Zipper puller head lower mold mechanism

Abstract

The utility model discloses a zip pull head lower mould mechanism, including left lower mould and right lower mould, and left lower mould is rotatedly connected lower mould seat through left lower mould pivot, and right lower mould is rotatedly connected lower mould seat through right lower mould pivot, left lower mould is provided with left lower mould guide rod, and left lower mould guide rod is located in the left lower mould guide inclined hole of the opening and closing block, and right lower mould is provided with right lower mould guide rod, and right lower mould guide rod is located in the right lower mould guide inclined hole of the opening and closing block, left lower mould guide inclined hole and right lower mould guide inclined hole are oppositely arranged, and the opening and closing block is provided with opening and closing block guide rail and opening and closing block power device, and opening and closing block power device drives the opening and closing block to reciprocate and slide along the opening and closing block guide rail, and left lower mould guide inclined hole guides left lower mould guide rod, makes left lower mould rotate to right lower mould side, and right lower mould guide inclined hole guides right lower mould guide rod, makes right lower mould rotate to left lower mould side.

Description

Technical Field

[0001] This utility model relates to the technical field of zipper production equipment, specifically to a zipper threading die mechanism. Background Technology

[0002] The zipper pull lower die, as a key component of the zipper pull mechanism, typically includes a left lower die and a right lower die. A pre-reserved gap is provided between the left and right lower dies to accommodate the zipper pull tab. The left and right lower dies are mounted on a mounting base, which is connected to a lifting power mechanism that drives the lower die to move up and down. For example, patent document CN220916737U discloses a zipper pull mechanism including a left lower die and a right lower die, with a mounting cavity between them. The zipper pull tab is located within the mounting cavity (pre-reserved gap). The left and right lower dies are mounted on a mounting base, which is mounted on a side plate. The side plate is equipped with a lifting slider and a lifting rail. A lifting cylinder drives the lower die to move up and down.

[0003] Because the zipper pull itself is small, its matching lower die design must be adapted to the zipper pull to ensure that the lower left and lower right dies can support the two ends of the zipper pull respectively. The pull tab is located between the lower left and lower right dies, but the positions of the lower left and lower right dies are usually fixed and non-adjustable rigid structures, resulting in a narrow and non-adjustable gap between them. This narrow and non-adjustable gap can cause a chain of problems during dynamic conveying: the non-stationary pull tab is prone to shaking due to inertia or vibration, and the shaking pull tab is prone to colliding with the lower left and lower right dies, causing the zipper pull's posture to deviate and affecting the positioning accuracy of the zipper pull; the collision may also cause the pull tab to jam, affecting the zipper pull; the fixed structure also limits the adaptability to different zipper pulls or working conditions. Utility Model Content

[0004] The purpose of this invention is to provide a zipper pull lower die mechanism that can adjust the distance between the left and right lower die ends, reducing the impact of pull tab wobbling on the zipper pull positioning.

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

[0006] The zipper pull lower die mechanism includes a left lower die and a right lower die. The left lower die is rotatably connected to a lower die base via a left lower die pivot, and rotates on the lower die base along the left lower die pivot. The right lower die is rotatably connected to the lower die base via a right lower die pivot, and rotates on the lower die base along the right lower die pivot. The left lower die is provided with a left lower die guide rod, which is located within the left lower die guide inclined hole of the opening and closing block. The right lower die is provided with a right lower die guide rod, which is located within the right lower die guide inclined hole of the opening and closing block. Inside the hole, the left lower mold guide oblique hole and the right lower mold guide oblique hole are arranged opposite to each other; the opening and closing block is provided with an opening and closing block guide rail and an opening and closing block power device. The opening and closing block power device drives the opening and closing block to slide back and forth along the opening and closing block guide rail. The left lower mold guide oblique hole guides the left lower mold guide rod. The left lower mold guide rod drives the left lower mold to rotate along the left lower mold rotation axis, so that the left lower mold rotates to the right lower mold side. The right lower mold guide oblique hole guides the right lower mold guide rod. The right lower mold guide rod drives the right lower mold to rotate along the right lower mold rotation axis, so that the right lower mold rotates to the left lower mold side.

[0007] In order to realize the lifting and lowering of the lower left and lower right molds, the lower mold base is provided with a lower mold base guide rail and a lower mold base power device. The lower mold base power device drives the lower mold base to reciprocate along the lower mold base guide rail.

[0008] Furthermore, the lower mold base guide rail includes a lower mold base slide groove, the lower mold base is disposed in the lower mold base slide groove, and reciprocates along the lower mold base slide groove.

[0009] To restrict the movement direction of the lower mold base, a left cover plate is provided on the left side wall of the lower mold base slide, and a right cover plate is provided on the right side wall of the lower mold base slide.

[0010] On the right lower die side, the head end of the left lower die is provided with a left pull head limiting groove, and on the left lower die side, the head end of the right lower die is provided with a right pull head limiting groove.

[0011] Furthermore, the opening and closing block guide rail includes a left opening and closing slider and a right opening and closing slider. The left opening and closing slider is located in the left opening and closing slider groove on the left side of the opening and closing block, and the right opening and closing slider is located in the right opening and closing slider groove on the right side of the opening and closing block.

[0012] Furthermore, the left opening and closing slider is disposed on the left fixed plate, the left fixed plate is disposed on the lower mold base, the right opening and closing slider is disposed on the right fixed plate, and the right fixed plate is disposed on the lower mold base.

[0013] This invention increases the distance between the ends of the lower left and lower right dies, making it easier for the pull tab to enter between them and reducing the possibility of the pull tab getting stuck or colliding. After the pull tab is positioned between the lower left and lower right dies, the opening and closing blocks drive the lower left and lower right dies to clamp the pull head, which improves the positioning effect of the pull head and reduces the impact of pull tab wobbling on the positioning of the pull head. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the zipper threading die mechanism.

[0016] Figure 2 This is a schematic diagram of the connection structure of the lower mold base.

[0017] Figure 3 This is a schematic diagram of the lower mold base structure.

[0018] Figure 4 This is a schematic diagram of the connection relationship between the opening and closing blocks. Detailed Implementation

[0019] like Figure 1-4 As shown, the zipper threading lower mold mechanism includes a vertical side plate 11. A lower mold base guide rail is provided on the front side of the vertical side plate 11. The lower mold base guide rail includes a lower mold base slide groove 31. A left cover plate 311 is provided on the left side wall of the lower mold base slide groove 31, and a right cover plate 312 is provided on the right side wall of the lower mold base slide groove 31. The left cover plate 311 and the right cover plate 312 limit the lower mold base 41 within the lower mold base slide groove 31. The lower mold base 41 slides back and forth along the lower mold base slide groove 31. The lower mold base 41 is connected to a lower mold base power device 32. The lower mold base power device 32 is a cylinder (or other similar linear drive mechanism). The lower mold base power device 32 is connected to the vertical side plate 11 through a lower mold base power mounting plate 12. The lower mold base power device 32 drives the lower mold base 41 to slide back and forth along the lower mold base slide groove 31, thereby realizing the lifting and lowering of the lower mold mechanism.

[0020] A lower mold mounting plate 42 is provided on the lower mold base 41. A left lower mold rotating shaft 83, a right lower mold rotating shaft 84 and an opening and closing block support block 43 are provided on the front side of the lower mold mounting plate 42. The left lower mold rotating shaft 83 and the right lower mold rotating shaft 84 are located above the opening and closing block support block 43. The left lower mold rotating shaft 83 is rotatably connected to the tail of the left lower mold 81. The left lower mold 81 rotates on the lower mold mounting plate 42 along the left lower mold rotating shaft 83, so that the left lower mold 81 moves closer to / away from the right lower mold 82. The right lower mold rotating shaft 84 is rotatably connected to the tail of the right lower mold 82. The right lower mold 82 rotates on the lower mold mounting plate 42 along the right lower mold rotating shaft 84, so that the right lower mold 82 moves closer to / away from the left lower mold 81.

[0021] like Figure 2 As shown, a pull tab receiving cavity is reserved between the lower right mold 82 and the lower left mold 81. On the side of the lower right mold 82, a left pull head limiting groove is provided at the head end of the lower left mold 81. On the side of the lower left mold 81, a right pull head limiting groove is provided at the head end of the lower right mold 82. The left pull head limiting groove and the right pull head limiting groove are arranged opposite to each other.

[0022] The lower left mold 81 has a lower left mold guide rod 61 on its front side. The lower left mold guide rod 61 is located in the lower left mold guide inclined hole 611 of the opening and closing block 6. The lower right mold 82 has a lower right mold guide rod 62 on its front side. The lower right mold guide rod 62 is located in the lower right mold guide inclined hole 621 of the opening and closing block 6. The lower left mold guide inclined hole 611 and the lower right mold guide inclined hole 621 are symmetrically arranged on the opening and closing block 6.

[0023] The opening / closing block 6 is equipped with an opening / closing block guide rail and an opening / closing block power device 33. The opening / closing block power device 33 is a cylinder (or other similar linear drive mechanism). The opening / closing block guide rail includes a left fixed plate 51 and a right fixed plate 52. The left fixed plate 51 is located on the left side of the opening / closing block 6 and is connected to the opening / closing block support block 43. Between the left fixed plate 51 and the opening / closing block 6, a left opening / closing slider 53 is provided on the left fixed plate 51. The opening / closing block 6 is provided with a left opening / closing slider groove 531. The left opening / closing slider 53 is located within the left opening / closing slider groove 531. The right opening and closing block 6 is located on the right side of the opening and closing block 6. The right fixed plate 52 is connected to the opening and closing block support block 43. Between the right fixed plate 52 and the opening and closing block 6, the right fixed plate 52 is provided with a right opening and closing slider 54. The opening and closing block 6 is provided with a right opening and closing slider groove 541. The right opening and closing slider 54 is located in the right opening and closing slider groove 541 and slides back and forth along the right opening and closing slider groove 541. The opening and closing block power device 33 drives the opening and closing block 6 to rise and fall along the left opening and closing slider groove 531 and the right opening and closing slider groove 541.

[0024] When the opening and closing block power device 33 drives the opening and closing block 6 to descend, the opening and closing block 6 slides along the opening and closing block guide rail. The left lower mold guide inclined hole 611 guides the left lower mold guide rod 61. The left lower mold guide rod 61 drives the left lower mold 81 to rotate along the left lower mold rotating shaft 83, so that the head end of the left lower mold 81 is away from the head end of the right lower mold 82. The right lower mold guide inclined hole 621 guides the right lower mold guide rod 62. The right lower mold guide rod 62 drives the right lower mold 82 to rotate along the right lower mold rotating shaft 84, so that the head end of the right lower mold 82 is away from the head end of the left lower mold 81, so that the head ends of the right lower mold 82 and the head ends of the left lower mold 81 open, making it easier for the pull piece to enter between the left lower mold 81 and the right lower mold 82.

[0025] After the pull head is positioned between the lower left mold 81 and the lower right mold 82, when the opening and closing block power device 33 drives the opening and closing block 6 to rise, the opening and closing block 6 slides along the opening and closing block guide rail. The lower left mold guide inclined hole 611 guides the lower left mold guide rod 61, and the lower left mold guide rod 61 drives the lower left mold 81 to rotate along the lower left mold rotating shaft 83. The head end of the lower left mold 81 approaches the head end of the lower right mold 82. The lower right mold guide inclined hole 621 guides the lower right mold guide rod 62, and the lower right mold guide rod 62 drives the lower right mold 82 to rotate along the lower right mold rotating shaft 84. The head end of the lower right mold 82 approaches the head end of the lower left mold 81, thereby realizing the closing of the head end of the lower right mold 82 and the head end of the lower left mold 81, and realizing the clamping and positioning of the pull head.

[0026] The opening and closing block support block 43 is located between the lower mold mounting plate 42 and the opening and closing block 6. It is used to support the opening and closing block 6, prevent the bottom of the opening and closing block 6 from being suspended, and improve the stability of the lifting and lowering movement of the opening and closing block 6.

[0027] 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 threading die mechanism, characterized in that: The device includes a lower left mold and a lower right mold. The lower left mold is rotatably connected to a lower mold base via a lower left mold pivot, and rotates on the lower mold base along the lower left mold pivot. The lower right mold is rotatably connected to the lower mold base via a lower right mold pivot, and rotates on the lower mold base along the lower right mold pivot. The lower left mold is equipped with a lower left mold guide rod, which is located within the lower left mold guide inclined hole of the opening and closing block. The lower right mold is equipped with a lower right mold guide rod, which is located within the lower right mold guide inclined hole of the opening and closing block. The left and right lower mold guide oblique holes are arranged opposite to each other; the opening and closing block is provided with an opening and closing block guide rail and an opening and closing block power device. The opening and closing block power device drives the opening and closing block to slide back and forth along the opening and closing block guide rail. The left lower mold guide oblique hole guides the left lower mold guide rod. The left lower mold guide rod drives the left lower mold to rotate along the left lower mold rotation axis, so that the left lower mold rotates to the right lower mold side. The right lower mold guide oblique hole guides the right lower mold guide rod. The right lower mold guide rod drives the right lower mold to rotate along the right lower mold rotation axis, so that the right lower mold rotates to the left lower mold side.

2. The zipper threading die mechanism according to claim 1, characterized in that: The lower mold base is equipped with a lower mold base guide rail and a lower mold base power device, and the lower mold base power device drives the lower mold base to move up and down along the lower mold base guide rail.

3. The zipper threading die mechanism according to claim 2, characterized in that: The lower mold base guide rail includes a lower mold base slide groove. A left cover plate is provided on the left side wall of the lower mold base slide groove, and a right cover plate is provided on the right side wall of the lower mold base slide groove. The lower mold base is disposed in the lower mold base slide groove and reciprocates along the lower mold base slide groove.

4. The zipper threading die mechanism according to claim 1, characterized in that: On the right lower die side, the head end of the left lower die is provided with a left pull head limiting groove, and on the left lower die side, the head end of the right lower die is provided with a right pull head limiting groove.

5. The zipper threading die mechanism according to claim 1, characterized in that: The opening and closing block guide rail includes a left opening and closing slider and a right opening and closing slider. The left opening and closing slider is located in the left opening and closing slider groove on the left side of the opening and closing block, and the right opening and closing slider is located in the right opening and closing slider groove on the right side of the opening and closing block.

6. The zipper threading die mechanism according to claim 5, characterized in that: The left opening and closing slider is mounted on the left fixed plate, the left fixed plate is mounted on the lower mold base, the right opening and closing slider is mounted on the right fixed plate, and the right fixed plate is mounted on the lower mold base.

Images