Tire mold

Abstract

The utility model discloses a tire mold, which belongs to the technical field of rubber vulcanization equipment and comprises a plurality of pattern blocks provided with cavity surfaces. The plurality of pattern blocks are sequentially spliced to form a pattern ring; a splicing surface between every two adjacent pattern blocks is a vertical surface; the wear-resistant plate is attached to the vertical surface; the wear-resisting plate is detachably connected with the pattern blocks; the strength and hardness of the wear-resistant plate are higher than those of the pattern blocks; the wear-resisting plates attached to the vertical surfaces of the pattern blocks are utilized, so that the adjacent pattern blocks can be effectively prevented from being directly rubbed or extruded and abraded, and the pattern blocks are effectively protected; and moreover, the wear-resisting plate and the pattern block are of a detachable split structure, so that the wear-resisting plate can be simply and quickly replaced after being damaged, the maintenance is convenient, and the service life of the tire mold is prolonged.

Description

Technical Field

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

[0002] Tire active molds have the advantages of small displacement and uniform deformation during tire shaping and tire removal, and are widely used in the production of high-performance radial tires; among them, Figure 1-Figure 3 As shown, the pattern blocks and side plates of the existing tire flexible mold together form the cavity of the vulcanized tire, which is an important component of the tire flexible mold.

[0003] At present, the materials of the tread blocks of tire active molds are generally aluminum silicon, aluminum magnesium, forged aluminum, etc., and their strength and hardness are significantly lower than steel tread blocks. After long-term use, the caliber (the contact part between the tread block and the side plate) and the facade (the contact part between adjacent tread blocks) are prone to friction and extrusion wear, which will affect the vulcanization quality of the tire and the service life of the tire active mold.

[0004] Therefore, developing and designing a tire mold that can effectively prevent friction and extrusion wear between tread blocks and increase the service life of the tread blocks is a problem that needs to be solved urgently at this stage. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a tire mold, which utilizes a wear-resistant plate attached to the vertical surface of the tread block to effectively prevent direct friction or extrusion wear between adjacent tread blocks, thereby effectively protecting the tread blocks; moreover, the wear-resistant plate and the tread block are a detachable split structure, and the wear-resistant plate can be replaced simply and quickly after being damaged, which facilitates maintenance and increases the service life of the tire mold.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model provides a tire mold, comprising:

[0008] A plurality of pattern blocks, each having a cavity surface; the plurality of pattern blocks are sequentially spliced ​​to form a pattern circle; and the splicing surface between adjacent pattern blocks is set as a vertical surface;

[0009] A wear-resistant plate is attached to the facade; the wear-resistant plate is detachably connected to the tread block; the strength and hardness of the wear-resistant plate are higher than those of the tread block.

[0010] As a preferred technical solution, the wear-resistant plate completely covers the facade;

[0011] And / or, each of the facades is covered with the wear-resistant plate, and all of the wear-resistant plates have the same size and material.

[0012] As a preferred technical solution, a threaded hole is provided on the facade, a connecting hole is provided on the wear-resistant plate, a screw is provided in the connecting hole, and the screw passes through the connecting hole and is threadedly connected to the threaded hole.

[0013] As a preferred technical solution, a first pin hole is provided on the facade, a second pin hole is provided on the wear-resistant plate, a pin is provided in the second pin hole, and the pin passes through the second pin hole and extends into the first pin hole;

[0014] And / or, the vertical surface is provided with the threaded hole near the diameter of the pattern block.

[0015] As a preferred technical solution, the thickness of the wear-resistant plate is set to 0.5-3 mm.

[0016] As a preferred technical solution, the thickness of the wear-resistant plate gradually increases in a direction away from the cavity surface of the pattern block.

[0017] As a preferred technical solution, one side surface of the wear-resistant plate is in contact with the vertical surface, and the other side surface of the wear-resistant plate forms an angle with the vertical surface.

[0018] As a preferred technical solution, the side edge of the wear-resistant plate close to the cavity surface of the pattern block is set as a first curved surface, and the curvature of the first curved surface matches the curvature of the cavity surface of the pattern block.

[0019] As a preferred technical solution, the side edge of the wear-resistant plate away from the cavity surface of the pattern block is set as a second curved surface, and the curvature of the second curved surface matches the curvature of the outer peripheral surface of the pattern block.

[0020] As a preferred technical solution, the surface roughness of the wear-resistant plate is Ra≤0.8μm;

[0021] And / or, the material of the wear-resistant plate is set to S45C.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. The utility model utilizes a wear-resistant plate attached to the vertical surface of the tread block, which can effectively prevent direct friction or extrusion wear between adjacent tread blocks and effectively protect the tread blocks; and the wear-resistant plate and the tread block are detachable separate structures, so the wear-resistant plate can be replaced simply and quickly after being damaged, which is convenient for maintenance and increases the service life of the tire mold.

[0024] 2. The thickness of the wear-resistant plate of the utility model gradually increases in the direction away from the cavity surface of the pattern block, which can effectively ensure the wear resistance and the matching accuracy between adjacent pattern blocks, while minimizing the impact of the wear-resistant plate on the cavity and ensuring the vulcanization quality of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an existing tire flexible mold;

[0026] Figure 2 for Figure 1 A side view of a tread block;

[0027] Figure 3 for Figure 1 A top view of the pattern circle in FIG.

[0028] Figure 4 This is a schematic diagram of the structure of a tread block in a tire mold of the utility model;

[0029] Figure 5 for Figure 4 Magnified view of area A.

[0030] In the figure: 1-pattern block, 11-vertical surface, 111-threaded hole, 112-first pin hole, 12-caliber, 13-cavity surface, 2-wear-resistant plate, 21-connecting hole, 22-second pin hole, 3-screw, 4-pin, 5-side plate. DETAILED DESCRIPTION

[0031] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0032] Please refer to Figure 4-Figure 5 , which is an embodiment of a tire mold provided by the utility model, comprises a plurality of pattern blocks 1, each of which has a cavity surface 13, and the plurality of pattern blocks 1 are spliced ​​in pairs in sequence, so that the cavity surfaces 13 on the pattern blocks 1 are connected in sequence to form a pattern ring; the two opposite side surfaces of the pattern block 1 are both facades 11, and the adjacent pattern blocks 1 are spliced ​​with each other through the facades 11; the facades 11 are covered with wear-resistant plates 2, which can effectively prevent direct friction or extrusion wear between adjacent pattern blocks 1, and the wear-resistant plates 2 can effectively protect the pattern blocks 1; the wear-resistant plates 2 are detachably connected to the pattern blocks 1, and the strength and hardness of the wear-resistant plates 2 are higher than those of the pattern blocks 1. Even if the wear-resistant plates 2 are damaged, they can be easily and quickly replaced, which is convenient for maintenance and also improves the service life of the tire mold.

[0033] Specifically, the tread ring and the side plate 5 together form a cavity of the vulcanized tire.

[0034] It should be noted that the strength of the wear-resistant plate 2 specifically refers to tensile strength and yield strength.

[0035] In this embodiment, please refer to Figure 4 and Figure 5 A threaded hole 111 is provided on the facade 11, a connecting hole 21 is provided on the wear-resistant plate 2, a screw 3 is provided in the connecting hole 21, the screw 3 passes through the connecting hole 21 and is threadedly connected to the threaded hole 111, so that the wear-resistant plate 2 can be firmly fixed on the facade 11 of the pattern block 1, and a detachable connection between the wear-resistant plate 2 and the pattern block 1 can be realized.

[0036] Based on the above examples, please refer to Figure 4 and Figure 5 A first pin hole 112 is provided on the facade 11, a second pin hole 22 is provided on the wear-resistant plate 2, a pin 4 is provided in the second pin hole 22, the pin 4 passes through the second pin hole 22 and extends into the first pin hole 112, the pin 4 can make the installation and disassembly process between the wear-resistant plate 2 and the pattern block 1 easier, and the connection effect between the wear-resistant plate 2 and the pattern block 1 is more stable.

[0037] Specifically, the facade 11 is provided with threaded holes 111 near the aperture 12 of the pattern block 1 . Since the aperture 12 of the pattern block 1 is located at the upper and lower ends of the pattern block 1 , the threaded holes 111 near the aperture 12 can have a better fastening effect on the wear-resistant plate 2 .

[0038] It should be noted that the wear-resistant plate 2 should completely cover the facade 11. When adjacent pattern blocks 1 abut, the facade 11 of the pattern blocks 1 can be fully protected. At the same time, there is a larger abutment surface between the wear-resistant plates 2 on adjacent pattern blocks 1, which can reduce the wear of the wear-resistant plate 2.

[0039] For further information, please refer to Figure 4 and Figure 5 Each vertical surface 11 should be covered with a wear-resistant plate 2, which can effectively protect all the vertical surfaces 11 of the pattern block 1; at the same time, the size and material of all the wear-resistant plates 2 should be the same, which is convenient for production and installation, and can also effectively control variables to ensure that the specifications of the pattern rings formed by splicing multiple pattern blocks 1 are consistent, thereby ensuring the vulcanization effect of the tire.

[0040] It should be noted that the thickness of the wear-resistant plate 2 is preferably set to 0.5-3 mm. If the wear-resistant plate 2 is too thin, its wear-resistant effect is small and needs to be replaced frequently. If the wear-resistant plate 2 is too thick, the wear-resistant plate 2 will be worn out after long-term use, and the matching accuracy between the pattern blocks 1 will decrease, and the gap between the facades 11 will increase, which will affect the vulcanization molding quality of the tire.

[0041] In this embodiment, please refer to Figure 4 and Figure 5, the thickness at any position on the wear-resistant plate 2 remains consistent, which is convenient for processing and installation; in other embodiments, the thickness of the wear-resistant plate 2 can also gradually increase in the direction away from the cavity surface 13 of the pattern block 1, that is, the wear-resistant plate 2 is in an oblique wedge shape, one side of the wear-resistant plate 2 is in contact with the vertical surface 11, and the other side of the wear-resistant plate 2 is at an angle to the vertical surface 11. While effectively ensuring the wear resistance and the matching accuracy between adjacent pattern blocks 1, the influence of the wear-resistant plate 2 on the cavity can be reduced as much as possible to ensure the vulcanization quality of the tire.

[0042] Based on the above examples, please refer to Figure 4 and Figure 5 , the side edges of the wear-resistant plate 2 are set as flat surfaces, which are convenient for production and processing; in other embodiments, the side edge of the wear-resistant plate 2 close to the cavity surface 13 of the pattern block 1 is set as a first curved surface, the curvature of the first curved surface matches the curvature of the cavity surface 13 of the pattern block 1, and the first curved surface cooperates with the cavity surface 13 of the pattern block 1, so that the formed cavity shape is accurate, ensuring the vulcanization quality of the tire; correspondingly, the side edge of the wear-resistant plate 2 away from the cavity surface 13 of the pattern block 1 is set as a second curved surface, and the curvature of the second curved surface matches the curvature of the outer peripheral surface of the pattern block 1, so that the outer peripheral surface of the pattern ring is smooth, which is convenient for installation and production.

[0043] It should be noted that the surface roughness Ra of the wear-resistant plate 2 is preferably ≤0.8μm, which can effectively avoid the small friction when the two wear-resistant plates 2 abut against each other, and effectively avoid excessive wear; further, the material of the wear-resistant plate 2 is preferably set to S45C carbon structural steel. Compared with the pattern blocks 1 made of aluminum silicon, aluminum magnesium, forged aluminum and other materials, the wear-resistant plate 2 has higher strength, hardness and deformation resistance.

[0044] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tire mold, characterized in that: include: A plurality of pattern blocks (1), each of the pattern blocks (1) having a cavity surface (13); the plurality of pattern blocks (1) are sequentially spliced ​​to form a pattern ring; and the splicing surface between adjacent pattern blocks (1) is set as a vertical surface (11); A wear-resistant plate (2), the wear-resistant plate (2) being attached to the vertical surface (11); the wear-resistant plate (2) being detachably connected to the pattern block (1); the strength and hardness of the wear-resistant plate (2) are both higher than those of the pattern block (1).

2. A tire mold according to claim 1, characterized in that: The wear-resistant plate (2) completely covers the facade (11); And / or, each of the facades (11) is covered with the wear-resistant plate (2), and all the wear-resistant plates (2) are of the same size and material.

3. A tire mold according to claim 1 or 2, characterized in that: The vertical surface (11) is provided with a threaded hole (111), the wear-resistant plate (2) is provided with a connecting hole (21), a screw (3) is provided in the connecting hole (21), and the screw (3) passes through the connecting hole (21) and is threadedly connected to the threaded hole (111).

4. A tire mold according to claim 3, characterized in that: The vertical surface (11) is provided with a first pin hole (112), the wear-resistant plate (2) is provided with a second pin hole (22), a pin (4) is provided in the second pin hole (22), and the pin (4) passes through the second pin hole (22) and extends into the first pin hole (112); And / or, the vertical surface (11) is provided with the threaded hole (111) at a position close to the aperture (12) of the pattern block (1).

5. A tire mold according to claim 1, characterized in that: The thickness of the wear-resistant plate (2) is set to 0.5-3 mm.

6. A tire mold according to claim 1 or 5, characterized in that: The thickness of the wear-resistant plate (2) gradually increases in a direction away from the cavity surface (13) of the pattern block (1).

7. A tire mold according to claim 6, characterized in that: One side surface of the wear-resistant plate (2) is in contact with the vertical surface (11), and the other side surface of the wear-resistant plate (2) forms an angle with the vertical surface (11).

8. A tire mold according to claim 1, characterized in that: The side edge of the wear-resistant plate (2) close to the cavity surface (13) of the pattern block (1) is set as a first curved surface, and the curvature of the first curved surface matches the curvature of the cavity surface (13) of the pattern block (1).

9. A tire mold according to claim 1 or 8, characterized in that: The side edge of the wear-resistant plate (2) away from the cavity surface (13) of the pattern block (1) is set as a second curved surface, and the curvature of the second curved surface matches the curvature of the outer peripheral surface of the pattern block (1).

10. A tire mold according to claim 1 or 2, characterized in that: The surface roughness of the wear-resistant plate (2) is Ra≤0.8 μm; And / or, the material of the wear-resistant plate (2) is set to S45C.

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