A polyurethane tire processing apparatus

Abstract

The utility model discloses a kind of polyurethane tire processing equipment, it is related to tire processing technical field.Processing table is included, the top surface of processing table is provided with two processing dies, two The processing die is respectively upper die and lower die, by the sealing assembly of being set, when two processing dies press sealing ring, due to the hollow cavity of being opened in the inside of sealing ring, so that the inner wall of embedding groove gradually sticks to the inner wall and surface of processing die, when two processing dies contact surface extrusion of sealing ring is formed primary sealing, while sealing ring extrusion deformation, the inner wall of two embedding grooves and the inner wall and surface of processing die stick to form secondary sealing, by single sealing ring, form double sealing effect, and then realize good sealing when polyurethane tire is processed, reduce the probability that burr appears in processing process of polyurethane tire, by the concentric component of being set, thereby reduce the probability that burr is generated when gap exists due to different concentric.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, specifically to a polyurethane tire processing equipment. Background Technology

[0002] Polyurethane tires are gradually being promoted in the industry due to their excellent performance. Their processing relies on equipment such as foaming machines and molds. During production, the raw materials are mixed and injected into the mold, and then formed by heating and rotation. Afterwards, they need to be demolded and trimmed.

[0003] However, existing polyurethane tire processing equipment relies heavily on simple sealing rings for mold sealing. The sealing structure is singular, has poor adaptability to deformation under pressure, and is difficult to form a stable multi-seal. This can easily lead to material leakage due to seal failure, resulting in burrs on the tire surface. At the same time, insufficient control of mold concentricity can easily cause misalignment during installation or operation, creating gaps that allow material to seep in and form burrs, increasing manual repair costs and quality risks. Therefore, there is an urgent need for a polyurethane tire processing equipment to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a polyurethane tire processing equipment to solve the problems mentioned in the background art, such as poor mold sealing leading to raw material leakage and tire molding defects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polyurethane tire processing equipment, including a processing table, the top surface of which is provided with two processing molds, the two processing molds being an upper mold and a lower mold, the upper mold and the lower mold being sized to match, and further comprising:

[0006] A sealing assembly, disposed between two processing dies, is used to seal the gap when the two processing dies are connected;

[0007] A concentric component is disposed on the inner wall of two processing dies and is used to concentrically limit the connection between the two processing dies.

[0008] Preferably, the sealing assembly includes two sealing rings, both of which are disposed between two processing molds. Each sealing ring has an embedding groove at its upper and lower ends and a hollow cavity inside. The inner wall of the lower embedding groove is fixedly connected to the upper end of the lower processing mold, and the inner wall of the upper embedding groove abuts against the lower end of the upper processing mold.

[0009] Preferably, the concentric assembly includes two concentric fixing frames, which are respectively fixedly connected to the inner wall of the processing mold. A concentric shaft is fixedly connected to the inner wall of the lower concentric fixing frame, and the surface of the concentric shaft is slidably connected to the inner wall of the upper concentric fixing frame.

[0010] Preferably, the surface of the concentric shaft is provided with a threaded groove, and a compression nut is threadedly connected to the surface of the concentric shaft.

[0011] Preferably, a titanium alloy contact piece is sleeved on the surface of the concentric shaft, the lower end of the titanium alloy contact piece abuts against the top surface of the concentric fixing frame located above, and the upper end of the titanium alloy contact piece abuts against the lower end of the compression nut.

[0012] Preferably, the sealing ring is made of fluororubber, and the width of the hollow cavity is greater than the wall width of the processing mold.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By designing a sealing component, when the two processing dies apply pressure to the sealing ring, the hollow cavity inside the sealing ring causes the inner wall of the embedding groove to gradually press against the inner wall and surface of the processing die. The initial seal is formed when the two processing dies compress the contact surface of the sealing ring. Simultaneously, the deformation of the sealing ring during compression causes the inner walls of the two embedding grooves to press against the inner wall and surface of the processing die, forming a secondary seal. This single sealing ring creates a double sealing effect, achieving excellent sealing performance during the processing of polyurethane tires and reducing the probability of burrs during processing. Furthermore, the concentric component further reduces the probability of burrs arising from gaps caused by misalignment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the sealing component structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Machining table; 2. Machining mold; 3. Sealing assembly; 301. Sealing ring; 302. Embedded groove; 303. Hollow cavity; 4. Concentric assembly; 401. Concentric fixing frame; 402. Concentric shaft; 403. Titanium alloy contact piece; 404. Threaded groove; 405. Extrusion nut. 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] Please see Figures 1-3 This utility model provides a polyurethane tire processing equipment, including a processing table 1, with two processing molds 2 arranged on the top surface of the processing table 1. The two processing molds 2 are an upper mold and a lower mold, and the upper mold and lower mold are matched in size. It also includes:

[0021] A sealing assembly is disposed between the two processing dies 2 and is used to seal the gap when the two processing dies 2 are connected.

[0022] Concentric components are disposed on the inner walls of the two processing molds 2 and are used to concentrically limit the connection between the two processing molds 2.

[0023] The sealing component facilitates sealing of the gap between the two processing molds 2, thereby reducing the probability of burrs appearing during the processing of polyurethane tires. The concentric component facilitates concentric positioning of the two processing molds 2, thereby reducing the probability of burrs appearing when there is a gap due to misalignment between the two processing molds 2. The processing table 1 is a common processing placement component in the prior art, equipped with a motor and controller. When the output shaft of the motor rotates, it drives the processing mold 2 to rotate and generate centrifugal force. The processing table 1 is prior art in this application and will not be described in detail here.

[0024] Furthermore, the sealing assembly includes two sealing rings 301, both of which are disposed between the two processing molds 2. Each sealing ring 301 has an embedding groove 302 at its upper and lower ends, and a hollow cavity 303 inside. The inner wall of the lower embedding groove 302 is fixedly connected to the upper end of the lower processing mold 2, and the inner wall of the upper embedding groove 302 abuts against the lower end of the upper processing mold 2. Through this sealing assembly, when the two processing molds 2 apply pressure to the sealing ring 301, the pressure acts on both the upper and lower ends of the sealing ring 301. Due to the hollow cavity 303 inside the sealing ring 301, the pressure from the two processing molds 2 is effectively neutralized. Under pressure, the two sides of the sealing ring 301 deform towards the hollow cavity 303. As the pressure increases, the sealing ring 301 is gradually squeezed, which compresses the originally relatively loose hollow cavity 303. The inner wall of the embedding groove 302 gradually adheres to the inner wall and surface of the processing mold 2. When the two processing molds 2 squeeze the contact surface of the sealing ring 301, a primary seal is formed. At the same time, when the sealing ring 301 is squeezed and deformed, the inner walls of the two embedding grooves 302 adhere to the inner wall and surface of the processing mold 2 to form a secondary seal. A single sealing ring 301 forms a double sealing effect, thereby achieving good sealing performance during the processing of polyurethane tires and reducing the probability of burrs appearing during the processing of polyurethane tires.

[0025] It should be noted that the sealing ring 301 is made of fluororubber, and the width of the hollow cavity 303 is greater than the wall width of the processing mold 2. The fluororubber material of the sealing ring 301 gives it good elasticity, allowing it to deform elastically under external force. Furthermore, compared to traditional rubber, the sealing ring 301 has better high-temperature resistance and chemical corrosion resistance, extending its service life. It also has good oil resistance, making it suitable for sealing oily media and reducing the risk of leakage. Secondly, the width of the hollow cavity 303 is greater than the wall width of the processing mold 2, providing space for the sealing ring 301 to deform under pressure, allowing the embedding groove 302 to better fit the inner wall and surface of the processing mold 2, achieving effective sealing.

[0026] Furthermore, the concentric assembly includes two concentric fixing frames 401, which are respectively fixedly connected to the inner wall of the processing mold 2. A concentric shaft 402 is fixedly connected to the inner wall of the lower concentric fixing frame 401. The surface of the concentric shaft 402 is slidably connected to the inner wall of the upper concentric fixing frame 401. Through the concentric assembly, the dimensions of the two concentric fixing frames 401 are matched, and the inner wall of the concentric fixing frame 401 matches the surface dimensions of the concentric shaft 402. This facilitates rapid concentricity between the two processing molds 2 when they are connected, thereby reducing the probability of burrs caused by gaps due to misalignment, and improving the convenience of concentric positioning between the two processing molds 2.

[0027] Furthermore, a threaded groove 404 is formed on the surface of the concentric shaft 402, and a compression nut 405 is threadedly connected to the surface of the concentric shaft 402. A titanium alloy contact piece 403 is fitted onto the surface of the concentric shaft 402. The lower end of the titanium alloy contact piece 403 abuts against the top surface of the upper concentric fixing frame 401, and the upper end of the titanium alloy contact piece 403 abuts against the lower end of the compression nut 405. The threaded groove 404 and the compression nut 405 work together to facilitate the rapid compression connection of the two processing dies 2. At the same time, the threaded groove 404 is formed on the concentric shaft 402. The inner wall of the compression nut 405 on the surface of 2 is threaded, so that the threaded groove 404 will not affect the overall diameter of the concentric shaft 402. The surface of the concentric shaft 402 and the inner wall of the upper concentric fixing frame 401 still maintain a good concentric size matching effect. The titanium alloy contact piece 403 is provided to facilitate the isolation between the upper concentric fixing frame 401 and the compression nut 405, so as to avoid the lower end of the concentric fixing frame 401 from rubbing against the top surface of the upper concentric fixing frame 401 during use.

[0028] Working principle: During use, the sealing components ensure that stress is distributed and transmitted within the sealing ring 301 during the pressure applied by the two processing molds 2. The pressure first acts on the upper and lower ends of the sealing ring 301 in contact with the processing mold 2, and then the stress is transmitted to the interior of the sealing ring 301 through the intermolecular forces within the sealing ring 301. Due to the presence of the hollow cavity 303, the stress transmission process causes the sealing ring 301 to flow into the hollow area, causing the upper and lower inner walls of the embedding groove 302 to gradually adhere to the inner walls and surfaces of the two processing molds 2 under stress, thus balancing the externally applied pressure. The initial seal is formed when the two processing molds 2 compress the contact surface of the sealing ring 301. At the same time, the secondary seal is formed when the inner walls of the two embedding grooves 302 adhere to the inner walls and surfaces of the processing molds 2 during the compression deformation of the sealing ring 301. A double sealing effect is achieved through a single sealing ring 301, thereby achieving good sealing performance during the processing of polyurethane tires and reducing the probability of burrs appearing during the processing of polyurethane tires.

[0029] With the concentric components, the two concentric brackets 401 are sized to match, and the inner wall of the concentric bracket 401 matches the surface size of the concentric shaft 402. This facilitates quick concentricity between the two processing dies 2 when they are connected, thereby reducing the probability of burrs caused by gaps due to misalignment. It also improves the convenience of concentric positioning between the two processing dies 2. The threaded groove 404 and the compression nut 405 work together to facilitate quick compression connection of the two processing dies 2. The threaded groove 404 is opened on the surface of the concentric shaft 402, and the inner wall of the compression nut 405 is threaded. This ensures that the threaded groove 404 does not affect the overall diameter of the concentric shaft 402, and the surface of the concentric shaft 402 and the inner wall of the upper concentric bracket 401 still maintain a good concentric size matching effect.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polyurethane tire processing equipment, comprising a processing table (1), wherein two processing molds (2) are disposed on the top surface of the processing table (1), the two processing molds (2) being an upper mold and a lower mold respectively, the upper mold and the lower mold being sized to match, characterized in that, Also includes: A sealing assembly is disposed between two processing molds (2) for sealing the gap when the two processing molds (2) are connected; A concentric component is disposed on the inner wall of the two processing molds (2) for concentric positioning when the two processing molds (2) are connected.

2. The polyurethane tire processing equipment according to claim 1, characterized in that: The sealing assembly includes two sealing rings (301), both of which are disposed between two processing molds (2). The upper and lower ends of each sealing ring (301) are provided with an embedding groove (302). The interior of each sealing ring (301) is provided with a hollow cavity (303). The inner wall of the lower embedding groove (302) is fixedly connected to the upper end of the lower processing mold (2), and the inner wall of the upper embedding groove (302) abuts against the lower end of the upper processing mold (2).

3. The polyurethane tire processing equipment according to claim 1, characterized in that: The concentric assembly includes two concentric fixing frames (401), which are respectively fixedly connected to the inner wall of the processing mold (2). A concentric shaft (402) is fixedly connected to the inner wall of the lower concentric fixing frame (401), and the surface of the concentric shaft (402) is slidably connected to the inner wall of the upper concentric fixing frame (401).

4. The polyurethane tire processing equipment according to claim 3, characterized in that: The surface of the concentric shaft (402) is provided with a threaded groove (404), and a compression nut (405) is threadedly connected to the surface of the concentric shaft (402).

5. The polyurethane tire processing equipment according to claim 3, characterized in that: The surface of the concentric shaft (402) is fitted with a titanium alloy contact piece (403). The lower end of the titanium alloy contact piece (403) abuts against the top surface of the concentric fixing frame (401) located above, and the upper end of the titanium alloy contact piece (403) abuts against the lower end of the compression nut (405).

6. The polyurethane tire processing equipment according to claim 2, characterized in that: The sealing ring (301) is made of fluororubber, and the width of the hollow cavity (303) is greater than the wall width of the processing mold (2).

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