CN118166460A

CN118166460A - Yarn hanging device and false twisting machine

Info

Publication number: CN118166460A
Application number: CN202311440312.XA
Authority: CN
Inventors: 近田秀和; 笹川修文; 广濑太志
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2022-12-09
Filing date: 2023-11-01
Publication date: 2024-06-11
Also published as: JP2024083275A; EP4382467A1

Abstract

The invention provides a yarn hanging device and a false twisting machine, which can prevent a bobbin from forming a strip winding when a bobbin is hung, and obtain a package with proper shape. The yarn hanging device comprises a yarn holding part, a yarn hanging arm with a yarn clamping part, a traversing yarn guide and a control part. The yarn locking portion is configured to lock the yarn held by the yarn holding portion in the middle of the movement of the yarn arm from the standby position to the yarn hanging position, and to disengage the yarn when the yarn arm is positioned at the yarn hanging position. The control unit controls the traverse guide to reciprocate within a predetermined movement range after the traverse guide is moved outside the predetermined movement range and the thread separated from the thread locking unit is caught by the traverse guide. The control unit controls the traverse guide to move toward the standby position when the yarn is not present on the movement locus between the yarn hanging position and the standby position of the yarn hanging arm while the traverse guide is reciprocating within the predetermined movement range.

Description

Yarn hanging device and false twisting machine

Technical Field

The present invention relates to a yarn hooking device for hooking a yarn to a winding device, and a false twisting machine having the yarn hooking device.

Background

The winding device for winding a yarn around a bobbin to form a package has the following structure: while traversing the yarn within a predetermined traversing range by a traversing yarn guide that reciprocates in the axial direction of the yarn, the yarn is wound around a yarn bobbin that is rotatably mounted on a pair of bobbin holders of a cradle. In such a winding device, when the package that becomes a full package is discharged, an empty bobbin around which the yarn is not wound is set up on a cradle. Then, the yarn is hooked on a bobbin provided to the cradle by a yarn hooking device.

Patent document 1 discloses a yarn hanging device including: a yarn holding section (suction tube of patent document 1) for sucking and holding a yarn fed from an upstream side in a yarn advancing direction; and a yarn hooking member (yarn hooking arm of patent document 1) for hooking the yarn held by the yarn holding portion to the bobbin supported by the pair of bobbin holders. A thread locking part for locking the thread is arranged at the front end of the thread hanging component. The yarn hooking member is movable between a yarn hooking position at which a yarn is hooked to a hook (yarn hooking portion of patent document 1) formed on one of the pair of bobbin holders, and a standby position. The flow from the hooking of the yarn on the bobbin by the yarn hooking device to the winding of the yarn on the bobbin is as follows.

First, the yarn fed from the upstream side is sucked and held by the yarn holding section. At this time, the wire hanging member is located at the standby position. Then, the yarn hanging member is moved from the standby position toward the yarn hanging position. The thread held by the thread holding portion is locked by the thread locking portion in the middle of the thread hanging member reaching the thread hanging position from the standby position. When the yarn hanging component reaches the yarn hanging position, the yarn locked on the yarn locking part is hooked on the hook of the rotating bobbin bracket. Immediately after this, the wire hooked to the hook is cut by a cutter mounted to the cradle. Thereby, the holding of the thread by the thread holding portion is released, and the thread hanging to the hook ends. The thread hooked on the hook becomes a ferrule thread in a region outside the traverse range of the bobbin in a state of being locked to the thread locking portion of the thread hooking member. The purpose of forming the wrapping yarn is to enable the end of the yarn at the start of winding to be taken out when the ends of the yarn of the plurality of packages are joined to each other in the subsequent step. When the formation of the head wire is completed, the wire hanging member moves to the standby position. The thread is separated from the thread locking part in a traverse range in the middle of the thread hanging part returning to the standby position from the thread hanging position. The yarn released from the yarn locking portion is caught by the traverse guide that starts to reciprocate, and traverses along the axial direction of the bobbin. Thereby, the yarn is wound around the bobbin.

Patent document 1: japanese patent laid-open No. 10-194596

However, in the yarn winding device of patent document 1, there is a possibility that a problem of forming a ribbon-like winding on a bobbin occurs. Specifically, in the yarn hanging device of patent document 1, the yarn hanging member is configured to move so that the yarn locking portion passes near the center position of the yarn traverse range, and the yarn is separated from the yarn locking portion near the center position. In this way, during the time from the detachment of the yarn from the yarn locking portion to the arrival of the traverse guide that reciprocates near the central position of the traverse range and the capturing of the yarn, the ribbon winding of the yarn is repeatedly wound at the same position near the central position of the bobbin. Such ribbon winding reduces the unwinding of the yarn from the package.

Accordingly, the present inventors have conducted intensive studies on the following constitution. First, before the traverse guide starts to reciprocate, the thread is released in advance from the thread locking portion of the thread hanging member located at the thread hanging position. Then, a member other than the yarn hanging member is made to hold the yarn so as to wind the yarn around the bobbin outside the traverse range. Next, the thread released from the thread locking portion and held by the other member is caught by traversing the thread guide. In this way, the yarn is not positioned within the traverse range until captured by the traverse guide, and the formation of the ribbon winding can be prevented.

However, in the above-described configuration, there are the following problems when the yarn hanging member is returned from the yarn hanging position to the standby position. When the thread hanging member is supposed to return to the standby position immediately after the thread is released from the thread locking portion, the thread hanging member hooks the thread held by the other members in the middle of returning to the standby position as described later in detail with reference to fig. 14 and 15. Therefore, the thread-hanging member has to be returned to the standby position after the thread is caught by the traverse guide and the thread is detached from the other member. However, in this way, the thread during the traverse may be accidentally locked to the thread locking portion of the thread hanging member in the middle of returning the thread hanging member from the thread hanging position to the standby position. When the yarn hanging member returns to the standby position in a state where the yarn is locked to the yarn locking portion, the yarn locking portion is formed by the yarn traverse fulcrum instead of the original fulcrum. In this way, there is a possibility that the traverse of the yarn by the traverse guide is not performed normally, and the package shape becomes abnormal or a yarn breakage occurs.

Disclosure of Invention

Accordingly, an object of the present invention is to prevent a ribbon winding from being formed on a bobbin and to obtain a package of an appropriate shape when a yarn is wound on the bobbin.

The yarn hooking device according to the present invention is a yarn hooking device for hooking a yarn to a bobbin holder for supporting a bobbin for winding the yarn, the yarn hooking device comprising: a traverse guide that reciprocates in a predetermined movement range along an axial direction of the bobbin holder, thereby traversing the yarn in the predetermined traverse range; a yarn holding unit configured to temporarily hold the yarn; a yarn hooking member having a yarn locking portion for locking the yarn held by the yarn holding portion, the yarn hooking member being movable to reciprocate between a yarn hooking position at which the yarn locked by the yarn locking portion is hooked out of the traverse range of the bobbin; and a control unit configured to control driving of the yarn hooking member and the traverse guide, wherein the yarn locking unit is configured to lock the yarn held by the yarn holding unit in the middle of movement of the yarn hooking member from the standby position to the yarn hooking position, the yarn is separated when the yarn hooking member is positioned at the yarn hooking position, a region where the yarn locking unit contacts the yarn caught by the traverse guide that reciprocates in the predetermined movement range is present on a movement locus between the yarn hooking position and the standby position of the yarn hooking member, the yarn holding unit is configured to release holding of the yarn as the yarn is hooked outside the traverse range of the bobbin, the traverse guide is controlled to move outside the predetermined movement range along the axial direction, and the control unit is configured to control the yarn to move the traverse guide from the yarn hooking position to the outside the predetermined movement range in the axial direction, and to stop the yarn from the yarn hooking position in the traverse guide, and to move the yarn guide is stopped in the predetermined movement range.

In the structure of the present invention, before the traverse guide starts to reciprocate within the predetermined movement range (that is, before the yarn traverses within the predetermined movement range), the yarn is released from the yarn locking portion and caught by the traverse guide when the yarn hooking member is positioned at the yarn hooking position. Therefore, the wire is not positioned in the traverse range until the wire is caught by the traverse guide from the time when the wire is separated from the wire locking portion, and the ribbon winding can be prevented from being formed in the traverse range. However, in such a configuration, if the thread hooking member is to be returned to the standby position immediately after the thread is released from the thread locking portion, the thread hooking member hooks the thread detached from the thread locking portion in the middle of returning to the standby position. Therefore, the yarn hanging member has to be returned to the standby position after the yarn is caught by the traverse guide. For example, in order to avoid contact between the yarn hanging member and the yarn, it is conceivable to reciprocate the traverse guide only in a range where the traverse guide does not contact the yarn hanging member during the period of returning the yarn hanging member to the standby position. However, in this case, the yarn caught by the traverse guide that reciprocates only in a range that does not contact the yarn hanging member is wound only in a partial range of the entire traverse range of the bobbin, and therefore, more yarn than in other ranges is wound in a partial range of the bobbin. That is, during the period of returning the yarn hanging member to the standby position, a part of the package bulges and the shape is damaged. In this regard, in the present invention, the thread hanging member is returned to the standby position so that the thread hanging member does not contact the thread caught by the traverse guide during the reciprocation of the traverse guide within the predetermined movement range. Therefore, even when the yarn hanging member is returned to the standby position, the yarn can be wound over the entire traverse range of the bobbin, and the shape of the package can be prevented from being damaged. Therefore, in the present invention, it is possible to prevent a ribbon winding from being formed on a bobbin when the bobbin is threaded, and to obtain a package of an appropriate shape.

In the yarn hanging device according to the present invention, the yarn hanging member is preferably driven by a 1 st motor.

According to the present invention, the timing of moving the yarn hanging member can be accurately controlled.

In the yarn winding device according to the present invention, the traverse yarn guide is preferably driven by a2 nd motor, and the 1 st motor and the 2 nd motor are preferably controlled by a common control unit.

According to the present invention, it is possible to eliminate time lag in transmission and reception of signals between the control unit for driving the 1 st motor and the control unit for driving the 2 nd motor, and to easily match the operation timings of the traverse guide and the yarn hooking member with high accuracy.

In the yarn threading device according to the present invention, it is preferable that the control unit is capable of switching a moving speed of the traverse guide that reciprocates in the predetermined moving range between a1 st speed and a2 nd speed that is slower than the 1 st speed, and the control unit controls the moving speed of the traverse guide to be the 2 nd speed when moving the yarn threading member to the standby position.

According to the present invention, when the yarn hanging member is returned to the standby position, the moving speed of the traverse guide is reduced. This can increase the time during which the yarn hooking member is not in contact with the yarn caught by the traverse guide. Therefore, even if a time lag for transmitting and receiving a signal for driving the yarn hanging member occurs and the operation timing of the yarn hanging member is deviated when the yarn hanging member is returned to the standby position, the yarn hanging member can be prevented from contacting the yarn caught by the traverse yarn guide.

In the yarn winding device according to the present invention, it is preferable that the control unit sets the moving speed of the traverse guide to the 2 nd speed in an initial period from when the traverse guide reciprocates from one end of the predetermined moving range to when the traverse guide initially reaches the other end of the predetermined moving range in the axial direction of the bobbin holder, and the control unit controls the moving speed of the traverse guide to the 1 st speed in a 2 nd period after the initial period.

When the moving speed of the traverse guide changes, the winding angle of the yarn wound around the bobbin also changes. According to the present invention, the moving speed of the traverse guide that reciprocates in order to traverse the yarn is changed once. Therefore, the winding angle variation portion can be made to be one portion, and the wound shape can be maintained more favorably than the case where there are a plurality of winding angle variation portions.

In the yarn winding device according to the present invention, the control unit preferably moves the yarn winding member to a position not in contact with the yarn and a position midway between the yarn winding position and the standby position before the traverse guide is started to reciprocate within the predetermined movement range.

In the present invention, the yarn hooking member is moved to the intermediate position in advance before the traverse guide is reciprocated within the predetermined movement range. Then, when the traverse guide is reciprocated to traverse the yarn, the yarn hooking member located at the intermediate position is returned to the standby position. Therefore, the time for returning the yarn hanging member to the standby position can be shortened as compared with the case of returning the yarn hanging member from the yarn hanging position to the standby position. Thus, even if the timing of the operation of the yarn hanging member is slightly deviated, the risk of the yarn hanging member rapidly returning to the standby position coming into contact with the yarn caught by the traverse guide can be reduced.

In the yarn hanging device according to the present invention, it is preferable that the control unit calculates a timing of moving the yarn hanging member to the standby position in advance based on a moving speed of the traverse guide and a moving speed of the yarn hanging member.

According to the present invention, the timing of returning the yarn hanging member to the standby position can be calculated in advance based on the moving speed of the traverse guide and the yarn hanging member while taking into consideration the time lag of the transmission and reception of the signal for driving the yarn hanging member. Therefore, the timing of the operation of the yarn hooking member and the traverse guide is less likely to be deviated, and the yarn hooking member can be prevented from contacting the yarn caught by the traverse guide with high accuracy.

In the yarn hanging device according to the present invention, it is preferable that the yarn hanging device further includes a sensor for detecting a position of the traverse guide, and the control unit determines a timing to move the yarn hanging member to the standby position based on the position of the traverse guide detected by the sensor.

According to the present invention, the timing of the operation of the yarn hanging member is determined based on the current position of the traverse guide. Therefore, a complicated arithmetic processing for calculating the operation timing of the yarn hanging member is not required.

In the yarn hanging device according to the present invention, the yarn locking portion is preferably a rod-shaped member.

According to the present invention, the weight of the yarn hanging member is reduced by forming the yarn locking portion as a rod-shaped member. Thus, when the yarn hanging member is to be returned to the standby position by a predetermined driving force, the yarn hanging member can be returned to the standby position promptly as compared with the case where the yarn hanging member is heavy. Thus, the risk of the wire-hanging member coming into contact with the wire caught by the traverse guide can be further reduced.

In the yarn hanging device according to the present invention, the yarn hanging member preferably includes a main body portion to which the yarn locking portion is attached, and the main body portion is made of resin.

According to the present invention, the weight of the yarn hanging member is reduced by making the main body part of resin. Thus, when the yarn hanging member is to be returned to the standby position by a predetermined driving force, the yarn hanging member can be returned to the standby position promptly as compared with the case where the yarn hanging member is heavy. Thus, the risk of the wire-hanging member coming into contact with the wire caught by the traverse guide can be further reduced.

In the yarn hanging device according to the present invention, the yarn hanging member is preferably swingable between the yarn hanging position and the standby position around a rotation axis formed at a base end portion thereof.

According to the present invention, the yarn hanging member can be returned from the yarn hanging position to the standby position promptly by swinging the yarn hanging member.

The yarn hooking device according to the present invention preferably includes a yarn hooking portion formed on the bobbin holder, and when the yarn hooking member is positioned at the yarn hooking position, the yarn locked by the yarn locking portion is hooked by the yarn hooking portion, thereby hooking the yarn outside the traverse range of the bobbin, and the yarn locking portion is configured to disengage the yarn following the yarn hooking to the yarn hooking portion, and the yarn hooking device further includes a yarn wrapping guide that holds the yarn disengaged from the yarn locking portion outside the traverse range, and the yarn wrapping guide is configured to disengage the held yarn from the yarn wrapping guide by capturing the yarn by the traverse guide outside the traverse range before the traverse guide starts to reciprocate within the predetermined range.

In the present invention, the thread hooking portion is provided, so that the thread can be smoothly separated from the thread locking portion. Further, the thread guide is made to hold the thread separated from the thread locking portion outside the traverse range, and the thread is made to form the thread outside the traverse range of the bobbin. After that, before the traverse guide starts to reciprocate within a predetermined movement range, the thread held by the thread guide is caught by the traverse guide outside the predetermined movement range, and the thread is separated from the thread guide. Therefore, the thread which is released from the thread locking portion and held by the thread guide is not located in the traverse range until the thread is caught by the traverse guide, and the tape-like winding can be prevented from being formed in the traverse range.

The false twist processing machine of the present invention is characterized by comprising: a yarn feeding part for feeding yarn; a processing section for performing false twisting processing on the yarn fed from the yarn feeding section; and a winding unit for winding the yarn false twisted by the processing unit, the winding unit including: a winding device for winding the yarn on a bobbin mounted on the bobbin holder to form a package; and a wire hanging device as claimed in any one of the preceding claims.

In the structure of the present invention, before the traverse guide starts to reciprocate within the predetermined movement range (that is, before the yarn traverses within the predetermined movement range), the yarn is released from the yarn locking portion and caught by the traverse guide when the yarn hooking member is positioned at the yarn hooking position. Therefore, the wire is not positioned in the traverse range until the wire is caught by the traverse guide from the detachment of the wire from the wire locking portion, and the ribbon winding can be prevented from being formed in the traverse range. However, in such a configuration, if the thread hooking member is to be returned to the standby position immediately after the thread is released from the thread locking portion, the thread hooking member hooks the thread detached from the thread locking portion in the middle of returning to the standby position. Therefore, the yarn hanging member has to be returned to the standby position after the yarn is caught by the traverse guide. For example, in order to avoid contact between the yarn hanging member and the yarn, it is conceivable to reciprocate the traverse guide only within a range not in contact with the yarn hanging member during the period of returning the yarn hanging member to the standby position. However, in this case, since the yarn caught by the traverse guide that reciprocates only in a range that does not contact the yarn hanging member is wound only in a partial range of the entire traverse range of the bobbin, more yarn is wound in a partial range of the bobbin than in other ranges. That is, during the period of returning the yarn hanging member to the standby position, a part of the package bulges and the shape is damaged. In this regard, in the present invention, the thread hanging member is returned to the standby position so that the thread hanging member does not contact the thread caught by the traverse guide during the reciprocation of the traverse guide within the predetermined movement range. Therefore, even when the yarn hanging member is returned to the standby position, the yarn can be wound over the entire traverse range of the bobbin, and the shape of the package can be prevented from being damaged. Therefore, in the present invention, it is possible to prevent a ribbon winding from being formed on a bobbin when the bobbin is threaded, and to obtain a package of an appropriate shape.

Drawings

Fig. 1 is a schematic side view of the false twist texturing machine according to the present embodiment.

Fig. 2 is a schematic diagram showing the structure of the winding section.

Fig. 3 is a partial perspective view showing a yarn hanging arm mounted near an end of a bobbin of the bobbin holder and positioned at a yarn hanging position.

Fig. 4 is a partial front view of the yarn hanging arm mounted to the bobbin holder near the end of the bobbin and at the yarn hanging position, as seen in the body width direction.

Fig. 5 is a block diagram showing an electrical configuration of the false twist texturing machine.

Fig. 6 is a schematic view showing the winding section when the yarn hanging arm is at the standby position and the yarn is held by the yarn holding section.

Fig. 7 is a schematic view showing a winding portion when the arm moves to the thread hanging position.

Fig. 8 is a partial perspective view showing the vicinity of the end of the bobbin of the yarn locked to the yarn locking portion of the yarn arm when the yarn arm is in the yarn hanging position.

Fig. 9 is a partial perspective view showing the vicinity of the end of the bobbin in the case where the thread is held by the thread guide during the formation of the thread.

Fig. 10 is a schematic view showing a winding portion when the arm moves to a halfway position.

Fig. 11 is a partial perspective view showing the vicinity of the end of the bobbin when the thread is caught by the traverse guide after the end of the wrapping thread formation.

Fig. 12 is a schematic view showing a winding portion when the arm returns to the standby position.

Fig. 13 is a flowchart of the yarn hanging device according to the present embodiment when hanging yarn.

Fig. 14 is a reference diagram showing a winding portion in the case where the yarn arm is moved to the standby position after the yarn is released from the yarn locking portion in the yarn winding device according to the present embodiment.

Fig. 15 is a side view of the winding portion of fig. 14 as viewed from the XV arrow direction.

Description of symbols

1: A false twist processing machine; 2: a yarn feeding part; 3: a processing section; 4: a winding part; 21: a coiling device; 41: a bobbin holder; 41a: hooks (wire hooking portions); 60: a wire hanging device; 61: a thread holding part; 62: a wire arm (wire member); 62a: a wire clamping part; 62c: a main body portion; 64: a control unit; 65: a ferrule thread guide; 72: traversing the wire guide; 89: a wire arm drive motor (motor 1); 90: a traverse guide driving motor (motor 2); bw: a bobbin; m: a prescribed movement range; pw: coiling the package; r: a traversing range; y: a silk thread.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Integral construction of false twisting machine 1)

Fig. 1 is a side view showing a schematic configuration of a false twist machine 1 according to the present embodiment. Hereinafter, the direction perpendicular to the paper surface in fig. 1 is referred to as the machine body longitudinal direction, and the left-right direction is referred to as the machine body width direction. The direction orthogonal to both the longitudinal direction of the machine body and the width direction of the machine body is defined as the vertical direction (vertical direction) in which gravity acts. Hereinafter, the above directional terms will be appropriately used for explanation.

The false twisting machine 1 is configured to be capable of false twisting a yarn Y made of synthetic fibers such as nylon (polyamide-based fibers), for example. The false twisting machine 1 includes a yarn feeding section 2 for feeding the yarn Y, a processing section 3 for false twisting the yarn Y fed from the yarn feeding section 2, and a winding section 4 for winding the yarn Y processed by the processing section 3 around a bobbin Bw. The components of the yarn feeding section 2, the processing section 3, and the winding section 4 are arranged in a plurality in the longitudinal direction of the machine body orthogonal to the running surface (the paper surface of fig. 1) of the yarn on which the yarn path from the yarn feeding section 2 to the winding section 4 through the processing section 3 is arranged.

The yarn feeding section 2 has a creel 7 for holding a plurality of yarn feeding packages Ps, and supplies a plurality of yarns Y to the processing section 3. The processing unit 3 is configured such that a 1 st godet 11, a stop yarn guide 12, a 1 st heating device 13, a cooling device 14, a false twisting device 15, a 2 nd godet 16, a interlacing device 17, a 3 rd godet 18, a 2 nd heating device 19, and a 4 th godet 20 are arranged in this order from the upstream side in the yarn advancing direction. The winding unit 4 winds the yarn Y false twisted by the processing unit 3 around the bobbin Bw by the winding device 21 to form a winding package Pw.

The false twist machine 1 further includes a main body 8 and a winding table 9 arranged at intervals in the machine body width direction. The main body 8 and the winding stand 9 are provided so as to extend substantially the same length in the longitudinal direction of the main body, and are disposed so as to face each other. The upper part of the main body 8 and the upper part of the winding stand 9 are connected by a support frame 10. The respective devices constituting the processing section 3 are mainly mounted on the main body 8 and the support frame 10. A work space 22 for an operator to perform a work such as wire hanging on each device is formed by the main body 8, the winding stand 9, and the support frame 10. The yarn channel is formed so that the yarn Y mainly runs around the working space 22.

The false twist machine 1 has a unit cell called a span including a pair of main bodies 8 arranged to face each other and a winding table 9. In one span, each device is configured to be capable of simultaneously performing false twisting processing on a plurality of filaments Y traveling in a state of being aligned in the machine body length direction. As an example, a total of 12 winding devices 21 of 3 layers and 4 rows are provided on the winding bed 9 included in one span. The false twist machine 1 is configured such that the span is arranged symmetrically left and right on the paper surface with the center line C of the main machine body 8 in the machine body width direction as a symmetry axis (the main machine body 8 is shared by the left and right spans), and a plurality of spans are arranged along the machine body length direction.

(Construction of processing section)

Next, each constituent element of the processing unit 3 will be described. The 1 st godet 11 is configured to convey the yarn Y fed from the yarn feeding section 2 to the 1 st heating device 13. The 1 st godet 11 is disposed above the winding stage 9 (see fig. 1). The 1 st godet 11 is arranged in 1 row in the longitudinal direction of the machine body.

The anti-twist yarn guide 12 is configured to prevent the twist applied to the yarn Y by a false twisting device 15 described later from propagating upstream of the anti-twist yarn guide 12 in the yarn advancing direction. The anti-twist yarn guide 12 is disposed at a position downstream of the 1 st yarn feeding roller 11 in the yarn traveling direction and upstream of the 1 st heating device 13 in the yarn traveling direction. The anti-twist yarn guides 12 are provided independently of each of the plurality of yarns Y fed from the yarn feeding section 2, and are arranged in 1 row in the longitudinal direction of the machine body.

The 1 st heating device 13 is provided in the support frame 10 (see fig. 1) for heating the yarn Y fed from the 1 st godet 11. The 1 st heating device 13 is provided in plural with respect to the plural wires Y supplied from the wire supplying portion 2, and is arranged in 1 row in the longitudinal direction of the machine body.

The cooling device 14 is used for cooling the yarn Y heated by the 1 st heating device 13. The cooling device 14 is disposed at a position downstream of the 1 st heating device 13 in the yarn traveling direction and upstream of the false twisting device 15 in the yarn traveling direction. The cooling device 14 is provided in plural for the plurality of yarns Y supplied from the yarn supplying section 2, and is arranged in 1 row in the longitudinal direction of the machine body.

The false twisting device 15 is a device for twisting the yarn Y. The false twisting device 15 is disposed immediately downstream of the cooling device 14 in the yarn traveling direction. The false twisting device 15 is arranged in plural in the longitudinal direction of the machine body. For example, 12 false twisting devices 15 are provided in one span.

The 2 nd yarn feeding roller 16 is a roller for feeding the yarn Y twisted by the false twisting device 15 toward the interlacing device 17. The 2 nd godet 16 is disposed on the downstream side of the main body 8 in the yarn advancing direction of the false twisting device 15. The feeding speed of the yarn Y by the 2 nd yarn feeding roller 16 is faster than the feeding speed of the yarn Y by the 1 st yarn feeding roller 11. Thus, the yarn Y is stretched between the 1 st godet 11 and the 2 nd godet 16.

The interlacing device 17 is a device for applying interlacing by spraying air to the yarn Y. The winding device 17 is disposed below the 2 nd godet 16 in the main body 8.

The 3 rd godet 18 is a roller for conveying the yarn Y subjected to the interlacing by the interlacing device 17 toward the 2 nd heating device 19. The 3 rd godet 18 is disposed below the winding device 17 in the machine body 8. The 3 rd godet 18 delivers the yarn Y at a slower rate than the 2 nd godet 16 delivers the yarn Y. Thus, the yarn Y is relaxed between the 2 nd and 3 rd godets 16 and 18.

The 2 nd heating device 19 is a device for heating the yarn Y fed from the 3 rd godet 18. The 2 nd heating device 19 is disposed below the 3 rd godet 18 in the main body 8. The 2 nd heating devices 19 extend in the up-down direction, one each being provided in one span.

The 4 th godet 20 is a roller for feeding the yarn Y heat-treated by the 2 nd heating device 19 toward the winding device 21. The 4 th godet 20 is disposed below the winding stage 9. The 4 th godet 20 delivers the yarn Y at a slower rate than the 3 rd godet 18 delivers the yarn Y. Thus, the yarn Y is relaxed between the 3 rd and 4 th godets 18 and 20.

In the processing unit 3 configured as described above, the yarn Y stretched between the 1 st yarn feeding roller 11 and the 2nd yarn feeding roller 16 is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates to the anti-twist yarn guide 12, but does not propagate upstream of the anti-twist yarn guide 12 in the yarn advancing direction. The yarn Y twisted while being stretched is heated by the 1 st heating device 13 and heat-set, and then cooled by the cooling device 14. The yarn Y is untwisted downstream of the false twisting device 15, but the above-described heat setting maintains the state in which each filament is false twisted in a wavy form. The yarn Y after false twisting by the false twisting device 15 is wound by the winding device 17 while being loosened between the 2nd yarn feeding roller 16 and the 3rd yarn feeding roller 18, and is guided downstream in the yarn advancing direction. Further, the yarn Y is heat-set by the 2nd heating device 19 while being relaxed between the 3rd godet 18 and the 4 th godet 20. Finally, the yarn Y fed from the 4 th godet 20 is wound by the winding device 21 to form a winding package Pw.

(Constitution of winding portion 4)

The winding section 4 has a plurality of winding devices 21. The winding device 21 is a device for winding the yarn Y fed from the 4 th godet 20 around the bobbin Bw to form a winding package Pw. As shown in fig. 2, the winding device 21 includes a pair of cradle arms 40, a contact roller 50, and a wire hanging device 60.

The pair of cradle arms 40 is configured to be capable of holding the bobbin Bw. Specifically, each of the pair of cradle arms 40 has a bobbin holder 41 for rotatably holding the bobbin Bw. Both ends of the bobbin Bw are rotatably supported by the cradle arms 40 via bobbin holders 41. That is, the bobbin Bw is mounted in a state of being sandwiched by the pair of bobbin holders 41. A hook 41a (yarn hooking portion of the present invention) for hooking the yarn Y to the bobbin Bw is formed on the bobbin holder 41 on one side in the machine body longitudinal direction (see fig. 3 and 4). Further, a cutter 40a is provided to one cradle arm 40 of the pair of cradle arms 40 in the longitudinal direction of the machine body. One side in the longitudinal direction of the machine body is a side close to a yarn hanging position of a yarn hanging arm 62 described later, and is the right side of the drawing sheet of fig. 2. The cutter 40a is formed in a portion of the cradle arm 40 opposite to a side where a traverse guide 72 (described later) is disposed in the body width direction.

The contact roller 50 is configured to be driven to rotate in a predetermined direction while being in contact with the circumferential surface of the bobbin Bw or the winding package Pw, and thereby can rotate the bobbin Bw to wind the yarn Y. The contact roller 50 is driven by a package driving motor 88 (see fig. 5). The contact roller 50 of each winding device 21 is driven simultaneously by a package driving motor 88 common to a plurality of spindles. The contact rollers 50 may be driven by a package driving motor 88 provided for each spindle. The package driving motor 88 is, for example, a stepping motor or a servo motor.

(Constitution of filament hanging device 60)

The yarn hooking device 60 is a device for hooking the yarn Y to the bobbin Bw mounted in a state of being sandwiched by the pair of bobbin holders 41. The yarn hooking device 60 includes a yarn holding portion 61, the hook 41a, a yarn hooking arm 62 (corresponding to a yarn hooking member of the present invention), a traverse 63, a control portion 64, and a yarn threading guide 65.

As shown in fig. 6, the yarn holding portion 61 temporarily attracts and holds the yarn Y fed from the 4 th godet 20. The yarn holding portion 61 is connected to a negative pressure source, and is configured to be capable of sucking the yarn Y. The thread holding portion 61 is configured to release the holding of the thread Y in response to the thread being hung outside a traverse range r of a bobbin Bw described later. The specific configuration in which the holding of the yarn Y is released will be described in the portion of the yarn hanging operation described later.

As shown in fig. 2 and 3, the yarn hanging arm 62 includes a yarn locking portion 62a for locking the yarn Y sucked and held by the yarn holding portion 61, and a main body portion 62c to which the yarn locking portion 62a is attached. The main body 62c is a resin member. The wire hanging arm 62 is movable between a wire hanging position (the position of the wire hanging arm 62 in fig. 7) for hanging a wire to the hook 41a and a standby position (the position of the wire hanging arm 62 in fig. 2 and 6). The yarn hanging arm 62 is formed at a base end portion of the main body portion 62c, and is rotatable about a rotation axis 62b along the vertical direction, thereby being movable between a yarn hanging position and a standby position. More specifically, the yarn hanging arm 62 is swingable about the rotation shaft 62b to reciprocate between the yarn hanging position and the standby position. The description will be made of "swing in … … to and fro" with reference to fig. 6 and 7, in which when the wire arm 62 is moved from the standby position (position of fig. 6) toward the wire hanging position (position of fig. 7), the wire arm 62 swings clockwise about the rotation shaft 62b when viewed from above. When the wire arm 62 is moved from the wire hanging position (position in fig. 7) to the standby position (position in fig. 6), the wire arm 62 swings counterclockwise about the rotation shaft 62b when viewed from above. The standby position is a position of the yarn hanging arm 62 where the yarn hanging arm 62 does not contact the yarn Y from the 4 th yarn feeding roller 20 to the yarn holding portion 61, and where the yarn hanging arm 62 does not contact the yarn Y traversed by the traverse guide 72. The arm 62 is driven by an arm drive motor 89 (motor 1 of the present invention, see fig. 5). The arm drive motor 89 is, for example, a stepping motor or a servo motor.

The wire clip portion 62a is formed at a front end portion of the main body portion 62c of the wire hanging arm 62. The wire locking portion 62a is, for example, a rod-shaped member made of metal. The wire locking portion 62a may not be made of metal. The yarn locking portion 62a is configured to lock the yarn Y held by the yarn holding portion 61 while the yarn arm 62 is moving from the standby position to the yarn hanging position, and to disengage the yarn Y as the yarn is hung on the hook 41a when the yarn arm 62 is positioned at the yarn hanging position. Specifically, as shown in fig. 4, the wire locking portion 62a includes a1 st portion 62a1 and a2 nd portion 62a2. The 1 st portion 62a1 and the 2 nd portion 62a2 of the yarn locking portion 62a are portions for locking the yarn Y held by the yarn holding portion 61 in the middle of the movement of the yarn arm 62 from the standby position to the yarn hanging position. The 2 nd portion 62a2 of the thread locking portion 62a is a portion from which the thread Y is separated as the thread is hung on the hook 41a when the thread hanging arm 62 is positioned at the thread hanging position. Specifically, the 2 nd portion 62a2 is inclined downward from the support portion 95 that supports the wire Y from below, and the wire Y moves along the support portion 95 that is inclined downward by the downward force, whereby the wire Y is detached from the 2 nd portion 62a2. The 1 st portion 62a1 is disposed closer to the yarn Y sucked and held by the yarn holding section 61 than the 2 nd portion 62a2 when the yarn hanging arm 62 is in the standby position. In other words, the 2 nd portion 62a2 is disposed closer to the traverse range r (see fig. 6) than the 1 st portion 62a1 when the arm 62 is in the yarn hanging position.

The traverse device 63 traverses the yarn Y wound around the bobbin Bw in the traverse range r along the longitudinal direction of the machine body (the axial direction of the bobbin holder 41). The traverse range r is a range in which the yarn Y can be wound around the circumferential surface of the bobbin Bw in the axial direction of the bobbin Bw. Specifically, the traverse device 63 includes an endless timing belt 71 disposed near the contact roller 50, and a traverse guide 72 fixed to the timing belt 71. The timing belt 71 is stretched over driven pulleys 81 and 82 provided at both ends in the direction in which the traverse guide 72 reciprocates, and a drive pulley 83 driven by a traverse guide drive motor 90 (motor 2 of the present invention). By driving the traverse guide drive motor 90, the rotational force of the drive pulley 83 is transmitted to the timing belt 71, and the traverse guide 72 fixed to the timing belt 71 reciprocates between the driven pulley 81 and the driven pulley 82. The traverse guide driving motor 90 is, for example, a stepping motor or a servo motor. By rotating the drive pulley 83 clockwise and counterclockwise, the traverse guide 72 is thereby reciprocated. The traverse guide 72 reciprocates in a predetermined movement range M along the longitudinal direction of the machine body, whereby the yarn Y can be traversed in a traverse range r. The predetermined movement range M is a movement range of the traverse guide 72 corresponding to the traverse range r among the ranges in which the traverse guide 72 can reciprocate along the longitudinal direction of the machine body. In the present embodiment, the traverse guide 72 is configured to be able to catch the yarn Y when moving from one side (right side in fig. 2) to the other side (left side in fig. 2) in the longitudinal direction of the machine body, and is not able to catch the yarn Y when moving from the other side to the one side in the longitudinal direction of the machine body. The traverse guide 72 can move along the longitudinal direction of the machine body to the outside of the predetermined movement range M.

As shown in fig. 2, for example, the false twist processing machine 1 of the present embodiment includes a traverse fulcrum wire guide 100 and a guide body 101 between the 4 th godet 20 and the winding device 21. As shown in fig. 2, the yarn Y fed by the 4 th godet 20 is fed to the winding device 21 while being guided by the traverse fulcrum guide 100 and the guide body 101, and wound around the bobbin Bw while being traversed by the traverse guide 72.

In the yarn threading device 60 of the present embodiment, a region where the yarn thread locking portion 62a contacts the yarn Y caught by the traverse yarn guide 72 that reciprocates within the predetermined movement range M exists on the movement locus between the yarn threading position and the standby position of the yarn threading arm 62. In other words, when the yarn hanging arm 62 is positioned at a predetermined position between the yarn hanging position and the standby position, the yarn locking portion 62a can be brought into contact with the yarn Y caught by the traverse guide 72 that reciprocates within the predetermined movement range M. The case where the yarn wire locking portion 62a contacts the yarn Y caught by the traverse guide 72 will be described in detail later with reference to fig. 14 and 15.

The thread guide 65 holds the thread Y separated from the thread locking portion 62a so as to be maintained at the thread forming position x (see fig. 2 and the like) which is the outside of the traverse range r of the bobbin Bw. The wrapping yarn forming position x is a position at which the yarn Y forms a wrapping yarn and is mounted outside the traverse range r of the bobbin Bw of the bobbin holder 41. The purpose of forming the wrapping yarn is to enable the end of the yarn Y from which winding starts to be taken out when the ends of the yarn Y of the plurality of winding packages Pw are joined to each other in the subsequent step.

As shown in fig. 3 and 4, the wire guide 65 is, for example, a rod-shaped member that extends in the longitudinal direction of the machine body and is curved. The toe guide 65 is disposed below the yarn hanging arm 62 at the yarn hanging position. The ferrule thread guide 65 has: a holding portion 65a for holding the yarn Y while restricting the movement of the yarn Y within the traverse range r; and a guide portion 65b that guides the yarn Y detached from the yarn locking portion 62a to the holding portion 65a. As shown in fig. 4, the guide portion 65b is located on the side of the traverse range r than the holding portion 65a in the machine body length direction. Further, a part of the guide portion 65b is arranged on the wire passage of the wire Y from the traverse fulcrum guide 100 toward the hook 41 a. In other words, a part of the guide portion 65b is arranged on the yarn path on the upstream side of the hook 41a in the yarn traveling direction of the yarn Y hooked to the hook 41 a.

The holding portion 65a includes: the inclined portion 65a1 is inclined downward in a direction from the traverse range r in the longitudinal direction of the machine body toward the toe forming position x; and a horizontal portion 65a2 extending horizontally along the longitudinal direction of the machine body. The inclined portion 65a1 is integrally formed with the horizontal portion 65a 2. The inclined portion 65a1 is a portion for restricting movement of the yarn Y in the traverse range r, and the horizontal portion 65a2 is a portion for holding the yarn Y at a predetermined height. The predetermined height is a height at which the traverse guide 72 is likely to catch the yarn Y when moving along the longitudinal direction of the machine body. The predetermined height is a height at which the yarn Y held by the horizontal portion 65a2 does not contact other members of the winding device 21. The yarn Y is prevented from moving to a position lower than a prescribed height by the horizontal portion 65a 2.

The ferrule thread guide 65 is disposed at a position where the thread path of the thread Y held by the holding portion 65a intersects with the moving track of the traverse thread guide 72. The holding portion 65a is integrally formed with the guide portion 65 b. The guide portion 65b is inclined downward in a direction from the traverse range r in the longitudinal direction of the machine body toward the toe forming position x. In the present embodiment, the inclination angle of the inclined portion 65a1 with respect to the horizontal plane is larger than the inclination angle of the guide portion 65b with respect to the horizontal plane. The movement of the yarn Y held by the horizontal portion 65a2 in the traverse range r is restricted by the inclined portion 65a1 having a large inclination angle with respect to the horizontal plane.

As shown in fig. 4, a part of the guide portion 65b is located closer to the traverse range r than the wire locking portion 62a of the wire arm 62 located at the wire hanging position. The toe yarn guide 65 is disposed closer to the bobbin holder 41 than the traverse yarn guide 72 in the yarn advancing direction in which the yarn Y advances. That is, the wire guide 65 is disposed closer to the bobbin holder 41 than the traverse wire guide 72 in the body width direction.

As shown in fig. 5, the control unit 64 performs drive control of a package drive motor 88, a yarn hooking arm drive motor 89, and a traverse guide drive motor 90. The control unit 64 controls the drive timings of the arm drive motor 89 and the traverse guide drive motor 90 based on a signal transmitted from a rotational speed detection sensor (not shown) that monitors the rotational speed of the bobbin holder 41. Specifically, when the rotational speed detection sensor detects that the rotational speed of the bobbin holder 41 reaches the target value, the control unit 64 drives the yarn hooking arm drive motor 89 and the traverse guide drive motor 90 at appropriate timings, respectively, to start yarn hooking operation. The rotation speed detection sensor includes, for example, a magnet attached to a part of the bobbin holder 41, and a magnetic sensor attached to the cradle arm 40. The rotation speed detection sensor detects a magnetic cycle generated from the magnet rotating with the rotation of the bobbin holder 41 by the magnetic sensor, thereby monitoring the rotation speed of the bobbin holder 41. The details of the control of the arm drive motor 89 and the traverse guide drive motor 90 by the control unit 64 will be described in the section of the description of the yarn hanging operation to be described later. The control unit 64 may be common to the winding devices 21, or may be provided for each winding device 21. The control unit 64 for controlling the drive of the package drive motor 88 may be configured differently from the control unit for controlling the drive of the arm drive motor 89 and the traverse guide drive motor 90.

(Action of hanging wire)

Next, a series of operations from hooking the yarn Y to the hook 41a by the yarn hooking device 60 to winding the yarn around the bobbin Bw by traversing the yarn guide 72 will be described below with reference to fig. 5 to 13. Fig. 13 is a flowchart of the yarn hanging device 60 for yarn hanging. In the yarn hanging operation, an empty bobbin Bw of the unreeled yarn Y is supported by the pair of bobbin holders 41.

First, the control unit 64 drives the package drive motor 88 to rotate the contact roller 50 so as to integrally rotate the bobbin Bw and the bobbin holder 41 (step S1). Next, the control unit 64 controls the arm drive motor 89 so that the arm 62 is positioned at the standby position (step S2). The order of steps S1 and S2 may be reversed or may be executed simultaneously. In a state where the yarn hanging arm 62 is located at the standby position, the yarn Y fed from the 4 th yarn feeding roller 20 is sucked and held by the yarn holding section 61 (see fig. 6).

Next, the control unit 64 makes the traverse guide 72 stand by outside the predetermined movement range M (i.e., right side of the paper surface in fig. 6) in the longitudinal direction of the machine body (step S3). That is, the control unit 64 causes the traverse guide 72 to stand by outside the predetermined movement range M before the yarn hanging arm 62 starts to move from the standby position to the yarn hanging position. The position at which the traverse guide 72 is to be standby is set in advance and stored in the control unit 64, for example. The position at which the traverse guide 72 is made to stand by is usually a position near the wire wrapping guide 65.

When the rotational speed of the bobbin holder 41 reaches the target value detected by the rotational speed detection sensor (not shown), the control unit 64 drives the yarn hanging arm driving motor 89 to move the yarn hanging arm 62 from the standby position to the yarn hanging position around the rotation shaft 62b (step S4). The yarn Y sucked and held by the yarn holding section 61 is locked to the 1 st portion 62a1 and the 2 nd portion 62a2 of the yarn locking section 62a in the middle of the movement of the yarn hanging arm 62 from the standby position to the yarn hanging position.

The structure in which the yarn Y is locked to the yarn locking portion 62a will be specifically described. First, in the middle of the movement of the yarn hanging arm 62 from the standby position to the yarn hanging position, the 1 st portion 62a1 contacts with a portion of the yarn Y sucked and held by the yarn holding portion 61 on the upstream side of the yarn holding portion 61 in the yarn advancing direction. Then, after the 1 st portion 62a1 is contacted with the wire Y, the wire arm 62 is further moved toward the wire hanging position, whereby the wire Y is caught by the 1 st portion 62a1. Further, the yarn Y locked to the 1 st portion 62a1 is locked to both the 1 st portion 62a1 and the 2 nd portion 62a2 while the yarn arm 62 reaches the yarn hanging position. At this time, the yarn Y is pulled up between the 1 st portion 62a1 and the 2 nd portion 62a2 (see fig. 8). The end of the yarn Y locked to the yarn locking portion 62a on the downstream side in the yarn advancing direction is sucked and held by the yarn holding portion 61 (see fig. 7).

As shown in fig. 8, when the yarn hanging arm 62 reaches the yarn hanging position, the portion of the yarn Y that is pulled up between the 1 st portion 62a1 and the 2 nd portion 62a2 is hooked to the hook 41a of the bobbin holder 41 that rotates in the solid arrow direction of fig. 8. Then, the yarn Y hooked to the hook 41a is wound around the end of the bobbin Bw by the rotation of the bobbin Bw. The end of the bobbin Bw is outside the traverse range r. At this time, the yarn Y hooked on the hook 41a and locked to the 2 nd portion 62a2 is pulled downward by the rotation of the bobbin holder 41, moves downward along the support portion 95 inclined downward, and is separated from the 2 nd portion 62a 2. That is, in the present embodiment, the 2 nd portion 62a2 is configured such that the yarn Y is detached as the yarn Y is hooked to the hook 41a formed in the bobbin holder 41. The yarn Y detached from the 2 nd portion 62a2 is guided to the holding portion 65a along the tilting movement of the guide portion 65b after being brought into contact with the guide portion 65b of the wire guide 65. Then, as shown in fig. 9, the yarn Y is held by the holding portion 65a to be maintained at the head yarn forming position x of the bobbin Bw.

The yarn Y, which is detached from the 2 nd portion 62a2 and held by the yarn guide 65, is in the following state: the portion on the upstream side in the wire advancing direction of the hook 41a is held by the ferrule wire guide 65, and the portion on the downstream side in the wire advancing direction of the hook 41a is locked to the 1 st portion 62a1. In this state, the bobbin holder 41 is further rotated, whereby the yarn Y hooked to the hook 41a is guided to a position of the cutter 40a provided on the rocker arm 40, and is cut by the cutter 40 a. The yarn Y of the yarn Y cut by the cutter 40a on the downstream side in the yarn advancing direction from the cutter 40a is sucked and collected by the yarn holding section 61. Thereby, the holding of the yarn Y by the yarn holding portion 61 is released.

As described above, the bobbin Bw and the bobbin holder 41 are integrally rotated in a state where the yarn Y is held by the yarn threading guide 65, and thereby the yarn threading is formed at the yarn threading position x (step S5).

When the toe cap is formed, the control unit 64 drives the arm drive motor 89 to move the arm 62 to the intermediate position (the arm position in fig. 10) (step S6). The intermediate position is a position where the yarn hanging arm 62 does not contact the yarn Y held by the yarn guide 65, and is a position between the yarn hanging position and the standby position. The intermediate position is preferably as close to the standby position as possible, and for example, as shown in fig. 10, the arm 62 is rotated counterclockwise by about 60 degrees from the standby position around the rotation axis 62b when viewed from the vertical direction.

When the formation of the wrapping yarn ends, the control unit 64 drives the traverse guide drive motor 90 to start the traverse guide 72 waiting outside the predetermined movement range M to reciprocate within the predetermined movement range M (step S7). In other words, in step S7, the control unit 64 controls the traverse guide 72 to move outside the predetermined movement range M in the longitudinal direction of the machine body, causes the traverse guide 72 to capture the yarn Y separated from the yarn locking portion 62a via the yarn threading guide 65, and then causes the traverse guide 72 to reciprocate within the predetermined movement range M. The time until the end of the formation of the wire is set in advance, for example, and stored in the control unit 64. As shown in fig. 11, the traverse guide 72, which starts the reciprocation, captures the yarn Y held by the wire wrapping guide 65 before starting the reciprocation within the predetermined movement range M. Then, the wire Y caught by the traverse guide 72 is detached from the guide portion 65b after the tilting movement along the tilting portion 65a1 of the holding portion 65a and the guide portion 65b (refer to fig. 4) with the further movement of the traverse guide 72. That is, the thread guide 65 is configured such that the held thread Y is caught by the traverse guide 72 outside the predetermined movement range M and is separated from the thread guide 65 before the traverse guide 72 starts to reciprocate within the predetermined movement range M.

Here, the control unit 64 can switch the movement speed of the traverse guide 72 that reciprocates in the predetermined movement range M between the 1 st speed and the 2 nd speed. The 1 st speed is a moving speed of the traverse guide 72 when the yarn Y traverses in the traverse range r in order to wind the yarn Y around the bobbin Bw. The 1 st speed is a value that varies according to the winding speed, winding angle, winding tension, and the like of the yarn Y onto the bobbin Bw. Speed 2 is a slower speed than speed 1, for example, one third of speed 1. The control unit 64 controls the traverse guide 72 so that the movement speed of the traverse guide 72 is 2 nd in an initial period from the end of one side (right side of the drawing sheet in fig. 2) of the predetermined movement range M in the machine body longitudinal direction to the end of the other side (left side of the drawing sheet in fig. 2) of the predetermined movement range M in the machine body longitudinal direction. In other words, the control unit 64 sets the speed of movement of the traverse guide 72 to the 2 nd speed in the 1 st forward path of the traverse guide 72 within the predetermined movement range M.

As shown in fig. 12, the control unit 64 moves the yarn hanging arm 62 to the standby position when the traverse guide 72 moves within the predetermined movement range M at the 2 nd speed and when the yarn Y caught by the traverse guide 72 does not exist on the movement locus between the yarn hanging position and the standby position of the yarn hanging arm 62 (step S9, see the solid arrow in fig. 12). In other words, the control unit 64 sets the movement speed of the traverse guide 72 to the 2 nd speed so that the yarn Y caught by the traverse guide 72, which reciprocates in the predetermined movement range M, does not contact the yarn hanging arm 62 when the yarn hanging arm 62 is moved to the standby position. In step S9, the control unit 64 calculates in advance the timing of moving the arm 62 to the standby position. Specifically, the control unit 64 calculates in advance the timing of moving the wire arm 62 to the standby position based on the moving speed of the traverse guide 72 and the moving speed of the wire arm 62.

The control unit 64 controls the traverse guide 72 to move at the 1 st speed in the 2 nd period after the initial period of moving the traverse guide 72 at the 2 nd speed (step S10). Here, the 2 nd period is, for example, a period from the end of the initial period to the formation of the full-wound package Pw.

The traverse guide 72 holding the yarn Y repeatedly reciprocates within the predetermined movement range M at the 1 st speed, whereby the yarn Y is wound around the bobbin Bw to form a full-wound package Pw. Thereby, the winding operation of the yarn Y is ended. When the winding operation of the yarn Y is completed, after the rotation of the bobbin Bw is stopped, the winding package Pw having been fully wound is discharged from the rocker arm 40 to a package storage unit, not shown, and the empty bobbin Bw is again set on the rocker arm 40. Then, the steps S1 to S10 are executed again. The discharge operation of the winding package Pw from the cradle arm 40 and the installation operation of the empty bobbin Bw to the cradle arm 40 are not described.

(Effect)

The yarn winding device 60 of the present embodiment includes a yarn holding portion 61 that temporarily holds the yarn Y, a yarn winding arm 62 having a yarn locking portion 62a, a traverse guide 72, and a control portion 64. The yarn locking portion 62a is configured to lock the yarn Y held by the yarn holding portion 61 while the yarn arm 62 is moving from the standby position to the yarn hanging position, and to disengage the yarn Y when the yarn arm 62 is positioned at the yarn hanging position. In the yarn threading device 60, there is a region where the yarn thread locking portion 62a contacts the yarn Y caught by the traverse yarn guide 72 that reciprocates within the predetermined movement range M on the movement locus between the yarn threading position and the standby position of the yarn threading arm 62. The thread holding portion 61 is configured to release the holding of the thread Y with the thread being caught outside the traverse range r of the bobbin Bw. The traverse guide 72 can move along the longitudinal direction of the machine body to the outside of the predetermined movement range M. The control unit 64 controls the traverse guide 72 to move outside a predetermined movement range M in the longitudinal direction of the machine body, so that the traverse guide 72 captures the yarn Y separated from the yarn locking portion 62a, and then, the traverse guide 72 is reciprocated within the predetermined movement range M. The control unit 64 controls the traverse guide 72 to move the yarn hanging arm 62 to the standby position when the yarn Y caught by the traverse guide 72 does not exist on the moving trajectory between the yarn hanging position and the standby position of the yarn hanging arm 62 while the traverse guide 72 reciprocates within the predetermined moving range M.

The false twisting machine 1 of the present embodiment includes a yarn feeding section 2 for feeding the yarn Y, a processing section 3 for false twisting the yarn Y fed from the yarn feeding section 2, and a winding section 4 for winding the yarn Y after false twisting by the processing section 3. The winding unit 4 includes a winding device 21 for winding the yarn Y around the bobbin Bw attached to the bobbin holder 41 to form a winding package Pw, and a yarn hanging device 60.

In the structure of the present embodiment, before the traverse guide 72 starts to reciprocate within the predetermined movement range M (that is, before the yarn Y traverses within the predetermined traverse range r), when the yarn arm 62 is positioned at the yarn hanging position, the yarn Y is separated from the yarn locking portion 62a and captured by the traverse guide 72 via the yarn package guide 65. Therefore, the yarn Y does not fall within the traverse range r until the yarn Y is caught by the traverse guide 72 after being separated from the yarn locking portion 62a, and the ribbon winding can be prevented from being formed within the traverse range r. However, in such a configuration, if the arm 62 is returned to the standby position immediately after the yarn Y is released from the yarn locking portion 62a, the arm 62 hooks the yarn that is released from the yarn locking portion 62a and held by the yarn package guide 65 while being in the middle of the return to the standby position.

This will be described in detail with reference to fig. 14 and 15. First, when the yarn arm 62 reaches the yarn hanging position by the operation of step S4 of the present embodiment, the yarn Y is released from the yarn locking portion 62a and held by the yarn toe yarn guide 65. When the yarn arm 62 is returned to the standby position immediately after this, the yarn locking portion 62a hooks the yarn Y held by the ferrule yarn guide 65 in the middle of the yarn arm 62 returning from the yarn hanging position to the standby position. Specifically, as shown in fig. 14 and 15, the thread Y held by the thread guide 65 is caught by the thread catching portion 62a in the middle of returning to the standby position at a position upstream of the thread guide 65 in the thread advancing direction. This is for the following reason. That is, as shown in fig. 15, in the structure of the yarn hanging device 60 of the present embodiment, the yarn locking portion 62a is located below as the yarn hanging arm 62 moves from the yarn hanging position to the standby position. Then, as shown in fig. 15, when the yarn hanging arm 62 is positioned at a predetermined position between the yarn hanging position and the standby position, the position of a part of the yarn locking portion 62a in the up-down direction is the same as the position of the yarn Y running between the yarn threading guide 65 and the traverse fulcrum guide 100 in the up-down direction. Thereby, the yarn Y held by the yarn guide 65 is caught by the yarn locking portion 62a. When the yarn arm 62 returns to the standby position with the yarn Y locked to the yarn locking portion 62a, the yarn locking portion 62a is formed by the traverse fulcrum of the yarn Y instead of the original fulcrum (traverse fulcrum guide 100). In this way, the traverse guide 72 cannot normally traverse the yarn Y, and the winding package Pw becomes abnormal in shape or causes yarn breakage.

Therefore, the yarn Y has to be caught by the traverse guide 72 and the yarn Y is separated from the ferrule yarn guide 65, and then the yarn arm 62 is returned to the standby position. However, the following problems may occur also for the yarn Y in the state of being caught by the traverse guide 72: the thread locking portion 62a hooks the thread Y in the middle of the return of the thread hanging arm 62 from the thread hanging position to the standby position. The reason for this is that when the yarn hanging arm 62 is located at a predetermined position between the yarn hanging position and the standby position, the position of a part of the yarn locking portion 62a in the up-down direction is the same as the position of the yarn Y traveling between the traverse guide 72 and the traverse fulcrum guide 100 in the up-down direction. Accordingly, in the yarn threading device 60, there is a region where the yarn thread locking portion 62a contacts the yarn Y caught by the traverse yarn guide 72 that reciprocates in the predetermined movement range M on the movement locus between the yarn threading position and the standby position of the yarn threading arm 62. Accordingly, depending on the position of the traversed yarn Y in the longitudinal direction of the machine body, the yarn Y caught by the traverse guide 72 may be locked to the yarn locking portion 62 a. Therefore, for example, in order to avoid the contact between the yarn arm 62 and the yarn Y caught by the traverse guide 72, it is conceivable that the traverse guide 72 is reciprocated only within a range not in contact with the yarn arm 62 during the return of the yarn arm 62 to the standby position. However, in this case, the yarn Y caught by the traverse guide 72 that reciprocates only in a range that is not in contact with the yarn hanging arm 62 is wound only in a partial range of the entire traverse range r of the bobbin Bw, and therefore, more yarn Y than other ranges is wound in a partial range of the bobbin Bw. That is, during the period of returning the arm 62 to the standby position, a part of the winding package Pw bulges and the shape is damaged. In this regard, in the present embodiment, after the traverse guide 72 starts to reciprocate within the predetermined movement range M, the yarn hanging arm 62 is returned to the standby position so that the yarn hanging arm 62 does not come into contact with the yarn Y caught by the traverse guide 72. Therefore, when the arm 62 is returned, the yarn Y can be wound over the entire traverse range r of the bobbin Bw, and the shape of the winding package Pw can be prevented from being damaged. Therefore, in the present embodiment, it is possible to prevent the winding of the bobbin Bw in a ribbon shape from being formed when the bobbin Bw is wound, and to obtain the winding package Pw having an appropriate shape.

In the yarn hanging device 60 of the present embodiment, the yarn hanging arm 62 is driven by the yarn hanging arm driving motor 89. Accordingly, the timing of moving the arm 62 can be accurately controlled.

In the yarn threading device 60 of the present embodiment, the traverse guide 72 is driven by the traverse guide drive motor 90, and the yarn threading arm drive motor 89 and the traverse guide drive motor 90 are controlled by the common control unit 64. Accordingly, time lag in transmission and reception of signals between the control unit 64 for driving the arm drive motor 89 and the control unit 64 for driving the traverse guide drive motor 90 can be eliminated, and the operation timings of the traverse guide 72 and the arm 62 can be easily matched with each other with high accuracy.

In the yarn threading device 60 of the present embodiment, the control unit 64 can switch the moving speed of the traverse guide 72 that reciprocates in the predetermined moving range M between the 1 st speed and the 2 nd speed that is slower than the 1 st speed, and the control unit 64 controls the moving speed of the traverse guide 72 to be the 2 nd speed when the yarn threading arm 62 is moved to the standby position. Accordingly, when the yarn hanging arm 62 is returned to the standby position, the moving speed of the traverse guide 72 is reduced. This can increase the time during which the yarn hanging arm 62 is not in contact with the yarn Y caught by the traverse guide 72. Therefore, even if a time lag for transmitting and receiving a signal for driving the arm 62 occurs and the timing of the operation of the arm 62 is deviated when the arm 62 is returned to the standby position, the arm 62 can be prevented from coming into contact with the yarn Y caught by the traverse guide 72.

Further, in the yarn threading device 60 of the present embodiment, the control unit 64 sets the moving speed of the traverse guide to the 2 nd speed during the initial period from the reciprocation of the traverse guide 72 in the longitudinal direction of the machine body from the one end of the predetermined moving range M to the first arrival at the other end of the predetermined moving range M. Then, the control unit 64 controls the speed of movement of the traverse guide 72 to be 1 st speed in the 2 nd and subsequent periods of the initial period. When the moving speed of the traverse guide 72 changes, the winding angle of the yarn Y wound around the bobbin Bw also changes. According to the present embodiment, the moving speed of the traverse guide 72 that reciprocates to traverse the yarn Y is changed once. Therefore, the winding angle can be changed to one position, and the shape of the wound package Pw can be maintained more favorably than in the case where there are a plurality of positions at the winding angle change position.

In the yarn threading device 60 of the present embodiment, the control unit 64 moves the yarn threading arm 62 to a position not in contact with the yarn Y, and to a position intermediate between the yarn threading position and the standby position, before the traverse guide 72 starts to reciprocate within the predetermined movement range M. In the present embodiment, before the traverse guide 72 is reciprocated within the predetermined movement range M, the arm 62 is moved to the intermediate position in advance. Then, when the traverse guide 72 is reciprocated to traverse the yarn Y, the yarn hanging arm 62 positioned at the intermediate position is returned to the standby position. Therefore, the time for returning the arm 62 to the standby position can be shortened as compared with the case where the arm 62 is returned from the yarn hanging position to the standby position. Thus, even if the timing of the operation of the yarn hanging arm 62 is slightly deviated, the risk of the yarn hanging arm 62 quickly returning to the standby position coming into contact with the yarn Y caught by the traverse guide 72 can be reduced.

In the yarn threading device 60 of the present embodiment, the control unit 64 calculates the timing of moving the yarn threading arm 62 to the standby position in advance based on the moving speed of the traverse guide 72 and the moving speed of the yarn threading arm 62. Accordingly, the timing of returning the arm 62 to the standby position can be calculated in advance based on the speed of movement of the traverse guide 72 and the arm 62 while taking into account the time lag of the transmission and reception of the signal for driving the arm 62. Therefore, the timing of the operation of the yarn hanging arm 62 and the traverse guide 72 is less likely to be deviated, and the yarn hanging arm 62 can be prevented from contacting the yarn Y caught by the traverse guide 72 with high accuracy.

In the yarn hanging device 60 according to the present embodiment, the yarn locking portion 62a is a rod-shaped member. Accordingly, the weight of the arm 62 is reduced by making the wire locking portion 62a rod-like member, that is, a thin member. Thus, when the arm 62 is to be returned to the standby position by a predetermined driving force, the arm 62 can be returned to the standby position more quickly than when the arm 62 is heavy. Therefore, the risk of the wire arm 62 coming into contact with the wire Y caught by the traverse guide 72 can be further reduced. Further, the wire locking portion 62a that can lock the wire Y can be formed by simply bending the rod-shaped member, and the processing is easy. The wire locking portion 62a is preferably a cylindrical rod-shaped member. Accordingly, since the cross section of the yarn locking portion 62a is curved, the yarn Y locked to the yarn locking portion 62a is less likely to be damaged, and the quality of the yarn Y can be prevented from being degraded

Further, in the yarn hanging device 60 of the present embodiment, the yarn hanging arm 62 includes a main body portion 62c to which the yarn locking portion 62a is attached, and the main body portion 62c is made of resin. Accordingly, the weight of the arm 62 is reduced by making the main body 62c of resin. Thus, when the arm 62 is to be returned to the standby position by a predetermined driving force, the arm 62 can be returned to the standby position more quickly than when the arm 62 is heavy. Therefore, the risk of the wire arm 62 coming into contact with the wire Y caught by the traverse guide 72 can be further reduced.

In the yarn hanging device 60 of the present embodiment, the yarn hanging arm 62 is swingable between a yarn hanging position and a standby position around the rotation shaft 62b formed at the base end portion thereof. Accordingly, by swinging the wire arm 62, the wire arm 62 can be quickly returned from the wire hanging position to the standby position.

The yarn hooking device 60 of the present embodiment includes a hook 41a formed on the bobbin holder 41, and when the yarn hooking arm 62 is positioned at the yarn hooking position, the yarn Y locked to the yarn locking portion 62a is hooked to the hook 41a, thereby hooking the yarn out of the traverse range r of the bobbin Bw. The thread locking portion 62a is configured to disengage the thread Y as the thread is caught by the hook 41 a. The yarn threading device 60 further includes a yarn threading guide 65 for holding the yarn Y separated from the yarn locking portion 62a outside the traverse range r, and the yarn threading guide 65 is configured to be separated from the yarn threading guide 65 by capturing the held yarn Y by the traverse guide 72 outside the predetermined movement range M before the traverse guide 72 starts to reciprocate within the predetermined movement range M. In the present embodiment, by providing the hook 41a, the yarn Y can be smoothly separated from the yarn locking portion 62 a. Further, the thread guide 65 holds the thread Y separated from the thread locking portion 62a outside the traverse range r, and the thread Y is positioned outside the traverse range r of the bobbin Bw. After that, before the traverse guide 72 starts to reciprocate within the predetermined movement range M, the thread Y held by the thread guide 65 is caught by the traverse guide 72 outside the predetermined movement range M, and the thread Y is separated from the thread guide 65. Therefore, the yarn Y that is released from the yarn locking portion 62a and held by the yarn package guide 65 does not fall within the traverse range r until it is caught by the traverse guide 72, and it is possible to prevent the ribbon winding from being formed within the traverse range r.

(Modification)

A modified example in which the above-described embodiment is modified will be described below. However, the same reference numerals are given to the portions having the same configuration as those of the above-described embodiment, and the description thereof will be omitted as appropriate.

In the above embodiment, the control unit 64 calculates the timing of moving the wire arm 62 to the standby position in advance based on the moving speed of the traverse guide 72 and the moving speed of the wire arm 62. However, the control unit 64 may not calculate in advance the timing of moving the arm 62 to the standby position. For example, the wire hanging device 60 may also include a sensor for detecting the position of the traversing wire guide 72. The control unit 64 may determine the timing of moving the arm 62 to the standby position based on the position of the traverse guide 72 detected by the sensor. According to this configuration, the timing of the operation of the yarn hanging arm 62 is determined based on the current position of the traverse guide 72. Therefore, a complicated arithmetic processing for calculating the operation timing of the arm 62 is not required.

In the above embodiment, the arm drive motor 89 and the traverse guide drive motor 90 are controlled by the common control unit 64. However, the arm drive motor 89 and the traverse guide drive motor 90 may be controlled by different control units 64.

In the above embodiment, the control unit 64 can switch the moving speed of the traverse guide 72 that reciprocates in the predetermined moving range M between the 1 st speed and the 2 nd speed. However, the control unit 64 may set the moving speed of the traverse guide 72 that reciprocates within the predetermined moving range M to only the 1 st speed. In this case, when the moving speed of the traverse guide 72 is the 1 st speed, the control unit 64 moves the yarn hanging arm 62 to the standby position.

In the above embodiment, the control unit 64 sets the movement speed of the traverse guide to the 2 nd speed in the initial period from the start of the reciprocation of the traverse guide 72 in the longitudinal direction of the machine body from one end of the predetermined movement range M to the first arrival at the other end of the predetermined movement range M. Then, the control unit 64 controls the movement speed of the traverse guide 72 to be 1 st speed in the 2 nd period after the initial period. However, the control unit 64 may set the speed of the traverse guide to the 2 nd speed at any timing when the traverse guide 72 reciprocates within the predetermined movement range M. For example, the control unit 64 sets the speed of movement of the traverse guide 72 to the 1 st speed until an arbitrary timing is reached from the reciprocation of the traverse guide 72 from one end of the predetermined movement range M, and switches the speed of movement of the traverse guide 72 to the 2 nd speed at an arbitrary timing. In this case, the control unit 64 preferably controls the movement speed of the traverse guide 72 to be the 2 nd speed when the arm 62 is moved to the standby position. In this case, it is preferable to switch the moving speed of the traverse guide 72 to the 1 st speed again after the wire arm 62 is moved to the standby position.

In the above embodiment, the 2 nd period is a period from the end of the initial period to the formation of the full-wound package Pw. But the period 2 is not limited thereto. For example, the period from the end of the initial period to the formation of the full-wound package Pw may be changed from the period 2 to another period in which the speed of movement of the traverse guide 72 is different from the speed 1.

In the above embodiment, the control unit 64 moves the yarn hooking arm 62 to the intermediate position before the traverse guide 72 starts to reciprocate within the predetermined movement range M. However, the control unit 64 may not move the arm 62 to the intermediate position. In this case, the control unit 64 moves the yarn hanging arm 62 from the yarn hanging position to the standby position after the traverse guide 72 starts to reciprocate within the predetermined movement range M.

In the above embodiment, the driving of the arm 62 is performed by the arm driving motor. However, the wire arm 62 may be driven by an air cylinder or the like. In this case, the control unit 64 controls the solenoid valve or the like for operating the cylinder.

In the above embodiment, the control unit 64 drives the package driving motor 88 for rotationally driving the contact roller 50 for integrally rotating the bobbin Bw and the bobbin holder 41 before moving the yarn hooking arm 62 from the standby position to the yarn hooking position. However, the control unit 64 may drive the package driving motor 88 after the yarn hooking arm 62 reaches the yarn hooking position.

In the above embodiment, the control unit 64 moves the arm 62 to the intermediate position during the process of forming the wrapping yarn. However, the timing of the control unit 64 moving the yarn arm 62 to the intermediate position may be any time as long as the yarn Y is released from the yarn locking unit 62a until the traverse guide 72 is reciprocated within the predetermined movement range M from the time of moving the yarn arm 62 to the yarn hanging position. For example, the control unit 64 may be configured to form the wrapping yarn after the timing of moving the yarn hooking arm 62 to the intermediate position.

In the above embodiment, a part of the guide portion 65b is located closer to the traverse range r than the wire locking portion 62a of the wire arm 62 located at the wire hanging position. However, the guide portions 65b may be all located closer to the traverse range r than the thread locking portions 62a of the thread hanging arms 62 located at the thread hanging position. Further, the wire guide 65 may be configured to have only the holding portion 65a.

In the above embodiment, the wire guide 65 is a curved rod-shaped member. However, the wire guide 65 may be a linear rod-shaped member. In this case, the wire guide 65 is inclined downward in a direction from the traverse range r in the longitudinal direction of the machine body toward the wire forming position x. The wire guide 65 may be a plate-like member or may be a member having another shape.

In the above embodiment, the holding portion 65a is integrally formed with the guide portion 65 b. The holding portion 65a and the guide portion 65b may be different members.

In the above embodiment, the wire wrapping guide 65 is arranged on the bobbin holder side of the traverse guide 72 in the machine body width direction. However, the toe yarn guide 65 may be disposed on the 4 th yarn feeding roller 20 side of the traverse yarn guide 72 in the machine body width direction.

In the above embodiment, the wire locking portion 62a is a rod-shaped member. However, the wire locking portion 62a may not be a rod-shaped member. In the above embodiment, the main body 62c is made of resin. However, the main body 62c may not be made of resin.

In the above embodiment, the thread locking portion 62a is configured such that the thread Y is separated as the thread is caught by the hook 41a. However, the filament yarn locking portion 62a is not limited to this configuration. For example, the thread locking portion 62a may be configured to disengage the thread Y by a predetermined thread disengaging operation different from the traversing operation of the traverse guide 72. In this case, the hook 41a may not be formed in the bobbin holder 41.

In the above embodiment, the yarn Y separated from the yarn locking portion 62a when the yarn arm 62 is in the yarn hanging position is held by the yarn guide 65. However, the yarn Y that is released from the yarn locking portion 62a when the yarn arm 62 is in the yarn hanging position may be held by a member different from the ferrule yarn guide 65. Further, the yarn Y that is separated from the yarn locking portion 62a when the yarn hanging arm 62 is positioned at the yarn hanging position may be directly caught by the traverse guide 72. In this case, the control unit 64 causes the traverse guide 72 to capture the yarn Y outside the predetermined movement range M.

In the above embodiment, the yarn Y is held by the yarn guide 65, and the yarn is formed to the yarn forming position x of the bobbin Bw. However, the yarn Y may be locked to the yarn locking portion 62a of the yarn arm 62 located at the yarn hanging position, and the yarn may be formed to the yarn forming position x of the bobbin Bw. In this case, after the end of the formation of the wrapping yarn, the yarn Y is separated from the yarn locking portion 62a by the yarn separating operation of the traverse yarn guide 72.

In the above embodiment, the yarn hanging arm 62 is swingable between the yarn hanging position and the standby position around the rotation shaft 62 b. However, the yarn hanging arm 62 may not be configured to be swingable about the rotation shaft 62b between the yarn hanging position and the standby position. For example, the yarn hanging arm 62 may be configured to move between the yarn hanging position and the standby position so as to draw a V-shaped movement path.

In the above embodiment, the yarn hooking device 60 is applied to the winding device 21 of the false twist texturing machine 1. However, the yarn winding device 60 is not limited to the false twisting machine 1, and may be applied to a winding device of a rewinding machine.

Claims

1. A yarn hooking device for hooking a yarn to a bobbin holder for supporting a bobbin from which the yarn is wound, comprising:

a traverse guide that reciprocates in a predetermined movement range along an axial direction of the bobbin holder, thereby traversing the yarn in the predetermined traverse range;

a yarn holding unit configured to temporarily hold the yarn;

A yarn hooking member having a yarn locking portion for locking the yarn held by the yarn holding portion, the yarn hooking member being movable to reciprocate between a yarn hooking position at which the yarn locked by the yarn locking portion is hooked out of the traverse range of the bobbin; and

A control unit for controlling the drive of the yarn hooking member and the traverse yarn guide,

The thread locking part is configured to lock the thread held by the thread holding part in the middle of the movement of the thread hanging member from the standby position to the thread hanging position, and the thread is separated when the thread hanging member is positioned at the thread hanging position,

On the moving track between the yarn hanging position and the standby position of the yarn hanging component, there is a region where the yarn locking part contacts with the yarn captured by the traverse yarn guide which reciprocates in the prescribed moving range,

The thread holding part is configured to release the thread holding with the thread hanging outside the traversing range of the bobbin,

The traverse guide is movable along the axial direction to the outside of the predetermined movement range,

The control unit controls the traverse guide to reciprocate within the predetermined movement range after the traverse guide is moved outside the predetermined movement range in the axial direction to catch the thread separated from the thread locking unit,

The control unit controls the traverse guide to move the yarn hanging member to the standby position when the yarn caught by the traverse guide does not exist on a moving path between the yarn hanging position and the standby position of the yarn hanging member while the traverse guide reciprocates within the predetermined moving range.

2. A yarn hanging device as claimed in claim 1, wherein,

The yarn hanging component is driven by a No. 1 motor.

3. A yarn hanging device as claimed in claim 2, wherein,

The traverse guide is driven by a2 nd motor,

The 1 st motor and the 2 nd motor are controlled by a common control unit.

4. A yarn hanging device as claimed in any one of claims 1 to 3, characterised in that,

The control unit is configured to switch a moving speed of the traverse guide that reciprocates in the predetermined moving range between a1 st speed and a2 nd speed that is slower than the 1 st speed,

The control unit controls the traverse guide to move at the speed 2 when the yarn hanging member is moved to the standby position.

5. A yarn hanging device as claimed in claim 4, wherein,

The control unit sets the moving speed of the traverse guide to the 2 nd speed during an initial period from when the traverse guide reciprocates from one end of the predetermined moving range to when the traverse guide first reaches the other end of the predetermined moving range in the axial direction of the bobbin holder,

The control unit controls the traverse guide to move at the 1 st speed in a2 nd period after the initial period.

6. The filament hanging device according to any one of claims 1 to 5, wherein,

The control unit moves the yarn hooking member to a position not in contact with the yarn and a position midway between the yarn hooking position and the standby position before the traverse yarn guide starts to reciprocate within the predetermined movement range.

7. The filament hanging device according to any one of claims 1 to 6, wherein,

The control unit calculates a timing of moving the yarn hanging member to the standby position in advance based on a moving speed of the traverse guide and a moving speed of the yarn hanging member.

8. The filament hanging device according to any one of claims 1 to 6, wherein,

The yarn hanging device further comprises a sensor for detecting the position of the traverse yarn guide,

The control unit determines timing of moving the yarn hanging member to the standby position based on the position of the traverse guide detected by the sensor.

9. The filament hanging device according to any one of claims 1 to 8, wherein,

The wire locking portion is a rod-shaped member.

10. The filament hanging device according to any one of claims 1 to 9, wherein,

The yarn hanging component comprises a main body part provided with the yarn clamping part,

The main body is made of resin.

11. The filament hanging device according to any one of claims 1 to 10, wherein,

The yarn hanging member is swingable between the yarn hanging position and the standby position around a rotation shaft formed at a base end portion thereof.

12. The filament hanging device according to any one of claims 1 to 11, wherein,

The yarn hooking device is provided with a yarn hooking part formed on the bobbin bracket,

When the yarn hanging member is positioned at the yarn hanging position, the yarn locked by the yarn locking portion is hooked to the yarn hooking portion, thereby hanging the yarn outside the traverse range of the bobbin,

The thread locking part is configured to separate the thread along with the thread hanging on the thread hooking part,

The yarn hanging device further comprises a yarn wrapping guide for holding the yarn detached from the yarn locking portion outside the traverse range,

The thread guide is configured to be disengaged from the thread guide by capturing the held thread by the traverse guide outside the predetermined movement range before the traverse guide starts to reciprocate within the predetermined movement range.

13. A false twist processing machine is characterized by comprising:

a yarn feeding part for feeding yarn;

A processing section for performing false twisting processing on the yarn fed from the yarn feeding section; and

A winding unit for winding the yarn false twisted by the processing unit, the winding unit comprising:

a winding device for winding the yarn on a bobbin mounted on the bobbin holder to form a package; and

The filament hanging device of any one of claims 1 to 12.