Tire mold
By designing concentric circle embedded steel sheets on tire molds and vulcanizing them to create variable shape tread grooves, the problem of tire wear not being easily judged is solved, enabling intuitive observation of tire wear and improving safety.
Patent Information
- Application Number
- CN202423297033.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The current tire wear assessment method is not intuitive and requires close observation of the bulges at the bottom of the grooves, making it difficult to quickly determine whether tires need to be replaced.
Design a tire mold that uses first and second steel sheets of different heights installed on the tread blocks to form a concentric embedded structure. Vulcanize the tread grooves to create grooves of different depths. The shape changes from a simple snowflake to a simple sun as wear increases, allowing for a visual assessment of the wear level.
It enables a direct assessment of tire wear, reducing the occurrence of dangerous accidents and improving safety.
Smart Images
Figure CN223777880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire vulcanization, specifically to a tire mold. Background Technology
[0002] Currently, most methods on the market to determine whether tire wear has failed involve adding protrusions to the bottom of the tire grooves. When the tread wears down to the level of these protrusions, it indicates that the tire wear has failed, the tire is severely worn, and it needs to be replaced. However, since this type of wear is located in the tire grooves, it requires close inspection of the tire to determine whether it needs to be replaced. It is not a very intuitive way to judge whether the tire needs to be replaced. Utility Model Content
[0003] To address the aforementioned problems, this invention designs a tire mold for vulcanizing tires, enabling a clear and intuitive assessment of tire wear. The solution is as follows:
[0004] A tire mold includes a steel shell, a top cover, a base, and a tread block. The tread block is characterized by having a plurality of first steel sheets and second steel sheets mounted on it. The height of the first steel sheets protruding from the surface of the tire mold is greater than the height of the second steel sheets protruding from the surface of the tire mold. The first steel sheets are of two shapes: an arc-shaped steel sheet and a plate-shaped steel sheet. The second steel sheets are all plate-shaped steel sheets. The first and second steel sheets are embedded in the tread block. At least two of the arc-shaped steel sheets or the entire steel sheet ring is embedded to form a first circle. A plurality of second steel sheets extend and are embedded along the diameter of the first circle to both ends, with an embedding length equal to the diameter D1 of the second circle. The diameter D1 of the second circle is greater than the diameter D2 of the first circle. The first circle and the second circle are concentric circles.
[0005] As a preferred approach, the diameter length D2 of the first circle is in the range of 5-10 mm, and the diameter length D1 of the second circle is 1.13-1.2 times the diameter length D2 of the first circle.
[0006] As a preferred method, the height H1 of the second steel sheet protruding from the surface of the tire mold is 1-10 mm, and the height H2 of the first steel sheet protruding from the surface of the tire mold is 1.3-1.7 times the height H1 of the second steel sheet protruding from the surface of the tire mold.
[0007] As a preferred method, multiple first steel sheets extend and embed into each other along the diameter of the second circle, with the embedding starting point on the circle of the second circle, until a third circle diameter is formed. The length of the third circle diameter D3 is 1.4-2 times the length of the second circle diameter D1, and D3 ≤ 20mm. The third circle and the second circle are concentric circles. The embedding length L of the first steel sheet is (D3-D1).
[0008] As a preferred embodiment, the first steel sheet has symmetrically arranged embedding paths for the second steel sheet on both sides of the plate-shaped steel sheet embedding path, with at least one second steel sheet embedded in each embedding path. The angle between the straight lines containing the embedding paths of the two second steel sheets is θ, and the range of θ is 10-170°.
[0009] As a preferred method, the two embedding paths of the second steel sheet intersect with the embedding path of the plate-shaped steel sheet of the first steel sheet at point M, where M is located at 1 / 3 to 3 / 4 of the length of the embedding path of the plate-shaped steel sheet of the first steel sheet.
[0010] As a preferred method, the embedding path length d of the second steel sheet is 1 / 2 to 3 / 4 times the plate-shaped steel sheet embedding length L of the first steel sheet.
[0011] As a preferred method, at least one of the second steel sheets is symmetrically embedded on both sides of the plate-shaped steel sheet of the first steel sheet, and the angle between the straight lines of the embedding path is θ, the range of θ being 10-170°.
[0012] As a preferred method, the depth t of the first steel sheet and the second steel sheet embedded in the patterned block is 3-15mm.
[0013] A tire, which is vulcanized using the aforementioned tire mold.
[0014] In this invention, "the diameter extends to both ends" means that along the diameter of the circle, both ends of the diameter extend simultaneously in a direction away from the center of the circle.
[0015] Beneficial effects:
[0016] The tire mold designed in this utility model can vulcanize tire wear indicators with two different depths of tread grooves. These indicators will change shape as the tire wears during use, changing from a snowflake shape to a simple sun shape. This allows for a direct observation of the tire's driving condition, making it easier to judge the degree of tire wear and reducing the occurrence of dangerous accidents. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of a tire mold structure.
[0019] Figure 2This is a simplified snowflake shape diagram of the first and second steel sheets.
[0020] Figure 3 This is a schematic diagram of the first and second steel sheets being embedded into the patterned block;
[0021] Figure 4 The first steel sheet is embedded in a patterned block to form a simplified sun shape.
[0022] Figure 5 The diagram shows the first and second steel sheets embedded in a patterned block, forming a simple snowflake shape.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Steel shell; 2. Top cover; 3. Base; 4. Patterned block; 5. First steel sheet; 6. Second steel sheet; 51. Plate-shaped steel sheet; 52. Curved steel sheet. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Please refer to Figures 1-5 This utility model provides one implementation method.
[0030] Examples 1-7
[0031] A tire mold includes a steel shell 1, a top cover 2, a base 3, and tread blocks 4. Several first steel plates 5 and second steel plates 6 are mounted on the tread blocks 4. The height of the first steel plates 5 protruding from the surface of the tire mold is greater than the height of the second steel plates 6. The height H1 of the second steel plates 6 protruding from the surface of the tire mold is 1-10 mm, and the height H2 of the first steel plates 5 protruding from the surface of the tire mold is 1.3-1.7 times the height H1 of the second steel plates 6 protruding from the surface of the tire mold. The first steel plates 5 have two shapes: a plate-shaped steel plate 51. Both the arc-shaped steel sheet 52 and the second steel sheet 6 are plate-shaped steel sheets 51. The first steel sheet 5 and the second steel sheet 6 are embedded in the patterned block 4. Multiple arc-shaped steel sheets 52 are embedded to form a first circle with a diameter of D2, ranging from 5 to 10 mm. Multiple second steel sheets 6 extend and embed themselves along the diameter of the first circle to both ends, with an embedding length equal to the diameter of the second circle, D1. The first circle and the second circle are concentric circles. The diameter of the second circle, D1, is 1.13 to 1.20 times the diameter of the first circle, D2. Multiple first steel sheets 52... The plate-shaped steel sheet 51 extends and embeds itself along the diameter of the second circle, starting from the second circle, until it forms a third circle with a diameter length D3. The diameter length D3 is 1.4-2 times the diameter length D1 of the second circle, and D3 ≤ 20mm. The third circle and the second circle are concentric. The embedding length L of the plate-shaped steel sheet 51 of the first steel sheet 5 is (D3-D1). Embedding paths of the second steel sheet 6 are symmetrically arranged on both sides of the embedding path of the plate-shaped steel sheet 51 of the first steel sheet 5, and each side of the embedding path has at least one... A second steel sheet 6 is embedded, and the angle between the straight lines containing the embedding paths of the two second steel sheets 6 is θ, which ranges from 10 to 170°; the two embedding paths of the second steel sheet 6 intersect the embedding path of the plate-shaped steel sheet 51 of the first steel sheet 5 at point M. Along the direction away from the center, M is located at 1 / 3 to 3 / 4 of the embedding path length of the plate-shaped steel sheet 51 of the first steel sheet 5, and the embedding path length d of the second steel sheet 6 is 1 / 2 to 3 / 4 times the embedding length L of the plate-shaped steel sheet 51 of the first steel sheet 5;
[0032] The specific data is as follows:
[0033] D1 / mm D2 / mm D3 / mm L / mm d / mm H1 / mm H2 / mm θ / ° t / mm Position of M Example 1 5.7 5 8 2.3 1.7 1 1.7 10 3 At 1.4mm Example 2 7.8 6 11.7 3.9 2.2 3 5 40 5 At 1.3mm Example 3 8 7 11.2 3.2 2 5 6.5 70 8 At 2.3mm Example 4 8.7 7.5 14 6.5 4 6.5 9 90 10 At 2.6mm Example 5 9.3 8 16 8 6 7.5 12 120 12 6mm Example 6 10.7 9 19 10 5 8.5 13 150 13.5 5mm Example 7 12 10 20 8 5.6 10 13.5 170 15 At 3.6mm
[0034] Example 8 differs from Examples 1-7 in that the arc-shaped steel sheet 52 of the first steel sheet 5 is an integral steel sheet ring with a diameter and length of D2.
[0035] Application: This invention utilizes a tire mold designed for vulcanizing tires. The steel sheets on the mold's tread blocks penetrate the tire rubber under high-temperature vulcanization conditions. After vulcanization, the mold is opened, and the vulcanized tire is removed. This results in grooves of varying depths forming on the tire surface, resembling simple snowflakes. When this tire is in use, the tread exhibits a simple snowflake pattern, indicating strong friction and suitability for use on snow. As the tire wears down, the shallower grooves become flush with the surface, leaving only deeper grooves. At this point, the tread pattern resembles a simple sun, indicating that the tire is no longer suitable for use on snow.
[0036] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tire mold, comprising a steel shell (1), a top cover (2), a base (3), and tread blocks (4), characterized in that, The pattern block (4) is equipped with a plurality of first steel plates (5) and second steel plates (6). The height of the first steel plate (5) protruding from the surface of the tire mold is higher than the height of the second steel plate (6) protruding from the surface of the tire mold. The first steel plate (5) has two shapes, namely an arc-shaped steel plate (52) and a plate-shaped steel plate (51). The second steel plates (6) are all plate-shaped steel plates (51). The first steel plate (5) and the second steel plate (6) are embedded in the pattern block (4). At least two of the arc-shaped steel plates (52) or the entire steel plate ring are embedded to form a first circle. A plurality of second steel plates (6) extend and are embedded at both ends along the diameter of the first circle. The embedding length is the diameter length D1 of the second circle. The diameter length D1 of the second circle is greater than the diameter length D2 of the first circle. The first circle and the second circle are concentric circles.
2. A tire mold according to claim 1, characterized in that, The diameter length D2 of the first circle is in the range of 5-10 mm, and the diameter length D1 of the second circle is 1.13-1.20 times that of the diameter length D2 of the first circle.
3. A tire mold according to claim 1, characterized in that, The height H1 of the second steel sheet (6) protruding from the surface of the tire mold is 1-10mm, and the height H2 of the first steel sheet (5) protruding from the surface of the tire mold is 1.3-1.7 times that of the height H1 of the second steel sheet (6) protruding from the surface of the tire mold.
4. A tire mold according to claim 1, characterized in that, Multiple first steel sheets (5) are embedded in the plate-shaped steel sheets (51) along the diameter of the second circle at both ends, with the embedding starting point on the circle of the second circle, until a third circle diameter is formed. The length of the third circle diameter D3 is 1.4-2 times the length of the second circle diameter D1, and D3≤20mm. The third circle and the second circle are concentric circles. The embedding length L of the plate-shaped steel sheets (51) of the first steel sheet (5) is (D3-D1).
5. A tire mold according to claim 4, characterized in that, The first steel sheet (5) has symmetrically arranged embedding paths of the second steel sheet (6) on both sides of the embedding path of the plate-shaped steel sheet (51). At least one second steel sheet (6) is embedded in each embedding path. The angle between the straight lines where the embedding paths of the two second steel sheets (6) are located is θ, and the range of θ is 10-170°.
6. A tire mold according to claim 5, characterized in that, The two embedding paths of the second steel sheet (6) intersect with the embedding path of the plate-shaped steel sheet (51) of the first steel sheet (5) at point M, where M is located at 1 / 3 to 3 / 4 of the length of the embedding path of the plate-shaped steel sheet (51) of the first steel sheet (5).
7. A tire mold according to claim 6, characterized in that, The embedding path length d of the second steel sheet (6) is 1 / 2 to 3 / 4 times the embedding length L of the plate-shaped steel sheet (51) of the first steel sheet (5).
8. A tire mold according to claim 1, characterized in that, The depth t of the first steel sheet (5) and the second steel sheet (6) embedded in the patterned block (4) is 3-15 mm.