Diaphragm bending device with both folding and bending functions

Abstract

The present invention discloses a diaphragm bending device with both flattening and bending functions, including a pedestal. A bending mechanism and a roller conveyor are arranged on the pedestal. The base in the bending mechanism is fixed on the pedestal. A sliding table is slidably arranged in the base. A workbench is arranged on the sliding table. A flat support block is clamped on the right side of the workbench. A support seat is slidably clamped on the workbench. An arc-shaped groove is arranged on the right side wall of the support seat. The arc-shaped groove extends along the circumferential direction of the right side wall, and its radial depth direction extends to the bottom wall of the support seat. There is no solid material interval between the arc-shaped groove and the bottom wall of the support seat. A cross bar is horizontally arranged on the pedestal. A swing arm is rotatably arranged on the cross bar. A tension spring is arranged between the swing arm and the cross bar. A pressing wheel is rotatably arranged on the swing arm. The circumferential wall and the left end wall of the pressing wheel are rounded. The present invention can not only flatten the complete edge of the diaphragm material, but also perform technological bending on the diaphragm material.

Description

Technical Field

[0001] The present invention relates to the field of general equipment, and particularly to a diaphragm bending device with both flattening and bending functions. Background Art

[0002] At present, the diaphragm materials in the display industry on the market generally use two cutting methods: flat knife punching device or round knife cutting device. During the cutting process, the diaphragm material will be bent and deformed at the edge due to the extrusion of the tool.

[0003] When using a flat knife punching device for impact cutting, it will cause a downward bend at the edge of the diaphragm material. When using a round knife cutting device for cutting, the edge of the diaphragm material will be bent due to external factors such as cutting speed and sharpness of the round cutting knife. Since most of the diaphragm materials in the display industry are composite structures and have a certain plasticity, when the edge of the diaphragm material is bent, it cannot return to a flat state under its own elastic action. This requires the use of an additional flattening device to flatten the edge of the diaphragm material. Secondly, in different usage scenarios, in order to improve the practicality of the diaphragm material, enhance the structural strength, or improve the appearance and function, it is necessary to perform a technological bend on the diaphragm material. This technological bend is different from the bend generated at the edge during cutting. To perform a technological bend on the diaphragm material, an additional bending device is required. Currently, there is no device on the market that can simultaneously flatten or perform a technological bend on the diaphragm material. Summary of the Invention

[0004] The purpose of the present invention is to provide a diaphragm bending device with both flattening and bending functions that can flatten and perform a technological bend on the diaphragm material on the same device.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a diaphragm bending device with both flattening and bending functions, including a pedestal. A bending mechanism and a roller conveyor are respectively arranged on the left and right sides of the pedestal. The base in the bending mechanism is fixed on the pedestal. A sliding table is slidably arranged left and right in the base. A workbench is arranged on the sliding table. A flat support block is clamped on the right side of the workbench close to the roller conveyor. The top surface of the flat support block is flush with the conveying surface of the roller conveyor. A support seat is slidably clamped left and right on the workbench. An arc-shaped groove is arranged on the right side wall of the support seat. The arc-shaped groove extends circumferentially along the right side wall, and its radial depth direction extends to the bottom wall of the support seat. There is no solid material interval between the arc-shaped groove and the bottom wall of the support seat. A cross bar is transversely arranged on the base. A swing arm is rotatably arranged on the cross bar. A tension spring is arranged between the swing arm and the cross bar. A pressing wheel is rotatably arranged on the swing arm. The circumferential wall and the left end wall of the pressing wheel are rounded. Under the pulling force of the tension spring, the circumferential wall of the pressing wheel abuts against the top surface of the flat support block.

[0006] Further, for the above-mentioned diaphragm bending device with both folding and bending functions, on the front and rear side walls of the workbench, baffles are vertically arranged. On the inner side walls of the baffles, limiting grooves are provided. On the top walls of the baffles, top blocking parts extending towards the workbench are provided. The top wall of the support slides and abuts against the top blocking parts of the two baffles. The front and rear side walls of the support slide and abut against the inner side walls of the two baffles respectively. On the front and rear outer side walls of the support, limiting blocks protrude. When the support moves rightward to completely cover the flat support block, the limiting blocks on the support abut against the groove walls of the limiting grooves on the same side.

[0007] Further, for the above-mentioned diaphragm bending device with both folding and bending functions, on the left side wall of the workbench far from the roller conveyor, a double-shaft reduction motor is provided. Between the double-shaft reduction motor and the two baffles, two rotating shafts are coaxially arranged. On the two rotating shafts, gears are fixedly arranged. On the bottom wall of the support, a rack plate is clamped. The teeth on the rack plate mesh with the teeth of the two gears. The rack plate extends leftward out of the support. When the support moves leftward away from the flat support block, the rack plate abuts against the base.

[0008] Further, for the above-mentioned diaphragm bending device with both folding and bending functions, on the front and rear sides of the bottom wall of the rack plate, two limiting holes are symmetrically arranged. On the front and rear sides of the left side wall of the workbench, two limiting cylinders are symmetrically arranged. On the piston rods of the two limiting cylinders, limiting plates are provided. When the support moves rightward to completely cover the flat support block, the limiting cylinders drive the limiting plates to insert upward into the corresponding limiting holes.

[0009] Further, for the above-mentioned diaphragm bending device with both folding and bending functions, a loose sleeve is movably sleeved on the base. A first set screw is threadedly connected to the loose sleeve. The first set screw abuts against the base. A cross bar is horizontally fixed to the loose sleeve.

[0010] Further, for the above-mentioned diaphragm bending device with both folding and bending functions, a sleeve is movably sleeved on the cross bar. Three second set screws are circumferentially and evenly arranged on the sleeve. A fastening bolt is threadedly connected to the right end wall of the cross bar. A swing arm is rotatably arranged on the fastening bolt. The fastening bolt and the right end wall of the cross bar abut against the swing arm. A spring bolt is threadedly connected to the swing arm. One end hook of the tension spring is hooked on the spring bolt. Further, for the above-mentioned diaphragm bending device with both folding and bending functions, the pressing wheel is connected to the encoder, and the encoder is fixed on the swing arm.

[0011] Further, in the above-mentioned diaphragm bending device with both folding and bending functions, a connecting seat is provided on the pedestal, a lead screw is rotatably arranged between the base and the connecting seat, two guide rods are arranged in parallel on both sides of the lead screw, the sliding table is threadedly connected to the lead screw, the sliding table is slidably connected to the two guide rods, one end of the lead screw extends out of the base, and a turning handle is arranged on the lead screw extending out of the base.

[0012] Further, in the above-mentioned diaphragm bending device with both folding and bending functions, a rubber pad is provided on the left rack of the roller conveyor close to the bending mechanism, and the top surface of the rubber pad is flush with the conveying surface of the roller conveyor and the top surface of the flat support block.

[0013] Further, in the above-mentioned diaphragm bending device with both folding and bending functions, the flat support block, the support base and the pressing wheel are all made of the same rubber material.

[0014] The advantages of the present invention are as follows: it can not only flatten the bent edge of the cut diaphragm material, but also perform technological bending on the flat diaphragm material. When the edge of the diaphragm material needs to be flattened during bending, the diaphragm material is placed on the roller conveyor, and the bent edge is placed on the flat support block. The circumferential wall on the pressing wheel will be pressed tightly against the bent part of the diaphragm material under the tension of the tension spring. When the diaphragm material moves in a straight line, it drives the movement of the pressing wheel, and the circumferential wall on the pressing wheel cooperates with the flat support block to flatten the bent edge of the diaphragm material; when it is necessary to perform technological bending on the diaphragm material, the support base is moved to completely cover the flat support block, the diaphragm material is placed on the roller conveyor, and then one side is abutted against the arc-shaped groove of the support base, the rounded corner on the pressing wheel abuts against the diaphragm material located in the arc-shaped groove. When the diaphragm material moves in a straight line, the rounded corner on the pressing wheel cooperates with the arc-shaped groove on the support base to perform technological bending on the diaphragm material; during technological bending, different arc-shaped support bases can be replaced to achieve technological bending with different radian, and the width of the technological bending area of the diaphragm material can also be adjusted by adjusting the distance between the workbench and the roller conveyor. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the diaphragm bending device with both folding and bending functions according to the present invention.

[0016] Figure 2 is Figure 1 a top view structural diagram of the bending mechanism in

[0017] Figure 3 is Figure 1 a top view structural diagram of the workbench in

[0018] Figure 4 is Figure 1Schematic top view structure of the middle support base.

[0019] Figure 5 is Figure 3 Schematic structure of the middle baffle.

[0020] Figure 6 is Figure 1 Schematic structure of the cooperation between the middle support base and the pressing wheel after the middle support base moves to completely cover the flat supporting block. Specific implementation manner

[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0022] As Figures 1 to 6 shown, the diaphragm bending device with both folding and bending functions of the present invention includes a pedestal 1. Bending mechanisms 2 and roller conveyors 3 are respectively arranged on the left and right sides of the pedestal 1. The base 21 in the bending mechanism 2 is fixed on the pedestal 1. A sliding table 22 is slidably arranged left and right in the base 21. A connecting seat 11 is arranged on the pedestal 1. A lead screw 12 is rotatably arranged between the base 21 and the connecting seat 11. Two guide rods 13 are arranged in parallel on both sides of the lead screw 12. The sliding table 22 is threadedly connected to the lead screw 12 and slidably connected to the two guide rods 13. One end of the lead screw 12 extends out of the base 21, and a turning handle 121 is arranged on the lead screw 12 extending out of the base 21.

[0023] A workbench 23 is arranged on the sliding table 22. The workbench 23 is connected to the sliding table 22 by countersunk bolts. When the countersunk bolts are sunk into the workbench 23, it will not affect the flatness of the top surface of the workbench 23. A flat supporting block 4 is clamped on the right side of the workbench 23 close to the roller conveyor 3. The flat supporting block 4 is also connected to the workbench 23 by countersunk bolts. The top surface of the flat supporting block 4 is flush with the conveying surface of the roller conveyor 3. Baffles 24 are vertically arranged on the front and rear side walls of the workbench 23. A limiting groove 241 is arranged on the inner side wall of the baffle 24. A top blocking part 242 extending towards the workbench 23 is arranged on the top wall of the baffle 24. A supporting seat 5 is slidably clamped on the workbench 23 left and right. The top wall of the supporting seat 5 is slidably abutted against the top blocking parts 242 of the two baffles 24. The front and rear side walls of the supporting seat 5 are respectively slidably abutted against the inner side walls of the two baffles 24. Limiting blocks 51 are convexly arranged on the front and rear outer side walls of the supporting seat 5. An arc groove 52 is arranged on the right side wall of the supporting seat 5. The arc groove 52 extends along the circumferential direction of the right side wall, and its radial depth direction extends to the bottom wall of the supporting seat 5, so that there is no solid material interval between the arc groove 52 and the bottom wall of the supporting seat 5. When the supporting seat 5 moves to the right to completely cover the flat supporting block 4, since there is no solid material interval between the arc groove 52 and the bottom wall of the supporting seat 5, the arc groove 52 can actually be regarded as extending to the top surface of the flat supporting block 4. In this way, when the supporting seat 5 covers the flat supporting block 4, the lowest surface of the supporting seat 5 is also flush with the conveying surface of the roller conveyor 3. A double-shaft reduction motor 231 is arranged on the left side wall of the workbench 23 away from the roller conveyor 3. Two rotating shafts 232 are coaxially rotatably arranged between the double-shaft reduction motor 231 and the two baffles 24. Gears 233 are fixedly arranged on the two rotating shafts 232. A rack plate 53 is clamped on the bottom wall of the supporting seat 5. The teeth on the rack plate 53 are meshed with the teeth of the two gears 233. The rack plate 53 extends leftward out of the supporting seat 5. When the supporting seat 5 moves leftward away from the flat supporting block 4, the rack plate 53 abuts against the base 21 to play a limiting role. When the supporting seat 5 moves to the right to completely cover the flat supporting block 4, the limiting blocks 51 on the supporting seat 5 abut against the groove walls of the limiting grooves 241 on the same side to play a front limiting role on the rack 53 and the supporting seat 5. Two limiting holes 531 are symmetrically arranged on the front and rear sides of the bottom wall of the rack plate 53. Two limiting cylinders 234 are symmetrically arranged on the front and rear sides of the left side wall of the workbench 23. A limiting plate is arranged on the piston rods of the two limiting cylinders 234. When the supporting seat 5 moves to the right to completely cover the flat supporting block 4, the two limiting holes 531 on the rack plate 53 are respectively aligned with the limiting plates in the two limiting cylinders 234 up and down. The limiting cylinders 234 drive the limiting plates to insert upward into the corresponding limiting holes 531 to play a rear limiting role on the rack 53 and the supporting seat 5. The supporting seat 5 can be fixed on the workbench 23 under the front limiting action and the rear limiting action.

[0024] A loose loop 211 is movably sleeved on a base 21. A first set screw 212 is threadedly connected to the loose loop 211. The first set screw 212 abuts against the base 21 to fix the loose loop 211. After loosening the first set screw 212, the loose loop 211 can move up and down on the base 21 to adjust the height position of the loose loop 211. A cross bar 25 is horizontally arranged on the loose loop 211. A sleeve 251 is movably sleeved on the cross bar 25. Three second set screws 252 are circumferentially and evenly distributed on the sleeve 251. A fastening bolt 253 is threadedly connected to the right end wall of the cross bar 25. A swing arm 26 is rotatably arranged on the fastening bolt 253. The fastening bolt 253 and the right end wall of the cross bar 25 abut against the swing arm 26. A spring bolt 261 is threadedly connected to the swing arm 26. A tension spring 27 is arranged between the swing arm 26 and the sleeve 251 on the cross bar 25. One end hook of the tension spring 27 is hooked on the spring bolt 261, and the other end hook of the tension spring 27 is hooked on any one of the second set screws 252. By hooking the tension spring 27 on any one of the second set screws 252 and then rotating the sleeve 251 to adjust the position of the second set screw 252, the tension of the tension spring 27 can be adjusted. And arranging three second set screws 252 on the sleeve 251 can improve the connection strength between the sleeve 251 and the cross bar 25, preventing the sleeve 251 from rotating on the cross bar 25 due to the elastic tension of the tension spring 27 and affecting the tension effect of the tension spring 27. A pressure wheel 6 is rotatably arranged on the swing arm 26. The pressure wheel 6 is connected to an encoder 61. The encoder 61 is fixed on the swing arm 26. The circumferential wall and the left end wall of the pressure wheel 6 form a fillet R. Under the tension of the tension spring 27, the circumferential wall of the pressure wheel 6 abuts against the top surface of a flat supporting block 4. A rubber pad 31 is arranged on the left side frame of the roller conveyor 3 close to the bending mechanism 2. The top surface of the rubber pad 31 is flush with the conveying surface of the roller conveyor 3 and the top surface of the flat supporting block 4. The roller conveyor 3 is prior art and will not be elaborated here.

[0025] When it is necessary to flatten a diaphragm material with a bent edge, loosen the fastening bolt 253, move the swing arm 26 to the right until the pressure wheel 6 disengages from the workbench 23, then start the double-shaft reduction motor 231 to rotate forward. Through the gear transmission between the gear 233 and the rack plate 53, drive the support 5 to move to the left to expose the flat supporting block 4. Tighten the fastening bolt 253 again. The swing arm 26 drives the pressure wheel 6 to reset. Under the tension of the tension spring 27, drive the swing arm 26 to rotate towards the workbench 23, so that the circumferential wall of the pressure wheel 6 abuts against the flat supporting block 4. Place the diaphragm material on the roller conveyor 3, and place the bent edge on the flat supporting block 4. The pressure wheel 6 abuts against the diaphragm material under the tension of the tension spring 27, as Figure 2As shown, the countersunk bolts connecting the flat supporting block 4 and the workbench 23 are located at the front and rear ends of the flat supporting block 4. Therefore, the pressing wheel 6 needs to be abutted against the center position of the flat supporting block 4. So when the circumferential wall on the pressing wheel 6 is in contact with the top surface of the flat supporting block 4, the pressing wheel 6 will not be in contact with the countersunk holes on the flat supporting block 4. Therefore, when the pressing wheel 6 and the flat supporting block 4 cooperate to flatten the diaphragm material, no pressure contact will be applied in the direction of the countersunk holes, and the countersunk holes on the flat supporting block 4 will not damage the diaphragm material. In order to enable the pressing wheel 6 to be abutted against the center position of the flat supporting block 4, the height of the cross bar 25 needs to be adjusted for cooperation. If the cross bar 25 is too high, the pressing wheel 6 on the swing arm 26 either cannot be in contact with the flat supporting block 4, or the tension applied by the tension spring 27 to the pressing wheel 6 is insufficient, resulting in insufficient pressing force between the pressing wheel 6 and the flat supporting block 4 and unable to flatten the diaphragm material. If the cross bar 25 is too low, the pressing wheel 6 on the swing arm 26 is likely to be abutted against one end of the flat supporting block 4 and in contact with the countersunk holes, and it will also cause the tension spring 27 to apply too much tension to the pressing wheel 6, increasing the pressing force between the pressing wheel 6 and the flat supporting block 4. The excessive pressing force will damage the film material. Therefore, the height position of the adjusting cross bar 25 needs to be adjusted, which requires adjusting the pressing wheel 6 according to the actual situation. During adjustment, only by loosening the first set bolt 212 can the loose sleeve 211 and the cross bar 25 be adjusted up and down, so as to adjust the distance between the pressing wheel 6 and the flat supporting block 4 to adjust the pressing force between the pressing wheel 6 and the flat supporting block 4, so as to obtain a suitable pressing force. In order to prevent the pressing wheel 6 and the flat supporting block 4 from wearing or tearing the diaphragm material, the pressing wheel 6 and the flat supporting block 4 are made of the same rubber material. The diaphragm material is in contact with the rubber pad 31 on the roller conveyor 3 to prevent the frame on the roller conveyor 3 from tearing the diaphragm material. The diaphragm material will move linearly between the flat supporting block 4 and the pressing wheel 6 under the transportation of the roller conveyor 3, thereby driving the movement of the pressing wheel 6. The circumferential wall on the pressing wheel 6 and the flat supporting block 4 cooperate to flatten the bent edge of the diaphragm material. During the flattening process, the pressing wheel 6 cooperates with the encoder 61 to measure the length of the diaphragm material, so as to obtain the length of the diaphragm material.

[0026] When the diaphragm material needs to be bent for technological purposes, loosen the fastening bolt 253, move the swing arm 26 to the right until the pressing wheel 6 is separated from the workbench 23, and then start the double-axis reduction motor 231 to reverse. Through the gear transmission between the gear 233 and the rack plate 53, drive the support base 5 to move to the right until it completely covers the flat supporting block 4. The support base 5 is fixed on the workbench 23 under the action of the front limit and the rear limit. Tighten the fastening bolt 253 again. The swing arm 26 drives the pressing wheel 6 to reset. Under the tension of the tension spring 27, drive the swing arm 26 to rotate towards the workbench 23 direction, so that the fillet R on the pressing wheel 6 abuts against the arc groove 52 of the support base 5, as Figure 1As shown, the second set screw 252 on the sleeve 251 is located on the left side of the swing arm 26. Therefore, the tension spring 27 will pull the swing arm 26 downward to the left, so that the fillet R of the pressure wheel 6 on the swing arm 26 can always maintain a strong abutting force against the arc-shaped groove 52. When it is necessary to adjust the pressure wheel 6 from the state of abutting against the flat supporting block 4 to the state of the pressure wheel 6 abutting against the arc-shaped groove 52 on the supporting seat 5, the distance between the pressure wheel 6 and the arc-shaped groove 52 becomes lower, which increases the pressing force between the pressure wheel 6 and the arc-shaped groove 52. In order to prevent damage to the diaphragm material caused by the high pressing force, it is necessary to increase the distance between the pressure wheel 6 and the arc-shaped groove 52 to ensure that there is a good pressing force between the pressure wheel 6 and the arc-shaped groove 52. It is necessary to loosen the first set screw 212 to move the loose sleeve 211 and the cross bar 25 upward. At this time, the pressure wheel 6 will also rise accordingly, the distance between the pressure wheel 6 and the arc-shaped groove 52 increases, and the pressing force between the pressure wheel 6 and the arc-shaped groove 52 decreases. Then, place the diaphragm material on the roller conveyor 3, and place any side against the arc-shaped groove 52 of the supporting seat 5. The fillet R on the pressure wheel 6 abuts against the diaphragm material located in the arc-shaped groove 52. The diaphragm material will move linearly between the supporting seat 5 and the pressure wheel 6 under the conveyance of the roller conveyor 3. In order to prevent the pressure wheel 6 and the supporting seat 5 from wearing or tearing the diaphragm material, the supporting seat 5 is made of the same rubber material as the pressure wheel 6. The rotating pressure wheel 6 and the arc-shaped groove 52 of the supporting seat 5 cooperate to perform a technological bending on the linearly moving diaphragm material, and the radian of the technological bending of the diaphragm material is the same as the radian of the arc-shaped groove 52. When it is necessary to adjust the radian of the technological bending of the diaphragm material, it is necessary to replace the supporting seat 5 with an arc-shaped groove 52 with a different radian. When it is necessary to adjust the width of the technological bending area of the diaphragm material, hold the rotating wheel handle 121 and rotate the lead screw 12, and adjust the distance between the workbench 23 and the roller conveyor 3 through the thread transmission between the sliding table 22 and the lead screw 12 to achieve it.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or make equivalent replacements. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A diaphragm bending device with dual functions of flattening and bending, comprising a stand, characterized in that: A bending mechanism and a roller conveyor are respectively arranged on the left and right sides of the pedestal, the base in the bending mechanism is fixed on the pedestal, a slide is arranged in the pedestal for sliding left and right, a workbench is arranged on the slide, a plane support block is arranged on the right side of the workbench close to the roller conveyor, the top surface of the plane support block is flush with the conveying surface of the roller conveyor, a bracket is arranged on the workbench for sliding left and right, an arc groove is arranged on the right side wall of the bracket, the arc groove extends along the circumference of the right side wall, and its radial depth direction extends to the bottom wall of the bracket, there is no solid material interval between the arc groove and the bottom wall of the bracket, and a A cross bar, a sleeve is movably mounted on the cross bar, three second tightening bolts are evenly distributed on the circumference of the sleeve, a tightening bolt is threadedly connected to the right end wall of the cross bar, the swing arm is rotatably arranged on the tightening bolt, the tightening bolt and the right end wall of the cross bar are against the swing arm, a spring bolt is threadedly connected to the swing arm, one end of the tension spring is hooked on the spring bolt, the other end of the tension spring is hooked on any one of the second tightening bolts, a pressure wheel is rotatably arranged on the swing arm, the circumferential wall of the pressure wheel and the left end wall are rounded, and under the pulling force of the tension spring, the circumferential wall of the pressure wheel is against the top surface of the plane support block.

2. The diaphragm bending device with dual functions of flattening and bending according to claim 1, characterized in that: Baffles are vertically arranged on the front and rear side walls of the workbench, limiting grooves are arranged on the inner walls of the baffles, and a top stop portion extending toward the workbench is arranged on the top wall of the baffle. The top wall of the bracket slides against the top stop portions of the two baffles, and the front and rear side walls of the bracket slide against the inner walls of the two baffles respectively. Limiting blocks are protrudingly arranged on the front and rear outer side walls of the bracket. When the bracket moves to the right to completely cover the plane bracket block, the limiting block on the bracket abuts against the groove wall of the limiting groove on the same side.

3. The membrane bending device with the dual functions of flattening and bending according to claim 2 is characterized in that: A double-axis reduction motor is arranged on the left side wall of the workbench away from the roller conveyor, and two rotating shafts are coaxially rotated between the double-axis reduction motor and the two baffles. Gears are fixed on the two rotating shafts, and a rack plate is clamped on the bottom wall of the bracket. The teeth on the rack plate are meshed with the teeth of the two gears. The rack plate extends to the left from the bracket, and when the bracket moves to the left away from the plane bracket block, the rack plate rests on the base.

4. The membrane bending device with dual functions of flattening and bending according to claim 3 is characterized in that: Two limit holes are symmetrically arranged on the front and rear sides of the bottom wall of the rack plate, and two limit cylinders are symmetrically arranged on the front and rear sides of the left side wall of the workbench. Limit plates are arranged on the piston rods of the two limit cylinders. When the bracket moves to the right to completely cover the plane support block, the limit cylinder drives the limit plate to be inserted upward into the corresponding limit hole.

5. The membrane bending device with the dual functions of flattening and bending according to claim 1 is characterized in that: A loop is movably mounted on the base, a first fixing bolt is threadedly connected to the loop, the first fixing bolt abuts against the base, and a crossbar is horizontally fixed on the loop.

6. The membrane bending device with the dual functions of flattening and bending according to claim 1 is characterized in that: The pressure wheel is connected to the encoder, and the encoder is fixed on the swing arm.

7. The membrane bending device with the dual functions of flattening and bending according to claim 1 is characterized in that: A connecting seat is arranged on the pedestal, a lead screw is rotatably arranged between the base and the connecting seat, two guide rods are arranged in parallel on both sides of the lead screw, the slide is threadedly connected to the lead screw, the slide is slidably connected to the two guide rods, one end of the lead screw extends out of the base, and a rotating wheel handle is arranged on the lead screw extending out of the base.

8. The membrane bending device with dual functions of flattening and bending according to claim 1, characterized in that: A rubber pad is arranged on the left side frame of the roller conveyor close to the bending mechanism, and the top surface of the rubber pad is flush with the conveying surface of the roller conveyor and the top surface of the plane support block.

9. The membrane bending device with dual functions of flattening and bending according to claim 1, characterized in that: The plane support block, the support seat and the pressing wheel are all made of the same rubber material.

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