A civil air defense door plate material coiling device and a method for using the same

Abstract

The application relates to a human defense door plate material coiling device, and relates to the field of coiling equipment. The device comprises a base, the upper end of the base is provided with a coiling mechanism for bending plate material, the upper end of the base is provided with a limiting mechanism for limiting the transverse movement of the plate material, one side of the coiling mechanism is provided with a cleaning mechanism for cleaning the metal scraps on the upper end of the plate material, the cleaning mechanism comprises a push plate for pushing down the metal scraps, two adjusting pieces for adjusting the height of the push plate and two supporting side plates for supporting the adjusting pieces, the adjusting pieces are connected with the supporting side plates, the adjusting pieces are connected with the push plate, and the supporting side plates are arranged on the two sides of the base. The application has the effect of prolonging the service life of the device.

Description

Technical Field

[0001] This application relates to the field of plate rolling equipment, and in particular to a plate rolling device for civil defense door panels. Background Technology

[0002] A plate rolling machine is a device that uses work rollers to bend and shape sheet metal. It can form parts of different shapes such as cylindrical and conical parts, and is a very important type of processing equipment.

[0003] For related technology, please refer to Chinese Utility Model Patent No. CN202861057U, which discloses a novel thin plate rolling machine, relating to the field of plate rolling machine technology. It includes a machine base, an upper steel beam, bearings, an upper roller, a lower roller, and a support device. The support device is connected to the lower outer end of the machine base. An upper steel beam is arranged at the upper part between the two machine bases, and an upper roller is arranged at the lower end of the upper steel beam. Several bearings are horizontally distributed between the upper steel beam and the upper roller. A lower roller is arranged at the lower end of the upper roller.

[0004] Regarding the aforementioned technologies, when using the aforementioned plate rolling machine to roll the plate, metal shavings remain at the upper end of the plate. When the plate is squeezed, the shavings can easily damage the plate, the upper roller, and the lower roller, reducing the service life of the device. Summary of the Invention

[0005] To improve the service life of the device, this application provides a device for rolling up the panels of a civil defense door.

[0006] In the first aspect, this application provides a device for rolling up the panels of a civil defense door, which adopts the following technical solution:

[0007] A plate rolling device for a civil defense door includes a base. The upper end of the base is provided with a plate rolling mechanism for bending the plate, and the upper end of the base is provided with a limiting mechanism for restricting the lateral movement of the plate. One side of the plate rolling mechanism is provided with a cleaning mechanism for cleaning metal debris from the upper end of the plate. The cleaning mechanism includes a push plate for pushing the metal debris down, two adjusting members for adjusting the height of the push plate, and two supporting side plates for supporting the adjusting members. The adjusting members are connected to the supporting side plates and the adjusting members are connected to the push plate. The supporting side plates are disposed on both sides of the base.

[0008] By adopting the above technical solution, when the sheet metal needs to be rolled, the limiting mechanism restricts the lateral movement of the sheet metal, the adjusting component adjusts the height of the push plate so that the push plate abuts against the upper surface of the sheet metal, the supporting side plate supports the adjusting component, and the rolling mechanism rolls the sheet metal. This helps to reduce the amount of metal debris left on the upper surface of the sheet metal during the rolling process, thereby reducing the damage to the rolling mechanism during the rolling process and improving the service life of the device.

[0009] Optionally, the adjusting component includes a connecting block for connecting the push plate, a lifting screw for driving the connecting block to rise and fall, and a lifting motor for driving the lifting screw to rotate. The lifting motor is fixedly connected to the supporting side plate, the lifting screw is rotatably connected to the supporting side plate, the lifting screw is vertically arranged, the connecting block is threadedly engaged with the lifting screw, and the connecting block is slidably connected to the supporting side plate.

[0010] By adopting the above technical solution, when the upper surface of the board needs to be cleaned, the lifting motor is started, the output shaft of the lifting motor rotates, which drives the lifting screw to rotate. The lifting screw drives the connecting block to descend, and then the connecting block drives the push plate to descend. The push plate abuts against the upper surface of the board, which makes it easier to clean boards of different thicknesses.

[0011] Optionally, the push plate is movably connected to the connecting block. The connecting block has two grooves, which are arranged sequentially along the conveying direction of the plate. The connecting block is provided with a telescopic spring for popping the push plate out. The telescopic spring is vertically arranged in the groove of the connecting block. One end of the telescopic spring is fixedly connected to the connecting block, and the other end of the telescopic spring is movably connected to the push plate. The connecting block is provided with a plug-in assembly for inserting the push plate.

[0012] By adopting the above technical solution, when the push plate needs to be replaced, the connecting blocks on both sides of the new push plate are rotated to another groove, the push plate is pressed so that the new push plate abuts against the upper end surface of the plate, the plug-in component fixes the new push plate, the plug-in component separates from the push plate to be replaced, and the telescopic spring pops out the push plate to be replaced, thus making the replacement process more convenient and realizing the process of replacing the push plate without stopping the machine, which is conducive to improving processing efficiency.

[0013] Optionally, the plug-in assembly includes a plug block for limiting the upward movement of the push plate and a drive cylinder for driving the plug block to move horizontally. The piston rod of the drive cylinder is connected to the plug block, the cylinder body of the drive cylinder is horizontally set, and a plug-in interface is provided on one side of the push plate. The plug block is movably connected to the plug-in interface of the push plate.

[0014] By adopting the above technical solution, when the push plate needs to be replaced, the drive cylinder is activated, the piston rod of the drive cylinder retracts, the electric insert block moves laterally, the insert block separates from the push plate, and the telescopic spring pops the push plate out, thus making the process of replacing the push plate more convenient.

[0015] Optionally, the limiting mechanism includes two limiting blocks for restricting the lateral movement of the plate, two support plates for supporting the plate, and two lateral movement cylinders for driving the limiting blocks to move horizontally. The cylinder body of the lateral movement cylinder is fixedly connected to the support side plate. The two lateral movement cylinders are arranged opposite each other and are horizontally arranged. The piston rod of the lateral movement cylinder is fixedly connected to the limiting block. The support plate is fixedly connected to the lower end of the limiting block and is located at the end of the limiting block away from the lateral movement cylinder. The support plate is horizontally arranged.

[0016] By adopting the above technical solution, when the sheet metal needs to be rolled, the transverse cylinder is activated. The piston rod of the transverse cylinder extends, causing the limiting block to move laterally. The limiting block abuts against both sides of the sheet metal, thus preventing the sheet metal from shifting laterally and reducing the phenomenon of sheet metal deviation during rolling. The support plate supports the lower end surface of the sheet metal, which helps to roll the sheet metal in a horizontal direction, thereby improving the accuracy of rolling.

[0017] Optionally, the connecting block is connected to a lower pressure plate for pressing the upper surface of the plate on the side near the rolling mechanism. The lower pressure plate is located above the support plate. The lower end surface of the lower pressure plate is provided with several connecting grooves. Several rotating rollers are rotatably connected to the lower pressure plate. The rotating rollers are rotatably connected in the connecting grooves of the lower pressure plate. The rotating rollers are arranged parallel to the push plate.

[0018] By adopting the above technical solution, when the push plate descends, it drives the lower pressure plate to descend, and the lower pressure plate drives the rotating roller to descend. The rotating roller abuts against the upper end surface of the plate. The rotating roller and the support plate cooperate to keep the plate in a horizontal state. At the same time, when the plate moves laterally, the rotating roller rotates, which helps to reduce friction and facilitates the lateral movement of the plate.

[0019] Optionally, the support plate is provided with several brushes for cleaning the lower end surface of the plate on the side near the lifting screw, and the brushes are arranged vertically.

[0020] By adopting the above technical solution, the brush comes into contact with the lower end surface of the board during the transverse movement of the board. The brush cleans the lower end surface of the board, which helps to reduce the phenomenon of debris adhering to the lower end surface of the board. This further reduces the process of the rolling mechanism squeezing debris, and thus helps to improve the service life of the device.

[0021] Optionally, the plate rolling mechanism includes two drive rollers for moving the plate laterally, a bending roller for bending the plate, a drive screw for driving the bending roller to rise and fall, a support block for supporting the bending roller, two drive motors for driving the drive rollers to rotate, a bending motor for driving the bending roller to rotate, and a support frame for supporting the drive rollers. The support frame is connected to the upper end of the base. Both drive rollers are rotatably connected to the support frame and are located on the same horizontal plane. The drive screw is rotatably connected to the support frame and is vertically arranged. The support block is threadedly engaged with the drive screw and is slidably connected to the support frame. The bending roller is rotatably connected to the support block. The bending motor is connected to the support block, and the drive motor is connected to the support frame.

[0022] By adopting the above technical solution, when the sheet material needs to be rolled, the drive motor is started, and the output shaft of the motor drives the drive roller to rotate, which in turn moves the sheet material laterally. Rotating the drive screw causes the support block to descend, which in turn causes the bending roller to descend. The bending roller then contacts the upper end of the sheet material. The bending motor is then started, and its output shaft drives the bending roller to rotate, thus making the rolling process more convenient.

[0023] Secondly, this application provides a method for using a panel rolling device for civil defense doors, employing the following technical solution:

[0024] A method for using a panel rolling device for air-raid shelter doors includes the following steps:

[0025] S1: The worker places one end of the board on the drive roller, starts the transverse cylinder, so that the limit block abuts against both sides of the board, and the support plate supports the lower end of the board.

[0026] S2: Start the lifting motor. The lifting motor drives the lifting screw to rotate. The lifting screw drives the push plate to contact the upper end surface of the plate. At the same time, the lower pressure plate descends and the rotating roller contacts the upper end surface of the plate.

[0027] S3: The drive screw drives the bending roller to contact the sheet metal, which in turn drives the motor to rotate the drive roller. The drive roller moves the sheet metal laterally, and the bending motor drives the bending roller to rotate. The bending roller and the drive roller work together to roll the sheet metal.

[0028] In summary, this application includes at least one of the following beneficial technical effects of the air-raid shelter door panel rolling device:

[0029] 1. By setting a push plate, when the sheet metal needs to be rolled, the limiting mechanism restricts the lateral movement of the sheet metal, the adjusting component adjusts the height of the push plate so that the push plate abuts against the upper end surface of the sheet metal, the supporting side plate supports the adjusting component, and the rolling mechanism rolls the sheet metal. This helps to reduce the amount of metal debris left on the upper surface of the sheet metal during the rolling process, thereby reducing the damage to the rolling mechanism and improving the service life of the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a roll-up device for civil defense door panels.

[0031] Figure 2 This is a schematic diagram illustrating the structure of the telescopic spring in this application.

[0032] Figure 3 This is a schematic diagram of the structure of the limiting block highlighted in this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Base; 2. Cleaning mechanism; 21. Push plate; 22. Adjusting component; 23. Support side plate; 221. Connecting block; 222. Lifting screw; 223. Lifting motor; 211. Groove; 212. Telescopic spring; 213. Insert block; 214. Drive cylinder; 3. Limiting mechanism; 31. Limiting block; 32. Support plate; 33. Horizontal movement cylinder; 34. Lower pressure plate; 35. Rotating roller; 36. Brush; 4. Plate rolling mechanism; 41. Drive roller; 42. Bending roller; 43. Drive screw; 44. Support block; 45. Drive motor; 46. Bending motor; 47. Support frame; 48. Rotating motor. Detailed Implementation

[0034] The present application will be further described in detail below with reference to all the accompanying drawings.

[0035] This application discloses a device for rolling up the panels of civil defense doors.

[0036] Reference Figure 1 A plate rolling device for air-raid shelter doors includes a base 1, a cleaning mechanism 2, a limiting mechanism 3, and a plate rolling mechanism 4. The cleaning mechanism 2, limiting mechanism 3, and plate rolling mechanism 4 are arranged sequentially, all positioned above the base 1. The base 1 supports the cleaning mechanism 2, limiting mechanism 3, and plate rolling mechanism 4. The cleaning mechanism 2 cleans metal debris and impurities from the upper surface of the plate. The limiting mechanism 3 limits the plate to prevent displacement. The plate rolling mechanism 4 rolls the plate.

[0037] Reference Figure 1 and Figure 2 The cleaning mechanism 2 includes a push plate 21, two adjusting components 22, and two supporting side plates 23. The supporting side plates 23 are vertically arranged on both sides of the base 1. The adjusting component 22 includes a connecting block 221, a lifting screw 222, and a lifting motor 223. The lifting screw 222 is rotatably connected to the supporting side plate 23 and is vertically arranged. The lifting motor 223 is fixedly connected to the supporting side plate 23. The output shaft of the lifting motor 223 is coaxially connected to the lifting screw 222. The connecting block 221 is threadedly engaged with the lifting screw 222. The connecting block 221 is slidably connected to the supporting side plate 23 and is movably connected to the push plate 21.

[0038] Reference Figure 1 and Figure 2When the sheet metal needs to be rolled, the lifting motor 223 is started. The output shaft of the lifting motor 223 drives the lifting screw 222 to rotate. The lifting screw 222 drives the connecting block 221 to descend. The connecting block 221 drives the push plate 21 to descend. The push plate 21 abuts against the upper end surface of the sheet metal. When the rolling mechanism 4 rolls the sheet metal, the sheet metal moves laterally. The push plate 21 pushes down the metal shavings and debris on the upper end surface of the sheet metal, which helps to reduce the phenomenon of metal shavings remaining on the upper surface of the sheet metal, making the rolling mechanism 4 less prone to damage and helping to improve the service life of the device. At the same time, the push plate 21 descends and abuts against the upper end surface of the sheet metal, which facilitates the cleaning of sheet metal of different thicknesses.

[0039] Reference Figure 1 and Figure 2 Two grooves 211 are provided on opposite sides of the two connecting blocks 221. The two grooves 211 are arranged sequentially along the conveying direction of the plate. A telescopic spring 212 is fixedly connected to the connecting block 221. The telescopic spring 212 is vertically arranged. One side of the push plate 21 is movably connected to the groove 211 of the connecting block 221. The upper end of the telescopic spring 212 is movably connected to the lower end of the push plate 21. The connecting block 221 is provided with two sets of plug-in components. The plug-in components include plug blocks 213 and drive cylinders 214. Both sides of the push plate 21 are provided with plug-in interfaces. The cylinder body of the drive cylinder 214 is fixedly connected to the connecting block 221. The drive cylinder 214 is horizontally arranged and located in the groove 211. The piston rod of the drive cylinder 214 passes through one end of the connecting block 221 and is fixedly connected to the plug block 213. The plug block 213 is movably connected to the plug-in interface of the push plate 21. The plug block 213 is compatible with the plug-in interface.

[0040] Reference Figure 1 and Figure 2 After a period of use, the push plate 21 becomes damaged and needs to be replaced. The operator inserts the new push plate 21 into the groove 211 of the connecting block 221, presses the push plate 21, and the push plate 21 compresses the telescopic spring 212, activating the drive cylinder 214. The piston rod of the drive cylinder 214 extends, causing the insert block 213 to move laterally and insert into the insertion interface of the push plate 21. At the same time, the piston rod of the other drive cylinder 214 retracts, causing the insert block 213 to separate from the push plate 21. The telescopic spring 212 pops out the push plate 21 that needs to be replaced, making the process of replacing the push plate 21 more convenient and enabling the replacement of the push plate 21 without stopping the machine. During the replacement process, the other push plate 21 continues to clean the material, which helps to improve processing efficiency.

[0041] Reference Figure 1 and Figure 3The limiting mechanism 3 includes two limiting blocks 31, two support plates 32, two transverse cylinders 33, a lower pressure plate 34, and several rotating rollers 35. The two transverse cylinders 33 are fixedly connected to the two support side plates 23 respectively. The transverse cylinders 33 are horizontally arranged and located between the rolling plate mechanism 4 and the push plate 21. The two transverse cylinders 33 are arranged opposite to each other. The piston rod of the transverse cylinder 33 passes through one end of the support side plate 23 and is fixedly connected to the limiting block 31. The side of the limiting block 31 away from the transverse cylinder 33 is fixedly connected to the support plate 32. The support plate 32 is arranged at the lower end of the limiting block 31 and is horizontally arranged. The two ends of the lower pressure plate 34 are fixedly connected to the two connecting blocks 221 respectively. The lower pressure plate 34 is horizontally arranged and has several connecting grooves on its lower end surface. The rotating rollers 35 are rotatably connected in the connecting grooves of the lower pressure plate 34 and are parallel to the push plate 21.

[0042] Reference Figure 1 and Figure 3 When the sheet material needs to be rolled, the push plate 21 descends and comes into contact with the sheet material. The lower pressure plate 34 descends along with the connecting block 221, causing the rotating roller 35 to contact the upper surface of the sheet material. Simultaneously, the transverse cylinder 33 is activated, and its piston rod extends, causing the limiting block 31 to move laterally. The limiting block 31 contacts both sides of the sheet material, thus preventing the sheet material from shifting during rolling and improving rolling accuracy. The support plate 32 and the rotating roller 35 work together to keep the sheet material horizontal, facilitating rolling the sheet material to the required angle. Furthermore, the rotation of the rotating roller 35 during lateral movement reduces friction, making lateral movement of the sheet material easier.

[0043] Reference Figure 1 and Figure 3 Several brushes 36 are provided on one side of the support plate 32 near the lifting screw 222. The brushes 36 are set vertically. During the horizontal movement of the plate, the brushes 36 abut against the lower end surface of the plate. The brushes 36 clean the lower end surface of the plate, which helps to reduce the phenomenon of debris adhering to the lower end surface of the plate. This further reduces the process of the rolling mechanism 4 squeezing debris, and thus helps to improve the service life of the device.

[0044] Reference Figure 1 and Figure 2The plate rolling mechanism 4 includes two drive rollers 41, a bending roller 42, two drive screws 43, two support blocks 44, two drive motors 45, a bending motor 46, a support frame 47, and two rotary motors 48. The support frame 47 is fixedly connected to the upper end of the base 1. The two drive screws 43 are rotatably connected to both sides of the support frame 47, and the drive screws 43 are vertically arranged. The rotary motors 48 are fixedly connected to the support frame 47, and the output shaft of the rotary motors 48 is coaxially connected to the drive screws 43. The support blocks 44 are threadedly engaged with the drive screws 43. 4 is slidably connected to the support frame 47. The bending roller 42 is rotatably connected between the two support blocks 44. The bending motor 46 is fixedly connected to one of the support blocks 44. The output shaft of the bending motor 46 is coaxially connected to the bending roller 42. The drive roller 41 is rotatably connected to the support frame 47. The two drive rollers 41 are arranged in parallel and located on the same horizontal plane. The drive motor 45 is fixedly connected to the support frame 47. The output shaft of the drive motor 45 is coaxially connected to the drive roller 41. The horizontal axis of the drive roller 41 near the bending roller 42 is on the same plane as the upper end surface of the support plate 32.

[0045] Reference Figure 1 and Figure 2 When the sheet material needs to be rolled, the sheet material is placed on the upper end of the drive roller 41, the rotation motor 48 is started, the output shaft of the rotation motor 48 rotates, driving the drive screw 43 to rotate, the drive screw 43 drives the support block 44 to descend, the support block 44 drives the bending roller 42 to descend, the bending roller 42 abuts against the sheet material, the drive motor 45 is started, the output shaft of the drive motor 45 drives the drive roller 41 to rotate, the drive roller 41 drives the sheet material to move laterally, the bending roller 42 and the drive roller 41 cooperate to roll the sheet material, making the rolling process more convenient.

[0046] The implementation principle of the air defense door panel rolling device in this application embodiment is as follows: When the panel needs to be rolled, one end of the panel is placed above the drive roller 41, the lifting motor 223 is started, the output shaft of the lifting motor 223 drives the lifting screw 222 to rotate, the lifting screw 222 drives the connecting block 221 to descend, the connecting block 221 drives the push plate 21 to descend, and the push plate 21 abuts against the upper end surface of the panel.

[0047] After the push plate 21 descends and comes into contact with the plate, the lower pressure plate 34 descends with the connecting block 221, causing the rotating roller 35 to come into contact with the upper end surface of the plate. At the same time, the transverse cylinder 33 is activated, and the piston rod of the transverse cylinder 33 extends, driving the limit block 31 to move laterally. The limit block 31 comes into contact with both sides of the plate. Meanwhile, the support plate 32 and the rotating roller 35 cooperate to keep the plate in a horizontal state.

[0048] Then start the rotating motor 48. The output shaft of the rotating motor 48 rotates, which drives the drive screw 43 to rotate. The drive screw 43 drives the support block 44 to descend. The support block 44 drives the bending roller 42 to descend. The bending roller 42 comes into contact with the plate. Then start the rotating motor 45. The output shaft of the rotating motor 45 drives the drive roller 41 to rotate. The drive roller 41 drives the plate to move laterally. The bending roller 42 and the drive roller 41 cooperate to roll the plate.

[0049] This application also discloses a method for using a steel plate rolling device for civil defense doors, which adopts the following technical solution:

[0050] A method for using a panel rolling device for air-raid shelter doors includes the following steps:

[0051] S1: The worker places one end of the board on the drive roller 41, starts the transverse cylinder 33, so that the limit block 31 abuts against both sides of the board, and the support plate 32 supports the lower end face of the board.

[0052] S2: Start the lifting motor 223. The lifting motor 223 drives the lifting screw 222 to rotate. The lifting screw 222 drives the push plate 21 to abut against the upper end surface of the plate. At the same time, the lower pressure plate 34 descends and the rotating roller 35 abuts against the upper end surface of the plate.

[0053] S3: The drive screw 43 drives the bending roller 42 to contact the plate, drives the motor 45 to drive the drive roller 41 to rotate, the drive roller 41 drives the plate to move laterally, the bending motor 46 drives the bending roller 42 to rotate, the bending roller 42 and the drive roller 41 cooperate to roll the plate.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A plate rolling device for air-raid shelter doors, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a plate rolling mechanism (4) for bending the plate, and the upper end of the base (1) is provided with a limiting mechanism (3) for restricting the lateral movement of the plate. One side of the plate rolling mechanism (4) is provided with a cleaning mechanism (2) for cleaning metal debris at the upper end of the plate. The cleaning mechanism (2) includes a push plate (21) for pushing down the metal debris, two adjusting members (22) for adjusting the height of the push plate (21), and two supporting side plates (23) for supporting the adjusting members (22). The adjusting members (22) are connected to the supporting side plates (23), and the adjusting members (22) are connected to the push plate (21). The supporting side plates (23) are located on both sides of the base (1). The adjusting component (22) includes a connecting block (221) for connecting the push plate (21), a lifting screw (222) for driving the connecting block (221) to rise and fall, and a lifting motor (223) for driving the lifting screw (222) to rotate. The lifting motor (223) is fixedly connected to the supporting side plate (23), the lifting screw (222) is rotatably connected to the supporting side plate (23), the lifting screw (222) is vertically arranged, the connecting block (221) is threadedly engaged with the lifting screw (222), and the connecting block (221) is slidably connected to the supporting side plate (23). The push plate (21) is movably connected to the connecting block (221). The connecting block (221) has two grooves (211) arranged sequentially along the plate conveying direction. The connecting block (221) is provided with a telescopic spring (212) for popping the push plate (21). The telescopic spring (212) is vertically arranged in the groove (211) of the connecting block (221). One end of the telescopic spring (212) is fixedly connected to the connecting block (221), and the other end of the telescopic spring (212) is movably connected to the push plate (21). The connecting block (221) is provided with a plug-in assembly for inserting the push plate (21). The plug-in assembly includes a plug block (213) for limiting the rise of the push plate (21) and a drive cylinder (214) for driving the plug block (213) to move horizontally. The piston rod of the drive cylinder (214) is connected to the plug block (213). The cylinder body of the drive cylinder (214) is set horizontally. A plug-in interface is provided on one side of the push plate (21). The plug block (213) is movably connected to the plug-in interface of the push plate (21). The limiting mechanism (3) includes two limiting blocks (31) for limiting the lateral movement of the plate, two support plates (32) for supporting the plate, and two lateral movement cylinders (33) for driving the limiting blocks (31) to move horizontally. The cylinder body of the lateral movement cylinder (33) is fixedly connected to the support side plate (23). The two lateral movement cylinders (33) are arranged opposite to each other and are horizontally arranged. The piston rod of the lateral movement cylinder (33) is fixedly connected to the limiting block (31). The support plate (32) is fixedly connected to the lower end of the limiting block (31). The support plate (32) is located at the end of the limiting block (31) away from the lateral movement cylinder (33) and is horizontally arranged. The connecting block (221) is connected to a lower pressure plate (34) for pressing the upper surface of the plate near the rolling mechanism (4). The lower pressure plate (34) is located above the support plate (32). The lower end surface of the lower pressure plate (34) is provided with several connecting grooves. The lower pressure plate (34) is rotatably connected to several rotating rollers (35). The rotating rollers (35) are rotatably connected in the connecting grooves of the lower pressure plate (34). The rotating rollers (35) are arranged parallel to the push plate (21).

2. The air-raid shelter door panel rolling device according to claim 1, characterized in that: The support plate (32) is provided with several brushes (36) on the side near the lifting screw (222) for cleaning the lower end surface of the plate. The brushes (36) are set vertically.

3. The air-raid shelter door panel rolling device according to claim 1, characterized in that: The plate rolling mechanism (4) includes two drive rollers (41) for moving the plate laterally, a bending roller (42) for bending the plate, a drive screw (43) for driving the bending roller (42) to rise and fall, a support block (44) for supporting the bending roller (42), two drive motors (45) for driving the drive rollers (41) to rotate, a bending motor (46) for driving the bending roller (42) to rotate, and a support frame (47) for supporting the drive rollers (41). The support frame (47) is connected to the upper end of the base (1). Both drive rollers (41) are rotatably connected to the support frame (47), and both drive rollers (41) are located on the same horizontal plane. The drive screw (43) is rotatably connected to the support frame (47) and is vertically set. The support block (44) is threadedly engaged with the drive screw (43) and is slidably connected to the support frame (47). The bending roller (42) is rotatably connected to the support block (44). The bending motor (46) is connected to the support block (44), and the drive motor (45) is connected to the support frame (47).

4. A method for using a panel rolling device for air-raid shelter doors, comprising the panel rolling device for air-raid shelter doors as described in claim 3, characterized in that: Includes the following steps: S1: The staff places one end of the board on the drive roller (41), starts the transverse cylinder (33), so that the limit block (31) abuts against both sides of the board, and the support plate (32) supports the lower end of the board. S2: Start the lifting motor (223), the lifting motor (223) drives the lifting screw (222) to rotate, the lifting screw (222) drives the push plate (21) to abut against the upper end surface of the plate, and at the same time the lower pressure plate (34) descends, and the rotating roller (35) abuts against the upper end surface of the plate. S3: The drive screw (43) drives the bending roller (42) to contact the plate, drives the motor (45) to drive the drive roller (41) to rotate, the drive roller (41) drives the plate to move laterally, the bending motor (46) drives the bending roller (42) to rotate, the bending roller (42) and the drive roller (41) cooperate to roll the plate.

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