A roller leveling machine with adjustable upper and lower roller gaps

Abstract

The present application relates to the technical field of sheet material leveling, and specifically discloses a roller leveling machine with adjustable upper and lower roller gaps, comprising an upper roller box, a lower roller box, a fixed beam, and multiple sets of lifting cylinders, the fixed end of the lifting cylinder is arranged on the fixed beam, and a movable beam is rotatably arranged on the lifting cylinder, the upper roller box and the lower roller box are both installed under the movable beam, a first adjusting component is arranged on the movable beam and the upper roller box, and a second adjusting component is arranged on the lower roller box; the first adjusting component of the present application lifts and lowers the upper roller box, and the lifting cylinders on both sides of the movable beam realize the inclination of the upper roller box, gradually reducing the leveling rolling pressure on the thin plate and reducing the impact of the leveling rolling on the thin plate; the second adjusting component adjusts the height of a single lower roller to realize a wavy adjustable setting of the lower roller, and the wavy lower roller forms a progressive leveling path, which reduces the elastic rebound of the thick plate by gradually releasing the stress in stages, and also avoids the high energy consumption mode of the traditional horizontal roller requiring synchronous pressure on the entire roller surface.

Description

Technical Field

[0001] The present application relates to the technical field of sheet metal leveling, and in particular to a roller leveling machine with adjustable upper and lower roller gaps. Background Art

[0002] A roller leveler is a mechanical device that applies pressure to metal sheets using multiple sets of staggered upper and lower rollers, leveraging the material's elastic and plastic deformation properties to eliminate internal stress and correct deformation. Its core function is to release stress by repeatedly bending the sheet, restoring the material to a flat state. It is widely used in metal processing applications such as stainless steel, aluminum, copper, and hot-rolled sheet, encompassing applications such as automotive manufacturing, electronics, construction, shipbuilding, and home appliance production. It significantly improves sheet flatness, geometric accuracy, and surface quality, ensuring the stability of subsequent stamping, cutting, welding, and other processes.

[0003] Conventional roller levelers typically consist of a frame, an upper roller cassette, a lower roller cassette, a hydraulic drive system, a transmission, and a control system. The upper roller cassette is mounted on the frame for lifting and lowering, with multiple upper rollers rotatably mounted on it. The lower roller cassette is fixed to the frame, with multiple lower rollers rotatably mounted on it. The transmission is connected to the upper and lower roller cassettes to drive their rotation. The hydraulic drive system is connected to the upper roller cassette to raise and lower it. The control system controls the operating status and spacing of the upper and lower roller cassettes to meet the needs of the upper and lower rollers for leveling and rolling plates of varying thicknesses.

[0004] For the above-mentioned related technologies, the upper roller can only be raised and lowered vertically to change the distance between the upper roller and the lower roller. When the plate is thin, multiple upper rollers and multiple lower rollers repeatedly level and roll the plate, which may cause problems such as material fatigue of the plate. When the plate is thick, the upper roller and lower roller set in complete parallel synchronously pressurize the plate, the output energy consumption is high, and it may not be possible to effectively eliminate the deep residual stress of the plate, so improvements are made to this. Summary of the Invention

[0005] In order to perform targeted leveling and rolling on plates of different thicknesses, the present application provides a roller leveling machine with adjustable upper and lower roller gaps.

[0006] The present application provides a roller leveling machine with adjustable upper and lower roller gaps, which adopts the following technical solutions:

[0007] A roller leveler with adjustable upper and lower roller gaps comprises a column, an upper roller box and a lower roller box, a fixed beam and multiple sets of lifting cylinders are arranged above the column, the fixed ends of the multiple sets of lifting cylinders are rotatably arranged on the lower end surface of the fixed beam, a movable beam is rotatably arranged on the output end of the lifting cylinder, a base is arranged below the column, a locking piece is arranged on the movable beam for fixing the upper roller box to the movable beam, a stabilizing component is arranged on the base for stably connecting the lower roller box to the base, and the upper Multiple groups of upper rollers are arranged in the roller box, and the movable beam and the upper roller box are provided with a first adjustment component for making the multiple upper rollers rise and fall synchronously, and multiple groups of lower rollers are arranged in the lower roller box, and the lower roller box is provided with a second adjustment component for making a single group of lower rollers rise and fall separately, and the same side ends of the multiple groups of upper rollers and the multiple groups of lower rollers are connected with a universal telescopic coupling, and the universal telescopic coupling is provided with a driving motor for rotating the universal telescopic coupling to drive the upper roller and the lower roller to rotate.

[0008] By adopting the above technical solution, multiple sets of lifting cylinders are started synchronously, and the lifting cylinders drive the movable beam to descend. The locking parts on the movable beam are used to achieve a fixed connection between the movable beam and the upper roller box, thereby realizing the up and down lifting drive of the upper roller box. The stabilizing component in this application can achieve a stable connection between the chassis and the lower roller box, thereby improving the stability of the upper and lower roller boxes when leveling the sheet metal.

[0009] When the thickness of the sheet material is small, repeated leveling and rolling of the sheet material by multiple upper rollers and multiple lower rollers may cause problems such as material fatigue of the sheet material. The lifting cylinder in this application is rotatably connected to the fixed beam, and the lifting cylinder is also rotatably connected to the movable beam. Therefore, when the telescopic end lengths of the lifting cylinders on both sides of the movable beam are inconsistent, the upper roller box can be tilted, so that an angle appears between the upper roller box and the lower roller box. At this time, the distance between the upper roller and the lower roller gradually increases on the movement path of the thin sheet material, thereby leveling and rolling the sheet material, gradually reducing the leveling and rolling pressure on the thin sheet material, thereby reducing the impact of leveling and rolling on the performance of the thin sheet material itself.

[0010] The second adjustment component in the present application can adjust the height of a single lower roller, thereby realizing a wavy adjustable setting of multiple lower rollers. The raised part of the wavy lower roller forms a local high-pressure area, which can concentrate on applying a larger leveling torque, breaking through the high rigidity resistance of the thick plate, and effectively eliminating deep residual stress. The undulations of the wavy lower roller form multiple bending points. When the plate passes through, it undergoes a bending-reverse bending cycle in sequence, forming a progressive leveling path. By gradually releasing stress in stages, the elastic rebound of the thick plate is reduced. The arrangement of the wavy lower roller can dynamically adjust the pressure distribution on different areas of the plate. For plates with uneven thickness, multiple lower rollers can automatically compensate for the pressure to reduce local over-correction or under-correction. The wavy lower rollers can also disperse the leveling force to multiple contact points, avoiding the high-energy consumption mode of traditional horizontal rollers that require synchronous pressure on the entire roller surface.

[0011] Optionally, the first adjusting assembly includes multiple groups of first driving cylinders, multiple groups of first driving blocks, multiple groups of first adjusting blocks, a first mounting frame, a first assisting roller group, a first reset member and a second reset member. Multiple groups of the first driving cylinders are fixedly arranged on the movable beam, multiple groups of the first driving blocks are respectively fixedly arranged on the telescopic ends of multiple groups of the first driving cylinders, and multiple groups of the first driving blocks are movably arranged in the movable beam. Multiple groups of the first adjusting blocks are all lifted and lowered in the movable beam and abutted against below the multiple groups of the first driving blocks. The contact surfaces of the first driving blocks and the first adjusting blocks are both inclined surfaces. The telescopic end of the first driving cylinder drives the The first driving block moves horizontally, and the horizontal movement of the first driving block drives the first adjusting block to move up and down. The first reset member is provided on the first adjusting block, and is used to reset the first adjusting block. The first mounting frame is provided on the upper roller box, and is in contact with the side of the first adjusting block away from the first driving block. Multiple groups of upper rollers are rotatably provided on the first mounting frame, and multiple groups of first assisting roller groups are provided. Multiple groups of the first assisting roller groups are rotatably provided between the first mounting frame and the upper roller, and are used to support multiple groups of upper rollers. The second reset member is provided in the upper roller box, and is used to make the upper roller abut against the first assisting roller group.

[0012] When the lifting block is lifted up, the lifting arm of the lifting block is lifted up, and the first adjusting block is lifted up and down, thereby realizing the overall lifting of the upper roller on the first mounting frame. According to the lifting oil cylinder on both sides of the movable beam, the length of the telescopic end of the lifting oil cylinder on both sides of the movable beam is inconsistent, and an angle can be formed between the upper roller box and the lower roller box according to the thickness of the thin plate, thereby realizing the overall deflection of the upper roller. The first reset member can automatically rise and reset the first adjusting block when the telescopic end of the first driving oil cylinder is shortened, so as to facilitate the height adjustment of the upper roller next time. The second reset member can make the upper roller and the first auxiliary roller closely contact each other, so that the first auxiliary roller can provide more effective support for the upper roller, thereby improving the stability of the upper roller during rotation.

[0013] Optionally, a plurality of second adjustment assemblies are provided corresponding to the plurality of groups of lower rollers, and the second adjustment assembly includes a second driving cylinder, a second driving block, a second adjusting block, a second mounting frame, a second assisting roller group and a third reset member. The second driving cylinder is fixedly provided on the lower roller box, the second driving block is fixedly provided on the telescopic end of the second driving cylinder, and the second driving block and the first driving block are perpendicular to each other in horizontal projection. The second adjusting block is abutted above the second driving block and is lifted and lowered in the lower roller box. The surfaces where the second driving block and the second adjusting block contact each other are both inclined surfaces. When the second driving cylinder drives the second driving block to move horizontally, the second driving block drives the second adjusting block to move up and down. The second mounting frame is provided on a surface of the plurality of groups of second adjusting blocks away from the second driving block and is located in the lower roller box. The lower roller is rotatably provided on the second mounting frame, and the second assisting roller group is rotatably provided between the second mounting frame and the lower roller for supporting the lower roller. The third reset member is provided in the lower roller box for making the lower roller abut against the second assisting roller group.

[0014] By adopting the above technical solution, the second driving cylinder is started, and the telescopic end of the second driving cylinder is extended and retracted, driving the second driving block to move horizontally. Since the surfaces of the second driving block and the second adjusting block in contact with each other are both inclined surfaces, the horizontal movement of the second driving block can drive the second adjusting block to move up and down. When the second adjusting block is lifted up and down, it can drive the second mounting bracket on the second adjusting block to move up and down, thereby realizing the lifting and lowering of the lower roller on the second mounting bracket. Since the second adjusting assembly is provided with multiple groups corresponding to the number of lower rollers, it is possible to realize the individual lifting and lowering of a single lower roller, thereby realizing the adjustable wavy setting of multiple lower rollers. The third reset member can make the lower roller and the second auxiliary roller closely abut against each other, so that the second auxiliary roller can provide more effective support for the lower roller, thereby improving the stability of the lower roller during rotation.

[0015] Optionally, the stabilizing assembly includes a lifting cylinder, a lifting block, and a roller, the roller is arranged below the lower roller box, the lifting cylinder is arranged on the side wall of the chassis, and the lifting block is arranged on the telescopic end of the lifting cylinder, and a wheel hole is opened above the chassis corresponding to the lifting block. When the lower roller box is used, the roller portion is located in the wheel hole.

[0016] By adopting the above technical solution, the jacking cylinder is started, and the telescopic end of the jacking cylinder drives the jacking block to rise to completely push the roller out of the card wheel hole, and then the lower roller box is moved by the roller to achieve the separation of the chassis and the lower roller box. When it is necessary to achieve a stable connection between the chassis and the lower roller box, the telescopic end of the jacking cylinder is first extended to make the jacking block enter the card wheel hole, and then the lower roller box is moved to the chassis by the roller, and the roller is moved to just above the jacking block, the telescopic end of the jacking cylinder is shortened to make part of the roller enter the card wheel hole, thereby achieving the limitation of the roller and improving the stability of the connection between the lower roller box and the chassis.

[0017] Optionally, a guide rail is provided on the side of the chassis away from the drive motor corresponding to the roller, a pulling seat is provided on the guide rail, the pulling seat is fixedly connected to the lower roller box, a pulling chain is provided under the pulling seat, sprockets are rotatably provided on both sides of the guide rail, the pulling chain is engaged with the sprocket, a pulling motor is provided on the side of the guide rail away from the drive motor, and the output shaft of the pulling motor is connected to the sprocket on the side of the guide rail away from the drive motor.

[0018] By adopting the above technical solution, after the pulling seat and the lower roller box are fixedly connected, the pulling motor is driven, and the pulling motor drives the sprocket to rotate. Since the sprocket and the pulling chain are engaged with each other, the pulling seat can be driven to move, thereby moving the lower roller box out of the chassis, realizing convenient movement of the lower roller box and the upper roller box, and facilitating operations such as replacement and maintenance of the upper and lower rollers.

[0019] Optionally, a conveyor belt is provided on one side of the chassis, and the conveyor belt is used to transport the sheet material between the upper roller box and the lower roller box. The conveyor belt includes multiple groups of conveyor rollers, and the multiple groups of conveyor rollers are arranged at intervals. Lifting channel steels are arranged between adjacent conveying rollers for lifting and lowering, and a rotating wheel is arranged for rotation inside the lifting channel steel. The rotation direction of the rotating wheel is perpendicular to the conveying direction of the material. A centering cylinder is provided under the lifting channel steel, and the lifting channel steel is provided on the telescopic end of the centering cylinder. Pushing cylinders are symmetrically and horizontally provided on both sides of the conveyor belt, and a centering plate is provided on the telescopic end of the pushing cylinder.

[0020] By adopting the above technical solution, when the plate moves on the conveyor roller to above the lifting channel steel, the centering cylinder is started, and the centering cylinder drives the lifting channel steel to rise, so that the wheel on the lifting channel steel abuts against the plate, and then the pushing cylinder is started to push the centering plate. The centering plates on both sides of the conveyor belt approach each other to push and adjust the plate, thereby realizing the adjustment of the plate position and facilitating the leveling of the plate. The wheel converts sliding friction into rolling friction to reduce the friction between the plate and the conveyor roller, reduce the scratches on the plate caused by friction when the plate is centered, and reduce the workload of the pushing cylinder.

[0021] Optionally, mounting plates are provided on both sides of the conveyor belt close to the chassis, a lifting block is provided on the mounting plate for lifting and lowering, an electric telescopic rod is provided on the mounting plate, the telescopic end of the electric telescopic rod is connected to the lifting block, an upper feed roller is rotatably provided on the lifting block, a lower feed roller is also rotatably provided on the mounting plate, the lower feed roller is set directly below the upper feed roller, and a feed motor for rotating the lower feed roller is provided on the mounting plate, guide rollers are rotatably and vertically provided on the mounting plate, and the spacing between the two groups of guide rollers is slightly larger than the material width setting.

[0022] By adopting the above technical solution, the electric telescopic rod is started, and the telescopic end of the electric telescopic rod is extended to drive the upper feeding roller on the lifting block to descend to a suitable height, and then the feeding motor is started, and the feeding motor drives the lower feeding roller to rotate, and the rotation installation of the upper feeding roller cooperates with the rotation of the lower feeding roller to realize the feeding of the plate. The spacing between the two sets of guide rollers is slightly larger than the material width setting, which can achieve further limitation of the plate, thereby avoiding the plate from being leveled when it is not centered, and can also avoid the plate width exceeding the limit and colliding with the leveler, causing damage to the leveler.

[0023] Optionally, the upper roller box is provided with a plurality of air outlets for spraying high-speed airflow onto the surface of the material before leveling the material.

[0024] By adopting the above technical solution, the air outlet can spray high-speed airflow to remove impurities such as metal debris on the surface of the plate, thereby avoiding the situation where the debris causes wear on the plate surface when the plate is leveled and rolled.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the thickness of the sheet material is small, repeated leveling and rolling of the sheet material by multiple upper rollers and multiple lower rollers may cause problems such as material fatigue of the sheet material. The lifting cylinder in the present application is rotatably connected to the fixed beam, and the lifting cylinder is also rotatably connected to the movable beam. Therefore, when the telescopic end lengths of the lifting cylinders on both sides of the movable beam are inconsistent, the upper roller box can be tilted, so that an angle appears between the upper roller box and the lower roller box. At this time, the spacing between the upper roller and the lower roller is gradually increased on the movement path of the thin sheet material, thereby leveling and rolling the sheet material, gradually reducing the leveling and rolling pressure on the thin sheet material, thereby reducing the impact of the leveling and rolling on the performance of the thin sheet material itself;

[0027] 2. The second adjustment component in the present application can adjust the height of a single lower roller, thereby realizing a wavy adjustable setting of multiple lower rollers. The raised part of the wavy lower roller forms a local high-pressure area, which can concentrate on applying a larger leveling torque, breaking through the high rigidity resistance of the thick plate and effectively eliminating deep residual stress. The undulations of the wavy lower roller form multiple bending points. When the plate passes through, it undergoes a bending-reverse bending cycle in sequence, forming a progressive leveling path. By gradually releasing stress in stages, the elastic rebound of the thick plate is reduced. In addition, the arrangement of the wavy lower roller can dynamically adjust the pressure distribution on different areas of the plate. For plates with uneven thickness, multiple lower rollers can automatically compensate for the pressure, reducing local over-correction or under-correction. The wavy lower rollers also disperse the leveling force to multiple contact points, avoiding the high energy consumption mode of traditional horizontal rollers that require synchronous pressure on the entire roller surface.

[0028] 3. When the plate moves on the conveyor roller to the top of the lifting channel steel, the centering cylinder is started, which drives the lifting channel steel to rise, so that the wheel on the lifting channel steel contacts the plate. Then the pushing cylinder is started to push the centering plate. The centering plates on both sides of the conveyor belt approach each other to push and adjust the plate, thereby adjusting the position of the plate and facilitating the leveling of the plate. The wheel converts sliding friction into rolling friction to reduce the friction between the plate and the conveyor roller, thereby reducing the scratches on the plate caused by friction when the plate is centered, and reducing the workload of the pushing cylinder.

[0029] 4. After the pulling seat and the lower roller box are fixedly connected, the pulling motor is driven. The pulling motor drives the sprocket to rotate. Since the sprocket and the pulling chain are engaged with each other, the pulling seat can be driven to move, thereby moving the lower roller box out of the chassis, realizing the convenient movement of the lower roller box and the upper roller box, and facilitating the replacement and maintenance of the upper and lower rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 yes Figure 1 Schematic diagram of part of the structure;

[0033] Figure 3 yes Figure 2 Schematic diagram of part of the structure;

[0034] Figure 4 yes Figure 3 Schematic diagram of part of the structure;

[0035] Figure 5 yes Figure 4 Schematic diagram of part of the structure;

[0036] Figure 6 yes Figure 5 Schematic diagram of part of the structure;

[0037] Figure 7 yes Figure 1 Another part of the structural diagram;

[0038] Figure 8 yes Figure 2 An enlarged schematic diagram of part A.

[0039] Figure numerals: 1, column; 11, fixed beam; 12, lifting cylinder; 13, movable beam; 14, chassis; 15, locking member; 2, upper roller box; 21, upper roller; 3, lower roller box; 31, lower roller; 4, stabilizing assembly; 41, lifting cylinder; 42, lifting block; 43, roller; 44, card wheel hole; 5, first adjustment assembly; 51, first driving cylinder; 52, first driving block; 53, first adjustment block; 54, first mounting frame; 55, first assist roller group; 56, first reset member; 57, second reset member; 6, second adjustment assembly; 61, second driving cylinder; 62, first Second driving block; 63. Second adjusting block; 64. Second mounting frame; 65. Second assist roller group; 66. Third reset member; 7. Universal telescopic coupling; 8. Driving motor; 9. Guide rail; 91. Pulling seat; 92. Pulling chain; 93. Sprocket; 94. Pulling motor; 10. Conveyor belt; 101. Conveying roller; 102. Lifting channel steel; 103. Rotating wheel; 104. Centering cylinder; 105. Pushing cylinder; 106. Centering plate; a. Mounting plate; a1. Lifting block; a2. Electric telescopic rod; a3. Upper feed roller; a4. Lower feed roller; a5. Feed motor; a6. Guide roller. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 This application is described in further detail.

[0041] The present application discloses a roller leveling machine with adjustable upper and lower roller gaps. Figures 1-8 The upper and lower roller gaps of the roller leveling machine are adjustable, including a column 1, an upper roller box 2 and a lower roller box 3. A fixed beam 11 and a plurality of lifting cylinders 12 are rotatably installed on the upper part of the column 1. The fixed ends of the plurality of lifting cylinders 12 are rotatably installed on the lower end surface of the fixed beam 11. A movable beam 13 is rotatably installed on the output end of the lifting cylinder 12. A chassis 14 is fixedly installed below the column 1. A locking member 15 is installed on the movable beam 13. A stabilizing assembly 4 is installed on the chassis 14. A plurality of upper rollers 21 are rotatably installed in the upper roller box 2. A first adjusting assembly 5 is installed on the movable beam 13 and the upper roller box 2. A plurality of lower rollers 31 are rotatably installed in the lower roller box 3. A second adjusting assembly 6 is installed on the lower roller box 3. The plurality of upper rollers 21 and the plurality of lower rollers 31 are bolted on the same side ends thereof. A universal telescopic coupling 7 is installed on the universal telescopic coupling 7. A driving motor 8 is installed on the upper roller box 2. A plurality of air outlets are also provided on the upper roller box 2.

[0042] Multiple groups of lifting cylinders 12 are started synchronously, and the lifting cylinders 12 drive the movable beam 13 to descend. The locking piece 15 on the movable beam 13 realizes a fixed connection between the movable beam 13 and the upper roller box 2, thereby realizing the up and down lifting drive of the upper roller box 2. The stabilizing component 4 in this embodiment can realize a stable connection between the chassis 14 and the lower roller box 3, thereby improving the stability of the upper roller box 2 and the lower roller box 3 when the sheet is leveled. When the universal telescopic coupling 7 realizes the change in height of the upper roller 21 and the lower roller 31, the drive motor 8 can still rotate the upper roller 21 and the lower roller 31, and the air outlet can spray high-speed airflow to remove impurities such as metal debris on the surface of the sheet, thereby avoiding the wear of the sheet surface caused by debris when the sheet is leveled and rolled.

[0043] When the thickness of the sheet material is small, multiple upper rollers 21 and multiple lower rollers 31 repeatedly level and roll the sheet material, which may cause problems such as material fatigue of the sheet material. The lifting cylinder 12 in this embodiment is rotatably connected to the fixed beam 11, and the lifting cylinder 12 is also rotatably connected to the movable beam 13. Therefore, when the telescopic end lengths of the lifting cylinders 12 on both sides of the movable beam 13 are inconsistent, the upper roller box 2 can be tilted, so that an angle appears between the upper roller box 2 and the lower roller box 3. At this time, the distance between the upper roller 21 and the lower roller 31 gradually increases on the movement path of the thin sheet material, thereby leveling and rolling the sheet material, gradually reducing the leveling and rolling pressure on the thin sheet material, thereby reducing the impact of leveling and rolling on the performance of the thin sheet material itself.

[0044] The second adjustment component 6 in this embodiment can adjust the height of a single lower roller 31, thereby realizing a wavy adjustable setting of multiple lower rollers 31. The raised part of the wavy lower roller 31 forms a local high-pressure area, which can concentrate on applying a larger leveling torque, break through the high rigidity resistance of the thick plate, and effectively eliminate deep residual stress. The undulations of the wavy lower roller 31 form multiple bending points. When the plate passes through, it undergoes a bending-reverse bending cycle in sequence, forming a progressive leveling path. By gradually releasing stress in stages, the elastic rebound of the thick plate is reduced. The arrangement of the wavy lower roller 31 can dynamically adjust the pressure distribution on different areas of the plate. For plates with uneven thickness, multiple lower rollers 31 can automatically compensate for the pressure to reduce local over-correction or under-correction. The wavy lower roller 31 also disperses the leveling force to multiple contact points, avoiding the high-energy consumption mode of traditional horizontal rollers that require synchronous pressure on the entire roller surface.

[0045] In order to solve the problem that the repeated leveling and rolling of the plate by the multiple upper rollers 21 and the multiple lower rollers 31 may cause material fatigue of the plate, the first adjustment assembly 5 in this embodiment includes multiple groups of first driving cylinders 51, multiple groups of first driving blocks 52, multiple groups of first adjustment blocks 53, a first mounting frame 54, a first assisting roller group 55, a first reset member 56 and a second reset member 57, the multiple groups of first driving cylinders 51 are fixedly mounted on the movable beam 13, the multiple groups of first driving blocks 52 are respectively fixedly mounted on the telescopic ends of the multiple groups of first driving cylinders 51, and the multiple groups of first driving blocks 52 are movably mounted in the movable beam 13, and the multiple groups of first The adjusting blocks 53 are all installed in the movable beam 13 for lifting and lowering, and are installed in abutment under multiple groups of first driving blocks 52. The surfaces where the first driving block 52 and the first adjusting block 53 contact each other are both inclined surfaces. The first reset member 56 is installed on the first adjusting block 53. The first mounting frame 54 is installed on the upper roller box 2 and is in abutment with the surface of the first adjusting block 53 away from the first driving block 52. Multiple groups of upper rollers 21 are all rotatably installed on the first mounting frame 54. Multiple groups of first assisting roller groups 55 are installed. Multiple groups of first assisting roller groups 55 are all rotatably installed between the first mounting frame 54 and the upper roller 21. The second reset member 57 is installed in the upper roller box 2.

[0046] The first drive cylinder 51 is activated. The extension and retraction of the telescopic end of the first drive cylinder 51 drives the first drive block 52 to move horizontally. Since the contact surfaces of the first drive block 52 and the first adjustment block 53 are both inclined surfaces, the horizontal movement of the first drive block 52 can drive the first adjustment block 53 to move up and down. When the first adjustment block 53 is lifted or lowered, the first mounting frame 54 on the first adjustment block 53 can be lifted or lowered, thereby achieving the overall lifting and lowering of the upper roller 21 on the first mounting frame 54. In conjunction with the inconsistent lengths of the telescopic ends of the lifting cylinders 12 on both sides of the movable beam 13, an angle can be created between the upper roller box 2 and the lower roller box 3 according to the thickness of the thin plate, thereby achieving the overall deflection of the upper roller 21. The first reset member 56 can automatically raise and reset the first adjustment block 53 when the telescopic end of the first drive cylinder 51 is shortened, facilitating the next height adjustment of the upper roller 21. The second reset member 57 can ensure that the upper roller 21 is in close contact with the first auxiliary roller, so that the first auxiliary roller can provide more effective support for the upper roller 21, thereby improving the stability of the upper roller 21 during rotation.

[0047] In this embodiment, the first reset member 56 includes a spring, a lifting rod, a lifting plate, a limit block and a fixed block. The lifting plate is installed below the first adjusting block 53. There are two groups of lifting rods installed. The two groups of lifting rods are fixedly mounted on the lifting plate and are located on both sides of the first adjusting block 53. The fixed block is welded and mounted inside the upper movable beam 13 and is mounted above the first adjusting block 53. The fixed block and the lifting rod are movably connected. The limit block is fixedly welded and mounted on the lifting rod and is located above the fixed block. The spring is sleeved and mounted on the lifting rod and is located between the limit block and the fixed block. When the first adjusting block 53 descends, the lifting plate and the lifting rod are driven to descend synchronously. At this time, the spring is compressed between the fixed block and the limit block. Conversely, the compressed spring drives the first adjusting rod to rise and reset so that the first adjusting rod can be raised and lowered next time. In other embodiments, the first reset member 56 can be an electric telescopic rod a2 or other device that can directly drive the first adjusting rod to rise and fall.

[0048] In this embodiment, the second reset member 57 includes a connecting rod, a spring and a connecting block. The connecting block is fixedly mounted on the first mounting frame 54. One end of the connecting rod is rotatably connected to the upper roller 21, and the other end is movably connected to the connecting block by socket. The spring is sleeved and mounted on the connecting rod and is located below the connecting block. One end of the spring is fixedly connected to the connecting rod, and the other end is fixedly connected to the connecting block. The spring is always in a stretched state, providing a pulling force for the upper roller 21 in the direction of the first assisting roller group 55, and always keeping the first assisting roller group 55 providing support to the upper roller 21.

[0049] When the plate is thicker, it is difficult for the mutually parallel upper rollers 21 and lower rollers 31 to eliminate the stress inside the plate, and the overall power consumption of the equipment will be increased. Therefore, in this embodiment, the second adjustment assembly 6 is installed with multiple groups corresponding to the multiple groups of lower rollers 31. The second adjustment assembly 6 includes a second driving cylinder 61, a second driving block 62, a second adjustment block 63, a second mounting frame 64, a second assisting roller group 65 and a third reset member 66. The second driving cylinder 61 is fixedly mounted on the lower roller box 3, the second driving block 62 is fixedly mounted on the telescopic end of the second driving cylinder 61, and the second driving block 62 and the first driving block 52 are arranged perpendicular to each other in horizontal projection, the second adjusting block 63 is installed in abutment above the second driving block 62, and is installed in the lower roller box 3 for lifting, and the surfaces where the second driving block 62 and the second adjusting block 63 contact each other are both inclined surfaces, the second mounting frame 64 is installed on the side of the multiple groups of second adjusting blocks 63 away from the second driving block 62, and is located in the lower roller box 3, the lower roller 31 is rotatably installed on the second mounting frame 64, the second auxiliary roller group 65 is rotatably installed between the second mounting frame 64 and the lower roller 31, and the third reset member 66 is installed in the lower roller box 3.

[0050] When the second driving cylinder 61 is started, the telescopic end of the second driving cylinder 61 is extended and retracted, driving the second driving block 62 to move horizontally. Since the surfaces of the second driving block 62 and the second adjusting block 63 in contact with each other are both inclined surfaces, the horizontal movement of the second driving block 62 can drive the second adjusting block 63 to move up and down. When the second adjusting block 63 is lifted and down, it can drive the second mounting bracket 64 on the second adjusting block 63 to move up and down, thereby realizing the lifting and lowering of the lower roller 31 on the second mounting bracket 64. Since the second adjusting assembly 6 is provided with multiple groups corresponding to the number of lower rollers 31, it is possible to realize the individual lifting and lowering of a single lower roller 31, thereby realizing the adjustable wavy setting of multiple lower rollers 31. The third reset member 66 can make the lower roller 31 and the second auxiliary roller closely abut each other, so that the second auxiliary roller can provide more effective support for the lower roller 31, thereby improving the stability of the lower roller 31 during rotation. In this embodiment, the second reset member 57 is set together with the third reset member 66.

[0051] The stability of the lower roller 31 and the upper roller 21 can improve the processing effect of the sheet material, so the stabilizing assembly 4 in this embodiment includes a lifting cylinder 41, a lifting block 42, and a roller 43. The roller 43 is rotatably installed under the lower roller box 3, and the lifting cylinder 41 is fixedly installed on the side wall of the chassis 14, and the lifting block 42 is welded and installed on the telescopic end of the lifting cylinder 41. A card wheel hole 44 is opened above the chassis 14 corresponding to the lifting block 42.

[0052] Start the jacking cylinder 41, and the telescopic end of the jacking cylinder 41 drives the jacking block 42 to rise and completely push the roller 43 out of the card wheel hole 44, and then the lower roller box 3 is moved by the roller 43 to achieve the separation of the chassis 14 and the lower roller box 3. When it is necessary to achieve a stable connection between the chassis 14 and the lower roller box 3, the telescopic end of the jacking cylinder 41 is first extended to make the jacking block 42 enter the card wheel hole 44, and then the lower roller box 3 is moved to the chassis 14 by the roller 43, and the roller 43 is moved to the top of the jacking block 42, and the telescopic end of the jacking cylinder 41 is shortened to make part of the roller 43 enter the card wheel hole 44, thereby achieving the limitation of the roller 43 and improving the stability of the connection between the lower roller box 3 and the chassis 14.

[0053] A guide rail 9 is fixedly mounted on the side of the chassis 14 away from the drive motor 8, corresponding to the roller 43. A pulling seat 91 is movably mounted on the guide rail 9. The pulling seat 91 is fixedly connected to the lower roller box 3 by bolts. A pulling chain 92 is fixedly connected below the pulling seat 91. Sprockets 93 are rotatably mounted on both sides of the guide rail 9. The pulling chain 92 engages with the sprockets 93. A pulling motor 94 is mounted on the side of the guide rail 9 away from the drive motor 8. The output shaft of the pulling motor 94 is fixedly connected to the sprocket 93 on the side of the guide rail 9 away from the drive motor 8. After the pulling seat 91 is fixedly connected to the lower roller box 3, the pulling motor 94 is driven, and the pulling motor 94 drives the sprocket 93 to rotate. Since the sprocket 93 and the pulling chain 92 engage with each other, the pulling seat 91 can be driven to move, thereby removing the lower roller box 3 from the chassis 14, thereby realizing convenient movement of the lower roller box 3 and the upper roller box 2, and facilitating operations such as replacement and maintenance of the upper roller 21 and the lower roller 31.

[0054] A conveyor belt 10 is installed on one side of the chassis 14. The conveyor belt 10 is used to transport the sheet material between the upper roller box 2 and the lower roller box 3. The conveyor belt 10 includes multiple groups of conveying rollers 101, and the multiple groups of conveying rollers 101 are installed at intervals. Lifting channel steels 102 are installed between adjacent conveying rollers 101 for lifting and lowering. A turntable 103 is installed in the lifting channel steel 102 for rotation. The rotation direction of the turntable 103 is perpendicular to the conveying direction of the material. A centering cylinder 104 is fixedly installed under the lifting channel steel 102, and the lifting channel steel 102 is welded and installed on the telescopic end of the centering cylinder 104. Pushing cylinders 105 are symmetrically and horizontally installed on both sides of the conveyor belt 10, and a centering plate 106 is welded and installed on the telescopic end of the pushing cylinder 105.

[0055] When the plate moves on the conveyor roller 101 to above the lifting channel steel 102, the centering cylinder 104 is started, and the centering cylinder 104 drives the lifting channel steel 102 to rise, so that the wheel 103 on the lifting channel steel 102 abuts against the plate, and then the pushing cylinder 105 is started to push the centering plate 106. The centering plates 106 on both sides of the conveyor belt 10 are close to each other to push and adjust the plate, thereby adjusting the position of the plate and facilitating the leveling of the plate. The wheel 103 converts sliding friction into rolling friction to reduce the friction between the plate and the conveyor roller 101, reduce the scratches on the plate caused by friction when the plate is centered, and reduce the workload of the pushing cylinder 105.

[0056] The conveyor belt 10 is fixedly welded with mounting plates a on both sides close to the chassis 14, and a lifting block a1 is installed on the mounting plate a for lifting and lowering. An electric telescopic rod a2 is fixedly installed on the mounting plate a, and the telescopic end of the electric telescopic rod a2 is welded to the lifting block a1. An upper feed roller a3 is rotatably installed on the lifting block a1, and a lower feed roller a4 is also rotatably installed on the mounting plate a. The lower feed roller a4 is installed directly below the upper feed roller a3, and a feed motor a5 is provided on the mounting plate a. Guide rollers a6 are rotatably and vertically installed on the mounting plate a, and the spacing between the two sets of guide rollers a6 is slightly larger than the material width setting.

[0057] Start the electric telescopic rod a2, and the telescopic end of the electric telescopic rod a2 extends to drive the upper feeding roller a3 on the lifting block a1 to descend to an appropriate height, and then start the feeding motor a5, and the feeding motor a5 drives the lower feeding roller a4 to rotate. The rotation installation of the upper feeding roller a3 cooperates with the rotation of the lower feeding roller a4, thereby realizing the feeding of the plate. The distance between the two sets of guide rollers a6 is slightly larger than the material width setting, which can further limit the plate, thereby avoiding the plate from being leveled when it is not centered, and also avoiding the collision between the plate width exceeding the limit and the leveler, causing damage to the leveler.

[0058] The implementation principle of the roller leveling machine with adjustable upper and lower roller gaps in this embodiment is as follows:

[0059] When the thickness of the sheet is small, the first driving cylinder 51 is started, and the extension and retraction of the telescopic end of the first driving cylinder 51 drives the first driving block 52 to move horizontally. Since the surfaces where the first driving block 52 and the first adjusting block 53 contact each other are inclined surfaces, the horizontal movement of the first driving block 52 can drive the first adjusting block 53 to move up and down. When the first adjusting block 53 is lifted and down, the first mounting frame 54 on the first adjusting block 53 can be driven to lift and down, thereby realizing the overall lifting and retraction of the upper roller 21 on the first mounting frame 54. In combination with the inconsistent lengths of the telescopic ends of the lifting cylinders 12 on both sides of the movable beam 13, an angle can be formed between the upper roller box 2 and the lower roller box 3 according to the thickness of the thin sheet, thereby realizing the overall deflection of the upper roller 21, so that an angle is formed between the upper roller box 2 and the lower roller box 3. At this time, on the movement path of the thin sheet, the distance between the upper roller 21 and the lower roller 31 gradually increases, thereby leveling and rolling the sheet, gradually reducing the leveling and rolling pressure on the thin sheet, thereby reducing the impact of leveling and rolling on the performance of the thin sheet itself.

[0060] When the thickness of the plate is large, it is difficult to eliminate the internal stress of the plate and the energy consumption of leveling the thick plate is high, the second driving cylinder 61 is started, and the telescopic end of the second driving cylinder 61 is extended and retracted, driving the second driving block 62 to move horizontally. Since the surfaces where the second driving block 62 and the second adjusting block 63 contact each other are both inclined surfaces, the horizontal movement of the second driving block 62 can drive the second adjusting block 63 to move up and down. When the second adjusting block 63 is raised and lowered, it can drive the second mounting frame 64 on the second adjusting block 63 to move up and down, thereby realizing the lifting and lowering of the lower roller 31 on the second mounting frame 64. Since the second adjusting assembly 6 is provided with multiple groups corresponding to the number of lower rollers 31, it is possible to realize the individual lifting and lowering of a single lower roller 31, thereby realizing the adjustable wavy setting of multiple lower rollers 31, effectively eliminating deep residual stress. The wavy lower rollers 31 also disperse the leveling force to multiple contact points, thereby avoiding the high energy consumption mode of the traditional horizontal roller that requires synchronous pressure on the entire roller surface.

[0061] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words “first”, “second”, “third” and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as “a” or “an” and the like do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as “include” or “comprise” and the like mean that the elements or objects appearing before “include” or “comprises” cover the elements or objects listed after “include” or “comprises” and their equivalents, and do not exclude other elements or objects. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0062] The above are all optional embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A roller leveler with adjustable upper and lower roller gaps, characterized by: The utility model comprises a column (1), an upper roller box (2) and a lower roller box (3), a fixed beam (11) and a plurality of lifting cylinders (12) are arranged above the column (1), the fixed ends of the plurality of lifting cylinders (12) are rotatably arranged on the lower end surface of the fixed beam (11), a movable beam (13) is rotatably arranged on the output end of the lifting cylinder (12), a base (14) is arranged below the column (1), a locking member (15) for fixing the upper roller box (2) and the movable beam (13) is arranged on the movable beam (13), a stabilizing component (4) for stably connecting the lower roller box (3) and the base (14) is arranged on the base (14), the upper roller box (2 ) is provided with a plurality of groups of upper rollers (21), a first adjusting assembly (5) for synchronously lifting and lowering the plurality of upper rollers (21) is provided on the movable beam (13) and the upper roller box (2), a plurality of groups of lower rollers (31) are provided in the lower roller box (3), a second adjusting assembly (6) for independently lifting and lowering a single group of lower rollers (31) is provided on the lower roller box (3), a universal telescopic coupling (7) is connected to the same side ends of the plurality of groups of upper rollers (21) and the plurality of groups of lower rollers (31), and a driving motor (8) is provided on the universal telescopic coupling (7) for rotating the universal telescopic coupling (7) to drive the upper rollers (21) and the lower rollers (31); The first adjustment assembly (5) includes a plurality of first driving cylinders (51), a plurality of first driving blocks (52), a plurality of first adjustment blocks (53), a first mounting frame (54), a first assisting roller group (55), a first reset member (56), and a second reset member (57); The first mounting frame (54) is arranged on the upper roller box (2) and is in contact with a side of the first adjustment block (53) away from the first driving block (52); the plurality of upper rollers (21) are rotatably arranged on the first mounting frame (54); the plurality of first assisting roller groups (55) are provided; the plurality of first assisting roller groups (55) are rotatably arranged between the first mounting frame (54) and the upper roller (21) and are used to support the plurality of upper rollers (21); the second reset member (57) is arranged in the upper roller box (2) and is used to make the upper roller (21) contact with the first assisting roller group (55); The second adjustment assembly (6) is provided with a plurality of groups corresponding to the plurality of groups of lower rollers (31), and the second adjustment assembly (6) includes a second driving cylinder (61), a second driving block (62), a second adjustment block (63), a second mounting frame (64), a second assisting roller group (65) and a third reset member (66); The second mounting frame (64) is arranged on a side of the plurality of second adjustment blocks (63) away from the second driving block (62) and is located in the lower roller box (3); the lower roller (31) is rotatably arranged on the second mounting frame (64); the second assisting roller group (65) is rotatably arranged between the second mounting frame (64) and the lower roller (31) and is used to support the lower roller (31); and the third reset member (66) is arranged in the lower roller box (3) and is used to make the lower roller (31) abut against the second assisting roller group (65); A plurality of first driving cylinders (51) are fixedly arranged on the movable beam (13), a plurality of first driving blocks (52) are respectively fixedly arranged on the telescopic ends of the plurality of first driving cylinders (51), and the plurality of first driving blocks (52) are movably arranged in the movable beam (13), a plurality of first adjusting blocks (53) are all lifted and lowered in the movable beam (13), and are abutted against the bottom of the plurality of first driving blocks (52), and the surfaces where the first driving blocks (52) and the first adjusting blocks (53) contact each other are all inclined surfaces, and a first reset member (56) is arranged on the first adjusting block (53) for resetting the first adjusting block (53); The second driving cylinder (61) is fixedly arranged on the lower roller box (3), the second driving block (62) is fixedly arranged on the telescopic end of the second driving cylinder (61), and the second driving block (62) and the first driving block (52) are arranged perpendicular to each other in horizontal projection, the second adjusting block (63) is abutted and arranged above the second driving block (62), and is lifted and lowered in the lower roller box (3), and the surfaces where the second driving block (62) and the second adjusting block (63) contact each other are both inclined surfaces.

2. A roller leveler with adjustable upper and lower roller gaps according to claim 1, characterized in that: The stabilizing assembly (4) includes a lifting cylinder (41), a lifting block (42), and a roller (43). The roller (43) is arranged below the lower roller box (3). The lifting cylinder (41) is arranged on the side wall of the chassis (14), and the lifting block (42) is arranged on the telescopic end of the lifting cylinder (41). A card wheel hole (44) is opened above the chassis (14) corresponding to the lifting block (42). When the lower roller box (3) is used, the roller (43) is partially located in the card wheel hole (44).

3. A roller leveler with adjustable upper and lower roller gaps according to claim 2, characterized in that: A guide rail (9) is provided on the side of the chassis (14) away from the drive motor (8) corresponding to the roller (43), a pulling seat (91) is provided on the guide rail (9), the pulling seat (91) is fixedly connected to the lower roller box (3), a pulling chain (92) is provided below the pulling seat (91), sprockets (93) are rotatably provided on both sides of the guide rail (9), the pulling chain (92) is engaged with the sprocket (93), a pulling motor (94) is provided on the side of the guide rail (9) away from the drive motor (8), and an output shaft of the pulling motor (94) is connected to the sprocket (93) on the side of the guide rail (9) away from the drive motor (8).

4. A roller leveler with adjustable upper and lower roller gaps according to claim 1, characterized in that: A conveyor belt (10) is provided on one side of the chassis (14), and the conveyor belt (10) is used to transport the sheet material between the upper roller box (2) and the lower roller box (3). The conveyor belt (10) includes multiple groups of conveyor rollers (101), and the multiple groups of conveyor rollers (101) are arranged at intervals. A lifting channel steel (102) is provided between adjacent conveyor rollers (101) for lifting and lowering. A rotating wheel (103) is provided in the lifting channel steel (102), and the rotating direction of the rotating wheel (103) is perpendicular to the conveying direction of the material. A centering cylinder (104) is provided below the lifting channel steel (102), and the lifting channel steel (102) is provided on the telescopic end of the centering cylinder (104). Pushing cylinders (105) are symmetrically and horizontally provided on both sides of the conveyor belt (10), and a centering plate (106) is provided on the telescopic end of the pushing cylinder (105).

5. A roller leveler with adjustable upper and lower roller gaps according to claim 4, characterized in that: The conveyor belt (10) is provided with mounting plates (a) on both sides close to the chassis (14), a lifting block (a1) is provided on the mounting plate (a), an electric telescopic rod (a2) is provided on the mounting plate (a), the telescopic end of the electric telescopic rod (a2) is connected to the lifting block (a1), an upper feed roller (a3) ​​is rotatably provided on the lifting block (a1), a lower feed roller (a4) is also rotatably provided on the mounting plate (a), the lower feed roller (a4) is arranged directly below the upper feed roller (a3), and a feed motor (a5) for rotating the lower feed roller (a4) is provided on the mounting plate (a), a guide roller (a6) is rotatably and vertically provided on the mounting plate (a), and the spacing between the two sets of guide rollers (a6) is slightly larger than the material width setting.

6. A roller leveler with adjustable upper and lower roller gaps according to claim 1, characterized in that: The upper roller box (2) is provided with a plurality of air outlets for spraying high-speed airflow onto the surface of the material before the material is leveled.

Images