Automatic device for twisting thin steel sheets

Abstract

The application discloses a kind of thin steel sheet automatic torsion device, including workbench, steel sheet compression device, automatic feeding device, the workbench upper end is fixedly connected with two groups of sliding rails, the sliding rail is slidably connected with sliding block, the sliding block is fixedly connected with mounting plate, the mounting plate is fixedly connected with steel sheet compression device, torsion device is fixedly connected on the workbench at the sliding rail one end, automatic feeding device is fixedly connected on the workbench of the sliding rail side, the automatic feeding device is drivingly connected with mounting plate, retractable pneumatic cylinder is fixedly installed on the workbench of the sliding rail other side, the one end of the retractable pneumatic cylinder is connected with connecting piece, the other end of the connecting piece is fixedly connected with mounting plate.The application aims at providing a kind of thin steel sheet automatic torsion device integrated with dynamic rebound compensation system, double-channel quick exhaust device and full-process automatic control function.

Description

Technical Field

[0001] This invention relates to the field of thin steel sheet processing technology, specifically to an automatic twisting device for thin steel sheets. Background Technology

[0002] In the field of thin steel sheet processing, the existing technology for steel sheet torsion processes has the following technical defects:

[0003] Controlling springback is difficult: steel sheets will elastically rebound during the torsion process, but existing devices cannot dynamically adjust the torsion angle according to the actual springback, resulting in deviation of the final angle of the product. Compensation requires manual experience, making it difficult to guarantee the consistency of mass production.

[0004] Product damage caused by residual gas pressure: After the torsion is completed, the residual gas pressure in the cylinder is not released in time, which may cause the steel sheet to shift or deform due to gas expansion, affecting the product's accuracy and surface quality.

[0005] Low level of automation: Traditional equipment requires manual adjustment of angles or step-by-step operation. The processes of feeding, pressing, and twisting are not connected, resulting in low efficiency and quality problems caused by human error. Summary of the Invention

[0006] To address the aforementioned shortcomings in the existing technology, the purpose of this invention is to provide an automatic twisting device for thin steel sheets that integrates a dynamic rebound compensation system, a dual-channel rapid exhaust device, and a fully automated control function.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned objective is as follows: an automatic twisting device for thin steel sheets, comprising a worktable, a steel sheet clamping device, and an automatic feeding device. Two sets of sliding rails are fixedly connected to the upper end of the worktable. Sliding blocks are slidably connected to the sliding rails. An mounting plate is fixedly connected to the sliding blocks. A steel sheet clamping device is fixedly connected to the mounting plate. The steel sheet clamping device is used to clamp and fix one end of the thin steel sheet. A twisting device is fixedly connected to the worktable at one end of the sliding rail. The twisting device is used to fix the other end of the thin steel sheet and to twist the thin steel sheet at a certain angle. An automatic feeding device is fixedly connected to the worktable on one side of the sliding rail. The automatic feeding device is driven by the mounting plate. A telescopic cylinder is fixedly installed on the worktable on the other side of the sliding rail. One end of the telescopic cylinder is connected to a connecting piece, and the other end of the connecting piece is fixedly connected to the mounting plate. The telescopic cylinder drives the mounting plate to slide relative to the sliding rail through the connecting piece.

[0008] In this invention, an automatic feeding device can transport thin steel sheets to one end of a steel sheet clamping device and complete the clamping and fixing of the thin steel sheets. The specific mechanism of the automatic feeding device is as follows:

[0009] The automatic feeding device includes a guide plate, a sliding sleeve, a clamp, a storage box, a feeding mechanism, and a linkage mechanism. The guide plate has a through-hole for arranging and conveying thin steel sheets. A feeding mechanism is installed on the guide plate at one end of the through-hole. A storage box is fixedly connected to the guide plate on one side of the feeding mechanism. Several thin steel sheets are stacked in the storage box, and the bottom of the storage box is connected to the through-hole. The feeding mechanism pushes the thin steel sheets from the storage box sequentially into the through-hole. A check valve is installed on the guide plate on one side of the storage box to prevent the thin steel sheets from sliding backwards within the through-hole. The guide plates on both sides of the storage box are respectively fixed... A support plate is fixedly connected to the worktable at its lower end. The support plate is the overall support structure of the automatic feeding device. A sliding sleeve is connected to the guide plate at the other end of the material trough hole. A material clamp is connected to one end of the sliding sleeve. The material clamp is used to clamp and fix the thin steel sheet. The bottom of the sliding sleeve is connected to the feeding mechanism. The feeding mechanism can push the thin steel sheet in the storage box into the material trough hole in sequence. The feeding mechanism is connected to the linkage mechanism. The linkage mechanism is fixedly connected to the worktable below the guide plate and is fixedly connected to the sliding block on the adjacent side. When the sliding block moves along the sliding rail, the feeding mechanism can be driven to work through the linkage mechanism.

[0010] In the above technical solution, in order to facilitate the clamping of thin steel sheets, a groove is provided on the guide plate on one side of the clamp, and the clamp is slidably connected in the groove.

[0011] In the above technical solution, the specific structure of the steel sheet pressing device is as follows:

[0012] It includes a clamping cylinder, a support frame, a fitting plate, a clamping block, and a clamping head. The clamping cylinder is fixedly connected to the upper center of the mounting plate. A fitting plate is fixedly connected to the mounting plate on one side of the clamping cylinder. A support frame is fixedly connected between the fitting plate and the clamping cylinder. A rotating rod is rotatably connected to the support frame. One end of the rotating rod has a sliding groove. A push column is slidably connected within the sliding groove. A first spring groove is formed on the inner side of the push column. A first spring is slidably connected within the first spring groove and abuts against the inner wall of the sliding groove. The outer end of the push column abuts against the clamping block. A fitting groove is formed on the fitting plate on one side of the clamping block. The clamping block is slidably connected within the fitting groove. The same... A clamping head is fixedly connected to each side. One end of the thin steel sheet is clamped between the two sets of clamping heads. Several second spring grooves are respectively opened on the bottom surface of the fitting groove and on the clamping block on the opposite side. A telescopic rod is installed in the second spring groove, and the two ends of the telescopic rod are respectively connected to the clamping block and the fitting plate. A second spring is sleeved on the outer periphery of the telescopic rod. The two ends of the second spring abut against the two ends of the second spring groove. A guide groove hole is opened at the other end of the rotating rod. A guide groove is opened in the rotating rod on one side of the guide groove hole. A guide groove plate is slidably connected in the guide groove. A guide groove block is fixedly connected to one end of the guide groove plate. The guide groove block is slidably connected in the guide groove hole. One end of the clamping cylinder is rotatably connected to the guide groove block.

[0013] In the above technical solution, the specific structure of the feeding mechanism is as follows:

[0014] The feeding mechanism includes a pusher plate, a limiting plate, a guide block, a sliding sleeve, a sliding guide rod, a sliding guide block, a fixed plate, and a linkage plate. A limiting groove is formed at one end of the material trough hole, and a limiting plate is slidably connected in the limiting groove. A pusher plate is fixedly connected to one side of the limiting plate and is slidably connected in the material trough hole. Two sets of guide blocks are fixedly connected to the lower end of the pusher plate. A guide slot is formed on one side of the guide block, and the guide blocks are slidably connected in the guide slot. A linkage plate is slidably connected to the guide plate below the guide slot. One end of the linkage plate is fixedly connected to the sliding sleeve, and the other end of the linkage plate is fixedly connected to the fixed plate. A sliding guide rod is fixedly connected to one side of the fixed plate, and a sliding guide block is fixedly connected to one end of the sliding guide rod. The sliding guide block is slidably connected in the sliding sleeve, and one end of the sliding sleeve is fixedly connected to the guide block.

[0015] In the above technical solution, the specific structure of the linkage mechanism is as follows:

[0016] The linkage mechanism includes a side guide plate, a first side guide block, a second side guide block, a side pull rod, an end block, a connecting rod, a sliding guide rail, and a movable block. A side guide plate is fixedly connected to a workbench on one side of the mounting plate. A side guide hole is provided on the side guide plate, and a first side guide block and a second side guide block are slidably connected within the side guide hole. One side of the first side guide block is fixedly connected to an adjacent sliding block. A sliding guide hole is provided on the first side guide block, and a side pull rod is slidably connected within the sliding guide hole. One end of the side pull rod passes through the sliding guide hole and is fixedly connected to the second side guide block. The other end of the side pull rod passes through the sliding guide hole and is fixedly connected to the end block. A connecting rod is rotatably connected to the second side guide block, and the other end of the connecting rod is rotatably connected to the movable block. The lower end of the movable block is slidably connected to the sliding guide rail, which is fixedly connected to the workbench directly below the guide plate. A fixing frame is fixedly connected to the upper end of the movable block, and both ends of the fixing frame are fixedly connected to the linkage plate.

[0017] In the above technical solution, the specific structure of the check valve is as follows:

[0018] The check valve includes a mounting block, a sliding block, a check plate, a connecting rod, and a third spring. The mounting block is fixedly connected to a guide plate on one side of the storage box. Two sets of symmetrical sliding block grooves are provided on one side of the mounting block. The sliding block is slidably connected in the sliding block groove. A third spring groove is provided at the upper end of the sliding block. A third spring is slidably connected in the third spring groove. One end of the third spring abuts against the inner wall of the sliding block groove. A check plate is fixedly connected to one side of the sliding block. A connecting rod is connected between the check plates. A through hole is provided on the guide plate below the check plate. The lower end of the check plate passes through the through hole and is inserted into the material groove hole. The check plate inserted into the material groove hole has an inclined structure.

[0019] In the above technical solution, the structure of the torsion device is as follows:

[0020] The torsion device includes a bending frame, a torsion cylinder, a torsion head, and an angle sensor. The bending frame is fixedly connected to a workbench at one end of a sliding rail. A torsion cylinder is fixedly connected to one side of the bending frame. A rapid exhaust device is fixedly connected to the torsion cylinder. The output end of the torsion cylinder is connected to the torsion head. The output end of one side of the torsion head is connected to the angle sensor.

[0021] In the above technical solution, to improve the sliding stability of the sliding sleeve on the guide plate, the following structure is proposed:

[0022] The guide plate has sliding guide grooves on both sides, and the inner walls of both sides of the sliding sleeve are fixedly connected with sliding guide strips, which are slidably connected in the sliding guide grooves.

[0023] In the above technical solution, in order to improve the structural stability of the linkage mechanism, a slide frame is fixedly connected to the guide plate on one side of the support plate, and the linkage plate is slidably connected in the slide frame.

[0024] The beneficial effects of this invention are:

[0025] 1. Automatic springback compensation mechanism: By monitoring the torsion angle in real time through a sensing device, combined with slow secondary torsion and pressure holding functions, the springback of the steel sheet can be accurately compensated to ensure that the final angle of the product meets the design requirements, reduce the scrap rate, and improve the processing accuracy.

[0026] 2. Rapid exhaust protection design: A reverse exhaust valve is set in both directions of the torsion cylinder. After the torsion is completed, the residual air pressure is released instantly to avoid the gas expansion causing secondary displacement or surface damage to the steel sheet, thereby improving the product yield.

[0027] 3. Full-process automated integration: The automatic feeding, pressing, twisting and unloading processes are seamlessly connected, reducing manual intervention, improving processing efficiency and consistency, and reducing the labor intensity and safety risks of operators.

[0028] 4. Optimized Structural Stability: The guide structure, which combines sliding guide grooves and guide bars, enhances the smoothness of the sliding sleeve's movement; the linkage mechanism is limited by the sliding groove frame to avoid eccentric load vibration, ensuring the reliability of long-term high-load operation.

[0029] 5. Double protection against misalignment: The material clamp and the anti-reverse device work together to prevent the thin steel sheet from sliding backward when it is fed, and the groove opening ensures that the clamping position is accurate, avoiding torsion failure or equipment damage due to misalignment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a cross-sectional disassembly diagram of the steel sheet pressing device of the present invention;

[0032] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the rotating rod of the present invention;

[0033] Figure 4 This is a schematic cross-sectional view of the automatic feeding device of the present invention;

[0034] Figure 5 This is a schematic diagram of the linkage mechanism connection structure of the present invention;

[0035] Figure 6 This is a bottom view of the connection structure of the automatic feeding device of the present invention;

[0036] Figure 7 This is a cross-sectional disassembly diagram of the check valve device of the present invention;

[0037] Figure 8 This is a schematic diagram of the torsion device structure of the present invention.

[0038] In the diagram: 1. Workbench; 2. Steel sheet clamping device; 3. Automatic feeding device; 4. Sliding rail; 5. Sliding block; 6. Mounting plate; 7. Torsion device; 8. Telescopic cylinder; 9. Connecting piece; 101. Guide plate; 102. Sliding sleeve; 103. Material clamp; 104. Storage box; 105. Material groove hole; 106. Support plate; 107. Check valve; 201. Clamping cylinder; 202. Support frame; 203. Fitting plate; 204. Clamping block; 205. Clamping head; 206. Rotating rod; 207. Pushing column; 208. First spring; 209. Fitting groove; 210. Telescopic rod; 211. Guide groove hole; 212. Guide groove; 213. Guide groove plate; 214. Guide groove block; 215. Sliding groove hole; 216. Second spring groove; 217. Second spring; 218. First spring groove; 301. Pushing plate; 30. 2. Limiting plate, 303. Guide block, 304. Sliding sleeve, 305. Sliding guide rod, 306. Sliding guide block, 307. Fixing plate, 308. Linkage plate, 309. Limiting groove, 401. Side guide plate, 402. Side guide hole, 403. First side guide block, 404. Second side guide block, 405. Side pull rod, 406. End block, 407. Linking rod, 408. Sliding guide rail, 409. Movable block, 410. Limiting post, 411. Fixing frame, 501. Mounting block, 502. Sliding groove block, 503. Check plate, 504. Connecting rod, 505. Third spring, 506. Sliding slider groove, 507. Third spring groove, 601. Bending frame, 602. Torsion cylinder, 603. Torsion head, 604. Angle sensor, 605. Quick exhaust device, 701. Sliding guide groove, 702. Sliding guide strip, 703. Sliding groove frame. Detailed Implementation

[0039] 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.

[0040] Please see Figure 1-8An automatic twisting device for thin steel sheets includes a worktable 1, a steel sheet clamping device 2, and an automatic feeding device 3. Two sets of sliding rails 4 are fixedly connected to the upper end of the worktable 1. Sliding blocks 5 are slidably connected to the sliding rails 4. A mounting plate 6 is fixedly connected to the sliding blocks 5. The steel sheet clamping device 2 is fixedly connected to the mounting plate 6. The steel sheet clamping device 2 is used to clamp and fix one end of the thin steel sheet. A twisting device 7 is fixedly connected to the worktable 1 located at one end of the sliding rail 4. The twisting device 7 is used to fix the other end of the thin steel sheet and to twist the thin steel sheet at a certain angle. The automatic feeding device 3 is fixedly connected to the worktable 1 on one side of the sliding rail 4. The automatic feeding device 3 is connected to the mounting plate 6 through a transmission connection. A telescopic cylinder 8 is fixedly installed on the worktable 1 on the other side of the sliding rail 4. One end of the telescopic cylinder 8 is connected to a connector 9. The other end of the connector 9 is fixedly connected to the mounting plate 6. The telescopic cylinder 8 drives the mounting plate 6 to slide relative to the sliding rail 4 through the connector 9.

[0041] In this invention, please refer to Figure 4 The automatic feeding device 3 can transport the thin steel sheet to one end of the steel sheet pressing device 2 and complete the clamping and fixing of the thin steel sheet. The specific mechanism of the automatic feeding device 3 is as follows:

[0042] The automatic feeding device 3 includes a guide plate 101, a sliding sleeve 102, a material clamp 103, a storage box 104, a feeding mechanism, and a linkage mechanism. The guide plate 101 has a through-hole 105 for arranging and conveying thin steel sheets. A feeding mechanism is installed on the guide plate 101 at one end of the through-hole 105. A storage box 104 is fixedly connected to the guide plate 101 on one side of the feeding mechanism. Several thin steel sheets are stacked inside the storage box 104, and the bottom of the storage box 104 is connected to the through-hole 105. The feeding mechanism pushes the thin steel sheets in the storage box 104 sequentially into the through-hole 105. A check device 107 is installed on the guide plate 101 on one side of the storage box 104 to prevent the thin steel sheets from sliding backwards within the through-hole 105. The check device 107 is located on both sides of the storage box 104. Support plates 106 are fixedly connected to the guide plate 101. The lower end of the support plate 106 is fixedly connected to the worktable 1. The support plate 106 is the overall support structure of the automatic feeding device 3. A sliding sleeve 102 is connected to the guide plate 101 at the other end of the material groove hole 105. A material clamp 103 is connected to one end of the sliding sleeve 102. The material clamp 103 is used to clamp and fix the thin steel sheet. The bottom of the sliding sleeve 102 is connected to the feeding mechanism. The feeding mechanism can push the thin steel sheet in the storage box 104 into the material groove hole 105 in sequence. The feeding mechanism is connected to the linkage mechanism. The linkage mechanism is fixedly connected to the worktable 1 below the guide plate 101. The linkage mechanism is also fixedly connected to the sliding block 5 on the adjacent side. When the sliding block 5 moves along the sliding rail 4, the feeding mechanism can be driven to work through the linkage mechanism.

[0043] In this invention, a groove is provided on the guide plate 101 on one side of the clamp 103. The clamp 103 is slidably connected in the groove. During operation, the thin steel sheets in the storage box 104 can be pushed sequentially into the material groove hole 105 by the feeding mechanism. The thin steel sheets in the material groove hole 105 reach the groove under the sequential pushing. Then, the sliding sleeve 102 slides towards the storage box 104, and the sliding sleeve 102 drives the clamp 103 to move, so that the clamp 103 enters the groove. Thus, the clamp 103 clamps and fixes the thin steel sheet at the groove. Subsequently, the sliding sleeve 102 moves towards the sliding rail 4. At this time, the sliding sleeve 102 drives the clamp 103 to move outward, and the clamp 103 takes the thin steel sheet out of the material groove hole 105. Then, it is convenient for the steel sheet pressing device 2 to hold and fix one end of the thin steel sheet. The specific structure of the steel sheet pressing device 2 is as follows:

[0044] Please see Figure 2 and Figure 3The steel sheet pressing device 2 includes a pressing cylinder 201, a support frame 202, a fitting plate 203, a pressing block 204, and a pressing head 205. The pressing cylinder 201 is fixedly connected to the upper middle part of the mounting plate 6 to provide power for pressing the thin steel sheet. The fitting plate 203 is fixedly connected to the mounting plate 6 on one side of the pressing cylinder 201. The support frame 202 is fixedly connected between the fitting plate 203 and the pressing cylinder 201. A rotating rod 206 is rotatably connected to the support frame 202. A sliding groove hole 215 is opened at one end of the rotating rod 206. A push column 207 is slidably connected in the sliding groove hole 215. A first spring is opened on the inner side of the push column 207. A spring groove 218 is provided, in which a first spring 208 is connected to a sliding sleeve. The first spring 208 abuts against the inner wall of the sliding groove hole 215. The outer end of the push column 207 abuts against the pressing block 204. A fitting groove 209 is provided on the fitting plate 203 on one side of the pressing block 204. The pressing block 204 is slidably connected in the fitting groove 209. A pressing head 205 is fixedly connected to the same side of the pressing block 204 and the fitting plate 203 respectively. One end of the thin steel sheet is clamped between the two sets of pressing heads 205. Several second spring grooves 216 are provided on the bottom surface of the fitting groove 209 and on the pressing block 204 on the opposite side respectively. A telescopic rod 210 is installed inside the groove 216, and both ends of the telescopic rod 210 are connected to the pressing block 204 and the fitting plate 203, respectively. A second spring 217 is sleeved around the outer periphery of the telescopic rod 210, and both ends of the second spring 217 abut against both ends of the second spring groove 216. A guide groove hole 211 is opened at the other end of the rotating rod 206. A guide groove 212 is opened in the rotating rod 206 on one side of the guide groove hole 211. A guide groove plate 213 is slidably connected in the guide groove 212. A guide groove block 214 is fixedly connected to one end of the guide groove plate 213. The guide groove block 214 is slidably connected in the guide groove hole 211. One end of the pressing cylinder 201 Rotary connection with guide block 214. In specific operation, the thin steel sheet is conveyed to one end of steel sheet pressing device 2 through material clamp 103. Then, telescopic cylinder 8 drives mounting plate 6 to move to one side, so that pressing head 205 is close to thin steel sheet. Then, pressing cylinder 201 is activated, pressing cylinder 201 pushes guide block 214 to move outward. Guide block 214 and guide plate 213 drive rotating rod 206 to rotate. The other end of rotating rod 206 presses pressing block 204 down through push column 207. Pressing block 204 makes two sets of pressing heads 205 close to each other, so that one end of thin steel sheet is pressed and fixed by pressing head 205.

[0045] Please see Figure 4-6The feeding mechanism includes a pusher plate 301, a limiting plate 302, a guide block 303, a sliding sleeve 304, a sliding guide rod 305, a sliding guide block 306, a fixing plate 307, and a linkage plate 308. A limiting groove 309 is provided at one end of the material trough hole 105. The limiting plate 302 is slidably connected in the limiting groove 309. The pusher plate 301 is fixedly connected to one side of the limiting plate 302. The pusher plate 301 is slidably connected in the material trough hole 105. Two sets of guide blocks 303 are fixedly connected to the lower end of the pusher plate 301. A guide groove is provided on the guide plate 101 on one side of the guide block 303. The guide block 303 is slidably connected to the guide slot opening. A linkage plate 308 is slidably connected to the guide plate 101 located below the guide slot opening. One end of the linkage plate 308 is fixedly connected to the sliding sleeve 102, and the other end of the linkage plate 308 is fixedly connected to a fixing plate 307. A sliding guide rod 305 is fixedly connected to one side of the fixing plate 307. A sliding guide block 306 is fixedly connected to one end of the sliding guide rod 305. The sliding guide block 306 is slidably connected inside the sliding sleeve 304, and one end of the sliding sleeve 304 is fixedly connected to the guide block 303. The linkage mechanism includes a side guide plate 401, a first... Side guide block 403, second side guide block 404, side pull rod 405, end block 406, connecting rod 407, sliding guide rail 408, movable block 409. A side guide plate 401 is fixedly connected to the workbench 1 on one side of the mounting plate 6. A side guide hole 402 is opened on the side guide plate 401. A first side guide block 403 and a second side guide block 404 are slidably connected in the side guide hole 402. One side of the first side guide block 403 is fixedly connected to the adjacent sliding block 5. A sliding guide hole is opened on the first side guide block 403. A side pull rod 405 is slidably connected in the sliding guide hole. 05 One end of the side pull rod 405 passes through the sliding guide hole and is fixedly connected to the second side guide block 404. The other end of the side pull rod 405 passes through the sliding guide hole and is fixedly connected to the end block 406. A connecting rod 407 is rotatably connected to the second side guide block 404. The other end of the connecting rod 407 is rotatably connected to the movable block 409. The lower end of the movable block 409 is slidably connected to the sliding guide rail 408. The sliding guide rail 408 is fixedly connected to the workbench 1 directly below the guide plate 101. A fixed frame 411 is fixedly connected to the upper end of the movable block 409. Both ends of the fixed frame 411 are fixedly connected to the linkage plate 308 respectively.In this embodiment, a limit post 410 is fixedly connected to the worktable 1 between the sliding rail 4 and the torsion device 7. During operation, the sliding block 5 drives the fixed first side guide block 403 to move. First, the sliding block 5 drives the pressing head 205 close to one end of the thin steel sheet until one end of the thin steel sheet is inserted into the pressing head 205. During this process, the sliding block 5 drives the first side guide block 403 to slide along the guide slot 211, while the first side guide block 403 slides along the side pull rod 405 and approaches the second side guide block 404, but with a certain distance between them. Afterwards, the pressing head 205 presses one end of the thin steel sheet and then drives the telescopic cylinder 8 again. The telescopic cylinder 8 then... The sliding block 5 moves, causing the steel sheet clamping device 2 to push the thin steel sheet towards the torsion device 7, that is, the thin steel sheet slides within the clamp 103 until the other end of the thin steel sheet reaches one side of the limiting post 410. At this time, the first side guide block 403 continues to slide along the side pull rod 405 until it contacts the second side guide block 404. Then, the telescopic cylinder 8 is activated again. At this time, the steel sheet clamping device 2 continues to push the thin steel sheet to move horizontally until the other end of the thin steel sheet is inserted into the torsion head 603 of the torsion device 7. At the same time, the sliding block 5 drives the first side guide block 403 to move, and the first side guide block 403 pushes the second side guide block 404 to slide along the side guide hole 402. 04. The movable block 409 is pushed along the sliding guide rail 408 by the linkage rod 407. The movable block 409 drives the linkage plate 308 to move to the guide slot through the fixed frame 411. First, one end of the linkage plate 308 drives the sliding sleeve 102 to slide along the guide plate 101. The sliding sleeve 102 drives the material clamp 103 to move into the groove. During this process, one end of the thin steel sheet is fixed by the steel sheet pressing device 2, and the other end is restricted by the limiting post 410. Thus, the material clamp 103 will not drive the thin steel sheet to move during its movement, ensuring that the other end of the thin steel sheet can be inserted into the twist head 603. When the material clamp 103 enters the groove, the thin steel sheet located at the groove can be clamped again. The material is fixed in the clamp 103. The other end of the linkage plate 308 drives the fixed plate 307 to move away from the guide groove. At this time, the fixed plate 307 pulls the sliding guide rod 305 to move. The sliding guide rod 305 drives the sliding guide block 306 to slide along the inside of the sliding sleeve tube 304. After the sliding guide block 306 slides to the end, it continues to pull the sliding sleeve tube 304 to move. The sliding sleeve tube 304 drives the guide block 303 and the pusher plate 301 to slide, so that the pusher plate 301 is removed from the bottom of the storage box 104. After the pusher plate 301 is removed, the thin steel sheets stacked in the storage box 104 fall into the material groove hole 105. Finally, the torsion device 7 torsion the clamped thin steel sheet, thereby completing the processing operation of the thin steel sheet.

[0046] After the above operations are completed, the telescopic cylinder 8 drives the sliding block 5 to move in the opposite direction. At this time, the steel sheet pressing device 2 pulls the thin steel sheet to move, so that the other end of the thin steel sheet is pulled out from the torsion head 603. After the thin steel sheet is pulled out, the steel sheet pressing device 2 releases the other end of the thin steel sheet, allowing the thin steel sheet to fall freely. In addition, the sliding block 5 drives the first side guide block 403 to move. The first side guide block 403 first slides along the side pull rod 405, and then contacts the end block 406 at the end. Then it drives the end block 406 to move along the side guide hole 402. The end block 406 drives the second side guide block 404 to move through the side pull rod 405. The second side guide block 404 drives the movable block 409 to move through the linkage rod 407. The movable block 409 drives the linkage plate 308 to move through the fixed frame 411. At this time, the linkage plate 308 moves. The movable sleeve 102 moves toward the sliding rail 4. The sleeve 102 drives the material clamp 103 and the thin steel sheet clamped and fixed between the material clamp 103 to move. The other end of the linkage plate 308 drives the fixed plate 307 to move. The fixed plate 307 drives the sliding guide rod 305 to move. The other end of the sliding guide rod 305 drives the sliding guide block 306 to slide along the sliding sleeve tube 304. After the sliding guide block 306 slides to the end of the sliding sleeve tube 304, it continues to push the sliding sleeve tube 304 to move. At this time, the sliding sleeve tube 304 drives the guide block 303 and the pusher plate 301 to slide into the material groove hole 105. The pusher plate 301 pushes the thin steel sheet in the material groove hole 105 to move until the thin steel sheet is pushed past the check device 107. Under the mutual pushing, the outermost thin steel sheet in the material groove hole 105 moves to the groove opening again.

[0047] Please see Figure 7In the above structure, the check valve 107 includes a mounting block 501, a sliding block 502, a check plate 503, a connecting rod 504, and a third spring 505. The mounting block 501 is fixedly connected to the guide plate 101 on one side of the storage box 104. Two sets of symmetrical sliding block grooves 506 are provided on one side of the mounting block 501. The sliding block 502 is slidably connected in the sliding block groove 506. A third spring groove 507 is provided at the upper end of the sliding block 502. A third spring 505 is slidably connected in the third spring groove 507. One end of the third spring 505 abuts against the inner wall of the sliding block groove 506. A check plate 503 is fixedly connected to one side of the sliding block 502. A connecting rod 504 is connected between the check plates 503. A through hole is provided on the guide plate 101 below the check plate 503. After the lower end of 503 passes through the through hole, it is inserted into the material groove hole 105. The check plate 503 inserted into the material groove hole 105 has an inclined structure. In specific operation, the pusher plate 301 pushes the thin steel sheet to move along the material groove hole 105. During this process, one end of the thin steel sheet abuts against the inclined structure of the check plate 503, and under the inclined guiding force of the inclined structure, pushes the check plate 503 to move upward, so that the thin steel sheet can continue to move until the thin steel sheet passes the check plate 503. Then the pusher plate 301 moves backward. At this time, the third spring 505 drives the sliding block 502 to move downward. The sliding block 502 drives the check plate 503 to move downward, so that the check plate 503 is re-inserted into the material groove hole 105. Under the restriction of the check plate 503, the reverse movement of the thin steel sheet can be avoided.

[0048] Please see Figure 8 The torsion device 7 includes a bending frame 601, a torsion cylinder 602, a torsion head 603, and an angle sensor 604. The bending frame 601 is fixedly connected to the workbench 1 at one end of the sliding rail 4. The torsion cylinder 602 is fixedly connected to one side of the bending frame 601. A quick exhaust device 605 is fixedly connected to the torsion cylinder of the torsion cylinder 602. The output end of the torsion cylinder 602 is connected to the torsion head 603. The output end of the torsion head 603 is connected to the angle sensor 604. In this invention, a quick exhaust device 605 is added to the two air inlets of the torsion cylinder. When the product angle is torsioned to the correct position, the exhaust valve quickly unloads the gas pressure that generates the torsion force. The torsion head 603 returns to its original position through the automatic springback force of the torsion steel sheet.

[0049] Please see Figure 4 and Figure 6 In the above technical solution, in order to improve the sliding stability of the sliding sleeve 102 on the guide plate 101, a further structure is proposed: sliding guide grooves 701 are respectively opened on both sides of the guide plate 101, and sliding guide strips 702 are respectively fixedly connected to the inner walls of both sides of the sliding sleeve 102, and the sliding guide strips 702 are respectively slidably connected in the sliding guide grooves 701.

[0050] Please see Figure 6In the above technical solution, in order to improve the structural stability of the linkage mechanism, a slide frame 703 is fixedly connected to the guide plate 101 on one side of the support plate 106, and the linkage plate 308 is slidably connected in the slide frame 703.

[0051] Please see Figure 1-8 The working principle of this invention is as follows: In use, the automatic feeding device 3 first transports the thin steel sheet to the moving steel sheet pressing device 2, and then the telescopic cylinder 8 is activated. The telescopic cylinder 8 drives the steel sheet pressing device 2 to move to one end of the thin steel sheet. Then, the steel sheet pressing device 2 fixes one end of the thin steel sheet. Next, the telescopic cylinder 8 drives the steel sheet pressing device 2 to move again, so that the other end of the thin steel sheet is inserted into the torsion head 603. Then, the torsion cylinder 602 rotates. When the angle sensor 604 detects that the torsion angle has reached the preset value, the rotation stops and is maintained for a certain period of time to ensure that the rebound amount is consistent with the positioning amount, thereby ensuring the product torsion size. The torsion cylinder 602 is equipped with a fast exhaust device 605. When the torsion angle exceeds the set angle, it is used to quickly exhaust the gas in the torsion cylinder and automatically rebound the torsion steel sheet to prevent the residual air pressure from affecting the rebound amount. At the same time, it eliminates the influence of the tooling on the appearance of the steel sheet during rebound. Then, the telescopic cylinder 8 automatically returns to its original position and removes the thin steel sheet, completing the product processing.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic twisting device for thin steel sheets, comprising a worktable (1), a steel sheet pressing device (2), and an automatic feeding device (3), characterized in that: Two sets of sliding rails (4) are fixedly connected to the upper end of the workbench (1). Sliding blocks (5) are slidably connected to the sliding rails (4). Mounting plates (6) are fixedly connected to the sliding blocks (5). Steel sheet pressing devices (2) are fixedly connected to the mounting plates (6). A torsion device (7) is fixedly connected to the workbench (1) located at one end of the sliding rails (4). An automatic feeding device (3) is fixedly connected to the workbench (1) on one side of the sliding rails (4). The automatic feeding device (3) is connected to the mounting plates (6) in a transmission connection. A telescopic cylinder (8) is fixedly installed on the workbench (1) on the other side of the sliding rails (4). A connector (9) is connected to one end of the telescopic cylinder (8). The other end of the connector (9) is fixedly connected to the mounting plates (6). The automatic feeding device (3) includes a guide plate (101), a sliding sleeve (102), a material clamp (103), a storage box (104), a feeding mechanism, and a linkage mechanism. The guide plate (101) has a through-hole (105) at both ends. A feeding mechanism is installed on the guide plate (101) at one end of the through-hole (105). A storage box (104) is fixedly connected to the guide plate (101) on one side of the feeding mechanism. The bottom of the storage box (104) is connected to the through-hole (105). A check device (107) is installed on the guide plate (101) on one side of the storage box (104). Support plates (106) are fixedly connected to the guide plates (101) on both sides of the storage box (104). The lower end of the support plate (106) is fixedly connected to the workbench (1). A sliding sleeve (102) is connected to the guide plate (101) at the other end of the material trough hole (105). A material clamp (103) is connected to one end of the sliding sleeve (102). The bottom of the sliding sleeve (102) is connected to the feeding mechanism. The feeding mechanism is connected to the linkage mechanism. The linkage mechanism is fixedly connected to the workbench (1) below the guide plate (101). The linkage mechanism is fixedly connected to the sliding block (5) on the adjacent side. The feeding mechanism includes a pusher plate (301), a limiting plate (302), a guide block (303), a sliding sleeve (304), a sliding guide rod (305), a sliding guide block (306), a fixing plate (307), and a linkage plate (308). A limiting groove (309) is provided at one end of the material groove hole (105). The limiting plate (302) is slidably connected in the limiting groove (309). A pusher plate (301) is fixedly connected to one side of the limiting plate (302). The pusher plate (301) is slidably connected in the material groove hole (105). Two sets of guide blocks (303) are fixedly connected to the lower end of the pusher plate (301). The guide plate on one side of the guide block (303) is... (101) has a guide slot, and the guide blocks (303) are slidably connected in the guide slot. A linkage plate (308) is slidably connected on the guide plate (101) located below the guide slot. One end of the linkage plate (308) is fixedly connected to the sliding sleeve (102), and the other end of the linkage plate (308) is fixedly connected to the fixing plate (307). A sliding guide rod (305) is fixedly connected to one side of the fixing plate (307), and a sliding guide block (306) is fixedly connected to one end of the sliding guide rod (305). The sliding guide block (306) is slidably connected in the sliding sleeve tube (304), and one end of the sliding sleeve tube (304) is fixedly connected to the guide block (303). The linkage mechanism includes a side guide plate (401), a first side guide block (403), a second side guide block (404), a side pull rod (405), an end block (406), a connecting rod (407), a sliding guide rail (408), and a movable block (409). The side guide plate (401) is fixedly connected to the workbench (1) on one side of the mounting plate (6). The side guide plate (401) has a side guide hole (402). The first side guide block (403) and the second side guide block (404) are slidably connected in the side guide hole (402). One side of the first side guide block (403) is fixedly connected to the adjacent sliding block (5). The first side guide block (403) has a sliding guide hole. The side pull rod (405) is slidably connected in the sliding guide hole. 405), one end of the side pull rod (405) passes through the sliding guide hole and is fixedly connected to the second side guide block (404), and the other end of the side pull rod (405) passes through the sliding guide hole and is fixedly connected to the end block (406). A connecting rod (407) is rotatably connected to the second side guide block (404). The other end of the connecting rod (407) is rotatably connected to the movable block (409). The lower end of the movable block (409) is slidably connected to the sliding guide rail (408). The sliding guide rail (408) is fixedly connected to the workbench (1) directly below the guide plate (101). A fixing frame (411) is fixedly connected to the upper end of the movable block (409). The two ends of the fixing frame (411) are fixedly connected to the linkage plate (308) respectively.

2. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: A groove is provided on the guide plate (101) on one side of the clamp (103), and the clamp (103) is slidably connected in the groove.

3. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: The steel sheet pressing device (2) includes a pressing cylinder (201), a support frame (202), a fitting plate (203), a pressing block (204), and a pressing head (205). The pressing cylinder (201) is fixedly connected to the upper middle part of the mounting plate (6). The fitting plate (203) is fixedly connected to the mounting plate (6) on one side of the pressing cylinder (201). The support frame (202) is fixedly connected between the fitting plate (203) and the pressing cylinder (201). A rotating rod (206) is rotatably connected to the support frame (202). One end has a sliding groove (215), and a pusher (207) is slidably connected in the sliding groove (215). A first spring groove (218) is opened on the inner side of the pusher (207), and a first spring (208) is slidably connected in the first spring groove (218). The first spring (208) abuts against the inner wall of the sliding groove (215). The outer end of the pusher (207) abuts against the pressing block (204). A fitting groove (209) is opened on the fitting plate (203) on one side of the pressing block (204). The pressing block (204) is slidably connected. Within the fitting groove (209), a pressing head (205) is fixedly connected to the pressing block (204) and the fitting plate (203) on the same side. Several second spring grooves (216) are respectively opened on the bottom surface of the fitting groove (209) and on the pressing block (204) on the opposite side. A telescopic rod (210) is installed in the second spring groove (216), and both ends of the telescopic rod (210) are connected to the pressing block (204) and the fitting plate (203) respectively. A second spring (217) is sleeved around the outer periphery of the telescopic rod (210). The two ends of the spring (217) abut against the two ends of the second spring groove (216), and the other end of the rotating rod (206) is provided with a guide groove hole (211). A guide groove (212) is provided in the rotating rod (206) on one side of the guide groove hole (211). A guide groove plate (213) is slidably connected in the guide groove (212). A guide groove block (214) is fixedly connected to one end of the guide groove plate (213). The guide groove block (214) is slidably connected in the guide groove hole (211). One end of the pressing cylinder (201) is rotatably connected to the guide groove block (214).

4. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: The check valve (107) includes a mounting block (501), a sliding block (502), a check plate (503), a connecting rod (504), and a third spring (505). The mounting block (501) is fixedly connected to the guide plate (101) on one side of the storage box (104). Two sets of symmetrical sliding block grooves (506) are provided on one side of the mounting block (501). The sliding block (502) is slidably connected in the sliding block groove (506). A third spring groove (507) is provided at the upper end of the sliding block (502). 07) The inner sliding sleeve is connected to a third spring (505). One end of the third spring (505) abuts against the inner wall of the slider groove (506). A check plate (503) is fixedly connected to one side of the sliding block (502). A connecting rod (504) is connected between the check plates (503). A through hole is opened on the guide plate (101) below the check plate (503). The lower end of the check plate (503) passes through the through hole and is inserted into the material groove hole (105). The check plate (503) inserted into the material groove hole (105) has an inclined structure.

5. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: The torsion device (7) includes a bending frame (601), a torsion cylinder (602), a torsion head (603), and an angle sensor (604). The bending frame (601) is fixedly connected to the workbench (1) at one end of the sliding rail (4). A torsion cylinder (602) is fixedly connected to one side of the bending frame (601). A fast exhaust device (605) is fixedly connected to the torsion cylinder of the torsion cylinder (602). The output end of the torsion cylinder (602) is connected to the torsion head (603). An angle sensor (604) is connected to the output end of one side of the torsion head (603).

6. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: The guide plate (101) has sliding guide grooves (701) on both sides, and the inner walls of the two sides of the sliding sleeve (102) are fixedly connected with sliding guide strips (702), and the sliding guide strips (702) are slidably connected in the sliding guide grooves (701).

7. The automatic twisting device for thin steel sheets according to claim 1, characterized in that: A slide rail frame (703) is fixedly connected to the guide plate (101) on one side of the support plate (106), and the linkage plate (308) is slidably connected in the slide rail frame (703).

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