A wok stamping die

By introducing a positioning block and a concentric ring positioning structure into the wok stamping die, combined with a cylinder-driven fixing mechanism, the problems of decreased die concentricity and long die change time are solved, achieving high concentricity and fast die change.

CN224586787UActive Publication Date: 2026-08-04ZHUHAI YONGCHENG HARDWARE PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI YONGCHENG HARDWARE PLASTIC CO LTD
Filing Date
2025-09-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

After long-term use, the concentricity of the existing wok stamping die decreases, resulting in excessive thickness difference in the wok body. Moreover, replacing the die is labor-intensive and time-consuming.

Method used

The design employs a positioning block at the lower end of the mold body, along with matching positioning slots and concentrically distributed positioning holes and positioning posts on the mold base, forming a true "center-concentric" reference system. Simultaneously, a cylinder-driven fixing mechanism enables rapid locking and releasing of the mold.

Benefits of technology

It maintains high concentricity of the mold, ensures uniform thickness of the pot wall, and significantly shortens mold change time, reducing labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wok stamping die, relating to the field of stamping die technology. It includes a die body and a die base for supporting and fixing the die body. The lower end of the die body is provided with a positioning block, and the middle position of the die base is provided with a positioning groove that matches the positioning block. Several positioning holes are arranged on the outer side of the positioning groove. These positioning holes are evenly distributed on a concentric ring with increasing diameter, centered on the center of the positioning groove. Positioning pins are threaded into the positioning holes. This utility model achieves a true "center-concentric" reference system by setting a positioning block at the lower end of the die body and providing a matching positioning groove and multiple sets of positioning holes and pins arranged in concentric rings on the die base. This ensures high concentricity and uniform wall thickness of the wok even after long-term use.
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Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a wok stamping die. Background Technology

[0002] In the current wok manufacturing industry, stamping is the mainstream process for obtaining the initial wok blank. Traditional wok stamping dies typically consist of two parts: the die body and the die base. The die body is directly locked to the die base by bolts or pressure plates. Due to the large forming force and significant eccentric load of woks, the die must ensure high concentricity and repeatability to guarantee uniform wok wall thickness and resist horizontal slippage and torsion during the stamping process, preventing die misalignment or even ejection.

[0003] However, existing molds mostly use a combination of locating pins and bolts for positioning. The locating pins are usually arranged at the four corners or sides of the mold base, and the positioning reference surface is a straight line or rectangle, which cannot form a true "center-concentric" reference system. After long-term use, the wear of the pin holes leads to increased clearance, decreased mold concentricity, and excessive thickness difference in the pot body.

[0004] Based on this, a wok stamping die is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a wok stamping die to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wok stamping die includes a die body and a die base for supporting and fixing the die body. The die body has a positioning block at its lower end, and the die base has a positioning groove in the middle that matches the positioning block. A plurality of positioning holes are arranged on the outer side of the positioning groove. The positioning holes are evenly distributed on a concentric ring with an increasing diameter centered on the center of the positioning groove. A positioning post is threaded into the positioning hole.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the mold base has multiple connecting bolt holes at its edge, and the mold base has symmetrical fixing grooves at both ends.

[0010] In one alternative: two baffles are symmetrically provided on both sides of the mold base, and a mounting seat is provided at the lower end of the baffle, and the mounting seat is bolted to the mold base.

[0011] In one alternative: the upper end of the mold base is provided with a stamping support seat, the stamping support seat is provided with an opening in the middle for mounting the mold body, and the stamping support seat and the mold base are connected by bolts.

[0012] In one alternative: the lower end of the mold body is provided with a base, the base is provided with multiple fixing slots, the mold base is provided with multiple straight sliding grooves symmetrically, the straight sliding grooves are provided with limiting protrusions, and the mold base is provided with a fixing mechanism that facilitates quick installation and removal of the mold body.

[0013] In one alternative: the fixing mechanism includes a cover fixed to the lower end of the mold base, a turntable rotatably mounted inside the cover, a plurality of arc-shaped grooves symmetrically provided on the turntable, clamping components slidably mounted in the arc-shaped grooves, a rotating shaft provided on the turntable, and a driving component provided on one side of the rotating shaft.

[0014] In one alternative embodiment: the clamping member includes a fixing block that matches the fixing slot, the lower end of the fixing block is provided with a fixing post, the lower end of the fixing post is simultaneously slidably disposed in a straight slide groove and an arc-shaped slide groove, and the fixing post is provided with a limiting groove that matches the limiting protrusion.

[0015] In one alternative: the drive assembly includes a cylinder hinged to the lower end of the mold base, the cylinder output end having a movable rod, one end of the movable rod being hinged to a rotating shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model achieves a true "center-concentric" reference system by setting a positioning block at the lower end of the mold body and setting a matching positioning slot and multiple sets of positioning holes and positioning posts in concentric rings on the mold base. This ensures that the mold body can maintain high concentricity and ensure uniform wall thickness even after long-term use.

[0018] 2. This utility model adds a fixing mechanism driven by a cylinder-turntable to the lower end of the mold base. By using the arc-shaped slide groove and the straight slide groove to drive the fixing block to synchronously and radially clamp, the mold locking or releasing can be completed within a few seconds, significantly shortening the mold changing time and reducing labor intensity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the mold base in this utility model.

[0021] Figure 3 This is a schematic diagram of the fixing mechanism in this utility model.

[0022] Figure reference numerals: 100, mold body; 101, positioning block; 102, base; 103, fixing slot; 200, mold base; 201, positioning slot; 202, positioning hole; 203, positioning post; 204, bolt hole; 205, fixing groove; 206, straight slide groove; 207, limiting protrusion; 300, baffle; 301, mounting base; 400, stamping support base; 401, opening; 500, fixing mechanism; 501, cover; 502, turntable; 503, arc-shaped slide groove; 504, fixing block; 505, fixing post; 506, limiting groove; 507, rotating shaft; 508, cylinder; 509, moving rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example 1

[0025] In one embodiment, such as Figure 1 and Figure 2 As shown, a wok stamping die includes a die body 100 and a die base 200 for supporting and fixing the die body 100. The die body 100 has a positioning block 101 at its lower end. The die base 200 has a positioning groove 201 in the middle that matches the positioning block 101. Several positioning holes 202 are arranged on the outer side of the positioning groove 201, evenly distributed on a concentric ring with increasing diameter centered on the positioning groove 201. Positioning pins 203 are threaded into the positioning holes 202. Multiple connecting bolt holes 204 are provided at the edge of the die base 200. Fixing grooves 205 are symmetrically provided at both ends of the die base 200. Two baffles 30 are symmetrically provided on both sides of the die base 200. 0. The lower end of the baffle 300 is provided with a mounting base 301, which is bolted to the mold base 200. The upper end of the mold base 200 is provided with a stamping support base 400. The middle position of the stamping support base 400 is provided with an opening 401 for installing the mold body 100. The stamping support base 400 and the mold base 200 are connected by bolts. During assembly, the mold base 200 is first fixed on the operating table, and then the mold body 100 of the corresponding diameter is installed in the center position of the mold base 200 through the positioning block 101. Then, the positioning pin 203 is screwed into the positioning hole 202 to fix the mold body 100. Next, the baffle 300 is installed, and then the stamping support base 400 is installed on the upper end of the mold base 200.

[0026] The above embodiments disclose a wok stamping die. By setting a positioning block 101 at the lower end of the die body 100, and setting a matching positioning slot 201 and multiple sets of positioning holes 202 and positioning posts 203 distributed in concentric rings on the die base 200, a true "center-concentric" reference system is realized. This achieves the effect of maintaining high concentricity and ensuring uniform wall thickness of the wok even after long-term use. At the same time, by integrating the positioning slot 201, positioning holes 202 and detachable positioning posts 203 into the die base 200, a modular installation interface is formed, which achieves the effect of using the same die base 200 for dies of different diameters and quickly switching specifications without replacing the entire die base.

[0027] Example 2

[0028] The difference from Example 1 is that, in order to improve the replacement efficiency of the mold body 100, such as... Figure 3 As shown, the lower end of the mold body 100 is provided with a base 102, and the base 102 is provided with multiple fixing slots 103. The mold base 200 is symmetrically provided with multiple straight sliding grooves 206, and the straight sliding grooves 206 are provided with limiting protrusions 207. The mold base 200 is provided with a fixing mechanism 500 to facilitate the quick installation and removal of the mold body 100. The fixing mechanism 500 includes a cover 501 fixed to the lower end of the mold base 200. A turntable 502 is rotatably installed in the cover 501. The turntable 502 is symmetrically provided with multiple arc-shaped sliding grooves 503. Clamping components are slidably installed in the arc-shaped sliding grooves 503. The turntable 502 is provided with a rotating shaft 507. A drive assembly is provided on one side of the rotating shaft 507. The clamping components include a fixing element that matches the fixing slot 103. The fixed block 504 has a fixed post 505 at its lower end. The lower end of the fixed post 505 is slidably disposed in both the straight slide groove 206 and the arc-shaped slide groove 503. The fixed post 505 has a limiting groove 506 that matches the limiting protrusion 207. The driving assembly includes a cylinder 508 hinged to the lower end of the mold base 200. The output end of the cylinder 508 has a movable rod 509. One end of the movable rod 509 is hinged to the rotating shaft 507. In use, the cylinder 508 drives the movable rod 509 to extend and retract, thereby driving the rotating shaft 507 to rotate, which in turn drives the turntable 502 to rotate. The arc-shaped slide groove 503 drives the fixed post 505 to move radially along the straight slide groove 206, thereby clamping or releasing the mold body 100.

[0029] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wok stamping die, comprising a die body (100) and a die base (200) for supporting and fixing the die body (100), characterized in that, The lower end of the mold body (100) is provided with a positioning block (101), and the middle position of the mold base (200) is provided with a positioning groove (201) that matches the positioning block (101). A plurality of positioning holes (202) are arranged on the outer side of the positioning groove (201). The positioning holes (202) are evenly distributed on a concentric ring with the center of the positioning groove (201) as the center and the diameter increases. The positioning holes (202) are threaded with positioning pins (203).

2. The wok stamping die according to claim 1, characterized in that, The mold base (200) has multiple connecting bolt holes (204) at its edge, and the mold base (200) has symmetrical fixing grooves (205) at both ends.

3. The wok stamping die according to claim 2, characterized in that, The mold base (200) has two baffles (300) symmetrically arranged on both sides. The lower end of the baffle (300) is provided with a mounting seat (301), and the mounting seat (301) is bolted to the mold base (200).

4. The wok stamping die according to claim 1, characterized in that, The upper end of the mold base (200) is provided with a stamping support base (400), and the stamping support base (400) is provided with an opening (401) for installing the mold body (100) in the middle position. The stamping support base (400) and the mold base (200) are connected by bolts.

5. A wok stamping die according to claim 1, characterized in that, The mold body (100) is provided with a base (102) at its lower end. The base (102) is provided with a plurality of fixing slots (103). The mold base (200) is provided with a plurality of straight sliding grooves (206) symmetrically arranged. The straight sliding grooves (206) are provided with limiting protrusions (207). The mold base (200) is provided with a fixing mechanism (500) to facilitate the quick installation and removal of the mold body (100).

6. A wok stamping die according to claim 5, characterized in that, The fixing mechanism (500) includes a cover (501) fixed to the lower end of the mold base (200). A turntable (502) is rotatably installed inside the cover (501). A plurality of arc-shaped grooves (503) are symmetrically arranged on the turntable (502). Clamping components are slidably installed in the arc-shaped grooves (503). A rotating shaft (507) is provided on the turntable (502). A driving component is provided on one side of the rotating shaft (507).

7. A wok stamping die according to claim 6, characterized in that, The clamping member includes a fixing block (504) that matches the fixing slot (103). The fixing block (504) has a fixing post (505) at its lower end. The lower end of the fixing post (505) is slidably disposed in both the straight slide groove (206) and the arc-shaped slide groove (503). The fixing post (505) has a limiting groove (506) that matches the limiting protrusion (207).

8. A wok stamping die according to claim 6, characterized in that, The drive assembly includes a cylinder (508) hinged to the lower end of the mold base (200), and the output end of the cylinder (508) is provided with a movable rod (509), one end of which is hinged to the rotating shaft (507).