Thread cutting suction device

Abstract

The present invention relates to a wire cutting and suction device that reliably cuts multiple wires. In the wire cutting and suction device (7), a moving mechanism (712) is capable of performing a first movement and a second movement. In the first movement, the wire pulling member (711) is moved so that the wire holding part (711h) moves to the left at a first speed to gather and guide multiple wires (Y) to the cutter (75). In the second movement, the wire pulling member (711) is moved so that the wire holding part (711h) moves at a second speed faster than the first speed to press the multiple wires (Y) gathered and guided to the cutter (75) in the first movement against the cutter (75) and cut them.

Description

Technical Field

[0001] This invention relates to a wire cutting and attracting device for cutting and attracting multiple wires. Background Technology

[0002] Patent Document 1 discloses a wire cutting and attracting device comprising: a cutter capable of moving along the arrangement direction of multiple wires; and a attracting device capable of moving along the arrangement direction in the same way as the cutter, and attracting the wires cut by the cutter. In the device of Patent Document 1, by moving the cutter along the arrangement direction, multiple wires are cut one at a time sequentially.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2012-180610 In the device of Patent Document 1, when the cutter moves along the arrangement direction (parallel direction) to cut the thread, pressure is applied to the thread by the cutter, so that sometimes the thread moves in a way that escapes from the cutter, and thus the thread cannot be cut. Summary of the Invention

[0004] The purpose of this invention is to provide a wire cutting suction device that can reliably cut multiple wires.

[0005] The thread cutting and attracting device of the present invention is for cutting and attracting multiple threads arranged in a parallel direction, characterized by comprising: a thread channel limiting guide having a thread guiding portion for guiding the multiple threads in the parallel direction; a cutter disposed relative to the thread guiding portion on one side of the parallel direction for cutting the multiple threads; an attracting portion for attracting the multiple threads cut by the cutter; and a thread pulling member having a thread holding portion for holding the multiple threads, for holding the multiple threads guided by the thread channel limiting guide by the thread holding portion. The wires are gathered and pressed against the cutter; and a moving mechanism is used to move the wire-pulling component, the moving mechanism being capable of performing a first movement and a second movement. In the first movement, the wire-pulling component is moved so that the wire holding portion moves at a first speed from the other direction of the parallel directions to gather the multiple wires and guide them toward the cutter. In the second movement, the wire-pulling component is moved so that the wire holding portion moves at a second speed faster than the first speed, pressing the multiple wires gathered and guided to the cutter in the first movement against the cutter and cutting them.

[0006] According to the present invention, since the structure cuts the wires by pressing multiple wires gathered by the wire-pulling member against the cutter instead of the cutter moving in a parallel direction, the problem of the wires moving due to the pressure of the cutter and thus failing to be cut is avoided. Furthermore, since the wire holding part moves at a first speed (low speed) during the first movement to gather multiple wires and guide them towards the cutter, the wire channel prevents the multiple wires guided by the wire guide from breaking when the wire-pulling member gathers towards the cutter, allowing multiple wires to be transported to the cutter position and ultimately attracted by the suction part. Additionally, the multiple wires gathered and guided to the cutter during the first movement are pressed against the cutter by the wire holding part moving at a second speed (high speed) during the second movement and cut. Therefore, multiple wires can be reliably cut.

[0007] Preferably, the cutter is V-shaped with a groove, and the moving mechanism moves the wire-drawing component so that the wire holding portion approaches the groove.

[0008] According to this structure, the movement of the wire held by the wire holding part and guided to the groove part is restricted, and it is reliably cut by the cutter.

[0009] Preferably, the cutter includes a first blade having a first cutting edge and a second blade having a second cutting edge and being arranged overlapping the first blade in the parallel direction, wherein the first cutting edge and the second cutting edge are separated from each other in the parallel direction at least in portions corresponding to the groove.

[0010] According to this structure, the wire held by the wire holding part and guided to the groove part is pressed into the gap between the first cutting edge and the second cutting edge and subjected to shearing force, thereby being reliably cut.

[0011] Preferably, the moving mechanism rotates the wire-drawing component during the second movement.

[0012] According to this structure, by rotating the wire-drawing component, it is easy to achieve a situation where the second speed is faster than the first speed. Attached Figure Description

[0013] Figure 1 This is a side view of a spinning production apparatus including the filament cutting and attraction device according to the first embodiment of the present invention.

[0014] Figure 2 yes Figure 1 The main view of the spinning device and the yarn cutting and suction device included in the spinning production equipment.

[0015] Figure 3 This is a longitudinal sectional view of the wire cutting and suction device.

[0016] Figure 4 Is Figure 3 The middle view is a side view of the cutter included in the wire cutting suction device, viewed from the right.

[0017] Figure 5 It is along Figure 4 A cross-sectional view of the VV line.

[0018] Figure 6 This is a plan view of the wire cutting and suction device.

[0019] Figure 7 This refers to the operation of the wire-pulling component included in the wire-cutting suction device. Figure 4 The corresponding side view.

[0020] Figure 8 It represents the trajectory of the wire holding part of the wire drawing component. Figure 3 The corresponding longitudinal section view.

[0021] Figure 9 This is a plan view of the thread cutting and suction device according to the second embodiment of the present invention.

[0022] Explanation of symbols 7, 207: Thread cutting and suction device; 71, 271: Thread pulling guide; 711: Thread pulling component; 711h: Thread holding part; 712, 2712: Moving mechanism; 72: Thread channel limiting guide; 72a: Slit (thread guiding part); 75: Cutter; 751: First blade; 751c: First blade part; 752: Second blade; 752c: Second blade part; 79: Suction part; C: Groove part; Y: Thread. Detailed Implementation

[0023] <First Implementation Method> First, refer to Figure 1 The spinning production equipment 1, which includes the filament cutting and suction device 7 of the first embodiment of the present invention, will be described.

[0024] In the following description, the vertical direction is defined based on the premise that the spinning production equipment 1 is set up for use. Furthermore, the vertical direction will be... Figure 1 The left side is defined as the front of spinning production equipment 1, and will Figure 1 The right side is defined as the rear of the spinning production equipment 1, and the left and right directions are defined when viewed from the front of the spinning production equipment 1.

[0025] like Figure 1 As shown, the spinning production equipment 1 includes a spinning device 2 and a spinning traction device 3.

[0026] Spinning device 2 is a device that spins molten polymer into multiple filaments Y downwards, including multiple spinning units 20 arranged in the left-right direction (see reference). Figure 2 ).

[0027] The spinning traction device 3 is a device for drawing the multiple filaments Y spun from the spinning device 2, such as... Figure 1 As shown, it includes a wire cutting and suction device 7, guide rollers 8 and 9, and a winding device 10.

[0028] The yarn cutting and attracting device 7 is a device that cuts and attracts multiple yarns Y arranged in the left-right direction and traveling from the spinning device 2 toward the guide rollers 8 and 9 and the winding device 10. It operates, for example, in cases where any one of the multiple yarns Y in the winding device 10, located downstream of the yarn traveling direction (the traveling direction of the yarn Y in the spinning traction device 3) relative to the yarn cutting and attracting device 7, experiences an abnormality such as yarn breakage. Figure 2 As shown, the wire cutting and suction device 7 includes a wire guide 71, a wire channel limiting guide 72, a cutter 75, and a suction unit 79. The specific structure of the wire cutting and suction device 7 will be described in detail later.

[0029] Guide rollers 8 and 9 are positioned downstream of the wire cutting and suction device 7 in the direction of wire travel. Multiple wires Y, cut by the cutter 75 and attracted by the suction unit 79, are then attracted and connected by a suction gun (not shown) during the subsequent wire winding operation. The multiple wires Y connected by the suction gun are then wound onto guide rollers 8 and 9, and subsequently hooked onto the winding device 10.

[0030] The winding device 10 includes two bobbin supports 11, a machine body 12, a turntable 13 mounted on the machine body 12, a support frame 14, a guide support 15, multiple support guides 16, multiple traverse devices 17, and a contact roller 18.

[0031] The two bobbin supports 11 are shaft components extending in the front-to-back direction, with their rear ends cantilevered by the turntable 13. Each bobbin support 11 can hold multiple bobbins B arranged in the front-to-back direction. For example, from the corresponding spinning unit 20 of the spinning device 2 (see reference 13) Figure 2 The eight spun threads Y are wound into eight bobbins B.

[0032] The support frame 14 extends in a front-to-back direction, roughly parallel to the tube support 11. The rear end of the support frame 14 is cantilevered by the body 12.

[0033] The guide wire support 15 extends in the front-to-back direction above the support frame 14.

[0034] Multiple wire guide supports 16 are disposed on the wire guide support body 15. The multiple wire guide supports 16 are arranged in the front-to-back direction corresponding to multiple bobbins B.

[0035] Multiple traverse devices 17 are disposed on the support frame 14. The multiple traverse devices 17 are arranged in the front-to-back direction in correspondence with multiple bobbins B and multiple wire guides 16. Each traverse device 17 causes the wire Y to traverse in the front-to-back direction with the corresponding wire guide 16 as the center.

[0036] The contact roller 18 is rotatably supported on the support frame 14.

[0037] The winding device 10 begins to wind multiple spools B held by the upper spool support 11 of the two spool supports 11, which are traversed by multiple traversing devices 17. During the winding of the spools Y, by raising and lowering the contact roller 18 and / or rotating the turntable 13, multiple rolls P can be formed while accommodating the increase in the diameter of the rolls P formed by winding the spools Y into the spools B.

[0038] Next, refer to Figures 3-8 The structure of the wire cutting and suction device 7 will be described in detail.

[0039] For reference Figure 2 The described wire cutting and suction device 7 includes a wire guide 71, a wire channel limiting guide 72, a cutter 75, and a suction part 79.

[0040] like Figure 3 As shown, the thread channel limiting guide 72 extends in the left-right direction to guide multiple threads Y. The left-right direction is the direction in which the multiple threads Y are arranged, corresponding to the "parallel direction" of this invention. The thread channel limiting guide 72 has multiple slits 72a arranged in the left-right direction. The multiple slits 72a are as follows: Figure 3 As shown, the guide wire 72 extends vertically through the wire channel, and as... Figure 6 It opens rearward as shown. A thread Y is inserted vertically through each of the plurality of slits 72a. This restricts the lateral movement of the plurality of threads Y, stabilizing their travel. The plurality of slits 72a correspond to the "thread guide" of the present invention, which guides the plurality of threads Y in a lateral arrangement.

[0041] like Figure 2 As shown, the yarn path limiting guide 72 also has the function of limiting the multiple yarns Y conveyed by the arrangement spacing of the spinning units 20 of the spinning device 2 to a spacing narrower than the arrangement spacing of the spinning units 20. The multiple yarns Y guided by the yarn path limiting guide 72 are wound on the guide rollers 8 and 9 at the spacing limited by the yarn path limiting guide 72.

[0042] like Figure 3As shown, the suction unit 79 includes an outer cylinder 791, an inner cylinder 792, and a suction source (not shown). The outer cylinder 791 and inner cylinder 792 are cylindrical with the same central axis along the left-right direction. The inner cylinder 792 is fixed relative to the outer cylinder 791. The inner cylinder 792 has an outer diameter smaller than the inner diameter of the outer cylinder 791, and has a portion disposed inside the outer cylinder 791, a protruding portion protruding to the right from the right end of the outer cylinder 791, and an opening at the right end of the protruding portion. The suction source is connected to the inner cylinder 792 via a solenoid valve. When the solenoid valve is open, the suction force of the suction source is transmitted to the inner cylinder 792, generating a leftward suction force inside the inner cylinder 792. The suction unit 79 is disposed on the left side relative to the plurality of threads Y, and the inner cylinder 792 is configured such that its opening faces the portion of the plurality of threads Y located upstream of the thread channel restrictor 72 in the thread travel direction. The multiple filaments Y cut by the cutter 75 are drawn into the inner cylinder 792 from the opening of the inner cylinder 792.

[0043] like Figure 3 As shown, the cutter 75 is positioned to the left of the multiple slits 72a of the yarn channel restrictor 72. The left side corresponds to the "side-by-side direction" of this invention. Furthermore, the cutter 75 is located upstream of the yarn channel restrictor 72 and downstream of the opening of the inner cylinder 792 of the suction unit 79 in the yarn travel direction. Based on the positional relationship between the opening of the inner cylinder 792 of the suction unit 79 and the cutter 75, the portion of the multiple yarns Y cut by the cutter 75 that is upstream of the cutter 75 in the yarn travel direction (the portion spun from the spinning device 2) is attracted by the inner cylinder 792 of the suction unit 79.

[0044] The cutter 75 includes a first blade 751, a second blade 752, a guide member 753, and a retaining member 754. The retaining member 754 holds the first blade 751, the second blade 752, and the guide member 753. The retaining member 754 is mounted on the right end of the inner cylinder 792 via a mounting member 77. The mounting member 77 extends downward from the lower surface of the right end of the inner cylinder 792. The cutter 75 is configured such that the front ends of the first blade 751 and the second blade 752 face diagonally upward to the right.

[0045] The first blade 751 and the second blade 752 are arranged overlappingly in the left-right and up-down directions. The first blade 751 is positioned above the second blade 752 (see reference). Figure 3 And located on the left (refer to) Figure 4 The first cutting edge 751c, which is the front end of the first cutting edge 751, and the second cutting edge 752c, which is the front end of the second cutting edge 752, are separated by a gap D in the left-right direction and the up-down direction (see reference). Figure 5 They are separated from each other.

[0046] like Figure 4As shown, the first cutting edge 751 includes a first cutting edge portion 751c and a first base portion 751b connected to the first cutting edge portion 751c. The second cutting edge 752 includes a second cutting edge portion 752c and a second base portion 752b connected to the second cutting edge portion 752c.

[0047] The ridge line 751a of the first blade 751c intersects with the ridge line 752a of the second blade 752c. The cutter 75, which is composed of the first blade 751c and the second blade 752c, is V-shaped with a groove C that corresponds to the intersection of the ridge lines 751a and 752a.

[0048] When the thread cutting and suction device 7 operates, multiple threads Y are guided to the groove C by the thread guide 71. Furthermore, as... Figure 5 As shown, multiple filaments Y are pressed into the gap D between the first cutting edge 751c and the second cutting edge 752c and are subjected to shearing force, thereby being cut.

[0049] The wire guide 71 is used to gather multiple wires Y, which are guided by the wire channel restrictor 72, and guide them towards the cutter 75, such as... Figure 6 As shown, it includes a wire-pulling component 711 and a moving mechanism 712 for moving the wire-pulling component 711. The wire-pulling guide 71 is located upstream of the wire channel limiting guide 72 and downstream of the cutter 75 in the wire travel direction.

[0050] The moving mechanism 712 includes a cylinder block 712s, a piston rod 712r, a drive source (not shown), and pins 712p and 712q (see reference). Figure 7 The cylinder body 712s is a cylindrical component with a central axis along the left-right direction. The piston rod 712r has a axial portion along the left-right direction and is slidably disposed within the cylinder body 712s. The piston rod 712r moves to the left or right by being driven by a drive source.

[0051] The wire-drawing component 711 has a base end supported on the shaft portion of the piston rod 712r and a front end provided with a wire holding portion 711h. The wire holding portion 711h is a portion that holds multiple wires Y and is composed of a recess. The base end of the wire-drawing component 711 is supported on the right end of the shaft portion of the piston rod 712r that protrudes from the cylinder body 712s, in a manner that allows it to rotate about an axis in the left-right direction (see reference). Figure 7 ).

[0052] Before the wire cutting and suction device 7 is activated, the wire drawing component 711 is in a state of... Figure 6The initial position P1 is shown by the dashed line. In the initial position P1, the wire-pulling component 711 is located above the portion to the right of the plurality of slits 72a in the wire channel limiting guide 72. The pin 712q is configured to contact the wire-pulling component 711 in the initial position P1. In the initial position P1, the wire-pulling component 711 is driven relative to the axial portion of the piston rod 712r by contact with the pin 712q. Figure 7 The wire-drawing component 711 rotates counterclockwise. Therefore, the wire-drawing component 711 is in a position... Figure 7 As shown by the double-dotted line, the center of the thread holding part 711h is at position H1.

[0053] When the wire cutting and suction device 7 operates, the piston rod 712r moves to the left by the drive source, thereby moving the wire-pulling component 711 to the left. At this time, the wire-pulling component 711, at a position separated upwards by a certain distance from the upper surface of the wire channel restrictor 72, moves from right to left in the left-right direction, that is, "from the other direction of the parallel direction," from... Figure 6 The initial position P1, indicated by the dashed line, is reached via... Figure 6 The collection completion location P2 is indicated by the single-dot dashed line. Figure 6 The cut-off position P3, indicated by the double-dotted line, is reached. Figure 6 The endpoint P4 is indicated by the solid line in the middle.

[0054] From the initial position P1 to the collection completion position P2, the wire holding part 711h moves in a manner that overlaps with the plurality of slits 72a in the vertical direction. At the cutting position P3, the wire holding part 711h overlaps with the groove C of the cutter 75 in the vertical direction. At the end position P4, the wire holding part 711h is located to the left of the groove C of the cutter 75.

[0055] The movement of the wire-pulling member 711 from the initial position P1 via the collection completion position P2 to the cutting position P3 corresponds to the "first movement" of the present invention, and the movement of the wire-pulling member 711 from the cutting position P3 to the end position P4 corresponds to the "second movement" of the present invention. The multiple wires Y gathered in the first movement are pressed against the groove C of the cutter 75 and cut in the second movement.

[0056] During the movement from the initial position P1 to the collection completion position P2 in the "first movement", the wire drawing component 711 moves to the left along a plane orthogonal to the vertical direction while holding multiple wires Y one at a time in the wire holding part 711h.

[0057] During the movement from the collection completion position P2 to the cutting position P3 in the "first movement", the wire pulling component 711 moves to the left (see reference) with the wire holding part 711h approaching the groove part C. Figure 8 )move.

[0058] In the "first movement", the moving mechanism 712 causes the wire drawing member 711 to move at a "first speed". In the "first movement", the wire holding part 711h of the wire drawing member 711 moves from right to left in the left-right direction at a "first speed", causing multiple wires Y to gather and be guided towards the cutter 75.

[0059] In the "second movement", the wire drawing component 711 moves to the left, rear, and downward in such a way that the wire holding part 711h leaves the groove part C (see reference). Figure 8 The wire drawing component 711 moves from the cutting position P3 to the end position P4, during which multiple wires Y are cut.

[0060] In the "second movement", the moving mechanism 712 causes the wire-drawing member 711 to rotate as detailed later. In the "second movement", the wire holding part 711h of the wire-drawing member 711 moves at a "second speed" that is faster than the first speed, and presses the multiple wires Y that were gathered and guided to the cutter 75 in the "first movement" against the cutter 75 and cuts them.

[0061] exist Figure 7 In the diagram, the wire-pulling component 711 at the endpoint P4 is represented by a solid line, while the wire-pulling components 711 at the initial position P1, the collection completion position P2, and the cutting position P3 are represented by double-dotted lines. Additionally, in... Figures 6-8 In the figures, H1 represents the center position of the wire holding part 711h when the wire pulling component 711 is in the initial position P1, H2 represents the center position of the wire holding part 711h when the wire pulling component 711 is in the collection completion position P2, H3 represents the center position of the wire holding part 711h when the wire pulling component 711 is in the cutting position P3, and H4 represents the center position of the wire holding part 711h when the wire pulling component 711 is in the end position P4. Positions H1, H2, and H3 are consistent in the front-back direction and the up-down direction. Position H4 is located behind and below positions H1, H2, and H3.

[0062] In its initial position P1, the wire-drawing component 711 contacts the pin 712q and moves relative to the axial portion of the piston rod 712r. Figure 7 It rotates counterclockwise. As a result, during the first movement, the center of the thread holding part 711h is at the same position in the front-back direction at the initial position P1, the position H2 at the collection completion position P2, and the position H3 at the cutting position P3.

[0063] A pin 712p is disposed in the area traversed by the wire-drawing component 711 during its movement from the cut-off position P3 to the end position P4. During the second movement, the wire-drawing component 711 contacts the pin 712p and moves relative to the axis of the piston rod 712r. Figure 7The center rotates clockwise. As a result, the center of the thread holding section 711h moves from position H3 to position H4 (see reference). Figures 6-8 ).

[0064] Thus, during the "second movement," before and after the multiple wires Y are pressed into the groove C of the cutter 75, the moving mechanism 712 causes the wire-drawing member 711 to rotate rearward and downward. The left-right speeds of the wire-drawing member 711 and its included wire-holding portion 711h during the "first movement" are determined by the driving force of the drive source. On the other hand, the speed of the wire-holding portion 711h during the "second movement" is the speed obtained by adding the left-right speed vector to the rotational speed vector. Therefore, the moving speed (second speed) of the wire-holding portion 711h during the second movement is faster than the moving speed (first speed) of the wire-holding portion 711h during the first movement. Furthermore, the second speed can be controlled by pins 712p and 712q (see reference). Figure 6 as well as Figure 7 Adjustments can be made based on configurations, etc.

[0065] As described above, according to this embodiment, instead of a structure where the cutter 75 moves in the left-right direction to cut the thread Y, a structure where multiple threads Y gathered by the thread-pulling member 711 are pressed against the cutter 75 to cut them is used. Therefore, the problem of the thread Y moving due to the pressing force of the cutter 75 and thus failing to cut the thread Y is avoided. Furthermore, since the thread holding part 711h moves at a low first speed during the first movement to gather multiple threads Y and guide them toward the cutter 75, the multiple threads Y guided by the thread guide 72 in the thread channel restriction will not break when the thread-pulling member 711 gathers toward the cutter 75. This allows multiple threads Y to be transported to the position of the cutter 75 and finally attracted by the suction part 79. Moreover, the multiple threads Y gathered and guided to the cutter 75 during the "first movement" are pressed against the cutter 75 and cut by the thread holding part 711h, which moves at a second speed (high speed) during the "second movement." Thus, multiple threads Y can be reliably cut.

[0066] The cutter 75 is V-shaped with a groove C. The moving mechanism 712 moves the wire-drawing member 711 so that the wire holding part 711h approaches the groove C (see reference). Figure 6 According to this structure, the movement of the thread Y, which is held by the thread holding part 711h and guided to the groove part C, is restricted, and it is reliably cut by the cutter 75.

[0067] The cutter 75 includes a first blade 751 having a first cutting edge 751c, and a second blade 752 having a second cutting edge 752c and being arranged overlapping the first blade 751 in the left-right direction (see reference). Figure 4The first cutting edge 751c and the second cutting edge 752c are separated from each other in the left-right direction at least in the portion corresponding to the groove C (see reference). Figure 5 According to this structure, the thread Y, which is held by the thread holding part 711h and guided to the groove part C, is pressed into the gap D between the first cutting edge 751c and the second cutting edge 752c and subjected to shearing force, thereby being reliably cut.

[0068] The moving mechanism 712 rotates the wire-drawing component 711 during the "second movement" (see reference). Figure 7 According to this structure, by rotating the wire-drawing component 711, it is easy to achieve a situation where the second speed is faster than the first speed.

[0069] <Second Implementation Method> Next, refer to Figure 9 The thread cutting and suction device 207 of the second embodiment of the present invention will be described.

[0070] The wire cutting and suction device 207 is different from the structure of the wire guide 271 in the first embodiment, but the other structures are the same as in the first embodiment.

[0071] In the wire guide 271, the moving mechanism 2712, in addition to the cylinder 712s, piston rod 712r, and drive source (not shown) that are the same as in the first embodiment, also includes a fixing part 271a, a spring 271s, and a pin 271p, but does not include pins 712p and 712q (see reference). Figure 7 ).

[0072] The central portion of the wire-drawing component 711 is supported on the right end of the shaft portion of the piston rod 712r in a manner that allows it to rotate about an axis in the vertical direction. The fixing portion 271a is fixed to the shaft portion of the piston rod 712r at a position to the left of the right end where the wire-drawing component 711 is supported.

[0073] Spring 271s connects the fixing part 271a to the wire-drawing component 711, and moves the wire-drawing component 711 towards... Figure 9 Apply force in a clockwise direction.

[0074] When the wire cutting and suction device 207 is activated, the piston rod 712r moves to the left by the drive source, thereby moving the wire-pulling component 711 to the left. At this time, the wire-pulling component 711, which is positioned a certain distance above the upper surface of the wire channel restrictor 72, moves from right to left in the left-right direction, that is, "from the opposite direction of the parallel directions," from... Figure 9 The initial position P1, shown by the dashed line, is reached via the collection completion position and the cutting position (illustration omitted). Figure 9 The endpoint P4 is indicated by the solid line in the middle.

[0075] In this embodiment, similarly to the first embodiment, the multiple threads Y, which are gathered and guided to the cutter 75 during the "first movement" from the initial position P1 to the cutting position, are pressed against the groove C of the cutter 75 and cut during the "second movement" from the cutting position to the end position P4. The pin 271p is configured to contact the wire-pulling member 711 during the "second movement".

[0076] During the "first movement", the wire-drawing component 711 moves to the left along a plane orthogonal to the vertical direction, while holding multiple wires Y one at a time in the wire holding part 711h. During the "first movement", the moving mechanism 2712 moves the wire-drawing component 711 and the wire holding part 711h it includes at a "first speed".

[0077] In the "second movement," the wire-drawing component 711 overcomes the force applied by the spring 271s by contacting the pin 271p, and moves relative to the axial portion of the piston rod 712r. Figure 9 The moving mechanism 2712 rotates counterclockwise. In the "second movement", the wire holding part 711h included in the wire drawing member 711 moves at a "second speed" that is faster than the first speed.

[0078] Thus, during the "second movement," the moving mechanism 2712 rotates the wire-drawing member 711 before and after the multiple wires Y are pressed into the groove C of the cutter 75. The left-right speeds of the wire-drawing member 711 and its included wire-holding portion 711h during the "first movement" are determined by the driving force of the drive source. On the other hand, the speed of the wire-holding portion 711h during the "second movement" is the speed resulting from the conversion of the linear motion of the piston rod 712r to the left into a rotational motion centered on the axis of the piston rod 712r. Therefore, the moving speed (second speed) of the wire-holding portion 711h during the second movement is faster than the moving speed (first speed) of the wire-holding portion 711h during the first movement. Furthermore, the second speed can be adjusted by the configuration of the pin 271p, the applied force of the spring 271s, etc.

[0079] As described above, according to this embodiment, although the structure of the wire guide differs from that of the first embodiment, the same effects can be achieved. For example, since the structure of cutting the wire Y is not such that the cutter 75 moves in the left-right direction, but rather that multiple wires Y gathered by the wire guide 711 are pressed against the cutter 75 to cut them, the problem of the wire Y moving due to the pressing force of the cutter 75 and thus failing to cut the wire Y is avoided. Furthermore, since the wire holding part 711h moves at a low first speed during the first movement to gather and guide multiple wires Y to the cutter 75, the multiple wires Y guided by the wire guide 72 in the wire channel restriction will not break when the wire guide 711 gathers towards the cutter 75, and multiple wires Y can be transported to the position of the cutter 75, and finally attracted by the suction part 79. Furthermore, the multiple threads Y that are gathered and guided to the cutter 75 in the "first movement" are pressed against the cutter 75 and cut by the thread holding part 711h that moves at a second speed (high speed) in the "second movement". Thus, multiple threads Y can be reliably cut.

[0080] <Variation Example> The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various design changes can be made within the scope of the patent claims.

[0081] For example, the wire-drawing component in the above embodiment is composed of a single component, but it can also be composed of multiple components. When the wire-drawing component is composed of multiple components, multiple wires can be interleaved between the multiple components during the first movement.

[0082] In the above embodiment, the first and second cutting edges are separated from each other in the parallel direction throughout the entire region of each part, but it is sufficient that they are separated from each other in the parallel direction at least in the part corresponding to the groove.

[0083] The cutter is not limited to having a first and a second blade; it can also be composed of a single V-shaped blade. Furthermore, the cutter is not limited to a V-shape; it can also have a straight blade.

[0084] The first movement may also include a directional component other than the directional component from the other direction of the parallel directions. For example, in the above embodiment, the first movement may cause the thread holding part to move in a direction that includes not only the leftward component from the other direction of the parallel directions, but also components in the up-down direction and / or the front-back direction.

[0085] The second movement can include any directional component as long as it can press multiple threads against the cutter to cut them. For example, in the above embodiment, when the blade of the cutter is facing downward to the right, the second movement can move the thread holding portion in a direction that includes both leftward and upward components.

[0086] The moving mechanism is not limited to rotating the wire-drawing component during the second movement. For example, the moving mechanism may also move the wire-holding portion in a parallel direction, or in a direction including a component of the parallel direction and a component of the direction intersecting the parallel direction, without rotating the wire-drawing component during the second movement.

[0087] In the above embodiments, the second speed is set to a speed faster than the first speed through the mechanical structure of the moving mechanism, but it is not limited to this. For example, the second speed can also be set to a speed faster than the first speed through electrical control of the rotational speed of the motor constituting the drive source.

Claims

1. A wire cutting and attracting device for cutting and attracting multiple wires arranged in parallel directions, characterized in that, have: The thread channel limiting guide has a thread guide portion that guides the plurality of threads in an arrangement in the parallel direction; A cutter, disposed on one side of the parallel direction relative to the thread guide, is used to cut the plurality of threads; The suction section attracts the plurality of filaments cut by the cutter; The wire-pulling component has a wire-holding portion for holding the plurality of wires, which is used to hold and gather the plurality of wires guided by the wire-channel limiting guide by the wire-holding portion and press them against the cutter. as well as The moving mechanism causes the wire-drawing component to move. The moving mechanism is capable of performing a first movement and a second movement. In the first movement, the wire-pulling component is moved so that the wire holding portion moves at a first speed from the other direction of the parallel directions to gather and guide the multiple wires to the cutter. In the second movement, the wire-pulling component is moved so that the wire holding portion moves at a second speed faster than the first speed to press the multiple wires gathered and guided to the cutter in the first movement against the cutter and cut them.

2. The thread cutting and suction device according to claim 1, characterized in that, The cutter is V-shaped with a groove. The moving mechanism moves the wire-drawing component so that the wire holding portion approaches the groove portion.

3. The wire cutting and suction device according to claim 2, characterized in that, The cutter includes a first blade having a first cutting edge and a second blade having a second cutting edge and being configured to overlap with the first blade in the parallel direction. The first cutting edge and the second cutting edge are separated from each other at least in the parallel direction at the portions corresponding to the groove.

4. The thread cutting and suction device according to any one of claims 1 to 3, characterized in that, The moving mechanism causes the wire-drawing component to rotate during the second movement.

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