Heating fracture prevention tool for rubber plug vulcanization mold

Abstract

The utility model relates to the technical field of molds, in particular to a rubber plug vulcanization mold heating fracture prevention tool which comprises a base, a lower mold and an upper mold are arranged at the upper end of the base, through grooves are symmetrically formed in the upper mold in a penetrating mode, fracture prevention structures are arranged in the two through grooves, and each fracture prevention structure comprises a fan. Two through grooves are formed in the upper die and the lower die, fixing rings are fixedly mounted in the two through grooves, spring shape memory metal is fixedly mounted at the upper ends of the two fixing rings, and sealing plugs are fixedly mounted at the upper ends of the two spring shape memory metal. The spring-shaped memory metal can eject the sealing plug to be located at the heat dissipation barrel, so that sealing between the lower mold and the upper mold can be relieved, meanwhile, through the characteristics of the spring-shaped memory metal, the higher the temperature of the spring-shaped memory metal is, the higher the extending length of the ejected sealing plug is, and the higher the heat dissipation rate of the fan to the lower mold and the upper mold is, so that dynamic heat dissipation can be achieved, and the service life of the fan is prolonged. And thermal fracture is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a tooling for preventing heat-induced breakage of rubber stopper vulcanization molds. Background Technology

[0002] Vulcanizing molds are specialized tools used for molding rubber products. They are usually used in conjunction with vulcanizing machines to vulcanize rubber raw materials into products with specific shapes and properties under certain temperature, pressure and time conditions. The molds are mostly made of mold steel and must have high strength, wear resistance and corrosion resistance.

[0003] A search of Chinese patent publication number "CN208232156U" reveals a "vulcanizing mold". This mold allows for the detachable assembly of the forming cavity of the forming bushing onto the forming mold. When different specifications of workpieces need to be processed, different forming bushings can be replaced accordingly to achieve the forming processing of workpieces of different specifications and improve the versatility of the vulcanizing mold.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. Since vulcanization requires high temperature, repeated high temperature during long-term use can easily cause thermal breakage of the mold. When using the mold, it lacks a heat dissipation structure to prevent heat breakage, which shortens its service life and makes it less practical, and needs to be improved. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a heating-resistant tooling for rubber stopper vulcanization molds, thus solving the technical problem of insufficient practicality of existing molds.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A tooling for preventing heat-induced breakage of a rubber stopper vulcanizing mold, comprising a base, wherein a lower mold and an upper mold are respectively provided on the upper end of the base, and through slots are symmetrically opened inside the upper mold;

[0010] Both of the aforementioned through slots are equipped with anti-breakage structures inside;

[0011] The anti-fracture structure includes a fan, and two fixing rings are fixedly installed inside the two through slots. The two fixing rings are located above the fan. Spring-shaped memory metal is fixedly installed at the upper end of the two fixing rings. The higher the temperature that the two spring-shaped memory metals withstand, the higher their tensile length. Sealing plugs are fixedly installed at the upper end of the two spring-shaped memory metals. Heat sinks are symmetrically fixedly installed at the upper end of the upper mold.

[0012] Preferably, both sealing plugs are slidably installed in the through groove, both sealing plugs are slidably installed in the heat sink, both heat sinks have heat sink grooves through their circumferential surfaces, and both heat sinks are located above the through groove.

[0013] Preferably, the inner walls of the two lower molds are symmetrically provided with storage slots, and the two storage slots are provided with temperature sensors. The upper end of the base is provided with an upper bracket.

[0014] Preferably, the lower end of the upper support is symmetrically fixedly equipped with oil cylinders, the output shafts of the two oil cylinders are fixedly installed with the upper mold, and the inner side of the upper mold is provided with a sulfur injection pipe.

[0015] (III) Beneficial Effects

[0016] Firstly, by setting up an anti-fracture structure, when the temperature between the lower and upper molds is too high, the spring-shaped memory metal will push the sealing plug at the heat dissipation cylinder, thereby releasing the seal between the lower and upper molds and reducing the temperature. At the same time, due to the characteristics of the spring-shaped memory metal, the higher the temperature, the longer the sealing plug extends, and the higher the heat dissipation rate of the fan to the lower and upper molds, thus achieving dynamic heat dissipation, greatly improving heat dissipation efficiency, avoiding thermal fracture, and increasing service life.

[0017] Secondly, by setting a temperature sensor, it can monitor the temperature between the lower mold and the upper mold. If the temperature between the lower mold and the upper mold is too high, the temperature sensor will rely on the external PLC controller to turn on the fan for forced heat dissipation, and in conjunction with the anti-breakage structure, it can improve the heat dissipation efficiency. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the upper mold connection of this utility model;

[0022] Figure 4 This is a cross-sectional view of the upper mold of this utility model;

[0023] Figure 5 This is an exploded structural diagram of the spring-shaped memory metal connection of this utility model.

[0024] Legend: 11. Base; 12. Lower mold; 13. Upper mold; 14. Through groove; 15. Fan; 16. Fixing ring; 17. Spring-shaped memory metal; 18. Sealing plug; 19. Heat sink; 21. Heat sink assembly; 22. Storage slot; 23. Temperature sensor; 24. Upper bracket; 25. Hydraulic cylinder; 26. Sulfur injection pipe. Detailed Implementation

[0025] This application provides a heat-resistant mold for vulcanizing rubber stoppers, effectively solving the technical problem of insufficient practicality of existing molds. By setting an anti-fracture structure, when the temperature between the lower and upper molds is too high, the spring-shaped memory metal will push the sealing plug at the heat dissipation cylinder, thereby releasing the seal between the lower and upper molds and reducing the temperature. At the same time, due to the characteristics of the spring-shaped memory metal, the higher the temperature, the longer the sealing plug extends, and the higher the heat dissipation rate of the fan to the lower and upper molds, thus achieving dynamic heat dissipation, greatly improving heat dissipation efficiency, avoiding thermal fracture, and increasing service life. Furthermore, by setting a temperature sensor, the temperature between the lower and upper molds can be monitored. If the temperature between the lower and upper molds is too high, the temperature sensor will rely on an external PLC controller to turn on the fan for forced heat dissipation, which, in conjunction with the anti-fracture structure, can improve heat dissipation efficiency.

[0026] Example

[0027] like Figures 1-5 As shown, the technical solution in this application embodiment effectively solves the technical problem of insufficient practicality of existing molds. The overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a tooling for preventing heat-induced breakage of a rubber stopper vulcanization mold, including a base 11, with a lower mold 12 and an upper mold 13 respectively provided at the upper end of the base 11, and through grooves 14 symmetrically opened inside the upper mold 13;

[0029] Both through slots 14 are equipped with anti-breakage structures inside;

[0030] The anti-fracture structure includes a fan 15, two through slots 14, each with a fixed ring 16 fixedly installed inside. The two fixed rings 16 are located above the fan 15. The upper ends of the two fixed rings 16 are each fixedly installed with a spring-shaped memory metal 17. The higher the temperature that the two spring-shaped memory metals 17 withstands, the higher their tensile length. The upper ends of the two spring-shaped memory metals 17 are each fixedly installed with a sealing plug 18. The upper ends of the upper mold 13 are each symmetrically fixedly installed with a heat sink 19. The two sealing plugs 18 are slidably installed with the through slots 14 and the two sealing plugs 18 are slidably installed with the heat sink 19. The circumferential surfaces of the two heat sinks 19 are each provided with a heat dissipation groove group 21. The two heat sinks 19 are located above the through slots 14.

[0031] By setting an anti-fracture structure, when the temperature between the lower mold 12 and the upper mold 13 is too high, the spring-shaped memory metal 17 will push the sealing plug 18 to the heat sink 19, thereby releasing the seal between the lower mold 12 and the upper mold 13 and reducing the temperature. At the same time, due to the characteristics of the spring-shaped memory metal 17, the higher its temperature, the longer the sealing plug 18 extends, and the higher the heat dissipation rate of the fan 15 to the lower mold 12 and the upper mold 13, thereby achieving dynamic heat dissipation, greatly improving heat dissipation efficiency, and avoiding thermal fracture.

[0032] The inner walls of the two lower molds 12 are symmetrically provided with storage slots 22, and the two storage slots 22 are provided with temperature sensors 23. The upper end of the base 11 is provided with an upper bracket 24.

[0033] By setting a temperature sensor 23, it can monitor the temperature between the lower mold 12 and the upper mold 13. If the temperature between the lower mold 12 and the upper mold 13 is too high, the temperature sensor 23 will rely on the external PLC controller to turn on the fan 15 for forced heat dissipation, and cooperate with the anti-breakage structure to improve the heat dissipation efficiency.

[0034] Hydraulic cylinders 25 are symmetrically fixedly installed at the lower end of the upper bracket 24. The output shafts of the two hydraulic cylinders 25 are fixedly installed with the upper mold 13. A sulfur injection pipe 26 is provided inside the upper mold 13.

[0035] By setting up the hydraulic cylinder 25, the lower mold 12 and the upper mold 13 can be closed. By setting up the vulcanization pipe 26, the vulcanization treatment of the rubber plug can be completed.

[0036] Working principle:

[0037] The first step is to place the rubber stopper blank into the upper mold 13 and push the upper mold 13 to close with the lower mold 12 through the oil cylinder 25. Then, the sulfur injection pipe 26 will introduce sulfide for vulcanization treatment.

[0038] In the second step, the temperature sensor 23 (the fan 15, temperature sensor 23, and oil cylinder 25 are all controlled by an external PLC controller) will detect the temperature between the lower mold 12 and the upper mold 13. When the temperature between the lower mold 12 and the upper mold 13 is high, the fan 15 will start. At the same time, the spring-shaped memory metal 17 will be stretched, causing the spring-shaped memory metal 17 to push the sealing plug 18 into the heat sink 19, so that the upper mold 13 and the lower mold 12 are in a non-sealed space. The fan 15 can blow the hot air between the lower mold 12 and the upper mold 13 to the outside. At the same time, the higher the temperature, the farther the spring-shaped memory metal 17 pushes the sealing plug 18, the greater the heat dissipation, thereby preventing the heat from breaking.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A rubber plug vulcanization mold anti-heating fracture tool, comprising a base (11), a lower mold (12) and an upper mold (13) are respectively arranged at the upper end of the base (11), characterized in that, The upper mold (13) has symmetrical through slots (14) inside; Both of the through slots (14) are equipped with anti-breakage structures inside; The anti-fracture structure includes a fan (15), and two fixed rings (16) are fixedly installed inside the two through slots (14). The two fixed rings (16) are located above the fan (15). Spring-shaped memory metal (17) is fixedly installed at the upper end of the two fixed rings (16). The higher the temperature that the two spring-shaped memory metal (17) withstands, the higher its tensile length. Among them, the upper ends of the two spring-shaped memory metals (17) are fixedly installed with sealing plugs (18), and the upper ends of the upper mold (13) are symmetrically fixedly installed with heat sinks (19).

2. The anti-heating fracture tooling for the rubber plug vulcanization mold according to claim 1, wherein, Both of the sealing plugs (18) are slidably installed in the through groove (14); Both of the sealing plugs (18) are slidably installed with the heat sink (19).

3. The anti-thermal fracture tooling for rubber diaphragm vulcanization mold according to any one of claims 1-2, characterized in that, Both heat dissipation cylinders (19) have heat dissipation grooves (21) through their circumferential surfaces; Both of the heat dissipation cylinders (19) are located above the through slot (14).

4. The anti-heating fracture tooling for the rubber plug vulcanization mold according to claim 3, characterized in that, The inner walls of both lower molds (12) are symmetrically provided with storage slots (22); Temperature sensors (23) are provided inside both of the storage compartments (22).

5. The anti-heating fracture tooling for rubber plug vulcanization mold according to claim 4, characterized in that, The upper end of the base (11) is provided with an upper bracket (24); Among them, the lower end of the upper bracket (24) is symmetrically fixed with oil cylinders (25).

6. The anti-heating fracture tooling for the rubber plug vulcanization mold according to claim 5, wherein, The output shafts of both hydraulic cylinders (25) are fixedly installed to the upper mold (13); The upper mold (13) is provided with a sulfur injection pipe (26) on its inner side.

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