Self-adaptive sticking machine for tire inner wall silence cotton

Abstract

This invention discloses a self-adaptive bonding machine for tire inner wall sound-absorbing cotton, belonging to the technical field of tire processing equipment. It includes a lifting mechanism, a sound-absorbing cotton feeding assembly, a pre-bonding mechanism, and a tire positioning assembly. The lifting mechanism drives the pre-bonding mechanism and the tire positioning assembly to move up and down towards each other for alignment. The sound-absorbing cotton feeding assembly achieves automatic feeding, paper tape separation, and precise cutting of the sound-absorbing cotton. The tire positioning assembly can self-center and clamp the tire. The pre-bonding mechanism, through elastic compensation and rotation, self-adaptively adheres to the inner wall of the tire to complete the rolling bonding of the sound-absorbing cotton. This invention effectively solves the problems of poor positioning accuracy, weak adaptability, low automation, and unstable bonding quality in existing equipment. It has the advantages of automatic centering, adaptability to multiple tire specifications, uniform bonding without bubbles or wrinkles, high automation, and high production efficiency, and is suitable for batch automated bonding operations of tire inner wall sound-absorbing cotton.

Description

Technical Field

[0001] This invention belongs to the technical field of tire processing equipment, specifically referring to a tire inner wall sound-absorbing cotton self-adhesive pasting machine. Background Technology

[0002] With the increasing demand for noise reduction in automobiles, attaching sound-absorbing cotton to the inner wall of tires has become a mainstream noise reduction process. Current manual and conventional equipment methods for attaching sound-absorbing cotton have significant drawbacks: the tire cannot automatically center itself, resulting in poor coaxiality with the attaching mechanism and easy misalignment; the feeding and separation of the sound-absorbing cotton and paper tape are not smooth, leading to low cutting precision and the formation of burrs and adhesion; the equipment lacks an internal wall self-adaptive bonding structure, resulting in poor adaptability to different tire sizes and the generation of air bubbles and wrinkles; furthermore, the overall level of automation is low, the process is cumbersome, production efficiency is low, and the consistency of attaching quality is poor, making it difficult to meet the demands of efficient and high-precision industrial production. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a tire inner wall sound-absorbing cotton self-adaptive pasting machine, which effectively solves the above problems.

[0004] The technical solution adopted by this invention is as follows: This invention proposes a tire inner wall sound-absorbing cotton self-adaptive pasting machine, including a lifting mechanism, a sound-absorbing cotton feeding assembly, a pre-pasting mechanism, and a tire positioning assembly. The sound-absorbing cotton feeding assembly is located on one side of the lifting mechanism, and the pre-pasting mechanism and the tire positioning assembly are located on the lifting mechanism. The pre-pasting mechanism is located on top of the tire positioning assembly. The lifting mechanism includes a lifting frame, a boom, and a lifting fork. The lifting frame has a motor slot at its center, and lifting slots are provided above and below the motor slot. The boom is slidably disposed in the upper lifting slot, and the lifting fork is slidably disposed in the lower lifting slot. The boom has a machine slot, and limiting sliding slots are provided on both sides of the bottom of the machine slot. A shaft through slot is provided at the center of the bottom front end of the machine slot.

[0005] Furthermore, the lifting mechanism also includes a lifting screw, on which a screw motor is mounted. The screw motor is located in a motor slot, and the lifting screw passes through the motor slot and rotates within the lifting slot. The boom is threadedly connected to the upper lifting screw, and the lifting fork is threadedly connected to the lower lifting screw.

[0006] Preferably, the upper and lower double screws are linked, and the boom and lifting fork move towards each other, allowing the pre-pasting mechanism and tire positioning component to align faster and with higher precision; the double lifting groove limit ensures that the boom and fork slide without deviation, and the equipment operates smoothly; the rod drive has strong rigidity and controllable stroke, which can accurately match the pasting operation of tires of different heights.

[0007] Furthermore, the sound-absorbing cotton feeding assembly includes a storage tray, a discharge plate, and a compression wheel. The discharge plate is fixed to the storage tray. The discharge plate has an anti-detachment section near its end. The end of the anti-detachment section has a discharge port. A diversion plate is provided on the other side of the discharge port on the discharge plate. A front end plate is provided at the bottom of the end of the anti-detachment section. A knife groove plate is provided on the edge of the front end plate near the discharge port. The compression wheel is located between the discharge port and the knife groove plate.

[0008] Furthermore, the sound-absorbing cotton feeding assembly also includes a cutting assembly and a paper tape winding mechanism. The cutting assembly is located at the knife slot plate, and the paper tape winding mechanism is located on the front side of the front end plate. A winding motor is provided at the bottom of the paper tape winding mechanism. The cutting assembly includes a cutting cylinder, a blade, and a blade fixing component. The cutting cylinder is fixed on the front end plate, and the blade is fixed on the blade fixing component. The side wall of the blade fixing component is connected to the telescopic rod of the cutting cylinder, and the blade slides within the knife slot plate.

[0009] Preferably, the diverter plate enables rapid separation of the bonding section from the paper tape, and the paper tape is automatically wound and recycled, eliminating waste material interference in the process; the anti-detachment section guides and squeezes the pressure rollers to ensure that the silent cotton is conveyed without deviation or falling off. The blades and pre-fixed wheel cutting grooves are aligned for cutting, resulting in neat cuts without burrs or adhesion; the integrated design of the discharge plate ensures smooth discharge of the silent cotton and is suitable for continuous automated feeding.

[0010] Furthermore, the pre-adhesion mechanism includes a sound-absorbing cotton pre-fixing wheel, a drive shaft, a special-shaped bushing, and an eccentric rod. Two special-shaped bushings are respectively disposed on the top of the sound-absorbing cotton pre-fixing wheel and the drive shaft. A polygonal boss is provided at the bottom of the drive shaft. The special-shaped bushing on the sound-absorbing cotton pre-fixing wheel is disposed on the eccentric rod, and the eccentric rod is disposed on the polygonal boss of the drive shaft.

[0011] Furthermore, the top of the sound-absorbing cotton pre-fixing wheel is provided with a rotating shaft, the top of the rotating shaft is provided with a bushing connection end, the bushing connection end is rotatably connected to the corresponding irregular bushing, the side wall of the sound-absorbing cotton pre-fixing wheel is provided with a fitting groove, the upper and lower edges of the fitting groove are provided with limiting edges, the fitting groove is also provided with a cutting groove, and the cutting groove is provided with a reserved groove that penetrates the fitting groove.

[0012] Furthermore, the irregular bushing has a top plate at the top and a bottom plate at the bottom. The top plate has a motor mounting platform. One side of the eccentric rod has a bushing groove, and the other side of the eccentric rod has a polygonal shaft hole. A pressure spring is installed in the bushing groove. The irregular bushing at the top of the sound-absorbing cotton pre-fixing wheel slides in the bushing groove, and the end of the pressure spring is attached to the side wall of the irregular bushing. A pre-fixing wheel motor is connected above the sound-absorbing cotton pre-fixing wheel, and the pre-fixing wheel motor is mounted on the motor mounting platform below it.

[0013] Furthermore, the irregularly shaped bushing at the top of the drive shaft slides in the machine groove, and the bottom slide plate of the irregularly shaped bushing slides in the limiting slide groove. The drive shaft slides in the shaft through groove, and a drive shaft motor is connected above the drive shaft. The drive shaft motor is mounted on the motor fixing platform below it. The pre-pasting mechanism also includes a drive shaft cylinder, which is located in the machine groove. The output shaft end of the drive shaft cylinder is connected to the irregularly shaped bushing of the drive shaft.

[0014] Preferably, the pre-fixing wheel of the sound-absorbing cotton has a fitting groove with a limiting edge to ensure that the sound-absorbing cotton adheres firmly and does not shift during pasting; the eccentric rod with pressure spring elastic compensation automatically adapts to tires of different diameters and always adheres tightly to the inner wall; the dual drive of revolution and rotation ensures that the rolling is bubble-free and wrinkle-free, and the pasting quality is stable; the drive shaft cylinder can finely adjust the position of the pre-fixing wheel to adapt to the curvature of the inner wall of different tires.

[0015] Furthermore, the tire positioning assembly includes a tire lifting plate, a tire positioning plate, and a drive plate. The tire lifting plate is mounted on the lifting fork, and the tire positioning plates are arranged in a circumferential array on the tire lifting plate. The drive plate rotates at the bottom of the tire lifting plate, and a drive plate motor is provided below the tire lifting plate. The drive plate motor is connected to the drive plate.

[0016] Furthermore, the tire lifting plate has a drive plate groove at its bottom center and a positioning plate groove arranged in a circumferential array around its edge. The positioning plate groove is connected to the drive plate groove. The bottom of the tire lifting plate also has a bottom horizontal plate. The tire positioning plate slides in the positioning plate groove. The bottom of the tire positioning plate has a sliding column. The top of the tire positioning plate has an anti-slip rod. The drive plate rotates in the drive plate groove and is located above the bottom horizontal plate. The drive plate has an arc-shaped groove arranged in a circumferential array, and the sliding column slides in the arc-shaped groove.

[0017] Preferably, the positioning plates in a circular array retract synchronously, automatically aligning the tire center and achieving high coaxiality with the sound-absorbing cotton pre-fixed wheel; the top anti-slip bar increases friction, preventing slippage and wobbling during tire processing; the synchronous opening and closing structure is compatible with various tire specifications, eliminating the need to change clamps; the drive plate's arc groove drive ensures smooth extension and retraction of the positioning plates without jamming.

[0018] Furthermore, the tire is mounted on the tire lifting plate, the sound-absorbing cotton is placed in the storage tray, the sound-absorbing cotton has an adhesive part and a paper strip, the adhesive part extends from the discharge port, the paper strip is attached to the diverting plate, and the paper strip is wound on the paper strip winding mechanism.

[0019] The beneficial effects achieved by the present invention using the above structure are as follows: 1. Strong adaptability: It can automatically center tires of different specifications, elastically compensate to adapt to tires of different inner diameters, has high versatility, and does not require changing clamps.

[0020] 2. High degree of automation: The entire process of feeding, film separation, precise cutting, rolling and pasting, and mechanism reset is automated, greatly reducing manual operation.

[0021] 3. Excellent bonding quality: The sound-absorbing cotton is firmly pre-fixed, and the double-drive rolling with revolution and rotation ensures that the bonding is free of bubbles, wrinkles, and displacement, and the cut is neat.

[0022] 4. Stable and precise operation: bidirectional synchronous lifting and positioning, screw drive and grooved rail guide cooperation, high positioning accuracy and stable equipment operation.

[0023] 5. Highly efficient and smooth production: Automatic paper tape recycling eliminates waste interference, integrated continuous operation results in high processing efficiency, and it is suitable for mass production. Attached Figure Description

[0024] Figure 1 This is a perspective view of a tire inner wall sound-absorbing cotton self-adhesive pasting machine proposed in this invention; Figure 2 This is a front view of a tire inner wall sound-absorbing cotton self-adhesive pasting machine proposed in this invention; Figure 3 for Figure 2 A cross-sectional view along section line AA; Figure 4 for Figure 2 A cross-sectional view along the cutting line BB; Figure 5 for Figure 3 A cross-sectional view along the section line CC; Figure 6 This is a schematic diagram of the pre-fixed wheel of the sound-absorbing cotton in the tire inner wall sound-absorbing cotton adaptive pasting machine proposed in this invention; Figure 7 This is a schematic diagram of the irregular bushing structure of the tire inner wall sound-absorbing cotton adaptive pasting machine proposed in this invention; Figure 8 for Figure 4 A magnified view of a section at point I; Figure 9 This is a schematic diagram of the working structure of a tire inner wall sound-absorbing cotton adaptive pasting machine proposed in this invention.

[0025] Among them, 1. Lifting mechanism, 11. Lifting frame, 111. Lifting groove, 112. Motor groove, 12. Hanging rod, 121. Machine groove, 122. Limiting slide groove, 123. Shaft through groove, 13. Lifting fork, 14. Lifting screw, 141. Screw motor, 2. Silent cotton feeding assembly, 21. Storage tray, 22. Discharge plate, 221. Anti-detachment section, 222. Discharge port, 223. Diverting plate, 224. Knife groove plate, 225. Front end plate, 23. Extrusion wheel, 24. Cutting assembly, 241. Cutting cylinder, 242. Blade, 243. Blade fixing part, 25. Paper tape winding mechanism, 251. Winding motor, 3. Pre-adhesive mechanism, 31. Silent cotton pre-fixing wheel, 311. Rotating shaft, 3111. Bushing connection end, 312. Fitting 3121. Groove, 313. Reservation groove, 314. Cutting groove, 32. Pre-fixed wheel motor, 33. Drive shaft, 331. Polygonal boss, 34. Irregular bushing, 341. Top plate, 3411. Motor fixing platform, 342. Bottom slide plate, 35. Eccentric rod, 351. Bushing groove, 352. Polygonal shaft hole, 353. Pressure spring, 36. Drive shaft motor, 37. Drive shaft cylinder, 4. Tire positioning assembly, 41. Tire lifting plate, 411. Drive plate groove, 412. Positioning plate groove, 413. Bottom horizontal plate, 42. Tire positioning plate, 421. Sliding column, 422. Anti-slip rod, 43. Drive plate, 431. Arc groove, 44. Drive plate motor, 5. Sound insulation cotton, 51. Adhesive part, 52. Paper tape, 6. Tire.

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] like Figures 1-9As shown, this invention proposes a tire inner wall noise-reducing cotton adaptive pasting machine, including a lifting mechanism 1, a noise-reducing cotton feeding assembly 2, a pre-pasting mechanism 3, and a tire positioning assembly 4. The noise-reducing cotton feeding assembly 2 is located on one side of the lifting mechanism 1, and the pre-pasting mechanism 3 and the tire positioning assembly 4 are located on the lifting mechanism 1, with the pre-pasting mechanism 3 located on top of the tire positioning assembly 4. The lifting mechanism 1 includes a lifting frame 11, a boom 12, and a lifting fork 13. The lifting frame 11 has a motor slot 112 at its center, and the motor slot 112 has lifting slots 111 above and below it. The boom 12 is slidably disposed in the upper lifting slot 111, and the lifting fork 13 is slidably disposed in the lower lifting slot 111. The boom 12 has a machine slot 121, and the bottom sides of the machine slot 121 have limiting sliding slots 122. The bottom center of the front end of the machine slot 121 has a shaft through slot 123.

[0030] The lifting mechanism 1 also includes a lifting screw 14, on which a screw motor 141 is provided. The screw motor 141 is located in the motor slot 112. The lifting screw 14 passes through the motor slot 112 and rotates in the lifting slot 111. The boom 12 is threadedly connected to the upper lifting screw 14, and the lifting fork 13 is threadedly connected to the lower lifting screw 14.

[0031] The silent cotton feeding assembly 2 includes a storage tray 21, a discharge plate 22, and an extrusion wheel 23. The discharge plate 22 is fixed to the storage tray 21. The discharge plate 22 has an anti-detachment section 221 near its end. The end of the anti-detachment section 221 has a discharge port 222. The other side of the discharge port 222 on the discharge plate 22 has a diversion plate 223. The bottom of the end of the anti-detachment section 221 has a front end plate 225. The edge of the front end plate 225 near the discharge port 222 has a grooving plate 224. The extrusion wheel 23 is located between the discharge port 222 and the grooving plate 224.

[0032] The silent cotton feeding assembly 2 also includes a cutting assembly 24 and a paper tape winding mechanism 25. The cutting assembly 24 is located at the knife slot plate 224, and the paper tape winding mechanism 25 is located on the front side of the front end plate 225. The bottom of the paper tape winding mechanism 25 is equipped with a winding motor 251. The cutting assembly 24 includes a cutting cylinder 241, a blade 242, and a blade fixing member 243. The cutting cylinder 241 is fixed on the front end plate 225, and the blade 242 is fixed on the blade fixing member 243. The side wall of the blade fixing member 243 is connected to the telescopic rod of the cutting cylinder 241, and the blade 242 slides in the knife slot plate 224.

[0033] The pre-adhesion mechanism 3 includes a sound-absorbing cotton pre-fixing wheel 31, a drive shaft 33, a special-shaped bushing 34, and an eccentric rod 35. Two special-shaped bushings 34 are respectively located on the top of the sound-absorbing cotton pre-fixing wheel 31 and the drive shaft 33. The bottom of the drive shaft 33 is provided with a polygonal boss 331. The special-shaped bushing 34 on the sound-absorbing cotton pre-fixing wheel 31 is located on the eccentric rod 35, and the eccentric rod 35 is located on the polygonal boss 331 of the drive shaft 33.

[0034] The top of the sound-absorbing cotton pre-fixing wheel 31 is provided with a rotating shaft 311, and the top of the rotating shaft 311 is provided with a bushing connection end 3111. The bushing connection end 3111 is rotatably connected to the corresponding irregular bushing 34. The side wall of the sound-absorbing cotton pre-fixing wheel 31 is provided with a fitting groove 312. The upper and lower edges of the fitting groove 312 are provided with limiting edges 3121. The fitting groove 312 is also provided with a cutting groove 314. The limiting edge 3121 of the cutting groove 314 is provided with a reserved groove 313 that penetrates the fitting groove 312.

[0035] The irregular bushing 34 has a top plate 341 at the top and a bottom plate 342 at the bottom. The top plate 341 has a motor mounting platform 3411. The eccentric rod 35 has a bushing groove 351 on one side and a polygonal shaft hole 352 on the other side. A pressure spring 353 is installed in the bushing groove 351. The irregular bushing 34 at the top of the sound-absorbing cotton pre-fixing wheel 31 slides in the bushing groove 351, and the end of the pressure spring 353 is attached to the side wall of the irregular bushing 34. A pre-fixing wheel motor 32 is connected above the sound-absorbing cotton pre-fixing wheel 31, and the pre-fixing wheel motor 32 is mounted on the motor mounting platform 3411 below it.

[0036] The irregular bushing 34 at the top of the drive shaft 33 slides in the machine groove 121, and the bottom slide plate 342 of the irregular bushing 34 slides in the limiting slide groove 122. The drive shaft 33 slides in the shaft through groove 123, and a drive shaft motor 36 is connected above the drive shaft 33. The drive shaft motor 36 is mounted on the motor fixing platform 3411 below it. The pre-pasting mechanism 3 also includes a drive shaft cylinder 37. The drive shaft cylinder 37 is mounted in the machine groove 121, and the output shaft end of the drive shaft cylinder 37 is connected to the irregular bushing 34 of the drive shaft 33.

[0037] The tire positioning assembly 4 includes a tire lifting plate 41, a tire positioning plate 42, and a drive plate 43. The tire lifting plate 41 is mounted on the lifting fork 13, the tire positioning plates 42 are arranged in a circular array on the tire lifting plate 41, the drive plate 43 rotates at the bottom of the tire lifting plate 41, and a drive plate motor 44 is provided below the tire lifting plate 41. The output shaft end of the drive plate motor 44 is connected to the drive plate 43.

[0038] The tire lifting plate 41 has a drive plate groove 411 at its bottom center and a positioning plate groove 412 arranged in a circular array around its edge. The positioning plate groove 412 is connected to the drive plate groove 411. The tire lifting plate 41 also has a bottom horizontal plate 413 at its bottom. The tire positioning plate 42 slides in the positioning plate groove 412. The bottom of the tire positioning plate 42 has a sliding column 421 and the top of the tire positioning plate 42 has an anti-slip rod 422. The drive plate 43 rotates in the drive plate groove 411 and is located above the bottom horizontal plate 413. The drive plate 43 has an arc-shaped groove 431 arranged in a circular array around its circumference, and the sliding column 421 slides in the arc-shaped groove 431.

[0039] Tire 6 is placed on tire lifting plate 41, sound insulation cotton 5 is placed in storage tray 21, sound insulation cotton 5 is provided with bonding part 51 and paper tape, bonding part 51 extends from discharge port 222, paper tape 52 is bonded to diverter plate 223, and paper tape 52 is wound on paper tape winding mechanism 25.

[0040] In actual use, after the equipment is powered on, the boom 12 of the lifting mechanism 1 is at the upper limit of the lifting groove 111, the lifting fork 13 is at the lower limit, and the pre-adhesion mechanism 3 and the tire positioning assembly 4 maintain the maximum distance; the cutting assembly 24 of the sound-absorbing cotton feeding assembly 2 is in the retracted state, and the blade 242 is stored in the blade groove plate 224; the tire positioning plate 42 of the tire positioning assembly 4 is in the open state, reserving space for tire feeding; the drive shaft cylinder 37, the pre-fixed wheel motor 32, and the drive shaft motor 36 of the pre-adhesion mechanism 3 are all in the stopped state.

[0041] The tire 6 to be processed is placed horizontally in the center area of ​​the tire lifting plate 41. The drive plate motor 44 is started, which drives the drive plate 43 to rotate in the drive plate groove 411. The arc groove 431 on the drive plate 43 rotates synchronously, pushing the sliding column 421 at the bottom of the tire positioning plate 42, so that the tire positioning plate 42 retracts synchronously towards the center along the positioning plate groove 412. The anti-slip rod 422 at the top of the tire positioning plate 42 gradually presses against the outer wall of the tire 6. The tire 6 achieves self-centering through circumferential array synchronous clamping, ensuring the coaxiality of the tire 6 and the sound-absorbing cotton pre-fixing wheel 31, and completing the positioning and clamping.

[0042] The roll of sound-absorbing cotton 5 is loaded into the storage tray 21. The bonding portion 51 of the sound-absorbing cotton 5 is inserted into the discharge plate 22 and guided to the discharge port 222 via the anti-detachment section 221. The paper tape 52 is wrapped around the diverter plate 223 and fixedly connected to the winding roller of the paper tape winding mechanism 25. The winding motor 251 of the paper tape winding mechanism 25 is started to wind the paper tape 52 at a uniform speed. The tension of the paper tape 52 drives the sound-absorbing cotton 5 to be continuously fed out from the storage tray 21. The sound-absorbing cotton 5 is conveyed to the diverter plate 223 via the discharge plate 22. At the diverter plate 223, the bonding portion 51 and the paper tape 52 are separated: the bonding portion 51 extends out from the discharge port 222, and the paper tape 52 is continuously wound and recycled to avoid the paper tape 52 interfering with the pasting process. The extrusion roller 23 at the discharge plate 22 presses the extended bonding part 51 evenly into the fitting groove 312 of the sound-absorbing cotton pre-fixing roller 31, so that the bonding part 51 is attached to the fitting groove 312. During the process, the pre-fixing roller motor 32 starts and drives the sound-absorbing cotton pre-fixing roller 31 to rotate at low speed. The upper and lower limiting edges 3121 of the fitting groove 312 prevent the bonding part 51 from deviating or falling off, thus completing the pre-fixation of the sound-absorbing cotton 5.

[0043] The equipment monitors the feeding length of the sound-absorbing cotton 5 in real time through an encoder. When the pasting length of the bonding part 51 reaches the set value, the cutting groove 314 of the sound-absorbing cotton pre-fixing wheel 31 is precisely aligned with the knife groove plate 224. The cutting cylinder 241 is activated, pushing the blade fixing part 243 and the blade 242 to extend forward along the knife groove plate 224. The blade 242 passes through the reserved groove 313 and the cutting groove 314 on the sound-absorbing cotton pre-fixing wheel 31, precisely cutting off the bonding part 51. After the cutting is completed, the cutting cylinder 241 is reset, and the blade 242 is retracted, waiting for the next feeding and cutting.

[0044] After the bonding part 51 is cut, the screw motor 141 is started, which drives the lifting screw 14 to rotate, so that the lifting rod 12 moves down and the lifting fork 13 moves up, so that the pre-bonding mechanism 3 and the tire positioning component 4 move towards each other, and adjusts the silent cotton pre-fixing wheel 31 into the tire 6 to complete the pre-pressure height positioning.

[0045] The drive shaft cylinder 37 is activated, pushing the drive shaft 33 to move and adjust its position, which in turn drives the sound-absorbing cotton pre-fixing wheel 31 to move, so that the sound-absorbing cotton pre-fixing wheel 31 with the bonding part 51 is tightly bonded to the inner wall of the tire 6. The drive shaft motor 36 is activated, and through the drive shaft 33, the polygonal boss 331 and the eccentric rod 35, the sound-absorbing cotton pre-fixing wheel 31 is driven to revolve to conform to the circumferential trajectory of the inner wall of the tire 6, while simultaneously rotating, so that the bonding part 51 is evenly rolled on the inner wall of the tire 6, completing continuous bonding. The pressure spring 353 in the eccentric rod 35 pushes the irregular bushing 34, so that the sound-absorbing cotton pre-fixing wheel 31 is always tightly bonded to the inner wall of the tire, realizing adaptive bonding for tires of different diameters.

[0046] After the sound insulation cotton 5 is pasted, the drive shaft motor 36 stops, the drive shaft cylinder 37 resets, causing the sound insulation cotton pre-fixing wheel 31 to return to the concentric position with the tire 6. The screw motor 141 reverses, the boom 12 moves upward, the lifting fork 13 moves downward, and the sound insulation cotton pre-fixing wheel 31 exits the tire 6. The drive plate motor 44 reverses, the tire positioning plate 42 retracts, the tire 6 is released, and the tire 6 with the sound insulation cotton 5 pasted is manually removed.

[0047] The above process is the complete working cycle of the equipment. Repeating the above steps can achieve continuous, automated, and adaptive pasting of the sound-absorbing cotton on the inner wall of the tire.

[0048] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] 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.

[0050] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A self-adaptive bonding machine for sound-absorbing cotton on the inner wall of a tire, characterized in that: It includes a lifting mechanism (1), a sound-absorbing cotton feeding assembly (2), a pre-adhesive mechanism (3), and a tire positioning assembly (4). The sound-absorbing cotton feeding assembly (2) is located on one side of the lifting mechanism (1), and the pre-adhesive mechanism (3) and the tire positioning assembly (4) are located on the lifting mechanism (1). The pre-adhesive mechanism (3) is located on top of the tire positioning assembly (4). The lifting mechanism (1) includes a lifting frame (11), a boom (12) and a lifting fork (13). The lifting frame (11) has a motor slot (112) at its center. The motor slot (112) has lifting slots (111) above and below it. The boom (12) is slidably disposed in the upper lifting slot (111). The lifting fork (13) is slidably disposed in the lower lifting slot (111). The boom (12) has a machine slot (121). The bottom sides of the machine slot (121) have limiting slide slots (122). The bottom center of the front end of the machine slot (121) has a shaft through slot (123).

2. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 1, characterized in that: The lifting mechanism (1) further includes a lifting screw (14), on which a screw motor (141) is provided. The screw motor (141) is located in the motor slot (112). The lifting screw (14) passes through the motor slot (112) and rotates in the lifting slot (111). The lifting rod (12) is connected to the upper lifting screw (14) by a thread, and the lifting fork (13) is connected to the lower lifting screw (14) by a thread.

3. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 2, characterized in that: The silent cotton feeding assembly (2) includes a storage tray (21), a discharge plate (22) and a squeezing wheel (23). The discharge plate (22) is fixed on the storage tray (21). The discharge plate (22) has an anti-detachment section (221) near its end. The end of the anti-detachment section (221) has a discharge port (222). The other side of the discharge port (222) on the discharge plate (22) has a diversion plate (223). The bottom of the end of the anti-detachment section (221) has a front end plate (225). The edge of the front end plate (225) near the discharge port (222) has a grooving plate (224). The squeezing wheel (23) is located between the discharge port (222) and the grooving plate (224).

4. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 3, characterized in that: The silent cotton feeding assembly (2) also includes a cutting assembly (24) and a paper tape winding mechanism (25). The cutting assembly (24) is located at the knife groove plate (224), and the paper tape winding mechanism (25) is located on the front side of the front end plate (225). The bottom of the paper tape winding mechanism (25) is provided with a winding motor (251). The cutting assembly (24) includes a cutting cylinder (241), a blade (242), and a blade fixing member (243). The cutting cylinder (241) is fixed on the front end plate (225), and the blade (242) is fixed on the blade fixing member (243). The side wall of the blade fixing member (243) is connected to the telescopic rod of the cutting cylinder (241), and the blade (242) slides in the knife groove plate (224).

5. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 4, characterized in that: The pre-adhesion mechanism (3) includes a sound-absorbing cotton pre-fixing wheel (31), a drive shaft (33), a special-shaped bushing (34), and an eccentric rod (35). Two special-shaped bushings (34) are respectively located on the top of the sound-absorbing cotton pre-fixing wheel (31) and the drive shaft (33). The bottom of the drive shaft (33) is provided with a polygonal boss (331). The special-shaped bushings (34) on the sound-absorbing cotton pre-fixing wheel (31) are located on the eccentric rod (35). The eccentric rod (35) is located on the polygonal boss (331) of the drive shaft (33).

6. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 5, characterized in that: The top of the sound-absorbing cotton pre-fixing wheel (31) is provided with a rotating shaft (311), the top of the rotating shaft (311) is provided with a bushing connection end (3111), the bushing connection end (3111) is rotatably connected to the corresponding irregular bushing (34), the side wall of the sound-absorbing cotton pre-fixing wheel (31) is provided with a fitting groove (312), the upper and lower edges of the fitting groove (312) are provided with a limiting edge (3121), the fitting groove (312) is also provided with a cutting groove (314), and the limiting edge (3121) of the cutting groove (314) is provided with a reserved groove (313) that penetrates the fitting groove (312).

7. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 6, characterized in that: The irregular bushing (34) has a top plate (341) on top and a bottom plate (342) on bottom. The top plate (341) has a motor mounting platform (3411). The eccentric rod (35) has a bushing groove (351) on one side and a polygonal shaft hole (352) on the other side. A pressure spring (353) is provided in the bushing groove (351). The irregular bushing (34) on top of the sound-absorbing cotton pre-fixing wheel (31) slides in the bushing groove (351), and the end of the pressure spring (353) is attached to the side wall of the irregular bushing (34). A pre-fixing wheel motor (32) is connected above the sound-absorbing cotton pre-fixing wheel (31), and the pre-fixing wheel motor (32) is located on the motor mounting platform (3411) below it.

8. The self-adaptive bonding machine for tire inner wall sound-absorbing cotton according to claim 7, characterized in that: The irregular bushing (34) at the top of the drive shaft (33) slides in the machine groove (121), and the bottom slide plate (342) of the irregular bushing (34) slides in the limiting slide groove (122). The drive shaft (33) slides in the shaft through groove (123), and a drive shaft motor (36) is connected above the drive shaft (33). The drive shaft motor (36) is mounted on the motor fixing platform (3411) below it. The pre-pasting mechanism (3) also includes a drive shaft cylinder (37). The drive shaft cylinder (37) is mounted in the machine groove (121), and the output shaft end of the drive shaft cylinder (37) is connected to the irregular bushing (34) of the drive shaft (33).

9. A tire inner wall sound-absorbing cotton self-adhesive pasting machine according to claim 8, characterized in that: The tire positioning assembly (4) includes a tire lifting plate (41), a tire positioning plate (42), and a drive plate (43). The tire lifting plate (41) is mounted on the lifting fork (13). The tire positioning plates (42) are arranged in a circular array on the tire lifting plate (41). The drive plate (43) rotates at the bottom of the tire lifting plate (41). A drive plate motor (44) is provided below the tire lifting plate (41). The output shaft end of the drive plate motor (44) is connected to the drive plate (43).

10. A tire inner wall sound-absorbing cotton self-adhesive pasting machine according to claim 9, characterized in that: The tire lifting plate (41) has a drive plate groove (411) at the bottom center and a positioning plate groove (412) arranged in a circular array on the edge of the tire lifting plate (41). The positioning plate groove (412) is connected to the drive plate groove (411). The bottom of the tire lifting plate (41) is also provided with a bottom horizontal plate (413). The tire positioning plate (42) slides in the positioning plate groove (412). The bottom of the tire positioning plate (42) is provided with a sliding column (421). The top of the tire positioning plate (42) is provided with an anti-slip rod (422). The drive plate (43) rotates in the drive plate groove (411) and is located above the bottom horizontal plate (413). The drive plate (43) has an arc groove (431) arranged in a circular array on the circumference. The sliding column (421) slides in the arc groove (431).

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