Improved tool structure for solving stuffiness problem in product mold pressing process
By designing the core through-forming slot holes in the mold structure, the depth of the forming slot holes is reduced, the hole problems caused by stuffiness during hot pressing of nitrile rubber are solved, and the forming quality is improved.
Patent Information
- Application Number
- CN202420837806.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the hot pressing process of nitrile rubber, the deep bottom depth of the molding slot holes leads to stuffiness, causing holes at the bottom of the valve seat assembly.
By designing the structure of the top formwork, upper formwork, middle formwork and molding formwork, the core penetrates the forming slot hole to form a space for the door seat assembly, reducing the depth of the forming slot hole and ensuring that air can be discharged.
It effectively solves the problem of stuffiness, prevents eyelets from appearing at the bottom of the flap seat assembly, and improves the molding quality.
Smart Images

Figure CN222245779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved tooling structure for solving the problem of air suffocation in a product molding process, and belongs to the technical field of molds. Background Art
[0002] When the valve seat assembly 5 is made of a cylindrical tube-shaped nitrile rubber, the forming template 3 is installed in the middle template 2. The forming template 3 is provided with a core 31 that penetrates the forming slot 11 of the upper template 1. The forming template 3 and the middle template 2 are supported and dragged by the lower template 4. Figure 2 shown.
[0003] Although the valve seat assembly 5 can be hot-pressed, when the nitrile rubber is pressed into the molding slot 11 of the upper mold plate 1, air is easily trapped due to the deep bottom of the molding slot 11, resulting in holes at the bottom of the valve seat assembly 5. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides an improved tooling structure for solving the problem of air suffocation in the product molding process.
[0005] The utility model is realized through the following technical solutions.
[0006] The utility model provides an improved tooling structure for solving the problem of air stuffiness in a product molding process, comprising a top mold plate, an upper mold plate, a middle mold plate and a molding mold plate.
[0007] The top template has a forming slot A at the bottom, and a core A fixedly connected to the top template is disposed in the middle of the forming slot A;
[0008] The top of the upper template is provided with a molding slot, the bottom of the upper template is provided with a middle template, the middle of the middle template is provided with a through hole for installing the molding template, a core is fixed on the molding template, the core passes through the molding slot and contacts the core A, so that the molding slot A and the molding slot form a space for molding the valve seat assembly.
[0009] The top template is fixedly connected to the core A in one piece.
[0010] The upper template and the top template are installed through pins.
[0011] It also includes a lower template, which is installed at the bottom of the middle template and the forming template for support.
[0012] The lower template is installed with the middle template, the upper template and the top template through pins.
[0013] The beneficial effect of the utility model is that after the top template is pressed down with the core A to contact the core, the valve seat assembly is formed in the space formed by the forming slots A and the forming slots. Since a part of the space formed by the valve seat assembly is in the forming slots A, the depth of the forming slots is reduced, making it easy for air to be discharged, thus solving the problem of the deep bottom of the slots causing stuffiness and resulting in holes at the bottom of the valve seat assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the main cross-section of the utility model;
[0015] Figure 2 It is a schematic diagram of the main cross-section of the prior art;
[0016] In the figure: 1-upper template; 11-molding slot; 2-middle template; 3-molding template; 31-core; 4-lower template; 5-valve seat assembly; 6-top template; 61-molding slot A; 62-core A; 7-pin. DETAILED DESCRIPTION
[0017] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.
[0018] like Figure 1 shown.
[0019] The present invention discloses an improved tooling structure for solving the problem of air suffocation during product molding, comprising:
[0020] A top template 6 is provided with a forming slot A61 at the bottom, and a core A62 integrally connected with the top template 6 is provided in the middle of the forming slot A61.
[0021] An upper template 1 is installed below the top template 6 through a pin 7, a molding slot 11 is provided on the top of the upper template 1, a middle template 2 is installed on the bottom of the upper template 1, a through hole is provided in the middle of the middle template 2 to install a molding template 3, a core 31 is integrally formed and fixed on the molding template 3, the core 31 passes through the molding slot 11 and contacts the core A62, so that the molding slot A61 and the molding slot 11 form a space for molding the valve seat assembly 5.
[0022] It also includes a lower template 4, which is installed with the middle template 2, the upper template 1 and the top template 6 through pins (not shown in the figure). The lower template 4 is installed at the bottom of the middle template 2 and the forming template 3 for support.
[0023] After the nitrile rubber is placed in the molding slot A61 and the molding slot 11, after the top template 6 is pressed down with the core A62 to contact the core 31, the valve seat assembly 5 is molded in the space formed by the molding slot A61 and the molding slot 11. Since a part of the space formed by the valve seat assembly 5 is in the molding slot A61, the depth of the molding slot 11 is reduced, making it easy for air to be discharged, solving the problem of stuffiness caused by the deep bottom of the molding slot, which leads to holes at the bottom of the valve seat assembly.
Claims
1. An improved tooling structure for solving the problem of stuffiness during product molding, characterized in that: include: A top template (6), an upper template (1), a middle template (2) and a forming template (3); The top template (6) has a molding slot A (61) at the bottom, and a core A (62) fixedly connected to the top template (6) is disposed in the middle of the molding slot A (61); The upper template (1) has a molding slot (11) at the top, a middle template (2) is installed at the bottom of the upper template (1), a through hole is provided in the middle of the middle template (2) for installing a molding template (3), a core (31) is fixed on the molding template (3), the core (31) passes through the molding slot (11) and contacts the core A (62), so that the molding slot A (61) and the molding slot (11) form a space for molding the valve seat assembly (5).
2. The improved tooling structure for solving the problem of air suffocation during product molding process as claimed in claim 1, characterized in that: The top mold plate (6) is integrally fixedly connected to the core A (62).
3. The improved tooling structure for solving the problem of air suffocation during product molding as claimed in claim 1, characterized in that: The upper template (1) and the top template (6) are mounted via pins (7).
4. The improved tooling structure for solving the problem of air suffocation during product molding as claimed in claim 1, characterized in that: It also includes a lower template (4), which is installed at the bottom of the middle template (2) and the forming template (3) for support.
5. The improved tooling structure for solving the problem of air suffocation during product molding as claimed in claim 4, characterized in that: The lower template (4) is installed with the middle template (2), the upper template (1) and the top template (6) via pins.
