A tire vulcanization mold

Abstract

The utility model discloses a kind of tire vulcanization mould, it belongs to tire mould field, including mould shell component and the cavity component being set in mould shell component, the cavity component is composed of upper side plate, lower side plate, upper steel ring, lower steel ring and multiple pattern blocks;Still include clamping assembly, the clamping assembly can clamp capsule, tire is located between capsule and cavity component;On the cavity component close to tire bead position, and / or, on the mould shell component close to tire bead position, and / or, on the clamping assembly close to tire bead position is equipped with mounting groove, heating block is equipped in the mounting groove, ring groove is equipped on the heating block, heating element is embedded in the ring groove. Above-mentioned structure can be based on shortening tire overall vulcanization time, more adapt to the adjustment of different wiring law, different size specification heating element.

Description

Technical Field

[0001] This utility model relates to the field of tire molds, specifically to a tire vulcanization mold. Background Technology

[0002] Tire molds are the core equipment for the vulcanization and molding of tire blanks. In current vulcanization processes, the upper heating plate, lower heating plate, and middle mold sleeve of the mold are all equipped with heating units to provide the heat required for vulcanization to the tire blank. However, tires have complex structures, and the wall thickness varies significantly in different parts. According to the principle of heat conduction, areas with thicker walls require more heat and longer vulcanization time, while areas with thinner walls require less heat and shorter time.

[0003] To ensure complete vulcanization of the entire tire, the actual vulcanization time in production is often determined by the area with the thickest wall. This leads to two key issues: 1. Low vulcanization efficiency: The vulcanization of the thinnest wall area has already been completed, but it still needs to wait for the thickest wall area to reach the positive vulcanization state, which prolongs the overall vulcanization cycle.

[0004] 2. Risk of over-vulcanization: In areas with thinner wall thickness, over-vulcanization is very likely to occur due to continuous heating during the prolonged vulcanization process, which significantly damages the physical properties and service life of the tire.

[0005] The tire bead area, due to its structural characteristics, typically has a thick wall and requires a long vulcanization time. Crucially, this area suffers from low heat transfer efficiency and difficulty in temperature compensation within existing mold structures. For steam vulcanizing machines, the presence of condensate at the bottom of the bladder results in a lower temperature for the lower steel bead compared to the upper steel bead. This not only prolongs the vulcanization time but also leads to uneven vulcanization between the upper and lower tire sides. This issue becomes a bottleneck restricting improvements in vulcanization efficiency and also degrades tire performance.

[0006] To overcome the challenge of heating the tire bead, the industry has experimented with embedding heating elements directly into the steel rim or sidewall. However, this approach has significant drawbacks: 1. Since the mounting groove for embedding heating elements is directly machined into the steel ring or side plate, if a heating element with a different cross-section and different wiring pattern is needed, the steel ring or side plate needs to be re-machined. If the previous heating element is to be reused later, the entire steel ring or side plate must be replaced, which is very costly.

[0007] 2. The mounting groove for embedding heating elements is directly machined into the steel ring or side plate, which is not suitable for heating element heating experiments. It is very inconvenient to fine-tune the position of the heating element. If the steel ring and side plate are replaced due to the adjustment of the mounting groove position, the manufacturing cost is unbearable.

[0008] In view of the problems existing in the prior art, this utility model designs and manufactures a tire vulcanization mold to overcome the above defects. Summary of the Invention

[0009] To address the problems existing in the prior art, this utility model provides a tire vulcanization mold that can shorten the overall vulcanization time of the tire and better adapt to the adjustment of heating elements with different routing patterns and different sizes and specifications.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tire vulcanizing mold, comprising a mold shell assembly and a cavity assembly disposed within the mold shell assembly, wherein the cavity assembly is composed of an upper side plate, a lower side plate, an upper steel ring, a lower steel ring, and multiple pattern blocks; It also includes a clamping assembly capable of clamping the capsule, with the tire positioned between the capsule and the cavity assembly; A mounting groove is provided on the cavity assembly near the tire bead, and / or on the mold shell assembly near the tire bead, and / or on the clamping assembly near the tire bead. A heating block is provided in the mounting groove, and an annular groove is provided on the heating block. A heating element is embedded in the annular groove.

[0011] Preferably, the annular groove is disposed on the end face of the heating block near the bottom of the mounting groove.

[0012] Preferably, the mounting grooves on the cavity assembly are located between the upper side plate and the upper steel ring, and between the lower side plate and the lower steel ring.

[0013] Preferably, the mounting groove is provided on the upper side plate or upper steel ring, and on the lower side plate or lower steel ring; The annular groove is provided on the heating block end face near the upper side plate and on the heating block end face near the lower side plate; Alternatively, the annular groove is disposed on the end face of the heating block near the upper steel ring and on the end face of the heating block near the lower steel ring.

[0014] Preferably, the mold shell assembly includes a top cover, a base, and a guide ring, wherein the top cover and the base are disposed opposite to each other, and the guide ring is disposed between the top cover and the base; The mounting slots are located between the upper cover and the upper side plate, and between the base and the lower side plate.

[0015] Preferably, the mounting groove is disposed on the upper cover or upper side plate, and on the base or lower side plate; The annular groove is provided on the end face of the heating block near the top cover and on the end face of the heating block near the base; Alternatively, the annular groove is disposed on the heating block end face near the upper side plate and on the heating block end face near the lower side plate.

[0016] Preferably, the clamping assembly includes an upper steel ring and an upper clamping ring for clamping one end of the capsule, and a lower steel ring and a lower clamping ring for clamping the other end of the capsule; The mounting groove is located between the upper auxiliary steel ring and the upper clamping ring, and between the lower auxiliary steel ring and the lower clamping ring.

[0017] Preferably, the mounting groove is provided on the upper auxiliary steel ring or upper clamping ring, and on the lower auxiliary steel ring or lower clamping ring; The annular groove is provided on the end face of the heating block near the upper auxiliary steel ring and on the end face of the heating block near the lower auxiliary steel ring; Alternatively, the annular groove is disposed on the heating block end face near the upper clamping ring and on the heating block end face near the lower clamping ring.

[0018] Preferably, the thickness of the heating block is 10-20 mm.

[0019] Preferably, the heating block is made of aluminum or copper; The heating element is a heating tube or an induction coil.

[0020] The advantages of this utility model are: 1. This utility model shortens the overall vulcanization time of the tire by setting heating blocks and heating elements on the tire vulcanization mold at the bead position in the tire structure where more heat is required, thereby saving energy, reducing consumption, and improving production efficiency and tire production capacity. In addition, by reducing the overall vulcanization time of the thinner parts of the tire wall, it also avoids over-vulcanization, improves the overall vulcanization performance of the tire, and increases the service life of the tire.

[0021] 2. Since the annular groove is set on the heating block, when the size and specifications of the heating element are changed, the routing pattern of the annular groove changes, or the position of the annular groove needs to be adjusted, only the heating block needs to be replaced. There is no need to replace the side plate, steel ring and other parts, which greatly reduces the manufacturing cost. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a tire vulcanizing mold embodiment one, in which heating blocks are disposed on the upper and lower side plates; Figure 2 This is a partially enlarged schematic diagram of the position of the heating block on the upper side plate of Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the heating block being disposed on the upper and lower steel rings in Embodiment 1 of this utility model; Figure 4 This is a partially enlarged schematic diagram of the position of the heating block on the upper steel ring in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of Embodiment 2 of the present invention; Figure 6This is a partially enlarged schematic diagram showing the position of the heating block on the upper cover in Embodiment 2 of this utility model. Figure 7 This is a schematic diagram of Embodiment 3 of the present invention; Figure 8 This is a partially enlarged schematic diagram of the position of the heating block on the upper clamping ring in Embodiment 3 of this utility model; Figure 9 This is a schematic diagram of the heating element of this utility model installed on the heating block.

[0023] In the diagram: 1. Patterned block; 2. Upper side plate; 3. Lower side plate; 4. Upper steel rim; 5. Lower steel rim; 6. Top cover; 7. Base; 8. Guide ring; 9. Upper auxiliary steel rim; 10. Lower auxiliary steel rim; 11. Upper clamping ring; 12. Lower clamping ring; 13. Tire; 14. Capsule; 15. Heating block; 16. Heating element. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 9 As shown, a tire vulcanizing mold includes a mold shell assembly and a cavity assembly disposed within the mold shell assembly. The mold shell assembly includes an upper cover 6, a base 7, and a guide ring 8. The upper cover 6 and the base 7 are disposed opposite to each other, and the guide ring 8 is disposed between the upper cover 6 and the base 7.

[0026] The cavity assembly consists of an upper side plate 2, a lower side plate 3, an upper steel ring 4, a lower steel ring 5, and multiple tread blocks 1. The upper side plate 2 and the lower side plate 3 are arranged opposite to each other, and the tread blocks 1 are arranged between the upper side plate 2 and the lower side plate 3. The upper steel ring 4 is connected to the end of the upper side plate 2 away from the tread blocks 1, and the lower steel ring 5 is connected to the end of the lower side plate 3 away from the tread blocks 1. The tire 13 will be located in the cavity assembly.

[0027] It also includes a clamping assembly that can clamp the capsule 14. Specifically, the clamping assembly includes an upper steel ring 9 and an upper clamping ring 11 that clamp one end of the capsule 14, and a lower steel ring 10 and a lower clamping ring 12 that clamp the other end of the capsule 14. The tire 13 is located between the capsule 14 and the cavity assembly. The above structure is a conventional structure of tire vulcanizing mold and will not be described in detail here.

[0028] In order to reduce the vulcanization time at the tire bead position, the present invention provides a mounting groove on the cavity assembly near the tire bead position, and / or on the mold shell assembly near the tire bead position, and / or on the clamping assembly near the tire bead position. A heating block 15 is provided in the mounting groove, and a heating element 16 is embedded in the heating block 15.

[0029] By setting heating blocks 15 and heating elements 16 on the tire vulcanizing mold at the bead positions in the tire 13 structure that require more heat, the overall vulcanization time of the tire 13 is shortened, energy is saved and consumption is reduced, and production efficiency and tire 13 production capacity are improved. In addition, by reducing the overall vulcanization time at the thinner parts of the tire 13, over-vulcanization is avoided, the overall vulcanization performance of the tire 13 is improved, and the service life of the tire 13 is increased.

[0030] Furthermore, by setting the annular groove on the heating block 15, when the size and specifications of the heating element 16 are changed, the routing pattern of the annular groove changes, or the position of the annular groove needs to be adjusted, only the heating block 15 needs to be replaced, without the need to replace the side plate, steel ring, or other parts, which greatly reduces the manufacturing cost.

[0031] Of course, the wall thickness of the tread portion of tire 13 is also relatively large. Combined with the mold structure corresponding to the bead position, a corresponding mounting groove can be set near the tread portion, and a heating block 15 and a heating element 16 can be set in the mounting groove. This embodiment is not specifically shown in the accompanying drawings, but it is also within the protection scope of this solution.

[0032] The thickness of the heating block 15 of this utility model is 10-20mm. After the heating block 15 is installed in the mounting groove, it should be flush with the end face of the mounting groove opening. The material of the heating block 15 is preferably a material with high heat transfer efficiency such as aluminum or copper. The heating element 16 is preferably a heating tube or induction coil.

[0033] The annular groove on the heating block 15 of this utility model is preferably set on the end face of the heating block 15 near the bottom of the mounting groove. When the heating block 15 is fixed in the mounting groove with connecting screws, the heating element 16 in the annular groove can be directly positioned. Of course, this utility model does not specifically limit the position of the annular groove, as long as the heating element 16 can be stably positioned in the annular groove. Example 1

[0034] like Figures 1 to 4 As shown, the mounting grooves on the cavity assembly are located between the upper side plate 2 and the upper steel ring 4, and between the lower side plate 3 and the lower steel ring 5. Specifically, the mounting grooves are located on the upper side plate 2 or the upper steel ring 4, and on the lower side plate 3 or the lower steel ring 5. More specifically, the mounting grooves are located on the end face of the upper side plate 2 near the upper steel ring 4, or on the end face of the upper steel ring 4 near the upper side plate 2, and on the end face of the lower side plate 3 near the lower steel ring 5, or on the end face of the lower steel ring 5 near the lower side plate 3. The positions of the mounting grooves are set reasonably according to needs.

[0035] The annular groove is provided on the end face of the heating block 15 near the upper side plate 2 and the end face of the heating block 15 near the lower side plate 3; or, the annular groove is provided on the end face of the heating block 15 near the upper steel ring 4 and the end face of the heating block 15 near the lower steel ring 5. The selection of the above annular groove positions can ensure the fixation of the heating element 16. Example 2

[0036] like Figure 5 , Figure 6 As shown, the mounting groove is located between the upper cover 6 and the upper side plate 2, and between the base 7 and the lower side plate 3. Specifically, the mounting groove is located on the upper cover 6 or the upper side plate 2, and on the base 7 or the lower side plate 3. Specifically, the mounting groove is located on the end face of the upper cover 6 near the upper side plate 2 or on the end face of the upper side plate 2 near the upper cover 6, and on the end face of the base 7 near the lower side plate 3 or on the end face of the lower side plate 3 near the base 7.

[0037] The annular groove is provided on the end face of the heating block 15 near the upper cover 6 and on the end face of the heating block 15 near the base 7; or, the annular groove is provided on the end face of the heating block 15 near the upper side plate 2 and on the end face of the heating block 15 near the lower side plate 3. Example 3

[0038] like Figure 7 , Figure 8 As shown, the mounting groove is disposed between the upper auxiliary steel ring 9 and the upper clamping ring 11, and between the lower auxiliary steel ring 10 and the lower clamping ring 12. Specifically, the mounting groove is disposed on the upper auxiliary steel ring 9 or the upper clamping ring 11, and on the lower auxiliary steel ring 10 or the lower clamping ring 12. Specifically, the mounting groove is disposed on the end face of the upper auxiliary steel ring 9 near the upper clamping ring 11 or on the end face of the upper clamping ring 11 near the upper auxiliary steel ring 9, and on the end face of the lower auxiliary steel ring 10 near the lower clamping ring 12 or on the end face of the lower clamping ring 12 near the lower auxiliary steel ring 10.

[0039] The annular groove is provided on the end face of the heating block 15 near the upper auxiliary steel ring 9 and the end face of the heating block 15 near the lower auxiliary steel ring 10; or, the annular groove is provided on the end face of the heating block 15 near the upper clamping ring 11 and the end face of the heating block 15 near the lower clamping ring 12.

[0040] Specifically, different embodiment structures can be selected reasonably based on the mold structure and heating effect, or the corresponding heating block 15 can be replaced to ensure that the tire vulcanizing mold that meets the usage effect is finally obtained.

[0041] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A tire vulcanizing mold, characterized in that, It includes a mold shell assembly and a cavity assembly disposed within the mold shell assembly. The cavity assembly consists of an upper side plate (2), a lower side plate (3), an upper steel ring (4), a lower steel ring (5), and multiple patterned blocks (1). It also includes a clamping assembly capable of clamping the capsule (14), with the tire (13) located between the capsule (14) and the cavity assembly; A mounting groove is provided on the cavity assembly near the tire (13) bead position, and / or on the mold shell assembly near the tire (13) bead position, and / or on the clamping assembly near the tire (13) bead position, wherein a heating block (15) is provided in the mounting groove, and an annular groove is provided on the heating block (15), wherein a heating element (16) is embedded in the annular groove.

2. The tire vulcanizing mold according to claim 1, characterized in that, The annular groove is located on the end face of the heating block (15) near the bottom of the mounting groove.

3. The tire vulcanizing mold according to claim 1, characterized in that, The mounting slots on the cavity assembly are located between the upper side plate (2) and the upper steel ring (4), and between the lower side plate (3) and the lower steel ring (5).

4. A tire vulcanizing mold according to claim 3, characterized in that, The mounting groove is provided on the upper side plate (2) or the upper steel ring (4), and on the lower side plate (3) or the lower steel ring (5); The annular groove is provided on the end face of the heating block (15) near the upper side plate (2) and on the end face of the heating block (15) near the lower side plate (3); Alternatively, the annular groove is provided on the end face of the heating block (15) near the upper steel ring (4) and on the end face of the heating block (15) near the lower steel ring (5).

5. A tire vulcanizing mold according to claim 1, characterized in that, The mold shell assembly includes an upper cover (6), a base (7) and a guide ring (8). The upper cover (6) and the base (7) are arranged opposite to each other, and the guide ring (8) is arranged between the upper cover (6) and the base (7). The mounting slot is located between the upper cover (6) and the upper side plate (2), and between the base (7) and the lower side plate (3).

6. A tire vulcanizing mold according to claim 5, characterized in that, The mounting slot is provided on the upper cover (6) or upper side plate (2), and on the base (7) or lower side plate (3); The annular groove is provided on the end face of the heating block (15) near the upper cover (6) and on the end face of the heating block (15) near the base (7); Alternatively, the annular groove is provided on the end face of the heating block (15) near the upper side plate (2) and on the end face of the heating block (15) near the lower side plate (3).

7. A tire vulcanizing mold according to claim 1, characterized in that, The clamping assembly includes an upper steel ring (9) and an upper clamping ring (11) clamping one end of the capsule (14), and a lower steel ring (10) and a lower clamping ring (12) clamping the other end of the capsule (14). The mounting groove is located between the upper auxiliary steel ring (9) and the upper clamping ring (11), and between the lower auxiliary steel ring (10) and the lower clamping ring (12).

8. A tire vulcanizing mold according to claim 7, characterized in that, The mounting groove is provided on the upper auxiliary steel ring (9) or the upper clamping ring (11), and on the lower auxiliary steel ring (10) or the lower clamping ring (12). The annular groove is provided on the end face of the heating block (15) near the upper auxiliary steel ring (9) and on the end face of the heating block (15) near the lower auxiliary steel ring (10); Alternatively, the annular groove is provided on the end face of the heating block (15) near the upper clamping ring (11) and on the end face of the heating block (15) near the lower clamping ring (12).

9. A tire vulcanizing mold according to claim 1, characterized in that, The thickness of the heating block (15) is 10-20 mm.

10. A tire vulcanizing mold according to claim 1, characterized in that, The heating block (15) is made of aluminum or copper; The heating element (16) is a heating tube or an induction coil.

Images