• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a machine for a yarn (B), which is subjected to a spool for feeding the yarn (B) ) and a yarn coming from a winding section; an acquisition section of the yarn;a resistance acquisition section (120);bobbin (B) is wound to form a bobbin, and an inspection mode (in which the size is strength of the spliced) (120) are issued as inspection values.The invention also relates to an automatic winder and a method for inspecting the spliced ​​portion of the yarn.
    公开号:CH710864B1
    申请号:CH00297/16
    申请日:2016-03-08
    公开日:2019-10-15
    发明作者:Nakade Kazuhiko；Nakagawa Takashi；Ikemoto Tomonari
    申请人:Murata Machinery Ltd；
    IPC主号:
    专利说明:

    Description
    Introduction to the invention
    1. Field of the invention [0001] The present invention relates to a yarn winding machine, an automatic winder and a method for inspecting a spliced portion of a yarn.
    2. Description of the prior art [0002] A yarn winding machine suitable for winding a yarn of a yarn feeding reel in a package is known. In the yarn winding machine, after a yarn defect is removed or the yarn feeding reel is replaced, a yarn joining device is performed by joining a lower yarn coming from the bobbin for feeding the yarn and an upper yarn from a cone. In such a yarn winding machine, when settings such as a type of yarn, a count and the like are modified to produce a bobbin of a predetermined specification, for example a yarn joining nozzle is replaced in the yarn joining device or adjusted a set element (for example, the length of yarn, the time of application of the twist or the like) in the joining device of a yarn.
    [0003] When the setting in the yarn winding machine is changed, a size or strength of a spliced portion of the yarn, which is a portion spliced by the splicing device of a yarn, is inspected to check whether the nozzle splice of the replaced yarn is a suitable nozzle or if the adjustment of the splicing device of a yarn has been made correctly.
    [0004] Specifically, the sampling of the yarn including the spliced portion of the yarn is carried out a plurality of times for each yarn winding machine in which the setting has been changed. Next, the size of the spliced portion of the yarn is visually inspected and the strength of the spliced portion of the yarn is inspected with a measuring instrument arranged separately (see for example JP S55-101 561 A and JP H01-024 706 B).
    [0005] However, when the size of the spliced portion of the yarn is visually inspected, it is possible that the accuracy of the inspection is not kept constant. In addition, when the resistance of the spliced portion of the yarn is inspected by means of the measuring instrument, a lot of time and effort is required as special attention is required to associate the yarn winding machine and the sampled yarn and similar operations.
    Brief summary of the invention [0006] An object of the present invention consists in providing a yarn winding machine, an automatic winder and a method for inspecting a spliced portion of the yarn which facilitates the inspection of a size and resistance in a spliced portion of the yarn and which allows the accuracy of the inspection to be kept constant.
    [0007] A yarn winding machine of the present invention comprises a winding section adapted to wind a yarn from a yarn feeding reel supported by a bobbin support section; a yarn joining device adapted to join a yarn coming from the yarn feeding reel and a yarn coming from a cone between the bobbin support section and the winding section; a dimension acquisition section adapted to acquire a dimension of a spliced portion of the yarn in which the yarn is joined by means of the yarn joining device; a resistance acquisition section adapted to acquire a resistance of the spliced portion of the yarn; and a control section capable of switching between a normal mode, in which the yarn of the yarn feed reel is wound to form a package, and an inspection mode, in which the size and strength of the spliced portion of the yarn acquired from the dimension acquisition section and from the resistance acquisition section they are issued as inspection values.
    [0008] In the yarn winding machine, when the control section performs the inspection mode, the size and strength of the spliced portion of the yarn between the bobbin support section and the winding section, and the size are acquired and the acquired resistance are issued as inspection values. The size of the spliced portion of the yarn is issued as an inspection value in the yarn winding machine and, therefore, it is possible to maintain the accuracy of the inspection constant with respect to the visual inspection. In addition, the resistance of the spliced portion of the yarn is issued as an inspection value in the winding machine of a yarn and, therefore, the inspection can be performed in a simple way compared to the measurement using a measuring instrument. In the present, for example, the yarn winding machine can be a single winding unit and the control section can be arranged in the winding unit. Herein, the yarn winding machine can be comprised in an automatic winder comprising a plurality of winding units, and the control section may be able to collectively control the plurality of winding units.
    [0009] In the yarn winding machine of the present invention, in the inspection mode, the control section can cause the size acquisition section to acquire the size of the spliced portion of the
    CH 710 864 B1 yarn and subsequently inducing the resistance acquisition section to acquire the resistance of the spliced portion of the yarn.
    [0010] According to the yarn winding machine having this configuration, both the size and strength of a spliced portion of the yarn can be inspected reliably.
    In the yarn winding machine of the present invention, in the inspection mode, the control section can repeat, for a plurality of times, a series of cycles to induce the size acquisition section to acquire the portion size spliced of the yarn and, subsequently, to induce the resistance acquisition section to acquire the resistance of the spliced portion of the yarn.
    [0012] According to the yarn winding machine having this configuration, the accuracy of the inspection can be further improved.
    The yarn winding machine of the present invention may further include a yarn tension sensing device adapted to measure a tension of the yarn wound by the winding section, wherein the resistance acquisition section may comprise a section of grasping (holding section) designed to grasp (retaining) the yarn pulled out of the yarn feeding reel, a traction section designed to pull the yarn grasped by the gripping section, and a section for measuring the resistance designed to measure the resistance of the yarn pulled from the traction section between the gripping section and the traction section, and the control section can operate the yarn tension sensing device as a resistance measurement section in the inspection mode.
    According to this configuration, it is possible to measure the resistance of the yarn using the yarn tension detection device which is supplied as standard in the yarn winding machine without the need to separately prepare a dedicated device suitable for measuring the yarn resistance and therefore, it is possible to reduce the number of components and simplify configuration. Furthermore, since the yarn pulled out of the yarn feed reel is gripped by the gripping section when the strength of the yarn is measured, it is possible to prevent the portion in which the strength was measured from being wrapped in the bobbin (i.e., it is it is possible to prevent the formation of a package comprising the portion in which the resistance was measured).
    The yarn winding machine of the present invention may further comprise a yarn catching section adapted to grasp the yarn from the yarn feed reel and deliver the yarn to the yarn joining device when the yarn is cut, in to which the control section can operate the yarn catching section as a gripping section in the inspection mode.
    [0016] According to the yarn winding machine having this configuration, the yarn is grasped using the yarn capture section which is provided as standard in the yarn winding machine without the need to separately prepare a dedicated device for gripping the yarn when the strength of the yarn is measured and, therefore, it is possible to reduce the number of components and simplify the configuration.
    In the yarn winding machine of the present invention, the control section can control the winding section so that the spliced portion of the yarn is positioned between the yarn catching section and the winding section when the resistance of the spliced portion of the yarn is inspected in the inspection mode.
    [0018] According to the yarn winding machine having this configuration, for example, the strength of the spliced portion of the yarn can be inspected uniformly during the winding of the yarn, while preventing the spliced portion of the yarn from being wound in the package after inspection of the size of the spliced portion of the yarn.
    The yarn winding machine of the present invention may comprise a yarn monitoring device adapted to monitor the presence or absence of a yarn defect based on at least the size of the yarn, wherein the control section can activate the yarn monitoring device as a dimension acquisition section in the inspection mode.
    [0020] According to the yarn winding machine having this configuration, the size of the spliced portion of the yarn is inspected using the yarn monitoring device and, therefore, it is possible to reduce the number of components and simplify the configuration.
    The yarn winding machine of the present invention may further comprise a cutting device suitable for cutting the yarn when the yarn defect is detected by the yarn monitoring device, wherein the control section may not operate the device cut when the yarn defect is detected in the inspection mode.
    [0022] According to the yarn winding machine having this configuration, it is possible to reliably inspect both the size and the strength of a spliced portion of the yarn.
    The yarn winding machine of the present invention can comprise a setting section capable of accepting the execution of the inspection mode imparted by an operator, in which the control section can switch to the inspection mode following the 'acceptance of an inspection mode execution command from the setting section.
    CH 710 864 B1 [0024] According to the yarn winding machine having this configuration, the operator can measure the size and resistance of the spliced portion of the yarn with any timing. Therefore, for example, the inspection mode can be performed after changing the setting (batch), and the setting of the yarn joining device can be adjusted based on the result of the inspection.
    [0025] An automatic winder of the present invention comprises a plurality of the yarn winding machines described above; and a machine control device capable of controlling the plurality of yarn winding machines, wherein the control section is arranged on the machine control device.
    [0026] According to the automatic winder having this configuration, the inspection mode can be performed simultaneously in the plurality of yarn winding machines, or the inspection mode can be performed selectively with respect to one or a plurality of yarn winding machines . Therefore, even in the automatic winder comprising the plurality of yarn winding machines, it is possible to effectively inspect the size and strength of the spliced portion of the yarn.
    A method for inspecting a spliced portion of the yarn of the present invention is a method for inspecting a size and strength of a spliced portion of a yarn that uses a size acquisition section and a resistance measurement section arranged in a yarn winding machine, in the yarn winding machine adapted to wind the yarn unwound from a yarn feeding reel supported by a support section of the bobbin with a winding section to produce a bobbin, the process comprising a step yarn splicing, a first winding phase, a dimension acquisition phase, a grasping phase, a second winding phase and a resistance acquisition phase. In the splicing phase of the yarn, a yarn coming from the support section of the bobbin and a yarn from the winding section are joined. In the first winding step after the yarn joining step, the winding section wraps the yarn until a spliced portion of the yarn is passed through the size acquisition section, the spliced portion of the yarn not being wound in the bobbin. In the dimension acquisition phase, the dimension acquisition section acquires a dimension of the spliced portion of the yarn wound in the first winding phase. In the gripping phase after the dimension acquisition phase, the yarn is gripped upstream in a direction of movement of the yarn of the resistance measuring section. In the second winding step, the winding section pulls the yarn by winding the grabbed yarn in the grabbing step. In the resistance acquisition phase, the resistance measurement section acquires the tension of the yarn pulled in the second winding phase.
    In the process for inspecting the spliced portion of the yarn of the present invention, the size and strength of the spliced portion of the yarn are acquired as numerical values using the size acquisition section and the resistance measurement section arranged in the winding machine of the yarn. Therefore, the accuracy of the inspection can be kept constant with respect to the visual inspection, and the inspection can be performed easily compared to the measurement made using the measuring tool.
    In the method for inspecting the spliced portion of the yarn of the present invention, the yarn winding machine can comprise a cutting device suitable for cutting the yarn, and the process can further comprise a cutting step for cutting the yarn with the cutting device before the yarn joining phase.
    [0030] In the process for inspecting the spliced portion of the yarn, the yarn can be cut regardless of the presence or absence of the yarn defect, and the spliced portion of the yarn can be formed for inspection. Furthermore, even in the yarn winding machine without a dedicated device for cutting the yarn, the yarn can be cut using the cutting device which is supplied as standard in the winding machine.
    In the process for inspecting the spliced portion of the yarn of the present invention, the steps from the cutting phase to the acquisition of the resistance can be repeated.
    [0032] According to the procedure for inspecting the spliced portion of the yarn, the accuracy of the inspection can be further improved.
    In the method for inspecting the spliced portion of the yarn of the present invention, the size acquisition section can monitor the presence or absence of a defect based on the size of the yarn, and the resistance measurement section can measure a tension of the yarn wound by the winding section.
    [0034] According to the method for inspecting the spliced portion of the yarn, even in the yarn winding machine, it does not have a dedicated device for acquiring the size of the yarn and a dedicated device for acquiring the strength of the yarn, and the yarn strength can be acquired using the device for monitoring the presence or absence of the yarn defect (yarn monitoring device) and the yarn tension detection device which are supplied as standard in the yarn winding machine yarn. In the method for inspecting the spliced portion of the yarn of the present invention, the cutting device may not cut the yarn even when the defect of the yarn is detected by the dimension acquisition section between the dimension acquisition phase and the gripping.
    According to the method for inspecting the spliced portion of the yarn, both the size and strength of a spliced portion of the yarn can be inspected reliably.
    CH 710 864 B1 [0037] The method for inspecting the spliced portion of the yarn of the present invention further comprises a preparation step for acquiring information about the thickness of the yarn with the yarn monitoring device before the cutting step, wherein, in the preparation phase, the winding section can wind the yarn for a predetermined length and the size acquisition section can acquire the yarn thickness information without activating the cutting device even when a defect is found in the yarn .
    [0038] According to the method for inspecting the spliced portion of the yarn, even when the information of the thickness of the yarn which becomes an index for determining the defect of the yarn is not stored, the information can be acquired during the inspection of the spliced portion of the yarn and inspection of the size and strength of the yarn can be carried out.
    In the first winding step and in the second winding step of the process for inspecting the spliced portion of the yarn of the present invention, the winding section can wind the yarn at a predetermined speed lower than a winding speed of the yarn in the production of the fortress. The predetermined speed indicated herein can tolerate a very small variation in speed.
    According to the method for inspecting the spliced portion of the yarn, a strength and an elongation property can be measured.
    [0041] According to the present invention, it is possible to facilitate the inspection of the size and strength in the spliced portion of the yarn and maintain the accuracy of the inspection constant.
    Brief description of the drawings [0042]
    Fig. 1 is a schematic view of an automatic winder comprising a winding unit according to an embodiment;
    fig. 2 is a schematic view illustrating a schematic configuration of the wrapping unit of fig. 1;
    fig. 3 is a functional block diagram of the wrapping unit of fig. 2;
    fig. 4A is a perspective view illustrating a state in which a closing cover of a section for capturing the lower yarn of fig. 2 is open:
    fig. 4B is a perspective view illustrating a state in which the closing cover of the catch section of the lower yarn of fig. 2 is closed;
    fig. 5 is a flowchart illustrating a process flow in an inspection mode; and fig. 6 is a schematic view illustrating a schematic configuration of a winding unit according to an alternative embodiment.
    Detailed description of preferred embodiments [0043] An embodiment of the present invention will be described below with reference to the drawings. Identical reference numbers indicate equal components in the description of the drawings and any redundant description will be omitted. The dimensional ratio in the drawings may not necessarily correspond to the dimensional ratio in the description.
    [0044] Firstly, referring to fig. 1, a general configuration of an automatic winder 1 will be described, comprising a winding unit 10 (yarn winding machine) of an embodiment. The terms "upstream" and "downstream" indicate respectively upstream and downstream in a direction of movement of a yarn during the winding of the yarn.
    [0045] As illustrated in fig. 1, the automatic winder 1 comprises, as main components, a plurality of winding units 10 arranged side by side, an automatic doffing device 80 and a control device of the machine 90. The winding unit 10 is a device suitable for winding a yarn Y unwound from a spool for feeding the yarn B into a winding spool WB while translating the yarn Y to produce a package P.
    When the package P is completely wound in each winding unit 10, the automatic doffing device 80 moves to a specific position of the winding unit 10, unloads the fully wound package P from the winding unit 10 and feeds a bobbin of empty winding WB in the winding unit 10.
    The control device of the machine 90 comprises, as main components, a setting section 91 and a display section 92. The setting section 91 allows an operator to enter a predetermined set value or to select a control method suitable for making the setting with respect to each winding unit 10. The display section 92 is configured to be able to display the winding state of the yarn Y in each winding unit 10, the content of a problem that has occurred and similar . The section
    Display CH 710 864 B1 92 can be configured via a touch screen and setting section 91 can be included in display section 92.
    [0048] Subsequently, referring to fig. 2, a description of a configuration of the wrapping unit 10 will be specifically provided. As illustrated in fig. 2, each winding unit 10 comprises, as main components, a main body of units 60, a section for supporting the reel 11, a facilitating device for unwinding the yarn 15, a device for applying tension to the yarn 21, a tension sensor 25 (yarn tension sensing device), a yarn splicing device 31, a lower yarn catching section 33, an upper yarn catching section 37, a yarn monitoring device 41, a winding section 51 and a control section of unit 70.
    [0049] The main body of unit 60 supports the yarn unwinding facilitator 15, the yarn tensioning device 21, the tension sensor 25, the yarn joining device 31, the catch section of the lower yarn 33, the upper yarn catching section 37, the yarn monitoring device 41 and the winding section 51. The main unit body 60 has incorporated in it the unit control section 70, which will be described later.
    The main body of unit 60 comprises a setting section 61 and a display section 63. The setting section 61 allows an operator to enter a predetermined set value or to select an appropriate control method for performing the setting with respect to the winding unit 10. The display section 63 displays the winding state of the yarn Y in the winding unit 10, the content of a problem that has occurred, inspection values acquired in the inspection mode and the like. The display section 63 can be configured via a touch screen and the setting section 61 can be included in the display section 63.
    The support section of the bobbin 11 supports the yarn supply bobbin B, which has been transported by a bobbin transport system (not shown) to a predetermined position.
    [0052] The facilitating device for unwinding the yarn 15 facilitates the unwinding of the yarn Y from the spool for feeding the yarn B by lowering an adjustment element 16 which covers an inner tube of the spool for feeding the yarn B accompanying the unwinding of the yarn Y from the spool for feeding the yarn B. The regulating element 16 is brought into contact with a ballon of the yarn Y formed in an upper part of the spool for feeding the yarn B by the rotation and the centrifugal force of the yarn Y carried out by the yarn feeding coil B in order to check the ballon of yarn Y to an appropriate size. A sensor (not shown) suitable for detecting a unwinding portion of the yarn feeding reel B is arranged near the adjustment element 16. When this sensor detects the lowering of the unwinding portion, the yarn unwinding facilitator 15 lowers the adjustment element 16 by means of an air cylinder (not shown) which, for example, follows the lowering of the unwinding portion.
    The tension application device 21 applies a predetermined tension on the moving yarn Y. The tension application device 21 can be a comb-type tension application device in which movable comb teeth are arranged with respect to teeth of fixed comb. The movable comb teeth are oscillated by a rotary solenoid such that the movable comb teeth are engaged with or released from the fixed comb teeth. It is possible, for example, to adopt a disc-type voltage application device instead of the comb-type voltage application device 21 described above.
    [0054] The tension sensor 25 is arranged between the yarn tensioning device 21 and the yarn joining device 31 and is mounted on the upper surface of a guide plate 23. The tension sensor 25 measures the tension of the yarn in motion Y and transmits a voltage measurement signal to the control section of unit 70.
    The yarn joining device 31 joins a lower yarn coming from the yarn feeding reel B and an upper yarn coming from the bobbin P after the yarn monitoring device 41 has detected a yarn defect and cut the yarn, after a breakage of the yarn has occurred during the unwinding of the yarn from the yarn feeding reel B, and the like. As a splicing device for yarn 31 suitable for joining the upper and lower threads, it is possible to use a device that uses a fluid such as compressed air.
    [0056] A lower yarn catching section 33 (gripping section) adapted to capture a yarn end of the lower yarn and to guide the yarn end in the yarn joining device 31 is arranged under the yarn joining device. 31. The catch section of the lower yarn 33 comprises a tube arm of the lower yarn 34, a suction port of the lower yarn 34A, formed at a distal end of the tube arm of the lower yarn 34, and a closing cover 35 adapted to open / close the suction port of the lower yarn 34A, as illustrated in figs. 4A and 4B.
    The tube arm of the lower yarn 34 is supported by the main body of unit 60 so as to be oscillating with an axis A1 as its center (see Fig. 2). An appropriate negative pressure source is connected to the tube arm of the lower yarn 34. The tube arm of the lower yarn 34 generates a suction flow at the suction port of the lower yarn 34A to suck and capture the yarn end of the lower yarn.
    [0058] As illustrated in fig. 4B, the closing cover 35 is pushed by a spring or the like (not shown) so that a closing section 35A, which is a section opposite to the suction port of the lower yarn
    CH 710 864 B1
    34A, close the suction port of the lower yarn 34A. According to this configuration, the closing cover 35 is normally in a closed state of the suction thread of the lower yarn 34A. In the present embodiment, the yarn Y pulled from the winding section 51 must be firmly grasped in order to inspect the resistance in the inspection mode. Therefore, a spring that has a spring constant that can withstand traction is used.
    [0059] Normally, the suction port of the lower yarn 34A is made of metal, and the closing section 35A is made of resin. In order to firmly grasp the yarn Y pulled from the winding section 51, it is necessary that the spring of the closing section 35A to close the suction port of the lower yarn 34A is made more robust than the conventional technique. Furthermore, it is possible to increase an application tension of the solenoid of the tension application device to the yarn 21 in the case of a low count yarn having a high resistance and the like.
    [0060] As illustrated in fig. 4A, when the tube arm of the lower yarn 34 is positioned at the lowest point, an opening cam 69B acts on a projection 35B formed on the closing cover 35. Consequently, the closing cover 35 is made to swing in the direction in which the suction port of the lower yarn 34A is opened. The opening cam 69B is fixed to the main body of unit 60 through a fixing section 69A. Fig. 4A illustrates a state in which the tube arm of the lower yarn 34 is positioned at the lowest point, but the suction port of the lower yarn 34A can be opened by a similar mechanism also when the tube arm of the lower yarn 34 is positioned in the Highest point. According to this configuration of the catch section of the lower yarn 33, the tube arm of the lower yarn 34 is made to oscillate with the yarn coming from the feeding reel of the yarn B sucked and captured to be grasped (retained), so that the yarn coming from the yarn feeding reel B is delivered to the yarn joining device 31.
    [0061] As illustrated in fig. 2, the upper yarn catching section 37 adapted to capture one yarn end of the upper yarn and to guide the yarn end in the yarn joining device 31 is arranged above the yarn joining device 31. The catch section of the upper yarn 37 comprises a tube arm of the upper yarn 38 and an upper yarn suction port 39 formed at a distal end of the tube arm of the upper yarn 38. The tube arm of the upper yarn 38 is supported by the body main of unit 60 so as to be oscillating with an axis A2 as its center. An appropriate negative pressure source is connected to the tube arm of the upper yarn 38. The tube arm of the upper yarn 38 generates a suction flow at the suction port of the upper yarn 39 to suck and capture the yarn end of the top yarn.
    The yarn monitoring device 41 comprises a head 43 provided with a sensor (not shown) for detecting a thickness (dimension) of the yarn Y and an analyzer 45 for processing a yarn thickness signal coming from the sensor. The yarn monitoring device 41 detects a yarn defect, such as an enlargement, by monitoring the yarn thickness signal from the sensor. A cutting device 47 is arranged near the head 43 to immediately cut the yarn Y when the yarn monitoring device 41 detects the yarn defect.
    [0063] The yarn monitoring device 41 detects the thickness (size) of the yarn continuously for a predetermined length in order to acquire the shape of the spliced portion of the yarn and / or the yarn defect. This means that it is possible to detect the thickness and length (dimension) of the spliced portion of the yarn and / or the yarn defect. Therefore, for example, it is possible to recognize and distinguish a shape in which both ends of the spliced portion of the yarn are as thick as a protuberance and a shape in which the thickness gradually varies from both ends towards the center so that the central portion the spliced portion of the yarn becomes thick.
    [0064] After the yarn Y has been cut with the cutting device 47, the suction port of the upper yarn 39 is oscillated downwards with the upper yarn, which is the end of yarn coming from the bobbin P, sucked from the suction port of the upper yarn 39 of the capture section of the upper yarn 37, so that the yarn end of the upper yarn is delivered to the yarn joining device 31. The suction port of the lower yarn 34A is made to oscillate upwards with the lower yarn, which is the end of yarn coming from the yarn supply bobbin B, sucked by the suction yarn of the lower yarn 34A of the capture section of the lower yarn 33, so that the end yarn of the lower yarn is delivered to the yarn joining device 31. Therefore, the upper yarn and the lower yarn are joined by the device of the splicing of the yarn 31.
    [0065] The winding section 51 comprises a support 52, a contact roller 53, a translating device 55 and a guide plate 56, and is supported by a main body of units 60. The support 52 is adapted to support in a manner removable the winding coil WB. The contact roller 53 is arranged so that it can rotate while creating a contact with the perimeter surface of the winding reel WB or with the perimeter surface of the package P. The translation device 55 translates the yarn Y. An example of the translation device 55 it consists of an arm-type translating device. The guide plate 56 guides the Y yarn positioned upstream in the translation area. A translation fulcrum 57 made of ceramic material is arranged upstream of the guide plate 56. The translation device 55 translates the yarn Y in a direction indicated with an arrow in fig. 2 with the translation fulcrum 57 as its center.
    [0066] The support 52 is supported by the main body of units 60 so that it can oscillate with an axis of oscillation A3 as its center. An increase in the diameter of the yarn layer of the bobbin P associated with the winding of the yarn Y around the winding reel WB can be absorbed by the oscillation of the support 52.
    CH 710 864 B1 [0067] A bobbin drive motor 59 configured by means of a servomotor is fixed to the support 52. The bobbin drive motor 59 rotates the winding spool WB to wind the Y yarn around the winding spool. WB. A drive shaft of the drive motor of the bobbin 59 is coupled to the winding reel WB so as to be relatively non-rotatable when the winding reel WB is supported by the support 52 (the so-called direct rotation configuration).
    [0068] As illustrated in fig. 3, the control section of unit 70 comprises, for example, a CPU, RAM, ROM, I / O port and a communication port. The ROM stores a program to control each section of the winding unit 10. Each component of the winding unit 10 and of the machine control device 90 is connected to the I / O port and the communication port, thus allowing the communication of the control and similar information. Therefore, the control section of unit 70 can control the operation of each section of the winding unit 10. For example, the control section of unit 70 retroactively controls the device for applying tension to the yarn 21 to obtain an optimal tension which does not cause the yarn to break and the like on the basis of a tension value entered by the tension sensor 25.
    [0069] The winding unit 10 configured as described above can enter the inspection mode for each winding unit 10 by means of the operator operation carried out through the setting section 61 arranged in the main body of unit 60. This means that, by means of the operation of the operator carried out through the setting section 61 arranged in the main body of unit 60, an inspection control section 100 in the control section of unit 70 switches from a normal mode, wherein the yarn Y of the supply spool of the yarn B is wound to form the bobbin P, in an inspection mode, in which the size and strength of the spliced portion of the yarn acquired by a acquisition section of size 110 and by a acquisition section of resistance 120 are emitted as inspection values.
    For example, the inspection mode is a mode adopted in the following situations. This means that the inspection method is adopted in the event that it is verified that a replacement of a junction nozzle of the appropriate yarn is made in the yarn joining device 31 and in the case in which it is checked whether the application air pressure of the twist, the length of the splice or the time of application of the twist of the splicing device 31 is appropriately set after the adjustment of the splicing device 31.
    [0071] In the present embodiment, the section for acquiring the resistance 120 comprises a landing section 121 suitable for grasping the yarn Y pulled out of the yarn feeding reel B, a traction section 123 suitable for pulling the yarn Y grasped by the landing section 121 and a resistance measuring section 125 adapted to measure the resistance of the yarn Y between the landing section 121 and the traction section 123.
    [0072] In the present embodiment, the inspection control section 100 operates the yarn monitoring device 41 as the acquisition section of the dimension 110, the capture section of the lower yarn 33 as the landing section 121, the winding section 51 as traction section 123 and voltage sensor 25 as resistance measurement section 125.
    [0073] The inspection control section 100 inspects the spliced portion of the yarn through the flow (inspection method) illustrated in fig. 5. The inspection control section 100 causes the winding section 51 to wind the yarn Y for a predetermined length and causes the yarn monitoring device 41 to acquire the information of the average thickness (size) of the yarn Y (phase of preparation S1). In the preparation step S1, the inspection control section 100 does not operate the cutting device 47 even when a defect is found in the yarn Y. If the information of the thickness of the yarn Y is previously stored in a storage section and the like ( not shown), the preparation step S1 can be omitted.
    Subsequently, the inspection control section 100 causes the cutting device 47 to cut the yarn in movement Y (cutting phase S2). Subsequently, the inspection control section 100 causes the yarn joining device 31 to join the yarn Y cut in the cutting step S2 (joining step S3). Subsequently, the inspection control section 100 causes the winding section 51 to wind the yarn Y (first winding step S4). In the first winding step S4, the yarn Y is wound until the spliced portion of yarn joined in the splicing step of the yarn S3 is passed through the detection section of the yarn monitoring device 41. In this case, the spliced portion of the yarn is not wound in the bobbin R In the first winding phase S4, the yarn Y is wound at a predetermined speed lower than the speed at which the yarn Y of the yarn feeding reel B is wound in the bobbin P (product) (mode normal).
    The inspection control section 100 causes the yarn monitoring device 41 to acquire the thickness of the spliced portion of yarn of the yarn Y wound by the winding section 51 in the first winding phase S4 (acquisition phase of size S5) . Subsequently, the inspection control section 100 causes the yarn monitoring device 41 to acquire the thickness (size) of the yarn continuously for a predetermined length. In this way the shape of the spliced portion of the yarn is acquired. In the inspection mode, the inspection control section 100 uses the yarn monitoring device 41 as the acquisition section of the size 110.
    Subsequently, the inspection control section 100 causes the catching section of the lower yarn 33 to grab the yarn Y (gripping step S6). In the inspection mode, the inspection control section 100 uses the
    CH 710 864 B1 capture section of the lower yarn 33 as a gripping section of the resistance acquisition section. In the gripping step S6, the yarn Y is gripped by the catch section of the lower yarn 33 upstream of the tension sensor 25. Subsequently, the inspection control section 100 causes the winding section 51 to wind the yarn
    Y gripped by the catch section of the lower yarn 33 in the gripping step S6 to pull the yarn Y, thus causing the yarn Y to break (detachment) (second winding step S7). In the second phase of winding S7, the yarn
    Y is wound at a predetermined speed lower than the speed at which the yarn Y of the yarn feeding reel B is wound in the package P (product) (normal mode).
    [0077] Subsequently, the inspection control section 100 causes the tension sensor 25 to acquire the tension at the moment of yarn breakage (detachment) of the yarn Y pulled from the winding section 51 in the second winding step S7 (acquisition phase resistance S8). In the inspection mode, the inspection control section 100 uses the voltage sensor 25 as the resistance measurement section of the resistance acquisition section. In the acquisition phase of the resistance S8, the capture section of the lower yarn 33 is in a state in which the closing section 35A (see fig. 4A) (suction yarn of the lower yarn 34A) is in a position in which the closing section 35A is rotated upwards starting from the lowest point with a predetermined angle (shown in fig. 4B). When the tension sensor 25 is used as a resistance detection section, the amount of distortion generated by the yarn Y at the time of the yarn breakage is converted into a load value, and the resistance of the yarn Y is read back in grams.
    [0078] Subsequently, the inspection control section 100 determines whether the cycle from the cutting phase S2 to the acquisition phase of the resistance S8 is repeated a plurality of times (for example, ten times) (phase S9). When the inspection control section 100 determines that the cycle is not repeated a plurality of times (step S9: No), the process returns to the cutting phase S2, the cycle is repeated until it is performed a plurality of times and the thickness and strength of the spliced portion of the yarn are inspected. When the inspection control section 100 determines that the cycle is repeated a plurality of times (step S9: Yes), the thickness and strength of the spliced portion of the yarn acquired by the series of inspection processes are issued as inspection values in the display section 63 of the main body of unit 60.
    [0079] Subsequently, a description of the operations and effects of the wrapping unit 10 of this embodiment will be provided. In the winding unit 10 of the present embodiment, the inspection control section 100 performs the inspection mode, the thickness and strength of the spliced portion of the yarn are acquired between the support section of the reel 11 and the winding section 51, and such thickness and strength are displayed on display section 63 of the main body of units 60 as inspection values. Therefore, the thickness of the spliced portion of the yarn is issued as an inspection value in the winding unit 10 and, consequently, the accuracy of the inspection can be kept constant with respect to the visual inspection. In addition, the resistance of the spliced portion of the yarn is issued as an inspection value in the winding unit 10 and, consequently, the inspection can be performed easily compared to the case in which the measurement is performed using a measuring instrument.
    In addition, in the winding unit 10 of the present embodiment, when the thickness and strength of the spliced portion of the yarn are inspected, an existing device is used arranged in the winding unit 10 so that it is not necessary to add a new element. This means that, in the winding unit 10 of the present embodiment, the thickness of the spliced portion of the yarn is inspected using the existing yarn monitoring device 41, the yarn is grasped using the catch section of the lower yarn 33, the yarn is pulled using the winding section 51 and the resistance of the yarn at the time of the yarn breakage is measured using the tension sensor 25. Therefore, it is possible to reduce the number of components and simplify the structure.
    In addition, in the winding unit 10 of the present embodiment, the inspection control section 100 repeats a series of cycles to induce the acquisition section of size 110 to acquire the thickness of the spliced portion of the yarn and subsequently to induce the acquisition section of the resistance 120 to acquire the resistance of the spliced portion of the yarn for a plurality of times. Therefore, it is possible to further improve the accuracy of the inspection.
    In the winding unit 10 of the present embodiment, the inspection control section 100 controls the winding section 51 so that the spliced portion of the yarn is positioned between the yarn monitoring device 41 and the yarn section. winding 51 when the resistance of the spliced portion of the yarn is inspected in the inspection mode. Therefore, the resistance of the spliced portion of the yarn can be inspected uniformly during the winding of the yarn Y while preventing the spooling of the spliced portion of the yarn in the bobbin P after inspecting the thickness of the spliced portion of the yarn.
    [0083] In addition, in the winding unit 10 of this embodiment, the inspection control section 100 does not operate the cutting device 47 even when the yarn defect is detected in the inspection mode. Therefore it is possible to reliably inspect both the thickness and the strength of a spliced portion of the yarn.
    [0084] In the winding unit 10 of the present embodiment, the driving shaft of the drive motor of the bobbin 59 has a so-called direct rotation configuration, in which the driving shaft is coupled to the winding reel WB so as to be relatively not rotatable when the winding reel WB is supported by the support 52. Therefore, even the low-count yarn having a relatively high resistance can be stably wound.
    CH 710 864 B1 [0085] An embodiment of the present invention has been described, but the present invention is not limited to the above described embodiment.
    <First alternative embodiment>
    In the automatic winder 1 of the embodiment described above, an example of inspection of the thickness of the spliced portion of the yarn using the existing yarn monitoring device 41 has been described by way of illustration, but it is possible to separately set up an acquisition section of the dedicated size. Similarly, the resistance measurement section, the grip section and the traction section which act as a resistance acquisition section can be arranged as dedicated devices.
    <Second alternative embodiment>
    In the automatic winder 1 of the embodiment described above, an example has been described by way of illustration in which the inspection control section 100 is arranged in the main body of unit 60 and the inspection mode is performed for each winding unit 10 by the operation of an operator through the setting section 61 arranged in the main body of unit 60, but the present invention is not limited to this.
    [0088] For example, as illustrated in fig. 1, the inspection control section 100 can be arranged in the machine control device 90 in the automatic winder 1 comprising a plurality of winding units 10 (yarn winding machines), and the machine control device 90 is capable of controlling the plurality of winding units 10. The inspection control section 100 having this configuration can perform the inspection mode with respect to all the winding units 10 arranged in the automatic winder 1 or with respect to one or to a plurality of selected winding units 10 by means of the operator's operation through the setting section 91 arranged in the machine control device 90. It is possible to select whether to carry out the inspection mode with respect to all the winding units 10 or to carry out the inspection mode with respect to one or to a plurality of selected winding units 10 through the operation of the oper actor on setting section 91.
    In the automatic winder 1 having the above configuration, the inspection mode can be performed simultaneously with respect to a plurality of winding units 10 or the inspection mode can be performed with respect to one or a plurality of selected winding units 10. Therefore even when the automatic winder 1 comprises a plurality of winding units 10, it is possible to effectively inspect the size and strength of the spliced portion of the yarn.
    c Third alternative embodiment>
    [0090] In the embodiment described above, by way of example, the driving shaft of the drive motor of the bobbin 59 has been described with the winding unit 10 having a so-called direct rotation configuration, in which the driving shaft is coupled to the winding reel WB so as to be relatively non-rotatable, but the present invention is not limited to this. For example, as shown in fig. 6, a winding section 251 may comprise a translation cylinder 255 having a translation groove 255A formed on the perimeter surface. The translating cylinder 255 is rotatable by the driving force of a motor 259 with the axis A3 of the motor 259 as the center, and is supported by the main body of units 60. The winding section 251 can be a winding unit 210 having a so-called driven rotation configuration in which the package P follows the rotation of the translating cylinder 255.
    [0091] In the winding unit 210 having the driven rotation configuration, the rotation of the package P can slip with respect to the rotation of the translatory cylinder 255 when a low-count yarn having a relatively high resistance is wound. Therefore, the inspection control section 100 brings the translating cylinder 255 into contact with the surface of the package P with a contact pressure higher than in normal mode, it rotates the translating cylinder 255 at a rotation speed lower than that in normal mode , or rotates the translating cylinder 255 with a driving force higher than that in normal mode in order to avoid such slippage.
    <Fourth alternative embodiment>
    In the embodiment described above, an example of use of the capture section of the lower yarn 33 as a grip section 121 of the acquisition section of the resistance 120 has been described by way of illustration, but the present invention is not limited to this. For example, the inspection control section 100 may operate the yarn tensioning device 21 as the gripping section 121. In such a case, the yarn tensioning device 21 reliably grips the yarn Y so that that the Y yarn does not move, contrary to the normal mode. Specifically, the movable comb is moved further towards the fixed comb from the state in which the tension application device to the yarn 21 grasps the zigzag Y yarn, so that the Y yarn can be placed between the movable comb and the comb fixed.
    In addition, a pre-clearer can be used as a gripping section 121 of the section for acquiring the resistance 120, which is a device arranged upstream of the device for applying tension to the yarn 21 and which is capable of eliminating a portion very thick of the Y yarn, the defect portion unwound of the Y yarn or similar. As a section of
    CH 710 864 B1 gripping 121 of the resistance acquisition section 120, it is possible to use a tangle-free device arranged in the yarn feeding section. The tangle-free device is a device which comprises an element (for example, a brush element) adapted to be brought into contact with the yarn feeding reel B to apply a unwinding resistance in order to prevent the yarn Y from being unwound. excessive measurement when the catch section of the lower yarn 33 sucks the yarn Y of the yarn feeding reel B to unwind the yarn Y from the yarn feeding bobbin B so as to guide the yarn Y in the yarn joining device 31. The device for applying tension to the yarn 21, the pre-clearer and the anti-tangle device are all devices located upstream of the resistance measuring section 125.
    <Other alternative embodiments In the embodiment described above, an example has been described by way of illustration in which the resistance acquisition section 120 measures the breaking strength of the yarn Y in step S8, but the present invention is not limited to this and, for example, it is possible to set a reference value in a voltage measuring range by means of the voltage sensor 25 and it is possible to measure whether the resistance of the yarn Y is greater than or equal to the reference value.
    [0095] In the step of acquiring the size S5 of the embodiment described above, yarn Y in which the winding section 51 is controlled so that the spliced portion of the yarn is positioned between the monitoring device has been described by way of example of the yarn 41 and the winding section 51, but the yarn Y can be fed by the winding bobbin, i.e. the winding bobbin WB can be rotated in the opposite direction after the spliced portion of the yarn is wound around the bobbin of winding WB, so that the spliced portion of the yarn is positioned between the capture section of the lower yarn 33 and the winding section 51.
    [0096] In the embodiment described above, as a joining device of the yarn 31 able to join the upper yarn and the lower yarn, the device that uses a fluid such as compressed air has been described by way of example but it is also possible to use mechanical knotter and similar devices.
    权利要求:
    Claims (17)
    [1]
    claims
    1. Winding machine (10, 210) of a yarn (Y) comprising:
    a support section (11) of a bobbin (B) adapted to support the yarn feeding bobbin (Y);
    a winding section (51, 251) adapted to wind the yarn (Y) of the yarn feeding reel (B) supported by the support section (11) of the bobbin (B);
    a splicing device (31) of the yarn adapted to join the yarn (Y) coming from the support section (11) of the bobbin (B) and a yarn (Y) coming from the winding section (51,251) between the support section ( 11) of the coil (B) and the winding section (51,251);
    a size acquisition section (110) adapted to acquire a size of a spliced portion of the yarn where the yarn (Y) is joined by the splicing device (31) of the yarn (Y);
    a resistance acquisition section (120) adapted to acquire a resistance of the spliced portion of the yarn; and a control section (100) capable of switching between a normal mode, one of which the yarn (Y) of the yarn feeding coil (B) is wound to form a package (P) and an inspection mode wherein the size and strength of the spliced portion of the yarn acquired by the size acquisition section (110) and the resistance acquisition section (120) are issued as inspection values.
    [2]
    Winding machine (10, 210) of a yarn (Y) according to claim 1, wherein in the inspection mode, the control section (100) causes the size acquisition section (110) to acquire the size of the spliced portion of the yarn, and subsequently causes the resistance acquisition section (120) to acquire the resistance of the spliced portion of the yarn.
    [3]
    Winding machine (10, 210) of a yarn (Y) according to claim 2, wherein in the inspection mode, the control section (100) repeats, for a plurality of times, a series of cycles to induce the dimension acquisition section (110) to acquire the dimension of the spliced portion of the yarn, and subsequently induce the resistance acquisition section (120) to acquire the resistance of the spliced portion of the yarn.
    [4]
    Winding machine (10, 210) of a yarn (Y) according to one of claims 1 to 3 further comprising: a yarn tension detection device (25) adapted to measure a tension of the yarn (Y) wound by the winding section (51,251), wherein the resistance acquisition section (120) comprises a gripping section (121) adapted to grasp the yarn (Y) pulled out of the yarn feeding reel (B), a traction section (123) adapted to pull the yarn (Y) gripped by the gripping section (121), and a resistance measuring section (125) adapted to measure a resistance of the yarn (Y) pulled by the traction section (123) between the landing section (121) and traction section (123), and control section (100) operates the yarn tension sensing device (25) as a resistance measuring section (125) in the inspection mode.
    CH 710 864 B1
    [5]
    Winding machine (10, 210) of a yarn (Y) according to claim 4, further comprising a yarn catching section (33) adapted to grasp the yarn (Y) from the yarn feeding reel (B) and delivering the yarn (Y) to the yarn joining device (31) when the yarn (Y) is cut, in which the control section (100) operates the yarn catching section (33) as the landing section (121) in the inspection mode.
    [6]
    Winding machine (10, 210) of a yarn (Y) according to claim 5, wherein the control section (100) controls the winding section (51, 251) so that the spliced portion of the yarn is positioned between the yarn catching section (33) and the pulling section (123) when the strength of the spliced portion of the yarn is inspected in the inspection mode.
    [7]
    Winding machine (10, 210) of a yarn (Y) according to one of claims 1 to 6 further comprising a yarn monitoring device (41) adapted to monitor the presence or absence of a yarn defect ( Y) based on at least the yarn size (Y), wherein the control section (100) operates the yarn monitoring device (41) as a size acquisition section (110) in the inspection mode.
    [8]
    Winding machine (10, 210) of a yarn (Y) according to claim 7, further comprising a cutting device (47) suitable for cutting the yarn (Y) when the defect of the yarn (Y) is detected by the device yarn monitoring device (41), wherein the control section (100) does not operate the cutting device (47) even when the yarn defect (Y) is detected in the inspection mode.
    [9]
    Winding machine (10,210) of a yarn (Y) according to one of claims 1 to 8 further comprising a setting section (61) capable of accepting the execution of the inspection mode imparted by an operator, wherein the control section (100) switches to inspection mode following acceptance of an inspection mode execution command from the setting section (61).
    [10]
    10. Automatic winder (1) comprising:
    a plurality of winding machines (10, 210) of a yarn (Y) according to one of claims 1 to 9; and a machine control device (90) capable of controlling the plurality of yarn winding machines (10, 210), wherein the control sections of said yarn winding machines (10, 210) are represented by a common control section (100) which is arranged on said machine control device (90) of said winder (1).
    [11]
    11. Method for inspecting a spliced portion of yarn, the method being for inspecting a size and strength of a spliced portion of a yarn (Y) using a size acquisition section (110) and a resistance measurement section (125 ) arranged in a yarn winding machine (10, 210) according to one of claims 1 to 9, in the yarn winding machine (10, 210) adapted to wind the yarn (Y) unwound from a yarn feeding reel (B) supported by a coil support section (11) with a winding section (51,251) to produce a bobbin (P), the method comprising:
    a phase of joining the yarn (S3) to join a yarn (Y) coming from the support section of the bobbin (11) and a yarn (Y) coming from the winding section;
    a first winding step (S4) to induce, after the yarn joining step (S3), the winding section (51,251) to wind the yarn (Y) until a spliced portion of the yarn (Y) formed in the joining step of the yarn (S3) is not passed through the size acquisition section (110), the spliced portion of the yarn not being wound in the bobbin (P);
    a dimension acquisition phase (S5) to induce the dimension acquisition section (110) to acquire a dimension of the spliced portion of the yarn (Y) wound in the first winding phase (S4);
    a grasping step (S6) for grasping, after the dimension acquisition step (S5), the yarn (Y) upstream of the resistance measuring section (125) in a direction of movement of the yarn;
    a second winding step (S7) to induce the winding section (51,251) to pull the yarn (Y) by winding the yarn (Y) caught in the gripping step (S6); and a resistance acquisition phase (S8) to induce the resistance measurement section (125) to acquire a resistance of the yarn (Y) pulled in the second winding phase (S7).
    [12]
    Method for inspecting a spliced portion of yarn according to claim 11, wherein the yarn winding machine (10, 21) comprises a cutting device (47) adapted to cut the yarn (Y), the method further comprises a cutting step (S2) to cut the yarn (Y) with the cutting device (47) before the yarn joining step (S3).
    [13]
    Method for inspecting a spliced portion of yarn according to claim 12, wherein the steps from the cutting step (S2) to the step of acquiring the resistance (S8) are performed in a repeated manner.
    [14]
    Method for inspecting a spliced portion of yarn according to claim 13, wherein the size acquisition section (110) monitors the presence or absence of a yarn defect (Y) based on the size of the yarn (Y) , and the resistance measuring section (125) measures a tension of the yarn (Y) wound by the winding section (51,251).
    CH 710 864 B1
    [15]
    Method for inspecting a spliced portion of yarn according to claim 14, wherein the cutting device (47) does not cut the yarn (Y) even when the yarn defect (Y) is detected by the size acquisition section (110 ) between the dimension acquisition phase (S5) and the grasping phase (S6).
    [16]
    Method for inspecting a spliced portion of yarn according to claim 14 or 15, further comprising a preparation step (S1) for acquiring information on the thickness of the yarn (Y) with the size acquisition section (110) before cutting phase (S2), in which in the preparation phase (S1), the winding section (51, 251) wraps the yarn (Y) for a predetermined length and the dimension acquisition section (110) acquires the information the thickness of the yarn (Y) without the cutting device (47) cutting the yarn (Y) even when a defect is found in the yarn (Y).
    [17]
    Method for inspecting a spliced portion of yarn according to one of claims 12 to 16, wherein in the first winding phase (S4) and in the second winding phase (S7), the winding section (51, 251) wraps the yarn (Y) at a predefined speed lower than a winding speed of the yarn (Y) in the production of the package (P).
    CH 710 864 B1

    CH 710 864 B1
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    同族专利:
    公开号 | 公开日
    JP2016169065A|2016-09-23|
    CN105966992B|2020-07-14|
    CH710864A2|2016-09-15|
    DE102016203825A1|2016-09-15|
    CN105966992A|2016-09-28|
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    法律状态:
    2021-10-29| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    JP2015048598A|JP2016169065A|2015-03-11|2015-03-11|Yarn winder, automatic winder, and inspection method of yarn splicing portion|
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