Rubber product mold convenient to eject out

Abstract

The utility model relates to the field of molds for rubber products, in particular to a mold convenient to eject out for rubber products, and adopts the technical scheme that the mold convenient to eject out for rubber products comprises a supporting platform of a molding press, a lower mold, a cooling tank, a cold water tank and a circulating water pipe, a lower mold is installed on a supporting platform of the molding press, a cooling groove is formed in the lower mold, a cold water tank located on the rear side of the lower mold is installed on the supporting platform, and two circulating water pipes internally provided with pumps are connected between the cold water tank and the cooling groove. The cold water tank is mounted on the molding press, cooling water in the cold water tank circularly flows into the cooling tank from the cold water tank through the circulating water pipe in a reciprocating manner and then flows into the cold water tank from the cooling tank, and a rubber product in a lower mold is quickly cooled through circulating cold water, so that the rubber product is quickly cooled; the edge of the rubber product is prevented from adhering to the inner wall of the lower mold, and the rubber product is prevented from deforming in the demolding process.

Description

Technical Field

[0001] The utility model belongs to the field of molds for rubber products, and particularly relates to a mold for rubber products which is convenient for ejection. Background Art

[0002] Rubber products with good elasticity and wear resistance are often used in the fields of automobiles, industry, medical treatment, construction, etc. During the processing of rubber products, the heated and melted rubber raw materials are often extruded into shape by pressing the upper and lower molds together.

[0003] Currently, during the ejection and demolding process of existing rubber product molds, due to insufficient cooling of the rubber, the edge part of the rubber product often adheres to the inner wall of the lower mold, resulting in deformation of the rubber product during the demolding process.

[0004] Therefore, aiming at the problem that during the ejection and demolding process of the existing rubber product mold, due to insufficient cooling of the rubber, the edge of the rubber product adheres to the inner wall of the lower mold, easily resulting in deformation of the rubber product, the existing mold for rubber products is improved. A cooling groove is opened in the lower mold, and the internal rubber product is cooled faster by the coolant circulated and poured in, preventing the problem that the rubber product adheres to the inner wall during ejection and demolding, resulting in deformation. Summary of the Utility Model

[0005] In order to overcome the problem that during the ejection process of the existing rubber product mold, due to insufficient cooling, the edge of the rubber product adheres to the inner wall of the mold, resulting in deformation of the rubber product.

[0006] The technical solution of the utility model is: a mold for rubber products which is convenient for ejection, including a support platform of a molding press, a lower mold, a cooling groove, a cold water tank and a circulating water pipe; the support platform of the molding press is provided with the lower mold, the cooling groove is opened in the lower mold, the cold water tank is installed on the support platform at the rear side of the lower mold, and two circulating water pipes with built-in pumps are connected between the cold water tank and the cooling groove.

[0007] Preferably, by installing a cold water tank on the molding press, the cooling water in the cold water tank circulates back and forth from the cold water tank into the cooling groove and then from the cooling groove into the cold water tank through the circulating water pipe, and the rubber product in the lower mold is quickly cooled by the circulating cold water.

[0008] As a preference, the bottom end of the lower mold is fixedly connected with a first mounting seat, and four first anchoring holes are opened at the corners of the first mounting seat. The first mounting seat and the lower mold on the first mounting seat are fixed on the support platform together by passing screws as anchoring columns through the first anchoring holes.

[0009] Preferably, a second mounting seat is fixedly connected to the bottom end of the cold water tank. Four second anchoring holes are provided at the corners of the second mounting seat. By passing screws, which serve as anchoring columns, through the second anchoring holes, the second mounting seat and the cold water tank on the second mounting seat are fixed on the support platform.

[0010] Preferably, an ejector block is arranged in the lower mold. A cylinder is installed at the bottom end of the support platform. The piston rod of the cylinder sequentially passes through the support platform, the first mounting seat, and the lower mold from bottom to top. The piston rod of the cylinder is fixedly connected to the bottom end of the ejector block. The cylinder drives the ejector block to move up and down in the lower mold by telescoping the piston rod, so as to extrude the rubber product in the lower mold and realize demoulding.

[0011] Preferably, a box cover is installed on the cold water tank. A spacer is fixedly connected to the upper bottom end of the box cover. There is a gap between the spacer and the cold water tank. The spacer can divide the space inside the cold water tank and separate the water entering the cold water tank from the water flowing from the cold water tank into the cold water trough.

[0012] Preferably, a support plate is fixedly connected to the left side of the spacer. A filter screen is arranged on the support plate. The filter screen is located below the circulating water pipe. The support plate can provide support for the filter screen. Since the support plate is fixedly connected to the spacer, the filter screen can be taken out of the cold water tank by removing the box cover, which is convenient for cleaning the filter screen and preventing the filter screen from being blocked by scale.

[0013] Preferably, insertion holes are provided on the support plate. The bottom end of the filter screen is fixedly connected with insertion posts matching the insertion holes. By aligning the insertion posts with the insertion holes, the filter screen is fixed on the support plate. This installation method is convenient for disassembly and assembly.

[0014] Advantages of the present utility model:

[0015] By installing a cold water tank on the molding press, the cooling water in the cold water tank circulates back and forth from the cold water tank into the cooling tank and then from the cooling tank back into the cold water tank through the circulating water pipe. By circulating the cold water, the rubber product in the lower mold can be quickly cooled down, preventing the edge of the rubber product from adhering to the inner wall of the lower mold and preventing deformation of the rubber product during the demoulding process.

[0016] The filter screen can isolate the scale generated from repeated heating from the cooling water, enabling the cooling water to be recycled and preventing the circulating pipeline from being blocked. Description of the Drawings

[0017] Figure 1 Shown is a schematic cross-sectional three-dimensional structure diagram of the mold for rubber products that is convenient for ejection according to the present utility model;

[0018] Figure 2 Shown is a first three-dimensional structure diagram of the mold for rubber products that is convenient for ejection according to the present utility model;

[0019] Figure 3 Shown is a second three-dimensional structural schematic diagram of the mold for rubber products that is convenient for ejection according to the present utility model;

[0020] Figure 4 Shown is a three-dimensional structural schematic diagram of the lid of the mold for rubber products that is convenient for ejection according to the present utility model;

[0021] Figure 5 Shown is a three-dimensional structural schematic diagram of the filter screen and the plug post of the mold for rubber products that is convenient for ejection according to the present utility model.

[0022] Description of reference numerals: 1, support platform; 2, lower mold; 3, cooling tank; 4, cold water tank; 5, circulating water pipe; 6, first mounting seat; 7, first anchoring hole; 8, second mounting seat; 9, second anchoring hole; 10, ejection block; 11, cylinder; 12, lid; 13, spacer; 14, support plate; 15, filter screen; 16, jack; 17, plug post. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Please refer to Figures 1 - 5 , the present utility model provides an embodiment: A mold for rubber products that is convenient for ejection includes a support platform 1 of a molding press, a lower mold 2, a cooling tank 3, a cold water tank 4, and a circulating water pipe 5; The lower mold 2 is installed on the support platform 1 of the molding press, a cooling tank 3 is provided in the lower mold 2, a cold water tank 4 is installed on the support platform 1 behind the lower mold 2, and two circulating water pipes 5 with built-in pumps are connected between the cold water tank 4 and the cooling tank 3. By installing the cold water tank 4 on the molding press, the cooling water in the cold water tank 4 circulates back and forth from the cold water tank 4 into the cooling tank 3 and then from the cooling tank 3 into the cold water tank 4 through the circulating water pipes 5, and the rubber products in the lower mold 2 are quickly cooled by circulating cold water.

[0025] Please refer to Figures 1 - 3, in this embodiment, a first mounting seat 6 is fixedly connected to the bottom end of the lower mold 2. Four first anchoring holes 7 are provided at the corners of the first mounting seat 6. A second mounting seat 8 is fixedly connected to the bottom end of the cold water tank 4. Four second anchoring holes 9 are provided at the corners of the second mounting seat 8. An ejector block 10 is arranged in the lower mold 2. A cylinder 11 is installed at the bottom end of the support platform 1. The piston rod of the cylinder 11 sequentially passes through the support platform 1, the first mounting seat 6 and the lower mold 2 from bottom to top. The piston rod of the cylinder 11 is fixedly connected to the bottom end of the ejector block 10. By passing screws as anchoring columns through the first anchoring holes 7, the first mounting seat 6 and the lower mold 2 on the first mounting seat 6 are fixed on the support platform 1 together. By passing screws as anchoring columns through the second anchoring holes 9, the second mounting seat 8 and the cold water tank 4 on the second mounting seat 8 are fixed on the support platform 1. The cylinder 11 drives the ejector block 10 to move up and down in the lower mold 2 by telescoping the piston rod, and extrudes the rubber products in the lower mold 2 to realize demoulding.

[0026] Please refer to Figures 4 - 5 , in this embodiment, a tank cover 12 is installed on the cold water tank 4. A spacer plate 13 is fixedly connected to the upper bottom end of the tank cover 12. There is a gap between the spacer plate 13 and the cold water tank 4. A support plate 14 is fixedly connected to the left side of the spacer plate 13. A filter screen 15 is arranged on the support plate 14. The filter screen 15 is located below the circulating water pipe 5. A jack 16 is provided on the support plate 14. A plug post 17 matching the jack 16 is fixedly connected to the bottom end of the filter screen 15. The spacer plate 13 can divide the space in the cold water tank 4 and separate the water entering the cold water tank 4 from the water flowing from the cold water tank 4 into the cold water trough. The support plate 14 can provide support for the filter screen 15, and the support plate 14 is fixedly connected to the spacer plate 13. By removing the tank cover 12, the filter screen 15 can be taken out of the cold water tank 4, which is convenient for cleaning the filter screen 15 and avoiding scale from blocking the filter screen 15. By aligning the plug post 17 with the jack 16, the filter screen 15 is fixed on the support plate 14. Such an installation method is convenient for disassembly and assembly.

[0027] When working, first, the staff passes screws as anchoring columns through the first anchoring holes 7 to fix the first mounting seat 6 and the lower mold 2 on the first mounting seat 6 on the support platform 1 of the molding press. Then, the staff passes screws as anchoring columns through the second anchoring holes 9 to fix the second mounting seat 8 and the cold water tank 4 on the second mounting seat 8 on the support platform 1. Then, the circulating water pipe 5 is installed on the cold water tank 4 and the lower mold 2. Then, cold water as a coolant is poured into the cold water tank 4. Then, the plug post 17 is aligned with the jack 16, and the filter screen 15 is installed on the support plate 14. Then, the support plate 14 and the filter screen 15 are installed into the cold water tank 4, and the tank cover 12 is fixed in the cold water tank 4;

[0028] Then start the molding press. The molding press pours the rubber raw material into the lower mold 2, and then forms it by extrusion in cooperation with the upper mold. During the extrusion process, the circulating water pipe 5 starts the water pump inside, draws out the cold water in the cold water tank 4 and injects it into the cooling tank 3. The heat of the internal rubber product flows into the cold water, and then flows into the cold water tank 4 along the other circulating water pipe 5. The filter screen 15 can separate the scale generated by the cold water when it meets heat from the cold water. The filtered water flows into the cold water tank 4, mixes with the cold water in the tank to play a cooling role, and then is drawn out and injected into the cooling tank 3 again;

[0029] Through repeated cycle cooling, the internal rubber product is quickly cooled. After cooling is completed, the upper mold is moved away, and the air cylinder 11 is started. The piston rod pushes the ejector block to eject the rubber product, realizing the demolding of the rubber product.

[0030] Through the above steps, a cold water tank 4 is installed on the molding press. The cold water in the cold water tank 4 circulates back and forth from the cold water tank 4 to the cooling tank 3 and then from the cooling tank 3 to the cold water tank 4 through the circulating water pipe 5. The rubber product in the lower mold 2 is quickly cooled by the circulating cold water, preventing the edge of the rubber product from adhering to the inner wall of the lower mold 2 and preventing deformation of the rubber product during the demolding process, so as to solve the problem that the edge of the rubber product adheres to the inner wall of the mold due to insufficient cooling during the ejection process of the existing rubber product mold, resulting in deformation of the rubber product.

[0031] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A mold for rubber products that facilitates ejection, comprising a support platform (1) of a molding press and a lower mold (2); characterized in that, It also includes a cooling tank (3), a cold water tank (4) and a circulating water pipe (5); a lower die (2) is installed on the support platform (1) of the molding press, a cooling tank (3) is arranged inside the lower die (2), a cold water tank (4) is installed on the support platform (1) at the rear side of the lower die (2), and two circulating water pipes (5) with built-in pumps are connected between the cold water tank (4) and the cooling tank (3).

2. The mold for rubber products that is convenient for ejection according to claim 1, wherein, A first mounting seat (6) is fixedly connected to the bottom end of the lower die (2), and four first anchoring holes (7) are formed at the corners of the first mounting seat (6).

3. The mold for rubber products that is convenient for ejection according to claim 2, characterized in that, A second mounting seat (8) is fixedly connected to the bottom end of the cold water tank (4), and four second anchoring holes (9) are formed at the corners of the second mounting seat (8).

4. The mold for rubber products that is convenient for ejection according to claim 3, wherein, An ejector block (10) is arranged inside the lower die (2), a cylinder (11) is installed at the bottom end of the support platform (1), and the piston rod of the cylinder (11) sequentially passes through the support platform (1), the first mounting seat (6) and the lower die (2) from bottom to top, and the piston rod of the cylinder (11) is fixedly connected to the bottom end of the ejector block (10).

5. The mold for rubber products facilitating ejection according to claim 4, characterized in that, A tank cover (12) is installed on the cold water tank (4), a spacer plate (13) is fixedly connected to the upper bottom end of the tank cover (12), and there is a gap between the spacer plate (13) and the cold water tank (4).

6. The mold for rubber products facilitating ejection according to claim 5, characterized in that, A support plate (14) is fixedly connected to the left side of the spacer plate (13), a filter screen (15) is arranged on the support plate (14), and the filter screen (15) is located below the circulating water pipe (5).

7. The mold for rubber products facilitating ejection according to claim 6, characterized in that, A jack (16) is formed on the support plate (14), and a plug post (17) matching the jack (16) is fixedly connected to the bottom end of the filter screen (15).

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