Automobile tire air tight layer uniform coating process device

Abstract

The utility model relates to tire production and manufacturing equipment technical field discloses automobile tire air -tight layer even coating process device, including box, shift case, fixed establishment and spraying mechanism, the middle part of box outer wall rotatory connection has the rotary disc, the rotary disc is fixedly connected bottom piece through the connecting strip, and the fixed establishment is arranged in the bottom piece slot hole, and the motor of fixed establishment one connects the traction disc, and the traction arm is rotatably connected through the connecting block traction disc, and the traction arm cooperation auxiliary arm drives the clamping block to move along the radial to fix the tire, and the spraying mechanism sets up in the shift case top wall, and the motor of spraying mechanism two connects the adjusting block, and the adjusting block is rotatably connected the moving link through the arm drive link. The utility model discloses through the fixed establishment of connecting rod linkage to realize the self -adaptation firm clamping of different specifications tire, and the spraying mechanism drive spray pipe is driven to carry out axial scanning with the cooperation crank slider type, has solved the problem of the instability of clamping and uneven spraying in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing equipment technology, and in particular to a process device for uniformly coating the airtight layer of automobile tires. Background Technology

[0002] The airtight layer of a car tire is a key structure for maintaining tire pressure. During the tire manufacturing process, the inner wall of the tire needs to be coated with the airtight layer rubber. The existing coating operation relies on automated equipment. The automated equipment fixes the tire with a clamping mechanism and drives the tire to rotate, while using a coating mechanism to coat the inner wall of the tire.

[0003] Existing tire coating equipment suffers from structural defects in practical use. The existing tire fixing mechanism uses a fixed-size chuck or a simple bolt clamping method. The rigid connection cannot be adaptively adjusted according to the specific diameter of the tire, which requires stopping the machine to change the fixture when changing to different tire specifications. This seriously reduces the continuous operation efficiency of the production line. Furthermore, the lack of a self-locking structure causes the tire to loosen and shift under centrifugal force during high-speed rotation, directly affecting the stability of the spraying operation. On the other hand, the existing spraying mechanism uses a fixed-position nozzle design. The nozzle can only spray a single circumferential trajectory on the inner wall of the tire, which cannot cover the entire area of ​​the inner wall of the tire. This results in uneven coating thickness and missed spraying, ultimately causing the tire to fail the air tightness test.

[0004] Therefore, this utility model proposes a process device for uniformly coating the airtight layer of automobile tires to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the defects in the existing tire coating equipment, such as the rigid connection of the fixing mechanism which cannot adapt to tires of different diameters, resulting in poor production versatility, the lack of a self-locking structure which leads to low gripping stability during high-speed rotation, and the fixed position of the spraying mechanism which limits the coating coverage and causes uneven coating thickness, thus affecting the airtightness quality of the product, this utility model aims to provide a uniform coating process device for the airtight layer of automobile tires with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a uniform coating process device for the airtight layer of automobile tires, comprising: a housing, a shifting box, a fixing mechanism disposed on the housing, and a spraying mechanism disposed on the shifting box. The outer wall of the housing is rotatably connected to a rotating disk. A connecting strip is fixedly connected to the left side of the outer wall of the rotating disk, and the connecting strip is fixedly connected to the rear side of the outer wall of the substrate. The fixing mechanism includes a slot formed in the inner wall of the substrate. A motor is fixedly connected to the inner wall of the slot. A traction disk is fixedly connected to the output shaft of the motor. A connecting block is rotatably connected to the front side of the outer wall of the traction disk. A traction arm is rotatably connected to the end of the connecting block. The middle of the rear side of the traction arm is rotatably connected to the front side of the outer wall of the substrate. A clamping block is rotatably connected to the front end of the rear side of the traction arm. A clamping block is rotatably connected to the front end of the outer wall of the clamping block. An auxiliary arm is rotatably connected at one end away from the clamping block to the front side of the outer wall of the substrate. The spraying mechanism includes a mounting plate fixedly connected to the top wall of the shifting box. A second motor is fixedly connected to the rear side of the outer wall of the mounting plate. An adjusting block is fixedly connected to the output shaft of the second motor. A traction arm is rotatably connected to the front side of the outer wall of the adjusting block. A moving rod is rotatably connected to the end of the traction arm away from the adjusting block. The outer wall of the moving rod is slidably connected to the inner wall of the limiting block. The limiting block is fixedly connected to the upper front side of the outer wall of the mounting plate. A fixing ring is fixedly connected to the right side of the outer wall of the moving rod. A spray pipe is fixedly connected to the inner wall of the fixing ring.

[0007] Preferably, a rotary bearing is provided between the rotating disk and the housing, and the connecting strip is fixed to the rotating disk and the bottom plate by welding. The rotary bearing can reduce the frictional resistance when the rotating disk rotates and improve the rotational stability, while the welding method can ensure the stability of the connecting strip connection and prevent loosening during high-speed rotation.

[0008] Preferably, the surface of the traction disc is provided with an eccentric shaft hole, and the connecting block is rotatably connected to the traction disc by a pin passing through the eccentric shaft hole. Through the eccentric connection design, the rotational motion of the traction disc can be effectively converted into the reciprocating pushing and pulling motion of the connecting block, thereby providing a power basis for the opening and closing of the fixing mechanism.

[0009] Preferably, the connection point between the auxiliary arm and the base plate and the connection point between the traction arm and the base plate are located on the same horizontal straight line, and the length of the auxiliary arm is equal to the length of the traction arm between the connection point with the base plate and the connection point with the clamping block. This parallelogram or near-parallelogram linkage layout can ensure that the clamping block maintains a stable posture during movement and ensures uniform contact area and clamping force on the inner wall of the tire.

[0010] Preferably, the clamping block has an arc-shaped contact surface on the side facing the center of the rotating disk, and the arc-shaped contact surface is provided with anti-slip patterns. The arc-shaped contact surface can better fit the circular inner wall of the tire, increase the contact area, and the anti-slip patterns can significantly increase the coefficient of friction, preventing the tire from sliding relative to the center during processing.

[0011] Preferably, the adjusting block is a disc structure, and the traction arm is rotatably connected to the edge of the adjusting block to form a crank-slider drive structure. Utilizing the crank-slider principle, the continuous rotation of the second motor can be smoothly converted into the reciprocating swing of the traction arm, thereby driving the subsequent components to perform linear reciprocating motion.

[0012] Preferably, the center of the limiting block has a guide hole in the horizontal direction, the moving rod passes through the guide hole, and the outer diameter of the moving rod is clearance-fitted with the inner diameter of the guide hole. The guide hole plays a precise limiting role, constraining the moving rod to move only along the axial direction, eliminating lateral swaying, and ensuring the straightness and stability of the spraying trajectory.

[0013] Preferably, the side wall of the fixing ring is provided with a threaded hole, and the fixing ring is fixed to the end of the moving rod by a fastening screw screwed into the threaded hole. This detachable connection method facilitates disassembly and assembly during maintenance or replacement of the nozzle, improving the maintenance convenience of the equipment.

[0014] Preferably, the end of the nozzle is provided with an atomizing nozzle, and the spraying direction of the atomizing nozzle is perpendicular to the axis of the moving rod and toward the central axis of the fixing mechanism. The atomizing nozzle can break the paint into tiny particles, and with the spraying angle pointing vertically to the center, it ensures that the paint can be evenly and delicately adhered to the surface of the tire airtight layer, thereby improving the coating quality.

[0015] This utility model has the following beneficial effects: 1. This utility model solves the problem that the existing tire fixing device is difficult to adapt to tires of different sizes and has unstable gripping by setting a linkage fixing mechanism driven by a motor on the rotating disk and using the coordinated action of the traction disk, connecting block and traction arm and auxiliary arm to control the opening and closing of the clamping block. It achieves the effect of automatically adapting to multiple tire specifications and ensuring firm gripping during high-speed rotation processing, preventing tires from falling off and improving processing safety.

[0016] 2. This utility model, by setting a reciprocating spraying mechanism, uses a crank-slider structure to convert the rotational motion of the drive motor into the axial reciprocating linear motion of the spray nozzle, and in conjunction with the high-speed rotation of the tire, solves the problems of limited paint coverage and uneven coating thickness in the existing fixed spray head. It achieves the effects of full-coverage scanning spraying, significantly improving the uniformity of airtight layer coating, reducing paint loss and improving product quality. Attached Figure Description

[0017] Figure 1 This is a perspective view of the uniform coating process device for the airtight layer of automobile tires proposed in this utility model. Figure 2This is a front view of the uniform coating process device for the airtight layer of automobile tires proposed in this utility model; Figure 3 This is a side view of the uniform coating process apparatus for the airtight layer of automobile tires proposed in this utility model; Figure 4 A perspective view of the fixing mechanism of the uniform coating process device for the airtight layer of automobile tires proposed in this utility model; Figure 5 This is a split view of the fixing mechanism of the uniform coating process device for the airtight layer of automobile tires proposed in this utility model. Figure 6 This is a perspective view of the spraying mechanism of the uniform coating process device for the airtight layer of automobile tires proposed in this utility model.

[0018] Legend: 1. Box body; 2. Fixing mechanism; 201. Motor 1; 202. Traction disc; 203. Connecting block; 204. Auxiliary arm; 205. Traction arm; 206. Clamping block; 207. Slot; 208. Base plate; 209. Rotating disc; 210. Connecting strip; 3. Spraying mechanism; 301. Motor 2; 302. Adjusting block; 303. Traction arm; 304. Moving rod; 305. Limiting block; 306. Fixing ring; 307. Spray pipe; 308. Mounting plate; 4. Shifting box. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] Example: Please refer to Figures 1 to 6 This utility model provides a uniform coating process device for the airtight layer of automobile tires, which aims to solve the structural defects in the prior art, such as the tire fixing device being difficult to adapt to different sizes and the gripping being unstable, and the fixed nozzle causing the coating coverage to be limited and the coating thickness to be uneven.

[0021] Please refer to Figure 1 and Figure 2The uniform coating process device for the airtight layer of automobile tires includes a housing 1, a shifting box 4 disposed on one side of the housing 1, a fixing mechanism 2 disposed on the housing 1, and a spraying mechanism 3 disposed on the shifting box 4. The housing 1 is used to install components that drive the tire to rotate, and the shifting box 4 is used to install components that perform operations on the inner wall of the tire. A rotating disk 209 is rotatably connected to the middle of the outer wall of the housing 1 via a rotating bearing. The rotating disk 209 can rotate circumferentially relative to the housing 1. A connecting strip 210 is fixedly connected to the left side of the outer wall of the rotating disk 209 by welding. The end of the connecting strip 210 away from the rotating disk 209 is fixedly connected to the rear side of the outer wall of the substrate 208. The substrate 208 forms a linkage structure with the rotating disk 209 through the connecting strip 210, so that the substrate 208 can rotate synchronously with the rotating disk 209. The substrate 208 serves as the mounting base of the fixing mechanism 2, and its position corresponds to the center position of the tire to be processed.

[0022] Please refer to Figure 4 and Figure 5 The fixing mechanism 2 has a slot 207 opened in the inner wall of the base plate 208. A motor 201 is fixedly connected to the inner wall of the slot 207. The motor 201 is installed inside the slot 207 as a drive source. The output end of the motor 201 is fixedly connected to a traction disc 202. The traction disc 202 is used to transmit rotational torque. An eccentric shaft hole is provided on the surface of the traction disc 202. A connecting block 203 is rotatably connected to the front side of the outer wall of the traction disc 202. The connecting block 203 is used as a transmission link. The end of the connecting block 203 is rotatably connected to the traction disc 202 through a pin. The front end of the connecting block 203 is rotatably connected to the traction arm 205 through a pin. The middle of the rear side of the outer wall of the traction arm 205 is rotatably connected to the front side of the outer wall of the base plate 208. A clamping block 206 is rotatably connected to the front end of the rear side of the outer wall of the traction arm 205. The clamping block 206 is used to directly contact and fix the tire.

[0023] An auxiliary arm 204 is rotatably connected to the front end of the outer wall of the clamping block 206. The end of the auxiliary arm 204 away from the clamping block 206 is rotatably connected to the front side of the outer wall of the base plate 208. The rotational connection points of the auxiliary arm 204 and the traction arm 205 on the base plate 208 are located on the same horizontal line, and the length of the auxiliary arm 204 is equal to the length of the traction arm 205 between the rotational connection point of the traction arm 205 and the clamping block 206. The clamping block 206 is arc-shaped, and the outer surface of the clamping block 206 is provided with an anti-slip rubber pad. In the assembled state, the motor 201 drives the traction disc 202 to rotate. The traction disc 202 pushes and pulls the traction arm 205 through the connecting block 203. The traction arm 205 swings around the hinge point of the traction arm 205 on the base plate 208. At the same time, the auxiliary arm 204 works with the traction arm 205 to restrict the movement trajectory of the clamping block 206, so that the clamping block 206 can move in the radial direction to adapt to tires of different sizes, ensuring the stability of the tire during high-speed rotation and preventing the tire from falling off.

[0024] As a preferred embodiment, in order to achieve uniform coverage of the coating on the inner wall of the tire and expand the spraying area, please refer to... Figure 6 The spraying mechanism 3 includes a mounting plate 308 fixedly connected to the top wall of the shift box 4. A second motor 301 is fixedly connected to the rear side of the outer wall of the mounting plate 308. An adjusting block 302 is fixedly connected to the output end of the second motor 301. The adjusting block 302 is configured as a disc-shaped structure. A traction arm 303 is rotatably connected to an eccentric position on the front side of the outer wall of the adjusting block 302, so that the adjusting block 302 and the traction arm 303 cooperate to form the driving end of the crank-slider drive structure. The end of the traction arm 303 away from the adjusting block 302 is rotatably connected to a moving... The outer wall of the moving rod 304 is slidably connected to the inner wall of the limiting block 305. The limiting block 305 is fixedly connected to the upper front side of the outer wall of the mounting plate 308. In order to accurately guide the movement of the moving rod 304, a guide through hole is opened in the center of the limiting block 305 along the horizontal direction. The moving rod 304 passes through the guide through hole and the outer diameter of the moving rod 304 and the inner diameter of the guide through hole are clearance-fitted. A fixing ring 306 is fixedly connected to the right side of the outer wall of the moving rod 304. A nozzle 307 is fixedly connected to the inner wall of the fixing ring 306.

[0025] As another preferred embodiment, in order to improve the stability of the connection of each component and the accuracy of the operation, a rotary bearing is provided between the rotating disk 209 and the housing 1. The connecting strip 210 is fixed to the rotating disk 209 and the bottom plate 208 by welding. The side wall of the fixing ring 306 is provided with a threaded hole. The fixing ring 306 is fixed to the end of the moving rod 304 by a fastening screw screwed into the threaded hole. The end of the spray pipe 307 is provided with an atomizing nozzle, and the spraying direction of the atomizing nozzle is perpendicular to the axis of the moving rod 304 and towards the central axis of the fixing mechanism 2, so as to ensure that the paint can be sprayed vertically onto the inner surface of the tire to be processed.

[0026] Working principle: When using the tire coating device, the tire to be processed is first placed in the center of the fixing mechanism 2. The motor 201 is started, and the output end of the motor 201 drives the traction disc 202 to rotate. The traction disc 202 drives the connecting block 203 to move through the eccentric connection. The connecting block 203 pushes or pulls one end of the traction arm 205. Since the middle part of the traction arm 205 is rotatably connected to the base plate 208, the other end of the traction arm 205 will swing. At the same time, under the cooperative limiting action of the auxiliary arm 204, the traction arm 205 and the auxiliary arm 204 jointly drive the clamping block 206 to move in the radial direction. When the clamping block 206 expands outward and presses against the inner wall of the tire, the clamping and fixing action is completed. Then the rotating disc 209 starts to rotate relative to the box 1. The rotating disc 209 drives the base plate 208 and the tire clamped by the fixing mechanism 2 to perform high-speed circular motion synchronously through the connecting bar 210. At this time, the spraying mechanism 3 is started. The motor 2 301 rotates and drives the adjusting block 302 to rotate. The adjusting block 302 drives the traction arm 303 to move. The traction arm 303 then pushes and pulls the moving rod 304. Since the moving rod 304 is restricted within the guide hole of the limiting block 305, the moving rod 304 can only perform left and right reciprocating linear motion, thereby driving the fixing ring 306 and the spray pipe 307 to perform axial reciprocating scanning inside the rotating tire. This ensures that the paint can cover the surface of the tire airtight layer without dead corners and with uniform thickness, effectively solving the problem of uneven coating in the prior art.

Claims

1. A process apparatus for uniformly coating the airtight layer of automobile tires, comprising: The box (1), the shifting box (4), the fixing mechanism (2) and the spraying mechanism (3) are provided. A rotating disk (209) is rotatably connected to the middle of the outer wall of the box (1). A connecting strip (210) is fixedly connected to the left side of the outer wall of the rotating disk (209). The connecting strip (210) is fixedly connected to the rear side of the outer wall of the bottom plate (208). The fixing mechanism (2) is characterized in that it is disposed on the housing (1). The fixing mechanism (2) includes a slot (207) opened in the inner wall of the bottom plate (208). A motor (201) is fixedly connected to the inner wall of the slot (207). A traction disc (202) is fixedly connected to the output shaft of the motor (201). A connecting block (203) is rotatably connected to the front side of the outer wall of the traction disc (202). A traction arm (205) is rotatably connected to the end of the connecting block (203). The middle part of the rear side of the outer wall of the traction arm (205) is rotatably connected to the front side of the outer wall of the bottom plate (208). A clamping block (206) is rotatably connected to the front end of the rear side of the outer wall of the traction arm (205). An auxiliary arm (204) is rotatably connected to the end of the front side of the outer wall of the clamping block (206). One end of the auxiliary arm (204) away from the clamping block (206) is rotatably connected to the front side of the outer wall of the bottom plate (208).

2. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 1, characterized in that, The spraying mechanism (3) is mounted on the shift box (4). The spraying mechanism (3) includes a mounting plate (308) fixedly connected to the top wall of the shift box (4). A second motor (301) is fixedly connected to the rear side of the outer wall of the mounting plate (308). An adjusting block (302) is fixedly connected to the output shaft of the second motor (301). A traction arm (303) is rotatably connected to the front side of the outer wall of the adjusting block (302). A moving rod (304) is rotatably connected to the end of the traction arm (303) away from the adjusting block (302). The outer wall of the moving rod (304) is slidably connected to the inner wall of the limiting block (305). The limiting block (305) is fixedly connected to the upper front side of the outer wall of the mounting plate (308). A fixing ring (306) is fixedly connected to the right side of the outer wall of the moving rod (304). A spray pipe (307) is fixedly connected to the inner wall of the fixing ring (306).

3. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 1, characterized in that, A rotary bearing is provided between the rotating disk (209) and the housing (1). The connecting strip (210) is fixed to the rotating disk (209) and the bottom plate (208) by welding.

4. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 1, characterized in that, The surface of the traction disc (202) is provided with an eccentric shaft hole, and the connecting block (203) is rotatably connected to the traction disc (202) by a pin passing through the eccentric shaft hole.

5. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 1, characterized in that, The connection point between the auxiliary arm (204) and the substrate (208) and the connection point between the traction arm (205) and the substrate (208) are located on the same horizontal straight line, and the length of the auxiliary arm (204) is equal to the length of the traction arm (205) between the connection point with the substrate (208) and the connection point with the clamp (206).

6. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 1, characterized in that, The clamping block (206) has an arc-shaped contact surface on the side facing the center of the rotating disk (209), and the arc-shaped contact surface is provided with anti-slip texture.

7. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 2, characterized in that, The adjusting block (302) has a disc structure, and the traction arm (303) is rotatably connected to the edge of the adjusting block (302) to form a crank-slider drive structure.

8. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 2, characterized in that, The center of the limiting block (305) is provided with a guide hole in the horizontal direction, and the moving rod (304) passes through the guide hole, and the outer diameter of the moving rod (304) is clearance-fitted with the inner diameter of the guide hole.

9. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 2, characterized in that, The side wall of the fixing ring (306) is provided with a threaded hole, and the fixing ring (306) is fixed to the end of the moving rod (304) by a fastening screw screwed into the threaded hole.

10. The apparatus for uniform coating of the airtight layer of automobile tires according to claim 2, characterized in that, The nozzle (307) is provided with an atomizing nozzle at its end, and the spraying direction of the atomizing nozzle is perpendicular to the axis of the moving rod (304) and toward the central axis of the fixing mechanism (2).

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