Rubber vulcanization equipment

Abstract

The utility model provides rubber vulcanization equipment which comprises a vulcanization kettle, a kettle body and a kettle cover which are buckled to form a closed cavity, a partition plate is arranged at the lower end in the kettle body, a cylindrical inner mold is placed on the partition plate, a through hole is formed in the center of the partition plate, the lower side of the partition plate is connected with the kettle body through a supporting plate, and the supporting plate is of a hollow structure. A rubber sleeve is arranged on the outer circumference of the inner mold, an inner cavity of the supporting plate is connected with an inner cavity of the inner mold through a through hole in the partition plate, the partition plate, the supporting plate, the inner mold with the rubber sleeve and the upper cover plate enable the interior of the vulcanization kettle to form a kettle outer cavity and a kettle inner cavity which are not communicated, the kettle outer cavity is provided with an isolation bin, and the isolation bin is detachably placed on the partition plate. The heating efficiency in the vulcanization process is improved, and the purposes of reducing energy consumption and saving cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber vulcanization, in particular to rubber vulcanization equipment. Background Art

[0002] In recent years, the country has widely promoted the concept of energy conservation and emission reduction, and promoted enterprises to upgrade equipment and improve resource utilization. In order to achieve the company's sustainable development and reduce costs and increase efficiency, a series of improvements have been made in resource utilization. In the rubber vulcanization process, such as the vulcanization process of hoses or transmission belts, the steam input is high, but the size of the vulcanization equipment is fixed, while the size of the transmission belts varies. As a result, during the vulcanization process, there will be a large diameter vulcanization equipment with only a smaller transmission belt rubber sleeve placed. In order to achieve high temperature and high pressure vulcanization conditions, more high temperature and high pressure gas must be used to complete the vulcanization, which undoubtedly wastes too much steam. Therefore, the company has made improvements to save steam to reduce heat loss, improve heating efficiency, and achieve the purpose of reducing energy consumption and saving costs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rubber vulcanization equipment, which includes a vulcanizing kettle, wherein the vulcanizing kettle includes a kettle body and a kettle cover, wherein the kettle body and the kettle cover are buckled to form a closed cavity, wherein a partition is arranged at the lower end of the interior of the kettle body, a cylindrical inner mold is placed on the partition, a through hole is arranged at the center of the partition, the lower side of the partition is connected with the kettle body through a support plate, the support plate is a hollow structure, a rubber sleeve is arranged on the outer circumference of the inner mold, the inner cavity of the support plate is connected with the inner cavity of the inner mold through the through hole on the partition, and an upper cover plate is also included, wherein the partition, the support plate, the inner mold with the rubber sleeve and the upper cover plate form two unconnected kettle outer cavities and kettle inner cavity inside the vulcanizing kettle, and the kettle outer cavity is provided with an isolation chamber, and the isolation chamber is detachably placed on the partition plate.

[0004] The isolation chamber is cylindrical, including an inner wall and an outer wall, and a hollow closed structure is formed between the inner wall and the outer wall, so as to reduce the weight of the two parts and increase the volume.

[0005] The isolation chamber is composed of two or more independent cavities, and adopts a matching design to reduce the weight of individual parts while reducing excess size.

[0006] A relief groove connecting the inner wall and the outer wall is partially provided at the bottom of the isolation chamber to facilitate the rapid circulation of steam.

[0007] A pair of lifting holes is provided on the top of the isolation chamber for easy lifting.

[0008] The upper cover plate is fixedly connected with the kettle cover.

[0009] The partition plate and the support plate are welded into an integral structure to reduce the leakage of gas in the inner and outer cavities.

[0010] Preferably, the support plate is a hollow cylindrical structure.

[0011] The rubber vulcanization equipment of the utility model can improve the heating efficiency in the vulcanization process, thereby achieving the purpose of reducing energy consumption and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , schematic diagram of rubber vulcanization equipment;

[0013] Figure 2 , Schematic diagram of the isolation chamber;

[0014] Figure 3 , a cross-sectional view of the isolation chamber;

[0015] Figure 4 , schematic diagram of double isolation chamber.

[0016] In the figure, 1, vulcanizing kettle; 2, outer cavity of kettle; 3, inner mold; 4, isolation chamber; 5, outer air inlet pipe; 6, inner air inlet pipe; 7, inner drain pipe; 8, outer drain pipe; 9, inner cavity of kettle; 10, rubber sleeve; 11, partition; 12, support plate; 13, avoidance groove; 14, hanging hole, 41, second isolation chamber. DETAILED DESCRIPTION

[0017] like Figure 1 to Figure 4 As shown, the rubber vulcanization equipment includes a vulcanizing kettle 1, which generally includes a kettle body and a kettle cover. The kettle body is a canned structure with a hollow interior, and the kettle cover is closed to form a closed space with the outside world. A partition 11 is arranged at the lower end inside the vulcanizing kettle 1 for placing an inner mold 3, and the inner mold 3 has an inner mold cavity inside, and a rubber sleeve 10 is arranged on the outer circumferential surface of the inner mold 3. The partition 11 is a disc structure, and a through hole is arranged in the center of the partition. A support plate 12 is arranged on the lower side of the partition, preferably in the middle part, and the partition 11 is placed on the support plate 12. The support plate 12 and the partition 11 can be a structure welded together to reduce the leakage of gas between the inner cavity of the kettle and the outer cavity of the kettle, or it can be an installation structure. If it is an installation structure, a sealing structure is arranged between the support plate 12 and the partition 11 and a sealing ring is installed. The support plate 12 is a hollow structure, that is, the inner cavity of the support plate, preferably a hollow cylindrical structure. The inner cavity of the inner mold is connected to the inner cavity of the support plate through the through hole on the partition 11. When the top of the inner mold is covered with an upper cover plate (not shown), the partition plate 11, the support plate 12, the inner mold 3 with the rubber sleeve 10 and the upper cover plate in the kettle form two unconnected cavities in the kettle, namely, the kettle outer cavity 2 and the kettle inner cavity 9. The kettle outer cavity forms a communication path through the outer air inlet pipe 5 and the outer drain pipe 8, and the kettle inner cavity forms a communication path through the inner air inlet pipe 6 and the inner drain pipe 7. The upper cover plate can be installed on the kettle cover or can be a separate part.

[0018] The vulcanizing kettle is generally made according to the inner mold of the larger diameter because it is necessary to vulcanize both the rubber sleeve with a larger diameter and the rubber sleeve with a smaller diameter according to production needs. When vulcanizing the rubber sleeve with a smaller diameter, a larger amount of gas is required to be introduced into the vulcanizing kettle to meet the pressure and temperature requirements, which wastes a lot of gas. In order to save energy, when vulcanizing the rubber sleeve with a smaller diameter, the space of the outer cavity of the vulcanizing kettle is larger, and too much high-temperature and high-pressure gas is required. A larger isolation chamber 4 is set in the outer cavity of the vulcanizing kettle to reduce the use of the high-temperature and high-pressure gas in the outer cavity.

[0019] The isolation chamber 4 is cylindrical, with an inner wall diameter greater than the outer diameter of the inner mold 3 and an outer wall diameter less than the inner diameter of the vulcanizing kettle 1. It is preferably detachably placed on the partition 11 and located in the outer chamber 2 of the kettle. Between the inner and outer walls of the isolation chamber is a closed middle cavity of a hollow structure, so that the middle cavity in the isolation chamber is completely isolated from the outside gas, preventing the high-pressure gas in the outer cavity of the vulcanizing kettle from flowing into the middle cavity of the isolation chamber 4, causing energy-saving failure.

[0020] The isolation chamber 4 can be an expanded bladder. It can also be made of the same metal material as the inner mold, such as stainless steel. When using metal materials, in order to reduce the application of materials and reduce weight while increasing the volume, the isolation chamber 4 can be spliced ​​in a cylindrical stack, and each splicing is completely sealed by welding to prevent air exchange in the cavity. For example, two or three independent intermediate cavities are welded as a whole. The bottom of the isolation chamber 4 is flat and convenient for placement on the partition 11. A avoidance groove 13 connected inside and outside is partially set. The avoidance groove 13 connects the inner wall and the outer wall and isolates the intermediate cavity. It is convenient for the outer cavity gas outside the isolation chamber to flow quickly to the periphery of the rubber sleeve, and high-temperature and high-pressure gas is provided to the rubber sleeve in time. When the rubber sleeves with similar vulcanization diameters are vulcanized, the isolation chamber 4 is always placed in the vulcanization kettle, and there is no temperature loss. Therefore, the gas saved is generally determined by the space occupied by the volume of the isolation chamber. When the vulcanization of rubber sleeves with large differences is replaced, the corresponding isolation chamber is replaced.

[0021] In order to reduce the number of spare isolation chambers, a fixed-size isolation chamber is designed based on the inner mold with a small diameter difference. Preferably, two sets of isolation chambers can be used, with an isolation chamber with a larger diameter placed on the outside for vulcanizing rubber with a larger diameter. When replacing a rubber sleeve with a smaller diameter, if the size difference is too large, a second isolation chamber 41 can be placed in the large-diameter isolation chamber, and an inner mold can be placed in the second isolation chamber 41 to further reduce the outer cavity space of the kettle and reduce the number of isolation chambers at the same time. Only two to four isolation chambers are needed to complete the energy saving scheme for vulcanization of rubber sleeves of different diameters. For example, the diameter between the largest and smallest diameters is divided into four types: large, relatively large, medium, and small. Under appropriate circumstances, only one isolation chamber with a large or relatively large diameter is used, and the other two are selected for conversion, such as a large-set medium, or a relatively large-set medium, a relatively large-set small, to convert different diameters and achieve reasonable isolation of the outer cavity space of the kettle.

[0022] In order to facilitate the replacement of the isolation chamber, a pair or two pairs of lifting holes are provided on the top of the isolation chamber, so that the lifting tool can hook the lifting holes 14 and lift out the vulcanizing kettle.

Claims

1. A rubber vulcanization device, comprising a vulcanizing kettle, wherein the vulcanizing kettle comprises a kettle body and a kettle cover, wherein the kettle body and the kettle cover are buckled to form a closed cavity, wherein a partition is arranged at the lower end of the kettle body, a cylindrical inner mold is placed on the partition, a through hole is arranged at the center of the partition, the lower side of the partition is connected to the kettle body through a support plate, the support plate is a hollow structure, a rubber sleeve is arranged on the outer circumference of the inner mold, and the device is characterized in that: It also includes an upper cover plate. The partition plate, the support plate, the inner mold with a rubber sleeve and the upper cover plate form two unconnected outer chambers and an inner chamber inside the vulcanizing autoclave. The outer chamber is provided with an isolation chamber, which is detachably placed on the partition plate.

2. The rubber vulcanization equipment according to claim 1, characterized in that: The isolation chamber is cylindrical and comprises an inner wall and an outer wall, and a hollow closed structure is formed between the inner wall and the outer wall.

3. The rubber vulcanization equipment according to claim 2, characterized in that: The isolation chamber is formed by splicing more than two independent cavities.

4. The rubber vulcanization equipment according to claim 3, characterized in that: A avoidance groove connecting the inner wall and the outer wall is partially arranged at the bottom of the isolation chamber.

5. The rubber vulcanization equipment according to claim 4, characterized in that: A pair of hanging holes is arranged on the top of the isolation bin.

6. The rubber vulcanization equipment according to claim 1, characterized in that: The upper cover plate is fixedly connected with the kettle cover.

7. The rubber vulcanization equipment according to claim 1, characterized in that: The partition plate and the support plate are an integrated structure.

8. The rubber vulcanization equipment according to claim 1, characterized in that: The support plate is a hollow columnar structure.

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