A production mold for assembling a tire to a rim and a tire

Abstract

The application relates to the technical field of automobile tires, and particularly discloses a production mold for closely assembling a tire with a rim and the tire, wherein the production mold for closely assembling a tire with a rim comprises a tire vulcanization mold body, exhaust holes with different heights are arranged on the tire vulcanization mold body near a rim, and corresponding sealing members or air hole sleeves are detachably arranged in the exhaust holes; when the tire is vulcanized, the air hole sleeves are installed in the corresponding exhaust holes according to the shape of the rim, and the remaining exhaust holes are sealed by the sealing members. According to the application, the tire produced by the production mold can avoid the rim when being assembled with the rim, the rubber hair can be avoided to be clamped by the rim when the tire is assembled, the tire and the rim are not closely attached, a gap is left between the tire and the rim, and the assembled tire is prone to air leakage after being inflated.

Description

Technical Field

[0001] The present invention relates to the field of automobile tires, in particular to a tire production mold tightly assembled with a rim and a tire produced by the production mold. Background Art

[0002] During tire production, the presence of gas between the mold and the tire can block the flow of rubber, resulting in incomplete vulcanization and rubber gaps on the vulcanized tire. Processing vent holes in the mold to allow gas to escape during tire vulcanization can effectively alleviate this problem. During tire production, some rubber escapes through the vent holes embedded in the mold, forming a cylindrical rubber hair. This hair can easily get caught in the rim during assembly, causing a loose fit and leaving a gap between the tire and rim. This can lead to air leaks after the assembled tire is inflated. Summary of the Invention

[0003] The present invention aims to provide a tire production mold, which can solve the problem that tire hair is clamped between the tire and the rim during assembly, resulting in air leakage after the tire is inflated.

[0004] To this end, an embodiment of the first aspect of the present invention provides a production mold capable of producing a tire that fits tightly with the rim. The tire produced by the mold fits tightly with the rim, and the rubber hair will not affect the fit.

[0005] Another embodiment of the present invention further provides a tire, wherein the rubber bristles are designed and produced according to the shape of the rim and will not affect the fit between the tire and the rim.

[0006] A production mold for a tire tightly assembled with a rim according to an embodiment of the first aspect of the present invention comprises:

[0007] A tire vulcanization mold body, wherein the tire vulcanization mold body is provided with exhaust holes at different heights near the wheel rim, and corresponding air hole sleeves are detachably provided in the exhaust holes;

[0008] When the tire is vulcanized, a specific pore sleeve is selected according to the shape of the rim, and the remaining pore sleeves are sealed by sealing elements.

[0009] According to the pneumatic tire of the embodiment of the present invention, by providing a plurality of optional exhaust holes, and installing air hole sleeves in the exhaust holes according to the size and shape of the rim, the required air hole sleeves are selected, and the remaining air hole sleeves are sealed with sealants. The rubber hair of the produced tire can avoid the rim during installation, avoiding the rubber hair affecting the assembly of the tire and the rim, resulting in the rubber hair being clamped during rim assembly, thereby causing the pneumatic tire to leak.

[0010] In some embodiments, the center height H1 of the vent hole is the vertical distance from the bottom of the tire bead to the center of the vent hole at the rim protection or waterproof line, and is 15mm to 30mm. The inclination angle is W D The value ranges from 1° to 90°.

[0011] In some embodiments, the length W of the pore sleeve L The value ranges from 5mm to 30mm.

[0012] In some embodiments, the outer shape of the pore sleeve corresponds to the inner wall of the exhaust hole, and the interior thereof is a cylindrical hole or a conical hole for forming rubber hairs of different shapes.

[0013] In some embodiments, the outer diameter of the end of the pore sleeve close to the tire is W R1 , the outer diameter of the opposite end is W R2 , the inner diameter W of the pore sleeve R3 ; and W R1 ≥W R2 The inner diameter W of the pore sleeve R3 As mentioned W R1 and the W R1 The size ratio changes proportionally.

[0014] In some embodiments, the outer diameter W of the pore sleeve is R1 The value is 0.12W L ~0.18W L .

[0015] In some embodiments, the outer diameter W of the pore sleeve is R2 The value is 0.1W L ~0.18W L .

[0016] In some embodiments, the exhaust holes are arranged in a circumferential array along the rim, and multiple groups are provided at intervals along the direction of H1.

[0017] In some embodiments, the pore sleeve and the sealing component are made of stainless steel, and the pore sleeve and the sealing component are fixedly embedded in the exhaust hole through interference fit.

[0018] A tire according to an embodiment of the second aspect of the present invention is produced by the above-mentioned tire production mold.

[0019] According to the tire of the embodiment of the present invention, when it is assembled with the rim, the rubber hairs thereof can avoid the rim, thereby preventing the rim from clamping the rubber hairs when the tire is assembled, thereby causing the tire to fit poorly with the rim, leaving a gap between the tire and the rim, and causing air leakage after the assembled tire is inflated.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure. Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the partial structure of a production mold according to an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of the assembly state of the tire and rim produced by the tire production mold in the embodiment of the invention Figure One .

[0024] Figure 3 Schematic diagram of the assembly state of the tire and rim produced by the tire production mold in the embodiment of the invention Figure Two .

[0025] Figure 4 Schematic diagram of the tire and rim assembly state in the prior art Figure One .

[0026] Figure 5 Schematic diagram of the tire and rim assembly state in the prior art Figure Two .

[0027] Reference numerals:

[0028] 1. Tire vulcanization mold body; 2. Exhaust hole; 3. Seal; 4. Hole cover; 5. Rubber wool; 6. Rim. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 4 and Figure 5As described in the background art, during tire production, a portion of the rubber will flow out through the exhaust hole embedded in the mold, thereby forming a cylindrical rubber hair. For the assembly portion of the tire and the rim, the rim is likely to clamp the rubber hair when assembling the tire, resulting in an incomplete fit between the tire and the rim, leaving a gap between the tire and the rim, resulting in air leakage after the assembled tire is inflated.

[0031] In order to improve the above problems, the present application proposes a production mold for tires that are tightly assembled with the rim. The structure of the existing tire production mold is improved, multiple sets of exhaust grooves are added, and they are selected and used according to the shape of the rim in actual production. Then, rubber hairs of specific sizes are produced according to specific exhaust holes, which avoids the problem of rubber hairs being clamped between the rim and the tire during assembly.

[0032] Reference below Figure 1 The embodiments in this application are described.

[0033] Reference Figure 1 According to an embodiment of the present application, a tire production mold that is tightly assembled with a rim 6 includes: a tire vulcanization mold body 1, wherein the tire vulcanization mold body 1 is provided with exhaust holes 2 at different heights near the rim, and an air hole sleeve 4 is detachably provided in the exhaust hole 2;

[0034] When the tire is vulcanized, a specific pore sleeve 4 is selected according to the shape of the rim 6 , and the remaining pore sleeves 4 are sealed by the sealing member 3 .

[0035] It should be understood that the advantage of the solution is that it is based on the shape and size of the existing rim 6. A suitable exhaust hole 2 is selected according to its shape and size, and the air hole sleeve 4 is inserted, so that the rubber hair 5 of the tire is formed at the designed position, and the size and shape are adapted to the shape and size of the rim 6. During the assembly process of the tire and the rim 6, there is no interference with each other, and the tire and the rim 6 will not clamp the rubber hair 5 when the rim 6 is assembled, causing the inflated tire to leak.

[0036] In some specific embodiments, the center height H1 of the vent hole 2 is the vertical distance from the bottom of the tire bead to the center of the vent sleeve 4 at the rim 6 protection or waterproof line, and is 15mm to 30mm. The inclination angle is W D The value ranges from 1° to 90°.

[0037] In order to further optimize the above technical solution, the center height H1 of the vent hole 2 is the vertical distance from the bottom of the tire bead to the center of the vent sleeve 4 at the rim 6 protection or waterproof line, which is 20mm to 25mm, and its inclination angle is W D The value range is 30°~80°

[0038] Through the above technical solution, the present invention can provide a variety of design positions, and the rubber bristles 5 of the produced tire can be matched with rims 6 of different shapes and sizes to avoid mutual interference.

[0039] In some specific embodiments, the length W of the pore sleeve 4 is L The value ranges from 5mm to 30mm.

[0040] In order to further optimize the above technical solution, the length W of the pore sleeve 4 L The value ranges from 10mm to 25mm.

[0041] In some embodiments, the outer shape of the pore sleeve 4 corresponds to the inner wall of the exhaust hole 2, and the interior thereof is a cylindrical hole or a conical hole for forming rubber hairs 5 of different shapes.

[0042] It should be noted that the shape and structure of the rubber hair 5 can affect its own strength, which involves whether the rubber hair 5 is intact or broken when the tire is successfully removed after the tire is produced. If the rubber hair 5 is broken, it will block the air hole sleeve 4, which needs to be cleaned later, reducing production efficiency.

[0043] In order to further optimize the above technical solution, the outer diameter of the end of the pore sleeve 4 close to the tire is W R1 , the outer diameter of the opposite end is W R2 , the inner diameter W of the pore sleeve 4 R3 ; and W R1 ≥W R2 The inner diameter W of the pore sleeve 4 R3 As mentioned W R1 and the W R1 The size ratio changes proportionally.

[0044] In order to further optimize the above technical solution, the outer diameter W of the pore sleeve 4 R1 The value is 0.12W L ~0.18W L .

[0045] In some embodiments, the outer diameter W of the pore sleeve 4 is R2 The value is 0.1W L ~0.18W L .

[0046] In order to further optimize the above technical solution, the exhaust holes 2 are arranged in a circular array along the rim, and multiple groups are provided at intervals along the direction of H1.

[0047] In some embodiments, the pore sleeve 4 and the sealing member 3 are made of stainless steel, and the pore sleeve 4 and the sealing member 3 are fixedly embedded in the exhaust hole 2 by interference fit.

[0048] Through the above technical solution, the air hole sleeve 4 and the sealing member 3 can be tightly connected with the air hole 2, and can be disassembled and maintained later, thereby reducing maintenance costs.

[0049] Reference Figure 2 and Figure 3 According to a tire of an embodiment of the present application, it is produced by any of the tire production molds mentioned above, and its rubber hair 5 is selected and produced according to the shape and size of the rim 6.

[0050] It should be understood that, because the tire is produced by the tire production mold in the above technical solution, the tire and the rim 6 are prevented from clamping the rubber hair 5 when assembling the tire, so that the tire and the rim 6 do not fit tightly, and a gap is left between the tire and the rim 6, resulting in air leakage after the assembled tire is inflated.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 understood as limiting the present invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A production mold for a tire that is tightly assembled with a rim, characterized in that: include: A tire vulcanization mold body, wherein the tire vulcanization mold body is provided with exhaust holes at different heights near the wheel rim, and corresponding air hole sleeves are detachably provided in the exhaust holes; When the tire is vulcanized, a specific pore sleeve is selected according to the shape of the rim, and the remaining pore sleeves are sealed by sealing elements.

2. The tire production mold for tightly fitting a rim according to claim 1, characterized in that: The center height H1 of the vent hole is the vertical distance from the bottom of the tire bead to the center of the vent hole at the rim protection or waterproof line, and is 15mm to 30mm. Its inclination angle is W. D The value ranges from 1° to 90°.

3. The tire production mold for tightly fitting with the rim according to claim 2, characterized in that: The length W of the pore sleeve L The value ranges from 5mm to 30mm.

4. The tire production mold for tightly fitting a rim according to claim 1, characterized in that: The outer shape of the air hole sleeve corresponds to the inner wall of the air hole, and the interior thereof is a cylindrical hole or a conical hole for forming rubber hairs of different shapes.

5. The tire production mold for tightly fitting with the rim according to claim 4, characterized in that: The outer diameter of the end of the air hole sleeve close to the tire is W R1 , the outer diameter of the opposite end is W R2 , the inner diameter W of the pore sleeve R3 ; and W R1 ≥W R2 The inner diameter W of the pore sleeve R3 As mentioned W R1 and the W R1 The size ratio changes proportionally.

6. The tire production mold for tightly fitting with the rim according to claim 5, characterized in that: The outer diameter W of the pore sleeve R1 The value is 0.12W L ~0.18W L .

7. The tire production mold for tightly fitting with the rim according to claim 6, characterized in that: The outer diameter W of the pore sleeve R2 The value is 0.1W L ~0.18W L .

8. The tire production mold for tightly fitting with the rim according to claim 2, characterized in that: The exhaust holes are arranged in a circumferential array along the rim, and multiple groups are provided at intervals along the direction of H1.

9. The tire production mold for tightly fitting with the rim according to claim 8, characterized in that: The pore sleeve and the sealing component are made of stainless steel, and are fixedly embedded in the exhaust hole through interference fit.

10. A tire, characterized in that: Produced from the tire production mold according to any one of claims 1 to 9.

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