JP2021024742A - Yarn splicing system for synthetic yarn - Google Patents

Abstract

To provide a yarn splicing system for a synthetic yarn capable of pulling out a yarn end of a yarn feeding package and guiding it to a yarn splicing device in a state that tension acting on the synthetic yarn is maintained in a fixed range.SOLUTION: A package changing device 7 includes: a splicer 66 for interlacing a yarn end Y1 and a yarn end Y2; first hooks 67a and 68a and second hooks 67b, 68b provided so that a movable amount from an initial state becomes larger according to tension acting on a yarn Y when the tension becomes larger than a predetermined value, and energized so as to return to the initial state when the tension acting on the yarn Y is equal to or lower than a predetermined value; a first motor 62b and a second motor 63b for driving a peg 24 for rotatably supporting a yarn feed package P1; and a driving control part 90a for controlling the feeding amount of the yarn Y fed from the yarn feeding package P1 by controlling the first motor 62b and the second motor 63b so that the movable amount is within a first predetermined range.SELECTED DRAWING: Figure 17

Description

The present invention relates to a yarn splicing system for synthetic yarns.

A false twisting machine is known in which a plurality of synthetic yarns supplied from a yarn feeding package are false-twisted, and the processed synthetic yarn is wound by a take-up device to form a take-up package (for example, a patent). Document 1). In the false twisting machine, in a creel stand that holds a plurality of yarn feeding packages, two pegs that hold the yarn feeding packages are used in a set in order to continuously supply synthetic yarn. In this configuration, the synthetic fiber on the inner layer side of the yarn feeding package supported by one peg and the synthetic fiber yarn on the outer layer side of the yarn feeding package supported by the other peg are connected. As a result, in the creel stand, even if the synthetic fiber yarn of one yarn feeding package is exhausted, the synthetic yarn is supplied from the other yarn feeding package, so that the synthetic yarn can be continuously supplied.

In such a configuration, when the synthetic yarn of the yarn feeding package is exhausted, a new package is supplied, and the synthetic yarn of the yarn feeding package supported by one peg and the synthetic yarn supported by the other peg are supplied. It is necessary to perform thread splicing with the synthetic fiber thread of the package. Such thread splicing work (tail splicing work) is generally performed manually. Patent Document 2 discloses a work trolley that is provided so as to be able to travel along such a creel stand and for a worker who replaces a yarn feeding package and carries out yarn splicing.

Japanese Unexamined Patent Publication No. 6-200434 Special Fair 7-68010 Gazette

There is a demand for the device to perform the thread splicing work as described above without human intervention. In this case, it is necessary to pull out the synthetic fiber yarn from each of the pair of yarn feeding packages and guide the yarn to the yarn joint portion of the yarn joint device for entwining the synthetic fiber yarn. At this time, if the tension acting on the synthetic yarn exceeds a predetermined range, the yarn is damaged and the quality of the entangled portion deteriorates. As a result, if the passing rate of the entangled portion in the downstream process is lowered, the production efficiency of the take-up package in the false twisting machine is lowered.

Therefore, an object of one aspect of the present invention is a yarn for synthetic yarn, which can pull out the yarn end of the yarn feeding package and guide the yarn to the yarn splicing device while maintaining the tension acting on the synthetic yarn within a certain range. It is to provide a succession system.

The yarn splicing system for synthetic yarn according to one aspect of the present invention consists of a reel stand in which a yarn feeding package in which synthetic yarn made of synthetic fibers is wound around a bobbin is supported by a yarn feeding package support portion, and a yarn feeding package. It is used in a textile machine equipped with a processing device for processing the supplied synthetic fiber yarn and a winding device for winding the processed synthetic fiber yarn to form a winding package, and is supported by a yarn feeding package support portion. This is a yarn splicing system for synthetic yarns in which yarn ends are pulled out from each of the two sets of yarn feed packages and the yarn ends are spliced together, and the first yarn end which is the yarn end of one yarn feed package. A thread joint portion that entangles the second thread end, which is the thread end of the other thread feeding package, a guide portion that guides the first thread end and the second thread end to the thread joint portion, and the guide portion is the first thread. It is a locking part where the synthetic yarn is locked when guiding the end and the second yarn end to the yarn joint, and when the tension acting on the synthetic yarn becomes larger than a predetermined value, it is released from the initial state according to the tension. A locking portion that is provided so that the amount of movement is large and is urged to return to the initial state when the tension acting on the synthetic yarn is less than a predetermined value, and a yarn feeding package is fed out at the reel stand. An operating mechanism that drives the yarn feeding package support that rotatably supports in the direction, and a traveling unit that moves the yarn joint, the guide, the locking portion, and the base that supports the operating mechanism along the reel stand. Drive control that controls the acquisition unit that acquires the movable amount of the locking portion with respect to the base and the operation mechanism so that the movable amount is within the first predetermined range to control the feeding amount of the synthetic yarn that is fed from the yarn feeding package. It has a part and.

The feeding direction of the synthetic fiber yarn referred to here is a concept including not only the direction in which the synthetic fiber yarn is fed out 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 yarn splicing system having this configuration, since the yarn feeding package can be rotated in the feeding direction, the tension generated in the yarn when the yarn is pulled out from the yarn feeding package by the guide portion can be relaxed. Further, in the yarn splicing system for synthetic fibers having this configuration, the tension generated when guiding the yarn end of the yarn feeding package to the yarn splicing device is acquired by the locking portion, and the yarn feeding package is subjected to the acquired tension. The amount of feeding is controlled. As a result, the yarn end of the yarn feeding package can be pulled out and guided to the yarn splicing device while the tension acting on the synthetic fiber yarn is maintained within a certain range.

The yarn splicing system for synthetic fibers according to one aspect of the present invention further includes a collecting device for collecting bobbins supported by the yarn feeding package support portion and a feeding device for attaching the yarn feeding package to the yarn feeding package support portion. A recovery device and a supply device may be supported on the base. With this configuration, it is possible to allow the synthetic yarn splicing system to perform the replacement work and the yarn splicing work of the yarn feeding package held by the creel stand without human intervention.

In the yarn splicing system for synthetic fiber yarn according to one aspect of the present invention, the locking portion is provided so as to be swingable with respect to the base, and when the tension acting on the synthetic fiber yarn becomes larger than a predetermined value, it is initially set according to the tension. It is provided so that the amount of swing from the state is large, and the acquisition unit may acquire the amount of swing of the locking portion with respect to the base. With this configuration, it is possible to easily and compactly configure the locking portion that moves so that the amount of swing from the initial state increases according to the tension.

In the yarn splicing system for synthetic fibers according to one aspect of the present invention, the locking portion may be movably provided in a range wider than the first predetermined range. In this configuration, even if a tension larger than the first predetermined range acts on the locking portion, it is possible to swing according to the tension. As a result, even if a tension larger than the first predetermined range is unintentionally applied to the locking portion, the tension is relaxed, and the synthetic fiber yarn is less likely to be damaged or cut.

In the synthetic yarn splicing system according to one aspect of the present invention, the locking portion is wound around a first locking portion that locks the synthetic fiber wound wound in one yarn feeding package and the other yarn feeding package. It may have a second locking portion for locking the turned synthetic yarn. In this configuration, the tensions of both the synthetic fiber drawn from one yarn feeding package and the synthetic fiber drawn from the other yarn feeding package can be adjusted appropriately.

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 the tension acting on the synthetic fiber yarn is maintained within a certain range.

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 transport 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 portion of the second transport device. FIG. 5 is a perspective view showing a creel stand. FIG. 6 is a perspective view showing a peg. FIG. 7 is a perspective view showing the package changing device. 8 (a) and 8 (b) are perspective views showing the holding unit. FIG. 9 is a diagram showing a configuration of a 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 a thread joining device. FIG. 13 is a perspective view showing a thread joining device. FIG. 14 is a perspective view showing a thread joining device. FIG. 15 is a perspective view showing a thread splicing device and a catching guide mechanism. FIG. 16 is a perspective view showing the configuration of one hook of the second guide mechanism. FIG. 17 is a functional block diagram showing a functional configuration of the thread joining device. FIG. 18 is a perspective view showing a thread splicing device and a catching guide mechanism. 19 (a) and 19 (b) are perspective views showing a second guide mechanism locked to the thread. FIG. 20 is a perspective view showing a thread splicing device and a catching guide mechanism. FIG. 21 is a perspective view showing a thread splicing device and a catching guide mechanism.

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 equivalent elements are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIG. 1, the false twist processing system 1 includes a false twist processing machine (fiber machine) 2, a first transfer device 3, a second transfer device 4, a yarn feeding unit 5, and a package replenishment device 6. And a package changing device (thread splicing system for synthetic fiber yarn) 7. The false twisting system 1 includes a control device (not shown) that comprehensively controls the false twisting machine 2, the first transfer device 3, the second transfer device 4, the package replenishment device 6, and the package exchange device 7. .. In the false twist processing system 1 according to the present embodiment, a plurality of false twist processing machines 2, a first transfer device 3, a second transfer device 4, a yarn feeding unit 5, a package replenishment device 6, and a package exchange device 7 are provided. ing. In the following description, the "Z direction" shown in the figure is the vertical direction (vertical 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 twisting system 1 processes the yarn Y (see FIG. 3) supplied from the plurality of yarn feeding packages P1 (see FIG. 2) to manufacture the take-up package P2 (see FIG. 4). Thread Y is a synthetic fiber made of a thermoplastic synthetic fiber such as polyester or polyamide. The yarn feeding package P1 is formed by winding a semi-drawn yarn (POY: Partially Oriented Yarn) around a yarn feeding bobbin B1 (see FIG. 2). The take-up package P2 is formed by winding a drawn yarn (DTY: Draw Textured Yarn) on a take-up bobbin B2 (see FIG. 4).

The false twisting machine 2 processes the yarn Y to form the take-up package P2. The false twisting machine 2 has a main machine base (processing device) 2a and two winding bases 2b. The main engine base 2a is provided with a twisting device, a feed roller, and the like. The take-up stand 2b is provided with a take-up device, a ball lifting device, and the like. The main engine base 2a extends along the X direction. The take-up table 2b extends along the X direction. The take-up stand 2b is arranged at a position facing the main engine stand 2a in the Y direction (width direction of the main engine stand 2a). That is, the two take-up stands 2b are arranged at positions sandwiching the main engine stand 2a.

The false twisting machine 2 performs false twisting on the yarn Y supplied from the plurality of yarn feeding packages P1 and winds the processed yarn on the winding bobbin B2 to form the winding package P2 (see FIG. 4). .. The false twisting machine 2 supplies the formed take-up package P2 to the second transfer device 4.

The first transfer device 3 conveys the yarn feeding package P1. The first transport device 3 travels along, for example, the first rail R1 suspended from the ceiling. The first rail R1 is arranged, for example, between one false twisting machine 2 and another false twisting machine 2, and between the take-up stand 2b and the yarn feeding unit 5. The first transport device 3 transports the yarn feed package P1 between the supply location where the yarn feed package P1 is supplied and the predetermined package replenishment device 6. As shown in FIG. 2, the first transport device 3 has a first package holding portion 3a. The first package holding portion 3a is suspended from the first rail R1. The first package holding unit 3a holds a plurality of (for example, 12) yarn feeding packages P1. The first package holding portion 3a supports the thread feeding package P1 by a support member (not shown) inserted in the thread feeding bobbin B1 of the thread feeding package P1.

As shown in FIG. 3, the adapter 10 is attached to the yarn feeding package P1. The adapter 10 holds the thread 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 rotatably mounted on the thread feeding bobbin B1 of the thread feeding package P1. The mounting portion 11 has a cylindrical shape. The mounting portion 11 is mounted on the end of the thread feeding bobbin B1 protruding from the side surface of the thread feeding package P1.

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

The second holding portion 13 holds the second yarn end Y2 of the yarn Y on the inner layer side (tail side) of the yarn feeding package P1. The second holding portion 13 is provided on the mounting portion 11. The second holding portion 13 has a second arm 13a, a second gripping tool 13b, and a second thread guide 13c. The base end side of the second arm 13a is fixed to the side surface of the mounting portion 11, and extends along the radial direction of the mounting portion 11. The second arm 13a is arranged so as to be positioned in the same linear shape as the first arm 12a. The second gripping tool 13b grips the second thread end Y2. The second gripping tool 13b is provided on the tip end side of the second arm 13a. The second thread guide 13c is provided on the second arm 13a.

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

As shown in FIG. 4, the second transfer device 4 conveys the take-up package P2. The second transfer device 4 travels along the first rail R1. The second transport device 4 transports the take-up package P2 between the predetermined false twisting machine 2 and the storage facility (not shown) of the take-up package P2. The second transfer device 4 has a second package holding portion 4a. The second package holding portion 4a is suspended from the first rail R1. A plurality (for example, 16) winding packages P2 are each held via the second package holding portion 4a. Specifically, the take-up package P2 is held by supporting both ends of each take-up bobbin B2 by package receivers.

As shown in FIG. 1, the yarn feeding unit 5 supplies the yarn Y to the false twisting machine 2. The yarn feeding unit 5 is arranged adjacent to the false twisting machine 2. The yarn feeding unit 5 is arranged at a position facing the take-up table 2b of the false twisting machine 2 in the Y direction. The yarn feeding unit 5 extends along the X direction. The yarn feeding unit 5 has a plurality of creel stands 20. The creel stand 20 holds the yarn feeding package P1. A plurality of creel stands 20 are arranged along the X direction. In the yarn feeding unit 5 according to the present embodiment, a pair of creel stands 20 are arranged back to back in the Y direction.

As shown in FIG. 5, the creel stand 20 has a creel base portion 21, four first columns 22a, 22b, 22c, 22d, a partition plate 23, and a plurality of pegs 24. There is. The creel base portion 21 is a frame-shaped frame body. The four first columns 22a to 22d are erected on the creel base portion 21. The four first columns 22a to 22d extend along the Z direction. Each of the four first columns 22a to 22d is arranged at a predetermined interval in the X direction and at a predetermined interval in the Y direction. The partition plate 23 is provided on the first columns 22a to 22d. The partition plates 23 are arranged at predetermined intervals in the Z direction of the first columns 22a to 22d. The partition plate 23 prevents the yarn feeding package P1 from falling.

The peg 24 supports the yarn feeding package P1. The pegs 24 are provided on the first columns 22a and 22b. A plurality (for example, eight) of pegs 24 are arranged at predetermined intervals in the Z direction of the first columns 22a and 22b. The pegs 24 are arranged between the pair of partition plates 23. The pegs 24 provided on the first support column 22a and the pegs 24 provided on the first support column 22b are arranged side by side at the same height position. In the following description, the peg 24 provided on the first support column 22a is also referred to as a "first peg 24a", and the peg 24 provided on the first support column 22b is also referred to as a "second peg 24b".

The first peg 24a and the second peg 24b are used in pairs. In this configuration, the thread Y of the thread feeding package P1 supported by the first peg 24a and the thread Y of the thread feeding package P1 supported by the second peg 24b are connected. Specifically, it is supported by the first yarn end Y1 on the outer layer side or the second yarn end Y2 on the inner layer side and the second peg 24b of the yarn Y of the yarn feeding package P1 supported by the first peg 24a. 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 feeding package P1 is connected. As a result, one thread Y is supplied from the thread feeding package P1 supported by the first peg 24a and the second peg 24b in pairs.

As shown in FIG. 6, the peg 24 has a yarn feeding package support portion 25 and a peg main body portion 26. The thread feeding package support portion 25 supports the thread feeding package P1. The yarn feeding 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 peg body 26. The package support members 25a and 25b extend in one direction and are parallel to each other, and are arranged at predetermined intervals. The peg 24 supports the yarn feeding package P1 at two points by the package support members 25a and 25b.

A covering portion 25d is provided at one end of the package supporting member 25a in the extending direction. A covering portion 25e is provided at one end of the package supporting member 25b in the extending direction. The covering portions 25d and 25e are formed of, for example, rubber (resin) having a large friction coefficient. The covering portions 25d and 25e come into contact (contact) with the inner peripheral surface of the yarn feeding bobbin B1 of the take-up 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 25f.

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

The driven pulley 25g is provided at the other end of the package support member 25a. The drive pulley 25h is provided at the other end of the package support member 25b. The power transmission belt 25i is hung on the driven pulley 25g and the driving pulley 25h. The first wheel 25j is provided on the drive pulley 25h (package support member 25b). In the present embodiment, the first wheel 25j is a Geneva wheel constituting the Geneva mechanism. The first wheel 25j is rotated by rotational driving of the first thread splicing driver 62a or the second thread splicing driver 63a of the thread splicing device 60 described later. In the thread feeding package support portion 25, the package support member 25a and the package support member 25b rotate in synchronization with the rotation of the first wheel 25j.

The peg body 26 has a peg body 26a and a rotation transmission member 26b. The peg body 26a is a member exhibiting a rectangular parallelepiped shape. The peg body 26a rotatably supports the package support member 25a and the package support member 25b of the yarn feeding package support portion 25 around its rotation axis. The peg body 26a is provided with a regulating member 26c. The regulating member 26c has, for example, a disk shape. The regulating member 26c is arranged on one side surface of the peg body 26a. The regulation member 26c is attached by inserting the package support member 25a and the package support member 25b. The regulating member 26c faces the end surface of the yarn feeding package P1 and restricts the movement of the yarn feeding package P1 in the extending direction of the package supporting member 25a and the package supporting member 25b. An insertion hole 26d is formed in the peg body 26a. The first column 22a or the first column 22b of the creel stand 20 is inserted into the insertion hole 26d.

The rotation transmission member 26b supports the peg body 26a. A peg body 26a is fixed to the upper end of the rotation transmission member 26b. The rotation transmission member 26b has a cylindrical shape. The hollow portion of the rotation transmission member 26b communicates with the insertion hole 26d of the peg body 26a. The first columns 22a and 22b of the creel stand 20 are coaxially inserted into the rotation transmission member 26b. A second wheel 26e is provided at the lower end of the rotation transmission member 26b. In the present embodiment, the second wheel 26e is a Geneva wheel constituting the Geneva mechanism. The second wheel 26e is rotated by being driven by the first rotation driver 36a or the second rotation driver 37a of the rotation device 35 described later. The peg body 26 rotates with the rotation of the second wheel 26e. As a result, the yarn feeding package support portion 25 rotates. The peg 24 rotates at an exchange position where the yarn feeding bobbin B1 is collected and the yarn feeding package P1 is attached, and a supply position where the yarn Y is supplied.

As shown in FIG. 1, the package replenishing device 6 supplies the yarn feeding package P1 to the package changing device 7. The package replenishing device 6 temporarily stores the yarn feeding package P1 conveyed by the first conveying apparatus 3, and supplies the yarn feeding package P1 to the package changing device 7. The package replenishing device 6 stores a plurality of (for example, four) yarn feeding packages P1. The package replenishment device 6 has a transfer mechanism (not shown) for transferring the yarn feeding package P1 from the first transfer device 3.

The package changing device 7 collects the thread feeding bobbin B1 from the peg 24 and attaches the thread feeding package P1 to the peg 24. As shown in FIG. 7, the package changing device 7 travels along the second rail R2. The second rail R2 is laid on the floor and extends along the X direction (arrangement direction of the creel stands 20). That is, the package changing device 7 travels along the X direction. The package changing device 7 moves between one end of the thread feeding unit 5 in which the package replenishing device 6 is arranged and the other end of the thread feeding unit 5.

The package replacement device 7 includes a traveling carriage (traveling unit) 30, an elevating unit 31, a holding unit (holding device) 32, and a replacement unit 33. Further, the package changing device 7 includes a control unit (not shown) that controls the operation of each unit.

The traveling carriage 30 has a traveling base portion 30a and a support column support portion 30b. The traveling base portion 30a has a rectangular parallelepiped shape. The traveling base portion 30a accommodates a wheel traveling on the second rail R2, a drive mechanism, and the like.

The strut support portion 30b is erected on the traveling base portion 30a. The strut support portion 30b has four second strut 30c, 30d, 30e, 30f and a wall portion 30g. The second columns 30c to 30f and the wall portion 30g extend along the Z direction. The second support column 30c is one end portion in the X direction and is arranged at one end portion in the Y direction in the traveling base portion 30a. The second support column 30c is arranged at a corner of the traveling base portion 30a. The second support column 30d is arranged at one end in the X direction and the other end in the Y direction in the traveling base portion 30a. The second support column 30c and the second support column 30d are arranged at positions facing each other in the Y direction. The second support column 30d is arranged at a corner of the traveling base portion 30a.

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

The elevating unit 31 carries an operator on board and elevates. The elevating unit 31 is used for maintenance and the like. The elevating unit 31 is arranged at the other end of the traveling base portion 30a of the traveling carriage 30 in the X direction. 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 arranged on the wall portion 30g of the support column support portion 30b of the traveling carriage 30. The guide portion 31a extends along the Z direction. The elevating part 31b is a workbench on which an operator is boarded. The elevating part 31b has a box shape. The elevating part 31b is provided so as to be able to move up and down in the Z direction along the guide part 31a. The elevating portion 31b moves along the guide portion 31a by a drive mechanism (not shown).

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

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

The package support portion 32b supports the yarn feeding package P1. The package support portion 32b is rotatably provided. The package support portion 32b rotates in a range of approximately 90 °. The package support portion 32b has a supply position (see FIG. 8B) for receiving the supply of the yarn supply package P1 from the package supply device 6 and a supply position (see FIG. 8A) for supplying the yarn supply package P1 to the replacement unit 33. (See) and. The drive unit 32c rotates the package support unit 32b. The drive unit 32c is, for example, an air cylinder.

The exchange unit 33 exchanges the thread feeding bobbin B1 and the thread feeding package P1 at the peg 24. Specifically, the replacement unit 33 collects the thread feeding bobbin B1 from the peg 24 and attaches the thread feeding package P1 to the peg 24. As shown in FIG. 7, the replacement unit 33 is provided adjacent to the holding unit 32. As shown in FIG. 9, the exchange unit 33 includes a base 34, a rotating device 35, a collecting device 40, a feeding device 50, a thread joining device 60, and a moving device 70.

The base 34 supports a rotating device 35, a collecting device 40, a feeding device 50, and a thread joining device 60. The base 34 is provided so as to be able to move up and down along the support column 30b of the traveling carriage 30. The base 34 is provided at a position accessible to the holding unit 32.

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

The first drive mechanism 36 rotates the first peg 24a of the creel stand 20. The first drive mechanism 36 has a first rotation driver 36a and a first rotation arm portion 36b. The first rotation driver 36a rotates the second wheel 26e of the first peg 24a. The first rotation driver 36a is a Geneva driver that constitutes the Geneva mechanism. The first rotation driver 36a is rotated by a rotation drive of a motor (not shown). The first rotation arm portion 36b supports the first rotation driver 36a. The first rotating arm portion 36b is provided so as to be swingable in the horizontal direction. The first rotating arm portion 36b is driven by, for example, a motor or an air cylinder (not shown).

The second drive mechanism 37 rotates the second peg 24b of the creel stand 20. The second drive mechanism 37 has a second rotation driver 37a and a second rotation arm portion 37b. The second rotation driver 37a rotates the second wheel 26e of the second peg 24b. The second rotation driver 37a is a Geneva driver that constitutes the Geneva mechanism. The second rotation driver 37a is rotated by a rotation drive of a motor (not shown). The second rotation arm portion 37b supports the second rotation driver 37a. The second rotating arm portion 37b is provided so as to be swingable in the horizontal direction. The second rotating arm portion 37b is driven by, for example, a motor or an air cylinder (not shown).

When the thread feeding package P1 is attached to the peg 24, the rotating device 35 rotates the peg 24 to change the direction of the peg 24. The rotating device 35 operates the first drive mechanism 36 or the second drive mechanism 37 corresponding to the target peg 24. For example, when the first drive mechanism 36 is operated, the rotating device 35 swings the first rotating arm portion 36b to engage the first rotating driver 36a with the second wheel 26e of the first peg 24a. Let me. When the first rotation driver 36a and the second wheel 26e are engaged with each other, the rotation device 35 rotates the first rotation driver 36a in one direction. In the peg 24, when the second wheel 26e rotates, the rotation transmission member 26b rotates. As a result, the peg 24 rotates, and the tips of the package support members 25a and 25b face the replacement unit 33 side.

The recovery device 40 collects the yarn feeding bobbin B1 to which the adapter 10 is attached from the peg 24. As shown in FIG. 10, the recovery device 40 includes a first support mechanism 41 and a first recovery drive mechanism 42. The first support mechanism 41 supports the yarn feeding bobbin B1. Further, the first support mechanism 41 recovers the yarn feeding bobbin B1 by advancing and retreating with respect to the peg 24. The first support mechanism 41 has a first slide portion 41a and a first package support member 41b.

The first slide portion 41a has a first linear guide 41c. A part of the first slide portion 41a can be moved in a predetermined direction via the first linear guide 41c. The first package support member 41b supports the yarn feeding bobbin B1. The first package support member 41b is provided at the tip of the moving first slide portion 41a. The first package support member 41b extends along the extending direction of the first slide portion 41a.

The first recovery drive mechanism 42 drives the first support mechanism 41. The first recovery drive mechanism 42 includes a first slide rail 42a, a first recovery drive unit 42b, a first elevating part 42c, and a second recovery drive unit 42d. The first slide rail 42a is connected to the first slide portion 41a. The first slide rail 42a reciprocates a part of the first slide portion 41a by driving the first recovery drive portion 42b. The first recovery drive unit 42b is, for example, an air cylinder. The first elevating portion 42c is connected to the first sliding portion 41a. The first elevating unit 42c raises and lowers the first slide unit 41a by driving the second recovery drive unit 42d. As a result, the first slide portion 41a swings. The second recovery drive unit 42d is, for example, a motor.

The operation of collecting the yarn feeding bobbin B1 by the collecting device 40 will be described. The recovery device 40 advances a part of the first slide portion 41a of the first support mechanism 41 with respect to the peg 24 rotated by the rotation device 35 by the first recovery drive mechanism 42, and the first package support member. 41b is positioned in the hollow portion of the thread feeding bobbin B1. At this time, the recovery device 40 swings the first slide portion 41a of the first support mechanism 41 downward by the first recovery drive mechanism 42, and tilts the first package support member 41b in the horizontal direction. .. When the first package support member 41b is located in the hollow portion of the yarn feeding bobbin B1, the recovery device 40 causes the first recovery drive mechanism 42 to swing the first slide portion 41a upward to move the first package support member 41b. Make it horizontal. As a result, the first package support member 41b and the thread feeding bobbin B1 come into contact with each other to lift the thread feeding bobbin B1, and the thread feeding bobbin B1 and the package supporting members 25a and 25b are separated from each other. The recovery device 40 retracts a part of the first slide portion 41a of the first support mechanism 41 by the first recovery drive mechanism 42. As described above, the recovery device 40 collects the yarn feeding bobbin B1 from the peg 24.

The feeding device 50 supplies the yarn feeding package P1 to the peg 24. As shown in FIG. 11, the supply device 50 includes a second support mechanism 51 and a second supply drive mechanism 52. The second support mechanism 51 supports the yarn feeding package P1. Further, the second support mechanism 51 supplies the yarn feeding package P1 to the peg 24 by advancing and retreating. The second support mechanism 51 has a second slide portion 51a and a second package support member 51b.

The second slide portion 51a has a second linear guide 51c. A part of the second slide portion 51a can be moved in a predetermined direction via the second linear guide 51c. The second package support member 51b supports the yarn feeding package P1. The second package support member 51b is provided at the tip of the moving second slide portion 51a. The second package support member 51b extends along the extending direction of the second slide portion 51a.

The second supply drive mechanism 52 drives the second support mechanism 51. The second supply drive mechanism 52 includes a second slide rail 52a, a first supply drive unit 52b, a second elevating unit 52c, and a second supply drive unit 52d. The second slide rail 52a is connected to the second slide portion 51a. The second slide rail 52a reciprocates a part of the second slide portion 51a by driving the first supply drive portion 52b. The first supply drive unit 52b is, for example, an air cylinder. The second elevating portion 52c is connected to the second sliding portion 51a. The second elevating part 52c raises and lowers the second slide part 51a by driving the second supply driving part 52d. As a result, the second slide portion 51a swings. The second supply drive unit 52d is, for example, a motor.

The acquisition operation in which the feeding device 50 acquires the yarn feeding package P1 from the holding unit 32 will be described. The feeding device 50 acquires the yarn feeding package P1 from the holding unit 32 when the package changing device 7 is moving. When the replacement unit 33 stops at a predetermined height position with respect to the holding unit 32, the supply device 50 has a second supply drive mechanism for the yarn feeding package P1 supported by the package support portion 32b of the holding unit 32. A part of the second slide portion 51a of the second support mechanism 51 is advanced by the 52, and the second package support member 51b is positioned in the hollow portion of the yarn feeding package P1. At this time, the supply device 50 swings the second slide portion 51a of the second support mechanism 51 downward by the second supply drive mechanism 52 to incline the second package support member 51b in the horizontal direction. .. When the second package support member 51b is located in the hollow portion of the yarn feeding package P1, the supply device 50 causes the second slide portion 51a to swing upward by the second supply drive mechanism 52 to move the second package support member 51b. Make it horizontal. As a result, the second package support member 51b and the thread feeding package P1 come into contact with each other to lift the thread feeding package P1, and the thread feeding package P1 and the package supporting portion 32b are separated from each other. The supply device 50 retracts a part of the second slide portion 51a of the second support mechanism 51 by the second supply drive mechanism 52. As described above, the supply device 50 acquires the yarn feeding package P1 from the holding unit 32.

The feeding operation in which the feeding device 50 supplies the yarn feeding package P1 to the peg 24 will be described. The feeding device 50 advances a part of the second slide portion 51a of the second support mechanism 51 with respect to the peg 24 from which the thread feeding bobbin B1 has been removed by the second feeding driving mechanism 52, and causes the thread feeding package P1 to advance. The package support members 25a and 25b of the peg 24 are positioned in the hollow portion. When the package support members 25a and 25b of the peg 24 are positioned in the hollow portion of the yarn feeding package P1, the supply device 50 swings the second slide portion 51a downward by the second supply drive mechanism 52 to support the second package. The member 51b is tilted with respect to the horizontal direction. As a result, the package supporting members 25a and 25b of the peg 24 come into contact with the yarn feeding package P1, the yarn feeding package P1 is supported by the peg 24, and the second package supporting member 51b and the yarn feeding package P1 are separated from each other. .. The supply device 50 retracts a part of the second slide portion 51a of the second support mechanism 51 by the second supply drive mechanism 52. As described above, the supply device 50 attaches the yarn feeding package P1 to the peg 24.

The thread splicing device 60 splices the thread Y of the thread feeding package P1 supported by the first peg 24a and the thread Y of the thread feeding package P1 supported by the second peg 24b. As shown in FIGS. 12, 13 and 14, the thread splicing device 60 includes a catching guide mechanism (guide unit) 61, a first rotation mechanism (operation mechanism) 62, and a second rotation mechanism (operation mechanism) 63. , A thread splicing mechanism 64, and the like.

The thread joining device 60 is provided so as to be movable by a moving mechanism (not shown) in the opposite direction (Y direction) between the changing unit 33 and the thread feeding unit 5. The thread splicing device 60 has a standby position in which the thread splicing device 60 is arranged in the base 34 and a thread splicing position in which the thread splicing device 60 moves toward the thread feeding unit 5 and advances to the outside of the base 34. And move between.

The catching guide mechanism 61 catches the thread Y of the thread feeding package P1 and guides the thread Y to the thread joining mechanism 64. The catching guide mechanism 61 has a first thread end Y1 of the thread Y of the thread feeding package P1 supported by one peg 24 and a second thread Y of the thread Y of the thread feeding package P1 supported by the other peg 24. It captures the end Y2 and guides it to the thread splicing mechanism 64. The capture guide mechanism 61 has a suction portion 61a and a thread joint arm portion 61b.

The suction portion 61a sucks and captures the thread Y. The suction portion 61a has a suction pipe 61c, a suction nozzle 61d, and a hook portion 61e. The suction nozzle 61d is provided at the tip of the suction pipe 61c. The suction nozzle 61d sucks the thread Y. A negative pressure source (not shown) is connected to the suction pipe 61c. As a result, a suction flow is generated in the suction nozzle 61d. The base end side of the suction pipe 61c is connected to the thread joint arm portion 61b. The hook portion 61e is provided at the tip of the suction pipe 61c and at a position opposite to the suction nozzle 61d. The hook portion 61e locks the thread Y entangled by the thread joining device 60. The thread joint arm portion 61b moves the suction portion 61a. The thread joint arm portion 61b includes a link mechanism and a plurality of motors. The thread joint arm portion 61b is supported by the bracket 61f.

The first rotation mechanism 62 and the second rotation mechanism 63 operate the pegs 24, respectively, to rotate the yarn feeding package P1. When the first rotating mechanism 62 and the second rotating mechanism 63 guide the thread Y to the thread joining mechanism 64 by the catching guide mechanism 61, the thread feeding package P1 is rotated and the thread Y is fed out from the thread feeding package P1. Let me. The rotation direction of the yarn feeding package P1 referred to here is not only the direction in which the yarn Y is unwound from the yarn feeding packages P1 and P1 (feeding direction) but also the direction in which the yarn Y is rewound to the yarn feeding packages P1 and P1 (rewinding). Direction) is also included.

The first rotation mechanism 62 operates the first peg 24a. The first rotation mechanism 62 includes a first thread splicing driver 62a, a first motor 62b, and a first thread splicing arm portion 62c. The first thread splicing driver 62a is rotatably supported by the first thread splicing arm portion 62c. The first thread joint driver 62a is provided with a first driven pulley 62d. The first motor 62b is fixed to the first thread joint arm portion 62c. A first drive pulley 62e is connected to the output shaft of the first motor 62b. The first motor 62b rotationally drives the first drive pulley 62e around the axis. A first power transmission belt 62f is hung on the first driven pulley 62d and the first drive pulley 62e. As a result, the first thread joint driver 62a is rotated by the rotational drive of the first motor 62b.

The second rotation mechanism 63 operates the second peg 24b. The second rotation mechanism 63 includes a second thread splicing driver 63a, a second motor 63b, and a second thread splicing arm portion 63c. The second thread splicing driver 63a is rotatably supported by the second thread splicing arm portion 63c. The second thread joint driver 63a is provided with a second driven pulley 63d. The second motor 63b is fixed to the second thread joint arm portion 63c. A second drive pulley 63e is connected to the output shaft of the second motor 63b. The second motor 63b rotationally drives the second drive pulley 63e around the axis. A second power transmission belt 63f is hung on the second driven pulley 63d and the second drive pulley 63e. As a result, the second thread joint driver 63a is rotated by the rotational drive of the second motor 63b.

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

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

The splicer 66 includes a thread joint portion 66a and a pair of holding mechanisms 66b and 66c. The thread joint portion 66a entangles the thread Y of the thread feeding package P1 supported by the first peg 24a and the thread Y of the thread feeding package P1 supported by the second peg 24b. The sandwiching mechanisms 66b and 66c are provided at positions where the thread joint portion 66a is sandwiched. The sandwiching mechanisms 66b and 66c sandwich the thread Y to be inserted into the chamber of the thread joint portion 66a.

As shown in FIGS. 12 and 13, the first guide mechanism 67 locks and guides the thread Y. The first guide mechanism 67 has a first hook (locking portion / second locking portion) 67a, a second hook (locking portion / second locking portion) 67b, and a third hook 67c. ing. The first hook 67a, the second hook 67b, and the third hook 67c are provided so as to be swingable. The first hook 67a is provided with a potentiometer (acquisition unit) 164 (see FIG. 16) for detecting the tension of the thread Y. The thread splicing device 60 controls the operation of the first motor 62b of the first rotation mechanism 62 based on the detection result of the potentiometer 164. That is, the yarn splicing device 60 adjusts the rotation amount (feeding amount) of the yarn feeding package P1 based on the detection result of the potentiometer 164, and pulls out the yarn Y from the yarn feeding package P1 with a predetermined tension.

The second guide mechanism 68 locks and guides the thread Y. The second guide mechanism 68 has a first hook (locking portion / first locking portion) 68a, a second hook (locking portion / first locking portion) 68b, and a third hook 68c. ing. The first hook 68a, the second hook 68b, and the third hook 68c are provided so as to be swingable. The first hook 68a is provided with a potentiometer 164 for detecting the tension of the thread Y. The thread splicing 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 (feeding amount) of the yarn feeding package P1 based on the detection result of the potentiometer 164, and pulls out the yarn Y from the yarn feeding package P1 with a predetermined tension.

The thread splicing operation of the thread splicing device 60 will be described. Specifically, the first yarn end Y1 on the outer layer side of the yarn feeding package P1 supported by the first peg 24a and the inner layer of the yarn feeding package P1 supported by the second peg 24b by the yarn joining device 60. A case of performing thread splicing with the second thread end Y2 on the side will be described as an example.

When the thread splicing device 60 starts the thread splicing operation, as shown in FIG. 14, the first rotating mechanism 62 operates the first peg 24a, and the second rotating mechanism 63 operates the second peg 24b. The adapter 10 is rotated to a position where the first thread end Y1 and the second thread end Y2 can be captured by the suction portion 61a. Specifically, in the first rotation mechanism 62, the first thread splicing driver 62a is engaged with the first wheel 25j of the first peg 24a to drive the first motor 62b to rotate the first thread splicing driver 62a. Let me. Similarly, in the second rotation mechanism 63, the second thread splicing driver 63a is engaged with the first wheel 25j of the second peg 24b to drive the second motor 63b to rotate the second thread splicing driver 63a. When the first thread splicing driver 62a and the second thread splicing driver 63a rotate, the thread feeding package P1 supported by each of the first peg 24a and the second peg 24b rotates, and the adapter 10 rotates accordingly. The thread splicing device 60 detects a detector (not shown) provided on the adapter 10 by a sensor (not shown), controls the first motor 62b and the second motor 63b based on the detection result of the sensor, and controls the adapter. Rotate 10 to a predetermined position.

When the adapter 10 is rotated, the thread splicing device 60 operates the thread splicing arm portion 61b of the catching guide mechanism 61 from the adapter 10 of the thread feeding package P1 supported by the suction portion 61a on the first peg 24a. The first yarn end Y1 is captured, and the second yarn end Y2 is captured from the adapter 10 of the yarn feeding package P1 supported by the second peg 24b. At this time, the thread joining device 60 operates the first peg 24a by the first rotating mechanism 62 and operates the second peg 24b by the second rotating mechanism 63 to rotate the yarn feeding package P1. As a result, the yarn Y is pulled out from the yarn feeding package P1 with a predetermined tension.

The thread splicing device 60 hangs the thread Y having the first thread end Y1 on the first guide mechanism 67 and guides the thread Y to the splicer 66 by the suction portion 61a, and guides the thread Y having the second thread end Y2 to the second. The thread Y is guided to the splicer 66 while being hung on the guide mechanism 68. When the thread splicing device 60 guides the thread Y to the splicer 66, the splicer 66 executes a thread splicing operation. As a result, the yarn joining device 60 is on the inner layer side of the first yarn end Y1 on the outer layer side of the yarn feeding package P1 supported by the first peg 24a and the inner layer side of the yarn feeding package P1 supported by the second peg 24b. Thread splicing with the second thread end Y2 is performed.

The moving device 70 rotates the collecting device 40, the feeding device 50, and the thread joining device 60. The moving device 70 moves each of the collecting device 40, the feeding device 50, and the thread joining device 60 to a working position with respect to the peg 24. Further, the moving device 70 moves the collecting device 40 and the supplying device 50 to a working position with respect to the holding unit 32. As shown in FIG. 9, the moving device 70 includes a rotation support unit 71 and a replacement unit drive unit 72.

The rotation support portion 71 supports the recovery device 40, the supply device 50, and the thread splicing device 60. The rotation support portion 71 is rotatably provided on the base 34 around a rotation axis extending in the vertical direction. The rotary support unit 71 supplies the recovery device 40 so that the recovery device 40, the supply device 50, and the thread splicing device 60 are arranged so as to face three different directions when viewed from the rotation axis direction of the rotation support section 71. It supports the device 50 and the thread splicing device 60.

The rotation support portion 71 has a wheel (not shown). The wheel is a Geneva wheel that constitutes the Geneva mechanism. The replacement unit drive unit 72 rotates the rotation support unit 71. The replacement unit drive unit 72 is a Geneva driver that constitutes a Geneva mechanism. The replacement unit drive unit 72 is rotated by a rotary drive of a motor (not shown). In the moving device 70, the rotation support unit 71 is rotated by driving the replacement unit drive unit 72.

The moving device 70 stops the rotation support portion 71 at seven points. The moving device 70 has a position where the collecting device 40 collects the yarn feeding bobbin B1 from the first peg 24a, a position where the collecting device 40 collects the yarn feeding bobbin B1 from the second peg 24b, and a position where the feeding device 50 collects the yarn feeding bobbin B1 from the first peg. The position where the yarn feeding package P1 is supplied to the 24a, the position where the feeding device 50 supplies the yarn feeding package P1 to the second peg 24b, the position where the yarn joining device 60 performs the yarn splicing, and the feeding device 50 is the holding unit 32. The rotation support portion 71 is stopped at a position where the yarn feeding package P1 is acquired from the yarn feeding package P1 and a position where the collecting device 40 supplies the yarn feeding bobbin B1 to the holding unit 32.

The entire false twisting system 1 has been described above, but the package changing device 7, which is one of the features of one aspect 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. 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 have different installation positions and installation directions, but their configurations are different. Is the same. Therefore, as shown in FIG. 16, only the second hook 68b will be described in detail here, and the remaining first hook 67a, second hook 67b, third hook 67c, first hook 68a, and third hook A detailed description of the 68c will be omitted. Further, in the following, the potentiometer 164 will be described as being 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. However, the potentiometer 164 may be provided only on the first hook 67a and the first hook 68a, for example.

As shown in FIG. 15, the second hook 68b is inserted into the insertion groove 65b formed in the base flat plate 65a which is a part of the base 65. As shown in FIG. 16, in the second hook 68b, the tip end portion 68bb arranged above the base plate 65a swings with the base end portion 68ba arranged below the base flat plate 65a as the swing axis. It is provided to do so. The base end portion 68ba is fixed to a rotary guide 162 rotatably provided with respect to a rotating shaft 161a fixed to a part of the base 65. Therefore, when the thread Y is locked to 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 of the thread Y on the second hook 68b is proportional to the tension acting on the thread Y.

The rotary guide 162 is provided so that when the stress acting on the second hook 68b becomes larger than a predetermined value, the amount of swing (moving amount) from the initial state increases according to the stress, and the rotary guide 162 acts on the second hook 68b. When the stress is less than a predetermined value, it is urged to return to the initial state. In the present embodiment, the rotary guide 162 is connected to the fixed portion 161b which is a part of the base 65 via an elastic member (for example, a spring member) 163. As a result, when the stress acting on the second hook 68b becomes larger than the predetermined value, the swing amount (moving amount) from the initial state of the second hook 68b increases according to the stress, and the stress acting on the second hook 68b. Returns to the initial state when becomes less than a predetermined value.

One end of the rotary guide 162 in the axial direction is connected to the potentiometer 164. The potentiometer 164 acquires the amount of rotation of the rotary guide 162 with respect to the base plate 65a. The amount of rotation acquired by the potentiometer 164 is acquired by the control unit 90, which will be described later. Further, the rotary guide 162 is provided with a rotary solenoid 165 that forcibly rotates the rotary guide 162. The rotary solenoid 165 forcibly rotates the second hook 68b in the direction of the arrow shown in FIG. 19 to release the thread Y locked in the second hook 68b. The rotary solenoid 165 is controlled by the control unit 90.

Next, the control unit 90 (see FIGS. 7 and 17), which is one of the feature units of one aspect 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 part is recorded in the ROM. Further, each function in the drive control unit 90a and the determination unit 90b, which will be described in detail later, is executed under the control of the CPU by loading predetermined computer software on the hardware such as the CPU and the main storage unit. To.

The drive control unit 90a controls the first motor 62b of the first rotation mechanism 62 and the second motor 63b of the second rotation mechanism 63 so that the swing amount acquired by the potentiometer 164 is within the first predetermined range. The amount of thread Y unwound from each of the thread packages P1 and P1 is controlled. 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 provided so as to be movable wider than the first predetermined range. .. The determination unit 90b in the thread joining device 60 is based on the amount of rotation (the amount of swing of the first hook 67a and the first hook 68a) acquired by the potentiometer 164 when the capture guide mechanism 61 is moved to the inspection position P61. Determine if the thread splicing is successful.

Next, the yarn end Y1 on the outer layer side of the yarn feeding package P1 supported by the first peg 24a, which is one of the feature portions of one aspect of the present invention, and the yarn feeding supported by the second peg 24b. The control when the thread end Y1 and the thread end Y2 are guided to the thread joining mechanism 64 by the catching guide mechanism 61 in order to cause the thread joining device 60 to join the thread end Y2 on the inner layer side of the package P1 will be described.

When the thread splicing device 60 starts the thread splicing operation, as shown in FIGS. 18 and 19 (a), the thread splicing arm portion 61b of the catching guide mechanism 61 is moved to support the suction nozzle 61d on the second peg 24b. The thread end Y2 is captured by the suction nozzle 61d at the adapter 10 of the thread feeding package P1. Next, the thread splicing device 60 moves the thread splicing arm portion 61b in this state to lock the thread Y of the thread feeding package P1 supported by the second peg 24b to the first hook 68a and the second hook 68b. After that, the suction nozzle 61d is moved in the direction of the adapter 10 of the yarn feeding package P1 supported by the first peg 24a. As a result, the thread Y is pulled out from the thread feeding package P1 supported by the second peg 24b.

Here, the control when the catching guide mechanism 61 pulls out the yarn Y from the yarn feeding package P1 supported by the second peg 24b will be described. When the thread end Y2 captured by the suction nozzle 61d is moved toward the first peg 24a while the thread Y is locked to the first hook 68a and the second hook 68b, tension is generated in the thread Y, and FIG. As shown in b), the stress is transmitted to the first hook 68a and the second hook 68b. As a result, the first hook 68a and the second hook 68b swing in the direction of the arrow shown in FIG. 19B according to the tension generated in the thread Y.

The control unit 90 controls the second rotation mechanism 63 based on the rotation amount of the rotary guide 162 acquired by the potentiometer 164, and rotates the yarn feeding package P1 supported by the second peg 24b in the feeding direction. Specifically, the control unit 90 controls the second rotation mechanism 63 so that the swing amounts of the first hook 68a and the second hook 68b are within the first predetermined range, and the yarn Y unwound from the yarn feeding package P1. Control the amount of feeding. Here, the second rotation mechanism 63 is controlled so that the swing amount of at least one of the first hook 68a and the second hook 68b is within the first predetermined range, and the yarn Y unwound from the yarn feeding package P1 is unwound. The amount may be controlled.

In the present embodiment, the swing amount of the first hook 68a and the second hook 68b is acquired by the potentiometer 164 as the rotation amount of the rotary guide 162. Therefore, the control unit 90 controls the second rotation mechanism 63 so that the rotation amount acquired by the potentiometer 164 is in the second predetermined range corresponding to the first predetermined range, and the yarn delivered from the yarn feeding package P1. Control the feeding amount of Y.

For example, when the amount of rotation acquired by the potentiometer 164 exceeds the second predetermined range, the second motor 63b is controlled to rotate the yarn feeding package P1 supported by the second peg 24b in the feeding direction. .. As a result, the yarn Y is unwound from the yarn feeding package P1, so that the tension generated in the yarn Y is relaxed. Here, the first predetermined range is the swing amount of the first hook 68a and the second hook 68b converted from the tension range that does not cause damage to the thread Y.

Next, the catching guide mechanism 61 moves the thread joint arm portion 61b to move the suction nozzle 61d that has captured the thread end Y2 to the thread feeding package P1 supported by the first peg 24a, and the thread end is moved by the suction nozzle 61d. Capture Y1. Next, as shown in FIG. 20, the thread splicing device 60 moves the thread splicing arm portion 61b with the thread end Y1 and the thread end Y2 captured, and the thread feeding package P1 supported by the first peg 24a. After the thread Y is locked to the first hook 67a and the second hook 67b, the suction nozzle 61d is moved in the direction of the thread joining mechanism 64. As a result, the yarn Y is pulled out from the yarn feeding package P1 supported by the first peg 24a. The thread Y is continuously pulled out from the thread feeding package P1 supported by the second peg 24b.

Here, an example in which the thread Y is locked to the first hook 68a and the second hook 68b and then the thread end Y2 is captured while the thread end Y1 is being captured has been described. After maintaining the tension of the thread Y locked to the hook 68a and the second hook 68b by an appropriate method, the thread end Y1 is opened, and then only the thread end Y2 is captured by the suction nozzle 61d to capture the thread Y. May be locked to the first hook 67a and the second hook 67b. That is, the thread Y of the thread feeding package P1 supported by the second peg 24b and the thread Y of the thread feeding package P1 supported by the first peg 24a are separately pulled out, and the thread Y supported by the second peg 24b is pulled out separately. After the thread Y of the package P1 is locked to the first hook 68a and the second hook 68b, the thread Y of the thread feeding package P1 supported by the first peg 24a is locked to the first hook 67a and the second hook 67b. You may.

Here, the control when the catching guide mechanism 61 pulls out the yarn Y from the yarn feeding package P1 supported by the first peg 24a will be described. When the thread end Y1 captured by the suction nozzle 61d is moved toward the thread splicing mechanism 64 with the thread Y locked to the first hook 67a and the second hook 67b, tension is generated in the thread Y and the first hook It is transmitted as stress to 67a and the second hook 67b. As a result, the first hook 67a and the second hook 67b swing according to the tension generated in the thread Y.

The control unit 90 controls the first rotation mechanism 62 based on the rotation amount of the rotary guide 162 acquired by the potentiometer 164, and rotates the yarn feeding package P1 supported by the first peg 24a in the feeding direction. Specifically, the control unit 90 controls the first rotation mechanism 62 so that the swing amounts of the first hook 67a and the second hook 67b are within the first predetermined range, and the yarn Y unwound from the yarn feeding package P1. Control the amount of feeding. Here, the first rotation mechanism 62 is controlled so that the swing amount of at least one of the first hook 67a and the second hook 67b is within the first predetermined range, and the yarn Y unwound from the yarn feeding package P1 is unwound. The amount may be controlled.

In the present embodiment, as described above, the swing amount of the first hook 67a and the second hook 67b is acquired by the potentiometer 164 as the rotation amount of the rotary guide 162. Therefore, the control unit 90 controls the first rotation mechanism 62 so that the rotation amount acquired by the potentiometer 164 is in the second predetermined range corresponding to the first predetermined range, and the yarn delivered from the yarn feeding package P1. Control the feeding amount of Y.

For example, when the amount of rotation acquired by the potentiometer 164 exceeds the second predetermined range, the first motor 62b is controlled to rotate the yarn feeding package P1 supported by the first peg 24a in the feeding direction. .. As a result, the yarn Y is unwound from the yarn feeding package P1, so that the tension generated in the yarn Y is relaxed. While the control unit 90 is controlling the first rotation mechanism 62, the control of the first rotation mechanism 62 as described above is continued.

As described above, the thread splicing device 60 controls the second peg 24b by the second rotating mechanism 63 when the thread Y is pulled out from the thread feeding package P1 supported by the second peg 24b by the catching guide mechanism 61. Then, the yarn feeding package P1 is rotated in the feeding direction. As a result, the tension of the yarn Y when the yarn Y is unwound from the yarn feeding package P1 can be maintained within a predetermined range. Similarly, when the yarn splicing device 60 pulls out the yarn Y from the yarn feeding package P1 supported by the first peg 24a by the catching guide mechanism 61, the yarn feeding device 60 controls the first peg 24a by the first rotating mechanism 62. The package P1 is rotated in the feeding direction. As a result, the tension of the yarn Y when the yarn Y is unwound from the yarn feeding package P1 can be maintained within a predetermined range.

Next, the yarn end Y1 on the outer layer side of the yarn feeding package P1 supported by the first peg 24a by the yarn splicing device 60, which is one of the feature portions of one aspect of the present invention, and the second peg 24b. A determination method for determining whether or not the thread end Y1 and the thread end Y2 are properly spliced (entangled) after the thread splicing with the thread end Y2 on the inner layer side of the thread feeding package P1 will be described. ..

Threads entangled (thread spliced) by the thread splicing device 60 (hereinafter, thread ends Y2 of the thread Y of the thread feeding package P1 entangled by the thread splicing device 60 and supported by the second peg 24b, and the first peg The yarn in a state where the yarn Y1 of the yarn Y of the yarn feeding package P1 supported by 24a is connected to the yarn end Y1 is referred to as "continuous yarn (continuous synthetic yarn) Y0"), and the first hooks 67a and 68a are It is locked to 2 hooks 67b and 68b. The thread splicing device 60 operates the rotary solenoids 165 provided on the second hooks 67b and 68b to release the locking of the continuous threads Y0 to the second hooks 67b and 68b. As a result, the continuous thread Y0 is in a state of being locked only to the first hooks 67a and 68a.

Next, as shown in FIG. 21, the thread splicing device 60 moves the thread splicing arm portion 61b of the catching guide mechanism 61 to position the hook portion 61e between the first hook 67a and the first hook 68a. , The continuous thread Y0 is locked by the hook portion 61e. More specifically, for example, the catching guide mechanism 61 has a thread end Y1 and a thread end Y2 between the capturing portion of the continuous thread Y0 and the locking portion by the first hook 67a (which may be the first hook 68a). The continuous thread Y0 is captured so that the entangled portion YC with the thread is located.

Next, the thread joining device 60 moves the hook portion 61e upward and moves it to the predetermined inspection position P61 in a state where the continuous yarn Y0 is captured by the hook portion 61e. By such an operation of the catching guide mechanism 61, a predetermined tension is generated in the continuous yarn Y0. The control unit 90 acquires the amount of swing generated in the first hook 67a and the first hook 68a at this time, that is, the amount of rotation of the rotary guides 162 and 162 acquired by the respective potentiometers 164 and 164. The control unit 90 may acquire the amount of swing generated in at least one of the first hook 67a and the first hook 68a.

When the hook portion 61e is moved to the inspection position P61, the control unit 90 together with the thread end Y1 based on the rotation amount acquired by the potentiometers 164 and 164 provided on the first hook 67a and the first hook 68a. It is determined whether or not the thread splicing with the thread end Y2 is successful. In other words, the control unit 90 determines the quality of the entangled portion YC. For example, when the control unit 90 has a rotation amount acquired by the potentiometers 164 and 164 provided on the first hook 67a and the first hook 68a when the hook unit 61e is moved to the inspection position P61 is a predetermined value or more. That is, when a predetermined tension is generated in the continuous yarn Y0, it is determined that the yarn splicing between the yarn end Y1 and the yarn end Y2 is successful.

On the other hand, when the rotation amount acquired by the potentiometers 164 and 164 provided on the first hook 67a and the second hook 68b when the hook portion 61e is moved to the inspection position P61 is smaller than the predetermined value ( (Including the case where the tension is 0), that is, when a predetermined tension is not generated in the continuous yarn Y0, the entangled portion YC is not perfect (a state where it is unwound when pulled), or the yarn end Y1 and the yarn are unwound. It is considered that the end Y2 is not completely connected, and it is determined that the thread splicing between the thread end Y1 and the thread end Y2 has failed.

The control unit 90 is a general control device that collectively controls the false twist processing system 1 including, for example, a false twist processing machine 2, a first transfer device 3, a second transfer device 4, a package replenishment device 6, and a package exchange device 7. (Not shown), or the determination result may be transmitted to a terminal device carried by an operator or the like. Further, the integrated control device that has received the determination result may display the determination result on a display device or the like provided in the integrated control device. In addition, the integrated control device may execute the transmission of the determination result to the mobile terminal.

In the package changing device 7 described in the above embodiment, since the yarn feeding package P1 can be rotated in the feeding direction, the tension generated in the yarn Y when the yarn Y is pulled out from the yarn feeding package P1 by the catching guide mechanism 61 is relaxed. can do. Further, in the package changing device 7, the tension generated when guiding the thread end Y1 and the thread end Y2 of the thread feeding package P1 to the thread joining device 60 is acquired by the first hooks 67a and 68a and the second hooks 67b and 68b. , The feeding amount of the yarn feeding package P1 is controlled according to the acquired tension. As a result, the yarn end Y1 and the yarn end Y2 of the yarn feeding package P1 can be pulled out and guided to the yarn splicing device 60 while the tension acting on the yarn Y is maintained within a certain range.

In the package changing device 7 of the above embodiment, the thread splicing device 60 that connects the thread end Y1 and the thread end Y2 of the thread feeding package P1 and the thread end Y1 and the thread end Y2 of the thread feeding package P1 are guided to the thread splicing device 60. It has a catching guide mechanism 61, a supply device 50 for supplying the yarn feeding package P1 to the reel stand 20, and a collecting device 40 for collecting the yarn feeding bobbin B1 from the reel stand 20. Therefore, the replacement work of the thread feeding package P1 and the thread joining work can be performed by the package changing device 7 without human intervention.

In the package changing device 7 of 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 the tension acting on the thread Y is larger than a predetermined value. Then, the amount of swing from the initial state is increased according to the tension. Therefore, it is possible to easily and compactly configure the locking portion that is desired to be provided so that the amount of movement from the initial state increases according to the tension.

In the package changing device 7 of the above embodiment, the first hooks 67a and 68a and the second hooks 67b and 68b are movably provided in a range wider than the above-mentioned first predetermined range. Therefore, even if a tension larger than the first predetermined range acts on the first hooks 67a and 68a and the second hooks 67b and 68b, it is possible to swing according to the tension. As a result, even if a tension larger than the first predetermined range unintentionally acts on the first hooks 67a and 68a and the second hooks 67b and 68b, the tension is relaxed and the thread Y is damaged or cut. Tension is reduced.

In the package changing device 7 of the above embodiment, the first hook 68a and the second hook 68b for locking the yarn end Y2 drawn from the yarn feeding package P1 supported by the second peg 24b, and the first hook 24a are supported. It has a first hook 67a and a second hook 67b for locking the thread end Y1 drawn out from the thread feeding package P1, respectively. As a result, the tensions of both the yarn Y drawn from the yarn feeding package P1 supported by the second peg 24b and the yarn Y drawn from the yarn feeding package P1 supported by the first peg 24a can be appropriately adjusted. ..

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

In the package changing device 7 of the above embodiment, the first hook 68a and the second hook 68b for locking the yarn end Y2 drawn from the yarn feeding package P1 supported by the second peg 24b, and the first hook 24a are supported. An example has been described in which the first hook 67a and the second hook 67b for locking the thread end Y1 drawn out from the thread feeding package P1 are arranged so as to sandwich the thread splicing mechanism 64. One aspect of the invention is not limited to this. The position where these hooks (locking portions) are arranged does not matter as long as it is a path when the catching guide mechanism 61 guides the thread joint device 60. Further, the number of hooks is not limited to that described in the above embodiment, and may be appropriately arranged.

In the package changing device 7 of the above embodiment, one catching guide mechanism 61 is drawn from the yarn feeding package P1 supported by the second peg 24b from the yarn end Y2 and the yarn feeding package P1 supported by the first peg 24a. Although the description has been given with an example of capturing both of the drawn thread ends Y1 and guiding them to the thread joining device 60, one aspect of the present invention is not limited to this. For example, the package changing device 7 is drawn from a catching guide mechanism that captures the yarn end Y2 drawn from the yarn feeding package P1 supported by the second peg 24b and the yarn feeding package P1 supported by the first peg 24a. A configuration may be provided in which a capture guide mechanism for capturing the thread end Y1 is provided.

In the package changing device 7 of the above embodiment, an example of capturing the continuous thread Y0 by the hook portion 61e when guiding the continuous thread Y0 to the inspection position P61 has been described. For example, the continuous thread Y0 is captured by the suction nozzle 61d. May be good.

In the above embodiment, the traveling carriage 30 provided with wheels has been described as an example of the traveling unit, but a traveling unit having a configuration in which a linear motion mechanism is provided instead of the wheels may be used.

7 ... Package exchange device (thread splicing system for synthetic fiber yarn), 20 ... Crill stand, 30 ... Traveling carriage (traveling unit), 40 ... Recovery device, 50 ... Supply device, 60 ... Thread splicing device, 61 ... Capture guidance mechanism ( Guide part), 61d ... Suction nozzle, 61e ... Hook part, 64 ... Thread splicing mechanism, 65 ... Base, 67a ... First hook (locking part / second locking part), 67b ... Second hook (locking) Unit / second locking portion), 68a ... 1st hook (locking portion / first locking portion), 68b ... second hook (locking portion / first locking portion), 90 ... control unit, 90a ... Drive control unit, 90b ... Judgment unit, 162 ... Rotary guide, 164 ... Potential meter (acquisition unit), 165 ... Rotary solenoid, B1 ... Thread feeding bobbin, P1 ... Thread feeding package, P61 ... Inspection position, Y0 ... Continuous thread (continuous) Synthetic fiber yarn), Y1 ... yarn end (first yarn end), Y2 ... yarn end (second yarn end), YC ... entangled portion.

Claims (5)

A reel stand in which a yarn feeding package in which a synthetic yarn made of synthetic fibers is wound around a bobbin is supported by a yarn feeding package support portion, and a processing device for processing the synthetic yarn supplied from the yarn feeding package. A set of two yarn feeding packages used in a textile machine including a winding device for winding the processed synthetic fiber yarn to form a winding package, and supported by the yarn feeding package support portion. It is a yarn splicing system for synthetic fibers that pulls out the yarn ends from each of the yarn ends and splices the yarn ends with each other.
A thread joint portion that entangles the first thread end, which is the thread end of the one thread feeding package, and the second thread end, which is the thread end of the other thread feeding package.
A guide portion that guides the first yarn end and the second yarn end to the yarn joint portion, and
A locking portion in which the synthetic fiber yarn is locked when the guide portion guides the first yarn end and the second yarn end to the yarn joint portion, and the tension acting on the synthetic fiber yarn is a predetermined value. When it becomes larger, the amount of movement from the initial state is increased according to the tension, and when the tension acting on the synthetic yarn is equal to or less than the predetermined value, it is urged to return to the initial state. With the locking part
An operation mechanism for driving the yarn feeding package support portion that rotatably supports the yarn feeding package in the feeding direction in the creel stand.
A traveling unit that moves the thread joint portion, the guide portion, the locking portion, and the base supporting the operation mechanism along the creel stand.
An acquisition unit that acquires the movable amount of the locking portion with respect to the base, and
A yarn splicing system for synthetic yarns, comprising a drive control unit that controls the operation mechanism so that the movable amount falls within the first predetermined range and controls the feeding amount of the synthetic fiber yarns fed out from the yarn feeding package. .. A recovery device for collecting the bobbin supported by the yarn feeding package support portion,
A feeding device for attaching the yarn feeding package to the yarn feeding package support portion is further provided.
The yarn splicing system for synthetic fibers according to claim 1, wherein the recovery device and the supply device are supported on the base. The locking portion is provided so as to be swingable with respect to the base, and when the tension acting on the synthetic fiber yarn becomes larger than a predetermined value, the swing amount from the initial state increases according to the tension. And
The yarn joining system for synthetic fibers according to claim 1 or 2, wherein the acquisition unit acquires the amount of swing of the locking portion with respect to the base. The yarn splicing system for synthetic fibers according to any one of claims 1 to 3, wherein the locking portion is movably provided in a range wider than the first predetermined range. The locking portion is a first locking portion that locks the synthetic fiber yarn wound around one of the yarn feeding packages, and a first locking portion that locks the synthetic fiber yarn wound around the other yarn feeding package. The yarn splicing system for synthetic fibers according to any one of claims 1 to 4, further comprising two locking portions.

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