A demolding device for a tire

By using a T-shaped column linkage sealing plate and a dual-mold cooling design, the problem of difficulty in demolding tires after vulcanization is solved, thus improving tire integrity and cooling effect.

CN224391809UActive Publication Date: 2026-06-23SHAOXING COUNTY XUYE MOLD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOXING COUNTY XUYE MOLD CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Tires are difficult to remove from the mold during vulcanization, and forced mechanical demolding may damage the tire surface or internal structure, affecting product quality.

Method used

The design adopts a T-shaped column linkage sealing plate, which uses air pump pressure to push the sealing plate to separate the tire from the mold, and forms a closed-loop cooling circuit through the dual mold water inlet chamber to gradually cool down and stabilize the rubber molecular structure.

Benefits of technology

It effectively reduces tire adhesion to the mold, ensuring tire integrity, and improves cooling effect through gradual cooling, thereby enhancing product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224391809U_ABST
    Figure CN224391809U_ABST
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Abstract

The utility model relates to a kind of demolding device for tire, comprising: base, main mould fixedly connected on base and driven to be vertically direction sliding connection on base and with main mould being oppositely set secondary mould, main mould and secondary mould are all provided with demolding mechanism, demolding mechanism includes: sealing plate, T-type column, air pump, air outlet pipe and solenoid valve, air inlet cavity is set up on main mould, ladder groove that is communicated with air inlet cavity is set up on main mould, sealing plate is slidingly connected in ladder groove, T-type column is elastically slidingly connected in air inlet cavity, and one end of T-type column is slidingly connected with ladder groove, and is fixedly connected with sealing plate, air pump is fixedly connected on base, air pump is communicated with chamber by hose, air outlet pipe is fixedly connected on main mould, and air outlet pipe is communicated with air inlet cavity, solenoid valve is fixedly connected on air outlet pipe, can demould to tire, reduce the case that tire will stick in mould.
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Description

Technical Field

[0001] This utility model relates to the technical field of logistics conveying devices, and in particular to a tire demolding device. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are usually mounted on metal rims, supporting the vehicle body, cushioning external impacts, making contact with the road surface, and ensuring the vehicle's driving performance. In the tire manufacturing process, rubber raw materials are mainly injected into tire molds and then formed through a high-temperature vulcanization process, thus achieving the production of tires.

[0003] However, due to the high temperature and pressure applied during the vulcanization process, the rubber will adhere tightly to the inner surface of the mold. Once the rubber is tightly attached to the mold, the stickiness of the rubber material itself will make it difficult for the molded tire to be directly removed from the mold.

[0004] Furthermore, the interior of a tire that has just completed vulcanization remains at a high temperature, and its molecular structure is not yet fully stable. If a mechanical ejection device is used to forcefully demold the tire in this state, it may damage the tire's surface or internal structure, thereby affecting the quality and performance of the final product. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a tire demolding device that can demold tires.

[0006] To achieve the above objectives, this utility model proposes a tire demolding device, comprising: a base, a main mold fixedly connected to the base, and a secondary mold that is driven to slide vertically on the base and is positioned opposite to the main mold.

[0007] Both the main mold and the secondary mold are equipped with demolding mechanisms;

[0008] The demolding mechanism includes: a sealing plate, a T-shaped column, an air pump, an air outlet pipe, and a solenoid valve.

[0009] The main mold has an air inlet cavity and a stepped groove communicating with the air inlet cavity. The sealing plate is slidably connected in the stepped groove, and the T-shaped column is elastically slidably connected in the air inlet cavity. One end of the T-shaped column is slidably connected to the stepped groove and fixedly connected to the sealing plate.

[0010] The air pump is fixedly connected to the base, and the air pump is connected to the chamber through a flexible hose. The air outlet pipe is fixedly connected to the main mold and is connected to the air inlet chamber. The solenoid valve is fixedly connected to the air outlet pipe.

[0011] Preferably, both the main mold and the secondary mold are provided with water inlet cavities, and the water inlet cavities are connected when the main mold and the secondary mold are in contact. The base is provided with a circulating cooling mechanism, which is connected to the water inlet cavities.

[0012] Preferably, the circulating cooling mechanism includes a storage tank fixedly connected to the base, a liquid pump disposed in the storage tank, and a cooling component disposed on the base and communicating with the storage tank. The liquid pump is disposed in the storage tank and one end is communicating with the water inlet chamber. A circulation pipe is disposed on the main mold and the circulation pipe is communicating with the storage tank.

[0013] Preferably, the cooling component includes a cooler fixedly connected to the base and a second pump fixedly connected to the storage tank. The second pump is located inside the storage tank, and one end of the second pump is connected to the cooler through a pipe. The cooler is connected to the storage tank through a pipe.

[0014] Preferably, a sealing ring is fixedly connected to the main mold, and a sealing groove is provided on the secondary mold for the sealing ring to enter.

[0015] Preferably, a sealing ring is fixedly connected to the sealing groove, and the sealing ring can be attached to the sealing ring.

[0016] Preferably, the main mold is connected to a feed pipe, and a second solenoid valve is fixedly connected to the feed pipe.

[0017] Preferably, a reset rod one is fixedly connected inside the air intake chamber, a reset rod two is slidably connected to the reset rod one, a spring is fixedly connected inside the reset rod one, one end of the spring is fixedly connected to the reset rod two, and one end of the reset rod two is fixedly connected to the T-shaped column.

[0018] The beneficial effects of this utility model compared with the prior art are as follows:

[0019] 1. By adopting the design of T-shaped column linkage sealing plate, the T-shaped column pushes the sealing plate to apply pressure to the tire under the action of air pump pressure, thereby making the tire detach from the mold and reducing the situation where the tire sticks to the mold;

[0020] 2. The dual mold water inlet chambers are connected to form a closed-loop cooling circuit. Coolant is delivered into the water inlet chamber by a liquid pump and transferred to the tire by heat conduction, so as to achieve gradual cooling of the tire after vulcanization, effectively stabilize the rubber molecular structure, and further increase the cooling effect of the tire.

[0021] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram showing the position of the liquid pump of this utility model;

[0024] Figure 3 This is a schematic diagram showing the location of the air intake chamber of this utility model;

[0025] Figure 4 This is a schematic diagram showing the position of the reset rod at point aa in this utility model.

[0026] In the diagram: 1. Base; 2. Main mold; 3. Secondary mold; 4. Sealing plate; 5. T-shaped column; 6. Air pump; 7. Air outlet pipe; 8. Solenoid valve one; 9. Air inlet chamber; 10. Water inlet chamber; 11. Circulating cooling mechanism; 12. Storage tank; 13. Liquid pump one; 14. Cooling component; 15. Circulation pipe; 16. Cooler; 17. Liquid pump two; 18. Sealing ring; 19. Sealing groove; 20. Sealing ring; 21. Feed pipe; 22. Solenoid valve two; 23. Reset rod one; 24. Reset rod two; 25. Spring; 26. Stepped groove. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] like Figures 1 to 4 A tire demolding device includes: a base 1, a main mold 2 fixedly connected to the base 1, and a secondary mold 3 slidably connected to the base 1 in a vertical direction and arranged opposite to the main mold 2. The secondary mold 3 is mainly driven by a cylinder, which is fixedly connected to the base 1 and has an output shaft fixedly connected to the secondary mold 3. Thus, the cylinder can drive the secondary mold 3 to move, thereby achieving the contact between the secondary mold 3 and the main mold 2.

[0032] The demolding device of this utility model also includes a demolding mechanism, which is disposed within the main mold 2 and the secondary mold 3. The demolding mechanism includes:

[0033] The sealing plate 4 and the T-shaped column 5 are provided. The main mold 2 has an air inlet cavity 9 and a stepped groove 26 that communicates with the air inlet cavity 9. The resetting of the sealing plate 4 is mainly achieved by the following: a resetting rod 23 is fixedly connected in the air inlet cavity 9, a resetting rod 24 is slidably connected to the resetting rod 23, a spring 25 is fixedly connected in the resetting rod 23, one end of the spring 25 is fixedly connected to the resetting rod 24, and one end of the resetting rod 24 is fixedly connected to the T-shaped column 5. Therefore, the spring 25 can drive the resetting rod 24 to move, thereby moving the sealing plate 4 and resetting the sealing plate 4 into the stepped groove 26, thus achieving the resetting of the sealing plate 4.

[0034] The system includes an air pump 6, an air outlet pipe 7, and a solenoid valve 8. The air pump 6 is fixedly connected to the base 1 and communicates with the chamber via the air outlet pipe 7. The solenoid valve 8 is fixedly connected to the air outlet pipe 7. When the air pump 6 is activated, airflow enters the chamber through the air outlet pipe 7 and pushes the T-shaped column 5 to move. This causes the T-shaped column to push the sealing plate 4, deforming the workpiece and reducing the amount of workpiece adhering to the mold, thereby achieving demolding of the workpiece.

[0035] Specifically, both the main mold 2 and the secondary mold 3 are provided with water inlet chambers 10. When the main mold 2 and the secondary mold 3 are in contact, the water inlet chambers 10 are connected. A circulating cooling mechanism 11 is provided on the base 1, which is connected to the water inlet chambers 10. The circulating cooling mechanism 11 includes a storage tank 12 fixedly connected to the base 1, a pump 13 disposed in the storage tank 12, and a cooling component 14 disposed on the base 1 and connected to the storage tank 12. The pump 13 is disposed in the storage tank 12, and one end is connected to the water inlet chamber 10. A circulation pipe 15 is provided on the secondary mold 3, which is connected to the storage tank 12. Therefore, water in the storage tank 12 is transferred by the pump 13 and enters the water inlet chamber 10 through the pipe, thereby achieving the cooling of the main mold 2 by cold water. Once the main mold 2 is cooled... Afterwards, the main mold 2 cools the workpiece, thereby achieving workpiece cooling. When water needs cooling, after the water cools the mold, the circulation pipe 15 transmits water through the pipe into the storage tank 12, thereby realizing water circulation. When water needs cooling, the cooling component 14 includes a cooler 16 fixedly connected to the base 1 and a second pump 17 fixedly connected to the storage tank 12. The second pump 17 is located in the storage tank 12, and one end of the second pump 17 is connected to the cooler 16 through a pipe. The cooler 16 is connected to the storage tank 12 through a pipe. When the second pump 17 is started, the second pump 17 draws water from the storage tank 12 into the cooler 16. After the cooler 16 cools the water, the water enters the storage tank 12 through the pipe, thereby achieving cooling of the water in the storage tank 12.

[0036] Specifically, a sealing ring 18 is fixedly connected to the main mold 2, and a sealing groove 19 is opened on the secondary mold 3 for the sealing ring 18 to enter. The sealing ring 18 is used to seal the gap between the main mold 2 and the secondary mold 3.

[0037] Specifically, a sealing ring 20 is fixedly connected to the sealing groove 19. The sealing ring 20 can be attached to the sealing ring 18. The sealing ring 20 is used to seal the main mold 2 and the secondary mold 3.

[0038] Specifically, the main mold 2 is connected to a feed pipe 21, and a solenoid valve 22 is fixedly connected to the feed pipe 21. When the solenoid valve 22 is opened, the feed pipe 21 transmits the injection liquid into the main mold 2 and the secondary mold 3, thereby realizing the forming of the tire by the main mold 2 and the secondary mold 3.

[0039] The principle of this invention: This tire demolding device uses a cylinder to drive the secondary mold 3 to close with the main mold 2, forming a molding cavity. During molding, the injection liquid is injected into the sealed molding cavity through the feed pipe 21. The main mold 2 has a demolding mechanism consisting of a T-shaped column 5, a sealing plate 4, and a spring 25. The spring 25 pushes the sealing plate 4 to close the stepped groove 26 through the reset rod 24. When the air pump 6 starts, the airflow pushes the T-shaped column 5, causing the sealing plate 4 to bulge outward, and the tire is separated from the mold by the air pressure difference. The cooling system pumps the coolant from the storage tank 12 into the mold water inlet cavity 10 through a liquid pump. After heat exchange, the liquid returns to the storage tank 12 through the circulation pipe 15. The cooler 16 cools the returned liquid to form a closed-loop cooling system. The nested structure of the sealing ring 18 and the sealing groove 19, together with the sealing ring 20, achieves double sealing of the mold joint surface, ensuring the airtightness of the molding cavity. After demolding, the cylinder drives the secondary mold 3 to reset, and the spring 25 returns the demolding mechanism to its initial position, completing the entire working cycle.

[0040] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A demolding device for tires, comprising: The base (1), the main mold (2) fixedly connected to the base (1), and the secondary mold (3) driven to slide vertically on the base (1) and positioned opposite to the main mold (2) are characterized in that, Both the main mold (2) and the secondary mold (3) are equipped with demolding mechanisms; The demolding mechanism includes: a sealing plate (4), a T-shaped column (5), an air pump (6), an air outlet pipe (7), and a solenoid valve (8); The main mold (2) has an air inlet cavity (9) and a stepped groove (26) communicating with the air inlet cavity (9). The sealing plate (4) is slidably connected in the stepped groove (26). The T-shaped column (5) is elastically slidably connected in the air inlet cavity (9), and one end of the T-shaped column (5) is slidably connected to the stepped groove (26) and fixedly connected to the sealing plate (4). The air pump (6) is fixedly connected to the base (1). The air pump (6) is connected to the chamber through a hose. The air outlet pipe (7) is fixedly connected to the main mold (2) and is connected to the air inlet chamber (9). The solenoid valve (8) is fixedly connected to the air outlet pipe (7).

2. The tire demolding device according to claim 1, characterized in that, Both the main mold (2) and the secondary mold (3) are provided with water inlet chambers (10). When the main mold (2) and the secondary mold (3) are in contact, the water inlet chambers (10) are connected. The base (1) is provided with a circulating cooling mechanism (11), which is connected to the water inlet chambers (10).

3. A demolding device for tires according to claim 2, characterized in that, The circulating cooling mechanism (11) includes a storage tank (12) fixedly connected to the base (1), a liquid pump (13) disposed in the storage tank (12), and a cooling component (14) disposed on the base (1) and communicating with the storage tank (12). The liquid pump (13) is disposed in the storage tank (12) and one end is communicating with the water inlet chamber (10). A circulation pipe (15) is disposed on the secondary mold (3) and the circulation pipe (15) is communicating with the storage tank (12).

4. A demolding device for tires according to claim 3, characterized in that, The cooling component (14) includes a cooler (16) fixedly connected to the base (1) and a second pump (17) fixedly connected to the storage tank (12). The second pump (17) is located in the storage tank (12). One end of the second pump (17) is connected to the cooler (16) through a pipe. The cooler (16) is connected to the storage tank (12) through a pipe.

5. A tire demolding device according to claim 1, characterized in that, A sealing ring (18) is fixedly connected to the main mold (2), and a sealing groove (19) is provided on the secondary mold (3) for the sealing ring (18) to enter.

6. A demolding device for tires according to claim 5, characterized in that, A sealing ring (20) is fixedly connected to the sealing groove (19), and the sealing ring (20) can be attached to the sealing ring (18).

7. A tire demolding device according to claim 5, characterized in that, The main mold (2) is connected to a feed pipe (21), and a solenoid valve (22) is fixedly connected to the feed pipe (21).

8. A demolding device for tires according to claim 1, characterized in that, A reset rod 1 (23) is fixedly connected inside the air intake chamber (9). A reset rod 2 (24) is slidably connected to the reset rod 1 (23). A spring (25) is fixedly connected inside the reset rod 1 (23). One end of the spring (25) is fixedly connected to the reset rod 2 (24). One end of the reset rod 2 (24) is fixedly connected to the T-shaped column (5).