A type of anti-rewinding steel plate leveling machine

Abstract

This invention provides an anti-rewinding steel plate leveling machine, relating to the technical field of steel plate leveling machines. It includes a leveling machine body, a conveying mechanism, a mounting base, and a lifting structure. A connecting frame is installed on one side of the leveling machine body. A pre-calibration structure is formed on the upper surface of the mounting base via the lifting structure. The pre-calibration structure includes a straightening component, an elastic component, and a protective component. The straightening component includes two mounting plates, which are mounted on the mounting base via the lifting structure. The two mounting plates are rotatably connected to a lower roller shaft, the height of which is level with the connecting frame and the conveying mechanism. An upper horizontal plate is fixedly connected to the upper surfaces of the two mounting plates. The elastic component includes two damping tubes, with piston rods installed on the inner walls of the damping tubes. This invention solves the problem that when processing steel plates with large initial deformation, the leveling machine is subjected to extreme leveling forces, causing wear on the work rollers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel coil flattening machine, in particular to a steel coil flattening machine capable of preventing back rolling. BACKGROUND

[0002] The steel coil flattening machine capable of preventing back rolling is a precision equipment specially designed for correcting metal plates, especially coil plates. Through special roller design and tension control, the equipment can eliminate the internal stress of the plate and effectively prevent the rebound phenomenon of the plate after flattening, thereby ensuring that the plate meets the high flatness requirement.

[0003] The existing steel coil flattening machine takes a multi-roller flattening device as the core, and the mainstream includes a stand-alone type and a “two-in-one” type integrating uncoiling and flattening. Through 7-11 groups of working rollers arranged in an upper-lower staggered manner (partially adopting unequal distance and gradually changing diameter design), the steel coil plate is subjected to repeated reverse bending to realize the gradual balance between the outer plastic deformation and the inner elastic rebound, thereby releasing the residual stress generated during rolling and cooling and eliminating defects such as middle waves and edge waves.

[0004] The existing steel coil flattening machine capable of preventing back rolling has a limited spacing of the working shaft. When directly flattening a steel plate with a large-amplitude initial deformation, the flattening machine will bear the limit flattening force, causing wear of the working roller and further unnecessary loss. SUMMARY

[0005] The present application aims to solve the problem in the prior art that the flattening machine bears the limit flattening force and the working roller is worn when processing a steel plate with a large-amplitude initial deformation, and proposes a steel coil flattening machine capable of preventing back rolling.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a flattening machine body, a conveying mechanism, an additional seat, and a lifting structure are provided. A connecting frame is installed on one side of the flattening machine body. A pre-calibration structure is formed on the upper surface of the additional seat by means of the lifting structure. The pre-calibration structure includes a straightening assembly, an elastic assembly, and a protection assembly. The straightening assembly includes two assembly plates, which are installed on the additional seat by means of the lifting structure. A lower roller shaft is rotatably connected to the two assembly plates. The height of the lower roller shaft is level with the connecting frame and the conveying mechanism. An upper horizontal plate is fixedly connected to the upper surfaces of the two assembly plates. The elastic assembly includes two damping tubes. A piston rod is installed on the inner wall of the damping tube. A spring is sleeved on the circular surface of the piston rod. A washer is fixedly connected to the end of the spring away from the damping tube. The spring is located between the upper horizontal plate and the washer. A linkage plate is fixedly connected to the ends of the two piston rods away from the damping tube. Two additional parts are fixedly connected to the lower surface of the linkage plate. An upper roller shaft is rotatably connected to the two additional parts. The upper roller shaft and the two lower roller shafts are arranged in a staggered manner.

[0007] The effects achieved by the above-mentioned components are as follows: by adding a pre-calibration structure, the elastic components can adapt to the initial deformation of the sheet metal, transforming large-amplitude initial deformation into small-amplitude deformation, so that the original leveling machine does not need to bear the ultimate leveling force, and reducing the wear of the work rollers.

[0008] Preferably, the piston rod has an adjusting disc threadedly connected to its arc surface, and the adjusting disc is rotatably connected to the washer.

[0009] The effect achieved by the above components is that by adding an adjustment disc, the spring can be compressed upwards, thereby increasing the downward pressure strength of the upper roller.

[0010] Preferably, the protective component includes a lower covering, which is fixedly connected to the arc surface of the lower roller shaft. The lower covering is a polyurethane covering. An upper covering is fixedly connected to the arc surface of the upper roller shaft. The upper covering is also a polyurethane covering.

[0011] The effect achieved by the above components is that the use of polyurethane coating can effectively prevent scratches on the surface of the board.

[0012] Preferably, the arc surface of the spring is fitted with a bellows, and the bellows is fixedly connected to the damping tube.

[0013] The effect achieved by the above-mentioned components is that by adding a bellows, the spring and other components can be protected without affecting the normal use of the spring.

[0014] Preferably, the lifting structure includes a lifting assembly and a stabilizing assembly. The lifting assembly includes an L-shaped plate, which is fixedly connected to two mounting plates. A motor is mounted on the upper surface of the mounting base, and an assembly frame is fixedly connected to the upper surface of the mounting base. A transmission rod is fixedly connected to the output end of the motor. A driving component is threadedly connected to the arc surface of the transmission rod. The driving component is fixedly connected to the long arm end of the L-shaped plate. A limit rod is fixedly connected to the upper surface of the mounting base. A limit member is slidably connected to the arc surface of the limit rod, and the limit member is fixedly connected to the short arm end of the L-shaped plate.

[0015] The effect achieved by the above components is that by adding a lifting structure, it is possible to determine whether to use a pre-calibration structure to process the plate according to the initial amplitude of the steel plate, thereby reducing one process and improving work efficiency.

[0016] Preferably, the stabilizing component includes a support member, which is fixedly connected to the side of the driving member near the limiting member, and is fixedly connected to the long arm end of the L-shaped plate. A support plate is fixedly connected to the lower surface of the support member.

[0017] The effect achieved by the above components is that by adding support members and cooperating with the support plate, the pressure at the connection point between the drive component and the L-shaped plate can be reduced, thereby improving durability.

[0018] Preferably, four auxiliary plates are fixedly connected to the upper surface of the mounting base, and the four auxiliary plates are slidably connected to the L-shaped plate.

[0019] The effect achieved by the above components is that by adding four auxiliary plates, the lifting assembly can be further supported and limited, thereby improving stability.

[0020] Preferably, an auxiliary structure is provided on one side of the two assembly plates that are close to each other. The auxiliary structure includes a screw, which is rotatably connected to the two assembly plates respectively. A plurality of first gear teeth are fixedly connected to the arc surface of the adjusting disc. Two adjusting members are threadedly connected to the arc surface of the screw. A plurality of second gear teeth are fixedly connected to the side of the adjusting member corresponding to the adjusting disc. The second gear teeth mesh with the first gear teeth. An auxiliary rod is fixedly connected on one side of the two assembly plates that are close to each other. The auxiliary rod is slidably connected to the two adjusting members respectively.

[0021] The effect achieved by the above components is that, by adding an auxiliary structure, two adjustment discs can be adjusted simultaneously, allowing for a more convenient and efficient adjustment of the compression of the spring by the adjustment discs.

[0022] Preferably, one end of the screw is fixedly connected to a lever frame, which consists of a ring and three rods.

[0023] The effect achieved by the above components is that by adding a lever frame, rotating the screw becomes more effortless and convenient, thus improving adjustment efficiency.

[0024] Preferably, the upper and lower surfaces of the adjusting member are respectively fixedly connected with wrapping plates, and the second gear tooth is located between the two wrapping plates.

[0025] The effect achieved by the above-mentioned components is that by adding a wrapping plate, the first and second gear teeth can be wrapped inside and limited to prevent them from misaligning when the torque is large.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0027] 1. In this invention, when leveling steel plates with large amplitudes, the steel plate to be leveled can be placed on a conveying mechanism. Then, the conveying mechanism and the leveling machine are started. The conveying mechanism moves the steel plate between the lower roller and the upper roller. During the process of the steel plate passing through the lower roller and the upper roller, the polyurethane coating of the upper roller and the lower roller will generate adaptive compression according to the deformation contour of the plate. The protruding parts of the plate will squeeze the roller surface. With the help of the spring, the compressed piston rod moves upward to absorb the pressure, causing the upper roller to slightly retract and generate a reverse elastic force to perform "soft pre-bending" on the protruding parts. This pre-bending will not produce hard contact like a rigid roller, but will gradually release the residual stress inside the plate through elastic deformation, transforming large amplitude deformation into small amplitude deformation, reducing the leveling load of the subsequent leveling machine. By adding a pre-calibration structure, the presence of elastic components can adapt to the initial deformation of the plate, transforming the large amplitude initial deformation into small amplitude deformation, so that the original leveling machine does not need to bear the ultimate leveling force, reducing the wear of the working roller.

[0028] 2. In this invention, the thickness and amplitude of the plate can also be used to determine whether to rotate the adjustment plate to compress the spring, thereby increasing the strength of the reverse elastic force. The bellows can protect the spring and other components without affecting the normal use of the spring. After the plate is removed from the pre-calibration structure, it will enter the shaft of the leveling machine for leveling. After leveling is completed, the leveling machine and the conveying mechanism can be closed. By adding the adjustment plate, the spring can be compressed upward to enhance the downward pressure strength of the upper roller shaft.

[0029] 3. In this invention, when the amplitude of the plate to be leveled is small, the motor can be started to rotate the transmission rod, and the driving component on it moves upward, driving the L-shaped plate upward until the upper surface of the L-shaped plate is level with the upper surface of the connecting frame. Then the plate can be directly sent into the leveling machine without skipping the pre-calibration structure. By adding a lifting structure, it is possible to decide whether to use the pre-calibration structure to process the plate according to the initial amplitude of the steel plate. Reducing one process can improve work efficiency.

[0030] 4. In this invention, when the thickness of the plate is large, the screw can be rotated with the help of the lever frame to push the adjusting component away from the lever frame, thereby causing the adjusting plate to rotate. The adjusting plate moves upward along the piston rod. This process will compress the spring, thereby increasing the downward pressure of the upper roller shaft to cope with thicker plates. By adding an auxiliary structure, two adjusting plates can be adjusted at the same time, so as to adjust the compression of the spring by the adjusting plate in a more convenient and efficient way. Attached Figure Description

[0031] Figure 1 A three-dimensional structural schematic diagram of an anti-rewinding steel plate leveling machine is provided for this invention;

[0032] Figure 2This invention provides a schematic diagram of the internal structure of an anti-rewinding steel plate leveling machine.

[0033] Figure 3 This invention proposes an anti-rewinding steel plate leveling machine. Figure 1 Schematic diagram of a partial structure;

[0034] Figure 4 This invention proposes an anti-rewinding steel plate leveling machine. Figure 3 Schematic diagram of a partial structure;

[0035] Figure 5 This invention proposes an anti-rewinding steel plate leveling machine. Figure 4 Front view;

[0036] Figure 6 This invention proposes an anti-rewinding steel plate leveling machine. Figure 4 Partial structural disassembly diagram;

[0037] Figure 7 This invention provides a partial structural diagram of the pre-calibration structure of an anti-rewinding steel plate leveling machine;

[0038] Figure 8 This invention provides a partial structural disassembly diagram of the elastic component of an anti-rewinding steel plate leveling machine;

[0039] Figure 9 This invention proposes an anti-rewinding steel plate leveling machine. Figure 8 Partial structural disassembly diagram;

[0040] Figure 10 This invention provides a cross-sectional view of the elastic component of an anti-rewinding steel plate leveling machine;

[0041] Figure 11 This invention provides a partial structural diagram of the lifting structure of an anti-rewinding steel plate leveling machine;

[0042] Figure 12 This invention provides a schematic diagram of an auxiliary structure for an anti-rewinding steel plate leveling machine;

[0043] Figure 13 This invention proposes an anti-rewinding steel plate leveling machine. Figure 12 Schematic diagram of the internal structure of the wrapping board.

[0044] Legend: 1. Leveling machine body; 2. Pre-calibration structure; 21. Straightening component; 211. Assembly plate; 212. Lower roller shaft; 213. Upper horizontal plate; 22. Elastic component; 221. Damping tube; 222. Piston rod; 223. Spring; 224. Washer; 225. Linkage plate; 226. Additional parts; 227. Upper roller shaft; 228. Adjusting disc; 23. Protective component; 231. Lower covering; 232. Upper covering; 233. Corrugated pipe; 3. Lifting structure; 31. Lifting... 311. Lowering component; 312. L-shaped plate; 313. Motor; 314. Transmission rod; 315. Driving component; 316. Assembly frame; 317. Limiting component; 32. Limiting rod; 32. Stabilizing component; 321. Support component; 322. Support plate; 323. Auxiliary plate; 4. Auxiliary structure; 41. First gear tooth; 42. Screw; 43. Adjusting component; 44. Second gear tooth; 45. Auxiliary rod; 46. Wrapping plate; 47. Assist frame; 5. Connecting frame; 6. Conveying mechanism; 7. Mounting seat. Detailed Implementation

[0045] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0046] Reference Figure 1 As shown, the present invention provides a technical solution: a steel plate leveling machine for preventing backwinding, including a leveling machine body 1, a conveying mechanism 6, an mounting base 7 and a lifting structure 3. A connecting frame 5 is installed on one side of the leveling machine body 1. A pre-calibration structure 2 is provided on the upper surface of the mounting base 7 with the help of the lifting structure 3. An auxiliary structure 4 is provided on the side of the two mounting plates 211 that are close to each other.

[0047] The specific setup and function of its pre-calibration structure 2, lifting structure 3 and auxiliary structure 4 will be explained below.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown in this embodiment: the pre-calibration structure 2 includes a straightening component 21, an elastic component, and a protective component 23. The straightening component 21 includes two mounting plates 211, which are mounted on the mounting base 7 via a lifting structure 3. The two mounting plates 211 are rotatably connected to a lower roller shaft 212, the height of which is level with the connecting frame 5 and the conveying mechanism 6. An upper horizontal plate 213 is fixedly connected to the upper surface of the two mounting plates 211. The elastic component includes two damping tubes 221, with piston rods 222 installed on the inner wall of each damping tube 221. A spring 223 is fitted onto the arc surface of the piston rod 222. A washer 224 is fixedly connected to the end of the spring 223 away from the damping tube 221, and the spring 223 is located between the upper horizontal plate 213 and the washer 224. A linkage plate 225 is fixedly connected to the end of the two piston rods 222 away from the damping tube 221, and two mounting parts 226 are fixedly connected to the lower surface of the linkage plate 225. Two mounting components 226 are rotatably connected to an upper roller shaft 227. The upper roller shaft 227 and two lower roller shafts 212 are arranged alternately. An adjusting disc 228 is threadedly connected to the arc surface of the piston rod 222. The adjusting disc 228 is rotatably connected to a washer 224. The adjusting disc 228 can compress the spring 223 upwards to enhance the downward pressure strength of the upper roller shaft 227. The protective assembly 23 includes a lower covering 231, which is fixed to the arc surface of the lower roller shaft 212. The lower covering 231 is a polyurethane covering, and the upper covering 232 is fixedly connected to the arc surface of the upper roller 227. The upper covering 232 is also a polyurethane covering. The use of polyurethane covering can effectively prevent scratches on the surface of the board. The arc surface of the spring 223 is fitted with a bellows 233, which is fixedly connected to the damping tube 221. By adding the bellows 233, the spring 223 and other components can be protected without affecting the normal use of the spring 223.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 11As shown in this embodiment: the lifting structure 3 includes a lifting assembly 31 and a stabilizing assembly 32. The lifting assembly 31 includes an L-shaped plate 311, which is fixedly connected to two assembly plates 211. A motor 312 is mounted on the upper surface of the mounting base 7, and an assembly frame 315 is fixedly connected to the upper surface of the mounting base 7. A transmission rod 313 is fixedly connected to the output end of the motor 312. A driving component 314 is threadedly connected to the arc surface of the transmission rod 313. The driving component 314 is fixedly connected to the long arm end of the L-shaped plate 311. A limiting rod 317 is fixedly connected to the upper surface of the mounting base 7. A limiting component 316 is slidably connected to the arc surface of the limiting rod 317. The limiting component 316 is connected to the L-shaped plate 311. The short arm end of 1 is fixedly connected. The stabilizing component 32 includes a support member 321. The support member 321 is fixedly connected to the side of the drive member 314 near the limiting member 316. The support member 321 is fixedly connected to the long arm end of the L-shaped plate 311. A support plate 322 is fixedly connected to the lower surface of the support member 321. The cooperation between the support member 321 and the support plate 322 can reduce the pressure at the connection point between the drive member 314 and the L-shaped plate 311 and improve durability. Four auxiliary plates 323 are fixedly connected to the upper surface of the mounting seat 7. The four auxiliary plates 323 are slidably connected to the L-shaped plate 311. The four auxiliary plates 323 can further support and limit the lifting component 31 and improve stability.

[0050] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 12 and Figure 13 As shown in this embodiment: the auxiliary structure 4 includes a screw 42, which is rotatably connected to two assembly plates 211 respectively. A plurality of first gear teeth 41 are fixedly connected to the arc surface of the adjusting disc 228. Two adjusting components 43 are threadedly connected to the arc surface of the screw 42. A plurality of second gear teeth 44 are fixedly connected to the side of the adjusting component 43 corresponding to the adjusting disc 228. The second gear teeth 44 mesh with the first gear teeth 41. An auxiliary rod 45 is fixedly connected to the side of the two assembly plates 211 that is close to each other. The auxiliary rod 45 is connected to the two adjusting components 43. The components 43 are slidably connected. One end of the screw 42 is fixedly connected to a lever frame 47, which consists of a ring and three rods. By adding the lever frame 47, it is easier and more convenient to rotate the screw 42, thus improving the adjustment efficiency. The upper and lower surfaces of the adjusting component 43 are fixedly connected to wrapping plates 46. The second gear tooth 44 is located between the two wrapping plates 46. By adding the wrapping plates 46, the first gear tooth 41 and the second gear tooth 44 can be wrapped inside and limited to prevent them from misaligning when the torque is large.

[0051] Detailed Instructions for Use: When leveling steel plates with large amplitude vibrations, place the steel plate to be leveled on the conveyor mechanism 6, then start the conveyor mechanism 6 and the leveler. The conveyor mechanism 6 moves the steel plate between the lower roller 212 and the upper roller 227. As the steel plate passes through the lower roller 212 and the upper roller 227, the polyurethane coating of the upper roller 227 and the lower roller 212 will adaptively compress according to the deformation contour of the plate. The protruding parts of the plate will squeeze the roller surface, and with the help of the spring 223, the piston rod 222 moves upward to draw the plate in. The pressure is applied, causing the upper roller 227 to slightly retract, while simultaneously generating a reverse elastic force to perform a "gentle pre-bending" on the protruding parts. This pre-bending does not produce hard contact like a rigid roller, but rather gradually releases the residual stress inside the board through elastic deformation, transforming large-amplitude deformation into small-amplitude deformation, reducing the leveling load of the subsequent leveling machine. By adding a pre-calibration structure 2, the elastic component can adapt to the initial deformation of the board, transforming large-amplitude initial deformation into small-amplitude deformation, so that the original leveling machine does not need to bear the ultimate leveling force, reducing the wear of the working roller.

[0052] At the same time, it can be determined whether to rotate the adjusting plate 228 to compress the spring 223 according to the thickness and amplitude of the plate, thereby increasing the strength of the reverse elastic force. The bellows 233 can protect the spring 223 and other components without affecting the normal use of the spring 223. After the plate is removed from the pre-calibration structure 2, it will enter the shaft of the leveling machine body 1 for leveling. After leveling is completed, the leveling machine body 1 and the conveying mechanism 6 can be closed. By adding the adjusting plate 228, the spring 223 can be compressed upward to enhance the downward pressure strength of the upper roller shaft 227.

[0053] When the amplitude of the plate to be leveled is small, the motor 312 can be started to rotate the transmission rod 313. The drive component 314 on it moves upward, driving the L-shaped plate 311 upward until the upper surface of the L-shaped plate 311 is level with the upper surface of the connecting frame 5. Then the plate can be directly sent into the leveling machine without skipping the pre-calibration structure 2. By adding the lifting structure 3, it is possible to decide whether to use the pre-calibration structure 2 to process the plate according to the initial amplitude of the steel plate. Reducing one process can improve work efficiency.

[0054] When the plate thickness is large, the screw 42 can be rotated by the lever 47, causing the adjusting component 43 to be pushed away from the lever 47, which in turn causes the adjusting plate 228 to rotate. The adjusting plate moves upward along the piston rod 222, which will compress the spring 223, thereby increasing the downward pressure of the upper roller 227 to cope with thicker plates. By adding the auxiliary structure 4, two adjusting plates 228 can be adjusted at the same time, so as to adjust the compression of the spring 223 by the adjusting plate 228 in a more convenient and efficient way.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An anti-backroll steel plate leveler, comprising a leveler body (1), a conveying mechanism (6), an installation seat (7) and a lifting structure (3), characterized in that: The side of the leveling machine body (1) is provided with a connecting frame (5), the upper surface of the additional seat (7) is provided with a pre-calibration structure (2) through a lifting structure (3), the pre-calibration structure (2) comprises a straightening assembly (21), an elastic assembly and a protection assembly (23), the straightening assembly (21) comprises two assembly plates (211), the two assembly plates (211) are installed on the additional seat (7) through the lifting structure (3), the two assembly plates (211) are rotationally connected with a lower roller shaft (212) in common, the height of the lower roller shaft (212) is level with the connecting frame (5) and a conveying mechanism (6), the upper surfaces of the two assembly plates (211) are fixedly connected with an upper cross plate (213) in common, the elastic assembly comprises two damping tubes (221), the inner wall of the damping tube (221) is provided with a piston rod (222), the circular surface of the piston rod (222) is sleeved with a spring (223), the end, away from the damping tube (221), of the spring (223) is fixedly connected with a gasket (224), the spring (223) is located between the upper cross plate (213) and the gasket (224), the ends, away from the damping tube (221), of the two piston rods (222) are fixedly connected with a linkage plate (225) in common, the lower surface of the linkage plate (225) is fixedly connected with two additional parts (226), the two additional parts (226) are rotationally connected with an upper roller shaft (227) in common, the upper roller shaft (227) and the two lower roller shafts (212) are staggered, the circular surface of the piston rod (222) is screw-connected with an adjusting disc (228), the adjusting disc (228) is rotationally connected with the gasket (224), the lifting structure (3) comprises a lifting assembly (31) and a stabilizing assembly (32), the lifting assembly (31) comprises an L-shaped plate (311), the L-shaped plate (311) is fixedly connected with the two assembly plates (211), the upper surface of the additional seat (7) is provided with a motor (312), the upper surface of the additional seat (7) is fixedly connected with an assembly frame (315), the output end of the motor (312) is fixedly connected with a transmission rod (313), the circular surface of the transmission rod (313) is screw-connected with a driving part (314), the driving part (314) is fixedly connected with the long-arm end of the L-shaped plate (311), the upper surface of the additional seat (7) is fixedly connected with a limiting rod (317), the circular surface of the limiting rod (317) is slidingly connected with a limiting part (316), the limiting part (316) is fixedly connected with the short-arm end of the L-shaped plate (311).

2. A roll-back prevention plate straightening machine according to claim 1, characterized in that: The protection assembly (23) comprises a lower cladding part (231), the lower cladding part (231) is fixedly connected with the circular surface of the lower roller shaft (212), the lower cladding part (231) is a polyurethane cladding part, the circular surface of the upper roller shaft (227) is fixedly connected with an upper cladding part (232), the upper cladding part (232) is a polyurethane cladding part.

3. The anti-roll plate leveler of claim 1, wherein: The circular surface of the spring (223) is sleeved with a bellows (233), the bellows (233) is fixedly connected with the damping tube (221). The circular surface of the spring (223) is sleeved with a bellows (233), the bellows (233) is fixedly connected with the damping tube (221).

4. The anti-roll plate leveler of claim 1, wherein: The stable assembly (32) comprises a support (321), one side of the support (321) is fixedly connected with the driving part (314) close to the limiting part (316), the long-arm end of the L-shaped plate (311) is fixedly connected with the support (321), and the lower surface of the support (321) is fixedly connected with a support plate (322).

5. The anti-roll plate leveler according to claim 1, wherein: The upper surface of the additional seat (7) is fixedly connected with four auxiliary plates (323), and the four auxiliary plates (323) are in sliding connection with the L-shaped plate (311) together.

6. The anti-roll plate leveler of claim 1, wherein: The two assembly plates (211) are provided with an auxiliary structure (4) on the side close to each other together, the auxiliary structure (4) comprises a screw rod (42), the screw rod (42) is rotationally connected with the two assembly plates (211) respectively, the circular arc surface of the adjusting disc (228) is fixedly connected with a plurality of first gear teeth (41), the circular arc surface of the screw rod (42) is screwedly connected with two adjusting parts (43), the side, corresponding to the adjusting disc (228), of the adjusting part (43) is fixedly connected with a plurality of second gear teeth (44), the second gear teeth (44) are in mesh with the first gear teeth (41), the side, close to each other of the two assembly plates (211), is fixedly connected with an auxiliary rod (45) together, the auxiliary rod (45) is in sliding connection with the two adjusting parts (43) respectively.

7. A roll-back prevention plate straightening machine according to claim 6, characterized in that: One end of the screw rod (42) is fixedly connected with a leverage frame (47), and the leverage frame (47) is composed of a circular ring and three circular rods.

8. A roll-back prevention plate straightening machine according to claim 6, characterized in that: The upper surface and the lower surface of the adjusting part (43) are fixedly connected with wrapping plates (46) respectively, and the second gear teeth (44) are located between the two wrapping plates (46).

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