JP2013067474A - Yarn winding machine and yarn winding unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn winding machine that eliminates slackening of a yarn generated when a winding is resumed after a yarn splicing operation is finished.SOLUTION: A fine spinning machine includes a winding device 13 winding a yarn into a package 45; a spinning device 9 supplying a spun yarn 10 to the winding device 13; a yarn splicing device 43 performing a yarn splicing operation to splice the spun yarn between the package 45 and the spinning device 9; and a moving means 30. The moving means 30 can move the yarn splicing device 43 between a yarn splicing position and a retreated position, the yarn splicing position being a position located close to a yarn path between the package 45 and the spinning device 9 during a normal winding, and the retreated position being a position located away from the yarn path.

Description

  The present invention mainly relates to a yarn joining device provided in a yarn winding machine.

  A yarn winding machine that winds a yarn around a bobbin to form a package is known. An example of this type of yarn winding machine is a spinning machine disclosed in Patent Document 1. As described in Patent Document 1, this spinning machine includes a spinning device that generates a spun yarn by twisting a fiber bundle, and a winding that forms a package by winding the spun yarn generated by the spinning device onto a bobbin. A take-off device is provided.

  The spinning machine of Patent Document 1 includes a yarn splicing carriage that connects (yields) the yarn on the spinning device side and the yarn on the package side when the spun yarn between the spinning device and the package is in a split state. Yes. The yarn splicing carriage includes a yarn splicing device for connecting the yarn on the spinning device side and the yarn on the package side. The yarn splicing carriage includes a suction pipe that captures the yarn on the spinning device side and guides it to the yarn splicing device, and a suction mouth that captures the yarn on the package side and guides it to the yarn splicing device.

JP 2010-77576 A

  The yarn splicing device as described above is arranged at a position away from the yarn path (yarn traveling path) during normal winding so as not to interfere with the yarn wound around the package. For example, in Patent Document 1, as shown in FIG. 2, the yarn joining device is disposed at a position deeper on the back side of the device (right side in FIG. 2) than the normal yarn path. Since the yarn is guided to the yarn joining device in the deep position and the yarn joining operation is performed, the yarn path at the time of the yarn joining operation is bent more than the yarn path at the time of normal winding.

  Since the yarn path is bent in this way, the spun yarn between the spinning device and the package is longer than that during normal winding during the yarn splicing operation. For this reason, when rewinding by the winding device is resumed after the yarn splicing operation is finished, the spun yarn that has become longer becomes slack. As a result, the yarn may be wound around the package while being slackened or in a crimped state.

  Further, when the yarn is slack in this way, the slack yarn may be caught by surrounding members, which may cause a problem. For example, in the spinning machine described in Patent Document 1, a rotating slack eliminating roller is provided between the spinning device and the winding device. If the slack of the yarn occurs when rewinding, the yarn may get entangled with the rotating slack eliminating roller. Moreover, the winding device of the spinning machine disclosed in Patent Document 1 includes a traverse guide that is driven to reciprocate. If slack in the yarn occurs when rewinding is resumed, the slack yarn may be caught by the traverse guide and the yarn may break.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a yarn winding machine that eliminates the slack of the yarn that occurs when rewinding after the end of yarn splicing.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a yarn winding machine having the following configuration is provided. That is, the yarn winding machine includes a winding unit that winds a yarn around a package, a yarn supplying unit that supplies the yarn to the winding unit, and a yarn that joins the yarn between the package and the yarn supplying unit. A relay device and a moving means. The moving means is capable of moving the yarn joining device to an approach position that is close to the yarn path between the package and the yarn supplying unit during normal winding and a spaced position that is separated from the yarn path. To do.

  As described above, by configuring the yarn joining device to be movable with respect to the yarn path, the yarn joining device can be brought close to the yarn path only when necessary. Thus, the yarn joining device can be retracted so that the yarn joining device does not interfere with the yarn path during normal winding. Further, when the yarn joining is necessary, the yarn can be introduced into the yarn joining device by bringing the yarn joining device closer to the yarn path. Thus, since the yarn joining device itself can approach the yarn path, it is not necessary to largely bend the yarn path in order to introduce the yarn into the yarn joining device. As a result of the small bending of the yarn, it is possible to prevent the yarn from sagging. Accordingly, since the yarn can be prevented from being wound around the package while being slack, the quality of the package manufactured by the yarn winding machine can be improved. Further, it is possible to prevent the slack yarn from being caught on the surrounding members and causing a problem.

  The yarn winding machine is preferably configured as follows. That is, the yarn joining device includes an untwisting portion for untwisting the yarn end on the package side and the yarn end on the yarn feeding portion side, and a twisting portion for twisting the untwisted yarn ends together. At least. The moving means moves at least the untwisting portion and the twisting portion to an approach position approaching the yarn path and a separation position spaced from the yarn path.

  Thus, since the untwisted part and the twisted part can approach the yarn path, the untwisting and twisting can be performed in the vicinity of the yarn path. As a result, yarn splicing can be performed without greatly bending the yarn from the yarn path during normal winding.

  The yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a yarn catching portion that catches the yarn on the package side and the yarn on the yarn feeding portion side when the yarn between the package and the yarn feeding portion is in a divided state. Prepare. The moving means causes the yarn joining device to stand by at the separated position during normal winding and to advance to the approach position during yarn joining. The yarn catching section guides the captured yarn to a position where it can be introduced into the yarn joining device that has advanced to the approach position.

  Accordingly, the yarn can be introduced into the yarn joining device that has advanced to the approach position, and the yarn joining by the yarn joining device can be performed.

  The yarn winding machine is preferably configured as follows. That is, the yarn catching portion is configured to guide the yarn by rotating in a state where the yarn is caught. The moving means starts the advancement of the yarn joining device from the separated position to the approach position after the yarn guide by the yarn catcher is completed.

  That is, when the yarn catching portion is rotated, by retracting the yarn joining device at a position separated from the yarn path, it is possible to prevent the rotating yarn catching portion from interfering with the yarn joining device. In addition, since the yarn joining device can be retracted to avoid interference with the yarn catching portion, the flexibility of the layout of the yarn catching portion is improved.

  The yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a plurality of yarn winding units and a yarn joining cart. The yarn winding unit includes the yarn supplying unit and the winding unit. The yarn joining cart includes the yarn joining device, is capable of traveling between the plurality of yarn winding units, and stops in the vicinity of the yarn winding unit in which the yarn is in a divided state. On the other hand, the yarn joining is performed by the yarn joining device. The moving means waits the yarn joining device at the separation position at least when the yarn joining cart travels.

  As described above, since the yarn joining cart travels with the yarn joining device retracted to a position separated from the yarn path, the yarn joining device comes into contact with the yarn wound by each yarn winding unit. Can be prevented.

  In the above-described yarn winding machine, it is preferable that the moving unit linearly moves the yarn joining device in a direction substantially orthogonal to a yarn path between the package and the yarn supplying unit during normal winding.

  Thus, by moving the yarn joining device so as to be orthogonal to the yarn path, the distance for moving the yarn joining device relative to the yarn path can be shortened.

  The yarn winding machine is preferably configured as follows. That is, the yarn splicing device further includes a clamp portion that holds the yarn at the time of the splicing, and a drive source for the clamp portion. The moving means moves the clamp part and the drive source to an operating position approaching the yarn path and a non-operating position spaced from the yarn path.

  Thus, by providing the yarn joining device with the clamp portion and the drive source, the yarn joining device can be moved relative to the yarn path to perform the yarn joining.

  The yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a seam monitoring device that inspects the quality of the seam formed by the yarn splicing in the yarn splicing device. The moving means moves the joint monitoring device and the yarn joining device simultaneously.

  Accordingly, the seam monitoring device can be moved in the direction approaching the yarn path, and the seam monitoring device can monitor the yarn seam. On the other hand, when the seam inspection by the seam monitoring device is not necessary, the seam monitoring device can be retracted to a position away from the yarn path, so that the seam monitoring device can be prevented from interfering with the yarn path. . Further, according to the configuration of the present invention, it is possible to prevent the slack of the yarn at the time of yarn joining, so that the inspection accuracy of the seam in the seam monitoring device can be improved.

  The yarn winding machine is preferably configured as follows. That is, the moving means includes a rail and a movement drive source. The rail guides the yarn joining device between the approach position and the separation position. The moving drive source drives the yarn joining device in a direction along the rail.

  Thus, by guiding the yarn joining device with the rail, the yarn joining device can be moved along an accurate path along the direction approaching or separating from the yarn path.

  The yarn winding machine preferably includes a stopper mechanism that defines an end of a range in which the yarn joining device can move in a direction approaching the yarn path.

  Accordingly, it is possible to prevent the yarn joining device from being too close to the yarn path at the time of yarn joining, and to perform the yarn joining while appropriately maintaining the positional relationship between the yarn joining device and the yarn path.

  The yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a yarn storage device that is disposed between the yarn supply unit and the winding unit and that temporarily stores the yarn by winding the yarn around an outer periphery of a rotating yarn storage roller. The yarn joining device performs the yarn joining between the yarn accumulating device and the winding unit in the traveling direction of the yarn.

  That is, according to the configuration of the present invention, it is possible to prevent the slack of the yarn at the time of piecing, and thus it is possible to prevent the yarn from being entangled with the rotating yarn accumulating roller. Therefore, the yarn can be properly stored by the yarn storage device.

  The yarn winding machine preferably includes a traverse device that traverses the yarn wound around the package by a reciprocating traverse guide.

  That is, according to the configuration of the present invention, it is possible to prevent the slack of the yarn at the time of splicing, so that it is possible to prevent the slack of the yarn due to the slack on the reciprocating traverse guide and the occurrence of yarn breakage. Therefore, the traverse device can appropriately traverse the yarn.

  According to another aspect of the present invention, a yarn winding unit having the following configuration is provided. That is, the yarn winding unit includes a winding unit that winds a yarn around a package, a yarn supplying unit that supplies the yarn to the winding unit, and a yarn that joins the yarn between the package and the yarn supplying unit. A relay device and a moving means. The moving means is capable of moving the yarn joining device to an approach position that is close to the yarn path between the package and the yarn supplying unit during normal winding and a spaced position that is separated from the yarn path. To do.

  As described above, by configuring the yarn joining device to be movable with respect to the yarn path, the yarn joining device can be brought close to the yarn path only when necessary. Thus, the yarn joining device can be retracted so that the yarn joining device does not interfere with the yarn path during normal winding. Further, when the yarn joining is necessary, the yarn can be introduced into the yarn joining device by bringing the yarn joining device closer to the yarn path. Thus, since the yarn joining device itself can approach the yarn path, it is not necessary to largely bend the yarn path in order to introduce the yarn into the yarn joining device. As a result of the small bending of the yarn in this way, it is possible to prevent the yarn from sagging. Accordingly, it is possible to prevent the slack portion and the crimped portion of the yarn from entering the package, so that the quality of the package manufactured by the yarn winding unit can be improved. Further, it is possible to prevent the slack yarn from being caught on the surrounding members and causing a problem.

1 is a front view showing an overall configuration of a spinning machine according to an embodiment of the present invention. The side view of a spinning unit and a yarn splicing cart. Sectional drawing of a spinning apparatus. The side view which shows a mode that the thread breakage generate | occur | produced in the spinning unit. The side view which shows a mode that the spun yarn is suction-captured by the thread | yarn capture part of a yarn splicing cart. The side view which shows a mode that the spun yarn was guided in the thread | yarn capture part of a yarn splicing cart. The side view which shows a mode that the yarn joining apparatus was advanced to the yarn joining position. Side surface sectional drawing of the yarn splicing apparatus when a thread | yarn is clamped by the clamp part. Side surface sectional drawing of the yarn splicing apparatus which shows a mode that a yarn end is untwisted. Side surface sectional drawing of the yarn splicing apparatus which shows a mode that yarn ends are twisted together. The side view which shows a mode immediately after resuming winding of a spun yarn after the end of yarn splicing. The side surface sectional view of the yarn splicing device which shows a mode that a seam passes a seam monitor.

  Next, a spinning machine as a yarn winding machine according to an embodiment of the present invention will be described with reference to the drawings. A fine spinning machine (spinning machine) 1 shown in FIG. 1 includes a large number of spinning units (yarn winding units) 2, a yarn splicing carriage 3, a blower box 80, and a prime mover box 5.

  In the blower box 80, a negative pressure source for supplying a negative pressure to each spinning unit 2 is disposed. In the prime mover box 5, a common drive source is arranged for each spinning unit 2.

  As shown in FIG. 2, each spinning unit 2 includes a draft device 7, a spinning device (yarn feeding unit) 9, a yarn accumulating device 12, and a winding device (winding device) arranged in order from upstream to downstream. And a capture section) 13 as main components. Each spinning unit 2 produces the spun yarn 10 by spinning the fiber bundle 8 sent from the draft device 7 by the spinning device 9, and winds the spun yarn 10 around the bobbin 48 by the winding device 13. The bobbin 48 around which the spun yarn 10 is wound is referred to as a package 45. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the fiber bundle 8 and the spun yarn 10 during normal winding. Also, during normal winding, the spun yarn 10 between the spinning device 9 and the winding device 13 is in a continuous state, and the package 45 is driven to rotate at a substantially constant peripheral speed so that the spun yarn 10 is substantially The state where it is wound at a constant speed shall be said.

  The draft device 7 is provided in the vicinity of the upper end of the frame 6 provided in the spinning machine 1. The draft device 7 includes four draft rollers: a back roller 16, a third roller 17, a middle roller 19 on which a rubber apron belt 18 is mounted, and a front roller 20 in order from the upstream side. Each draft roller is rotationally driven at a predetermined rotational speed. The draft device 7 has opposing rollers arranged to face each draft roller. The draft device 7 stretches the sliver 15 which is a raw material of the fiber bundle 8 between a rotating draft roller and a counter roller facing the sliver 15 to a predetermined width (draft). And a fiber bundle 8.

  A spinning device 9 is disposed immediately downstream of the front roller 20. The fiber bundle 8 drafted by the draft device 7 is supplied to the spinning device 9. The spinning device 9 twists the fiber bundle 8 supplied from the draft device 7 to generate the spun yarn 10. The spun yarn 10 generated by the spinning device 9 is wound up by a winding device 13 described later. Therefore, it can be said that the spinning device 9 is a yarn supplying unit that supplies the spun yarn 10 to the winding device 13.

  In the spinning machine 1 of the present embodiment, a pneumatic apparatus that twists the fiber bundle 8 using a swirling airflow is adopted as the spinning device 9. As shown in FIG. 3, the spinning device 9 mainly includes a nozzle block 35, a hollow guide shaft body 23, and a fiber guide portion 22.

  A spinning chamber 26 is formed between the nozzle block 35 and the hollow guide shaft body 23. The nozzle block 35 is formed with an air ejection nozzle 27 that ejects air into the spinning chamber 26. The fiber guide portion 22 is formed with an introduction port 21 for introducing the fiber bundle 8 into the spinning chamber 26. The air ejection nozzle 27 is configured to eject air into the spinning chamber 26 and generate a swirling airflow.

  With this configuration, the fiber bundle 8 supplied from the draft device 7 is guided into the spinning chamber 26 by the fiber guide portion 22 having the introduction port 21. In the spinning chamber 26, the fiber bundle 8 is swung around the hollow guide shaft body 23 by the swirling airflow, and thereby twisted to become the spun yarn 10. The spun yarn 10 to which the twist is applied passes through a yarn passage 29 formed at the center of the hollow guide shaft 23 and is sent out of the spinning device 9 from a downstream yarn outlet (not shown).

  The introduction port 21 is provided with a needle-shaped guide needle 22a with its tip directed toward the spinning chamber 26. The fiber bundle 8 introduced from the introduction port 21 is guided into the spinning chamber 26 so as to be wound around the guide needle 22a. Thereby, the state of the fiber bundle 8 introduced into the spinning chamber 26 can be stabilized. Further, since the fiber bundle 8 is guided so as to be wound around the guide needle 22 a in this way, even if twist is added to the fiber in the spinning chamber 26, the twist propagates upstream from the fiber guide portion 22. Is prevented. Thereby, the twist by the spinning device 9 can be prevented from affecting the draft device 7. However, the guide needle 22a may be omitted, and the downstream end of the fiber guide portion 22 may serve as the guide needle 22a.

  As shown in FIG. 2, a winding device 13 is disposed on the downstream side of the spinning device 9. The winding device 13 includes a cradle arm 71, a winding drum 72, and a traverse device 75.

  The winding drum 72 is driven to rotate at a constant rotational speed in one direction. The cradle arm 71 can rotatably support a bobbin 48 for winding the spun yarn 10. The cradle arm 71 is supported so as to be swingable around the support shaft 73. The cradle arm 71 swings around the support shaft 73 in a state where the bobbin 48 (or the package 45 formed by winding the spun yarn 10 around the bobbin 48) is supported, so that the outer periphery of the bobbin 48 (or the package 45). Can be brought into contact with or separated from the take-up drum 72. By bringing the outer periphery of the bobbin 48 (or package 45) into contact with the winding drum 72 that is rotationally driven, the bobbin 48 (or package 45) is driven to rotate in one direction, and the bobbin 48 (or package). 45), the spun yarn 10 can be wound up. In the following description, the direction in which the winding drum 72 rotates the package 45 is referred to as “winding direction”. The winding drum 72 provided in the winding device 13 of each spinning unit 2 is configured to be rotationally driven all at once by a common driving source (not shown) in the plurality of spinning units 2. This drive source is provided in the prime mover box 5. Thereby, in the plurality of spinning units 2, the packages 45 can be simultaneously rotated at the same peripheral speed, and the spun yarns 10 can be wound all at once.

  The traverse device 75 includes a traverse guide 76 that can be engaged with the spun yarn 10. The traverse guide 76 is configured to reciprocate in a direction parallel to the axial direction of the take-up drum 72 by a driving means (not shown). This driving means is provided in the prime mover box 5. With this configuration, the traverse guide 76 engaged with the spun yarn 10 is reciprocated while the take-up drum 72 is driven to rotate, so that the spun yarn 10 is wound around the package 45 while traversing. It has become.

  A yarn storage device 12 is provided between the spinning device 9 and the winding device 13. As shown in FIG. 2, the yarn storage device 12 includes a yarn storage roller 14 and an electric motor 25 that rotationally drives the yarn storage roller 14.

  The yarn accumulating roller 14 is configured so that a certain amount of spun yarn 10 can be wound around the outer peripheral surface and temporarily accumulated. When the spun yarn 10 is wound around the outer peripheral surface of the yarn accumulating roller 14, the yarn accumulating roller 14 is rotated at a predetermined rotation speed, whereby the spun yarn 10 is pulled out from the spinning device 9 at a predetermined speed and conveyed downstream. can do. Further, since the yarn storage device 12 is configured to temporarily store the spun yarn 10 on the outer periphery of the yarn storage roller 14, it functions as a kind of buffer between the spinning device 9 and the winding device 13. To do. Thereby, it is possible to eliminate a problem (for example, slack in the spun yarn 10) when the spinning speed in the spinning device 9 and the winding speed in the winding device 13 do not match for some reason.

  A yarn quality measuring device 59 is provided at a position between the spinning device 9 and the yarn storage device 12. The spun yarn 10 spun by the spinning device 9 passes through the yarn quality measuring device 59 before being wound by the yarn accumulating device 12. The yarn quality measuring device 59 is configured to monitor the thickness of the traveling spun yarn 10 using a capacitance type sensor (not shown). The yarn quality measuring device 59 is configured to transmit a yarn defect detection signal to a unit controller (not shown) when a yarn defect of the spun yarn 10 (a portion where the thickness of the spun yarn 10 is abnormal) is detected. Yes. The yarn quality measuring device 59 is not limited to the capacitance type sensor, and may be configured to monitor the thickness of the spun yarn 10 with a light transmission type sensor, for example. Further, the yarn quality measuring device 59 may be configured to detect foreign matters contained in the spun yarn 10 as yarn defects.

  In the vicinity of the yarn quality measuring device 59, a cutter (not shown) for cutting the spun yarn 10 immediately when the yarn quality measuring device 59 detects a yarn defect of the spun yarn 10 is arranged. . The spinning unit 2 may cut the spun yarn 10 by stopping the supply of air to the spinning device 9 and interrupting the generation of the spun yarn 10 instead of the cutter.

  As shown in FIG. 1, a yarn joining cart traveling rail 41 is disposed on the frame 6 of the spinning machine 1 along the direction in which the spinning units 2 are arranged. The yarn splicing cart 3 is configured to be able to travel on the yarn splicing cart traveling rail 41. Thereby, the yarn splicing cart 3 can travel between the plurality of spinning units 2.

  As shown in FIGS. 1 and 2, the yarn joining cart 3 includes a yarn joining device 43, a yarn catching section (a suction pipe 44 and a suction mouse 46), a joint monitor (a joint monitoring device) 47, and a reverse drive mechanism 49. And a moving means 30. Further, the yarn splicing cart 3 includes a cart control unit (not shown) for controlling each component of the yarn splicing cart 3.

  Each of the suction pipe 44 and the suction mouth 46 is configured to be rotatable in the vertical direction about an axis. The suction pipe 44 is configured to suck and capture the spun yarn 10 delivered from the spinning device 9 by generating a suction air flow at its tip (see FIG. 5). The suction mouth 46 is configured to suck and capture the spun yarn 10 from the package 45 supported by the winding device 13 by generating a suction air flow at its tip (see FIG. 5). Further, the suction pipe 44 and the suction mouth 46 rotate in a state where the spun yarn 10 is sucked and captured, so that the spun yarn 10 faces the front side (left side in FIG. 6) of the yarn splicing device 43. (State of FIG. 6). The operations of the suction pipe 44 and the suction mouse 46 are controlled by the cart control unit.

  The yarn joining device 43 can join (join) the spun yarn 10 on the spinning device 9 side guided by the suction pipe 44 and the spun yarn 10 on the package 45 side guided by the suction mouth 46. It is configured. The yarn splicing device 43 is configured as a splicer device that forms a seam by twisting yarn ends with a swirling air flow. However, the configuration of the yarn joining device 43 is not limited to this, and may be, for example, a mechanical knotter. The formation of the seam by the yarn joining device 43 is controlled by the carriage control unit. The yarn splicing device 43 is located between the winding device 13 and the yarn accumulating device 12 in the traveling direction of the spun yarn 10 when the yarn splicing cart 3 stops at the spinning unit 2.

  The moving means 30 is configured to be able to move the yarn joining device 43 in a direction approaching or separating from the yarn path during normal winding (the traveling path of the spun yarn 10, the vertical direction in FIG. 2). ing. The yarn joining device 43 performs the yarn joining operation at a position close to the yarn path during normal winding (for example, the position shown in FIG. 7). The position of the yarn joining device 43 at this time is referred to as a “yarn joining position” (or an approach position). When the yarn joining operation is not performed, the yarn joining device 43 is retracted to a position (for example, the position shown in FIG. 2) that is separated from the yarn path during normal winding. The position of the yarn joining device 43 at this time is referred to as a “retracted position” (or a separated position).

  The moving means 30 includes a rail 37 and an air cylinder (moving drive source) 38. The rail 37 is provided on the carriage body of the yarn splicing carriage 3. The rail 37 is formed in an elongated shape in a straight line, and the longitudinal direction thereof is along a direction that is substantially orthogonal to the yarn path during normal winding (the front-rear direction of the spinning unit 2, the left-right direction in FIG. 2). It is arranged. On the other hand, the yarn joining device 43 is attached to the support bracket 36. The support bracket 36 is supported by a rail 37 and is configured to be movable along the longitudinal direction of the rail 37. Accordingly, the yarn joining device 43 attached to the support bracket 36 is movable in a direction substantially orthogonal to the yarn path during normal winding.

  The air cylinder 38 is a moving drive source for driving the yarn joining device 43 along the rail 37. One end of the air cylinder 38 is attached to the carriage body of the yarn splicing carriage 3, and the other end is attached to the support bracket 36. By extending and contracting the air cylinder 38, the yarn joining device 43 can be linearly moved in the direction along the rail 37 (direction orthogonal to the yarn path during normal winding). The expansion / contraction operation of the air cylinder 38 is controlled by the cart control unit.

  Next, the configuration of the yarn joining device 43 will be described in detail with reference to FIG. As shown in FIG. 10, the yarn joining device 43 includes a yarn joining nozzle 94, a clamp portion 97, a yarn path regulating member (yarn shifting lever 96 and yarn holding lever 98), a cutter 92, an untwisting pipe 82, and the like. Are provided as main components.

  The yarn joining nozzle (twisting portion) 94 is disposed on the front side of the main body of the yarn joining device 43. The yarn joining nozzle 94 is formed with a yarn joining hole 90 through which the spun yarn 10 can pass. An unillustrated jet outlet for jetting compressed air is formed inside the yarn splicing hole 90. The yarn splicing nozzle 94 is configured to generate a swirling airflow inside the yarn splicing hole 90 by ejecting compressed air from the spout into the yarn splicing hole 90.

  The yarn splicing device 43 has two untwisting pipes (untwisting portions) 82. The untwisting pipe 82 is formed in an elongated cylindrical shape, and is arranged in parallel with each other with its longitudinal direction directed in the front-rear direction of the yarn splicing device 43. The two untwisting pipes 82 are arranged side by side in a direction substantially parallel to the yarn traveling direction, and each has one end opened to the front of the yarn splicing device 43. Each untwisted pipe 82 is formed with an air ejection hole for generating an air flow toward the back side (opposite to the yarn path) by ejecting compressed air inside the untwisted pipe 82. ing.

  The yarn joining nozzle 94 and the untwisting pipe 82 are both fixedly provided on the main body of the yarn joining device 43. Therefore, when the moving means 30 moves the yarn joining device 43, the yarn joining nozzle 94 and the untwisting pipe 82 move integrally with the main body of the yarn joining device 43.

  The yarn path regulating members (yarn shifting lever 96 and yarn holding lever 98) are lever-like members that are rotatably provided on the main body of the yarn joining device 43. However, in FIGS. 8 to 10 and FIG. 12, only the cross sections of the yarn feeding lever 96 and the yarn holding lever 98 are shown. The yarn shifting lever 96 and the yarn holding lever 98 are arranged so that the yarn path of the spun yarn 10 can be regulated by contacting the spun yarn 10. A state in which the yarn path is regulated by the yarn shifting lever 96 and the yarn holding lever 98 is shown in FIG. Further, the yarn shifting lever 96 and the yarn holding lever 98 are configured to be able to rotate to a position where they do not contact the spun yarn 10. As a result, the spun yarn 10 regulated by the yarn shifting lever 96 and the yarn holding lever 98 can be opened.

  One clamp portion 97 is provided above and below the yarn joining nozzle 94 in the yarn traveling direction. The clamp part 97 is configured to be openable and closable so that the spun yarn 10 can be gripped in a closed state. One cutter 92 is provided above and below the yarn joining nozzle 94 in the yarn traveling direction. The cutter 92 is configured so that the spun yarn 10 can be cut.

  The yarn joining device 43 is provided with a cam mechanism (not shown) for rotating the yarn shifting lever 96 and the yarn holding lever 98, opening and closing the clamp portion 97, and cutting operation by the cutter 92. Further, the yarn joining device 43 has an electric motor 60 that is a drive source of the cam mechanism. By appropriately controlling the operation of the electric motor 60, the spun yarn 10 can be gripped and cut, and the yarn path can be regulated at an appropriate timing. The operation of the electric motor 60 is controlled by the cart controller. As shown in FIG. 2 and the like, the electric motor 60 is disposed in the vicinity of the main body of the yarn joining device 43 and is fixed to the main body of the yarn joining device 43. Therefore, when the moving means 30 moves the yarn joining device 43, the electric motor 60, the cam mechanism, and the members driven by the cam mechanism (yarn shifting lever 96, yarn holding lever 98, clamp portion 97, and The cutter 92) moves integrally. Thereby, the electric motor 60, the clamp part 97, etc. can be moved between the operation position which is made to approach the yarn path of the spun yarn 10 and is operated, and the non-operation position which is separated from the yarn path.

  Here, it is assumed that the electric motor 60 that is the drive source of the cam mechanism is provided on the cart body side of the yarn joining cart 3 separately from the yarn joining device 43. In this case, if the yarn joining device 43 is moved, the positional relationship between the electric motor 60 and the cam mechanism changes, so that it is difficult to configure a drive transmission path from the electric motor 60 to the cam mechanism. It is expected that. In this regard, the configuration of the present embodiment is a configuration in which the yarn joining device 43 itself has the electric motor 60, and the electric motor 60, the cam mechanism, and the member driven by the cam mechanism move integrally. For this reason, the structure of moving the yarn joining device 43 can be easily realized.

  A seam monitor 47 for measuring the quality of the spun yarn 10 spliced by the yarn splicing device 43 is disposed immediately downstream of the yarn splicing device 43. In the present embodiment, the seam monitor 47 is configured to monitor the thickness of the seam formed by the yarn splicing device 43 by a capacitive sensor. However, the configuration of the joint monitor 47 is not limited to this, and the thickness of the joint may be monitored by a light transmission type sensor, for example. Information detected by the joint monitor 47 is transmitted to the cart control unit. The seam monitor 47 is fixed to the support bracket 36. Accordingly, when the moving means 30 moves the yarn joining device 43, the joint monitor 47 moves simultaneously with the yarn joining device 43.

  Next, the reverse drive mechanism 49 will be described. As shown in FIG. 2 and the like, the reverse drive mechanism 49 includes a first support arm 61 and a second support arm 62, a reverse rotation roller 63, and a reverse rotation roller drive motor that is a drive source of the reverse rotation roller 63 (see FIG. 2). Abbreviation).

  The reverse rotation roller 63 is rotationally driven by a driving force from the reverse rotation roller drive motor (not shown). The operation of the reverse rotation roller drive motor is controlled by the cart control unit.

  One end side of the first support arm 61 is rotatably attached to the housing body of the yarn splicing carriage 3. Further, the second support arm 62 is rotatably attached to the other end side of the first support arm 61. The reverse rotation roller 63 is rotatably provided at the tip of the second support arm 62. The yarn joining cart 3 includes a link rod 64 that is provided so as to be rotatable with respect to the casing of the yarn joining cart 3. The distal end of the link rod 64 is connected to the second support arm 62. A reverse rotation roller advance / retreat air cylinder 66 is attached to the link rod 64, and the link rod 64 can be rotated by the advance / retreat of the reverse rotation roller advance / retreat air cylinder 66.

  As described above, the first support arm 61, the second support arm 62, and the link rod 64 constitute a link mechanism. The reverse rotation roller 63 at the front end of the second support arm 62 can be moved forward and backward by controlling expansion and contraction of the reverse rotation roller advance / retreat air cylinder 66 connected to the link mechanism. As a result, the reverse rotation roller 63 is moved between the “retracted position” (for example, the position shown in FIG. 2) that does not contact the package 45 and the “contact position” (for example, the position shown in FIG. 5) that contacts the package 45. Can be moved. The operation of the reverse rotation roller advance / retreat air cylinder 66 is controlled by the cart controller.

  Next, the yarn joining operation by the yarn joining cart 3 will be described. This yarn splicing operation is performed in a spinning unit 2 when the spun yarn 10 between the spinning device 9 and the package 45 is in a split state for some reason.

  In a spinning unit 2, for example, when the spun yarn 10 between the spinning device 9 and the package 45 is in a divided state as shown in FIG. 4, the unit controller of the spinning unit 2 drives the cradle arm 71 to swing, Control is performed so as to separate the package 45 from the winding drum 72, and a brake mechanism (not shown) provided in the winding device 13 is operated. As a result, the package 45 stops rotating.

  Subsequently, the unit controller transmits a control signal to the yarn joining cart 3. The yarn joining cart 3 that has received the control signal travels to the spinning unit 2 on the yarn joining cart traveling rail 41 and stops. When the yarn joining cart 3 travels between the spinning units 2, the moving means 30 retracts the yarn joining device 43 to the retracted position. That is, if the yarn splicing cart 3 has traveled to the position where the yarn splicing device 43 has approached the yarn path, the yarn splicing device 43 is attached to the spun yarn 10 wound by each spinning unit 2. Thread breakage may occur upon contact. Therefore, as described above, when the yarn joining cart 3 is caused to travel, the yarn joining device 43 is retracted to the spun yarn 10 by retracting the yarn joining device 43 to a position separated from the yarn path (retreat position). Preventing contact.

  When the yarn splicing cart 3 stops at the target spinning unit 2, the cart control unit rotates the suction pipe 44 and the suction mouth 46, respectively, as shown in FIG. Aspirate the yarn end and catch it.

  Further, at this time, the cart control unit advances the reverse rotation roller 63 to the contact position, and rotationally drives the reverse rotation roller 63 in the direction opposite to the winding drum 72. Thereby, the package 45 is rotationally driven in a direction opposite to the winding direction (hereinafter, unwinding direction). In this state, the spun yarn 10 on the surface of the package 45 is sucked by the suction mouse 46, whereby the spun yarn 10 is pulled out of the package 45 and captured by the suction mouse 46.

  Subsequently, the carriage control unit rotates the suction pipe 44 and the suction mouth 46 in a state in which the spun yarn 10 is captured in opposite directions so that the captured spun yarn 10 faces the front side of the yarn splicing device 43. Guide to position (state of FIG. 6). The moving means 30 keeps the yarn joining device 43 in the retracted position until the guide of the spun yarn 10 by the suction pipe 44 and the suction mouth 46 is completed. Thus, by retracting the yarn joining device 43 to a position away from the yarn path, the rotating suction pipe 44 and suction mouth 46 are prevented from coming into contact with the yarn joining device 43.

  When the guide of the spun yarn 10 by the suction pipe 44 and the suction mouth 46 is finished, the carriage control unit stops the rotation of the reverse rotation roller 63. Subsequently, the moving means 30 extends the air cylinder 38 to the limit of the stroke length, moves the yarn joining device 43 in a direction approaching the yarn path, and advances the yarn joining device 43 to the yarn joining position. When the yarn joining device 43 advances to the yarn joining position, the spun yarn 10 on the spinning device 9 side captured by the suction pipe 44 and the spun yarn 10 on the package 45 side captured by the suction mouth 46 become a yarn. It is introduced into the relay device 43 (state shown in FIG. 7). As described above, according to the configuration of the present embodiment, the yarn joining device 43 itself can approach the yarn path, so that the yarn path needs to be largely bent in order to introduce the spun yarn 10 into the yarn joining device 43. There is no. That is, the spun yarn 10 can be introduced into the yarn joining device 43 in a state close to the yarn path during normal winding (a state where the yarn path is not bent so much).

  Since the stroke length of the air cylinder 38 is limited, the yarn joining device 43 does not move beyond the stroke length. That is, the air cylinder 38 itself has a function as a stopper mechanism for positioning the movement end position (yarn joining position) of the yarn joining device 43. Of course, a stopper member for determining the position of the yarn joining device 43 in the yarn joining device may be provided separately from the air cylinder 38.

  Further, as shown in FIG. 7 and the like, the joint monitor 47 is arranged so that the spun yarn 10 is introduced into the joint monitor 47 when the moving means 30 advances the yarn joining device 43 to the yarn joining position. ing. Thereby, the spun yarn 10 can be inspected by the seam monitor 47. Thus, since the seam monitor 47 itself can approach the yarn path, a member for introducing the spun yarn 10 into the seam monitor 47 is unnecessary. Further, as shown in FIG. 2 and the like, the spun yarn 10 is not introduced into the joint monitor 47 when the moving means 30 retracts the yarn joining device 43 to the retracted position. This prevents the seam monitor 47 from interfering with the yarn path of the spun yarn 10 when the yarn joining cart 3 is traveling.

  When the yarn joining device 43 has advanced to the yarn joining position, the carriage control unit rotates the yarn gathering lever 96 to contact the spun yarn 10. As a result, the spun yarn 10 between the package 45 and the suction mouth 46 and the spun yarn 10 between the spinning device 9 and the suction pipe 44 are bent by the yarn shifting lever 96, respectively. The road is regulated. The yarn shifting lever 96 guides the spun yarn 10 to a position where the spun yarn 10 can be gripped by the clamp portion 97 (state shown in FIG. 8). In this state, the carriage control unit causes the spun yarn 10 to be gripped by the clamp unit 97 by closing the clamp unit 97. In this embodiment, since the member (yarn shifting lever 96) for guiding the spun yarn 10 is provided in the yarn joining device 43, the moving means 30 advances the yarn joining device 43 to the yarn joining position. Sometimes, the yarn gathering lever 96 also advances to a position close to the yarn path. Therefore, the spun yarn 10 can be reliably guided to the yarn joining hole 90 of the yarn joining nozzle 94 by the yarn shifting lever 96. At this time, since the yarn splicing nozzle 94 has also advanced to a position close to the yarn path, the distance that the spun yarn 10 must be guided by the yarn shifting lever 96 is shortened, and the spun yarn 10 is moved to the yarn splicing hole. The bending of the yarn path when guided to 90 can be reduced.

  Subsequently, the carriage control unit starts to eject compressed air into the untwisting pipe 82. Thereby, in the untwisting pipe 82, while the air flow which goes to the back side (drawing right side of FIG. 8) of the yarn splicing device 43 generate | occur | produces, the front side (left side of FIG. 8 drawing) of the said untwisting pipe 82 A suction air flow is generated in the opening. Before and after this, the carriage control unit operates the cutter 92 so that the spun yarn 10 between the suction pipe 44 and the yarn splicing device 43 and the spun yarn 10 between the suction mouth 46 and the splicing device 43 are respectively provided. Cut off. The yarn ends formed by the cutting are sucked by the untwisting pipe 82 and drawn into the untwisting pipe 82. The drawn yarn ends are untwisted and untwisted by the action of the air flow in the untwisting pipe 82 (FIG. 9).

  When the yarn end untwisting is completed, the carriage control unit terminates the ejection of the compressed air into the untwisting pipe 82. Further, the carriage control unit further bends the yarn path of the spun yarn 10 by the yarn shifting lever 96 and the yarn holding lever 98, and drags the untwisted yarn end from the untwisted pipe 82. The yarn ends drawn from the untwisting pipe 82 are set in a state where they are overlapped with each other in the yarn joining hole 90 of the yarn joining nozzle 94 (FIG. 10). In this state, by jetting compressed air into the yarn joining hole 90, a swirling flow is generated in the yarn joining hole 90, and the fibers are twisted. As a result, the yarn end of the spun yarn 10 on the spinning device 9 side and the yarn end of the spun yarn 10 on the package 45 side are twisted and joined to form a seam.

  When the seam is formed, the carriage control unit stops the ejection of air to the yarn joining hole 90. Further, the carriage control unit opens the clamp unit 97 to release the held spun yarn 10 and releases the yarn path restriction by the yarn shifting lever 96 and the yarn pressing lever 98. Before and after this, the unit controller of the spinning unit 2 swings the cradle arm 71 to bring the outer peripheral surface of the package 45 into contact with the rotating take-up drum 72 (state of FIG. 11). Thereby, the package 45 that has been stopped can resume rotation in the winding direction, and the winding of the spun yarn 10 can be resumed.

  In the spinning machine 1 of the present embodiment, the yarn splicing device 43 itself performs the yarn splicing approaching the yarn path, and therefore, when the winding of the spun yarn 10 is resumed as shown in FIG. The road can be in a state close to the yarn path at the time of normal winding (a state that is not bent so much). Therefore, it is possible to minimize the slack of the spun yarn 10 when the winding of the spun yarn 10 is resumed after the end of the splicing.

  When the winding of the spun yarn 10 is resumed, the joint 99 formed by the yarn joining device 43 passes through the joint monitor 47 as shown in FIG. At this time, the seam 99 is inspected by the seam monitor 47. The cart controller determines the quality of the seam 99 based on the inspection result by the seam monitor 47. For example, when the seam 99 is a defective seam that does not satisfy the dimensional conditions such as a predetermined thickness and length, the yarn joining cart 3 cuts and removes the defective seam with a cutter (not shown) and uses the yarn joining device 43. Repeat the splicing.

  When the joint inspection by the joint monitor 47 is completed, the moving means 30 moves the yarn joining device 43 to the retracted position. Thereby, the yarn splicing cart 3 can travel and can travel to other spinning units 2. When the moving means 30 retracts the yarn joining device 43 to the retracted position, the yarn shifting lever 96 provided in the yarn joining device 43 also retracts to a position separated from the yarn path. As described above, when the yarn gathering lever 96 is not operated, the yarn gathering lever 96 can be retracted, so that the configuration of the yarn joining cart 3 can be made compact.

  As described above, the spinning machine 1 of the present embodiment includes the winding device 13 that winds the spun yarn 10 around the package 45, the spinning device 9 that supplies the spun yarn 10 to the winding device 13, and the package 45. A yarn joining device 43 for joining the spun yarn 10 with the spinning device 9 and a moving means 30 are provided. The moving means 30 enables the yarn joining device 43 to move between a yarn joining position that is close to the yarn path between the package 45 and the spinning device 9 during normal winding and a retracted position that is separated from the yarn path. .

  In this way, by configuring the yarn joining device 43 to be movable with respect to the yarn path, the yarn joining device 43 can be brought close to the yarn path only when necessary. Accordingly, the yarn joining device 43 can be retracted so that the yarn joining device 43 does not interfere with the yarn path during normal winding. Further, when the yarn joining becomes necessary, the spun yarn 10 can be introduced into the yarn joining device 43 by bringing the yarn joining device 43 closer to the yarn path. Thus, since the yarn joining device 43 itself can approach the yarn path, it is not necessary to largely bend the yarn path in order to introduce the spun yarn 10 into the yarn joining device 43. As a result of the bending of the spun yarn 10 being reduced, sagging of the spun yarn 10 can be prevented. Accordingly, since the spun yarn 10 can be prevented from being wound around the package 45 while being slackened, the quality of the package 45 manufactured by the spinning machine 1 can be improved. In addition, it is possible to prevent the loose spun yarn 10 from being caught by surrounding members and causing problems.

  In the spinning machine 1 of the present embodiment, the yarn joining device 43 twists the untwisted pipe 82 that untwists the yarn end on the package 45 side and the yarn end on the spinning device 9 side, and the untwisted yarn ends together. A yarn splicing nozzle 94. The moving means 30 moves the untwisting pipe 82 and the yarn joining nozzle 94 to a yarn joining position that is close to the yarn path and a retracted position that is separated from the yarn path.

  Thus, since the untwisting pipe and the yarn joining nozzle 94 can approach the yarn path, the untwisting and twisting can be performed in the vicinity of the yarn path. As a result, the splicing can be performed without greatly bending the spun yarn 10 from the yarn path during normal winding.

  The spinning machine 1 according to the present embodiment captures the spun yarn 10 on the package 45 side and the spun yarn 10 on the spinning device 9 side when the spun yarn 10 between the package 45 and the spinning device 9 is in a divided state. A yarn catching portion (a suction pipe 44 and a suction mouth 46) is provided. The moving means 30 causes the yarn joining device 43 to stand by at the retracted position during normal winding and advance to the yarn joining position during the yarn joining. The yarn catching unit guides the captured spun yarn 10 to a position where it can be introduced into the yarn joining device 43 that has advanced to the yarn joining position.

  Thereby, the spun yarn 10 can be introduced into the yarn joining device 43 that has advanced to the yarn joining position, and the yarn joining by the yarn joining device 43 can be performed.

  In the spinning machine 1 of the present embodiment, the yarn catching section is configured to guide the spun yarn 10 by rotating in a state where the spun yarn 10 is captured. The moving means 30 starts to advance the yarn joining device 43 from the retracted position to the yarn joining position after the guide of the spun yarn 10 by the yarn catching unit is completed.

  That is, when the yarn catching portion is rotated, the yarn joining device 43 is retracted to a position separated from the yarn path, thereby preventing the rotating yarn catching portion from interfering with the yarn joining device 43. Further, since the yarn joining device 43 can be retracted to avoid interference with the yarn catching portion, the flexibility of the layout of the yarn catching portion is improved.

  The spinning machine 1 according to this embodiment includes a plurality of spinning units 2 and a yarn splicing cart 3. The spinning unit 2 includes a spinning device 9 and a winding device 13. The yarn splicing carriage 3 includes a yarn splicing device 43, can travel between the plurality of spinning units 2, and stops in the vicinity of the spinning unit 2 where the spun yarn 10 is in a divided state. The yarn joining device 43 performs yarn joining. The moving means 30 waits the yarn joining device 43 at the retracted position when the yarn joining cart 3 travels.

  Thus, since the yarn splicing carriage 3 is run with the yarn splicing device 43 retracted to a position separated from the yarn path, the yarn splicing device 43 is connected to the spun yarn 10 wound by each spinning unit 2. It is possible to prevent contact.

  In the spinning machine 1 of the present embodiment, the moving means 30 linearly moves the yarn joining device 43 in a direction substantially perpendicular to the yarn path between the package 45 and the spinning device 9 during normal winding.

  Thus, by moving the yarn joining device 43 so as to be orthogonal to the yarn path, the distance for moving the yarn joining device 43 with respect to the yarn path can be shortened.

  In the spinning machine 1 of the present embodiment, the yarn splicing device 43 further includes a clamp portion 97 that holds the spun yarn 10 at the time of yarn splicing, and an electric motor 60 that is a drive source of the clamp portion 97. The moving means 30 moves the clamp part 97 and the electric motor 60 to the operation position which approached with respect to the yarn path, and the non-operation position which was spaced apart from the thread path.

  In this way, by providing the yarn joining device 43 with the clamp portion 97 and the electric motor 60, the yarn joining device 43 can be moved relative to the yarn path to perform the yarn joining.

  The spinning machine 1 according to the present embodiment includes a seam monitor 47 that inspects the quality of the seam formed by the yarn splicing in the yarn splicing device 43. The moving means 30 moves the joint monitor 47 and the yarn joining device 43 simultaneously.

  As a result, the seam monitor 47 can be moved in the direction approaching the yarn path, and the seam of the spun yarn 10 can be monitored by the seam monitor 47. On the other hand, when the seam inspection by the seam monitor 47 is not necessary, the seam monitor 47 can be retracted to a position separated from the yarn path, so that the seam monitor 47 can be prevented from interfering with the yarn path. . Further, according to the configuration of the present embodiment, it is possible to prevent sagging of the spun yarn 10 at the time of yarn joining, so that the seam inspection accuracy in the seam monitor 47 can be improved.

  In the spinning machine 1 of this embodiment, the moving means 30 includes a rail 37 and an air cylinder 38. The rail 37 guides the yarn joining device 43 between the yarn joining position and the retracted position. The air cylinder 38 drives the yarn joining device 43 in a direction along the rail 37.

  Thus, by guiding the yarn splicing device 43 by the rail 37, the yarn splicing device 43 can be moved along an accurate path along the direction approaching or separating from the yarn path.

  In the spinning machine 1 of the present embodiment, the air cylinder 38 also functions as a stopper mechanism that defines the end of the range in which the yarn splicing device 43 can move in the direction approaching the yarn path.

  Accordingly, it is possible to prevent the yarn joining device 43 from being too close to the yarn path at the time of yarn joining, and the yarn joining can be performed while appropriately maintaining the positional relationship between the yarn joining device 43 and the yarn path.

  The spinning machine 1 according to the present embodiment includes a yarn storage device 12 that is disposed between the spinning device 9 and the winding device 13 and that winds the spun yarn 10 around the outer periphery of the rotating yarn storage roller 14 to temporarily store the yarn. . The yarn joining device 43 performs the yarn joining between the yarn accumulating device 12 and the winding device 13 in the traveling direction of the spun yarn 10.

  That is, according to the configuration of the present embodiment, it is possible to prevent the spun yarn 10 from sagging at the time of splicing, so that the spun yarn 10 can be prevented from getting entangled with the rotating yarn accumulating roller 14. Therefore, the spun yarn 10 can be appropriately stored by the yarn storage device 12.

  The spinning machine 1 of the present embodiment includes a traverse device 75 that traverses the spun yarn 10 wound around the package 45 by a traverse guide 76 that reciprocates.

  That is, according to the configuration of the present embodiment, sagging of the spun yarn 10 at the time of yarn splicing can be prevented, so that it is possible to prevent the spun yarn 10 slacking from the reciprocating traverse guide 76 from being caught and causing yarn breakage. Therefore, traversing of the spun yarn 10 by the traverse device 75 can be performed appropriately.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the above embodiment, the yarn splicing cart 3 includes the yarn splicing device 43. However, instead of this, the yarn splicing cart 3 may be configured as follows. That is, the spinning unit 2 includes a winding device 13 that winds the spun yarn 10 around the package 45, a spinning device 9 that supplies the spun yarn 10 to the winding device 13, and a spun yarn between the package 45 and the spinning device 9. 10, and a moving means 30. The moving means 30 enables the yarn joining device 43 to move between a yarn joining position that is close to the yarn path between the package 45 and the spinning device 9 during normal winding and a retracted position that is separated from the yarn path. .

  In this way, each spinning unit 2 may be configured to include the yarn joining device 43.

  The configuration of the moving means 30 that moves the yarn joining device 43 relative to the yarn path is not limited to the above, and can be changed as appropriate. For example, the drive source for moving the yarn joining device 43 relative to the yarn path is not limited to the air cylinder 38, and may be a motor or the like, for example. The yarn joining device 43 does not necessarily have to move so as to be orthogonal to the yarn path, and may be configured to move obliquely with respect to the yarn path. The yarn splicing device 43 is not limited to a configuration that moves linearly on the rail, and may be configured to approach or separate from the yarn path by, for example, turning around a fulcrum.

  In the above embodiment, the spun yarn 10 is pulled out from the spinning device 9 by rotating the yarn accumulating roller 14 of the yarn accumulating device 12. Instead of this, for example, as described in Japanese Patent Application Laid-Open No. 2005-220484, a yarn feeding device that pulls out the spun yarn from the spinning device by sandwiching and rotating the spun yarn between the delivery roller and the nip roller may be provided. good.

  The movement of the joint monitor 47 may be performed independently of the yarn joining device 43. However, since the configuration of the spinning machine 1 can be simplified, it is desirable to move the joint monitor 47 and the yarn joining device 43 simultaneously.

  The configuration for inspecting the joint 99 formed by the yarn joining device 43 may be omitted. In this case, the joint monitor 47 can be omitted.

  In the above-described embodiment, the traveling direction of the spun yarn 10 is directed from the top to the bottom in the height direction, but the traveling direction of the spun yarn 10 is not particularly limited. For example, the spun yarn 10 travels from the bottom to the top. The present invention can also be applied to the configuration.

  In FIG. 2 and the like, the yarn path of the spun yarn 10 is substantially vertical, but the present invention is not limited to this. For example, when the winding device 13 is arranged on the back side of the spinning unit 2 with respect to the position shown in FIG. 2, the yarn path is formed to be inclined from the front side to the back side.

  In FIG. 1 and the like, the spinning machine 1 includes one yarn splicing cart 3, but a plurality of yarn splicing carts 3 may be provided according to the number of spinning units 2.

  In the above embodiment, the take-up drum 72 is driven in common by the plurality of spinning units 2. However, the present invention is not limited to this, and the winding drum 72 may be driven individually by each spinning unit 2. In this case, the rotational speed and direction of the take-up drum 72 can be made different for each spinning unit 2, so that the package 45 is rotated in the reverse direction by rotating the take-up drum 72 in the reverse direction. May be. In this case, the reverse rotation roller 63 can be omitted.

  The configuration of the yarn joining device 43 is not limited to the above, and the present invention can be applied to the yarn joining device 43 having other configurations.

  The spinning device is not limited to the pneumatic spinning device, and the configuration of the present invention can be applied to a spinning machine including another type of spinning device. The configuration of the present invention can be widely applied not only to a spinning machine but also to other types of yarn winding machines such as an automatic winder.

1 Spinning machine (yarn winding machine)
2 Spinning unit (yarn winding unit)
3 Yarn splicing cart 9 Spinning device (yarn feeding section)
10 Spinning yarn 13 Winding device (winding part)
30 Moving means 43 Yarn splicing device 45 Package

Claims (13)

A winding part for winding the yarn around the package;
A yarn supplying unit for supplying yarn to the winding unit;
A yarn joining device for joining the yarn between the package and the yarn supplying unit;
Moving means for allowing the yarn joining device to move to an approach position that is close to a yarn path between the package and the yarn supplying unit during normal winding, and a spaced position that is separated from the yarn path;
A yarn winding machine comprising: The yarn winding machine according to claim 1,
The yarn joining device is
An untwisting portion for untwisting the yarn end on the package side and the yarn end on the yarn feeding portion side;
A twisted portion for twisting the twisted yarn ends together;
Comprising at least
The moving means moves at least the untwisting part and the twisting part to an approach position approaching the yarn path and a separation position spaced apart from the yarn path. The yarn winding machine according to claim 1 or 2,
When the yarn between the package and the yarn supplying unit is in a divided state, the yarn catching unit captures the yarn on the package side and the yarn on the yarn supplying unit side,
The moving means causes the yarn joining device to stand by at the separated position during normal winding, and advances to the approach position during the yarn joining,
The yarn catcher, wherein the yarn catcher guides the caught yarn to a position where it can be introduced into the yarn joining device that has advanced to the approach position. A yarn winding machine according to claim 3,
The yarn catcher is configured to guide the yarn by rotating in a state of catching the yarn,
The yarn winding machine, wherein the moving means starts the advancement of the yarn joining device from the separated position to the approach position after the yarn guide by the yarn catching unit is completed. The yarn winding machine according to claim 3 or 4,
A plurality of yarn winding units including the yarn feeding unit and the winding unit;
The yarn splicing device includes the yarn splicing device, is capable of traveling between the plurality of yarn winding units, and stops in the vicinity of the yarn winding unit in which the yarn is in a divided state. A yarn splicing cart that performs splicing with
With
The yarn winding machine characterized in that the moving means causes the yarn joining device to stand by at the separated position at least when the yarn joining cart travels. A yarn winding machine according to any one of claims 1 to 5,
The yarn winding machine characterized in that the moving means linearly moves the yarn joining device in a direction substantially perpendicular to a yarn path between the package and the yarn supplying unit during normal winding. A yarn winding machine according to any one of claims 1 to 6,
The yarn joining device is
A clamp for gripping the yarn at the time of the yarn splicing;
A drive source of the clamp part;
Further comprising
The moving means moves the clamp part and the driving source to an operating position approaching the yarn path and a non-operating position spaced from the yarn path. A yarn winding machine according to any one of claims 1 to 7,
A seam monitoring device for inspecting the quality of the seam formed by the yarn splicing in the yarn splicing device,
The yarn winding machine characterized in that the moving means moves the joint monitoring device and the yarn joining device simultaneously. A yarn winding machine according to any one of claims 1 to 8,
The moving means is
A rail for guiding the yarn joining device between the approach position and the separation position;
A moving drive source for driving the yarn joining device in a direction along the rail;
A yarn winding machine comprising: A yarn winding machine according to any one of claims 1 to 9,
A yarn winding machine comprising: a stopper mechanism that defines an end of a range in which the yarn joining device can move in a direction approaching the yarn path. A yarn winding machine according to any one of claims 1 to 10,
A yarn storage device that is disposed between the yarn supplying unit and the winding unit and temporarily stores the yarn by winding the yarn around an outer periphery of a rotating yarn storage roller;
The yarn winding device, wherein the yarn joining device performs the yarn joining between the yarn accumulating device and the winding unit in a traveling direction of the yarn. A yarn winding machine according to any one of claims 1 to 11,
A yarn winding machine comprising: a traverse device that traverses the yarn wound around the package by a reciprocating traverse guide. A winding part for winding the yarn around the package;
A yarn supplying unit for supplying yarn to the winding unit;
A yarn joining device for joining the yarn between the package and the yarn supplying unit;
Moving means for allowing the yarn joining device to move to an approach position that is close to a yarn path between the package and the yarn supplying unit during normal winding, and a spaced position that is separated from the yarn path;
A yarn winding unit comprising:

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