Double-end synchronous radial tire winding machine

Abstract

The invention relates to the technical field of tire production equipment, and provides a double-end synchronous radial tire winding machine aiming at the problem that the rubber strip winding efficiency of a traditional winding machine is low, the double-end synchronous radial tire winding machine comprises a bottom frame and two winding mechanisms, and each winding mechanism comprises a middle frame, a rotating seat and a winding machine head; the middle frame is connected to the bottom frame in a sliding mode through an X-axis driving assembly, the rotating base is connected to the middle frame in a sliding mode through a Y-axis driving assembly, the winding machine head is vertically and rotationally connected to the rotating base through a rotating driving assembly, and a pressing wheel set used for compacting an adhesive tape is installed at the front end of the winding machine head. Two tensioning assemblies are arranged on the portions, corresponding to the two winding mechanisms, of the bottom frame, the output ends of the tensioning assemblies are connected with the corresponding winding mechanisms, each tensioning assembly comprises a V-shaped frame, and the V-shaped frames are evenly and rotationally connected with a plurality of tensioning rollers in the contour direction of the V-shaped frames. The device has the effect of improving the winding efficiency of the rubber strip on the periphery of the tire blank.

Description

Technical Field

[0001] The present application relates to the field of tire production equipment, and in particular to a double-head synchronous radial tire winding machine. Background Art

[0002] During the production process of radial tires, a wrapping machine is required to wrap the sticky rubber strip heated and extruded by a screw extruder around the outer periphery of the tire embryo.

[0003] In the related technology, taking the invention patent of our company with application number CN109435295A as an example, the winding machine includes a base frame and a winding mechanism, and the winding mechanism includes a middle frame, a rotating seat and a winding head; wherein the middle frame is slidably connected to the base frame through an X-axis drive assembly, the rotating seat is slidably connected to the middle frame through a Y-axis drive assembly, and the winding head is rotatably connected to the rotating seat through a rotating drive assembly; a pressure wheel group for compacting the rubber strip is installed at the front end of the winding head.

[0004] When the rubber strip is wrapped and compacted onto the tire blank by the winding machine, the operator adheres the end of the rubber strip to the outer periphery of the tire blank, and then the X-axis drive assembly, Y-axis drive assembly and rotary drive assembly on the winding mechanism cooperate to ensure that the pressure wheel group at the front end of the winding machine head always compacts the rubber strip onto the rotating tire blank, thereby wrapping the rubber strip around the outer periphery of the tire blank.

[0005] At present, the speed of this type of wrapping machine to wrap the rubber strip is roughly 30-120m / min, and some large and giant tire blanks are large in size. When the wrapping machine wraps the rubber strip on the above-mentioned tire blanks, it usually takes a long time. To address this problem, our company tried to increase the amount of rubber wound per unit time by adjusting the width or thickness of the wrapped rubber strip. However, due to the excessive thickness and width of the rubber strip, it is easy for the rubber strip to be loosely wound or bubbles to appear, affecting the winding quality of the rubber strip around the tire blank. Therefore, there is room for improvement. Summary of the invention

[0006] In order to improve the strip winding efficiency of the winding machine, the present application provides a double-head synchronous radial tire winding machine.

[0007] The present application provides a double-head synchronous radial tire winding machine, which adopts the following technical solution: A double-head synchronous radial tire winding machine comprises a base frame and two winding mechanisms, wherein the winding mechanism comprises a middle frame, a rotating seat and a winding machine head; the middle frame is slidably connected to the base frame via an X-axis driving assembly, the rotating seat is slidably connected to the middle frame via a Y-axis driving assembly, the winding machine head is vertically rotatably connected to the rotating seat via a rotating driving assembly, and a pressure wheel group for compacting the rubber strip is installed at the front end of the winding machine head; two tensioning assemblies are arranged on the base frame corresponding to the two winding mechanisms, and the output end of the tensioning assembly is connected to the corresponding winding mechanism, and the tensioning assembly comprises a V-shaped frame, and the V-shaped frame is evenly rotated along its own contour direction and is connected to a plurality of tensioning rollers, and the tensioning rollers are used for winding the rubber strip.

[0008] By adopting the above technical scheme, when the winding machine is in operation, the X-axis drive assembly, the Y-axis drive assembly and the rotary drive assembly on the two winding mechanisms can cooperate with each other, so that the flat pressure rollers on the corresponding winding machine heads can press the rubber strips onto the rotating tire blank at the same time, which effectively improves the winding efficiency of the rubber strips compared with the traditional winding machines; through the setting of the tensioning assembly, the rubber strips are wound on the tensioning rollers at various locations of the V-shaped frame, and the rubber strips are tensioned and supported by a plurality of tensioning rollers, so that the rubber strips can remain relatively flat during the traction process, limiting the loosening or wrinkling of the rubber strips during the traction process, which is conducive to the rubber strips being wound more flatly and densely onto the tire blank.

[0009] Preferably, a bracket is also vertically supported on the base frame, and the bracket is provided with two lifting and conveying assemblies corresponding to the two tensioning assemblies, and the lifting and conveying assemblies are connected to the input end of the tensioning assembly; the lifting and conveying assembly includes a lifting rack supported on the bracket, and a lifting and conveying roller is rotatably connected to the lifting rack, and the lifting rack is also provided with a rotary drive component for driving the lifting and conveying roller to rotate.

[0010] By adopting the above technical solution and setting up the material lifting and conveying assembly, the rubber strip is wound on the corresponding material lifting and conveying roller before the winding machine is operated. During the subsequent operation of the winding machine, the corresponding material lifting and conveying roller is driven by the rotary driving member, and the rotating material lifting and conveying roller is used to assist in traction and conveying the rubber strip, thereby reducing the situation where the rubber strip is easily over-pulled due to the long transmission path.

[0011] Preferably, the bracket is provided with two material storage assemblies corresponding to the two material lifting and conveying assemblies, and the output end of the material storage assembly is connected with the material lifting and conveying assembly; the material storage assembly includes a material storage rack, an input roller, a material storage roller and an output roller, the material storage rack is supported in parallel on one side of the bracket, the input roller and the output roller are both rotatably connected to the top of the material storage rack, the material storage roller is vertically slidably connected to the material storage rack through a slide, and the material storage roller is located between the input roller and the output roller.

[0012] By adopting the above technical scheme, before the winding machine is operated, the rubber strip is wound around the input roller, the storage roller and the output roller in sequence, and the input roller, the storage roller and the output roller cooperate to assist in tensioning, supporting and storing a certain length of the rubber strip; during the operation of the winding machine, when the rotation speed of the lifting and conveying roller changes, resulting in a change in the traction force of the rubber strip, the storage roller and the slide seat on the storage assembly can slide up and down along the storage rack according to the change in the traction force of the rubber strip, which is conducive to making the storage roller always fit the corresponding rubber strip, and effectively reducing the rotation speed errors or failures of the two lifting and conveying rollers, which cause the rubber strip to detach from the storage roller and cause folding and adhesion.

[0013] Preferably, the material storage assembly also includes an annular connecting rope, which is vertically sleeved on the material storage rack, the slide is connected to the annular connecting rope, and the annular connecting rope is also connected to a buffer counterweight part, the slide and the buffer counterweight part are respectively located on opposite sides of the material storage rack, and the slide is heavier than the buffer counterweight part.

[0014] By adopting the above technical solution, the buffer counterweight part is used to balance the gravity of part of the slide and the storage roller, thereby reducing the excessive stretching of the rubber strip wound on the storage roller due to the weight of the slide and the storage roller, which is beneficial to keeping the rubber strip wound on the storage roller in a relatively stable and balanced state.

[0015] Preferably, elastic buffers are installed on the top and bottom of the storage rack, and the elastic buffers are arranged toward the slide seat.

[0016] By adopting the above technical solution, by supporting elastic buffers at both ends of the storage rack, the elastic buffers at both ends of the storage rack can be used to buffer and limit the storage roller and the slide seat, thereby reducing the situation in which the slide seat on the storage roller is separated from the storage rack due to excessive upward or downward movement during the subsequent operation of the winding machine.

[0017] Preferably, the buffer counterweight part includes a connecting sleeve and a counterweight block, the connecting sleeve is sleeved and fixed on the annular connecting rope, the outer periphery of the bottom end of the connecting sleeve is coaxially connected with an annular support plate, the outer periphery of the counterweight block is provided with a connecting notch for the connecting sleeve to be embedded, the counterweight block is sleeved on the connecting sleeve through the connecting notch and the counterweight block is overlapped on the annular support plate.

[0018] By adopting the above technical solution, the counterweight block can be detachably installed on the connecting sleeve, which makes it convenient to add or remove the counterweight block according to actual needs to adjust the overall weight of the buffer counterweight part so that the buffer counterweight part can better balance the weight of the slide seat and the storage roller.

[0019] Preferably, the top and bottom ends of the storage rack are rotatably connected to fixed pulleys, and the fixed pulleys are used for the annular connecting rope to be wound around so as to support the annular connecting rope away from the storage rack; annular limiting grooves are opened on the outer circumferences of the fixed pulleys, and the annular connecting rope is wound around the fixed pulleys and embedded in the annular limiting grooves.

[0020] By adopting the above technical scheme and setting a fixed pulley, on the one hand, the fixed pulley is used to reduce the friction between the annular connecting rope and the two ends of the storage rack, thereby reducing the wear of the annular connecting rope during the subsequent up and down sliding of the slide to pull the annular connecting rope; on the other hand, the fixed pulley can be used to guide and limit the annular connecting rope so that the annular connecting rope can always move along a fixed path, which is conducive to making the movement of both the slide and the counterweight block smoother and smoother.

[0021] Preferably, both ends of the V-shaped frame are vertically rotatably connected to the winding machine head and the bracket.

[0022] By adopting the above technical solution, on the one hand, the V-shaped frame can be stably supported on the base frame; on the other hand, during the subsequent operation of the winding machine, when the winding head is driven to move along the cross-sectional contour of the tire blank through the cooperation of the X-axis drive assembly, the Y-axis drive assembly and the rotary drive assembly, the V-shaped frame can adjust its own position angle in real time with the rotation of the winding head, so that the rubber strip passing through the tensioning assembly can enter the pressure wheel assembly at the front end of the winding head at a better angle, thereby reducing the distortion and excessive pulling of the rubber strip.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging two winding mechanisms on the bottom frame, in the subsequent process of winding the rubber strip by the winding machine, the two winding mechanisms can cooperate with the rotating tire blank to wrap the rubber strip and compact it on the tire blank, effectively improving the winding efficiency of the rubber strip around the tire blank.

[0024] 2. Through the setting of the material lifting and conveying assembly, the rubber strip is wound around the material lifting and conveying roller of the material lifting and conveying assembly. Later, during the operation of the winding machine, the corresponding material lifting and conveying roller is driven to rotate by the rotary driving member, and the rotating material lifting and conveying roller is used to assist in pulling the rubber strip, which is helpful to reduce the excessive stretching of the rubber strip when it is rotated and pulled by the tire blank due to the long conveying path.

[0025] 3. Through the setting of the storage component, after the rubber strip is wound on the input roller, storage roller and output roller of the storage component in sequence, a certain amount of rubber strip can be stored through the cooperation of the input roller, storage roller and output roller. At the same time, in the subsequent operation of the winding machine, when the rotation speed of the lifting and conveying roller changes, resulting in a change in the traction force of the rubber strip, the storage roller and the slide seat can slide up and down along the storage rack accordingly, so that the storage roller is always in contact with the rubber strip, thereby achieving tension support for the rubber strip and limiting the situation where the rubber strip is separated from the storage roller and folded and adhered. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a double-head synchronous radial tire winding machine according to an embodiment of the present application.

[0027] Figure 2 This is a schematic diagram used in the present application to illustrate the conveying of rubber strips by a double-head synchronous radial tire winding machine.

[0028] Figure 3 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0029] Figure 4 This is a schematic diagram of the structure of the material lifting and conveying component and the material storage component used in this application.

[0030] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0031] Figure 6 It is a schematic diagram of the structure of the counterweight part used to illustrate the embodiment of the present application.

[0032] Description of reference numerals: 1. Base frame; 11. Bracket; 2. Winding mechanism; 21. Middle frame; 22. Rotating seat; 23. Winding machine head; 24. Pressing wheel group; 3. Tensioning assembly; 31. V-shaped frame; 32. Tensioning roller; 4. Lifting and conveying assembly; 41. Lifting rack; 42. Lifting and conveying roller; 43. Rotary drive member; 5. Storage assembly; 51. Storage rack; 511. Slide rail; 512. Fixed pulley; 52. Input roller; 53. Storage roller; 531. Slide seat; 54. Output roller; 55. Ring connecting rope; 56. Buffer counterweight; 561. Connecting sleeve; 562. Ring supporting plate; 563. Counterweight block; 564. Connecting notch. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The present application embodiment discloses a double-head synchronous radial tire winding machine, referring to Figure 1 and Figure 2, including a base frame 1, on which two winding mechanisms 2 are arranged opposite to each other; the winding mechanism 2 includes a middle frame 21, a rotating seat 22 and a winding head 23; the middle frame 21 is slidably connected to the base frame 1 through an X-axis driving assembly; the rotating seat 22 is slidably connected to the middle frame 21 through a Y-axis driving assembly, and the winding head 23 is vertically connected to the rotating seat 22 through a rotating driving assembly; the front end of the winding head 23 is provided with a pressure wheel group 24 for compacting the rubber strip and a driving cylinder for driving the pressure wheel group 24 to move toward or away from the winding head 23. In this embodiment, the X-axis driving assembly and the Y-axis driving assembly are both electric screw modules, and the rotating driving assembly is a worm gear reduction motor.

[0035] Reference Figure 1 and Figure 2 , two tensioning assemblies 3 are arranged on the bottom frame 1 corresponding to the two winding mechanisms 2. The output end of the tensioning assembly 3 is connected to the winding machine head 23 of the corresponding winding mechanism 2; the tensioning assembly 3 includes a V-shaped frame 31, and the V-shaped frame 31 is provided with a plurality of tensioning rollers 32, and the tensioning rollers 32 are all horizontally rotatably connected to the V-shaped frame 31; the plurality of tensioning rollers 32 are evenly distributed along the contour direction of the V-shaped frame 31. The tensioning rollers 32 are used for winding the rubber strip. Through the above arrangement, before the rubber strip is subsequently wound and compacted by the winding machine, the rubber strip is sequentially wound on the plurality of tensioning rollers 32 on the V-shaped frame 31, and the plurality of tensioning rollers 32 on the V-shaped frame 31 are used to tension and support the rubber strip, which is beneficial to reduce the occurrence of wrinkles and looseness during the subsequent traction and transportation of the rubber strip.

[0036] The base frame 1 is also vertically connected to a bracket 11, which is arranged opposite to the two winding heads 23. The tensioning components 3 are all located between the bracket 11 and the corresponding winding heads 23. The two ends of the V-shaped frame 31 are respectively connected to the top of the bracket 11 and the top of the corresponding winding head 23 in a vertical rotation; the axis direction of the rotating shaft at both ends of the V-shaped frame 31 is arranged parallel to the axis direction of the rotating shaft of the winding head 23. Through the above arrangement, during the subsequent operation of the winding machine, when the X-axis driving component, the Y-axis driving component and the rotating driving component on the winding mechanism 2 cooperate to drive the pressure wheel group 24 at the front end of the winding head 23 to move along the outer contour of the tire embryo to compact the rubber strip around the tire embryo, the V-shaped frame 31 can change its own position angle as the winding head 23 rotates, so that the rubber strip can enter between the pressure wheel group 24 and the tire embryo at a better angle, reducing the pulling of the rubber strip due to the rotation of the winding head 23, which is conducive to the pressure wheel group 24 to compact the rubber strip around the tire embryo more closely.

[0037] Reference Figure 1 and Figure 3The bracket 11 is also provided with two material lifting and conveying assemblies 4 corresponding to the two tensioning assemblies 3, and the material lifting and conveying assemblies 4 are connected with the input end of the corresponding tensioning assemblies 3; the material lifting and conveying assembly 4 includes a material lifting frame 41, a material lifting and conveying roller 42 and a rotary driving member 43, the material lifting frame 41 is connected to the bracket 11, and the material lifting and conveying roller 42 is horizontally rotatably connected to the material lifting and conveying roller 42 for providing the rubber strip for winding; the material lifting and conveying roller 42 and the tensioning roller 32 are arranged in parallel with the axis direction of the rotating shaft, and the material lifting and conveying roller 42 is arranged lower than the tensioning roller 32 at the input end of the tensioning assembly 3; the rotary driving member 43 is drivingly connected to the material lifting and conveying roller 42, and is used to drive the material lifting and conveying roller 42 to rotate; in this embodiment, the rotary driving member 43 is a reduction motor.

[0038] By setting the material lifting and conveying component 4, before the winding machine is operated, the rubber strip to be wound is wound on the material lifting and conveying roller 42. During the operation of the winding machine, the corresponding material lifting and conveying roller 42 is driven to rotate by the rotary driving member 43, and the rotating material lifting and conveying roller 42 is used to assist in traction and conveying the rubber strip, so that the rubber strip can be conveyed to the tensioning component 3 more smoothly and stably, thereby reducing the situation in which the rubber strip is easily pulled due to the long conveying path during the subsequent rotation and traction of the tire blank.

[0039] Reference Figure 1 and Figure 3 The bracket 11 is provided with two material storage components 5 corresponding to the two material lifting and conveying components 4. The output end of the material storage component 5 is connected with the material lifting and conveying component 4. The material storage component 5 includes a storage rack 51, an input roller 52, a storage roller 53 and an output roller 54. The storage rack 51 is located on the side of the bracket 11 away from the tensioning component 3 and the storage rack 51 is vertically connected to the bracket 11. Both the input roller 52 and the output roller 54 are horizontally rotatably connected to the top of the storage rack 51. The axis direction of the rotation axis of the input roller 52 and the output roller 54 are both set parallel to the axis direction of the rotation axis of the material lifting and conveying roller 42, and the input roller 52 and the output roller 54 are set higher than the material lifting and conveying roller 42. A slide seat 531 is provided on the storage roller 53, and the storage roller 53 is rotatably connected to the slide seat 531. The storage roller 53, the input roller 52 and the output roller 54 are arranged in parallel with the axis direction of the rotating shaft. The storage rack 51 is connected with a slide rail 511 corresponding to the slide seat 531. The slide rail 511 is arranged parallel to the storage rack 51, and the slide rail 511 is located between the input roller 52 and the output roller 54; the storage roller 53 is slidably connected to the slide rail 511 through the slide seat 531.

[0040] By setting the storage component 5, in the early stage, before the winding machine is operated, the rubber strip to be wound extruded by the screw extruder is sequentially sleeved on the input roller 52, the storage roller 53 and the output roller 54 to cooperate in storing a certain length of rubber strip; at the same time, when the rotation speed of the feeding and conveying roller 42 changes, resulting in a change in the traction force of the rubber strip, the storage roller 53 and the slide seat 531 can move up and down along the slide rail 511 to ensure that the storage roller 53 always maintains a fit state with the rubber strip, effectively reducing the subsequent speed error of the two feeding and conveying rollers 42 or the failure of the feeding and conveying roller 42, resulting in the rubber strip detaching from the storage roller 53 due to the change in traction force, and the occurrence of wrinkles and adhesion.

[0041] Reference Figure 4 and Figure 5 The storage assembly 5 also includes an annular connecting rope 55; the annular connecting rope 55 is vertically sleeved on the storage rack 51; the two opposite sides of the top and the two opposite sides of the bottom of the storage rack 51 are horizontally rotatably connected with fixed pulleys 512, the axis direction of the rotating shaft of the fixed pulley 512 is perpendicular to the axis direction of the rotating shaft of the storage roller 53, the fixed pulley 512 is used for the annular connecting rope 55 to be wound around to support the annular connecting rope 55 away from the storage rack 51, and the outer circumference of the fixed pulley 512 is coaxially provided with an annular limiting groove for the annular connecting rope 55 to be embedded. The annular connecting rope 55 is wound around the fixed pulleys 512 at various locations and embedded in the annular limiting grooves on the outer circumference of the fixed pulley 512.

[0042] Reference Figure 3 and Figure 4 , the annular connecting rope 55 is connected to the slide 531; the annular connecting rope 55 is also connected to a buffer counterweight 56, which is located on the side of the storage rack 51 away from the slide 531, and the slide 531 is heavier than the buffer counterweight 56. Through the arrangement of the annular connecting rope 55 and the buffer counterweight 56, the buffer counterweight 56 ​​can balance part of the weight of the slide 531 and the storage roller 53 during the subsequent operation of the wrapping machine, thereby reducing the excessive pulling of the rubber strip due to the weight of the slide 531 and the storage roller 53.

[0043] Reference Figure 4 and Figure 6 The buffer counterweight part 56 includes a connecting sleeve 561 and a counterweight 563; the connecting sleeve 561 is coaxially sleeved on the annular connecting rope 55, and the outer periphery of the bottom end of the connecting sleeve 561 is coaxially connected with an annular support plate 562; the outer periphery of the counterweight 563 is provided with a connecting notch 564 for the connecting sleeve 561 to be inserted, and the counterweight 563 is sleeved on the outer periphery of the connecting sleeve 561 through the connecting notch 564, and the bottom of the counterweight 563 is overlapped on the annular connecting plate. Through the above arrangement, the overall weight of the buffer counterweight part 56 can be adjusted. In actual use, the number of counterweights 563 can be increased or decreased as needed to adjust the overall weight of the buffer counterweight part 56, which is conducive to better balancing the deadweight of part of the storage roller 53 and the slide 531 through the buffer counterweight part 56.

[0044] The top and bottom of the material storage rack 51 are connected to supports, and elastic buffers are installed on the supports. The elastic buffers are located in the moving path of the slide 531 and are arranged toward the slide 531. Through the above arrangement, the elastic buffers at both ends of the material storage rack 51 are used to limit the travel of the slide 531, so as to reduce the situation in which the slide 531 is separated from the material storage rack 51 due to excessive upward or downward movement during the sliding process along the slide rail 511 of the material storage rack 51.

[0045] The implementation principle of the embodiment of the present application is: Before the winding machine is operated, the operator will first wind the rubber strips extruded by the two screw extruders on the corresponding material storage assembly 5, the material lifting and conveying assembly 4 and the rollers of the tensioning assembly 3 in sequence, and then pull and bond the ends of the rubber strips to between the pressure wheel group 24 at the front end of the winding head 23 and the tire blank to be processed, and finally bond and fix the ends of the rubber strips to the outer periphery of the tire blank, and compact the rubber strips to the outer periphery of the tire blank through the pressure wheel group 24 at the front end of the winding head 23.

[0046] When the wrapping machine is running, the X-axis drive assembly, the Y-axis drive assembly and the rotation drive assembly on the two wrapping mechanisms 2 cooperate to drive the pressure wheel assembly 24 at the front end of the wrapping head 23 to move along the cross-sectional contour of the tire blank, so as to cooperate with the rotating tire blank to wrap and compact the rubber strip to the periphery of the tire blank, thereby realizing the wrapping of the rubber strip around the tire blank. The two wrapping mechanisms 2 work simultaneously, which effectively improves the winding efficiency of the rubber strip around the tire blank.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double-head synchronous radial tire winding machine, characterized in that: The invention comprises a base frame (1) and two winding mechanisms (2), wherein the winding mechanism (2) comprises a middle frame (21), a rotating seat (22) and a winding head (23); the middle frame (21) is slidably connected to the base frame (1) via an X-axis driving assembly, the rotating seat (22) is slidably connected to the middle frame (21) via a Y-axis driving assembly, the winding head (23) is vertically rotatably connected to the rotating seat (22) via a rotating driving assembly, and a pressure wheel group (24) for compacting the rubber strip is installed at the front end of the winding head (23); the base frame (1) is provided with two tensioning assemblies (3) corresponding to the two winding mechanisms (2), the output end of the tensioning assembly (3) is connected to the corresponding winding mechanism (2), the tensioning assembly (3) comprises a V-shaped frame (31), the V-shaped frame (31) is evenly rotated along its own contour direction and is connected to a plurality of tensioning rollers (32), and the tensioning rollers (32) are used for winding the rubber strip.

2. A double-head synchronous radial tire winding machine according to claim 1, characterized in that: A bracket (11) is also vertically supported on the base frame (1), and the bracket (11) is provided with two material lifting and conveying assemblies (4) corresponding to the two tensioning assemblies (3), and the material lifting and conveying assemblies (4) are connected to the input end of the tensioning assembly (3); the material lifting and conveying assembly (4) includes a material lifting frame (41) supported on the bracket (11), and a material lifting and conveying roller (42) is rotatably connected to the material lifting frame (41), and the material lifting frame (41) is also provided with a rotary driving member (43) for driving the material lifting and conveying roller (42) to rotate.

3. A double-head synchronous radial tire winding machine according to claim 2, characterized in that: The support (11) is provided with two material storage components (5) corresponding to the two material lifting and conveying components (4), and the output end of the material storage component (5) is connected with the material lifting and conveying component (4); the material storage component (5) comprises a material storage rack (51), an input roller (52), a material storage roller (53) and an output roller (54); the material storage rack (51) is supported in parallel on one side of the support (11); the input roller (52) and the output roller (54) are both rotatably connected to the top of the material storage rack (51); the material storage roller (53) is vertically slidably connected to the material storage rack (51) through a slide seat (531), and the material storage roller (53) is located between the input roller (52) and the output roller (54).

4. A double-head synchronous radial tire winding machine according to claim 3, characterized in that: The material storage assembly (5) further comprises an annular connecting rope (55), wherein the annular connecting rope (55) is vertically sleeved on the material storage rack (51), the slide seat (531) is connected to the annular connecting rope (55), the annular connecting rope (55) is further connected to a buffer counterweight portion (56), the slide seat (531) and the buffer counterweight portion (56) are respectively located on opposite sides of the material storage rack (51), and the slide seat (531) is heavier than the buffer counterweight portion (56).

5. The double-head synchronous radial tire winding machine according to claim 3 is characterized in that: Elastic buffers are installed on the top and bottom of the material storage rack (51), and the elastic buffers are arranged toward the slide seat (531).

6. A double-head synchronous radial tire winding machine according to claim 4, characterized in that: The buffer counterweight portion (56) comprises a connecting sleeve (561) and a counterweight block (563); the connecting sleeve (561) is sleeved and fixed on the annular connecting rope (55); an annular support plate (562) is coaxially connected to the outer periphery of the bottom end of the connecting sleeve (561); a connecting notch (564) for the connecting sleeve (561) to be embedded is provided on the outer periphery of the counterweight block (563); the counterweight block (563) is sleeved on the connecting sleeve (561) through the connecting notch (564) and the counterweight block (563) is overlapped on the annular support plate (562).

7. The double-head synchronous radial tire winding machine according to claim 3, characterized in that: The top and bottom ends of the material storage rack (51) are rotatably connected to fixed pulleys (512), and the fixed pulleys (512) are used for winding the annular connecting rope (55) so as to support the annular connecting rope (55) away from the material storage rack (51); an annular limiting groove is provided on the outer circumference of the fixed pulley (512), and the annular connecting rope (55) is wound around the fixed pulley (512) and embedded in the annular limiting groove.

8. The double-head synchronous radial tire winding machine according to claim 2, characterized in that: The two ends of the V-shaped frame (31) are respectively connected to the winding machine head (23) and the bracket (11) in a vertically rotatable manner.

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