Horizontal rubber core cold laminating machine for engineering giant tire

Abstract

The utility model relates to a horizontal rubber core cold paste for an engineering giant tire, and belongs to the field of tire production equipment. A fixing large disc is connected to the attaching function fixing support, a large disc rotating main shaft is installed in the middle of the upper portion of the fixing large disc, a synchronous belt rotating driving device linked with the large disc rotating main shaft is installed on the lower portion of the fixing large disc, and the synchronous belt rotating driving device is driven by a motor speed reducer installed on the base. A rotary sealing device is installed below the large-disc rotating main shaft and provides air source power for a ring supporting device air cylinder, the upper half portion of the large-disc rotating main shaft is connected with a lower rotating large disc, and eight distance adjusting devices are installed on the lower rotating large disc at equal intervals. The distance adjusting device is provided with eight sets of ring supporting device air cylinders with driving ring supporting devices, a pressing function fixing support is fixedly installed in the middle of the left side of the machine base frame, a set of pressing roller adjusting device is installed above the pressing roller machine base, the position of the pressing roller device can be adjusted, and the pressing roller adjusting device comprises a pressing roller lifting device and a pressing roller angle adjusting device.

Description

Technical Field

[0001] The utility model relates to the field of tire production equipment, and particularly to a horizontal rubber core cold pasting machine for engineering giant tires. Background Art

[0002] As is well known, in the field of tire production and manufacturing, the composition of a tire includes components such as a tread, a carcass, a sidewall, and a bead. All vehicle loads are borne by the tire mounted on the rim. The bead is the part where the tire contacts the rim, and the quality of the bead plays an important role in the dynamic balance performance and service life of the tire. Due to the characteristics of large size and heavy weight of the bead of engineering meridian tires and giant tires, the traditional production and manufacturing process is a hot pasting type or a capsule reverse wrapping type. As a result, due to design defects in the production process of the bead rubber core pasting, the bonding quality between the rubber core produced by the capsule reverse wrapping process and the steel wire ring is poor. Although the bonding quality between the hot rubber core produced by the hot pasting process and the cold steel wire ring has been improved, the rubber core is large and the temperature is high. After the pasting is completed, due to the large difference in the cooling shrinkage ratio between the steel wire ring and the rubber core, the bonding between the rubber core and the steel wire ring is not tight. Because the bead part is in close contact with the rim and the force is very large, the poor bonding between the rubber core and the steel wire ring at the heel part causes defects such as detachment and air bubbles. During the use of the tire, the heel generates a large amount of heat. When the heat accumulates to a certain extent, the performance is reduced and the tire is damaged early. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a horizontal rubber core cold pasting machine for engineering giant tires, which can solve the problem of poor bonding quality between the rubber core and the steel wire ring, improve the tightness and stability of the bonding quality between the rubber core and the steel wire ring, improve the bead quality, and avoid the problems of performance reduction and early tire damage caused by the poor bonding between the rubber core and the steel wire ring.

[0004] The technical solution adopted by the present utility model to solve its technical problems is as follows: An engineering giant tire horizontal rubber core cold pasting and laminating machine is provided with a machine base. A fixed rubber core laminating and rotating device and a pressing device for fixing the rubber core laminating are fixed on the machine base. The characteristics are that the fixed rubber core laminating and rotating device includes a laminating function fixed bracket fixedly installed on the right side of the machine base. A fixed large disc is connected to the laminating function fixed bracket. A large disc rotating main shaft is installed in the middle of the upper part of the fixed large disc. A synchronous belt rotating drive device linked to the large disc rotating main shaft is installed at the lower part of the fixed large disc. The synchronous belt rotating drive device is driven by a motor reducer installed on the base. A rotating sealing device is installed below the large disc rotating main shaft to provide air source power for the support ring cylinder. The upper half of the large disc rotating main shaft is connected to the lower rotating large disc. Eight sets of distance adjusting devices are equally installed on the upper surface of the lower rotating large disc. Eight sets of support ring cylinders with driving support ring devices are installed on the distance adjusting devices. Under the action of the support ring cylinders, the support ring device can perform linear reciprocating motion in the eight groups of evenly distributed support ring moving positioning guide grooves on the upper rotating large disc. The lower rotating large disc and the upper rotating large disc are connected through a rotating large disc connecting plate to realize the synchronous rotating motion of the upper and lower rotating large discs. The pressing device for fixing the rubber core laminating includes a pressing function fixed bracket fixedly installed at the middle position on the left side of the machine base frame. The pressing function fixed bracket is connected to the pressing roller base. A set of pressing roller adjusting devices is installed above the pressing roller base to adjust the position of the pressing roller device. The pressing roller adjusting device includes a pressing roller lifting device and a pressing roller angle adjusting device. Above the pressing roller base, it is connected to the pressing roller fixed bracket through a guide rail installation plate, a pressing roller height adjusting fixed wire. The pressing roller device is connected to the pressing roller fixed bracket through the pressing roller lifting device and the pressing roller angle adjusting device.

[0005] The described rotating sealing device uses double bearings for support and divides the sealing rings, converting the air source transmission path direction into a 360° dead - free angle.

[0006] A large disc rotating auxiliary support wheel is provided between the lower rotating large disc and the fixed large disc. The fixed shaft of the auxiliary support wheel adopts an eccentric shaft structure.

[0007] The described distance adjusting device consists of eight sets of distance adjusting device bearing seats of the same model, a distance adjusting lead screw with a movable wrench, a distance adjusting nut fixing device, and a small bevel gear. The small bevel gear meshes synchronously with the large bevel gear. Under the action of the rotation design of the large bevel gear transmission shaft, the diameter of the support ring device can be automatically adjusted by a servo - motor - driven automatic adjustment device, or any one distance adjusting device can be manually adjusted to drive the other seven sets of distance adjusting devices to move synchronously.

[0008] The described pressing roller adjusting device consists of a linear guide rail pair, a roller adjusting bearing seat, a pressing roller adjusting nut, a pressing roller adjusting lead screw, and an adjusting handwheel installed at the end of the pressing roller adjusting lead screw.

[0009] The described press roller angle adjustment device consists of a handle, a lead screw, a nut, a fixed seat, a connecting plate and a pin shaft. Rotating the handle with the pin shaft of the connecting plate and the press roller fixed bracket as the center drives the nut to rotate and move, driving the press roller lifting device and the press roller device to make forward and backward angle adjustments.

[0010] The described press roller device consists of a press roller, a bracket, a pin shaft, a bearing and an adjusting sleeve. The surface of the press roller is processed with a curve matching the shape of the rubber core.

[0011] The described drive motor reducer is a servo motor and can set parameters such as the rotation speed and positioning angle on the touch screen of the operation cabinet.

[0012] The beneficial effects of the present utility model are as follows: effectively solving the problems of poor bonding quality and loose bonding between the rubber core and the bead caused by the traditional production and manufacturing processes of hot pasting or capsule reverse wrapping, further improving the tightness and stability of the bonding quality between the rubber core and the bead, improving the bead quality, avoiding the performance reduction caused by the loose bonding between the rubber core and the bead, improving the durability of the bead, and eliminating the hidden danger of early tire damage. Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 Schematic structural diagram of the present utility model.

[0015] In the figure: 1. Machine base, 2. Bonding function fixed bracket, 3. Pressing function fixed bracket, 4. Fixed large plate, 5. Large plate rotating bearing seat, 6. Large plate rotating main shaft, 7. Synchronous belt rotating drive device, 8. Drive motor reducer, 9. Rotating sealing device, 10. Lower rotating large plate, 11. Large plate rotating auxiliary support wheel, 12. Large bevel gear transmission shaft, 13. Large bevel gear, 14. Small bevel gear, 15. Spacing adjusting lead screw bearing seat, 16. Spacing adjusting lead screw with movable wrench, 17. Spacing adjusting nut fixing device, 18. Bead expander cylinder, 19. Bead expander, 20. Upper rotating large plate, 21. Bead expander moving positioning guide groove, 22. Rotating large plate connecting plate, 23. Press roller machine base, 24. Press roller adjusting nut, 25. Press roller adjusting lead screw, 26. Adjusting handwheel, 27. Linear guide pair, 28. Guide rail mounting plate, 29. Press roller height adjusting fixing wire, 30. Press roller fixed bracket, 31. Press roller lifting device, 32. Press roller device, 33. Press roller angle adjustment device, 34. Electrical control operation cabinet, 35. Bead expander diameter automatic adjustment device, 36. Bead expander diameter position sensor, A. Rubber core and bead composite. Detailed Embodiments

[0016] In the figure, the utility model is provided with a machine base 1. A fixed rubber core fitting rotation device and a pressing device for fixing the rubber core fitting are fixed on the machine base 1. Four fitting function fixing brackets 2 are fixedly installed on the right side of the machine base 1. The fitting function fixing brackets 2 are connected to a fixed large disc 4 through four bolts. In the middle of the upper part of the fixed large disc 4, a large disc rotating bearing seat 5 is fixedly installed. The middle of the fixed large disc 4 is installed with a large disc rotating main shaft 6 through the large disc rotating bearing seat 5. A synchronous belt rotating drive device 7 linked to the large disc rotating main shaft 6 is installed in the lower half of the fixed large disc 4. The synchronous belt rotating drive device 7 is driven by a motor reducer 8 installed on the base 1 to provide the rotation power of the fitting machine. A rotating sealing device 9 for providing air source power for the ring support cylinder 18 is installed in the lower part of the fixed large disc 4 to ensure the stable supply of air source during the rotation of the fitting machine. The rotating sealing device 9 uses double bearings for support and divides the sealing rings, converting the air source transmission path from a fixed direction into a function of transmitting the air source with 360° non-dead-angle random rotation. The upper half of the large disc rotating main shaft 6 is connected to the lower rotating large disc 10 through screws. To solve the horizontal and balance problems of the lower rotating large disc 10 between the lower rotating large disc 10 and the fixed large disc 4, large disc rotation auxiliary support wheels 11 are provided. The fixed shaft of the large disc rotation auxiliary support wheels 11 adopts an eccentric shaft structure, which can realize the horizontal balance adjustment of the large disc rotation auxiliary support wheels 11. Eight sets of distance adjustment devices are equally installed on the upper surface of the lower rotating large disc 10. The distance adjustment device is composed of 8 groups of distance adjustment lead screw bearing seats 15 of the same model, distance adjustment lead screws 16 with movable wrenches, distance adjustment nut fixing devices 17, small bevel gears 14, ring support diameter automatic adjustment devices 35, and ring support diameter position sensors 36. The small bevel gears 14 are synchronously meshed with the large bevel gears 13. Under the rotation action of the large bevel gear transmission shaft 12, the ring support diameter automatic adjustment device 35 is driven or any one distance adjustment device can be manually adjusted to drive the other 7 groups of distance adjustment devices to move synchronously, and the diameter distance is recorded by the ring support diameter position sensor 36. The distance adjustment device can finely adjust the concentricity of the 8 groups of distance adjustment devices by separately adjusting the distance adjustment nuts and the fixing screw holes of the distance adjustment nut fixing devices 17. Eight sets of ring support cylinders 18 with driving ring supports are installed on the distance adjustment device. Under the action of the ring support cylinders 18, the ring supports 19 can perform linear reciprocating motions in the 8 groups of evenly distributed ring support moving positioning guide grooves 21 on the upper rotating large disc 20, realizing the expansion and contraction functions of the rubber core and bead wire composite parts A. The lower rotating large disc 10 and the upper rotating large disc 20 are connected through a rotating large disc connecting plate 22 to realize the synchronous rotation motion of the upper rotating large disc 20 and the lower rotating large disc 10.Four pressing function fixing brackets 3 are fixedly installed at the middle position on the left side of the machine base. The pressing function fixing brackets 3 are connected to the roller base 23 by four bolts. A set of roller adjusting devices is installed above the roller base 23. The roller adjusting devices include a roller lifting device 31 and a roller angle adjusting device 33. The roller angle adjusting device 33 is composed of a handle, a lead screw, a nut, a fixed seat, a connecting plate and a pin shaft. When adjusting the handle, with the pin shaft of the connecting plate and the roller fixing bracket as the center, it drives the nut to rotate and move, driving the roller lifting device 31 and the roller device 32 to make forward and backward angle adjustments to achieve a close fit with the shape of the rubber core. The roller device 32 is composed of a roller, a bracket, a pin shaft, a bearing and an adjusting sleeve. The surface of the roller is processed with a curve matching the shape of the rubber core to achieve the tightness of pressing. The roller adjusting device is composed of a linear guide pair 27, a roller adjusting bearing seat, a roller adjusting nut 24, a roller adjusting lead screw 25 and an adjusting handwheel 26 installed at the end of the roller adjusting lead screw 25. Shaking the adjusting handwheel 26 drives the roller adjusting lead screw 25 to rotate, driving the roller device 32 to perform a linear reciprocating motion under the action of the linear guide pair 27, and the position of the roller device can be adjusted to achieve the pressing function of rubber cores at different positions. Above the roller base 23, it is connected to the roller fixing bracket 30 through a guide rail mounting plate 28 and a roller height adjusting fixing wire 29. The roller device 32 is connected to the roller fixing bracket 30 through the roller lifting device 31 and the roller angle adjusting device 33, connecting the pressing device for fixing the rubber core fitting rotating part and the rubber core fitting into a whole. All electrical systems are programmed through the electrical control operation cabinet 34 to uniformly execute commands to control the manual and automatic operation of the equipment. The automatic diameter adjustment device 35 of the bead expander is composed of a servo motor and a position sensor. After adjusting the diameter parameter through the touch screen interface and starting, it automatically adjusts to the required process size. The driving motor reducer is a servo motor, and parameters such as the rotation speed and positioning angle can be set through the touch screen on the operation cabinet.

[0017] After adjusting the parameters through the touch screen of the electrical control operation cabinet 34 to set the automatic adjustment of the position of the bead expander 19 and the fitting and pressing positions of the roller device 32 according to different specifications, the bead expander cylinder 18 makes a linear reciprocating motion in the bead expander moving positioning guide groove 21, and the roller lifting device 31 drives the roller device 32 to make a lifting motion under the support of the roller fixing bracket 30 and the roller angle adjusting device 33, so as to realize the expansion and contraction fitting and lifting pressing functions of the bead wire and the rubber core, effectively improving the tightness and stability of the adhesion quality between the rubber core and the bead wire, improving the bead quality, avoiding the performance reduction caused by the loose adhesion between the rubber core and the bead wire, improving the durability of the bead, and eliminating the hidden danger of early tire damage.

[0018] The specific operation specification adjustment plan is as follows: the operator will first adjust the process dimension standard according to the production specification. For the fitting part, the adjustment is carried out by measuring and comparing the diameter dimension of the ring support 19 under the opening force of the ring support cylinder 18 with the process standard dimension. To ensure that the opening diameter of the pressure ring support is 5 mm larger than the inner diameter of the wire ring, calibrate the 1:1 accuracy of the parameters of the ring support 19 in the touch screen of the electrical control operation cabinet 34. Through setting data adjustment, the ring support diameter automatic adjustment device 35 drives the distance adjustment lead screw 16 with a movable wrench under the support of the distance adjustment lead screw bearing seat 15, drives the small bevel gear 14 to drive the synchronous movement of the large bevel gear 13, and the distance adjustment nut fixing device 17 drives the ring support cylinder 18 and the ring support 19 to move linearly in the ring support movement positioning guide groove 21 of the upper rotating large disc 20 until it automatically reaches the set position detected by the ring support diameter position sensor 36, realizing the standardization of the specification dimension positioning. After the fitting side adjustment is completed, expand the wire ring and the rubber core by using the ring support 19. After determining the position of the rubber core, rotate the adjusting handwheel 26 to drive the pressure roller adjusting lead screw 25 to rotate, with the pressure roller adjusting nut 24 as the positioning, and drive the guide rail mounting plate 28, the pressure roller height adjusting fixing wire 29, the pressure roller fixing bracket 30, the pressure roller lifting device 31, the pressure roller angle adjusting device 33 and the pressure roller device 32 to move linearly back and forth in a straight line on the linear guide rail pair 27 until the position of the pressure roller device 32 coincides with the position of the rubber core after the pressure roller lifting device 31 descends. To ensure the tight coincidence of the position of the pressure roller device 32 with the position of the rubber core, it is necessary to finely adjust the angle and height by adjusting the pressure roller angle adjusting device 33 and the pressure roller height adjusting fixing wire 29 to reach the marked scale line position, realizing the standardization of the specification dimension positioning.

[0019] The specific production process is as follows: The operator places the rubber core and bead wire composite A on the upper rotating large plate 20, turns on the power supply of the electrical control operation cabinet 34, operates the expansion and contraction switch of the bead holder 19, and provides the air source power for the bead holder cylinder 18 through the rotary seal device 9 to make a linear expansion movement in the bead holder movement positioning guide groove 21 of the upper rotating large plate 20. After the head end point of the rubber core is fitted with the bead wire position, the operator manually operates the lowering knob of the pressure roller device 32 on the electrical control operation cabinet 34. After the pressure roller device 32 is lowered to the rubber core pressing position under the action of the pressure roller lifting device 31, the operator steps on the jogging foot switch. The drive motor reducer 8 drives the synchronous belt rotation drive device 7 to drive the large plate rotation main shaft 6. Under the support of the machine base 1, the fixed large plate 4 and the large plate rotation bearing seat 5, all the components on the upper rotating large plate 20 and the lower rotating large plate 10 connected by the rotating large plate connecting plate 22 are driven to rotate under the support of the large plate rotation auxiliary support wheel 11, driving the rubber core and bead wire composite A expanded by the bead holder 19 to make a circumferential rotation movement under the pressing action of the pressure roller device 32, so as to realize the manual fitting function of fitting and pressing the rubber core. After one week of rotation is completed, the operator manually operates the raising knob of the pressure roller device 32 on the electrical control operation cabinet 34. After the pressure roller device 32 is raised to the waiting position under the action of the pressure roller lifting device 31, the operator operates the expansion and contraction switch of the bead holder 19, and provides the air source power for the bead holder cylinder 18 through the rotary seal device 9 to make a linear contraction movement in the bead holder movement positioning guide groove 21 of the upper rotating large plate 20, and takes the fitted rubber core and bead wire composite A off the fitting machine and stores it on the bead storage cart.After manual verification is normal, the operator places the rubber core and bead ring composite A on the upper rotating large plate 20. After manually operating the power supply of the electrical control operation cabinet 34 to switch from manual to automatic, step on the automatic step foot switch once, and the opening function of the bead expander 19 is automatically started. The bead expander 19 is provided with air source power for the bead expander cylinder 18 through the rotary seal device 9 and performs a linear opening movement in the bead expander movement positioning guide groove 21 of the upper rotating large plate 20. After manually fitting the head end point of the rubber core with the position of the bead ring, step on the automatic step foot switch for the second time, and the pressing roller device 32 is automatically started. Under the descending action of the pressing roller lifting device 31, it descends to the rubber core pressing position. After stepping on the automatic step foot switch for the third time, the synchronous belt rotation drive device 7 driven by the drive motor reducer 8 is automatically started to drive the large plate rotation main shaft 6. Under the support of the machine base 1, the fixed large plate 4 and the large plate rotation bearing seat 5, all the components on the upper rotating large plate 20 and the lower rotating large plate 10 connected by the rotating large plate connecting plate 22 are driven to rotate under the support of the large plate rotation auxiliary support wheel 11. The rubber core and bead ring composite A expanded by the bead expander 19 is driven to rotate circumferentially for one week ≤ 360° (the rotation angle can be set from the touch screen of the electrical control operation cabinet 34 according to actual needs) and then automatically stops rotating. After completion, step on the automatic step foot switch for the fourth time, and the rising function of the pressing roller device 32 is automatically started. The pressing roller device 32 is raised to the waiting position under the action of the pressing roller lifting device 31. After stepping on the automatic step foot switch for the fifth time, the shrinking function of the bead expander 19 is automatically started. The bead expander 19 is provided with air source power for the bead expander cylinder 18 through the rotary seal device 9 and performs a linear shrinking movement in the bead expander movement positioning guide groove 21 of the upper rotating large plate 20, so as to realize the automatic fitting and pressing function of fitting and pressing the rubber core. The fitted rubber core and bead ring composite A is taken off the fitting machine and stored on the bead storage vehicle. Since the automatic program needs to consider safety, position detection switches and safety devices are set at all positions. When the switch position is not detected to be in place, the automatic step foot switch cannot work properly and is in an invalid state.

Claims

1. A horizontal rubber core cold laminating machine for engineering giant tires, provided with a machine base, on which a fixed rubber core laminating rotating device and a fixed rubber core laminating pressing device are fixed, characterized in that: The fixed rubber core bonding rotation device includes a bonding function fixed bracket fixedly installed on the right side of the machine base, the bonding function fixed bracket is connected to a fixed large plate, a large plate rotating spindle is installed in the middle part of the upper part of the fixed large plate, a synchronous belt rotation drive device linked with the large plate rotating spindle is installed at the lower part of the fixed large plate, the synchronous belt rotation drive device is driven by a motor reducer installed on the base, a rotating sealing device is installed below the large plate rotating spindle to provide air source power for the ring support cylinder, the upper half of the large plate rotating spindle is connected to the lower rotating large plate, 8 sets of distance adjusting devices are equally installed on the lower rotating large plate, and 8 sets of ring support cylinders with driving ring supporters are installed on the distance adjusting device. Under the action of the ring support cylinder, 8 groups of evenly distributed support of the ring supporter on the upper rotating large plate can be realized. The circler moves in a positioning guide groove to make a linear reciprocating motion, and the lower rotating disc and the upper rotating disc are connected by a rotating disc connecting plate to realize the synchronous rotation of the upper and lower rotating discs; the pressing device for fixing the rubber core bonding includes a pressing function fixing bracket fixedly installed in the middle position on the left side of the machine base frame, and the pressing function fixing bracket is connected to the roller base, and a set of roller adjustment devices is installed above the roller base to adjust the position of the roller device. The roller adjustment device includes a roller lifting device and a roller angle adjustment device. The top of the roller base is connected to the roller fixing bracket through a guide rail mounting plate and a roller height adjustment fixing wire, and the roller device is connected to the roller fixing bracket through the roller lifting device and the roller angle adjustment device.

2. According to claim 1, the horizontal rubber core cold laminating machine for engineering giant tires is characterized in that The rotary sealing device is supported by double bearings and the sealing ring is partitioned to convert the direction of the gas source transmission path into 360 degrees without dead angles.

3. The horizontal rubber core cold laminating machine for engineering giant tires according to claim 1 is characterized in that A large disc rotating auxiliary support wheel is arranged between the lower rotating large disc and the fixed large disc, and the fixed shaft of the auxiliary support wheel adopts an eccentric shaft structure.

4. The horizontal rubber core cold laminating machine for engineering giant tires according to claim 1, characterized in that The pitch adjusting device is composed of 8 groups of pitch adjusting device bearing seats of the same model, pitch adjusting screws with adjustable wrenches, pitch adjusting nut fixing devices and small bevel gears. The small bevel gears are synchronously meshed with the large bevel gears. Under the rotation design of the large bevel gear transmission shaft, the diameter of the ring supporter is achieved by driving the automatic adjustment device through a servo motor or manually adjusting one pitch adjusting device, which can simultaneously drive the remaining 7 groups of pitch adjusting devices to move synchronously.

5. The horizontal rubber core cold laminating machine for engineering giant tires according to claim 1 is characterized in that The pressure roller adjustment device is composed of a linear guide rail pair, a roller adjustment bearing seat, a pressure roller adjustment nut, a pressure roller adjustment screw and an adjustment hand wheel installed at the end of the pressure roller adjustment screw.

6. The horizontal rubber core cold laminating machine for engineering giant tires according to claim 1, characterized in that The pressure roller angle adjustment device is composed of a handle, a screw, a nut, a fixing seat, a connecting plate and a pin shaft. The handle is rotated with the connecting plate and the pin shaft of the pressure roller fixing bracket as the center of the circle, driving the nut to rotate and move, driving the pressure roller lifting device and the pressure roller device to adjust the forward and backward angles.

7. The horizontal rubber core cold laminating machine for engineering giant tires according to claim 1, characterized in that The pressing roller device is composed of a pressing roller, a bracket, a pin shaft, a bearing and an adjusting sleeve. The surface of the pressing roller is processed with a curve matching the shape of the rubber core.

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