JP7425695B2 - Splicing system for synthetic yarns - Google Patents

Description

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

There are known false twisting machines that perform false twisting on a plurality of synthetic yarns supplied from a yarn supply package, and wind up the processed synthetic yarns in a winding device to form a winding package (for example, patented Reference 1). In a false twisting machine, a creel stand that holds a plurality of yarn supply packages uses a set of two pegs that hold the yarn supply packages in order to continuously supply synthetic yarn. In this configuration, the synthetic fiber yarn on the inner layer side of the yarn feeding package supported by one peg is connected to the synthetic fiber yarn on the outer layer side of the yarn feeding package supported by the other peg. Thereby, in the creel stand, even if one yarn supplying package runs out of synthetic yarns, the synthetic yarns are supplied from the other yarn supplying package, so that the synthetic yarns can be continuously supplied.

In such a configuration, when the synthetic yarn in the yarn feeding package runs out, a new package is supplied, and the synthetic yarn in the yarn feeding package supported by one peg and the yarn feeding package supported by the other peg are supplied. It is necessary to splice the yarn with the synthetic yarn of the package. Such yarn splicing work (tail splicing work) is generally performed manually. Patent Document 2 discloses a work cart that is provided so as to be able to run along such a creel stand, and on which a worker who replaces yarn supply packages and splices yarns rides.

Japanese Patent Application Publication No. 6-200434 Special Publication No. 7-68010

There is a desire to have a device perform the yarn splicing work described above without human intervention. In this case, it is necessary to pull out the synthetic yarn from each of the pair of yarn supply packages and guide the yarn to the splicing section of the yarn splicing device where the synthetic yarns are entangled. At this time, if the tension acting on the synthetic yarn exceeds a predetermined range, the yarn will be damaged and the quality of the intertwined portion will deteriorate. As a result, if the rate of passing the quality inspection of the intertwined portions in the downstream process becomes low, the production efficiency of the wound package in the false twisting machine decreases.

SUMMARY OF THE INVENTION Accordingly, an object of one aspect of the present invention is to provide a synthetic yarn yarn that can pull out the yarn end of a yarn supply package and guide it to a yarn splicing device while maintaining the tension acting on the synthetic yarn within a certain range. The goal is to provide a transmission system.

A yarn splicing system for synthetic yarns according to one aspect of the present invention includes a creel stand in which a yarn supply package in which a synthetic yarn made of synthetic fibers is wound around a bobbin is supported by a yarn supply package support part, and Used in textile machines that are equipped with a processing device that processes the supplied synthetic fiber yarn and a winding device that winds up the processed synthetic yarn to form a wound package, and is supported by the yarn supply package support section. A yarn splicing system for synthetic fiber yarn that pulls out yarn ends from each of a set of two yarn supply packages and splices the yarn ends with each other, the first yarn end being the yarn end of one yarn supply package. and a second yarn end which is the yarn end of the other yarn feeding package; a guide portion that guides the first yarn end and the second yarn end to the yarn splicing portion; A locking part where the synthetic fiber yarn is locked when guiding the end and the second yarn end to the yarn splicing part. A locking part is provided to increase the amount of movement and is biased to return to the initial state when the tension acting on the synthetic yarn is less than a predetermined value, and a creel stand is used to feed the yarn supply package. an operating mechanism that drives a yarn feeding package support section that supports the yarn feeding package rotatably in a direction; a traveling unit that moves a base that supports the yarn splicing section, the guide section, the locking section, and the operating mechanism along the creel stand; an acquisition unit that acquires the movable amount of the locking portion with respect to the base; and a drive control that controls the operating mechanism so that the movable amount is within a first predetermined range, and controls the amount of synthetic yarn fed out from the yarn supply package. It is equipped with a section and a section.

Note that the direction in which the synthetic yarn is paid out here is a concept that includes not only the direction in which the synthetic yarn is paid out from the yarn supply package but also the direction in which it is rewound onto the yarn supply package. In the synthetic yarn splicing system having this configuration, the yarn supply package can be rotated in the feeding direction, so that the tension generated in the yarn when the yarn is pulled out from the yarn supply package by the guide section can be alleviated. Furthermore, in the yarn splicing system for synthetic yarns having this configuration, the tension generated when guiding the yarn end of the yarn supply package to the yarn splicing device is acquired by the locking part, and the tension of the yarn supply package is adjusted according to the acquired tension. The amount of feed is controlled. Thereby, the yarn end of the yarn supply package can be pulled out and guided to the yarn splicing device while maintaining the tension acting on the synthetic yarn within a certain range.

The synthetic yarn splicing system according to one aspect of the present invention further includes a collection device that collects the bobbin supported by the yarn supply package support section, and a supply device that attaches the yarn supply package to the yarn supply package support section. The recovery device and the supply device may be supported on the base. With this configuration, it is possible to have the synthetic fiber yarn splicing system execute the replacement work of the yarn supply package held on the creel stand and the yarn splicing work without human intervention.

In the synthetic fiber yarn splicing system according to one aspect of the present invention, the locking portion is provided 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 locking portion is configured to initialize according to the tension. The locking section is provided so that the amount of rocking from the state is large, and the acquisition section may acquire the amount of rocking of the locking section 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 rocking from the initial state increases depending on the tension.

In the synthetic yarn splicing system according to one aspect of the present invention, the locking portion may be provided so as to be movable over a wider range than the first predetermined range. With this configuration, even if a tension greater than the first predetermined range acts on the locking portion, it is possible to swing in accordance with the tension. Thereby, even if a tension greater than the first predetermined range is unintentionally applied to the locking portion, the tension is relaxed, and damage to the synthetic fiber yarn or breakage is reduced.

In the synthetic yarn splicing system according to one aspect of the present invention, the locking portion includes a first locking portion that locks the synthetic yarn wound around one yarn supply package, and a first locking portion that locks the synthetic fiber yarn wound around one yarn supply package. It may have a second locking part that locks the spun synthetic fiber yarn. With this configuration, it is possible to appropriately adjust the tension of both the synthetic fiber yarn drawn out from one yarn feeding package and the synthetic fiber yarn drawn out from the other yarn feeding package.

In one aspect of the present invention, the yarn end of the yarn supply package can be pulled out and guided to the yarn splicing device while maintaining the tension acting on the synthetic yarn within a certain range.

FIG. 1 is a diagram showing the configuration of a false twisting system according to an embodiment. FIG. 2 is a perspective view showing the package holding section of the first conveyance device. FIG. 3 is a perspective view of the yarn supply package with the adapter attached. FIG. 4 is a perspective view showing the package holding section of the second conveyance device. FIG. 5 is a perspective view showing the creel stand. FIG. 6 is a perspective view of the peg. FIG. 7 is a perspective view of the package exchange device. FIGS. 8(a) and 8(b) are perspective views showing the holding unit. FIG. 9 is a diagram showing the configuration 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 yarn splicing device. FIG. 13 is a perspective view showing the yarn splicing device. FIG. 14 is a perspective view showing the yarn splicing device. FIG. 15 is a perspective view showing the yarn splicing device and the catching and guiding 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 the functional configuration of the yarn splicing device. FIG. 18 is a perspective view showing the yarn splicing device and the catching and guiding mechanism. FIGS. 19(a) and 19(b) are perspective views showing the second guide mechanism locked to the thread. FIG. 20 is a perspective view showing the yarn splicing device and the catching and guiding mechanism. FIG. 21 is a perspective view showing the yarn splicing device and the catching and guiding 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 given the same reference numerals, and redundant description will be omitted.

As shown in FIG. 1, the false twisting system 1 includes a false twisting machine (textile machine) 2, a first conveying device 3, a second conveying device 4, a yarn feeding unit 5, and a package supply device 6. and a package exchange device (synthetic yarn splicing system) 7. The false twisting system 1 includes a control device (not shown) that centrally controls the false twisting machine 2, the first conveyance device 3, the second conveyance device 4, the package supply device 6, and the package exchange device 7. . In the false twisting system 1 according to the present embodiment, a plurality of false twisting machines 2, a first conveyance device 3, a second conveyance device 4, a yarn feeding unit 5, a package supply device 6, and a plurality of package exchange devices 7 are provided. ing. In the following explanation, the "Z direction" shown in the figures is the vertical direction (up and 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 twisting system 1 processes the yarn Y (see FIG. 3) supplied from a plurality of yarn supply packages P1 (see FIG. 2) to produce a winding package P2 (see FIG. 4). The yarn Y is, for example, a synthetic yarn made of thermoplastic synthetic fibers such as polyester and polyamide. The yarn supply package P1 is formed by winding partially oriented yarn (POY) around a yarn supply bobbin B1 (see FIG. 2). The winding package P2 is formed by winding a drawn textured yarn (DTY) around a winding bobbin B2 (see FIG. 4).

The false twisting machine 2 processes the yarn Y to form a wound package P2. The false twisting machine 2 has a main machine stand (processing device) 2a and two winding tables 2b. The main machine stand 2a is provided with a twisting device, feed rollers, and the like. The winding table 2b is provided with a winding device, a doffing device, and the like. The main engine stand 2a extends along the X direction. The take-up stand 2b extends along the X direction. The winding stand 2b is arranged at a position facing the main engine stand 2a in the Y direction (the 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 between them.

The false twisting machine 2 performs a false twisting process on the yarn Y supplied from the plurality of yarn supply packages P1, and winds the processed yarn onto a winding bobbin B2 to form a winding package P2 (see FIG. 4). . The false twisting machine 2 supplies the formed winding package P2 to the second conveying device 4.

The first conveyance device 3 conveys the yarn supply package P1. The first transport device 3 travels along, for example, a 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 winding table 2b and the yarn feeding unit 5. The first conveyance device 3 conveys the yarn supply package P1 between a supply location where the yarn supply package P1 is supplied and a predetermined package replenishment device 6. As shown in FIG. 2, the first conveyance device 3 has a first package holding section 3a. The first package holding section 3a is suspended from the first rail R1. The first package holding section 3a holds a plurality (for example, 12) of yarn feeding packages P1. The first package holding section 3a supports the yarn supply package P1 by a support member (not shown) inserted into the yarn supply bobbin B1 of the yarn supply package P1.

As shown in FIG. 3, an adapter 10 is attached to the yarn supply package P1. The adapter 10 holds the thread Y. The adapter 10 has a mounting part 11, a first holding part 12, and a second holding part 13. The attachment part 11 is attached to the yarn feeding bobbin B1 of the yarn feeding package P1 so as to be able to rotate synchronously. The attachment portion 11 has a cylindrical shape. The attachment part 11 is attached to the end of the yarn supply bobbin B1 protruding from the side surface of the yarn supply package P1.

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

The second holding section 13 holds the second yarn end Y2 of the yarn Y on the inner layer side (tail side) of the yarn supply package P1. The second holding part 13 is provided on the attachment part 11. The second holding section 13 includes a second arm 13a, a second gripper 13b, and a second thread guide 13c. The second arm 13a has its base end fixed to the side surface of the attachment portion 11, and extends along the radial direction of the attachment portion 11. The second arm 13a is arranged so as to be located in the same straight line as the first arm 12a. The second gripping tool 13b grips the second yarn end Y2. The second gripper 13b is provided on the tip side of the second arm 13a. The second thread guide 13c is provided on the second arm 13a.

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

As shown in FIG. 4, the second transport device 4 transports the winding package P2. The second transport device 4 travels along the first rail R1. The second transport device 4 transports the wound package P2 between a predetermined false twisting machine 2 and a storage facility (not shown) for the wound package P2. The second transport device 4 has a second package holding section 4a. The second package holding section 4a is suspended from the first rail R1. A plurality of (for example, 16) winding packages P2 are each held via a second package holding section 4a. Specifically, the winding package P2 is held by having both ends of each winding bobbin B2 supported 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 winding 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 supply 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 includes a creel base 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-like frame body. The four first columns 22a to 22d are erected on the creel base portion 21. The four first pillars 22a to 22d extend along the Z direction. Each of the four first pillars 22a to 22d is arranged at a predetermined interval in the X direction, and is also arranged at a predetermined interval in the Y direction. The partition plate 23 is provided on the first pillars 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 supply package P1 from falling.

The peg 24 supports the yarn supply package P1. The pegs 24 are provided on the first supports 22a, 22b. A plurality of pegs 24 (for example, eight) are arranged at predetermined intervals in the Z direction of the first support columns 22a and 22b. The peg 24 is arranged between the pair of partition plates 23. The peg 24 provided on the first support column 22a and the peg 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 22a is also referred to as a "first peg 24a", and the peg 24 provided on the first support 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 yarn Y of the yarn supply package P1 supported by the first peg 24a and the yarn Y of the yarn supply package P1 supported by the second peg 24b are connected. 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 supplying package P1 supported by the first peg 24a and the second yarn end Y2 supported by the second peg 24b. 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 yarn Y is supplied from the yarn supply package P1 supported by a pair of first pegs 24a and second pegs 24b.

As shown in FIG. 6, the peg 24 includes a yarn supply package support section 25 and a peg body section 26. The yarn feeding package support section 25 supports the yarn feeding package P1. The yarn feeding package support section 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 along one direction, are parallel to each other, and are arranged at a predetermined interval. The peg 24 supports the yarn feeding package P1 at two points by package support members 25a and 25b.

A covering portion 25d is provided at one end of the package support member 25a in the extending direction. A covering portion 25e is provided at one end of the package support member 25b in the extending direction. The covering portions 25d and 25e are made of, for example, rubber (resin) having a large coefficient of friction. The covering portions 25d and 25e contact (abut) the inner circumferential surface of the yarn feeding 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 connection member 25f.

The rotation mechanism 25c includes a driven pulley 25g, a drive 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 stretched around a driven pulley 25g and a driving pulley 25h. The first wheel 25j is provided on the drive pulley 25h (package support member 25b). In this embodiment, the first wheel 25j is a Geneva wheel that constitutes a Geneva mechanism. The first wheel 25j is rotated by rotation of a first yarn splicing driver 62a or a second yarn splicing driver 63a of a yarn splicing device 60, which will be described later. In the yarn feeding package support section 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 portion 26 includes a peg body 26a and a rotation transmission member 26b. The peg main body 26a is a member having a rectangular parallelepiped shape. The peg main body 26a supports the package support member 25a and the package support member 25b of the yarn supply package support section 25 so as to be rotatable around their rotation axis. A regulating member 26c is provided on the peg body 26a. The regulating member 26c has, for example, a disk shape. The regulating member 26c is arranged on one side of the peg body 26a. The regulating member 26c is attached by inserting the package supporting member 25a and the package supporting member 25b. The regulating member 26c faces the end surface of the yarn supply package P1, and restricts the movement of the yarn supply package P1 in the extending direction of the package support member 25a and the package support member 25b. An insertion hole 26d is formed in the peg body 26a. The first support 22a or the first support 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 through the rotation transmission member 26b. A second wheel 26e is provided at the lower end of the rotation transmission member 26b. In this embodiment, the second wheel 26e is a Geneva wheel that constitutes a Geneva mechanism. The second wheel 26e is rotated by driving a first rotation driver 36a or a second rotation driver 37a of a rotation device 35, which will be described later. The peg main body 26 rotates as the second wheel 26e rotates. As a result, the yarn supplying package support section 25 rotates. The peg 24 rotates between an exchange position where the yarn supply bobbin B1 is collected and a yarn supply package P1 is attached, and a supply position where the yarn Y is supplied.

As shown in FIG. 1, the package supply device 6 supplies the yarn supply package P1 to the package exchange device 7. The package supply device 6 temporarily stores the yarn supply package P1 conveyed by the first conveyance device 3, and supplies the yarn supply package P1 to the package exchange device 7. The package supply device 6 stores a plurality (for example, four) of yarn supply packages P1. The package supply device 6 has a transfer mechanism (not shown) that transfers the yarn supply package P1 from the first conveyance device 3.

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

The package exchange device 7 includes a traveling cart (traveling unit) 30, a lifting unit 31, a holding unit (holding device) 32, and a replacement unit 33. The package exchange device 7 also includes a control section (not shown) that controls the operation of each unit.

The traveling truck 30 has a traveling base portion 30a and a column support portion 30b. The traveling base portion 30a has a rectangular parallelepiped shape. The traveling base portion 30a accommodates wheels, a drive mechanism, etc. that travel on the second rail R2.

The column support section 30b is erected on the traveling base section 30a. The column support portion 30b includes four second columns 30c, 30d, 30e, and 30f, and a wall portion 30g. The second support columns 30c to 30f and the wall portion 30g extend along the Z direction. The second support column 30c is disposed at one end in the X direction and at one end in the Y direction in the traveling base portion 30a. The second support column 30c is arranged at a corner of the traveling base section 30a. The second support column 30d is disposed at one end in the X direction and at the other end in the Y direction of the traveling base portion 30a. The second support column 30c and the second support column 30d are arranged at opposite positions 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, with a predetermined distance therebetween. The second support 30f is arranged at the other end of the travel base 30a in the Y direction between the second support 30c and the second support 30e in the X direction. The second support column 30f is arranged to face the second support column 30d in the X direction. The wall portion 30g extends along the X direction. The wall portion 30g is located at the other end in the X direction and at the other end in the Y direction of the traveling base portion 30a. That is, the wall portion 30g is arranged at a corner of the traveling base portion 30a. The wall portion 30g is arranged to face the second support 30e in the Y direction and to face the second support 30f in the X direction.

The lifting unit 31 lifts and lowers with a worker on board. The lifting unit 31 is used for maintenance and the like. The elevating unit 31 is disposed at the other end in the X direction of the traveling base portion 30a of the traveling trolley 30. The elevating unit 31 includes 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 column support portion 30b of the traveling truck 30. The guide portion 31a extends along the Z direction. The elevating section 31b is a work platform on which a worker rides. The elevating portion 31b has a box shape. The elevating section 31b is provided so as to be movable up and down in the Z direction along the guide section 31a. The elevating part 31b moves along the guide part 31a by a drive mechanism (not shown).

The holding unit 32 holds a plurality (for example, four) of 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 yarn supply package P1 from the package supply device 6, temporarily stores the yarn supply package P1, and supplies the yarn supply package P1 to the exchange unit 33.

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

The package support section 32b supports the yarn supply package P1. The package support section 32b is rotatably provided. The package support portion 32b rotates within a range of approximately 90°. The package support section 32b has a replenishment position (see FIG. 8(b)) where the yarn feeding package P1 is supplied from the package replenishing device 6 and a supply position (see FIG. 8(a)) where the yarn feeding package P1 is supplied to the exchange unit 33. (see). The drive section 32c rotates the package support section 32b. The drive unit 32c is, for example, an air cylinder.

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

The base 34 supports a rotation device 35, a recovery device 40, a supply device 50, and a yarn splicing device 60. The base 34 is provided so as to be movable up and down along the column support section 30b of the traveling carriage 30. The base 34 is provided at a position where the holding unit 32 is accessible.

The rotation device 35 rotates the peg 24 of the creel stand 20. The rotation device 35 is fixed to the base 34. The rotation device 35 is arranged on the base 34 at a position facing the yarn feeding unit 5. The rotation device 35 includes 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 includes 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 a Geneva mechanism. The first rotary driver 36a is rotated by rotation 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 includes 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 a Geneva mechanism. The second rotation driver 37a is rotated by a rotational 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).

The rotation device 35 rotates the peg 24 to change the orientation of the peg 24 when attaching the yarn supply package P1 to the peg 24. The rotation device 35 operates the first drive mechanism 36 or the second drive mechanism 37 corresponding to the target peg 24. For example, when operating the first drive mechanism 36, the rotation device 35 swings the first rotation arm portion 36b to engage the first rotation driver 36a with the second wheel 26e of the first peg 24a. let The rotation device 35 rotates the first rotation driver 36a in one direction when the first rotation driver 36a and the second wheel 26e are engaged. When the second wheel 26e rotates, the rotation transmission member 26b of the peg 24 rotates. As a result, the peg 24 rotates, and the tips of the package support members 25a and 25b face the exchange unit 33 side.

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

The first slide portion 41a has a first linear guide 41c. A portion 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 supply 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 section 42b, a first elevating section 42c, and a second recovery drive section 42d. The first slide rail 42a is connected to the first slide portion 41a. The first slide rail 42a reciprocates a portion of the first slide section 41a by driving the first collection drive section 42b. The first collection drive unit 42b is, for example, an air cylinder. The first elevating section 42c is connected to the first sliding section 41a. The first elevating section 42c moves the first slide section 41a up and down by driving the second recovery drive section 42d. As a result, the first slide portion 41a swings. The second collection drive unit 42d is, for example, a motor.

The collection operation of the yarn feeding bobbin B1 by the collection device 40 will be described. The recovery device 40 causes the first recovery drive mechanism 42 to advance 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, and removes the first package support member. 41b is located in the hollow part of the yarn feeding bobbin B1. At this time, the recovery device 40 causes the first recovery drive mechanism 42 to swing the first slide portion 41a of the first support mechanism 41 downward, thereby tilting the first package support member 41b with respect to 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, thereby removing the first package support member 41b. Make it horizontal. As a result, the first package support member 41b and the yarn feeding bobbin B1 come into contact and the yarn feeding bobbin B1 is lifted, and at the same time, the yarn feeding bobbin B1 and the package supporting members 25a and 25b are separated. The recovery device 40 causes the first recovery drive mechanism 42 to partially retract the first slide portion 41a of the first support mechanism 41. As described above, the recovery device 40 recovers the yarn feeding bobbin B1 from the peg 24.

The supply device 50 supplies the yarn supply 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 supply package P1. Furthermore, the second support mechanism 51 supplies the yarn supply package P1 by moving forward and backward with respect to the peg 24. The second support mechanism 51 includes a second slide portion 51a and a second package support member 51b.

The second slide portion 51a has a second linear guide 51c. A portion of the second sliding 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 second sliding portion 51a that moves. 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 section 52b, a second elevating section 52c, and a second supply drive section 52d. The second slide rail 52a is connected to the second slide portion 51a. The second slide rail 52a reciprocates a portion of the second slide section 51a by driving the first supply drive section 52b. The first supply drive unit 52b is, for example, an air cylinder. The second elevating section 52c is connected to the second sliding section 51a. The second elevating section 52c moves the second slide section 51a up and down by driving the second supply drive section 52d. This causes the second slide portion 51a to swing. The second supply drive section 52d is, for example, a motor.

An acquisition operation in which the supply device 50 acquires the yarn supply package P1 from the holding unit 32 will be described. The supply device 50 acquires the yarn supply package P1 from the holding unit 32 while the package exchange device 7 is moving. When the replacement unit 33 stops at a predetermined height position with respect to the holding unit 32, the feeding device 50 moves the second feeding drive mechanism to the yarn feeding package P1 supported by the package support portion 32b of the holding unit 32. 52, a part of the second slide portion 51a of the second support mechanism 51 is advanced to position the second package support member 51b in the hollow portion of the yarn supply package P1. At this time, the supply device 50 causes the second supply drive mechanism 52 to swing the second slide portion 51a of the second support mechanism 51 downward, thereby tilting the second package support member 51b with respect to the horizontal direction. . When the second package support member 51b is located in the hollow part of the yarn supplying package P1, the supply device 50 causes the second supply drive mechanism 52 to swing the second slide portion 51a upward, thereby moving the second package support member 51b. Make it horizontal. As a result, the second package support member 51b and the yarn supplying package P1 come into contact and the yarn supplying package P1 is lifted, and at the same time, the yarn supplying package P1 and the package support section 32b are separated. The supply device 50 causes the second supply drive mechanism 52 to partially retract the second slide portion 51a of the second support mechanism 51. As described above, the supply device 50 acquires the yarn supply package P1 from the holding unit 32.

A supply operation in which the supply device 50 supplies the yarn supply package P1 to the peg 24 will be described. The supply device 50 causes the second supply drive mechanism 52 to advance a part of the second slide portion 51a of the second support mechanism 51 toward the peg 24 from which the yarn supply bobbin B1 has been removed, so as to release the yarn supply package P1. 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 supply package P1, the supply device 50 causes the second supply drive mechanism 52 to swing the second sliding portion 51a downward to support the second package. The member 51b is tilted with respect to the horizontal direction. As a result, the package support members 25a and 25b of the peg 24 and the yarn supply package P1 come into contact, and the yarn supply package P1 is supported by the peg 24, and the second package support member 51b and the yarn supply package P1 are separated. . The supply device 50 causes the second supply drive mechanism 52 to partially retract the second slide portion 51a of the second support mechanism 51. As described above, the supply device 50 attaches the yarn supply package P1 to the peg 24.

The yarn splicing device 60 splices the yarn Y of the yarn supply package P1 supported by the first peg 24a and the yarn Y of the yarn supply package P1 supported by the second peg 24b. As shown in FIGS. 12, 13, and 14, the yarn splicing device 60 includes a catching and guiding mechanism (guiding section) 61, a first rotating mechanism (operating mechanism) 62, and a second rotating mechanism (operating mechanism) 63. , and a thread splicing mechanism 64.

The yarn splicing device 60 is provided movably by a moving mechanism (not shown) in the direction in which the exchange unit 33 and the yarn feeding unit 5 face each other (Y direction). The yarn splicing device 60 has two positions: a standby position where the yarn splicing device 60 is placed inside the base 34 and a yarn splicing position where the yarn splicing device 60 moves toward the yarn feeding unit 5 and advances outside the base 34. and move between.

The capturing and guiding mechanism 61 captures the yarn Y of the yarn supply package P1 and guides the yarn Y to the yarn splicing mechanism 64. The catching guide mechanism 61 captures the first yarn end Y1 of the yarn Y of the yarn supply package P1 supported by one peg 24 and the second yarn end Y1 of the yarn Y of the yarn supply package P1 supported by the other peg 24. The end Y2 is captured and guided to the yarn splicing mechanism 64. The catching guide mechanism 61 includes a suction section 61a and a yarn splicing arm section 61b.

The suction section 61a suctions and captures the thread 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 tip of the suction pipe 61c. The suction nozzle 61d sucks the yarn 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 yarn splicing 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 yarn Y entangled by the yarn splicing device 60. The yarn splicing arm section 61b moves the suction section 61a. The yarn splicing arm 61b includes a link mechanism and a plurality of motors. The yarn splicing arm portion 61b is supported by a bracket 61f.

The first rotation mechanism 62 and the second rotation mechanism 63 each operate the peg 24 to rotate the yarn supply package P1. The first rotation mechanism 62 and the second rotation mechanism 63 each rotate the yarn supply package P1 and pay out the yarn Y from the yarn supply package P1 when the capture guide mechanism 61 guides the yarn Y to the yarn splicing mechanism 64. let Note that the rotational direction of the yarn supply package P1 referred to here includes not only the direction in which the yarn Y is paid out from the yarn supply packages P1, P1 (the unwinding direction), but also the direction in which the yarn Y is rewound into the yarn supply packages P1, P1 (the unwinding direction). Direction) is also included.

The first rotation mechanism 62 operates the first peg 24a. The first rotation mechanism 62 includes a first yarn splicing driver 62a, a first motor 62b, and a first yarn splicing arm portion 62c. The first yarn splicing driver 62a is rotatably supported by the first yarn splicing arm 62c. The first yarn splicing driver 62a is provided with a first driven pulley 62d. The first motor 62b is fixed to the first yarn splicing arm 62c. A first drive pulley 62e is connected to the output shaft of the first motor 62b. The first motor 62b rotates the first drive pulley 62e around the axis. A first power transmission belt 62f is stretched around the first driven pulley 62d and the first driving pulley 62e. Thereby, the first yarn splicing 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 yarn splicing driver 63a, a second motor 63b, and a second yarn splicing arm portion 63c. The second yarn splicing driver 63a is rotatably supported by the second yarn splicing arm 63c. The second yarn splicing driver 63a is provided with a second driven pulley 63d. The second motor 63b is fixed to the second yarn splicing arm portion 63c. A second drive pulley 63e is connected to the output shaft of the second motor 63b. The second motor 63b rotates the second drive pulley 63e around the axis. A second power transmission belt 63f is stretched around the second driven pulley 63d and the second drive pulley 63e. Thereby, the second thread splicing 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 explained in more detail later.

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

The splicer 66 includes a yarn splicing section 66a and a pair of clamping mechanisms 66b and 66c. The yarn splicing section 66a intertwines the yarn Y of the yarn supply package P1 supported by the first peg 24a and the yarn Y of the yarn supply package P1 supported by the second peg 24b. The clamping mechanisms 66b and 66c are provided at positions sandwiching the yarn splicing section 66a. The clamping mechanisms 66b and 66c clamp the yarn Y inserted into the chamber of the yarn splicing section 66a.

As shown in FIGS. 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/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 swingably provided. The first hook 67a is provided with a potentiometer (acquisition unit) 164 (see FIG. 16) for detecting the tension of the thread Y. The yarn 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 supply package P1 based on the detection result of the potentiometer 164, and draws out the yarn Y from the yarn supply package P1 with a predetermined tension.

The second guide mechanism 68 locks and guides the thread Y. The second guide mechanism 68 includes 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 swingably provided. A potentiometer 164 for detecting the tension of the thread Y is provided on the first hook 68a. The yarn 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 supply package P1 based on the detection result of the potentiometer 164, and draws out the yarn Y from the yarn supply package P1 with a predetermined tension.

The yarn splicing operation of the yarn splicing device 60 will be explained. Specifically, the yarn splicing device 60 connects the first yarn end Y1 on the outer layer side of the yarn supply package P1 supported by the first peg 24a and the inner layer of the yarn supply package P1 supported by the second peg 24b. An example of a case where the yarn is spliced with the second yarn end Y2 on the side will be described.

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

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

The yarn splicing device 60 uses the suction portion 61a to hang the yarn Y having the first yarn end Y1 on the first guide mechanism 67, guide the yarn Y to the splicer 66, and connect the yarn Y having the second yarn end Y2 to the second guide mechanism 67. The thread Y is hung on the guide mechanism 68 and guided to the splicer 66. The yarn splicing device 60 guides the yarn Y to the splicer 66 and causes the splicer 66 to perform a yarn splicing operation. As a result, the yarn splicing device 60 connects the first yarn end Y1 on the outer layer side of the yarn supply package P1 supported by the first peg 24a and the inner layer side of the yarn supply package P1 supported on the second peg 24b. A yarn splice is performed with the second yarn end Y2.

The moving device 70 rotationally moves the collection device 40, the supply device 50, and the yarn splicing device 60. The moving device 70 moves each of the collecting device 40, the feeding device 50, and the yarn splicing device 60 to a working position relative to the peg 24. Furthermore, the moving device 70 moves the collection device 40 and the supply device 50 to a working position relative to the holding unit 32. As shown in FIG. 9, the moving device 70 includes a rotation support section 71 and a replacement unit drive section 72.

The rotation support section 71 supports the collection device 40, the supply device 50, and the yarn splicing device 60. The rotation support portion 71 is provided on the base 34 so as to be rotatable around a rotation axis extending in the vertical direction. The rotation support section 71 is arranged such that the recovery device 40, the supply device 50, and the yarn splicing device 60 are arranged facing three different directions when viewed from the direction of the rotation axis of the rotation support section 71. It supports the device 50 and the yarn splicing device 60.

The rotation support part 71 has a wheel (not shown). The wheel is a Geneva wheel that constitutes a Geneva mechanism. The replacement unit drive section 72 rotates the rotation support section 71. The exchange unit drive section 72 is a Geneva driver that constitutes a Geneva mechanism. The replacement unit drive section 72 is rotated by rotational drive of a motor (not shown). In the moving device 70, the rotation support section 71 is rotated by being driven by the exchange unit drive section 72.

The moving device 70 stops the rotation support section 71 at seven locations. 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 24b. 24a, the position where the supply device 50 supplies the yarn supply package P1 to the second peg 24b, the position where the yarn splicing device 60 performs yarn splicing, and the position where the supply device 50 supplies the yarn supply package P1 to the second peg 24b. The rotation support part 71 is stopped at a position where the yarn supply package P1 is acquired from the yarn supply package P1 and at a position where the collection device 40 supplies the yarn supply bobbin B1 to the holding unit 32.

The entire false twisting system 1 has been described above, and the package exchange 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 explained in more detail. Although 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 orientations, their configurations are different. are the same. Therefore, as shown in FIG. 16, only the second hook 68b will be described in detail, and the remaining first hooks 67a, second hooks 67b, third hooks 67c, first hooks 68a, and third hooks will be described in detail. A detailed explanation of 68c will be omitted. Further, in the following description, it will be assumed that 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. 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 an insertion groove 65b formed in a flat base plate 65a that is a part of the base 65. As shown in FIG. As shown in FIG. 16, the second hook 68b has a base end 68ba located below the base flat plate 65a as a swing axis, and a tip end 68bb located above the base flat plate 65a swings. It is set up to do so. The base end portion 68ba is fixed to a rotary guide 162 that is rotatably provided about a rotating shaft 161a that is fixed to a part of the base 65. Therefore, when the thread Y is locked to the second hook 68b and stress is applied to the second hook 68b, the second hook 68b swings together with the rotary guide 162. The stress exerted by the yarn Y on the second hook 68b is proportional to the tension acting on the yarn 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 rocking (movement) from the initial state increases according to the stress, and the rotary guide 162 acts on the second hook 68b. If the stress is less than a predetermined value, it is biased to return to its initial state. In this embodiment, the rotary guide 162 is connected to a 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 a predetermined value, the amount of rocking (movement amount) of the second hook 68b from the initial state increases in accordance with the stress, and the stress acting on the second hook 68b increases. When becomes below a predetermined value, the initial state is restored.

One end of the rotary guide 162 in the axial direction is connected to a potentiometer 164. The potentiometer 164 obtains the amount of rotation of the rotary guide 162 with respect to the base flat 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, thereby releasing the thread Y held in the second hook 68b. Rotary solenoid 165 is controlled by control section 90 .

Next, the control unit 90 (see FIGS. 7 and 17), which is one of the characteristic parts of one aspect of the present invention, will be described in more detail. The control unit 90 is an electronic control unit that includes 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. Programs for controlling each part are recorded in the ROM. Further, each function of the drive control section 90a and the determination section 90b, which will be described in detail later, is executed under the control of the CPU by loading predetermined computer software onto hardware such as the CPU and main storage section. Ru.

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 amount of rocking acquired by the potentiometer 164 falls within a first predetermined range, and thereby controls the supply. The amount of yarn Y let out from each of the yarn packages P1, P1 is controlled. Note that each of the first hook 67a, second hook 67b, third hook 67c, first hook 68a, second hook 68b, and third hook 68c is provided movably wider than the first predetermined range. . The determination unit 90b determines whether or not the yarn splicing device 60 is rotated based on the amount of rotation (the amount of rocking of the first hook 67a and the first hook 68a) acquired by the potentiometer 164 when the catching guide mechanism 61 is moved to the inspection position P61. Determine whether or not the thread splicing is successful.

Next, the yarn end Y1 on the outer layer side of the yarn supplying package P1 supported by the first peg 24a and the yarn end Y1 of the yarn supplying package P1 supported by the second peg 24b, which is one of the features of one aspect of the present invention, will be described. In order to cause the yarn splicing device 60 to splice the yarn ends Y2 on the inner layer side of the package P1, the control when guiding the yarn ends Y1 and Y2 to the yarn splicing mechanism 64 by the catching guide mechanism 61 will be described.

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

Here, control when the capture guide mechanism 61 pulls out the yarn Y from the yarn supply package P1 supported by the second peg 24b will be described. When the yarn end Y2 captured by the suction nozzle 61d is moved toward the first peg 24a while the yarn Y is locked to the first hook 68a and the second hook 68b, tension is generated in the yarn Y, and as shown in FIG. As shown in b), 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. 19(b) according to the tension generated in the thread Y.

The control unit 90 controls the second rotation mechanism 63 based on the amount of rotation of the rotary guide 162 obtained by the potentiometer 164, and rotates the yarn supply 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 amount of swing of the first hook 68a and the second hook 68b falls within a first predetermined range, so that the yarn Y unreeled from the yarn supply package P1 Controls the amount of feed. Note that, here, the second rotation mechanism 63 is controlled so that the amount of swing of at least one of the first hook 68a and the second hook 68b falls within the first predetermined range, so that the yarn Y unreeled from the yarn supply package P1 is controlled. The amount may be controlled.

In this embodiment, the amount of swing of the first hook 68a and the second hook 68b is obtained by the potentiometer 164 as the amount of rotation of the rotary guide 162. Therefore, the control unit 90 controls the second rotation mechanism 63 so that the amount of rotation acquired by the potentiometer 164 falls within a second predetermined range corresponding to the first predetermined range, so that the yarn is paid out from the yarn supply package P1. Controls the amount of Y payout.

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

Next, the capture guide mechanism 61 moves the yarn splicing arm 61b to move the suction nozzle 61d that has captured the yarn end Y2 to the yarn feeding package P1 supported by the first peg 24a, and the suction nozzle 61d moves the suction nozzle 61d that has captured the yarn end Y2 to Capture Y1. Next, as shown in FIG. 20, the yarn splicing device 60 moves the yarn splicing arm 61b while capturing the yarn ends Y1 and Y2, and connects the yarn supply package P1 supported by the first peg 24a. After the yarn Y is locked to the first hook 67a and the second hook 67b, the suction nozzle 61d is moved in the direction of the yarn splicing mechanism 64. As a result, the yarn Y is now pulled out from the yarn supply package P1 supported by the first peg 24a. Note that the yarn Y continues to be pulled out from the yarn supply package P1 supported by the second peg 24b.

Here, an example has been given in which the yarn Y is caught by the first hook 68a and the second hook 68b, and then the yarn end Y2 is captured while the yarn end Y1 is captured. After maintaining the tension of the thread Y held by the hook 68a and the second hook 68b by an appropriate method, the thread end Y1 is released, and then only the thread end Y2 is captured by the suction nozzle 61d, and the thread Y may be locked to the first hook 67a and the second hook 67b. That is, the yarn Y of the yarn supply package P1 supported by the second peg 24b and the yarn Y of the yarn supply package P1 supported by the first peg 24a are separately pulled out, and the yarn Y of the yarn supply package P1 supported by the second peg 24b is pulled out. After the yarn Y of the package P1 is locked to the first hook 68a and the second hook 68b, the yarn Y of the yarn feeding package P1 supported by the first peg 24a is locked to the first hook 67a and the second hook 67b. It's okay.

Here, control when the capture guide mechanism 61 pulls out the yarn Y from the yarn supply package P1 supported by the first peg 24a will be described. When the yarn end Y1 captured by the suction nozzle 61d is moved toward the yarn splicing 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 the first hook 67a and the second hook 67b as stress. Thereby, the first hook 67a and the second hook 67b swing according to the tension generated in the yarn Y.

The control unit 90 controls the first rotation mechanism 62 based on the amount of rotation of the rotary guide 162 obtained by the potentiometer 164, and rotates the yarn supply 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 amount of swing of the first hook 67a and the second hook 67b falls within a first predetermined range, so that the yarn Y paid out from the yarn supply package P1 Controls the amount of feed. Note that, here, the first rotation mechanism 62 is controlled so that the amount of swing of at least one of the first hook 67a and the second hook 67b falls within a first predetermined range, so that the yarn Y that is unwound from the yarn feeding package P1 is unwound. The amount may be controlled.

In this embodiment, as described above, the amount of swing of the first hook 67a and the second hook 67b is acquired by the potentiometer 164 as the amount of rotation of the rotary guide 162. Therefore, the control unit 90 controls the first rotation mechanism 62 so that the amount of rotation acquired by the potentiometer 164 falls within a second predetermined range corresponding to the first predetermined range, and the yarn fed from the yarn supply package P1. Controls the amount of Y payout.

For example, if the amount of rotation obtained by the potentiometer 164 exceeds the second predetermined range, the first motor 62b is controlled to rotate the yarn supply package P1 supported by the first peg 24a in the feeding direction. . As a result, the yarn Y is let out from the yarn supply package P1, so that the tension generated in the yarn Y is alleviated. Note that while the control unit 90 is controlling the first rotation mechanism 62, the above-described control of the first rotation mechanism 62 is continued.

As described above, the yarn splicing device 60 controls the second peg 24b by the second rotation mechanism 63 when the catching guide mechanism 61 pulls out the yarn Y from the yarn supply package P1 supported by the second peg 24b. to rotate the yarn feeding package P1 in the feeding direction. Thereby, the tension of the yarn Y when the yarn Y is paid out from the yarn supply package P1 can be maintained within a predetermined range. Similarly, when the yarn splicing device 60 pulls out the yarn Y from the yarn supply package P1 supported by the first peg 24a by the catching guide mechanism 61, the first rotation mechanism 62 controls the first peg 24a to feed the yarn. The package P1 is rotated in the feeding direction. Thereby, the tension of the yarn Y when the yarn Y is paid out from the yarn supply package P1 can be maintained within a predetermined range.

Next, the yarn end Y1 on the outer layer side of the yarn supply package P1 supported by the first peg 24a and the yarn end Y1 supported by the second peg 24b by the yarn splicing device 60, which is one of the features of one aspect of the present invention, is A determination method for determining whether or not the yarn end Y1 and the yarn end Y2 are appropriately spliced (entangled) will be explained after splicing with the yarn end Y2 on the inner layer side of the yarn supply package P1 that has been spliced. .

The yarn intertwined (spliced) by the yarn splicing device 60 (hereinafter, the yarn end Y2 of the yarn Y of the yarn supplying package P1 supported by the second peg 24b, which has been intertwined by the yarn splicing device 60, and the first peg The yarn in which the yarn end Y1 of the yarn Y of the yarn supplying package P1 supported by the yarn feeding package P1 supported by the yarn supplying package P1 is called "continuous yarn (continuous synthetic yarn Y0") is connected to the first hooks 67a, 68a and the first hook 67a, 68a. It is locked by two hooks 67b and 68b. The yarn splicing device 60 operates the rotary solenoid 165 provided on the second hooks 67b, 68b to release the continuous yarn Y0 from the second hooks 67b, 68b. As a result, the continuous yarn Y0 is locked only to the first hooks 67a and 68a.

Next, as shown in FIG. 21, the yarn splicing device 60 moves the yarn 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 yarn 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 catching part of the continuous yarn Y0 and the catching part by the first hook 67a (which may be the first hook 68a). The continuous yarn Y0 is captured so that the intertwined portion YC with the YC is located.

Next, the yarn splicing device 60 moves the hook portion 61e upward to a predetermined inspection position P61 while the continuous yarn Y0 is captured by the hook portion 61e. Due to such an operation of the capture guide mechanism 61, a predetermined tension is generated in the continuous yarn Y0. The control unit 90 acquires the amount of rocking that occurs in the first hook 67a and the first hook 68a at this time, that is, the amount of rotation of the rotary guides 162, 162 acquired by the respective potentiometers 164, 164. Note that the control unit 90 may acquire the amount of rocking that occurs 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 portion 90 determines whether the yarn end Y1 or It is determined whether or not the yarn splicing with the yarn end Y2 is successful. In other words, the control unit 90 determines whether the intertwined portion YC is good or bad. For example, if the amount of rotation obtained by the potentiometers 164, 164 provided on the first hook 67a and the first hook 68a when the hook portion 61e is moved to the inspection position P61 is greater than or equal to a predetermined value, the control section 90 controls the control section 90. That is, when a predetermined tension is generated in the continuous yarn Y0, it is determined that the splicing of the yarn ends Y1 and Y2 has been successful.

On the other hand, if the amount of rotation obtained by the potentiometers 164, 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 cases where the tension is 0), that is, when the predetermined tension is not generated in the continuous yarn Y0, the intertwined portion YC may be incomplete (unraveled when pulled) or the yarn end Y1 and the yarn Considering that the ends Y2 are not completely connected, it is determined that the splicing of the yarn ends Y1 and Y2 has failed.

The control unit 90 is, for example, a general control device that collectively controls the false twisting system 1 including the false twisting machine 2, the first conveyance device 3, the second conveyance device 4, the package supply device 6, and the package exchange device 7. (Not shown) Alternatively, the determination result may be transmitted to a terminal device carried by a worker or the like. Further, the overall control device that has received the determination result may display the determination result on a display device or the like provided in the overall control device. Further, the transmission of the determination result to the mobile terminal may be performed by the overall control device.

In the package changing device 7 described in the above embodiment, the yarn supply package P1 can be rotated in the feeding direction, so that the tension generated in the yarn Y when the yarn Y is pulled out from the yarn supply package P1 by the catching guide mechanism 61 is alleviated. can do. Furthermore, in the package changing device 7, the tension generated when guiding the yarn ends Y1 and Y2 of the yarn supply package P1 to the yarn splicing device 60 is acquired by the first hooks 67a, 68a and the second hooks 67b, 68b. , the amount of delivery of the yarn feeding package P1 is controlled according to the obtained tension. Thereby, the yarn ends Y1 and Y2 of the yarn supply package P1 can be pulled out and guided to the yarn splicing device 60 while maintaining the tension acting on the yarn Y within a certain range.

The package exchange device 7 of the above embodiment includes a yarn splicing device 60 that connects the yarn ends Y1 and Y2 of the yarn supply package P1, and a yarn splicing device 60 that guides the yarn ends Y1 and Y2 of the yarn supply package P1 to the yarn splicing device 60. A supply device 50 that supplies the yarn supply package P1 to the creel stand 20, and a recovery device 40 that collects the yarn supply bobbin B1 from the creel stand 20. Therefore, it becomes possible to perform the work of replacing the yarn supply package P1 and the work of joining the yarn by the package changing device 7 without human intervention.

In the package exchange device 7 of the above embodiment, the first hooks 67a, 68a and the second hooks 67b, 68b are provided so as to be swingable with respect to the base flat plate 65a, and the tension acting on the yarn Y is greater than a predetermined value. In this case, the amount of rocking from the initial state increases depending on 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 depending on the tension.

In the package exchange device 7 of the embodiment described above, the first hooks 67a, 68a and the second hooks 67b, 68b are provided so as to be movable over a wider range than the first predetermined range described above. Therefore, even if a tension larger than the first predetermined range acts on the first hooks 67a, 68a and the second hooks 67b, 68b, 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 first hooks 67a, 68a and the second hooks 67b, 68b, the tension is relaxed and the thread Y is not damaged or cut. This reduces the possibility of

In the package exchange device 7 of the above embodiment, the first hook 68a and the second hook 68b that lock the yarn end Y2 pulled out from the yarn supply package P1 supported by the second peg 24b, and the first hook 68a and the second hook 68b supported by the first peg 24a. The first hook 67a and the second hook 67b are respectively provided to lock the yarn end Y1 pulled out from the yarn supply package P1. Thereby, the tension of both the yarn Y pulled out from the yarn supply package P1 supported by the second peg 24b and the yarn Y pulled out from the yarn supply package P1 supported by the first peg 24a can be adjusted appropriately. .

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

In the package exchange device 7 of the above embodiment, the first hook 68a and the second hook 68b that lock the yarn end Y2 pulled out from the yarn supply package P1 supported by the second peg 24b, and the first hook 68a and the second hook 68b supported by the first peg 24a. The explanation has been given using an example in which the first hook 67a and the second hook 67b, which lock the yarn end Y1 pulled out from the yarn feeding package P1, are arranged so as to sandwich the yarn splicing mechanism 64. One aspect of the invention is not limited thereto. The positions of these hooks (locking parts) do not matter as long as they are along the route taken by the catching guide mechanism 61 to guide the yarn to the yarn splicing device 60. Further, the number of hooks is not limited to those described in the above embodiments, and may be arranged as appropriate.

In the package exchange device 7 of the above embodiment, one catching guide mechanism 61 is configured to collect the yarn end Y2 pulled out from the yarn supply package P1 supported by the second peg 24b and the yarn end Y2 pulled out from the yarn supply package P1 supported by the first peg 24a. Although an example has been described in which both of the pulled-out yarn ends Y1 are captured and guided to the yarn splicing device 60, one aspect of the present invention is not limited to this. For example, the package exchange device 7 includes a catching guide mechanism that captures the yarn end Y2 pulled out from the yarn supply package P1 supported by the second peg 24b, and a catching guide mechanism that captures the yarn end Y2 pulled out from the yarn supply package P1 supported by the first peg 24a. A configuration may also be adopted in which a capture guide mechanism that captures the yarn end Y1 is provided.

In the package exchange device 7 of the above embodiment, an example has been described in which the continuous yarn Y0 is captured by the hook portion 61e when guided to the inspection position P61, but for example, the continuous yarn Y0 is captured by the suction nozzle 61d. Good too.

In the above embodiment, the traveling unit 30 is described as having wheels as an example of a traveling unit, but the traveling unit may have a linear motion mechanism instead of the wheels.

7... Package exchange device (yarn splicing system for synthetic yarns), 20... Creel stand, 30... Traveling cart (traveling unit), 40... Collection device, 50... Supply device, 60... Yarn splicing device, 61... Capture guide mechanism ( 61d...Suction nozzle, 61e...Hook part, 64...Yarn splicing mechanism, 65...Base, 67a...First hook (locking part/second locking part), 67b...Second hook (locking part) 68a...first hook (locking part/first locking part), 68b...second hook (locking part/first locking part), 90...control unit, 90a... Drive control section, 90b... Judgment section, 162... Rotary guide, 164... Potentiometer (acquisition section), 165... Rotary solenoid, B1... Yarn feeding bobbin, P1... Yarn feeding package, P61... Inspection position, Y0... Continuous yarn (continuous Synthetic fiber yarn), Y1... Yarn end (first yarn end), Y2... Yarn end (second yarn end), YC... Intertwined portion.

Claims (5)

a creel stand in which a yarn supply package in which a synthetic yarn made of synthetic fibers is wound around a bobbin is supported by a yarn supply package support part; a processing device that processes the synthetic yarn supplied from the yarn supply package; a winding device that winds up the processed synthetic yarn to form a winding package; a set of two of the yarn feeding packages supported by the yarn feeding package support section, which is used in a textile machine; A yarn splicing system for synthetic fiber yarns that pulls out yarn ends from each of the yarn ends and splices the yarn ends, the system comprising:
a yarn joining part that intertwines a first yarn end that is a yarn end of one of the yarn supply packages and a second yarn end that is a yarn end of the other yarn supply package;
a guide section that guides the first yarn end and the second yarn end to the yarn splicing section;
A locking portion where the synthetic fiber yarn is locked when the guide portion guides the first yarn end and the second yarn end to the yarn splicing portion, and the tension acting on the synthetic fiber yarn is a predetermined value. When the tension becomes larger, the amount of movement from the initial state increases according to the tension, and when the tension acting on the synthetic yarn is less than the predetermined value, it is biased to return to the initial state. The locking portion that is
an operating mechanism that drives the yarn supply package support section that rotatably supports the yarn supply package in the feeding direction in the creel stand;
a traveling unit that moves a base supporting the yarn splicing section, the guide section, the locking section, and the operating mechanism along the creel stand;
an acquisition unit that acquires the amount of movement of the locking part with respect to the base;
a drive control unit that controls the operating mechanism so that the movable amount falls within a first predetermined range, and controls the amount of the synthetic yarn that is fed out from the yarn supply package. . a recovery device that recovers the bobbin supported by the yarn supply package support section;
further comprising a supplying device that attaches the yarn supply package to the yarn supply package support section,
The synthetic yarn splicing system according to claim 1, wherein the recovery device and the supply device are supported on the base. The locking portion is provided to be swingable with respect to the base, and is provided so that when the tension acting on the synthetic fiber yarn becomes larger than a predetermined value, the amount of swing from the initial state increases in accordance with the tension. and
The synthetic yarn splicing system according to claim 1 or 2, wherein the acquisition section acquires the amount of swing of the locking section with respect to the base. The yarn splicing system for synthetic fiber yarns according to any one of claims 1 to 3, wherein the locking portion is provided so as to be movable over a wider range than the first predetermined range. The locking portion includes a first locking portion that locks the synthetic yarn wound around one of the yarn supply packages, and a first locking portion that locks the synthetic yarn wound around the other yarn supply package. The yarn splicing system for synthetic fiber yarns according to any one of claims 1 to 4, comprising: two locking portions.

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