A double-sided synchronous rolling welding mechanism for composite materials

Abstract

The application discloses a double-sided synchronous composite material rolling welding mechanism and belongs to the technical field of rolling welding machines. The mechanism comprises a supporting body, an adjusting assembly, a driving assembly and a synchronous assembly. The upper surface of the supporting body is fixedly connected with a supporting frame and a supporting seat, and the supporting frame is arranged in front of the supporting seat. The supporting seat is provided with four supporting seats, and the four supporting seats are arranged in two groups and are arranged in axial symmetry about the supporting frame. The mechanism can not only make two roller electrodes close to each other, but also adapt to composite materials with different thicknesses. The two roller electrodes can stably extrude the two sides of the composite material, thereby helping to synchronously weld the two sides. In addition, the roller can synchronously move with the roller electrode, thereby helping the symmetric surfaces of the two roller electrodes to be coplanar with the axial surface of the composite material, thereby helping to stably synchronously weld the two sides of the composite material, and thereby helping to improve the welding quality.

Description

Technical Field

[0001] This invention relates to the field of roll welding machine technology, specifically to a double-sided synchronous roll welding mechanism for composite materials. Background Technology

[0002] A roll welding machine is a machine used for roll welding, also known as circumferential seam welding. It uses a pair of roller electrodes instead of the cylindrical electrodes used for spot welding. The workpiece moves between the rollers, creating overlapping weld nuggets to seal the workpiece. Generally, an adjustable stroke cylinder is used for pressurization to avoid damage from collisions between the upper and lower electrodes. A three-phase stepless speed-regulating electrode drive ensures convenient and stable welding speed adjustment. Its ingenious and reasonable internal structure reduces heat generation that weakens welding performance. The silver bearing rotates and conducts excellent contact, minimizing energy conversion losses.

[0003] The existing roll welding mechanism of the roll welding machine still has some problems during use, specifically:

[0004] 1. Existing roll welding mechanisms are not convenient for uniform and synchronous welding of both sides of composite materials. This is because existing roll welding mechanisms rely on two cylinders to drive two roller electrodes to move, thereby extruding the composite material and welding simultaneously. However, the distance between the roller electrodes and the composite material is not the same during this process. This means that when the composite material is taut, the pressure exerted by the two roller electrodes on the composite material cannot be guaranteed to be the same when the two roller electrodes move to contact the composite material. Consequently, it is not possible to guarantee that both sides of the composite material are welded synchronously, which affects the welding quality.

[0005] 2. When using the existing roller welding mechanism, it is not convenient to automatically make the axial surface of the composite material welding part coplanar with the symmetrical surface of the two roller electrodes. In order to make the welding part of the composite material be welded on both sides simultaneously, it is necessary to adjust the welding part of the composite material to the symmetrical surface of the two roller electrodes. This requires adjusting the height of the roller supporting the composite material, which is inconvenient for operators.

[0006] Therefore, a double-sided synchronous composite material roll welding mechanism is needed to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a double-sided synchronous composite material roll welding mechanism to solve the problem mentioned in the background art that existing roll welding mechanisms are not convenient for double-sided synchronous welding of composite materials.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A double-sided synchronous composite material roll welding mechanism includes a support body, an adjustment component, a drive component, and a synchronization component. The upper surface of the support body is fixedly connected to a support frame and a support seat, with the support frame located behind the support seat. There are four support seats, arranged in two groups, and the two groups of support seats are symmetrically arranged about the axial plane of the support frame. Each group of support seats is connected to a guide roller through an adjustment component, and the adjustment component is connected to the upper surface of the support body through a drive component. The interior of the support frame is connected to the drive component through a synchronization component, and a roller electrode is connected to the synchronization component.

[0010] Furthermore, the drive assembly includes a spiral frame, a fixed plate, limiting rods, a triangular connecting plate, a triangular support plate, a lead screw, and a second servo motor. The upper surface of the support body is provided with a groove, and the second servo motor is installed in the groove. One end of the lead screw is coaxially fixedly connected to the shaft end of the second servo motor, and the lead screw thread passes through the spiral frame. The other end of the lead screw is bearing-connected to a protrusion on the upper surface of the support body. Four limiting rods are movably passed through the support frame, and the two ends of the four limiting rods are fixedly connected by two fixed plates respectively. A triangular connecting plate is installed on the fixed plate near the protrusion, and the inclined shaft of the triangular connecting plate is connected to a triangular support plate. The triangular support plate is fixedly connected to the spiral frame, and the lower surface of the spiral frame is slidably connected to the upper surface of the support body.

[0011] Furthermore, the four support seats are disposed on the inner side of the forming frame, and the axial surface of the guide roller is coplanar with the axial surface of the forming frame.

[0012] Furthermore, the inclined surface of the triangular connecting plate faces downwards, while the inclined surface of the triangular support plate faces upwards.

[0013] Furthermore, the adjustment assembly includes a first follower rod, a strip-shaped through groove, a first plate sleeve, a first movable plate, and a first oblique through groove. Each support base is provided with two parallel strip-shaped through grooves, and the two strip-shaped through grooves on the same support base are respectively penetrated by the upper middle end of the first follower rod. The lower end of the first follower rod is fixedly supported on the upper surface of the U-shaped frame, and the upper middle end of the first follower rod is slidably connected to the corresponding first oblique through groove after penetrating the strip-shaped through groove. The first oblique through groove is provided through both sides of the first movable plate, and the first movable plate is provided on both the upper and lower sides of the first plate sleeve. The first plate sleeve is connected to the first movable plate in a movable nesting manner, and the first plate sleeve is provided on each support base. The guide roller is provided on the opposite side of the first movable plate, and the guide roller is connected to the bearing of the first movable plate it is connected to.

[0014] Furthermore, the first follower rod has an F-shaped structure, and the outer diameter of the upper end of the first follower rod matches the inner diameter of the strip-shaped through groove.

[0015] Furthermore, the synchronization component includes a first servo motor, a motor frame, a shaft, a worm gear sleeve, a second movable plate, a second plate sleeve, a second oblique through groove, a second follower rod, a transmission shaft, and a worm wheel. The first servo motor is mounted on the upper surface of the support frame via the motor frame, and the shaft end of the first servo motor is coaxially and fixedly connected to the upper end of the shaft. The upper end of the shaft extends movably through to the top of the support frame. A worm gear sleeve is movably sleeved on the outer side of the shaft, and two worm gear sleeves are provided. The two worm gear sleeves are respectively meshed and connected to two worm wheels, and the worm wheels are keyed to the corresponding transmission shafts. The front and rear sides of the support frame are provided with strip-shaped openings, and... Two strip-shaped openings are each fixedly connected to a second plate sleeve. The upper and lower ends of the second plate sleeves are movably inserted into one end of a corresponding second movable plate. Each second movable plate is provided with a second oblique groove that passes through both sides of it. A second follower rod is slidably connected to the second oblique groove and is fixedly connected to a limit rod. One end of the drive shaft is bearing connected to the side of the second movable plate away from the guide roller, and the other end of the drive shaft is bearing through the side of the second movable plate near the guide roller. The other end of the drive shaft is coaxially connected to the roller electrode. The outer diameter of the roller electrode matches the outer diameter of the guide roller, and a pressure sensor is also provided on the guide roller.

[0016] Furthermore, the through holes for the shaft to pass through in the middle and on the worm sleeve are mutually matching prismatic shapes, and the lateral distance of the second oblique through groove is less than the minimum distance between the end of the second oblique through groove away from the worm sleeve and the worm sleeve.

[0017] Furthermore, the structure formed by the first plate sleeve, the first movable plate, and the first oblique through groove in the same group has the same shape as the structure formed by the second plate sleeve, the second movable plate, and the second oblique through groove, and the two groups of structures have the same height.

[0018] Furthermore, the two first oblique through slots in the same group form an "eight" shaped structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: This double-sided synchronous composite material roller welding mechanism not only brings the two roller electrodes closer together, and can adapt to composite materials of different thicknesses, but also allows the two roller electrodes to be close together, which can smoothly compress both sides of the composite material, thus facilitating synchronous welding on both sides. In addition, the rollers can move synchronously with the roller electrodes, which helps to make the symmetrical plane of the two roller electrodes coplanar with the axial plane of the composite material, thus facilitating stable synchronous welding on both sides of the composite material, thereby improving the welding quality.

[0020] 1. The movement of the circular frame will cause the triangular support plate to move synchronously with the triangular connecting plate, which in turn will cause the limiting rod to move synchronously. During the movement of the limiting rod, the second follower rod will move in the second oblique through groove, which will cause the two second movable plates in the same group to move closer or further apart, thereby adjusting the distance between the two roller electrodes to accommodate composite materials of different thicknesses. It will also ensure that the two roller electrodes exert the same pressure on the composite material, thus facilitating double-sided synchronous welding of the composite material.

[0021] 2. During the movement of the return frame, the first follower rod will slide in the strip groove and move in the first inclined groove. This will cause the first movable plates of the same group to move away from or towards each other, thereby adjusting the position of the guide roller. The guide roller will limit the composite material and ensure that the axial surface of the composite material is coplanar with the symmetrical plane of the two roller electrodes. This allows the two roller electrodes to press the composite material with the same extrusion force as they approach each other, avoiding deformation of the composite material and improving welding quality. Attached Figure Description

[0022] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0023] Figure 2 This is a rear-view stereoscopic structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the retaining frame and the shaft of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram of point A in the middle;

[0026] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram of point B;

[0028] Figure 7 This is a partial longitudinal section diagram of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram of point C;

[0030] Figure 9 This is a schematic diagram of the connection structure between the support base and the guide roller of the present invention;

[0031] Figure 10 For the present invention Figure 9 A magnified structural diagram of point D in the middle.

[0032] In the diagram: 1. Support body; 2. Support frame; 3. Support base; 4. First servo motor; 5. Motor frame; 6. Guide roller; 7. First follower rod; 8. Reverse frame; 9. Strip groove; 10. Fixed plate; 11. First plate sleeve; 12. First movable plate; 13. First oblique groove; 14. Shaft; 15. Worm sleeve; 16. Limiting rod; 17. Second movable plate; 18. Second plate sleeve; 19. Second oblique groove; 20. Second follower rod; 21. Triangular connecting plate; 22. Triangular support plate; 23. Roller electrode; 24. Lead screw; 25. Second servo motor; 26. Transmission shaft; 27. Worm gear. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-10 The present invention provides the following technical solution:

[0035] Example 1: To address the problem that conventional roll welding mechanisms cannot guarantee that the axial surface of the composite material is collinear with the symmetrical plane of the two rollers used for welding the composite material, thus failing to prevent deformation of the composite material during welding and consequently hindering welding quality improvement, the following technical solution is provided: a double-sided synchronous roll welding mechanism for composite materials, comprising a support body 1, an adjustment component, a drive component, and a synchronization component. A support frame 2 and a support seat 3 are fixedly connected to the upper surface of the support body 1, with the support frame 2 positioned behind the support seat 3. Four support seats 3 are provided, arranged in two groups, and the two groups of support seats 3 are symmetrically arranged about the axial surface of the support frame 2. Each group of support seats 3 is connected to a guide roller 6 via an adjustment component, and the adjustment component is connected to the upper surface of the support body 1 via a drive component. The interior of the support frame 2 is connected to the drive component via a synchronization component, and a roller electrode 23 is connected to the synchronization component.

[0036] The drive assembly includes a ring frame 8, a fixed plate 10, limit rods 16, a triangular connecting plate 21, a triangular support plate 22, a lead screw 24, and a second servo motor 25. The upper surface of the support body 1 has a groove, and the second servo motor 25 is installed in the groove. One end of the lead screw 24 is coaxially fixedly connected to the shaft end of the second servo motor 25, and the lead screw 24 is threaded through the ring frame 8. The other end of the lead screw 24 is bearing-connected to a protrusion on the upper surface of the support body 1. Four limit rods 16 are movably inserted through the support frame 2, and the two ends of the four limit rods 16 are fixedly connected by two fixed plates 10 respectively. A triangular connecting plate 21 is installed on the fixed plate 10 near the protrusion, and the inclined surface of the triangular connecting plate 21 is shaft-connected to the triangular support plate 22. The support plate 22 is fixedly connected to the spiral frame 8. The lower surface of the spiral frame 8 is slidably connected to the upper surface of the support body 1. The operation of the second servo motor 25 drives the lead screw 24 to rotate, causing the spiral frame 8, which is threaded to it, to move. During the movement of the spiral frame 8, the triangular support plate 22 connected to it and the first follower rod 7 on the adjustment assembly move synchronously, and drive the structure composed of the fixed plate 10, the limit rod 16 and the triangular connecting plate 21 to move synchronously. The four support seats 3 are set inside the spiral frame 8, and the axial surface of the guide roller 6 is coplanar with the axial surface of the spiral frame 8. The reasonable setting of the position of the spiral frame 8 can not only ensure the stability of the structure, but also improve the aesthetics of the structure. The inclined surface of the triangular connecting plate 21 is inclined downward, and the inclined surface of the triangular support plate 22 is inclined upward. By setting the inclined surfaces of the triangular connecting plate 21 and the triangular support plate 22, the stability of the structure formed by the triangular connecting plate 21 and the triangular support plate 22 can be improved, thereby ensuring that the triangular connecting plate 21 and the triangular support plate 22 stably drive the fixed plate 10 and the limiting rod 16 to move synchronously. The adjustment component includes a first follower rod 7, a strip-shaped through groove 9, a first plate sleeve 11, a first movable plate 12, and a first inclined through groove 13. Each support base 3 is provided with two parallel strip-shaped through grooves 9, and the two strip-shaped through grooves 9 on the same support base 3 are respectively penetrated by the upper middle end of the first follower rod 7. The lower end of the first follower rod 7 is fixedly supported on the upper surface of the circular frame 8, and the upper middle end of the first follower rod 7 slides and connects to the corresponding first inclined through groove 9 after penetrating the strip-shaped through groove 9. Within the inclined through groove 13, the first inclined through groove 13 extends through both sides of the first movable plate 12, and the first movable plate 12 is provided on both the upper and lower sides of the first plate sleeve 11. The first plate sleeve 11 is connected to the first movable plate 12 in a movable nesting manner, and the first plate sleeve 11 is provided on each support seat 3. Guide rollers 6 are provided on the opposite sides of the first movable plate 12, and the guide rollers 6 are connected to the first movable plate 12 by bearings. When the first follower rod 7 moves relative to the strip through groove 9 and the first inclined through groove 13, it can cause the first movable plates 12 in the same group to move away from or towards each other, thereby helping the two guide rollers 6 in the same group to move away from or towards each other, which helps to ensure that the axial surface of the composite material welding part is coplanar with the symmetrical plane of the two roller electrodes 23.This allows the welded portion of the composite material to remain horizontal during welding, preventing deformation during the cooling phase and thus improving weld quality. The first follower rod 7 has an F-shaped structure, and the outer diameter of its upper end matches the inner diameter of the strip-shaped groove 9. This facilitates the movement of a single first follower rod 7, causing the first movable plates 12 in the same group to move away from or towards each other.

[0037] Example 2: To address the problem that conventional roll welding mechanisms cannot move the two electrodes closer to each other at the same speed, thus hindering stable synchronous welding of both sides of composite materials, a synchronization component is specifically included: a first servo motor 4, a motor frame 5, a shaft 14, a worm gear sleeve 15, a second movable plate 17, a second plate sleeve 18, a second oblique through groove 19, a second follower rod 20, a transmission shaft 26, and a worm wheel 27. The first servo motor 4 is mounted on the upper surface of the support frame 2 via the motor frame 5, and the shaft end of the first servo motor 4 is coaxially fixedly connected to the upper end of the shaft 14. The upper end of the shaft 14 extends movably through to the top of the support frame 2. A worm gear sleeve 15 is movably fitted on the outer side of the shaft 14, and two worm gears are provided in the worm gear sleeve 15. Sleeve 15 is respectively meshed with two worm gears 27, and the worm gears 27 are keyed to the corresponding drive shafts 26. The front and rear sides of the support frame 2 are provided with strip-shaped openings, and a second plate sleeve 18 is fixedly connected to each of the two strip-shaped openings. The upper and lower ends of the second plate sleeve 18 are movably inserted into one end of a corresponding second movable plate 17. Each second movable plate 17 is provided with a second oblique groove 19 passing through both sides. A second follower rod 20 is slidably connected to the second oblique groove 19, and the second follower rod 20 is fixedly connected to the limiting rod 16. One end of the drive shaft 26 is bearing-connected to the side of the second movable plate 17 away from the guide roller 6, and the other end of the drive shaft 26 is bearing-through the side of the second movable plate 17 near the guide roller 6. The other end of the drive shaft 26 is also connected to... The roller electrode 23 is coaxially connected, and its outer diameter matches that of the guide roller 6. A pressure sensor is also installed on the guide roller 6. The first servo motor 4 operates, driving the shaft 14 to rotate, which in turn causes the worm gear sleeve 15 to rotate the worm wheel 27. The worm wheel 27 drives the roller electrode 23 to rotate synchronously via the transmission shaft 26. Since the roller electrode 23 is connected to a circuit, it acts as an electrode for the circuit. When it comes into contact with the composite material to be welded, the surface of the composite material melts due to resistance heat, thus achieving a welding effect. Furthermore, as the limiting rod 16 moves with the return frame 8, it also drives the second follower rod 20 to move within the second inclined groove 19, allowing the two second movable plates 17 in the same group to move closer or further apart. This allows for adjustment of the distance between the two roller electrodes 23, enabling stable extrusion of both sides of the composite material by the two roller electrodes 23. This facilitates synchronous welding of both sides of the composite material. Simultaneously, a pressure sensor can detect the extrusion pressure on the composite material between the upper and lower guide rollers 6 in real time, ensuring that when the upper and lower guide rollers 6 approach each other, the axial surface of the composite material to be welded is coplanar with the symmetrical plane between the two roller electrodes 23. This ensures the synchronicity and uniformity of welding both sides of the composite material. The through holes in the middle of the shaft 14 and on the worm sleeve 15 for the shaft 14 to pass through are mutually matching prismatic shapes. The lateral distance of the second oblique through groove 19 is less than the minimum distance between the end of the second oblique through groove 19 away from the worm sleeve 15 and the worm sleeve 15.The connection between the worm sleeve 15 and the shaft 14 allows the worm sleeve 15 to slide on the shaft 14 without affecting the purpose of the shaft 14 driving the worm sleeve 15 to rotate stably. Furthermore, by setting the distance, it prevents the worm sleeve 15 from obstructing the movement of the second follower rod 20. The structure formed by the first plate sleeve 11, the first movable plate 12, and the first oblique groove 13 in the same group has the same shape as the structure formed by the second plate sleeve 18, the second movable plate 17, and the second oblique groove 19, and the two groups of structures have the same height. This ensures that after the upper and lower guide rollers 6 clamp the composite material, the two roller electrodes 23 also clamp the composite material synchronously, thus ensuring that the axial surface of the position to be welded on the composite material is coplanar with the symmetrical plane of the two roller electrodes 23. This helps to avoid deformation of the composite material during the cooling stage after welding, which would affect the welding quality. The two first oblique grooves 13 in the same group form an "eight"-shaped structure.

[0038] It should also be noted that how the two roller electrodes 23 are energized is existing technology. Although it is not described in detail in this technical solution, it does not affect the implementation of this technical solution.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sided synchronous composite material roll welding mechanism, comprising a support body (1), an adjustment component, a drive component, and a synchronization component, characterized in that: The upper surface of the support body (1) is fixedly connected to a support frame (2) and a support seat (3), and the support frame (2) is located behind the support seat (3). There are 4 support seats (3), and the 4 support seats (3) are arranged in 2 groups. The 2 groups of support seats (3) are symmetrically arranged about the axis of the support frame (2). Each group of support seats (3) is connected to the guide roller (6) through an adjustment component. The adjustment component is connected to the upper surface of the support body (1) through a drive component. The interior of the support frame (2) is connected to the drive component through a synchronization component. A roller electrode (23) is connected to the synchronization component. The drive component includes a return frame (8), a fixed plate (10), and a limiting rod. (16), triangular connecting plate (21), triangular support plate (22), lead screw (24), and second servo motor (25). The upper surface of the support body (1) is provided with a groove, and the second servo motor (25) is installed in the groove. The shaft end of the second servo motor (25) is coaxially fixedly connected to one end of the lead screw (24), and the lead screw (24) is threaded through the spiral frame (8). The other end of the lead screw (24) is bearing connected to the protrusion on the upper surface of the support body (1). Four limiting rods (16) are movably passed through the support frame (2), and the two ends of the four limiting rods (16) are respectively fixedly connected by two fixing plates (10). The fixing plate near the protrusion is... (10) is equipped with a triangular connecting plate (21), and the inclined shaft of the triangular connecting plate (21) is connected to a triangular support plate (22), and the triangular support plate (22) is fixedly connected to the ring frame (8). The lower surface of the ring frame (8) is slidably connected to the upper surface of the support body (1). The adjustment component includes a first follower rod (7), a strip groove (9), a first plate sleeve (11), a first movable plate (12), and a first inclined groove (13). Each support seat (3) is provided with two parallel strip grooves (9), and the two strip grooves (9) on the same support seat (3) are respectively penetrated by the middle and upper ends of the first follower rod (7). The lower end of the first follower rod (7) is fixedly supported on the upper surface of the circular frame (8), and the upper middle end of the first follower rod (7) passes through the strip groove (9) and is slidably connected to the corresponding first oblique groove (13). The first oblique groove (13) passes through both sides of the first movable plate (12), and the first movable plate (12) is provided on both the upper and lower sides of the first plate sleeve (11). The first plate sleeve (11) is connected to the first movable plate (12) in a movable nesting manner, and the first plate sleeve (11) is provided on each support seat (3). The guide roller (6) is provided on the opposite side of the first movable plate (12), and the guide roller (6) is connected to the bearing of the first movable plate (12) it is connected to.The synchronization assembly includes a first servo motor (4), a motor frame (5), a shaft (14), a worm gear sleeve (15), a second movable plate (17), a second plate sleeve (18), a second oblique through groove (19), a second follower rod (20), a transmission shaft (26), and a worm wheel (27). The first servo motor (4) is mounted on the upper surface of the support frame (2) via the motor frame (5), and the shaft end of the first servo motor (4) is coaxially fixedly connected to the upper end of the shaft (14). The upper end of the shaft (14) extends movably through to the top of the support frame (2), and the worm gear sleeve (15) is movably sleeved on the outer side of the shaft (14). Two worm sleeves (15) are provided, and the two worm sleeves (15) are respectively meshed and connected to two worm wheels (27). The worm wheels (27) are keyed to the corresponding transmission shafts (26). The front and rear sides of the support frame (2) are provided with strip-shaped openings, and two second plate sleeves (18) are fixedly connected to the two strip-shaped openings. The upper and lower ends of the second plate sleeves (18) are movably inserted into one end of the corresponding second movable plate (17). Each second movable plate (17) is provided with a second oblique through groove (19) that passes through both sides of it. A second follower rod (20) is slidably connected to the second oblique through groove (19). The second follower rod (20) is fixedly connected to the limit rod (16). One end of the transmission shaft (26) is connected to the side of the second movable plate (17) away from the guide roller (6), and the other end of the transmission shaft (26) is connected to the side of the second movable plate (17) near the guide roller (6). The other end of the transmission shaft (26) is coaxially connected to the roller electrode (23). The outer diameter of the roller electrode (23) matches the outer diameter of the guide roller (6). A pressure sensor is also provided on the guide roller (6). By moving the retaining frame (8), the triangular support plate (22) drives the triangular connecting plate (21) to move synchronously. This causes the limiting rod (16) to move synchronously. During the movement of the limiting rod (16), the second follower rod (20) moves in the second oblique groove (19), thereby causing the two second movable plates (17) of the same group to move closer or further apart, thus adjusting the distance between the two roller electrodes (23). During the movement of the return frame (8), the first follower rod (7) slides in the strip groove (9) and moves in the first oblique groove (13), thereby causing the first movable plates (12) of the same group to move further apart or closer together, thus adjusting the position of the guide roller (6).

2. The double-sided synchronous composite material roll welding mechanism according to claim 1, characterized in that, The four support seats (3) are located inside the retractable frame (8), and the axial surface of the guide roller (6) is coplanar with the axial surface of the retractable frame (8).

3. The double-sided synchronous composite material roll welding mechanism according to claim 2, characterized in that, The inclined surface of the triangular connecting plate (21) faces downward, and the inclined surface of the triangular support plate (22) faces upward.

4. The double-sided synchronous composite material roll welding mechanism according to claim 3, characterized in that, The first follower rod (7) has an F-shaped structure, and the outer diameter of the upper end of the first follower rod (7) matches the inner diameter of the strip groove (9).

5. A double-sided synchronous composite material roll welding mechanism according to claim 4, characterized in that, The through holes provided on the middle part of the shaft (14) and the worm sleeve (15) for the shaft (14) to pass through are prisms that fit each other. The lateral distance of the second oblique through groove (19) is less than the minimum distance between the end of the second oblique through groove (19) away from the worm sleeve (15) and the worm sleeve (15).

6. The double-sided synchronous composite material roll welding mechanism according to claim 5, characterized in that, The structure formed by the first plate sleeve (11), the first movable plate (12) and the first oblique through groove (13) in the same group has the same shape as the structure formed by the second plate sleeve (18), the second movable plate (17) and the second oblique through groove (19), and the height of the two groups of structures is the same.

7. A double-sided synchronous composite material roll welding mechanism according to claim 6, characterized in that, The two first oblique through slots (13) in the same group form an "eight" shaped structure.

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