Tire mold with pattern blocks easy to replace

Abstract

The utility model relates to the technical field of tire molds, in particular to a tire mold with easily-replaced pattern blocks, which comprises a housing, a bottom plate and the pattern blocks, a round opening is formed in the middle of the housing in a penetrating manner, a round central column is upwards formed in the middle of the bottom plate, and the housing and the bottom plate are coaxially mounted. At the moment, the circular opening is arranged outside the central column in a sleeving mode, and a forming space used for installing the pattern blocks is formed between the circular opening and the central column. According to the technical scheme, by arranging the limiting assembly, the position of the pattern block can be accurately restrained after the pattern block is installed in place, it is guaranteed that the position of the pattern block in the mold is accurate, and therefore the continuity and regularity of patterns on the surface of a tire are guaranteed, and the quality and performance of the tire are improved; the pattern block is preliminarily positioned through the cooperation of the magnetic attraction block and the magnetic attraction groove, and then the pattern block is quickly positioned and restrained through the limiting assembly, so that the replacement time of the pattern block is greatly shortened, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tire mold technology, specifically to a tire mold with easily replaceable tread blocks. Background Technology

[0002] Different tires require different tread patterns, such as snow tires, off-road tires, and road tires. Each tread pattern has its specific performance requirements, which requires tire molds to have a variety of tread patterns. In order to reduce costs, currently, replaceable tread blocks are generally set in the tire mold to achieve the purpose of producing tires with multiple tread patterns.

[0003] Patent document CN206140758U discloses a tire mold with quickly detachable tread blocks, including an upper mold body, a lower mold body, and a tread block body. The tire mold with quickly detachable tread blocks provided by this solution connects the tread blocks to the mold body through the attraction of magnets. When the tire is demolded, the tread blocks separate from the mold body and are removed together with the tire. When the mold is assembled, the tread blocks are removed from the tire.

[0004] The above solution uses magnets to position the tread blocks, which causes the tread blocks to shift or tilt during installation, resulting in discontinuous or deformed tread patterns on the tire surface. If traditional bolts are used to connect the tread blocks, the disassembly and assembly time will take several hours, affecting production efficiency. Summary of the Invention

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to provide a tire mold with easily replaceable tread blocks, thereby improving the efficiency of tread block replacement.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A tire mold with easily replaceable tread blocks includes a cover, a base plate, and tread blocks. A circular opening is formed through the middle of the cover, and a circular central column is formed upward in the middle of the base plate. The cover and the base plate are coaxially installed. At this time, the circular opening is fitted outside the central column, and a molding space for installing the tread blocks is formed from the circular opening to the central column.

[0008] A limiting component is provided inside the housing. The limiting component includes a driving member and a limiting block. After being driven by the driving member, the limiting block moves from inside the housing toward the forming space, thereby abutting and constraining the position of the pattern block.

[0009] In some embodiments of this utility model, a magnetic groove is formed at the bottom of the patterned block, and a magnetic block matching the size of the magnetic groove is provided at the top of the base plate.

[0010] In some embodiments of this utility model, the cover has an annular groove formed at the bottom corresponding to the circular opening, and the annular groove connects the molding space with the space where the limiting component is installed.

[0011] In some embodiments of this utility model, the end faces of the patterned block that contact the central column and the circular opening are all arc-shaped surfaces.

[0012] In some embodiments of this utility model, the limiting component includes a bidirectional electric push rod, the output shaft of which is rotatably connected to one end of a rotating rod, the bottom of which is rotatably connected to the top end of a rotating shaft, the bottom end of which is rotatably connected to the base plate, the other end of which is rotatably connected to the middle of a connecting frame, the two sides of which are fixedly connected to the limiting block, the end face of which the limiting block contacts the patterned block is an arc-shaped surface, and the limiting block and the patterned block installed in the molding space are on the same plane.

[0013] In some embodiments of this utility model, there are a total of eight patterned blocks and two sets of limiting components, which are symmetrically arranged about the eight patterned blocks.

[0014] In some embodiments of this utility model, the contact surface between the limiting block and the patterned block is provided with an anti-slip block, the anti-slip block is elastically connected to the limiting block through a spring post, and the side of the anti-slip block facing the patterned block has an arc-shaped notch.

[0015] In some embodiments of this utility model, the arc-shaped notch is provided with anti-slip texture.

[0016] In some embodiments of this utility model, a through groove for weight reduction is formed through the middle of the anti-slip block.

[0017] The beneficial effects of this utility model are:

[0018] Compared to traditional methods, this technical solution, by setting a limiting component, can accurately constrain the position of the tread blocks after they are installed, ensuring the accurate positioning of the tread blocks in the mold. This guarantees the continuity and regularity of the tire surface tread pattern, improving tire quality and performance. Furthermore, the cooperation between the magnetic block and the magnetic groove enables the initial positioning of the tread blocks. Combined with the rapid positioning and constraint of the limiting component, this greatly shortens the tread block replacement time, improves production efficiency, and reduces production costs. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2This is a perspective view of the opening, the forming space, and the circumferential groove in this utility model;

[0022] Figure 3 This is a perspective view of the bottom of the patterned block in this utility model;

[0023] Figure 4 This is the stereoscopic view of the limiting component in this utility model. Figure 1 ;

[0024] Figure 5 This is the stereoscopic view of the limiting component in this utility model. Figure 2 ;

[0025] Figure 6 This is a perspective view of the anti-slip block in this utility model.

[0026] In the diagram: 1. Cover; 11. Opening; 12. Forming space; 13. Circumferential groove; 2. Base plate; 21. Center column; 3. Patterned block; 31. Magnetic block; 32. Magnetic groove; 4. Bidirectional electric push rod; 41. Output shaft; 42. Rotating rod; 43. Rotating shaft; 44. Connecting frame; 45. Limiting block; 5. Anti-slip block; 51. Spring column; 52. Arc-shaped notch; 53. Anti-slip texture; 54. Through groove. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] like Figure 1 , Figure 2 As shown, a tire mold with easily replaceable tread blocks includes a cover 1, a base plate 2, and tread blocks 3. A circular opening 11 is formed through the middle of the cover 1, and a circular central column 21 is formed upward in the middle of the base plate 2. The cover 1 and the base plate 2 are coaxially installed. At this time, the circular opening 11 is fitted outside the central column 21, and a molding space 12 for installing the tread blocks 3 is formed between the circular opening 11 and the central column 21.

[0029] In this design, the casing 1, as a crucial component of the tire mold, protects and positions the internal structure. Its circular opening 11 is precisely designed to perfectly align with the central pillar 21, ensuring accurate coaxial alignment during installation. The base plate 2 serves as the fundamental support for the entire mold, with the central pillar 21 protruding upwards from its center, providing a central positioning reference for the installation of the tread blocks 3. When the casing 1 and base plate 2 are installed coaxially, the forming space 12 formed between the circular opening 11 and the central pillar 21 matches the shape and size of the tread blocks 3, providing suitable space for their installation. This design allows the tread blocks 3 to be accurately installed within the forming space 12, ensuring the precision of the tire tread pattern's formation.

[0030] like Figure 4 , Figure 5 As shown, a limiting component is provided inside the housing 1. This limiting component includes a driving element and a limiting block 45. Driven by the driving element, the limiting block 45 moves from inside the housing 1 towards the forming space 12, thereby abutting and constraining the position of the tread block 3. The limiting component is one of the key innovative parts of this mold. The driving element, as a power source, provides precise driving force to the limiting block 45. When positioning of the tread block 3 is required, the driving element activates, driving the limiting block 45 to move from inside the housing 1 towards the forming space 12. During this movement, the limiting block 45 accurately abuts against the surface of the tread block 3, thereby constraining its position. In this way, displacement of the tread block 3 during mold operation is effectively prevented, ensuring the quality and precision of the tire tread pattern.

[0031] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, a magnetic groove 32 is formed at the bottom of the patterned block 3, and a magnetic block 31 matching the size of the magnetic groove 32 is provided at the top of the base plate 2. The magnetic groove 32 and the magnetic block 31 provide initial positioning and fixation for the installation of the patterned block 3. When the patterned block 3 is installed in the molding space 12, the magnetic groove 32 and the magnetic block 31 can automatically align and attract each other, allowing the patterned block 3 to be quickly positioned on the base plate 2. This magnetic attraction method is not only simple and convenient to operate, but also ensures the accurate installation position of the patterned block 3 to a certain extent, providing a good foundation for the subsequent operation of the limiting components.

[0032] like Figure 2 , Figure 4As shown, in some embodiments of this utility model, the bottom of the cover 1 corresponding to the circular opening 11 has an annular groove 13, which connects the molding space 12 with the space for installing the limiting component. The function of the annular groove 13 is to provide the necessary space and channel for the operation of the limiting component. When the limiting block 45 is driven by the driving component to move into the molding space 12, the annular groove 13 can ensure that the limiting block 45 smoothly enters the molding space 12, contacts the patterned block 3, and is positioned. At the same time, the setting of the annular groove 13 is also beneficial to the internal structural layout of the mold, making the connection between various components more compact and improving the overall performance of the mold.

[0033] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the end faces of the tread block 3 that contact the central post 21 and the circular opening 11 are all arc-shaped. This arc-shaped surface design has multiple advantages. On the one hand, the arc-shaped surface can better fit the surfaces of the central post 21 and the circular opening 11, reducing the gap between them and improving the accuracy of tire molding. On the other hand, the arc-shaped surface design also makes the installation and disassembly of the tread block 3 smoother, reducing friction and lowering the difficulty of operation. In addition, the arc-shaped surface design can also distribute the pressure on the tread block 3 during mold operation to a certain extent, extending the service life of the tread block 3.

[0034] like Figure 4 , Figure 5 As shown, in some embodiments of this utility model, the limiting component includes a bidirectional electric push rod 4. The output shaft 41 of the bidirectional electric push rod 4 is rotatably connected to one end of a rotating rod 42. The bottom of the rotating rod 42 is rotatably connected to the top end of a rotating shaft 43. The bottom end of the rotating shaft 43 is rotatably connected to the base plate 2. The other end of the rotating rod 42 is rotatably connected to the middle of a connecting frame 44. The two sides of the connecting frame 44 are fixedly connected to limiting blocks 45. The end face of the limiting block 45 that contacts the patterned block 3 is an arc-shaped surface, and the limiting block 45 and the patterned block 3 installed in the molding space 12 are on the same plane.

[0035] It is important to note that the bidirectional electric push rod 4, as the core driving component of the limiting assembly, provides stable and precise driving force. When the bidirectional electric push rod 4 is working, its output shaft 41 extends and retracts, driving the rotating rod 42 to rotate around the connection point with the output shaft 41. The rotation of the rotating rod 42 is then transmitted to the connecting frame 44 through the rotating shaft 43, enabling the connecting frame 44 to drive the limiting block 45 to move along a certain trajectory. Since the end face of the limiting block 45 that contacts the patterned block 3 is an arc-shaped surface and lies on the same plane as the patterned block 3, when the limiting block 45 moves to contact the patterned block 3, it can closely fit the surface of the patterned block 3, effectively positioning and constraining it. This structural design not only ensures the positioning accuracy of the limiting block 45 for the patterned block 3, but also adapts to patterned blocks 3 of different sizes and shapes, improving the versatility of the mold.

[0036] like Figure 4 , Figure 5 As shown, in some embodiments of this utility model, there are eight tread blocks 3 and two sets of limiting components, which are symmetrically arranged about the eight tread blocks 3. This quantity and layout is carefully designed; the eight tread blocks 3 can meet the design requirements of different tire tread patterns, and also contribute to the overall structural stability of the mold. The symmetrical arrangement of the two sets of limiting components can evenly position and constrain the eight tread blocks 3, ensuring that each tread block 3 can be accurately installed within the molding space 12, avoiding uneven local stress. This symmetrical layout design not only improves the working efficiency of the mold but also ensures the consistency and aesthetics of the tire tread pattern.

[0037] like Figure 5 , Figure 6 As shown, in some embodiments of this utility model, the contact surface between the limiting block 45 and the patterned block 3 is provided with an anti-sliding block 5. The anti-sliding block 5 is elastically connected to the limiting block 45 through a spring post 51, and an arc-shaped notch 52 is formed on the side of the anti-sliding block 5 facing the patterned block 3.

[0038] It is important to note that the anti-slip block 5 further enhances the fixing effect on the tread block 3. The elastic connection of the spring column 51 allows the anti-slip block 5 to adapt to the deformation of the tread block 3 to a certain extent, while also providing a certain buffering force during mold operation, reducing damage to the tread block 3. The arc-shaped notch 52 design can better fit the surface of the tread block 3, increasing the contact area between the two, thereby improving the anti-slip effect. When the limit block 45 abuts against the tread block 3, the anti-slip block 5 can firmly grip the tread block 3, preventing its displacement and ensuring the quality and precision of the tire tread.

[0039] like Figure 6As shown, in some embodiments of this utility model, anti-slip patterns 53 are provided at the arc-shaped notch 52. The anti-slip patterns 53 further increase the friction between the anti-slip block 5 and the tread block 3, enhancing the anti-slip effect. The shape and size of the anti-slip patterns 53 are carefully designed to fit tightly against the surface of the tread block 3, effectively preventing the tread block 3 from sliding during mold operation. This design not only improves the stability and reliability of the mold but also ensures the consistency and aesthetics of the tire tread pattern.

[0040] like Figure 6 As shown, in some embodiments of this utility model, a through groove 54 for weight reduction is formed through the middle of the anti-slip block 5. The through groove 54 effectively reduces the weight of the anti-slip block 5 without affecting its function. Since the anti-slip block 5 is elastically connected to the limiting block 45 via the spring post 51, reducing the weight of the anti-slip block 5 reduces the load on the spring post 51 and extends its service life. Simultaneously, reducing the overall weight of the mold also helps reduce energy consumption and improve mold efficiency. Furthermore, the through groove 54 reduces material usage and lowers mold manufacturing costs.

[0041] When installing the patterned block 3, first place the patterned block 3 in the molding space 12, aligning the magnetic groove 32 at the bottom of the patterned block 3 with the magnetic block 31 at the top of the base plate 2, and attracting each other to achieve initial positioning of the patterned block 3. Then, activate the bidirectional electric push rod 4. The output shaft 41 of the bidirectional electric push rod 4 extends and retracts, driving the rotating rod 42 to rotate around the connection point with the output shaft 41. The rotation of the rotating rod 42 is transmitted to the connecting frame 44 through the rotating shaft 43, causing the connecting frame 44 to drive the limiting block 45 to move along a certain trajectory into the molding space 12. When the limiting block 45 moves to contact the patterned block 3, since the end face of the limiting block 45 in contact with the patterned block 3 is an arc-shaped surface and is on the same plane as the patterned block 3, the limiting block 45 can tightly fit the surface of the patterned block 3, effectively positioning and constraining it. Meanwhile, the anti-slip block 5 is elastically connected to the limiting block 45 through the spring column 51. The arc-shaped notch 52 and anti-slip texture 53 on the side of the anti-slip block 5 facing the patterned block 3 can further enhance the fixing effect on the patterned block 3 and prevent the patterned block 3 from shifting during the mold operation.

[0042] After the tread block 3 is accurately installed and positioned, the other parts of the tire mold are installed, and the tire forming process begins. During the forming process, the limiting components continuously constrain the tread block 3 to ensure its stable position, thereby guaranteeing the continuity and regularity of the tire surface pattern.

[0043] When the tire molding process is complete and the tread block 3 needs to be removed, the bidirectional electric push rod 4 is first activated in reverse to move the limiting block 45 away from the tread block 3, thus releasing the constraint on the tread block 3. Then, due to the relatively weak magnetic force between the magnetic block 31 and the magnetic groove 32, the tread block 3 can be easily removed from the base plate 2, completing the replacement of the tread block 3. Through the above working principle, this tire mold can effectively solve the problems existing in the prior art, realize the rapid and accurate replacement of the tread block 3, and improve the tire production efficiency and quality.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above description is merely an example and illustration of the present utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A tire mold with easily replaceable tread blocks, comprising a cover, a base plate, and tread blocks, characterized in that, A circular opening is formed through the middle of the cover, and a circular central column is formed upward from the middle of the base plate. The cover and the base plate are coaxially installed. At this time, the circular opening is fitted outside the central column, and a forming space for installing the patterned block is formed from the circular opening to the central column. A limiting component is provided inside the cover. The limiting component includes a driving member and a limiting block. After being driven by the driving member, the limiting block moves from inside the cover toward the forming space, thereby abutting and constraining the position of the patterned block.

2. The tire mold with easily replaceable tread blocks according to claim 1, characterized in that, The bottom of the patterned block has a magnetic groove, and the top of the base plate has a magnetic block that matches the size of the magnetic groove.

3. The tire mold with easily replaceable tread blocks according to claim 1, characterized in that, The cover has an annular groove formed at the bottom corresponding to the circular opening, and the annular groove connects the molding space with the space where the limiting component is installed.

4. A tire mold with easily replaceable tread blocks according to claim 1, characterized in that, The end faces of the patterned blocks that contact the central column and the circular opening are all arc-shaped.

5. A tire mold with easily replaceable tread blocks according to claim 1, characterized in that, The limiting component includes a bidirectional electric push rod, the output shaft of which is rotatably connected to one end of a rotating rod. The bottom of the rotating rod is rotatably connected to the top of a rotating shaft, the bottom end of which is rotatably connected to the base plate. The other end of the rotating rod is rotatably connected to the middle of a connecting frame. Both sides of the connecting frame are fixedly connected to the limiting block. The end face of the limiting block that contacts the patterned block is an arc-shaped surface, and the limiting block and the patterned block installed in the molding space are on the same plane.

6. A tire mold with easily replaceable tread blocks according to claim 5, characterized in that, There are eight patterned blocks in total, and two sets of limiting components are arranged symmetrically about the eight patterned blocks.

7. A tire mold with easily replaceable tread blocks according to claim 1, characterized in that, The contact surface between the limiting block and the patterned block is provided with an anti-slip block. The anti-slip block is elastically connected to the limiting block through a spring post, and the side of the anti-slip block facing the patterned block has an arc-shaped notch.

8. A tire mold with easily replaceable tread blocks according to claim 7, characterized in that, The arc-shaped notch is provided with anti-slip texture.

9. A tire mold with easily replaceable tread blocks according to claim 7, characterized in that, The anti-blocking block has a through groove in the middle for weight reduction.

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