A tape clamping and welding aid for an automatic bending machine and method of use thereof
Patent Information
- Application Number
- CN202611289644.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-25
- Publication Date
- 2026-11-03
AI Technical Summary
自动折弯机的包带夹紧焊接辅助装置无法适应不同规格的包带，导致无法正常固定，无法满足多种包带的使用需求。
Design a tape clamping and welding auxiliary device for an automatic bending machine, including a base plate, a cross plate, an adjustment structure, and a support structure. The device achieves tape positioning and welding through the principle of screws and levers. It adopts a threaded connection and bearing rotation structure to ensure that the tape does not deform during the welding process, and protects the hands with a fluororubber sheath and a high-temperature resistant silicone cushioning pad.
It achieves stable positioning and welding of the strapping tape, adapts to the use of various specifications of strapping tape, reduces secondary transfer and clamping errors of the workpiece, improves processing efficiency, and reduces the procurement costs of equipment and tooling.
Smart Images
Figure CN123025124A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of tape clamping and welding auxiliary devices, specifically a tape clamping and welding auxiliary device for an automatic bending machine and its usage method. Background Technology
[0002] The automatic bending machine's tape clamping and welding auxiliary device integrates clamping and positioning, pre-tightening and shaping, and welding and pressing at the bending station, eliminating the need for secondary transfer and achieving fully automatic linkage of bending → clamping alignment → pressing and welding → releasing and discharging.
[0003] When using the tape clamping and welding auxiliary device of the automatic bending machine, lift the lever-type operating handles on both sides to open the clamping pressure plate to the preset angle. Place the tails of the two tapes to be welded into the clamping slots of the upper and lower stations respectively, ensuring that the mating end faces are completely aligned without misalignment or gaps. Press down the lever-type operating handles to apply clamping force through the lever principle until the tape tails cannot move. At the same time, avoid over-clamping to prevent tape deformation. However, in the operation of the tape clamping and welding auxiliary device of the automatic bending machine, the tooling clamping plate is a rigid dead limit. Since the tape specifications are different, the tape clamping and welding auxiliary device cannot be fixed normally, making it unable to meet the needs of various tapes. Summary of the Invention
[0004] The purpose of this invention is to solve the problem that the tape clamping and welding auxiliary device cannot perform normal fixing, thus failing to meet the needs of various tape applications, and proposes a tape clamping and welding auxiliary device for automatic bending machines.
[0005] To achieve the above objectives, the present invention provides the following technical solution: Design a tape clamping and welding auxiliary device for an automatic bending machine, including a base plate and a horizontal plate. The bottom of the front and rear sides of the base plate are fixedly connected to the inner sides of the two horizontal plates respectively. An adjustment structure is connected to the right side of the base plate, and a support structure is connected to the right side of the adjustment structure. Straight plates are fixedly connected to the front and rear of the top left side of the base plate respectively.
[0006] This setting: The straight plate positions the straps, preventing the straps placed on top of the base plate from moving further to the left, while keeping the left sides of the two straps in a straight line.
[0007] Preferably, the adjustment structure includes a first screw and a bent plate. The left side of the outer wall of the first screw is rotatably connected to the right circular opening of the base plate. The outer wall of the first screw is threadedly connected to the circular opening of the outer wall of the bent plate. Curved plates are fixedly connected to the front and rear of the top left side of the bent plate, and a handle is fixedly connected to the right side of the first screw.
[0008] This setting: The first screw rotates through the bearing in the circular opening on the right side of the base plate when the force is applied to the left side of the outer wall. The rotation of the first screw causes the curved plate to move left and right. The handle and the hand form the force point. Turning the handle will rotate the first screw.
[0009] Preferably, the bottom of the curved plate is attached to the top right side of the base plate, and the top of the curved plate is flush with the top of the straight plate.
[0010] This setting: The base plate restricts the bending plate, preventing it from rotating at an angle and ensuring stable linear movement.
[0011] Preferably, the inner wall of the curved plate is rotatably connected to a shaft, and a beam plate is fixedly connected to the top of the shaft.
[0012] This setting: The shaft is subjected to force and rotates through the bearing on the inner wall of the curved plate. When the shaft rotates, it also causes the beam plate to rotate at an angle.
[0013] Preferably, a bracket is fixed to the top of the beam, and a pressure block is fixed to the left side of the bracket.
[0014] This feature: The bracket serves to fix the position of the pressure block and ensure its stable operation, while also coordinating the connection between the pressure block and other components through structural design.
[0015] Preferably, a protective sleeve is fixedly attached to the upper part of the outer wall of the bracket.
[0016] This feature: The sleeve is made of fluororubber, which can protect the hands and prevent them from being scratched by direct contact with the support.
[0017] Preferably, a top plate is fixed to the lower right side of the bracket.
[0018] This feature: The support structure serves to fix the position of the top plate and ensure its stable operation. At the same time, through structural design, it coordinates the connection between the top plate and other components to reduce the impact of vibration.
[0019] Preferably, the support structure includes a square plate and a second screw, the left side of the square plate is fixedly connected to the right side of the curved plate, the top of the square plate is fixedly connected to the bottom of the second screw, and a sleeve is threadedly connected to the outer wall of the second screw.
[0020] This setting allows the sleeve to rotate up and down via the outer wall of the second screw, thereby adjusting the length of the second screw and the sleeve.
[0021] Preferably, the top plate of the sleeve is in contact with the bottom plate.
[0022] This feature: After the sleeve is fitted with the top plate, it provides support to the top plate and prevents the top plate from rotating downwards.
[0023] Preferably, the sleeve is fixedly connected to the left and right sides respectively.
[0024] This setting allows the prism plate to form a force point with the hand, and pushing the prism plate will cause the sleeve to rotate on the outer wall of the second screw.
[0025] Instructions for use of the tape clamping and welding auxiliary device for automatic bending machines: S1. Align the bottom of the base plate and the cross plate with the connection of the automatic bending machine. Then, thread the bolts from top to bottom through the cross plate and connect them with the threads of the automatic bending machine. Hold the sheath and push it to the right. At this time, the bracket rotates the shaft through the beam plate. The bracket lifts the pressure block upward. Then, align the bottom of the wrapping tape with the top of the base plate, and at the same time, align the left side of the wrapping tape with the right side of the straight plate. Next, hold the handle and rotate the first screw. The rotating first screw moves the bending plate to the left, and at the same time, the bending plate moves the curved plate to the left until the left side of the bending plate aligns with the right side of the wrapping tape. Then, push the two wrapping tapes inward to align the welded joints of the wrapping tapes, completing the initial positioning of the wrapping tapes. Then, push the bracket to the left. At this time, the pressure block on the left side of the bracket moves downward, aligning the bottom of the pressure block with the top of the wrapping tape. S2. Then push the prism plate. The prism plate, under force, causes the sleeve to rotate upward on the outer wall of the second screw until the top of the sleeve is pressed against the bottom of the top plate, thus fixing the position of the top plate and the bracket. At this time, the pressure block will hold the strap tightly. Then weld the strap joint. After that, push the prism plate in the opposite direction. The sleeve rotates downward through the second screw, causing the sleeve to detach from the bottom of the top plate. Then push the bracket to the right, causing the pressure block to detach from the top of the strap. Then, rotate the first screw in the opposite direction with the handle. The rotating first screw moves the bending plate to the right, causing the left side of the bending plate to detach from the strap. Then remove the welded strap from the top of the bottom plate. Then, use an automatic bending machine to bend the welded strap.
[0026] The present invention proposes a strap clamping and welding auxiliary device for an automatic bending machine. The beneficial effects are as follows: by adjusting the structure, the first screw is rotated by holding the handle. The rotating first screw moves the bending plate to the left, and at the same time, the bending plate moves the curved plate to the left until the left side of the bending plate is in contact with the right side of the strap. Then, the two straps are pushed inward to make the strap welding joints align, so that the strap clamping and welding auxiliary device is properly fixed and can meet the needs of various strap applications. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the central axis, beam plate, and bending plate; Figure 3 for Figure 1A schematic diagram showing the connection structure between the base plate, the first screw, and the handle; Figure 4 for Figure 1 A schematic diagram of the structure of A in the middle; Figure 5 for Figure 1 A schematic diagram of the structure of B in the middle; Figure 6 for Figure 1 A schematic diagram showing the connection relationship between the second screw, sleeve, and prism plate. Figure 7 for Figure 1 A schematic diagram showing the connection relationship between the first screw, the bent plate, and the curved plate.
[0028] In the diagram: 1. Base plate, 2. Adjustment structure, 201. First screw, 202. Bent plate, 203. Curved plate, 204. Handle, 3. Support structure, 301. Square plate, 302. Second screw, 303. Sleeve, 304. Rib plate, 4. Horizontal plate, 5. Straight plate, 6. Shaft, 7. Beam plate, 8. Bracket, 9. Pressure block, 10. Protective sleeve, 11. Top plate. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings: Please see Figure 1-7 In this embodiment, a strapping clamping and welding auxiliary device for an automatic bending machine includes a base plate 1 and a horizontal plate 4. The bottom of the front and rear sides of the base plate 1 are fixedly connected to the inner sides of the two horizontal plates 4 respectively. An adjustment structure 2 is connected to the right side of the base plate 1, and a support structure 3 is connected to the right side of the adjustment structure 2. Straight plates 5 are fixedly connected to the front and rear of the top left side of the base plate 1 respectively. The straight plates 5 play a positioning role for the strapping, so that the strapping placed on the top of the base plate 1 cannot continue to move to the left, and at the same time keep the left sides of the two strappings in a straight line.
[0030] The base plate is made of 12mm thick cold-rolled steel plate, milled in one piece. The plate surface is precision ground by a surface grinder, and the flatness tolerance is controlled within 0.02mm to avoid warping or hanging problems when the plate is placed. Two sets of horizontal plates are symmetrically welded to the bottom of the base plate. The horizontal plates are reserved with long strip installation through holes to adapt to the threaded hole positions of different models of automatic bending machine worktables. Precise alignment of hole distance is not required during installation, making it more versatile.
[0031] The straight plates are fixed to the front and rear ends of the left side of the base plate by full welding. The vertical surfaces of the inner side of the straight plates are polished and deburred, with a verticality error of no more than 0.01mm. The inner positioning surfaces of the two straight plates are completely parallel, ensuring that when metal wrapping tapes of different widths and thicknesses are attached to the left, the mating end faces are always on the same vertical reference plane, thus eliminating the defects of misalignment and offset of the wrapping tapes from the source.
[0032] Adjustment structure 2 includes a first screw 201 and a bent plate 202. The left side of the outer wall of the first screw 201 is rotatably connected to the right circular opening of the base plate 1. The outer wall of the first screw 201 is threadedly connected to the outer circular opening of the bent plate 202. The left side of the outer wall of the first screw 201 is subjected to force and rotates through the bearing in the right circular opening of the base plate 1. The rotation of the first screw 201 causes the bent plate 202 to move left and right. Curved plates 203 are fixedly connected to the front and back of the top left side of the bent plate 202 respectively.
[0033] A handle 204 is fixedly connected to the right side of the first screw 201. The handle 204 and the hand form a force point. Rotating the handle 204 will rotate the first screw 201. The bottom of the curved plate 202 is in contact with the top right side of the base plate 1. The base plate 1 restricts the curved plate 202 to prevent it from rotating at an angle, thus ensuring stable linear motion of the curved plate 202. The top of the curved plate 202 is flush with the top of the straight plate 5. The inner wall of the curved plate 203 is rotatably connected to a shaft 6. The top of the shaft 6 is fixedly connected to a beam plate 7. The shaft 6 is rotated through the bearing on the inner wall of the curved plate 203. When the shaft 6 rotates, it causes the beam plate 7 to rotate at an angle. The first screw is made of 45# steel with heat treatment and galvanized surface for rust prevention. The thread adopts M20 standard trapezoidal thread with a thread lead of 5mm. A single half-turn of the handle can achieve a 2.5mm transverse feed of the bending plate. The feed amount is uniform and controllable, and there will be no jamming or scrambling. The right side of the base plate has a deep groove ball bearing embedded in the round opening. Dustproof seals are installed at both ends of the bearing to prevent welding spatter and metal debris from entering the bearing and extend the service life of rotating parts.
[0034] Two parallel wear-resistant oil grooves are provided on the contact surface between the bottom of the curved plate and the base plate. Regular lubrication with grease significantly reduces sliding friction. The curved plate is integrally formed in an L-shape, exhibiting strong resistance to deformation and preventing bending deformation when subjected to the reaction force of the strapping. Two sets of curved plates are symmetrically welded to the upper end of the curved plate. Miniature rotary bearings are coaxially installed inside the curved plates, with an interference fit between the shaft and the bearing, eliminating radial clearance. The beam plate can rotate unimpeded from 0° to 90°, with uniform damping during rotation. It will not wobble or fall back after release, allowing operators to easily lift and lower the plate with one hand.
[0035] By adjusting the handle 204 in structure 2, the first screw 201 is rotated. The rotating first screw 201 moves the bent plate 202 to the left, and at the same time, the bent plate 202 moves the curved plate 203 to the left until the left side of the bent plate 202 is in contact with the right side of the strap. Then, the two straps are pushed inward to align the straps at the welding point, thus fixing the strap clamping welding auxiliary device in place and enabling it to be used for various types of straps.
[0036] A bracket 8 is fixed to the top of the beam 7. A pressure block 9 is fixed to the left side of the bracket 8. The function of the bracket 8 is to fix the position of the pressure block 9 and ensure its stable operation. At the same time, the structural design coordinates the connection between the pressure block 9 and other components. A protective sleeve 10 is fixed to the upper outer wall of the bracket 8. The protective sleeve 10 is made of fluororubber and can protect the hands and prevent the hands from being scratched by direct contact with the bracket 8. A top plate 11 is fixed to the lower right side of the bracket 8.
[0037] The bracket is made of hollow square tube welded together, which is lightweight and ensures structural rigidity. The pressure block can be installed on the left side of the bracket by bolts. The bottom of the pressure block is glued with a 3mm thick high temperature resistant silicone cushioning pad. The silicone pad can withstand welding high temperature above 200℃. It can increase the friction with the surface of the strap to prevent the strap from slipping during welding, and also disperse the clamping force to avoid the hard metal pressure block directly squeezing and causing indentations and dents on the surface of the thin-walled strap.
[0038] The fluororubber sheath is heat-pressed onto the grip area of the bracket, with wear-resistant carbon black added inside the rubber. It will not crack or fall off even after repeated pushing and pulling. The sheath surface is machined with an anti-slip diamond pattern, ensuring a stable grip even when hands are oily or dusty. The top plate is welded to the lower right side of the bracket, forming a 90° perpendicular structure. The lower surface of the top plate undergoes quenching and hardening treatment, minimizing denting and wear when in contact with the top of the sleeve.
[0039] The support structure 3 includes a square plate 301 and a second screw 302. The left side of the square plate 301 is fixedly connected to the right side of the curved plate 202, and the top of the square plate 301 is fixedly connected to the bottom of the second screw 302. A sleeve 303 is threadedly connected to the outer wall of the second screw 302. The sleeve 303 rotates up and down through the outer wall of the second screw 302 under force, thereby adjusting the length of the second screw 302 and the sleeve 303. The top of the sleeve 303 is in contact with the bottom of the top plate 11. After the sleeve 303 is in contact with the top plate 11, it provides support for the top plate 11 and prevents the top plate 11 from rotating downward. Rib plates 304 are fixedly connected to the left and right sides of the sleeve 303, respectively. The rib plates 304 can form a force point with the hand. Pushing the rib plates 304 will cause the sleeve 303 to rotate on the outer wall of the second screw 302.
[0040] The square plate is thickened to 10mm and fully welded to the side of the curved plate for reinforcement, dispersing the concentrated stress generated by the upward support of the second screw and preventing weld cracking after long-term stress. The second screw also adopts a trapezoidal thread design, which, together with the sleeve, allows for stepless height adjustment, covering a range of 0-30mm, and can be used for pressing tape of different thicknesses from 0.5mm to 5mm. Elongated rib plates are symmetrically welded to both sides of the sleeve, with rounded edges to eliminate the risk of sharp edges cutting hands. When rotating the sleeve, the rib plates provide leverage, eliminating the need for a wrench, allowing a single person to quickly complete the support locking and loosening operations. The upper end face of the sleeve is machined with annular anti-slip teeth, which tightly engage with the lower surface of the top plate. Vibrations generated during welding will not cause the sleeve to rotate and loosen on its own, maintaining stable support and limiting throughout the process.
[0041] Instructions for use of the tape clamping and welding auxiliary device for automatic bending machines: Use of the strap clamping welding auxiliary device: S1. Pre-installation of tooling and initial positioning of the strap: Make the bottom of the base plate 1 and the horizontal plate 4 fit with the connection of the automatic bending machine. Then, the bolts are threaded through the horizontal plate 4 from top to bottom and connected to the thread of the automatic bending machine. During the pre-installation stage, the installation position of the two sets of horizontal plates can be adjusted laterally according to the width of the bending machine's workbench. The long through hole is reserved with sufficient adjustment margin. Multiple bending machines of different models can share the same set of tooling, reducing equipment procurement costs.
[0042] After the equipment is fixed, perform a no-load test by repeatedly turning the handle 204 and flipping the bracket 8 to confirm that there is no jamming or abnormal noise in any sliding or rotating parts. Clean the metal debris and welding slag from the surface of the base plate to ensure that the positioning reference surface is clean and flat. Hold the protective sleeve 10 and push it to the right. At this time, the bracket 8 rotates through the beam plate 7 and the shaft 6. The bracket 8 lifts the pressure block 9 upward. The maximum angle of the bracket to the right can reach 85°. After the pressure block is fully lifted, there is sufficient space above the base plate for material placement. The operator can smoothly pick up and put down long strips of strapping with both hands without being interfered with or bumped by the pressure block or bracket.
[0043] Then, align the bottom of the strap with the top of the base plate 1, and simultaneously align the left side of the strap with the right side of the straight plate 5. Next, grasp the handle 204 and rotate the first screw 201. The rotating first screw 201 moves the curved plate 202 to the left, and simultaneously the curved plate 202 moves the curved plate 203 to the left, until the left side of the curved plate 202 aligns with the right side of the strap. Then, push the two straps inward to align the welded joints, completing the initial positioning of the straps. The horizontal bidirectional limiting mechanism, combined with the adjustable spacing of the straight and curved plates, can accommodate various metal straps with widths from 20mm to 120mm. For narrow straps, the curved plate can be fed in slightly to quickly tighten, while for wide straps, the curved plate can be moved with a large stroke to leave sufficient space for material feeding. The mating ends of the two straps are aligned with the unified benchmark of the straight plate, and manual fine-tuning can achieve zero-gap, misaligned mating, eliminating the need for frequent replacement of positioning blocks in traditional rigid limiting fixtures. Next, the bracket 8 is pushed to the left. At this time, the pressure block 9 on the left side of the bracket 8 moves downward, so that the bottom of the pressure block 9 fits against the top of the strap.
[0044] S2, Locking and Pressing, Welding and Unloading Bending: Then push the rib plate 304. The rib plate 304, under force, causes the sleeve 303 to rotate upward on the outer wall of the second screw 302 until the top of the sleeve 303 is pressed against the bottom of the top plate 11, thus fixing the position of the top plate 11 and the bracket 8. At this time, the pressure block 9 will press the tape tightly. After the sleeve presses upward against the top plate, it forms a rigid support and locking structure, which completely offsets the upward warping stress generated by welding heat deformation. The vertical downward pressing force of the pressure block is evenly distributed on the surface of the tape. The entire tape has no displacement or warping during the entire welding process. After welding, the weld is straight and beautiful, and the welding strength is stable and uniform.
[0045] Next, the tape joint is welded. After welding, the rib plate 304 is pushed in the reverse direction, and the sleeve 303 rotates downward through the second screw 302, causing the sleeve 303 to detach from the bottom of the top plate 11. Loosening the support structure does not require completely unscrewing the sleeve; simply rotating it downwards by 5-8mm releases the support limit. The operation is simple and quick, significantly shortening the processing turnaround time for a single batch of workpieces. Then, the bracket 8 is pushed to the right, causing the pressure block 9 to detach from the top of the tape. Next, the handle 204 rotates in the reverse direction with the first screw 201. The rotating first screw 201 moves the bending plate 202 to the right, causing the left side of the bending plate 202 to detach from the tape. The welded tape is then removed from the top of the base plate 1, and subsequently bent using an automatic bending machine.
[0046] After the workpiece is removed, there is no need to transfer it to other workstations. The tooling is directly integrated into the bending machine worktable. After welding, the bending process can be carried out directly in the original position, eliminating the need for secondary transfer and re-clamping of the workpiece, reducing clamping errors and improving overall processing efficiency. After a single processing is completed, the welding slag on the tooling surface can be quickly cleaned. Without disassembling any parts, it can be directly put into the next set of tapes to be welded for cyclic operation, resulting in strong stability for continuous production.
[0047] The entire tooling system relies on stepless adjustment of the thread to achieve universal use of multiple specifications of wrapping tape, abandoning the traditional single-specification dedicated tooling, reducing workshop tooling storage space and manufacturing costs. At the same time, the clamping and positioning, and pressing support structure operations are all simple manual operations, requiring no pneumatic or hydraulic power components. The equipment is easy to maintain and is suitable for mass production in small and medium-sized sheet metal processing workshops.
[0048] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A tape clamping and welding auxiliary device for an automatic bending machine, comprising a base plate (1) and a cross plate (4), characterized in that: The bottom of the front and rear sides of the base plate (1) is fixedly connected to the inner sides of the two horizontal plates (4), the right side of the base plate (1) is connected to the adjustment structure (2), the right side of the adjustment structure (2) is connected to the support structure (3), and the top left side of the base plate (1) is fixedly connected to the front and rear of the straight plate (5).
2. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 1, characterized in that: The adjustment structure (2) includes a first screw (201) and a bent plate (202). The left side of the outer wall of the first screw (201) is rotatably connected to the right circular opening of the base plate (1). The outer wall of the first screw (201) is threadedly connected to the outer circular opening of the bent plate (202). Curved plates (203) are fixedly connected to the front and back of the top left side of the bent plate (202). A handle (204) is fixedly connected to the right side of the first screw (201).
3. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 2, characterized in that: The bottom of the bent plate (202) is attached to the top right side of the base plate (1), and the top of the bent plate (202) is flush with the top of the straight plate (5).
4. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 2, characterized in that: The inner wall of the curved plate (203) is rotatably connected to a shaft (6), and a beam plate (7) is fixedly connected to the top of the shaft (6).
5. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 4, characterized in that: A bracket (8) is fixed to the top of the beam (7), and a pressure block (9) is fixed to the left side of the bracket (8).
6. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 5, characterized in that: A sheath (10) is fixed to the upper part of the outer wall of the bracket (8).
7. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 5, characterized in that: A top plate (11) is fixed to the lower right side of the bracket (8).
8. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 1, characterized in that: The support structure (3) includes a square plate (301) and a second screw (302). The left side of the square plate (301) is fixedly connected to the right side of the bent plate (202), and the top of the square plate (301) is fixedly connected to the bottom of the second screw (302). The outer wall of the second screw (302) is threaded with a sleeve (303).
9. The tape clamping and welding auxiliary device for an automatic bending machine according to claim 8, characterized in that: The top plate (11) of the sleeve (303) is attached to the bottom, and the left and right sides of the sleeve (303) are respectively fixed with rib plates (304).
10. The method of using the tape clamping and welding auxiliary device for an automatic bending machine according to claims 1-9, characterized in that: S1. Align the bottom of the base plate and the cross plate with the connection of the automatic bending machine. Then, thread the bolts from top to bottom through the cross plate and connect them with the threads of the automatic bending machine. Hold the sheath and push it to the right. At this time, the bracket rotates the shaft through the beam plate. The bracket lifts the pressure block upward. Then, align the bottom of the wrapping tape with the top of the base plate, and at the same time, align the left side of the wrapping tape with the right side of the straight plate. Next, hold the handle and rotate the first screw. The rotating first screw moves the bending plate to the left, and at the same time, the bending plate moves the curved plate to the left until the left side of the bending plate aligns with the right side of the wrapping tape. Then, push the two wrapping tapes inward to align the welded joints of the wrapping tapes, completing the initial positioning of the wrapping tapes. Then, push the bracket to the left. At this time, the pressure block on the left side of the bracket moves downward, aligning the bottom of the pressure block with the top of the wrapping tape. S2. Then push the prism plate. The prism plate, under force, causes the sleeve to rotate upward on the outer wall of the second screw until the top of the sleeve is pressed against the bottom of the top plate, thus fixing the position of the top plate and the bracket. At this time, the pressure block will hold the strap tightly. Then weld the strap joint. After that, push the prism plate in the opposite direction. The sleeve rotates downward through the second screw, causing the sleeve to detach from the bottom of the top plate. Then push the bracket to the right, causing the pressure block to detach from the top of the strap. Then, rotate the first screw in the opposite direction with the handle. The rotating first screw moves the bending plate to the right, causing the left side of the bending plate to detach from the strap. Then remove the welded strap from the top of the bottom plate. Then, use an automatic bending machine to bend the welded strap.