Laser texturing system for silencing cotton application layer on inner wall of rubber tire

Abstract

The invention relates to a rubber tire inner wall silencing cotton application layer laser texturing system, and belongs to the technical field of laser machining, the rubber tire inner wall silencing cotton application layer laser texturing system comprises a machining machine body and a dust remover, the upper portion of the right side of the machining machine body is recessed inwards to form an operation table, and the area, corresponding to the lower portion of the operation table, of the machining machine body is constructed into a containing cavity; a dust collection longitudinal pipe is fixedly installed at the output end of the dust removal machine, a communication opening is formed in the bottom of the operation table, and first inwards-concave conveying rollers are rotationally installed on the positions, located on the front side and the rear side of the communication opening, of the inner wall of the containing cavity correspondingly. The textured textures are uniform in depth, the bonding strength of the silencing cotton is guaranteed, the vertical machining avoids the problem that a laser head is prone to touching the table board by mistake, and consequently the table board is ablated and deformed, the equipment maintenance cost is reduced, the flatness of the table board is guaranteed, and the machining precision of the device is further improved.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, specifically a laser texturing system for the sound-absorbing cotton coating layer on the inner wall of a rubber tire. Background Technology

[0002] Laser texturing of the sound-absorbing cotton coating layer on the inner wall of rubber tires is an advanced surface treatment technology applied to the later process of tire manufacturing. In order to solve the problem of the reliability of the adhesion between the sound-absorbing cotton and the rubber inner wall of the tire, it is necessary to texturize the inner wall of the rubber tire. The general texturing method is laser texturing, which is one of the common heat treatment methods.

[0003] Chinese invention patent CN121199376A discloses an automated laser texturing device for tire inner wall coating layers. This device achieves automated laser texturing of the tire inner wall coating layer through the coordinated work of its components. It performs full-circumference surface texturing on a designated area and width of the tire inner wall, increasing the roughness of the tire's airtight layer to enhance the adhesion of the sound-absorbing cotton. This solution offers advantages such as high texturing accuracy, high automation, and easy recycling, effectively improving tire production quality and efficiency. However, the aforementioned device employs… Laser processing of horizontally placed tires creates an arc-shaped surface on the inner wall of the tire. When processing areas near the tire sidewall, the working distance and the incident angle of the laser beam change significantly, leading to laser focus deviation and uneven energy density. As a result, the texture is uneven in depth, severely affecting the bonding strength of the sound-absorbing cotton. Furthermore, when processing horizontally placed tires, the laser head may accidentally touch the table, causing table ablation and deformation. This not only increases equipment maintenance costs but also leads to tire positioning deviation due to reduced table flatness, further deteriorating processing accuracy.

[0004] Therefore, in order to solve the above problems, we propose a laser texturing system for the sound-absorbing cotton coating layer on the inner wall of rubber tires. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention employs vertical processing instead of traditional horizontal processing. This ensures accurate laser focusing, uniform energy density, consistent texture depth, and strong adhesion of the sound-absorbing cotton. Furthermore, vertical processing prevents the laser head from accidentally touching the table surface, thus avoiding table surface ablation and deformation. This reduces equipment maintenance costs, ensures table surface flatness, and further increases the processing accuracy of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser texturing system for the inner wall sound-absorbing cotton coating of a rubber tire, comprising a processing machine and a dust collector. The upper right side of the processing machine is recessed to form an operating table. The area below the operating table of the processing machine is constructed as a receiving chamber. A dust suction pipe is fixedly installed at the output end of the dust collector. A connecting port is provided at the bottom of the operating table. First concave conveying rollers are rotatably installed on both the front and rear sides of the inner wall of the receiving chamber located at the connecting port. A power output component is provided at one end of the rear first concave conveying roller.

[0007] The power output assembly includes an output motor, which is fixedly mounted on one end of the first concave conveying roller on the rear side. The first concave conveying roller on the front side has a conveying cavity inside. A suction cavity is provided inside the first concave conveying roller on the front side and in the area outside the conveying cavity. Several auxiliary suction ports are provided on the outer side of the inner wall of the suction cavity, and several input ports are provided at the center of the inner side of the inner wall of the suction cavity. An air conveying assembly is provided on the side of the inner wall of the conveying cavity away from the output motor.

[0008] On the inner wall of the receiving chamber, a conveying electric guide rail is fixedly mounted on the upper side of the output motor. A carbon dioxide laser is fixedly mounted on the top of the conveying electric guide rail. At the same time, on the inner wall of the receiving chamber, telescopic frames are slidably mounted on opposite sides of the conveying electric guide rail. Second concave conveying rollers are rotatably mounted on the surface of the telescopic frames, and the two second concave conveying rollers are correspondingly arranged directly above the two first concave conveying rollers, forming an upper and lower corresponding conveying structure with the first concave conveying rollers.

[0009] Furthermore, a right-angle protective door is rotatably connected to the rear side of the processing machine body. When the right-angle protective door is closed, it can be combined with the processing machine body to form a closed and complete equipment body.

[0010] Furthermore, the output end of the dust collector extends through into the interior of the receiving chamber, and the surface of the dust suction pipe is fixedly connected to one side of the inner wall of the receiving chamber.

[0011] Furthermore, the connecting port is connected to the receiving chamber so that the power output component in the receiving chamber can transmit power to the operating table.

[0012] Furthermore, the surface of the output motor housing is fixedly connected to the inner wall of the receiving chamber to achieve the positioning and installation of the output motor. The surfaces of the two first concave conveying rollers are close to the end of the output motor and are correspondingly connected through a sprocket and chain transmission mechanism. With the help of the meshing transmission characteristics of the transmission mechanism, the two first concave conveying rollers are ensured to rotate synchronously and in the same direction under the drive of the output power of the output motor.

[0013] Furthermore, the conveying cavity is adapted to the structure of the first concave conveying roller on the front side, and the suction cavity is adapted to the structure of the first concave conveying roller on the front side and is arranged around the conveying cavity. Several of the input ports are located at the minimum diameter position in the middle of the conveying cavity.

[0014] Furthermore, the gas conveying assembly is provided corresponding to the first concave conveying roller on the front side, and includes a planetary gear set. The planetary gear set is fixedly assembled on one side of the inner wall of the conveying cavity, and the gear ring of the planetary gear set is fixedly connected to the inner wall of the conveying cavity. A fixed crossbar is fixedly installed on the sun gear of the planetary gear set. One end of the fixed crossbar extends horizontally through to the inner wall of the receiving chamber and is fixedly connected to one side of the inner wall of the receiving chamber.

[0015] Each planetary gear of the planetary gear set has a blower impeller fixedly installed at one end. The blower impeller is located at the central axis of the conveying cavity. A reinforcing vertical rod is rotatably installed at the end of the blower impeller away from the planetary gear set. The upper and lower ends of the reinforcing vertical rod are fixedly connected to the upper and lower sides of the inner wall of the conveying cavity, respectively, to support the rotation of the blower impeller. Several air intake ports are provided on the side of the inner wall of the conveying cavity close to the planetary gear set.

[0016] Furthermore, one end of the carbon dioxide laser extends directly above the two first concave conveying rollers.

[0017] Furthermore, a right-angle baffle is bolted to the bottom of the operating table above the two first concave conveying rollers, and the right-angle baffle is located below the carbon dioxide laser.

[0018] Furthermore, an adjustable electric telescopic rod is fixedly installed on the inner wall of the receiving chamber corresponding to one side of the telescopic frame. The output end of the adjustable electric telescopic rod is fixedly connected to the telescopic frame to provide driving force for the telescopic movement of the telescopic frame. Enlarged suction groove blocks are fixedly installed on both the left and right sides of the receiving chamber surface located on the telescopic frame. One end of the enlarged suction groove block is fixedly connected to the surface of the dust suction longitudinal pipe through a first connecting pipe, while the left side of the first concave conveying roller on the front side is fixedly connected to the surface of the dust suction longitudinal pipe through a second connecting pipe.

[0019] Compared with the prior art, the present invention provides a laser texturing system for the sound-absorbing cotton coating layer on the inner wall of rubber tires, which has the following beneficial effects:

[0020] 1. This device uses vertical processing instead of traditional horizontal processing, which can make the laser focus accurate and the energy density uniform, ensure the consistency of the texturing texture, ensure the bonding strength of the sound-absorbing cotton, and avoid the problem of the laser head accidentally touching the table surface, causing the table surface to burn or deform. This reduces equipment maintenance costs, ensures the flatness of the table surface, and further increases the processing accuracy of the device.

[0021] 2. This device processes the tire by placing it vertically, with gravity acting evenly on the tire sidewall, avoiding the elliptical deformation caused by its own weight when the tire is laid flat. The laser processes the tire on a standard circular trajectory, ensuring that the textured strip is evenly distributed inside the tire.

[0022] 3. The device can also utilize the suction force generated when the internal structure rotates to assist in the stability of tire processing, avoid the problem of affecting the stability of processing due to vertical tire processing, avoid the problem of uneven roughening, and further improve the processing quality of the device.

[0023] 4. While using the adsorption tire for auxiliary positioning, this device can also adsorb and collect dust and impurities generated during processing, ensuring a clean environment during processing. Attached Figure Description

[0024] Figure 1 This is a perspective view of the entire invention;

[0025] Figure 2 This is a vertical sectional perspective view of the entire invention;

[0026] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0027] Figure 4 This is a perspective view of the first connecting tube of the present invention.

[0028] Figure 5 for Figure 4 Enlarged structural diagram of section B;

[0029] Figure 6 A perspective view of the electric guide rail for conveying the present invention;

[0030] Figure 7 This is a perspective view of the first concave conveying roller of the present invention;

[0031] Figure 8 This is a vertical sectional perspective view of the first concave conveying roller of the present invention;

[0032] Figure 9 for Figure 8 Enlarged structural diagram of section C;

[0033] Figure 10 This is a perspective view of the planetary gear set of the present invention.

[0034] In the diagram: 1. Processing machine body; 2. Dust collector; 3. Operating table; 301. Right-angle protective door; 4. Receiving chamber; 5. Dust suction pipe; 6. First concave conveyor roller;

[0035] 7. Power output assembly; 701. Output motor; 702. Conveying cavity; 703. Inlet; 704. Suction cavity; 705. Auxiliary suction port;

[0036] 8. Air supply assembly; 801. Planetary gear set; 802. Fixed crossbar; 803. Blower impeller; 804. Reinforcing vertical bar; 805. Air intake port;

[0037] 9. Electric conveyor rail; 10. Carbon dioxide laser; 11. Telescopic frame; 12. Second concave conveyor roller; 13. Adjustable electric telescopic rod; 14. Right-angle baffle; 15. Enlarged suction trough block; 16. First connecting pipe; 17. Second connecting pipe. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1 to 10 The laser texturing system for the inner wall sound-absorbing cotton coating of the rubber tire in this embodiment includes a processing body 1 and a dust collector 2. A right-angle protective door 301 is rotatably connected to the rear side of the processing body 1. When the right-angle protective door 301 is closed, it can be enclosed with the processing body 1 to form a closed and complete equipment body. The upper right side of the processing body 1 is recessed inward to form an operating table 3. The area below the operating table 3 of the processing body 1 is constructed as a receiving chamber 4. The output end of the dust collector 2 extends through to the interior of the receiving chamber 4, and the surface of the dust suction pipe 5 is fixedly connected to one side of the inner wall of the receiving chamber 4. The output end of the dust collector 2 is fixedly installed with the dust suction pipe 5. A connecting port is opened at the bottom of the operating table 3, and a first concave conveying roller 6 is rotatably installed on both the front and rear sides of the connecting port on the inner wall of the receiving chamber 4. A power output component 7 is provided at one end of the first concave conveying roller 6 on the rear side. The connecting port is connected to the receiving chamber 4 so that the power of the power output component 7 in the receiving chamber 4 can be transmitted to the operating table 3.

[0040] The power output component 7 includes an output motor 701, which is fixedly mounted on one end of the rear first concave conveying roller 6. The front first concave conveying roller 6 has a conveying cavity 702 inside. Inside the front first concave conveying roller 6, and in the area outside the conveying cavity 702, a suction cavity 704 is provided. Several auxiliary suction ports 705 are provided on the outer side of the inner wall of the suction cavity 704, and several input ports 703 are provided at the center of the inner side of the inner wall of the suction cavity 704. An air supply component 8 is provided on the side of the inner wall of the conveying cavity 702 away from the output motor 701. The housing surface of the output motor 701 is fixedly connected to the inner wall of the receiving chamber 4 to achieve the positioning and installation of the output motor 701. The surfaces of the two first concave conveying rollers 6 are close to the end of the output motor 701 and are correspondingly connected through a sprocket and chain transmission mechanism. With the meshing transmission characteristics of this transmission mechanism, the two first concave conveying rollers 6 are driven by the output power of the output motor 701 to achieve synchronous and same-direction rotation, thereby ensuring the consistency of the conveying action.

[0041] The conveying cavity 702 is adapted to the structure of the first concave conveying roller 6 on the front side, and the suction cavity 704 is adapted to the structure of the first concave conveying roller 6 on the front side and is arranged around the conveying cavity 702. Several input ports 703 are located at the minimum diameter position in the middle of the conveying cavity 702.

[0042] Among them, the air conveying component 8 is set corresponding to the first concave conveying roller 6 on the front side. It includes a planetary gear set 801, which is fixedly assembled on one side of the inner wall of the conveying cavity 702. The gear ring of the planetary gear set 801 is fixedly connected to the inner wall of the conveying cavity 702 to realize the positioning and fixation of the planetary gear set 801. A fixed crossbar 802 is fixedly installed on the sun gear of the planetary gear set 801. One end of the fixed crossbar 802 extends horizontally through to the inner wall of the receiving chamber 4 and is fixedly connected to one side of the inner wall of the receiving chamber 4 to form a fixed support structure for the sun gear.

[0043] Each planetary gear of the planetary gear set 801 is fixedly mounted with a blower impeller 803 at one end. The blower impeller 803 is positioned at the central axis of the conveying cavity 702. A reinforcing vertical rod 804 is rotatably mounted at the end of the blower impeller 803 away from the planetary gear set 801. The upper and lower ends of the reinforcing vertical rod 804 are fixedly connected to the upper and lower sides of the inner wall of the conveying cavity 702, respectively, to provide rotational support for the blower impeller 803 and improve its operational stability. Several air intake ports 805 are provided on the side of the inner wall of the conveying cavity 702 near the planetary gear set 801. The air intake ports 805 provide an airflow channel for the smooth rotation of the blower impeller 803 and at the same time create a stable airflow within the conveying cavity 702.

[0044] In this chamber, a conveying electric guide rail 9 is fixedly mounted on the inner wall of the receiving chamber 4, corresponding to the upper position of the output motor 701. A carbon dioxide laser 10 is fixedly mounted on the top of the conveying electric guide rail 9. One end of the carbon dioxide laser 10 extends directly above the two first concave conveying rollers 6, realizing the movable positioning of the laser. At the same time, on the inner wall of the receiving chamber 4, a telescopic frame 11 is slidably mounted on the opposite sides of the conveying electric guide rail 9. A second concave conveying roller 12 is rotatably mounted on the surface of the telescopic frame 11, and the two second concave conveying rollers 12 are correspondingly arranged directly above the two first concave conveying rollers 6, forming an upper and lower corresponding conveying structure with the first concave conveying rollers 6.

[0045] The bottom of the operating table 3 is fixedly mounted with a right-angle baffle 14 above the two first concave conveying rollers 6 by bolts. The right-angle baffle 14 is located below the carbon dioxide laser 10. An adjustable electric telescopic rod 13 is fixedly mounted on the inner wall of the accommodating chamber 4 on one side corresponding to the telescopic frame 11. The output end of the adjustable electric telescopic rod 13 is fixedly connected to the telescopic frame 11 to provide driving force for the telescopic movement of the telescopic frame 11, thereby realizing the adjustment of the upper and lower positions of the second concave conveying roller 12 to adapt to different conveying needs. On the surface of the accommodating chamber 4, on both the left and right sides of the telescopic frame 11, enlarged suction groove blocks 15 are fixedly mounted. One end of the enlarged suction groove block 15 is fixedly connected to the surface of the dust suction longitudinal pipe 5 through the first connecting pipe 16. The left side of the first concave conveying roller 6 on the front side is fixedly connected to the surface of the dust suction longitudinal pipe 5 through the second connecting pipe 17.

[0046] The working principle of the above embodiments is as follows:

[0047] Before using the device, place the rubber tire to be processed on the operating table 3 of the processing machine body 1, ensuring that the placement area corresponds to the position directly above the two first concave conveying rollers 6. Then close the right-angle protective door 301 on the rear side of the processing machine body 1, so that it and the processing machine body 1 form a closed and complete equipment body. This prevents laser leakage and dust diffusion, and provides a stable closed environment for operation. At the same time, start the dust collector 2, so that the dust suction pipe 5, the first connecting pipe 16, the second connecting pipe 17 and each dust suction component form a negative pressure adsorption state, which prepares for subsequent dust collection.

[0048] The electric telescopic rod 13 of the inner wall of the receiving chamber 4 is activated. Its output end drives the telescopic frame 11 to slide and extend along the inner wall of the receiving chamber 4, which drives the two second concave conveying rollers 12 mounted on the telescopic frame 11 to move up and down until the second concave conveying rollers 12 and the first concave conveying roller 6 below form a state that fits the tire. The right-angle baffle 14 at the bottom of the operating table 3 is fixed by bolts to limit the tire to the left and right, so as to avoid deviation during the conveying process and ensure the accuracy of subsequent laser texturing.

[0049] The output motor 701 in the power output assembly 7 is started. The output end of the output motor 701 is fixedly assembled with one end of the first concave conveying roller 6 on the rear side. At the same time, the two first concave conveying rollers 6 are connected near the output motor 701 through a sprocket and chain transmission mechanism. With the help of the meshing transmission characteristics of the sprocket and chain, the power output by the output motor 701 can be synchronously transmitted to the two first concave conveying rollers 6, driving them to rotate in the same direction at a uniform speed. Under the rotation of the first concave conveying roller 6 and the auxiliary clamping action of the second concave conveying roller 12, the tire rotates smoothly along the operating table 3.

[0050] The electric conveyor rail 9 and the carbon dioxide laser 10 are started, and one end of the carbon dioxide laser 10 extends directly above the two first concave conveyor rollers 6. The laser can be accurately aimed at the roughened area of ​​the tire and emitted. The heat effect of the laser makes the tire interior form a uniform rough surface, which improves the subsequent bonding firmness with the sound-absorbing cotton. The enclosed environment and right-angle baffle 14 can further avoid laser scattering and ensure the safety of operation.

[0051] When the first concave conveying roller 6 rotates synchronously with the power source, the air conveying assembly 8 inside it starts synchronously. Since the gear ring of the planetary gear set 801 is fixedly connected to the inner wall of the conveying cavity 702, it rotates together with the conveying roller. The sun gear is fixed to the inner wall of the receiving chamber 4 through the fixed crossbar 802. In this way, the rotation of the gear ring drives the planetary gears to revolve around the sun gear and rotate on their own axis, thereby driving the blower impeller 803, which is fixed at one end of the planetary gears, to rotate at the central axis position of the conveying cavity 702. When the blower impeller 803 rotates, air is drawn through the air intake 8 on the side of the inner wall of the conveying cavity 702 near the planetary gear set 801. 05. External airflow is introduced to form a stable airflow in the conveying cavity 702. The airflow passes through the smallest diameter position in the middle of the conveying cavity 702. At the same time, the suction force generated by the dust collector 2 will also generate a suction force in the conveying cavity 702 through the second connecting pipe 17. With the setting of the narrow waist in the middle, a larger suction force can be generated in the middle. Then, the auxiliary suction port 705 is used to fix the tire with auxiliary suction force and can concentrate the dust generated during processing. In addition, with the enlarged suction groove block 15 on the first connecting pipe 16, the dust concentration effect during the processing of the device can be better guaranteed.

[0052] After the tire has completed the overall texturing process, the carbon dioxide laser 10 and the gas delivery assembly 8 are turned off, the output motor 701 stops running, the conveying roller group stops conveying, the electric telescopic rod 13 is adjusted to drive the telescopic frame 11 to drive the second concave conveying roller 12 to rise and reset, the right-angle protective door 301 is opened and the processed tire is taken out. This device highlights the innovative structure and will not elaborate on the existing technologies, such as the dust collector 2 and the electric conveying guide rail 9.

[0053] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A laser texturing system for the inner wall sound-absorbing cotton coating of a rubber tire, comprising a processing machine (1) and a dust collector (2), characterized in that: The upper right side of the processing machine body (1) is recessed to form an operating table (3). The area below the operating table (3) of the processing machine body (1) is constructed as a receiving chamber (4). The output end of the dust collector (2) is fixedly installed with a dust suction pipe (5). The bottom of the operating table (3) is provided with a connecting port. The inner wall of the receiving chamber (4) is rotatably installed with a first concave conveying roller (6) on both the front and rear sides of the connecting port. One end of the first concave conveying roller (6) on the rear side is provided with a power output component (7). The power output assembly (7) includes an output motor (701), which is fixedly mounted on one end of the rear first concave conveying roller (6). The front first concave conveying roller (6) has a conveying cavity (702) inside. Inside the front first concave conveying roller (6) and in the area outside the conveying cavity (702), a suction cavity (704) is provided. Several auxiliary suction ports (705) are provided on the outer side of the inner wall of the suction cavity (704), and several input ports (703) are provided at the center of the inner side of the inner wall of the suction cavity (704). An air conveying assembly (8) is provided on the side of the inner wall of the conveying cavity (702) away from the output motor (701). On the inner wall of the accommodating chamber (4), a conveying electric guide rail (9) is fixedly mounted on the upper side of the output motor (701). A carbon dioxide laser (10) is fixedly mounted on the top of the conveying electric guide rail (9). Meanwhile, on the inner wall of the accommodating chamber (4), a telescopic frame (11) is slidably mounted on both sides of the conveying electric guide rail (9). A second concave conveying roller (12) is rotatably mounted on the surface of the telescopic frame (11). The two second concave conveying rollers (12) are correspondingly arranged directly above the two first concave conveying rollers (6), forming an upper and lower corresponding conveying structure with the first concave conveying rollers (6).

2. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The rear side of the processing machine body (1) is rotatably connected to a right-angle protective door (301). When the right-angle protective door (301) is closed, it can be enclosed together with the processing machine body (1) to form a closed and complete equipment body.

3. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The output end of the dust collector (2) extends through the interior of the receiving chamber (4), and the surface of the dust suction pipe (5) is fixedly connected to one side of the inner wall of the receiving chamber (4).

4. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The connecting port is connected to the receiving chamber (4) so ​​that the power output component (7) in the receiving chamber (4) can transmit power to the operating table (3).

5. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The housing surface of the output motor (701) is fixedly connected to the inner wall of the receiving chamber (4) to realize the positioning and installation of the output motor (701). The surfaces of the two first concave conveying rollers (6) are close to one end of the output motor (701) and are correspondingly connected through a sprocket and chain transmission mechanism. With the help of the meshing transmission characteristics of the transmission mechanism, the two first concave conveying rollers (6) are driven by the output power of the output motor (701) to achieve synchronous and same-direction rotation.

6. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The conveying cavity (702) is adapted to the structure of the first concave conveying roller (6) on the front side, and the suction cavity (704) is adapted to the structure of the first concave conveying roller (6) on the front side and is arranged around the conveying cavity (702). Several of the input ports (703) are located at the minimum diameter position in the middle of the conveying cavity (702).

7. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The gas delivery assembly (8) is provided corresponding to the first concave conveying roller (6) on the front side. It includes a planetary gear set (801), which is fixedly assembled on one side of the inner wall of the conveying cavity (702). The gear ring of the planetary gear set (801) is fixedly connected to the inner wall of the conveying cavity (702). A fixed crossbar (802) is fixedly installed on the sun gear of the planetary gear set (801). One end of the fixed crossbar (802) extends horizontally through to the inner wall of the receiving chamber (4) and is fixedly connected to one side of the inner wall of the receiving chamber (4). Each planetary gear of the planetary gear set (801) is fixedly mounted with a blower impeller (803) at one end. The blower impeller (803) is located at the central axis of the conveying cavity (702). A reinforcing vertical rod (804) is rotatably mounted at the end of the blower impeller (803) away from the planetary gear set (801). The upper and lower ends of the reinforcing vertical rod (804) are fixedly connected to the upper and lower sides of the inner wall of the conveying cavity (702) to provide rotational support for the blower impeller (803). Several air intakes (805) are provided on the side of the inner wall of the conveying cavity (702) close to the planetary gear set (801).

8. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: One end of the carbon dioxide laser (10) extends directly above the two first concave conveying rollers (6).

9. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: The bottom of the operating table (3) is fixed with a right-angle baffle (14) by bolts above the two first concave conveying rollers (6), and the right-angle baffle (14) is located on the lower side of the carbon dioxide laser (10).

10. The laser texturing system for the inner wall sound-absorbing cotton coating layer of a rubber tire according to claim 1, characterized in that: An adjustable electric telescopic rod (13) is fixedly installed on the inner wall of the accommodating chamber (4) on one side corresponding to the telescopic frame (11). The output end of the adjustable electric telescopic rod (13) is fixedly connected to the telescopic frame (11) to provide driving force for the telescopic movement of the telescopic frame (11). On the surface of the accommodating chamber (4), enlarged suction groove blocks (15) are fixedly installed on both the left and right sides of the telescopic frame (11). One end of the enlarged suction groove block (15) is fixedly connected to the surface of the dust suction vertical pipe (5) through the first connecting pipe (16). The left side of the first concave conveying roller (6) on the front side is fixedly connected to the surface of the dust suction vertical pipe (5) through the second connecting pipe (17).

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