Laser processing equipment for cleaning the inner wall of a tire

Abstract

The application relates to a tire inner wall cleaning treatment equipment, in particular to laser processing equipment for tire inner wall cleaning; the tire inner wall can be cleaned efficiently and conveniently; the equipment comprises a conveying platform, further comprises: a tire conveying mechanism for conveying the tire to a processing position; a tire positioning mechanism for positioning the center of the tire; a dust suction chamber for quickly removing smoke and dust generated in the tire cleaning process; a laser cleaning mechanism for processing the inner surface of the tire; the tire conveying mechanism comprises a synchronous belt, the synchronous belt is arranged in parallel on the conveying platform, a proximity sensor is arranged on the conveying platform and located beside the synchronous belt; the laser cleaning mechanism comprises a galvanometer and a four-axis motion table, the conveying platform is provided with an opening, the galvanometer is installed on the four-axis motion table, the four-axis motion table is installed on a rack and located at the bottom of the conveying platform, and the galvanometer can pass through the opening and be located at the center position of the two synchronous belts.

Description

Technical Field

[0001] This invention relates to a tire inner wall cleaning and treatment device, and more particularly to a laser processing equipment for tire inner wall cleaning. Background Technology

[0002] Tire noise is one of the main sources of noise during vehicle operation. Reducing tire noise can be achieved by attaching sound-absorbing cotton to the inside of the tires. Due to the harsh operating conditions of tires, it is essential to ensure the sound-absorbing cotton is firmly adhered to the tire surface.

[0003] Currently, in existing technologies, the use of release agents and other similar products is unavoidable during tire production. This makes it difficult for sound-absorbing cotton to adhere effectively to the tire surface using adhesives. Therefore, it is necessary to remove the release agents and other substances from the surface. Typically, water or dry ice is used for cleaning. However, these methods are time-consuming and prone to leaving residues.

[0004] Laser cleaning vaporizes or sublimates the material to be removed through non-contact action, causing no pollution to the environment and no damage to the substrate. It is a tire cleaning method with significant advantages.

[0005] Designing automated laser processing equipment to achieve automatic tire cleaning is an important task for realizing the industrial manufacturing of silent tires. Summary of the Invention

[0006] In view of the problems mentioned in the background art, the purpose of this invention is to provide a laser processing equipment for cleaning the inner wall of tires, which can clean the inner wall of tires efficiently and conveniently.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a laser processing equipment for cleaning the inner wall of a tire, comprising a conveying platform, and further comprising:

[0008] Tire conveying mechanism used to transport tires to the processing position;

[0009] Tire positioning mechanism used to locate the center of the tire;

[0010] A vacuum chamber used to quickly remove the fumes and dust generated during tire washing;

[0011] Laser processing mechanism for treating the inner surface of tires;

[0012] The tire conveying mechanism includes two synchronous belts that are arranged in parallel on the conveying platform. The conveying platform is also equipped with a proximity sensor located next to the synchronous belts.

[0013] The laser processing mechanism includes a galvanometer and a four-axis motion stage. The conveying platform has an opening, and the galvanometer is mounted on the four-axis motion stage. The four-axis motion stage is located at the bottom of the conveying platform, and the galvanometer can pass through the opening and be located at the center of the synchronous belts on both sides.

[0014] The dust collection chamber is located below the conveyor platform;

[0015] The tire positioning mechanism includes a slide rail, a slide table one, and a slide table two. Both sides of the slide table one and slide table two are provided with pressure rollers for fixing the tire. The slide table one and slide table two are slidably engaged with the slide rail. The slide rail is located above the synchronous belt. The mechanism also includes a cylinder one. The cylinder body of the cylinder one is mounted on the slide rail and its telescopic end is connected to the slide table one or the slide table two. The slide rail is provided with a pulley two. The slide table one is connected to one side of the pulley two, and the slide table two is connected to the other side of the pulley two. The cylinder one is located above the galvanometer.

[0016] Preferably, the dust collection chamber includes a dust collection pipe, a sealing cover, and a sealing seat. The sealing seat is located at the lower part of the conveying platform. The upper end of the sealing cover is connected to the conveying platform, and the lower end of the sealing cover is connected to the sealing seat. The sealing cover and the sealing seat form a semi-sealed cavity. The sealing cover is connected to the dust collection pipe.

[0017] Preferably, the four-axis motion stage includes a C-axis turntable, an X-axis slide table is mounted on the C-axis turntable, a Z-axis slide table is mounted on the X-axis slide table, and the Z-axis slide table is rotated with the galvanometer via the B-axis.

[0018] Preferably, the Z-axis slide is also equipped with three single-point ranging sensors at its end, and the included angle between adjacent single-point ranging sensors is greater than 90°.

[0019] In summary, the present invention has the following main beneficial effects:

[0020] The laser processing equipment for cleaning the inner wall of tires of the present invention can clamp and position tires when adapting to tires of different sizes and models, thereby automatically correcting the position of the tire to be processed.

[0021] Furthermore, a laser processing mechanism is installed at the center of the positioned tire, which uses a four-axis slide to drive a laser generator and a galvanometer to process the inner surface of the tire.

[0022] Through the structural design of the dust collection chamber, a downward vortex is formed when the inner surface of the tire is processed, which effectively removes the fumes during tire processing and ensures that the environment is pollution-free during the tire processing process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a top view of the internal structure of the present invention;

[0026] Figure 4 This is a partial structural diagram of the internal structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the laser processing mechanism of the present invention. Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the laser processing mechanism of the present invention. Figure 2 .

[0029] In the diagram: 1. Conveying platform; 2. Synchronous belt; 3. Proximity sensor; 5. Galvanometer; 6. Four-axis motion table; 7. Opening; 8. Slide rail; 9. Slide table one; 10. Slide table two; 11. Pressure roller; 12. Cylinder one; 13. Pulley two; 14. Loading platform; 15. Universal ball bearing; 16. Dust suction pipe; 17. Sealing cover; 18. Sealing seat; 19. X-axis slide table; 20. B-axis; 21. Z-axis slide table; 22. C-axis turntable; 23. Single-point distance sensor. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In a specific implementation, the laser processing equipment for cleaning the inner wall of a tire according to the present invention includes a tire conveying mechanism for conveying the tire to the processing position; a tire positioning mechanism for positioning the center of the tire to ensure that the center of the tire coincides with the rotation center of the galvanometer 5; a dust extraction chamber for quickly removing the smoke and dust generated during the tire cleaning process; a laser processing mechanism for realizing the movement of the laser galvanometer, so that the laser focus emitted by the galvanometer 5 forms a complete spatial envelope on the inner surface of the tire; the galvanometer 5 for irradiating the inner wall surface of the tire with laser light; and a controller for controlling the movement and logic of the various components of the system.

[0032] The tire conveying mechanism includes a timing belt 2, which consists of two parallel timing belts arranged on a conveying platform 1. The conveying platform 1 is also equipped with proximity sensors 3, which are located next to the timing belts 2. The tire to be processed is conveyed to the middle position on the conveying platform 1 via the timing belts 2. The proximity sensors 3 can sense the accurate position of the tire. There are four proximity sensors 3, which are distributed at the four corners relative to the timing belts 2. When all four proximity sensors 3 receive a trigger signal, the timing belts 2 stop moving, and the tire is in the position to be processed.

[0033] The laser processing mechanism includes a galvanometer 5 and a four-axis motion stage 6. The conveying platform 1 has an opening 7. The galvanometer 5 is mounted on the four-axis motion stage 6, which is located at the bottom of the conveying platform 1. The galvanometer 5 can pass through the opening 7 and is located at the center of the synchronous belts 2 on both sides. The galvanometer 5 is mounted on the B-axis 20. The dust collection chamber is located below the conveying platform 1.

[0034] The tire positioning mechanism includes a slide rail 8, a first slide table 9, and a second slide table 10. Both sides of the first slide table 9 and the second slide table 10 are equipped with pressure rollers 11 for fixing the tire. The first slide table 9 and the second slide table 10 are slidably engaged with the slide rail 8. The slide rail 8 is located above the synchronous belt 2. It also includes a first cylinder 12. The cylinder body of the first cylinder 12 is mounted on the slide rail 8, and its telescopic end is connected to either the first slide table 9 or the second slide table 10. The slide rail 8 is equipped with a second pulley 13. The first slide table 9 is connected to one side of the second pulley 13, and the second slide table 10 is connected to the other side of the second pulley 13. The first cylinder 12 is located above the galvanometer 5.

[0035] The extension and retraction end of cylinder 12 drives the movement of slide 9 or slide 10. Slide 9 and slide 10 are located on both sides of cylinder 12 and are symmetrically distributed. Slide 9 is connected to one side of pulley 13, and slide 10 is connected to the other side of pulley 13. If the extension and retraction end of cylinder 12 is connected to slide 9, when the extension and retraction end of cylinder 12 pushes slide 9 to move, slide 9 drives pulley 13 to move. The two sides of pulley 13 move in opposite directions, so that slide 10 can also move relative to it, and the direction of movement is opposite to that of slide 9, and the movement distance is equal.

[0036] When a tire awaits processing on conveyor platform 1, cylinder 12 drives slides 9 and 10 away from each other. When the tire enters conveyor platform 1, cylinder 12 drives slides 9 and 10 closer together, and pressure rollers 11 on slides 9 and 10 press the tire firmly.

[0037] The tire conveying mechanism also includes a loading platform 14, which is located between two synchronous belts 2. The loading platform 14 is provided with several universal ball bearings 15 and a through hole with an opening 7. The tire to be processed can be moved more easily by the universal ball bearings 15.

[0038] The dust collection chamber includes a suction pipe 16, a sealing cover 17, and a sealing seat 18. The sealing seat 18 is located below the conveying platform 1. The upper end of the sealing cover 17 is connected to the loading platform 14, and the lower end of the sealing cover 17 is connected to the sealing seat 18. The sealing cover 17 and the sealing seat 18 form a semi-sealed cavity. The sealing cover 17 is connected to the suction pipe 16. When the vacuum cleaner is working, negative pressure is connected to the semi-sealed cavity through the suction pipe 16, forming a downward vortex in the semi-sealed cavity. Gas and substances at the through holes on the loading platform 14 of the conveying device are drawn into the semi-sealed cavity by the vortex and enter the vacuum cleaner through the suction pipe 16. During this process, dust particles enter the suction pipe 16 under the action of gravity and the vortex, preventing diffusion.

[0039] The four-axis motion table 6 includes a C-axis turntable 22, an X-axis slide 19 mounted on the C-axis turntable 22, and a Z-axis slide 21 mounted on the X-axis slide 19. The Z-axis slide 21 is rotated and engaged with the galvanometer 5 via a B-axis 20. The Z-axis slide 21 drives the galvanometer 5 to rise to the same height as the inner surface of the tire to be treated. The movement of the X-axis slide 19 brings the galvanometer 5 closer to the inner surface of the tire. The rotation of the C-axis turntable 22 allows the galvanometer 5 to move in a circular motion along the inner surface of the tire. The B-axis 20 then drives the galvanometer 5 to treat the inner surface of the tire.

[0040] The Z-axis slide 21 is also equipped with three single-point ranging sensors at its end, with the included angle between adjacent single-point ranging sensors being greater than 90°; the B-axis adjustable galvanometer's light output direction is angled with the Z-axis. The Z-axis end is also equipped with three single-point ranging sensors, with the included angle between any two of the three sensors being greater than 90°.

[0041] When the angle between the light outlet of the galvanometer and the Z-axis is less than 90° due to the rotation of the B-axis, the main shaft C is rotated under the control of the controller, and the horizontal axis X performs interpolation circular motion to correct the focal length error caused by the misalignment of the tire center with the main shaft C.

[0042] As the B-axis rotates, and the angle between the light outlet of the galvanometer and the Z-axis reaches 90°, under the control of the controller, the horizontal axis X adjusts the distance between the galvanometer and the inner wall of the tire based on the centers measured by the three single-point ranging sensors 23. Then, the vertical axis Z moves along the tire height direction, completing the cleaning of one section. After completion, the main shaft C rotates by an angle, repeating the above process until the entire inner wall of the tire is cleaned.

[0043] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser processing equipment for cleaning the inner wall of tires, comprising a conveyor platform (1), characterized in that, It also includes: a tire conveying mechanism for conveying tires to the processing position; Tire positioning mechanism used to locate the center of the tire; A vacuum chamber used to quickly remove the fumes and dust generated during tire washing; Laser cleaning system for treating the inner surface of tires; The tire conveying mechanism includes a timing belt (2), which consists of two parallel timing belts arranged on a conveying platform (1). The conveying platform (1) is also equipped with a proximity sensor (3), which is located next to the timing belt (2). The laser cleaning mechanism includes a galvanometer (5) and a four-axis motion stage (6). The conveying platform (1) has an opening (7). The galvanometer (5) is mounted on the four-axis motion stage (6). The four-axis motion stage (6) is mounted on the frame and located at the bottom of the conveying platform (1). The galvanometer (5) can pass through the opening (7) and be located at the center of the synchronous belts (2) on both sides. The dust collection chamber is mounted on the frame, located below the conveyor platform (1), and surrounds the laser cleaning mechanism inside the dust collection chamber; The tire positioning mechanism includes a slide rail (8), a slide table one (9) and a slide table two (10). Both sides of the slide table one (9) and the slide table two (10) are provided with pressure rollers (11) for fixing the tire. The slide table one (9) and the slide table two (10) are slidably engaged with the slide rail (8). The slide rail (8) is located above the synchronous belt (2). It also includes a cylinder one (12). The cylinder body of the cylinder one (12) is mounted on the slide rail (8) and its telescopic end is connected to the slide table one (9) or the slide table two (10). The slide rail (8) is provided with a pulley two (13). The slide table one (9) is connected to one side of the pulley two (13), and the slide table two (10) is connected to the other side of the pulley two (13). The cylinder (12) is located above the galvanometer (5); The dust collection chamber includes a dust collection pipe (16), a sealing cover (17) and a sealing seat (18). The sealing seat (18) is located at the lower part of the conveying platform (1). The upper end of the sealing cover (17) is connected to the conveying platform (1), and the lower end of the sealing cover (17) is connected to the sealing seat (18). The sealing cover (17) and the sealing seat (18) form a semi-sealed cavity. The sealing cover (17) is connected to the dust collection pipe (16). The four-axis motion table (6) includes a C-axis turntable (22), an X-axis slide (19) is mounted on the C-axis turntable (22), and a Z-axis slide (21) is mounted on the X-axis slide (19). The Z-axis slide (21) is rotated with the galvanometer (5) via the B-axis (20).

2. The laser processing equipment for cleaning the inner wall of tires as described in claim 1, characterized in that, The C-axis rotary table (22) and the X-axis slide table (19) move synchronously and in coordination to adapt to the relative position changes of the inner wall processing surface of the tire.

3. The laser processing equipment for cleaning the inner wall of tires as described in claim 1, characterized in that, The Z-axis slide (21) is also equipped with three single-point ranging sensors (23) at its end, and the included angle between adjacent single-point ranging sensors is greater than 90°.

4. The laser processing equipment for cleaning the inner wall of tires as described in claim 1, characterized in that, The values ​​obtained by the three single-point ranging sensors (23) are used to calculate the actual center point position of the inner wall of the tire, which is then used as the adjustment command of the X-axis slide (19) to adjust the tire positioning error and thus improve the cleaning effect of the inner wall of the tire.

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