A mechanism for controlling the sequence of action of a mold platen

By using nitrogen springs and cylinder limiting mechanisms in the stamping die, the stamping process of the sheet metal is controlled, solving the problem of sheet metal deformation caused by incomplete release of spring pressure, and improving product quality and precision.

CN224406230UActive Publication Date: 2026-06-26天津星原工业科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
天津星原工业科技有限公司
Filing Date
2025-08-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing stamping dies, the spring pressure is not fully released after stamping, resulting in local deformation of the sheet metal, which affects the dimensional accuracy of parts and product quality.

Method used

Nitrogen springs are used to control the sheet metal stamping process, and the built-in cylinder of the mold pushes the pad block for precise positioning, ensuring that the nitrogen springs fully release their compression and preventing sheet metal deformation.

Benefits of technology

This effectively avoids the problem of sheet deformation caused by incomplete release of spring pressure, thus improving the product molding quality and precision.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224406230U_ABST
    Figure CN224406230U_ABST
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Abstract

The utility model discloses a mechanism of controlling the action sequence of the material pressing plate of the mould relates to the field of forming mould, including upper mould, the lower mould is slidably connected to the bottom end of upper mould, the first forming structure is fixed in the inside of upper mould, the second forming structure is fixed in the inside of lower mould, and the first forming structure includes upper pressure material plate, and the upper pressure material plate bottom fixedly connected with upper forming block, and the upper forming block is in the shape of a Chinese character, this mould utilizes built -in nitrogen gas spring to control the stamping forming process to board material, when stamping operation is carried out, nitrogen gas spring can provide stable and even pressure, ensure that board material is formed according to predetermined shape, after stamping forming procedure is completed, the cylinder built -in in mould pushes the gasket and moves to the appropriate position accurately, and the mould is reliably limited, and this operation can make nitrogen gas spring have enough time to release the compression amount completely, effectively avoid the board deformation problem caused by spring pressure not releasing completely, and greatly improve product forming quality.
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Description

Technical Field

[0001] This utility model relates to the field of molding dies, specifically a mechanism for controlling the action sequence of the die pressing plate. Background Technology

[0002] Stamping dies are crucial piece of equipment in stamping processes. In cold stamping, they are specialized tools used to process metal or non-metal materials into desired parts or semi-finished products. Their working principle involves the interaction of the punch and die in a press, applying pressure to the sheet metal or other material placed between them, causing separation or plastic deformation to obtain parts with the required shape, size, and properties. Stamping dies offer advantages such as high production efficiency, stable product quality, and the ability to process complex shapes.

[0003] In the existing stamping die operation process, when the sheet metal is stamped, the spring plays the role of providing stable pressure to ensure the forming quality. However, after stamping is completed, due to factors such as die structure design or work rhythm, the spring pressure often cannot be completely released immediately. If subsequent operations are carried out directly at this time, the residual pressure will act on the formed sheet metal, causing local deformation of the sheet metal. This not only affects the dimensional accuracy of the parts, but also reduces the overall quality of the product, causing unnecessary losses and troubles in production. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanism for controlling the action sequence of a mold pressing plate, comprising an upper mold, a lower mold slidably connected to the bottom end of the upper mold, a first forming structure fixed inside the upper mold, and a second forming structure fixed inside the lower mold.

[0005] Preferably, the first molding structure includes an upper pressure plate, and an upper molding block is fixedly connected to the bottom end of the upper pressure plate. The upper molding block has a Z-shaped structure.

[0006] Preferably, a cylinder is fixedly connected to one side of the lower mold, and two sets of cylinders are symmetrically fixed to both sides of the lower mold. Each set of cylinders has a set of pads fixedly connected to its output end.

[0007] Preferably, the second molding structure includes a lower pressure plate, and a lower molding block is fixedly connected to the top of the lower pressure plate, the lower molding block corresponding to the upper molding block.

[0008] Preferably, the two sets of pads and the two sets of cylinders are located on both sides above the top of the lower pressure plate.

[0009] Preferably, multiple sets of nitrogen springs are fixed to the top of the upper pressure plate and the bottom of the lower pressure plate. The nitrogen spring located at the top of the upper pressure plate is fixed inside the upper mold, and the nitrogen spring located at the bottom of the lower pressure plate is fixed inside the lower mold.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model proposes a mechanism for controlling the action sequence of the die pressure plate. The die uses a built-in nitrogen spring to control the stamping process of the sheet metal. During the stamping operation, the nitrogen spring can provide stable and uniform pressure to ensure that the sheet metal is formed according to the predetermined shape. After the stamping process is completed, the cylinder built into the die pushes the pad block to move precisely to the appropriate position to reliably limit the die. This operation allows the nitrogen spring to have enough time to release all the compression, effectively avoiding the problem of sheet metal deformation caused by the incomplete release of spring pressure, and greatly improving the product forming quality. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the combination of the first molding structure and the second molding structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the first molding structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the second molding structure of this utility model.

[0017] As shown in the figure: 1. Upper mold; 2. Lower mold; 3. First forming structure; 31. Upper pressure plate; 32. Upper forming block; 4. Second forming structure; 41. Lower pressure plate; 42. Cylinder; 43. Pad block; 44. Lower forming block. Detailed Implementation

[0018] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a mechanism for controlling the action sequence of the mold pressing plate, including an upper mold 1, a lower mold 2 slidably connected to the bottom end of the upper mold 1, a first forming structure 3 fixed inside the upper mold 1, and a second forming structure 4 fixed inside the lower mold 2.

[0020] The mold uses a built-in nitrogen spring to control the stamping process of the sheet metal. During the stamping operation, the nitrogen spring provides stable and uniform pressure to ensure that the sheet metal is formed according to the predetermined shape. After the stamping process is completed, the cylinder 42 built into the mold pushes the pad 43 to move precisely to the appropriate position to reliably limit the mold. This operation allows the nitrogen spring to have enough time to release all the compression, effectively avoiding the problem of sheet metal deformation caused by the spring pressure not being fully released, and greatly improving the product forming quality.

[0021] The first molding structure 3 includes an upper pressure plate 31, and an upper molding block 32 is fixedly connected to the bottom end of the upper pressure plate 31. The upper molding block 32 has a Z-shaped structure.

[0022] A cylinder 42 is fixedly connected to one side of the lower mold 2. There are two sets of cylinders 42, which are symmetrically fixed on both sides of the lower mold 2. A set of pads 43 is fixedly connected to the output end of each set of cylinders 42.

[0023] The second molding structure 4 includes a lower pressure plate 41, and a lower molding block 44 is fixedly connected to the top of the lower pressure plate 41. The lower molding block 44 corresponds to the upper molding block 32.

[0024] Two sets of pads 43 and two sets of cylinders 42 are located on both sides above the top of the lower pressure plate 41, respectively.

[0025] Multiple sets of nitrogen springs are fixed at the top of the upper pressure plate 31 and the bottom of the lower pressure plate 41. The nitrogen spring at the top of the upper pressure plate 31 is fixed inside the upper mold 1, and the nitrogen spring at the bottom of the lower pressure plate 41 is fixed inside the lower mold 2.

[0026] During use, the sheet material to be processed is placed between the upper forming block 32 and the lower forming block 44. At this time, the lower nitrogen spring pushes the lower forming block 44 upward, and simultaneously, the upper nitrogen spring squeezes the upper forming block 32 downward. The sheet material is deformed under pressure and completes the shaping. After shaping, the two sets of cylinders 42 push the two sets of pads 43 inward. The pads 43 block the lower pressure plate 41 and the lower forming block 44. At this time, the upper nitrogen spring pulls the upper forming block 32 upward to reset, while the pads 43 can prevent the lower pressure plate 41 from moving upward simultaneously, effectively avoiding the problem of sheet material deformation caused by the spring pressure not being fully released.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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.

[0029] The contents not described in detail in this specification do not improve upon this application and are all prior art known to those skilled in the art, and therefore are not described in detail.

Claims

1. A mechanism for controlling the sequence of action of a mold platen, characterized by: It includes an upper mold (1), a lower mold (2) is slidably connected to the bottom end of the upper mold (1), a first forming structure (3) is fixed inside the upper mold (1), and a second forming structure (4) is fixed inside the lower mold (2).

2. A mechanism for controlling the sequence of action of a mold platen according to claim 1, characterized in that: The first molding structure (3) includes an upper pressure plate (31), and an upper molding block (32) is fixedly connected to the bottom end of the upper pressure plate (31). The upper molding block (32) has a Z-shaped structure.

3. The mechanism for controlling the action sequence of the die pressure plate according to claim 2, characterized in that: A cylinder (42) is fixedly connected to one side inside the lower mold (2). There are two sets of cylinders (42) and they are symmetrically fixed to both sides inside the lower mold (2). A set of pads (43) is fixedly connected to the output end of each set of cylinders (42).

4. The mechanism for controlling the action sequence of the die pressure plate according to claim 3, characterized in that: The second molding structure (4) includes a lower pressure plate (41), and a lower molding block (44) is fixedly connected to the top of the lower pressure plate (41). The lower molding block (44) corresponds to the upper molding block (32).

5. The mechanism for controlling the action sequence of the die pressure plate according to claim 4, characterized in that: The two sets of pads (43) and the two sets of cylinders (42) are located on both sides above the top of the lower pressure plate (41).

6. The mechanism for controlling the action sequence of the die pressure plate according to claim 5, characterized in that: Multiple sets of nitrogen springs are fixed at the top of the upper pressure plate (31) and the bottom of the lower pressure plate (41). The nitrogen spring at the top of the upper pressure plate (31) is fixed inside the upper mold (1), and the nitrogen spring at the bottom of the lower pressure plate (41) is fixed inside the lower mold (2).