Rubber mold with cross-shaped insert structure

Abstract

The utility model discloses a rubber mold with a cross-shaped insert structure, which comprises a middle mold plate with an insert through hole in the middle, the middle mold plate is provided with a clamping groove distributed in a cross shape, the clamping groove of the middle mold plate is detachably clamped with a cross-shaped insert, and the cross-shaped insert divides the through hole in the middle of the middle mold plate into four spaced forming cavities. After the rubber product is subjected to hot press molding, the upper mold plate with the upper insert is separated from the lower mold plate with the lower insert, then the cross-shaped insert is firstly taken out from the middle mold plate, only three surfaces of the rubber product are adsorbed with the molding cavity and are not clamped, and then the rubber product is taken out through operation in a space for taking out the cross-shaped insert. The situation that the rubber product is taken out under the four-side adsorption of the forming cavity is avoided, and the problem that the appearance of the rubber product is prone to deformation or scratching due to friction when the rubber product is ejected out of the forming cavity is solved.

Description

Technical Field

[0001] The utility model relates to a rubber mold with a cross-shaped insert structure, belonging to the technical field of molds. Background Art

[0002] When preparing rubber products, in order to improve the forming efficiency of rubber products, a four-cavity structure in one mold is sometimes adopted. At this time, the lower insert 11 is installed on the lower template 1, the upper insert 21 is installed on the upper template 2, and four through holes are provided in the middle of the middle template 3 to form four forming cavities 31. The corresponding lower insert 11 and upper insert 21 extend into the forming cavity 31. As Figure 3 shown, rubber material is put into the forming cavity, and the rubber product is hot-pressed and formed by closing the mold.

[0003] After the rubber product is hot-pressed and formed, the rubber product is adsorbed by the molecules on all four sides of the forming cavity 31, resulting in the rubber product being clamped tightly in the forming cavity 31. When the rubber product is ejected from the forming cavity 31, there are problems that the appearance is easily deformed or scratched by friction. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a rubber mold with a cross-shaped insert structure.

[0005] The utility model is realized through the following technical solutions.

[0006] A rubber mold with a cross-shaped insert structure provided by the utility model includes:

[0007] A middle template with an insert through hole in the middle, the middle template is provided with a cross-distributed clamping groove, and the clamping groove of the middle template can be detachably clamped and installed with a cross-shaped insert, and the cross-shaped insert divides the through hole in the middle of the middle template into four spaced forming cavities.

[0008] It also includes a lower template, and four groups of spaced lower inserts are installed on the lower template; the lower inserts on the lower template are correspondingly located at the bottom of the forming cavity

[0009] The diagonal positions of the lower template are both installed in positioning cooperation with the middle template through positioning pins A.

[0010] Through holes are provided at the diagonal positions of the lower template and the diagonal positions of the middle template for the positioning pins A to be inserted for positioning.

[0011] An upper template is installed on the middle template, and four groups of spaced upper inserts are installed on the upper template, and the upper inserts are correspondingly located at the top of the forming cavity.

[0012] The diagonal positions of the upper template are both installed in positioning cooperation with the middle template through positioning pins B.

[0013] Through holes are provided at the diagonal positions of the upper template and the diagonal positions of the middle template for the positioning pins B to be inserted for positioning.

[0014] The beneficial effects of the present utility model are as follows: After the rubber product is hot-pressed and formed, the upper template with the upper insert separates from the lower template with the lower insert, and then the cross-shaped insert is first taken out from the middle template. At this time, the rubber product is only adsorbed on three sides of the forming cavity and not clamped tightly. Then, the rubber product is taken out by operating in the space where the cross-shaped insert is taken out, avoiding the situation where the rubber product is taken out under the adsorption of the four sides of the forming cavity, and solving the problem that the appearance of the rubber product is easily deformed or scratched due to friction when it is ejected from the forming cavity. Description of the Drawings

[0015] Figure 1 is a schematic assembly structure diagram of the present utility model;

[0016] Figure 2 is a schematic structure diagram of the present utility model without the upper template installed;

[0017] Figure 3 is a schematic assembly structure diagram of the prior art;

[0018] In the figure: 1 - lower template; 11 - lower insert; 12 - positioning pin A; 2 - upper template; 21 - upper insert; 22 - positioning pin B; 3 - middle template; 31 - insert through hole; 32 - cross-shaped insert; 33 - card slot. Detailed Embodiments

[0019] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0020] As Figures 1 to 2 shown.

[0021] A rubber mold with a cross-shaped insert structure of the present application includes:

[0022] A lower template 1 installed with four groups of lower inserts 11 distributed at intervals, a middle template 3 is installed on the lower template 1. There is an insert through hole in the middle of the middle template 3. The middle template 3 on the side of the through hole is provided with cross-distributed card slots 33. The cross-shaped insert 32 can be detachably clamped into the card slots of the middle template 3. The cross-shaped insert 32 divides the through hole in the middle of the middle template 3 into four spaced forming cavities 31. The lower inserts 11 on the lower template 1 are correspondingly located at the bottom of the forming cavities 31.

[0023] The diagonal positions of the lower template 1 are both installed in positioning cooperation with the middle template 3 through positioning pins A 12; through holes are provided at the diagonal positions of the lower template 1 and the diagonal positions of the middle template 3 for the positioning pins A 12 to be inserted for positioning.

[0024] An upper template 2 is installed on the middle template 3, and four groups of upper inserts 21 are installed on the upper template 2 and are distributed at intervals. The upper inserts 21 are correspondingly located at the top of the molding cavity 31. The diagonal positions of the upper template 2 are both installed in positioning cooperation with the middle template 3 through positioning pins B22; through holes are provided at the diagonal positions of the upper template 2 and the diagonal positions of the middle template 3 for the positioning pins B22 to be inserted for positioning.

[0025] A cross-shaped insert 32 is installed in the card slot 33 of the middle template 3. The rubber compound is placed into four spaced molding cavities 31. The upper template 2 with the upper inserts 21 and the lower template 1 with the lower inserts 11 are closed to perform hot pressing on the rubber product. After the rubber product is hot pressed and formed, the upper template 2 with the upper inserts 21 and the lower template 1 with the lower inserts 11 are separated. Then, the cross-shaped insert 32 is first taken out from the middle template 3. At this time, the rubber product is only adsorbed on three sides with the molding cavity 31 and is not clamped tightly. Then, the rubber product is taken out by operating in the space where the cross-shaped insert 32 is taken out, avoiding the situation where the rubber product is taken out under the adsorption of the four sides of the molding cavity 31, and solving the problem that the appearance of the rubber product is easily deformed or scratched due to friction when being ejected from the molding cavity 31.

Claims

1. A rubber mold with a cross-shaped insert structure, characterized in that: include: A middle template (3) is provided with an insert through hole in the middle, and the middle template (3) is provided with cross-distributed slots (33). A cross-shaped insert (32) is removably inserted into the slot of the middle template (3), and the cross-shaped insert (32) divides the middle through hole of the middle template (3) into four spaced-apart molding cavities (31).

2. The rubber mold with a cross-shaped insert structure as claimed in claim 1, characterized in that: It also comprises a lower template (1), on which four groups of lower inserts (11) are installed and spaced apart from each other; the lower inserts (11) on the lower template (1) are located at the bottom of the molding cavity (31) correspondingly.

3. The rubber mold of the cross-shaped insert structure as claimed in claim 2, characterized in that: The diagonal positions of the lower template (1) are positioned and matched with the middle template (3) through positioning pins A (12).

4. The rubber mold of the cross-shaped insert structure as claimed in claim 3, characterized in that: The diagonal positions of the lower template (1) and the diagonal positions of the middle template (3) are both provided with through holes for inserting positioning pins A (12) for positioning.

5. The rubber mold with a cross-shaped insert structure as claimed in claim 1, characterized in that: The middle template (3) is provided with an upper template (2), and the upper template (2) is provided with four groups of upper inserts (21) distributed at intervals, and the upper inserts (21) are located at the top of the molding cavity (31) accordingly.

6. The rubber mold with a cross-shaped insert structure as claimed in claim 5, characterized in that: The diagonal positions of the upper template (2) are positioned and matched with the middle template (3) through positioning pins B (22).

7. The rubber mold with a cross-shaped insert structure as claimed in claim 6, characterized in that: The diagonal positions of the upper template (2) and the diagonal positions of the middle template (3) are both provided with through holes for the positioning pins B (22) to be inserted for positioning.

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