CN112301483B - Joint system for synthetic fiber yarn - Google Patents

Abstract

The present invention relates to a joint system for synthetic fiber yarns. A package replacement device (7) is provided with: a splicer (66) for splicing the yarn end (Y1) to the yarn end (Y2); the first hooks (67 a, 68 a) and the second hooks (67 b, 68 b) are provided so that when the tension acting on the yarn (Y) becomes greater than a predetermined value, the amount of movement from the initial state increases in accordance with the tension, and when the tension acting on the yarn (Y) is equal to or less than the predetermined value, the force is applied so as to return to the initial state; a first motor (62 b) and a second motor (63 b) for driving a bobbin (24) which supports the yarn supply package (P1) so as to be rotatable; and a drive control unit (90 a) that controls the first motor (62 b) and the second motor (63 b) so that the movable amount thereof becomes a first predetermined range, and that controls the amount of yarn (Y) that is discharged from the yarn supply package (P1).

Description

Joint system for synthetic fiber yarn

Technical Field

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

Background

A false twist processing machine is known in which a plurality of synthetic fiber yarns supplied from a yarn supply package are false twisted, and the synthetic fiber yarns after being processed are wound in a winding device to form a winding package (for example, patent document 1: japanese patent application laid-open No. 6-200434). In a false twisting machine, in a creel for holding a plurality of yarn packages, in order to continuously supply synthetic fiber yarn, a bobbin (corresponding to english: peg) for holding the yarn packages is used in groups of 2. In this configuration, the synthetic fiber yarn on the inner layer side of the yarn feed package supported by one bobbin and the synthetic fiber yarn on the outer layer side of the yarn feed package supported by the other bobbin are connected. Thus, in the creel, even if the synthetic fiber yarn of one yarn supply package is used up, the synthetic fiber yarn can be supplied from the other yarn supply package, and thus the synthetic fiber yarn can be continuously supplied.

In such a configuration, when the synthetic fiber yarn of the yarn feed package is used up, it is necessary to supply a new package and simultaneously perform a joint between the synthetic fiber yarn of the yarn feed package supported by one bobbin and the synthetic fiber yarn of the yarn feed package supported by the other bobbin. Such a joint operation (tail joining operation) is generally performed by a human hand. Patent document 2 (japanese patent application publication No. 7-68010) discloses a work carriage provided so as to be able to travel along such a creel for a worker who performs replacement of yarn-feeding packages and joint riding.

There is a desire to perform the above-described joint work by the apparatus without going through a human hand. In this case, it is necessary to draw the synthetic fiber yarn from each of the pair of yarn supply packages and guide the yarn to the joint portion of the yarn splicing device for interlacing the synthetic fiber yarn. In this case, when the tension applied to the synthetic fiber yarn exceeds a predetermined range, the yarn is damaged, and the quality of the entangled portion is lowered. As a result, when the passing rate of quality inspection of the entangled portion in the downstream process becomes low, the production efficiency of the wound package in the false twist processing machine is lowered.

Disclosure of Invention

Accordingly, an object of one embodiment of the present invention is to provide a yarn splicing system for synthetic fiber yarns, which is capable of pulling out yarn ends of a yarn feed package and guiding the yarn ends to a splicing device while maintaining tension applied to the synthetic fiber yarns in a fixed range.

The joint system for synthetic fiber yarn according to an aspect of the present invention is used for a textile machine including: a creel for supporting a yarn supply package formed by winding synthetic fiber yarn composed of synthetic fiber around a bobbin in a yarn supply package supporting part; a processing device for processing the synthetic fiber yarn supplied from the yarn supply package; and a winding device for winding the synthetic fiber yarn after the processing is applied to form a winding package, wherein the synthetic fiber yarn splicing system is used for respectively drawing yarn ends from 2 yarn supply packages which are 1 group and are supported by the yarn supply package supporting part, and splicing the yarn ends, and the synthetic fiber yarn splicing system comprises: a joint section for winding a first yarn end, which is a yarn end of one yarn feeding package, and a second yarn end, which is a yarn end of the other yarn feeding package; a guide portion for guiding the first yarn end and the second yarn end to the joint portion; a locking portion which is provided to lock the synthetic fiber yarn to the locking portion when the guide portion guides the first yarn end and the second yarn end to the joint portion, and which is configured to increase a movable amount from an initial state in response to a tension applied to the synthetic fiber yarn when the tension applied to the synthetic fiber yarn becomes greater than a predetermined value, and to be biased to return to the initial state when the tension applied to the synthetic fiber yarn is equal to or less than the predetermined value; an operation mechanism for driving a yarn feed package support unit for rotatably supporting a yarn feed package in a creel in a paying-out direction; a travel unit for moving the support head, the guide portion, the locking portion, and the base of the operating mechanism along the creel; an acquisition unit that acquires the amount of movement of the locking unit relative to the base; and a drive control unit for controlling the operating mechanism so that the movable amount becomes a first predetermined range and controlling the discharge amount of the synthetic fiber yarn discharged from the yarn supply package.

The term "yarn feeding direction" as used herein includes not only the direction in which the synthetic fiber yarn is fed from the yarn feeding package but also the direction in which the synthetic fiber yarn is rewound into the yarn feeding package. In the synthetic fiber yarn splicing system having such a configuration, the yarn feed package can be rotated in the paying-out direction, so that tension generated in the yarn can be relaxed when the yarn is pulled out from the yarn feed package by the guide portion. In the synthetic fiber yarn splicing system having this configuration, the tension generated when the yarn end of the yarn feeding package is guided to the splicing device is acquired by the locking portion, and the amount of the yarn feeding package discharged is controlled based on the acquired tension. Thus, the yarn end of the yarn feeding package can be pulled out and guided to the yarn splicing device while maintaining the tension applied to the synthetic fiber yarn in a fixed range.

The joint system for a synthetic fiber yarn according to an aspect of the present invention may further include: a recovery device for recovering the bobbin supported by the yarn supply package supporting part; and a supply device for mounting the yarn supply package to the yarn supply package support portion, wherein the recovery device and the supply device are supported on the base. In this configuration, the replacement work and the splicing work of the yarn-feeding package held by the creel can be performed by the splicing system for the synthetic fiber yarn without using a human hand.

In the yarn splicing system for synthetic fiber yarn according to an aspect of the present invention, the locking portion may be provided so as to be swingable with respect to the base, and the obtaining portion may be provided so as to obtain the amount of swing of the locking portion with respect to the base in response to the tension applied to the synthetic fiber yarn becoming greater than a predetermined value, in response to the tension, the amount of swing from the initial state being increased. In this configuration, the locking portion structure can be easily and compactly configured to be movable so that the amount of swing from the initial state increases according to the tension.

In the synthetic fiber yarn splicing system according to an aspect of the present invention, the locking portion may be provided so as to be movable within a range larger than the first predetermined range. In this configuration, even if a tension greater than the first predetermined range acts on the locking portion, the swing corresponding to the tension can be performed. Thus, even if a tension greater than the first predetermined range is applied to the locking portion unintentionally, the tension can be relaxed, and damage or cutting of the synthetic fiber yarn can be reduced.

In the synthetic fiber yarn splicing system according to an aspect of the present invention, the locking portion may include: a first locking part for locking the synthetic fiber yarn wound on one yarn supply package; and a second locking part for locking the synthetic fiber yarn wound on the other yarn supply package. In this configuration, the tension of both the synthetic fiber yarn pulled out from one yarn feed package and the synthetic fiber yarn pulled out from the other yarn feed package can be appropriately adjusted.

In one aspect of the present invention, the yarn end of the yarn feeding package can be pulled out and guided to the yarn splicing device while maintaining the tension applied to the synthetic fiber yarn in a fixed range.

Drawings

Fig. 1 is a diagram showing a structure 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 and 8B are perspective views 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 the joint device and the catching guide mechanism.

Fig. 16 is a perspective view showing a configuration of one hook of the second guide mechanism.

Fig. 17 is a functional block diagram showing a functional configuration of the joint device.

Fig. 18 is a perspective view showing the joint device and the catching guide mechanism.

Fig. 19A and 19B are perspective views showing a second guide mechanism locked to the yarn.

Fig. 20 is a perspective view showing the joint device and the catching guide mechanism.

Fig. 21 is a perspective view showing the joint device and the catching guide mechanism.

Description of the reference numerals: 7. the package changing device (yarn splicing system) 20, the creel 30, the traveling carriage (traveling unit) 40, the recovery device 50, the supply device 60, the device 61, the catch guide mechanism (guide portion), 61d, the suction nozzle 61e, the hook portion, 64, the splicing mechanism 65, the base, 67a, the first hook (catch portion, 2 nd catch portion), 67b, the second hook (catch portion, 2 nd catch portion), 68a, the first hook (catch portion, 1 st catch portion), 68b, the second hook (catch portion, 1 st catch portion), 90, the control portion, 90a, the drive control portion, 90b, the determining portion 162, the rotary guide, 164, the potentiometer (take-up portion), 165, the rotary solenoid, b1, the yarn supply bobbin, p1, the yarn supply package, p61, the inspection position, Y0. continuous yarn (continuous synthetic yarn), Y1. yarn end (first end), Y2. yarn end (second yarn splicing portion), YC..

Detailed Description

Hereinafter, a preferred embodiment 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 (textile 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 (joint system for synthetic fiber yarns) 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 (processing device) 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 bobbin cores 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 (guide portion) 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 rotation direction of the yarn feed package P1 described herein includes not only the direction in which the yarn Y is fed from the yarn feed packages P1 and P2 (feeding direction), but also the direction in which the yarn Y is rewound into the yarn feed packages P1 and P2 (rewinding direction).

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 structure of the first rotation mechanism 62 and the second rotation mechanism 63 will be described in more detail later.

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 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 includes a first hook (locking portion, 2 nd locking portion) 67a, a second hook (locking portion, 2 nd locking portion) 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 (acquisition unit) 164 (see fig. 16) 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 164, 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 (locking portion, 1 st locking portion) 68a, a second hook (locking portion, 1 st locking portion) 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 164 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 164. 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 164, 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.

While the entire false twist processing system 1 has been described above, the package replacement apparatus 7, which is one of the features of the present invention, will be described in more detail below. First, the first guide mechanism 67 and the second guide mechanism 68 will be described in more detail. In addition, the first hook 67a, the second hook 67b, the third hook 67c, the first hook 68a, the second hook 68b, and the third hook 68c are each different in the position and the orientation of arrangement, but are identical in configuration. Accordingly, as shown in fig. 16, only the second hook 68b will be described in detail, and the detailed description of the remaining first, second, third, first and third hooks 67a, 67b, 67c, 68a and 68c will be omitted. In the following, the case where the potentiometer 164 is provided in each of the first hook 67a, the second hook 67b, the third hook 67c, the first hook 68a, the second hook 68b, and the third hook 68c is described, but the potentiometer 164 may be provided only in the first hook 67a and the first hook 68a, for example.

As shown in fig. 15, the second hooks 68b are inserted into insertion grooves 65b formed in a base plate 65a, which is a part of the base 65. As shown in fig. 16, the second hook 68b is provided so that a front end 68bb disposed above the base plate 65a swings about a base end 68ba disposed below the base plate 65a as a swing axis. The base end portion 68ba is fixed to a rotation guide 162, and the rotation guide 162 is provided rotatably with respect to a rotation shaft 161a fixed to a part of the base 65. Thus, when the yarn Y is caught by the second hook 68b and stress acts on the second hook 68b, the second hook 68b swings integrally with the rotary guide 162. The stress exerted by yarn Y on second hook 68b is directly proportional to the tension applied to yarn Y.

The rotation guide 162 is provided so that when the stress acting on the second hook 68b becomes greater than a predetermined value, the amount of swing (movable amount) from the initial state becomes large in accordance with the stress, and is biased so as to return to the initial state when the stress acting on the second hook 68b is equal to or less than the predetermined value. In the present embodiment, the rotation guide 162 is connected to a fixed portion 161b, which is a part of the base 65, via an elastic member (e.g., a spring member) 163. Accordingly, when the stress applied to the second hook 68b becomes larger than the predetermined value, the second hook 68b increases the amount of swing (the movable amount) from the initial state in response to the stress, and returns to the initial state when the stress applied to the second hook 68b becomes equal to or smaller than the predetermined value.

One axial end of the rotation guide 162 is connected to a potentiometer 164. The potentiometer 164 obtains the rotation amount of the rotation guide 162 with respect to the base plate 65 a. The rotation amount obtained by the potentiometer 164 is obtained by a control unit 90 described later. The rotation guide 162 is provided with a rotation solenoid 165 that forcibly rotates the rotation guide 162. The rotary solenoid 165 forcibly rotates the second hook 68b in the arrow direction shown in fig. 19, thereby releasing the yarn Y in the locked state in the second hook 68 b. The rotary solenoid 165 is controlled by the control section 90.

Next, a control unit 90 (see fig. 7 and 17), which is one of the features of the present invention, will be described in more detail. The control unit 90 is an electronic control unit including a CPU (Central Processing Unit ), a ROM (Read Only Memory), a RAM (Random Access Memory ), an I/O port, a communication port, and the like. A program for controlling each section is recorded in the ROM. The functions of the drive control unit 90a and the determination unit 90b, which will be described in detail later, are executed under the control of the CPU by reading predetermined computer software into hardware such as the CPU and the main memory unit.

The drive control unit 90a controls the first motor 62b of the first rotating mechanism 62 and the second motor 63b of the second rotating mechanism 63 so that the amount of swing obtained by the potentiometer 164 falls within a first predetermined range, and controls the amount of yarn Y paid out from each of the yarn supply packages P1, P1. The first hook 67a, the second hook 67b, the third hook 67c, the first hook 68a, the second hook 68b, and the third hook 68c are provided so as to be movable over a first predetermined range. The determination unit 90b determines whether or not the joint is successful in the joint device 60 based on the rotation amounts (the amounts of the first hooks 67a and 68 a) obtained by the potentiometer 164 when the catch guide 61 is moved to the inspection position P61.

Next, one of the features of an embodiment of the present invention will be described, namely, control when the yarn end Y1 and the yarn end Y2 are guided to the splicing mechanism 64 by the catch guiding mechanism 61 in order to splice the yarn end Y1 on the outer layer side of the yarn feed package P1 supported by the first bobbin 24a and the yarn end Y2 on the inner layer side of the yarn feed package P1 supported by the second bobbin 24b by the splicing device 60.

When the yarn splicing operation is started, the yarn splicing device 60 moves the splice arm portion 61b of the catch guide mechanism 61 to position the suction nozzle 61d on the splicer 10 of the yarn feeding package P1 supported by the second bobbin 24b, and captures the yarn end Y2 by the suction nozzle 61d, as shown in fig. 18 and 19A. Next, in the yarn joining device 60, the yarn Y of the yarn feed package P1 supported by the second bobbin 24b is locked to the first hook 68a and the second hook 68b by moving the joint arm 61b in this state, and then the suction nozzle 61d is moved in the direction of the splicer 10 of the yarn feed package P1 supported by the first bobbin 24 a. Thereby, the yarn Y is pulled out from the yarn supply package P1 supported by the second bobbin 24 b.

Here, the control of the catch guide mechanism 61 when the yarn Y is pulled out from the yarn feed package P1 supported by the second bobbin 24b will be described. When the yarn end Y2 caught by the suction nozzle 61d is moved in the direction of the first bobbin 24a while the yarn Y is caught by the first hook 68a and the second hook 68B, tension is generated in the yarn Y and transmitted to the first hook 68a and the second hook 68B as stress as shown in fig. 19B. As a result, the first hook 68a and the second hook 68B swing in the arrow direction shown in fig. 19B in accordance with the tension generated by the yarn Y.

The control unit 90 controls the second rotating mechanism 63 based on the rotation amount of the rotation guide 162 obtained by the potentiometer 164, and rotates the yarn feed package P1 supported by the second bobbin 24b in the payout direction. Specifically, the control unit 90 controls the second rotating mechanism 63 so that the amount of swing of the first hook 68a and the second hook 68b falls within a first predetermined range, and controls the amount of yarn Y discharged from the yarn feed package P1. Here, the second rotating mechanism 63 may be controlled so that the amount of swing of at least one of the first hook 68a and the second hook 68b is within a first predetermined range, and the amount of yarn Y discharged from the yarn feed package P1 may be controlled.

In the present embodiment, the amounts of swinging of the first hook 68a and the second hook 68b are obtained by the potentiometer 164 as the amount of rotation of the rotation guide 162. Thus, the control unit 90 controls the second rotation mechanism 63 so that the rotation amount obtained by the potentiometer 164 becomes a second predetermined range corresponding to the first predetermined range, and controls the payout amount of the yarn Y from the yarn feed package P1.

For example, when the rotation amount obtained by the potentiometer 164 exceeds the second predetermined range, the second motor 63b is controlled to rotate the yarn package P1 supported by the second bobbin 24b in the payout direction. Accordingly, the yarn Y is released from the yarn supply package P1, and the tension generated in the yarn Y is relaxed. The first predetermined range is the amount of swing of the first hook 68a and the second hook 68b calculated from the tension range in which the yarn Y is not damaged.

Next, the catch guide mechanism 61 moves the joint arm 61b to move the suction nozzle 61d that catches the yarn end Y2 to the yarn supply package P1 supported by the first bobbin 24a, and the suction nozzle 61d catches the yarn end Y1. Next, as shown in fig. 20, the yarn joining device 60 moves the joining arm 61b in a state where the yarn end Y1 and the yarn end Y2 are caught, and then, after the yarn Y of the yarn feeding package P1 supported by the first bobbin 24a is locked by the first hook 67a and the second hook 67b, moves the suction nozzle 61d in the direction of the joining mechanism 64. Thus, the yarn Y is pulled out from the yarn feed package P1 supported by the first bobbin 24a at this time. The yarn Y is continuously drawn from the yarn supply package P1 supported by the second bobbin 24 b.

The yarn end Y2 is captured while the yarn end Y1 is retained after the yarn Y is locked to the first hook 68a and the second hook 68b, but the yarn end Y1 may be released after the yarn Y locked to the first hook 68a and the second hook 68b is maintained in tension by an appropriate method, and only the yarn end Y2 may be captured by the suction nozzle 61d to lock the yarn Y to the first hook 67a and the second hook 67b. That is, the yarn Y of the yarn feed package P1 supported by the second bobbin 24b and the yarn Y of the yarn feed package P1 supported by the first bobbin 24a may be pulled out, respectively, and the yarn Y of the yarn feed package P1 supported by the second bobbin 24b may be locked to the first hook 68a and the second hook 68b, and then the yarn Y of the yarn feed package P1 supported by the first bobbin 24a may be locked to the first hook 67a and the second hook 67b.

Here, the control of the catch guide mechanism 61 when the yarn Y is pulled out from the yarn feed package P1 supported by the first bobbin 24a will be described. When the yarn end Y1 caught by the suction nozzle 61d is moved in the direction of the yarn joining mechanism 64 while the yarn Y is locked to the first hook 67a and the second hook 67b, tension is generated in the yarn Y and transmitted to the first hook 67a and the second hook 67b as stress. Thereby, the first hook 67a and the second hook 67b swing in accordance with the tension generated in the yarn Y.

The control unit 90 controls the first rotation mechanism 62 based on the rotation amount of the rotation guide 162 obtained by the potentiometer 164, and rotates the yarn feed package P1 supported by the first bobbin 24a in the payout direction. Specifically, the control unit 90 controls the first rotating mechanism 62 so that the amount of swing of the first hook 67a and the second hook 67b falls within a first predetermined range, and controls the amount of yarn Y discharged from the yarn feed package P1. Here, the first rotation mechanism 62 may be controlled so that the amount of swing of at least one of the first hook 67a and the second hook 67b is within a first predetermined range, and the amount of yarn Y discharged from the yarn feed package P1 may be controlled.

In the present embodiment, as described above, the amounts of swinging of the first hook 67a and the second hook 67b are obtained by the potentiometer 164 as the amount of rotation of the rotation guide 162. Thus, the control unit 90 controls the first rotation mechanism 62 so that the rotation amount obtained by the potentiometer 164 becomes a second predetermined range corresponding to the first predetermined range, and controls the payout amount of the yarn Y from the yarn feed package P1.

For example, when the rotation amount obtained by the potentiometer 164 exceeds the second predetermined range, the first motor 62b is controlled to rotate the yarn package P1 supported by the first bobbin 24a in the payout direction. Accordingly, the yarn Y is released from the yarn supply package P1, and the tension generated in the yarn Y is relaxed. The control of the first rotation mechanism 62 described above is continued while the control unit 90 is controlling the first rotation mechanism 62.

As described above, in the yarn splicing device 60, when the yarn Y is pulled out from the yarn feed package P1 supported by the second bobbin 24b by the catch guide mechanism 61, the second bobbin 24b is controlled by the second rotating mechanism 63 to rotate the yarn feed package P1 in the paying-out direction. This can maintain the tension of the yarn Y in the yarn feeding package P1 within a predetermined range. Similarly, in the yarn splicing device 60, when the yarn Y is pulled out from the yarn feed package P1 supported by the first bobbin 24a by the catch guide mechanism 61, the first bobbin 24a is controlled by the first rotating mechanism 62 to rotate the yarn feed package P1 in the paying-out direction. This can maintain the tension of the yarn Y in the yarn feeding package P1 within a predetermined range.

Next, a method of determining whether or not the yarn end Y1 and the yarn end Y2 are properly joined (i.e., intertwined) after the yarn end Y1 on the outer layer side of the yarn feed package P1 supported by the first bobbin 24a and the yarn end Y2 on the inner layer side of the yarn feed package P1 supported by the second bobbin 24b are joined by the joining device 60, which is one of the features of the present invention, will be described.

The yarn that has been entangled (spliced) by the yarn splicing device 60 (hereinafter, a state in which the yarn end Y2 of the yarn Y of the yarn feed package P1 supported by the second bobbin 24b by the yarn splicing device 60 is connected to the yarn end Y1 of the yarn Y of the yarn feed package P1 supported by the first bobbin 24a is referred to as "continuous yarn (continuous synthetic fiber yarn) Y0"), is locked to the first hooks 67a and 68a and the second hooks 67b and 68b. The yarn joining device 60 operates the rotary solenoid 165 provided to the second hooks 67b and 68b to release the continuous yarn Y0 from engagement with the second hooks 67b and 68b. Thus, the continuous yarn Y0 is locked to only the first hooks 67a and 68 a.

Next, as shown in fig. 21, the yarn splicing device 60 moves the splice arm portion 61b of the catch guide mechanism 61 so that the hook portion 61e is located between the first hook 67a and the first hook 68a, and the continuous yarn Y0 is locked by the hook portion 61 e. More specifically, for example, the catch guide mechanism 61 catches the continuous yarn Y0 such that the intersecting portion YC of the yarn end Y1 and the yarn end Y2 is located between the catch portion of the continuous yarn Y0 and the engagement portion by the first hook 67a (may be the first hook 68 a).

Next, the yarn splicing device 60 moves the hook 61e upward in a state where the continuous yarn Y0 is caught by the hook 61e, and moves the yarn splicing device to the predetermined inspection position P61. By the operation of the catch guide mechanism 61, a predetermined tension is generated in the continuous yarn Y0. The control unit 90 obtains the amount of swing generated by the first hook 67a and the first hook 68a at this time, that is, the amount of rotation of the rotation guides 162, 162 obtained by the potentiometers 164, 164. The control unit 90 may acquire the amount of swing generated by at least one of the first hooks 67a and 68 a.

The control unit 90 determines whether or not the yarn end Y1 and the yarn end Y2 are successfully joined based on the rotation amounts obtained by the potentiometers 164, 164 provided to the first hook 67a and the first hook 68a when the hook 61e is moved to the inspection position P61. In other words, the control section 90 determines the merits of the complex section YC. For example, when the hook 61e is moved to the inspection position P61 and the rotation amounts obtained by the potentiometers 164, 164 provided to the first hook 67a and the first hook 68a are equal to or greater than a predetermined value, that is, when the continuous yarn Y0 generates a predetermined tension, the control unit 90 determines that the yarn end Y1 and the yarn end Y2 are successfully joined.

On the other hand, when the rotation amount obtained by the potentiometers 164, 164 provided on the first hook 67a and the second hook 68b is smaller than the predetermined value (including the case where the tension is 0) when the hook portion 61e is moved to the inspection position P61, that is, when the continuous yarn Y0 does not generate the predetermined tension, the control portion 90 can determine that the yarn end Y1 and the yarn end Y2 are failed in a state where the winding portion YC is not perfect (a state where the yarn end Y1 is released when pulled), or in a state where the yarn end Y2 is not satisfactorily connected.

The control unit 90 may transmit the determination result to, for example, a unified control device (not shown) that uniformly controls the false twist processing system 1 including 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, or to a terminal device carried by an operator or the like. Further, the unified control device that receives the determination result may cause a display device or the like provided in the unified control device to display the determination result. The unified control device may also transmit the determination result to the mobile terminal.

In the package replacement apparatus 7 described in the above embodiment, since the yarn feed package P1 can be rotated in the paying-out direction, tension generated in the yarn Y when the yarn Y is pulled out from the yarn feed package P1 by the catch guide mechanism 61 can be relaxed. In the package replacement apparatus 7, the tension generated when the yarn ends Y1 and Y2 of the yarn-feeding package P1 are guided to the splicing device 60 is acquired by the first hooks 67a and 68a and the second hooks 67b and 68b, and the amount of the yarn-feeding package P1 discharged is controlled based on the acquired tension. As a result, the yarn end Y1 and the yarn end Y2 of the yarn feed package P1 can be pulled out and guided to the yarn splicing device 60 while maintaining the tension acting on the yarn Y in the fixed range.

The package replacement apparatus 7 according to the above embodiment includes: a yarn joining device 60 for joining the yarn end Y1 and the yarn end Y2 of the yarn feed package P1 to each other; a catch guide mechanism 61 for guiding the yarn end Y1 and the yarn end Y2 of the yarn feed package P1 to the yarn splicing device 60; a supply device 50 for supplying the yarn package P1 to the creel 20; and a recovery device 40 for recovering the yarn supplying bobbin B1 from the creel 20. Therefore, the replacement work and the splicing work of the yarn feeding package P1 can be performed by the package replacement device 7 without the need for a human hand.

In the package replacement apparatus 7 according to the above embodiment, the first hooks 67a and 68a and the second hooks 67b and 68b are provided so as to be swingable with respect to the base plate 65a, and are provided so that when the tension applied to the yarn Y becomes greater than a predetermined value, the amount of swing from the initial state becomes large in accordance with the tension. Therefore, the locking portion structure provided so that the movable amount from the initial state increases according to the tension can be easily and compactly constituted.

In the package replacement apparatus 7 according to the above embodiment, the first hooks 67a and 68a and the second hooks 67b and 68b are provided so as to be movable within a range larger than the first predetermined range. Therefore, even if a tension greater than the first predetermined range acts on the first hooks 67a, 68a and the second hooks 67b, 68b, the swing corresponding to the tension can be performed. Accordingly, even if a tension greater than the first predetermined range is applied to the first hooks 67a and 68a and the second hooks 67b and 68b unintentionally, the tension can be relaxed, and damage or cutting of the yarn Y can be reduced.

The package replacement apparatus 7 according to the above embodiment includes: a first hook 68a and a second hook 68b for locking the yarn end Y2 pulled out from the yarn feed package P1 supported by the second bobbin 24 b; and a first hook 67a and a second hook 67b for locking the yarn end Y1 pulled out from the yarn feed package P1 supported by the first bobbin 24 a. Thereby, the tension of both the yarn Y drawn from the yarn feed package P1 supported by the second bobbin 24b and the yarn Y drawn from the yarn feed package P1 supported by the first bobbin 24a can be appropriately adjusted.

While the embodiment of the present invention has been described above, the embodiment of the present invention is not necessarily limited to the above embodiment, and various modifications may be made without departing from the gist thereof.

In the package replacement apparatus 7 according to the above embodiment, the first hook 68a and the second hook 68b for locking the yarn end Y2 pulled out from the yarn feed package P1 supported by the second bobbin 24b, and the first hook 67a and the second hook 67b for locking the yarn end Y1 pulled out from the yarn feed package P1 supported by the first bobbin 24a are described as examples, but one embodiment of the present invention is not limited to this. The positions at which the hooks (locking portions) are disposed are not limited to the positions as long as they are on the path when the catch guide mechanism 61 guides the joint device 60. The number of hooks is not limited to the number described in the above embodiment, and may be appropriately arranged.

In the package replacement apparatus 7 according to the above embodiment, the case where the catch guide mechanism 61 catches both the yarn end Y2 pulled out from the yarn feed package P1 supported by the second bobbin 24b and the yarn end Y1 pulled out from the yarn feed package P1 supported by the first bobbin 24a and guides the yarn end Y1 to the yarn splicing device 60 has been described. For example, the package replacement device 7 may be configured to be provided with a catching guide mechanism for catching the yarn end Y2 pulled out from the yarn feed package P1 supported by the second bobbin 24b and a catching guide mechanism for catching the yarn end Y1 pulled out from the yarn feed package P1 supported by the first bobbin 24a, respectively.

In the package replacement apparatus 7 according to the above embodiment, the explanation has been given of an example in which the continuous yarn Y0 is caught by the hook 61e when the continuous yarn Y0 is guided to the inspection position P61, but the continuous yarn Y0 may be caught by the suction nozzle 61d, for example.

In the above embodiment, the traveling carriage 30 having wheels has been described as an example of the traveling means, but the traveling means may be configured to have a linear motion mechanism instead of the wheels.

Claims (9)

1. A joint system for synthetic fiber yarns is used for a textile machine, and the textile machine comprises: a creel for supporting a yarn supply package formed by winding synthetic fiber yarn composed of synthetic fiber around a bobbin in a yarn supply package supporting part; a processing device for processing the synthetic fiber yarn supplied from the yarn supply package; and a winding device for winding the synthetic fiber yarn after the processing is applied to form a winding package, wherein the synthetic fiber yarn splicing system pulls out yarn ends from the 2 yarn supply packages of 1 group supported by the yarn supply package supporting part, respectively, and splices the yarn ends, and the synthetic fiber yarn splicing system comprises:

A joint section for winding a first yarn end, which is a yarn end of one of the yarn feeding packages, and a second yarn end, which is a yarn end of the other yarn feeding package;

a guide portion for guiding the first yarn end and the second yarn end to the joint portion;

a locking portion to which the synthetic fiber yarn is locked when the guide portion guides the first yarn end and the second yarn end to the joint portion, the locking portion being provided so that, when a tension applied to the synthetic fiber yarn becomes greater than a predetermined value, a degree of operation of the locking portion from a pre-locking state increases in accordance with the tension, and so that, when the tension applied to the synthetic fiber yarn is equal to or less than the predetermined value, the locking portion is biased so as to return to the pre-locking state;

an operating mechanism for driving the yarn feed package supporting section for supporting the yarn feed package in the creel so as to be rotatable in a paying-out direction;

a travel unit that moves a base that supports the joint portion, the guide portion, the locking portion, and the operating mechanism along the creel;

an acquisition unit configured to acquire a movable amount of the locking unit with respect to the base; and

And a drive control unit configured to control the operating mechanism so that the movable amount becomes a first predetermined range, and to control the discharge amount of the synthetic fiber yarn discharged from the yarn supply package.

2. The synthetic fiber yarn splicing system according to claim 1, further comprising:

a recovery device for recovering the bobbin supported by the yarn supply package support part; and

a supply device for mounting the yarn supply package to the yarn supply package support part,

the recovery device and the supply device are supported by the base.

3. The joint system for a synthetic fiber yarn according to claim 1 or 2, wherein,

the locking portion is provided swingably with respect to the base, and is provided so that when the tension applied to the synthetic fiber yarn becomes greater than a predetermined value, the amount of swing from the pre-locking state becomes large in accordance with the tension,

the acquisition unit acquires the amount of swing of the locking unit with respect to the base.

4. The joint system for a synthetic fiber yarn according to claim 1 or 2, wherein,

the locking portion is provided to be movable within a range larger than the first predetermined range.

5. The synthetic fiber yarn splicing system according to claim 3, wherein,

the locking portion is provided to be movable within a range larger than the first predetermined range.

6. The joint system for a synthetic fiber yarn according to claim 1 or 2, wherein,

the locking portion includes: a first locking portion for locking the synthetic fiber yarn wound around one of the yarn supply packages; and a second locking portion for locking the synthetic fiber yarn wound on the other yarn feeding package.

7. The synthetic fiber yarn splicing system according to claim 3, wherein,

the locking portion includes: a first locking portion for locking the synthetic fiber yarn wound around one of the yarn supply packages; and a second locking portion for locking the synthetic fiber yarn wound on the other yarn feeding package.

8. The synthetic fiber yarn splicing system of claim 4 wherein,

the locking portion includes: a first locking portion for locking the synthetic fiber yarn wound around one of the yarn supply packages; and a second locking portion for locking the synthetic fiber yarn wound on the other yarn feeding package.

9. The synthetic fiber yarn splicing system of claim 5 wherein,

the locking portion includes: a first locking portion for locking the synthetic fiber yarn wound around one of the yarn supply packages; and a second locking portion for locking the synthetic fiber yarn wound on the other yarn feeding package.

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