Structure of tire sidewall vent

Abstract

The application discloses a structure of a tire sidewall exhaust hole, which comprises a tire mold, a tire sidewall surface, an exhaust hole sleeve, a plugging mechanism, a side exhaust hole, a guide block, a fixed sheet, a rotating sleeve, a rotating disc and a threaded rod, the tire sidewall surface is in contact with the tire mold, the exhaust hole sleeve is slidably connected in the tire mold, an inner exhaust hole, an outer exhaust hole and a side exhaust hole are formed in the exhaust hole sleeve, the inner exhaust hole, the outer exhaust hole and the side exhaust hole are communicated, the plugging mechanism is arranged in the inner exhaust hole, the fixed sheet is installed on the tire mold through bolts, the rotating sleeve is fixedly connected in the fixed sheet, the rotating disc is rotatably connected in the rotating sleeve, and the rotating disc is connected with the inner exhaust hole of the exhaust hole sleeve through threads. The application relates to the structure of the tire sidewall exhaust hole and has the characteristics of reducing the length of the tire hair and the waste of the rubber material.

Description

Technical Field

[0001] This invention belongs to the field of tire technology, specifically a structure for a tire sidewall vent hole. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. However, in the current vulcanization process, the tire surface is prone to defects due to gas. To prevent this, several venting holes are created on the vulcanization mold. Existing tire sidewall venting holes are typically composed of a 2.0mm diameter through-hole extending to the outer surface of the mold. These venting holes are evenly distributed circumferentially on the outer surface of the tire sidewall and are higher than the tire's outer surface. The purpose of these venting holes is to expel gas from the tire sidewall during vulcanization, preventing tire appearance defects such as insufficient rubber due to gas accumulation.

[0003] With increasingly fierce market competition, improving both the appearance and internal quality of tires while reducing costs is the biggest challenge facing tire manufacturers. While the existing sidewall vent design can address appearance defects such as insufficient rubber on the tire sidewall, the relatively thin rubber layer on the outer surface of the tire sidewall means that the rubber fibers generated by the 2.0mm diameter vent can cause the rubber roots, along with nearby sidewall rubber, to peel off from the tire under excessive vulcanization and delamination stress. Furthermore, because the rubber fibers generated by the 2.0mm diameter sidewall vent are relatively coarse, they need to be removed at the factory for aesthetic and storage reasons, resulting in some rubber waste. Therefore, a new structure for tire sidewall vents needs to be designed. Summary of the Invention

[0004] The purpose of this invention is to provide a structure for a tire sidewall vent hole to solve the above-mentioned problems, thereby resolving the issues mentioned in the background section.

[0005] To address the above problems, the present invention provides a technical solution:

[0006] A structure for a tire sidewall vent includes a tire mold, a tire sidewall surface, a vent sleeve, a sealing mechanism, a side vent, a guide block, a fixing plate, a rotating sleeve, a turntable, and a threaded rod. The tire sidewall surface contacts the tire mold. The vent sleeve is slidably connected inside the tire mold. The vent sleeve has an inner vent, an outer vent, and a side vent, all of which are interconnected. A sealing mechanism is provided inside the inner vent. A fixing plate is bolted to the tire mold. A rotating sleeve is fixedly connected to the fixing plate. A turntable is rotatably connected to the rotating sleeve. A threaded rod is fixedly connected to the turntable. The threaded rod is threadedly connected to the inner vent of the vent sleeve.

[0007] Preferably, a guide block is fixedly connected to the outside of the vent sleeve, and the guide block is slidably connected to the tire mold. The guide block's design provides a guiding function for the vent sleeve.

[0008] Preferably, the turntable has multiple through holes evenly distributed across it. This design prevents the turntable from interfering with exhaust.

[0009] Preferably, a flat knob, made of stainless steel, is fixedly connected to the turntable. The flat knob design facilitates the turntable's rotation.

[0010] Preferably, the turntable is provided with ball bearings that contact the inner surface of the rotating sleeve. This ball bearing design reduces friction between the turntable and the rotating sleeve.

[0011] Preferably, the sealing mechanism includes a plug, a main air passage, a branch passage, a stroke block, a fixing block, a slide rod, a limiting block, and a spring. The plug is slidably connected to the internal exhaust hole. The plug has a main air passage and four evenly distributed branch passages, all of which communicate with the main air passage. A fixing block is fixedly connected to the inner side of the internal exhaust hole. A slide rod is slidably connected inside the fixing block. One end of the slide rod is fixedly connected to the plug, and the other end of the slide rod is fixedly connected to the limiting block, which contacts the fixing block. A spring is provided on the outside of the slide rod. When air inside the tire mold is compressed by the rubber compound, it enters the internal vent through the external vent and pushes the plug in the sealing mechanism. The plug then compresses the spring, and the branch channel on the plug aligns with the side vent. In this way, air will be discharged sequentially through the internal vent, external vent, main air passage, branch channel, and side vent. After the air is discharged, the plug is reset by the spring, causing the branch channel and side vent to reposition themselves. This prevents rubber compound from continuing to leak out, reduces the length of rubber fibers on the tire sidewall, and to some extent reduces rubber waste.

[0012] Preferably, a stroke block is fixedly connected to the outside of the plug, and the stroke block is slidably connected to the vent sleeve. The design of the stroke block allows control of the plug's stroke, ensuring that the flow channel ultimately aligns with the side vent position.

[0013] Preferably, one end of the spring is fixedly connected to the plug, and the other end of the spring is fixedly connected to the fixing block. The spring design assists in the repositioning of the plug.

[0014] The beneficial effects of this invention are as follows: This invention relates to a structure for a tire sidewall vent hole, which reduces tire hair length and rubber waste. In practical use, compared with the prior art, it has the following two beneficial effects:

[0015] First, an vent sleeve is designed and embedded into the inner cavity of the tire mold. The vent sleeve has interconnected internal vent, external vent, and side vent. A sealing mechanism is set in the internal vent. When the air in the tire mold is compressed by the rubber material, it will enter the internal vent through the external vent and push the plug in the sealing mechanism so that the flow channel on the plug is level with the side vent. In this way, the air will be discharged through the internal vent, external vent, main air passage, flow channel, and side vent in sequence. After the air is discharged, the plug is reset by the spring, so that the flow channel and the side vent are repositioned. This prevents the rubber material from continuing to come out, reduces the length of the rubber hairs on the tire sidewall, and reduces the waste of rubber material to a certain extent.

[0016] Secondly, a fixing plate is installed on the outside of the tire mold by bolts. A rotating sleeve is installed inside the fixing plate, and a turntable is installed inside the rotating sleeve. A threaded rod is installed on the turntable. The threaded rod is threadedly connected to the inner vent hole of the vent hole sleeve. In this way, the position of the vent hole sleeve inside the tire mold can be adjusted by the threaded movement of the threaded rod and the inner vent hole, so that the end of the vent hole sleeve is flush with the inner surface of the tire mold, thereby satisfying the installation of the vent hole sleeve at different wall thickness positions inside the tire mold. Attached Figure Description

[0017] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged view of the blocking mechanism;

[0020] Figure 3 For the present invention Figure 1 3D view of the exhaust port sleeve;

[0021] Figure 4 For the present invention Figure 2 A 3D diagram of the plug structure;

[0022] Figure 5 For the present invention Figure 1 Side view of the turntable;

[0023] Figure 6 For the present invention Figure 3 A bottom view.

[0024] In the diagram: 1. Tire mold; 2. Tire sidewall surface; 3. Vent sleeve; 4. Inner vent; 5. Outer vent; 6. Sealing mechanism; 7. Side vent; 8. Guide block; 9. Fixing plate; 10. Rotating sleeve; 11. Turntable; 12. Threaded rod; 13. Through hole; 14. Ball bearing; 15. Flat knob; 61. Plug; 62. Main air passage; 63. Diverter channel; 64. Stroke block; 65. Fixing block; 66. Slide rod; 67. Limiting block; 68. Spring. Detailed Implementation

[0025] like Figure 1-6 As shown, the specific implementation adopts the following technical solution: Example

[0026] A tire sidewall vent structure includes a tire mold 1, a tire sidewall surface 2, a vent sleeve 3, a sealing mechanism 6, a side vent 7, a guide block 8, a fixing plate 9, a rotating sleeve 10, a turntable 11, and a threaded rod 12. The tire sidewall surface 2 is in contact with the tire mold 1. The vent sleeve 3 is slidably connected inside the tire mold 1. The vent sleeve 3 has an inner vent 4, an outer vent 5, and a side vent 7. The inner vent 4 is a uniform and continuous through hole of a certain length and a diameter of 1.2 mm. The outer vent... The depth of 5 is 0.2mm and the diameter is 3.2mm, and it is conical. The inner vent hole 4, the outer vent hole 5 and the side vent hole 7 are all connected. A sealing mechanism 6 is provided in the inner vent hole 4. A fixing plate 9 is installed on the tire mold 1 by bolts. A rotating sleeve 10 is fixedly connected in the fixing plate 9. A turntable 11 is rotatably connected in the rotating sleeve 10. A threaded rod 12 is fixedly connected on the turntable 11. The threaded rod 12 is threadedly connected to the inner vent hole 4 of the vent hole sleeve 3. A portion of the inner vent hole 4 is provided with threads.

[0027] The vent sleeve 3 is externally fixedly connected to a guide block 8, which is slidably connected to the tire mold 1. The guide block 8 is designed to guide the vent sleeve 3.

[0028] The turntable 11 has multiple through holes 13 evenly distributed on it. The through holes 13 are designed to prevent the turntable 11 from interfering with exhaust.

[0029] A flat knob 15, made of stainless steel, is fixedly connected to the turntable 11. The flat knob 15 facilitates the turntable 11.

[0030] The turntable 11 is provided with ball bearings 14, which contact the inner surface of the rotating sleeve 10. The design of the ball bearings 14 can reduce the friction between the turntable 11 and the rotating sleeve 10.

[0031] The sealing mechanism 6 includes a plug 61, a main air passage 62, a diversion passage 63, a stroke block 64, a fixing block 65, a slide rod 66, a limiting block 67, and a spring 68. The plug 61 is slidably connected to the internal exhaust hole 4. The plug 61 has a main air passage 62 and four evenly distributed diversion passages 63, all of which communicate with the main air passage 62. The inner side of the internal exhaust hole 4 is fixedly connected to the fixing block 65. The slide rod 66 is slidably connected inside the fixing block 65. One end of the slide rod 66 is fixedly connected to the plug 61, and the other end of the slide rod 66 is fixedly connected to the limiting block 67, which contacts the fixing block 65. A spring 68 is provided on the outside of the slide rod 66. When the air inside the tire mold 1 is compressed by the rubber material, it enters the inner vent 4 through the outer vent 5 and pushes the plug 61 in the sealing mechanism 6. The plug 61 compresses the spring 68, and then the branch channel 63 on the plug 61 is aligned with the side vent 7. In this way, the air will be discharged through the inner vent 4, outer vent 5, main air passage 62, branch channel 63 and side vent 7 in sequence. After the air is discharged, the plug 61 is reset by the spring 68, so that the branch channel 63 and the side vent 7 are misaligned again. This prevents the rubber material from continuing to emerge, reduces the length of the rubber hairs on the tire sidewall, and reduces the waste of rubber material to a certain extent.

[0032] The plug 61 is externally fixedly connected to a travel block 64, which is slidably connected to the vent sleeve 3. The travel block 64 is designed to control the travel of the plug 61, ensuring that the diversion channel 63 is ultimately flush with the side vent 7.

[0033] One end of the spring 68 is fixedly connected to the plug 61, and the other end of the spring 68 is fixedly connected to the fixing block 65. The spring 68 is designed to assist in the repositioning of the plug 61.

[0034] The usage state of the present invention is as follows: When in use, firstly, the vent sleeve 3 is placed into the inner cavity of the tire mold 1, and the guide block 8 of the vent sleeve 3 is slid into the tire mold 1. Then, the fixing piece 9 is installed on the tire mold 1 with bolts. Subsequently, the turntable 11 is rotated by the flat knob 15. The turntable 11 drives the threaded rod 12 to rotate. The threaded rod 12 moves with the thread of the inner vent hole 4, which can adjust the position of the vent sleeve 3 in the tire mold 1 so that the end of the vent sleeve 3 is flush with the inner surface of the tire mold 1, thereby satisfying the installation of the vent sleeve 3 at different wall thickness positions in the tire mold 1.

[0035] When the air inside the tire mold 1 is compressed by the rubber material, it enters the inner vent 4 through the outer vent 5 and pushes the plug 61 in the sealing mechanism 6. The plug 61 compresses the spring 68, and then the branch channel 63 on the plug 61 is aligned with the side vent 7. In this way, the air will be discharged through the inner vent 4, outer vent 5, main air passage 62, branch channel 63 and side vent 7 in sequence. After the air is discharged, the plug 61 is reset by the spring 68, so that the branch channel 63 and the side vent 7 are misaligned again. This prevents the rubber material from continuing to emerge, reduces the length of the rubber hairs on the tire sidewall, and reduces the waste of rubber material to a certain extent.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A structure of a tire sidewall vent, comprising a tire mold (1), a tire sidewall surface (2), a vent sleeve (3), a blocking mechanism (6), a side vent (7), a guide block (8), a fixing piece (9), a rotating sleeve (10), a rotating disc (11) and a threaded rod (12), characterized in that: The tire sidewall surface (2) is in contact with the tire mold (1), the exhaust hole sleeve (3) is slidably connected in the tire mold (1), the inner exhaust hole (4), the outer exhaust hole (5) and the side exhaust hole (7) are arranged in the exhaust hole sleeve (3), the inner exhaust hole (4), the outer exhaust hole (5) and the side exhaust hole (7) are communicated, the inner exhaust hole (4) is provided with a plugging mechanism (6), the fixing plate (9) is installed on the tire mold (1) through bolts, the rotating sleeve (10) is fixedly connected in the fixing plate (9), the rotating disc (11) is rotatably connected in the rotating sleeve (10), the threaded rod (12) is fixedly connected on the rotating disc (11), and the threaded rod (12) is connected with the inner exhaust hole (4) of the exhaust hole sleeve (3) through threads. The plugging mechanism (6) comprises a plug (61), a main air duct (62), a shunt (63), a stroke block (64), a fixed block (65), a sliding rod (66), a limiting block (67) and a spring (68), the plug (61) is slidably connected with the inner exhaust hole (4), the plug (61) is provided with a main air duct (62), the plug (61) is provided with four evenly distributed shunts (63), the four shunts (63) are communicated with the main air duct (62), the inner side of the inner exhaust hole (4) is fixedly connected with the fixed block (65), the sliding rod (66) is slidably connected in the fixed block (65), one end of the sliding rod (66) is fixedly connected with the plug (61), the other end of the sliding rod (66) is fixedly connected with the limiting block (67), the limiting block (67) is in contact with the fixed block (65), and the spring (68) is arranged outside the sliding rod (66).

2. A structure of a tire sidewall air vent according to claim 1, characterized by: The outer side of the exhaust hole sleeve (3) is fixedly connected with a guide block (8), and the guide block (8) is slidably connected with the tire mold (1).

3. The structure of a tire sidewall air vent according to claim 1, wherein: A plurality of through holes (13) are arranged on the rotating disc (11).

4. The structure of a tire sidewall air vent according to claim 1, wherein: The rotating disc (11) is fixedly connected with a flat-shaped rotating knob (15), and the flat-shaped rotating knob (15) is made of stainless steel.

5. The structure of a tire sidewall air vent according to claim 1, wherein: The rotating disc (11) is provided with a ball (14), and the ball (14) is in contact with the inner surface of the rotating sleeve (10).

6. The structure of a tire sidewall air vent according to claim 4, wherein: The outer side of the plug (61) is fixedly connected with a stroke block (64), and the stroke block (64) is slidably connected with the exhaust hole sleeve (3).

7. A structure of a tire sidewall air vent according to claim 6, characterized by: One end of the spring (68) is fixedly connected with the plug (61), and the other end of the spring (68) is fixedly connected with the fixed block (65).

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