Tire mute cotton pressing device

Abstract

The invention discloses a tire mute cotton pressing device, and relates to the technical field of production of pneumatic tires or parts thereof, the tire mute cotton pressing device comprises a rack, a rolling mechanism is arranged on the rack, a stand column is vertically arranged on one side of the rack, a support arm is slidably arranged on the stand column, a pressing cylinder is vertically arranged, the upper end of the pressing cylinder is arranged at the free end of the support arm, and the lower end of the pressing cylinder is arranged at the free end of the support arm. The lower end of the pressing roller is connected with a pressing roller frame, and a pressing roller is rotationally arranged on the pressing roller frame; when the pressing device is used, a tire with mute cotton attached to the inner circumferential face is vertically placed on the rolling mechanism, the free end of the supporting arm extends to the tire, a piston rod of the pressing air cylinder extends out, the pressing roller frame drives the pressing roller to press the mute cotton on the inner circumferential face of the tire, the rolling mechanism drives the tire to roll, and the pressing roller evenly rolls the mute cotton till pressing is completed. The structure is simple, and the manufacturing cost is low; for tires with different diameters, the axes of the tires do not need to be determined, only the gap between the pressing roller and the rolling mechanism needs to be adjusted, time and labor are saved, and the production efficiency is high.

Description

Technical Field

[0001] The invention relates to the production of pneumatic tires or parts thereof, in particular to a tire silent cotton pressing device. Background Art

[0002] With the rapid development of new energy vehicles, low-noise motors have gradually replaced fuel engines, and tire noise has become the main source of vehicle noise. In order to further reduce noise and improve driving comfort, silent tires have become a new research and development direction for various tire manufacturers.

[0003] At present, the industry generally adopts the technical solution of sticking sound-absorbing materials to the inner surface of the tire to reduce tire noise. For example, a noise-reducing tire is disclosed in the Chinese utility model with application number 202220384536.8, which includes a tire body, a noise-reducing component and an adhesive. The noise-reducing component is set on the inner surface of the tire body by an adhesive to achieve tire silent performance.

[0004] In order to improve production efficiency, the attachment and pressing of the silent cotton on the inner surface of the tire needs to be mechanized. For example, in the Chinese invention patent application with application number 202210528707.4, a tire automatic cotton sticking device is disclosed, which includes a fixing device for fixing the tire, the fixing device is installed on the mobile device, and a rolling device is provided on one side of the mobile device, the rolling device includes a rolling frame, a rolling seat, a rolling station cylinder, a rolling motor, a rolling plate, a rolling cylinder, a rolling bracket and a roller. Among them, the rolling frame includes a rolling bottom plate, a rolling top plate, and a rolling column. The rolling bottom plate is fixed on the top of the frame, and the rolling bottom plate is located on one side of one end of the mobile bottom plate; there are four rolling columns, and the two ends of the rolling columns are respectively connected to the rolling bottom plate and the rolling top plate. Two rolling linear guide pairs are symmetrically installed on the rolling top plate, and the rolling seat is installed on the slider of the rolling linear guide pair. The rolling station cylinder is a rodless cylinder, and the rodless cylinder reduces the length. The roller press station cylinder is fixed on the roller press top plate and connected to the roller press seat. The roller press motor is installed on the roller press seat through the motor seat, and the roller press motor is a reduction motor. In order to protect the roller press motor, the roller press motor is connected to the roller press plate through a coupling, a roller press shaft and a roller press bearing seat. The roller press bearing seat is installed on the roller press seat. The roller press shaft is fixed on the roller press bearing seat and connected to the roller press motor through a coupling. The roller press plate is fixed to the other end of the roller press shaft. The radial force is borne by the roller press shaft and the roller press bearing seat, which reduces the radial force of the roller press motor. The roller press cylinder is a slide cylinder, and there are two roller press cylinders. The roller press cylinders are fixed on the roller press plate and located on both sides of the center of the roller press plate. The piston rods of the two roller press cylinders extend to both sides of the roller press plate respectively. The roller press bracket is a U-shaped bracket. The roller press bracket is fixed on the slide of the roller press cylinder. The roller wheel is rotatably installed on the roller press bracket, and the two roller wheels are symmetrically located on both sides of the axis of the roller press motor. The connecting line of the centers of the two roller wheels also coincides with the axis of the roller press motor. The roller pressing column is used to adjust the height of the roller pressing top plate, so that the axis of the roller pressing motor coincides with the axis of the tire, and then the two rollers rotate around the axis of the tire to achieve rolling of the silencer cotton. Obviously, in the disclosed technical solution, the roller pressing device rotates on the inner surface of the tire to achieve rolling of the silencer cotton, and the entire outer surface of the tire needs to be clamped and fixed, which has a complex structure and high manufacturing cost. In addition, when performing cotton pressing operations on tires of different diameters, it is difficult to determine the axis of the tire, and adjusting the roller pressing motor to accurately coincide with the axis of the tire is time-consuming and labor-intensive, and the production efficiency is low.

[0005] People are in urgent need of a tire silent cotton pressing device with simple structure, low manufacturing cost and high production efficiency. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, such as complex structure and high production cost, the utility model provides a tire silent cotton pressing device with simple structure, low manufacturing cost and high production efficiency.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a tire silent cotton pressing device, which includes a frame, characterized in that a rolling mechanism is provided on the frame; a column is vertically provided on one side of the frame, a support arm is slidably provided on the column, a pressing cylinder is vertically provided, the upper end of which is provided on the free end of the support arm, and the lower end of which is connected to a pressing roller frame, and a pressing roller is rotatably provided on the pressing roller frame; The rolling mechanism includes a rolling motor, a rolling transmission assembly, a driving roller and two supporting rollers. The rolling motor is arranged on a frame. The driving roller is supported on the top of the frame for rotation parallel to the axis of the support arm. The two supporting rollers are supported in parallel on both sides of the driving roller. The rolling transmission assembly connects the rolling motor and the driving roller.

[0008] Preferably, a pressure roller guide sleeve is provided on the pressing cylinder, and a pressure roller guide rod is provided on the pressing roller frame along the axial direction of the pressing cylinder. The pressure roller guide rod extends into the pressure roller guide sleeve and is limited and slid by the pressure roller guide sleeve.

[0009] Preferably, the rolling transmission assembly includes a driving sprocket, a driven sprocket and a chain, the driving sprocket is arranged at the output end of the rolling motor, the driven sprocket is arranged at the end of the driving roller, and the chain is rotatably assembled on the driving sprocket and the driven sprocket.

[0010] Preferably, the present invention further comprises a positioning mechanism, which comprises a positioning bracket, a positioning adjustment component and a positioning roller, wherein the positioning bracket is arranged on a frame via the positioning adjustment component, and the positioning roller is rotatably supported on the positioning bracket.

[0011] Preferably, the alignment adjustment assembly includes an alignment slider and a limiting bolt, the alignment slider is slidably disposed on the frame, and the limiting bolt locks or unlocks the alignment slider.

[0012] Preferably, the present invention also includes a lifting mechanism, which includes a lifting motor, a lifting screw and a lifting nut, the lifting screw is vertically arranged on the column via a lifting seat, the output shaft of the lifting motor is connected to the lifting screw, the lifting nut is threadedly connected to the lifting screw and fixedly connected to the support arm.

[0013] Preferably, a travel switch is provided on the lifting seat.

[0014] The present invention comprises a frame, a rolling mechanism is arranged on the frame, a column is vertically arranged on one side of the frame, a support arm is slidably arranged on the column, a pressing cylinder is vertically arranged, the upper end of the cylinder is arranged on the free end of the support arm, the lower end of the cylinder is connected to a pressure roller frame, and a pressure roller is rotatably arranged on the pressure roller frame; when in use, the tire with the silent cotton attached to the inner circumference is vertically placed on the rolling mechanism, the free end of the support arm extends toward the tire, the piston rod of the pressing cylinder extends, the pressure roller frame drives the pressure roller to press tightly on the silent cotton on the inner circumference of the tire, the rolling mechanism drives the tire to roll, and the pressure roller uniformly rolls the silent cotton until the pressing is completed. Compared with the existing pressing device, the structure is simple and the manufacturing cost is low; for tires with different diameters, there is no need to determine the tire axis, and only the distance between the pressure roller and the rolling mechanism needs to be adjusted, which saves time and labor and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural stereoscopic schematic diagram of the present invention; Figure 2 yes Figure 1 Left view of Figure 3 yes Figure 2 A magnified partial view of point A in the middle.

[0016] Markings in the figure: 1. Frame, 2. Rolling mechanism, 3. Column, 4. Support arm, 5. Pressing cylinder, 6. Pressing roller frame, 7. Pressing roller, 8. Rolling motor, 9. Rolling transmission assembly, 10. Driving roller, 11. Support roller, 12. Silent cotton, 13. Tire, 14. Driving sprocket, 15. Driven sprocket, 16. Chain, 17. Protective cover, 18. Pressing roller guide sleeve, 19. Pressing roller guide rod, 20. Alignment mechanism, 21. Alignment bracket, 22. Alignment adjustment assembly, 23. Alignment roller, 24. Alignment slider, 25. Limit bolt, 26. Threaded hole, 27. Lifting mechanism, 28. Lifting motor, 29. Lifting screw, 30. Lifting nut, 31. Lifting seat, 32. Travel switch. Implementation

[0017] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0018] like Figure 1 As shown, a tire silent cotton pressing device comprises a frame 1 on which a rolling mechanism 2 is arranged.

[0019] A column 3 is vertically provided on one side of the frame 1, and a support arm 4 is slidably provided on the column 3. A pressing cylinder 5 is vertically provided, and its upper end is provided on the free end of the support arm 4, and its lower end is connected to a pressure roller frame 6, and a pressure roller 7 is rotatably provided on the pressure roller frame 6.

[0020] like Figure 1 , Figure 2As shown, the rolling mechanism 2 includes a rolling motor 8, a rolling transmission assembly 9, a driving roller 10 and two supporting rollers 11, wherein the rolling motor 8 is arranged on the frame 1, the driving roller 10 is supported on the top of the frame 1 along an axial rotation parallel to the support arm 4, the two supporting rollers 11 are supported in parallel on both sides of the driving roller 10, and the rolling transmission assembly 9 connects the rolling motor 8 and the driving roller 10.

[0021] When in use, the tire 13 with the silent cotton 12 on the inner circumference is placed vertically on the rolling mechanism 2, and its outer circumference is respectively in contact with the driving roller 10 and the two supporting rollers 11, and the free end of the support arm 4 is extended toward the tire 13, so that the pressure roller 7 corresponds to the inner circumference of the tire 13; the piston rod of the pressing cylinder 5 is controlled to extend, and the pressure roller frame 6 drives the pressure roller 7 to press on the silent cotton 12 on the inner circumference of the tire 13; the rolling motor 8 is started, and the driving roller 10 is driven to rotate through the rolling transmission component 9. The driving roller 10 drives the tire 13 to rotate under the support of the supporting rollers 11 through friction, so that the pressure roller 7 evenly rolls the silent cotton 12 until the pressing is completed and all components are reset.

[0022] The rolling mechanism 2 can be driven by a variety of transmission forms such as gear transmission and belt transmission. In this embodiment, the rolling transmission component 9 preferably has a chain transmission structure with accurate transmission ratio and reliable operation, that is, the rolling transmission component 9 includes a driving sprocket 14, a driven sprocket 15 and a chain 16. Figure 1 As shown, the driving sprocket 14 is arranged at the output end of the rolling motor 8, the driven sprocket 15 is arranged at the end of the driving roller 10, and the chain 16 is rotatably assembled on the driving sprocket 14 and the driven sprocket 15.

[0023] In order to reduce the mixing of impurities and ensure the safety of personnel, Figure 1 As shown, a protective cover 17 is provided on the frame 1 outside the rolling transmission assembly 9.

[0024] To prevent the pressure roller 7 from being subjected to force through the pressure roller frame 6 to drive the piston rod of the pressing cylinder 5 to rotate, as shown in FIG. Figure 1 , Figure 2 As shown, a pressure roller guide sleeve 18 is provided on the pressing cylinder 5, and a pressure roller guide rod 19 is provided on the pressure roller frame 6 along the axial direction of the pressing cylinder 5. The pressure roller guide rod 19 extends into the pressure roller guide sleeve 18 and is limited and slid by the pressure roller guide sleeve 18.

[0025] like Figure 1 , Figure 2As shown in the figure, the present invention further includes an alignment mechanism 20, which is used to assist in supporting the tire 13, making the tire 13 stand upright on the rolling mechanism 2 and maintaining the rolling continuity. In this embodiment, there are two groups of alignment mechanisms 20. Each group of alignment mechanisms 20 includes an alignment bracket 21, an alignment adjustment assembly 22, and an alignment roller 23. Among them, the two alignment brackets 21 are symmetrically arranged on the frame 1 along the radial direction of the tire 13 through the corresponding alignment adjustment assemblies 22, and the two alignment rollers 23 are rotatably supported on the corresponding alignment brackets 21. During use, the tire 13 is placed vertically on the rolling mechanism 2. By adjusting the position of the alignment bracket 21 on the frame 1 through the alignment adjustment assembly 22, the alignment roller 23 is pressed against the sidewall of the tire 13, restricting the axial movement of the tire 13 during rolling.

[0026] It should be further noted that the alignment adjustment assembly 22 can be connected to the alignment bracket 21 and the frame 1 in various ways. In this embodiment, as Figure 3 shown, the alignment adjustment assembly 22 includes an alignment slider 24 and a limit bolt 25. The top of the frame 1 is supported and connected by a square tube. The alignment slider 24 is in a U-shaped shape and slides along the axial direction of the square tube. A threaded hole 26 is opened on the side wall of the alignment slider 24. The limit bolt 25 is screwed into the threaded hole 26 and presses against the square tube to lock the alignment slider 24.

[0027] As Figure 1 shown, the present invention further includes a lifting mechanism 27, which is used to lift and lower the support arm 4 over a large range. While assisting the pressing cylinder 5 to adjust the pressing force, the present invention is applicable to tires 13 of different specifications. In this embodiment, the lifting mechanism 27 includes a lifting motor 28, a lifting lead screw 29, and a lifting nut 30. Among them, the lifting lead screw 29 is vertically arranged on the column 3 through a lifting seat 31. The output shaft of the lifting motor 28 is connected to the lifting lead screw 29. The lifting nut 30 is threadedly connected to the lifting lead screw 29 and is fixedly connected to the support arm 4. The lifting motor 28 drives the lifting lead screw 29 to rotate, and then the lifting nut 30 moves along the axial direction of the lifting lead screw 29, driving the support arm 4 to move up and down.

[0028] To prevent the support arm 4 from moving up and down beyond the limit, as Figure 1 shown, a travel switch 32 is provided on the lifting seat 31. When the support arm 4 touches the travel switch 32, the lifting motor 28 immediately stops rotating, aborting the up and down movement of the support arm 4.

[0029] When the present invention is in use, a tire 13 with sound-absorbing cotton 12 on the inner circumference is placed vertically on the rolling mechanism 2, the free end of the support arm 4 extends toward the tire 13, the piston rod of the pressing cylinder 5 extends, and the pressing roller frame 6 drives the pressing roller 7 to press tightly on the sound-absorbing cotton 12 on the inner circumference of the tire 13. The rolling mechanism 2 drives the tire 13 to roll, and the pressing roller 7 evenly rolls the sound-absorbing cotton 12 until the pressing is completed. Compared with the existing pressing device, the structure is simple and the manufacturing cost is low. For tires of different diameters, there is no need to determine the axis of the tire 13, and only the distance between the pressing roller 7 and the rolling mechanism 2 needs to be adjusted, which saves time and labor and has high production efficiency.

Claims

1. A tire silent cotton pressing device, comprising a frame, characterized in that: A rolling mechanism is provided on the frame; a column is vertically provided on one side of the frame, a support arm is slidably provided on the column, a pressing cylinder is vertically provided, the upper end of the cylinder is provided on the free end of the support arm, and the lower end of the cylinder is connected to a pressing roller frame, and a pressing roller is rotatably provided on the pressing roller frame; The rolling mechanism includes a rolling motor, a rolling transmission assembly, a driving roller and two supporting rollers. The rolling motor is arranged on a frame. The driving roller is supported on the top of the frame for rotation parallel to the axis of the support arm. The two supporting rollers are supported in parallel on both sides of the driving roller. The rolling transmission assembly connects the rolling motor and the driving roller.

2. A tire silent cotton pressing device according to claim 1, characterized in that: A pressure roller guide sleeve is arranged on the pressing cylinder, and a pressure roller guide rod is arranged on the pressing roller frame along the axial direction of the pressing cylinder. The pressure roller guide rod extends into the pressure roller guide sleeve and is limited and slid by the pressure roller guide sleeve.

3. A tire silent cotton pressing device according to claim 1, characterized in that: The rolling transmission assembly comprises a driving sprocket, a driven sprocket and a chain. The driving sprocket is arranged at the output end of the rolling motor, the driven sprocket is arranged at the end of the driving roller, and the chain is rotatably assembled on the driving sprocket and the driven sprocket.

4. A tire silent cotton pressing device according to claim 1, characterized in that: It also includes a positioning mechanism, which includes a positioning bracket, a positioning adjustment component and a positioning roller. The positioning bracket is arranged on the frame through the positioning adjustment component, and the positioning roller is rotatably supported on the positioning bracket.

5. A tire silent cotton pressing device according to claim 4, characterized in that: The alignment adjustment assembly comprises an alignment slider and a limiting bolt. The alignment slider is slidably arranged on the frame, and the limiting bolt locks or unlocks the alignment slider.

6. A tire silent cotton pressing device according to claim 1, characterized in that: It also includes a lifting mechanism, which includes a lifting motor, a lifting screw and a lifting nut. The lifting screw is vertically arranged on the column via a lifting seat, the output shaft of the lifting motor is connected to the lifting screw, and the lifting nut is threadedly connected to the lifting screw and fixedly connected to the support arm.

7. A tire silent cotton pressing device according to claim 6, characterized in that: A travel switch is arranged on the lifting seat.

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