Tire mold

Abstract

The utility model provides a tire mold. The tire mold comprises an upper side plate assembly; the upper side plate assembly and the lower half mold assembly are oppositely arranged and define a vulcanization space, and at least one part of the upper side plate assembly can move in the axial direction of a tire relative to the lower half mold assembly; at least one part of the movable block assembly is movably arranged between the upper side plate assembly and the lower half die assembly and abuts against the upper side plate assembly and the lower half die assembly; the movable block assembly is connected with the transmission assembly and moves along with the transmission assembly, the upper side plate assembly is provided with a driving structure matched with the transmission assembly, and when the upper side plate assembly moves in the axial direction of the tire relative to the lower half mold assembly, the upper side plate assembly drives the transmission assembly to move in the radial direction of the tire through the driving structure. The utility model solves the problems in the prior art that the tire moves along with the mold after being vulcanized and is difficult to take.

Description

Technical Field

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

[0002] In the existing traditional two-half mold, the upper tread ring and the upper side plate are an integrated structure, forming an integrated upper half mold. After the traditional two-half mold smooth tire is vulcanized, when the vulcanizer drives the upper half mold to move upward, the upper half mold will drive the tire upward, making it difficult to remove the tire.

[0003] Therefore, there is a problem in the prior art that the tire moves along with the mold after vulcanization and it is difficult to remove the tire. Utility Model Content

[0004] The main purpose of the utility model is to provide a tire mold to solve the problem in the prior art that the tire moves along with the mold after vulcanization and it is difficult to remove the tire.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a tire mold is provided, including: an upper side plate assembly; a lower half mold assembly, the upper side plate assembly and the lower half mold assembly are relatively arranged and enclose a vulcanization space, and at least a part of the upper side plate assembly can move relative to the lower half mold assembly along the axial direction of the tire; an active block assembly, at least a part of the active block assembly is movably arranged between the upper side plate assembly and the lower half mold assembly and abuts against the upper side plate assembly and the lower half mold assembly respectively; a transmission assembly, the active block assembly is connected to the transmission assembly and moves with the transmission assembly, and the upper side plate assembly has a driving structure that cooperates with the transmission assembly, when the upper side plate assembly moves relative to the lower half mold assembly along the axial direction of the tire, the upper side plate assembly drives the transmission assembly to move radially along the tire through the driving structure.

[0006] Furthermore, when the upper side plate assembly moves in the axial direction of the tire in a direction away from the tire, the transmission assembly drives the movable block assembly to move in the radial direction of the tire in a direction away from the tire.

[0007] Furthermore, the movable block assembly includes a plurality of movable block bodies, which are spaced apart around the periphery of the top end of the lower half mold assembly, and the transmission assembly includes a plurality of transmission parts, each transmission part being respectively connected to at least one different movable block body.

[0008] Furthermore, the number of the movable block bodies and the transmission parts are equal and correspond one to one.

[0009] Furthermore, the transmission part includes: a transmission arm, there are two transmission arms, the two transmission arms are arranged at an interval, the transmission arm is L-shaped and includes a first section and a second section connected in sequence, and the end of the first section away from the second section is connected to the movable block body; a roller, the two ends of the roller are respectively connected to the end of the second section of the two transmission arms away from the first section and cooperate with the driving structure.

[0010] Furthermore, the driving structure is a plurality of driving blocks arranged on the circumferential outer wall of the upper side plate assembly, each roller is respectively matched with at least one different driving block, and the driving block has a driving inclined surface that matches the roller, and the driving inclined surface gradually moves away from the roller in the height direction of the upper side plate assembly.

[0011] Furthermore, the tire mold also includes: a guide block, there are multiple guide blocks, each active block body corresponds to at least one different guide block, the guide block is arranged on the side of the lower mold assembly facing the active block body, the active block body is provided with a guide groove corresponding to the guide block, at least a part of the guide block is located inside the guide groove, when the active block body moves along the radial direction of the tire, the guide block moves along the guide groove relative to the active block body; a limit block, the number of the limit blocks and the guide blocks are equal and correspond one to one, the limit blocks and the guide blocks corresponding to each other are arranged on the circumferential outer side wall of the lower mold assembly, and there is a movement gap between the corresponding limit blocks and guide blocks in the radial direction of the lower mold assembly.

[0012] Furthermore, the upper side plate assembly includes: a middle sleeve, which is arranged on the outer peripheral side of the active block assembly and is in sliding contact with the active block assembly, and the driving structure is arranged on the circumferential outer side wall of the middle sleeve; an upper side plate body, which is connected to one end of the middle sleeve away from the lower half mold assembly.

[0013] Furthermore, there are guiding inclined surfaces in sliding contact with each other between the active block assembly and the middle sleeve, and between the active block assembly and the lower half mold assembly.

[0014] Furthermore, all the guide slopes gradually rise in a direction approaching the axis of the tire.

[0015] Applying the technical solution of the utility model, the tire mold in the present application includes an upper side plate assembly, a lower half mold assembly, an active block assembly and a transmission assembly. The upper side plate assembly and the lower half mold assembly are arranged relative to each other and enclose a vulcanization space, and at least a part of the upper side plate assembly can move relative to the lower half mold assembly along the axial direction of the tire; at least a part of the active block assembly is movably arranged between the upper side plate assembly and the lower half mold assembly and abuts against the upper side plate assembly and the lower half mold assembly respectively; the active block assembly is connected to the transmission assembly and moves with the transmission assembly, and the upper side plate assembly has a driving structure that cooperates with the transmission assembly. When the upper side plate assembly moves relative to the lower half mold assembly along the axial direction of the tire, the upper side plate assembly drives the transmission assembly to move radially along the tire through the driving structure.

[0016] When the tire mold in the present application is used, the tire mold has an active block assembly and the side of the active block assembly facing the tire has a pattern, so the active block assembly can replace the pattern ring in the prior art. At the same time, since the tire mold in the present application also has a transmission assembly, and during the mold opening process, as the upper side plate assembly moves relative to the lower half mold assembly, the upper side plate assembly can drive the active block assembly to move radially through the transmission assembly, thereby ensuring that the active block assembly does not move with the upper side plate assembly, and further ensuring that during the mold opening process, the upper side plate assembly and the active block assembly do not drive the tire to move together. Therefore, the tire mold in the present application effectively solves the problem in the prior art that the tire moves with the mold after vulcanization and it is difficult to remove the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a tire mold according to a specific embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the positional relationship of the lower half mold assembly, the active block body and the guide block of the tire mold;

[0020] Figure 3 A schematic diagram showing the positional relationship of the upper side plate assembly, the transmission assembly and the movable block assembly of a tire mold in a specific embodiment of the present application when the upper side plate assembly is not moving;

[0021] Figure 4 Shows Figure 3 Schematic diagram of the positional relationship of the upper side plate assembly, the transmission assembly and the active block assembly after the upper side plate assembly of the tire mold moves into place.

[0022] The above drawings include the following reference numerals:

[0023] 10. Upper side plate assembly; 11. Driving block; 111. Driving ramp; 12. Middle sleeve; 13. Upper side plate body; 20. Lower half mold assembly; 30. Active block assembly; 31. Active block body; 311. Guide groove; 40. Transmission assembly; 41. Transmission part; 42. Transmission arm; 43. Roller; 50. Guide block; 60. Limit block; 70. Guide ramp. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0027] In order to solve the problem in the prior art that the tire moves along with the mold after vulcanization and is difficult to remove the tire, the present application provides a tire mold.

[0028] like Figures 1 to 4 As shown, the tire mold in the present application includes an upper plate assembly 10, a lower mold assembly 20, an active block assembly 30 and a transmission assembly 40. The upper plate assembly 10 and the lower mold assembly 20 are arranged relative to each other and enclose a vulcanization space, and at least a portion of the upper plate assembly 10 can move relative to the lower mold assembly 20 along the axial direction of the tire; at least a portion of the active block assembly 30 is movably arranged between the upper plate assembly 10 and the lower mold assembly 20 and abuts against the upper plate assembly 10 and the lower mold assembly 20 respectively; the active block assembly 30 is connected to the transmission assembly 40 and moves with the transmission assembly 40, and the upper plate assembly 10 has a driving structure that cooperates with the transmission assembly 40. When the upper plate assembly 10 moves relative to the lower mold assembly 20 along the axial direction of the tire, the upper plate assembly 10 drives the transmission assembly 40 to move radially along the tire through the driving structure.

[0029] When the tire mold in the present application is used, the tire mold has an active block assembly 30 and the active block assembly 30 has a pattern on the side facing the tire, so the active block assembly 30 can replace the pattern ring in the prior art. At the same time, since the tire mold in the present application also has a transmission assembly 40, and during the mold opening process, as the upper side plate assembly 10 moves relative to the lower half mold assembly 20, the upper side plate assembly 10 can drive the active block assembly 30 to move radially through the transmission assembly 40, thereby ensuring that the active block assembly 30 does not move with the upper side plate assembly 10, and further ensuring that the upper side plate assembly 10 and the active block assembly 30 do not drive the tire to move together during the mold opening process. Therefore, the tire mold in the present application effectively solves the problem in the prior art that the tire moves with the mold after vulcanization and it is difficult to remove the tire.

[0030] Optionally, the upper side plate assembly in the present application can be moved under the drive of a vulcanizer.

[0031] Specifically, when the upper side plate assembly 10 moves in the axial direction of the tire in a direction away from the tire, the transmission assembly 40 drives the active block assembly 30 to move in the radial direction of the tire in a direction away from the tire. This arrangement ensures that during the mold opening process, the active block assembly 30 moves in the direction in which the tire diameter becomes larger, thereby ensuring that the vulcanized tire can be taken out more easily. In addition, it should be noted that in the present application, the diameter of the annular space surrounded by the active block assembly 30 is different according to the different positions of the upper side plate assembly 10, but the diameter of the minimum inscribed circle of the annular space surrounded by the active block assembly 30 is always greater than or equal to the outer diameter of the tire, thereby facilitating the removal of the vulcanized tire.

[0032] In a specific embodiment of the present application, the active block assembly 30 includes a plurality of active block bodies 31, and the plurality of active block bodies 31 are spaced around the periphery of the top of the lower half mold assembly 20, and the transmission assembly 40 includes a plurality of transmission parts 41, and each transmission part 41 is respectively connected to at least one different active block body 31. Preferably, the number of active block bodies 31 and transmission parts 41 is equal and one-to-one corresponding. That is to say, in this embodiment, when the upper plate assembly 10 moves in a direction away from the tire, different active block bodies 31 are driven by different transmission parts 41 of the transmission assembly 40 to move away from the tire in the radial direction of the tire, thereby further ensuring that the active block assembly 30 will not drive the tire to move together, thereby making it more convenient to remove the tire.

[0033] Specifically, the transmission part 41 includes a transmission arm 42 and a roller 43. There are two transmission arms 42, which are arranged at intervals. The transmission arm 42 is L-shaped and includes a first section and a second section connected in sequence. The end of the first section away from the second section is connected to the movable block body 31; the two ends of the roller 43 are respectively connected to the ends of the second sections of the two transmission arms 42 away from the first section and cooperate with the driving structure. In addition, the driving structure is a plurality of driving blocks 11 arranged on the circumferential outer side wall of the upper plate assembly 10, each roller 43 cooperates with at least one different driving block 11, and the driving block 11 has a driving inclined surface 111 that cooperates with the roller 43, and the driving inclined surface 111 gradually moves away from the roller 43 in the height direction of the upper plate assembly 10. In this way, during the mold opening process, when the upper plate assembly 10 moves in a direction away from the tire, the driving block 11 continuously squeezes the roller 43 through the driving inclined surface 111, and the roller 43 is subjected to the radial outward force of the tire, so that the transmission part 41 drives the active block body 31 to move in the radial direction of the tire in a direction away from the tire. At the same time, the cooperation between the roller 43 and the driving inclined surface 111 can effectively reduce the resistance encountered during the movement of the upper plate assembly 10, and can ensure that the movement of the active block body 31 is smoother.

[0034] Of course, a slope with an opposite inclination direction can also be provided below the driving slope 111 to connect and transition with the driving slope 111, so as to prevent the driving block 11 and the roller 43 from getting stuck after the upper side plate moves into place.

[0035] Optionally, the tire mold further includes a guide block 50 and a limit block 60, wherein there are multiple guide blocks 50, and each active block body 31 corresponds to at least one different guide block 50, and the guide block 50 is arranged on the side of the lower mold assembly 20 facing the active block body 31, and the active block body 31 is provided with a guide groove 311 corresponding to the guide block 50, and at least a part of the guide block 50 is located inside the guide groove 311, and when the active block body 31 moves along the radial direction of the tire, the guide block 50 moves along the guide groove 311 relative to the active block body 31; the number of limit blocks 60 and guide blocks 50 is equal and corresponds one to one, and the limit blocks 60 corresponding to the guide blocks 50 are arranged on the circumferential outer wall of the lower mold assembly 20, and there is a movement gap between the corresponding limit blocks 60 and guide blocks 50 in the radial direction of the lower mold assembly 20.

[0036] In a specific embodiment of the present application, the guide block 50 is T-shaped and includes a transverse portion and a vertical portion. The end of the vertical portion away from the transverse portion is connected to the lower mold assembly 20. At this time, the lower mold assembly 20 can be provided with a mounting groove corresponding to the vertical portion, and the transverse portion is located inside the guide groove 311. The circumferential outer wall of the active block body 31 has an opening connected to the guide groove 311, so that during the assembly process, the guide block 50 can enter the inside of the guide groove 311 through this opening. In addition, the opening width of the notch of the guide groove 311 is smaller than the length of the transverse portion, thereby ensuring that the transverse portion cannot be separated from the notch of the guide groove 311 but can only enter or exit the guide groove 311 through the opening of the circumferential outer wall of the active block body 31. By setting it in this way, it can be ensured that the active block body 31 can move in a preset direction, and the stability of the cooperation between the guide groove 311 and the guide block 50 can be ensured, so that the guide block 50 is difficult to separate from the guide groove 311. Furthermore, in this embodiment, the limit block 60 is detachably disposed on the lower mold assembly 20, and the maximum distance between the guide block 50 and the end of the limit block 60 that is close to each other is less than the length of the guide block 50, thereby ensuring that the guide block 50 cannot exit the guide groove 311 from the opening of the circumferential outer wall of the active block body 31 during use. Of course, in the actual application process, since the active block body 31 moves relative to the guide block 50, the limit block 60 actually acts as a limit stop for the active block body 31, so the partial surface of the limit block 60 facing the guide block 50 is opposite to the active block body 31. In other words, the height of the limit block 60 is greater than the height of the guide block 50, and the width of the limit block 60 is greater than the width of the lateral part of the guide block 50, and as long as one of the two conditions is met, the limit effect on the active block body 31 can be achieved.

[0037] Specifically, the upper plate assembly 10 includes a middle sleeve 12 and an upper plate body 13. The middle sleeve 12 is sleeved on the outer peripheral side of the active block assembly 30 and is in sliding contact with the active block assembly 30, and the driving structure is arranged on the circumferential outer side wall of the middle sleeve 12; the upper plate body 13 is connected to one end of the middle sleeve 12 away from the lower half mold assembly 20.

[0038] Specifically, there are guide slopes 70 that are in sliding contact with each other between the active block assembly 30 and the middle sleeve 12, and between the active block assembly 30 and the lower half mold assembly 20. Moreover, all the guide slopes 70 gradually rise in the direction close to the axis of the tire. By setting it in this way, when the upper side plate assembly 10 moves in the direction close to the tire, the middle sleeve 12 can squeeze the active block assembly 30 through the guide slopes 70 that cooperate with the active block assembly 30, so that the active block assembly 30 can move in the direction where the tire diameter becomes smaller. In a specific embodiment of the present application, all the active block bodies 31 of the active block assembly 30 have guide slopes 70. Moreover, although there are also guide slopes 70 between the active block assembly 30 and the lower half mold assembly 20, in the actual movement process, due to the action of the guide block 50, it is guaranteed that the active block assembly 30 will move in the radial direction of the tire.

[0039] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0040] 1. It effectively solves the problem in the prior art that the tire moves with the mold after vulcanization and is difficult to remove the tire;

[0041] 2. Simple structure and stable performance.

[0042] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0045] 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: Upper side plate assembly (10); A lower mold assembly (20), wherein the upper plate assembly (10) and the lower mold assembly (20) are arranged relative to each other and enclose a vulcanization space, and at least a portion of the upper plate assembly (10) is capable of moving relative to the lower mold assembly (20) along the axial direction of the tire; an active block assembly (30), at least a portion of which is movably disposed between the upper side plate assembly (10) and the lower half mold assembly (20) and abuts against the upper side plate assembly (10) and the lower half mold assembly (20) respectively; The transmission assembly (40) is connected to the movable block assembly (30) and moves with the transmission assembly (40), and the upper side plate assembly (10) has a driving structure that cooperates with the transmission assembly (40). When the upper side plate assembly (10) moves axially of the tire relative to the lower half mold assembly (20), the upper side plate assembly (10) drives the transmission assembly (40) to move radially of the tire through the driving structure.

2. The tire mold according to claim 1, characterized in that: When the upper side plate assembly (10) moves in the axial direction of the tire in a direction away from the tire, the transmission assembly (40) drives the movable block assembly (30) to move in the radial direction of the tire in a direction away from the tire.

3. The tire mold according to claim 1, characterized in that: The movable block assembly (30) comprises a plurality of movable block bodies (31), and the plurality of movable block bodies (31) are arranged at intervals around the periphery of the top end of the lower half mold assembly (20); the transmission assembly (40) comprises a plurality of transmission parts (41), and each of the transmission parts (41) is respectively connected to at least one different movable block body (31).

4. The tire mold according to claim 3, characterized in that: The number of the movable block bodies (31) and the transmission parts (41) are equal and correspond one to one.

5. The tire mold according to claim 3, characterized in that: The transmission part (41) comprises: A transmission arm (42), wherein there are two transmission arms (42), the two transmission arms (42) are arranged at an interval, the transmission arm (42) is L-shaped and comprises a first section and a second section connected in sequence, and an end of the first section away from the second section is connected to the movable block body (31); A roller (43), both ends of which are respectively connected to ends of the second sections of the two transmission arms (42) away from the first sections and cooperate with the driving structure.

6. The tire mold according to claim 5, characterized in that: The driving structure is a plurality of driving blocks (11) arranged on the circumferential outer wall of the upper plate assembly (10), each of the rollers (43) respectively cooperates with at least one different driving block (11), and the driving block (11) has a driving inclined surface (111) that cooperates with the roller (43), and the driving inclined surface (111) gradually moves away from the roller (43) in the height direction of the upper plate assembly (10).

7. The tire mold according to claim 5, characterized in that: The tire mold also includes: A guide block (50), wherein the guide blocks (50) are multiple, each of the active block bodies (31) corresponds to at least one different guide block (50), the guide block (50) is arranged on a side of the lower half mold assembly (20) facing the active block body (31), the active block body (31) is provided with a guide groove (311) corresponding to the guide block (50), at least a portion of the guide block (50) is located inside the guide groove (311), and when the active block body (31) moves along the radial direction of the tire, the guide block (50) moves along the guide groove (311) relative to the active block body (31); The limit blocks (60) are equal in number and correspond one to one with the guide blocks (50). The limit blocks (60) are arranged on the circumferential outer side wall of the lower half mold assembly (20) corresponding to the guide blocks (50), and there is a movement gap between the corresponding limit blocks (60) and the guide blocks (50) in the radial direction of the lower half mold assembly (20).

8. The tire mold according to any one of claims 1 to 7, characterized in that: The upper side plate assembly (10) comprises: A middle sleeve (12), the middle sleeve (12) being sleeved on the outer peripheral side of the movable block assembly (30) and in sliding contact with the movable block assembly (30), and the driving structure being arranged on the circumferential outer side wall of the middle sleeve (12); An upper side plate body (13), wherein the upper side plate body (13) is connected to an end of the middle sleeve (12) away from the lower half mold assembly (20).

9. The tire mold according to claim 8, characterized in that: There are guiding inclined surfaces (70) in sliding contact with each other between the movable block assembly (30) and the middle sleeve (12), and between the movable block assembly (30) and the lower half mold assembly (20).

10. The tire mold according to claim 9, characterized in that: All the guide slopes (70) gradually rise in a direction approaching the axis of the tire.

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