Rubber vulcanizing device for rubber sealing element production

By using a mold design that precisely positions the groove and the column and connects the frame and plate, the positioning accuracy and versatility of the rubber vulcanizing device are solved, enabling high-precision production and high-efficiency manufacturing of rubber seals.

CN224224309UActive Publication Date: 2026-05-12NINGBO WENHUI SEALING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO WENHUI SEALING TECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing rubber vulcanizing equipment for producing rubber seals suffers from insufficient positioning accuracy and poor versatility, resulting in inconsistent product dimensions and low production efficiency.

Method used

The mold is designed with precise alignment by using positioning grooves and positioning posts between the base plate and the upper template. The mold can be quickly installed and disassembled by connecting the frame and the plate. Combined with the movable fitting design of the heating plate and the lower template, the mold position is accurate and easy to replace.

Benefits of technology

提高了橡胶密封件的生产精度和一致性,降低了废品率,缩短了模具更换时间,提升了生产效率和设备稳定性。

✦ Generated by Eureka AI based on patent content.

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    Figure CN224224309U_ABST
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Abstract

The utility model discloses a rubber vulcanizing device for rubber sealing element production, which relates to the technical field of rubber sealing element production and comprises a bottom plate, an upper plate is arranged on the upper side of the bottom plate, an upper template is arranged on the lower side of the upper plate, an upper module is fixedly arranged on the lower surface of the upper template, and a heating plate is fixedly arranged on the upper surface of the bottom plate. A heating plate is arranged on the upper surface of the upper plate, a lower mold plate is arranged on the upper surface of the heating plate, a mold groove is formed in the upper surface of the lower mold plate and used in cooperation with an upper mold piece, an air cylinder is fixedly arranged on the upper surface of the upper plate, and the output end of the air cylinder penetrates through the upper plate and is fixedly provided with a lifting plate. The production precision is improved and the rejection rate is reduced through the accurate alignment of the positioning groove and the positioning column and the accurate alignment of the upper die piece and the die groove; meanwhile, due to the design that the clamping frame and the clamping plate are matched with the bolts and the mold plate and the lower mold are positioned, the mold is convenient to replace, and universality is high.
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Description

Technical Field

[0001] This utility model relates to the field of rubber seal production technology, specifically a rubber vulcanization device for rubber seal production. Background Technology

[0002] Rubber sealing strips can quickly return to their original shape after being squeezed or stretched by external forces, ensuring a sealing effect. They also have good resistance to a variety of chemicals and are not easily corroded by oils, acids, alkalis, etc., maintaining stable performance. In the production of rubber seals, the rubber needs to undergo vulcanization processing.

[0003] However, existing technologies still have the following problems:

[0004] First, the positioning accuracy of existing rubber vulcanizing equipment used in the production of rubber seals usually needs to be improved. If the mold shifts during the vulcanization process, the upper mold and the mold groove cannot be accurately aligned, which makes the rubber seals prone to deviation during molding, seriously affecting the dimensional accuracy of the product, resulting in poor product dimensional consistency and a high scrap rate.

[0005] Secondly, existing rubber vulcanizing equipment for producing rubber seals is generally not very versatile. When different types of rubber seals need to be produced and molds need to be changed, the whole process is time-consuming. This not only increases the labor intensity of workers, but also seriously affects the continuity of the production line due to long downtime for mold replacement, resulting in low overall production efficiency and failing to meet the market's demand for rapid production of diversified rubber seals.

[0006] To address the aforementioned problems, the inventors have proposed a rubber vulcanization device for the production of rubber seals. Utility Model Content

[0007] In order to solve the problems of insufficient positioning accuracy and poor versatility of rubber vulcanizing devices used in the production of rubber seals, the purpose of this utility model is to provide a rubber vulcanizing device for the production of rubber seals.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: a rubber vulcanizing device for producing rubber seals, comprising a base plate, an upper plate on the upper side of the base plate, and an upper template on the lower side of the upper plate. An upper mold component is fixedly provided on the lower surface of the upper template. A heating plate is fixedly provided on the upper surface of the base plate, and a lower template is provided on the upper surface of the heating plate. A mold groove is opened on the upper surface of the lower template, and the mold groove cooperates with the upper mold component. A cylinder is fixedly provided on the upper surface of the upper plate, and the output end of the cylinder passes through the upper plate and is fixedly provided with a lifting plate. The lower surface of the lifting plate is detachably connected to the upper template.

[0009] Preferably, the upper surface of the lifting plate is symmetrically provided with reinforcing columns, and the upper end of the reinforcing columns penetrates through the upper plate. The upper surface of the bottom plate is symmetrically provided with support rods, and the upper surface of the support rods is connected to the upper plate by bolts. One side of the support rods is fixedly connected to the upper plate with a reinforcing inclined plate.

[0010] Preferably, the upper surface of the base plate is symmetrically provided with positioning grooves, and the two sides of the lower template are symmetrically fixed with positioning columns, which are movably inserted into the corresponding positioning grooves. A frame is fixedly provided on one side of the upper surface of the lifting plate, and a plate is fixedly provided on one side of the upper template, with the plate being engaged in the frame. The frame and the plate are connected by bolts, and the upper surface of the upper template away from the plate is connected to the lifting plate by bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model ensures the accuracy of mold position during installation and use by using the positioning groove on the base plate to cooperate with the positioning post of the lower template, as well as the precise alignment design between the upper mold and the mold groove. This greatly improves the production precision of rubber seals, ensures the consistency of product dimensions, and reduces the scrap rate.

[0013] 2. The upper template and the lifting plate of this utility model are connected by a frame and a plate, supplemented by bolts. The lower template and the heating plate are designed to fit together flexibly, which facilitates the installation and disassembly of the mold. When it is necessary to change the mold of different specifications to produce different types of rubber seals, the operation can be completed quickly, improving production efficiency and reducing labor intensity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is an exploded view of the cross-section of the card frame and the related structure of the upper plate of this utility model.

[0017] Figure 3 This is an exploded view of the relevant structure of the heating plate of this utility model.

[0018] In the diagram: 1. Base plate; 2. Top plate; 21. Upper template; 22. Upper mold piece; 23. Cylinder; 24. Lifting plate; 25. Reinforcing column; 26. Support rod; 27. Reinforcing inclined plate; 28. Clip frame; 29. ​​Clip plate; 3. Heating plate; 31. Clip plate; 32. Mold groove; 33. Positioning groove; 34. Positioning column. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1-3 As shown, this utility model provides a rubber vulcanizing device for producing rubber seals, including a base plate 1, an upper plate 2 on the upper side of the base plate 1, and an upper template 21 on the lower side of the upper plate 2. Support rods 26 are symmetrically fixed to the upper surface of the base plate 1, and the upper surfaces of the support rods 26 are bolted to the upper plate 2. A reinforcing inclined plate 27 is fixedly connected to one side of the support rods 26 and the upper plate 2. This multi-directional structural reinforcement design allows the entire device to withstand greater pressure during operation, ensuring the stability of the vulcanizing process and extending the equipment's service life. An upper mold 22 is fixedly fixed to the lower surface of the upper template 21, and a heating plate 3 is fixedly fixed to the upper surface of the base plate 1. The upper surface of the hot plate 3 is provided with a lower template 31. The lower surface of the lower template 31 is in contact with the upper surface of the heating plate 3. The heating plate 3 is in direct contact with the lower template 31. The heat transfer path is short and efficient, which can quickly transfer heat to the rubber blank, shorten the vulcanization time, improve production efficiency, and ensure that the rubber blank is heated evenly, which is conducive to improving product quality. The upper surface of the lower template 31 is provided with a mold groove 32, and the mold groove 32 is used in conjunction with the upper mold part 22. The upper mold part 22 is located directly above the mold groove 32. The operator first places the lower template 31 accurately on the heating plate 3 through the positioning post 34 and the positioning groove 33 on the base plate 1, so that the lower template 31 and the heating plate 3 are in good contact. Then, the rubber blank is placed in the mold groove 32 of the lower template 31.

[0021] A cylinder 23 is fixedly installed on the upper surface of the upper plate 2, and the output end of the cylinder 23 passes through the upper plate 2 and is fixedly installed on the lifting plate 24. A reinforcing column 25 is symmetrically fixed on the upper surface of the lifting plate 24, and the upper end of the reinforcing column 25 passes through the upper plate 2. The reinforcing column 25 plays a stabilizing role for the lifting plate 24. The lower surface of the lifting plate 24 is detachably connected to the upper template 21. When the cylinder 23 is activated, the output end of the cylinder 23 pushes the lifting plate 24 to move downward. The lifting plate 24 drives the upper template 21 and the upper mold part 22 fixed on the lower surface of the upper template 21 to descend synchronously. Since the reinforcing column 25 plays a guiding and stabilizing role for the lifting plate 24, the upper mold part 22 can descend accurately towards the top of the mold groove 32. Finally, the upper mold part 22 engages with the mold groove 32, completing the mold closing process.

[0022] After the mold is closed, the heating plate 3 starts to work, and the heat generated is transferred to the lower mold plate 31, which in turn heats the rubber blank in the mold groove 32. During the entire vulcanization process, the upper mold part 22 and the mold groove 32 are closely fitted together, and the pressure continuously applied by the cylinder 23 works together to make the rubber blank complete the vulcanization reaction under high temperature and high pressure, transforming it from its original plastic state into a rubber seal with specific physical and chemical properties. After vulcanization, the output end of the cylinder 23 moves in the opposite direction, driving the lifting plate 24, the upper mold plate 21 and the upper mold part 22 to rise, realizing the mold opening. The operator can easily remove the lower mold plate 31 from the heating plate 3 by cooperating with the positioning column 34 and the positioning groove 33, and take out the vulcanized rubber seal.

[0023] The upper surface of the base plate 1 is symmetrically provided with positioning grooves 33. Positioning posts 34 are symmetrically fixed on both sides of the lower template 31, and the positioning posts 34 are movably inserted into the corresponding positioning grooves 33. A frame 28 is fixedly provided on one side of the upper surface of the lifting plate 24, and a plate 29 is fixedly provided on one side of the upper template 21, with the plate 29 locked within the frame 28. The frame 28 and the plate 29 are connected by bolts. The side of the upper surface of the upper template 21 away from the plate 29 is connected to the lifting plate 24 by bolts. The positioning grooves 33 on the base plate 1 cooperate with the positioning posts 34 of the lower template 31. The precise alignment design of the upper mold 22 and the mold groove 32 ensures the accuracy of the mold position during installation and use, greatly improving the production precision of rubber seals, ensuring product size consistency, and reducing scrap rate. The upper template 21 and the lifting plate 24 are connected by a clamping frame 28 and a clamping plate 29, supplemented by bolt connection. The movable fitting design of the lower template 31 and the heating plate 3 facilitates the installation and disassembly of the mold. When it is necessary to change the mold of different specifications to produce different types of rubber seals, the operation can be completed quickly, improving production efficiency and reducing labor intensity.

[0024] Working principle: The operator first places the lower template 31 into the heating plate 3 by cooperating with the positioning groove 33 on the base plate 1 through the positioning column 34, so that the lower template 31 and the heating plate 3 fit well together. Then, the rubber blank is placed in the mold groove 32 of the lower template 31.

[0025] When cylinder 23 is activated, the output end of cylinder 23 pushes the lifting plate 24 downward. The lifting plate 24 drives the upper template 21 and the upper mold part 22 fixed on the lower surface of the upper template 21 to descend synchronously. Since the reinforcing column 25 plays a guiding and strengthening role for the lifting plate 24, the upper mold part 22 can descend accurately towards the top of the mold groove 32. Finally, the upper mold part 22 engages with the mold groove 32, completing the mold closing process.

[0026] After the mold is closed, the heating plate 3 starts to work, and the heat generated is transferred to the lower mold plate 31, which in turn heats the rubber blank in the mold groove 32. During the entire vulcanization process, the upper mold part 22 and the mold groove 32 are closely fitted, and the pressure continuously applied by the cylinder 23 works together to make the rubber blank complete the vulcanization reaction under high temperature and high pressure, transforming it from the original plastic state into a rubber seal with specific physical and chemical properties.

[0027] After vulcanization, the output end of cylinder 23 moves in the opposite direction, driving the lifting plate 24, upper template 21 and upper mold part 22 to rise, realizing mold opening. The operator can easily remove the lower template 31 from the heating plate 3 and take out the vulcanized rubber seal by cooperating with the positioning column 34 and the positioning groove 33.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rubber vulcanizing apparatus for producing rubber seals, comprising a base plate (1), characterized in that: The base plate (1) has an upper plate (2) on its upper side and an upper template (21) on its lower side. An upper mold (22) is fixedly provided on the lower surface of the upper template (21). A heating plate (3) is fixedly provided on the upper surface of the base plate (1) and a lower template (31) is provided on the upper surface of the heating plate (3). A mold groove (32) is opened on the upper surface of the lower template (31) and is used in conjunction with the upper mold (22). A cylinder (23) is fixedly provided on the upper surface of the upper plate (2) and the output end of the cylinder (23) passes through the upper plate (2) and is fixedly provided with a lifting plate (24). The lower surface of the lifting plate (24) is detachably connected to the upper template (21).

2. The rubber vulcanizing apparatus for producing rubber seals as described in claim 1, characterized in that: The upper surface of the base plate (1) is symmetrically provided with positioning grooves (33), and the two sides of the lower template (31) are symmetrically fixed with positioning columns (34), and the positioning columns (34) are movably inserted into the corresponding positioning grooves (33).

3. The rubber vulcanizing apparatus for producing rubber seals as described in claim 1, characterized in that: The upper mold (22) is located directly above the mold groove (32).

4. The rubber vulcanizing apparatus for producing rubber seals as described in claim 1, characterized in that: The upper surface of the lifting plate (24) is symmetrically fixed with reinforcing columns (25), and the upper end of the reinforcing column (25) penetrates the upper plate (2).

5. The rubber vulcanizing apparatus for producing rubber seals as described in claim 1, characterized in that: The upper surface of the base plate (1) is symmetrically fixed with support rods (26), and the upper surface of the support rods (26) is connected to the upper plate (2) by bolts.

6. The rubber vulcanizing apparatus for producing rubber seals as described in claim 5, characterized in that: A reinforcing inclined plate (27) is fixedly connected between one side of the support rod (26) and the upper plate (2).

7. The rubber vulcanizing apparatus for producing rubber seals as described in claim 1, characterized in that: A frame (28) is fixedly provided on one side of the upper surface of the lifting plate (24), and a plate (29) is fixedly provided on one side of the upper template (21). The plate (29) is locked in the frame (28). The frame (28) and the plate (29) are connected by bolts. The side of the upper surface of the upper template (21) away from the plate (29) is connected to the lifting plate (24) by bolts.

8. The rubber vulcanizing apparatus for producing rubber seals as described in claim 2, characterized in that: The lower surface of the lower template (31) is in movable contact with the upper surface of the heating plate (3).