Low-noise tire and preparation device therefor

Abstract

The present invention relates to the technical field of tires. Provided are a low-noise tire and a preparation device therefor. The low-noise tire comprises a tire body, wherein an inner liner is provided on the inner ring of the tire body; a sealant layer is provided at the end of the inner liner away from the tire body; and a noise reduction layer is provided at the end of the sealant layer away from the inner liner, the end of the noise reduction layer away from the sealant layer being provided with several slots in an array. The slots can relieve stress on a sponge layer, thereby buffering against air resistance and road surface impacts, prolonging the service life of the sponge layer; thus, the present invention solves the technical problem of a tire being subjected to impacts from the ground during high-speed rotation, which in turn generate stress on a silent layer, accelerating the aging of the silent layer and shortening the fatigue life thereof.

Description

Low-noise tire and manufacturing device thereof Technical Field

[0001] The present invention relates to the technical field of tires, and in particular to a low-noise tire and a manufacturing device thereof. Background Art

[0002] Noise is a very important factor affecting vehicle comfort performance, especially for new energy vehicles that have abandoned traditional engines. Excluding the interference factor of engine noise, most of the noise comes from tire noise generated by the contact between the tires and the ground;

[0003] To reduce noise, silent tires have emerged on the market. These tires adhere a highly foamed silent layer to the inside of the tire. The porous nature of these tires absorbs resonance between the tire and the road. This significantly reduces the resonant noise generated by the vehicle during operation, significantly improving driving comfort and playing a particularly important role in noise reduction for new energy vehicles.

[0004] However, when the vehicle is traveling at high speed, the tires must withstand the impact force from the ground during the high-speed rotation. The impact force will generate stress on the quiet layer, causing the quiet layer to age faster and reduce its fatigue life. Summary of the Invention

[0005] The present invention provides a low-noise tire and a manufacturing device thereof, which are used to solve the technical problem in the prior art that the tire needs to withstand impact force from the ground during high-speed rotation, and the impact force will generate stress on the quiet layer, causing the quiet layer to age faster and the fatigue life to be reduced.

[0006] On the one hand, the present invention provides a low-noise tire, including a tire body, an inner ring of the tire body is provided with an airtight layer, an end of the airtight layer away from the tire body is provided with a sealant layer, an end of the sealant layer away from the airtight layer is provided with a noise reduction layer, and an end of the noise reduction layer away from the sealant layer is provided with a plurality of grooves in an array.

[0007] Preferably, the noise reduction layer includes a film layer and a sponge layer, and the film layer is arranged between the sealant layer and the sponge layer.

[0008] Preferably, the sponge layer is a melamine sponge layer, the average pore diameter of the melamine sponge layer is 0.015-0.3 mm, and the density of the melamine sponge layer is 10-30 kg / cubic.

[0009] Preferably, the thickness of the sealant layer is 2-3.5 mm.

[0010] On the other hand, the present invention also provides a low-noise tire preparation device, including a working shell one, a working shell two is fixedly provided at the upper end of the working shell one, a working chamber one is provided at the lower end of the working shell one, a working chamber two is provided inside the working shell two, a conveyor belt mechanism is provided at the lower end of the working chamber one, heaters are symmetrically provided at the left and right ends of the working chamber one, a tire body is provided at the upper end of the conveyor belt mechanism, a sliding chamber three is penetrated through the upper end of the working shell one, the working chamber one is connected with the working chamber two through the sliding chamber three, a clamping mechanism, a coating mechanism and a pasting mechanism are provided in the working chamber one, the clamping mechanism is used to clamp the tire body, the coating mechanism and the pasting mechanism are both arranged corresponding to the tire body, the clamping mechanism is connected to the driving mechanism, and the driving mechanism is arranged in the working chamber two.

[0011] Preferably, the driving mechanism includes motor 1, which is slidably connected to the open cavity at the upper end of the working shell 2, and an electric telescopic rod 2 is fixedly provided at the upper end of the working shell 2, and the electric telescopic rod 2 is fixedly connected to the motor 1. The open cavity and the working chamber 2 are communicated with each other up and down. The motor 1 is fixedly connected to the rotating sleeve through the motor shaft 1, and the rotating sleeve is rotatably arranged in the middle of the driving platform. A rotating ring is rotatably provided at the upper end of the driving platform, and the rotating ring is slidably connected to the upper end of the working chamber 2. Guide sleeves are symmetrically provided on the left and right sides of the lower end of the driving platform, and a guide block is slidably provided in the guide cavity of the guide sleeve. The rotating sleeve is threadedly connected to the threaded rod 1, and the guide block and the threaded rod 1 are both fixedly connected to the connecting block 1. Rotating rods are symmetrically provided at the left and right ends of the connecting block 1, and the rotating rod is fixedly connected to the connecting block 3 through the connecting block 2.

[0012] Preferably, the clamping mechanism includes connecting blocks three symmetrically arranged at the left and right ends of the sliding cavity three, the upper end of the connecting block three is slidingly connected to the lower end of the driving platform, the end of the connecting block three away from the driving platform is fixedly connected to the electric telescopic rod one, the electric telescopic rod one is fixedly connected to the clamping block, and the groove of the clamping block corresponds to the tire body.

[0013] Preferably, the pasting mechanism includes a rotating wheel, the outside of which is covered with a noise reduction layer, the rotating wheel is fixedly connected to motor 2 through motor shaft 2, motor 2 is fixedly arranged inside sliding block 1, sliding block 1 is slidingly connected to sliding cavity 1, the left end of sliding block 1 is provided with rack 1, rack 1 is engaged with the gear, the gear is fixedly connected to the drive shaft, the drive shaft is fixedly connected to motor 3, the gear is rotatably arranged in the installation cavity, the installation cavity is arranged at the upper end of the installation block, the installation cavity is slidably connected to sliding cavity 1, and the installation block is fixedly arranged in sliding cavity 3.

[0014] Preferably, the coating mechanism includes a coating shell, which is slidably connected to the sliding cavity 2, and the sliding cavity 2 is connected to the installation cavity. The right end of the coating shell is fixedly provided with a rack 2, which is engaged with the gear. The interior of the coating shell is provided with a cavity 1, a glue storage cavity and a glue discharge cavity, and the glue storage cavity and the glue discharge cavity are connected up and down. A stirring rod is rotatably provided on the lower side of the glue storage cavity, and the cylindrical end of the stirring rod passes through the right end of the glue storage cavity and enters the cavity 1, and the stirring rod is fixedly connected to the pulley 2. The lower left end of the coating shell is fixedly connected to the glue discharge block. The glue outlet of the glue discharging block is connected with the glue discharging cavity, and a glue squeezing block is slidingly provided in the glue storage cavity. The upper end of the glue squeezing block is fixedly connected to the pushing rod, and the pushing rod passes through the upper end of the glue storage cavity and is fixedly connected to the sliding block 2. The sliding block 2 is slidingly connected to the cavity 1. The sliding block 2 is threadedly connected to the threaded section of the rotating shaft. The cylindrical section of the rotating shaft is slidingly connected to the bevel gear 1. The cylindrical section of the rotating shaft is fixedly connected to the bevel gear 2. The bevel gear 1 is meshed with the bevel gear 2. The bevel gear 2 is fixedly connected to the motor 4 through the telescopic spring rod.

[0015] Preferably, bevel gear 1 is rotatably connected to the horizontal end of the L-shaped plate, the horizontal end of the L-shaped plate is movably connected to the rotating shaft, the vertical end of the L-shaped plate passes through the lower end of cavity 1 and enters cavity 2 and is fixedly connected to sliding block 3, sliding block 3 is slidably connected to cavity 2, cavity 2 is arranged inside the coating shell, a spring is fixedly provided between sliding block 3 and cavity 2, the inclined end of sliding block 3 is slidably connected to the inclined end of the inclined block, the inclined block is slidably connected to cavity 2, the inclined block is rotatably connected to threaded rod 2, threaded rod 2 passes through the threaded hole connected to the right end of cavity 2 and is fixedly connected to the operating block, and the inclined block is away from the threaded rod One end of cavity 2 is fixedly connected with the control rod, the control rod passes through the left end of cavity 2 into the glue discharge cavity and is fixedly connected to the adjusting block, the adjusting block is provided with a number of through holes evenly spaced along the up and down directions, the upper and lower ends of the adjusting block are symmetrically provided with sliders, the sliders are symmetrically arranged at the upper and lower ends of the glue discharge cavity, the sliding cavity in the slider is slidably connected to the adjusting block, the vertical end of the L-shaped plate is penetrated by a sliding hole, and a connecting shaft is movably provided in the sliding hole, the connecting shaft is fixedly connected to pulley 1 and bevel gear 4, the connecting shaft is rotatably connected to the right end of cavity 1, pulley 1 is connected to pulley 2 through a conveyor belt, and bevel gear 4 is meshed with bevel gear 2.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Grooving can release the stress on the sponge layer, thereby buffering air resistance and road impact, and increasing the service life of the sponge layer. It solves the technical problem that the tire needs to withstand the impact force from the ground during high-speed rotation, which will cause stress on the silent layer, causing the silent layer to age faster and reduce fatigue life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] FIG1 is a schematic diagram of the structure of a low-noise tire provided by an embodiment of the present invention;

[0020] FIG2 is a schematic structural diagram of a low-noise tire manufacturing device provided by an embodiment of the present invention;

[0021] FIG3 is a schematic diagram of the enlarged structure of area A in FIG2 ;

[0022] FIG4 is a schematic diagram of the internal structure of the coating shell provided in an embodiment of the present invention.

[0023] Reference numerals:

[0024] 1. Tire body; 2. Airtight layer; 3. Sealant layer; 4. Noise reduction layer; 5. Conveyor belt mechanism; 6. Working shell 1; 7. Working shell 2; 8. Working chamber 1; 9. Working chamber 2; 10. Opening chamber; 11. Motor 1; 12. Driving platform; 13. Rotating ring; 14. Rotating sleeve; 15. Threaded rod 1; 16. Guide sleeve; 17. Guide chamber; 18. Guide block; 19. Connecting block 1; 20. Rotating rod; 21. Electric telescopic rod 2; 22. Electric telescopic rod 1; 23. Connecting block 3; 24. Clamping block; 25. Sliding chamber 3; 26. Mounting block; 27. Heater; 28. Rotating wheel; 29. ​​Sliding chamber 1; 30. Motor 2; 31. Sliding block 1; 32. Gear; 33. Drive Drive shaft; 34. Through hole; 35. Coating shell; 36. Glue storage cavity; 37. Motor four; 38. Bevel gear two; 39. Bevel gear one; 40. Rotating shaft; 41. Sliding block two; 42. Push rod; 43. Glue squeezing block; 44. Glue discharge cavity; 45. Glue discharge block; 46. Glue discharge port; 47. Operating block; 48. Telescopic spring rod; 49. Threaded rod two; 50. Tilting block; 51. Control rod; 52. Sliding block three; 53. Spring; 54. L-shaped plate; 55. Sliding hole; 56. Cavity one; 57. Bevel gear two; 58. Bevel gear four; 59. Pulley one; 60. Conveyor belt; 61. Pulley two; 62. Stirring rod; 63. Sliding block; 64. Sliding cavity; 65. Adjusting block; 66. Slotting. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] A low-noise tire and a manufacturing device thereof according to the present invention will be described below with reference to FIG. 1 to FIG. 4 . Example 1

[0027] A low-noise tire provided in an embodiment of the present invention, as shown in FIG1 , includes a tire body 1 , an inner ring of the tire body 1 having an airtight layer 2 , an end of the airtight layer 2 away from the tire body 1 having a sealant layer 3 , an end of the sealant layer 3 away from the airtight layer 2 having a noise reduction layer 4 , and an end of the noise reduction layer 4 away from the sealant layer 3 having a plurality of slots 66 arranged in an array.

[0028] The noise reduction layer 4 includes a film layer and a sponge layer. The film layer is arranged between the sealant layer 3 and the sponge layer. The sponge layer is a melamine sponge layer.

[0029] The average pore size of the melamine sponge layer is 0.015-0.3 mm, and the density of the melamine sponge layer is 10-30 kg / cubic;

[0030] The thickness of the sealant layer 3 is 2-3.5 mm.

[0031] The beneficial effects of the above technical solution are:

[0032] A thin film layer is added between the sealant layer 3 and the sponge layer to enhance the bonding strength between the sealant layer 3 and the sponge layer, so that the sponge layer will not shift or fall off during the continuous movement of the tire. The density of the melamine sponge layer is 10-30 kg / cubic meter, and it is ultra-light, fine-pore, has good sound absorption effect, is permanently flame-retardant, and is resistant to high temperatures of 200°C and dynamic fatigue. The grooves 66 can release the stress on the sponge layer, thereby buffering air resistance and road impact, and extending the service life of the sponge layer. This solves the technical problem that the tire needs to withstand impact force from the ground during high-speed rotation, which will cause stress on the quiet layer, resulting in accelerated aging of the quiet layer and reduced fatigue life. Example 2

[0033] On the basis of Example 1, as shown in Figures 2 to 4, a low-noise tire preparation device includes a working shell 6, a working shell 2 7 is fixedly provided on the upper end of the working shell 6, a working chamber 1 8 is provided on the lower end of the working shell 6, a working chamber 2 9 is provided inside the working shell 2 7, a conveyor belt mechanism 5 is provided on the lower end of the working chamber 8, heaters 27 are symmetrically provided on the left and right ends of the working chamber 8, a tire body 1 is provided on the upper end of the conveyor belt mechanism 5, a sliding chamber 3 25 is penetrated through the upper end of the working shell 6, the working chamber 1 8 is connected with the working chamber 2 9 through the sliding chamber 3 25, a clamping mechanism, a coating mechanism and a pasting mechanism are provided in the working chamber 8, the clamping mechanism is used to clamp the tire body 1, the coating mechanism and the pasting mechanism are both arranged corresponding to the tire body 1, the clamping mechanism is connected to the driving mechanism, and the driving mechanism is arranged in the working chamber 2 9.

[0034] The beneficial effects of the above technical solution are:

[0035] The conveyor belt mechanism 5 conveys the tire body 1 into the working chamber 8, and the driving mechanism drives the clamping mechanism to move. The clamping mechanism clamps and moves the tire body 1, and moves the tire body 1 to the corresponding positions of the coating mechanism and the pasting mechanism. The coating mechanism first coats a layer of sealant layer 3 on the inner ring of the tire body 1, and then pastes the noise reduction layer 4 on the sealant layer 3 through the pasting mechanism. The setting of the heater 27 can adjust the working temperature of the working chamber 8, facilitate the coating of the sealant layer 3 on the inner ring of the tire body 1, and paste the noise reduction layer 4 on the sealant layer 3 to obtain a low-noise tire. There is no need for manual coating and pasting steps, which avoids the poor precision of manual operation, saves manpower, and improves the preparation efficiency and production quality of low-noise tires. Example 3

[0036] On the basis of Example 2, as shown in Figures 2 to 4, the driving mechanism includes a motor 11, which is slidably connected to the open cavity 10 at the upper end of the working shell 2 7, and an electric telescopic rod 2 21 is fixedly provided on the upper end of the working shell 2 7. The electric telescopic rod 21 is fixedly connected to the motor 11, and the open cavity 10 is connected to the working chamber 2 9 up and down. The motor 11 is fixedly connected to the rotating sleeve 14 through the motor shaft 1, and the rotating sleeve 14 is rotatably arranged in the middle of the driving platform 12. The upper end of the driving platform 12 is rotatably provided with a rotating ring 13, and the rotating ring 13 is slidably connected to the upper end of the working chamber 2 9. Guide sleeves 16 are symmetrically provided on the left and right sides of the lower end of the driving platform 12, and a guide block 18 is slidably provided in the guide cavity 17 in the guide sleeve 16. The rotating sleeve 14 is threadedly connected to the threaded rod 15, and the guide block 18 and the threaded rod 15 are both fixedly connected to the connecting block 19. The left and right ends of the connecting block 19 are symmetrically provided with rotating rods 20, and the rotating rod 20 is fixedly connected to the connecting block 3 23 through the connecting block 2.

[0037] The clamping mechanism includes a connecting block three 23 symmetrically arranged at the left and right ends of the sliding cavity three 25. The upper end of the connecting block three 23 is slidably connected to the lower end of the driving platform 12. The end of the connecting block three 23 away from the driving platform 12 is fixedly connected to the electric telescopic rod one 22. The electric telescopic rod one 22 is fixedly connected to the clamping block 24. The groove of the clamping block 24 corresponds to the tire body 1.

[0038] The beneficial effects of the above technical solution are:

[0039] When the conveyor belt mechanism 5 transfers the tire body 1 to the working chamber 8, the electric telescopic rod 22 is controlled to extend. When the electric telescopic rod 22 moves to the conveyor belt mechanism 5, the motor 11 works, driving the motor shaft 1 to rotate, and the motor shaft 1 drives the rotating sleeve 14 to rotate. When the rotating sleeve 14 rotates, the threaded rod 15 moves upward, and the threaded rod 15 drives the connecting block 19 to move upward. The sliding connection between the guide block 18 and the guide chamber 17 guides the up and down movement of the connecting block 19. The connecting block 19 drives the connecting block 3 23 to move in the direction of approaching each other through the rotating rod 20. The connecting block 3 23 drives the clamping block 24 to clamp and fix the tire body 1 through the electric telescopic rod 22, and then drives the clamping block 24 to move upward through the electric telescopic rod 22 until the tire body 1 moves to the target position. At this time, the inner ring of the tire body 1 is corresponding to the pasting mechanism and the coating mechanism, and the coating mechanism, the pasting mechanism and the inner ring of the tire body 1 are controlled in turn. Contact, then control motor 11 to continue working, at this time the clamping block 24 cannot move, so the connecting block 19 and the threaded rod 15 cannot move up and down, at this time the rotating sleeve 14 drives the threaded rod 15 to rotate synchronously when it rotates, the threaded rod 15 drives the connecting block 19 to rotate, the connecting block 19 drives the connecting block three 23 to rotate through the rotating rod 20, the connecting block three 23 drives the driving platform 12 to rotate, and the rotating circle 13 guides the rotation of the driving platform 12. After obtaining the low-noise tire, the clamping block 24 is driven downward by the electric telescopic rod 22, so that the low-noise tire falls on the conveyor belt mechanism 5, and then the motor 11 is controlled to rotate in the opposite direction so that the clamping block 24 moves in the direction away from each other. The setting of the driving mechanism only requires one driving electrical motor 11 to automatically complete the clamping step and the rotation step of the tire main body 1. There is no need to set up multiple driving electrical appliances to respectively realize the clamping step and the rotation step of the tire main body 1, thereby reducing the cost. Example 4

[0040] On the basis of Example 2, as shown in Figures 2-4, the pasting mechanism includes a rotating wheel 28, the outside of the rotating wheel 28 is covered with a noise reduction layer 4, the rotating wheel 28 is fixedly connected to the motor 2 30 through the motor shaft 2, the motor 2 30 is fixedly arranged inside the sliding block 1 31, the sliding block 1 31 is slidingly connected to the sliding cavity 1 29, the left end of the sliding block 1 31 is provided with a rack 1, the rack 1 is engaged with the gear 32, the gear 32 is fixedly connected to the drive shaft 33, the drive shaft 33 passes through the mounting block 26 and the front end of the working shell 1 6 and is fixedly connected to the motor 3, the motor 3 is fixedly arranged at the front end of the working shell 1 6, the gear 32 is rotatably arranged in the mounting cavity, the mounting cavity is arranged at the upper end of the mounting block 26, the sliding cavity 1 29 is arranged on the right side of the mounting block 26, the mounting cavity is slidably connected to the sliding cavity 1 29, and the mounting block 26 is fixedly arranged in the sliding cavity 3 25.

[0041] The beneficial effects of the above technical solution are:

[0042] After the tire body 1 moves to the target position, the motor 3 is controlled to work, and the motor 3 drives the driving shaft 33 to rotate, and the driving shaft 33 drives the gear 32 to rotate. When the gear 32 rotates clockwise, it drives the rack 1 to move downward, so that the sliding block 1 31 moves downward. After the sliding block 1 31 moves to the target position corresponding to the tire body 1, the electric telescopic rod 21 is controlled to extend so that the tire body 1 clamped by the clamping block 24 contacts the noise reduction layer 4 on the rotating wheel 28, and then the motor 2 30 is started. The motor 2 30 drives the rotating wheel 28 to rotate so that the rotation direction of the rotating wheel 28 is opposite to the rotation direction of the tire body 1, and the noise reduction layer 4 is squeezed and pasted onto the sealing rubber layer 3. The length of the noise reduction layer 4 on the rotating wheel 28 is equal to the length of the sealing rubber layer 3 on the tire body 1. When replacing the tire body 1, the noise reduction layer 4 needs to be supplemented. A cutting knife can also be provided to set a sufficiently long noise reduction layer 4 on the rotating wheel 28. After the noise reduction layer 4 is pasted on the tire body 1, the noise reduction layer 4 is automatically cut off by the cutting knife. Example 5

[0043] On the basis of Example 4, as shown in Figures 2 to 4, the coating mechanism includes a coating shell 35, which is slidably connected to the sliding cavity 2, and the sliding cavity 2 is connected to the mounting cavity. The sliding cavity 1 29 is arranged on the left side of the mounting block 26, and the right end of the coating shell 35 is fixed with a rack 2, which is engaged with the gear 32. The interior of the coating shell 35 is provided with a cavity 1 56, a glue storage cavity 36 and a glue discharge cavity 44, and the glue storage cavity 36 and the glue discharge cavity 44 are connected up and down. A stirring rod 62 is rotatably provided on the lower side of the glue storage cavity 36, and the cylindrical end of the stirring rod 62 passes through the right end of the glue storage cavity 36 and enters the cavity 1 56, and the stirring rod 62 is fixedly connected to the pulley 2 61. The lower left end of the coating shell 35 is connected to the glue discharge block 45. The glue outlet 46 of the glue discharging block 45 is connected to the glue discharging cavity 44. A glue squeezing block 43 is slidably provided in the glue storage cavity 36. The upper end of the glue squeezing block 43 is fixedly connected to the push rod 42. The push rod 42 passes through the upper end of the glue storage cavity 36 and is fixedly connected to the sliding block 2 41. The sliding block 2 41 is slidably connected to the cavity 1 56. The sliding block 2 41 is threadedly connected to the threaded section of the rotating shaft 40. The rotating shaft 40 is rotatably set in the cavity 1 56. The cylindrical section of the rotating shaft 40 is slidably connected to the bevel gear 1 39. The cylindrical section of the rotating shaft 40 is fixedly connected to the bevel gear 2 57. The bevel gear 1 39 meshes with the bevel gear 2 38. The bevel gear 2 38 is fixedly connected to the motor 4 37 through the telescopic spring rod 48.

[0044] The bevel gear 1 39 is rotatably connected to the horizontal end of the L-shaped plate 54, and the horizontal end of the L-shaped plate 54 is movably connected to the rotating shaft 40. The vertical end of the L-shaped plate 54 passes through the lower end of the cavity 1 56 and enters the cavity 2 and is fixedly connected to the sliding block 3 52. The sliding block 3 52 is slidably connected to the cavity 2. The cavity 2 is arranged inside the coating shell 35. A spring 53 is fixed between the sliding block 3 52 and the cavity 2. The inclined end of the sliding block 3 52 is slidably connected to the inclined end of the tilting block 50. The tilting block 50 is slidably connected to the cavity 2. The tilting block 50 is rotatably connected to the threaded rod 2 49. The threaded rod 2 49 passes through the threaded hole connected to the right end of the cavity 2 and is fixedly connected to the operating block 47. The end of the tilting block 50 away from the threaded rod 2 49 is connected to the control The control rod 51 is fixedly connected, the control rod 51 passes through the left end of cavity two and enters the glue discharge cavity 44 and is fixedly connected to the adjusting block 65. The adjusting block 65 is provided with a number of through holes 34 evenly spaced along the up and down directions. Sliders 63 are symmetrically provided at the upper and lower ends of the adjusting block 65. The sliders 63 are symmetrically arranged at the upper and lower ends of the glue discharge cavity 44. The sliding cavity 64 in the slider 63 is slidably connected to the adjusting block 65. The vertical end of the L-shaped plate 54 is penetrated by a sliding hole 55. A connecting shaft is movably provided in the sliding hole 55. The connecting shaft is fixedly connected to pulley one 59 and bevel gear four 58. The connecting shaft is rotatably connected to the right end of cavity one 56. Pulley one 59 is connected to pulley two 61 through a conveyor belt 60, and bevel gear four 58 is engaged with bevel gear two 57.

[0045] The beneficial effects of the above technical solution are:

[0046] When the gear 32 rotates counterclockwise, it drives the rack 2 to move downward, thereby causing the coating shell 35 to move downward, and then controls the electric telescopic rod 21 to retract, so that the tire body 1 clamped by the clamping block 24 contacts the glue discharging block 45. When preparing a low-noise tire, the glue discharging block 45 should first contact the tire body 1, and then the tire body 1 should contact the noise reduction layer 4 on the rotating wheel 28. The setting of the gear 32 ensures that when the coating shell 35 moves downward and the sliding block 1 moves upward, it ensures that the pasting mechanism is not in the inner ring of the tire body 1 when the coating mechanism is working, so that the coating mechanism and the pasting mechanism work independently and do not interfere with each other.

[0047] When the motor 4 37 is working, it drives the telescopic spring rod 48 to rotate, the telescopic spring rod 48 drives the bevel gear 2 38 to rotate, the bevel gear 2 38 drives the bevel gear 1 39 and the bevel gear 2 57 to rotate, the bevel gear 1 39 drives the rotating shaft 40 to rotate, and when the rotating shaft 40 rotates, the sliding block 2 41 slides downward along the cavity 1 56, and the sliding block 2 41 drives the glue squeezing block 43 to move through the push rod 42, and the glue squeezing block 43 slides downward along the glue storage cavity 36, and the glue squeezing block 43 pushes the glue in the glue storage cavity 36 through the glue outlet cavity 44 is squeezed into the glue outlet 46, and the glue outlet 46 contacts the inner ring of the tire body 1, and the glue is applied to the inner ring of the tire body 1 to obtain the sealing glue layer 3. When the bevel gear 2 57 rotates, it drives the bevel gear 4 58 to rotate, and the bevel gear 4 58 drives the connecting shaft to rotate, and the connecting shaft drives the pulley 1 59 to rotate. The pulley 1 59 drives the pulley 2 61 to rotate through the conveyor belt 60, and the pulley 2 61 drives the stirring rod 62 to rotate. When the stirring rod 62 rotates, it stirs the glue in the glue storage chamber 36 to prevent the glue from solidifying.

[0048] The operating block 47 is rotated, and the operating block 47 drives the threaded rod 2 49 to rotate. The threaded rod 2 49 moves along the threaded hole, driving the tilting block 50 to move. When the tilting block 50 moves, it pushes the sliding block 3 52 to move up and down. The sliding block 3 52 drives the L-shaped plate 54 to move up and down, and the spring 53 is deformed. The L-shaped plate 54 drives the bevel gear 1 39 to move up and down. When the bevel gear 1 39 moves up and down, it pushes the bevel gear 2 38 to move left and right. The bevel gear 2 38 drives the telescopic spring rod 48 to deform, thereby changing the rotation speed of the bevel gear 1 39. When the rotation speed of the bevel gear 1 39 changes, the rotation speed of the rotating shaft 40 changes, thereby changing The moving speed of the glue squeezing block 43 and the rotation speed of the stirring rod 62 are changed, and when the tilting block 50 moves, it drives the control rod 51 to move, and the control rod 51 drives the adjusting block 65 to move, and the adjusting block 65 drives the slider 63 to slide along the inclined end of the glue discharge cavity 44, so that the adjusting block 65 and the sliding cavity 64 slide, thereby changing the number of through holes 34 in the glue discharge cavity 44, thereby changing the glue discharge amount of the glue discharge cavity 44, so that the glue discharge amount of the glue discharge cavity 44 is the same as the glue amount pushed from the glue discharge port 46 by the glue squeezing block 43, thereby changing the glue discharge amount of the glue discharge port 46. When adjusting the glue discharge amount of the glue discharge port 46, it is only necessary to rotate the operating block 47.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A low-noise tire, characterized in that, It includes a tire body (1). An airtight layer (2) is provided on the inner ring of the tire body (1). A sealing rubber layer (3) is provided at one end of the airtight layer (2) away from the tire body (1). A noise reduction layer (4) is provided at one end of the sealing rubber layer (3) away from the airtight layer (2). A number of slots (66) are arrayed at one end of the noise reduction layer (4) away from the sealing rubber layer (3).

2. A low-noise tire according to claim 1, characterized in that, The noise reduction layer (4) includes a film layer and a sponge layer. The film layer is arranged between the sealing rubber layer (3) and the sponge layer.

3. The low-noise tire according to claim 2, wherein The sponge layer is a melamine sponge layer. The average pore diameter of the melamine sponge layer is 0.015 - 0.3 mm, and the density of the melamine sponge layer is 10 - 30 kg / cubic meter.

4. A low-noise tire according to claim 1, characterized in that, The thickness of the sealing rubber layer (3) is 2 - 3.5 mm.

5. A preparation device for a low-noise tire according to any one of claims 1-4, characterized in that, It includes a first working shell (6). A second working shell (7) is fixedly provided at the upper end of the first working shell (6). A first working cavity (8) is provided at the lower end of the first working shell (6). A second working cavity (9) is provided inside the second working shell (7). A conveyor belt mechanism (5) is provided at the lower end of the first working cavity (8). Heaters (27) are symmetrically provided at the left and right ends of the first working cavity (8). The tire body (1) is provided at the upper end of the conveyor belt mechanism (5). A third sliding cavity (25) is provided through the upper end of the first working shell (6). The first working cavity (8) communicates with the second working cavity (9) through the third sliding cavity (25). A clamping mechanism, a coating mechanism and a pasting mechanism are provided in the first working cavity (8). The clamping mechanism is used to clamp the tire body (1). The coating mechanism and the pasting mechanism are both arranged corresponding to the tire body (1). The clamping mechanism is connected to a driving mechanism. The driving mechanism is arranged in the second working cavity (9).

6. The preparation device of the low-noise tire according to claim 5, characterized in that, The driving mechanism includes a first motor (11). The first motor (11) is slidably connected to an opening cavity (10) at the upper end of the second working shell (7). An electric telescopic rod two (21) is fixedly provided at the upper end of the second working shell (7). The electric telescopic rod two (21) is fixedly connected to the first motor (11). The opening cavity (10) communicates with the second working cavity (9) up and down. The first motor (11) is fixedly connected to a rotating sleeve (14) through a first motor shaft. The rotating sleeve (14) is rotatably arranged in the middle of a driving platform (12). A rotating ring (13) is rotatably provided at the upper end of the driving platform (12). The rotating ring (13) is slidably connected to the upper end of the second working cavity (9). Guide sleeves (16) are symmetrically provided at the left and right sides of the lower end of the driving platform (12). Guide blocks (18) are slidably arranged in guide cavities (17) in the guide sleeves (16). The rotating sleeve (14) is threadedly connected to a first threaded rod (15). The guide blocks (18) and the first threaded rod (15) are both fixedly connected to a first connecting block (19). Rotating rods (20) are symmetrically provided at the left and right ends of the first connecting block (19). The rotating rods (20) are fixedly connected to a third connecting block (23) through a second connecting block.

7. The preparation device for a low-noise tire according to claim 6, characterized in that, The clamping mechanism includes connecting blocks III (23) symmetrically arranged at the left and right ends of the sliding cavity III (25). The upper ends of the connecting blocks III (23) are slidably connected to the lower end of the driving platform (12). The end of the connecting block III (23) away from the driving platform (12) is fixedly connected to the electric telescopic rod I (22). The electric telescopic rod I (22) is fixedly connected to the clamping block (24). The groove of the clamping block (24) corresponds to and cooperates with the tire body (1).

8. The manufacturing apparatus of the low-noise tire according to claim 5, characterized in that, The pasting mechanism includes a rotating wheel (28). The outer part of the rotating wheel (28) is coated with a noise reduction layer (4). The rotating wheel (28) is fixedly connected to the motor II (30) through the motor shaft II. The motor II (30) is fixedly arranged inside the sliding block I (31). The sliding block I (31) is slidably connected to the sliding cavity I (29). A rack I is provided at the left end of the sliding block I (31). The rack I meshes with the gear (32). The gear (32) is fixedly connected to the driving shaft (33). The driving shaft (33) is fixedly connected to the motor III. The gear (32) is rotatably arranged in the installation cavity. The installation cavity is arranged at the upper end of the installation block (26). The installation cavity is slidably connected to the sliding cavity I (29). The installation block (26) is fixedly arranged in the sliding cavity III (25).

9. The preparation device of the low-noise tire according to claim 8, characterized in that, The coating mechanism includes a coating shell (35). The coating shell (35) is slidably connected to the sliding cavity II. The sliding cavity II communicates with the installation cavity. A rack II is fixedly provided at the right end of the coating shell (35). The rack II meshes with the gear (32). A cavity I (56), a glue storage cavity (36) and a glue outlet cavity (44) are provided inside the coating shell (35). The glue storage cavity (36) and the glue outlet cavity (44) communicate with each other vertically. A stirring rod (62) is rotatably arranged below the glue storage cavity (36). The cylindrical end of the stirring rod (62) penetrates through the right end of the glue storage cavity (36) and enters the cavity I (56). The stirring rod (62) is fixedly connected to the belt pulley II (61). The lower left side of the coating shell (35) is fixedly connected to the glue outlet block (45). The glue outlet (46) of the glue outlet block (45) communicates with the glue outlet cavity (44). A glue extrusion block (43) is slidably arranged in the glue storage cavity (36). The upper end of the glue extrusion block (43) is fixedly connected to the push rod (42). The push rod (42) penetrates through the upper end of the glue storage cavity (36) and is fixedly connected to the sliding block II (41). The sliding block II (41) is slidably connected to the cavity I (56). The sliding block II (41) is threadedly connected to the threaded section of the rotating shaft (40). The cylindrical section of the rotating shaft (40) is slidably connected to the bevel gear I (39). The cylindrical section of the rotating shaft (40) is fixedly connected to the bevel gear II (57). The bevel gear I (39) meshes with the bevel gear II (38). The bevel gear II (38) is fixedly connected to the motor IV (37) through the telescopic spring rod (48).

10. The preparation device of the low-noise tire according to claim 9, characterized in that, The bevel gear one (39) is rotationally connected to the horizontal end of the L-shaped plate (54). The horizontal end of the L-shaped plate (54) is movably connected to the rotating shaft (40). The vertical end of the L-shaped plate (54) penetrates through the lower end of the cavity one (56) and enters the cavity two, and is fixedly connected to the sliding block three (52). The sliding block three (52) is slidably connected to the cavity two. The cavity two is arranged inside the coating shell (35). A spring (53) is fixedly arranged between the sliding block three (52) and the cavity two. The inclined end of the sliding block three (52) is slidably connected to the inclined end of the inclined block (50). The inclined block (50) is slidably connected to the cavity two. The inclined block (50) is rotationally connected to the threaded rod two (49). The threaded rod two (49) passes through the threaded hole communicated with the right end of the cavity two and is fixedly connected to the operation block (47). One end of the inclined block (50) away from the threaded rod two (49) is fixedly connected to the control rod (51). The control rod (51) penetrates through the left end of the cavity two and enters the glue outlet cavity (44), and is fixedly connected to the adjusting block (65). A plurality of through holes (34) are evenly arranged at intervals in the up and down direction on the adjusting block (65). Sliders (63) are symmetrically arranged at the upper and lower ends of the adjusting block (65). The sliders (63) are symmetrically arranged at the upper and lower ends of the glue outlet cavity (44). The sliding cavity (64) in the slider (63) is slidably connected to the adjusting block (65). A sliding hole (55) is penetrated through the vertical end of the L-shaped plate (54). A connecting shaft is movably arranged in the sliding hole (55). The connecting shaft is fixedly connected to the pulley one (59) and the bevel gear four (58). The connecting shaft is rotationally connected to the right end of the cavity one (56). The pulley one (59) is connected to the pulley two (61) through a conveyor belt (60). The bevel gear four (58) is meshed with the bevel gear two (57).

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