Novel spring air sleeve structure of tire mold

Abstract

The utility model discloses a novel spring air sleeve structure of tire mould, including air sleeve casing, elastic part, guide post, sealing assembly and air inlet channel. The air sleeve casing has hollow structure, and elastic part sets up in the shell inside, and guide post can slide and set up in the shell and is connected elastic part, and the one end of guide post projects the shell for connecting ejection structure, and sealing assembly sets up between guide post and shell, and air inlet channel is used to the compressed gas in the shell inside, and promotes guide post movement, and elastic part is used to reset guide post after the air source is disconnected. The structure has realized the synergic effect of pneumatic and spring reset, has improved the stability and reset reliability of ejection action, possesses good sealing performance and adaptability, is applicable to high frequency tire mould working environment.

Description

Technical Field

[0001] This utility model relates to the technical field of spring air sleeves, and in particular to a novel spring air sleeve structure for tire molds. Background Technology

[0002] In tire manufacturing, the opening and closing of molds, forming, and demolding are key processes for achieving accurate tire structure and surface quality. To ensure that the mold fits tightly in the closed state and ejects the tire smoothly during demolding, a pneumatically controlled air-jacket structure is usually installed inside the mold, using air pressure to drive moving parts to complete the ejection action. Existing air-jacket structures are mostly driven by a single air pressure, relying on the on / off state of the air source to achieve the extension and retraction of the guide components.

[0003] However, in practical applications, existing single-pressure structures suffer from problems such as slow response, strong dependence on air source, and incomplete ejection. This is especially true in high-frequency cyclic production or when air source pressure fluctuates significantly, affecting the stability of mold operation and yield. Furthermore, traditional air jackets have simple internal structures and insufficient sealing reliability, making them prone to air leakage due to wear under high temperature and high pressure environments, increasing maintenance costs and downtime.

[0004] In view of this, the inventors specifically designed a novel spring air sleeve structure for tire molds, which led to this invention. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this application is to provide a novel spring air jacket structure for tire molds, which at least solves the problems of slow response, unstable operation and poor sealing of traditional tire mold air jacket structures.

[0006] (II) Technical Solution To solve the above-mentioned technical problems, this utility model provides the following technical solution: This application provides a novel spring-air sleeve structure for tire molds, including: The gas-jacketed housing has a hollow structure; An elastic element is disposed within the gas sleeve housing; A guide post, one end of which is slidably disposed in the gas jacket housing, and the other end of which extends out of the gas jacket housing and is used to connect to the ejection structure, the guide post being connected to the spring member; A sealing assembly is disposed between the guide post and the gas jacket housing; The air intake channel, which is connected to the air jacket housing, is used to introduce compressed gas into the air jacket housing to drive the guide column to move. The spring is used to reset the guide column after the air source is disconnected.

[0007] In a further embodiment, the elastic element is a compression spring.

[0008] In a further embodiment, the outer wall of the guide post is provided with a guide flange, and the inner wall of the gas jacket housing is provided with a sliding guide groove that mates with the guide flange.

[0009] In a further embodiment, a lubricating layer is provided between the guide flange and the sliding guide groove.

[0010] In a further embodiment, the sealing assembly includes a sealing ring mounted on the inner wall of the gas jacket housing, and a pressure cap that presses the sealing ring.

[0011] In a further embodiment, the sealing ring is a rubber sealing ring.

[0012] In a further embodiment, the air intake channel has one port connected to an external air source, and the other end connected to the lower cavity of the air jacket housing.

[0013] In a further embodiment, a one-way valve is provided in the air intake channel.

[0014] In a further embodiment, the gas jacket housing is a metal housing with an anti-corrosion coating on its surface.

[0015] In a further embodiment, the gas jacket housing has threads on its top and bottom.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention has the following advantages: By integrating elastic elements and guide pillars inside the air jacket housing, and forming a linkage structure with sealing components and air intake channels, the coordinated drive of pneumatic and spring forces is realized, which effectively improves the response speed and reset stability of the guide pillars. It solves the problems of slow response, incomplete ejection and poor sealing performance of traditional air jacket structures. At the same time, structural optimization makes the device easier to maintain and more corrosion resistant, making it suitable for high-frequency and heavy-load working environments in tire molds.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] in: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view highlighting the internal structure of the present invention. Figure 1 ; Figure 3 This is a cross-sectional view highlighting the internal structure of the present invention. Figure 2 .

[0019] Label Explanation: 1. Gas jacket housing; 2. Elastic element; 3. Guide post; 4. Sealing assembly; 41. Sealing ring; 42. Gland; 5. Air inlet channel; 6. Guide flange; 7. Sliding guide groove; 8. Lubricating layer; 9. Check valve; 10. Anti-corrosion coating; 11. Thread. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] like Figure 1 As shown, this utility model provides a spring air jacket structure suitable for tire molds, including an air jacket housing 1, an elastic element 2, a guide post 3, a sealing component 4, and an air inlet channel 5. This structure achieves precise movement and rapid reset of the ejection component inside the mold by combining pneumatic and spring reset, and has the advantages of rapid response, compact structure, reliable reset and strong sealing.

[0022] like Figure 2 As shown, the air jacket housing 1 is made of metal, preferably stainless steel or high-strength alloy steel with anti-corrosion treatment, to meet the long-term use requirements of tire molds under complex working conditions such as high temperature, high pressure, and dust. The housing has a hollow cylindrical structure and an anti-corrosion coating 10 on its surface. Threaded connections 11 are provided at its top and bottom for easy disassembly and maintenance.

[0023] The elastic element 2 is located at the bottom inside the gas sleeve housing 1 and is used to provide the restoring force of the guide post 3. In this embodiment, a compression spring is preferably used, with one end fixedly connected to the bottom of the gas sleeve housing 1 and the other end connected to the inner end of the guide post 3. The spring is made of alloy steel with a moderate elastic coefficient to ensure its fatigue resistance and sustained elasticity in high-frequency working cycles.

[0024] like Figure 3 As shown, the guide post 3 is slidably disposed in the air jacket housing 1, with one end extending out of the housing for connection with the ejection mechanism inside the tire mold. Its direction of movement is consistent with the axial direction of the air jacket housing 1. To improve guiding stability, the outer wall of the guide post 3 is provided with a guide flange 6, which cooperates with the sliding guide groove 7 provided on the inner wall of the air jacket housing 1. The guide flange 6 slides axially in the guide groove, which can effectively prevent the guide post 3 from tilting or shaking, and ensure the coaxial accuracy of its movement.

[0025] To reduce frictional resistance, a lubrication layer 8 is provided between the guide flange 6 and the sliding guide groove 7. This lubrication layer 8 can be a solid lubricating coating, such as... Alternatively, it can be a closed grease chamber to reduce the wear of the guide column 3 during high-speed reciprocating motion and improve the system life.

[0026] like Figure 2 As shown, to prevent gas leakage and improve the system's sealing performance, a sealing assembly 4 is provided between the guide post 3 and the gas jacket housing 1. The sealing assembly 4 includes a rubber sealing ring 41 installed on the inner wall of the housing and a pressure cap 42 for pressing the sealing ring 41. The sealing ring 41 is preferably made of high-temperature resistant nitrile rubber or fluororubber to adapt to the high-temperature environment during mold operation. The sealing ring 41 fits tightly with the guide post 3 to effectively prevent compressed gas leakage.

[0027] One end of the air intake channel 5 is connected to an external air source, and the other end passes through the lower part of the air jacket housing 1 and communicates with its internal cavity. Through this air intake channel 5, compressed air can quickly enter the housing, applying an upward thrust to the guide post 3 to achieve the mold ejection action. After the air source is disconnected, the guide post 3 automatically returns to its original position under the action of the elastic element 2, completing one action cycle. To prevent gas backflow, a one-way valve 9 can also be installed in the air intake channel 5 to ensure unidirectional gas entry and enhance the control reliability of the system.

[0028] The entire spring gas sleeve structure adopts a modular design, and each component can be independently disassembled and replaced, facilitating maintenance and repair. It features strong sealing performance, fast response speed, and high structural strength, effectively solving problems such as slow response, incomplete ejection, and short service life in existing gas sleeve technologies. It is particularly suitable for industrial applications in tire molds where frequent opening and closing and high-speed operation are required.

[0029] Furthermore, by optimizing the design of each component structure, such as using sealing rings 41 of different specifications in the sealing assembly 4 and designing different connection methods (such as ball joint connection, screw connection, etc.) at the end of the guide post 3, the applicability of this structure in different mold forms and equipment can be further expanded.

[0030] In summary, this utility model, by coordinating the design of the elastic element 2 with the pneumatic drive and combining various technical means such as guiding and limiting, sealing and preventing leakage, forms a compact and reliable tire mold spring air jacket structure.

[0031] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A novel spring-air sleeve structure for tire molds, characterized in that, include: The gas-jacketed housing has a hollow structure; An elastic element is disposed within the gas sleeve housing; A guide post, one end of which is slidably disposed in the gas sleeve housing, and the other end of which extends out of the gas sleeve housing and is used to connect to the ejection structure, the guide post being connected to the elastic element; A sealing assembly is disposed between the guide post and the gas jacket housing; The air intake channel, which is connected to the air jacket housing, is used to introduce compressed gas into the air jacket housing to drive the guide column to move. The elastic element is used to reset the guide column after the air source is disconnected.

2. The novel spring air sleeve structure for tire molds according to claim 1, characterized in that, The elastic element is a compression spring.

3. The novel spring air sleeve structure for tire molds according to claim 1, characterized in that, The outer wall of the guide post is provided with a guide flange, and the inner wall of the gas jacket housing is provided with a sliding guide groove that mates with the guide flange.

4. The novel spring air sleeve structure for tire molds according to claim 3, characterized in that, A lubricating layer is provided between the guide flange and the sliding guide groove.

5. The novel spring air sleeve structure for tire molds according to claim 1, characterized in that, The sealing assembly includes a sealing ring installed on the inner wall of the gas jacket housing, and a pressure cap that presses the sealing ring.

6. The novel spring air sleeve structure for a tire mold according to claim 5, characterized in that, The sealing ring is a rubber sealing ring.

7. The novel spring air sleeve structure for tire molds according to claim 1, characterized in that, The air intake channel has one port connected to an external air source, and the other end connected to the lower cavity of the air jacket housing.

8. The novel spring air sleeve structure for tire molds according to claim 7, characterized in that, A one-way valve is installed in the air intake channel.

9. The novel spring air sleeve structure for a tire mold according to claim 1, characterized in that, The gas jacket housing is a metal housing with an anti-corrosion coating on its surface.

10. The novel spring air sleeve structure for a tire mold according to claim 1, characterized in that, The gas jacket housing has threads on its top and bottom.

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