A double-headed synchronous meridian tire wrapping machine

Abstract

This application relates to the technical field of tire production equipment. Aiming at the problem of low winding efficiency of rubber strips by traditional winding machines, a double-head synchronous meridian tire winding machine is proposed, which includes a chassis and two winding mechanisms. The winding mechanism includes a middle frame, a rotating seat and a winding headstock; the middle frame is slidably connected to the chassis through an X-axis drive assembly, the rotating seat is slidably connected to the middle frame through a Y-axis drive assembly, the winding headstock is vertically rotatably connected to the rotating seat through a rotation drive assembly, and a pressing wheel group for compacting the rubber strip is installed at the front end of the winding headstock; two tensioning assemblies are arranged on the chassis corresponding to the two winding mechanisms, the output end of the tensioning assembly is connected to the corresponding winding mechanism, the tensioning assembly includes a V-shaped frame, and a plurality of tensioning rollers are evenly rotatably connected to the V-shaped frame along its contour direction. This application has the effect of improving the winding efficiency of the rubber strip on the outer periphery of the tire embryo.

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:

[0008] A double-headed synchronous meridian tire winding machine includes a chassis and two winding mechanisms. The winding mechanism includes a middle frame, a rotating seat, and a winding headstock. The middle frame is slidably connected to the chassis through an X-axis driving component. The rotating seat is slidably connected to the middle frame through a Y-axis driving component. The winding headstock is vertically rotatably connected to the rotating seat through a rotating driving component. A pressing wheel set for compacting the rubber strip is installed at the front end of the winding headstock. Two tensioning components are arranged on the chassis corresponding to the two winding mechanisms. The output end of the tensioning component is connected to the corresponding winding mechanism. The tensioning component includes a V-shaped frame. A plurality of tensioning rollers are evenly rotatably connected to the V-shaped frame along its contour direction. The tensioning rollers are used for the rubber strip to be wound around.

[0009] By adopting the above technical solutions, when the winding machine is running, the X-axis driving component, Y-axis driving component, and rotating driving component on each of the two winding mechanisms cooperate with each other, so that the flat pressing rollers on the corresponding winding headstock can simultaneously press the rubber strip onto the rotating tire blank. Compared with the traditional winding machine, the winding efficiency of the rubber strip is effectively improved. Through the setting of the tensioning component, the rubber strip is wound around the tensioning rollers at various places of the V-shaped frame, and a plurality of tensioning rollers are used to tension and support the rubber strip, so that the rubber strip can maintain a relatively flat state during the traction process, restricting the rubber strip from becoming loose or wrinkled during the traction process, which is beneficial for the rubber strip to be wound more smoothly and densely onto the tire blank.

[0010] Preferably, a bracket is vertically supported on the chassis. Two material lifting and conveying components are arranged on the bracket corresponding to the two tensioning components. The material lifting and conveying component is connected to the input end of the tensioning component. The material lifting and conveying component includes a material lifting frame supported on the bracket. A material lifting and conveying roller is rotatably connected to the material lifting frame. The material lifting frame is also provided with a rotary driving part for driving the material lifting and conveying roller to rotate.

[0011] By adopting the above technical solutions, through the setting of the material lifting and conveying component, before the winding machine runs, the rubber strip is wound around the corresponding material lifting and conveying roller. During the subsequent running process of the winding machine, the corresponding material lifting and conveying roller is driven by the rotary driving part, and the rotating material lifting and conveying roller is used to assist in traction and conveying the rubber strip, reducing the situation that the rubber strip is easily over-pulled due to the too long conveying path.

[0012] Preferably, two storage components are arranged on the bracket corresponding to the two material lifting and conveying components. The output end of the storage component is connected to the material lifting and conveying component. The storage component includes a storage frame, an input roller, a storage roller, and an output roller. The storage frame is horizontally supported on one side of the bracket. The input roller and the output roller are both rotatably connected to the top of the storage frame. The storage roller is vertically slidably connected to the storage frame through a sliding seat, and the storage roller is located between the input roller and the output roller.

[0013] By adopting the above technical solution, before the winding machine runs, the rubber strip is wound around the input roller, the storage roller and the output roller in sequence, and the cooperation among the input roller, the storage roller and the output roller is used to assist in tensioning, supporting and storing a certain length of rubber strip; during the operation of the winding machine, when the rotational speed of the material lifting and conveying roller changes, resulting in a change in the traction force of the rubber strip, the storage roller and the sliding seat on the storage component can slide up and down along the storage rack according to the change in the traction force of the rubber strip, which is beneficial to keep the storage roller always in contact with the corresponding rubber strip, effectively reducing the situation that the rotational speed of the two material lifting and conveying rollers has an error or a fault, resulting in the rubber strip breaking away from the storage roller and causing folding and sticking.

[0014] Preferably, the storage component further includes an annular connecting rope, the annular connecting rope is vertically sleeved on the storage rack, the sliding seat is connected to the annular connecting rope, the annular connecting rope is also connected with a buffer counterweight part, the sliding seat and the buffer counterweight part are respectively located on opposite sides of the storage rack, and the sliding seat is set to be heavier than the buffer counterweight part.

[0015] By adopting the above technical solution, the buffer counterweight part is used to balance part of the gravity of the sliding seat and the storage roller, reducing the situation that the rubber strip wound around the storage roller is overstretched due to the self-weight of the sliding seat and the storage roller, which is beneficial to keep the rubber strip wound around the storage roller in a relatively stable and balanced state.

[0016] Preferably, elastic buffers are installed at both the top and the bottom of the storage rack, and the elastic buffers are all arranged towards the sliding seat.

[0017] By adopting the above technical solution, by providing 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 sliding seat, reducing the situation that the sliding seat on the storage roller breaks away from the storage rack due to excessive upward or downward movement during the subsequent operation of the winding machine.

[0018] 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, an annular support plate is coaxially connected to the outer periphery of the bottom end of the connecting sleeve, a connecting notch for the connecting sleeve to be embedded is formed in the outer periphery of the counterweight block, and the counterweight block is sleeved on the connecting sleeve through the connecting notch and the counterweight block is lapped on the annular support plate.

[0019] By adopting the above technical solution, the counterweight block is detachably installed on the connecting sleeve, which is convenient to increase or decrease 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 self-weight of the sliding seat and the storage roller.

[0020] Preferably, fixed pulleys are rotatably connected to both the top and bottom ends of the storage rack. The fixed pulleys are used for winding the annular connecting rope to keep the annular connecting rope away from the storage rack. Annular limiting grooves are formed on the outer circumferences of the fixed pulleys. The annular connecting rope is wound around the fixed pulleys and embedded in the annular limiting grooves.

[0021] By adopting the above technical solution, due to the arrangement of the fixed pulleys, on the one hand, the friction between the annular connecting rope and the two ends of the storage rack is reduced by the fixed pulleys, and during the subsequent process of the sliding seat sliding up and down to pull the annular connecting rope, the situation of wear of the annular connecting rope is reduced. On the other hand, the fixed pulleys 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 beneficial to making the movement of both the sliding seat and the counterweight more stable and smooth.

[0022] Preferably, the two ends of the V-shaped frame are vertically and rotatably connected to the winding head and the bracket respectively.

[0023] By adopting the above technical solution, on the one hand, the V-shaped frame is stably supported on the chassis. 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 by the cooperation of the X-axis drive assembly, the Y-axis drive assembly and the rotation 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 pressing wheel group at the front end of the winding head at a better angle, reducing the situation of the rubber strip being twisted and overstretched.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By arranging two winding mechanisms on the chassis, during the subsequent process of winding the rubber strip by the winding machine, the two winding mechanisms can cooperate to wind and press the rubber strip on the tire blank by the rotating tire blank, effectively improving the winding efficiency of the rubber strip on the outer circumference of the tire blank.

[0026] 2. Through the setting of the material lifting and conveying assembly, after the rubber strip is wound around the material lifting and conveying roller of the material lifting and conveying assembly, during the subsequent 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 beneficial to reducing the situation that the rubber strip is overstretched when being rotated and pulled by the tire blank due to the too long conveying path.

[0027] 3. By setting up the material storage component, after the rubber strip is wound around the input roller, material storage roller, and output roller of the material storage component in sequence, a certain amount of rubber strip can be stored through the cooperation of the input roller, material storage roller, and output roller. At the same time, during the subsequent operation of the winding machine, when the rotational speed of the material lifting and conveying roller changes, resulting in a change in the traction force of the rubber strip, the material storage roller and the sliding seat can slide up and down along the material storage rack, so that the material storage roller always adheres to the rubber strip, realizing the tension support for the rubber strip and restricting the rubber strip from detaching from the material storage roller and causing folding and adhesion. Brief Description of the Drawings

[0028] Figure 1 is a schematic diagram showing the overall structure of the double-head synchronous radial tire winding machine according to an embodiment of the present application.

[0029] Figure 2 is a schematic diagram showing the conveyance of the rubber strip by the double-head synchronous radial tire winding machine according to the present application.

[0030] Figure 3 is Figure 1 an enlarged schematic diagram of part A in

[0031] Figure 4 is a schematic diagram showing the structures of the material lifting and conveying component and the material storage component according to the present application.

[0032] Figure 5 is Figure 4 an enlarged schematic diagram of part B in

[0033] Figure 6 is a schematic diagram showing the structure of the counterweight part according to an embodiment of the present application.

[0034] Description of the Reference Numerals:

[0035] 1. Chassis; 11. Bracket; 2. Winding mechanism; 21. Middle frame; 22. Rotary seat; 23. Winding head; 24. Pressing wheel group; 3. Tensioning component; 31. V-shaped frame; 32. Tensioning roller; 4. Material lifting and conveying component; 41. Material lifting frame; 42. Material lifting and conveying roller; 43. Rotary driving member; 5. Material storage component; 51. Material storage rack; 511. Slide rail; 512. Fixed pulley; 52. Input roller; 53. Material storage roller; 531. Sliding seat; 54. Output roller; 55. Ring-shaped connecting rope; 56. Buffer counterweight part; 561. Connecting sleeve; 562. Ring-shaped support plate; 563. Counterweight block; 564. Connecting notch. Detailed Description of the Embodiment

[0036] The following further elaborates on the present application in conjunction with the attached Figures 1-6 drawings.

[0037] An embodiment of the present application discloses a double-head synchronous radial tire winding machine. Referring to Figure 1 and Figure 2, including a chassis 1, on which two winding mechanisms 2 are arranged, and the two winding mechanisms 2 are arranged oppositely; 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 chassis 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 rotatably connected to the rotating seat 22 through a rotating driving assembly; a pressing wheel group 24 for compacting the rubber strip and a driving cylinder for driving the pressing wheel group 24 to move towards or away from the winding head 23 are arranged at the front end of the winding head 23. In this embodiment, both the X-axis driving assembly and the Y-axis driving assembly are electric screw modules, and the rotating driving assembly is a worm and worm gear reduction motor.

[0038] Refer to Figure 1 and Figure 2 , two tensioning assemblies 3 are arranged on the chassis 1 corresponding to the two winding mechanisms 2. The output end of the tensioning assembly 3 is connected to the winding head 23 of the corresponding winding mechanism 2; the tensioning assembly 3 includes a V-shaped frame 31, and a plurality of tensioning rollers 32 are arranged on the V-shaped frame 31, 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 the rubber strip to be wound around. Through the above settings, before the rubber strip is wound and compacted by the winding machine subsequently, the rubber strip is wound around the plurality of tensioning rollers 32 on the V-shaped frame 31 in sequence, and the plurality of tensioning rollers 32 on the V-shaped frame 31 are used for tensioning and supporting the rubber strip, which is beneficial to reducing the occurrence of wrinkles and slack during the subsequent traction and conveying process of the rubber strip.

[0039] A support 11 is also vertically connected to the chassis 1, and the support 11 is arranged oppositely to the two winding heads 23. The tensioning assemblies 3 are all located between the support 11 and the corresponding winding heads 23, and both ends of the V-shaped frame 31 are vertically rotatably connected to the top of the support 11 and the top of the corresponding winding head 23 respectively; the axis directions of the rotating shafts at both ends of the V-shaped frame 31 are arranged parallel to the axis direction of the rotating shaft of the winding head 23. Through the above settings, during the subsequent operation of the winding machine, when the X-axis driving assembly, the Y-axis driving assembly and the rotating driving assembly on the winding mechanism 2 cooperate to drive the pressing wheel group 24 at the front end of the winding head 23 to move along the outer contour of the tire blank in a curve to compact the rubber strip on the outer periphery of the tire blank, the V-shaped frame 31 can change its own position angle with the rotation of the winding head 23, so that the rubber strip can enter between the pressing wheel group 24 and the tire blank at a better angle, reducing the pulling of the rubber strip due to the rotation of the winding head 23, which is beneficial to the pressing wheel group 24 to more closely and tightly compact the rubber strip on the outer periphery of the tire blank.

[0040] Refer to 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.

[0041] 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.

[0042] 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.

[0043] Through the arrangement of the material storage assembly 5, before the winding machine operates in the early stage, the rubber strips to be wound extruded by the screw extruder are sequentially sleeved on the input roller 52, the material storage roller 53 and the output roller 54, and the three cooperate to store a certain length of rubber strips. At the same time, subsequently, when the rotational speed of the material lifting and conveying roller 42 changes, resulting in a change in the traction force of the rubber strip, the material storage roller 53 and the sliding seat 531 can move up and down along the slide rail 511 accordingly, so as to ensure that the material storage roller 53 always remains in contact with the rubber strip, effectively reducing the subsequent situation where the rubber strip detaches from the material storage roller 53 due to the rotational speed error of the two material lifting and conveying rollers 42 or the failure of the material lifting and conveying roller 42, and causing wrinkling and bonding.

[0044] Referring to Figure 4 and Figure 5 , the material storage assembly 5 further includes an annular connecting rope 55; the annular connecting rope 55 is vertically sleeved on the material storage rack 51; fixed pulleys 512 are horizontally rotatably connected to opposite sides of the top and opposite sides of the bottom of the material storage rack 51. The axis direction of the rotation axis of the fixed pulley 512 is perpendicular to the axis direction of the rotation axis of the material 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 material storage rack 51. Annular limiting grooves for the annular connecting rope 55 to be embedded are coaxially formed on the outer periphery of the fixed pulley 512. The annular connecting rope 55 is wound around each fixed pulley 512 and is embedded in the annular limiting groove on the outer periphery of the fixed pulley 512.

[0045] Referring to Figure 3 and Figure 4 , the annular connecting rope 55 is connected to the sliding seat 531; the annular connecting rope 55 is further connected with a buffer counterweight part 56. The buffer counterweight part 56 is located on the side of the material storage rack 51 away from the sliding seat 531, and the sliding seat 531 is set to be heavier than the buffer counterweight part 56. Through the arrangement of the annular connecting rope 55 and the buffer counterweight part 56, during the operation of the winding machine subsequently, part of the self-weight of the sliding seat 531 and the material storage roller 53 can be balanced by the buffer counterweight part 56, reducing the situation where the rubber strip is over-pulled due to the self-weight of the sliding seat 531 and the material storage roller 53.

[0046] Referring to Figure 4 and Figure 6 , the buffer counterweight part 56 includes a connecting sleeve 561 and a counterweight block 563; the connecting sleeve 561 is coaxially sleeved on the annular connecting rope 55, and 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 formed on the outer periphery of the counterweight block 563. The counterweight block 563 is sleeved on the outer periphery of the connecting sleeve 561 through the connecting notch 564, and the bottom of the counterweight block 563 is lapped on the annular connecting plate. Through the above arrangement, the overall weight of the buffer counterweight part 56 can be adjusted. During actual use, the number of counterweight blocks 563 can be increased or decreased according to needs to adjust the overall weight of the buffer counterweight part 56, which is beneficial to better balancing part of the self-weight of the material storage roller 53 and the sliding seat 531 through the buffer counterweight part 56.

[0047] Both the top and the bottom of the storage rack 51 are connected with supports, and elastic buffers are installed on the supports. The elastic buffers are all located on the moving path of the sliding seat 531 and are arranged towards the sliding seat 531. Through the above settings, the elastic buffers at both ends of the storage rack 51 are used to limit the stroke of the sliding seat 531, so as to reduce the situation that the sliding seat 531 disengages from the storage rack 51 during the process of sliding along the slide rail 511 of the storage rack 51 due to excessive upward or downward movement.

[0048] The implementation principle of the embodiment of the present application is as follows:

[0049] Before the winding machine runs, the operator first winds the rubber strips extruded by the two screw extruders around the respective rollers of the corresponding storage assembly 5, material lifting and conveying assembly 4, and tensioning assembly 3 in sequence, then traction-bonds the end of the rubber strip between the pressing wheel group 24 at the front end of the winding head 23 and the embryo to be processed, and finally bonds and fixes the end of the rubber strip on the outer periphery of the embryo, and presses the rubber strip on the outer periphery of the embryo through the pressing wheel group 24 at the front end of the winding head 23.

[0050] When the winding machine runs, the X-axis drive assembly, Y-axis drive assembly, and rotation drive assembly on the two winding mechanisms 2 cooperate to drive the pressing wheel group 24 at the front end of the winding head 23 to move along the cross-sectional contour of the embryo, so as to wind and press the rubber strip around the outer periphery of the embryo in cooperation with the rotating embryo, realizing the winding of the rubber strip around the outer periphery of the embryo. By the two winding mechanisms 2 working simultaneously, the winding efficiency of the rubber strip around the outer periphery of the embryo is effectively improved.

[0051] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within 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; The base frame (1) is also vertically supported by a bracket (11), 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) comprises 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; 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); 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).

2. A double-head synchronous radial tire winding machine according to claim 1, 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).

3. The double-head synchronous radial tire winding machine according to claim 1, 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).

4. The double-head synchronous radial tire winding machine according to claim 1, 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.

5. The double-head synchronous radial tire winding machine according to claim 1, 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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