediate path 94 flows to each of the first flow path 91 and the second flow path 92 with a given ratio of the cross-sectional area of the first intermediate aperture and the cross-sectional area of the second intermediate aperture. Thus, it is possible to prevent compressed air introduced from the introduction path 93 to the intermediate path 94 from being significantly diverted and flowing into the first flow path 91 or the second flow path 92.
[0109] The diameter D1 of the first intermediate opening is formed to be smaller than the diameter D2 of the second intermediate opening (D1 <D2). Thus, the amount of compressed air flow flowing in the first flow path 91 can be reduced relative to the amount of compressed air flow flowing in the second flow path 92. As a result, in the present embodiment, a small amount of compressed air is supplied to the first injection port 71 so that the cutting device 16 can be cleaned sufficiently simply by blowing the compressed air towards the blade edge 81a in a localized manner, while a relatively large quantity of compressed air can be supplied to the second injection port 72 in such a way as to blow the compressed air with a large force over a large field (i.e., over a wide width of the slot 6a) for the sensing section 70. The amount of air flow Feed tablet can be adjusted according to each cleaning goal, and cleaning can be performed effectively.
[0110] As illustrated in Figures 8 and 10, the position where the second flow path 92 is connected with respect to the intermediate path 94 is located downstream in the air flow direction of the position where the first flow path 91 is connected with respect to the intermediate path 94. In the present embodiment, the first flow path 91 and the second flow path 92 are therefore connected with respect to the intermediate path 94 in this order from a position closer to the portion where the path is connected intermediate 94 and introduction path 93. Consequently, a simple flow path can be realized.
[0111] Generally, in order to make the amount of compressed air injected to the first cleaning target less than the amount of compressed air injected to the second cleaning target, the connection area of the first flow path 91 relative to the path intermediate path 94 is preferably arranged downstream of the connection area of the second flow path 92 with respect to the intermediate path 94 since the pressure loss increases downstream in the air flow direction. In this regard, in the present embodiment, by configuring the diameter, cross-sectional area, direction of extension and the like of each flow path in the aforementioned manner, the reverse arrangement (i.e., the arrangement in which the The connection area of the first flow path 91 with respect to the intermediate path 94 is positioned upstream in the air flow direction of the connection area of the second flow path 92 with respect to the intermediate path 94). As a result, the degree of freedom of the design has increased.
[0112] As illustrated in Figure 6, the first injection port 71 is arranged to blow the compressed air towards the blade edge 81a of the blade 81 of the cutting device 16 in a waiting state. An end where the first flow path 91 is connected to the intermediate path 94 is displaced downstream in the direction of air flow relative to an end where the introduction path 93 is connected to the intermediate path 94. Generally, it is difficult to machine a small hole (for example, a circular hole having a diameter equal to or less than 1 mm) relative to the flow path element 90 made of metal. In this regard, according to the configuration of the present embodiment, it is required to pass through the flow path folded in a form of a crank in the path from the introduction path 93 to the first flow path 91 and, consequently, even if the diameter of the first flow path 91 is not designed to be small, the force with which compressed air is injected from the first flow path 91 (first injection port 71) can be weakened to some extent, and the blade edge 81a, in which the waste of fibers such as filaments and the like of the yarn can be easily captured, can be cleaned in a localized manner using a small amount of compressed air. Therefore the waste of compressed air can be reduced.
[0113] As illustrated in Figure 6, the introduction path 93 and the first flow path 91 extend parallel to each other. The introduction path 93 is formed to extend perpendicular to the back surface (specifically, the back surface of the flow path member 90) from the back surface side of the yarn monitor 6. The first flow path 91 is formed to extend perpendicular to the rear wall 66b from the rear wall 6b of the slot 6a (the rear wall 66b of the slot 66a, more specifically the rear wall 90b of the recess 90a of the flow path member 90). Thus, the introduction path 93 and the first flow path 91 can be formed easily.
The intermediate path 94 extends linearly perpendicular to the introduction path 93 and the first flow path 91. Since the intermediate path 94 extends linearly, the flow path can be easily fabricated.
[0115] The opening area of the second injection port 72 is formed so as to be larger than an opening area of the second intermediate opening (area of a portion designated by the diameter D2 of Figure 10). Thus, the compressed air is injected from the second injection port 72 having a relatively large area relative to the sensing section 70. Therefore, it is suitable for cleaning the sensing section 70 which needs to be kept clean over a large area. .
[0116] Furthermore, in the present embodiment, the direction (second injection direction) in which the compressed air is injected from the second injection port 72 is the direction not only towards the sensing section 70 but also towards the yarn guide upstream 64. Thus, by also cleaning the upstream yarn guide 64 with the sensing section 70, it is possible to reliably prevent the lint from sticking to the sensing performance related portion of the sensing section 70. This aspect will be described later in detail.
[0117] As illustrated in Figures 4 and 7, the upstream yarn guide 64 is arranged at a lower end of the support 69 (see Figure 5) mounted on the second casing 67. Conversely, the second injection port 72 is arranged over a relatively large range in the direction of movement of the yarn. More specifically, the second injection port 72 comprises a portion arranged downstream in the direction of movement of the yarn of the upstream yarn guide 64. This means that, as illustrated in Figure 7, considering a virtual plane P1 which passes through a upper end (downstream end in the direction of yarn movement) of the upstream yarn guide 64 and which is perpendicular to the direction of yarn movement, most of the second injection port 72 is disposed on an upper side (downstream in the direction of yarn movement) of the virtual plane P1. According to this configuration of the second injection port 72, the compressed air injected from the second injection port 72 flows in a portion near the downstream position in the direction of movement of the yarn of the upstream yarn guide 64. Therefore, the air tablet injected by the second injection port 72 uniformly reaches the portion near the upstream yarn guide 64 and, consequently, the fiber waste attached downstream (upper side) in the direction of movement of the yarn of the yarn guide a mount 64 can be removed satisfactorily. As a result, it is possible to prevent the fiber waste attached to the upper side of the upstream yarn guide 64 from remaining in the yarn transit space 68 (in particular, the portion near the incident surface and the light-emitting surface of the section 70) with yarn 21.
[0118] Looking in a direction perpendicular to the rear wall 6b of the slot 6a, the direction in which the compressed air is injected from the second injection port 72 varies according to the position in the direction of movement of the yarn, as illustrated in Figure 7. The injection direction includes an inclined direction to be directed downstream in the direction of movement of the yarn as it approaches the side wall 6d of the slot 6a. Therefore, when the waste of fibers attached to the downstream surface in the direction of movement of the yarn and the like of the upstream yarn guide 64 is detached by the injection of compressed air, the waste of fibers is blown away to the position downstream of the yarn path together with the spiral-formed compressed air flow inside the slot 6a. Therefore, it is possible to prevent the fiber waste already swept away from returning to the transit space of the yarn 68 with the yarn in transit 21.
As described above, the yarn monitoring device 6 of the present embodiment comprises the compressed air introduction port 73, the first injection port 71, the second injection port 72 and the distribution flow path 100. The compressed air is introduced into the compressed air inlet port 73. In the first injection port 71, the direction in which the compressed air is injected is assumed to be a direction towards the blade edge 81a of the blade 81 of the cutting device. 16 which serves as the first cleaning target. In the second injection port 72, the direction in which the compressed air is injected is assumed to be a direction towards the sensing section 70 (incident surface and light-emitting surface thereof) which acts as a second cleaning target. The distribution flow path 100 supplies the compressed air introduced from the compressed air inlet port 73 to the first injection port 71 and to the second injection port 72. The distribution flow path 100 includes an inlet path 93, a first flow path 91, a second flow path 92 and an intermediate path 94. The compressed air inlet port 73 is formed at one end of the inlet path 93. The first injection port 71 is formed at a one end of the first flow path 91. The second injection port 72 is formed at one end of the second flow path 92. The other end of the introduction path 93, the other end of the first flow path 91 and the other end of the second flow path 92 are each connected to the intermediate path 94 at different positions in the direction of air flow (direction of fl fluid flow). The intermediate path 94 extends in a direction other than any of the direction in which the introduction path 93 extends, the direction in which the first flow path 91 extends, and the direction in which the second flow path 92 extends. .
[0120] Therefore, the compressed air introduced by the compressed air inlet port 73 can be distributed to the first flow path 91 and to the second flow path 92 and, by appropriately setting the size and the like of the first injection port 71 and of the second injection port 72, the injection quantity of the compressed air from the respective injection ports can be adjusted appropriately. Thus, fluid of an appropriate flow rate or intensity can be injected for cleaning depending on each of the plurality of cleaning targets. Since the other end of the first flow path and the other end of the introduction path are connected to the intermediate path at different locations, it is possible to prevent the fluid introduced by the introduction path from being significantly diverted and flowing into the first flow path. flow.
[0121] Furthermore, in the yarn monitoring device 6 of the present embodiment, the diameter D1 of the first intermediate opening is smaller than the diameter D3 of the intermediate introduction opening ((D1 <D3). This means that the first intermediate opening is smaller than the intermediate introduction opening.
Thus, it is possible to reliably prevent the compressed air introduced by the introduction path 93 from being significantly diverted and flowing into the first flow path 91. As a result, it is possible to prevent the compressed air from being injected in a manner excessive towards the cutting device 16 and is wasted.
[0123] Furthermore, in the yarn monitoring device 6 of the present embodiment, the diameter D1 of the first intermediate opening and the diameter D2 of the second intermediate opening are both smaller than the diameter D4 of the intermediate path 94 (D1 <D4, D2 <D4 ). This means that the first intermediate opening and the second intermediate opening are both smaller than a cross section in which the intermediate path 94 is cut along a plane perpendicular to the direction of air flow.
[0124] Thus, it is possible to prevent the compressed air introduced from the introduction path 93 to the intermediate path 94 from being diverted and fed significantly into the first flow path 91 and the second flow path 92. Furthermore, the compressed air can be appropriately distributed and fed to the first flow path 91 and the second flow path 92 by appropriately setting the cross-sectional area and the like of the first intermediate opening and the second intermediate opening.
[0125] Furthermore, in the yarn monitoring device 6 of the present embodiment, the diameter D1 of the first intermediate opening is smaller than the diameter D2 of the second intermediate opening (D1 <D2). This means that the first intermediate opening is smaller than the second intermediate opening.
[0126] Therefore, the flow amount of compressed air flowing in the first flow path 91 can be made less than the flow amount of compressed air flowing in the second flow path 92 and, furthermore, the amount of compressed air to be injected towards the cutting device 16 can be reduced with respect to the amount of compressed air to be injected towards the sensing section 70. Since the amount of compressed air to be blown can be varied according to the cleaning objective, the cleaning that uses the Compressed air can be effected overall effectively.
[0127] Furthermore, in the yarn monitoring device 6 of the present embodiment, the end where the second flow path 92 is connected to the intermediate path 94 in the intermediate path 94 is positioned downstream in the direction of air flow relative to at the end where the first flow path 91 is connected to the intermediate path 94.
[0128] The configuration of the flow path for supplying compressed air from the introduction path 93 to the first flow path 91 and to the second flow path 92 can therefore be simplified.
Furthermore, the yarn monitoring device 6 of the present embodiment comprises the cutting device 16 which acts as the first cleaning target and the sensing section 70 which acts as the second cleaning target. The cutting device 16 is adapted to cut the yarn 21. The detecting section 70 is adapted to detect the state of the yarn 21.
[0130] Therefore, the cutting device 16 as well as the sensing section 70 (specifically, the exit surface through which the light passes when it exits the light emitting element 37 and the incident surface through which the light passes when it enters in the light receiving element 38) can be satisfactorily cleaned by injecting the compressed air respectively from different injection ports.
[0131] In the yarn monitoring device 6 of the present embodiment, the first injection port 71 is arranged to blow the compressed air towards the blade edge 81a of the cutting device 16. The end where the first path of flow 91 is connected to the intermediate path 94 is arranged downstream in the direction of air flow with respect to the end where the introduction path 93 is connected to the intermediate path 94.
[0132] Therefore, the portion in which the fiber waste is easily captured in the cutting device 16 can be cleaned effectively in a concentrated manner. Furthermore, since the end where the first flow path 91 is connected to the intermediate path 94 is disposed in a position shifted downstream in the direction of air flow relative to the end where the introduction path 93 is connected to the path intermediate 94, it is possible to reliably prevent the fluid introduced by the introduction path 93 from being significantly diverted and flowing into the first flow path 91, and the force with which the compressed air is injected from the first injection port 71 can be weakened to some extent without reducing the diameter of the first flow path 91. Thus, the blade edge 81a of the blade 81 of the cutting device 16 can be satisfactorily cleaned with a small amount of compressed air.
[0133] The yarn monitoring device 6 of the present embodiment is provided with the slot 6a. The slot 6a has an open side, so that the yarn 21 to be monitored can be inserted from this side. The first injection port 71 is open in the rear wall 6b facing the side (open side) of the inner walls of the slot 6a. The first injection port 71 is arranged in a position displaced from the yarn path looking in the direction perpendicular to the rear wall 6b.
[0134] Thus, compressed air can be properly blown from the first injection port 71 to the blade edge 81a of the blade 81 of the cutter 16 in the waiting state in the retracted position from the yarn path to clean the cutting edge. 8la blade.
[0135] In the yarn monitoring device 6 of the present embodiment, the first injection port 71 is open in the rear wall 6b facing the side (open side) of the inner walls of the slot 6a, as described above. The direction of injection of the compressed air from the first injection port 71 is directed towards the side (open side) of the slot 6a. The direction of injection of the compressed air from the second injection port 72 is directed towards a side wall (side wall 69d of the side) different from the rear wall 69b of the inner walls of the slot 69a through the side (open side) of the slot 69a. A part of the injection direction of the compressed air from the second injection port 72 is inclined with respect to the side wall 69d.
[0136] Therefore, with respect to the cutting device 16, a narrow region to be cleaned (region in which the blade edge 81a is arranged) can be intensively cleaned by injecting the compressed air from the first injection port 71 arranged at the rear wall 6b of the slot 6a towards the open side of the slot 6a. On the other hand, with respect to the sensing section 70, a wide region can be cleaned by injecting the compressed air from the second injection port 72 in the inclined direction with respect to the side wall 6d from the open side of the slot 6a towards the side wall 6d of the slot 6a in such a way that the blown compressed air performs a whirling motion and is also blown indirectly towards the other internal wall (rear wall 6b and the other side wall 6c).
[0137] Furthermore, in the yarn monitoring device 6 of the present embodiment, the introduction path 93 of the first flow path 91 extends in directions parallel to each other.
[0138] Therefore, the flow path configuration can be simplified.
[0139] In the yarn monitoring device 6 of the present embodiment, the intermediate path 94 extends linearly perpendicular to the introduction path 93 and to the first flow path 91.
[0140] Therefore, the intermediate path 94 can be formed easily through a cutting action, using for example a drill and the like.
[0141] Furthermore, the yarn monitoring device 6 of the present embodiment further comprises the cutting device 16 which acts as a first cleaning target and the flow path element 90 adapted to support the cutting device 16. The device 16 is adapted to cut yarn 21. A portion of the dispensing flow path 100 is formed in the flow path element 90.
[0142] Thus, the flow path element 90 has the function of supporting the cutting device 16 and the function of distributing the compressed air, so that a miniaturization and a reduction in the number of parts can be realized.
[0143] The yarn monitoring device 6 of the present embodiment further comprises the first casing 66 and the second casing 67. The first casing 66 houses at least a part of the cutting device 16. The second casing 67 supports the sensing section 70 by means of the support 69. The flow path element 90, in which a part of the distribution flow path 100 is formed, is at least partially housed in the first housing 66.
[0144] This means that since a large number of electrical components (for example, a large circuit board (not shown)) are required to operate the sensing section 70 be housed in the second enclosure 67, there is not much extra space. In this regard, in the configuration of the present embodiment, the flow path element 90 in which a part of the distribution flow path 100 is formed, is partially housed in the first casing 66 (with an exposed part). Therefore, the flow path to be formed on the side of the second wrapper 67 can be reduced to simplify the configuration of the entire yarn monitoring device 6.
[0145] Furthermore, in the yarn monitoring device 6 of the present embodiment, the introducing path 93, the first flow path 91, a part of the second flow path 92 and the intermediate path 94 are formed in the path element flow 90.
[0146] Therefore, the flow path to be formed at portions (e.g., the first casing 66, the second casing 67, and so on) other than the flow path element 90 can be reduced, such that the configuration of the entire yarn monitoring device 6 can be further simplified.
[0147] In the yarn monitoring device 6 of the present embodiment, the opening area of the second injection port 72 is greater than the opening area (circle area having the diameter D2) than the opening in which the second path flow path 92 is connected to intermediate path 94.
[0148] Thus, the compressed air is injected from the second injection port 72 having a relatively large opening area relative to the sensing section 70. Consequently, the sensing section 70 of a wider range than the blade edge 81a is satisfactorily clean.
[0149] In the yarn monitoring device 6 of the present embodiment, the compressed air introduction port 73 is formed on a surface on a side opposite to a side where the slot 6a in the yarn monitoring device 6 is formed.
[0150] Therefore, the hose 48 for supplying the compressed air is connected to the surface on the side opposite the open side of the slot 6a in the yarn monitoring device 6, so that an arrangement can be made in which it is less likely that the yarn 21 passing through the slot 6a interferes with the hose 48. Since the compressed air inlet port 73 is arranged on the surface on the side opposite the open side of the slot 6a, the flow path from the air inlet port compressed air 73 to the first injection port 71 and to the second injection port 72 (for injecting the compressed air into the slot 6a) can be easily shortened and, consequently, the compressed air can be supplied to the respective injection ports with a small loss of pressure.
[0151] Furthermore, the yarn monitoring device 6 of the present embodiment further comprises the upstream yarn guide 64 which acts as an element for adjusting the yarn path. The upstream yarn guide 64 is arranged upstream in the yarn movement direction of the sensing section 70 to adjust the yarn path, which is the path of the passing yarn 21 in the yarn transit space 68. injection 72 is formed towards a direction in which at least a portion of the injected compressed air is blown to a region including the upstream yarn guide 64. The second injection port 72 is formed to include a portion disposed downstream in the direction of movement yarn of the upstream yarn guide 64.
[0152] Therefore, by injecting the compressed air from the second injection port 72, the upstream yarn guide 64 arranged upstream in the yarn movement direction of the sensing section 70 can also be cleaned in addition to the sensing section 70. Therefore it is possible to exclude the possibility that the sensing performance of the sensing section 70 is not maintained high due to the fiber waste attached to the upstream yarn guide 64 which enters the sensing region of the transit space of the yarn 68 with the yarn 21 and remains in the detection region.
The preferred embodiment of the present invention has been described above but the configuration described above can be modified as follows.
[0154] In the embodiment described above, the injection direction (second injection direction) of the compressed air from the second injection port 72 is assumed to be a direction from the open side of the slot 6a towards the side wall 6d of one side of the slot 6a inclined with respect to the side wall 6d. However, alternatively, the second injection direction can be a direction from the open side of the slot 6a towards the side wall 6c positioned on the opposite side of the side wall 6d in the slot 6a inclined to the side wall 6c.
[0155] In the embodiment described above, the flow path cross sections of the introduction path 93, the first flow path 91, the intermediate path 94 and the like have a circular shape. However, the flow path cross sections can be made with shapes other than a circular shape (for example, a polygon). Furthermore, the opening of the portion in which each of the introduction path 93, the first flow path 91 and the second flow path 92 is connected to the intermediate path 94 can be made with other shapes (for example, a polygon) instead of be made with a circular shape as in the above embodiment.
[0156] In the embodiment described above, compressed air is injected from the first injection port 71 and from the second injection port 72, but the present invention is not limited thereto and a gas (fluid) other than the air. For example, a gas containing a small amount of liquid may be injected.
[0157] The shape and size of the first injection port 71 and the second injection port 72 are not limited to those described above and can be modified appropriately. For example, the shape of the second injection port 72 is preferably a shape in which at least a part of the injected fluid uniformly reaches an area near the upstream yarn guide 64 and, for example, can be a parallelogram shape , rectangle, ellipse and trapezoid. The second injection port 72 can be assumed as a three-dimensional ejection port in which the guide surface 72a, the roof surface 72b and the floor surface 72c are integrated.
[0158] In the embodiment described above, the sensing section 70 is configured as an optical sensor comprising a light emitting element 37 and a light receiving element 38. However, the present invention is not limited thereto and they can be one or a plurality of light emitting elements and one or a plurality of light receiving elements are provided. In the embodiment described above, the yarn monitoring device 6 monitors the intensity of the light shielded by the yarn to detect the thickness of the yarn, but the present invention is not limited thereto and, for example, the yarn monitoring device 6 it can monitor the intensity of the light reflected by the yarn 21 to detect the presence / absence of foreign substances contained in the yarn 21.
[0159] In the embodiment described above, the sensing section 70 is configured as an optical sensor but, alternatively, the sensing section 70 can be configured for example as a capacitive sensor. Also in this case the detection performance is lowered if the fiber waste is accumulated in a portion near the detection section in the slot 6a and, consequently, it is advisable to remove the fiber waste by blowing away the fiber waste according to the configuration described above.
[0160] As described above, the sensing section 70 is not limited to a configuration comprising an assembly of (one) optical or capacitive sensor. For example, two groups of sensors can be arranged in different positions in the direction of movement of the yarn. In the two groups of sensors, one can be an optical sensor and the other can be a capacitive sensor, both can be optical sensors or both can be capacitive sensors.
[0161] In the embodiment described above, the yarn 21 flows from the lower side towards the upper side. However, alternatively, the yarn 21 can flow from the upper side to the lower side. In this case, the yarn monitoring device 6 illustrated in Figure 4 and the like can be used upside down.
The yarn monitoring device described in the embodiment described above is not limited to being used in the automatic winder and, for example, can be attached and used in other types of textile machines such as a spinning machine.
[0163] In the embodiment described above, the compressed air flowing from the intermediate path 94 to the second flow path 92 flows along a path perpendicular to the intermediate path 94 in the flow path element 90, but the compressed air flows along a path in an inclined direction in a diagonal direction to the intermediate path 94 downstream of the flow path element 90. However, the present invention is not limited thereto and compressed air can also flow along a path perpendicular to the path intermediate 94 downstream of flow path element 90. An example is shown in FIG. 12.

权利要求:
Claims (16)
[1]
1. Yarn monitoring device (6) characterized by comprising:a fluid introduction port (73);a first fluid injection port (71) for injecting a fluid in a direction towards a first cleaning target (16);a second fluid injection port (72) for injecting a fluid in a direction towards a second cleaning target (70); isa fluid flow path (100) adapted to supply a fluid introduced from the fluid introduction port (73) to the first injection port (71) and the second injection port (72);wherein the fluid flow path (100) comprises:an introduction path (93) having one end equipped with the fluid introduction port (73),a first flow path (91) having one end provided with the first injection port (71),a second flow path (92) having one end provided with the second injection port (72), ean intermediate path (94) having the other end of the introduction path (93), the other end of the first flow path (91) and the other end of the second flow path (92) connected at different locations, and extending in a direction other than any of a direction in which the introduction path (93) extends, a direction in which the first flow path (91) extends, and a direction in which the second flow path extends (92), and in which:an opening in which the first flow path (91) is connected to the intermediate path (94) is smaller than an opening in which the introduction path (93) is connected to the intermediate path (94).
[2]
Yarn monitoring device (6) according to claim 1, characterized in that the opening in which the first flow path (91) is connected to the intermediate path (94) and an opening in which the second flow path flow path (92) is connected to the intermediate path (94) are both smaller than a cross section in which the intermediate path (94) is cut along a plane perpendicular to a fluid flow direction.
[3]
Yarn monitoring device (6) according to claim 1 or 2, characterized in that the opening in which the first flow path (91) is connected to the intermediate path (94) is smaller than an opening wherein the second flow path (92) is connected to the intermediate path (94).
[4]
Yarn monitoring device (6) according to one of claims 1 to 3, characterized in that, in the intermediate path (94), the other end of the second flow path (92) is positioned downstream in the direction fluid flow relative to the other end of the first flow path (91).
[5]
Yarn monitoring device (6) according to one of claims 1 to 4, characterized in that it further comprises:a cutting device (16) which acts as a first cleaning target and is adapted to cut a yarn; isa detection section (70) which acts as a second cleaning target and is adapted to detect a state of the yarn.
[6]
6. Yarn monitoring device (6) according to claim 5, characterized in thatthe first injection port (71) is arranged to blow fluid towards a blade edge (81a) of the cutter (16), andin the intermediate path (94), the other end of the first flow path (91) is positioned downstream in a fluid flow direction relative to the other end of the introduction path (93).
[7]
7. Yarn monitoring device (6) according to claim 6, characterized in thatthe yarn monitoring device (6) is equipped with a slot (6a) delimited by internal walls (6b, 6c, 6d) and having an open side (6a) for the insertion of a yarn (21) to be monitored,the first injection port (71) is open in a first inner wall (6b) of said inner walls which delimit the slot, facing towards said open side of the slot (6a), andthe first injection port (71) is disposed in a position displaced by a yarn path looking in a direction perpendicular to the first inner wall (6b).
[8]
Yarn monitoring device (6) according to one of claims 1 to 6, characterized in thatthe yarn monitoring device (6) is equipped with a slot (6a) delimited by internal walls (6b, 6c, 6d) and having an open side (6a) for the insertion of a yarn (21) to be monitored,the first injection port (71) is open in a first internal wall (6b) of the slot, facing towards said open side of the slot (6a),a direction of injection of the fluid from the first injection port (71) is directed towards said open side of the slot (6a), a direction of injection of the fluid from the second injection port (72) is directed from said open side of the slot (6a ), to a second internal wall (6d) different from the first internal wall (6b) of the slot (6a), anda part of the injection flow emitted by the second injection port (72) is inclined with respect to the second inner wall (6d).
[9]
Yarn monitoring device (6) according to one of claims 1 to 8, characterized in that the introduction path (93) and the first flow path (91) extend in parallel directions.
[10]
Yarn monitoring device (6) according to claim 9, characterized in that the intermediate path (94) extends linearly perpendicular to the introduction path (93) and to the first flow path (91).
[11]
Yarn monitoring device (6) according to one of claims 1 to 10, characterized in that it further comprises:a cutting device (16) which acts as a first cleaning target and is adapted to cut a yarn; isa first casing (66) adapted to house at least a part of the cutting device (16),wherein an element in which at least a part of the fluid flow path (100) is formed is housed at least partially in the first housing (66).
[12]
Device for monitoring a yarn (6) according to claim 5, characterized in that it further comprises:a first casing (66) adapted to at least partially house the cutting device (16); isa second casing (67) adapted to at least partially house the sensing section (70),wherein the first casing (66) at least partially houses a metal element (90) in which at least a part of the fluid flow path (100) is formed.
[13]
Yarn monitoring device (6) according to claim 12, characterized in that the introduction path (93), the first flow path (91), at least part of the second flow path (92) and the intermediate path (94) are formed in the metal member (90).
[14]
Yarn monitoring device (6) according to one of claims 1 to 13, characterized in that an opening area of the second injection port (72) is larger than an opening area of an opening in wherein the second flow path (92) is connected to the intermediate path (94).
[15]
Yarn monitoring device (6) according to claim 7 or 8, characterized in that the fluid introduction port (73) is formed on a surface on one side opposite to one side in which the slot (6a) is formed in the yarn monitoring device (6).
[16]
Yarn monitoring device (6) according to claim 5 or 6, characterized in that it further comprisesa yarn path adjusting element (64) disposed upstream of the sensing section (70) in a direction of yarn movement to regulate a yarn path, which is a yarn path (21) in transit through a space of transit of the yarn,wherein the second injection port (72) is formed towards a direction in which at least a portion of the injected fluid is blown into a region including the yarn path adjusting member (64), and the second injection port (72 ) is formed to include a portion disposed downstream of the yarn path adjusting member (64) in the direction of movement of the yarn.

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同族专利:

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引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

JPS61105369U|1984-12-13|1986-07-04|

---

AT66736T|1987-12-24|1991-09-15|Barco Automation Nv|DEVICE FOR MEASURING A THREAD.|

---

JP2936690B2|1990-10-09|1999-08-23|東レ株式会社|Thread break detection method|

---

JPH07125924A|1993-11-04|1995-05-16|Murata Mach Ltd|Package inspecting device|

---

JPH10305967A|1997-04-30|1998-11-17|Murata Mach Ltd|Slab detecting device|

---

JP4051801B2|1999-03-03|2008-02-27|村田機械株式会社|Yarn processing method and apparatus therefor|

---

JP2001261233A|2000-03-21|2001-09-26|Murata Mach Ltd|Cleaning device for yarn winder|

---

DE102004003174A1|2004-01-22|2005-08-11|Saurer Gmbh & Co. Kg|Device for detecting a thread|

---

JP2005232650A|2004-02-23|2005-09-02|Murata Mach Ltd|Method for monitoring yarn and device for the same|

---

JP5953911B2|2012-04-27|2016-07-20|村田機械株式会社|Yarn monitoring device and yarn winding machine provided with the same|

---

法律状态:

优先权:

---

申请号 | 申请日 | 专利标题

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JP2016025362A|JP2017141107A|2016-02-12|2016-02-12|Yarn monitoring device|

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