CN106917149B

CN106917149B - Automatic wire hanging device

Info

Publication number: CN106917149B
Application number: CN201610960634.0A
Authority: CN
Inventors: 日置雅明; 下田史雪; 桥本欣三; 辻本明彦
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2015-10-30
Filing date: 2016-10-28
Publication date: 2021-06-29
Anticipated expiration: 2036-10-28
Also published as: CN106917149A; EP3162749B1; EP3162749A1; JP2017082379A; TW201715104A; JP6756573B2; TWI658180B

Abstract

The invention provides an automatic silk hanging device, which can automatically hang a plurality of silk threads on a plurality of silk guides. A yarn hanging unit (33) of an automatic yarn hanging device is provided with a suction member (42), a pressing roller (46) and a yarn separating guide (47). The suction member (42) sucks and holds the spun yarns. The pressing roller (46) presses the plurality of threads held by the suction member (42), thereby widening the interval between the plurality of threads. The yarn dividing guide (47) has a plurality of grooves (47a) arranged in one direction. The plurality of threads are inserted into the plurality of grooves (47a) by retracting the pressing roller (46) to a position where the pressing roller does not contact the plurality of threads while positioning the plurality of grooves (47a) of the thread separation guide (47) at positions facing the plurality of threads with the spacing thereof increased by the pressing roller (46). Then, the yarn dividing guide (47) is moved toward the base end side in the 1 st direction, and a plurality of yarns are threaded on the plurality of fulcrum guides.

Description

Automatic wire hanging device

Technical Field

The invention relates to an automatic yarn hanging device, which is used for hanging a plurality of yarns to a plurality of yarn guides respectively.

Background

In the spinning and drawing machine described in patent document 1, a plurality of yarns spun from the spinning machine are wound around the 1 st and 2 nd godet rollers. The plurality of yarns are respectively hung on the plurality of traverse fulcrum guides. Each of the yarns is traversed by the traverse guide using the traverse fulcrum guide as a fulcrum, and is wound around a bobbin attached to the bobbin holder. In patent document 1, in order to thread a plurality of yarns spun from a spinning machine onto a spinning and drawing machine, first, the 1 st godet roller and the 2 nd godet roller are brought close to each other by moving the 2 nd godet roller to a thread threading position, and the plurality of traverse fulcrum guides are brought close to each other by moving the plurality of traverse fulcrum guides to the thread threading position. Then, the plurality of yarns spun from the spinning machine are held by the suction member and wound in the order of the 1 st godet roller and the 2 nd godet roller. Then, the plurality of yarns are respectively threaded onto the plurality of traverse fulcrum guides.

Patent document 1: japanese patent laid-open publication No. 2015-78455

In patent document 1, in order to thread a plurality of yarns onto a plurality of traverse fulcrum guides, as described above, an operator needs to draw one yarn from among the plurality of yarns held by the suction means for each traverse fulcrum guide and thread the yarn onto the traverse fulcrum guide. In this case, the plurality of threads held by the suction member may be integrally twisted or shortened at a portion near the suction member. Therefore, it is complicated to draw one thread out of the plurality of threads held by the suction member and to hang the thread on the traverse fulcrum guide.

Disclosure of Invention

The invention aims to provide an automatic yarn hanging device which can hang a plurality of yarns to a plurality of yarn guides.

An automatic yarn threading device according to claim 1 is an automatic yarn threading device for threading a plurality of yarns to a plurality of yarn guides, respectively, and includes: a suction member configured to suck the plurality of spun yarns; a pressing roller that presses the plurality of yarns sucked by the suction member to expand the interval between the plurality of yarns; and a yarn dividing guide having a plurality of grooves arranged in one direction, into which the plurality of yarns whose intervals are widened by the pressing roller are inserted, respectively.

The plurality of threads attracted by the attraction member are spaced apart or twisted near the attraction member. According to the present invention, when the pressing roller is pressed against the plurality of yarns, the pressing roller rotates, and the interval between the plurality of yarns on the pressing roller is increased. This makes it possible to easily insert the plurality of threads into the plurality of grooves of the thread separating guide. Further, if a plurality of threads can be inserted into the plurality of grooves of the thread separating guide, the plurality of threads can be respectively hooked on the plurality of thread guides.

The automatic yarn threading device according to claim 2 is the automatic yarn threading device according to claim 1, further comprising a roller sliding device that slides the pressing roller pressed against the plurality of yarns in a direction orthogonal to an axial direction of the pressing roller to separate the pressing roller from the suction member.

When the pressing roller pressed against the plurality of yarns is disposed close to the suction member, the angle of inclination of the yarn from the pressing roller toward the suction member, which is inclined in the axial direction of the pressing roller, increases. When the inclination angle is increased, the yarn is deviated at a position away from the pressing roller toward the suction member, which causes the yarn to swing. Therefore, in the present invention, the pressing roller pressed against the plurality of yarns is slid and separated from the suction member. This reduces the angle of inclination of the yarn, and can suppress yarn hunting.

The automatic yarn threading device according to claim 3 is the automatic yarn threading device according to claim 1 or 2, further comprising a relative movement device that relatively moves the press roller and the yarn dividing guide so that the plurality of yarns, the intervals of which are expanded by the press roller, are inserted into the plurality of grooves of the yarn dividing guide, respectively.

According to the present invention, the pressing roller and the yarn separating guide are moved relative to each other, whereby the plurality of yarns, the intervals between which are widened by the pressing roller, can be inserted into the plurality of grooves of the yarn separating guide.

An automatic yarn threading device according to claim 4 is the automatic yarn threading device according to claim 3, wherein the suction member extends in a predetermined 1 st direction, and the relative movement device includes: a roller swinging device configured to swing the pressing roller around a swinging shaft extending in a 2 nd direction orthogonal to the 1 st direction and being offset from the suction member in a 3 rd direction orthogonal to both the 1 st direction and the 2 nd direction; and a guide swinging device for swinging the yarn dividing guide about the swinging shaft.

According to the present invention, if the yarn separating guide is swung to a position overlapping the pressing roller in a state where the interval between the plurality of yarns is widened by the pressing roller and then the pressing roller is swung to a position not pressed against the plurality of yarns, the plurality of yarns whose interval is widened by the pressing roller can be inserted into the plurality of grooves of the yarn separating guide.

The automatic yarn threading device according to claim 5 is the automatic yarn threading device according to any one of claims 1 to 4, further comprising a retracting device for retracting the pressing roller and the yarn separating guide to a position where they do not interfere with the plurality of yarns.

According to the present invention, the pressing roller and the yarn separating guide are retracted so as not to interfere with the plurality of yarns, and thus, when the plurality of yarns are sucked by the suction member, the pressing roller and the yarn separating guide can be prevented from being obstructed.

An automatic yarn threading device according to claim 6 is the automatic yarn threading device according to claim 5, wherein the suction member extends in a predetermined 1 st direction, and the retraction device includes: a roller swinging device for swinging the pressing roller around a swinging shaft which extends along a 2 nd direction orthogonal to the 1 st direction and is configured to be staggered relative to the suction member in a 3 rd direction orthogonal to both the 1 st direction and the 2 nd direction; and a guide swinging device for swinging the yarn dividing guide about the swinging shaft.

According to the present invention, the pressing roller and the yarn separating guide can be swung to positions shifted from the suction member in the 3 rd direction, and thus the pressing roller and the yarn separating guide can be retracted so as not to interfere with the yarn.

The automatic yarn threading device according to claim 7 is the automatic yarn threading device according to any one of claims 1 to 5, wherein the plurality of yarn guides are arranged in a predetermined arrangement direction, and configured to be capable of inserting the yarn from one side in the arrangement direction, and the automatic yarn threading device further includes a guide sliding device that slides the yarn separating guide holding the plurality of yarns in a direction inclined with respect to the arrangement direction.

According to the present invention, the yarn separating guide in which the plurality of yarns are respectively caught in the plurality of grooves is slid in a direction inclined with respect to the arrangement direction of the plurality of yarn guides, whereby the yarns can be caught by inserting the yarns from one side in the arrangement direction of the corresponding yarn guides.

The automatic yarn threading device according to claim 8 is the automatic yarn threading device according to any one of claims 1 to 7, further comprising a cutter configured to cut the plurality of yarns.

According to the present invention, a plurality of yarns are held in advance, and after the plurality of held yarns are sucked by the suction member, the plurality of yarns are cut by the cutter, whereby the plurality of yarns held in advance can be delivered to the suction member.

The automatic yarn threading device according to claim 9 is the automatic yarn threading device according to any one of claims 1 to 8, further comprising a yarn take-up guide for hanging the plurality of yarns in a taken-up state.

According to the present invention, the plurality of yarns are bound by being hung on the yarn binding guide in advance, so that the interval between the plurality of yarns at the position facing the suction member can be reduced, and the plurality of yarns can be reliably sucked by the suction member.

The automatic yarn threading device according to claim 10 is the automatic yarn threading device according to any one of claims 1 to 9, further comprising a motor for rotating the pressing roller.

According to the present invention, when the pressing roller pressed against the plurality of yarns is rotationally driven, the pressing roller can be rotated stably as compared with a case where the pressing roller pressed against the plurality of yarns is rotated only by a frictional force with the yarns. This can stably widen the interval between the plurality of wires.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, since the interval between the plurality of yarns can be increased by pressing the pressing roller against the plurality of yarns, the plurality of yarns can be easily inserted into the plurality of grooves of the yarn separating guide. Further, if a plurality of threads can be inserted into the plurality of grooves of the thread separating guide, the plurality of threads can be respectively hooked on the plurality of thread guides.

Drawings

Fig. 1 is a schematic configuration diagram of a spinning draft machine according to an embodiment of the present invention.

Fig. 2 is a view of fig. 1 as viewed from the direction of arrow II.

Fig. 3A and 3B are views of the periphery of the fulcrum guide as viewed from above, where fig. 3A shows a state where the fulcrum guide is located at the winding position, and fig. 3B shows a state where the fulcrum guide is located at the yarn hooking position.

Fig. 4A is a perspective view of the thread hanging unit, and fig. 4B is a perspective view of the thread hanging unit viewed from a direction different from that of fig. 4A.

Fig. 5A is a view of the yarn threading unit viewed from the yarn separating guide side in the 2 nd direction, fig. 5B is a view of the yarn threading unit viewed from the suction member side in the 3 rd direction, and fig. 5C is a cross-sectional view taken along line C-C of a part of fig. 5A.

Fig. 6 is a block diagram showing an electrical configuration of the spinning draft machine.

Fig. 7A is a view showing a state in which a plurality of yarns held by the yarn holding portion are caught by the yarn collecting guide and are then sucked by the suction member, and fig. 7B is a view showing a state in which a plurality of yarns are cut by the cutter.

Fig. 8A is a view showing a state when the yarn is wound around the 1 st godet roller, and fig. 8B is a view showing a state when the yarn is wound around the 2 nd godet roller.

Fig. 9A and 9B are views showing a state in which the pressing roller is in the pressing posture, fig. 9A is a view corresponding to fig. 5A, and fig. 9B is a view corresponding to fig. 5B.

Fig. 10A and 10B are views showing a state in which the slide member is moved to separate the pressing roller from the suction member after fig. 9A and 9B, fig. 10A being a view corresponding to fig. 5A, and fig. 10B being a view corresponding to fig. 5B.

Fig. 11A and 11B are views showing a state in which the split guide is set to the thread-hanging posture after fig. 10A and 10B, fig. 11A is a view corresponding to fig. 5A, and fig. 11B is a view corresponding to fig. 5B.

Fig. 12A and 12B are views showing a state in which the yarn is inserted into the groove of the yarn separating guide by returning the push-out roller to the retracted posture after fig. 11A and 11B, fig. 12A being a view corresponding to fig. 5A, and fig. 12B being a view corresponding to fig. 5B.

Fig. 13A and 13B are views showing a state where the slide member is returned after fig. 12A and 12B, fig. 13A being a view corresponding to fig. 5A, and fig. 13B being a view corresponding to fig. 5B.

Fig. 14 is a view showing an operation of hanging the yarn from the yarn separating guide to each fulcrum guide.

Description of the symbols

4: an automatic wire hanging device; 21: a fulcrum guide; 42: a suction member; 43: a thread take-up guide; 44: a cutter; 45: a sliding member; 46: pressing the roller; 47: a splitting guide; 47 a: a groove; 51: a cylinder; 53: a roller oscillating device; 71: a guide swinging device.

Detailed Description

Preferred embodiments of the present invention will be described below.

(integral construction of spinning traction machine)

The spinning and drawing machine 1 of the present embodiment draws a plurality of yarns Y spun from a spinning device, not shown, and winds the yarns Y around a plurality of bobbins B to form a plurality of packages P. As shown in fig. 1 and 2, the spinning and drawing machine 1 includes a plurality of drawing units 3 and one automatic yarn threading device 4 provided in common to the plurality of drawing units 3.

The plurality of traction units 3 are arranged in a horizontal direction. In the following, the direction in which the plurality of traction units 3 are arranged is referred to as a left-right direction, a direction horizontal and orthogonal to the left-right direction is referred to as a front-rear direction, and a direction in which gravity acts is referred to as a vertical direction.

(traction unit)

Each drawing unit 3 includes a yarn holding portion 11, a 1 st godet roller 12, a 2 nd godet roller 13, and a winding portion 14. The yarn holding portion 11 extends in the left-right direction and is used to suck and hold a plurality of yarns Y spun from the spinning device in advance before the yarns are wound on the

guide rollers

12 and 13 and the winding portion 14.

The 1 st godet roller 12 is a roller whose axial direction is substantially parallel to the left-right direction, and is disposed below the yarn holding portion 11 in the vertical direction. The 1 st godet roller 12 is rotationally driven by a 1 st godet motor 111 (see fig. 6). The 2 nd godet roller 13 is a roller whose axial direction is substantially parallel to the left-right direction, and is disposed on the rear side of the 1 st godet roller 12. The 2 nd godet roller 13 is rotationally driven by a 2 nd godet motor 112 (see fig. 6). The 2 nd godet roller 13 is movably supported by a guide rail 15. The guide rail 15 extends so as to be positioned on the upper side in the vertical direction as the rear side in the front-rear direction becomes closer. The 2 nd godet roller 13 is connected to an air cylinder 113 (see fig. 6). When the air cylinder 113 is driven, the 2 nd godet roller 13 moves along the guide rail 15. In addition, the 2 nd godet roller 13 is thereby movable between a winding position at the time of winding the yarn Y shown by a solid line in fig. 2 and a yarn threading position at the time of yarn threading, which is arranged closer to the 1 st godet roller 12 than the winding position shown by a chain line in fig. 2. The plurality of yarns Y spun from the spinning device are wound in the order of the

godet rollers

12 and 13.

The winding section 14 includes a plurality of fulcrum guides 21 (a "yarn guide" according to the present invention), a plurality of traverse yarn guides 22, a turn table 23, two bobbin holders 24, and a contact roller 25. As shown in fig. 2, 3A, and 3B, the plurality of fulcrum guides 21 are provided separately from the plurality of threads Y and are arranged in the front-rear direction. Each fulcrum guide 21 has a groove 21a opened rearward, and the yarn Y can be threaded by inserting the yarn Y into the groove 21a from the rear side.

The plurality of fulcrum guides 21 are attached to the plurality of sliders 26. The plurality of sliders 26 are supported to be movable in the front-rear direction along the guide rail 27. The plurality of sliders 26 are connected to a cylinder 114 (see fig. 6). When the air cylinder 114 is driven, the plurality of sliders 26 move in the front-rear direction along the guide rail 27. Thus, the plurality of fulcrum guides 21 can move between the winding position, which is a position when the yarn Y is wound and is arranged apart from each other in the front-rear direction as shown in fig. 2 and 3A, and the yarn hooking position, which is a position when the yarn is hooked and is arranged close to each other on the front side of the guide rail 27 as shown in fig. 3B.

The plurality of traverse guides 22 are provided separately from the plurality of yarns Y and arranged in the front-rear direction. Each traverse guide 22 is driven by a traverse motor 115 (see fig. 6) and reciprocates in the front-rear direction. Thereby, the yarn Y hooked on the traverse guide 22 traverses around the fulcrum guide 21.

The turntable 23 is a disk-shaped member whose axial direction is parallel to the front-rear direction. The turntable 23 is rotationally driven by a turntable motor 116 (see fig. 6). The two bobbin holders 24 are axially parallel to the front-rear direction and rotatably supported by the upper end portion and the lower end portion of the turn table 23. A plurality of bobbins B provided separately from the plurality of yarns Y are mounted on the bobbin holders 24 in a front-rear direction in a row. Further, the two bobbin holders 24 are each rotationally driven by a separate winding motor 117 (see fig. 6).

When the upper bobbin holder 24 is rotationally driven, the yarn Y traversed by the traverse guide 22 is wound around the bobbin B to form the package P. After the formation of the package P is completed, the vertical positions of the two bobbin holders 24 are replaced by rotating the turn table 23. Thus, the bobbin holder 24 positioned on the lower side up to this point moves to the upper side, and the yarn Y can be wound around the bobbin B mounted on the bobbin holder 24 to form the package P. The bobbin holder 24 located on the upper side up to this point moves to the lower side, and the completed package P can be collected from the bobbin holder 24.

The contact roller 25 is a roller whose axial direction is parallel to the front-rear direction, and is disposed immediately above the bobbin holder 24 on the upper side. The contact roller 25 is in contact with the surface of the package P formed by winding the yarn Y around the bobbin B mounted on the bobbin holder 24 on the upper side, thereby applying a contact pressure to the surface of the package P during winding of the yarn Y.

(automatic thread hanging device)

Next, the automatic yarn threading device 4 will be explained. The automatic yarn threading device 4 includes a main body 31, a robot arm 32, and a yarn threading unit 33. The main body 31 is formed in a substantially rectangular parallelepiped shape, and a threading control device 102 (see fig. 6) for controlling the operation of the robot arm 32 and the threading unit 33, and the like are mounted therein. Further, a guide rail 35 extending in the left-right direction across the plurality of traction units 3 is disposed on the front side of the plurality of traction units 3, and the main body 31 is suspended from the guide rail 35. The main body 31 is moved in the left-right direction along the guide rail 35 by the main body moving device 121 (see fig. 6).

The robot arm 32 is mounted on the lower surface of the main body portion 31. The robot arm 32 includes a plurality of arms 32a and a plurality of joints 32b connecting the arms 32a to each other. Each joint portion 32b incorporates an arm motor 122 (see fig. 6), and when the arm motor 122 (see fig. 6) is driven, the arm 32a swings about the joint portion 32 b.

The yarn hooking unit 33 is attached to the distal end portion of the robot arm 32. As shown in fig. 4A, 4B, 5A, 5B, and 5C, the yarn hooking unit 33 is formed in a long shape in one direction (hereinafter, this direction is referred to as the 1 st direction), and is connected to the arm 32a at an end portion on one side in the 1 st direction (hereinafter, the base end side in the 1 st direction). The yarn hooking unit 33 includes a frame 41, a suction member 42, a yarn collecting guide 43, a cutter 44, a slide member 45, a pressing roller 46, and a yarn separating guide 47. In the following, the side opposite to the base end side in the 1 st direction is referred to as a tip end side.

Here, in the present embodiment, when the robot arm 32 is driven, the yarn hooking unit 33 attached to the tip end portion of the robot arm 32 moves. At this time, the orientation of the yarn hooking unit 33 can also be changed. However, as will be described later, the yarn threading unit 33 is mainly used in the following orientation during yarn threading: the vertical direction in fig. 5B is parallel to the vertical direction, and the upper side in fig. 5B is the upper side in the vertical direction and the lower side in fig. 5B is the lower side in the vertical direction. Therefore, hereinafter, the vertical direction in fig. 5B of the threading unit 33 is referred to as the 2 nd direction, the upper side in fig. 5B of the threading unit 33 is referred to as the upper side in the 2 nd direction, and the lower side in fig. 5B of the threading unit 33 is referred to as the lower side in the 2 nd direction. In the following, a direction perpendicular to both the 1 st direction and the 2 nd direction is referred to as a 3 rd direction. In the following, as shown in fig. 4A, 4B, 5A, 5B, and 5C, one side and the other side in the 3 rd direction are defined and explained.

The base end of the frame 41 in the 1 st direction is connected to the arm 32 a. The suction member 42 is attached to a 3 rd direction side portion of the frame 41. The suction member 42 extends in the 1 st direction and can suck the yarn Y at its leading end. The thread take-up guide 43 is attached to the frame 41 and is positioned below the leading end of the suction member 42 in the 2 nd direction. As will be described later, the plurality of yarns Y are caught by the yarn catching guide 43 in a state of being caught during yarn catching. The cutter 44 is attached to the frame 41 and is located below the yarn takeup guide 43 in the 2 nd direction. As will be described later, the cutter 44 is used to cut the yarn Y when the yarn Y is delivered from the yarn holding portion 11 to the suction member 42.

The slide member 45 is disposed to be shifted to the other side in the 3 rd direction with respect to the suction member 42, the thread take-up guide 43, and the cutter 44. The slide member 45 is attached to the frame 41 via an air cylinder 51, and when the air cylinder 51 is driven, the slide member 45 moves in the 1 st direction with respect to the frame 41.

The pressing roller 46 is a free roller rotatably supported by a shaft 46a orthogonal to the 2 nd direction, and is disposed above the sliding member 45 in the 2 nd direction. Further, one end of the shaft 46a is attached to a cylindrical shaft 52. The shaft 52 extends in the 2 nd direction and penetrates the slide member 45. A roller swing device 53 is connected to the end of the shaft 52 on the lower side in the 2 nd direction.

The roller swing device 53 is disposed below the slide member 45 in the 2 nd direction, and includes two

pulleys

61 and 62, a belt 63, and an air cylinder 64. The pulley 61 is attached to the end of the shaft 52 on the lower side in the 2 nd direction, with the axial direction thereof being parallel to the 2 nd direction. The pulley 62 is disposed on the base end side in the 1 st direction with respect to the pulley 61. The pulley 62 is axially parallel to the 2 nd direction and rotatably supported by the sliding member 45. The belt 63 is made of rubber or the like, and is wound around the

pulleys

61 and 62. Further, a cylinder mounting portion 63a is provided on the belt 63 at a portion located between the

pulleys

61 and 62. The cylinder 64 is fixed to the slide member 45 and attached to the cylinder attachment portion 63 a. When the cylinder 64 is driven, the cylinder mounting portion 63a moves in the 1 st direction, whereby the belt 63 travels, whereby the

pulleys

61, 62 rotate. When the pulley 61 rotates, the shaft 52 rotates, and the pressing roller 46 swings around the axis of the shaft 52 (a "swing shaft" in the present invention). Further, the pressing roller 46 can selectively take either the retreat posture or the pressing posture by swinging about the axis of the shaft 52; in the retracted posture, as shown in fig. 4A, 5A, and 5B, the shaft 46a is substantially parallel to the 1 st direction, and the entire pressing roller 46 is located on the other side in the 3 rd direction than the region where the suction member 42, the thread take-up guide 43, and the cutter 44 are arranged; in this pressing posture (see fig. 10A and 10B), the shaft 46a is substantially parallel to the 3 rd direction, and the pressing roller 46 is located in the area where the suction member 42, the thread take-up guide 43, and the cutter 44 are arranged in the 3 rd direction.

The yarn separation guide 47 is disposed on the upper side of the pressing roller 46 in the 2 nd direction. The yarn dividing guide 47 has a plurality of grooves 47a formed therein and aligned in the longitudinal direction thereof. The plurality of grooves 47a are open at one end, and the distance between the grooves 47a increases as the distance from the open portion increases. Further, one end of the yarn dividing guide 47 in the longitudinal direction is attached to a shaft 71 extending parallel to the 2 nd direction. As shown in fig. 5C, the shaft 71 is inserted through the cylindrical shaft 52 and extends to the lower side in the 2 nd direction than the pulley 61. A guide swing device 72 is connected to the end of the shaft 71 on the lower side in the 2 nd direction.

The guide swing device 72 is disposed below the roller swing device 53 in the 2 nd direction, and includes two

pulleys

81 and 82, a belt 83, and an air cylinder 84. The pulley 81 is disposed below the pulley 61 in the 2 nd direction so that the axial direction thereof is parallel to the 2 nd direction. The pulley 81 is attached to the end of the shaft 71 on the lower side in the 2 nd direction. The pulley 82 is disposed axially parallel to the 2 nd direction below the pulley 62 in the 2 nd direction. The pulley 82 is rotatably supported by the sliding member 45. The belt 83 is made of rubber or the like, and is wound around the

pulleys

81 and 82. Further, on the belt 83, a cylinder mounting portion 83a is provided at a portion located between the

pulleys

81 and 82. The cylinder 84 is fixed to the slide member 45 and attached to the cylinder attachment portion 83 a. When the cylinder 84 is driven, the cylinder mounting portion 83a moves in the 1 st direction, whereby the belt 83 travels, whereby the

pulleys

81, 82 rotate. When the pulley 81 rotates, the shaft 71 rotates, and the yarn separation guide 47 swings around the axis of the shaft 71 (the "swing shaft" in the present invention). The yarn separating guide 47 can selectively take either the retracted posture or the yarn hooking posture by swinging about the axis of the shaft 71; in the retracted posture, as shown in fig. 4A, 5A, and 5B, the longitudinal direction of the yarn separating guide 47 is substantially parallel to the 1 st direction, and the entire yarn separating guide 47 is located on the other side in the 3 rd direction than the region where the suction member 42, the yarn collecting guide 43, and the cutter 44 are arranged; in the thread hanging posture (see fig. 11A and 11B), the longitudinal direction of the thread separation guide 47 is substantially parallel to the 3 rd direction, and the thread separation guide 47 is located in the 3 rd direction in a region where the suction member 42, the thread take-up guide 43, and the cutter 44 are arranged.

(Electrical constitution of spinning traction machine)

Next, an electrical configuration of the spinning and drawing machine 1 will be described. In the spinning and drawing machine 1, as shown in fig. 6, a drawing means control device 101 is provided in each drawing means 3, and the drawing means control device 101 controls the operations of the 1 st yarn guiding motor 111, the 2 nd yarn guiding motor 112, the

air cylinders

113 and 114, the traverse motor 115, the turn table motor 116, the winding motor 117, and the like. Each traction unit 3 includes a plurality of traverse motors 115 and two winding motors 117, but only one of the motors is illustrated in fig. 6. In fig. 6, only one drawing means control device 101 is shown with the 1 st guide wire motor 111, the 2 nd guide wire motor 112, the

air cylinders

113 and 114, the traverse motor 115, the turn table motor 116, and the winding motor 117 as control targets.

In the spinning and drawing machine 1, the automatic yarn threading device 4 is provided with a yarn threading control device 102, and the yarn threading control device 102 controls the operations of the main body moving device 121, the arm motor 122, the suction member 42, the cutter 44, the

air cylinders

51, 64, 84, and the like. The robot arm 32 has a plurality of joint portions 32b and a plurality of arm motors 122 corresponding to the plurality of joint portions 32b, but only one arm motor 122 is illustrated in fig. 6.

The spinning and drawing machine 1 further includes a control device 100 for controlling the entire apparatus. The control device 100 is connected to a plurality of drawing unit control devices 101 and a yarn hooking control device 102 provided in the plurality of drawing units 3, and controls the operation of the whole spinning and drawing machine 1 by controlling the operations of the plurality of drawing unit control devices 101 and the yarn hooking control device 102.

(method of hanging silk)

Next, a method of threading the automatic threading device 4 to the

guide rollers

12 and 13 and the plurality of fulcrum guides 21 will be described. Here, before the automatic yarn threading device 4 is caused to thread, the plurality of yarns Y spun from the spinning device are sucked and held by the yarn suction unit 11 in advance. Further, the 2 nd godet roller 13 of the drawing unit 3 for winding is positioned at the winding position, thereby being brought close to the 1 st godet roller 12. Further, the plurality of fulcrum guides 21 are positioned at the yarn hooking position, thereby being brought close to each other. In the yarn threading unit 33, the pressing roller 46 and the yarn separating guide 47 are set to the retracted positions, respectively.

When the automatic yarn threading device 4 is caused to thread, first, the automatic yarn threading device 4 is moved to a position where it overlaps the drawing unit 3 to be thread-threaded in the front-rear direction. Next, the robot arm 32 is driven to position the yarn hooking unit 33 at an upper side in the vertical direction than the yarn holding portion 11 in such a posture that the 1 st direction is parallel to the front-rear direction, the 2 nd direction is parallel to the vertical direction, and the 3 rd direction is parallel to the left-right direction. At this time, the leading end portion of the suction member 42 in the 1 st direction faces the plurality of yarns Y. Subsequently, the robot arm 32 is driven to move the yarn hooking unit 33 toward the leading end side in the 1 st direction. Then, as shown in fig. 7A, the plurality of yarns Y are hung on the yarn bunching guide 43. In this state, the portions of the plurality of yarns Y between the yarn pinching guide 43 and the yarn holding portion 11 pass through the position where they can be cut by the cutter 44.

Next, the suction member 42 is driven, and the suction member 42 sucks and holds the plurality of yarns Y. At this time, the plurality of yarns Y are wound by the yarn winding guide 43, and are arranged close to each other at the portion facing the distal end portion of the suction member 42. Therefore, when the suction member 42 is driven, the plurality of yarns Y are reliably sucked.

Subsequently, the plurality of threads Y are cut by the cutter 44. Thereby, the yarn portion on the yarn holding portion 11 side among the plurality of cut yarns Y is sucked by the yarn holding portion 11. On the other hand, as shown in fig. 7B, the thread portions of the plurality of threads Y on the thread take-up guide 43 side are sucked and held by the suction member 42. This allows the plurality of yarns Y to be delivered from the yarn holding portion 11 to the suction member 42.

In the present embodiment, while the plurality of yarns Y are passed from the yarn holding portion 11 to the suction member 42 as described above, the pressing roller 46 and the yarn separating guide 47 are in the retracted posture in which the entire yarn Y is positioned on the other side in the 3 rd direction than the suction member 42, the yarn bunching guide 43, and the cutter 44. Therefore, when the yarn Y is delivered from the yarn holding portion 11 to the suction member 42, the press roller 46 and the yarn separating guide 47 do not interfere with the yarn Y and prevent the delivery of the yarn Y.

Next, the robot arm 32 is driven to move the yarn hooking unit 33, and thereby the plurality of yarns Y held by the suction member 42 are wound around and hooked on the 1 st godet roller 12 from the lower side in the vertical direction as shown in fig. 8A. Next, as shown in fig. 8B, the plurality of yarns Y are wound around the 2 nd godet roller 13 from the upper side in the vertical direction.

Next, the robot arm 32 is driven to position the yarn hooking unit 33 below the plurality of fulcrum guides 21 in a posture in which the 2 nd direction is parallel to the vertical direction and the 1 st direction is inclined with respect to the front-rear direction. Next, as shown in fig. 9A and 9B, the pressing roller 46 is swung around the shaft 52, thereby switching from the retracted posture to the pressing posture. Then, the pressing roller 46 is pressed against the plurality of yarns Y and rotated by a frictional force with the plurality of yarns Y. This enlarges the interval between the portions of the plurality of yarns Y pressed by the pressing roller 46. The intervals between the plurality of threads Y are substantially the same as the intervals between the openings of the grooves 47a of the yarn separating guide 47.

Next, as shown in fig. 10A and 10B, the slide member 45 is slid toward the tip side in the 1 st direction. Then, the pressing roller 46 pressed against the plurality of yarns Y slides together with the sliding member 45 toward the leading end side in the 1 st direction and is separated from the suction member 42. Thereby, as compared with the state of fig. 9A and 9B, the inclination angle of the yarn Y from the pressing roller 46 toward the suction member 42 in the 3 rd direction is smaller when viewed from the 2 nd direction. Here, when the above-described inclination angle of the yarn Y is large, a deviation is likely to occur at a position where the yarn Y is separated from the pressing roller 46 toward the suction member 42, which becomes a cause of yarn hunting. In particular, the larger the inclination angle, the more outward in the axial direction of the pressing roller 46, the more likely the problem arises. Therefore, in the present embodiment, as described above, the pressing roller 46 is separated from the suction member, whereby the inclination angle of the yarn Y is reduced to suppress the yarn oscillation.

Next, as shown in fig. 11A and 11B, the yarn separating guide 47 is swung about the shaft 71, thereby switching from the retracted posture to the yarn hooking posture. Thus, the grooves 47a of the yarn separating guide 47 face the yarns Y pressed by the pressing rollers 46. Next, as shown in fig. 12A and 12B, the pressing roller 46 is swung around the shaft 52 to return from the pressing posture to the retracted posture. Then, the pressing roller 46 is separated from the plurality of yarns Y, and the plurality of yarns Y are inserted into the plurality of grooves 47a, respectively. At this time, the distance between the grooves 47a increases as the distance from the openings of the grooves 47a increases, and therefore, the distance between the plurality of yarns Y inserted into the grooves 47a further increases.

Here, as shown in fig. 7B, in a state where the plurality of yarns Y are sucked and held by the suction member 42, the plurality of yarns Y are integrally twisted or reduced in interval in a portion near the suction member 42. Therefore, when this state is maintained, it is difficult to pull out each of the yarns Y from the plurality of yarns Y and insert the yarn Y into the corresponding groove 47a of the yarn separating guide 47.

Therefore, in the present embodiment, the pressing roller 46 is pressed against the plurality of yarns Y sucked and held by the suction member 42. Thereby, the intervals of the portions of the plurality of yarns Y pressed by the pressing rollers 46 are expanded to be substantially equal to the intervals of the plurality of grooves 47 a. Then, after the yarn separating guide 47 is set to the yarn hooking posture, the pressing roller 46 is returned to the retreat posture, whereby the plurality of yarns Y can be inserted into the plurality of grooves 47a of the yarn separating guide 47.

Next, as shown in fig. 13A and 13B, the sliding member 45 is slid toward the base end side in the 1 st direction. Then, as shown in fig. 14, the yarn separating guide 47 slides together with the slide member 45 toward the base end side in the 1 st direction, and the plurality of yarns Y inserted into the plurality of grooves 47a are respectively hooked on the corresponding fulcrum guides 21. Here, as described above, in the state of fig. 9A to 13B, the 1 st direction is inclined with respect to the front-rear direction, but more specifically, as shown in fig. 14, the 1 st direction is parallel to a straight line connecting the respective grooves 47a of the yarn separating guide 47 and the distal end openings of the corresponding grooves 21a of the fulcrum guide 21. After the yarn hooking to the plurality of fulcrum guides 21 is completed, the 2 nd godet roller 13 and the plurality of fulcrum guides 21 are moved to the winding position. In the yarn threading unit 33, the yarn dividing guide 47 is returned to the retracted posture by swinging about the shaft 71.

Here, in the present embodiment, the sliding member 45 is slid toward the leading end side in the 1 st direction, whereby the pressing roller 46 is slid toward the leading end side in the 1 st direction to be separated from the suction member 42. On the other hand, by sliding the sliding member 45 toward the base end side in the 1 st direction, the sliding member is slid toward the base end side in the 1 st direction of the yarn separating guide 47 in which the plurality of yarns Y are inserted into the plurality of grooves 47a, and the yarns are hung on the plurality of fulcrum guides 21. That is, in the present embodiment, the sliding member 45 is combined with the cylinder 51 for sliding the sliding member 45 in the 1 st direction, and then, the roller sliding device and the guide sliding device of the present invention are used in combination.

In the present embodiment, when delivering and receiving the plurality of yarns Y from the yarn holding portion 11 to the suction member 42, the pressing roller 46 and the yarn separating guide 47 are set to the retracted positions so as not to interfere with the yarns Y. On the other hand, after the interval between the plurality of yarns Y is widened by the pressing roller 46, the yarn separating guide 47 is switched from the retracted posture to the yarn hooking posture, and then the pressing roller 46 is returned to the retracted posture, whereby the plurality of yarns Y are inserted into the plurality of grooves 47a of the yarn separating guide 47, respectively. That is, in the present embodiment, the roller swing device 53 that swings the pressing roller 46 and the guide swing device 72 that swings the yarn separating guide 47 are combined, and then, the relative movement device and the retracting device of the present invention are used in combination.

Next, a modification example in which various modifications are applied to the present embodiment will be described.

In the above embodiment, the pressing roller 46 is pressed against the plurality of yarns Y at the stage of switching the pressing roller 46 from the retracted posture to the pressing posture, but the present invention is not limited thereto. For example, the pressing roller 46 may be separated from the plurality of yarns Y at the stage of switching the pressing roller 46 from the retracted posture to the pressing posture, and then the pressing roller 46 may be pressed against the plurality of yarns Y in the middle thereof when sliding the pressing roller 46. In this case, while the pressing roller 46 is sliding, the pressing roller 46 presses the plurality of yarns to expand the interval between the plurality of yarns Y, and the pressing roller 46 is separated from the suction member 42.

In the above embodiment, the sliding member 45 is combined with the cylinder 51 that drives the sliding member 45, and then the roller sliding device and the guide sliding device of the present invention are used together, and the roller swinging device 53 that swings the pressing roller 46 and the guide swinging device 72 that swings the yarn separating guide 47 are combined, and then the relative movement device and the retreat device of the present invention are used together.

For example, sliding members may be provided for the pressing roller 46 and the yarn separating guide 47, respectively, and the two sliding members may be driven by different cylinders. In this case, a combination of a sliding member to which the pressing roller 46 is attached and a cylinder that drives the sliding member corresponds to the roller sliding device of the present invention. The guide sliding device of the present invention is obtained by combining a sliding member to which the yarn separating guide 47 is attached and an air cylinder for driving the sliding member.

In this case, the pressing roller 46 may be separated from the plurality of yarns Y by moving the sliding member to which the pressing roller 46 is attached toward the base end side in the 1 st direction from the state similar to fig. 11A and 11B, and the plurality of yarns Y may be inserted into the plurality of grooves 47a of the yarn separating guide 47. In this case, a sliding member to which the pressing roller 46 is attached is combined with a cylinder for moving the sliding member, and then functions as the relative movement device of the present invention.

In this case, the movable range of the slide member to which the pressing roller 46 is attached and the slide member to which the yarn separating guide 47 is attached may be extended toward the base end side in the 1 st direction as compared with the slide member 45 of the above embodiment, and the pressing roller 46 in the pressing posture and the yarn separating guide 47 in the yarn hooking posture may be moved toward the base end side in the 1 st direction as compared with the tip end portion of the suction member 42. In this case, the pressing roller 46 in the pressing posture and the yarn separating guide 47 in the yarn hooking posture are moved to the base end side in the 1 st direction with respect to the distal end portion of the suction member 42, whereby the pressing roller 46 and the yarn separating guide 47 can be retracted so as not to interfere with the yarn Y. In this case, the retracting device of the present invention also functions by combining two sliding members, to which the pressing roller 46 and the yarn separating guide are attached, with an air cylinder for moving the two sliding members.

In this case, the pressing roller 46 may be always parallel to the 3 rd direction, and therefore the roller swinging device 53 may not be provided, and the shaft 46a of the pressing roller 46 may be fixed to the slide member 45 in a posture parallel to the 3 rd direction. Also in this case, the split yarn guide 47 may also extend in the 3 rd direction at all times, and therefore the guide swinging means 72 may not be provided, and the split yarn guide 47 may be fixed to the slide member 45 in a posture extending in the 3 rd direction.

In the above embodiment, the pressing roller 46 is pressed against the plurality of yarns Y, and then the pressing roller 46 is moved toward the leading end side in the 1 st direction to separate the pressing roller 46 from the suction member 42. After the pressing roller 46 is switched from the retracted posture to the pressing posture to increase the interval between the plurality of yarns Y, the yarns Y may be inserted into the plurality of grooves 47a and hung on the fulcrum guide 21 without sliding the pressing roller 46.

In the above embodiment, when the plurality of yarns Y inserted into the plurality of grooves 47a are threaded onto the plurality of fulcrum guides 21, the slide member 45 is moved toward the base end side in the 1 st direction, and the yarn dividing guide 47 is moved toward the base end side in the 1 st direction. For example, the entire yarn hooking unit 33 may be moved toward the base end side in the 1 st direction by driving the robot arm 32, thereby moving the yarn separating guide 47 toward the base end side in the 1 st direction. In this case, the robot arm 32 corresponds to the guide sliding device of the present invention.

The roller slide device, the guide slide device, the relative movement device, and the retraction device may be realized by a configuration different from the above-described configuration. In this case, as the roller slide device, the guide slide device, the relative movement device, and the retraction device, four devices may be provided separately, or one device may double as two or more of the four devices.

Further, in the above-described embodiment, the thread take-up guide 43 is disposed below the suction member 42 in the 2 nd direction, and the cutter 44 is disposed below the thread take-up guide 43 in the 2 nd direction, but the thread take-up guide 43 and the cutter 44 may be disposed in a positional relationship opposite to this.

In the above embodiment, the cutter 44 is provided in the threading unit 33, but the cutter 44 may not be provided in the threading unit 33. For example, a cutter may be provided in the thread holding portion 11. In this case, too, when the plurality of yarns Y held by the yarn holding portion 11 are sucked by the suction member 42 and then cut by the cutter, the yarn portion on the yarn holding portion 11 side is sucked by the yarn holding portion 11, and the yarn portion on the suction member 42 side is sucked and held by the suction member.

In the above embodiment, the thread take-up guide 43 is provided in the thread hooking unit 33, but the thread take-up guide 43 may not be provided. If the position of the suction member 42 (the position of the suction member 42 in the state of fig. 7A) when delivering the plurality of yarns Y from the yarn holding portion 11 to the suction member 42 is not so far from the yarn holding portion 11, the interval between the plurality of yarns Y in the portion facing the suction member 42 does not become so large even without the yarn collecting guide 43. Therefore, even without the thread collecting guide 43, the suction member 42 can be driven to suck and hold the plurality of threads Y by the suction member.

In the above embodiment, the pressing roller 46 is a free roller rotatably supported by the shaft 46a, but the pressing roller 46 may be a driving roller rotatably driven by a motor. In this case, as shown in fig. 9A and 9B, by rotationally driving the pressing roller 46 when the pressing roller 46 presses the plurality of yarns Y, the pressing roller 46 can be rotated more stably than in the case where the pressing roller 46 is rotated only by the frictional force with the yarns Y. This can stably widen the interval between the portions of the plurality of yarns Y pressed by the pressing roller 46.

In the above embodiment, the automatic yarn threading device 4 winds the plurality of yarns Y around the

godet rollers

12 and 13 and threads the plurality of yarns Y on the plurality of fulcrum guides 21, but the present invention is not limited thereto. For example, the operator may wind a plurality of yarns Y around the

guide rollers

12 and 13 and then cause the automatic yarn hooking device 4 to hook the yarns to the plurality of fulcrum guides 21.

In the above embodiment, the drawing unit 3 has two

godets

12 and 13, but is not limited thereto. The drawing unit may have a plurality of godet rollers (heating rollers) having heaters inside, as described in japanese patent application laid-open No. 2014-5555, for example. In this case, the yarn can be threaded onto the plurality of godet rollers by the yarn threading robot.

In the above, the example of the yarn hooking to the fulcrum guide 21 serving as the fulcrum of the yarn Y when the yarn Y is traversed by the traverse guide 22 has been described, but the present invention is not limited thereto. The present invention can also be applied to wire-threading of a wire guide other than the fulcrum guide.

Claims

1. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a pressing roller for pressing the plurality of yarns sucked by the suction member to thereby enlarge the intervals between the plurality of yarns;

a yarn dividing guide having a plurality of grooves arranged in one direction, into which the plurality of yarns whose intervals are enlarged by the pressing roller are inserted, respectively; and

a relative movement device for relatively moving the pressing roller and the yarn dividing guide so that the plurality of yarns, the intervals of which are expanded by the pressing roller, are inserted into the plurality of grooves of the yarn dividing guide,

the above-mentioned attracting means extends along a predetermined 1 st direction,

the relative movement device includes:

a roller swinging device configured to swing the pressing roller around a swinging shaft extending along a 2 nd direction orthogonal to the 1 st direction and being offset from the suction member in a 3 rd direction orthogonal to both the 1 st direction and the 2 nd direction; and

and a guide swinging device for swinging the yarn dividing guide about the swinging shaft.

2. The automatic threading device of claim 1,

the yarn feeding device further includes a roller sliding device configured to slide the pressing roller pressed against the plurality of yarns in a direction orthogonal to an axial direction of the pressing roller, thereby separating the pressing roller from the suction member.

3. The automatic threading device according to claim 1 or 2,

the plurality of yarn guides are arranged in a predetermined arrangement direction and configured to be able to insert a yarn from one side in the arrangement direction,

the automatic yarn hooking device further includes a guide sliding device that slides the yarn dividing guide holding the plurality of yarns in a direction inclined with respect to the arrangement direction.

4. The automatic threading device according to claim 1 or 2,

the yarn cutting device further comprises a cutter for cutting the plurality of yarns.

5. The automatic threading device according to claim 1 or 2,

the yarn winding device is also provided with a yarn winding guide, and the plurality of yarns are hung on the yarn winding guide in a winding state.

6. The automatic threading device according to claim 1 or 2,

the press roller is further provided with a motor for driving the press roller to rotate.

7. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a retracting device for retracting the pressing roller and the yarn separating guide to a position where the pressing roller and the yarn separating guide do not interfere with the plurality of yarns,

the retraction device includes:

8. The automatic threading device of claim 7,

9. The automatic threading device of claim 7 or 8,

10. The automatic threading device of claim 7 or 8,

11. The automatic threading device of claim 7 or 8,

12. The automatic threading device of claim 7 or 8,

13. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a yarn dividing guide having a plurality of grooves arranged in one direction, into which the plurality of yarns whose intervals are enlarged by the pressing roller are inserted, respectively;

a retracting device for retracting the pressing roller and the yarn separating guide to a position where the pressing roller and the yarn separating guide do not interfere with the plurality of yarns; and

and a roller sliding device configured to slide the pressing roller pressed against the plurality of threads in a direction orthogonal to an axial direction of the pressing roller, thereby separating the pressing roller from the suction member.

14. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

15. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a retracting device for retracting the pressing roller and the yarn separating guide to a position where the pressing roller and the yarn separating guide do not interfere with the plurality of yarns;

a cutter configured to cut the plurality of threads; and

16. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a thread take-up guide to which the plurality of threads are hung in a taken-up state; and

17. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a motor for driving the pressing roller to rotate; and

18. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a roller sliding device for separating the pressing roller from the suction member by sliding the pressing roller pressed against the plurality of threads in a direction orthogonal to an axial direction of the pressing roller,

19. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;

a pressing roller for pressing the plurality of yarns sucked by the suction member to thereby enlarge the intervals between the plurality of yarns; and

a yarn dividing guide having a plurality of grooves arranged in one direction, into which the plurality of yarns whose intervals are widened by the pressing roller are inserted,

20. The automatic threading device of claim 19,

21. The automatic threading device of claim 19 or 20,

22. The automatic threading device of claim 19 or 20,

23. The automatic threading device of claim 19 or 20,

24. An automatic yarn hanging device for hanging a plurality of yarns on a plurality of yarn guides, respectively, comprising:

a suction member configured to suck the plurality of spun yarns;