• 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:
    A spinning machine has a spinning device (3) designed to twist a fiber bundle (F) to make a spun yarn (Y), a winding device (6) designed to wind the spun yarn (Y) to form a roll (P) is a first collecting part (23a), which is designed to perform a catching operation for collecting the spun yarn (Y) from the spinning device (3), when the spun yarn (Y) is separated, and a control device, which is used to control the first collecting part (23) 23a) is designed when the first catching part (23a) does not catch the spun yarn (Y) to continue the catching operation from the first catching part (23a).
    公开号:CH706572B1
    申请号:CH01033/13
    申请日:2013-05-30
    公开日:2017-08-31
    发明作者:Toyoda Takahiro；Ito Makoto；Yamada Shuji
    申请人:Murata Machinery Ltd；
    IPC主号:
    专利说明:

    Description Background of the Invention 1. Field of the Invention The present invention relates to a spinning machine. 2. Description of the Related Art A spinning machine having a plurality of spinning units is conventionally known (see, for example, Japanese Unexamined Patent Publication No. 2011-38,225). Each spinning unit has a spinning device designed to produce a spun yarn and a winding device designed to form a roll. The spinning machine has a work truck designed to travel to the relevant spinning unit to perform a yarn joining operation when a yarn is cut in a spinning unit (when the spun yarn is cut or when the spun yarn breaks). The work cart has a twine connecting device designed to connect spun yarn and a guide device designed to guide the spun yarn to the twine connecting device.
    The yarn joining operation performed by the spinning unit and the work car will be briefly described below. When the spun yarn separates in a spinning unit, the rotation of the bobbin rotating in a winding direction is stopped and the bobbin is rotated in an unwinding direction which is the opposite direction of the winding direction. The production of spun yarn by the spinning device is resumed simultaneously or before or after the start of the rotation of the roll in the unwinding direction. Thereafter, the work car catches the spun yarn from the reel and the spun yarn from the spinner with the guide device, and guides the spun yarns to the yarn joining device and connects the separated spun yarn to the yarn joining device.
    The operation of the guide device will be described more specifically. The guide device mainly consists of a first collecting part and a second collecting part. The first catching member moves to a predetermined catching position and catches the spun yarn from the spinning device. The second catching member moves to a predetermined catching position and catches the spun yarn from the winding device. Thereafter, the first catching part and the second catching part move to a yarn joining position, respectively, holding the caught spun yarn, and the spun yarn is fed to the yarn joining device. Thus, the yarn joining device can connect the spun yarn from the spinning device and the spun yarn from the winding device.
    In the conventional spinning machine, when the first catching portion does not catch or guide the spun yarn, the first catching portion is once returned to a standby position, and then the first catching portion is again moved to the catching position to perform catching of the spun yarn. Further, in the conventional spinning machine, when the first catching part does not catch or guide the spun yarn, the second catching part is once returned to a standby position, and the spun yarn fed to the yarn joining device is rewound by the winding device. The second collecting part is moved to the collecting position, and the collection of spun yarn from the second collecting part is performed again. In the conventional spinning machine, the movements in the yarn joining operation are achieved by using a camshaft mechanism, so that a series of movements, once executed, are continued until the end.
    Therefore, in the conventional spinning machine, the series of movements in the yarn joining operation is performed again from the beginning when the first collecting part does not catch or guide the spun yarn, thus increasing the time required for the yarn joining operation. Further, in the conventional spinning machine, the determination of an abnormality can not be performed until the movements of the yarn joining operation are repeated, thereby prolonging the time until the alarm is activated. Further, in the conventional spinning machine, the spun yarn is fed by the traversing device when the spun yarn is fed from the second collecting part to the spinning connecting device and wound by the winding device, so that the collection of spun yarn by the second collecting part is made difficult.
    Summary of the Invention It is an object of the present invention to provide a technique for improving the manufacturing efficiency of a package.
    A spinning machine according to the invention comprises a spinning device designed to twist a fiber bundle for producing a spun yarn, a winding device designed to wind the spun yarn to form a roll, a first collecting part adapted to carry out a catching operation for collecting the spun yarn Spun yarn is designed from the spinning device when the spun yarn is separated, and a control device that is designed to control the first collecting part when the first collecting part does not catch the spun yarn to continue the catching operation of the first collecting part.
    The first catching part is configured to be able to stop at a standby position in which the first catching part is ready while the winding machine is winding the lap, and in a catching position different from the standby position in which the first catching part is spun yarn from the spinning device. The control device is designed to control the first catching part to prevent the first catching part from moving to the standby position when the first catching part does not catch the spun yarn, so that the catching up operation can be continued.
    In a first embodiment, the spinning machine has a yarn connecting device which is designed for connecting separated spun yarn. The first collecting part is configured to guide the collected spun yarn to the yarn joining device. The control device is designed to control the first catching part for performing the catching operation when the first catching part does not guide the spun yarn to the yarn joining device.
    In a second embodiment, the spinning machine has a second collecting part designed to catch spun yarn from the winding device and to guide the spun yarn to the yarn joining device when the spun yarn is cut off. The control device is designed to keep the second catch part in standby until the first catching part has successfully guided the spun yarn to the yarn joining unit.
    In a third embodiment, the spinning machine on a cleaning part, which is designed to carry out the cleaning of the spinning device. The control device is designed to control the cleaning part, such that cleaning is performed while the catching operation is repeated by the first catching part after the first catching part has not caught the spun yarn.
    In a fourth embodiment, the spinning machine has a detecting part designed to detect a number of times that the first collecting part does not catch or guide the spun yarn, and a reporting part that is designed to report when the number of times detected by the detecting part exceeds a preset number of times.
    In a fifth embodiment, the spinning machine on a first detection part, which is designed to detect the capture of the spun yarn from the first collecting part.
    In a sixth embodiment, the spinning machine on a second detection part, which is designed to detect the capture of the spun yarn from the second collecting part.
    In a seventh embodiment, the spinning machine has a drafting system which is designed for stretching the fiber bundle, which is to be spun by the spinning machine, and for feeding the fiber bundle to the spinning device, wherein, if the first collecting device does not catch the spun yarn, the stretching by the drafting system and the production of spun yarn are stopped once by the spinning device, while the catching process is repeated by the first collecting part.
    According to the invention, the catching operation of the spun yarn need not be repeated again from the beginning if the first catching part does not catch the spun yarn, whereby the time required for the spinneret catching operation can be reduced, so that the manufacturing efficiency of the spun yarn is reduced Wickels is improved.
    Further, the distance along which moves the first collecting part can be reduced.
    According to the invention, when the first catching member does not catch the spun yarn, the movements in the yarn splicing operation are not performed again from the front, whereby the time required for the yarn splicing operation can be reduced, thereby improving the manufacturing efficiency of the spool ,
    Further, the problem encountered in the conventional spinning machine is less likely to occur in which the spun yarn was transverse to make it difficult to catch by the second collecting part, whereby the collection of spun yarn could be faulty.
    Further, the probability that the spun yarn is successfully caught by the first collecting part is higher, whereby the manufacturing efficiency of the package can be improved.
    In addition, the situation can be reported quickly to the operator by this receives message via the reporting part.
    In addition, the collection of spun yarn can be detected by the first collecting part.
    In addition, the collection of spun yarn can be detected by the second collecting part.
    Brief Description of the Drawings [0025] FIG.
    Fig. 1 is a view showing a general configuration of a spinning machine;
    Fig. 2 is a view illustrating a structure of a spinning unit and a work car;
    Fig. 3 is a view illustrating an operating condition in which the reel rotates;
    Fig. 4 is a view showing an operation state in which the reel rotates in the reverse direction;
    FIG. 5 is a view illustrating an operation state in which a first catching part and a second catching part respectively catch a spun yarn; FIG.
    Fig. 6 is a view showing an operating state in which the first collecting part and the second collecting part each guide a spun yarn;
    Fig. 7 is a view illustrating an operation state in which the formation of the coil is resumed;
    Fig. 8 is a flow chart illustrating a yarn bonding operation of the spun yarn by the spinning unit;
    Fig. 9 is a flow chart illustrating the yarn bonding operation of the spun yarn by the spinning unit;
    Fig. 10 is a view showing an operational state in which the first catching member does not catch the spun yarn; and
    Fig. 11 is a view illustrating an operating state in which the first collecting part does not catch the spun yarn.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS First, a spinning machine 100 will be briefly described with reference to FIG. A black arrow, which is shown in the drawing, indicates a running direction of the work cart 20. A white arrow, which is shown in the drawing, indicates a running direction of a Ablegewagens 30.
    The spinning machine 100 has a plurality of spinning units 10 on the spinning machine 100, the work vehicle 20, the depositing trolley 30 and the control device 40 on.
    The spinning unit 10 stretches a fiber bundle F and twists the stretched fiber bundle F to produce the spun yarn Y. The spinning unit 10 may form a roll P by winding the spun yarn Y. A detailed configuration of the spinning unit 10 will be described later.
    The work cart 20 may run along the rail R1, which extends in a direction in which the plurality of spinning units 10 are aligned with each other. When the spun Y is separated in a spinning unit 10, the work cart 20 moves to the relevant spinning unit 10 and performs the yarn joining operation. Depending on the number of spinning units 10, a single operating carriage 20 or a plurality of work cars 20 may be present. A detailed configuration of the work cart 20 will also be described later.
    The depositing trolley 30 can run along the rail R2, which extends in the direction in which the plurality of spinning units 10 are aligned with each other. When the reel P reaches a fully wound state in a spinning unit 10, the depositing trolley 30 travels to the relevant spinning unit 10 and disengages the reel P from the spinning unit 10. The depositing trolley 30 can attach a new reel B to the spinning unit 10. Depending on the number of spinning units 10, a single Ablegewagen 30 or more Ablegewagen 30 may be present.
    The control device 40 may control each spinning unit 10 and / or each work cart 20. When the spun yarn Y separates at a spinning unit 10, the control device 40 controls the spinning unit 10 to interrupt the formation of the package P. The control device 40 controls the spinning unit 10 and the work cart 20 to perform the yarn joining operation, and then controls the spinning unit 10 to resume the formation of the package P. The control device 40 has a detection part 401 designed to detect a number of errors in catching and / or guiding the spun yarn Y by the guide device 23, and a notification part 402 that is for reporting an abnormality occurring in the spinning machine 100. is designed.
    Next, a detailed description will be given of the structure of the spinning unit 10 and the work cart 20 with reference to FIG. 2. The black arrows shown in the drawing indicate a feeding direction of the fiber bundle F and the spun yarn Y. A white arrow shown in the drawing indicates a direction of rotation of the coil P.
    First, the spinning unit 10 will be described. The spinning unit 10 has a sliver dispenser 1, a drafting device 2, a spinning device 3, a defect detection device 4, a tension stabilizing device 5 and a winding device 6 along the feeding direction of the fiber bundle F and spun yarn Y.
    The sliver dispenser 1 dispenses the fiber bundle F to the drafting system 2. The sliver dispenser 1 comprises a sliver container 11 and a sliver guide (not shown). The fiber bundle F collected in the sliver container 11 is guided by the sliver guide and fed to the drafting system 2.
    The drafting unit 2 stretches the fiber bundle F to make the thickness of the fiber bundle F uniform. The drafting system 2 has four sets of drafting roller pairs 2a, 2b, 2c and 2d, i. a rear roller pair 2a, a third
    Roller pair 2b, a middle roller pair 2c and a front roller pair 2d along the feed direction of the fiber bundle F. Each pair of draw rollers 2a, 2b, 2c, 2d has a lower roller rotated by a driving mechanism and an upper roller in contact with the roller lower roller and rotates with the lower roller. A strap is passed around the lower roller and the upper roller of the middle roller pair 2c. Since the lower roller and the upper roller rotate while guiding the fiber bundle F therebetween, the roller pairs 2a, 2b, 2c, 2d can feed the fiber bundle F. Therefore, the drafting device 2 can stretch the fiber bundle F with the difference between the rotational speeds of the drafting roller pairs 2a, 2b, 2c, 2d arranged side by side.
    The spinning device 3 generates the spun yarn Y by twisting the fiber bundle F. Specifically, the spinning device 3 generates the spun yarn Y by entangling each fiber of the fiber bundle F with the air flow. The spinning device 3 is arranged downstream of the drafting system 2 along the feed direction of the fiber bundle F. The spinning device 3 can produce the spun yarn Y by means of the correspondingly stretched fiber bundle F.
    Although a detailed description and illustration is omitted, the spinning apparatus 3 comprises a fiber guide member, a fluidized air flow generating nozzle and a hollow guide shaft. The fiber guide member is provided with a needle member for guiding the fiber bundle F supplied from the drafting equipment 2 to a spinning chamber formed in the spinning apparatus 3. The fluidized air jet generating nozzle is disposed at the periphery of a path of the fiber bundle F and generates the fluidized air flow in the spinning chamber. The swirling air flow reverses and swirls the fiber end of the fiber bundle F in the spinning chamber. The hollow guide shaft guides the spun yarn Y from the spinning chamber to the outside of the spinning device 3. The needle element can be omitted and the fiber bundle F can be fed to the spinning chamber with a downstream end of the fiber guiding part.
    The defect detection device 4 is designed to detect a defective portion of the spun yarn Y produced. Specifically, the defect detection device 4 irradiates the spun yarn Y with a light-emitting diode as a light source and detects a reflected light amount from the spun yarn Y. The defect detection device 4 is connected to the control device 40 via an analysis element (not shown). Therefore, the control device 40 can determine the presence or absence of a defective portion based on a signal from the defect detection device 4. A cutting tool 41 for cutting the spun yarn Y is disposed in the vicinity of the defect detection device 4. The "defective portion of the spun yarn Y" includes a case where foreign matter has come between the spun yarn Y except for the anomalies such as a too thick portion of spun yarn Y (thick spot) or too thin a portion (thin spot). The spinning unit 10 can stop the discharge of air to the spinning device 3 and stop the production of the spun yarn Y for cutting the spun yarn Y. In this case, the cutting tool 41 is omitted.
    The tension stabilizing part 5 is designed to maintain and stabilize a tension acting on the spun yarn Y accordingly. The tension stabilizing device 5 has an unwinding element 51 and a roller 52. The unwinding member 51 rotates with the roller 52 when the tension applied to the spun yarn Y is low, and winds the spun yarn Y about the roller 52. The unwinding member 51 rotates independently of the roller 52 when the tension applied to the spun yarn Y moves is high, and unwinds the spun yarn Y wound around the roller 52. Therefore, the tension stabilizing device 5 can maintain and stabilize the tension acting on the spun yarn Y accordingly.
    The winding device 6 winds the spun yarn Y to form the roll P. The winding device 6 has a drive roller 61, a receiving device 62 and a traversing device 63. The drive roller 61 rotates a spool B rotatably supported by the take-up device 62. The traversing device 63 advances the spun Y. The winding device 6 can therefore wrap the spun yarn Y around the bobbin B and at the same time advance the spun yarn Y.
    The following is a description of the work cart 20. The work cart 20 includes a brake device 21, a counter rotating device 22, a guide device 23, and a yarn joining device 24.
    The brake device 21 presses a plate 21a against the reel P to stop the rotation of the reel P (see Fig. 3). The brake device 21 includes the plate 21a that comes in contact with the reel P and a frame 21b for holding the plate 21a.
    The anti-rotation device 22 brings a counter-rotating roller 22a into contact with the reel P to rotate the reel P in the opposite direction (in a direction opposite to the winding direction) (see Fig. 4). The counter-rotating device 22 includes the counter-rotating roller 22a, which is designed to rotate the reel P in reverse, and a frame 22b for supporting the counter-rotating roller 22a.
    The guide device 23 catches the separated spun yarn Y and feeds the spun yarn Y to the yarn joining device 24 (see Figs. 5 and 6). The guide device 23 is constituted by a first catching part 23a designed for catching spun yarn Y from the spinning device 3 and guiding spun yarn Y to the yarn joining device 24, and a second catching part 23b for catching spun yarn Y from the winding device 6 and for guiding the spun yarn Y to the yarn joining device 24 is defined. The operation of the first collecting part 23a and the second collecting part 23b will be described later in detail.
    Specifically, the twine connecting device 24 connects the spun yarn Y from the spinning device 3 and the spun yarn Y from the winding device 6.
    The "separated spun yarn Y" is a term that includes Y spun yarn cut in one case and Y spun yarn in an abnormal draw in another case.
    A description will be given, with reference to FIG. 3 to FIG. 7, of a series of operating conditions, starting from the interruption of the formation of the package P by the spinning unit 10 to the resumption of the formation of the package P by the spinning unit 10 when the defect detection device 4 recognizes the defective portion of spun yarn Y. The black arrows shown in the drawings indicate a direction of movement of each individual element of the spinning unit 10 and the work cart 20. A white arrow shown in the drawing indicates a direction of rotation of the coil P.
    When the defect detection device 4 detects the defective portion of the spun yarn Y, the control device 40 controls the cutting tool 41 to cut the spun yarn Y with the cutting tool 41. One end of the separated spun yarn Y (the spun yarn Y disposed downstream of the cutting tool 41) is wound in the reel P. The other end of the separated spun yarn Y (the spun yarn Y placed upstream of the cutting tool 41) is sucked and held by a suction port (not shown). The work cart 20 immediately moves to the relevant spinning unit 10 when the cutting tool 41 has cut the spun yarn Y.
    The control device 40 then pivots the receiving device 62 to separate the reel P from the drive roller 61 (see Fig. 3). The control device 40 then controls the brake device 21 to bring the plate 21a into contact with the reel P and stop the rotation of the reel P (see Fig. 3).
    The control device 40 then controls the anti-rotation device 22 to rotate the reel P in the opposite direction. The second collecting part 23b can thereby catch the spun yarn Y wound in the reel P. At this time, the control device 40 first pivots the frame 21b to separate the plate 21a from the winding P (see Fig. 4). Thereafter, the control device 40 brings the counter-rotating roller 22a into contact with the reel P to rotate the reel P in the opposite direction (see Fig. 4).
    The control device 40 then controls the guide device 23, and the guide device 23 catches the spun yarn Y. Specifically, the first collecting part 23a (swinging upward) moves from the standby position to a catching position Pa1, and sucks air from the suction port 23am to catch the spun yarn Y spun by the spinning device 3 (see FIG. 5). The second catching part 23b moves (pivots upward) from the standby position to a catching position Pb1, and sucks air from the suction port 23bm to catch the spun yarn Y wound in the reel P (see FIG. 5).
    The control device 40 then controls the guide device 23, and the guide device 23 guides the spun yarn Y to the yarn joining device 24. Specifically, the first catching part 23a (pivots downward) moves from the catching position Pa1 to a yarn joining position Pa2 and holds the caught spun yarn Y to feed the spun yarn Y to the yarn joining device 24 (see Fig. 6). The second catching part 23b moves (swings upward) from the catching position Pb1 to a yarn joining position Pb2 and holds the caught spun yarn Y to guide the spun yarn Y to the yarn joining device 24 (see FIG. 6).
    The control device 40 then controls the yarn joining device 24, and the yarn joining device 24 connects the spun yarn Y from the spinning device 3 and the spun yarn Y from the winding device 6. The yarn splicing device 24 rotates the end of each spun yarn Y and then twists the ends by it overlaps these to join the separated spun Y yarn.
    After completing the yarn joining operation, the control device 40 pivots the frame 22b for separating the counter rotating drum 22a from the winding P (see FIG.7). Thereafter, the control device 40 pivots the take-up device 62 to bring the reel P into contact with the drive roller 61 (see Fig. 7). The spinning unit 10 can then resume the formation of the roll P.
    A case where the first catching part 23a does not catch the spun yarn Y will be described with reference to FIGS. 8 and 10. In Fig. 10, a black arrow indicates the moving direction of the first collecting part 23a, and a white arrow indicates the rotating direction of the roll P.
    At step S101, the control device 40 instructs the second catching part 23b to catch the spun yarn Y which has been wound in the reel P (see Fig. 5).
    At step S102, the control device 40 determines whether the collection of spun yarn Y was successful when a second recognition part 23bs disposed in the second collection part 23b detects the spun yarn Y (step S102: YES). The control device 40 proceeds to step S103 if it is determined that the catching of the spun yarn Y from the second catcher 23b has been successful and goes to step S212 if it is determined that the spun yarn Y has not been caught.
    At step S103, the control device 40 instructs the second catching part 23b to guide the spun yarn Y wound in the reel P (see Fig. 6).
    At step S104, the control device 40 determines that the guiding of the spun yarn Y was successful when the second detecting part 23bs further recognizes the spun yarn Y until the second catching part 23b moves to the yarn bonding position Pb2 (step S104: YES). The control device 40 proceeds to step S105 if it is determined that the passing of the spun yarn Y from the second catcher 23b was successful, and goes to step S212 if it is determined that the spun yarn Y was not guided, at step S105 The control device 40 instructs the first catching part 23a to catch the spun yarn Y from the spinning device 3 (see FIG. 5).
    At step S106, the control device 40 determines whether the collection of spun yarn Y was successful when a first recognition part 23as disposed in the first collecting part 23a recognizes the spun yarn Y (step S106: YES). The control device 40 proceeds to step S107 if it is determined that the catching of the spun yarn Y from the first catcher 23a has been successful, and goes to step S216 if it is determined that the spun yarn Y has not been caught.
    At step S216, the control device 40 performs the cleaning of the spinning device 3. The collection of spun yarn Y by the first collecting part 23a may be more difficult in accumulations of fiber residue and the like in the spinning device 3, and therefore, the cleaning of the spinning device 3 is carried out at step S216. The control device 40 controls an electromagnetic valve (not shown) and blows air to the spinning device 3. The air is ejected from a nozzle 31 (cleaning part) disposed in the vicinity of the spinning device 3. The first catching part 23a is held at the catching position Pa1. The cleaning of the spinning device 3 can be carried out by the fluidized-air flow generating nozzle (cleaning part) of the spinning device 3. Specifically, in the spinning apparatus 3, the hollow guide shaft is moved in a direction away from the fiber guide member to open the spinning chamber. The air is blown from the vortex air flow generation nozzle with respect to an upstream end of the hollow guide shaft.
    After performing the cleaning of the spinning device 3 at step S216, the control device 40 instructs the first catching part 23a to spin the spun yarn Y spun by the spinning device 3 at step S226 (see Fig. 10). Specifically, and because the first catching part 23a is stopped at the catching position Pa1, the control device 40 causes only the suction of air from the suction port 23am.
    At step S236, the control device 40 determines whether the collection of spun yarn Y was successful when the first recognition part 23as disposed in the first collecting part 23a recognizes the spun yarn Y (step S236: YES). The control device 40 proceeds to step S107 if it is determined that the catching of the spun yarn Y from the first catcher 23a has been successful and goes to step S246 if it is determined that the spun yarn Y has not been caught.
    At step S107, the control device 40 instructs the first catching part 23a to guide the spun yarn Y out of the spinning device 3 (see Fig. 6).
    At step S108, the control device 40 determines that the guiding of the spun yarn Y was successful when the first recognizing part 23as further recognizes the spun yarn Y until the first catching part 23a moves to the yarn joining position Pa2 (step S108: YES). The control device 40 proceeds to step S109 if it is determined that the passing of the spun yarn Y from the first catcher 23a has been successful and goes to step S318 if it is determined that the spun yarn Y has not been guided (see FIG. 9).
    At step S109, the control device 40 instructs the yarn joining device 24 to join the separated spun yarn Y, and the yarn joining device 24 performs the yarn splicing operation.
    The control device 40 causes the first catching portion 23a to recapture the spun yarn Y at the catching position Pa1 when the first catching portion 23a has not caught the spun yarn Y (step S106: NO). Since the movements in the yarn joining operation are not performed again from the front, the time required for the yarn joining operation can be reduced, and the manufacturing efficiency of the roll P can be improved.
    The control device 40 proceeds to step S101 if the determination of the number of errors detected by the detection part 401 does not exceed a preset number in step S212 and goes to step S246 if the number of errors exceeds the preset number.
    In the following, an operation state in which the first catching part 23a does not guide the spun yarn Y will be described with reference to FIG. 9 to FIG. In Fig. 11, a black arrow indicates the direction of movement of an element of the work cart 20 and a white arrow indicates the direction of rotation of the reel P.
    At step S318, the control device 40 performs the cleaning of the spinning device 3. The details of the cleaning are the same as in step S216.
    At step S328, the control device 40 instructs the first catching part 23a to catch the spun yarn Y from the spinning device 3 (see Fig. 11). Specifically, the control device 40 instructs the first catching part 23a to move to the catching position Pa1 immediately from a position where the first detecting part 23as does not recognize the spun yarn Y, and to suck in air from the suction port 23am.
    At step S338, the control device 40 determines whether the collection of spun yarn Y has been successful when the first recognition part 23as disposed in the first collection part 23a recognizes the spun yarn Y (step S338: YES). The control device 40 proceeds to step S348 when it is determined that the interception of the spun yarn Y from the first catcher 23a has been successful and proceeds to step S418 when it is determined that the spun yarn Y has not been caught.
    At step S348, the control device 40 controls the first catching part 23a to guide the spun yarn Y out of the spinning device 3 (see Fig. 6).
    At step S358, the control device 40 determines that the guiding of the spun yarn Y was successful when the first recognizing part 23as further recognizes the spun yarn Y until the first catching part 23a moves to the yarn joining position Pa2 (step S358: YES). The control device 40 proceeds to step S109 when it is determined that the passing of the spun yarn Y from the first catcher 23a has been successful (see FIG. 8) and proceeds to step S246 when it is determined that the spun yarn Y is not guided.
    Therefore, the control device 40 causes the first catching part 23a to move promptly to the catching position Pa1 and to catch the spun yarn Y when the first catching part 23a does not guide the spun yarn Y. Since the movements in the yarn joining operation are not performed again from the front, the time required for the yarn joining operation can be reduced, and the manufacturing efficiency of the roll P can be improved.
    The control device 40 proceeds to step S318 if the determination of the number of errors detected by the detection part 401 does not exceed a preset number in step S418, and goes to step S246 if the number of errors exceeds the preset number.
    In the described embodiment, first, the catching operation of the spun yarn Y is performed by the second catching part 23b, and the catching operation of the first catching part 23a is performed only when the guidance of the spun yarn Y by the second catching part 23b was successful. The catching operation and the guidance by the first catching part 23a and by the second catching part 23b can be performed simultaneously, or the catching operation and the guidance by the first catching part 23a can be performed first.
    When the first catching portion 23a can not guide the spun yarn Y to the yarn joining device 24, the first catching portion 23a can once return to an original position corresponding to the standby position, and then again move to the catching position Pa1 downstream of the spinning device 3 is arranged. The first catching part 23a can move to the catching position Pa1 located downstream of the spinning device 3 without returning to the standby position.
    The following is a description of other characteristic points of the spinning machine 100.
    [0080] When it is determined that the feeding of spun yarn Y from the second catching part 23b was successful at step S102, the control device 40 controls the second catching part 23b to hold the caught spun Y yarn. Specifically, the control device 40 instructs the second catching part 23b to continuously suck in the air from the suction port 23bm, so that the second catching part 23a can further hold the spun Y yarn. The second catching part 23b stops at the yarn joining position Pb2.
    When the second catching part 23b was successful in guiding the spun yarn Y (step S102: YES), the control device 40 stops and effects the second catching part 23b at the yarn joining position Pb2 with the spun yarn Y held continuously by the second catching part 23b in that the second collecting part waits until the first collecting part 23a successfully guides the spun yarn Y. Since the movements in the yarn joining operation are not performed again from the front, the time required for the yarn joining operation can be reduced, and the manufacturing efficiency of the roll P can be improved. Further, the problem which existed in the conventional spinning machine in which the spun yarn Y was transverse, thereby making it difficult to catch by the second catching part 23b and failing to catch spinning yarn Y, is less likely to occur.
    The control device 40 is set to activate the alarm at step S246. That is, the control device 40 activates the alarm with the notification part 402 when the collection of the spun yarn Y several times in succession and a predetermined number of times does not take place (eg, twice) and when the spun yarn Y guide is repeated several times and a predetermined number of times Painting (eg twice) does not take place.
    Therefore, the control device 40 can monitor the number of times that the first catching part 23a does not catch or carry the spun yarn Y, and activates the alarm if this number exceeds the preset number. The situation can therefore be reported quickly to the operator and the manufacturing efficiency of the package P can be improved.
    The control device 40 of the spinning machine 100 activates the alarm when the spun yarn Y is not caught or guided two times in succession; however, this number of errors is not limited. Therefore, the alarm can be set to be triggered if the spun yarn Y is not caught or guided three times in succession.
    After activating the alarm, the work cart 20 moves to another spinning unit 10 in which a yarn joining operation is required, and performs the yarn joining operation on the relevant spinning unit 10. In this way, the operating efficiency of the entire spinning machine 100 is improved.
    权利要求:
    Claims (8)
    [1]
    The spinning machine 100 has the spinning device 3 designed to twist the fiber bundle F for producing the spun yarn Y, the winding device 6 designed to wind the spun yarn Y to form the roll P, the first collecting part 23a facing the Performing the catching operation of the spun yarn Y from the spinning device 3 is designed when the spun yarn Y is separated, and the control device 40, which is designed to control the first collecting part 23 a, when the first collecting part 23 a does not catch the spun yarn Y to continue the collection process , on. The first catching part 23a can be stopped at the standby position when the winding device 6 winds the lap P, and at the catching position Pa1 at which the first catching part 23a captures the spinning yarn Y from the spinning device 3 and is different from the standby position , When the first catching part 23a does not catch the spun yarn Y, the control device 40 is designed to control the first catching part 23a to prevent the first catching part 23a from moving to the standby position. The spinning machine 100 has the yarn joining device 24 designed to join the separated spun yarn Y. The first catching part 23 a is configured to guide the caught spun yarn Y to the yarn joining device 24. When the first catching part 23a does not guide the spun yarn Y to the yarn joining device 24, the control device 40 controls the first catching part 23a to perform the catching operation again. The spinning machine 100 has the second catching part 23b designed to catch the spun yarn Y from the winding device 3 and guide the spun yarn Y to the yarn joining device 24 when the spun yarn Y is cut off. When the second catching part 23b has successfully guided the spun yarn Y to the yarn joining device 24, the control device 40 stands by the second catching part 23b until the first catching part 23a successfully guides the spun Y yarn. The spinning machine 100 further includes a cleaning part (nozzle 31, nozzle for generating fluidized air), which is designed to perform the cleaning of the spinning device 3. The control device 40 is designed to control the cleaning part to perform the cleaning while the catching operation of the spun yarn Y is performed again by the first catching part 23a after the first catching part 23a has not caught the spun yarn Y. The spinning machine 100 further includes the detection part 401 designed to detect a number of times that the first catch part 23a does not catch or guide the spun yarn Y, and the notification part 402 designed to report when the number of times detected by the detection part 401 exceeds the preset number. The spinning machine 100 has the first detection part 23as designed to detect the catching of spun yarn Y by the first catch part 23a. The spinning machine 100 has the second detection part 23bs designed to detect the collection of spun yarn Y by the second catch part 23b. The spinning machine 100 further comprises the drafting device 2, which is designed for stretching the fiber bundle F and for feeding the fiber bundle F to the spinning device 3. When the first catcher 23a does not catch the spun yarn Y, the stretching by the drafting unit 2 and the production of spun yarn Y by the spinner 3 are stopped while the catching operation of the first catching portion 23a is repeated. When the spun yarn Y is separated in the spinning unit 10, the rotation of the roll P in the winding direction by the winding device 6 can be stopped and the operation of the drafting system 2 and the operation of the spinning device 3 can be stopped. At the time when the first catching part 23a arrives at the catching position Pa1 located downstream of the spinning device 3, the operation of the drafting device 2 and the operation of the spinning device 3 can be resumed, and the spinning yarn Y can be caught by the first catching part 23a. In this case, the cleaning part may perform the cleaning of the spinning device 3 before the operation of the spinning device 3 is resumed. The cleaning by the cleaning part can also be omitted. When the first catching portion 23a does not catch the spun yarn Y, the operation of the drafting unit 2 and the operation of the spinning device 3 can be stopped, and the first catching portion 23a can be easily brought from the catching position Pa1 toward the standby position. From the time when the first catching part 23a arrives again at the catching position Pa1 located downstream of the spinning device 3, the operation of the drafting device 2 and the operation of the spinning device 3 can be resumed and the spun yarn Y can start from the first catching part 23a be caught. In this case, the cleaning part may perform the cleaning of the spinning device 3 before the operation of the spinning device 3 is resumed. The cleaning by the cleaning part can also be omitted. In the above-described embodiment, the control device 40 controls the spinning units 10, the work cart 20, and the dump carriage 30. However, a control part may be provided for each of the spinning units 10, the work cart 20, and the dump truck 30, and the control apparatus 40 may control several control parts. claims
    A spinning machine comprising: a spinning device (3) designed to twist a fiber bundle (F) to make a spun yarn (Y); a winding device (6) designed to wind the spun yarn (Y) to form a roll (P); a first catching part (23a) designed to perform a catching operation for catching the spun yarn (Y) from the spinning device (3) when the spun yarn (Y) is cut off; wherein the first catching part (23a) for moving between a standby position in which the first catching part (23a) stands ready while the winding device (6) winds the lap (P) and a catching position (Pa1) different from the standby position and in which the first catching part (23a) catches the spun yarn (Y) from the spinning device (3), characterized in that the spinning machine comprises a control device (40) configured to control the first catching part (23a), to prevent the first catching part (23a) from returning to the standby position when the first catching part (23a) does not catch the spun yarn (Y), so that the catching operation can be continued.
    [2]
    A spinning machine according to claim 1, characterized in that the spinning machine further comprises a yarn joining device (24) designed to join the separated spun yarn (Y), the first collecting part (23a) being further adapted to receive the collected spun yarn (23). Y) to the yarn joining device (24), and wherein the control device (40) is configured to control the first catching part (23a) to perform the catching operation again when the spinning yarn (Y) is guided by the first catching part (23). 23a) fails to the yarn joining device (24).
    [3]
    The spinning machine according to claims 1 and 2, further comprising a second catching part (23b) designed to catch the spun yarn (Y) from the winding device (6) and guide the spun yarn (Y) to the yarn joining device (24), when the spun yarn (Y) is severed, the control device (40) being configured to hold the second catching part (23b) in the standby position after successfully guiding the spun yarn (Y) to the yarn joining device (24) until the first catching part (23a) successfully guides the spun yarn (Y) to the yarn joining device (24).
    [4]
    A spinning machine according to any one of claims 1 to 3, further comprising a cleaning part (31) designed to perform cleaning of the spinning device (3), the control device (40) being configured to control the cleaning part (31), that the cleaning is performed during the repetition of the collecting operation of the first collecting part (23a) after the first collecting part (23a) could not catch the spun yarn (Y).
    [5]
    The spinning machine according to any one of claims 1 to 4, further comprising: a detection part (401) designed to detect a number of times that the first catch part (23a) does not catch the spun yarn (Y) or the spun yarn (Y) does not lead to the connection device (24); and a notification part (402) configured to notify when the number of times detected by the detection part (401) exceeds a preset number of times.
    [6]
    The spinning machine according to any one of claims 1 to 5, further comprising a first detection part (23as) designed to detect catching of the spun yarn (Y) by the first catch part (23a).
    [7]
    A spinning machine according to any one of claims 3 to 6, further comprising a second detection part (23bs) designed to detect catching of the spun yarn (Y) by the second catch part (23b).
    [8]
    8. Spinning machine according to one of claims 1 to 7, further comprising a drafting device (2), which is designed for stretching the fiber bundle (F) and for feeding the fiber bundle (F) to the spinning device (3), wherein the control device (40) for stopping the drawing by the drafting device (2) and producing the spun yarn (Y) by the spinning device (3) when the first collecting part (23a) does not catch the spun yarn (Y) while the catching operation is from the first collecting part (23a ) is continued.
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    同族专利:
    公开号 | 公开日
    CN103485009B|2017-07-14|
    JP2013253358A|2013-12-19|
    CH706572A2|2013-12-13|
    CN103485009A|2014-01-01|
    引用文献:
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    JP2019026980A|2017-08-02|2019-02-21|村田機械株式会社|Air spinning machine|
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    法律状态:
    2015-03-31| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: EIGERSTRASSE 2 POSTFACH, 3000 BERN 14 (CH) |
    2017-05-31| PK| Correction|Free format text: BERICHTIGUNG ERFINDER |
    2020-09-30| PFA| Name/firm changed|Owner name: MURATA MACHINERY, LTD., JP Free format text: FORMER OWNER: MURATA MACHINERY, LTD., JP |
    2021-12-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    JP2012131257A|JP2013253358A|2012-06-08|2012-06-08|Spinning machine|
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