Zipper rail head puller assembly mechanism

Abstract

The present invention relates to a zipper rail head pull tab assembly mechanism, which is used to clamp the code hook of the pull tab in the guide rail of the pull head, and includes a fixed seat, a driving device and a riveting device. The fixed seat is provided with a card slot for fixing the pull head, and the pull head is vertically arranged in the card slot. Two adjustment plates are movably arranged on the fixed seat and used to clamp the pull tab. The driving device is arranged on one side of the fixed seat, and the driving device is connected to the riveting device. The riveting device includes two clamping arms, and the card slot is located between the clamping parts of the two clamping arms. Both clamping parts are located on the fixed seat, and the two clamping parts are used to press the code hook of the pull tab so that the code hook is located in the guide rail of the pull head. The driving device drives the two clamping arms to move away from or close to each other. The zipper rail head pull tab assembly mechanism adapts to pull tabs of different sizes by adjusting the spacing between the two adjustment plates, which significantly improves the compatibility of the equipment.

Description

Technical Field

[0001] The invention relates to the field of clothing tools, and in particular to a zipper guide rail head puller assembly mechanism. Background Art

[0002] In the pull tab assembly mechanism in the prior art, the U-shaped portion of the front end of the push member is used to fix and hold the pull tab, so the holding member only corresponds to pull tabs of a specified size. When the pull tabs have different sizes, the push member cannot fix and hold the pull tab, resulting in poor compatibility.

[0003] Therefore, it is necessary to provide a zipper guide rail head pull tab assembly mechanism to solve the above-mentioned problems. Summary of the invention

[0004] The present invention relates to a zipper guide rail head pull tab assembly mechanism, which clamps the pull tab by two movable adjustment plates and adapts to pull tabs of different sizes by adjusting the distance between the two adjustment plates, thereby significantly improving the compatibility of the device and solving the problem of poor device compatibility caused by the use of a U-shaped part that only corresponds to a pull tab of a specified size in the prior art.

[0005] In order to solve the above problems, the present invention provides a zipper rail head pull tab assembly mechanism, which is used to clamp the code hook of the pull tab in the guide rail of the pull head, and comprises:

[0006] A fixed seat, wherein the fixed seat is provided with a slot for fixing the pull head, and the pull head is vertically arranged in the slot; the fixed seat is provided with two adjustment plates, the two adjustment plates are movably arranged on the fixed seat, and both are located on one side of the slot, and the two adjustment plates are used to clamp the pull tab;

[0007] a driving device, the driving device being arranged on one side of the fixing seat; and

[0008] The riveting device, the driving device is connected to the riveting device, the riveting device includes two clamping arms, the slot is located between the clamping parts of the two clamping arms, the two clamping parts are both located on the fixed seat, and the two clamping parts are used to press the code hook of the pull tab; the two clamping arms are both connected to the driving device, and the driving device is used to drive the two clamping arms to move away from or closer to each other.

[0009] Furthermore, the adjustment plate is provided with a through-bar adjustment groove, and the length direction of the adjustment groove is perpendicular to the length direction of the pull tab. A screw threadedly connected to the fixing seat is inserted into the adjustment groove to adjust the distance between the two adjustment plates. The adjustment plate is movably arranged on the fixing seat through the adjustment groove and the screw, which is convenient to adjust and has a simple structure, and can improve the efficiency of replacing the pull tab.

[0010] Furthermore, one end of the adjustment plate close to the slot is rotatably connected to the fixing seat, the adjustment slot is configured as an arc structure, and the center of the adjustment slot is located on the rotating shaft of the adjustment plate, which can improve the adjustment efficiency.

[0011] Further, the riveting device also includes two slides. Each of the clamping arms is connected to one of the slides. The upper end of the slide is connected to one end of the clamping arm away from the clamping portion, and a protruding block is provided on the slide, and the protruding block is provided on the side of the slide away from the fixed seat. A first inclined surface is provided on the side opposite to the other protruding block, and the end surface area of ​​the protruding block close to the fixed seat is larger than the end surface area of ​​the other end of the protruding block. The driving device includes a driving cylinder and two push rods, and the output shaft of the driving cylinder is fixedly connected to one end of the two push rods at the same time, and the other ends of the two push rods are provided with a second inclined surface, and the second inclined surface is arranged corresponding to the first inclined surface. The driving cylinder drives the two push rods to move, and the first inclined surface and the second inclined surface are used to transmit the force of the driving cylinder to the slide, so that the two slides are close to each other and the sliding direction of the slide is perpendicular to the movement direction of the driving cylinder, which has a simple structure and saves costs.

[0012] Furthermore, a positioning block is provided at the upper end of the slide, and a positioning groove is provided at the end of the clamp arm. The positioning block is clamped in the positioning groove, which can improve the installation efficiency and prevent the clamp arm and the slide from sliding relative to each other.

[0013] Furthermore, a slide groove is provided at one end of the fixed seat close to the slide seat, and the length direction of the slide groove is perpendicular to the movement direction of the driving device. The slide seat is also provided with a slide bar, which is slidably connected to the slide groove to prevent the slide seat from shifting during the sliding process and improve the accuracy.

[0014] Furthermore, the clamp arm is configured as a plate-like structure, and the clamp arm also includes a positioning portion and a connecting portion, wherein the positioning portion is connected to one end of the connecting portion, and the other end of the connecting portion is connected to the clamping portion. The positioning portion and the clamping portion are configured as a rectangular structure, and the connecting portion is configured as a trapezoidal structure. The length of the positioning portion is smaller than the length of the clamping portion, thereby saving costs. The positioning portion is fixedly connected to the upper surface of the sliding seat, and the clamping portion and the connecting portion are in contact with the upper surface of the fixed seat. A groove is provided below one end of the two clamping portions close to the card slot, and the inner side wall of the groove is used to squeeze the pull tab, and the top wall of the groove is used to press the pull head, thereby improving work efficiency.

[0015] Furthermore, the card slot includes a first receiving slot and a second receiving slot, and the first receiving slot is arranged perpendicularly and in communication with the second receiving slot. The first receiving slot is used to place the end face of the slider containing the guide rail, and the second receiving slot is used to place the end face of the slider containing the through slot for passing the zipper. The cross section of the first receiving slot along the length direction is rectangular, and the side of the second receiving slot opposite to the first receiving slot includes a first supporting surface, a guiding surface and a second supporting surface. The first supporting surface is arranged obliquely, and the guiding surface is arranged as an arc surface structure, one end of the first supporting surface is connected to one end of the guiding surface, one end of the second supporting surface is connected to the other end of the guiding surface, and the other end of the second supporting surface is located at the bottom of the second receiving slot. The opening area of ​​the upper end of the second receiving slot is larger than the opening area of ​​the lower end of the second receiving slot, which can adapt to sliders of different sizes and improve compatibility.

[0016] Furthermore, at least one first spring sheet and one second spring sheet are provided in the slot, one end of the first spring sheet is connected to the lower end of the inner side wall of the first receiving slot, and the upper end of the first spring sheet is spaced apart from the inner side wall of the first receiving slot. One end of the second spring sheet is connected to the second supporting surface, and the upper end of the second spring sheet is spaced apart from the first supporting surface, for fixing the slider to improve work efficiency.

[0017] Furthermore, a plurality of anti-sliding blocks are provided on the side where the first spring sheet and the second spring sheet are close to each other, and the plurality of anti-sliding blocks are spaced apart in sequence up and down, and the thickness of the upper end of the anti-sliding block is smaller than the thickness of the lower end of the anti-sliding block, thereby improving the fixing effect of the slider.

[0018] Since the present invention adopts the above-mentioned zipper rail head pull tab assembly mechanism, compared with the prior art, its beneficial effects are as follows: the present invention relates to a zipper rail head pull tab assembly mechanism, which is used to clamp the code hook of the pull tab in the guide rail of the pull tab, and includes a fixed seat, a driving device and a riveting device. The fixed seat is provided with a card slot for fixing the pull tab, and the pull tab is vertically arranged in the card slot. The fixed seat is provided with two adjustment plates, and the two adjustment plates are movably arranged on the fixed seat and are both located on one side of the card slot. The two adjustment plates are used to clamp the pull tab. The driving device is arranged on one side of the fixed seat, and the driving device is connected to the riveting device. The riveting device includes two clamping arms, and the card slot is located between the clamping parts of the two clamping arms. The two clamping parts are both located on the fixed seat, and the two clamping parts are used to press the code hook of the pull tab. The two clamping arms are both connected to the driving device, and the driving device is used to drive the two clamping arms to move away from or close to each other. The zipper guide head pull tab assembly mechanism clamps the pull tab through two movable adjustment plates and adapts to pull tabs of different sizes by adjusting the distance between the two adjustment plates, which significantly improves the compatibility of the equipment and solves the problem of poor equipment compatibility in the prior art due to the use of a U-shaped part that only corresponds to a pull tab of a specified size. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a zipper guide rail head pull tab assembly mechanism of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the zipper guide rail head pull tab assembly mechanism of the present invention.

[0022] Figure 3 It is a structural schematic diagram of an embodiment of a fixing seat of a zipper rail head pull tab assembly mechanism of the present invention.

[0023] Figure 4 It is a structural schematic diagram of an embodiment of the card slot of the zipper guide rail head pull tab assembly mechanism of the present invention.

[0024] Figure 5 for Figure 4 Schematic diagram of the AA section.

[0025] Figure 6 It is a structural schematic diagram of an embodiment of the first spring piece and the second spring piece of the zipper rail head pull tab assembly mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the exploded structure of an embodiment of the zipper guide rail head pull tab assembly mechanism of the present invention.

[0027] Figure 8 It is a structural schematic diagram of an embodiment of the clamping arm of the zipper rail head pull tab assembly mechanism of the present invention.

[0028] Fig. 9 It is a structural schematic diagram of an embodiment of a zipper of a zipper guide rail head puller assembly mechanism of the present invention.

[0029] In the figure: 10. Zipper rail head puller assembly mechanism, 20. Frame, 30. Fixed seat, 31. Adjustment plate, 32. Adjustment slot, 33. Fixed slot, 34. Slot, 341. First accommodating slot, 342. Second accommodating slot, 3421. First supporting surface, 3422. Guide surface, 3423. Second supporting surface, 35. First spring sheet, 36. Second spring sheet, 37. Anti-sliding block, 38. Slide slot, 40. Driving device , 41. driving cylinder, 42. first connecting seat, 43. second connecting seat, 44. push rod, 50. riveting device, 51. clamping arm, 511. clamping part, 512. positioning part, 513. connecting part, 514. groove, 515. positioning groove, 52. sliding seat, 521. positioning block, 522. protruding block, 523. sliding bar, 53. cover plate, 60. pull piece, 61. code hook, 70. pull head, 71. guide rail. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only for reference to the orientation of the drawings. The directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0032] In the figures, structurally similar elements are denoted by the same reference numerals.

[0033] Please refer to Figure 1 , Figure 2 In this embodiment, the zipper rail head puller assembly mechanism 10 includes a frame 20, a fixing seat 30, a driving device 40 and a riveting device 50. The fixing seat 30 is arranged on the frame 20, please refer to Figure 3The fixing seat 30 is provided with a fixing groove 33 for fixing the pull tab 60 and a clamping groove 34 for fixing the pull head 70. The fixing groove 33 is connected with the clamping groove 34, and the pull head 70 is vertically arranged in the clamping groove 34.

[0034] Please refer to Figure 4 , Figure 5 The card slot 34 includes a first receiving slot 341 and a second receiving slot 342, and the first receiving slot 341 and the second receiving slot 342 are arranged perpendicularly and in communication. The first receiving slot 341 is used to place the end surface of the slider 70 containing the guide rail 71, and the second receiving slot 342 is used to place the end surface of the slider 70 containing the through slot for passing the zipper. The cross section of the first receiving slot 341 along the length direction is rectangular, and the side of the second receiving slot 342 opposite to the first receiving slot 341 includes a first supporting surface 3421, a guiding surface 3422 and a second supporting surface 3423. The first supporting surface 3421 is arranged obliquely, and the guiding surface 3422 is arranged as an arc surface structure. One end of the first supporting surface 3421 is connected to one end of the guiding surface 3422, and one end of the second supporting surface 3423 is connected to the other end of the guiding surface 3422, and the other end of the second supporting surface 3423 is located at the bottom of the second receiving slot 342. The opening area of ​​the upper end of the second receiving groove 342 is larger than the opening area of ​​the lower end of the second receiving groove 342 , and can accommodate sliders 70 of different sizes, thereby improving compatibility.

[0035] Please refer to Figure 6 In order to adapt to the sliders 70 of different sizes and ensure that the sliders 70 can be stably fixed in the slot 34, at least one first spring piece 35 and one second spring piece 36 can be arranged in the slot 34, one end of the first spring piece 35 is connected to the lower end of the inner wall of the first receiving slot 341, and the upper end of the first spring piece 35 is spaced from the inner wall of the first receiving slot 341. One end of the second spring piece 36 is connected to the second supporting surface 3423, and the upper end of the second spring piece 36 is spaced from the inner wall of the first supporting surface 3421, which is used to fix the slider 70 and improve work efficiency.

[0036] A plurality of anti-sliding blocks 37 are provided on one side of the inner wall of the first elastic piece 35 and the second elastic piece 36 away from the slot 34. The plurality of anti-sliding blocks 37 are arranged in sequence at intervals up and down. The thickness of the upper end of the anti-sliding block 37 is less than the thickness of the lower end of the anti-sliding block 37, thereby improving the fixing effect of the slider 70 and preventing the slider 70 from being squeezed and popped out.

[0037] Please refer to Figure 3The fixing seat 30 includes two adjustment plates 31, which are movably arranged in the fixing groove 33, and the two adjustment plates 31 are used to clamp the pull tab 60. A rotating shaft is arranged at one end of the adjustment plate 31 close to the clamping groove 34. A through-bar adjustment groove 32 is arranged at the other end of the adjustment plate 31, and the length direction of the adjustment groove 32 is perpendicular to the length direction of the pull tab 60. A screw threadedly connected to the fixing seat 30 is inserted into the adjustment groove 32 to adjust the distance between the two adjustment plates 31. The adjustment plate 31 is movably arranged on the fixing seat 30 through the adjustment groove 32 and the screw, which is convenient to adjust and has a simple structure, and can improve the efficiency of replacing the pull tab 60.

[0038] One end of the adjustment plate 31 near the slot 34 is rotatably connected to the fixing seat 30, and the adjustment slot 32 is set to an arc structure, and the center of the adjustment slot 32 is located on the rotation axis of the adjustment plate 31, which improves the efficiency of adjustment. When the spacing needs to be adjusted, the end of the adjustment plate 31 located at the adjustment slot 32 can be directly rotated to adjust the spacing, thereby improving the efficiency of replacing the pull tab 60, thereby improving the efficiency of assembly.

[0039] In this embodiment, please refer to Figure 7 The driving device 40 is arranged on one side of the fixed seat 30, and the driving device 40 includes a driving cylinder 41, a first connecting seat 42, a second connecting seat 43 and two push rods 44. The driving cylinder 41 is fixedly arranged on the frame 20, and a mounting groove is arranged at one end of the first connecting seat 42 close to the driving cylinder 41, and the end of the output shaft of the driving cylinder 41 is clamped in the mounting groove, which is convenient for installation and disassembly, and improves the efficiency of assembly. The first connecting seat 42 and the second connecting seat 43 are both arranged in a strip shape, and both ends of the first connecting seat 42 are fixedly connected to one end of a push rod 44.

[0040] The two protruding blocks 522 are each provided with a first inclined surface on the opposite side thereof, so that the end surface area of ​​the protruding block 522 at one end close to the fixed seat 30 is larger than the end surface area of ​​the other end of the protruding block 522. The other end of the push rod 44 is provided with a second inclined surface matching the first inclined surface. The driving cylinder 41 drives the two push rods 44 to move, and the first inclined surface and the second inclined surface are used to transmit the force of the driving cylinder 41 to the slide seat 52, so that the two slide seats 52 are close to each other and the sliding direction of the slide seat 52 is perpendicular to the movement direction of the driving cylinder 41. The other ends of the push rods 44 pass through the second connecting seat 43, and the second connecting seat 43 is used to limit the two push rods 44, ensuring that the push rods 44 move along the pushing direction to prevent deviation. Along the pushing direction, the thickness of the end of the push rod 44 located at the first inclined surface gradually decreases. The driving cylinder 41 drives the two push rods 44 to move synchronously through the first connecting seat 42. The second inclined surfaces of the two push rods 44 cooperate to push the two slide seats 52 closer to each other, thereby driving the clamping arm 51 closer to press the code hook 61 of the pull tab 60 into the guide rail 71 of the slider 70.

[0041] In this embodiment, please refer to Figure 7 , Figure 8 The riveting device 50 includes two clamping arms 51, two slide seats 52, an elastic member and a cover plate 53. The card slot 34 is located between the clamping parts 511 of the two clamping arms 51. The two clamping parts 511 are both located on the fixed seat 30. The two clamping parts 511 are used to press the code hook 61 of the pull tab 60. The two clamping arms 51 are connected to the driving device 40, and the driving device 40 is used to drive the two clamping arms 51 to move away from or approach each other. Please refer to Fig. 9 The outer peripheral end of the pull head 70 is provided with a guide rail 71, and the code hook 61 of the pull tab 60 is stuck in the guide rail 71 and can slide along the guide rail 71. During installation, the pull tab 60 is manually placed at the corresponding position between the two adjustment plates 31, the pull head 70 is placed in the card slot 34, the code hook 61 corresponds to the guide rail 71, the position of the adjustment plate 31 is adjusted, and the pull tab 60 is fixed.

[0042] The clamp arm 51 is configured as a plate-like structure, and further includes a positioning portion 512 and a connecting portion 513. The positioning portion 512 is connected to one end of the connecting portion 513, and the other end of the connecting portion 513 is connected to the clamping portion 511. The positioning portion 512 and the clamping portion 511 are configured as a rectangular structure, and the connecting portion 513 is configured as a trapezoidal structure. The length of the positioning portion 512 (the length of the side where the positioning portion 512 and the connecting portion 513 are connected) is less than the length of the clamping portion 511 (the length of the side where the clamping portion 511 and the connecting portion 513 are connected), thereby saving costs. The positioning portion 512 is fixedly connected to the upper surface of the sliding seat 52, and the clamping portion 511 and the connecting portion 513 are fitted to the upper surface of the fixed seat 30, so that the clamp arm 51 is stable in movement relative to the fixed seat 30. A groove 514 is provided below one end of the two clamping parts 511 close to the card slot 34. The inner wall of the groove 514 is used to squeeze the pull tab 60, and the top wall of the groove 514 is used to press the pull head 70 to prevent the code hook from tilting during the squeezing process, thereby improving work efficiency.

[0043] The positioning portion 512 of each clamp arm 51 is connected to a slide seat 52, and an elastic member is connected between the two slide seats 52 to return the two slide seats 52 to the initial position. In the figure, the elastic member is not drawn. A positioning block 521 is provided at the upper end of the slide seat 52, and a positioning groove 515 is provided at the end of the positioning portion 512 of the clamp arm 51. The positioning block 521 is clamped in the positioning groove 515, which can improve the efficiency of installation and prevent the clamp arm 51 and the slide seat 52 from sliding relative to each other.

[0044] The slide 52 is provided with a protruding block 522, which is arranged on the side of the slide 52 away from the fixed seat 30. A first inclined surface is provided on the side opposite to the other protruding block 522, and the end surface area of ​​the protruding block 522 at one end close to the fixed seat 30 is larger than the end surface area of ​​the other end of the protruding block 522. The driving device 40 is used to drive the two protruding blocks 522 to approach or move away from each other so that the clamping parts 511 of the two clamping arms 51 are close to or away from each other, which has a simple structure and saves costs. A sliding groove 38 is provided at one end of the fixed seat 30 close to the slide 52, and the length direction of the sliding groove 38 is perpendicular to the movement direction of the driving device 40. The slide 52 is also provided with a slide bar 523, which is slidably connected to the slide bar 38, which can prevent the slide 52 from shifting during the sliding process and improve the accuracy. The cover plate 53 is screwed to the upper end of the second connecting seat 43 . The cover plate 53 is located above the two clamping arms 51 to prevent the clamping arms 51 from turning up during the riveting process, thereby improving the efficiency of the riveting.

[0045] In this embodiment, the present invention relates to a zipper rail head pull tab assembly mechanism, which is used to clamp the code hook of the pull tab in the rail of the pull tab, and includes a fixed seat, a driving device and a riveting device. The fixed seat is provided with a slot for fixing the pull tab, and the pull tab is vertically arranged in the slot. The fixed seat is provided with two adjustment plates, and the two adjustment plates are movably arranged on the fixed seat and are both located on one side of the slot, and the two adjustment plates are used to clamp the pull tab. The driving device is arranged on one side of the fixed seat, and the driving device is connected to the riveting device. The riveting device includes two clamping arms, and the slot is located between the clamping parts of the two clamping arms. The two clamping parts are both located on the fixed seat, and the two clamping parts are used to press the code hook of the pull tab. The two clamping arms are both connected to the driving device, and the driving device is used to drive the two clamping arms to move away from or approach each other. The zipper guide head pull tab assembly mechanism clamps the pull tab through two movable adjustment plates and adapts to pull tabs of different sizes by adjusting the distance between the two adjustment plates, which significantly improves the compatibility of the equipment and solves the problem of poor equipment compatibility in the prior art due to the use of a U-shaped part that only corresponds to a pull tab of a specified size.

[0046] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A zipper rail head pull tab assembly mechanism, used to clamp the code hook of the pull tab in the guide rail of the pull head, characterized in that: include: A fixed seat, wherein the fixed seat is provided with a slot for fixing the pull head, and the pull head is vertically arranged in the slot; the fixed seat is provided with two adjustment plates, the two adjustment plates are movably arranged on the fixed seat, and both are located on one side of the slot, and the two adjustment plates are used to clamp the pull tab; A driving device, wherein the driving device is arranged on one side of the fixing seat; A riveting device, wherein the driving device is connected to the riveting device, and the riveting device comprises two clamping arms, wherein the clamping slot is located between the clamping parts of the two clamping arms, and the two clamping parts are both located on the fixing seat, and the two clamping parts are used to press the code hook of the pull tab; the two clamping arms are both connected to the driving device, and the driving device is used to drive the two clamping arms to move away from or towards each other; The riveting device further comprises two slides, each of the clamping arms is connected to one of the slides, an elastic member is connected between the two slides for returning the two slides to their initial positions; the upper end of the slide is connected to one end of the clamping arm away from the clamping portion, a protruding block is arranged on the slide, and the protruding block is arranged on the side of the slide away from the fixed seat; a first inclined surface is arranged on the side opposite to the other protruding block, and the end surface area of ​​the protruding block at one end close to the fixed seat is larger than the end surface area of ​​the other end of the protruding block; The driving device includes a driving cylinder and two push rods, the output shaft of the driving cylinder is fixedly connected to one end of the two push rods at the same time, and the other ends of the two push rods are each provided with a second inclined surface, and the second inclined surface is arranged corresponding to the first inclined surface; the driving cylinder drives the two push rods to move, and the first inclined surface and the second inclined surface are used to transmit the force of the driving cylinder to the slide seat, so that the two slide seats are close to each other and the sliding direction of the slide seat is perpendicular to the movement direction of the driving cylinder.

2. The zipper rail head puller assembly mechanism according to claim 1, characterized in that: The adjustment plate is provided with a through-bar adjustment groove, the length direction of the adjustment groove is perpendicular to the length direction of the pull tab, a screw threadedly connected to the fixing seat is passed through the adjustment groove, and is used to adjust the distance between the two adjustment plates; the adjustment plate is movably arranged on the fixing seat through the adjustment groove and the screw.

3. The zipper rail head puller assembly mechanism according to claim 2, characterized in that: One end of the adjustment plate close to the clamping slot is rotatably connected to the fixing seat, the adjustment slot is configured as an arc structure, and the center of the adjustment slot is located on the rotating shaft of the adjustment plate.

4. The zipper rail head puller assembly mechanism according to claim 1, characterized in that: A positioning block is also arranged at the upper end of the slide seat, and a positioning groove is arranged at the end of the clamping arm, and the positioning block is clamped in the positioning groove.

5. The zipper rail head puller assembly mechanism according to claim 1, characterized in that: A slide groove is arranged at one end of the fixed seat close to the slide seat, and the length direction of the slide groove is arranged perpendicular to the movement direction of the driving device; the slide seat is also provided with a slide bar, and the slide bar is slidably connected to the slide groove.

6. The zipper rail head puller assembly mechanism according to claim 1, characterized in that: The clamping arm is configured as a plate-like structure; the clamping arm also includes a positioning portion and a connecting portion, the positioning portion is connected to one end of the connecting portion, and the other end of the connecting portion is connected to the clamping portion, the positioning portion and the clamping portion are configured as a rectangular structure, and the connecting portion is configured as a trapezoidal structure, and in the movement direction of the clamping portion, the length of the positioning portion is smaller than the length of the clamping portion; the positioning portion is fixedly connected to the upper surface of the sliding seat, and the clamping portion, the connecting portion and the upper surface of the fixed seat are fitted, and grooves are provided below one end of the two clamping portions close to the slot, the inner side wall of the groove is used to squeeze the pull tab, and the top wall of the groove is used to press the pull head.

7. The zipper rail head puller assembly mechanism according to claim 1, characterized in that: The card slot includes a first accommodating slot and a second accommodating slot, the first accommodating slot is perpendicular to and connected to the second accommodating slot, the first accommodating slot is used to place the end face of the slider containing the guide rail, and the second accommodating slot is used to place the end face of the slider containing the through slot for passing the zipper; the cross-section of the first accommodating slot along the length direction is rectangular, and the side of the second accommodating slot opposite to the first accommodating slot includes a first supporting surface, a guide surface and a second supporting surface; the first supporting surface is inclined, and the guide surface is an arc surface structure, one end of the first supporting surface is connected to one end of the guide surface, one end of the second supporting surface is connected to the other end of the guide surface, and the other end of the second supporting surface is located at the bottom of the second accommodating slot; the opening area of ​​the upper end of the second accommodating slot is larger than the opening area of ​​the lower end of the second accommodating slot.

8. The zipper rail head puller assembly mechanism according to claim 7, characterized in that: At least one first spring sheet and one second spring sheet are also arranged in the card slot, one end of the first spring sheet is connected to the lower end of the inner side wall of the first accommodating groove, and the upper end of the first spring sheet is spaced apart from the inner side wall of the first accommodating groove; one end of the second spring sheet is connected to the second supporting surface, and the upper end of the second spring sheet is spaced apart from the first supporting surface.

9. The zipper rail head puller assembly mechanism according to claim 8, characterized in that: A plurality of anti-sliding blocks are arranged on the side where the first spring sheet and the second spring sheet are close to each other. The plurality of anti-sliding blocks are arranged in sequence and spaced apart from each other. The thickness of the upper end of the anti-sliding block is less than the thickness of the lower end of the anti-sliding block.

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