Tire and forming device thereof

Abstract

The invention discloses a tire which comprises a tire tread, pattern grooves are formed in the tire tread, a groove hole pointing to the center of the tire from the tire tread is further formed in the tire tread, and a tire tread abrasion mark is arranged in the groove hole; the tire tread abrasion mark comprises a base body, the base body is provided with a plurality of fan-shaped blocks which are arranged in a continuous spiral step shape along the axis of the base body, the upper surface of the fan-shaped block with the highest height is flush with a tire tread, and the upper surface of the fan-shaped block with the lowest height is located at the tire abrasion limiting position. Abrasion columns are arranged on the tread portions of the pattern blocks. The tread abrasion mark with the spiral step-shaped structure is arranged on the tread, the central angle of the fan-shaped surface of the tread abrasion mark is gradually increased along with abrasion of the tire, the abrasion state of the tire can be conveniently, simply and rapidly recognized, and when the tread abrasion device is abraded into a whole circle, the tire is in an extreme abrasion state, and the tire needs to be replaced is prompted.

Description

Technical Field

[0001] The present invention relates to the field of tires, and particularly to a tire and its forming device. Background Art

[0002] As a key component for ensuring the safe driving and performance of vehicles, the wear condition of tires is directly related to driving safety, fuel efficiency, and handling stability. With the accumulation of vehicle mileage, the continuous friction between the tires and the road surface inevitably leads to a gradual reduction in the tread depth of the tires, thereby affecting the drainage, grip, and anti-skid ability of the tires. According to the national standards of our country, the wear limit of the tread pattern of radial tires used for cars is strictly set at 1.6 mm, while the wear limit of radial tires used for trucks and buses is 2.0 mm to ensure that the tires can provide sufficient safety performance under various road conditions.

[0003] To facilitate users to monitor the tire wear degree, the mainstream tire designs on the current market will set raised structures at specific positions on the tread. These raised parts, as wear indication marks, are usually located at the bottom of the tire tread grooves. When the tire surface wears to be flush with these raised parts, it means that the tire has reached or is close to its predetermined service life limit, prompting the user to replace the tire in a timely manner. However, this type of raised wear mark can only provide a warning when the tire wears to the limit state and cannot reflect the wear condition of the tire in real time during the tire wear process. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a tire and its forming device to solve the problem that the existing raised wear marks cannot reflect the wear condition of the tire in real time and facilitate the simple and rapid identification of the wear state of the tire.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: A tire includes a tread. Tread grooves are provided on the tread, and slot holes pointing from the tread to the center of the tire are also provided on the tread. Tread wear marks are provided in the slot holes; the tread wear marks include a base body, and a plurality of fan-shaped blocks are arranged on the base body in a spiral stepped manner along its axis. The upper surface of the fan-shaped block with the highest height is flush with the tread, and the upper surface of the fan-shaped block with the lowest height is located at the limit position of tire wear.

[0006] Further, the number of the fan-shaped blocks is 5 - 12, and the central angle of each fan-shaped block is equal, and the sum of the central angles of all the fan-shaped blocks is 360°.

[0007] Further, the bottom surface of the first fan-shaped block in two adjacent fan-shaped blocks is flush with the top surface of the second fan-shaped block, and the orthographic projections of the first fan-shaped block and the second fan-shaped block do not coincide but share adjacent sides.

[0008] Furthermore, a digital identifier is provided on the upper surface of the sector block, and the value of the digital identifier increases as the height of the sector block increases.

[0009] Furthermore, the digital identifier is in a convex or concave structure on the sector block. When the digital identifier is in a concave structure, the bottom surface of the digital identifier of the first sector block is flush with the top surface of the second sector block among two adjacent sector blocks.

[0010] Furthermore, there are three sets of tread wear indicators, one set is arranged in the middle of the tread, and the other two sets are respectively arranged on both sides of the tread.

[0011] The present invention also provides a tire molding device for generating the above-mentioned tire, including a mold shell assembly and a cavity assembly arranged in the mold shell assembly; the cavity assembly includes a tread block, and wear pillars are arranged at the tread part of the tread block, and the wear pillars are matched with the tread wear indicators for the molding of the tread wear indicators.

[0012] Furthermore, threaded holes are provided on the tread block, external threads are provided at the bottom of the wear pillars, and the wear pillars are threadedly connected to the tread block.

[0013] Furthermore, threaded posts are provided on the tread block, sleeves are provided at the lower part of the wear pillars, internal threads are provided inside the sleeves, the lower end of the sleeves is threadedly connected to the threaded posts, and the upper end of the sleeves is threadedly connected to the wear pillars to realize the connection between the wear pillars and the tread block.

[0014] Furthermore, the wear pillars and the tread block are integrally formed.

[0015] The beneficial effects of the present invention are as follows: 1) By arranging the tread wear indicators with a spiral stepped structure on the tread, as the tire wears, the central angle of the sector surface of the tread wear indicators gradually increases, which is convenient for simply and quickly identifying the wear state of the tire. When the tread wear device wears into a complete circle, the tire is in an extreme wear state, indicating that the tire needs to be replaced.

[0016] 2) By arranging the tread wear indicators both in the middle and on both sides of the tread, it is convenient to judge the wear conditions of different positions of the tire, so as to judge whether there is uneven wear of the tire.

[0017] 3) Digital identifiers are arranged on the sector blocks, which is convenient for intuitively judging the degree of tread wear. Description of the Drawings

[0018] Att Figure 1 is a schematic diagram of a partial structure of a tire according to the present invention.

[0019] Att Figure 2 is a schematic diagram of the tread wear indicator.

[0020] AttFigure 3 It is a partial sectional view of a tire.

[0021] Attached Figure 4 It is a schematic diagram of the structure of the wear column.

[0022] Attached Figure 5 It is a schematic diagram of the connection between the wear column and the tire mold in Embodiment 2.

[0023] Attached Figure 6 It is a schematic diagram of the connection between the wear column and the tire mold in Embodiment 3.

[0024] Attached Figure 7 It is a schematic diagram of the connection between the wear column and the tire mold in Embodiment 4.

[0025] In the figure, 1 is the tire; 2 is the tread groove; 3 is the slot hole; 4 is the tread wear mark; 5 is the digital identifier; 6 is the tread block; 7 is the threaded hole; 8 is the wear column; 81 is the fan-shaped groove; 9 is the sleeve; 10 is the threaded post. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached Figures 1-6 , it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] Embodiment 1 As Figure 1 , Figure 3 shown, a tire includes a tread, and the tread is provided with a tread groove 2, and the tread is also provided with a slot hole 3 pointing from the tread to the center of the tire 1, and a tread wear mark 4 is provided in the slot hole 3; as Figure 2 shown, the tread wear mark 4 includes a base body, and a plurality of fan-shaped blocks are arranged on the base body in a continuous spiral stepped manner along its axis, and the upper surface of the fan-shaped block with the highest height is flush with the tread, and the upper surface of the fan-shaped block with the lowest height is located at the limit position of the wear of the tire 1.

[0029] The thickness of each stepped sector block represents a range of partial wear failure, which is used to reflect the real-time wear condition of the tire 1. As the tire 1 wears, the central angle of the sector surface of the tread wear indicator 4 becomes larger and larger. When the tread wear indicator 4 wears to the lowest sector block, the tire 1 is in the state of extreme wear, indicating that the tire needs to be replaced.

[0030] The number of the sector blocks is 5 - 12, and the central angles of each sector block are equal. The sum of the central angles of all sector blocks is 360°. When the tread wear indicator 4 wears to the lowest sector block, the tread wear indicator 4 forms a complete circle, which is convenient for identifying the tire wear limit state.

[0031] As Figure 2 shown, the bottom surface of the first sector block in two adjacent sector blocks is flush with the top surface of the second sector block, and the orthographic projections of the first sector block and the second sector block do not coincide but share adjacent sides.

[0032] As Figure 2 shown, a digital identifier 5 is provided on the upper surface of the sector block, and the value of the digital identifier 5 increases with the increase of the height of the sector block. The digital identifier 5 is used to intuitively represent the wear state of the tread wear indicator 4.

[0033] The digital identifier 5 is in a convex or concave structure on the sector block. As Figure 2 shown, in this embodiment, the digital identifier adopts a convex structure; when the digital identifier 5 is in a concave structure, the bottom surface of the digital identifier 5 of the first sector block in two adjacent sector blocks is flush with the top surface of the second sector block.

[0034] As Figure 1 shown, the tread wear indicator 4 is provided with three groups, one group is arranged in the middle of the tread, and the other two groups are respectively arranged on both sides of the tread. By providing multiple groups of tread wear indicators 4, it is used to judge the wear conditions of different positions of the tire 1. According to the wear conditions of the three groups of tread wear indicators 4, it is convenient to judge whether there is uneven wear of the tire.

[0035] Embodiment 2 The present invention also provides a tire forming device for generating the above-mentioned tire, including a mold shell assembly and a cavity assembly arranged in the mold shell assembly. The mold shell assembly and the cavity assembly are common parts of the tire mold and will not be elaborated here; the cavity assembly includes a tread block 6, as Figure 4 、 Figure 5As shown, wear columns 8 are provided at the tread part of the tread block 6. The wear columns 8 are matched with the tread wear indicators 4 and are used for the formation of the tread wear indicators 4. Specifically, the wear column 8 includes a column body, and a number of sector-shaped grooves 81 are arranged on the column body in a continuous spiral staircase shape along its axis. The sector-shaped groove with the highest height corresponds to the position of the sector-shaped block with the lowest height, and the sector-shaped groove with the lowest height corresponds to the position of the sector-shaped block with the highest height.

[0036] As Figure 5 shown, threaded holes 7 are provided on the tread block 6. External threads are provided at the bottom of the wear column 8, and the wear column 8 is threadedly connected to the tread block 6.

[0037] Embodiment 3 The difference from Embodiment 1 is that, as Figure 6 shown, threaded posts 10 are provided on the tread block 6. A sleeve 9 is provided at the lower part of the wear column 8. Threads are provided inside the sleeve 9. The lower end of the sleeve 9 is threadedly connected to the threaded post 10, and the upper end of the sleeve 9 is threadedly connected to the wear column 8, realizing the connection between the wear column 8 and the tread block 6.

[0038] Embodiment 4 The difference from Embodiment 1 is that, as Figure 7 shown, the wear column 8 and the tread block 6 are integrally formed.

[0039] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A tire, including a tread, wherein the tread is provided with tread grooves (2), characterized in that, The tread surface is also provided with slots (3) pointing from the tread surface towards the center of the tire (1), and tread wear indicators (4) are arranged in the slots (3); the tread wear indicators (4) include a base body, and a number of fan-shaped blocks are arranged on the base body in a continuous spiral stepped manner along its axis. The upper surface of the fan-shaped block with the highest height is flush with the tread surface, and the upper surface of the fan-shaped block with the lowest height is located at the limit position of tire wear.

2. A tire according to claim 1, characterized in that, The number of the fan-shaped blocks is 5 - 12, and the central angle of each fan-shaped block is equal, and the sum of the central angles of all the fan-shaped blocks is 360°.

3. A tire according to claim 1, characterized in that, The bottom surface of the first fan-shaped block in two adjacent fan-shaped blocks is flush with the top surface of the second fan-shaped block, and the orthographic projections of the first fan-shaped block and the second fan-shaped block do not coincide but share an adjacent side.

4. A tire according to claim 1, characterized in that, The upper surface of the fan-shaped block is provided with a numerical identifier (5), and the value of the numerical identifier (5) increases as the height of the fan-shaped block increases.

5. A tire according to claim 5, characterized in that, The numerical identifier (5) is in a convex or concave structure on the fan-shaped block. When the numerical identifier (5) is in a concave structure, the bottom surface of the numerical identifier (5) of the first fan-shaped block in two adjacent fan-shaped blocks is flush with the top surface of the second fan-shaped block.

6. A tire according to claim 1, characterized in that, There are three groups of the tread wear indicators (4), one group is arranged in the middle of the tread surface, and the other two groups are respectively arranged on both sides of the tread surface.

7. A tire forming device for generating the tire according to any one of claims 1-6, comprising a mold shell assembly and a cavity assembly disposed within the mold shell assembly; the cavity assembly includes a tread block (6), characterized in that, Wear posts (8) are arranged at the tread part of the tread blocks (6), and the wear posts (8) are matched with the tread wear indicators (4) for forming the tread wear indicators (4).

8. A tire forming device according to claim 7, characterized in that, Threaded holes (7) are provided on the tread blocks (6), external threads are provided at the bottom of the wear posts (8), and the wear posts (8) are threadedly connected to the tread blocks (6).

9. A tire forming device according to claim 7, wherein, Threaded posts (10) are provided on the tread blocks (6), sleeves (9) are provided at the lower part of the wear posts (8), internal threads are provided inside the sleeves (9), the lower end of the sleeves (9) is threadedly connected to the threaded posts (10), and the upper end of the sleeves (9) is threadedly connected to the wear posts (8) to realize the connection between the wear posts (8) and the tread blocks (6).

10. A tire forming device according to claim 7, characterized in that, The wear posts (8) and the tread blocks (6) are integrally formed.

Images