Zipper pull mechanism

Abstract

The utility model discloses a zip fastener traction mechanism, including guide rail, be provided with the chain clamp device on the guide rail, the chain clamp device is used for clamping zip fastener, the chain clamp device is provided with the displacement power device, the displacement power device is used for driving the chain clamp device reciprocating displacement along the guide rail, one side of the guide rail is provided with zip fastener traction wheel, the zip fastener traction wheel includes driving wheel and driven wheel, the driving wheel sets up on rotating power device, the rotating power device is used for driving driving wheel rotation, the driven wheel sets up on driven wheel seat, the driven wheel seat is provided with rotating shaft and push power device, the push power device is used for driving driven wheel seat rotation along rotating shaft, makes driven wheel and driving wheel clamping zip fastener. The utility model discloses through zip fastener traction wheel to zip fastener carries out secondary traction, makes the traction of zip fastener not to be restricted by the length of guide rail, improves the applicability of product.

Description

Technical Field

[0001] This utility model relates to a zipper traction mechanism and belongs to the technical field of zipper production equipment. Background Technology

[0002] The zipper traction mechanism is usually located on one side of the threading mechanism. It is used to clamp the zipper and pull it forward. The zipper traction mechanism pulls the zipper through the threading mechanism, thus completing the threading of the zipper.

[0003] A zipper traction mechanism, such as the one disclosed in patent announcement CN221044413U, includes a zipper threading and chain-connecting transmission mechanism and a zipper threading and chain-connecting machine. The drive end of the drive motor is connected to a coupling, which in turn is connected to a rotating shaft. The rotating shaft is connected to a transmission belt, and the transmission belt is fixedly connected to a clamping device for gripping and pushing the zipper head to move and chain. The transmission belt is sleeved between the rotating shaft and the transmission shaft. The rotating shaft is rotatably connected to a first connecting seat, and the transmission shaft is rotatably connected to a second connecting seat. The first connecting seat has a slide rail fixedly connected to one end, and the clamping device is slidably connected to the slide rail. The other end of the slide rail has a second connecting seat fixedly installed thereto. The drive motor drives the rotating shaft to rotate, thereby driving the transmission belt to rotate. The transmission belt drives the clamping device to move along the slide rail, thus allowing the clamping device to move within the length range of the transmission belt. This allows for free control of the driving stroke of the clamping device, enabling it to be used for chaining zippers of different lengths and improving the product's versatility. However, the length range of the drive belt is limited, and the maximum stroke of the clamping device is the length of the slide rail. This means that it can only be used for zippers whose length is within the range of the drive belt length, and cannot be used for zippers whose length is outside the range of the drive belt length. Utility Model Content

[0004] The purpose of this invention is to provide a zipper traction mechanism that can pull zippers whose length is outside the range of the guide rail length.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0006] A zipper traction mechanism includes a guide rail, on which a zipper clamping device is disposed. The zipper clamping device is used to clamp a zipper. The zipper clamping device is provided with a displacement power device, which is used to drive the zipper clamping device to reciprocate along the guide rail. A zipper traction wheel is disposed on one side of the guide rail. The zipper traction wheel includes a driving wheel and a driven wheel. The driving wheel is disposed on a rotation power device, which is used to drive the driving wheel to rotate. The driven wheel is disposed on a driven wheel seat, which is provided with a rotation shaft and a pushing power device. The pushing power device is used to drive the driven wheel seat to rotate along the rotation shaft, so that the driven wheel and the driving wheel clamp the zipper.

[0007] The zipper clamping device is located at the left end of the guide rail, clamping the zipper on the left side of the zipper traction mechanism. The displacement power device drives the clamping device to move to the right along the guide rail, pulling the zipper to the right. After the zipper passes the zipper traction wheel, the displacement power device stops conveying and drives the driven wheel to rotate along the rotating shaft, causing the driven wheel and the driving wheel to clamp the zipper. After the driven wheel and the driving wheel clamp the zipper, the rotation power device drives the driving wheel to rotate, and the driving wheel and the driven wheel work together to pull the zipper to the right. After the zipper traction is completed, the power device drives the driven wheel away from the driving wheel, thereby releasing the zipper between the driven wheel and the driving wheel. When the driven wheel rotates to release the zipper, it also avoids the clamping device, allowing the displacement power device to drive the clamping device to move to the left along the guide rail and reset. Of course, by adjusting the rotation direction of the driving wheel, the zipper traction wheel can also pull the zipper to the right. In this case, the clamping device needs to release the zipper so that the zipper on the left side of the zipper traction wheel can be conveyed to the right side of the zipper traction wheel.

[0008] In order to limit the zipper and prevent it from disengaging from the drive wheel and the driven wheel, a tooth travel cavity is provided between the drive wheel and the driven wheel, and the zipper teeth travel within the tooth travel cavity.

[0009] Furthermore, the chain tooth traveling cavity is composed of a driving wheel traveling groove and a driven wheel traveling groove, with the driving wheel traveling groove disposed on the driving wheel and the driven wheel traveling groove disposed on the driven wheel.

[0010] To limit the movement of the zipper pull and allow it to travel on the zipper, the tooth travel cavity is smaller than the maximum size of the zipper pull. When the zipper pull reaches the tooth travel cavity, because the cavity is smaller, the pull cannot pass through and stops there. Therefore, the zipper pull can move on the zipper, thus opening and closing it. Of course, the zipper pull can also separate the zipper while moving on it.

[0011] To limit the rotation of the driven wheel seat and prevent the driven wheel from disengaging from the driving wheel, a limit rod is provided on one side of the driven wheel seat. The limit rod is equipped with a limit power device, which drives the limit rod to abut against the driven wheel seat. When the driven wheel rotates closer to the driving wheel, the limit power device drives the limit rod to abut against the driven wheel seat, limiting its movement. When the driven wheel rotates away from the driving wheel and returns to its original position, the limit power device drives the limit rod away from the driven wheel seat, thus freeing the driven wheel seat from the limit rod's restraint.

[0012] To adjust the height of the rotating shaft so that the driven wheel can cooperate with the driving wheel to clamp the zipper, the rotating shaft is mounted on a rotating seat. The rotating seat is located in an adjustment groove and can slide up and down along the adjustment groove. An adjustment block is provided at the bottom of the adjustment groove, and an adjustment bolt is threaded onto the adjustment block. The adjustment bolt is used to push the rotating seat to slide upward along the adjustment groove.

[0013] Furthermore, the side wall of the adjustment groove is provided with a waist-shaped hole in the vertical direction, and a fastening bolt is provided in the waist-shaped hole. When the rotating seat slides up and down along the adjustment groove, the fastening bolt moves up and down in the waist-shaped hole.

[0014] In order to receive the zipper and transport it to the next process, a conveyor belt is provided below the zipper traction mechanism.

[0015] This invention utilizes a zipper traction wheel to provide secondary traction to the zipper, eliminating the limitations of guide rail length and improving product applicability. Furthermore, this invention uses a tooth-traveling cavity to limit the slider's movement, allowing it to travel along the zipper and achieving automatic zipper closure. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the zipper traction mechanism and conveyor belt structure.

[0018] Figure 2 This is a schematic diagram of the zipper traction mechanism.

[0019] Figure 3 This is a schematic diagram of the zipper traction wheel structure.

[0020] Figure 4 This is a schematic diagram of the driven wheel installation structure.

[0021] Figure 5 This is a schematic diagram of the limit rod structure. Detailed Implementation

[0022] like Figure 1-5As shown, the zipper traction mechanism includes a guide rail 1, a conveyor belt 5 below the guide rail 1, and a zipper clamping device 2 on the guide rail 1. The clamping claws of the zipper clamping device 2 are located on the rear side of the guide rail 1, and the zipper clamping device 2 is used to clamp the zipper. The zipper clamping device 2 is equipped with a displacement power device 3, which drives the zipper clamping device 2 to move left and right along the guide rail 1. It should be noted that the conveyor belt 5 can be a common conveyor belt in the prior art, and the specific structure and principle will not be described in detail here; the zipper clamping device 2 can adopt a common clamping claw structure in the prior art, and the guide rail 1 and the displacement power device 3 can adopt a common linear module in the prior art. The linear module drives the clamping claws to move left and right, realizing the left and right movement of the zipper clamping device 2 along the guide rail 1; of course, the zipper clamping device 2, the guide rail 1, and the displacement power device 3 can also adopt the same structure as in the Chinese patent document CN221044413U, or other structures with the same function, to clamp the zipper and pull the zipper to the right, and the specific structure and principle will not be described in detail here.

[0023] A zipper traction wheel 4 is provided on the rear side of the guide rail 1. The zipper traction wheel 4 is located in the middle and rear part of the guide rail 1. The zipper traction wheel 4 includes a driving wheel 61 and a driven wheel 71. The driving wheel 61 is mounted on a rotating power device 62. The rotating power device 62 is a common motor (or servo motor, or other similar power device). The motor is mounted on a fixed plate 63. The fixed plate 63 is mounted on a bracket. The fixed plate 63 has a through hole through which the motor shaft passes. The driving wheel 61 is connected to the motor shaft.

[0024] Driven wheel 71 is rotatably mounted on driven wheel seat 72. Driven wheel 71 rotates on driven wheel seat 72. Driven wheel seat 72 is rotatably connected to rotating seat 81 via rotating shaft 73. Driven wheel seat 72 is provided with push shaft 75. Push shaft 75 is rotatably connected to push power device 74. Push power device 74 is cylinder (or other similar power device). Push shaft 75 is rotatably connected to piston rod of cylinder. Cylinder is provided on bracket. Cylinder pushes push shaft 75. Driven wheel seat 72 rotates on rotating seat 81 along rotating shaft 73, causing driven wheel 71 to rotate closer to drive wheel 61, thereby causing driven wheel 71 and drive wheel 81 to clamp the zipper.

[0025] In the initial state, the zipper clamping device 2 is located at the left end of the guide rail 1, with the driven wheel 71 away from the driving wheel 61. When the clamping claw of the zipper clamping device 2 slides to the right along the guide rail 1, the claw can pass through the zipper traction wheel 4. In use, the zipper clamping device 2 clamps the zipper and pulls the zipper to the right along the guide rail 1. After the zipper passes the zipper traction wheel 4, the displacement power device 3 stops conveying and drives the power device 74 to drive the driven wheel seat 72 to rotate along the rotating shaft 73, so that the driven wheel 71 and the driving wheel 61 clamp the zipper. After the driven wheel 71 and the driving wheel 61 clamp the zipper, the rotation power device 62 drives the driving wheel 61 to rotate. The driving wheel 61 and the driven wheel 71 cooperate to pull the zipper to continue to move to the right, thus completing the zipper traction.

[0026] After the zipper traction is completed, the driving power device 74 drives the driven wheel 71 to rotate away from the driving wheel 61, thereby releasing the zipper between the driving wheel 61 and the driven wheel 71. While the driven wheel 71 rotates to release the zipper, it also avoids the clamping claw of the zipper clamping device 2, so that the displacement power device 3 can drive the clamping claw to move to the left and reset.

[0027] Of course, by adjusting the rotation direction of the rotating power device 62, the drive wheel 61 can be reversed, which can pull the zipper to the right. At this time, the zipper clamping device 2 needs to release the zipper so that the zipper on the left side of the zipper traction wheel can be transported to the right side of the zipper traction wheel.

[0028] In some embodiments, a tooth travel cavity is provided between the driving wheel 61 and the driven wheel 71, and the zipper teeth travel within the tooth travel cavity. Specifically, the tooth travel cavity is composed of a driving wheel travel groove 611 and a driven wheel travel groove 711, with the driving wheel travel groove 611 disposed on the driving wheel 61 and the driven wheel travel groove disposed on the driven wheel 71.

[0029] In some embodiments, the tooth travel cavity is smaller than the maximum size of the zipper pull. When the zipper pull travels to the tooth travel cavity, because the tooth travel cavity is smaller than the maximum size of the zipper pull, the zipper pull cannot pass through the tooth travel cavity, causing the zipper pull to stop at the tooth travel cavity. Therefore, the zipper pull can travel on the zipper, thereby opening and closing the zipper; of course, the zipper pull can also separate the zipper as it travels on it.

[0030] In some embodiments, to limit the rotation of the driven wheel seat and prevent the driven wheel from disengaging from the driving wheel, such as... Figure 5 As shown, a limit rod 91 is provided on the rear side of the driven wheel seat 72. The limit rod 91 is equipped with a limit power device 92, which is a cylinder (or other similar power device). When the driven wheel seat 72 rotates, the driven wheel 71 and the driving wheel 61 clamp the zipper. The cylinder drives the limit rod 91 to move forward, so that the limit rod 91 abuts against the rear side of the driven wheel seat 92, limiting the driven wheel seat 72 to prevent the driven wheel 71 from disengaging from the driving wheel 61.

[0031] When the driven wheel 71 needs to be moved away from the driving wheel 61 to reset, the cylinder drives the limit rod 91 to move backward, the limit rod 91 moves away from the driven wheel seat 72, and thus the driven wheel seat 72 gets out of the limit of the limit rod 91.

[0032] In some embodiments, to adjust the height of the rotating shaft 73 and facilitate the engagement of the driven wheel 71 and the driving wheel 61, a rotating seat 81 is disposed within an adjusting groove 82 and can slide up and down along the adjusting groove 82. An adjusting block 83 is disposed at the bottom of the adjusting groove 82 and is connected to the side wall of the adjusting groove 82. An adjusting bolt 84 is threaded onto the adjusting block 83. When the adjusting bolt 84 rotates upward, it pushes the rotating seat 81 to slide upward along the adjusting groove 82, thereby raising the rotating shaft 73. When the adjusting bolt 84 rotates downward, the rotating seat 81 can slide downward along the adjusting groove 82, thereby lowering the rotating shaft 73. Furthermore, a waist-shaped hole 85 in the vertical direction is provided on the side wall of the adjusting groove 82. A fastening bolt 86 is disposed within the waist-shaped hole 85, which secures the rotating seat 81 and the adjusting groove 82 to position the height of the rotating shaft 73. When the rotating seat 81 slides up and down along the adjusting groove 82, the fastening bolt 86 can move up and down within the waist-shaped hole 85.

[0033] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A zipper traction mechanism, comprising a guide rail, a zipper clamping device disposed on the guide rail for clamping a zipper, the zipper clamping device being provided with a displacement power device for driving the zipper clamping device to reciprocate along the guide rail, characterized in that, A zipper traction wheel is provided on one side of the guide rail. The zipper traction wheel includes a driving wheel and a driven wheel. The driving wheel is mounted on a rotational power device, which drives the driving wheel to rotate. The driven wheel is mounted on a driven wheel seat, which is provided with a rotation shaft and a pushing power device. The pushing power device drives the driven wheel seat to rotate along the rotation shaft, so that the driven wheel and the driving wheel clamp the zipper.

2. The zipper traction mechanism according to claim 1, characterized in that: A chain tooth travel cavity is provided between the driving wheel and the driven wheel.

3. The zipper traction mechanism according to claim 2, characterized in that: The chain tooth traveling cavity is composed of a driving wheel traveling groove and a driven wheel traveling groove. The driving wheel traveling groove is located on the driving wheel, and the driven wheel traveling groove is located on the driven wheel.

4. A zipper traction mechanism according to claim 2, characterized in that: The size of the chain tooth travel cavity is smaller than the maximum size of the pull head.

5. A zipper traction mechanism according to claim 1, characterized in that: A limit rod is provided on one side of the driven wheel seat, and a limit power device is provided on the limit rod. The limit power device is used to drive the limit rod to abut against the driven wheel seat.

6. A zipper traction mechanism according to claim 1, characterized in that: The rotating shaft is mounted on a rotating seat, which is located in an adjusting groove and can slide up and down along the adjusting groove. An adjusting block is provided at the bottom of the adjusting groove, and an adjusting bolt is threaded onto the adjusting block. The adjusting bolt is used to push the rotating seat to slide upward along the adjusting groove.

7. A zipper traction mechanism according to claim 6, characterized in that: The side wall of the adjustment groove is provided with a waist-shaped hole in the vertical direction. A fastening bolt is provided in the waist-shaped hole. When the rotating seat slides up and down along the adjustment groove, the fastening bolt moves up and down in the waist-shaped hole.

8. A zipper traction mechanism according to claim 1, characterized in that: A conveyor belt is installed below the zipper traction mechanism.

Images