CN117775891A - Joint device and joint method - Google Patents

Abstract

The present invention relates to a splicing device and a splicing method, which inhibit the generation of a fiber portion when splicing wires. The yarn splicing device (6) includes a yarn splicing unit (61) having a slit (61 a), a 1 st clamp cutter (64) for cutting and holding a yarn (Y (Y1)), and a 2 nd clamp cutter (65) for cutting and holding a yarn (Y (Y2)). The 1 st clamp cutter (64) is switchable between an open state in which the 1 st cutting portion (64 a) and the 1 st holding portion (64 b) are opened so as to sandwich an extension line of the slit (61 a) in the longitudinal direction of the machine body, and a closed state in which the 1 st cutting portion and the 1 st holding portion are closed. The 2 nd clamp cutter (65) can be switched between an open state in which the 2 nd cutting part (65 a) and the 2 nd holding part (65 b) are opened so as to sandwich the extension line of the slit in the machine body length direction and a closed state in which the 2 nd cutting part and the 2 nd holding part are closed.

Description

Joint device and joint method

Technical Field

The present invention relates to a joining device and a joining method for joining two wires.

Background

A splicing device (splicer) for splicing the ends of two wound threads to each other is known. For example, patent document 1 discloses a joint device (a coupling device of patent document 1) including: a cross-over unit having an air nozzle; a pair of thread gripping units (grippers of patent document 1) arranged on both sides of the winding unit and gripping the thread; and a cutting unit arranged between the winding unit and the thread holding unit.

The yarn splicing device of patent document 1 applies a yarn splicing operation by injecting compressed air from an air nozzle to two yarns held by a pair of yarn holding units, thereby joining the two yarns. The portion of the two filaments that protrudes from the intersection portion to which the intersection is applied is referred to as a fiber portion. The fiber portion of such a yarn is, for example, a cause of uneven dyeing when it is formed into a woven or knitted fabric, and therefore, needs to be removed before proceeding to the next step and cut by a cutting means.

Patent document 1: japanese patent laid-open No. 2000-16704

However, in the splice device disclosed in patent document 1, since the distance between the winding unit and the cutting unit is long, there is a possibility that the fiber portion between the winding unit and the cutting unit remains even after cutting by the cutting unit. The remaining fiber portion has been conventionally handled by cutting the fiber portion by a manual operation by an operator. However, the cutting by the operator by manual work is not only troublesome, but also may damage the portion of the yarn other than the fiber portion.

It is also conceivable that the operator adjusts the wire insertion length to the interlacing unit so as not to generate the fiber portion, but the wire insertion condition is affected by the skill of the operator, and the fiber portion is often left.

Disclosure of Invention

The purpose of the present invention is to suppress the generation of a fiber portion when joining wires.

The joint device of the present invention comprises: a interlacing unit having a slit extending in a predetermined direction, and interlacing two wires passing through the slit; a 1 st thread cutting and holding unit arranged on one side of the winding unit in the predetermined direction for cutting and holding the thread; and a 2 nd thread cutting and holding unit which is arranged at the other side of the winding unit in the predetermined direction and cuts and holds the thread, wherein the 1 st thread cutting and holding unit comprises: a 1 st cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and a 1 st grip portion provided between the 1 st cutting portion and the intersecting unit and having two grip members capable of opening and closing each other, the 1 st thread cutting grip unit being capable of switching between an open state in which the 1 st cutting portion and the 1 st grip portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 1 st cutting portion and the 1 st grip portion are closed, the 2 nd thread cutting grip unit comprising: a 2 nd cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and a 2 nd holding portion provided between the 2 nd cutting portion and the intersecting unit, the 2 nd holding portion including two holding members capable of opening and closing each other, the two holding members holding the thread therebetween, the 2 nd thread cutting holding unit being switchable between an open state in which the 2 nd cutting portion and the 2 nd holding portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 2 nd cutting portion and the 2 nd holding portion are closed.

In such a yarn splicing device, the portion of one yarn extending to one side of the yarn splicing unit is cut and gripped by the 1 st yarn cutting and gripping unit, and the portion of the other yarn extending to the other side of the yarn splicing unit is cut and gripped by the 2 nd yarn cutting and gripping unit. Then, the interlacing unit performs interlacing on the two wires cut by the wire cutting holding unit. Accordingly, the closer the 1 st wire cutting holding unit and the 2 nd wire cutting holding unit are to the interlacing unit, the shorter the distance between the portion cut by each wire cutting holding unit and the interlacing unit in the two wires is, the smaller the fiber portion can be reduced. Here, the positional relationship between the 1 st thread cutting unit grip and the 2 nd thread cutting unit grip and the interlacing unit may be any positional relationship as long as two threads can pass through the 1 st thread cutting unit grip, the 2 nd thread cutting unit grip and the interlacing unit. However, when the 1 st cutting portion and the 1 st gripping portion and the 2 nd cutting portion and the 2 nd gripping portion in the open state are not arranged so as to sandwich the extended line of the slit, that is, when the 1 st cutting portion and the 1 st gripping portion and the 2 nd cutting portion and the 2 nd gripping portion in the open state are located at positions deviated from the extended line of the slit in the predetermined direction, it is necessary to bend the wires extending from the slit to both sides and bring the wires between the cutting portions and the gripping portions located at positions deviated from the extended line of the slit. Therefore, when the distance between the threading unit and each thread cutting holding unit is shortened, the thread needs to be bent greatly on both sides of the slit in order to pass the thread between each cutting portion and each holding portion, and it is difficult to insert the thread into the slit. Therefore, there is also a limit in approaching the interlacing unit to the thread cutting holding unit. According to the present invention, the 1 st cutting portion and the 1 st holding portion and the 2 nd cutting portion and the 2 nd holding portion are opened so as to sandwich the extension line of the slit in the predetermined direction. Therefore, the thread inserted into the slit can be easily passed through the slit, the cutting portions, and the holding portions by simply extending the thread along the extension line of the slit. Thus, even if the thread cutting holding units are brought close to the interlacing unit, the thread placement into the slit and the thread cutting holding units is not hindered. Therefore, each wire cutting holding unit can be brought as close as possible to the interlacing unit, and the occurrence of a fiber portion at the time of joining the wires can be suppressed.

In the yarn splicing device according to the present invention, it is preferable that the 1 st cutting portion and the 1 st gripping portion are located at positions offset from the extension line of the slit in the predetermined direction when the 1 st yarn cutting gripping unit is in the closed state, and the 2 nd cutting portion and the 2 nd gripping portion are located at positions offset from the extension line of the slit in the predetermined direction when the 2 nd yarn cutting gripping unit is in the closed state.

When joining two wires, the following sequence is sometimes used: after one wire is put into the slit and cut and gripped by the 1 st wire cutting and gripping unit, the other wire is put into the slit and cut and gripped by the 2 nd wire cutting and gripping unit. In this case, when one thread is put into the slit, it is necessary to set the 1 st thread cutting and holding means to an open state and the 2 nd thread cutting and holding means to a closed state. This is to enable one wire to be cut by the 1 st cutting portion and to be gripped by the 1 st gripping portion, and to be not cut by the 2 nd cutting portion and to be not gripped by the 2 nd gripping portion. Conversely, when another thread is placed in the slit, the 2 nd thread cutting and holding unit needs to be opened, and the 1 st thread cutting and holding unit needs to be closed. This is to enable the other wire to be cut by the 2 nd cutting portion and held by the 2 nd holding portion, and to be not cut by the 1 st cutting portion and held by the 1 st holding portion. According to the present invention, the 1 st cutting portion and the 1 st gripping portion when the 1 st thread cutting gripping unit is in the closed state, and the 2 nd cutting portion and the 2 nd gripping portion when the 2 nd thread cutting gripping unit is in the closed state are located at positions deviated from the extension line of the slit in the predetermined direction. Therefore, when one thread is put into the slit, the 2 nd cutting part and the 2 nd holding part in the closed state do not interfere with the thread putting. Similarly, when another thread is put into the slit, the 1 st cutting part and the 1 st holding part in the closed state do not interfere with the thread. This makes it possible to easily insert a wire into the slit.

The joint device of the present invention preferably further comprises: a 1 st thread holding unit which is arranged on one side of the 1 st thread cutting holding unit in the predetermined direction and holds the thread; a second thread holding unit that is disposed on the other side of the second thread cutting holding unit in the predetermined direction and holds a thread; a 1 st moving mechanism configured to move the 1 st thread gripping unit and to extend and relax the thread gripped by the 1 st thread gripping unit and the 2 nd thread cutting gripping unit; and a 2 nd moving mechanism configured to move the 2 nd thread gripping unit, and to extend and relax the thread gripped by the 2 nd thread gripping unit and the 1 st thread cutting gripping unit.

According to the present invention, the yarn can be stretched and relaxed, whereby bulkiness of the yarn can be reduced and the yarn can be properly unwound. Thus, the two wires are liable to be entangled.

In the yarn splicing device according to the present invention, it is preferable that the yarn splicing device further includes a control device for controlling the yarn splicing unit, the 1 st moving mechanism, and the 2 nd moving mechanism, wherein the control device controls the 1 st moving mechanism so as to extend and relax the yarn held by the 1 st yarn holding unit and the 2 nd yarn cutting holding unit before the yarn is spliced by the yarn splicing unit, and controls the 2 nd moving mechanism so as to extend and relax the yarn held by the 2 nd yarn holding unit and the 1 st yarn cutting holding unit before the yarn is spliced by the yarn splicing unit.

According to the present invention, by elongating and relaxing the filaments before applying interlacing to the two filaments, the bulkiness of the filaments can be reduced and the filaments can be properly unwound. This makes it possible to more reliably and easily cause the two filaments to cross each other.

In the yarn splicing device according to the present invention, it is preferable that the yarn splicing device further includes a control device that controls switching of states of the yarn splicing means, the 1 st yarn cutting and holding means, and the 2 nd yarn cutting and holding means, and that the control device controls the yarn splicing means so as to apply yarn splicing to the two yarns passing through the slit after the holding of the yarn is released by switching the 1 st yarn cutting and holding means to the open state and after the holding of the yarn is released by switching the 2 nd yarn cutting and holding means to the open state.

According to the present invention, when the interlacing unit performs interlacing on two threads, the thread cutting holding unit releases the holding of the threads. Therefore, the yarn located between the winding unit and each yarn cutting holding unit is pulled into the slit by the yarn operation when the winding is applied. This can further suppress the occurrence of the fiber portion.

The joint device of the present invention preferably includes: a 1 st robot arm having a 1 st thread holding portion for holding one of the two threads, the 1 st robot arm being configured to pass the one thread held by the 1 st thread holding portion through the slit; a 2 nd robot arm having a 2 nd wire holding portion for holding the other wire of the two wires, the 2 nd robot arm being configured to pass the other wire held by the 2 nd wire holding portion through the slit; and a control device that controls switching of states of the 1 st thread cutting and gripping means and the 2 nd thread cutting and gripping means, and the 1 st robot arm and the 2 nd robot arm, wherein the control device controls the 1 st robot arm so that the one thread passes through the slit, between the two blades of the 1 st thread cutting and gripping means in the open state, and between the two gripping members, and controls the 2 nd robot arm so that the other thread passes through the slit, between the two blades of the 2 nd thread cutting and gripping means in the open state, and between the two gripping members.

According to the present invention, in the configuration in which the wire is passed through the slit by the robot arm, each cutting portion and each holding portion are opened so as to sandwich the extension line of the slit. Therefore, when the wire is passed through the slit, the wire held by the robot arm may be moved so as to extend along the extension line of the slit, that is, may be moved along a straight line. Thus, no complex control of the robotic arm is required when passing the wire through the slit.

In the joint device of the present invention, the control device preferably performs: a 1 st robot arm control for controlling the 1 st robot arm so that the 2 nd thread cutting and holding means is in the closed state, and so that the one thread passes through the slit, between the two blades of the 1 st thread cutting and holding means in the open state, and between the two holding members; a thread cutting and holding control for switching the 1 st thread cutting and holding means to the closed state after the 1 st robot arm control, thereby cutting and holding the one thread; and a 2 nd robot arm control for switching the 2 nd wire cutting and holding means to the open state after the wire cutting and holding control, and for controlling the 2 nd robot arm so that the other wire passes through the slit, between the two blades of the 2 nd wire cutting and holding means in the open state, and between the two holding members, wherein when the 2 nd wire cutting and holding means is switched from the closed state to the open state, the 2 nd cutting portion and the 2 nd holding portion are configured to push the one wire held by the 1 st wire cutting and holding means to a position deviated from an extension line of the slit in the predetermined direction.

When one wire is put into the slit and cut and held by the 1 st wire cutting and holding means and then the other wire is put into the slit and cut and held by the 2 nd wire cutting and holding means, the one wire put into the slit first may interfere with the wire put into the slit. According to the present invention, the 2 nd thread cutting and holding means is switched from the closed state to the open state before the other thread is placed in the slit, whereby the 2 nd cutting portion and the 2 nd holding portion press the one thread which is placed in the slit first and held by the 1 st thread cutting and holding means to a position deviated from the extension line of the slit in the predetermined direction. Therefore, when another thread is put into the slit, the one thread gripped by the 1 st thread cutting gripping means does not become an obstacle. This makes it possible to more easily insert the thread into the slit.

The jointing method according to the present invention is a jointing method for jointing two wires by a jointing device, the jointing device comprising: a interlacing unit having a slit extending in a predetermined direction, and interlacing two wires passing through the slit; a 1 st thread cutting and holding unit arranged on one side of the winding unit in the predetermined direction for cutting and holding the thread; and a 2 nd thread cutting and holding unit which is arranged at the other side of the winding unit in the predetermined direction and cuts and holds the thread, wherein the 1 st thread cutting and holding unit comprises: a 1 st cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and a 1 st grip portion provided between the 1 st cutting portion and the intersecting unit and having two grip members capable of opening and closing each other, the 1 st thread cutting grip unit being capable of switching between an open state in which the 1 st cutting portion and the 1 st grip portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 1 st cutting portion and the 1 st grip portion are closed, the 2 nd thread cutting grip unit comprising: a 2 nd cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and a 2 nd grip portion disposed between the 2 nd cutting portion and the intersecting unit, the 2 nd grip portion having two grip members capable of opening and closing each other, the 2 nd wire cutting grip unit being capable of switching between an open state in which the 2 nd cutting portion and the 2 nd grip portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 2 nd cutting portion and the 2 nd grip portion are closed, the 1 st cutting portion and the 1 st grip portion being located at positions deviated from an extension line of the slit in the predetermined direction when the 1 st wire cutting grip unit is in the closed state, the 2 nd grip portion and the 2 nd grip portion being located at positions deviated from the extension line of the slit in the predetermined direction when the 2 nd wire cutting grip unit is in the closed state, the 2 nd grip portion being located at positions deviated from the extension line of the slit in the predetermined direction, the 2 nd grip portion being pushed from the 2 nd grip portion to the predetermined direction when the 2 nd grip unit is switched from the closed state, the method being performed to push the 2 nd grip portion from the open state to the predetermined direction, and the method being performed to the 2 nd grip portion is provided to the slit from the open state in the predetermined direction. A 1 st thread inserting step of setting the 1 st thread cutting and holding means to the open state and setting the 2 nd thread cutting and holding means to the closed state, and passing the one thread from the other side in the predetermined direction toward the one side through the slit, between the two blades of the 1 st thread cutting and holding means, and between the two holding members; a 1 st thread cutting and holding step of switching the 1 st thread cutting and holding means from the open state to the closed state to thereby cut and hold the one thread; a 2 nd thread inserting step of switching the 2 nd thread cutting and holding means from the closed state to the open state, and passing the other thread from the one side to the other side in the predetermined direction through the slit, between the two blades of the 2 nd thread cutting and holding means, and between the two holding members; a 2 nd thread cutting and holding step of switching the 2 nd thread cutting and holding means from the open state to the closed state to cut and hold the other thread; and a interlacing application step of interlacing the two threads passing through the slit by the interlacing unit after releasing the grip of the one thread by switching the 1 st thread cutting grip unit from the closed state to the open state and releasing the grip of the other thread by switching the 2 nd thread cutting grip unit from the closed state to the open state.

In such a yarn splicing device, the portion of one yarn extending to one side of the yarn splicing unit is cut and gripped by the 1 st yarn cutting and gripping unit, and the portion of the other yarn extending to the other side of the yarn splicing unit is cut and gripped by the 2 nd yarn cutting and gripping unit. Then, the interlacing unit performs interlacing on the two wires cut by the wire cutting holding unit. Accordingly, the closer the 1 st wire cutting holding unit and the 2 nd wire cutting holding unit are to the interlacing unit, the shorter the distance between the portion cut by each wire cutting holding unit and the interlacing unit in the two wires is, the smaller the fiber portion can be reduced. Here, the positional relationship between the 1 st thread cutting unit grip and the 2 nd thread cutting unit grip and the interlacing unit may be any positional relationship as long as two threads can pass through the 1 st thread cutting unit grip, the 2 nd thread cutting unit grip and the interlacing unit. However, when the 1 st cutting portion and the 1 st gripping portion and the 2 nd cutting portion and the 2 nd gripping portion in the open state are not arranged so as to sandwich the extended line of the slit, that is, when the 1 st cutting portion and the 1 st gripping portion and the 2 nd cutting portion and the 2 nd gripping portion in the open state are located at positions deviated from the extended line of the slit in the predetermined direction, it is necessary to bend the wires extending from the slit to both sides and bring the wires between the cutting portions and the gripping portions located at positions deviated from the extended line of the slit. Therefore, when the distance between the threading unit and each thread cutting holding unit is shortened, the thread needs to be bent largely on both sides of the slit in order to pass the thread between each cutting portion and each holding portion, and it is difficult to insert the thread into the slit. Therefore, there is also a limit in approaching the interlacing unit to the thread cutting holding unit. According to the present invention, the 1 st cutting portion and the 1 st holding portion and the 2 nd cutting portion and the 2 nd holding portion are opened so as to sandwich the extension line of the slit in the predetermined direction. Therefore, the thread inserted into the slit can be easily passed through the slit, the cutting portions, and the holding portions by simply extending the thread along the extension line of the slit. Thus, even if the thread cutting holding units are brought close to the interlacing unit, the thread placement into the slit and the thread cutting holding units is not hindered. Therefore, each wire cutting holding unit can be brought as close as possible to the interlacing unit, and the occurrence of a fiber portion at the time of joining the wires can be suppressed.

In the joint method of the present invention, the following effects can be obtained. Specifically, the following procedure may be adopted in joining two wires: after one wire is put into the slit and cut and gripped by the 1 st wire cutting and gripping unit, the other wire is put into the slit and cut and gripped by the 2 nd wire cutting and gripping unit. In this case, when one thread is put into the slit, it is necessary to set the 1 st thread cutting and holding means to an open state and the 2 nd thread cutting and holding means to a closed state. This is to enable one wire to be cut by the 1 st cutting portion and held by the 1 st holding portion, and to be not cut by the 2 nd cutting portion and held by the 2 nd holding portion. Conversely, when another thread is placed in the slit, the 2 nd thread cutting and holding unit needs to be opened, and the 1 st thread cutting and holding unit needs to be closed. This is to enable the other wire to be cut by the 2 nd cutting portion and held by the 2 nd holding portion, and to be not cut by the 1 st cutting portion and held by the 1 st holding portion. According to the yarn splicing method of the present invention, the 1 st cutting portion and the 1 st gripping portion when the 1 st yarn cutting and gripping unit is in the closed state, and the 2 nd cutting portion and the 2 nd gripping portion when the 2 nd yarn cutting and gripping unit is in the closed state are located at positions deviated from the extension line of the slit in the predetermined direction. Therefore, when one thread is put into the slit, the 2 nd cutting part and the 2 nd holding part in the closed state do not interfere with the thread putting. Similarly, when another thread is put into the slit, the 1 st cutting part and the 1 st holding part in the closed state do not interfere with the thread. This makes it possible to easily insert a wire into the slit.

In the joint method of the present invention, the following effects can be obtained. Specifically, when one wire is placed in the slit and cut and held by the 1 st wire cutting and holding means, and then the other wire is placed in the slit and cut and held by the 2 nd wire cutting and holding means, the wire placed in the slit first may be prevented from being placed in the slit. According to the yarn splicing method of the present invention, the 2 nd yarn cutting and holding means is switched from the closed state to the open state before the other yarn is placed in the slit, whereby the 2 nd cutting portion and the 2 nd holding portion push the one yarn which is placed in the slit first and held by the 1 st yarn cutting and holding means to a position deviated from the extension line of the slit in the predetermined direction. Therefore, when another thread is put into the slit, the one thread gripped by the 1 st thread cutting gripping means does not become an obstacle. This makes it possible to more easily insert the thread into the slit.

Further, according to the yarn splicing method of the present invention, when the yarn splicing is performed on the two yarns by the yarn splicing unit, the yarn cutting holding unit releases the holding of the yarn. Therefore, the yarn located between the winding unit and each yarn cutting holding unit is pulled into the slit by the yarn operation when the winding is applied. This can further suppress the occurrence of the fiber portion.

Drawings

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

Fig. 2 is a front view of the creel shown in fig. 1.

Fig. 3 is a side view showing the joint device.

Fig. 4 is a top view of the connector device shown in fig. 3.

Fig. 5 is a diagram showing a sequence of the splicing operation performed by the splicing device, and is a diagram showing a state in which the yarn of one yarn-feeding package is passed through the slit.

Fig. 6 is a diagram showing a sequence of the splicing operation performed by the splicing device, and shows a state in which the yarn of one yarn-feeding package is cut and held by the 1 st clamp cutter.

Fig. 7 is a diagram showing a sequence of the splicing operation performed by the splicing device, and shows a state when the 2 nd clamp cutter is switched from the closed state to the open state.

Fig. 8 is a diagram showing a sequence of the splicing operation performed by the splicing device, and is a diagram showing a state in which the yarn of the other yarn-feeding package is passed through the slit.

Fig. 9 is a diagram showing a sequence of the splicing operation performed by the splicing device, and shows a state in which the yarn of the other yarn feeding package is cut and held by the 2 nd clamp cutter.

Fig. 10 is a diagram showing a sequence of the splicing operation performed by the splicing device, and shows a state in which one yarn of the yarn feeding package is gripped by the 1 st grip cutter and the 2 nd gripper, and the other yarn of the yarn feeding package is gripped by the 2 nd grip cutter and the 1 st gripper.

Fig. 11 is a diagram showing a sequence of a splicing operation performed by the splicing device, and is a diagram showing a state in which a splicing unit starts to apply a splicing operation to two filaments.

Fig. 12 is a diagram showing a sequence of a splicing operation performed by the splicing device, and a diagram showing a state in which a splicing process is performed to two wires by a splicing unit.

Fig. 13 is a diagram showing a sequence of the splicing operation according to the modification, and is a diagram showing a state in which two wires are passed through the slit.

Description of symbols

1: a false twist processing machine; 6: a joint device; 25: robot arm (1 st robot arm, 2 nd robot arm); 60: a splicer; 61: a cross linking unit; 61a: a slit; 62: 1 st gripper (1 st thread holding unit); 63: a2 nd gripper (2 nd thread holding unit); 64: a1 st clamp cutter (1 st thread cutting holding unit); 64a: a1 st cutting part; 64a1: a fixed blade (blade); 64a2: a movable blade (blade); 64b: a1 st grip portion; 64b1: fixing a holding member (holding member); 64b2: a movable grip member (grip member); 65: a2 nd clamp cutter (2 nd thread cutting holding unit); 65a: a2 nd cutting part; 65a1: a fixed blade (blade); 65a2: a movable blade (blade); 65b: a2 nd holding part; 65b1: fixing a holding member (holding member); 65b2: a movable grip member (grip member); 69: a control device; 70: a yarn processing device (1 st yarn holding section and 2 nd yarn holding section); 90: cam mechanism (1 st moving mechanism, 2 nd moving mechanism); ps: feeding silk package; y: a silk thread; y1: a silk thread; y2: a silk thread.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the splicing device 6 is applied to the false twisting machine 1 for splicing two wires of two yarn-feeding packages Ps.

(false twisting machine 1)

First, a schematic configuration of the false twist machine 1 will be described with reference to fig. 1. Hereinafter, the vertical direction of the paper surface in fig. 1 is referred to as the vertical direction, and the horizontal direction of the paper surface is referred to as the machine body width direction. The vertical direction is the vertical direction in which gravity acts. The direction perpendicular to the paper surface in fig. 1 is referred to as the machine body width direction. Hereinafter, the above directional terms will be appropriately used for explanation.

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

The yarn feeding section 2 has a creel 5 for holding a plurality of yarn feeding packages Ps, and supplies a plurality of yarns Y to the processing section 3. The processing unit 3 is configured such that a 1 st godet 11, a stop yarn guide 12, a 1 st heating device 13, a cooling device 14, a false twisting device 15, a 2 nd godet 16, a interlacing device 17, a 3 rd godet 18, a 2 nd heating device 19, and a 4 th godet 20 are arranged in this order from the upstream side in the yarn advancing direction. The winding unit 4 winds the yarn Y false twisted by the processing unit 3 around the bobbin Bw by the winding device 21 to form a winding package Pw.

The yarn Y fed from the yarn feeding section 2 to the processing section 3 is drawn between the 1 st yarn feeding roller 11 and the 2 nd yarn feeding roller 16 and twisted by the yarn adding device 15. The twist formed by the twisting device 15 propagates to the anti-twist yarn guide 12, but does not propagate upstream of the anti-twist yarn guide 12 in the yarn advancing direction. The yarn Y twisted while being stretched in this way is heated by the 1 st heating device 13, and then cooled by the cooling device 14 to be heat-set. The yarn Y passing through the twisting device 15 is untwisted before reaching the 2 nd godet 16. However, since the twist of the yarn Y is heat-set as described above, each yarn maintains a wavy false twist state. Thereafter, the yarn Y, which is subjected to interlacing by the interlacing device 17 and heat-set by the 2 nd heating device 19, is wound by the winding device 21.

As shown in fig. 1, the false twist machine 1 includes a main body 8 and a winding table 9 arranged at intervals in the machine body width direction. The main body 8 and the winding stand 9 are provided so as to extend substantially the same length in the longitudinal direction of the main body, and are disposed so as to face each other. The upper part of the main body 8 and the upper part of the winding stand 9 are connected by a support frame 10. The respective devices constituting the processing section 3 are mainly mounted on the main body 8 and the support frame 10. The winding device 21 constituting the winding unit 4 is attached to the winding stand 9.

The creel 5 is disposed on the opposite side of the main body 8 across the winding stand 9 in the body width direction. The creel 5 is disposed in a pair back to back in the body width direction. The creel 5 is arranged in plural in the longitudinal direction of the machine body. The arrangement length of the creel 5 in the machine body length direction is substantially the same as the lengths of the main body 8 and the winding stand 9 in the machine body length direction.

On the ground on both sides of the machine body in the width direction of the pair of creels 5 arranged back to back, rails R extending in the machine body length direction are laid, respectively. A traveling carriage (not shown) supporting a joint device 6 (see fig. 3 and 4) described later travels along the track R.

The false twist machine 1 is configured to be bilaterally symmetrical with respect to the machine body width direction about the main machine body 8. That is, the winding stand 9 and the creel 5 are disposed on both sides of the main body 8 in the body width direction. Fig. 1 omits the left winding stand 9 and the creel 5.

(creel)

The structure of the creel 5 will be described with reference to fig. 2. As shown in fig. 2, the creel 5 mainly includes a creel base 51, struts 52a and 52b, a plurality of partition plates 53, and a plurality of bolts 54. The creel base 51 is a frame-like frame body. The support posts 52a, 52b are vertically erected on the creel base 51. The struts 52a and 52b extend in the up-down direction. The struts 52a and 52b are disposed at predetermined intervals in the longitudinal direction of the machine body. The plurality of partition plates 53 are provided on the struts 52a, 52b. The plurality of partition plates 53 are arranged at predetermined intervals in the vertical direction of the struts 52a and 52b.

The pins 54 support the yarn supply packages Ps. The pins 54 are provided on the struts 52a and 52b, respectively. In the following description, the wire feed package Ps supported by the pin 54 provided to the stay 52a is sometimes referred to as "wire feed package Ps1", and the wire feed package Ps supported by the pin 54 provided to the stay 52b is sometimes referred to as "wire feed package Ps2".

A plurality (for example, 8) of pins 54 are arranged at predetermined intervals in the vertical direction of the struts 52a and 52b. The pins 54 are disposed between the pair of partition plates 53. The pins 54 provided to the support 52a are arranged at the same height as the pins 54 provided to the support 52b. That is, in the creel 5, the plurality of yarn feeding packages Ps are supported by the pins 54 in a matrix-like arrangement in the up-down direction and the longitudinal direction of the machine body.

In the two yarn-feeding packages Ps supported by two pins 54 arranged at the same height in the bobbin cradle 5, the yarn Y1 on the inner side of one yarn-feeding package Ps1 and the yarn Y2 on the outer side of the other yarn-feeding package Ps2 are connected by a splicing device 6 described later. Thus, in the creel 5, even if the yarn Y of one yarn supply package Ps is used up, the yarn Y can be supplied from the other yarn supply package Ps, and thus the yarn Y can be continuously supplied.

(Joint device 6)

Next, the joint device 6 will be described with reference to fig. 3 and 4. The joint device 6 is supported by the base 22. The base 22 is provided to be vertically movable along a column 23 provided vertically on a traveling carriage (not shown) traveling along a track R (see fig. 1). The splicing device 6 includes a splicer 60, a robot arm 25, and a control device 69.

The joint device 6 is movable to a position facing each of the plurality of creels 5 arranged in the longitudinal direction of the machine body by the traveling carriage traveling along the rail R. The joint device 6 is movable to a position facing each of the plurality of yarn-feeding packages Ps supported by the creel 5 by lifting and lowering the base 22 along the support posts 23.

The splicer 60 includes a splicing unit 61, a 1 st gripper 62 (1 st thread gripping unit of the present invention), a 2 nd gripper 63 (2 nd thread gripping unit of the present invention), a 1 st gripping cutter 64 (1 st thread cutting gripping unit of the present invention), a 2 nd gripping cutter 65 (2 nd thread cutting gripping unit of the present invention), two thread guides 66, 67, and a main body portion 68. The winding unit 61, the 1 st gripper 62, the 2 nd gripper 63, the 1 st gripping cutter 64, the 2 nd gripping cutter 65, and the two wire guides 66 and 67 are attached to the main body 68. The main body 68 is attached to the base 22.

As shown in fig. 3, the complexing unit 61 has a slit 61a, a nozzle (not shown), and a nozzle cover (not shown). The slit 61a penetrates in the longitudinal direction of the machine body, and the yarn Y can travel through the slit 61 a. The longitudinal direction of the machine body corresponds to the predetermined direction of the present invention. The nozzle is configured to be capable of injecting compressed air in the body width direction. The nozzle cover is a member covering the upper surface of the slit 61a, and is configured to be openable and closable. The nozzle cover is opened so as to open the upper surface of the slit 61a before the thread Y passes through the slit 61a, and is closed so as to cover the upper surface of the slit 61a after the thread Y passes through the slit 61 a. The interlacing unit 61 applies interlacing by injecting compressed air from a nozzle to two wires Y passing through the slit 61a, and performs splicing.

The 1 st gripper 62 grips the thread Y passing through the slit 61 a. The 1 st gripper 62 is disposed on one side of the intersection unit 61 in the longitudinal direction of the machine body. The 1 st holder 62 has a fixed portion 62a and a movable portion 62b. The fixed portion 62a and the movable portion 62b are arranged on a straight line along the body width direction. The movable portion 62b can be moved in the body width direction by an unillustrated cylinder, for example. The movable portion 62b can obtain a clamping position (see fig. 10 to 12) at which the wire Y can be clamped between the movable portion and the fixed portion 62a, and a release position (see fig. 4 to 9) that is farther from the fixed portion 62a than the clamping position. Further, a rotation shaft 62c along the up-down direction is formed at an end portion of the 1 st holder 62 on the side where the movable portion 62b is provided. The 1 st holder 62 can be rotated and moved by rotating about the rotation shaft 62c. The 1 st gripper 62 is restricted from rotating about the rotation shaft 62c when the movable portion 62b is in the release position, and is capable of rotating about the rotation shaft 62c when the movable portion 62b is in the gripping position. The rotational movement of the 1 st gripper 62 is driven by, for example, a cam mechanism 90. The cam mechanism 90 corresponds to the 1 st movement mechanism of the present invention.

The 2 nd gripper 63 grips the thread Y passing through the slit 61 a. The 2 nd gripper 63 is disposed on the other side of the winding unit 61 in the longitudinal direction of the machine body. The 2 nd gripper 63 has a fixed portion 63a and a movable portion 63b. The fixed portion 63a and the movable portion 63b are arranged on a straight line along the body width direction. The movable portion 63b can be moved in the body width direction by an unillustrated cylinder, for example. The movable portion 63b can obtain a clamping position (see fig. 10 to 12) at which the wire Y can be clamped between the movable portion and the fixed portion 63a, and a release position (see fig. 4 to 9) that is farther from the fixed portion 63a than the clamping position. Further, a rotation shaft 63c along the up-down direction is formed at an end portion of the 2 nd gripper 63 on the side where the movable portion 63b is provided. The 2 nd gripper 63 can rotate by rotating about the rotation shaft 63c. The 2 nd gripper 63 is restricted from rotating about the rotation shaft 63c when the movable portion 63b is in the release position, and is capable of rotating about the rotation shaft 63c when the movable portion 63b is in the gripping position. The rotational movement of the 2 nd gripper 63 is driven by, for example, a cam mechanism 90. The cam mechanism 90 corresponds to the 2 nd movement mechanism of the present invention. In the present embodiment, the 1 st moving mechanism and the 2 nd moving mechanism are a common cam mechanism 90.

The 1 st pinch cutter 64 cuts and holds one of the two wires Y passing through the slit 61 a. The 1 st clamp cutter 64 is disposed on one side of the winding unit 61 in the longitudinal direction of the machine body and is a position on the other side of the 1 st clamp 62. That is, the 1 st clamp cutter 64 is arranged between the complex unit 61 and the 1 st clamp 62 in the longitudinal direction of the machine body. As shown in fig. 4, the 1 st clamp cutter 64 includes a1 st cutting portion 64a having a fixed blade 64a1 and a movable blade 64a2, and a1 st grip portion 64b having a fixed grip member 64b1 and a movable grip member 64b 2. The fixed blade 64a1 and the movable blade 64a2 correspond to two blades of the present invention. The fixed grip member 64b1 and the movable grip member 64b2 correspond to two grip members of the present invention.

The fixed blade 64a1 and the movable blade 64a2 are arranged on a straight line along the body width direction. The fixed blade 64a1 and the movable blade 64a2 can be opened and closed. Specifically, the movable blade 64a2 can be moved in the machine body width direction by an unillustrated cylinder, for example. Thus, the fixed blade 64a1 and the movable blade 64a2 can take an open state (see fig. 4, 5, and 11) in which they are opened, and a closed state (see fig. 6 to 10, and 12) in which they are closed. The fixed blade 64a1 and the movable blade 64a2 are located at positions sandwiching the extended lines of the slits 61a in the longitudinal direction of the machine body in the opened state. The extended line of the slit 61a in the longitudinal direction of the body as referred to herein means a straight line extending along the longitudinal direction of the body through the center position of the slit 61a in the width direction of the body. In the closed state, the fixed blade 64a1 and the movable blade 64a2 cut the thread Y located between the fixed blade 64a1 and the movable blade 64a 2. The fixed blade 64a1 and the movable blade 64a2 are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body in the closed state.

The fixed grip member 64b1 and the movable grip member 64b2 are arranged on a straight line along the body width direction. The fixed grip member 64b1 and the movable grip member 64b2 are disposed on the other side of the fixed blade 64a1 and the movable blade 64a2 in the longitudinal direction of the machine body. In other words, the fixed grip member 64b1 and the movable grip member 64b2 are disposed between the complex unit 61 and the fixed blade 64a1 and the movable blade 64a2 in the longitudinal direction of the machine body. The fixed grip member 64b1 and the movable grip member 64b2 can be opened and closed with each other. Specifically, the movable grip member 64b2 is movable integrally with the movable blade 64a 2. Thus, the fixed grip member 64b1 and the movable grip member 64b2 can take an open state (see fig. 4, 5, and 11) in which they are opened, and a closed state (see fig. 6 to 10, and 12) in which they are closed. The fixed grip member 64b1 and the movable grip member 64b2 are positioned so as to sandwich the extension line of the slit 61a in the longitudinal direction of the machine body in the opened state. The fixed grip member 64b1 and the movable grip member 64b2 grip the thread Y located between the fixed grip member 64b1 and the movable grip member 64b2 in the closed state. The fixed grip member 64b1 and the movable grip member 64b2 are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body in the closed state.

The 2 nd clamp cutter 65 cuts and holds the other wire Y of the two wires Y passing through the slit 61 a. The 2 nd clamp cutter 65 is disposed at the other side of the winding unit 61 in the longitudinal direction of the machine body and is a position of one side of the 2 nd clamp 63. That is, the 2 nd clamp cutter 65 is arranged between the complex unit 61 and the 2 nd clamp 63 in the longitudinal direction of the machine body. As shown in fig. 4, the 2 nd clamp cutter 65 includes a2 nd cutting portion 65a having a fixed blade 65a1 and a movable blade 65a2, and a2 nd grip portion 65b having a fixed grip member 65b1 and a movable grip member 65b 2. The fixed blade 65a1 and the movable blade 65a2 correspond to two blades of the present invention. The fixed grip member 65b1 and the movable grip member 65b2 correspond to two grip members of the present invention.

The fixed blade 65a1 and the movable blade 65a2 are arranged on a straight line along the body width direction. The fixed blade 65a1 and the movable blade 65a2 can be opened and closed. Specifically, the movable blade 65a2 can be moved in the machine body width direction by an unillustrated cylinder, for example. As a result, the fixed blade 65a1 and the movable blade 65a2 can take an open state (see fig. 4, 7, 8, and 11) in which they are opened, and a closed state (see fig. 5, 6, 9, 10, and 12) in which they are closed. The fixed blade 65a1 and the movable blade 65a2 are located at positions sandwiching the extended lines of the slits 61a in the longitudinal direction of the machine body in the opened state. In the closed state, the fixed blade 65a1 and the movable blade 65a2 cut the thread Y located between the fixed blade 65a1 and the movable blade 65a 2. The fixed blade 65a1 and the movable blade 65a2 are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body in the closed state.

The fixed grip member 65b1 and the movable grip member 65b2 are arranged on a straight line along the body width direction. The fixed grip member 65b1 and the movable grip member 65b2 are disposed on the side of the fixed blade 65a1 and the movable blade 65a2 in the longitudinal direction of the machine body. In other words, the fixed grip member 65b1 and the movable grip member 65b2 are disposed between the complex unit 61 and the fixed blade 65a1 and the movable blade 65a2 in the longitudinal direction of the machine body. The fixed grip member 65b1 and the movable grip member 65b2 can be opened and closed with each other. Specifically, the movable grip member 65b2 is movable integrally with the movable blade 65a 2. As a result, the fixed grip member 65b1 and the movable grip member 65b2 can take an open state (see fig. 4, 7, 8, and 11) in which they are opened, and a closed state (see fig. 5, 6, 9, 10, and 12) in which they are closed. The fixed grip member 65b1 and the movable grip member 65b2 are positioned so as to sandwich the extension line of the slit 61a in the longitudinal direction of the machine body in the opened state. The fixed grip member 65b1 and the movable grip member 65b2 grip the thread Y located between the fixed grip member 65b1 and the movable grip member 65b2 in the closed state. The fixed grip member 65b1 and the movable grip member 65b2 are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body in the closed state.

The two yarn guides 66 and 67 guide the yarn Y captured by the yarn processing device 70 described later to the interlacing unit 61. As shown in fig. 3, the wire guide 67 is configured such that both end portions are located above the substantially central portion when viewed in the longitudinal direction of the machine body, and are inclined from both end portions toward the substantially central portion. The same applies to the wire guide 66. Thereby, the yarn Y is guided to the substantially central portions of the yarn guides 66, 67 along the inclination. As shown in fig. 4, the wire guide 66 is disposed on one side of the 1 st holder 62 in the longitudinal direction of the machine body. The thread guide 67 is disposed on the other side of the 2 nd holder 63 in the longitudinal direction of the machine body.

The robot arm 25 has a yarn processing device 70 holding the yarn Y for passing the yarn Y held by the yarn processing device 70 through the slit 61a. The yarn processing device 70 is a device capable of attracting and holding the yarn Y. As shown in fig. 3, the wire processing device 70 is supported by the base 22 in a state of being attached to the tip portion of the robot arm 25. In the present embodiment, the robot arm 25 corresponds to the 1 st robot arm and the 2 nd robot arm of the present invention. The yarn processing device 70 corresponds to the 1 st yarn holding section and the 2 nd yarn holding section of the present invention. Further, the robot arm 25 includes a rotary table 25a, 3 arms 25b, 25c, and 25d, and two joints 25e and 25f. The turntable 25a is disposed on the upper surface of the base 22. The turntable 25a is rotatable in a horizontal plane by a driving force of a motor, not shown. The arm 25b stands up on the rotary table 25a. The arm 25c is attached to the distal end portion of the arm 25b via a joint portion 25 e. The arm 25c can swing around the joint 25e by a driving force of a motor, not shown. The arm 25d is attached to an end portion of the arm 25c opposite to the joint portion 25e via a joint portion 25f. The arm 25d can swing around the joint 25f by a driving force of a motor, not shown. The thread processing device 70 is mounted on the arm 25d at a position opposite to the joint 25f side.

The control device 69 controls the delivery unit 61, the 1 st gripper 62, the 2 nd gripper 63, the 1 st gripper breaker 64, the 2 nd gripper breaker 65, the robot arm 25, and the cam mechanism 90. Specifically, the control device 69 controls the intersecting unit 61 to inject compressed air into the slit 61a from a nozzle not shown. The control device 69 controls the 1 st gripper 62 to switch the movable portion 62b between the gripping position and the release position. The control device 69 controls the 2 nd gripper 63 to switch the movable portion 63b between the gripping position and the release position. Further, the control device 69 controls switching between an open state in which the 1 st cutting portion 64a and the 1 st holding portion 64b of the 1 st clamp cutter 64 are open and a closed state in which the 1 st cutting portion 64a and the 1 st holding portion 64b are closed. The control device 69 controls switching between an open state in which the 2 nd cutting portion 65a and the 2 nd holding portion 65b of the 2 nd clamp cutter 65 are opened and a closed state in which the 2 nd cutting portion 65a and the 2 nd holding portion 65b are closed. Further, the control device 69 controls the operation of the robot arm 25. The control device 69 controls the cam mechanism 90 to rotate the 1 st gripper 62 about the rotation axis 62c and to rotate the 2 nd gripper 63 about the rotation axis 63 c. The control device 69 is electrically connected to the complex communication unit 61, the 1 st gripper 62, the 2 nd gripper 63, the 1 st gripper breaker 64, the 2 nd gripper breaker 65, the robot arm 25, and the cam mechanism 90.

(Joint operation)

Next, an example of a sequence of performing the splicing operation of the splicing method for splicing two wires by the splicing device 6 will be described with reference to fig. 5 to 12. In the splicing operation, the yarn Y1 on the inner layer side of one of the two yarn feeding packages Ps1 and Ps2 arranged at the same height position in the creel 5 is joined to the yarn Y2 on the outer layer side of the other. As shown in fig. 4, in the present embodiment, the yarn feeding package Ps1 is disposed on the other side of the joint device 6 in the longitudinal direction of the machine body, and the yarn feeding package Ps2 is disposed on the one side of the joint device 6.

At the start of the joint operation, as shown in fig. 5, the movable portion 62b of the 1 st gripper 62 is set to the release position, and the movable portion 63b of the 2 nd gripper 63 is set to the release position. The 1 st clamp cutter 64 is opened by the fixed blade 64a1 and the movable blade 64a2 of the 1 st cutting portion 64a and the fixed grip member 64b1 and the movable grip member 64b2 of the 1 st grip portion 64 b. Further, the 2 nd clamp cutter 65 is brought into a closed state in which the fixed blade 65a1 and the movable blade 65a2 of the 2 nd cutting portion 65a and the fixed grip member 65b1 and the movable grip member 65b2 of the 2 nd grip portion 65b are closed.

In the splicing operation, first, the control device 69 controls the robot arm 25, and the yarn processing device 70 captures the yarn Y1 on the inner layer side of the one yarn-feeding package Ps 1. Thereafter, the yarn Y1 having a predetermined length is fed from the yarn supply package Ps1 by a feeding mechanism (not shown).

Then, the control device 69 controls the robot arm 25 to hook the yarn Y1 held by the yarn processing device 70 from the yarn guide 67 to the yarn guide 66. At this time, as shown in fig. 5, the control device 69 performs the following 1 st robot arm control: the robot arm 25 is controlled so that the thread Y1 passes through the slit 61a, between the fixed portion 62a and the movable portion 62b of the 1 st gripper 62, between the fixed portion 63a and the movable portion 63b of the 2 nd gripper 63, between the fixed blade 64a1 and the movable blade 64a2 of the 1 st gripper cutter 64, and between the fixed holding member 64b1 and the movable holding member 64b 2. The step of opening the 1 st pinching cutter 64 and closing the 2 nd pinching cutter 65 and passing one wire Y1 from the other side in the longitudinal direction of the machine body to one side through the slit 61a, between the fixed blade 64a1 and the movable blade 64a2, and between the fixed grip member 64b1 and the movable grip member 64b2 corresponds to the 1 st wire inserting step of the present invention.

Next, the control device 69 executes the 1 st thread cutting and gripping control (corresponding to the thread cutting and gripping control of the present invention) of cutting the 1 st clamp cutter 64 and gripping the thread Y1 by switching the 1 st clamp cutter 64 to the closed state in which the 1 st cutting portion 64a and the 1 st gripping portion 64b are closed. Specifically, as shown in fig. 6, the movable blade 64a2 and the movable grip member 64b2 are moved by an unillustrated cylinder, and the 1 st pinching cutter 64 is brought into a closed state in which the fixed blade 64a1 and the movable blade 64a2 and the fixed grip member 64b1 and the movable grip member 64b2 are closed. Thereby, the yarn Y1 is cut by the fixed blade 64a1 and the movable blade 64a 2. At this time, the portion of the yarn Y1 on one side of the fixed blade 64a1 and the movable blade 64a2 in the machine body longitudinal direction is sucked by the yarn processing device 70, and the portion on the other side of the fixed blade 64a1 and the movable blade 64a2 is gripped by the fixed gripping member 64b1 and the movable gripping member 64b 2. In other words, the portion of the yarn Y1 on the other side in the machine body longitudinal direction than the portion cut by the fixed blade 64a1 and the movable blade 64a2 is gripped by the fixed gripping member 64b1 and the movable gripping member 64b 2. The step of switching the 1 st pinching cutter 64 from the open state to the closed state to cut and hold one yarn Y1 corresponds to the 1 st yarn cutting holding step of the present invention.

Next, as shown in fig. 7, the control device 69 switches the 2 nd clamp cutter 65 from the closed state to the open state in a state in which the 1 st clamp cutter 64 is caused to grip the yarn Y1. Specifically, the movable blade 65a2 and the movable grip member 65b2 are moved by an unillustrated cylinder, and the 2 nd clamp cutter 65 is opened with the fixed blade 65a1 and the movable blade 65a2 and the fixed grip member 65b1 and the movable grip member 65b2 opened. At this time, the yarn Y1 gripped by the 1 st gripping cutter 64 is pushed in the machine body width direction by the movable blade 65a2 and the movable gripping member 65b2, and is moved to a position deviated from the extension line of the slit 61a in the machine body longitudinal direction. As a result, the thread Y1 is not present between the fixed blade 65a1 and the movable blade 65a2 of the 2 nd clamp cutter 65 and between the fixed grip member 65b1 and the movable grip member 65b2 in the opened state.

Next, the control device 69 controls the robot arm 25, and the yarn processing device 70 captures the yarn Y2 on the outer layer side of the other yarn-feeding package Ps 2. Thereafter, the yarn Y2 having a predetermined length is fed from the yarn supply package Ps2 by a feeding mechanism (not shown).

Then, the control device 69 controls the robot arm 25 to hook the yarn Y2 held by the yarn processing device 70 from the yarn guide 66 to the yarn guide 67. At this time, as shown in fig. 8, the control device 69 performs the following 2 nd robot arm control: the robot arm 25 is controlled so that the thread Y2 passes through the slit 61a, between the fixed portion 62a and the movable portion 62b of the 1 st gripper 62, between the fixed portion 63a and the movable portion 63b of the 2 nd gripper 63, between the fixed blade 65a1 and the movable blade 65a2 of the 2 nd gripping cutter 65, and between the fixed gripping member 65b1 and the movable gripping member 65b 2. The step of switching the 2 nd clamp cutter 65 from the closed state to the open state and passing the other wire Y2 from one side in the longitudinal direction of the machine body to the other side through the slit 61a, the fixed blade 65a1 and the movable blade 65a2, and between the fixed grip member 65b1 and the movable grip member 65b2 corresponds to the 2 nd wire inserting step of the present invention.

Next, the control device 69 executes the 2 nd thread cutting and gripping control of cutting the 2 nd clamp cutter 64 and gripping the thread Y2 by switching the 2 nd cutting portion 65a and the 2 nd gripping portion 65b to a closed state. Specifically, as shown in fig. 9, the movable blade 65a2 and the movable grip member 65b2 are moved by an unillustrated cylinder, and the 2 nd clamp cutter 65 is brought into a closed state in which the fixed blade 65a1 and the movable blade 65a2 and the fixed grip member 65b1 and the movable grip member 65b2 are closed. Thereby, the yarn Y2 is cut by the fixed blade 65a1 and the movable blade 65a 2. At this time, the portion of the yarn Y2 on the other side of the fixed blade 65a1 and the movable blade 65a2 in the machine body longitudinal direction is sucked by the yarn processing device 70, and the portion on the one side of the fixed blade 65a1 and the movable blade 65a2 is gripped by the fixed gripping member 65b1 and the movable gripping member 65b 2. In other words, the portion of the yarn Y2 on the one side in the machine body longitudinal direction than the portion cut by the fixed blade 65a1 and the movable blade 65a2 is gripped by the fixed gripping member 65b1 and the movable gripping member 65b 2. The step of switching the 2 nd clamp cutter 65 from the open state to the closed state to cut and hold the other yarn Y2 corresponds to the 2 nd yarn cutting and holding step of the present invention.

Next, as shown in fig. 10, the control device 69 moves the movable portion 62b of the 1 st gripper 62 to the gripping position and moves the movable portion 63b of the 2 nd gripper 63 to the gripping position by an unillustrated cylinder. Thereby, the yarn Y1 is held between the fixed portion 63a and the movable portion 63b of the 2 nd gripper 63, and the yarn Y2 is held between the fixed portion 62a and the movable portion 62b of the 1 st gripper 62.

Next, the control device 69 controls the cam mechanism 90 to rotate and move the 1 st holder 62 about the rotation shaft 62 c. Specifically, the 1 st holder 62 is rotated and moved clockwise about the rotation axis 62c when viewed in the vertical direction. Thereby, the yarn Y2 gripped by the 1 st gripper 62 and the 2 nd gripping cutter 65 extends between the 1 st gripper 62 and the 2 nd gripping cutter 65 in the machine body longitudinal direction. Thereafter, the 1 st holder 62 is rotated counterclockwise about the rotation axis 62c when viewed in the vertical direction (see the solid double arrow in fig. 10). Thus, the yarn Y2 gripped by the 1 st gripper 62 and the 2 nd gripping cutter 65 is loosened between the 1 st gripper 62 and the 2 nd gripping cutter 65 in the machine body longitudinal direction.

Further, the 2 nd gripper 63 is rotationally moved about the rotation shaft 63c by the cam mechanism 90. Specifically, the 2 nd gripper 63 is rotated counterclockwise about the rotation axis 63c when viewed in the vertical direction. Thereby, the yarn Y1 gripped by the 2 nd gripper 63 and the 1 st gripping cutter 64 extends between the 2 nd gripper 63 and the 1 st gripping cutter 64 in the machine body longitudinal direction. Thereafter, the 2 nd gripper 63 is rotated clockwise about the rotation axis 63c when viewed in the vertical direction (see the solid double arrow in fig. 10). Thereby, the yarn Y1 gripped by the 2 nd gripper 63 and the 1 st gripping cutter 64 is loosened between the 2 nd gripper 63 and the 1 st gripping cutter 64 in the machine body longitudinal direction.

In the present embodiment, the rotational movement of the 1 st gripper 62 is performed in conjunction with the rotational movement of the 2 nd gripper 63. Specifically, the clockwise rotational movement of the 1 st gripper 62 about the rotation axis 62c is interlocked with the counterclockwise rotational movement of the 2 nd gripper 63 about the rotation axis 63c when viewed in the up-down direction. Further, when viewed in the up-down direction, the counterclockwise rotational movement of the 1 st gripper 62 about the rotational axis 62c is interlocked with the clockwise rotational movement of the 2 nd gripper 63 about the rotational axis 63 c.

Next, as shown in fig. 11, the control device 69 moves the movable blade 64a2 and the movable gripping member 64b2 by an unillustrated cylinder, and opens the 1 st pinching cutter 64 to open the fixed blade 64a1 and the movable blade 64a2 and the fixed gripping member 64b1 and the movable gripping member 64b 2. Thereby, the 1 st clamp cutter 64 releases the grip on the thread Y1. At this time, the movable blade 64a2 and the movable grip member 64b2, which are moved by the 1 st gripper 62, are pressed in the body width direction, and are in a curved state. The control device 69 moves the movable blade 65a2 and the movable grip member 65b2 by a cylinder, not shown, and opens the 2 nd clamp cutter 65 with the fixed blade 65a1 and the movable blade 65a2 and the fixed grip member 65b1 and the movable grip member 65b2 opened. Thereby, the holding of the thread Y2 by the 2 nd clamp cutter 65 is released. At this time, the movable blade 65a2 and the movable gripping member 65b2, which are moved by the thread Y1 gripped by the 2 nd gripper 63, are pressed in the machine body width direction to be in a curved state. The switching of the 1 st clamp cutter 64 from the closed state to the open state is performed substantially simultaneously with the switching of the 2 nd clamp cutter 65 from the closed state to the open state.

Next, the control device 69 performs a interlacing control for controlling the interlacing unit 61 so that the two wires Y1 and Y2 inserted into the slit 61a are interlaced. Specifically, substantially simultaneously when the 1 st clamp cutter 64 releases the grip of the yarn Y1 and the 2 nd clamp cutter 65 releases the grip of the yarn Y2, the yarn Y1 and the yarn Y2 passing through the slit 61a are started to be entangled by the entangling unit 61. The time from when the 1 st clamp cutter 64 releases the yarn Y1 and when the 2 nd clamp cutter 65 releases the yarn Y2 to when the interlacing unit 61 starts to perform interlacing on the yarn Y1 and the yarn Y2 is, for example, 0.05 to 1.00 seconds. Thus, the yarn Y1 and the yarn Y2 are joined to form 1 yarn. The step of switching the 1 st clamp cutter 64 from the closed state to the open state to release the grip of one yarn Y1 and the step of switching the 2 nd clamp cutter 65 from the closed state to the open state to release the grip of the other yarn Y2, and then winding the two yarns Y1 and Y2 passing through the slit 61a by the winding unit 61 corresponds to the winding application step of the present invention.

As shown in fig. 12, in the process of applying the interlacing to the threads Y1 and Y2 passing through the slit 61a by the interlacing unit 61, the movable blade 64a2 and the movable gripping member 64b2 are moved by a cylinder, not shown, and the 1 st pinching cutter 64 is brought into a closed state in which the fixed blade 64a1 and the movable blade 64a2 and the fixed gripping member 64b1 and the movable gripping member 64b2 are closed. Thereby, the yarn Y2, which is pushed in the machine body width direction by the 1 st clamp cutter 64 and is in a bent state, is in a state in which bending is released. The movable blade 65a2 and the movable grip member 65b2 are moved by an unillustrated cylinder, and the 2 nd clamp cutter 65 is brought into a closed state in which the fixed blade 65a1 and the movable blade 65a2 are closed with the fixed grip member 65b1 and the movable grip member 65b 2. Thereby, the yarn Y1 in the bent state pressed in the machine body width direction by the 2 nd clamp cutter 65 is in a state in which bending is released. The switching of the 1 st clamp cutter 64 from the open state to the closed state is performed simultaneously with the switching of the 2 nd clamp cutter 65 from the open state to the closed state. These operations may be performed after the end of the cross-over application operation by the cross-over unit 61.

Finally, the movable portion 62b is moved to the release position by a cylinder, not shown, and the movable portion 63b is moved to the release position. Thus, 1 yarn formed by joining the yarn Y1 and the yarn Y2 is released from the grip of the 1 st gripper 62 and the 2 nd gripper 63. With the above, the splicing operation of the two yarns Y1 and Y2 by the splicing device 6 is completed.

(Effect)

As described above, the yarn splicing device 6 of the present embodiment includes the winding unit 61 having the slit 61a, the 1 st clamp cutter 64 for cutting and holding the yarn Y (yarn Y1), and the 2 nd clamp cutter 65 for cutting and holding the yarn Y (yarn Y2). The 1 st clamp cutter 64 includes a1 st cutting portion 64a having a fixed blade 64a1 and a movable blade 64a2, and a1 st grip portion 64b having a fixed grip member 64b1 and a movable grip member 64b 2. The 1 st clamp cutter 64 is switchable between an open state in which the 1 st cutting portion 64a and the 1 st holding portion 64b are opened so as to sandwich an extension line of the slit 61a in the longitudinal direction of the machine body, and a closed state in which the 1 st cutting portion 64a and the 1 st holding portion 64b are closed. The 2 nd clamp cutter 65 includes a2 nd cutting portion 65a having a fixed blade 65a1 and a movable blade 65a2, and a2 nd grip portion 65b having a fixed grip member 65b1 and a movable grip member 65b 2. The 2 nd clamp cutter 65 is switchable between an open state in which the 2 nd cutting portion 65a and the 2 nd holding portion 65b are opened so as to sandwich an extension line of the slit 61a in the machine body longitudinal direction, and a closed state in which the 2 nd cutting portion 65a and the 2 nd holding portion 65b are closed.

In the yarn splicing device 6 of the present embodiment, the portion of one yarn Y (yarn Y1) extending to one side of the winding unit 61 is cut and held by the 1 st pinching cutter 64, and the portion of the other yarn Y (yarn Y2) extending to the other side of the winding unit 61 is cut and held by the 2 nd pinching cutter 65. Then, the two wires Y (wire Y1 and wire Y2) cut by the respective clamp-and-cutter are subjected to interlacing by the interlacing unit 61. Accordingly, the closer the 1 st clamp cutter 64 and the 2 nd clamp cutter 65 are to the interlacing unit 61, the shorter the distance between the portion of the two wires Y (the wire Y1 and the wire Y2) cut by each clamp cutter and the interlacing unit 61, and the smaller the fiber portion can be. Here, the positional relationship between the 1 st clamp cutter 64 and the 2 nd clamp cutter 65 and the interlacing unit 61 may be any positional relationship as long as two wires Y (wire Y1 and wire Y2) can pass through the 1 st clamp cutter 64, the 2 nd clamp cutter 65, and the interlacing unit 61. However, when the 1 st cutting portion 64a and the 1 st gripping portion 64b and the 2 nd cutting portion 65a and the 2 nd gripping portion 65b in the open state are not arranged so as to sandwich the extension line of the slit 61a, that is, when the 1 st cutting portion 64a and the 1 st gripping portion 64b and the 2 nd cutting portion 65a and the 2 nd gripping portion 65b in the open state are located at positions deviated from the extension line of the slit 61a in the predetermined direction, it is necessary to bend the wires Y extending from the slit 61a to both sides so as to be brought between the cutting portions and the gripping portions located at positions deviated from the extension line of the slit 61 a. Therefore, when the distance between the winding unit 61 and each of the pinching and cutting devices becomes short, the thread Y needs to be bent greatly on both sides of the slit 61a in order to pass through each of the cutting portions and each of the holding portions, and it is difficult to insert the thread into the slit 61 a. Therefore, there is also a limit in approaching the complex unit 61 to each clamp cutter. According to the present embodiment, the 1 st cutting portion 64a and the 1 st holding portion 64b, and the 2 nd cutting portion 65a and the 2 nd holding portion 65b are opened so as to sandwich the extension line of the slit 61a in the longitudinal direction of the machine body. Therefore, by directly extending the thread Y inserted into the slit 61a along the extension line of the slit 61a, the thread Y can be easily passed through the slit 61a, the cutting portions, and the holding portions. Thus, even if the clip cutters are brought close to the intersecting unit 61, the insertion of the thread into the slit 61a and the clip cutters is not hindered. Therefore, each clamp cutter can be brought as close as possible to the interlacing unit 61, and the occurrence of a fiber portion when joining the two wires Y (wire Y1 and wire Y2) can be suppressed.

In the present embodiment, when the 1 st clamp cutter 64 is in the closed state, the 1 st cutting portion 64a and the 1 st grip portion 64b are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body, and when the 2 nd clamp cutter 65 is in the closed state, the 2 nd cutting portion 65a and the 2 nd grip portion 65b are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body. When joining two wires Y, the following sequence is sometimes adopted: after one wire Y (wire Y1) is put into the slit 61a and cut and held by the 1 st clamp cutter 64, the other wire Y (wire Y2) is put into the slit 61a and cut and held by the 2 nd clamp cutter 65. In this case, when one yarn Y (yarn Y1) is placed in the slit 61a, the 1 st pinching cutter 64 needs to be opened and the 2 nd pinching cutter 65 needs to be closed. This is to enable one yarn Y (yarn Y1) to be cut by the 1 st cutting portion 64a and held by the 1 st holding portion 64b, and to be not cut by the 2 nd cutting portion 65a and held by the 2 nd holding portion 65 b. Conversely, when another yarn Y (yarn Y2) is placed in the slit, the 2 nd clamp cutter 65 needs to be opened, and the 1 st clamp cutter 64 needs to be closed. This is to enable the other yarn Y (yarn Y2) to be cut by the 2 nd cutting portion 65a and held by the 2 nd holding portion 65b, and to be not cut by the 1 st cutting portion 64a and not held by the 1 st holding portion 64 b. According to the present embodiment, the 1 st cutting portion 64a and the 1 st gripping portion 64b when the 1 st clamp cutter 64 is in the closed state, and the 2 nd cutting portion 65a and the 2 nd gripping portion 65b when the 2 nd clamp cutter 65 is in the closed state are located at positions deviated from the extension line of the slit 61a in the machine body longitudinal direction. Therefore, when one wire Y (wire Y1) is inserted into the slit 61a, the 2 nd cutting portion 65a and the 2 nd holding portion 65b in the closed state do not interfere with the insertion of the wire. Similarly, when another yarn Y (yarn Y2) is fed into the slit 61a, the 1 st cutting portion 64a and the 1 st holding portion 64b in the closed state do not interfere with the feeding of the yarn. This makes it possible to easily insert the wire into the slit 61 a.

Further, the joint device 6 of the present embodiment includes a 1 st holder 62, a 2 nd holder 63, and a cam mechanism 90. The cam mechanism 90 moves the 1 st gripper 62 to extend and relax the yarn Y2 gripped by the 1 st gripper 62 and the 2 nd gripping cutter 65. The cam mechanism 90 also extends and relaxes the yarn Y1 gripped by the 2 nd gripper 63 and the 1 st gripping cutter 64. According to the present embodiment, by extending and relaxing the wires Y1 and Y2, the bulkiness of the wires Y can be reduced, and the wires Y can be properly unwound. This makes it easy to cause the two wires Y (wire Y1 and wire Y2) to cross each other.

The joint device 6 of the present embodiment further includes a control device 69 that controls the intersection unit 61 and the cam mechanism 90. The control device 69 controls the cam mechanism 90 so as to extend and relax the yarn Y2 held by the 1 st gripper 62 and the 2 nd gripping cutter 65 before the interlacing of the two yarns Y (yarn Y1 and yarn Y2) by the interlacing unit 61. The control device 69 controls the cam mechanism 90 so as to extend and relax the yarn Y1 held by the 2 nd gripper 63 and the 1 st gripping cutter 64 before the interlacing of the two yarns Y (yarn Y1 and yarn Y2) by the interlacing unit 61. According to the present embodiment, by elongating and relaxing the wires Y1 and Y2 before applying the interlacing to the two wires Y (the wires Y1 and Y2), the bulkiness of the wires Y can be reduced, and the wires Y can be properly unwound. This can more reliably cause the two wires Y (wire Y1 and wire Y2) to cross each other.

In the present embodiment, the control device 69 controls the state switching of the 1 st clamp breaker 64 and the 2 nd clamp breaker 65. The control device 69 controls the interlacing unit 61 so as to apply interlacing to the two wires Y (the wire Y1 and the wire Y2) passing through the slit 61a after the gripping of the wire Y1 is released by switching the 1 st clamp cutter 64 to the open state and after the gripping of the wire Y2 is released by switching the 2 nd clamp cutter 65 to the open state. According to the present embodiment, when the interlacing unit 61 applies interlacing to the two wires Y (the wire Y1 and the wire Y2), the grip of each clamp cutter on the two wires Y (the wire Y1 and the wire Y2) is released. Therefore, the yarn Y located between the winding unit 61 and each of the pinch-off devices is pulled into the slit by the yarn Y during winding. This can further suppress the occurrence of the fiber portion.

The yarn splicing device 6 of the present embodiment includes a robot arm 25 having a yarn processing device 70 for holding the yarn Y. The control device 69 performs the following 1 st robot arm control: the robot arm 25 is controlled so that the thread Y1 passes through the slit 61a, between the fixed blade 64a1 and the movable blade 64a2 of the 1 st pinching cutter 64, and between the fixed gripping member 64b1 and the movable gripping member 64b 2. Further, the control device 69 performs the following 2 nd robot arm control: the robot arm 25 is controlled so that the thread Y2 passes through the slit 61a, between the fixed blade 65a1 and the movable blade 65a2 of the 2 nd pinching cutter 65, and between the fixed gripping member 65b1 and the movable gripping member 65b 2. According to the present embodiment, in the configuration in which the wire Y is passed through the slit 61a by the robot arm 25, each cutting portion and each holding portion are opened so as to sandwich the extension line of the slit 61 a. Therefore, when the wire Y is passed through the slit 61a, the wire Y held by the robot arm 25 may be moved so as to extend along the extension line of the slit 61a, that is, may be moved along a straight line. Thus, no complicated control of the robotic arm 25 is required when passing the wire Y through the slit 61 a.

Further, in the present embodiment, after the 1 st robot arm control is executed by setting the 2 nd clamp cutter 65 to the closed state, the control device 69 executes the 1 st thread cutting and gripping control of switching the 1 st clamp cutter 64 to the closed state in which the 1 st cutting portion 64a and the 1 st gripping portion 64b are closed to cut and grip the thread Y1. Then, after the 1 st thread is cut and gripped, the control device 69 switches the 2 nd clamp cutter 65 from the closed state to the open state, and executes the 2 nd robot arm control. When the 2 nd clamp cutter 65 is switched from the closed state to the open state, the 2 nd cutting portion 65a and the 2 nd holding portion 65b are configured to press the one wire Y1 held by the 1 st clamp cutter 64 to a position deviated from the extension line of the slit 61a in the longitudinal direction of the machine body. In the case where the order of putting one yarn Y1 into the slit 61a, cutting and holding the yarn by the 1 st pinching cutter 64, and then putting the other yarn Y2 into the slit 61a, cutting and holding the yarn by the 2 nd pinching cutter 65 is adopted, the one yarn Y1 which is put into the slit 61a first may interfere with the putting of the other yarn Y2 into the slit 61 a. According to the present embodiment, the 2 nd clamp cutter 65 is switched from the closed state to the open state before the other wire Y2 is placed in the slit 61a, and thereby the 2 nd cutter 65a and the 2 nd grip 65b push the one wire Y1 which is placed in the slit 61a and gripped by the 1 st clamp cutter 65 to a position deviated from the extension line of the slit 61a in the longitudinal direction of the machine body. Therefore, when the other yarn Y2 is put into the slit 61a, the one yarn Y1 gripped by the 1 st gripping cutter 64 does not become an obstacle. This makes it possible to more easily insert the wire into the slit 61 a.

In the present embodiment, the yarn Y1 and the yarn Y2 passing through the slit 61a are disposed in substantially the same yarn path in the slit 61a. Therefore, the portion where the two wires Y (the wire Y1 and the wire Y2) overlap in the slit 61a becomes long, and when the interlacing is applied to the two wires (the wire Y1 and the wire Y2) by the interlacing unit 61, the interlacing can be applied neatly.

(modification)

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

In the above embodiment, when the 1 st clamp cutter 64 is in the closed state, the 1 st cutting portion 64a and the 1 st holding portion 64b are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body, and when the 2 nd clamp cutter 65 is in the closed state, the 2 nd cutting portion 65a and the 2 nd holding portion 65b are located at positions offset from the extension line of the slit 61a in the longitudinal direction of the machine body. However, when the 1 st clamp cutter 64 is in the closed state, the 1 st cutting portion 64a and the 1 st holding portion 64b may be positioned on the extension line of the slit 61a in the longitudinal direction of the machine body. When the 2 nd clamp cutter 65 is in the closed state, the 2 nd cutting portion 65a and the 2 nd holding portion 65b may be positioned on the extension line of the slit 61a in the longitudinal direction of the machine body. For example, when the 1 st clamp cutter 64 is in the closed state, if the 1 st cutting portion 64a and the 1 st holding portion 64b are located at positions on the extension line of the slit 61a in the machine body longitudinal direction, the thread Y2 is inserted into the slit 61a along the extension line of the slit 61a in the machine body longitudinal direction without passing between the 1 st cutting portion 64a and the 1 st holding portion 64b of the 1 st clamp cutter 64 in the closed state.

In the above embodiment, when the 2 nd clamp cutter 65 is switched from the closed state to the open state, the movable blade 65a2 and the movable holding member 65b2 push the one wire Y (wire Y1) held by the 1 st clamp cutter 64 to a position deviated from the extension line of the slit 61a in the longitudinal direction of the machine body. However, when the 2 nd pinching cutter 65 is switched from the closed state to the open state, the movable blade 65a2 and the movable holding member 65b2 may be configured so as not to press the yarn Y1 to a position deviated from the extension line of the slit 61a in the longitudinal direction of the machine body. In this case, the yarn Y2 is placed in the slit 61a while avoiding the yarn Y1 which is first placed in the slit 61a and held by the 1 st pinch-off cutter 64.

In the above embodiment, after the thread Y1 passing through the slit 61a is cut and held by the 1 st clamp cutter 64, the thread Y2 is passed through the slit 61a, and the thread Y2 is cut and held by the 2 nd clamp cutter 65. However, after both the yarn Y1 and the yarn Y2 are passed through the slit 61a, the yarn Y1 may be cut and held by the 1 st clamp cutter 64, and the yarn Y2 may be cut and held by the 2 nd clamp cutter 65. Specifically, first, at the start of the joint operation, as shown in fig. 13, the 1 st clamp cutter 64 is opened, and the 2 nd clamp cutter 65 is also opened. Then, the thread Y1 is inserted into the slit 61a, and passes between the fixed portion 62a and the movable portion 62b of the 1 st gripper 62, between the fixed portion 63a and the movable portion 63b of the 2 nd gripper 63, between the fixed blade 64a1 and the movable blade 64a2 of the 1 st gripping cutter 64, and between the fixed gripping member 64b1 and the movable gripping member 64b 2. At this time, the thread Y1 does not pass between the fixed blade 65a1 and the movable blade 65a2 of the 2 nd pinching cutter 65 and between the fixed grip member 65b1 and the movable grip member 65b 2. The thread Y2 is inserted into the slit 61a, and passes through between the fixed portion 62a and the movable portion 62b of the 1 st gripper 62, between the fixed portion 63a and the movable portion 63b of the 2 nd gripper 63, between the fixed blade 65a1 and the movable blade 65a2 of the 2 nd gripping cutter 65, and between the fixed gripping member 65b1 and the movable gripping member 65b 2. At this time, the thread Y2 does not pass between the fixed blade 64a1 and the movable blade 64a2 of the 1 st pinching cutter 64 and between the fixed grip member 64b1 and the movable grip member 64b 2. With the above, the 1 st clamp cutter 64 can cut only the yarn Y1 of the yarn Y1 and the yarn Y2 passing through the slit 61a, and the 2 nd clamp cutter 65 can cut only the yarn Y2. The procedure after cutting and holding the thread Y1 by the 1 st clamp cutter 64 and cutting and holding the thread Y2 by the 2 nd clamp cutter 65 is the same as that of the above embodiment.

In the above embodiment, after the 1 st clamp cutter 64 releases the yarn Y1 and the 2 nd clamp cutter 65 releases the yarn Y2, the yarn Y1 and the yarn Y2 are subjected to the interlacing by the interlacing unit 61. However, after the yarn Y1 and the yarn Y2 are subjected to the interlacing by the interlacing unit 61, the 1 st pinch-off device 64 may release the yarn Y1 and the 2 nd pinch-off device 65 may release the yarn Y2. The application of the interlacing between the yarn Y1 and the yarn Y2 by the interlacing unit 61, the release of the yarn Y1 by the 1 st pinch-off device 64, and the release of the yarn Y2 by the 2 nd pinch-off device 65 may be performed simultaneously.

In the above embodiment, the 1 st gripper 62 is configured to rotate about the rotation axis 62c, and the 2 nd gripper 63 is configured to rotate about the rotation axis 63 c. However, the movement method of each gripper is not limited to the rotational movement. For example, the 1 st gripper 62 and the 2 nd gripper 63 may linearly move along a rail or the like extending in the longitudinal direction of the machine body, thereby extending and relaxing the yarn Y1 and the yarn Y2.

In the above embodiment, before the interlacing unit 61 performs interlacing on the two wires Y, the 1 st gripper 62 and the 2 nd gripper 63 are moved to extend and relax the two wires Y held by the 1 st gripper 62 and the 2 nd gripper 63. However, the step of extending and relaxing the two wires Y may be performed without moving the 1 st gripper 62 and the 2 nd gripper 63.

In the above embodiment, the 1 st holder 62 and the 2 nd holder 63 are arranged, but these may not be arranged in the joint device 6 of the present invention.

In the above embodiment, the cam mechanism 90 is provided as 1 moving mechanism common to the 1 st gripper 62 and the 2 nd gripper 63. However, the movement mechanism for moving the 1 st gripper 62 and the movement mechanism for moving the 2 nd gripper 63 may be separately provided.

In the above embodiment, two wires Y (wire Y1 and wire Y2) are put into the slit 61a of the interlacing unit 61 by the robot arm 25 having the wire processing device 70. However, the operator may put two wires Y (wire Y1 and wire Y2) into the slit 61a by a manual operation using a suction gun for sucking and holding the wires Y.

In the above-described embodiment, the case where a pair of creels 5 capable of supporting a plurality of yarn feeding packages Ps in a matrix in the up-down direction and the machine longitudinal direction are arranged back-to-back in the machine width direction has been described. However, the arrangement of the creel 5 is not limited to this, and may be arranged in a row along the longitudinal direction of the machine body, for example. The creel 5 may be a rotary creel capable of holding a plurality of yarn supply packages Ps around a shaft parallel to the vertical direction and rotating each yarn supply package Ps around the shaft by rotating the shaft. By employing the rotary creel, the height of the creel per the same number of yarn supply packages Ps can be suppressed as compared with the case where the creels 5 are aligned in a row along the machine body length direction in the above-described embodiment. In the above embodiment, the case where the rails R are laid on both sides of the bobbin cradle 5 in which the pair of bobbins 5 are arranged back to back has been described, but the arrangement of the rails R is appropriately changed according to the arrangement of the bobbins 5.

In the above embodiment, the case of applying the yarn processing to the splicing operation in which the yarn Y1 on the inner layer side of one of the two yarn feeding packages Ps1 and Ps2 held by the creel 5 of the yarn feeding portion 2 and the yarn Y2 on the outer layer side are connected to each other in the false twisting machine 1 has been described. However, the application range of the yarn processing device 70 of the present invention is not limited to this, and the present invention can be applied to all yarn processing in a textile machine.

In the above embodiment, the robot arm for passing the wire Y1 through the slit 61a and the robot arm for passing the wire Y2 through the slit 61a are the common robot arm 25. However, the robot arm for passing the wire Y1 through the slit 61a and the robot arm for passing the wire Y2 through the slit 61a may be separately provided. In this case, each robot arm has a wire handling device 70.

In the above embodiment, the control device 69 controls the cam mechanism 90 corresponding to the 1 st and 2 nd moving mechanisms, the state switching of the 1 st and 2 nd clamp breakers 64 and 65, and the robot arm 25 of the present invention. In other words, the control device 69 of the above embodiment corresponds to the control devices of the present application according to claim 4, claim 5, and claim 6. However, the control device according to claim 4, the control device according to claim 5, and the control device according to claim 6 of the present application may be a common control device or may be different control devices. Specifically, for example, the control device for controlling the cam mechanism 90 and the control device for controlling the state switching of the 1 st clamp breaker 64 and the 2 nd clamp breaker 65 may be a common control device or may be different control devices. The control device for controlling the cam mechanism 90, the control device for controlling the state switching of the 1 st clamp cutter 64 and the 2 nd clamp cutter 65, and the control device for controlling the robot arm 25 may be common control devices or may be different control devices.

Claims (8)

1. A joint device is provided with:

a interlacing unit having a slit extending in a predetermined direction, and interlacing two wires passing through the slit;

a 1 st thread cutting and holding unit arranged on one side of the winding unit in the predetermined direction for cutting and holding the thread; and

a 2 nd thread cutting and holding unit arranged on the other side of the winding unit in the predetermined direction for cutting and holding the thread,

the 1 st yarn cutting holding unit includes:

a 1 st cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and

a 1 st holding part which is arranged between the 1 st cutting part and the crossing unit and is provided with two holding parts which can be mutually opened and closed, the two holding parts hold the silk thread to hold the silk thread,

the 1 st thread cutting holding means is switchable between an open state in which the 1 st cutting portion and the 1 st holding portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 1 st cutting portion and the 1 st holding portion are closed,

The 2 nd yarn cutting holding unit includes:

a 2 nd cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and

a 2 nd holding part which is arranged between the 2 nd cutting part and the crossing unit and is provided with two holding parts which can be mutually opened and closed, the two holding parts hold the silk thread to hold the silk thread,

the 2 nd thread cutting holding means is switchable between an open state in which the 2 nd cutting portion and the 2 nd holding portion are opened so as to sandwich an extension line of the slit in the predetermined direction, and a closed state in which the 2 nd cutting portion and the 2 nd holding portion are closed.

2. The joint device according to claim 1, wherein,

when the 1 st thread cutting holding unit is in the closed state, the 1 st cutting part and the 1 st holding part are positioned at positions deviated from the extension line of the slit in the predetermined direction,

when the 2 nd thread cutting holding unit is in the closed state, the 2 nd cutting portion and the 2 nd holding portion are located at positions offset from an extension line of the slit in the predetermined direction.

3. The joint device according to claim 1 or 2, further comprising:

a 1 st thread holding unit which is arranged on one side of the 1 st thread cutting holding unit in the predetermined direction and holds the thread;

a second thread holding unit that is disposed on the other side of the second thread cutting holding unit in the predetermined direction and holds a thread;

a 1 st moving mechanism configured to move the 1 st thread gripping unit and to extend and relax the thread gripped by the 1 st thread gripping unit and the 2 nd thread cutting gripping unit; and

and a 2 nd moving mechanism configured to move the 2 nd thread gripping unit, and to extend and relax the thread gripped by the 2 nd thread gripping unit and the 1 st thread cutting gripping unit.

4. A joint arrangement according to claim 3, wherein,

comprises a control device for controlling the delivery unit, the 1 st moving mechanism and the 2 nd moving mechanism,

the control device is provided with a control unit,

the 1 st moving mechanism is controlled so as to extend and relax the yarn held by the 1 st yarn holding unit and the 2 nd yarn cutting holding unit before the yarn is wound by the winding unit,

The 2 nd moving mechanism is controlled so as to extend and relax the thread gripped by the 2 nd thread gripping unit and the 1 st thread cutting gripping unit before the interlacing of the two threads by the interlacing unit.

5. The joint device according to any one of claims 1 to 4, wherein,

comprises a control device for controlling the switching of the states of the winding unit, the 1 st thread cutting and holding unit and the 2 nd thread cutting and holding unit,

the control device controls the interlacing unit so as to apply interlacing to the two threads passing through the slit after the thread is released by switching the 1 st thread cutting and holding unit to the open state and after the thread is released by switching the 2 nd thread cutting and holding unit to the open state.

6. The joint device according to any one of claims 1 to 5, comprising:

a 1 st robot arm having a 1 st thread holding portion for holding one of the two threads, the 1 st robot arm being configured to pass the one thread held by the 1 st thread holding portion through the slit;

A 2 nd robot arm having a 2 nd wire holding portion for holding the other wire of the two wires, the 2 nd robot arm being configured to pass the other wire held by the 2 nd wire holding portion through the slit; and

a control device for controlling the state switching of the 1 st thread cutting and holding unit and the 2 nd thread cutting and holding unit, and the 1 st robot arm and the 2 nd robot arm,

the control device is provided with a control unit,

controlling the 1 st robot arm so that the one wire passes through the slit, between the two blades of the 1 st wire cutting holding unit and between the two holding members in the open state,

and controlling the 2 nd robot arm so that the other wire passes through the slit, and the 2 nd wire cutting and holding unit in the open state is positioned between the two blades and between the two holding members.

7. The connector assembly of claim 6, wherein,

the control device performs:

a 1 st robot arm control for controlling the 1 st robot arm so that the 2 nd thread cutting and holding means is in the closed state, and so that the one thread passes through the slit, between the two blades of the 1 st thread cutting and holding means in the open state, and between the two holding members;

A thread cutting and holding control for switching the 1 st thread cutting and holding means to the closed state after the 1 st robot arm control, thereby cutting and holding the one thread; and

a 2 nd robot arm control for switching the 2 nd wire cutting and holding means to the open state after the wire cutting and holding control, and for controlling the 2 nd robot arm so that the other wire passes through the slit, between the two blades of the 2 nd wire cutting and holding means in the open state, and between the two holding members,

when the 2 nd thread cutting and holding unit is switched from the closed state to the open state, the 2 nd cutting portion and the 2 nd holding portion are configured to press the one thread held by the 1 st thread cutting and holding unit to a position deviated from an extension line of the slit in the predetermined direction.

8. A joining method for joining two wires by a joining device, wherein,

the joint device is provided with:

a interlacing unit having a slit extending in a predetermined direction, and interlacing two wires passing through the slit;

A 1 st thread cutting and holding unit arranged on one side of the winding unit in the predetermined direction for cutting and holding the thread; and

a 2 nd thread cutting and holding unit arranged on the other side of the winding unit in the predetermined direction for cutting and holding the thread,

the 1 st yarn cutting holding unit includes:

a 1 st cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and

a 1 st holding part which is arranged between the 1 st cutting part and the crossing unit and is provided with two holding parts which can be mutually opened and closed, the two holding parts hold the silk thread to hold the silk thread,

the 1 st thread cutting holding means is switchable between an open state in which the 1 st cutting portion and the 1 st holding portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 1 st cutting portion and the 1 st holding portion are closed,

the 2 nd yarn cutting holding unit includes:

a 2 nd cutting unit having two blades capable of opening and closing each other, the cutting unit cutting the thread by sandwiching the thread between the two blades; and

A 2 nd holding part which is arranged between the 2 nd cutting part and the crossing unit and is provided with two holding parts which can be mutually opened and closed, the two holding parts hold the silk thread to hold the silk thread,

the 2 nd thread cutting holding means is switchable between an open state in which the 2 nd cutting portion and the 2 nd holding portion are opened so as to sandwich an extension line of the slit in the predetermined direction and a closed state in which the 2 nd cutting portion and the 2 nd holding portion are closed,

when the 1 st thread cutting holding unit is in the closed state, the 1 st cutting part and the 1 st holding part are positioned at positions deviated from the extension line of the slit in the predetermined direction,

when the 2 nd thread cutting holding unit is in the closed state, the 2 nd cutting part and the 2 nd holding part are positioned at positions deviated from the extension line of the slit in the predetermined direction,

when the 2 nd thread cutting and holding means is switched from the closed state to the open state, the 2 nd cutting portion and the 2 nd holding portion press the one thread held by the 1 st thread cutting and holding means to a position deviated from an extension line of the slit in the predetermined direction,

The above-mentioned joint method is performed:

a 1 st thread inserting step of setting the 1 st thread cutting and holding means to the open state and setting the 2 nd thread cutting and holding means to the closed state, and passing the one thread from the other side in the predetermined direction toward the one side through the slit, between the two blades of the 1 st thread cutting and holding means, and between the two holding members;

a 1 st thread cutting and holding step of switching the 1 st thread cutting and holding means from the open state to the closed state to thereby cut and hold the one thread;

a 2 nd thread inserting step of switching the 2 nd thread cutting and holding means from the closed state to the open state, and passing the other thread from the one side to the other side in the predetermined direction through the slit, between the two blades of the 2 nd thread cutting and holding means, and between the two holding members;

a 2 nd thread cutting and holding step of switching the 2 nd thread cutting and holding means from the open state to the closed state to cut and hold the other thread; and

And a winding and applying step of winding the two threads passing through the slit by the winding and applying means after releasing the grip of the one thread by switching the 1 st thread cutting and gripping means from the closed state to the open state and releasing the grip of the other thread by switching the 2 nd thread cutting and gripping means from the closed state to the open state.