Assembly for manufacturing tire section mould

Abstract

The utility model discloses an assembly for manufacturing a tire section mold, which comprises a pattern sheet assembly which is integrally formed by 3D printing; the pattern sheet assembly comprises a framework, a continuous sheet-shaped pattern sheet main body with a set thickness and a plurality of sheet-shaped blades with a set thickness, the pattern sheet main body extends upwards from the peripheral surface of the framework, and the plurality of sheet-shaped blades extend from the pattern sheet main body to the two sides and are of an integrated structure through 3D printing. The surface welding procedure of the matching surface of the combination part in the subsequent procedure can be omitted, and the subsequent welding procedure and polishing procedure can be reduced or omitted to a great extent; the problem of matching of the assembly parts of a plurality of original parts is avoided, and displacement caused by deformation of the assembly structures of the adjacent parts due to temperature change in the casting production process is reduced; in addition, corresponding procedures are reduced, so that the manufacturing period can be shortened to a great extent.

Description

Technical Field

[0001] This utility model belongs to the field of tire mold technology, specifically relating to a component for manufacturing tire section molds. Background Technology

[0002] Currently, tire molds produced on the market are constantly evolving to meet changing demands, with higher requirements for strength and performance. While commonly used high-performance materials like steel sheets and stainless steel are produced through stamping, these methods are no longer sufficient. The market needs materials with even higher performance and strength. The emergence and rapid adoption of 3D printing technology has broadened the range of material choices, bringing limitless possibilities.

[0003] As the market for printing gradually expands, ordinary steel sheets can be used with a single printing. However, some complex structures, due to their large size and coverage, cannot be completed in a single printing. Therefore, the market uses a split-type method for their production.

[0004] Following the development of adjustments and the continuous improvement of mold surface requirements and quality, while split-type molds are not difficult to manufacture, they require significant manpower and time for subsequent gap and surface treatment, making it impossible to meet market demands for mold delivery time and quality. The main problems are as follows:

[0005] 1. A modular construction makes the overall structure more complex and the process more cumbersome. 2. Modular design requires the creation of more parts, increasing workload and the error rate. 3. Modular manufacturing, involving multiple parts, increases the difficulty of assembly. 4. After modular manufacturing, defects such as gaps and misalignments may occur during subsequent installation. 5. After the tire mold is completed, laser treatment of the joint parts is required, increasing production time. 6. Gaps exist at the mold base due to the fit; this area is close to the lower surface of the mold, and the limited space makes welding and grinding difficult, resulting in decreased surface quality. 7. After modular manufacturing, surface treatment reduces the uniformity of the mold surface, compromising quality. 8. Modular manufacturing, due to the increased labor and time investment in later stages, may fail to meet market demands in terms of delivery time and quality. Summary of the Invention

[0006] The purpose of this invention is to provide a component for manufacturing tire section molds, which is intended to...

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0008] An assembly for manufacturing a tire segment mold includes a tread plate assembly, the tread plate assembly being integrally formed by 3D printing; the tread plate assembly includes a skeleton, a continuous, sheet-like tread plate body extending upward from the outer peripheral surface of the skeleton, having a predetermined thickness, and a plurality of sheet-like blades extending to both sides from the tread plate body, having a predetermined thickness.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-sectional width of the skeleton is greater than the cross-sectional width of the patterned sheet body.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: multiple first protrusions are provided on both sides of the patterned sheet body, and the first protrusions are distributed on the side of the patterned sheet body near the skeleton.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: multiple second protrusions are provided on both sides of the blade, and the second protrusions are distributed on the side of the blade adjacent to the skeleton.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the orientation of both the skeleton and the main body of the patterned piece is in the form of a broken line.

[0013] The outstanding and beneficial technical effects of this invention compared to the prior art are as follows: by 3D printing into an integral structure, the patterned sheet component of this integral structure can omit the surface welding process of the mating surfaces of the joints in the later process, which can greatly reduce or eliminate the subsequent welding and grinding processes; it also avoids the problem of the original assembly of multiple parts and reduces the displacement caused by the deformation of adjacent parts assembly structures due to temperature changes during the casting production process; in addition, the reduction of the corresponding processes can greatly shorten the production cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the patterned sheet assembly;

[0015] Figure 2 This is a schematic diagram of the overall structure of the patterned sheet assembly in Embodiment 2;

[0016] Figure 3 This is a schematic diagram of the assembly structure of the patterned sheet component and the silicone mold. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the given embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0019] In the description of this application, the terms "first," "second," etc., 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.

[0020] See details Figure 1-3As shown, a component for manufacturing tire segment molds includes a tread plate assembly 10, which is integrally formed by 3D printing. The tread plate assembly 10 includes a skeleton 11, a continuous, sheet-like tread plate body 12 extending upward from the outer periphery of the skeleton 11, and multiple sheet-like blades 13 extending to both sides from the tread plate body 12, each with a predetermined thickness. The tread plate assembly 10 and the base 20 are integrally formed by casting, with only the tread plate body 12 and the blades 13 protruding outward at a predetermined height at the ends away from the skeleton 11. Specifically, in this embodiment, a model is created based on the desired structure of the tread plate assembly 10. The created model is imported into the slicing system of a 3D printer to generate a 3D printing file. Subsequently, metal powder is printed using a metal 3D printer. The support positions required during the printing process are then removed, and the surface is trimmed to obtain the tread plate assembly 10. Then, a silicone mold is used for molding. The molding process includes positioning the printed patterned sheet assembly 10 on the silicone mold. It should be noted that the silicone mold has a pre-set positioning groove 25 for the patterned sheet assembly 10 and a slot on the side of the positioning protrusion 21. With the skeleton 11 of the patterned sheet assembly 10 facing upward, the patterned sheet body 12 and / or blade 13 are tightly inserted into the positioning groove 25 and slot of the silicone mold. The patterned sheet body 12 and / or blade 13 are tightly fitted with the positioning groove 25 and slot. By utilizing the elasticity of the silicone and the elastic edge of the positioning groove, the patterned sheet assembly 10 can be clamped and positioned. After positioning, the portions of the skeleton 11, the patterned sheet body 12 near the skeleton 11, and the blade 13 near the skeleton 11 are exposed outside the silicone mold. The silicone mold is then fastened, and plaster liquid is poured into its cavity. After the plaster liquid hardens, the silicone mold is removed, yielding a plaster mold. At this point, the portions of the skeleton 11, the patterned sheet body 12 near the skeleton 11, and the blade 13 near the skeleton 11 are located inside the plaster mold. The portions of the patterned sheet body 12 and / or the blade 13, originally inserted into the silicone mold, are exposed outside the plaster mold. The plaster mold is then shaped, including burr removal, to obtain a plaster mold that meets the requirements. Plaster mold; the plaster mold is heated and dried, and then assembled to obtain a molding cavity. After the plaster mold is heated and kept at a set temperature, molten aluminum is poured into the molding cavity. After cooling and solidification, the outer plaster mold is removed to obtain a semi-finished tire section mold. On the semi-finished tire section mold, recessed slots are formed by the tread plate body 12 and / or blades 13 exposed outside the plaster mold. After shaping the semi-finished tire section mold, multiple blades for forming the laterally extending tread grooves on the tire tread surface are embedded and fixedly installed in the slots, thereby forming the finished tire section mold.

[0021] Furthermore, considering that in order to improve the connection strength and reliability between the entire patterned sheet assembly 10 and the plaster mold, in this embodiment, it is preferable that the cross-sectional width of the skeleton 11 is greater than the cross-sectional width of the patterned sheet body 12. This allows the patterned sheet assembly 10 to form a pre-embedded structure within the plaster mold, which can significantly improve the connection strength of the patterned sheet assembly 10 within the plaster mold and prevent the risk of the patterned sheet assembly 10 shifting or detaching from the plaster mold due to external forces during demolding. Example

[0022] Furthermore, to further improve the connection strength and reliability between the entire tread plate assembly 10 and the plaster mold, this embodiment preferably provides a plurality of first protrusions 121 on both sides of the tread plate body 12, and the first protrusions 121 are distributed on the side of the tread plate body 12 adjacent to the skeleton 11. Of course, a plurality of second protrusions 131 can also be provided on both sides of the blade 13, and the second protrusions are distributed on the side of the blade 13 adjacent to the skeleton 11. Preferably, the first protrusions 121 and the second protrusions 131 are parallel to the extending direction of the skeleton 11; thereby, the first protrusions 121 and the second protrusions 131 further enhance the bonding firmness with the plaster mold, and further prevent the tread plate assembly 10 from shifting or detaching from the plaster mold due to external force during demolding. According to the direction of the transversely extending tread grooves on the tire tread surface, it is preferable that the direction of the skeleton 11 and the tread plate body 12 are both in a zigzag shape.

[0023] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An assembly for manufacturing a tire section mold, characterized in that: The invention includes a patterned sheet assembly (10), which is integrally formed by 3D printing. The patterned sheet assembly (10) includes a skeleton (11), a continuous, sheet-like patterned sheet body (12) with a set thickness extending upward from the outer peripheral surface of the skeleton (11), and a plurality of sheet-like blades (13) with a set thickness extending to both sides from the patterned sheet body (12).

2. The component for manufacturing a tire section mold according to claim 1, characterized in that: The cross-sectional width of the skeleton (11) is greater than the cross-sectional width of the patterned sheet body (12).

3. The component for manufacturing a tire section mold according to claim 1, characterized in that: Multiple first protrusions (121) are provided on both sides of the patterned sheet body (12), and the first protrusions (121) are distributed on the side of the patterned sheet body (12) near the skeleton (11).

4. The component for manufacturing a tire section mold according to claim 3, characterized in that: The blade (13) has a plurality of second protrusions (131) on both sides, and the second protrusions are distributed on the side of the blade (13) near the frame (11).

5. The component for manufacturing a tire section mold according to claim 1, characterized in that: The skeleton (11) and the patterned body (12) both have a zigzag shape.

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