Hot press forming die for high-temperature-resistant rubber product

Abstract

The utility model discloses a hot press forming mould of high temperature resistant rubber product, including upper module, lower module, thermal insulation subassembly and positioning subassembly, thermal insulation subassembly includes upper vacuum cover fixed installation in the upper module and upper heating device fixed installation on the bottom of upper vacuum cover. According to the hot-press forming die for the high-temperature-resistant rubber product, the upper vacuum cover and the lower vacuum cover which are arranged in the upper die block and the lower die block can clamp the upper end and the lower end when the rubber product between the upper pressing plate and the lower forming plate is subjected to hot-press forming; the upper heating device and the lower heating device at the inner end are subjected to heat insulation during heating, the heating efficiency of the hot-press forming die is improved, multiple sets of upper supporting columns and lower supporting columns are arranged and installed between the upper pressing plate and the lower forming plate and between the upper vacuum cover and the lower vacuum cover, the pressing strength of the upper pressing plate and the lower forming plate can be guaranteed, and the pressing quality of the hot-press forming die is improved. And therefore, the problem that the upper heating device and the lower heating device at the inner end are extruded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing molding dies, in particular to a hot pressing molding dies for high temperature resistant rubber products. Background Art

[0002] The hot pressing mold for high temperature resistant rubber products is an important tool specially used for hot pressing of rubber materials. The design of this mold is usually customized according to the shape, size and performance requirements of the required rubber products. The mold is usually made of high-strength and high-wear-resistant materials to ensure that it can maintain good precision and durability under long-term and high-frequency use.

[0003] Existing hot pressing molds, such as the insulating high-temperature vulcanized silicone rubber production hot pressing mold disclosed in publication number CN218776980U, have the advantage of quickly separating the rubber product from the mold. However, after the upper and lower modules of the hot pressing mold are engaged, the internal heating device is heating, and it is inconvenient to insulate the outer edge, which affects its heating efficiency. For this reason, we propose a hot pressing mold for high-temperature resistant rubber products. Utility Model Content

[0004] The main purpose of the utility model is to provide a hot pressing molding die for high temperature resistant rubber products, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A hot pressing molding die for high-temperature resistant rubber products comprises an upper module, a lower module, a thermal insulation component and a positioning component. The thermal insulation component comprises an upper vacuum hood fixedly installed in the upper module, and an upper heating device fixedly installed at the bottom of the upper vacuum hood. An upper pressing plate is also fixedly installed at the inner end of the upper vacuum hood at the bottom of the upper heating device. A plurality of groups of upper supporting columns are arranged and fixedly installed between the inner end of the upper pressing plate and the upper vacuum hood. A lower vacuum hood is also fixedly installed in the lower module. Both the upper vacuum hood and the lower vacuum hood have vacuum structures inside.

[0007] Preferably, the thermal insulation assembly further comprises a slot reserved at the top of the lower vacuum cover, and a lower heating device fixedly mounted at the upper end of the lower vacuum cover, and the upper vacuum cover matches the slot.

[0008] Preferably, the thermal insulation assembly further comprises a lower forming plate fixedly mounted on the inner end of the lower vacuum cover at the upper portion of the lower heating device, and a plurality of groups of lower supporting columns are arranged and fixedly mounted between the bottom of the lower forming plate and the lower vacuum cover.

[0009] Preferably, the positioning assembly includes positioning cylinders and positioning columns fixedly installed at four corners of the upper module and the lower module respectively.

[0010] Preferably, the positioning assembly further comprises an installation cavity provided in the positioning cylinder and a positioning cavity provided at the center of the installation cavity, and the installation cavity matches the positioning column.

[0011] Preferably, the positioning assembly further comprises a positioning pressure plate movably mounted in the positioning cavity, and a spring fixedly mounted on the upper end of the positioning pressure plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, the upper vacuum cover and the lower vacuum cover installed in the upper module and the lower module can be engaged at the upper and lower ends when the rubber product is hot-pressed between the upper pressing plate and the lower forming plate, so as to insulate the upper heating device and the lower heating device at the inner end during heating, thereby enhancing the heating efficiency of the hot-pressing forming mold, and the multiple groups of upper support columns and lower support columns arranged and installed between the upper pressing plate, the lower forming plate and the upper vacuum cover and the lower vacuum cover can also ensure the strength of the upper pressing plate and the lower forming plate during pressing, thereby avoiding the problem of squeezing the upper heating device and the lower heating device at the inner end;

[0014] 2. In the utility model, when the rubber material is placed between the upper module and the lower module, the upper module and the lower module can also be engaged through the positioning tube and the positioning column to first position the positioning column to the lower end of the positioning pressure plate, thereby avoiding the problem of positioning deviation caused by directly pressing the rubber material on the upper end of the lower module after the upper module is engaged, thereby ensuring the positioning accuracy between the upper module and the lower module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a disassembled diagram of the upper module and the lower module of the utility model;

[0017] Figure 3 It is a side sectional view of the upper module and the lower module of the utility model;

[0018] Figure 4 It is a side sectional view of the positioning cylinder and the positioning column of the utility model.

[0019] Reference numerals:

[0020] 100, upper module;

[0021] 200, lower module;

[0022] 300, thermal insulation assembly; 301, upper vacuum cover; 302, upper heating device; 303, upper pressing plate; 304, upper supporting column; 305, lower vacuum cover; 306, card slot; 307, lower heating device; 308, lower molding plate; 309, lower supporting column.

[0023] 400, positioning assembly; 401, positioning cylinder; 402, positioning column; 403, installation cavity; 404, positioning cavity; 405, positioning pressure plate; 406, spring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1:

[0026] like Figure 1-3 As shown, this embodiment provides a hot pressing molding die for a high temperature resistant rubber product, comprising an upper module 100, a lower module 200, a thermal insulation component 300 and a positioning component 400, wherein the thermal insulation component 300 comprises an upper vacuum cover 301 fixedly installed in the upper module 100, and an upper heating device 302 fixedly installed at the bottom of the upper vacuum cover 301, an upper pressing plate 303 is also fixedly installed at the inner end of the upper vacuum cover 301 at the bottom of the upper heating device 302, and a plurality of upper support columns 304 are arranged and fixedly installed between the inner end of the upper pressing plate 303 and the upper vacuum cover 301 ... A lower vacuum cover 305 is also fixedly installed, and the interiors of the upper vacuum cover 301 and the lower vacuum cover 305 are both vacuum structures. The thermal insulation component 300 also includes a slot 306 reserved at the top of the lower vacuum cover 305, and a lower heating device 307 fixedly installed at the upper end of the lower vacuum cover 305. The upper vacuum cover 301 and the slot 306 match each other. The thermal insulation component 300 also includes a lower molding plate 308 fixedly installed at the inner end of the lower vacuum cover 305 above the lower heating device 307, and a plurality of lower support columns 309 are arranged and fixedly installed between the bottom of the lower molding plate 308 and the lower vacuum cover 305.

[0027] Specifically, the hot pressing mold for high temperature resistant rubber products is an important tool specially used for hot pressing molding of rubber materials. The upper vacuum hood 301 and the lower vacuum hood 305 installed in the upper module 100 and the lower module 200 in this hot pressing mold can be engaged at the upper and lower ends when the rubber product is hot pressed between the upper pressing plate 303 and the lower molding plate 308, so as to insulate the upper heating device 302 and the lower heating device 307 at the inner end during heating, thereby enhancing the heating efficiency of this hot pressing mold, and the multiple groups of upper support columns 304 and lower support columns 309 arranged and installed between the upper pressing plate 303, the lower molding plate 308 and the upper vacuum hood 301, the lower vacuum hood 305 can also ensure the strength of the upper pressing plate 303 and the lower molding plate 308 during pressing, thereby avoiding the problem of squeezing the upper heating device 302 and the lower heating device 307 at the inner end.

[0028] Embodiment 2:

[0029] Based on the first embodiment, Figure 4 As shown, the positioning assembly 400 includes a positioning cylinder 401 and a positioning column 402 fixedly installed at the four corners of the upper module 100 and the lower module 200 respectively, the positioning assembly 400 also includes an installation cavity 403 opened in the positioning cylinder 401, and a positioning cavity 404 opened at the center of the installation cavity 403, the installation cavity 403 and the positioning column 402 are matched with each other, the positioning assembly 400 also includes a positioning pressure plate 405 movably installed in the positioning cavity 404, and a spring 406 fixedly installed on the upper end of the positioning pressure plate 405.

[0030] Specifically, when the rubber material is placed between the upper module 100 and the lower module 200 in the hot pressing molding mold, the upper module 100 and the lower module 200 can also be engaged through the positioning tube 401 and the positioning column 402 to first position the positioning column 402 to the lower end of the positioning pressure plate 405, thereby avoiding the problem of positioning deviation caused by directly pressing the rubber material on the upper end of the lower module 200 after the upper module 100 is engaged, thereby ensuring the positioning accuracy between the upper module 100 and the lower module 200.

[0031] The working principle and use process of this utility model:

[0032] After the rubber material on the upper ends of the upper and lower molding plates 308 of the lower module 200 is placed, the upper module 100 can be mounted to the upper ends of the positioning posts 402 on the lower module 200 through the positioning cylinders 401 at the four corners. After the upper module 100 on the upper end of the lower module 200 is installed, the positioning pressure plate 405 in the positioning cylinder 401 will position the positioning posts 402 on the lower module 200 at the bottom of the positioning pressure plate 405 through the spring 406 at its rear end, thereby preventing the upper module 100 from contacting the lower module 200. A rubber material is placed on the upper end of the module 200 to prevent the rubber material from being skewed. When the upper module 100 is pressed down, the upper heating device 302 and the lower heating device 307 inside the upper module 100 and the lower module 200 are heated. The upper vacuum cover 301 and the lower vacuum cover 305 that are engaged with each other after pressing between the upper module 100 and the lower module 200 will also insulate the heating of the inner end upper heating device 302 and the lower heating device 307 from the outside, thereby ensuring its heating efficiency.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hot pressing molding die for a high temperature resistant rubber product, comprising an upper die block (100), a lower die block (200), a thermal insulation component (300) and a positioning component (400), characterized in that: The thermal insulation component (300) comprises an upper vacuum cover (301) fixedly installed in the upper module (100), and an upper heating device (302) fixedly installed at the bottom of the upper vacuum cover (301); an upper pressing plate (303) is also fixedly installed at the inner end of the upper vacuum cover (301) at the bottom of the upper heating device (302); a plurality of groups of upper supporting columns (304) are also arranged and fixedly installed between the inner end of the upper pressing plate (303) and the upper vacuum cover (301); a lower vacuum cover (305) is also fixedly installed in the lower module (200); and the interiors of the upper vacuum cover (301) and the lower vacuum cover (305) are both vacuum structures.

2. The hot pressing molding die for high temperature resistant rubber products according to claim 1, characterized in that: The thermal insulation component (300) further comprises a slot (306) reserved at the top of the lower vacuum cover (305), and a lower heating device (307) fixedly mounted at the upper end of the lower vacuum cover (305), and the upper vacuum cover (301) and the slot (306) are matched with each other.

3. The hot pressing molding die for high temperature resistant rubber products according to claim 1, characterized in that: The thermal insulation assembly (300) further comprises a lower forming plate (308) fixedly mounted on the inner end of the lower vacuum cover (305) at the upper part of the lower heating device (307), and a plurality of groups of lower supporting columns (309) are arranged and fixedly mounted between the bottom of the lower forming plate (308) and the lower vacuum cover (305).

4. The hot pressing molding die for high temperature resistant rubber products according to claim 1, characterized in that: The positioning assembly (400) comprises positioning cylinders (401) and positioning columns (402) respectively fixedly installed at the four corners of the upper module (100) and the lower module (200).

5. The hot pressing molding die for high temperature resistant rubber products according to claim 4, characterized in that: The positioning assembly (400) further comprises an installation cavity (403) provided in the positioning cylinder (401), and a positioning cavity (404) provided at the center of the installation cavity (403), wherein the installation cavity (403) matches the positioning column (402).

6. The hot pressing molding die for high temperature resistant rubber products according to claim 5, characterized in that: The positioning assembly (400) further comprises a positioning pressure plate (405) movably installed in the positioning cavity (404), and a spring (406) fixedly installed on the upper end of the positioning pressure plate (405).

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