Device and method for disengaging a yarn from a tape guide

Abstract

The application discloses a device for separating yarn from an arrow belt guide rail and a method for separating yarn from an arrow belt guide rail, and is used for an automatic threading machine. The device for separating yarn from an arrow belt guide rail comprises a mounting seat, a driving piece and a pawl assembly. The mounting seat is fixed to the guide rail. The driving piece is fixed to the mounting seat. The pawl assembly is installed on the mounting seat and comprises a pawl. The driving piece can drive the pawl to move. The pawl has an initial position and a target position. The pawl can pass through a yarn taking gap from the initial position to separate the yarn from the arrow belt, and is moved to the target position. The yarn is fed into a collecting device at the target position. The pawl can also return to the initial position from the target position. The moving track of the end of the pawl is a closed curve. When the pawl is at the target position, the end of the pawl is located at the lowest point of the closed curve. The device for separating yarn from an arrow belt guide rail according to the embodiment of the application can reduce the running time of threading and improve the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automatic warp drawing-in, in particular to a device for making yarn escape from an arrow tape guide rail and a method for making yarn escape from the arrow tape guide rail. Background Art

[0002] In an automatic warp drawing-in system, a quiver reciprocates within a quiver guide rail, picking up the yarn. Simultaneously, a pusher mechanism, which rotates in a semicircular motion, separates the yarn from the quiver and delivers it to a collection device. However, with this pusher mechanism, while the pusher delivers the yarn to the collection device and then returns to its original position along the same path, the quiver cannot immediately move to pick up the next yarn. Otherwise, the pusher would interfere with the quiver as it returns to its original position. Consequently, the quiver must wait for the pusher to return to its original position before moving to pick up the next yarn, significantly increasing the drawing-in process and reducing production efficiency. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a device for making yarns escape from the arrow tape guide rail, which can reduce the running time of the warp drawing and improve production efficiency.

[0004] The present invention also provides a method for making yarn separate from the arrow tape guide rail by using the device for making yarn separate from the arrow tape guide rail.

[0005] According to an embodiment of the present invention, a device for making yarns escape from an quiver guide rail is used in an automatic warp drawing-in machine, the automatic warp drawing-in machine comprising a guide rail, an quiver and a collecting device, the guide rail being provided with a chute and a yarn taking notch, the chute having an origin position and a yarn hooking position, the yarn taking notch being located between the origin position and the yarn hooking position and being connected to the chute, the quiver being provided in the chute and being capable of reciprocating between the origin position and the yarn hooking position, the quiver being capable of hooking yarns at the yarn hooking position, the device for making yarns escape from the quiver guide rail comprising a mounting seat, a driving member and a pusher claw assembly, the mounting seat being fixed to the guide rail; The driving member is fixed to the mounting seat; the pusher claw assembly is mounted on the mounting seat, the pusher claw assembly includes a pusher claw, the driving member can drive the pusher claw to move, the pusher claw has an initial position and a target position, the pusher claw can pass through the yarn taking gap from the initial position to separate the yarn from the arrow belt, and move to the target position, and feed the yarn into the collecting device at the target position, the pusher claw can also return to the initial position from the target position, the movement trajectory of the end of the pusher claw is a closed curve, and when the pusher claw is at the target position, the end of the pusher claw is located at the lowest point of the closed curve.

[0006] The device for removing yarn from a quiver guide rail according to an embodiment of the present invention has at least the following beneficial effects: a pusher assembly includes a pusher, a driving member can drive the pusher to move, the pusher having an initial position and a target position, the pusher can pass through the yarn removal notch from the initial position to separate the yarn from the quiver, and move to the target position, where the yarn is fed into a collecting device, and the pusher can also return from the target position to the initial position, the movement trajectory of the pusher's end being a closed curve, and when the pusher is at the target position, the pusher's end is at the lowest point of the closed curve. Therefore, when the pusher moves from the target position to the initial position, it does not return along the original path, and during the return process, the pusher does not interfere with the quiver. Therefore, while the pusher separates the yarn from the quiver, the quiver can move to the yarn hooking position to hook the next yarn, thereby reducing the threading time and improving production efficiency.

[0007] According to an embodiment of the present invention, when the pusher claw moves from the initial position to the target position, the speed of the end of the pusher claw changes from slow to fast and then from fast to slow.

[0008] According to an embodiment of the present invention, the average speed of the end of the pusher finger when it moves from the initial position to the target position is V1, and the average speed of the end of the pusher finger when it returns from the target position to the initial position is V2, satisfying: V1<V2.

[0009] According to one embodiment of the present invention, the pusher dog assembly further includes a first connecting rod, a second connecting rod and a third connecting rod, the length of the first connecting rod is smaller than the length of the second connecting rod, one end of the first connecting rod and one end of the second connecting rod are respectively rotatably connected to the two ends of the third connecting rod, the other end of the first connecting rod is drivingly connected to the driving member, and the other end of the second connecting rod is rotatably connected to the mounting seat to form a crank rocker mechanism, and the pusher dog is connected to one end of the third connecting rod connected to the first connecting rod.

[0010] According to an embodiment of the present invention, the pusher claw includes a first rod portion and a second rod portion at an angle to each other, the first rod portion is connected to the third connecting rod, and the angle between the first rod portion and the second rod portion can abut against the yarn.

[0011] According to an embodiment of the present invention, the angle between the first rod portion and the horizontal plane is α, the angle between the second rod portion and the horizontal plane is β, and when the pusher claw is at the initial position, the following conditions are satisfied: α>90°, β<20°; when the pusher claw is at the target position, the following conditions are satisfied: α=0°, β>70°.

[0012] According to an embodiment of the present invention, the width of the first rod portion gradually decreases in a direction away from the third connecting rod; and the width of the second rod portion gradually decreases in a direction away from the first rod portion.

[0013] According to one embodiment of the present invention, the device for making the yarn escape from the arrow tape guide rail further comprises a first guide member, which is mounted on a side of the mounting seat close to the pusher claw.

[0014] According to one embodiment of the present invention, the first guide member is provided with a first arcuate wall surface, and the first arcuate wall surface can cooperate with the yarn guide.

[0015] According to an embodiment of the present invention, a method for making yarn separate from an arrow-belt guide rail is provided using a device for making yarn separate from an arrow-belt guide rail according to an embodiment of the present invention. The method for making yarn separate from an arrow-belt guide rail comprises: the arrow-belt moves from the origin position to the yarn hooking position to hook the yarn, and moves back to the origin position with the yarn; the driving member drives the pusher to move, and the pusher moves from the initial position and passes through the yarn taking gap to separate the yarn from the arrow-belt and send the yarn to the collecting device; the driving member continues to drive the pusher to move, so that the pusher returns to the initial position and waits for the next yarn to be separated; while the pusher separates the yarn from the arrow-belt, the arrow-belt moves from the origin position to the yarn hooking position to hook the next yarn.

[0016] The method for removing a yarn from a quiver guide according to an embodiment of the present invention has at least the following beneficial effects: because the motion trajectory of the pusher claw's end is a cashew-nut-shaped closed curve, the pusher claw's end does not interfere with the quiver during its return to its initial position. Furthermore, while the pusher claw separates the yarn from the quiver, the quiver moves from its origin to its yarn hooking position, proceeding to hook the next yarn, thereby reducing threading time and improving production efficiency.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1 A schematic diagram of a partial structure of an automatic warp drawing-in machine according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a device for making yarn escape from an arrow tape guide rail according to an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the working of a device for making yarn escape from an arrow tape guide rail according to an embodiment of the present invention;

[0022] Figure 4Fig. 2 is a working schematic view of a yarn disengaging device from an arrow belt guide according to an embodiment of the present application;

[0023] Figure 5 Fig. 2 is a working schematic view of a yarn disengaging device from an arrow belt guide according to an embodiment of the present application;

[0024] Figure 6 Fig. 4 is a path speed characteristic point diagram of a pawl of a yarn disengaging device from an arrow belt guide according to an embodiment of the present application.

[0025] Reference numerals:

[0026] A yarn disengaging device from an arrow belt guide 1000;

[0027] A mounting seat 100;

[0028] A driving member 200;

[0029] A pawl assembly 300; a first connecting rod 310; a second connecting rod 320; a third connecting rod 330; a pawl 331; a first rod portion 3311; a second rod portion 3312;

[0030] A first guide member 400; a first arc-shaped wall surface 410;

[0031] A guide rail 2000; a sliding groove 2100; an original position 2110;

[0032] An arrow belt 3000;

[0033] A collecting device 4000;

[0034] A sensor 5000. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which like numerals indicate like elements or elements having the same or similar function throughout the several views. The embodiments described below are exemplary only and are not to be construed as limiting the present application.

[0036] In the description of the present application, it is to be understood that the orientation description, such as the upper, lower, inner, outer, and the like, is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] In an automatic warp drawing system, the quiver reciprocates within the quiver guide rail, hooking the yarn. Simultaneously, a pusher mechanism, rotating in a semicircular motion, separates the yarn from the quiver and delivers it to a collection device. Because existing pusher mechanisms, after delivering the yarn to the collection device, continue rotating in the same direction, they collide with the collection device, preventing them from returning to their original position. Therefore, existing pusher mechanisms can only separate and transport the yarn from the quiver using a semicircular motion.

[0040] When using this type of pusher mechanism, the quiver cannot immediately move to hook the next yarn while the pusher delivers the yarn to the collecting device and then returns to its original position along the original path. Otherwise, the pusher would interfere with the quiver when returning to its original position. Therefore, the quiver can only move to hook the next yarn after the pusher returns to its original position, which greatly increases the threading time and reduces production efficiency.

[0041] To this end, an embodiment of the present invention provides a device 1000 for making yarns escape from the arrow guide rail, specifically referring to the accompanying drawings of the specification. Figures 1 to 6 shown.

[0042] Reference Figure 1As shown, a device 1000 for making yarn deviate from an quiver guide rail according to an embodiment of the present invention is used for an automatic warp drawing-in machine. It should be noted that the automatic warp drawing-in machine includes a guide rail 2000, an quiver 3000 and a collecting device 4000. The guide rail 2000 is provided with a chute 2100 and a yarn taking gap. It should be noted that the chute 2100 is arranged along the length direction of the guide rail 2000, and the chute 2100 has an origin position 2110 and a yarn hooking position. The yarn taking gap is located between the origin position 2110 and the yarn hooking position, and the yarn taking gap is connected to the chute 2100. In addition, the quiver 3000 is arranged in the chute 2100, and the quiver 3000 can move back and forth between the origin position 2110 and the yarn hooking position. When the quiver 3000 moves to the yarn hooking position, it can hook the yarn. The quiver 3000 then moves back to the origin position 2110, carrying the yarn. In one embodiment, the guide rail 2000 is disposed horizontally, and the chute 2100 is also disposed horizontally. In this embodiment, the quiver 3000 actually moves horizontally when it reciprocates between the origin position 2110 and the yarn hooking position.

[0043] Reference Figure 1 and Figure 2 As shown, an embodiment of the present invention is a device 1000 for making yarn escape from an arrow tape guide rail, and the device 1000 for making yarn escape from an arrow tape guide rail includes a mounting seat 100, a driving member 200, and a finger assembly 300. The mounting seat 100 is fixed to the guide rail 2000, for example, the mounting seat 100 is fixed to the guide rail 2000 by means of a threaded connection or the like. In addition, the driving member 200 is fixed to the mounting seat 100, for example, the driving member 200 is fixed to the mounting seat 100 by means of a threaded connection or the like. In one embodiment, the driving member 200 is a motor. In addition, the finger assembly 300 is mounted on the mounting seat 100, and the finger assembly 300 includes a finger 331, and the driving member 200 can drive the finger 331 to move. Figure 2 As shown, in one embodiment, the pusher dog assembly 300 further includes a first connecting rod 310, a second connecting rod 320, and a third connecting rod 330. It should be noted that one end of the first connecting rod 310 and one end of the second connecting rod 320 are rotatably connected to two ends of the third connecting rod 330, respectively. In other words, one end of the first connecting rod 310 is rotatably connected to one end of the third connecting rod 330, and one end of the second connecting rod 320 is rotatably connected to the other end of the third connecting rod 330. Simultaneously, the other end of the first connecting rod 310 is drivingly connected to the driving member 200, and the other end of the second connecting rod 320 is rotatably connected to the mounting base 100, thereby forming a crank-rocker mechanism. The pusher dog 331 is located at the end of the third connecting rod 330 that is connected to the first connecting rod 310.

[0044] Reference Figure 3 、 Figure 4 andFigure 5 As shown, it can be understood that the driving member 200 drives the first connecting rod 310 to rotate, and the first connecting rod 310 drives the second connecting rod 320 to swing through the third connecting rod 330. That is to say, the motion trajectory of the connection point between the first connecting rod 310 and the third connecting rod 330 is a circle, and the motion trajectory of the connection point between the second connecting rod 320 and the third connecting rod 330 is an arc. In addition, the pusher claw 331 has an initial position and a target position. The pusher claw 331 can start from the initial position, pass through the yarn taking gap to separate the yarn from the arrow belt 3000, and move to the target position, and feed the yarn into the collecting device 4000 at the target position. In addition, the pusher claw 331 can also return to the initial position from the target position. It should be noted that the movement trajectory of the end of the pusher claw 331 is a closed curve, and when the pusher claw 331 is at the target position, the end of the pusher claw 331 is at the lowest point of the closed curve. Refer to Figure 3 、 Figure 4 and Figure 5 As shown, in one embodiment, the third connecting rod 330 drives the pusher 331 to move, and the motion trajectory of the distal end of the pusher 331 is a cashew-nut-shaped closed curve. It should be noted that the target position is located at the lowest point of the cashew-nut-shaped closed curve. At this time, the yarn is subjected to the force of the pusher 331 to be thrown out. At the same time, the collecting device 4000 generates a suction force. Through the combination of these two forces, the yarn is successfully fed into the collecting device 4000. Afterwards, the driving member 200 continues to drive the first connecting rod 310 to rotate in the same direction, and the pusher 331 moves from the target position to return to the initial position. Obviously, because the motion trajectory of the distal end of the pusher 331 is a cashew-nut-shaped closed curve, the pusher 331 does not return along the original path when moving from the target position to the initial position, and does not interfere with the quiver 3000 during the return process. Therefore, while the pusher 331 separates the yarn from the quiver 3000, the quiver 3000 can move to the yarn hooking position to hook the next yarn, thereby reducing the running time of the warp drawing and improving production efficiency. It is understandable that the running path of the arrow belt 3000 is the key path of the entire automatic threading system, and shortening its running cycle will directly help to increase the speed of the entire threading system.

[0045] It should be noted that Figure 6 The figure is a characteristic point diagram of the path speed of the finger 331, which can be understood as a schematic diagram of the position change of the end of the finger 331 within a fixed interval. The X coordinate in the figure represents the horizontal position of the end of the finger 331, and the Y coordinate represents the vertical position of the end of the finger 331. In addition, it can be understood that Figure 6 The denser the dots are, the slower the speed of the end of the finger 331 is; the more dispersed the dots are, the faster the speed of the end of the finger 331 is. Figure 6As shown, during the movement of the pusher 331 from the initial position to the target position, the speed of the end of the pusher 331 first changes from slow to fast, and then from fast to slow. It can be understood that in the above case, the speed of the end of the pusher 331 first changes from slow to fast in order to quickly drive the yarn to move toward the collecting device 4000 and improve work efficiency. The speed of the end of the pusher 331 then changes from fast to slow in order to give the yarn more time to release its own tension and ensure that it can be fed into the collecting device 4000. In addition, continue to refer to Figure 6 As shown, when the finger 331 moves from the initial position to the target position, the average speed of the finger 331's end is V1. When the finger 331 returns from the target position to the initial position, the average speed of the finger 331's end is V2, satisfying the following: V1 < V2. This allows the finger 331's end to return to the initial position more quickly after feeding the yarn into the collecting device 4000, thereby improving production efficiency.

[0046] Reference Figure 1 As shown, in an embodiment of the present invention, a device 1000 for separating yarn from an arrow guide rail is provided. The automatic warp drawing machine further includes a sensor 5000, which is mounted at the yarn removal notch. It should be noted that the sensor 5000 is used to sense whether the pusher 331 has successfully separated the yarn from the arrow 3000.

[0047] Reference Figure 2 and Figure 4As shown, the device 1000 for separating the yarn from the arrow belt guide rail in an embodiment of the present application, the pawl 331 includes a first rod portion 3311 and a second rod portion 3312, wherein the first rod portion 3311 and the second rod portion 3312 are mutually included at an angle. It should be noted that the first rod portion 3311 is connected with the third connecting rod 330, and the angle between the first rod portion 3311 and the second rod portion 3312 can abut against the yarn. In addition, the angle between the first rod portion 3311 and the second rod portion 3312 can drive the yarn to move, so as to separate the yarn from the arrow belt 3000. Through the above arrangement, the yarn can be well wrapped, and the yarn can be prevented from being separated from the pawl 331 during movement. In an embodiment, the angle between the first rod portion 3311 and the horizontal plane is α, the angle between the second rod portion 3312 and the horizontal plane is β, and when the pawl 331 is located at the initial position, it satisfies: α>90°, β<20°. For example: α=100°, β=15°. When the pawl 331 is located at the target position, it satisfies: α=0°, β>70°. For example: β=75°. It can be understood that through the above arrangement, the yarn can be better prevented from being separated from the pawl 331 during movement when the pawl 331 moves from the initial position to the target position; and the yarn can be smoothly separated from the pawl 331 when the pawl 331 reaches the target position. It should be noted that the angle α between the first rod portion 3311 and the horizontal plane can be understood as the angle between the central axis of the first rod portion 3311 and the horizontal plane, and the angle β between the second rod portion 3312 and the horizontal plane can be understood as the angle between the central axis of the second rod portion 3312 and the horizontal plane. In an embodiment, in the direction away from the third connecting rod 330, the width of the first rod portion 3311 gradually decreases. In the direction away from the first rod portion 3311, the width of the second rod portion 3312 gradually decreases. It can be understood that through the above scheme, even if the yarn is wound on the pawl 331 when the pawl 331 is located at the target position, the yarn can be easily separated from the pawl 331.

[0048] Referring to Figure 2 and Figure 3 As shown, the device 1000 for separating the yarn from the arrow belt guide rail in an embodiment of the present application, the device 1000 for separating the yarn from the arrow belt guide rail further includes a first guide 400, and the first guide 400 is installed on one side of the mounting seat 100 close to the pawl 331. It should be noted that the first guide 400 can guide the yarn, so as to prevent the yarn from falling into the pawl assembly 300 during movement and causing failure. In an embodiment, the device 1000 for separating the yarn from the arrow belt guide rail further includes a second guide, and the second guide is installed on the guide rail 2000 and is oppositely arranged with the first guide 400. It should be noted that the pawl 331 is clamped between the first guide 400 and the second guide. It can be understood that through the above scheme, the yarn can be further prevented from falling into the pawl assembly 300 during movement and causing failure.

[0049] Referring toFigure 2 and Figure 3 As shown in the figure, it should be noted that the first guide 400 is provided with a first arc-shaped wall 410, and the second guide is provided with a second arc-shaped wall. The first arc-shaped wall 410 can be matched with the yarn guide, and the second arc-shaped wall can be matched with the yarn guide. It can be understood that, since the movement track of the end of the pawl 331 is a closed curve in the shape of cashew nut, the first guide 400 and the second guide can better guide the yarn by setting the first arc-shaped wall 410 and the second arc-shaped wall. In an embodiment, the included angle between the first rod part 3311 and the second rod part 3312 is located on one side of the first arc-shaped wall 410 and the second arc-shaped wall, which further prevents the yarn from falling into the pawl assembly 300 during movement to cause failure.

[0050] The embodiment of the present application also proposes a method for making the yarn separate from the arrow belt guide, which adopts the device 1000 for making the yarn separate from the arrow belt guide. The method for making the yarn separate from the arrow belt guide comprises the following steps: the arrow belt 3000 moves from the original position 2110 to the yarn hooking position to hook the yarn, and carries the yarn to move back to the original position 2110; the driving part 200 drives the pawl 331 to move, specifically, the driving part 200 drives the first connecting rod 310 to rotate, the pawl 331 passes through the yarn taking gap from the initial position to separate the yarn from the arrow belt 3000, and moves to the target position to send the yarn into the collecting device 4000; the driving part 200 continues to drive the pawl 331 to move, specifically, the driving part 200 drives the first connecting rod 310 to rotate in the same direction, so that the pawl 331 returns to the initial position from the target position, and waits for the next yarn to be separated; while the pawl 331 separates the yarn from the arrow belt 3000, the arrow belt 3000 moves from the original position 2110 to the yarn hooking position to hook the next yarn.

[0051] Obviously, since the movement track of the end of the pawl 331 is a closed curve in the shape of cashew nut, the pawl 331 will not interfere with the arrow belt 3000 during the movement from the target position back to the initial position, so while the pawl 331 separates the yarn from the arrow belt 3000, the arrow belt 3000 can move to the yarn hooking position to hook the next yarn, thereby reducing the running time of the threading and improving the production efficiency.

[0052] The above describes the embodiments of the present application in detail in combination with the drawings, and finally it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for making yarn escape from an arrow guide rail, for an automatic warp drawing-in machine, the automatic warp drawing-in machine comprising a guide rail, an arrow and a collecting device, the guide rail being provided with a chute and a yarn taking notch, the chute having an origin position and a yarn hooking position, the yarn taking notch being located between the origin position and the yarn hooking position and being communicated with the chute, the arrow being provided in the chute and being capable of reciprocating between the origin position and the yarn hooking position, the arrow being capable of hooking the yarn at the yarn hooking position, and being characterized in that: The device for making the yarn escape from the arrow belt guide rail comprises: A mounting base, fixed to the guide rail; A driving member, fixed to the mounting seat; The pusher claw assembly is mounted on the mounting seat, the pusher claw assembly includes a pusher claw, the driving member can drive the pusher claw to move, the pusher claw has an initial position and a target position, the pusher claw can pass through the yarn taking notch from the initial position to separate the yarn from the arrow belt, and move to the target position, and feed the yarn into the collecting device at the target position, the pusher claw can also return to the initial position from the target position, the movement trajectory of the end of the pusher claw is a cashew-shaped closed curve, when the pusher claw is at the target position, the end of the pusher claw is at the lowest point of the closed curve, when the pusher claw moves from the initial position to the target position, the speed of the end of the pusher claw changes from slow to fast, and then from fast to slow, the average speed of the end of the pusher claw when the pusher claw moves from the initial position to the target position is V1, and the average speed of the end of the pusher claw when the pusher claw returns from the target position to the initial position is V2, satisfying: V1<V2.

2. The device for making yarn escape from the arrow guide rail according to claim 1, characterized in that: The pusher dog assembly also includes a first connecting rod, a second connecting rod and a third connecting rod. The length of the first connecting rod is smaller than the length of the second connecting rod. One end of the first connecting rod and one end of the second connecting rod are respectively rotatably connected to two ends of the third connecting rod. The other end of the first connecting rod is drivingly connected to the driving member, and the other end of the second connecting rod is rotatably connected to the mounting seat to form a crank rocker mechanism. The pusher dog is connected to one end of the third connecting rod connected to the first connecting rod.

3. The device for making yarn escape from the arrow guide rail according to claim 2, characterized in that The pusher claw includes a first rod portion and a second rod portion that form an angle with each other, the first rod portion is connected to the third connecting rod, and the angle between the first rod portion and the second rod portion can abut against the yarn.

4. The device for making yarn escape from the arrow guide rail according to claim 3, characterized in that: The included angle between the first rod and the horizontal plane is α, the included angle between the second rod and the horizontal plane is β, when the pusher claw is at the initial position, it satisfies: α>90°, β<20°; when the pusher claw is at the target position, it satisfies: α=0°, β>70°.

5. The device for making yarn escape from the arrow guide rail according to claim 3, characterized in that: The width of the first rod portion gradually decreases in a direction away from the third connecting rod; and the width of the second rod portion gradually decreases in a direction away from the first rod portion.

6. The device for making yarn escape from the arrow guide rail according to claim 1, characterized in that: The device for making the yarn escape from the arrow belt guide rail further comprises a first guide member, which is mounted on a side of the mounting seat close to the pusher claw.

7. The device for making yarn escape from the arrow guide rail according to claim 6, characterized in that: The first guide member is provided with a first arcuate wall surface, and the first arcuate wall surface can cooperate with the yarn guide.

8. A method for making a yarn escape from an arrow tape guide rail, using the device for making a yarn escape from an arrow tape guide rail according to any one of claims 1 to 7, characterized in that: The method for making the yarn escape from the arrow belt guide includes: The arrow moves from the origin position to the yarn hooking position to hook the yarn, and moves back to the origin position carrying the yarn; The driving member drives the pusher claw to move, and the pusher claw passes through the yarn taking gap from the initial position to separate the yarn from the arrow belt, and moves to the target position, and feeds the yarn into the collecting device at the target position; The driving member continues to drive the pusher claw to move, so that the pusher claw returns from the target position to the initial position, waiting to separate the next yarn; While the pusher claw separates the yarn from the arrow, the arrow moves from the origin position to the yarn hooking position to hook the next yarn.

Images