Weak-tension material storage device and apex laminating machine

Abstract

The invention discloses a weak tension material storage device and a bead filler laminating machine, the bead filler laminating machine comprises an extrusion device, a belt roller way device, a cooling traction device, a material storage device, a feeding device and a laminating device which are arranged in sequence, a plurality of vertical guide shafts and a plurality of horizontal transmission rollers are arranged on a rack of the material storage device in parallel; a liftable floating wheel assembly is arranged on the guide shaft in a sliding manner, each transmission roller is independently connected with a motor and is independently driven by the motor, and the motors are fixed on the rack; during feeding, apex is sequentially wound along the floating wheel assemblies and the transmission rollers in a one-to-one spaced mode. According to the storage device, the floating wheel assembly is independently driven and adjusted, the deformation amount generated by the weak driving force and the rubber material tension effect is small, follow-up attaching of apex is guaranteed, and the quality of a tire bead is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tire manufacturing, in particular to a weak tension material storage device and an apex glue laminating machine suitable for automatic laminating of narrow-strip apex glue. Background Art

[0002] The tire bead, also known as the bead, is the part of the tire that attaches to the rim. It withstands the tensile forces generated by the tire's internal pressure while also overcoming lateral forces during cornering, preventing the tire from lifting off the rim. Therefore, the bead must have a high pressure-bearing capacity and a tight, sturdy structure that is not easily deformed.

[0003] The tire bead usually includes a wire ring and an apex glue attached to the wire ring. Currently, the apex glue of the tire bead is usually attached on a semi-automatic or fully automatic production line.

[0004] Chinese invention patent application CN104175583A discloses a apex adhesive laminating production line. After being extruded from a cold feed extruder, the apex adhesive passes through a traction device, a cooling device, and a storage device, and then is fed to the apex adhesive laminating machine head for laminating with a wire ring. The storage device of this laminating production line is equipped with two storage racks, each equipped with multiple storage rollers. The two storage racks are driven by a drive device to move toward or away from each other, so that the tension of the rubber on the storage rollers is balanced with the driving force, and the rubber remains taut. This apex adhesive laminating production line is suitable for laminating apex adhesives with wider widths (such as those used in tire beads for cars or construction vehicles). However, when it is applied to laminating apex adhesives with narrower widths (such as those used in motorcycle tire beads), the following problems arise: (1) Under the same tension, narrow-band apex rubber is more likely to undergo plastic deformation than wide-band apex rubber, and the deformation is greater. The storage device of the bonding production line adjusts the tension by moving two storage rollers in opposite directions. The two storage rollers are driven by the same drive device, and a number of storage rollers are set on the two storage rollers and move simultaneously with the storage rollers. Since the storage device adopts a one-to-two structure, one drive device drives two storage rollers with a more complex structure and heavier weight at the same time, the driving resistance is large, so the driving force applied to the apex rubber will be very large, and the corresponding rubber tension given by the storage rollers will also be very large. Under the action of the driving force and the rubber tension, the apex rubber is prone to deformation, especially the narrow-band apex rubber, which will have a greater deformation. This storage structure causes the deformation of the apex rubber to be within the recoverable range for wide-band apex rubber and will not affect the subsequent bonding of the rubber; however, for narrow-band apex rubber, excessive deformation will cause it to be unable to recover, thereby affecting its subsequent bonding and further affecting the quality of the tire bead.

[0005] (2) Due to the narrow width of the apex, it is difficult to ensure that the bottom surface of the apex is always attached to the transmission roller and transported forward during the entire conveying process. During the conveying process from the extruder to the bonding head, the apex can easily flip over from its bottom side to the waist side, or even flip over several times. After the flipped apex is sent to the bonding head, it cannot be smoothly bonded with the wire ring. This will not only cause a large amount of rubber waste and significantly increase material costs, but also greatly affect production efficiency.

[0006] (3) When narrow-strip apex is extruded, the extruder speed is relatively low, and it is difficult to match the speed of the subsequent device after the apex is extruded. In addition, since the extrusion opening of the extruder is relatively small, the internal pressure of the extruder is relatively high. After the extruder stops, the rubber will continue to be squeezed out under the action of the internal pressure. This part of the rubber will easily accumulate at the extrusion opening or cause the apex to stretch, thereby affecting the transportation and quality of the rubber. Summary of the Invention

[0007] In view of the shortcomings of the above-mentioned existing apex glue laminating production lines, the applicant provides a structurally rational, low-tension material storage device and an apex glue laminating machine suitable for narrow-strip apex glue laminating, which prevents the apex glue from flipping and deforming, and ensures the transportation and quality of the glue material.

[0008] The technical solutions adopted in the present invention are as follows: A weak tension material storage device has a plurality of vertical guide shafts and a plurality of horizontal transmission rollers arranged in parallel on the frame. A lifting floating wheel assembly is slidingly arranged on the guide shaft. Each transmission roller is individually connected to a motor and driven by it. The motor is fixed to the frame. When feeding, the apex rubber is wound in sequence along the floating wheel assembly and the transmission roller in a one-to-one manner.

[0009] As a further improvement of the above technical solution: The floating wheel assembly includes a shaft, a guide wheel and stop wheels on both sides thereof. The guide wheel and the stop wheels on both sides thereof are respectively arranged on the shaft through bearing sleeves. The guide wheel and the stop wheels can rotate independently.

[0010] The guide wheel is a cam wheel with a high middle part and low two sides, and the maximum outer diameter of the blocking wheel is greater than the maximum outer diameter of the guide wheel.

[0011] The transmission roller is a convex roller with a high middle part and low sides.

[0012] A buffer block is provided at the bottom of the guide shaft; and a photoelectric switch assembly is provided on the frame at positions corresponding to the top and bottom ends of the guide shaft.

[0013] A apex glue laminating machine comprises an extrusion device, a belt roller device, a cooling and traction device, a storage device, a feeding device, and a laminating device which are arranged in sequence. The storage device adopts the above-mentioned weak tension storage device.

[0014] As a further improvement of the above technical solution: An extrusion traction device is provided on the front side of the extruder of the extrusion device. The pneumatic motor of the extrusion traction device is connected to the differential roller assembly through a coupling; the differential roller assembly includes a rotating shaft, a turntable and a plurality of rotating rollers. The rotating shaft is passed through the support assembly through a bearing and is connected to the power output shaft of the pneumatic motor through a coupling. The turntable is fixedly connected to the rotating shaft, and the plurality of rotating rollers are arranged along the circumference and connected to the turntable through bearings.

[0015] The cooling traction device includes an upper traction roller and a lower traction cylinder. When feeding, the apex rubber is repeatedly wound several times between the upper traction roller and the lower traction cylinder; the feed side of the upper traction roller is provided with a feed guide wheel, and the discharge side of the upper traction roller is provided with a feed guide wheel; the feed guide wheel and the feed guide wheel include a shaft, a guide wheel and stop wheels on both sides thereof, the guide wheel and the stop wheels on both sides thereof are respectively arranged on the shaft through bearing sleeves, the guide wheel and the stop wheel can rotate independently of each other, the guide wheel is a cam wheel with a high middle part and low sides, and the maximum outer diameter of the stop wheel is larger than the maximum outer diameter of the guide wheel.

[0016] A guide assembly is provided on the feeding device, and a clamping assembly is provided above the bottom plate of the guide assembly. The clamping arm of the clamping assembly is hinged to the second cylinder, an upper pressure plate is provided on the pressure arm, and a guide groove is correspondingly provided on the bottom plate. After the apex rubber is delivered to the position, the upper pressure plate on the pressure arm cooperates with the guide groove to clamp the apex rubber.

[0017] A number of transverse rollers are arranged on the bottom plate of the guide assembly. The transverse rollers include fixed rollers and movable rollers. The movable rollers are connected to the first cylinder, and the first cylinder can lift or lower the movable rollers; a support plate is fixedly arranged above the bottom plate, and the pressure arm and the second cylinder are respectively connected to the support plate through support rods; an upper limit roller is arranged on the support plate and above the movable roller, and a number of vertical rollers are arranged on the support plate; the pressing part of the upper pressure plate is tilted downward at a certain angle, and the inclination angle of the pressing part matches the inclination angle of the corresponding waist side of the apex rubber; the bottom surface of the guide groove is tilted downward at a certain angle, and the inclination angle of the bottom surface of the guide groove matches the inclination angle of the gluing surface of the bonding device; the pressure arm and the guide groove extend forward toward the gluing surface of the bonding device; on the bottom plate, a third cylinder and a buffer are arranged on the side facing the feed roller, and a scale is arranged on one side of the third cylinder.

[0018] The beneficial effects of the present invention are as follows: (1) The floating wheel assembly of the material storage device of the present invention is driven by an independent motor through the corresponding transmission roller, and is independently raised and lowered and adjusted along the corresponding guide shaft. The advantages of this design are as follows: on the one hand, the floating wheel assembly adopts a one-to-one driving mode, with one motor driving one floating wheel assembly, and the floating wheel assembly has a simple structure, is very light, and has low driving resistance, so the driving force applied to the apex is very small, and accordingly the rubber tension given by the floating wheel assembly is relatively weak. Even if the weak driving force and rubber tension act on a narrow apex, the deformation of the apex is very small and basically no deformation occurs. On the other hand, since each floating wheel assembly is driven by a separate motor, each floating wheel assembly can be independently adjusted according to the actual driving force, so that the rubber tension and driving force on each floating wheel assembly are completely balanced, eliminating the deformation caused by the additional rubber tension or driving force. The floating wheel assembly adopts an independently driven and independently adjusted structural design, and the deformation caused by the weak driving force and rubber tension is small. Even if it is a narrow apex, it can recover after deformation, ensuring the subsequent fitting of the apex and the quality of the tire bead.

[0019] (2) The guide wheel and the two guide wheels of the traction structure of the present invention are designed as separate parts and can rotate independently: on the one hand, when the edge of the apex rubber touches the side of the stop wheel, the stop wheel can automatically rotate accordingly, thereby reducing the relative movement trend between the apex rubber and the stop wheel, reducing the friction between the two, and greatly reducing the risk of the apex rubber flipping due to the obstruction of the first stop wheel, preventing the apex rubber from flipping from the bottom side to the waist side, and ensuring that the bottom surface of the apex rubber is always in contact with the roller surface and transported forward during the transportation process. On the other hand, since the guide wheel and the guide wheel are independent entities, their rotation does not interfere with each other, so the highest linear speed part of the guide wheel is always at the part with the largest outer diameter in the middle, so that the apex rubber always maintains a tendency to deviate to the part with the largest outer diameter in the middle on the guide wheel, effectively preventing the apex rubber from running outward or even flipping out of the guide wheel; and the guide wheel rotates with the drive of the apex rubber, and its speed is lower than the forward speed of the apex rubber, which can make the apex rubber be more effectively blocked in the guide wheel, and is also more conducive to preventing the apex rubber from flipping over, ensuring that the bottom surface of the apex rubber is always in contact with the roller surface for forward transportation, ensuring the effective contact between the subsequent apex rubber and the wire ring, reducing rubber waste, reducing material costs, and improving production efficiency.

[0020] (3) The extrusion traction device of the extrusion device of the present invention is provided with a differential roller assembly, which is driven to rotate by a pneumatic motor to provide traction power to the apex rubber just extruded from the extruder: on the one hand, the forward speed of the apex rubber can be increased to match the conveying speed of the subsequent belt roller device. Even if the narrow apex rubber is extruded at a low speed, its forward speed can be well matched with the conveying speed of the belt roller device under the power traction of the differential roller assembly, ensuring that the apex rubber is smoothly conveyed forward and prevented from stagnation or jamming. On the other hand, after the extruder stops, the rubber material (especially the narrow apex rubber) that continues to be extruded due to the internal cavity pressure can continue to be conveyed forward under the power traction of the differential roller assembly, preventing the rubber material from accumulating at the extrusion port or causing the apex rubber to stretch, thereby ensuring the conveying and quality of the apex rubber. While the differential roller assembly rotates around the rotating shaft as a whole, the rotating roller can also rotate around its own central axis and adjust itself, thereby playing a differential role, so that the speed of the apex rubber is better matched with the speed of the subsequent device, ensuring the conveying and quality of the rubber material.

[0021] (4) The feeding device of the present invention is provided with a guide assembly, and the pressure arm of the guide assembly cooperates with the guide groove of the bottom plate to press the apex rubber. An upper pressure plate is provided on the pressure arm, and the pressing portion of the upper pressure plate is tilted downward at a certain angle, and the tilt angle of the pressing portion matches the tilt angle of the corresponding waist side of the apex rubber. When pressing, the upper pressure plate fits and presses on the entire waist side of the apex rubber, which is more conducive to positioning the apex rubber, with higher positioning accuracy, so that the apex rubber enters the fitting device more smoothly. The bottom surface of the guide groove is tilted downward at a certain angle, and the tilt angle of the bottom surface of the guide groove matches the tilt angle of the adhesive surface of the fitting device. Under the guidance of the guide groove, the adhesive bottom surface of the apex rubber is guided to the adhesive surface of the fitting device in a posture parallel to the adhesive surface. After feeding, the adhesive bottom surface of the apex rubber is directly flatly attached to the wire ring, which is more conducive to the apex rubber aligning with the wire ring, improving the position accuracy of the apex rubber and the wire ring, ensuring the adhesive quality, and improving the quality of the tire rim. The bottom plate is equipped with a movable roller that can be raised or lowered to adjust the height of the apex. Above the movable roller is an upper limit roller to limit the height of the apex, preventing the apex from tilting up or turning over after the movable roller is raised, ensuring that the apex maintains the correct posture when it is transported forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main partial cross-sectional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of a top view and a partial cross-section of the structure of the present invention.

[0024] Figure 3 for Figure 1 Enlarged view of part A in the middle.

[0025] Figure 4 for Figure 2Enlarged view of part B in the middle.

[0026] Figure 5 for Figure 2 Magnified view of section C.

[0027] Figure 6 It is a structural schematic diagram of the extrusion traction device.

[0028] Figure 7 It is a schematic diagram of the main structure of the storage device.

[0029] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the storage device from the left.

[0030] Figure 9 for Figure 8 Enlarged view of part D in the middle.

[0031] Figure 10 Schematic diagram of the main structure of the guide structure.

[0032] Figure 11 Schematic diagram of the top view of the guide structure.

[0033] In the picture: 1. Extrusion device; 11. Extruder; 12. Temperature control system; 13. Extrusion traction device; 131. Pneumatic motor; 132. Coupling; 133. Differential roller assembly; 1331. Rotating shaft; 1332. Turntable; 1333. Rotating roller; 134. Support assembly; 2. Belt roller device; 21. Belt section; 22. Roller section; 23. Fixed traction roller; 24. Floating traction roller; 3. Cooling and traction device; 31. Upper traction roller; 311. Traction wheel; 312. Traction shaft; 32. Lower traction drum; 33. Chiller; 34. Infeed guide wheel; 341. First shaft; 342. First guide wheel; 343. First stop wheel; 35. Outfeed guide wheel; 351. Second shaft; 352. Second guide wheel; 353. Second stop wheel; 36. Connector; 37. Stop rod; 38. Feed channel; 4. Storage device; 41. Frame; 42. Floating wheel assembly; 421. Third shaft; 422. Third guide wheel; 423. Third stop wheel; 43. Drive roller; 44. Motor; 45. Slider assembly; 46. Guide shaft; 47. Buffer block; 48. Photoelectric switch assembly; 5. Feeding device; 51. Base; 52. Feeding roller; 53. Guide assembly; 531. Bottom plate; 5311. Lower pressure plate; 5312. Guide groove; 532. Horizontal roller; 5321. Fixed roller; 5322. Movable roller; 533. First cylinder; 534. Support plate; 535. Vertical roller; 536. Pressing assembly; 5361. Pressing arm; 5362. Second cylinder; 5363. Upper pressure plate; 5364. First support rod; 5365. Second support rod; 537. Upper limit roller; 538. Third cylinder; 5381. Scale; 539. Buffer; 54. Linear guide; 6. Laminating device; 10. Feeding center line; 100. Triangle bead. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0035] like Figure 1 、 Figure 2 As shown, the present invention sequentially arranges an extrusion device 1, a belt roller device 2, a cooling and traction device 3, a storage device 4, a feeding device 5, and a bonding device 6. After being extruded from the extrusion device 1, the apex rubber 100 is sent to the cooling and traction device 3 via the belt roller device 2 for cooling. After that, it is sent to the bonding device 6 via the storage device 4 and the feeding device 5 for bonding with the bead ring to obtain a bead.

[0036] like Figures 1 to 3 As shown, the extrusion device 1 includes an extruder 11 and a temperature control system 12. The extruder 11 is used to extrude the apex 100, and the temperature control system 12 is used to control and monitor the extrusion temperature of the extruder 11. An extrusion traction device 13 is provided in front of the extrusion port of the extruder 11. The extrusion traction device 13 is fixed on the side of the extruder 11. Figure 3 ,like Figure 6As shown, the extrusion traction device 13 includes an air motor 131, a coupling 132, a differential roller assembly 133, and a support assembly 134. The air motor 131 is connected to the differential roller assembly 133 via the coupling 132, and the air motor 131 and the differential roller assembly 133 are arranged on the support assembly 134. The differential roller assembly 133 is driven to rotate by the air motor 131 to provide traction power to the apex 100 just extruded from the extruder 11. On the one hand, it can increase the forward speed of the apex 100 to match the conveying speed of the subsequent belt roller device 2. Even if the narrow strip apex 100 is extruded at a low speed, its forward speed can be well matched with the conveying speed of the belt roller device 2 under the power traction of the differential roller assembly 133, ensuring that the apex 100 is smoothly conveyed forward and preventing stagnation or jamming. On the other hand, after the extruder 11 stops, the rubber material (especially the narrow apex 100) that continues to be extruded due to the internal cavity pressure can continue to be fed forward under the power traction of the differential roller assembly 133, preventing the rubber material from accumulating at the extrusion port or causing the apex 100 to stretch, thereby ensuring the transportation and quality of the apex 100. The differential roller assembly 133 includes a rotating shaft 1331, a rotating disk 1332 and a plurality of rotating rollers 1333; the rotating shaft 1331 is passed through the support assembly 134 through a bearing and is connected to the power output shaft of the pneumatic motor 131 through a coupling 132. Two rotating disks 1332 are fixedly connected to the rotating shaft 1331, and a plurality of rotating rollers 1333 are evenly arranged circumferentially between the two rotating disks 1332. The rotating rollers 1333 are connected to the rotating disk 1332 through bearings. While the differential roller assembly 133 as a whole rotates around the rotating shaft 1331, the rotating rollers 1333 can also rotate around their own central axis and adjust themselves, thereby playing a differential role, so that the speed of the apex rubber 100 can better match the speed of the subsequent device, thereby ensuring the transportation and quality of the rubber material.

[0037] like Figure 1 、 Figure 2 As shown, the belt roller conveyor 2 comprises a front belt section 21 and a rear roller section 22. The belt section 21 is conveyed by a belt conveyor, and the roller section 22 is provided with a plurality of conveyor rollers for conveying. A fixed traction roller 23 and a floating traction roller 24 are also provided behind the roller section 22. The fixed traction roller 23 is located outside the discharge side of the leftmost conveyor roller of the roller section 22, and the floating traction roller 24 is located diagonally below the fixed traction roller 23.

[0038] like Figure 1 、 Figure 2As shown, the cooling traction device 3 includes an upper traction roller 31, a lower traction drum 32 and a chiller 33. The chiller 33 provides circulating cooling water to the lower traction drum 32. The apex 100 sent from the belt roller device 2 is first wound around the upper traction roller 31, and then repeatedly wound between the upper traction roller 31 and the lower traction drum 32 for several times before being drawn out from the upper traction roller 31. Figure 2 、 Figure 4 As shown, the upper traction roller 31 has several traction wheels 311 arranged side by side, perpendicular to the feed centerline 10, on its traction shaft 312. The apex 100 is fed in through the first traction wheel 311 and discharged through the last traction wheel 311. The traction wheels 311 are convex wheels with a high center and low sides. Each apex 100 is routed around the high center position of a traction wheel 311. Because the apex 100, driven by the traction wheels 311, tends to gravitate toward the point of maximum linear velocity (i.e., the highest center position of the traction wheel 311), the use of traction wheels 311 with a high center and low sides ensures that the apex 100 is consistently conveyed forward toward the center of the traction wheel 311, where the outer diameter is greatest, preventing the apex 100 from straying outward. A plurality of vertical shift rods 37 are arranged side by side on the outer side of the feed side of the upper traction roller 31 in a direction perpendicular to the feeding center line 10. There is a spacing between two adjacent shift rods 37 to form a feed channel 38. One feed channel 38 corresponds to one traction wheel 311. Each feed channel 38 faces one traction wheel 311. Each apex rubber 100 passes through the corresponding feed channel 38 and goes around to the middle high position of the corresponding traction wheel 311. The shift rod 37 acts as a material stop to limit the apex rubber 100 within the specified track to prevent the apex rubber 100 from deviating from the conveying path.

[0039] like Figure 1 、 Figure 2 、 Figure 4As shown, a feed guide wheel 34 is provided on the feed side outside of the frontmost traction wheel 311 of the upper traction roller 31 (i.e., the feed traction wheel 311). The feed guide wheel 34 is arranged on the feed side outside of a plurality of stop rods 37. The apex rubber 100 first passes through the feed guide wheel 34, then through the feed channel 38, and then around the traction wheel 311. The feed guide wheel 34 is connected to the traction shaft 312 of the upper traction roller 31 via a connector 36. The feed guide wheel 34 serves as a traction structure, pulling the apex rubber 100 into the upper traction roller 31. The feed guide wheel 34 includes a first shaft 341, a first guide wheel 342, and first stop wheels 343 arranged on both sides of the first guide wheel 342. The first shaft 341 is fixed to the connector 36, and the first guide wheel 342 and the two first stop wheels 343 are respectively mounted on the first shaft 341 via bearing sleeves. The first guide wheel 342 is a convex wheel with a high middle and low sides. The maximum outer diameter of the first stop wheel 343 is larger than the maximum outer diameter of the first guide wheel 342. The first stop wheels 343 on both sides of the first guide wheel 342 block the apex 100 in the area of ​​the first guide wheel 342 and transport it forward to prevent the apex 100 from deviating. Since the first guide wheel 342 and the two first guide wheels 342 are designed as separate and independent parts, and are respectively mounted on the first shaft 341 through bearing sleeves, the first guide wheel 342 and the two first stop wheels 343 can rotate independently: on the one hand, when the edge of the apex rubber 100 touches the side of the first stop wheel 343, the first stop wheel 343 can automatically rotate accordingly, thereby reducing the relative movement trend between the apex rubber 100 and the first stop wheel 343, reducing the friction between the two, and greatly reducing the risk of the apex rubber 100 flipping over due to the obstruction of the first stop wheel 343, preventing the apex rubber 100 from flipping over from the bottom side to the waist side, and ensuring that the bottom surface of the apex rubber 100 is always in contact with the roller surface and transported forward during the transportation process. On the other hand, since the first guide wheel 342 and the second guide wheel 343 are independent entities, the rotation of the two does not interfere with each other. Therefore, the highest linear speed part of the first guide wheel 342 is always at the high position with the largest outer diameter in the middle, so that the apex 100 always maintains a tendency to deviate toward the part with the largest outer diameter in the middle on the first guide wheel 342, effectively preventing the apex 100 from deviating outward or even flipping off the first guide wheel 342; and the first guide wheel 342 rotates with the drive of the apex 100, and its speed is lower than the forward speed of the apex 100, so that the apex 100 can be more effectively blocked in the first guide wheel 342, which is also more conducive to preventing the apex 100 from flipping over, ensuring that the bottom surface of the apex 100 is always in contact with the roller surface for forward transportation, ensuring the effective contact between the subsequent apex 100 and the wire ring, reducing rubber waste, reducing material costs, and improving production efficiency.

[0040] like Figure 1 、 Figure 2 、 Figure 5As shown, a delivery guide wheel 35 is provided on the outer side of the discharge side of the last traction wheel 311 (i.e., the discharge traction wheel 311) of the upper traction roller 31. The delivery guide wheel 35 is fixed to the side of the cooling traction device 3. The delivery guide wheel 35 serves as a traction structure to pull the apex rubber 100 from the upper traction roller 31. The structure of the delivery guide wheel 35 is the same as that of the delivery guide wheel 34, including a second shaft 351, a second guide wheel 352, and two second stop wheels 353. The second guide wheel 352 and the two second stop wheels 353 are respectively mounted on the second shaft 351 through bearing sleeves. The second guide wheel 352 and the two second stop wheels 353 can rotate independently. The second guide wheel 352 is a convex wheel with a high middle part and low sides. The maximum outer diameter of the second stop wheel 353 is larger than the maximum outer diameter of the second guide wheel 352. The delivery guide wheel 35 relays the apex 100 forward in the conveying path to prevent the apex 100 from turning over, ensuring that the bottom surface of the apex 100 always adheres to the roller surface and is conveyed forward, thereby avoiding waste of rubber and improving production efficiency.

[0041] like Figure 1 、 Figure 7 、 Figure 8As shown, the frame 41 of the storage device 4 is fixedly mounted with several vertical guide shafts 46. A floating wheel assembly 42 is slidably mounted on each guide shaft 46 via a slider assembly 45. The floating wheel assembly 42 can be raised and lowered freely along the guide shaft 46. The top surface of the frame 41 is equipped with several horizontal drive rollers 43. Each drive roller 43 is connected to and independently driven by a motor 44. Several motors 44 are fixed to the top of the frame 41. After being delivered from the cooling and traction device 3, the apex 100 is wound one by one along the floating wheel assembly 42, drive roller 43, floating wheel assembly 42, drive roller 43, and so on. The floating wheel assembly 42 and drive roller 43 serve as a traction mechanism, pulling the apex 100 forward. When the apex 100 is delivered to the storage device 4, it is first wound onto the floating wheel assembly 42 and finally leaves the storage device 4 after being wound onto the floating wheel assembly 42. In other words, the apex 100 is delivered into and out of the storage device 4 via the corresponding floating wheel assembly 42. When the tension of the apex 100 changes, the floating wheel assembly 42 adjusts by lifting and lowering, balancing the rubber tension on the floating wheel assembly 42 with the driving force, keeping the rubber taut. Each floating wheel assembly 42 is driven by an independent motor 44 via a corresponding drive roller 43 and independently raised and lowered along a corresponding guide shaft 46 for adjustment. This design has the following advantages: First, the floating wheel assembly 42 utilizes a one-to-one drive method, with each motor 44 driving one floating wheel assembly 42. Furthermore, the floating wheel assembly 42 is simple in structure, lightweight, and has low driving resistance. Consequently, the driving force applied to the apex 100 is minimal, resulting in a relatively weak rubber tension applied by the floating wheel assembly 42. Even with this weak driving force and rubber tension acting on a narrow-strip apex 100, the apex 100 experiences minimal, if any, deformation. On the other hand, since each floating wheel assembly 42 is driven by a separate motor 44, each floating wheel assembly 42 can be independently adjusted based on the actual driving force, achieving a perfect balance between the rubber tension and driving force on each floating wheel assembly 42, eliminating deformation caused by excessive rubber tension or driving force. The floating wheel assembly 42 adopts an independently driven and independently adjustable structural design. The deformation caused by weak driving force and rubber tension is small. Even narrow apex 100 can recover after deformation, ensuring the subsequent fit of the apex 100 and the quality of the tire bead. Figure 7 As shown, on the frame 41, photoelectric switch components 48 are respectively provided at the positions corresponding to the top and bottom ends of the guide shaft 46. The photoelectric switch components 48 are used to control the start and stop of the motor 44. Figure 8 、 Figure 9 As shown, a buffer block 47 is provided at the bottom of each guide shaft 46 to prevent the floating wheel assembly 42 from directly colliding with the mounting assembly at the bottom of the guide shaft 46, thereby preventing damage to the floating wheel assembly 42 or the mounting assembly.

[0042] like Figure 9 As shown, the structure of the floating wheel assembly 42 of the storage device 4 is the same as that of the aforementioned feed guide wheel 34 or feed guide wheel 35, comprising a third shaft 421, a third guide wheel 422, and two third stop wheels 423. The third guide wheel 422 and the two third stop wheels 423 are respectively mounted on the third shaft 421 via bearing sleeves. The third guide wheel 422 and the two third stop wheels 423 can rotate independently. The third guide wheel 422 is a convex wheel with a high center and low sides. The maximum outer diameter of the third stop wheel 423 is larger than the maximum outer diameter of the third guide wheel 422. The floating wheel assembly 42 relays the apex 100 forward in the conveying path, preventing the apex 100 from flipping over and ensuring that the bottom surface of the apex 100 always adheres to the roller surface during forward conveyance, thereby avoiding waste of rubber material and improving production efficiency.

[0043] like Figure 8 As shown, the driving roller 43 of the storage device 4 is a convex roller with a high middle part and low sides, which ensures that the apex 100 is always conveyed forward with a tendency to be biased toward the middle part of the driving roller 43 with the largest outer diameter, thereby preventing the apex 100 from deviating.

[0044] like Figure 1 、 Figure 2 As shown, a plurality of feed rollers 52 are sequentially arranged on the base 51 of the feeding device 5 in a direction parallel to the feeding center line 10, and a guide assembly 53 is further arranged behind the plurality of feed rollers 52, as shown in FIG. Figure 10 As shown, the guide assembly 53 is set on the base 51 through the linear guide rail 54, and the position of the guide assembly 53 can be adjusted forward and backward through the linear guide rail 54.

[0045] like Figure 10 、 Figure 11 As shown, the base plate 531 of the guide assembly 53 is mounted on a linear guide rail 54 via sliders. Several transverse rollers 532 are mounted on the base plate 531. These rollers include a fixed roller 5321 and a movable roller 5322. The movable roller 5322 is connected to a first cylinder 533, which can raise or lower the movable roller 5322 to adjust the height of the apex 100. A support plate 534 is fixed above the base plate 531. An upper limit roller 537 is mounted on the support plate 534, located horizontally above the movable roller 5322. This upper limit roller 537 limits the height of the apex 100, preventing it from tilting or flipping when the movable roller 5322 is raised, ensuring that the apex 100 maintains the correct posture for forward delivery. Several vertical rollers 535 are mounted on the support plate 534. These rollers act as a material stop and positioner, limiting the position of the apex 100 and ensuring that it is delivered along a specified trajectory.

[0046] A pressing assembly 536 is disposed on the support plate 534, above the base plate 531. The pressing assembly 536 comprises a pressing arm 5361 and a second cylinder 5362. The pressing arm 5361 is hingedly connected to the piston rod of the second cylinder 5362. The pressing arm 5361 is connected to the support plate 534 via a first support rod 5364, while the cylinder base of the second cylinder 5362 is connected to the support plate 534 via a second support rod 5365. The pressing arm 5361 extends forward toward the adhesive bonding surface of the bonding device 6. An upper pressing plate 5363 is fixedly disposed on the end of the pressing arm 5361 facing the bonding device 6. The width of the pressing portion on the outer side of the upper pressing plate 5363 is greater than that of the pressing arm 5361, which facilitates the compression of the apex 100. The pressing portion of the upper pressing plate 5363 is tilted downward at a predetermined angle, matching the tilt of the corresponding waist side of the apex 100. During compression, the upper pressing plate 5363 fits and presses against the entire waist side of the apex 100, facilitating positioning of the apex 100 with greater precision and allowing the apex 100 to enter the laminating device 6 more smoothly. A lower pressing plate 5311 is fixedly mounted on the base plate 531, correspondingly below the pressing arm 5361. The lower pressing plate 5311 extends forward toward the laminating surface of the laminating device 6 and is provided with a guide groove 5312. The width of the guide groove 5312 is greater than the width of the apex 100. The extension of the guide groove 5312 toward the laminating device 6 is greater than or equal to the extension of the pressing arm 5361. The upper pressing plate 5363 of the pressing arm 5361 cooperates with the guide groove 5312 to compress the apex 100. The bottom surface of the guide groove 5312 is tilted downward at a certain angle. The tilt angle of the bottom surface of the guide groove 5312 matches the tilt angle of the adhesive surface of the adhesive bonding device 6. Under the guidance of the guide groove 5312, the adhesive bonding bottom surface of the apex 100 is guided to the adhesive bonding surface of the adhesive bonding device 6 in a posture parallel to the adhesive bonding surface. After being fed, the adhesive bonding bottom surface of the apex 100 is directly and flatly attached to the bead ring, which is more conducive to aligning the apex 100 with the bead ring, improving the positioning accuracy of the apex 100 and the bead ring, ensuring the adhesive bonding quality, and improving the quality of the tire bead. When the apex 100 is transported, the pressing arm 5361 is opened. After the apex 100 is delivered to the position, the pressing arm 5361 presses downward, and the upper pressing plate 5363 presses the apex 100 tightly against the guide groove 5312.

[0047] A third cylinder 538 and a buffer 539 are laterally mounted on the base plate 531 of the guide assembly 53, facing the feed roller 52. The third cylinder 538 and buffer 539 are connected to the base plate 531. When the apex 100 is being transported, the third cylinder 538 extends. Once the apex 100 is in place, the third cylinder 538 contracts, clamping the apex 100 and pressing it against the wire ring. A scale 5381 is mounted on the side of the third cylinder 538 facing the feed roller 52. This scale 5381 allows markings to be made for each size, confirming the optimal position for each size. This ensures that each size of apex 100 is fed forward along the optimal trajectory, improving the positioning accuracy of the apex 100 and the quality of the fit. The buffer 539 is used to control the cutting position of the apex 100. The buffer 539 is threadedly connected to the base plate 531, and its position can be adjusted by turning the buffer 539, thereby adjusting the cutting position.

[0048] The laminating device 6 is a device disclosed in the prior art that can achieve lamination between the apex 100 and the wire ring.

[0049] Optionally, in the entire apex rubber 100 conveying path from the extrusion device 1 to the laminating device 6, in addition to the cooling and traction device 3 and the storage device 4, a traction structure including a guide wheel and a stop wheel independently and rotatably mounted on the shaft (i.e., the same structure as the feed guide wheel 34 / feed guide wheel 35 / floating wheel assembly 42) can also be provided at other positions. This can further improve the conveying quality of the apex rubber 100 (especially the narrow-strip apex rubber 100) and reduce the risk of the apex rubber 100 flipping.

[0050] The above description is an explanation of the present invention, not a limitation of the present invention. The present invention may be modified in any form without violating the spirit of the present invention.

Claims

1. A weak tension storage device, characterized by: A plurality of vertical guide shafts (46) and a plurality of horizontal transmission rollers (43) are arranged in parallel on the frame (41), and a floating wheel assembly (42) that can be raised and lowered is slidably arranged on the guide shaft (46). Each transmission roller (43) is individually connected to a motor (44) and driven independently by the motor (44), which is fixed on the frame (41). When feeding, the apex rubber (100) is sequentially wound along the floating wheel assembly (42) and the transmission roller (43) in a one-to-one interval manner.

2. The weak tension material storage device according to claim 1, characterized in that: The floating wheel assembly (42) comprises a shaft, a guide wheel and stop wheels on both sides thereof. The guide wheel and the stop wheels on both sides thereof are respectively arranged on the shaft through bearing sleeves. The guide wheel and the stop wheels can rotate independently.

3. The weak tension material storage device according to claim 2, characterized in that: The guide wheel is a cam wheel with a high middle part and low two sides, and the maximum outer diameter of the blocking wheel is greater than the maximum outer diameter of the guide wheel.

4. The weak tension material storage device according to claim 1, characterized in that: The transmission roller (43) is a convex roller with a high middle portion and low sides.

5. The weak tension material storage device according to claim 1, characterized in that: A buffer block (47) is provided at the bottom of the guide shaft (46); and a photoelectric switch assembly (48) is provided on the frame (41) at positions corresponding to the top and bottom ends of the guide shaft (46).

6. An apex adhesive laminating machine, comprising an extrusion device (1), a belt roller device (2), a cooling and traction device (3), a storage device (4), a feeding device (5), and a laminating device (6) arranged in sequence, characterized in that: The storage device (4) adopts the weak tension storage device described in claim 1.

7. The apex glue laminating machine according to claim 6, characterized in that: An extrusion traction device (13) is provided at the front side of an extruder (11) of an extrusion device (1). An air motor (131) of the extrusion traction device (13) is connected to a differential roller assembly (133) via a coupling (132). The differential roller assembly (133) comprises a rotating shaft (1331), a rotating disk (1332), and a plurality of rotating rollers (1333). The rotating shaft (1331) is passed through a support assembly (134) via a bearing and is connected to a power output shaft of the air motor (131) via a coupling (132). The rotating shaft (1331) is fixedly connected to the rotating disk (1332). The plurality of rotating rollers (1333) are arranged circumferentially and connected to the rotating disk (1332) via bearings.

8. The apex glue laminating machine according to claim 6, characterized in that: The cooling traction device (3) comprises an upper traction roller (31) and a lower traction cylinder (32). When feeding, the apex rubber (100) is repeatedly wound several times between the upper traction roller (31) and the lower traction cylinder (32); a feeding guide wheel (34) is provided on the feeding side of the upper traction roller (31), and a feeding guide wheel (35) is provided on the discharging side of the upper traction roller (31); the feeding guide wheel (34) and the feeding guide wheel (35) comprise a shaft, a guide wheel and stop wheels on both sides thereof, the guide wheel and the stop wheels on both sides thereof are respectively arranged on the shaft through bearing sleeves, the guide wheel and the stop wheels can rotate independently, the guide wheel is a convex wheel with a high middle portion and low sides, and the maximum outer diameter of the stop wheel is larger than the maximum outer diameter of the guide wheel.

9. The apex glue laminating machine according to claim 6, characterized in that: The feeding device (5) is provided with a guide assembly (53), a pressing assembly (536) is provided above the bottom plate (531) of the guide assembly (53), a pressing arm (5361) of the pressing assembly (536) is hinged to the second cylinder (5362), an upper pressing plate (5363) is provided on the pressing arm (5361), and a guide groove (5312) is correspondingly provided on the bottom plate (531). After the apex rubber (100) is delivered to the position, the upper pressing plate (5363) on the pressing arm (5361) cooperates with the guide groove (5312) to press the apex rubber (100).

10. The apex glue laminating machine according to claim 9, characterized in that: A plurality of transverse rollers (532) are provided on the bottom plate (531) of the guide assembly (53), and the transverse rollers (532) include a fixed roller (5321) and a movable roller (5322). The movable roller (5322) is connected to the first cylinder (533), and the first cylinder (533) can lift or lower the movable roller (5322); a support plate (534) is fixedly provided above the bottom plate (531), and a pressure arm (5361) and a second cylinder (5362) are respectively connected to the support plate (534) through a support rod; an upper limit roller (537) is provided on the support plate (534) and above the movable roller (5322); and a plurality of A vertical roller (535); a pressing portion of the upper pressing plate (5363) is tilted downward at a certain angle, and the tilt angle of the pressing portion matches the tilt angle of the corresponding waist side of the apex rubber (100); the bottom surface of the guide groove (5312) is tilted downward at a certain angle, and the tilt angle of the bottom surface of the guide groove (5312) matches the tilt angle of the adhesive surface of the laminating device (6); the pressing arm (5361) and the guide groove (5312) extend forward toward the adhesive surface of the laminating device (6); a third cylinder (538) and a buffer (539) are provided on the side of the bottom plate (531) facing the feed roller (52), and a scale (5381) is provided on one side of the third cylinder (538).

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