Tire inner cavity polisher for tire production
By introducing an air circulation system into the tire inner cavity grinding machine, the problem of high-temperature damage to the equipment has been solved, achieving high efficiency for continuous operation and durability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CHAOYING TIRE CO LTD
- Filing Date
- 2025-09-06
- Publication Date
- 2026-07-28
AI Technical Summary
Existing tire internal grinding machines used in tire production generate high temperatures after prolonged operation, leading to equipment damage and requiring shutdown for cooling, which reduces work efficiency.
A tire cavity grinding machine was designed. By setting a fixed rod, a transverse connecting beam, a connecting rod, a movable sleeve, and a fan blade on the outer shell of the grinding machine, air circulation is used to cool down the machine and achieve internal air exchange, thereby reducing the temperature of the equipment.
During the operation of the grinding machine, air circulation is used to cool it down, preventing damage from high temperatures and improving work efficiency and the service life of the equipment.
Smart Images

Figure CN224560707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire production technology, specifically a tire inner cavity grinding machine for tire production. Background Technology
[0002] Tires are circular, elastic rubber products that roll and come into contact with the ground, mounted on various vehicles or machinery. They are typically installed on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. As the only component of a car in contact with the ground, tire performance directly affects the safety of drivers and passengers; the importance of tire performance is self-evident. Therefore, various countries have established clear requirements for tire safety performance. With the rapid development of the automotive industry, consumers, in addition to focusing on tire safety, have begun to pay attention to overall vehicle comfort, handling stability, NVH (noise, vibration, and harshness) performance. Tubeless tires are similar in appearance and structure to tubed tires, but they lack an inner tube and liner; air is directly forced into the outer tire, and its sealing is ensured by the outer tire and rim. Tubeless tires have a 2-3mm thick rubber sealing layer on the inner wall specifically for sealing air; some also have a self-adhesive layer made of a special mixture attached underneath this layer. When the tire is punctured, the self-adhesive layer can automatically seal the puncture; therefore, this type of tire is also called a tubeless tire with a self-adhesive layer. There is also a rubber sealing layer on the outside of the tire bead to increase the airtightness between the tire bead and the rim. The bottom of the rim is sloping and coated with a uniform layer of paint. The valve stem is directly fixed to one side of the rim, with a rubber sealing gasket between them, and tightened with a nut. The rivets that rivet the rim and spokes are inserted from the inside and coated with a layer of rubber. The advantages of tubeless tires are: they only fail in the event of a burst, and when punctured, air leakage is slow, and the tire pressure does not drop sharply, allowing continued driving; at the same time, because there is no tube, there is less frictional heat generation and faster heat dissipation, making them suitable for high-speed driving; in addition, they have a simple structure and are relatively lightweight.
[0003] The rigid part used to secure the tire to the rim without stretching is called the bead. The bead firmly fixes the tire to the rim and resists forces that could cause it to detach during vehicle operation. To ensure the bead is stably shaped and forms a rigid transition from the bead to the sidewall, the triangular rubber filling material has high hardness and is non-vulcanizable, therefore the bead is irreparable. The rubber covering layer attached to the sidewall of the tire carcass, used to protect the tire from mechanical damage and other external forces (such as mud and water), is called the sidewall. Unlike the tread, the sidewall does not bear significant stress, does not contact the ground, and is therefore not subject to wear. The sidewall primarily operates under flexed conditions, so its thickness can be slightly thinner. However, it must withstand significant mechanical deformation and is prone to cracking under ozone conditions. Therefore, the sidewall should have low tensile strength and excellent fatigue and ozone resistance. The sidewall is the most prone to tire blowouts. Main causes: ① Insufficient tire pressure. Radial tires must be kept at the standard tire pressure after installation. Underinflation will cause excessive bending of the steel wires on the sidewall, loosening the steel wire structure. When reinflated, the reduced pressure resistance will lead to a tire blowout. ② Overloading. The tire shoulder, located between the tread and the sidewall, is the thickest part of the tire structure. It is also the part of the tire that experiences the highest temperature during vehicle operation, making it prone to rubber cracking. Such damage should be inspected and repaired promptly to prevent water seepage and rusting of the internal steel wires. The tire tread is in direct contact with the road surface. Therefore, it must have good wear resistance, low rolling resistance and noise, and excellent heat and puncture resistance. Furthermore, the tread bears a significant load, especially on rough roads, so it must also have good elasticity, fatigue resistance, and high aging resistance.
[0004] The disadvantages of tubeless tires are: the sealing layer and self-adhesive layer are prone to air leakage, and repairs are more difficult on the road. Furthermore, the self-adhesive layer can only adhere when the puncture size is small. In hot weather, the self-adhesive layer may soften and flow downwards, disrupting wheel balance. Therefore, tubeless tires generally use a layer without a self-adhesive layer. Its outer wall has only one sealing layer. When the tire is punctured, the sealing layer, being compressed, tightly wraps around the puncture, thus preventing air leakage for a long time. Even after the puncture is removed, it can temporarily maintain tire pressure. Tubeless tires are generally used with deep rims and are more commonly used on passenger cars.
[0005] After tire production, the inner wall may have bumps and burrs. In this case, an inner cavity grinding machine is needed to perform local treatment to ensure the quality of the tire after production. Existing tire inner cavity grinding machines used in tire production will generate high temperatures during long-term operation. At this time, they must be stopped to prevent damage to the grinding machine, which will reduce work efficiency. Utility Model Content
[0006] The purpose of this invention is to provide a tire inner cavity grinding machine for tire production, which solves the problem that existing tire inner cavity grinding machines used in tire production generate high temperatures during long-term operation, at which point they must be stopped to prevent damage to the grinding machine, thus reducing work efficiency.
[0007] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a tire inner cavity grinding machine for tire production, comprising an outer shell of the grinding machine, a mounting rod fixedly connected to the inner right side of the outer shell, a motor fixedly connected to the left end of the mounting rod, a control module fixedly mounted on the front of the motor, a wire connected to the right side of the control module, a switch fixedly mounted on the right side of the outer shell, the end of the wire away from the control module connected to the left side of the switch, a transmission frame fixedly connected to the output end of the motor, a grinding head fixedly mounted on the left end of the transmission frame, a fixing rod fixedly connected to the output end of the motor, and a transverse connecting beam fixedly connected to the end of the fixing rod, the surface of the transverse connecting beam being fixedly... A connecting rod is fixedly connected to the mounting rod, and a movable sleeve is fitted onto the surface of the mounting rod. The end of the connecting rod is fixedly connected to the surface of the movable sleeve, and a fan blade is fixedly connected to the surface of the movable sleeve. An air inlet and exchange hole communicating with the interior of the outer casing of the grinder is opened on the right side, and a heat dissipation hole communicating with the interior of the outer casing of the grinder is opened on the lower surface. During the grinding operation, the rotation of the motor output end will drive the movable sleeve to rotate on the surface of the mounting rod through the fixed rod, the transverse connecting beam, and the connecting rod. The movable sleeve will drive the fan blade to blow air to the left. During this process, external air will be drawn into the interior of the outer casing of the grinder through the air inlet and exchange hole, while high-temperature air will be discharged out through the heat dissipation hole, forming air circulation and cooling.
[0008] Furthermore, the wiring of the conductor is located inside the mounting rod.
[0009] Furthermore, a handle is fixedly connected to the upper surface of the outer casing of the grinder.
[0010] Furthermore, there are two air intake holes, which are symmetrically arranged about the central axis of the outer casing of the grinder.
[0011] Furthermore, the movable sleeve can move on the surface of the mounting rod.
[0012] Furthermore, the interior of the mounting rod has a hollow design.
[0013] This utility model provides a tire inner cavity grinding machine for tire production. It has the following beneficial effects: This tire internal cavity grinding machine for tire production, through the combination of fixed rods, heat dissipation holes, transverse connecting beams, connecting rods, movable sleeves, fan blades, and air inlet exchange holes, achieves simultaneous internal and external air circulation and exchange during the grinding machine's operation. This reduces the grinding machine's operating temperature and solves the problem that existing tire internal cavity grinding machines used in tire production generate high temperatures during prolonged operation, requiring them to be stopped to prevent damage and reduce work efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the structure of this utility model.
[0015] The components include: 1. outer casing of the grinder; 2. transmission frame; 3. grinding head; 4. mounting rod; 5. motor; 6. control module; 7. wires; 8. switch; 9. fixing rod; 10. heat dissipation hole; 11. transverse connecting beam; 12. connecting rod; 13. movable sleeve; 14. fan blade; 15. air inlet; and 16. handle. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.
[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] like Figure 1-2 As shown, this utility model embodiment provides a tire inner cavity grinding machine for tire production, including a grinding machine outer shell 1, and a handle 16 is fixedly connected to the upper surface of the grinding machine outer shell 1.
[0021] In the first embodiment of this utility model, a mounting rod 4 is fixedly connected to the inner right side of the outer shell 1 of the grinder. The interior of the mounting rod 4 is hollowed out. A motor 5 is fixedly connected to the left end of the mounting rod 4. A control module 6 is fixedly installed on the front of the motor 5. A wire 7 is connected to the right side of the control module 6. The wire 7 is routed inside the mounting rod 4. A switch 8 is fixedly installed on the right side of the outer shell 1 of the grinder. The end of the wire 7 away from the control module 6 is connected to the left side of the switch 8. A transmission frame 2 is fixedly connected to the output end of the motor 5. A grinding head 3 is fixedly installed on the left end of the transmission frame 2.
[0022] In the second embodiment of this utility model, a fixed rod 9 is fixedly connected to the output end of the motor 5, and a transverse connecting beam 11 is fixedly connected to the end of the fixed rod 9. A connecting rod 12 is fixedly connected to the surface of the transverse connecting beam 11. A movable sleeve 13 is sleeved on the surface of the mounting rod 4, and the movable sleeve 13 can move on the surface of the mounting rod 4. The end of the connecting rod 12 is fixedly connected to the surface of the movable sleeve 13. A fan blade 14 is fixedly connected to the surface of the movable sleeve 13. An air inlet exchange hole 15 communicating with the inside of the outer shell 1 of the grinder is opened on the right side. There are two air inlet exchange holes 15, which are symmetrically arranged about the central axis of the outer shell 1 of the grinder. A heat dissipation hole 10 communicating with the inside of the outer shell 1 of the grinder is opened on the lower surface of the outer shell 1 of the grinder.
[0023] Working principle: During the grinding process, the output end of the motor 5 rotates and drives the movable sleeve 13 to rotate on the surface of the mounting rod 4 via the fixed rod 9, the transverse connecting beam 11 and the connecting rod 12. The movable sleeve 13 drives the fan blade 14 to blow air to the left. During this process, the external air is drawn into the interior of the outer shell 1 of the grinder through the air inlet exchange hole 15, while the high temperature air is discharged to the outside through the heat dissipation hole 10, forming air circulation and cooling.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tire inner cavity grinding machine for tire production, comprising an outer housing (1) of the grinding machine, characterized in that: A mounting rod (4) is fixedly connected to the inner right side of the outer casing (1) of the grinder. A motor (5) is fixedly connected to the left end of the mounting rod (4). A control module (6) is fixedly installed on the front of the motor (5). A wire (7) is connected to the right side of the control module (6). A switch (8) is fixedly installed on the right side of the outer casing (1) of the grinder. The end of the wire (7) away from the control module (6) is connected to the left side of the switch (8). A transmission frame (2) is fixedly connected to the output end of the motor (5). A grinding head (3) is fixedly installed on the left end of the transmission frame (2). A fixing rod (3) is fixedly connected to the output end of the motor (5). 9), the end of the fixed rod (9) is fixedly connected to the transverse connecting beam (11), the surface of the transverse connecting beam (11) is fixedly connected to the connecting rod (12), the surface of the mounting rod (4) is sleeved with the movable sleeve (13), the end of the connecting rod (12) is fixedly connected to the surface of the movable sleeve (13), the surface of the movable sleeve (13) is fixedly connected to the fan blade (14), the right side of the outer shell (1) of the grinder is provided with an air exchange hole (15) that communicates with the inside of the outer shell (1) of the grinder, and the lower surface of the outer shell (1) of the grinder is provided with a heat dissipation hole (10) that communicates with the inside of the outer shell (1) of the grinder.
2. The tire inner cavity grinding machine for tire production according to claim 1, characterized in that: The wiring of the conductor (7) is located inside the mounting rod (4).
3. The tire inner cavity grinding machine for tire production according to claim 1, characterized in that: A handle (16) is fixedly connected to the upper surface of the outer casing (1) of the grinder.
4. A tire inner cavity grinding machine for tire production according to claim 1, characterized in that: The number of air inlet exchange holes (15) is two, and the two air inlet exchange holes (15) are symmetrically arranged about the central axis of the outer casing (1) of the grinder.
5. A tire inner cavity grinding machine for tire production according to claim 1, characterized in that: The movable sleeve (13) is movable on the surface of the mounting rod (4).
6. A tire inner cavity grinding machine for tire production according to claim 1, characterized in that: The interior of the mounting rod (4) is hollowed out.