Leather high-cycle pressing jig

Abstract

The utility model discloses a leather high-cycle pressing jig, which relates to the technical field of jigs and comprises a jig upper die holder and a jig lower die holder. The bottom end of the jig upper die base is symmetrically connected with high-frequency die heads, and the top end of the jig lower die base is symmetrically connected with a first positioning column and a second positioning column which are used for fixing a wrapper, a die core and a bottom wrapper. After die assembly, the high-frequency die heads are located on the two sides of the die core and matched with the die core in shape, so that high-frequency welding is achieved. The guide columns are arranged on the jig upper die base, the guide holes are formed in the jig lower die base, the guide columns are inserted into the guide holes during die assembly, and accurate die assembly is guaranteed. First positioning holes corresponding to the positioning columns are formed in the edges of the surface skin and the bottom skin, second positioning holes corresponding to the second positioning columns are formed in the two ends of the mold core, and accurate positioning of all parts is guaranteed.

Description

A leather high-cycle pressure jig Technical Field

[0001] This utility model relates to the field of jig technology, specifically a high-cycle pressure jig for leather. Background Technology

[0002] Traditionally, the leather covering (including the outer fabric and the backing) of the headband of over-ear headphones is stitched together. While this method is technically mature, it suffers from problems such as visible stitching, potentially affecting aesthetics, and the stitched areas being prone to wear and tear and unraveling after prolonged use, thus reducing the overall quality and lifespan of the headphones.

[0003] With the continuous development of technology, high-frequency welding technology, as an efficient and precise joining method, has been widely used in the leather processing industry. Welding the edges of the fabric and backing together using high-frequency welding not only achieves seamless splicing and enhances the product's aesthetics, but also effectively strengthens the joint and increases its durability. However, during high-frequency welding, the fabric and backing need to be fixed in a layered manner to ensure the accuracy and stability of the weld.

[0004] Currently, although there are some jigs on the market for fixing leather, these jigs are often complex in structure, inconvenient to operate, or unable to meet the specific requirements of high-frequency welding, such as being unable to accurately align the edges of the fabric and the base material, or being unable to provide stable fixing force. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a high-period pressure fitting for leather, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-frequency pressing fixture for leather, comprising an upper mold base and a lower mold base, wherein a high-frequency mold head is symmetrically connected to the bottom end of the upper mold base, and a plurality of first positioning posts and a plurality of second positioning posts are symmetrically connected to the top end of the lower mold base, wherein the first positioning posts and the second positioning posts are used to jointly fix the front leather, the mold core and the bottom leather.

[0007] Furthermore, after the upper mold base and the lower mold base of the fixture are closed, the high-frequency mold head is located on both sides of the mold core, and the shape of the high-frequency mold head is adapted to the contour of both sides of the mold core.

[0008] Furthermore, several guide pillars are symmetrically installed at the bottom of the upper mold base of the fixture, and several guide holes are symmetrically opened at the top of the lower mold base of the fixture. When the mold is closed, the guide pillars are located inside the guide holes for mold closing positioning.

[0009] Furthermore, the first and second positioning posts are symmetrically distributed at the top of the lower mold base of the fixture to achieve stable fixation of the surface skin, mold core, and bottom skin.

[0010] Furthermore, the edges of the outer and bottom layers are provided with several first positioning holes corresponding to the first positioning post and the second positioning post.

[0011] Furthermore, both ends of the mold core are provided with second positioning holes corresponding to the second positioning pins.

[0012] This utility model provides a high-period pressure fitting fixture for leather. Compared with the prior art, it has the following advantages:

[0013] This high-frequency welding fixture for leather achieves precise stacking and stable fixation of the front, core, and bottom leathers during high-frequency welding through a precisely designed structure of positioning posts (first and second positioning posts) and positioning holes (first positioning holes for the front and bottom leathers, and second positioning holes for the mold core), as well as a mold-closing positioning mechanism of guide posts and guide holes. This effectively avoids offset and misalignment during welding, ensures the consistency and welding quality of the high-frequency welding area, and significantly improves the yield and aesthetics of leather wrapping for headphone headbands, reduces scrap rate, and increases production efficiency. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 2 is a schematic diagram of the high-frequency mold head of this utility model;

[0016] Figure 3 is a top view of the assembled present invention;

[0017] Figure 4 is a cross-sectional view of AA in Figure 3;

[0018] Figure 5 is a cross-sectional view of BB in Figure 3;

[0019] Figure 6 is a schematic diagram of the product after it has been removed from the fixture through high-frequency welding.

[0020] In the diagram: 1. Upper mold base of the fixture; 11. High-frequency mold head; 12. Guide post; 2. Lower mold base of the fixture; 21. First positioning post; 22. Second positioning post; 23. Guide hole; 3. Outer skin; 31. First positioning hole; 4. Mold core; 41. Second positioning hole; 5. Bottom skin; 6. High-frequency welding area; 7. Scrap area; 8. Finished product. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5. This utility model provides a technical solution: a high-frequency pressing fixture for leather, including an upper mold base 1 and a lower mold base 2. The bottom end of the upper mold base 1 is symmetrically connected to a high-frequency mold head 11, and the top end of the lower mold base 2 is symmetrically connected to several first positioning posts 21. The top end of the lower mold base 2 is also symmetrically connected to second positioning posts 22. The first positioning posts 21 and the second positioning posts 22 together fix the front leather 3, the mold core 4, and the bottom leather 5.

[0023] After the upper mold base 1 and the lower mold base 2 of the fixture are closed, the high-frequency mold head 11 is located on both sides of the mold core 4, and the shape of the high-frequency mold head 11 is adapted to the contour of both sides of the mold core 4.

[0024] Several guide posts 12 are symmetrically installed at the bottom of the upper mold base 1 of the fixture, and several guide holes 23 are symmetrically opened at the top of the lower mold base 2 of the fixture. After the upper mold base 1 and the lower mold base 2 of the fixture are closed, the guide posts 12 are located inside the guide holes 23, which play the role of mold closing and positioning.

[0025] Several first positioning holes 31 corresponding to the first positioning post 21 and the second positioning post 22 are opened on the edges of the outer skin 3 and the bottom skin 5, and second positioning holes 41 corresponding to the second positioning post 22 are opened at both ends of the mold core 4.

[0026] In use, the lower mold base 2 of the fixture is fixed on the worktable of the high-frequency equipment, and the upper mold base 1 of the fixture is installed on the lifting drive end of the high-frequency equipment. In other words, the upper mold base 1 of the fixture can move up and down with the lifting drive end of the high-frequency equipment, thereby realizing the opening and closing of the mold with the lower mold base 2 of the fixture.

[0027] Before performing high-frequency welding, the face sheet 3 is first laid on the upper part of the lower mold base 2 of the fixture. When laying it, it is necessary to ensure that the first positioning hole 31 reserved on the edge of the face sheet 3 is fitted on the outside of each first positioning post 21 and second positioning post 22. Then, the mold core 4 is placed on the upper part of the face sheet 3. When placing the mold core 4, it is necessary to ensure that the second positioning hole 41 is fitted on the outside of the second positioning post 22. Finally, the bottom sheet 5 is laid on the upper part of the mold core 4. Similarly, when laying it, it is necessary to ensure that the first positioning hole 31 reserved on the edge of the bottom sheet 5 is fitted on the outside of each first positioning post 21 and second positioning post 22. In this way, the layered structure of face sheet 3, mold core 4, and bottom sheet 5 is completed.

[0028] Subsequently, the lifting drive end of the high-frequency equipment pushes the upper mold base 1 of the fixture downward until the bottom end of the high-frequency mold head 11 presses against the upper surface of the bottom skin 5. Then, the high-frequency equipment causes the high-frequency mold head 11 to generate high frequency. The principle of this is a known technology and will not be described in detail here. The high frequency generated by the high-frequency mold head 11 will act on the overlapping area of ​​the bottom skin 5 and the top skin 3, so that the two are welded together. After welding, as shown in Figure 6, high-frequency welding areas 6 will be formed on both sides. After removal, the excess waste area 7 is punched off along the outer edge of the high-frequency welding area 6 by the die-cutting equipment to form the final product 8. Finally, the bottom skin 5 between the top skin 3 and the mold core 4 is pulled out.

Claims

1. A high-frequency press jig for a leather, characterized by comprising: It includes an upper mold base (1) and a lower mold base (2). The bottom end of the upper mold base (1) is symmetrically connected to a high-frequency mold head (11), and the top end of the lower mold base (2) is symmetrically connected to several first positioning posts (21) and several second positioning posts (22). The first positioning posts (21) and the second positioning posts (22) are used to fix the face skin (3), the mold core (4) and the bottom skin (5) together.

2. The high-cycle pressure fitting for leather according to claim 1, characterized in that, After the upper mold base (1) and the lower mold base (2) of the fixture are closed, the high-frequency mold head (11) is located on both sides of the mold core (4), and the shape of the high-frequency mold head (11) matches the contour of both sides of the mold core (4).

3. The high-frequency press jig for leather according to claim 1, wherein Several guide pillars (12) are symmetrically installed at the bottom of the upper mold base (1) of the fixture, and several guide holes (23) are symmetrically opened at the top of the lower mold base (2) of the fixture. When the mold is closed, the guide pillars (12) are located inside the guide holes (23) for mold closing positioning.

4. The high-frequency press jig for leather according to claim 1, wherein The first positioning post (21) and the second positioning post (22) are symmetrically distributed at the top of the lower mold base (2) of the fixture to achieve stable fixation of the face skin (3), the mold core (4) and the bottom skin (5).

5. The high-frequency press jig for leather according to claim 1, wherein Several first positioning holes (31) corresponding to the first positioning post (21) and the second positioning post (22) are provided on the edges of the outer skin (3) and the bottom skin (5).

6. The high-frequency press jig for leather according to claim 1, wherein The mold core (4) has a second positioning hole (41) at both ends, which corresponds to the second positioning post (22).

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