JP2014125714A - Spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration for appropriately piecing yarns in a spinning machine having a layout in which the direction of a yarn path differs between the upstream side and the downstream side of a yarn storage device.SOLUTION: A fine spinning machine includes a spinning device 9, a take-up part 26, a yarn storage device 22, a yarn piecing device 23, a carrier device, and a movable guide. The take-up part 26 takes up a spun yarn 10 produced by the spinning device 9 onto a take-up tube 51 to form a package 50. The yarn storage device 22 stores the spun yarn 10 between the spinning device 9 and the take-up part 26. The yarn piecing device 23 pieces the spun yarn 10 on the side of the spinning device 9 and the spun yarn 10 on the side of the take-up part 26. The carrier device carries the spun yarn 10 to the yarn piecing device 23. A first yarn path is bent by the yarn storage device 22. The yarn storage device 22 is arranged at a position apart from a second yarn path. The movable guide draws the spun yarn 10 on the second yarn path to the yarn storage device 22.

Description

  The present invention relates to a spinning machine having a layout in which a yarn path is largely bent at an upstream side and a downstream side of a yarn storage device. Specifically, the present invention relates to a configuration for appropriately performing yarn splicing in the spinning machine having this layout.

  2. Description of the Related Art Conventionally, a spinning machine including a yarn storage device that winds a spun yarn around a rotating roller and temporarily stores the spun yarn is known. Patent document 1 discloses this kind of spinning machine.

  The spinning machine of Patent Document 1 includes a yarn splicing carriage, and this yarn splicing carriage includes a yarn splicing device that splics the spun yarn on the spinning device side and the spun yarn on the package side. With this configuration, when a yarn breakage occurs in a certain spinning unit, or when the yarn quality monitoring device detects a yarn defect and cuts the yarn with a cutter, the yarn joining cart travels to the spinning unit and stops and stops. Yarn splicing is performed by the device.

  When performing yarn splicing, spun yarn is supplied to the yarn accumulating device. Here, as a method for supplying spun yarn to a yarn storage device, as shown in Patent Document 1, for example, a configuration using a movable guide is known. The spinning machine of Patent Document 1 includes a movable guide driven by an air cylinder or the like on either the upstream side or the downstream side of the yarn accumulating device. With this movable guide, the spun yarn can be stored again in the yarn storage device by supplying the spun yarn to the yarn storage device.

  In recent years, as shown in Patent Document 2, there has been proposed a spinning machine having a configuration in which the direction of the yarn path is greatly different between the upstream side and the downstream side of the yarn storage device. In the spinning machine of Patent Document 2, the yarn path on the upstream side of the yarn accumulating device is directed rearward and upward (FIG. 1 of Patent Document 2). On the other hand, the yarn path on the downstream side of the yarn accumulating device is directed forward and upward. That is, the yarn path changes by about 90 ° between the upstream side and the downstream side of the yarn storage device.

JP 2004-277944 A JP 2012-31523 A

  However, Patent Document 2 does not disclose a spinning machine including a yarn splicing device. In this layout, since the yarn path is greatly different between the upstream side and the downstream side of the yarn storage device, it has been considered difficult to supply the spun yarn to the yarn storage device after the start of piecing.

  In the layout of Patent Document 1, the direction of the yarn path basically does not change between the upstream side and the downstream side of the yarn storage device. Accordingly, the spun yarn can be supplied to the yarn storage device by bringing one movable guide closer to the yarn storage device.

  An object of the present invention is to provide a configuration in which yarn splicing is appropriately performed in a spinning machine having a layout in which the direction of a yarn path changes between an upstream side and a downstream side of a yarn storage device.

Means and effects for solving the problems

  According to an aspect of the present invention, a spinning machine includes a spinning device, a winding unit, a yarn accumulating device, a yarn joining device, a conveying device, and a movable guide. The spinning device generates a spun yarn by twisting the fiber bundle. The winding unit winds the spun yarn generated by the spinning device around a winding tube to form a package. The yarn storage device stores the spun yarn between the spinning device and the winding unit. The yarn splicing device connects the spun yarn on the spinning device side and the spun yarn on the winding unit side. The conveying device conveys the spun yarn to the yarn joining device. The movable guide draws the spun yarn to the yarn storage device. A first yarn path that is a yarn path during winding of the package by the winding unit is bent by the yarn accumulating device. The yarn accumulating device is located at a position away from the second yarn path which is a yarn path before the spun yarn is conveyed to the yarn joining device by the conveying device and the spun yarn is attracted by the movable guide. Has been placed. The movable guide draws the spun yarn on the second yarn path to the yarn accumulating device.

  Accordingly, even in a spinning machine having a layout in which the yarn path is bent by the yarn storage device during winding and the yarn path is separated from the yarn storage device when piecing is performed, the spun yarn is fed to the yarn storage device by the movable guide. Since it can be drawn, yarn splicing can be performed automatically.

  In the spinning machine, the movable guide is disposed on the upstream side in the yarn traveling direction with respect to the yarn storage device, and the second guide is disposed on the downstream side in the yarn traveling direction with respect to the yarn storage device. And a guide. Each position of the first guide and the second guide is switched between a normal position that is a position when the winding unit winds the spun yarn and a retracted position that is a position retracted from the normal position. Is possible.

  Thus, the spun yarn can be drawn to the yarn storage device on the upstream side and the downstream side of the yarn storage device by the two guides. Therefore, even if the yarn storage device has a layout that may leave the yarn path, the spun yarn can be reliably supplied to the yarn storage device.

  The spinning machine may further include a drive unit that drives the second guide from the retracted position to the normal position after driving the first guide from the retracted position to the normal position. preferable.

  Thus, by driving the drive unit, the first guide can be moved to guide the spun yarn to the vicinity of the yarn storage device, and then the second guide can be moved to supply the yarn to the yarn storage device.

  In the spinning machine, the yarn storage device includes a yarn storage roller around which the spun yarn is wound, and an outer peripheral surface of the yarn storage roller by rotating integrally with the yarn storage roller in contact with the spun yarn. And a yarn hooking member around which the spun yarn is wound. The movable guide draws the spun yarn to a position where it does not come into contact with the yarn hooking member when the first guide reaches the normal position from the retracted position. The movable guide draws the spun yarn to a position in contact with the yarn hooking member at a timing when the first guide reaches the normal position and the second guide reaches the normal position.

  Thus, after the two guides move to the normal position (position when winding), the spun yarn can be brought into contact with the yarn hooking member and wound around the yarn accumulating device.

  In the spinning machine, the height in the apparatus height direction when the first guide is in the retracted position is the height at which the conveying device captures the yarn end on the spinning device side, and the yarn joining device It is preferable to be between the height of arrangement.

  Thus, after the conveying device captures the yarn end on the spinning device side and conveys the yarn end to the yarn joining device, the first guide moves from the retracted position to the normal position to reliably draw the spun yarn to the yarn accumulating device. be able to.

  In the spinning machine, the trajectory of the first guide when the first guide moves from the retracted position to the normal position, and the conveying device transfers the spun yarn on the spinning device side to the yarn joining device. It is preferable that the trajectory of the transport device when transporting does not overlap.

  Thereby, even if it is a case where a 1st guide is driven, for example in the middle of a conveyance device conveying a yarn end to a yarn splicing device, it can prevent that a conveyance device and a 1st guide collide. Accordingly, it is possible to shorten the time required for piecing.

  The spinning machine preferably includes a defining member that defines the normal position of the first guide.

  Thereby, since the normal position of the first guide can be accurately positioned, the first guide can appropriately guide the spun yarn at the normal position.

  In the spinning machine, a guide groove for guiding the spun yarn is formed in the second guide. The spinning machine includes a third guide for guiding the spun yarn guided by the guide groove of the second guide when the second guide is in the normal position.

  Thereby, the member that draws the spun yarn to the yarn accumulating device and the member that guides the spun yarn during winding (regulation guide) can be made common, so the number of parts can be reduced.

  The spinning machine includes a yarn drawing device that draws a yarn end from the package. The transport device includes a first transport device and a second transport device. The first conveying device captures the yarn end pulled out by the yarn drawing device and conveys the yarn end to the yarn joining device. The second conveying device captures the yarn end on the spinning device side and conveys it to the yarn joining device.

  Thereby, the yarn end of the spun yarn can be reliably pulled out by the yarn drawing device, so that it is possible to prevent failure of the guide of the spun yarn by the first transport device. Therefore, the yarn joining can be performed more reliably.

  The spinning machine includes a plurality of spinning units. Each of the spinning units includes the spinning device, the winding unit, the yarn storage device, the movable guide, the yarn joining device, and the transport device.

  Thereby, since the yarn joining device is provided for each spinning unit, it is not necessary to wait for the arrival of the yarn joining cart, and the yarn joining can be performed quickly.

The side view which shows the structure of a spinning unit provided with the yarn storage apparatus which concerns on one Embodiment of this invention. The perspective view which shows the thread | yarn storage apparatus and the thread | yarn guide arrange | positioned in the vicinity. The perspective view which shows the shape and stopper of a 1st guide. The side view which shows a mode when a conveying apparatus catches a yarn end. The side view which shows a mode when a conveyance apparatus guides spun yarn to a yarn splicing apparatus. The side view which shows the mode before and behind a 1st guide moving. The side view which shows the mode before and behind a 2nd guide moving.

  Next, a spinning machine (spinning machine) according to an embodiment of the present invention will be described with reference to the drawings. In this specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the fiber bundle and spun yarn during spinning.

  The spinning machine includes a large number of spinning units arranged side by side and an unillustrated machine base control device that centrally manages the spinning units. Each spinning unit 2 spins the fiber bundle 8 sent from the draft device 7 by the spinning device 9 to generate the spun yarn 10, and winds the spun yarn 10 by the winding unit 26 to form the package 50. .

  As shown in FIG. 1, each spinning unit 2 includes a draft device 7, a spinning device 9, a yarn accumulating device 22, a yarn joining device 23, and a yarn monitoring device 25 arranged in order from upstream to downstream. And a winding unit 26. Each unit provided in the spinning unit 2 is controlled by a unit controller (not shown) provided in the spinning unit 2.

  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 this 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 conveys a sliver 15 supplied from a sliver case (not shown) via a sliver guide by sandwiching it between a rotating draft roller and a counter roller facing the sliver 15 to obtain a predetermined amount of fiber. The fiber bundle 8 is drawn (draft) until it becomes (or thickness).

  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. In the present embodiment, a pneumatic spinning device that twists the fiber bundle 8 using a swirling airflow is employed. Specifically, the spinning device 9 includes a fiber guide portion, a swirl flow generation nozzle, and a hollow guide shaft body, although detailed description and illustration are omitted. The fiber guide unit guides the fiber bundle 8 sent from the draft device 7 to a spinning chamber formed inside the spinning device 9. The swirl flow generating nozzle is disposed around the path of the fiber bundle 8 and generates a swirl flow in the spinning chamber. By this swirl flow, the fiber ends of the fiber bundles 8 in the spinning chamber are reversed and swirled. The hollow guide shaft body guides the spun yarn 10 from the spinning chamber to the outside of the spinning device 9.

  Downstream of the spinning device 9, a delivery roller 21 and a nip roller that can contact and separate from the delivery roller 21 are provided. The spun yarn 10 discharged from the spinning device 9 is sandwiched between the delivery roller 21 and the nip roller, and the delivery roller 21 is rotationally driven, whereby the spun yarn 10 can be sent to the winding unit 26 side.

  A first guide 61 for guiding the spun yarn 10 is disposed downstream of the delivery roller 21. The first guide 61 guides the spun yarn 10 to the yarn storage device 22. The first guide 61 is movable to draw the spun yarn 10 to the yarn accumulating device 22 when performing yarn splicing or the like. As shown in FIGS. 2 and 3, the first guide 61 is formed with an arm portion 61a, a guide portion 61b, and a contact portion 61c.

  The arm part 61a is an elongated flat plate, and its base end side (base side) is rotatably supported. The first guide 61 can rotate in the direction of the arrow in FIG. 3 (upward in the apparatus height direction) using a guide drive motor (drive unit) (not shown) as a drive source. Thereby, the position of the 1st guide 61 can be switched to the normal position (position of FIG. 2) which is a position when winding the spun yarn 10, and the retracted position retracted from the normal position.

  A guide groove is formed in the guide portion 61b, and the spun yarn 10 can be guided by the guide groove. In the vicinity of the yarn accumulating device 22, a stopper (regulating member) 70 is provided to prevent the first guide 61 from rotating excessively (so that the first guide 61 is appropriately disposed at the normal position). Yes. In the normal position, the contact portion 61 c of the first guide 61 contacts the stopper 70.

  A yarn storage device 22 is provided downstream of the first guide 61. The yarn storage device 22 includes a yarn storage roller 41, an electric motor 42 that rotationally drives the yarn storage roller 41, and a yarn hooking member 43. When the spun yarn 10 is wound around the outer peripheral surface of the yarn accumulating roller 41, the spun yarn 10 is temporarily stored.

  A yarn hooking member 43 is attached to the downstream end of the yarn accumulating roller 41. The yarn hooking member 43 is supported so as to be rotatable relative to the yarn accumulating roller 41. A permanent magnet is attached to either the yarn hooking member 43 or the yarn accumulating roller 41, and a magnetic hysteresis material is attached to the other. By these magnetic means, a torque is generated that resists the yarn hooking member 43 from rotating relative to the yarn accumulating roller 41. Therefore, only when a force that overcomes this torque is applied to the yarn hooking member 43 (when a predetermined tension or more is applied), the yarn hooking member 43 rotates relative to the yarn accumulating roller 41, and the yarn hooking member 43 rotates. The spun yarn 10 wound around the storage roller 41 can be unwound. When the force overcoming this torque is not applied to the yarn hooking member 43, the yarn storage roller 41 and the yarn hooking member 43 rotate integrally, and the spun yarn 10 is stored in the yarn storage roller 41.

  In this way, the yarn storage device 22 unwinds the spun yarn 10 when the downstream yarn tension increases, and stops the disentanglement of the spun yarn 10 when the yarn tension decreases (the spun yarn 10 is likely to loosen). To work. Thereby, the yarn accumulating device 22 can eliminate the slackness of the spun yarn 10 and apply an appropriate tension to the spun yarn 10. Further, the yarn hooking member 43 operates so as to absorb the fluctuation of the tension applied to the spun yarn 10 between the yarn accumulating device 22 and the winding unit 26 as described above. Can be prevented from affecting the spun yarn 10 between the yarn storage device 22 and the yarn storage device 22.

  The yarn traveling direction on the upstream side of the yarn storage device 22 with respect to the machine base installation surface is a substantially horizontal direction, but the yarn traveling direction on the downstream side of the yarn storage device 22 is an obliquely upward direction. Accordingly, the yarn path (first yarn path) during winding of the spun yarn 10 is bent largely (90 ° or more) by the yarn storage device 22.

  Further, a regulation guide 62 that suppresses the behavior of the spun yarn 10 unwound from the yarn storage roller 41 is provided downstream of the yarn storage roller 41. As shown in FIG. 2 and the like, the regulation guide 62 includes a second guide 62a and a third guide 62b. In addition to the second guide 62a and the third guide 62b, another restriction guide (for example, a restriction guide having an opening larger than the restriction guide 62) may be provided.

  Further, as shown in FIG. 2, the second guide 62a can rotate in a plane perpendicular to the yarn traveling direction. Thereby, the position of the second guide 62a is switched between the normal position (solid line in FIG. 2), which is the position when the spun yarn 10 is wound, and the retracted position (chain line in FIG. 2) retracted from the normal position. Can do. The second guide 62 a moves from the retracted position to the normal position, thereby drawing the spun yarn 10 together with the first guide 61 to the yarn accumulating device 22. Although the method for moving the second guide 62a is arbitrary, in the present embodiment, the second guide 62a is moved by transmitting the driving force of the above-described guide drive motor via a cam or the like. A guide groove for guiding the spun yarn 10 is formed in the second guide 62a.

  The third guide 62b is disposed downstream of the second guide 62a and adjacent to the second guide 62a. The third guide 62b is fixed to the frame or the like of the spinning unit 2. Similar to the second guide 62a, a guide groove is formed in the third guide 62b. When the second guide 62a is in the normal position, the guide groove of the second guide 62a and the guide groove of the third guide 62b face each other. Accordingly, the spun yarn 10 can be guided by the guide groove of the second guide 62a and the guide groove of the third guide 62b.

  A yarn joining device 23 is provided downstream of the regulation guide 62. When the spun yarn 10 between the spinning device 9 and the package 50 is in a divided state for some reason, the yarn joining device 23 is connected to the spun yarn 10 (first yarn) on the spinning device 9 side and the package 50 side. The yarn (second yarn) is spliced. In the present embodiment, the yarn joining device 23 is a splicer device that twists yarn ends together by a swirling air flow generated by compressed air. However, the yarn joining device 23 is not limited to the splicer device, and a mechanical knotter or the like can be employed, for example.

  The spinning unit 2 includes a conveying device that conveys the spun yarn 10 to the yarn joining device 23. The conveying device includes a first conveying device 27 that conveys the first yarn, and a second conveying device 28 that conveys the second yarn to the yarn joining device 23.

  The first transport device 27 has a root portion that is rotatably supported, and can rotate in the vertical direction with the root portion as a rotation center. The first transport device 27 is configured in a hollow shape and is connected to a blower (not shown), and can generate a suction air flow. The first conveying device 27 can capture the yarn end of the first yarn sent out by the delivery roller 21 by rotating downward (see the chain line in FIG. 1). At this time, the delivery roller 21 and the nip roller are in contact with each other in this embodiment, but the delivery roller 21 and the nip roller may not be brought into contact with each other. The first conveying device 27 can convey the first yarn to the yarn joining device 23 by capturing the first yarn and then rotating upward.

  The second transport device 28 has a root portion that is rotatably supported, and can rotate in the vertical direction with the root portion as a rotation center. The second transfer device 28 is also configured in a hollow shape and connected to a blower (not shown), and can generate a suction air flow. The second conveying device 28 can capture the yarn end of the second yarn on the package side by rotating upward (see the chain line in FIG. 1). The second conveying device 28 can convey the second yarn to the yarn joining device 23 by capturing the second yarn and then rotating downward.

  By driving the yarn joining device 23 in this state, the first yarn and the second yarn are joined, and the spun yarn 10 is brought into a continuous state between the spinning device 9 and the package 50. Thereby, winding of the spun yarn 10 around the package 50 can be resumed.

  In addition, a yarn detection sensor may be provided in at least one of the first conveyance device 27 and the second conveyance device 28 to determine whether or not the spun yarn 10 has been successfully captured. If it is determined that the capture of the first yarn has failed based on the detection result of the yarn detection sensor provided in the first conveying device 27, the unit controller stops the draft operation of the draft device 7 and the spinning operation of the spinning device 9. To do. Further, if the first transport device 27 has already started moving toward the normal position, it is moved again to the capture position. If the first transport device 27 remains at the capture position, the unit controller waits as it is. At the same time or before and after that, the unit controller performs a cleaning operation of the spinning device 9. Specifically, the unit controller opens the spinning chamber by separating the hollow guide shaft body and the fiber guide portion. The unit controller controls the spinning device 9 so that air is blown to the tip of the hollow guide shaft that is exposed by opening the spinning chamber, and the tip of the hollow guide shaft is cleaned. Thereafter, the unit controller returns the hollow guide shaft body and the fiber guide portion to the spinning position (releasing the separated state), and resumes the drafting operation of the drafting device 7 and the spinning operation of the spinning device 9. And the spinning device 9 is controlled. By performing the above processing, it is possible to prevent a failure in capturing the first yarn by the first conveying device 27 again.

  On the other hand, when it is determined that the capture of the second yarn has failed based on the detection result of the yarn detection sensor provided in the second transport device, the unit controller determines that the withdrawal of the second yarn from the package 50 has failed. Thus, the spinning operation by the spinning device 9 is not resumed. Then, the unit controller controls operations of the winding unit 26, the yarn drawing device 54, and the second conveying device 28 so that the second yarn is pulled out from the package 50 again.

  In addition, even if the above processing is performed, if the capture of the first yarn or the second yarn fails for a predetermined number of times, the unit controller displays an alarm on a display device (not shown) and operates the spinning unit 2. Stop. The operator takes action on the spinning unit 2 and restarts the operation of the spinning unit 2.

  A yarn monitoring device 25 is provided downstream of the yarn joining device 23. The yarn monitoring device 25 monitors the thickness of the traveling spun yarn 10 with a capacitance sensor (not shown). The yarn monitoring device 25 transmits a yarn defect detection signal to the unit controller when detecting a yarn defect of the spun yarn 10 (a portion where the thickness of the spun yarn 10 is abnormal). When the unit controller receives the yarn defect detection signal, the unit controller drives the cutter 24 (yarn cutting device) disposed in the vicinity of the yarn monitoring device 25 to cut the spun yarn 10. Note that the yarn monitoring device 25 is not limited to the electrostatic capacitance type sensor, and for example, the thickness of the yarn may be monitored by a light transmission type sensor. Moreover, you may monitor the foreign material contained in the spun yarn 10 as a yarn fault.

  A winding unit 26 is disposed downstream of the yarn storage device 22. The winding unit 26 includes a cradle arm 52, a winding drum 53, and a yarn drawing device 54. The yarn path from the yarn storage device 22 to the winding unit 26 is bent and guided by the downstream guide 63.

  The cradle arm 52 can rotatably support a winding tube 51 for winding the spun yarn 10. The cradle arm 52 is rotatable around the root portion as a rotation center. Thereby, even if the winding tube 51 winds the spun yarn 10 and the package diameter is increased, the winding of the spun yarn 10 can be appropriately continued.

  The winding drum 53 rotates while being in contact with the winding pipe 51 or the outer peripheral surface of the package 50 by transmitting a driving force of a winding drum drive motor (not shown). A traverse groove (not shown) is formed on the outer circumferential surface of the winding drum 53, and the spun yarn 10 can be traversed with a predetermined width by the traverse groove. Thus, the winding unit 26 can form the package 50 by winding the spun yarn 10 around the winding tube 51 while traversing the spun yarn 10.

  A yarn drawing device 54 and a guide plate 55 are disposed in the vicinity of the winding drum 53. The yarn drawing device 54 is a device that pulls out the yarn end on the surface of the package 50 when performing yarn splicing or the like. The yarn drawing device 54 generates an air flow along the surface of the package 50 when receiving an instruction to perform yarn splicing or the like. By this air flow, the yarn end on the surface of the package 50 is pulled out and guided downward. In the above-described second conveying device 28, the yarn end drawn by the yarn drawing device 54 is guided along the guide plate 55, so that the spun yarn 10 can be reliably captured by the second conveying device 28. . The second conveying device 28 may be configured to draw the yarn end without providing the yarn drawing device 54.

  Next, the processing performed by each member when performing yarn splicing, particularly the first guide 61 and the second guide 62a (sometimes collectively referred to as the movable guide 60) supplies the spun yarn 10 to the yarn accumulating device 22 ( The drawing process will be described. 4 to 7, in order to make the drawings easy to understand, the next process is performed after one process is finished. However, the next process is started before one process is finished. Is also possible.

  When yarn breakage occurs during winding of the package 50, or when the cutter 24 cuts the spun yarn 10, the spun yarn 10 is in a divided state, so that yarn splicing is performed. At this time, the winding operation of the package 50 by the winding unit 26, the draft operation by the draft device 7, and the spinning operation by the spinning device 9 are also stopped. As shown in FIG. 4, the movable guide 60 moves from the normal position to the retracted position. Further, the yarn end of the package 50 is drawn out by the yarn drawing device 54.

  Next, the second conveyance device 28 rotates upward to capture the yarn end of the second yarn drawn out by the yarn drawing device 54. Thereafter, the second conveying device 28 returns to the original position (normal position) while sucking the second yarn, and the second yarn is guided by the yarn joining device 23 to a position where the yarn can be spliced. Next, it is preferable to restart the draft operation by the draft device 7 and the spinning operation by the spinning device 9. As a result, the amount of the first yarn that is not wound around the package 50 can be reduced. And the 1st conveying apparatus 27 capture | acquires the yarn end of the 1st yarn which the delivery roller 21 sent out by rotating below. Thereafter, the first conveying device 27 returns to the original position (normal position) while sucking the first yarn after the yarn end is captured. Thereby, as shown in FIG. 5, the first yarn and the second yarn can be guided to the yarn joining device 23.

  If the second yarn is guided by the second conveying device 28 when the second conveying device 28 returns to the normal position, the second yarn passes through the monitoring area of the yarn monitoring device 25. Therefore, at this time, the yarn monitoring device 25 can determine whether or not the second yarn is guided by the second conveying device 28. When the yarn monitoring device 25 determines that the second yarn is not guided, the unit controller determines that the second yarn has not been drawn from the package 50 and does not resume the spinning operation by the spinning device 9. Then, the unit controller controls operations of the winding unit 26, the yarn drawing device 54, and the second conveying device 28 so that the second yarn is pulled out from the package 50 again.

  In the present embodiment, after the second conveying device 28 guides the second yarn first, the first conveying device 27 guides the first yarn. However, the guidance operation by the first transport device 27 may be performed first.

FIG. 5 shows a trajectory (thin line) when the first transport device 27 returns to the original position. In the vicinity of the locus of the first conveying device 27, the yarn joining device 23, the first guide 61, and the regulation guide 62 are arranged. The positional relationship of each member is determined so that the first conveying device 27 does not collide with these members even if the first conveying device 27 rotates upward or downward.

  In the yarn path (second yarn path) when the first transport device 27 transports the first yarn to the yarn joining device 23, the yarn storage device 22 is greatly separated from the yarn path. In the case of Patent Document 1, since the guide upstream or downstream of the yarn accumulating device also guides the spun yarn in the same second yarn path, the yarn accumulating device is not separated from the yarn path in the second yarn path.

  After the first conveying device 27 and the second conveying device 28 respectively convey the first yarn and the second yarn to the yarn joining device 23, the first guide 61 is moved from the retracted position to the normal position by the guide drive motor (FIG. 6). Thereby, the guide groove of the guide portion 61 b of the first guide 61 guides the spun yarn 10 while capturing the spun yarn 10. As a result, the spun yarn 10 can be brought closer to the yarn storage device 22. As shown in FIG. 6, the spun yarn 10 is not supplied to the yarn accumulating device 22 (specifically, the yarn hooking member 43) only by moving the first guide 61 to the normal position.

  As shown in FIG. 4, the position when the first conveying device 27 catches the first yarn on the downstream side of the delivery roller 21 is higher than the retracted position of the first guide 61 (the vertical direction in the figure). ). In other words, the retracted position of the first guide 61 in the apparatus height direction is between the first conveying device 27 and the yarn joining device 23 when the first yarn is captured. As a result, the spun yarn 10 is positioned between the first guide 61 and the yarn accumulating device 22. Therefore, the first guide 61 can reliably capture the spun yarn 10.

  Note that the first guide 61 can be moved to the normal position at the same time as the first conveying device 27 conveys the first yarn to the yarn joining device 23. In this case, the trajectories do not intersect so that the first transport device 27 and the first guide 61 do not collide.

  Next, the second guide 62a moves from the retracted position to the normal position (see FIG. 7). Thereby, the spun yarn 10 can be brought closer to the yarn accumulating device 22. As a result, the spun yarn 10 can be hooked on the yarn hooking member 43 of the yarn accumulating device 22, the spun yarn 10 is stored in the yarn accumulating roller 41, and the slack of the spun yarn 10 that occurs during yarn splicing can be eliminated. it can.

  In this state, when the yarn splicing is completed, the unit controller drives the winding drum 53 and the like that have been stopped again. Thereby, winding of the package 50 can be restarted.

  As described above, the spinning machine of this embodiment includes the spinning device 9, the winding unit 26, the yarn storage device 22, the yarn joining device 23, the transport device, and the movable guide 60. The spinning device 9 generates a spun yarn 10 by twisting the fiber bundle 8. The winding unit 26 winds the spun yarn 10 generated by the spinning device 9 around the winding tube 51 to form the package 50. The yarn storage device 22 stores the spun yarn 10 between the spinning device 9 and the winding unit 26. The yarn joining device 23 connects the spun yarn 10 on the spinning device 9 side and the spun yarn 10 on the winding unit 26 side. The conveying device conveys the spun yarn 10 to the yarn joining device 23. The movable guide 60 draws the spun yarn 10 toward the yarn storage device 22. The first yarn path is bent by the yarn storage device 22. Further, the yarn accumulating device 22 is arranged at a position away from the second yarn path. The movable guide 60 draws the spun yarn 10 on the second yarn path to the yarn accumulating device 22.

  Thereby, also in the spinning machine of the layout of this embodiment, since the spun yarn 10 can be drawn to the yarn accumulating device 22 by the movable guide 60, yarn splicing can be performed automatically.

  The movable guide 60 includes a first guide 61 disposed upstream of the yarn storage device 22 in the yarn traveling direction and a second guide 62a disposed downstream of the yarn storage device 22 in the yarn traveling direction. Composed. Each position of the first guide 61 and the second guide 62a can be switched between a normal position that is a position when the winding unit 26 winds the spun yarn 10 and a retracted position that is a position retracted from the normal position. It is.

  Accordingly, the spun yarn 10 can be drawn to the yarn storage device 22 on the upstream side and the downstream side of the yarn storage device 22 by the two guides. Therefore, even with the layout of this embodiment, the spun yarn 10 can be reliably supplied to the yarn accumulating device 22.

  A guide drive motor is provided that drives the second guide 62a from the retracted position toward the normal position after driving the first guide 61 from the retracted position toward the normal position.

  Accordingly, by driving the guide drive motor, the first guide 61 is moved to guide the spun yarn 10 to the vicinity of the yarn accumulating device 22, and then the second guide 62 a is moved to the yarn accumulating device 22. 10 can be supplied.

  The yarn accumulating device 22 rotates the yarn accumulating roller 41 around which the spun yarn 10 is wound, and the yarn accumulating roller 41 so as to rotate integrally with the yarn accumulating roller 41 in contact with the spun yarn 10. A yarn hooking member 43 to be wound. The movable guide 60 draws the spun yarn 10 to a position where it does not contact the yarn hooking member 43 at the timing when the first guide 61 reaches the normal position from the retracted position. The movable guide 60 draws the spun yarn 10 to a position where it comes into contact with the yarn hooking member 43 at the timing when the first guide 61 reaches the normal position and the second guide 62a reaches the normal position.

  Thereby, the spun yarn 10 can be wound around the yarn accumulating device 22 after the two guides move to the normal position (position when winding).

  The height in the apparatus height direction when the first guide 61 is in the retracted position is the height at which the conveying device (first conveying device 27) captures the yarn end on the spinning device 9 side, and the yarn joining device 23 It is between the height of arrangement.

  Thus, after the first conveying device 27 captures the first yarn on the spinning device 9 side and conveys it to the yarn joining device 23, the first guide 61 moves from the retracted position to the normal position, and the spun yarn 10 Can be reliably captured and drawn to the yarn accumulating device 22.

  The trajectory of the first guide 61 when the first guide 61 moves from the retracted position to the normal position and the trajectory of the transport device when the transport device transports the spun yarn 10 on the spinning device 9 side to the yarn joining device 23. And do not overlap.

  Thereby, for example, even when the first conveying device 27 drives the first guide 61 in the middle of conveying the first yarn to the yarn joining device 23, the first conveying device 27 and the first guide 61 collide. Can be prevented. Accordingly, it is possible to shorten the time required for piecing.

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

  The shapes of the first guide 61, the second guide 62a, and the third guide 62b are arbitrary and can be changed as appropriate. Further, the driving source of the first guide 61 and the second guide 62a and the mechanism for transmitting the driving force are also arbitrary and can be changed as appropriate. The first guide 61 and the second guide 62a are preferably driven by the same drive source, but may be driven by different drive sources. Further, the first guide 61 and the second guide 62a are not limited to arc motion (rotational motion), and may be configured to slide.

  Instead of the configuration in which the yarn splicing device 23 is provided for each spinning unit 2, a configuration in which a work carriage that can move between the spinning units 2 is provided and the work cart performs yarn splicing may be employed.

  In the above embodiment, the delivery roller 21 is arranged on the downstream side of the spinning device 9, but the delivery roller 21 may be omitted. In this case, since the spun yarn 10 with unstable quality may be sent out when the operation of the spinning device 9 is resumed, it is preferable to have a configuration that sucks and removes yarn with unstable yarn quality.

2 Spinning unit 9 Spinning device 22 Yarn accumulating device 23 Yarn splicing device 26 Winding part 27 First conveying device 28 Second conveying device 41 Yarn accumulating roller 43 Yarn hooking member 60 Movable guide 61 First guide 62 Restriction guide 62a Second guide 62b Third guide 70 Stopper (regulating member)

Claims (10)

A spinning device for producing a spun yarn by twisting the fiber bundle;
A winding unit that winds the spun yarn generated by the spinning device around a winding tube to form a package;
A yarn storage device for storing the spun yarn between the spinning device and the winding unit;
A yarn splicing device that connects the spun yarn on the spinning device side and the spun yarn on the winding unit side;
A conveying device for conveying the spun yarn to the yarn joining device;
A movable guide that draws the spun yarn to the yarn storage device;
With
The first yarn path that is the yarn path during winding of the package by the winding unit is bent by the yarn storage device,
After the conveying device conveys the spun yarn to the yarn joining device, the yarn accumulating device is located at a position away from the second yarn path which is a yarn path before the spun yarn is attracted by the movable guide. Is placed,
The spinning machine according to claim 1, wherein the movable guide draws the spun yarn on the second yarn path to the yarn accumulating device. The spinning machine according to claim 1,
The movable guide is
A first guide disposed upstream of the yarn storage device in the yarn traveling direction;
A second guide disposed downstream of the yarn storage device in the yarn traveling direction;
Consisting of
Each position of the first guide and the second guide is switched between a normal position that is a position when the winding unit winds the spun yarn and a retracted position that is a position retracted from the normal position. A spinning machine characterized in that it is possible. The spinning machine according to claim 2,
The spinning machine further comprising a drive unit that drives the second guide from the retracted position toward the normal position after the first guide is driven from the retracted position toward the normal position. The spinning machine according to claim 3, wherein
The yarn storage device
A yarn storage roller around which the spun yarn is wound;
A yarn hooking member that winds the spun yarn around the outer peripheral surface of the yarn accumulating roller by rotating integrally with the yarn accumulating roller in contact with the spun yarn,
The movable guide is
At the timing when the first guide reaches the normal position from the retracted position, the spun yarn is drawn to a position where it does not contact the yarn hooking member,
When the first guide reaches the normal position and the second guide reaches the normal position from the retracted position, the spun yarn is drawn to a position in contact with the yarn hooking member. Spinning machine. The spinning machine according to any one of claims 2 to 4,
The height in the apparatus height direction when the first guide is in the retracted position is a height at which the conveying device captures the yarn end on the spinning device side and a height at which the yarn joining device is disposed. Spinning machine characterized by being between. The spinning machine according to any one of claims 2 to 4,
The trajectory of the first guide when the first guide moves from the retracted position to the normal position, and the transport device when the transport device transports the spun yarn on the spinning device side to the yarn joining device. Spinning machine characterized by the fact that it does not overlap with the trajectory. The spinning machine according to any one of claims 2 to 6,
A spinning machine comprising a defining member that defines the normal position of the first guide. The spinning machine according to any one of claims 2 to 7,
The second guide has a guide groove for guiding the spun yarn,
A spinning machine comprising: a third guide for guiding the spun yarn guided by the guide groove of the second guide when the second guide is in the normal position. The spinning machine according to any one of claims 1 to 7,
A yarn drawing device for pulling out a yarn end from the package;
The transfer device
A first conveying device that captures the yarn end drawn by the yarn drawing device and conveys it to the yarn joining device;
A spinning machine comprising: a second conveying device that captures a yarn end on the spinning device side and conveys the yarn end to the yarn joining device. The spinning machine according to any one of claims 1 to 8,
With multiple spinning units,
Each spinning unit includes the spinning device, the winding unit, the yarn accumulating device, the movable guide, the yarn joining device, and the conveying device.

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