A multi-product common mode structure

By designing a common mold structure for multiple products and using a combination of replaceable punches and ejector pins, the problem of traditional molds requiring separate design is solved, achieving efficient mold reuse and production flexibility, and reducing resource waste and costs.

CN224406204UActive Publication Date: 2026-06-26WUHAN PUTAI ZHUCHENG METAL MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN PUTAI ZHUCHENG METAL MATERIALS CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional mold design requires individual production for each product, resulting in a complex and time-consuming process that hinders rapid production. Furthermore, it leads to the waste of resources due to repeated investment in products with similar structures but slightly different dimensions.

Method used

Design a common mold structure for multiple products, using replaceable punches and ejector pins to achieve stamping processing of different products, reduce overall mold replacement, and improve mold reuse rate and production flexibility.

Benefits of technology

Significantly shorten product changeover time, reduce equipment investment and costs, increase mold reuse rate, and improve production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to mould technical field especially is a kind of multi-product common die structure, including lower bolster plate, the upper surface both sides of lower bolster plate are all fixedly connected with lower foot pad, the top of lower foot pad is fixedly connected with lower die holder, the upper surface of lower die holder is installed with lower backing plate, the upper surface of lower backing plate is fixedly connected with guide pillar.The utility model can be punched to product one by the setting of drawing punch, punching punch, chamfering punch, ejector pin one and ejector pin two, and it can be replaced design, can be replaced as drawing punch two, punching punch two, chamfering punch two, ejector pin five and ejector pin six, so as to be able to punch to product two, so as to realize when switching product without overall replacement mould, greatly shorten product switching time, improve production flexibility, also greatly improve the reuse rate of mould, reduce equipment investment and cost.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a common mold structure for multiple products. Background Technology

[0002] In the field of stamping die manufacturing, traditional dies are usually designed and manufactured individually for a specific product, meaning one die for one product. Each time a new product is produced, a completely new die structure needs to be developed.

[0003] While this approach can meet the needs of precision manufacturing, it also has many significant problems. Each product requires a separate design, processing, and debugging of the mold, making the entire process complex and time-consuming, which affects the rapid production of products. Furthermore, because the structure cannot be shared, companies need to invest a lot of money to make multiple sets of molds, especially for products with similar structures but slightly different dimensions, resulting in repeated investment and waste of resources. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a common mold structure for multiple products, which solves the problem that each product needs to have its own mold designed, processed, and debugged, resulting in a complex and time-consuming process that hinders rapid product launch. Furthermore, because the structure cannot be shared, companies need to invest heavily in making multiple sets of molds, especially for products with similar structures but slightly different dimensions, leading to redundant investment and wasted resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a common mold structure for multiple products, including a lower support plate, with lower pads fixedly connected to both sides of the upper surface of the lower support plate, a lower mold base fixedly connected to the top of the lower pads, a lower pad plate installed on the upper surface of the lower mold base, a guide post fixedly connected to the upper surface of the lower pad plate, an upper mold base slidably connected to the outer wall of the guide post, an upper pad plate fixedly connected to the lower surface of the upper mold base, and a lower surface of the upper pad plate... A stretching punch is installed on the side. The lower surface of the upper pad is detachably equipped with a stretching punch, a forming punch, a punching punch, a chamfering punch, a ejector pin, and an ejector pin. The bottom end of the punching punch is provided with a punching cutter. A chamfering insert is provided in the middle of the upper surface of the lower pad. The chamfering insert corresponds to the chamfering punch. The lower surface of the upper pad is detachably equipped with a stretching punch, a punching punch, a chamfering punch, an ejector pin, and an ejector pin.

[0006] As a preferred embodiment of this utility model, an upper clamping plate is installed on the lower surface of the upper pad, a stop plate is installed on the lower surface of the upper clamping plate, an upper release plate is installed on the lower surface of the stop plate, and a lower template is installed on the upper surface of the lower pad.

[0007] As a preferred technical solution of this utility model, an equal-height sleeve is installed on one side of the lower surface of the upper mold base, and a spring is installed on the other side of the lower surface of the upper mold base. The bottom end of the spring is fixedly connected to one side of the upper surface of the upper clamping plate.

[0008] As a preferred technical solution of this utility model, a half-shear punch and a flanging punch are respectively provided on one side of the lower surface of the upper pad. The half-shear punch corresponds to the first ejector pin, and the flanging punch corresponds to the second ejector pin.

[0009] As a preferred technical solution of this utility model, a stretching die and a forming die are respectively provided on one side of the upper surface of the lower pad, the stretching die and the stretching punch are respectively corresponding to each other, and the forming die and the forming punch are respectively corresponding to each other.

[0010] As a preferred embodiment of this utility model, a contour insert is provided in the middle of the upper surface of the lower pad, and the chamfer insert is disposed inside the contour insert.

[0011] As a preferred embodiment of this utility model, a lower die cutting edge and a flanging die are respectively provided on the other side of the upper surface of the lower pad. Ejector pin three and ejector pin four are respectively installed on one side of the lower die base. The lower die cutting edge corresponds to ejector pin one and ejector pin three respectively. The flanging die corresponds to ejector pin two and ejector pin four respectively. Spring two is installed at the bottom end of ejector pin three and ejector pin four. A stop screw is installed at the bottom end of spring two. The stop screw is installed on one side of the lower surface of the lower die base. A float is provided on one side of the lower pad. The outer wall of the float is installed on ejector pin four.

[0012] Compared with the prior art, this utility model provides a common mold structure for multiple products, which has the following characteristics:

[0013] Beneficial effects:

[0014] This multi-product common mold structure allows for the stamping of product one by setting up a drawing punch one, a punching punch one, a chamfering punch one, an ejector pin one, and an ejector pin two. Furthermore, its replaceable design allows for the replacement of the drawing punch two, a punching punch two, a chamfering punch two, an ejector pin five, and an ejector pin six, thus enabling the stamping of product two. This eliminates the need to replace the entire mold when switching products, significantly shortening product changeover time, improving production flexibility, greatly increasing mold reuse rate, and reducing equipment investment and costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Upper mold base; 2. Upper backing plate; 3. Upper clamping plate; 4. Stop plate; 5. Upper ejector plate; 6. Lower mold plate; 7. Lower backing plate; 8. Lower mold base; 9. Lower support foot; 10. Lower support plate; 11. Guide post; 12. Drawing punch one; 13. Equal height sleeve; 14. Forming punch; 15. Punching punch one; 16. Chamfering punch one; 17. Spring one; 18. Ejector pin one; 19. Half-shear punch; 20. Ejector pin two 21. Flanging punch; 22. Drawing die; 23. Forming die; 24. Punching cutter; 25. Chamfering insert; 26. Contouring insert; 27. Lower die cutter; 28. Set screw; 29. ​​Spring 2; 30. Ejector pin 3; 31. Ejector pin 4; 32. Float; 33. Flanging die; 34. Drawing punch 2; 35. Punching punch 2; 36. Chamfering punch 2; 37. Ejector pin 5; 38. Ejector pin 6. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] Please see Figure 1-2 In this embodiment: a common mold structure for multiple products includes a lower support plate 10. Lower feet 9 are fixedly connected to both sides of the upper surface of the lower support plate 10. A lower mold base 8 is fixedly connected to the top of the lower feet 9. A lower pad 7 is installed on the upper surface of the lower mold base 8. A guide post 11 is fixedly connected to the upper surface of the lower pad 7. An upper mold base 1 is slidably connected to the outer wall of the guide post 11. An upper pad 2 is fixedly connected to the lower surface of the upper mold base 1. A drawing punch 12 is installed on one side of the lower surface of the upper pad 2. The surface is sequentially and detachably equipped with a stretching punch 12, a forming punch 14, a punching punch 15, a chamfering punch 16, an ejector pin 18, and an ejector pin 20. The bottom end of the punching punch 15 is provided with a punching cutter 24. The upper surface of the lower pad 7 is provided with a chamfering insert 25 in the middle, which corresponds to the chamfering punch 16. The lower surface of the upper pad 2 is sequentially and detachably equipped with a stretching punch 24, a punching punch 25, a chamfering punch 26, an ejector pin 5, and an ejector pin 6.

[0021] In this embodiment, the operator places the sheet metal to be processed into the positioning area of ​​the mold. The lower template 6 is fixed by the positioning block. The punch press is started, and the upper mold moves downward under the guidance of the guide post 11 to start the stamping process. The drawing punch draws the sheet metal deep. The punching punch completes the processing of the required holes. The chamfering punch completes the edge trimming. The flanging punch 21 and the die assist in forming or edge trimming. The drawing punch 12, punching punch 15, chamfering punch 16, ejector pin 18 and ejector pin 20 can be set to stamp product 1. They are designed to be replaceable and can be replaced with drawing punch 24, punching punch 25, chamfering punch 26, ejector pin 5 and ejector pin 6 38 to stamp product 2. This allows for stamping of product 2 without replacing the entire mold when switching products, greatly shortening the product changeover time, improving production flexibility, and also greatly increasing the mold reuse rate and reducing equipment investment and costs.

[0022] Preferably, an upper clamping plate (3) is installed on the lower surface of the upper pad (2), a stop plate (4) is installed on the lower surface of the upper clamping plate (3), an upper release plate (5) is installed on the lower surface of the stop plate (4), and a lower template (6) is installed on the upper surface of the lower pad (7); an equal-height sleeve (13) is installed on one side of the lower surface of the upper mold base (1), and a spring (17) is installed on the other side of the lower surface of the upper mold base (1), with the bottom end of the spring (17) fixedly connected to the upper clamping plate. On one side of the upper surface of plate (3); on one side of the lower surface of upper pad plate (2), a half-shear punch (19) and a flanging punch (21) are respectively provided, the half-shear punch (19) corresponding to ejector pin one (18), and the flanging punch (21) corresponding to ejector pin two (20); on one side of the upper surface of lower pad plate (7), a stretching die (22) and a forming die (23) are respectively provided, the stretching die (22) corresponding to stretching punch one (12), and the forming die (23) Corresponding to the forming punch (14); a contour insert (26) is provided in the middle of the upper surface of the lower pad (7), and the chamfer insert (25) is provided in the contour insert (26); a lower die cutter (27) and a flanging die (33) are respectively provided on the other side of the upper surface of the lower pad (7); a third ejector pin (30) and a fourth ejector pin (31) are respectively installed on one side of the lower die base (8); the lower die cutter (27) corresponds to the first ejector pin (18) and the third ejector pin (30) respectively. The flange die (33) corresponds to ejector pin two (20) and ejector pin four (31) respectively. The bottom ends of ejector pin three (30) and ejector pin four (31) are each equipped with spring two (29). The bottom ends of spring two (29) are each equipped with a stop screw (28). The stop screw (28) is installed on one side of the lower surface of the lower die base (8). A float block (32) is provided on one side of the lower pad plate (7). The outer wall of the float block (32) is installed on ejector pin four (31).

[0023] Among them, the upper ejector plate 5 cooperates with the spring mechanism to eject the workpiece adhering to the punch; the ejector pin pushes the workpiece and scrap away from the lower die; the float block 32 and the equal height sleeve 13 ensure that the die is subjected to balanced force and can be stably reset.

[0024] The working principle and usage process of this utility model are as follows: The operator places the sheet material to be processed into the positioning area of ​​the mold. The lower template 6 is fixed by the positioning block. The punch press is started, and the upper mold moves downward under the guidance of the guide post 11 to start the stamping process. The drawing punch draws the sheet material deep. The punching punch completes the processing of the required holes. The chamfering punch completes the edge trimming. The flanging punch 21 and the die assist in forming or edge trimming. The drawing punch 12, punching punch 15, chamfering punch 16, ejector pin 18 and ejector pin 20 are set to stamp product 1. They are designed to be replaceable and can be replaced with drawing punch 24, punching punch 25, chamfering punch 26, ejector pin 5 and ejector pin 6, so that product 2 can be stamped. This eliminates the need to replace the entire mold when switching products, greatly shortens the product changeover time, improves production flexibility, and also greatly improves the mold reuse rate, reducing equipment investment and costs.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A common mold structure for multiple products, including a lower support plate (10), characterized in that: The lower support plate (10) has lower feet (9) fixedly connected to both sides of its upper surface. The lower feet (9) are fixedly connected to the top of a lower die base (8). A lower pad (7) is installed on the upper surface of the lower die base (8). A guide post (11) is fixedly connected to the upper surface of the lower pad (7). An upper die base (1) is slidably connected to the outer wall of the guide post (11). An upper pad (2) is fixedly connected to the lower surface of the upper die base (1). A drawing punch (12) is installed on one side of the lower surface of the upper pad (2). A drawing punch is detachably installed on the lower surface of the upper pad (2). The upper plate (7) is provided with a punching punch (12), a forming punch (14), a punching punch (15), a chamfering punch (16), a ejector pin (18) and an ejector pin (20). The bottom end of the punching punch (15) is provided with a punching cutter (24). The upper surface of the lower plate (7) is provided with a chamfering insert (25). The chamfering insert (25) corresponds to the chamfering punch (16). The lower surface of the upper plate (2) is detachably equipped with a stretching punch (34), a punching punch (35), a chamfering punch (36), an ejector pin (5) and an ejector pin (6) (38).

2. The common-mode structure for multiple products according to claim 1, characterized in that: The lower surface of the upper pad (2) is fitted with an upper clamping plate (3), the lower surface of the upper clamping plate (3) is fitted with a stop plate (4), the lower surface of the stop plate (4) is fitted with an upper release plate (5), and the upper surface of the lower pad (7) is fitted with a lower template (6).

3. The common-mode structure for multiple products according to claim 1, characterized in that: A height-equalizing sleeve (13) is installed on one side of the lower surface of the upper mold base (1), and a spring (17) is installed on the other side of the lower surface of the upper mold base (1). The bottom end of the spring (17) is fixedly connected to one side of the upper surface of the upper clamping plate (3).

4. The common-mode structure for multiple products according to claim 1, characterized in that: The lower surface of the upper pad (2) is provided with a half-shear punch (19) and a flanging punch (21), respectively. The half-shear punch (19) corresponds to the first ejector pin (18), and the flanging punch (21) corresponds to the second ejector pin (20).

5. The common-mode structure for multiple products according to claim 1, characterized in that: The upper surface of the lower pad (7) is provided with a stretching die (22) and a forming die (23) respectively. The stretching die (22) corresponds to the stretching punch (12), and the forming die (23) corresponds to the forming punch (14).

6. The common-mode structure for multiple products according to claim 1, characterized in that: A contour insert (26) is provided in the middle of the upper surface of the lower pad (7), and a chamfer insert (25) is provided inside the contour insert (26).

7. The common-mode structure for multiple products according to claim 1, characterized in that: The lower pad (7) has a lower die cutter (27) and a flanging die (33) respectively on the other side of its upper surface. The lower die base (8) has ejector pin three (30) and ejector pin four (31) respectively installed on one side. The lower die cutter (27) corresponds to ejector pin one (18) and ejector pin three (30) respectively. The flanging die (33) corresponds to ejector pin two (20) and ejector pin four (31) respectively. The bottom ends of ejector pin three (30) and ejector pin four (31) are each equipped with spring two (29). The bottom ends of spring two (29) are each equipped with a stop screw (28). The stop screw (28) is installed on one side of the lower surface of the lower die base (8). The lower pad (7) has a float block (32) on one side. The outer wall of the float block (32) is installed on ejector pin four (31).