CN112301485B

CN112301485B - Splicer for synthetic fiber yarns

Info

Publication number: CN112301485B
Application number: CN202010743237.4A
Authority: CN
Inventors: 山本真人
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2019-07-30
Filing date: 2020-07-29
Publication date: 2023-06-23
Anticipated expiration: 2040-07-29
Also published as: JP2021024739A; CN112301485A; TW202104057A; TWI795662B; EP3771679B1; EP3771679A1; JP7425694B2

Abstract

The present invention relates to a splicer for synthetic fiber yarns. The splicer (66) is provided with a splice portion (66 a), a first clamping portion (123) disposed on one side of the splice portion (66 a), a second clamping portion (133) disposed on the other side of the splice portion (66 a), and a movement mechanism (170) for moving the first clamping portion (123) and the second clamping portion (133) respectively. The movement mechanism (170) performs a first movement process as follows: when the first clamping part (123) clamps and releases the clamping of the second clamping part (133), the first clamping part (123) is moved to one side in the penetrating direction, and the first part (K1) clamped by the second clamping part (133) before the release of the first part is moved to one side in the penetrating direction in the first Yarn (YA) and the second Yarn (YB). The joint part (66 a) is implemented by: a first interlacing process for interlacing the first Yarn (YA) and the second Yarn (YB) before the first moving process; and a second cross-linking process of cross-linking the first portion (K1) after the first moving process.

Description

Splicer for synthetic fiber yarns

Technical Field

One aspect of the present invention relates to a splicer for synthetic fiber yarns.

Background

As a technique related to a splicer for a synthetic fiber yarn for performing a splice between one yarn and the other yarn formed of a synthetic fiber, for example, a yarn joining device described in japanese patent application laid-open No. 10-101267 is known. The device described in Japanese patent application laid-open No. 10-101267 is provided with: a pair of grippers capable of gripping the overlapped end portions of two yarns (one yarn and the other yarn); and an air nozzle for injecting compressed air to the overlapped yarn between the grippers, thereby interlacing and bonding the yarn. A cutter for cutting the yarn end is provided between the air nozzle and each of the two grippers.

In the splicer for synthetic fiber yarns, there is room for improvement in that, when one yarn and the other yarn are spliced, the excess yarn ends extending from the complex portion (joining portion) formed by interlacing the yarns are shortened.

Disclosure of Invention

An object of one embodiment of the present invention is to provide a splicer for synthetic fiber yarns, which can shorten the length of yarn ends extending from a complex portion of one yarn and the other yarn.

The splicer for a synthetic fiber yarn according to an aspect of the present invention is a splicer for splicing one yarn and the other yarn formed of synthetic fibers, comprising: a joint part having a passage for connecting one yarn and the other yarn, which are passed through the passage, and the passage forming a space through which the one yarn and the other yarn can pass; a first clamping portion arranged on one side of the joint portion in the penetrating direction of the passage and clamping one yarn and the other yarn; a second clamping part which is arranged at the other side of the joint part in the penetrating direction and clamps one yarn and the other yarn; and a moving mechanism that moves the first clamping portion and the second clamping portion in the penetrating direction, the moving mechanism performing a first moving process as follows: in a state in which one yarn and the other yarn are held by the first holding portion and the holding by the second holding portion is released, the first holding portion is moved to one side in the penetrating direction, and the first portion of the one yarn and the other yarn held by the second holding portion before the release is moved to one side in the penetrating direction, whereby the joint portion performs: a first interlacing process for interlacing one yarn and the other yarn before the first moving process; and a second interlacing process for interlacing a first portion of the one yarn and the other yarn after the first moving process.

In the splicer for synthetic fiber yarns, one yarn and the other yarn can be entangled by the first interlacing treatment. In addition, the first portion of the one yarn and the other yarn held by the second holding portion can be moved by being pulled by the first holding portion and simultaneously entangled by the second entanglement processing. This makes it possible to shorten the length of the yarn end extending from the intersection of one yarn and the other yarn.

In the splicer for a synthetic fiber yarn according to an aspect of the present invention, the moving mechanism may perform the following stretching process before the first interlacing process: in a state in which one yarn and the other yarn are held by the first holding portion and the second holding portion, at least one of the first holding portion and the second holding portion is moved in the penetrating direction so that the distance between the first holding portion and the second holding portion is increased, and the one yarn and the other yarn are stretched. This can suppress thickening of the intersection portion than the other portions.

In the splicer for a synthetic fiber yarn according to an aspect of the present invention, the moving mechanism may perform the following second movement process: after the second interlacing process, in a state in which one yarn and the other yarn are held by the second holding portion and the holding by the first holding portion is released, the second holding portion is moved to the other side in the penetrating direction, and the second portion of the one yarn and the other yarn held by the first holding portion before the release is moved to the other side in the penetrating direction, and the joint portion performs the third interlacing process as follows: after the second movement treatment, a second portion of one yarn and the other yarn are entangled. In this case, the second portion of the one yarn and the other yarn held by the first holding portion can be entangled by the third entanglement processing while being pulled and moved by the second holding portion. This makes it possible to shorten the length of the yarn end extending from the intersection of one yarn and the other yarn.

The splicer for a synthetic fiber yarn according to an aspect of the present invention may further include: a third clamping part arranged at one side of the first clamping part in the penetrating direction and clamping one yarn; and a fourth clamping portion arranged on the other side of the second clamping portion in the penetrating direction, wherein a force for clamping the other yarn by the third clamping portion and the fourth clamping portion is smaller than a force for clamping the yarn by the first clamping portion and the second clamping portion. In this case, the yarn can be prevented from coming off the passage of the joint portion by the clamping by the third clamping portion and the fourth clamping portion. Further, since the force for holding the yarn by the third holding portion and the fourth holding portion is smaller than the force for holding the yarn by the first holding portion and the second holding portion, the yarn is easily pulled and moved by the first moving process or the second moving process, for example.

The splicer for a synthetic fiber yarn according to an aspect of the present invention may further include: a first cutter for cutting the other yarn at a position on one side of the first clamping part in the penetrating direction; and a second cutter for cutting one yarn at a position on the other side of the second clamping part in the penetrating direction. This makes it possible to further shorten the length of the yarn end extending from the intersection of one yarn and the other yarn.

In the splicer for a synthetic fiber yarn according to one aspect of the present invention, the first cutter may move to a position where the first clamping portion clamps one yarn and the other yarn, and the second cutter may move to a position where the second clamping portion clamps one yarn and the other yarn, and the first cutter may move to a position where the first clamping portion clamps one yarn and the other yarn. This enables the first cutter and the second cutter to operate efficiently.

In the splicer for a synthetic fiber yarn according to an aspect of the present invention, the first clamping portion and the second clamping portion may be configured to be swingable about axes intersecting the penetrating direction, and the moving mechanism may include: a cylinder cam having a first cam groove and a second cam groove; a first follower coupled to the first clamping portion and driven along the first cam groove; a second follower coupled to the second clamp portion and driven along the second cam groove; and a motor for rotationally driving the cylindrical cam. In this case, the first clamping portion and the second clamping portion are respectively swung by the moving mechanism as the cam mechanism, whereby movement of the first clamping portion and the second clamping portion in the penetrating direction can be achieved.

According to one aspect of the present invention, a splicer for a synthetic fiber yarn can be provided that can shorten the length of a yarn end protruding from a complex portion of one yarn and the other yarn.

Drawings

Fig. 1 is a diagram showing a configuration of a false twist processing system according to an embodiment.

Fig. 2 is a perspective view showing a package holding portion of the first conveying device.

Fig. 3 is a perspective view showing a yarn feeding package to which an adapter is attached.

Fig. 4 is a perspective view showing a package holding section of the second conveying device.

Fig. 5 is a perspective view showing a creel.

Fig. 6 is a perspective view showing the bobbin.

Fig. 7 is a perspective view showing the package replacement apparatus.

Fig. 8A is a perspective view showing the holding unit.

Fig. 8B is a perspective view showing the holding unit.

Fig. 9 is a diagram showing a structure of the replacement unit.

Fig. 10 is a side view showing the recovery device.

Fig. 11 is a side view showing the supply device.

Fig. 12 is a perspective view showing the joint device.

Fig. 13 is a perspective view showing the joint device.

Fig. 14 is a perspective view showing the joint device.

Fig. 15 is a perspective view showing a splicer.

Fig. 16 is a cross-sectional view showing the joint portion.

Fig. 17 is another perspective view showing a splicer.

Fig. 18A is a perspective view showing the second cutter.

Fig. 18B is another perspective view showing the second cutter.

Fig. 19 is a schematic development view showing the first cam groove and the second cam groove of the cylinder cam.

Fig. 20A is a schematic plan view showing an example of the operation of the splicer. Fig. 20B is a subsequent diagram showing 20A.

Fig. 21A is a view showing the sequence of fig. 20B.

Fig. 21B is a view subsequent to fig. 21A.

Fig. 22A is a view subsequent to fig. 21B.

Fig. 22B is a view showing the sequence of fig. 22A.

Fig. 23A is a view showing the sequence of fig. 22B.

Fig. 23B is a view subsequent to fig. 23A.

Fig. 24A is a view showing the sequence of fig. 23B.

Fig. 24B is a view subsequent to fig. 24A.

Fig. 25A is a view showing the sequence of fig. 24B.

Fig. 25B is a view subsequent to fig. 25A.

Fig. 26A is a view showing the sequence of fig. 25B.

Fig. 26B is a view subsequent to fig. 26A.

Fig. 27A is a view showing the sequence of fig. 26B.

Fig. 27B is a view subsequent to fig. 27A.

Fig. 28 is a view subsequent to fig. 27B.

Description of the reference numerals: 66. splicer (splicer for synthetic fiber yarn), 66a, splice portion, 114, chamber (passageway), 116a, injection hole, 121, shaft, 131, shaft, 123, first clamp portion, 127, third clamp portion, 129, first cutter, 133, second clamp portion, 139, second cutter, 137, fourth clamp portion, 140, gate mechanism (gate portion), 141, first gate, 142, second gate, 150, cylindrical cam (gate cam), 151, first cam groove, 152, second cam groove, 154, first clamp portion follower (first follower), 155, second clamp portion follower (second follower), 157, first gate follower (follower), 158, second gate follower (follower), 160, motor, 170, moving mechanism, 180, opening and closing mechanism, K1. first portion, K2. second portion, YA. first yarn (yarn on one side), YB. second yarn (yarn on the other side).

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and overlapping description thereof is omitted.

As shown in fig. 1, the false twist processing system 1 includes a false twist processing machine 2, a first carrying device 3, a second carrying device 4, a yarn feeding unit 5, a package replenishment device 6, and a package replacement device 7. The false twist processing system 1 includes a control device (not shown) that integrally controls the false twist processing machine 2, the first conveying device 3, the second conveying device 4, the package replenishment device 6, and the package replacement device 7. In the false twist processing system 1 according to the present embodiment, a plurality of false twist processing machines 2, first carrying devices 3, second carrying devices 4, yarn feeding units 5, package replenishment devices 6, and package replacement devices 7 are provided. In the following description, the "Z direction" shown in the drawings is the vertical direction (up-down direction), the "X direction" is the horizontal direction, and the "Y direction" is the horizontal direction perpendicular to the X direction and the Z direction.

The false twist processing system 1 processes the yarn Y (see fig. 3) supplied from the plurality of yarn supply packages P1 (see fig. 2) to produce a wound package P2 (see fig. 4). The yarn Y is, for example, a synthetic fiber yarn made of thermoplastic synthetic fibers such as polyester and polyamide. The yarn supply package P1 is formed by winding a partially oriented yarn (POY: partially Oriented Yarn) around a yarn supply bobbin B1 (see fig. 2). The winding package P2 is formed by winding a stretch textured yarn (DTY: draw Textured Yarn) around a winding bobbin B2 (see fig. 4).

The false twist texturing machine 2 processes the yarn Y to form a winding package P2. The false twist machine 2 has a main body 2a and 2 winding bodies 2b. The main body 2a is provided with a twisting device, a yarn feeding roller, and the like. The winding body 2b is provided with a winding device, a doffing device, and the like. The main body 2a extends in the X direction. The winding body 2b extends in the X direction. The winding body 2b is disposed at a position facing the main body 2a in the Y direction (width direction of the main body 2 a). That is, the 2 winding bodies 2b are arranged at positions sandwiching the main body 2 a.

The false twist processing machine 2 performs false twist processing on the yarn Y supplied from the plurality of yarn supply packages P1, and winds the processed yarn around the winding bobbin B2 to form a winding package P2 (see fig. 4). The false twist texturing machine 2 supplies the formed winding package P2 to the second carrying device 4.

The first transporting device 3 transports the yarn package P1. The first conveying device 3 travels along a first rail R1 suspended from a canopy, for example. The first rail R1 is disposed, for example, between one false twist machine 2 and the other false twist machine 2, and between the winding body 2b and the yarn feeding unit 5. The first transporting device 3 transports the yarn-feeding package P1 between a supply location where the yarn-feeding package P1 is supplied and a predetermined package replenishment device 6. As shown in fig. 2, the first conveying device 3 includes a first package holding portion 3a. The first package holding section 3a is suspended from the first rail R1. The first package holding portion 3a holds a plurality of (e.g., 12) yarn packages P1. The first package holding portion 3a supports the yarn feed package P1 by a support member (not shown) inserted in the yarn feed bobbin B1 of the yarn feed package P1.

As shown in fig. 3, the yarn feeding package P1 is provided with the splicer 10. The splicer 10 holds the yarn Y. The adapter 10 has a mounting portion 11, a first holding portion 12, and a second holding portion 13. The mounting portion 11 is mounted on the yarn supplying bobbin B1 of the yarn supplying package P1 so as to be rotatable in synchronization therewith. The mounting portion 11 is cylindrical. The mounting portion 11 is mounted to an end portion of the yarn supplying bobbin B1 protruding from a side surface of the yarn supplying package P1.

The first holding portion 12 holds a first yarn end Y1 of the yarn Y on the outer layer side of the yarn feed package P1. The first holding portion 12 is provided to the mounting portion 11. The first holding portion 12 has a first arm 12a, a first holding tool 12b, and a first yarn guide 12c. The first arm 12a is fixed to a side surface of the mounting portion 11 at a base end side, and extends in a radial direction of the mounting portion 11. The first gripping means 12b grips the first yarn end Y1. The first gripping tool 12b is provided on the distal end side of the first arm 12a. The first yarn guide 12c is provided to the first arm 12a.

The second holding portion 13 holds a second yarn end Y2 of the yarn Y on the inner layer side (tail side) of the yarn feed package P1. The second holding portion 13 is provided to the mounting portion 11. The second holding portion 13 includes a second arm 13a, a second gripping tool 13b, and a second yarn guide 13c. The second arm 13a is fixed to a side surface of the mounting portion 11 at a base end side, and extends in a radial direction of the mounting portion 11. The second arm 13a is configured to: is positioned in a linear position with the first arm 12a. The second gripping means 13b grip the second yarn end Y2. The second gripping tool 13b is provided on the distal end side of the second arm 13a. The second yarn guide 13c is provided to the second arm 13a.

In the splicer 10, the first yarn end Y1 pulled out from the outer layer side of the yarn feed package P1 is gripped by the first gripping tool 12b via the first yarn guide 12c of the first holding portion 12, and the second yarn end Y2 pulled out from the inner layer side of the yarn feed package P1 is gripped by the second gripping tool 13b via the first yarn guide 12c of the first holding portion 12 and the second yarn guide 13c of the second holding portion 13. The splicer 10 is attached to the yarn feed package P1 by an operator, for example. A tube cap BC (see fig. 2) may be attached to the yarn supplying tube B1 at an end opposite to the end where the adapter 10 is attached.

As shown in fig. 4, the second conveying device 4 conveys the winding package P2. The second conveying device 4 travels along the first rail R1. The second conveying device 4 conveys the wound package P2 between the predetermined false twist machine 2 and a storage facility (not shown) for the wound package P2. The second conveying device 4 has a second package holding portion 4a. The second package holding section 4a is suspended from the first rail R1. A plurality of (for example, 16) winding packages P2 are held by the second package holding unit 4a. Specifically, the package receiving unit supports both end portions of each winding bobbin B2, thereby holding the winding package P2.

As shown in fig. 1, the yarn feeding unit 5 feeds the yarn Y to the false twist texturing machine 2. The yarn feeding unit 5 is disposed adjacent to the false twist machine 2. The yarn feeding unit 5 is disposed at a position facing the winding body 2b of the false twist texturing machine 2 in the Y direction. The yarn feeding unit 5 extends in the X direction. The yarn supply unit 5 has a plurality of creels 20. The creel 20 holds the supply package P1. A plurality of creels 20 are arranged in an aligned manner along the X direction. In the yarn feeding unit 5 according to the present embodiment, a pair of creels 20 are disposed back to back in the Y direction.

As shown in fig. 5, the bobbin cradle 20 has a

bobbin base section

21, 4

first struts

22a, 22b, 22c, 22d, a partition plate 23, and a plurality of bobbins (corresponding to english: peg) 24. The cartridge base 21 is a frame-like frame. The 4 first struts 22a to 22d stand on the cartridge base portion 21. The 4 first struts 22a to 22d extend in the Z direction. The 4 first struts 22a to 22d are arranged at predetermined intervals in the X direction and at predetermined intervals in the Y direction. The partition plate 23 is provided to the first support posts 22a to 22d. The partition plates 23 are disposed at predetermined intervals in the Z direction of the first support posts 22a to 22d. The partition plate 23 prevents the yarn feed package P1 from falling.

The bobbin 24 supports the yarn feed package P1. The bobbin 24 is disposed on the

first struts

22a,22 b. The bobbin 24 is disposed in plural (for example, 8) at predetermined intervals in the Z direction of the

first struts

22a,22 b. The bobbin 24 is disposed between the pair of partition plates 23. The bobbin 24 provided on the first pillar 22a and the bobbin 24 provided on the first pillar 22b are arranged at the same height position. In the following description, the bobbin 24 provided to the first pillar 22a is referred to as a "first bobbin 24a", and the bobbin 24 provided to the first pillar 22b is referred to as a "second bobbin 24b".

The first bobbin 24a and the second bobbin 24b are used in groups of 2. In this configuration, the yarn Y of the yarn feed package P1 supported by the first bobbin 24a is connected to the yarn Y of the yarn feed package P1 supported by the second bobbin 24 b. Specifically, the first yarn end Y1 on the outer layer side or the second yarn end Y2 on the inner layer side of the yarn Y of the yarn feed package P1 supported by the first bobbin 24a and the second yarn end Y2 on the inner layer side or the first yarn end Y1 on the outer layer side of the yarn Y of the yarn feed package P1 supported by the second bobbin 24b are connected to each other. Thereby, 1 yarn Y is supplied from the yarn supply package P1 supported by the first bobbin 24a and the second bobbin 24b in a group of 2.

As shown in fig. 6, the bobbin 24 includes a yarn feed package support portion 25 and a bobbin main body portion 26. The yarn feed package support portion 25 supports the yarn feed package P1. The yarn feed package support portion 25 includes

package support members

25a and 25b, and a rotation mechanism 25c. The

package support members

25a and 25b are rod-shaped members. The

package support members

25a and 25b are rotatably supported by the bobbin trunk 26. The

package support members

25a and 25b extend in one direction and are parallel to each other and are arranged at a predetermined interval. The bobbin 24 supports the yarn feed package P1 at 2 points by the

package support members

25a and 25 b.

A cover portion 25d is provided at one end portion in the extending direction of the package support member 25 a. A cover portion 25e is provided at one end portion in the extending direction of the package support member 25 b. The

cover portions

25d, 25e are formed of, for example, rubber (resin) or the like having a large friction coefficient. The covering

portions

25d and 25e are in contact (contact) with the inner peripheral surface of the yarn supplying bobbin B1 of the winding package P2. One end of the package support member 25a and one end of the package support member 25b are connected by a connecting member 25 f.

The rotation mechanism 25c has a driven pulley 25g, a driving pulley 25h, a power transmission belt 25i, and a first sheave 25j.

The driven pulley 25g is provided at the other end of the package support member 25 a. The driving pulley 25h is provided at the other end of the package support member 25 b. The power transmission belt 25i is stretched over the driven pulley 25g and the driving pulley 25h. The first sheave 25j is provided to the drive pulley 25h (package support member 25 b). In the present embodiment, the first wheel 25j is a geneva wheel constituting a geneva mechanism. The first wheel 25j is rotated by rotational driving of a first joint driver 62a or a second joint driver 63a of the joint device 60 described later. In the yarn feeding package support portion 25, the package support member 25a rotates in synchronization with the package support member 25b by the rotation of the first wheel 25j.

The bobbin main body portion 26 includes a bobbin main body 26a and a rotation transmission member 26b. The bobbin body 26a is a rectangular parallelepiped member. The bobbin main body 26a supports the package support member 25a of the yarn feed package support portion 25 and the package support member 25b rotatably about the rotation axis thereof. The bobbin main body 26a is provided with a restricting member 26c. The restricting member 26c is, for example, disk-shaped. The regulating member 26c is disposed on one side surface of the bobbin main body 26a. The restricting member 26c is inserted into the package support member 25a and the package support member 25 b. The regulating member 26c is opposed to the end surface of the yarn feed package P1, and regulates movement of the yarn feed package P1 in the extending directions of the package support member 25a and the package support member 25 b. An insertion hole 26d is formed in the bobbin body 26a. The first support 22a or the first support 22b of the creel 20 is inserted into the insertion hole 26d.

The rotation transmitting member 26b supports the bobbin main body 26a. A bobbin body 26a is fixed to an upper end portion of the rotation transmission member 26b. The rotation transmission member 26b is cylindrical. The hollow portion of the rotation transmitting member 26b communicates with the insertion hole 26d of the bobbin body 26a. The

first support posts

22a, 22b of the creel 20 are coaxially inserted into the rotation transmission member 26b. A second wheel 26e is provided at the lower end of the rotation transmitting member 26b. In the present embodiment, the second wheel 26e is a geneva wheel constituting a geneva mechanism. The second wheel 26e is rotated by driving a first rotary driver 36a or a second rotary driver 37a of a rotary device 35 described later. The bobbin trunk 26 rotates with the rotation of the second wheel 26e. Thereby, the yarn feed package support portion 25 rotates. The bobbin 24 rotates to a replacement position where the yarn supplying bobbin B1 is recovered and the yarn supplying package P1 is mounted, and a supply position where the yarn Y is supplied.

As shown in fig. 1, the package replenishment device 6 supplies the yarn package P1 to the package replacement device 7. The package replenishment device 6 temporarily stores the yarn feed package P1 carried by the first carrying device 3, and supplies the yarn feed package P1 to the package replacement device 7. The package replenishment device 6 stores a plurality (for example, 4) of yarn packages P1. The package replenishment device 6 includes a transfer mechanism (not shown) for transferring the yarn package P1 from the first transfer device 3.

The package replacement device 7 recovers the yarn supply bobbin B1 from the bobbin 24 and attaches the yarn supply package P1 to the bobbin 24. As shown in fig. 7, the package changing device 7 travels along the second track R2. The second rail R2 is laid on the ground and extends along the X direction (the arrangement direction of the creel 20). That is, the package replacement apparatus 7 travels in the X direction. The package replacement device 7 moves between one end of the yarn feeding unit 5 where the package replenishment device 6 is disposed and the other end of the yarn feeding unit 5.

The package replacement apparatus 7 includes a traveling carriage (traveling means) 30, a lifting means 31, a holding means (holding means) 32, and a replacement means 33. The package replacement apparatus 7 further includes a control unit (not shown) for controlling the operation of each unit.

The traveling carriage 30 has a traveling base portion 30a and a pillar support portion 30b. The traveling base portion 30a has a rectangular parallelepiped shape. Wheels for traveling on the second rail R2, a driving mechanism, and the like are accommodated in the traveling base portion 30 a.

The pillar support portion 30b stands on the traveling base portion 30a. The strut support part 30b has 4

second struts

30c, 30d, 30e, 30f, and a wall part 30g. The second struts 30c to 30f and the wall portion 30g extend in the Z direction. The second stay 30c is disposed at one end in the X direction and one end in the Y direction in the traveling base portion 30a. The second stay 30c is disposed at a corner of the traveling base portion 30a. The second stay 30d is disposed at one end in the X direction and the other end in the Y direction in the traveling base portion 30a. The second support 30c and the second support 30d are disposed at positions facing each other in the Y direction. The second stay 30d is disposed at a corner of the traveling base portion 30a.

The second support 30e is disposed at a position facing the second support 30c in the X direction with a predetermined distance from the second support 30 c. The second pillar 30f is disposed at the other end portion of the traveling base portion 30a in the Y direction between the second pillar 30c and the second pillar 30e in the X direction. The second support 30f is disposed opposite to the second support 30d in the X direction. The wall portion 30g extends in the X direction. The wall portion 30g is disposed at the other end portion in the X direction and the other end portion in the Y direction in the traveling base portion 30a. That is, the wall portion 30g is disposed at a corner of the traveling base portion 30a. The wall portion 30g is disposed so as to face the second support 30e in the Y direction and so as to face the second support 30f in the X direction.

The lifting unit 31 is lifted by the operator. The lifting unit 31 is used for maintenance or the like. The lifting unit 31 is disposed at the other end portion in the X direction in the traveling base portion 30a of the traveling carriage 30. The elevating unit 31 has a guide portion 31a and an elevating portion 31b.

The guide portion 31a is a guide rail. The guide portion 31a is disposed on a wall portion 30g of the pillar support portion 30b of the traveling carriage 30. The guide portion 31a extends along the Z direction. The lifting unit 31b is a work table on which an operator rides. The lifting portion 31b has a box shape. The lifting portion 31b is provided to be liftable in the Z direction along the guide portion 31 a. The elevating portion 31b moves along the guide portion 31a by a driving mechanism not shown.

The holding unit 32 holds a plurality of (e.g., 4) yarn packages P1. The holding unit 32 holds the same number of yarn packages P1 as the number of yarn packages P1 held by the package replenishment device 6. The holding unit 32 receives the supply of the yarn feeding package P1 from the package replenishment device 6, temporarily stores the yarn feeding package P1, and supplies the yarn feeding package P1 to the replacement unit 33.

As shown in fig. 8A and 8B, the holding unit 32 includes a main body frame 32a, a package support portion 32B, and a driving portion 32c. The main body frame 32a is disposed on the traveling base portion 30a of the traveling carriage 30. The main body frame 32a is disposed at one end in the X direction in the traveling base portion 30a.

The package support portion 32b supports the yarn feed package P1. The package support portion 32b is provided rotatably. The package support portion 32b rotates in a range of substantially 90 °. The package support portion 32B rotates to a supply position (see fig. 8B) for receiving the supply of the yarn-feeding package P1 from the package supply device 6, and a supply position (see fig. 8A) for supplying the yarn-feeding package P1 to the replacement unit 33. The driving portion 32c rotates the package support portion 32 b. The driving unit 32c is, for example, a cylinder.

The replacement unit 33 performs replacement of the yarn supply bobbin B1 and the yarn supply package P1 at the bobbin 24. Specifically, the replacement unit 33 recovers the yarn supply bobbin B1 from the bobbin 24, and mounts the yarn supply package P1 to the bobbin 24. As shown in fig. 7, the replacement unit 33 is disposed adjacent to the holding unit 32. As shown in fig. 9, the replacement unit 33 includes a base 34, a rotating device 35, a collecting device 40, a supply device 50, a joint device 60, and a moving device 70.

The base 34 supports the rotating device 35, the recovering device 40, the supplying device 50, and the joint device 60. The base 34 is provided to be vertically movable along the pillar support portion 30b of the traveling carriage 30. The base 34 is provided at a position where access to the holding unit 32 is possible.

The rotating device 35 rotates the bobbin 24 of the creel 20. The rotating device 35 is fixed to the base 34. The rotating device 35 is disposed in the base 34 at a position facing the yarn feeding unit 5. The turning device 35 has a first drive mechanism 36 and a second drive mechanism 37.

The first drive mechanism 36 rotates the first bobbin 24a of the creel 20. The first drive mechanism 36 includes a first rotary actuator 36a and a first rotary arm 36b. The first rotary actuator 36a rotates the second wheel 26e of the first bobbin 24 a. The first rotary actuator 36a is a mahalanobis intermittent actuator constituting a mahalanobis intermittent mechanism. The first rotary actuator 36a is rotated by rotation driving of a motor (not shown). The first rotary arm 36b supports the first rotary actuator 36a. The first turning arm portion 36b is provided so as to be able to swing in the horizontal direction. The first pivot arm 36b is driven by a motor or a cylinder (not shown), for example.

The second drive mechanism 37 rotates the second bobbin 24b of the creel 20. The second driving mechanism 37 has a second rotation driver 37a and a second rotation arm 37b. The second rotary actuator 37a rotates the second wheel 26e of the second bobbin 24 b. The second rotary actuator 37a is a mahalanobis intermittent actuator constituting a mahalanobis intermittent mechanism. The second rotary actuator 37a is rotated by rotation driving of a motor (not shown). The second rotation arm 37b supports the second rotation driver 37a. The second turning arm portion 37b is provided so as to be able to swing in the horizontal direction. The second pivot arm 37b is driven by a motor or a cylinder (not shown), for example.

When the yarn feed package P1 is attached to the bobbin 24, the rotating device 35 rotates the bobbin 24 to change the orientation of the bobbin 24. The rotation device 35 operates the first drive mechanism 36 or the second drive mechanism 37 corresponding to the target bobbin 24. For example, when the first drive mechanism 36 is operated, the turning device 35 swings the first turning arm 36b, and engages the first turning driver 36a with the second wheel 26e of the first bobbin 24 a. When the first rotary driver 36a engages with the second wheel 26e, the rotary device 35 rotates the first rotary driver 36a in one direction. The bobbin 24 is rotated by the rotation transmission member 26b when the second wheel 26e rotates. Thereby, the bobbin 24 rotates, and the tip ends of the

package support members

25a, 25b face the replacement unit 33 side.

The recovery device 40 recovers the yarn supplying bobbin B1 to which the adapter 10 is attached from the bobbin 24. As shown in fig. 10, the recovery device 40 has a first support mechanism 41 and a first recovery driving mechanism 42. The first support mechanism 41 supports the yarn supplying bobbin B1. The first support mechanism 41 advances and retreats relative to the bobbin 24, whereby the yarn supplying bobbin B1 is recovered. The first support mechanism 41 has a first sliding portion 41a and a first package support member 41b.

The first sliding portion 41a has a first linear guide 41c. A part of the first sliding portion 41a is movable in a predetermined direction via the first linear guide 41c. The first package support member 41B supports the yarn supply bobbin B1. The first package support member 41b is provided at the front end portion of the moving first slide portion 41 a. The first package support member 41b extends along the extending direction of the first sliding portion 41 a.

The first recovery driving mechanism 42 drives the first supporting mechanism 41. The first recovery driving mechanism 42 includes a first slide rail 42a, a first recovery driving portion 42b, a first lifting portion 42c, and a second recovery driving portion 42d. The first slide rail 42a is connected to the first slide portion 41 a. The first slide rail 42a reciprocates a part of the first slide portion 41a by driving the first recovery driving portion 42 b. The first recovery driving section 42b is, for example, a cylinder. The first lifting portion 42c is connected to the first sliding portion 41 a. The first lifting/lowering unit 42c lifts/lowers the first sliding unit 41a by driving the second recovery driving unit 42d. Thereby, the first sliding portion 41a swings. The second recovery driving section 42d is a motor, for example.

The following describes the operation of the recovery device 40 for recovering the yarn supplying bobbin B1. The recovery device 40 advances a part of the first sliding portion 41a of the first support mechanism 41 relative to the bobbin 24 rotated by the rotating device 35 by the first recovery driving mechanism 42, and positions the first package support member 41B in the hollow portion of the yarn supplying bobbin B1. At this time, the recovery device 40 swings the first sliding portion 41a of the first support mechanism 41 downward by the first recovery driving mechanism 42, and tilts the first package support member 41b with respect to the horizontal direction. In the recovery device 40, when the first package support member 41B is positioned in the hollow portion of the yarn supplying bobbin B1, the first slide portion 41a is swung upward by the first recovery driving mechanism 42, whereby the first package support member 41B is horizontally arranged. Thereby, the first package support member 41B contacts the yarn supply bobbin B1, the yarn supply bobbin B1 is lifted, and the yarn supply bobbin B1 is separated from the

package support members

25a, 25B. The recovery device 40 withdraws a part of the first sliding portion 41a of the first supporting mechanism 41 by the first recovery driving mechanism 42. As described above, the recovery device 40 recovers the yarn supplying bobbin B1 from the bobbin 24.

The supply device 50 supplies the yarn package P1 to the bobbin 24. As shown in fig. 11, the supply device 50 has a second support mechanism 51 and a second supply driving mechanism 52. The second support mechanism 51 supports the yarn feed package P1. The second support mechanism 51 advances and retreats relative to the bobbin 24, whereby the yarn feed package P1 is supplied. The second support mechanism 51 has a second sliding portion 51a and a second package support member 51b.

The second sliding portion 51a has a second linear guide 51c. A part of the second sliding portion 51a is movable in a predetermined direction via the second linear guide 51c. The second package support member 51b supports the yarn feed package P1. The second package support member 51b is provided at the front end portion of the moving second slide portion 51 a. The second package support member 51b extends along the extending direction of the second slide portion 51 a.

The second supply driving mechanism 52 drives the second supporting mechanism 51. The second supply driving mechanism 52 has a second slide rail 52a, a first supply driving portion 52b, a second lifting portion 52c, and a second supply driving portion 52d. The second slide rail 52a is connected to the second slide portion 51 a. The second slide rail 52a reciprocates a part of the second slide portion 51a by driving of the first supply driving portion 52 b. The first supply driving unit 52b is, for example, a cylinder. The second lifting portion 52c is connected to the second sliding portion 51 a. The second lifting/lowering portion 52c lifts/lowers the second slide portion 51a by driving the second supply driving portion 52d. Thereby, the second sliding portion 51a swings. The second supply driving unit 52d is a motor, for example.

The operation of the supply device 50 to acquire the yarn package P1 from the holding unit 32 will be described. The feeder 50 acquires the yarn feed package P1 from the holding unit 32 while the package changer 7 is moving. The supply device 50 advances a part of the second sliding portion 51a of the second support mechanism 51 relative to the yarn feed package P1 supported by the package support portion 32b of the holding unit 32 by the second supply driving mechanism 52 when the replacement unit 33 is stopped at a predetermined height position relative to the holding unit 32, thereby positioning the second package support member 51b in the hollow portion of the yarn feed package P1. At this time, the second supply device 50 swings the second sliding portion 51a of the second support mechanism 51 downward by the second supply driving mechanism 52, and tilts the second package support member 51b with respect to the horizontal direction. In the feeding device 50, when the second package support member 51b is positioned in the hollow portion of the yarn feeding package P1, the second slide portion 51a is swung upward by the second feeding driving mechanism 52, so that the second package support member 51b is horizontally arranged. Thereby, the second package support member 51b contacts the yarn feed package P1, the yarn feed package P1 is lifted, and the yarn feed package P1 is separated from the package support portion 32 b. The feeding device 50 retreats a part of the second sliding part 51a of the second supporting mechanism 51 by the second feeding driving mechanism 52. As described above, the supply device 50 obtains the yarn package P1 from the holding unit 32.

The following describes a feeding operation of the feeder 50 for feeding the yarn package P1 to the bobbin 24. The supply device 50 advances a part of the second sliding portion 51a of the second support mechanism 51 with respect to the bobbin 24 from which the yarn supplying bobbin B1 is removed by the second supply driving mechanism 52, thereby positioning the

package support members

25a and 25B of the bobbin 24 in the hollow portion of the yarn supplying package P1. In the supply device 50, when the

package support members

25a and 25b of the bobbin 24 are positioned in the hollow portion of the yarn supply package P1, the second slide portion 51a is swung downward by the second supply driving mechanism 52, and the second package support member 51b is inclined with respect to the horizontal direction. Thereby, the

package support members

25a and 25b of the bobbin 24 are brought into contact with the yarn feed package P1, the yarn feed package P1 is supported by the bobbin 24, and the second package support member 51b is separated from the yarn feed package P1. The feeding device 50 retreats a part of the second sliding part 51a of the second supporting mechanism 51 by the second feeding driving mechanism 52. In this way, the supply device 50 attaches the yarn package P1 to the bobbin 24.

The yarn splicing device 60 splices the yarn Y of the yarn feed package P1 supported by the first bobbin 24a and the yarn Y of the yarn feed package P1 supported by the second bobbin 24 b. As shown in fig. 12, 13, and 14, the joint device 60 includes a catch guide mechanism 61, a first rotation mechanism (operation mechanism) 62, a second rotation mechanism (operation mechanism) 63, and a joint mechanism 64.

The yarn joining device 60 is provided so as to be movable in a direction (Y direction) in which the replacement unit 33 and the yarn feeding unit 5 face each other by a moving mechanism (not shown). The yarn joining device 60 moves between a standby position where the yarn joining device 60 is disposed in the base 34 and a yarn joining position where the yarn joining device 60 moves toward the yarn feeding unit 5 and advances to the outside than the base 34.

The catch guide mechanism 61 catches the yarn Y of the yarn feed package P1, and guides the yarn Y to the yarn splicing mechanism 64. The catch guide mechanism 61 catches the first yarn end Y1 of the yarn Y of the yarn feed package P1 supported by the one bobbin 24 and the second yarn end Y2 of the yarn Y of the yarn feed package P1 supported by the other bobbin 24, and guides the caught yarn to the yarn splicing mechanism 64. The catch guide mechanism 61 has a suction portion 61a and a joint arm portion 61b.

The suction portion 61a sucks and catches the yarn Y. The suction portion 61a includes a suction pipe 61c, a suction nozzle 61d, and a hook portion 61e. The suction nozzle 61d is provided at the front end portion of the suction pipe 61 c. The suction nozzle 61d sucks the yarn Y. A negative pressure source (not shown) is connected to the suction pipe 61 c. Thereby, suction flow is generated in the suction nozzle 61 d. The proximal end side of the suction pipe 61c is connected to the joint arm portion 61b. The hook 61e is provided at the tip of the suction pipe 61c and is located opposite to the suction nozzle 61 d. The hook 61e engages the yarn Y entangled by the yarn joining device 60. The joint arm portion 61b moves the suction portion 61 a. The joint arm portion 61b includes a link mechanism and a plurality of motors. The joint arm portion 61b is supported by a bracket 61 f.

The first rotating mechanism 62 and the second rotating mechanism 63 operate the bobbin 24 to rotate the yarn feed package P1. The first rotating mechanism 62 and the second rotating mechanism 63 rotate the yarn feed package P1 to sequentially feed out the yarn Y from the yarn feed package P1 when the yarn Y is guided to the yarn splicing mechanism 64 by the catch guide mechanism 61.

The first rotation mechanism 62 operates the first bobbin 24 a. The first rotation mechanism 62 has a first joint driver 62a, a first motor 62b, and a first joint arm 62c. The first joint driver 62a is rotatably supported by the first joint arm 62c. The first joint driver 62a is provided with a first driven pulley 62d. The first motor 62b is fixed to the first joint arm portion 62c. A first drive pulley 62e is connected to an output shaft of the first motor 62 b. The first motor 62b rotationally drives the first drive pulley 62e about the shaft. A first power transmission belt 62f is provided on the first driven pulley 62d and the first driving pulley 62e. Thereby, the first joint driver 62a is rotated by the rotational drive of the first motor 62 b.

The second rotating mechanism 63 operates the second bobbin 24 b. The second rotation mechanism 63 has a second joint driver 63a, a second motor 63b, and a second joint arm 63c. The second joint driver 63a is rotatably supported by the second joint arm 63c. The second joint driver 63a is provided with a second driven pulley 63d. The second motor 63b is fixed to the second joint arm 63c. A second drive pulley 63e is connected to an output shaft of the second motor 63 b. The second motor 63b rotationally drives the second drive pulley 63e about the shaft. A second power transmission belt 63f is provided on the second driven pulley 63d and the second drive pulley 63e. Thereby, the second joint driver 63a is rotated by the rotational drive of the second motor 63 b.

The joint mechanism 64 performs the joint. The splicing mechanism 64 has a splicer 66, a first guide mechanism 67, and a second guide mechanism 68.

The splicer 66 includes a splice portion 66a and a pair of clamping

mechanisms

66b and 66c. The joint portion 66a makes the yarn Y of the yarn feed package P1 supported by the first bobbin 24a cross the yarn Y of the yarn feed package P1 supported by the second bobbin 24 b. The clamping

mechanisms

66b and 66c are provided at positions sandwiching the joint portion 66 a. The gripping

mechanisms

66b, 66c grip the yarn Y inserted in the chamber of the joint portion 66 a.

As shown in fig. 12 and 13, the first guide mechanism 67 locks and guides the yarn Y. The first guide mechanism 67 has a first hook 67a, a second hook 67b, and a third hook 67c. The first hook 67a, the second hook 67b, and the third hook 67c are provided swingably. The first hook 67a is provided with a potentiometer (not shown) for detecting the tension of the yarn Y. The joint device 60 controls the operation of the first motor 62b of the first rotation mechanism 62 based on the detection result of the potentiometer. That is, the yarn splicing device 60 adjusts the rotation amount (payout amount) of the yarn feed package P1 based on the detection result of the potentiometer, and pulls out the yarn Y from the yarn feed package P1 at a predetermined tension.

The second guide mechanism 68 engages and guides the yarn Y. The second guide mechanism 68 has a first hook 68a, a second hook 68b, and a third hook 68c. The first hook 68a, the second hook 68b, and the third hook 68c are provided swingably. The first hook 68a is provided with a potentiometer (not shown) for detecting the tension of the yarn Y. The joint device 60 controls the operation of the second motor 63b of the second rotation mechanism 63 based on the detection result of the potentiometer. That is, the yarn splicing device 60 adjusts the rotation amount (payout amount) of the yarn feed package P1 based on the detection result of the potentiometer, and pulls out the yarn Y from the yarn feed package P1 at a predetermined tension.

The joint operation of the joint device 60 will be described. Specifically, the case where the joint between the first yarn end Y1 on the outer layer side of the yarn feed package P1 supported by the first bobbin 24a and the second yarn end Y2 on the inner layer side of the yarn feed package P1 supported by the second bobbin 24b is performed by the joint device 60 will be described as an example.

When the joining operation is started, the joining device 60 operates the first bobbin 24a by the first rotating mechanism 62 and operates the second bobbin 24b by the second rotating mechanism 63, and rotates the splicer 10 to a position where the first yarn end Y1 and the second yarn end Y2 can be caught by the suction portion 61a, as shown in fig. 14. Specifically, in the first rotation mechanism 62, the first joint driver 62a is engaged with the first wheel 25j of the first bobbin 24a, and the first motor 62b is driven to rotate the first joint driver 62 a. Similarly, in the second rotating mechanism 63, the second joint driver 63a is engaged with the first wheel 25j of the second bobbin 24b, and the second motor 63b is driven to rotate the second joint driver 63 a. When the first joint driver 62a and the second joint driver 63a rotate, the yarn supply package P1 supported by each of the first bobbin 24a and the second bobbin 24b rotates, and the splicer 10 rotates in association with this. The joint device 60 detects a detection body (not shown) provided in the coupling 10 by a sensor (not shown), and controls the first motor 62b and the second motor 63b based on the detection result of the sensor, thereby rotating the coupling 10 to a predetermined position.

The yarn joining device 60 is configured such that, when the yarn joining device 10 is rotated, the yarn joining arm portion 61b of the catching guide mechanism 61 is operated, and the suction portion 61a catches the first yarn end Y1 from the yarn joining device 10 of the yarn feeding package P1 supported by the first bobbin 24a and catches the second yarn end Y2 from the yarn joining device 10 of the yarn feeding package P1 supported by the second bobbin 24 b. At this time, the yarn feeder package P1 is rotated by the yarn joining device 60 by operating the first bobbin 24a by the first rotating mechanism 62 and operating the second bobbin 24b by the second rotating mechanism 63. Thereby, the yarn Y is pulled out from the yarn feed package P1 at a predetermined tension.

The yarn splicing device 60 is configured such that the suction portion 61a hooks the yarn Y having the first yarn end Y1 to the first guide mechanism 67 and guides the yarn Y to the splicer 66, and hooks the yarn Y having the second yarn end Y2 to the second guide mechanism 68 and guides the yarn Y to the splicer 66. The yarn splicing device 60 performs a yarn splicing operation in the splicer 66 when the yarn Y is guided to the splicer 66. Thus, the yarn splicing device 60 splices the first yarn end Y1 on the outer layer side of the yarn feed package P1 supported by the first bobbin 24a and the second yarn end Y2 on the inner layer side of the yarn feed package P1 supported by the second bobbin 24 b.

The moving device 70 rotates and moves the collecting device 40, the supplying device 50, and the joint device 60. The moving device 70 moves the collecting device 40, the supplying device 50, and the joint device 60 to the working positions where the work is performed on the bobbin 24. The moving device 70 moves the collecting device 40 and the supplying device 50 to a work position where the holding unit 32 is operated. As shown in fig. 9, the moving device 70 includes a rotation support portion 71 and a replacement unit driving portion 72.

The rotation support portion 71 supports the recovery device 40, the supply device 50, and the joint device 60. The rotation support portion 71 is rotatably provided in the base 34 about a rotation axis extending in the vertical direction. The rotation support portion 71 supports the recovery device 40, the supply device 50, and the joint device 60 such that the recovery device 40, the supply device 50, and the joint device 60 are disposed in 3 different directions as viewed from the rotation axis direction of the rotation support portion 71.

The rotation support portion 71 has a wheel (not shown). The wheel is a mahalanobis intermittent wheel which forms a mahalanobis intermittent mechanism. The replacement unit driving section 72 rotates the rotation support section 71. The replacement unit driving section 72 is a mahalanobis intermittent driver constituting a mahalanobis intermittent mechanism. The replacement unit driving section 72 is rotated by rotation driving of a motor (not shown). The moving device 70 is configured to rotate the rotation support portion 71 by driving the replacement unit driving portion 72.

The moving device 70 stops the rotation support portion 71 at 7 places. The moving device 70 stops the rotation support portion 71 at: the recovery device 40 recovers the position of the yarn supplying bobbin B1 from the first bobbin 24 a; the recovery device 40 recovers the position of the yarn supplying bobbin B1 from the second bobbin 24B; the supply device 50 supplies the position of the yarn package P1 to the first bobbin 24 a; the supply device 50 supplies the position of the yarn feed package P1 to the second bobbin 24 b; the joint device 60 performs the joint position; the feeding device 50 obtains the position of the yarn package P1 from the holding unit 32; and the recovery device 40 supplies the position of the yarn supplying bobbin B1 to the holding unit 32.

Next, the splicer 66 will be specifically described.

As shown in fig. 15, the splicer 66 splices a first yarn YA (see fig. 21A) which is a yarn Y (one yarn) of the yarn feed package P1 supported by the first bobbin 24a and a second yarn YB (see fig. 21A) which is a yarn Y (the other yarn) of the yarn feed package P1 supported by the second bobbin 24 b. Splicer 66 is a splicer for synthetic fiber yarns. The splicer 66 includes a frame 102, a joint portion 66a, a pair of clamping

mechanisms

66b, 66c, a shutter mechanism 140, a cylindrical cam 150, and a motor 160.

The frame 102 is a member for holding each part of the splicer 66. The frame 102 is constituted by a plurality of plate-like members, for example. The joint portion 66a is fixed to the frame 102. As shown in fig. 15 and 16, the joint portion 66a includes a joint nozzle 112, a slit 113, a chamber (passage) 114, and an air flow path 116. The joint nozzle 112 is a block-shaped body formed of a metal or ceramic material. The slit 113 is provided in the joint nozzle 112. The slit 113 communicates with the chamber 114, and the slit 113 is a gap into which the first yarn YA and the second yarn YB can be inserted into the chamber 114. The slit 113 is formed across the upper surface of the joint nozzle 112 and the chamber 114. An inclined surface 115 for guiding the yarn to the slit 113 is provided at an upper portion of the slit 113.

The chamber 114 is a passage through which the first yarn YA and the second yarn YB pass. The chamber 114 extends through one side and the other side of the nipple 112. The penetration direction of the chamber 114 (hereinafter, also simply referred to as "penetration direction") is orthogonal to the insertion direction (hereinafter, also simply referred to as "insertion direction") in which the first yarn YA and the second yarn YB are inserted into the slit 113. The chamber 114 forms a space through which the first yarn YA and the second yarn YB can pass. In a cross section orthogonal to the penetration direction, the chamber 114 is circular.

The air flow path 116 circulates air supplied to the chamber 114. The air flow path 116 has an injection hole 116a that opens into the chamber 114. The injection hole 116a communicates the air flow path 116 with the chamber 114. Air is injected from the injection hole 116a to the chamber 114. A connection portion 118 is provided on the upstream side of the air flow path 116 (the side opposite to the injection hole 116 a). A supply pipe 119 for supplying air is connected to the connection portion 118.

As shown in fig. 15, 19 and 20, one clamping mechanism 66b includes a support portion 122, a first clamping portion 123, a third clamping portion 127 and a first cutter 129. The other clamping mechanism 66c includes a support portion 132, a second clamping portion 133, a fourth clamping portion 137, and a second cutter 139.

The support portion 122 has a rectangular parallelepiped (prismatic) shape. The support portion 122 supports the first clamp portion 123, the third clamp portion 127, and the first interrupter 129. The support 122 is swingably provided to the frame 102. A shaft 121 perpendicular to the penetrating direction is provided at one end portion of the support portion 122 in the longitudinal direction. The shaft 121 is fixed to the frame 102. The first clamp 123 and the third clamp 127 are accommodated in the support 122 from the center to the other end in the longitudinal direction.

The support portion 122 is provided with a recess 125. The recess 125 is provided at the other end of the support portion 122. The recess 125 exposes a portion of the first clamp 123 and the third clamp 127. The support portion 122 swings about the shaft 121 to move the first clamping portion 123 and the third clamping portion 127 in the penetrating direction (details will be described later).

The first clamping portion 123 is disposed on one side of the joint portion 66a in the penetrating direction. The first clamp 123 has a cylindrical shape and is formed of a metal such as SUS having abrasion resistance. The first clamp 123 clamps (clamps) the first yarn YA and the second yarn YB in a direction orthogonal to the penetrating direction and orthogonal to the axial direction of the shaft 121. Hereinafter, a direction orthogonal to the penetration direction and orthogonal to the axial direction of the shaft 121 is also referred to as a "sandwiching direction". The first clamping portion 123 includes a fixed side cylinder 123x and a movable side cylinder 123y. The fixed-side cylinder 123x and the movable-side cylinder 123y are arranged such that the end surfaces thereof face each other in the sandwiching direction. The fixed-side column 123x is fixed to the support 132. The movable-side cylinder 123y is provided to the support portion 132 so as to be movable in the sandwiching direction.

In the first clamping portion 123, the movable side cylinder 123y moves so as to approach the fixed side cylinder 123x, and the end surface of the fixed side cylinder 123x abuts against the end surface of the movable side cylinder 123y, thereby clamping the first yarn YA and the second yarn YB therebetween. In the first clamping portion 123, the movable side cylinder 123y moves away from the fixed side cylinder 123x, so that a gap is formed between the end surface of the fixed side cylinder 123x and the end surface of the movable side cylinder 123y, and the clamping is released. Such clamping by the first clamping portion 123 and release of the clamping can be achieved by various known techniques, for example, an air drive mechanism or a cam mechanism using air supplied from the outside. The first clamp 123 clamps the first yarn YA and the second yarn YB by a biasing member (not shown) such as a spring in the clamping direction.

The third clamping portion 127 is disposed on one side of the first clamping portion 123 in the penetrating direction. The third clamp portion 127 has a cylindrical shape and is formed of a metal such as SUS having abrasion resistance. The third clamp 127 clamps the first yarn YA in the clamping direction. The third clamp 127 includes a fixed side column 127x and a movable side column 127y. The fixed side column 127x and the movable side column 127y are arranged such that the end surfaces thereof face each other in the sandwiching direction. The fixed side column 127x is fixed to the support 132. The movable-side column 127y is provided to the support portion 132 so as to be movable in the sandwiching direction.

In the third clamping portion 127, the movable side column 127y moves so as to approach the fixed side column 127x, and the end surface of the fixed side column 127x abuts against the end surface of the movable side column 127y, thereby clamping the first yarn YA therebetween. In the third clamping portion 127, the movable side column 127y moves away from the fixed side column 127x, so that a gap is formed between the end face of the fixed side column 127x and the end face of the movable side column 127y, and the clamping is released. Such clamping by the third clamping portion 127 and release of the clamping can be achieved by various known techniques, for example, an air drive mechanism or a cam mechanism using air supplied from the outside. The third clamping portion 127 can clamp the first yarn YA by applying force in the clamping direction by a force application member (not shown) such as a spring. The force for clamping the first yarn YA by the third clamping portion 127 is smaller than the force for clamping the first yarn YA and the second yarn YB by the first clamping portion 123.

The first cutter 129 cuts the second yarn YB at a position on one side of the first clamp portion 123 in the penetrating direction. The first interrupter 129 is provided so as to be movable in the clamping direction between the first clamping portion 123 and the third clamping portion 127 of the support portion 132. The first cutter 129 moves to a position where the second yarn YB can be cut in conjunction with the operation of the first clamping portion 123 to clamp the first yarn YA and the second yarn YB. Specifically, the first interrupter 129 is coupled to the movable-side cylinder 123y of the first clamp 123. The first cutter 129 is located at a position crossing the second yarn YB in a state where the first clamping portion 123 clamps the first yarn YA and the second yarn YB. In this case, when the second yarn YB is moved to a side away from the first clamp 123 in the insertion direction, the second yarn YB is cut by the first cutter 129. On the other hand, in a state where the first clamping portion 123 releases the clamping of the first yarn YA and the second yarn YB, the first cutter 129 is located at a position apart from the second yarn YB in the clamping direction.

The support portion 132 has a rectangular parallelepiped (prismatic) shape. The support portion 132 supports the second clamping portion 133, the fourth clamping portion 137, and the second cutter 139. The support portion 132 is swingably provided on the frame 102. A shaft 131 perpendicular to the penetrating direction is provided at one end portion of the support portion 132 in the longitudinal direction. The shaft 131 is fixed to the frame 102. The second clamping portion 133 and the fourth clamping portion 137 are accommodated in the center portion to the other end portion in the longitudinal direction of the support portion 132.

The support portion 132 is provided with a recess 135. The recess 135 is provided at the other end of the support 132. The recess 135 exposes a portion of the second clamping portion 133 and the fourth clamping portion 137. The support portion 132 swings about the shaft 121 to move the second clamping portion 133 and the fourth clamping portion 137 in the penetrating direction (details will be described later).

The second clamping portion 133 is disposed on the other side of the joint portion 66a in the penetrating direction. The second clamping portion 133 has a cylindrical shape and is formed of a metal such as SUS having abrasion resistance. The second clamping portion 133 clamps the first yarn YA and the second yarn YB along the clamping direction. The second clamping portion 133 includes a fixed side cylinder 133x and a movable side cylinder 133y. The fixed-side cylinder 133x and the movable-side cylinder 133y are arranged such that the end surfaces thereof face each other in the sandwiching direction. The fixed-side column 133x is fixed to the support 132. The movable-side cylinder 133y is provided to the support portion 132 so as to be movable in the sandwiching direction.

In the second clamping portion 133, the movable side cylinder 133y moves so as to approach the fixed side cylinder 133x, and the end surface of the fixed side cylinder 133x abuts against the end surface of the movable side cylinder 133y, thereby clamping the first yarn YA and the second yarn YB therebetween. In the second clamping portion 133, the movable side cylinder 133y moves away from the fixed side cylinder 133x, so that a gap is formed between the end surface of the fixed side cylinder 133x and the end surface of the movable side cylinder 133y, and the clamping is released. Such clamping by the second clamping portion 133 and release of the clamping can be achieved by various known techniques, for example, an air drive mechanism or a cam mechanism using air supplied from the outside. The second clamping portion 133 clamps the first yarn YA and the second yarn YB by a biasing member (not shown) such as a spring in a clamping direction. The force for clamping the first yarn YA and the second yarn YB by the second clamping portion 133 is equal to the force for clamping the first yarn YA and the second yarn YB by the first clamping portion 123.

The fourth clamping portion 137 is disposed on the other side of the second clamping portion 133 in the penetrating direction. The fourth holding portion 137 has a cylindrical shape and is formed of a metal such as SUS having abrasion resistance. The fourth clamping portion 137 clamps the second yarn YB along the clamping direction. The fourth clamping portion 137 includes a fixed side cylinder 137x and a movable side cylinder 137y. The fixed side column 137x and the movable side column 137y are arranged so that the end surfaces thereof face each other in the sandwiching direction. The fixed-side column 137x is fixed to the support 132. The movable-side column 137y is provided to the support portion 132 so as to be movable in the sandwiching direction.

In the fourth clamping portion 137, the movable side column 137y moves so as to approach the fixed side column 137x, and the end surface of the fixed side column 137x abuts against the end surface of the movable side column 137y, thereby clamping the second yarn YB therebetween. In the fourth clamping portion 137, the movable side cylinder 137y moves away from the fixed side cylinder 137x, so that a gap is formed between the end face of the fixed side cylinder 137x and the end face of the movable side cylinder 137y, and the clamping is released. Such clamping by the fourth clamping portion 137 and release of the clamping can be achieved by various known techniques, for example, an air drive mechanism or a cam mechanism using air supplied from the outside. The fourth clamp 137 clamps the second yarn YB by a biasing member (not shown) such as a spring in the clamping direction. The force for clamping the second yarn YB by the fourth clamping portion 137 is smaller than the force for clamping the first yarn YA and the second yarn YB by the second clamping portion 133. The force for clamping the second yarn YB by the fourth clamping portion 137 is equal to the force for clamping the first yarn YA by the third clamping portion 127.

The second cutter 139 cuts the first yarn YA at a position on the other side of the second clamping portion 133 in the penetrating direction. The second cutter 139 is provided so as to be movable in the clamping direction between the second clamping portion 133 and the fourth clamping portion 137 of the support portion 132. The second cutter 139 moves to a position where the first yarn YA can be cut in conjunction with the operation of the second clamping portion 133 to clamp the first yarn YA and the second yarn YB. Specifically, as shown in fig. 18A and 18B, the second cutter 139 is coupled to the movable-side cylinder 133y of the second clamp 133. The second cutter 139 is located at a position crossing the first yarn YA in a state where the second clamping portion 133 clamps the first yarn YA and the second yarn YB. In this case, when the first yarn YA is moved to the side away from the second nip 133 in the insertion direction, the first yarn YA is cut by the second cutter 139. On the other hand, in a state where the second clamp 133 releases the clamp of the first yarn YA and the second yarn YB, the second cutter 139 is located at a position apart from the first yarn YA in the clamping direction.

As shown in fig. 15, 17, and 20, the shutter mechanism 140 constitutes a shutter portion capable of closing at least a part of the chamber 114 of the joint portion 66 a. The shutter mechanism 140 closes one of the first clamp 123 and the second clamp 133 of the chamber 114, which is farther from the joint 66a, when the first yarn YA and the second yarn YB are entangled with each other by the joint 66 a. The shutter mechanism 140 includes: the first shutter 141 is disposed on one side of the joint portion 66a in the penetrating direction; and a second shutter 142 disposed on the other side of the joint portion 66a in the penetrating direction.

The first shutter 141 can close one side of the chamber 114 in the penetrating direction. The second shutter 142 can close the other side of the penetration direction of the chamber 114. The first shutter 141 and the second shutter 142 have a plate shape. The first shutter 141 opens and closes between an open state in which one side in the penetrating direction of the chamber 114 is opened and a closed state in which one side in the penetrating direction of the chamber 114 is closed by the tip portion thereof. The second shutter 142 opens and closes between an open state in which the other side in the penetration direction of the chamber 114 is opened and a closed state in which the other side in the penetration direction of the chamber 114 is closed by the tip end portion thereof. The shutter mechanism 140 is configured to put one of the first shutter 141 and the second shutter 142 in a closed state (details will be described later) at the time of the intersection by the joint 66 a.

The cylindrical cam 150 has a cylindrical shape. The cylindrical cam 150 is rotatably supported by the frame 102 with a rotation shaft extending in the penetrating direction as a base shaft. A first cam groove 151 and a second cam groove 152 are formed on the outer peripheral surface of the cylinder cam 150. A gate annular groove 153 is formed between the first cam groove 151 and the second cam groove 152 on the outer peripheral surface of the cylinder cam 150.

As shown in fig. 19, a first clamp follower (first follower) 154 is engaged with the first cam groove 151. The first clamping portion follower 154 is coupled to a central portion in the longitudinal direction of the support portion 122 of the clamping mechanism 66 b. The first clamp follower 154 follows the first cam groove 151. The first cam groove 151 causes the cylindrical cam 150 to rotate, thereby causing the first clamp follower 154 to follow in a desired manner, and thus, the support 122 to be described later is moved.

A second clamp follower (second follower) 155 is engaged with the second cam groove 152. The second clamping portion follower 155 is connected to the center portion of the clamping mechanism 66c in the longitudinal direction of the support portion 132. The second clamp follower 155 follows the second cam groove 152. The second cam groove 152 is configured to move the support portion 132 described later by rotating the cylindrical cam 150 to cause the second clamp follower 155 to follow in a desired manner.

As shown in fig. 17, a first shutter follower (follower) 157 and a second shutter follower (follower) 158 are engaged with the shutter annular groove 153. The first shutter follower 157 and the second shutter follower 158 are attached to the frame 102 so as to be swingable about a shaft 159.

One side of the first shutter follower 157 is coupled to the base end portion of the first shutter 141 of the shutter mechanism 140. The other side of the first shutter follower 157 abuts against the bottom surface of the shutter annular groove 153. One side of the second shutter follower 158 is coupled to the base end portion of the second shutter 142 of the shutter mechanism 140. The other side of the second shutter follower 158 abuts against the bottom surface of the shutter annular groove 153. The first shutter follower 157 and the second shutter follower 158 move in accordance with the height of the bottom surface of the shutter annular groove 153. The first shutter follower 157 and the second shutter follower 158 are biased by the torsion spring 159a so as to swing in the opening direction in which the first shutter 141 and the second shutter 142 are opened.

A ridge 156 is formed on the bottom surface of the gate annular groove 153. When the first shutter follower 157 and the second shutter follower 158 ride on the ridge 156, the first shutter follower 157 and the second shutter follower 158 swing in the closing direction (swing direction opposite to the opening direction), and the first shutter 141 and the second shutter 142 are closed. When the first shutter follower 157 and the second shutter follower 158 come into contact with the portions of the bottom surface of the shutter annular groove 153 other than the ridge 156, the first shutter follower 157 and the second shutter follower 158 swing in the opening direction, and the first shutter 141 and the second shutter 142 are opened. The shutter annular groove 153 rotates the cylindrical cam 150 to swing the first shutter follower 157 and the second shutter follower 158 in a desired manner, thereby opening and closing the first shutter 141 and the second shutter 142 described later.

The motor 160 is a driving source for rotationally driving the cylindrical cam 150. The motor 160 is supported by the frame 102. The rotation of the motor 160 is controlled by a control unit (not shown). In the above, the cylinder cam 150, the first clamping portion follower 154, the second clamping portion follower 155, and the motor 160 constitute a moving mechanism 170 that moves the first clamping portion 123 and the second clamping portion 133 in the penetrating direction, respectively. The cylindrical cam 150 constitutes a shutter cam. The cylinder cam 150, the first shutter follower 157, the second shutter follower 158, and the motor 160 constitute an opening/closing mechanism 180 for opening/closing the shutter mechanism 140.

Next, an example of the operation of the splicer 66 will be described with reference to fig. 20A to 28.

In fig. 20A to 28, for convenience of explanation, the movement of the

support portions

122 and 132 by the swinging of the clamping

mechanisms

66b and 66c is represented as linear movement along the penetration direction. In the following description, for convenience of description, one side in the penetration direction is referred to as "left side", and the other side in the penetration direction is referred to as "right side". The movement of the support portion 122 corresponds to the movement of the first clamping portion 123 and the third clamping portion 127, and the movement of the support portion 132 corresponds to the movement of the second clamping portion 133 and the fourth clamping portion 137.

As shown in fig. 20A, in the initial state, the first to

fourth clamping portions

123, 133, 127, 137 are in a state of being released from clamping, the support portion 122 is close to the joint portion 66a, and the support portion 132 is close to the joint portion 66 a. The first shutter 141 and the second shutter 142 are opened. In the initial state, for example, the first yarn YA and the second yarn YB are inserted into the chamber 114 by the catching guide mechanism (yarn catching guide portion) 61, and the first yarn YA and the second yarn YB are passed through between the fixed

side cylinders

123x, 133x, 127x, 137x and the

movable side cylinders

123y, 133y, 127y, 137y of the first to

fourth sandwiching portions

123, 133, 127, 137.

As shown in fig. 20B, the first clamping portion 123 and the second clamping portion 133 are brought into a clamped state, and the first yarn YA and the second yarn YB are clamped by the first clamping portion 123 and the second clamping portion 133, respectively. At this time, the first cutter 129 and the second cutter 139 are interlocked, and the first cutter 129 moves on the second yarn YB and the second cutter 139 moves on the first yarn YA.

As shown in fig. 21A, the yarn end side of the first yarn YA is lifted away from the second clamping portion 133, and the yarn end side of the second yarn YB is lifted away from the first clamping portion 123. Thereby, the first yarn YA is cut by the second cutter 139, and the second yarn YB is cut by the first cutter 129.

As shown in fig. 21B, the third clamp 127 and the fourth clamp 137 are brought into a clamped state, the first yarn YA is clamped by the third clamp 127, and the second yarn YB is clamped by the fourth clamp 137. As shown in fig. 22A, the

support portions

122 and 132 are moved away from the joint portion 66 a. As a result, in a state in which the first yarn YA and the second yarn YB are held by the first holding portion 123 and the second holding portion 133, the first holding portion 123 and the second holding portion 133 are moved in the penetrating direction so that the distance between the first holding portion 123 and the second holding portion 133 (the distance in the penetrating direction) is increased, and the first yarn YA and the second yarn YB between the first holding portion 123 and the second holding portion 133 are stretched to, for example, 1.6 times (stretching process).

As shown in fig. 22B, the

support portions

122 and 132 are moved so as to approach the joint portion 66 a. Accordingly, in a state in which the first yarn YA and the second yarn YB are held by the first holding portion 123 and the second holding portion 133, the first holding portion 123 and the second holding portion 133 are moved in the penetrating direction so that the distance between the first holding portion 123 and the second holding portion 133 is narrowed, and the stretched portion formed by stretching the first yarn YA and the second yarn YB by the stretching treatment is relaxed. Thereafter or simultaneously therewith, the drawn portions of the first yarn YA and the second yarn YB are entangled by the joint portion 66a (first interlacing process). As shown in fig. 23A, the support 122 is moved to the left, and the slack in the complex M1 of the first yarn YA and the second yarn YB formed by the first complex treatment is removed.

As shown in fig. 23B, the second clamping portion 133 clamps the first yarn YA and the second yarn YB. The support portion 122 is further moved to the left, and the first clamp portion 123 and the third clamp portion 127 are moved to the left. Thereby, the first yarn YA and the second yarn YB are pulled by the first clamp 123 and the third clamp 127, and the first yarn YA and the second yarn YB are shifted to the left. That is, in a state in which the first yarn YA and the second yarn YB are held by the first holding portion 123 and the holding by the second holding portion 133 is released, the first holding portion 123 is moved to the left, and the first portion K1 of the first yarn YA and the second yarn YB held by the second holding portion 133 before the release is moved to the left (first movement process). As a result, the first portion K1 passes through the chamber 114 of the joint 66 a.

As shown in fig. 24A, the support 122 moved to the left is returned to the right by a smaller amount than the movement amount. Thereby, the complex M1 and the first portion K1 are loosened. The first shutter 141 is closed and the second shutter 142 is opened. As shown in fig. 24B, the first yarn YA and the first portion K1 of the second yarn YB are entangled by the joint portion 66a to form an entangled portion M2 (second entanglement process). In the second winding process, the left side of the chamber 114 (the side of the first clamping portion 123 and the second clamping portion 133 farther from the joint portion 66 a) is closed by the first shutter 141 of the shutter mechanism 140.

As shown in fig. 25A, the first shutter 141 is opened, and the support 122 is moved leftward, so that the slack in the complex M1 and the complex M2 is removed. As shown in fig. 25B, the second clamping portion 133 is clamped, the supporting

portions

122 and 132 are simultaneously moved rightward, and the first to

fourth clamping portions

123, 133, 127, 137 are simultaneously moved rightward.

As shown in fig. 26A, the first yarn YA and the second yarn YB are released from the first clamping portion 123. The support portion 132 is further moved rightward, and the second clamping portion 133 and the fourth clamping portion 137 are moved rightward. Thereby, the first yarn YA and the second yarn YB are pulled by the second grip portion 133 and the fourth grip portion 137, and the first yarn YA and the second yarn YB are shifted to the right. That is, in a state in which the first yarn YA and the second yarn YB are held by the second holding portion 133 and the holding by the first holding portion 123 is released, the second holding portion 133 is moved rightward, and the second portion K2 of the first yarn YA and the second yarn YB held by the first holding portion 123 before the release is moved rightward (second movement process). As a result, the second portion K2 passes through the chamber 114 of the joint 66 a.

As shown in fig. 26B, the support portion 132 after the rightward movement is returned to the left by a movement amount smaller than the movement amount. This slacks the complex M1, M2 and the second portion K2. As shown in fig. 27A, the first shutter 141 is opened and the second shutter 142 is closed. As shown in fig. 27B, the first yarn YA and the second portion K2 of the second yarn YB are entangled by the joint portion 66a to form an entangled portion M3 (third entanglement process). In the third intersection, the right side of the chamber 114 (the side of the first clamping portion 123 and the second clamping portion 133 farther from the joint portion 66 a) is closed by the second shutter 142 of the shutter mechanism 140. Then, the second shutter 142 is opened.

As shown in fig. 28, the

support portions

122 and 132 are moved to positions at which the amounts stretched in the stretching process are equally distributed with respect to the initial positions thereof. Finally, all of the first to

fourth clamping portions

123, 133, 127, 137 are released, and the process ends.

As described above, in the splicer 66, the first yarn YA and the second yarn YB can be entangled by the first interlacing process. In addition, the first portion K1 gripped by the second gripping portion 133 of the first yarn YA and the second yarn YB can be pulled by the first gripping portion 123 to move and can be entangled by the second entanglement processing. Thereby, the length of the yarn end protruding from the intersection of the first yarn YA and the second yarn YB can be shortened. The yarn tail passing rate can be improved.

In the splicer 66, before the first interlacing process, in a state in which the first yarn YA and the second yarn YB are respectively clamped by the first clamp 123 and the second clamp 133, at least one of the first clamp 123 and the second clamp 133 is moved in the penetrating direction so that the interval between the first clamp 123 and the second clamp 133 is increased, and a stretching process for stretching the first yarn YA and the second yarn YB is performed. In the first interlacing treatment, the first yarn YA and the second yarn YB are interlaced with each other at a stretch portion formed by stretching in the stretching treatment. This can suppress thickening of the cross-over portions of the first yarn YA and the second yarn YB compared with other portions.

The splicer 66 performs the following second movement process: after the second interlacing process, the second clamping portion 133 is moved to the other side in the penetrating direction in a state where the first yarn YA and the second yarn YB are clamped by the second clamping portion 133 and the clamping by the first clamping portion 123 is released, and the second portion K2 of the first yarn YA and the second yarn YB clamped by the first clamping portion 123 before the release is moved to the other side in the penetrating direction. The joint portion 66a performs the following third intersection processing: after the second movement process, the first yarn YA and the second portion K2 of the second yarn YB are entangled. Thus, the second portion K2 clamped by the first clamping portion 123 in the first yarn YA and the second yarn YB can be pulled and moved by the second clamping portion 133, and can be entangled by the third entanglement processing. As a result, the length of the yarn end protruding from the intersection of the first yarn YA and the second yarn YB can be shortened.

The splicer 66 includes a third clamp portion 127 and a fourth clamp portion 137. In this case, the yarn Y can be prevented from being separated from the chamber 114 of the joint portion 66a by the pinching by the third pinching portion 127 and the fourth pinching portion 137. Further, since the force for holding the yarn Y by the third holding portion 127 and the fourth holding portion 137 is smaller than the force for holding the yarn Y by the first holding portion 123 and the second holding portion 133, the yarn Y (the first yarn YA and the second yarn YB) is easily pulled and moved by the first moving process or the second moving process, for example.

The splicer 66 includes a first cutter 129 and a second cutter 139. Thereby, the length of the yarn end protruding from the intersection of the first yarn YA and the second yarn YB can be further shortened. Further, the yarn end can be joined so as not to protrude from the interlacing portion (so that the yarn end is wound around the core yarn side and buried). Further, the yarn end can be made 0mm. Further, compared with the case where the yarn ends are manually cut, the influence on the throughput due to the difference in the proficiency can be suppressed.

In the splicer 66, the first cutter 129 moves to a position where the second yarn YB can be cut in conjunction with the operation of the first clamping portion 123 to clamp the first yarn YA and the second yarn YB. The second cutter 139 moves to a position where the first yarn YA can be cut in conjunction with the operation of the second clamping portion 133 to clamp the first yarn YA and the second yarn YB. This enables the first and

second disconnectors

129 and 139 to operate efficiently.

In the splicer 66, the first clamp portion 123 and the second clamp portion 133 are configured to be swingable about

shafts

121, 131 intersecting the penetrating direction, respectively. The moving mechanism 170 includes: a cylinder cam 150 having a first cam groove 151 and a second cam groove 152; a first clamping portion follower 154 that follows the first cam groove 151; a second clamping portion follower 155 that follows the second cam groove 152; and a motor 160 for rotationally driving the cylinder cam 150. According to this configuration, the first clamp portion 123 and the second clamp portion 133 can be moved in the penetrating direction by the movement mechanism 170 serving as a cam mechanism to swing the first clamp portion 123 and the second clamp portion 133.

The embodiments of the present invention have been described above, but the present invention is not necessarily limited to the above embodiments, and various modifications can be made without departing from the gist thereof.

In the above embodiment, the first to

fourth clamping portions

123, 133, 127, 137 are not limited to the cylindrical shape as long as they can clamp the yarn Y, and may have various shapes (for example, prismatic shape). In the above embodiment, the moving mechanism 170 is not particularly limited, and various known moving mechanisms may be used. In the above embodiment, the opening and closing mechanism 180 is not particularly limited, and various known opening and closing mechanisms may be used. In the above embodiment, the shutter mechanism 140 has the first shutter 141 and the second shutter 142, but the shutter mechanism 140 may have only one of the first shutter 141 and the second shutter 142.

In the above embodiment, the description has been made taking, as an example, a manner in which the

support portions

122 and 132 swing around the

shafts

121 and 131, and thereby the first clamping portion 123 and the second clamping portion 133 are moved in the penetrating direction, respectively. However, the

support portions

122 and 132 may be moved in parallel to each other in the direction approaching each other and the direction separating from each other, for example. In the above embodiment, the diameter of the chamber 114 and the diameter of the injection hole 116a can be changed by replacing the joint portion 66 a.

Claims

1. A splicer for synthetic fiber yarns, which performs a splice between one yarn and the other yarn formed of synthetic fibers, is provided with:

a joint portion having a passage for connecting the one yarn and the other yarn, which pass through the passage, and forming a space through which the one yarn and the other yarn can pass;

a first clamping portion arranged on one side of the joint portion in a penetrating direction of the passage and clamping the one yarn and the other yarn;

a second clamping portion arranged on the other side of the joint portion in the penetrating direction and clamping the one yarn and the other yarn; and

A moving mechanism for moving the first clamping portion and the second clamping portion along the penetrating direction,

the moving mechanism performs a first moving process as follows:

in a state in which the one yarn and the other yarn are held by the first holding portion and the holding by the second holding portion is released, the first holding portion is moved to one side in the penetrating direction, and a first portion of the one yarn and the other yarn held by the second holding portion before the release is moved to one side in the penetrating direction,

the joint portion is implemented by:

a first interlacing process for interlacing the one yarn and the other yarn before the first moving process; and

and a second interlacing process for interlacing the first portion of the one yarn and the other yarn after the first moving process.

2. The splicer for synthetic fiber yarns according to claim 1, wherein,

before the first interlacing process, the moving mechanism performs a stretching process as follows:

in a state in which the one yarn and the other yarn are held by the first holding portion and the second holding portion, respectively, at least one of the first holding portion and the second holding portion is moved in the penetrating direction so that a space between the first holding portion and the second holding portion is enlarged, and the one yarn and the other yarn are stretched,

In the first interlacing process, the drawn portion of the one yarn and the other yarn drawn by the drawing process is interlaced.

3. The splicer for synthetic fiber yarns according to claim 1 or 2, wherein,

the moving mechanism performs a second moving process as follows:

after the second interlacing process, the second clamping portion is moved to the other side in the penetrating direction in a state in which the one yarn and the other yarn are clamped by the second clamping portion and the clamping by the first clamping portion is released, and the second portion of the one yarn and the other yarn clamped by the first clamping portion before the release is moved to the other side in the penetrating direction,

the joint portion performs a third intersection process as follows: after the second movement treatment, the second portions of the one yarn and the other yarn are entangled.

4. The splicer for synthetic fiber yarns according to claim 1 or 2, further comprising:

a third clamping portion arranged on one side of the first clamping portion in the penetrating direction and clamping the one yarn; and

A fourth clamping portion arranged on the other side of the second clamping portion in the penetrating direction and clamping the other yarn,

the force for clamping the yarn by the third clamping part and the fourth clamping part is smaller than the force for clamping the yarn by the first clamping part and the second clamping part.

5. The splicer for the synthetic fiber yarn according to claim 3, further comprising:

6. The splicer for synthetic fiber yarns according to claim 1 or 2, further comprising:

a first cutter configured to cut the other yarn at a position on one side of the first clamping portion in the penetrating direction; and

and a second cutter configured to cut the one yarn at a position on the other side of the second clamping portion in the penetrating direction.

7. The splicer for the synthetic fiber yarn according to claim 3, further comprising:

8. The splicer for synthetic fiber yarns according to claim 4, further comprising:

9. The splicer for synthetic fiber yarns according to claim 5, further comprising:

10. The splicer for synthetic fiber yarns according to claim 6, wherein,

The first cutter moves to a position where the first cutter can cut the other yarn in conjunction with the operation of the first clamping portion to clamp the one yarn and the other yarn,

the second cutter moves to a position where the one yarn can be cut, in conjunction with the operation of the second clamping portion to clamp the one yarn and the other yarn.

11. The splicer for synthetic fiber yarns according to claim 7, wherein,

12. The splicer for synthetic fiber yarns according to claim 8, wherein,

13. The splicer for synthetic fiber yarns according to claim 9, wherein,

14. The splicer for synthetic fiber yarns according to claim 1 or 2, wherein,

the first clamping portion and the second clamping portion are each configured to be swingable about an axis intersecting the penetrating direction,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

a first follower coupled to the first clamp portion and driven along the first cam groove;

a second follower coupled to the second clamp portion and driven along the second cam groove; and

And a motor for rotationally driving the cylindrical cam.

15. The splicer for synthetic fiber yarns according to claim 3, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.

16. The splicer for synthetic fiber yarns according to claim 4, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

And a motor for rotationally driving the cylindrical cam.

17. The splicer for synthetic fiber yarns according to claim 5, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.

18. The splicer for synthetic fiber yarns according to claim 6, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

And a motor for rotationally driving the cylindrical cam.

19. The splicer for synthetic fiber yarns according to claim 7, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.

20. The splicer for synthetic fiber yarns according to claim 8, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

And a motor for rotationally driving the cylindrical cam.

21. The splicer for synthetic fiber yarns according to claim 9, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.

22. The splicer for synthetic fiber yarns according to claim 10, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

And a motor for rotationally driving the cylindrical cam.

23. The splicer for synthetic fiber yarns according to claim 11, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.

24. The splicer for synthetic fiber yarns according to claim 12, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

And a motor for rotationally driving the cylindrical cam.

25. The splicer for synthetic fiber yarns according to claim 13, wherein,

the moving mechanism includes:

a cylinder cam having a first cam groove and a second cam groove;

and a motor for rotationally driving the cylindrical cam.