A device for straightening a sheet

Abstract

The utility model discloses a board leveling device belongs to board processing field, and upper roller lifting drive structure is installed on the top of frame, and lifting beam sliding is installed on the frame and is with upper roller lifting drive structure transmission connection, and upper roller lifting drive structure drives lifting beam to move vertically relative to frame, and the removal drive part of upper roller removal structure is fixed to lifting beam, and the output end of connecting block is installed on the removal drive part, and the upper leveling roller structure is along the horizontal direction sliding and is installed on lifting beam through connecting block, and lower roller lifting drive structure is installed on the frame and promotes lower leveling roller structure to move vertically relative to frame, and lower roller adjusting structure is located lower leveling roller structure bottom, and the support beam of lower roller adjusting structure is rotatably installed on the frame, and adjusting drive part is transmission connection with support beam, and adjusting drive part drives support beam to rotate and touches lower leveling roller structure, makes the input side of the straightening space formed by lower leveling roller structure and upper leveling roller structure less than the output side, lets board get greater deformation, and eliminates board wave.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing, and in particular to a sheet metal leveling device. Background Technology

[0002] Leveling machines are widely used in light industrial machinery, automobile manufacturing, steel and other industries. They are mainly used to correct defective sheet metal (such as wavy middle, wavy sides, twisted steel, and local unevenness) to ensure the flatness of the steel.

[0003] In existing leveling machines, the upper roller mechanism for the leveling roller is bolted to the upper crossbeam of the frame, and the lower roller mechanism is bolted to the lower crossbeam and pin. The lower crossbeam is connected to a lifting mechanism, allowing it to be raised and lowered. The lifting mechanism consists of a screw, worm gear, worm, electric push rod, synchronous shaft, and coupling, and is fixed to the frame and the lower crossbeam.

[0004] Because the original leveling roller upper roller mechanism and upper crossbeam were fixed with bolts, and the leveling roller lower roller mechanism and lower crossbeam were fixed with pins and bolts, and the lower roller mechanism and lower crossbeam were raised or lowered as a whole by screws, this structure restricted the space layout under the leveling roller. Therefore, the replacement of the upper and lower roller systems of this device could only be done manually, and it was impossible to set up a drive structure to adjust the tilt angle of the lower roller mechanism in the space under the leveling roller, which affected the leveling quality. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a plate leveling device that can improve the roller changing efficiency and the leveling quality.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A sheet metal leveling device includes a frame, an upper leveling roller structure, a lower leveling roller structure, an upper roller lifting drive structure, a lifting beam, an upper roller removal structure, a lower roller lifting drive structure, and a lower roller adjusting structure. The upper roller lifting drive structure is mounted on the top of the frame. The lifting beam is slidably mounted on the frame and is drively connected to the upper roller lifting drive structure. The upper roller lifting drive structure drives the lifting beam to move vertically relative to the frame. The upper roller removal structure includes a removal drive component and a connecting block. The removal drive component is fixed to the lifting beam, and the connecting block is mounted on the output end of the removal drive component. The leveling roller structure is slidably mounted on the lifting beam in the horizontal direction via the connecting block. The lower roller lifting drive structure is mounted on the frame and pushes the lower leveling roller structure to move vertically relative to the frame. The lower roller adjustment structure is located at the bottom of the lower leveling roller structure. The lower roller adjustment structure includes a support beam and an adjustment drive component. The support beam is rotatably mounted on the frame. The adjustment drive component is drively connected to the support beam. The adjustment drive component drives the support beam to rotate and abut against the lower leveling roller structure, so that the input side of the leveling space formed by the lower leveling roller structure and the upper leveling roller structure is smaller than the output side.

[0008] Furthermore, the plate leveling device has an input side and an output side along the plate conveying direction, and the other two sides of the plate leveling device are an operation side and a transmission side opposite to the operation side, respectively. The support beam extends from the operation side to the transmission side.

[0009] Furthermore, there are multiple lower roller adjustment structures, which are evenly spaced along the input side to the output side.

[0010] Furthermore, the lower roller adjustment structure also includes a rotating shaft, an eccentric structure, and a connecting rod. The support beam is rotatably mounted on the frame via the rotating shaft. The eccentric structure includes an eccentric shaft and a guide block. The eccentric shaft is rotatably mounted on the frame. The two ends of the connecting rod are respectively connected to the adjustment drive and the eccentric shaft. The guide block is slidably mounted on the support beam. The adjustment drive drives the eccentric shaft to rotate, thereby causing the guide block to slide relative to the support beam. The support beam rotates around the rotating shaft.

[0011] Furthermore, the lower leveling roller structure includes a lower roller frame, which includes an exit roller frame, a leveling frame, a support frame, a second elastic element, a bolt, and a third elastic element. The support frame and the exit roller frame are connected by the bolt. The two ends of the second elastic element abut against the bolt and the exit roller frame, respectively. The two ends of the third elastic element abut against the leveling frame and the machine frame, respectively.

[0012] Furthermore, the lower leveling roller structure includes a lower support roller, a lower intermediate roller, and a lower leveling roller. The lower support roller is mounted on the support frame, and the lower intermediate roller and the lower leveling roller are mounted on the leveling frame. The lower intermediate roller is located between the lower support roller and the lower leveling roller.

[0013] Furthermore, the lower support roller and the lower intermediate roller are arranged alternately, and the lower intermediate roller and the lower leveling roller are arranged alternately.

[0014] Furthermore, the upper calibration roller structure includes an upper calibration roller, and the lower calibration roller structure includes a lower calibration roller, with the upper calibration roller and the lower calibration roller being arranged alternately.

[0015] Furthermore, the upper roller lifting drive structure includes an upper roller lifting drive component, a transmission assembly, and a synchronous shaft. The upper roller lifting drive component is fixed to the top of the frame. There are multiple transmission assemblies. The two ends of the synchronous shaft are respectively connected to two of the transmission assemblies, and the two transmission assemblies are respectively connected to both sides of the lifting beam.

[0016] Furthermore, the lower roller lifting drive structure includes a lower roller lifting drive component and a moving rail. The lower roller lifting drive component is a hydraulic cylinder. The moving rail is slidably installed on the frame and is located below the lower leveling roller structure. The lower roller lifting drive component drives the moving rail to move vertically and abut against the lower leveling roller structure, causing the lower leveling roller structure to extend.

[0017] Compared with existing technologies, the plate leveling device of this utility model has the following advantages:

[0018] (1) The upper roller lifting drive structure is installed on the top of the frame, and the lifting beam is slidably installed on the frame and connected to the upper roller lifting drive structure. The upper roller lifting drive structure drives the lifting beam to move vertically relative to the frame, so that there is space under the frame to install the lower roller adjustment structure.

[0019] (2) The upper roller removal structure includes a removal drive and a connecting block. The removal drive is fixed to the lifting beam, and the connecting block is installed at the output end of the removal drive. The upper leveling roller structure is slidably installed on the lifting beam in the horizontal direction through the connecting block, making it convenient to operate the plate leveling device when changing rollers.

[0020] (3) The lower roller adjustment structure is located at the bottom of the lower leveling roller structure. The lower roller adjustment structure includes a support beam and an adjustment drive. The support beam is rotatably mounted on the frame. The adjustment drive is connected to the support beam in a transmission manner. The adjustment drive drives the support beam to rotate and abut against the lower leveling roller structure, so that the input side of the leveling space formed by the lower leveling roller structure and the upper leveling roller structure is smaller than the output side, thereby eliminating the waves in the middle of the board, the waves on both sides, and the bent board.

[0021] (4) The lower leveling roller structure includes a lower support roller, a lower intermediate roller, and a lower leveling roller. The lower support roller is installed on the support frame, and the lower intermediate roller and the lower leveling roller are installed on the leveling frame. The lower intermediate roller is located between the lower support roller and the lower leveling roller. The lower support roller prevents the lower leveling roller from being too long and lacking rigidity, and maintains the rigidity of the lower leveling roller. The second lower intermediate roller prevents the lower leveling roller from being pressed into by the lower support roller during long-term operation. In addition, the lower intermediate roller has a spiral oil sludge groove to facilitate the discharge of oil sludge from the working roller. The third lower leveling roller is used for straightening the strip and eliminates the stress of the strip to the greatest extent, so that the stress distribution is uniform. Attached Figure Description

[0022] Figure 1 This is the front view of the plate leveling device of this utility model;

[0023] Figure 2 for Figure 1 A three-dimensional view of the frame of the sheet metal leveling device;

[0024] Figure 3 for Figure 1 A top view of the lifting drive structure of the upper leveling roller in the plate leveling device;

[0025] Figure 4 for Figure 1 A sectional view of the sheet metal leveling device from the front view direction;

[0026] Figure 5 for Figure 4 Enlarged view of section A of the plate leveling device;

[0027] Figure 6 for Figure 4 Enlarged view of section B of the plate leveling device;

[0028] Figure 7 for Figure 1 A sectional view of the sheet metal leveling device from the side;

[0029] Figure 8 for Figure 1 A schematic diagram of the lower leveling roller adjustment structure of the sheet metal leveling device.

[0030] In the diagram: 10. Frame; 11. Base; 12. Column; 120. Guide rail pressure plate; 13. Top beam; 130. Beam body; 131. Crossbeam; 14. Input side; 15. Output side; 16. Operation side; 17. Transmission side; 20. Upper roller lifting drive structure; 21. Upper roller lifting drive component; 22. Transmission assembly; 220. Worm gear; 221. Coupling; 222. Turbine; 223. Screw; 224. Locking pin; 225. Connecting seat; 23. Synchronization Shaft; 30, Lifting beam; 31, Beam body; 32, Limiting assembly; 320, Limiting seat; 321, Limiting block; 33, First positioning pin; 40, Mounting structure; 41, Mounting pin; 42, Fixed seat; 43, Guide rod; 44, First elastic element; 45, Pressure plate; 50, Upper roller removal structure; 51, Removal drive element; 52, Connecting block; 60, Upper leveling roller structure; 61, Upper roller frame; 610, Slide groove; 611, First positioning hole; 62, Upper support 63. Upper intermediate roller; 64. Upper leveling roller; 70. Lower leveling roller structure; 71. Lower roller frame; 710. Roller exit frame; 7101. Second positioning hole; 711. Leveling frame; 712. Support frame; 713. Second elastic element; 714. Bolt; 715. Third elastic element; 72. Lower support roller; 73. Lower intermediate roller; 74. Lower leveling roller; 75. Roller bearing; 80. Lower roller lifting drive structure; 81. Lower roller lifting drive component; 82. Connecting assembly Components; 820, Connecting seat; 821, Connecting end; 822, Connecting shaft; 83, Moving rail; 90, Lower roller adjusting structure; 91, Support beam; 92, Rotating shaft; 93, Mounting assembly; 930, Mounting sleeve; 931, Seat body; 94, Eccentric structure; 940, Mounting part; 941, Eccentric shaft; 942, Guide rail block; 95, Connecting rod; 96, Adjusting drive component; 100, Lower roller frame; 101, Main body; 102, Second positioning pin; 103, Clamping plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please see Figure 1 The plate leveling device includes a frame 10, an upper roller lifting drive structure 20, a lifting beam 30, an installation structure 40, an upper roller removal structure 50, an upper leveling roller structure 60, a lower leveling roller structure 70, a lower roller lifting drive structure 80, a lower roller adjustment structure 90, and a lower exit roller frame 100.

[0035] Please see Figure 2 The frame 10 is used to install the upper roller lifting drive structure 20, the lifting beam 30, the mounting structure 40, the upper roller removal structure 50, the upper leveling roller structure 60, the lower leveling roller structure 70, the lower roller lifting drive structure 80, the lower roller adjusting structure 90, and the lower roller exit frame 100. Specifically, the frame 10 includes a base 11, a column 12, and a top beam 13. The column 12 is fixed to the base 11 and perpendicular to the base 11. The top beam 13 is fixed to the top of the column 12. The base 11, the column 12, and the top beam 13 are positioned by connecting keys, which improves the positional accuracy of the frame 10 during installation and reduces vibration and imbalance. The column 12 is provided with a guide rail pressure plate 120, allowing the lifting beam 30 to be slidably installed on the column 12. The top beam 13 includes a beam body 130 and a crossbeam 131. The crossbeam 131 is fixed inside the beam body 130 and is used to install the guide rod 43. The frame 10 has an input side 14 and an output side 15 along the material conveying direction, and an operation side 16 and a transmission side 17 on the other two sides.

[0036] Please see Figure 3 as well as Figure 4The upper roller lifting drive structure 20 is installed on the top beam 13 of the frame 10. The upper roller lifting drive structure 20 is used to drive the upper leveling roller structure 60 to rise and fall via the lifting beam 30. Specifically, the upper roller lifting drive structure 20 includes an upper roller lifting drive component 21, a transmission assembly 22, and a synchronous shaft 23. The upper roller lifting drive component 21 is a motor, and the transmission assembly 22 is used to transmit the power of the upper roller lifting drive component 21 to the lifting beam 30. The upper roller lifting drive component 21 is fixed to the beam 130. The transmission assembly 22 includes a worm gear 220, a coupling 221, a worm 222, a screw 223, a locking pin 224, and a connecting seat 225. The worm gear 220 is installed at the output end of the upper roller lifting drive component 21 and is connected to the synchronous shaft 23 via the coupling 221 to drive another transmission assembly 22, enabling the two transmission assemblies 22 to drive synchronously. The turbine 222 meshes with the worm gear 220, the screw 223 is connected to the turbine 222, and the end of the screw 223 is connected to the connecting seat 225 through the locking pin 224. The connecting seat 225 is fixed to the lifting beam 30.

[0037] Please continue reading. Figure 4 as well as Figure 7 The lifting beam 30 includes a beam body 31, a limiting component 32, and a first positioning pin 33. The limiting component 32 is fixed to both sides of the beam body 31. The limiting component 32 includes a limiting seat 320 and a limiting block 321. The limiting block 321 is installed in the limiting seat 320 and is located in the guide rail pressure plate 120 to prevent the lifting beam 30 and the guide rod 43 from deviating except for rising and falling, thereby ensuring synchronous lifting. Specifically, the limiting block 321 is a semi-circular block. The first positioning pin 33 is fixed to the bottom of the beam body 31 and is used to position the upper alignment roller structure 60 when it moves close to the lifting beam 30.

[0038] The mounting structure 40 includes a mounting pin 41, a fixed seat 42, a guide rod 43, a first elastic element 44, and a pressure plate 45. The fixed seat 42 is fixed to the top of the beam 31 by the mounting pin 41. The guide rod 43 is fixed to the fixed seat 42 and is arranged vertically. The guide rod 43 passes through the crossbeam 131 and the pressure plate 45 is fixed to the top of the guide rod 43. The first elastic element 44 is sleeved on the guide rod 43 and its two ends abut against the pressure plate 45 and the crossbeam 131, respectively, to balance the lifting beam 30 and eliminate the gap of the upper roller lifting drive structure 20.

[0039] The upper roller removal structure 50 includes a removal drive 51 and a connecting block 52 installed at the output end of the removal drive 51. The removal drive 51 is fixed to the lifting beam 30, and the connecting block 52 is installed in the groove 610 of the upper leveling roller structure 60, so that the upper leveling roller structure 60 is slidably installed on the lifting beam 30. Specifically, in this embodiment, the connecting block 52 is T-shaped.

[0040] The upper leveling roller structure 60 is slidably installed on the upper roller removal structure 50 for easy replacement. The upper leveling roller structure 60 is used for leveling the sheet material. The upper leveling roller structure 60 is a multi-roller system structure to improve the leveling effect. Specifically, in this application, the upper leveling roller structure 60 is a triple-roller system structure, including an upper roller frame 61, an upper support roller 62, an upper intermediate roller 63, and an upper leveling roller 64. The upper support roller 62, upper intermediate roller 63, and upper leveling roller 64 are installed on the upper roller frame 61. The top of the upper roller frame 61 is provided with a sliding groove 610, which extends from the operating side 16 to the transmission side 17. The sliding groove 610 is used for sliding connection between the upper roller frame 61 and the lifting beam 30. The upper roller frame 61 is also provided with a first positioning hole 611, which is used to cooperate with a first positioning pin 33 to position the upper leveling roller structure 60 when it approaches the lifting beam 30. The upper support roller 62 is fixed to the upper roller frame 61 by a pin and serves as the first roller system. The upper leveling roller 64 is connected to the upper roller frames 61 on both sides by needle roller bearings and serves as the third roller system. The upper intermediate roller 63 is a floating roller system installed between the upper support roller 62 and the upper leveling roller 64 and serves as the second roller system.

[0041] Please continue reading. Figure 4 , Figure 5 as well as Figure 7 The lower leveling roller structure 70 is rotatably mounted on the lower output roller frame 100 for easy replacement. The lower leveling roller structure 70 is used to level the sheet material. The lower leveling roller structure 70 has a multi-roller system to improve the leveling effect.

[0042] Specifically, in this application, the lower leveling roller structure 70 is a triple roller system structure, which includes a lower roller frame 71, a lower support roller 72, a lower intermediate roller 73, a lower leveling roller 74, and a roller bearing 75.

[0043] The lower roller frame 71 includes an exit roller frame 710, a leveling frame 711, a support frame 712, a second elastic element 713, a bolt 714, and a third elastic element 715. The exit roller frame 710 is fixedly connected to the leveling frame 711, and the support frame 712 is elastically connected to the exit roller frame 710 via the second elastic element 713 and the bolt 714. The bolt 714 passes through the exit roller frame 710 and is fixed to the support frame 712. The second elastic element 713 is sleeved on the bolt 714, and both ends of the second elastic element 713 abut against the bolt 714 and the exit roller frame 710, respectively. Both ends of the third elastic element 715 abut against the leveling frame 711 and the frame 10, respectively. In this embodiment, the third elastic element 715 is a disc spring. The third elastic element 715 and the second elastic element 713 are used to balance the drive of the lower roller adjustment structure 90, allowing the lower leveling roller 74 near the input side of the support frame 712 to be finely adjusted upwards, resulting in a more precise leveling height.

[0044] The lower support roller 72 is fixed to the support frame 712 by a pin as the first roller system. The lower leveling roller 74 is connected to the two leveling frames 711 by needle roller bearings as the third roller system. The lower intermediate roller 73 is a floating roller system installed between the lower support roller 72 and the lower leveling roller 74 as the second roller system. There are multiple lower support rollers 72, lower intermediate rollers 73, and lower leveling rollers 74, which are arranged alternately in the vertical direction. From the input side 14 to the output side 15, multiple lower leveling rollers 74 and multiple upper leveling rollers 64 are alternately arranged to achieve repeated bending and straightening. The lower support roller 72 prevents the lower leveling roller 74 from becoming too long and lacking sufficient rigidity, and maintains the rigidity of the lower leveling roller 74. The second lower intermediate roller 73 prevents the lower leveling roller 74 from being pressed into by the lower support roller 72 during long-term operation. In addition, the lower intermediate roller 73 has a spiral oil sludge groove to facilitate the discharge of oil sludge from the working roller. The third lower leveling roller is used for straightening the strip, eliminating the stress of the strip to the greatest extent and making the stress distribution uniform. The roller bearings 75 are evenly distributed at the bottom of the lower roller frame 71, extending from the input side 14 to the output side 15. The roller bearings 75 allow the lower leveling roller structure 70 to be rolled on the lower output roller frame 100.

[0045] Please continue reading. Figure 6 as well as Figure 7 The lower roller lifting drive structure 80 is used to drive the lower leveling roller structure 70 to extend and retract vertically. The lower roller lifting drive structure 80 includes a lower roller lifting drive component 81, a connecting assembly 82, and a moving rail 83. The lower roller lifting drive component 81 is a hydraulic cylinder. The connecting assembly 82 includes a connecting seat 820, a connecting end 821, and a connecting shaft 822. The connecting end 821 is the output end of the hydraulic cylinder. The connecting seat 820 is located at one end of the moving rail 83. The connecting shaft 822 passes through the connecting end 821 and the connecting seat 820. When the lower roller lifting drive component 81 is working, it drives the moving rail 83 to move upward and abut against the lower roller frame 71, causing the lower leveling roller structure 70 to move upward. The second positioning hole 7101 separates from the second positioning pin 102, facilitating the rolling of the lower leveling roller structure 70 relative to the lower roller frame 100 for roller changing.

[0046] Please continue reading. Figures 6 to 8The lower roller adjustment structure 90 is used to adjust the input side position of the lower leveling roller structure 70. Multiple lower roller adjustment structures 90 are located below the lower leveling roller structure 70 and are spaced apart from the input side 14 to the output side 15. Each lower roller adjustment structure 90 includes a support beam 91, a rotating shaft 92, a mounting assembly 93, an eccentric structure 94, a connecting rod 95, and an adjustment drive component 96. The support beam 91 extends from the operating side 16 to the transmission side 17. The end of the support beam 91 is rotatably mounted to the frame 10 via the rotating shaft 92. The mounting assembly 93 includes a mounting sleeve 930 and a base 931. The base 931 is fixed to the frame 10, and the mounting sleeve 930 is fitted onto the rotating shaft 92, which is rotatably mounted to the base 931. The eccentric structure 94 includes a mounting part 940, an eccentric shaft 941, and a guide block 942. The guide block 942 is slidably mounted on the support beam 91. The eccentric shaft 941 is located inside the guide block 942 and is rotatably mounted on the mounting part 940. One end of the connecting rod 95 is connected to the adjusting drive component 96, and the other end is fixedly connected to the eccentric shaft 941. In this embodiment, the adjusting drive component 96 is an electric push rod.

[0047] The lower roller frame 100 includes a main body 101, a second positioning pin 102 and a clamping plate 103. The second positioning pin 102 is fixed to the top of the main body 101, and the clamping plate 103 is located on the side of the main body 101 and is used to position the lower roller frame 100 with the frame 10.

[0048] When using the plate leveling device, the lower roller lifting drive 81 retracts, and the lower roller frame 71 descends synchronously with the moving rail 83. The second positioning pin 102 is positioned and fixed with the second positioning hole 7101 of the lower roller frame 71. The lower roller frame 71 is in complete contact with the lower exit roller frame 100, and the lower leveling roller 74 is completely horizontal at this time, and the upper leveling roller 64 is adjusted based on this. The removal drive 51 of the upper roller removal structure 50 retracts, and the upper leveling roller structure 60 is driven upward by the connecting block 52. The top of the upper roller frame 61 is raised until it is completely aligned with the bottom of the lifting beam 30, and the first positioning pin 33 at the bottom of the lifting beam 30 is positioned and fixed with the first positioning hole 611 at the top of the upper roller frame 61. The upper leveling roller structure 60 is now completely fixed with the lifting beam 30, and then the upper roller lifting drive structure 20 drives the upper leveling roller structure 60 to move upward or downward. The upper leveling roller 64 is ultimately adjusted to form a leveling space by referencing the lower leveling roller 74. The upper leveling roller 64 and the lower leveling roller 74 are staggered to reduce the empty straightening area.

[0049] The lower roller adjustment structure 90 can finely adjust the leveling roller system. Driven by the adjustment drive 96, the connecting rod 95 slides within the support beam 91 under the action of the eccentric shaft 941. When the adjustment drive 96 moves downwards, the eccentric shaft 941 rotates around the mounting portion 940, with the eccentric side moving upwards, causing the support beam 91 to rotate around the rotating shaft 92, shifting vertically upwards towards the side closest to the connecting rod 95. The lower roller frame 100 and the lower roller frame 71 are in complete contact during operation. Therefore, the support beam 91 drives the input side of the support frame 712 to move upwards. The third elastic element 715 and the second elastic element 713 balance the drive of the lower roller adjustment structure 90, allowing the lower leveling roller 74 near the input side of the support frame 712 to be finely adjusted upwards, resulting in more precise leveling height. Similarly, when the adjustment drive 96 moves upwards, the eccentric shaft 941 rotates around the mounting portion 940, with the eccentric side moving downwards, causing the support beam 91 to move vertically downwards. The roll exit frame 710 and the leveling frame 711 are reset by the elastic force of the third elastic element 715 and the second elastic element 713.

[0050] In the output state, because the distance between the upper and lower leveling roller structures 60 and 70 is small during operation, the upper leveling roller structure 60 is preferentially raised to a certain height under the drive of the upper roller lifting drive structure 20 to facilitate the lifting of the lower leveling roller structure 70. At this time, the lower roller lifting drive component 81 of the lower roller lifting drive structure 80 is raised synchronously, and the entire lower leveling roller structure 70 is lifted along with the moving rail 83. When it is lifted to a certain height, the second positioning hole 7101 of the lower leveling roller structure 70 is completely disengaged from the second positioning pin 102 of the lower output roller frame 100, and the clamping plates 103 on the operating side 16 and the transmission side 17 are in full contact with the frame 10 to ensure the horizontality of the guide rail direction. The lower leveling roller structure 70 can then move in the operating side 16 and the transmission side 17 directions. The upper collapsible roller structure 60 is extended by the upper roller lifting drive component 21 in the upper roller lifting drive structure 20. As the cylinder extends, the upper collapsible roller structure 60 disengages from the lifting beam 30, and the first positioning hole 611 of the upper collapsible roller structure 60 is completely separated from the first positioning pin 33 of the lifting beam 30. The upper collapsible roller structure 60 descends as a whole as the cylinder extends, and when it reaches a certain height, the slot of the upper roller frame 61 falls into the lower roller frame 71, fixing the upper collapsible roller structure 60. Finally, the roller changing mechanism connects the lower collapsible roller structure 70 and the upper collapsible roller structure 60, and moves out from the guide rail from the transmission side 17 to the operation side 16. A new set of rollers enters from the operation side 16 to the transmission side 17. The removal drive component 51 extends with the connecting block 52, and the connecting block 52 enters the slot of the upper roller frame 61 for initial positioning. As the new roller system fully enters the frame 10, the upper roller lifting drive 21 retracts, and the upper roller frame 61 and lifting beam 30 in the new upper leveling roller system mechanism are fixed in place by the first positioning pin 33. The lower roller lifting drive 81 retracts, and the new lower leveling roller system mechanism descends synchronously with the moving rail 83. The second positioning hole 7101 of the lower leveling roller structure 70 is fixed in place with the second positioning pin 102 of the lower exit roller frame 100, thus ending the automatic roller changing process.

[0051] The upper roller lifting drive structure 20 is installed on the top of the frame 10. The lifting beam 30 is slidably installed on the frame 10 and is connected to the upper roller lifting drive structure 20. The upper roller lifting drive structure 20 drives the lifting beam 30 to move vertically relative to the frame 10, creating space below the frame 10 for the installation of the lower roller adjustment structure 90. The upper roller removal structure 50 includes a removal drive component 51 and a connecting block 52. The removal drive component 51 is fixed to the lifting beam 30, and the connecting block 52 is installed at the output end of the removal drive component 51. The upper leveling roller 64 structure 60 is slidably installed on the lifting beam 30 in the horizontal direction via the connecting block 52, making it convenient to change rollers in the plate leveling device. The lower roller adjustment structure 90 is located at the bottom of the lower leveling roller 74 structure 70. The lower roller adjustment structure 90 includes a support beam 91 and an adjustment drive component 96. The support beam 91 is rotatably installed on the frame 10, and the adjustment drive component 96 is connected to the support beam 91. The adjustment drive component 96 drives the support beam 91 to rotate and abut against the lower leveling roller 74 structure. Structure 70, such that the input side 14 of the leveling space formed by the lower leveling roller 74 structure 70 and the upper leveling roller 64 structure 60 is smaller than the output side 15, eliminates the wavy center, wavy edges, and bent boards of the board; the lower leveling roller 74 structure 70 includes a lower support roller 72, a lower intermediate roller 73, and a lower leveling roller 74, the lower support roller 72 is mounted on the support frame 712, and the lower intermediate roller 73 and the lower leveling roller 74 are mounted on the leveling frame 711, the lower intermediate roller 73 being located at the... Between the lower support roller 72 and the lower leveling roller 74, the lower support roller 72 prevents the lower leveling roller 74 from being too long and lacking rigidity, and maintains the rigidity of the lower leveling roller 74; the second lower intermediate roller 73 prevents the lower leveling roller 74 from being pressed into by the lower support roller 72 during long-term operation, and the lower intermediate roller 73 is equipped with a spiral oil sludge groove to facilitate the discharge of oil sludge from the working roller; the third lower leveling roller 74 is used for straightening the strip, eliminating the stress of the strip to the greatest extent and making the stress distribution uniform.

[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A sheet metal leveling device, comprising a frame, an upper leveling roller structure, and a lower leveling roller structure, characterized in that: The plate leveling device further includes an upper roller lifting drive structure, a lifting beam, an upper roller removal structure, a lower roller lifting drive structure, and a lower roller adjustment structure. The upper roller lifting drive structure is installed on the top of the frame. The lifting beam is slidably installed on the frame and is connected to the upper roller lifting drive structure. The upper roller lifting drive structure drives the lifting beam to move vertically relative to the frame. The upper roller removal structure includes a removal drive component and a connecting block. The removal drive component is fixed to the lifting beam, and the connecting block is installed at the output end of the removal drive component. The upper leveling roller structure is connected to the lower roller adjustment structure. The connecting block is slidably installed on the lifting beam in the horizontal direction. The lower roller lifting drive structure is installed on the frame and pushes the lower leveling roller structure to move vertically relative to the frame. The lower roller adjustment structure is located at the bottom of the lower leveling roller structure. The lower roller adjustment structure includes a support beam and an adjustment drive component. The support beam is rotatably installed on the frame. The adjustment drive component is connected to the support beam in a transmission manner. The adjustment drive component drives the support beam to rotate and abut against the lower leveling roller structure, so that the input side of the leveling space formed by the lower leveling roller structure and the upper leveling roller structure is smaller than the output side.

2. The plate leveling device according to claim 1, characterized in that: The plate leveling device has an input side and an output side along the plate conveying direction, and the other two sides of the plate leveling device are an operation side and a transmission side opposite to the operation side, respectively. The support beam extends from the operation side to the transmission side.

3. The plate leveling device according to claim 2, characterized in that: The number of the lower roller adjustment structures is multiple, and the multiple lower roller adjustment structures are evenly spaced along the input side to the output side.

4. The plate leveling device according to claim 1, characterized in that: The lower roller adjustment structure also includes a rotating shaft, an eccentric structure, and a connecting rod. The support beam is rotatably mounted on the frame via the rotating shaft. The eccentric structure includes an eccentric shaft and a guide block. The eccentric shaft is rotatably mounted on the frame. The two ends of the connecting rod are respectively connected to the adjustment drive and the eccentric shaft. The guide block is slidably mounted on the support beam. The adjustment drive drives the eccentric shaft to rotate, thereby causing the guide block to slide relative to the support beam. The support beam rotates around the rotating shaft.

5. The plate leveling device according to claim 4, characterized in that: The lower leveling roller structure includes a lower roller frame, which includes an exit roller frame, a leveling frame, a support frame, a second elastic element, a bolt, and a third elastic element. The support frame and the exit roller frame are connected by the bolt. The two ends of the second elastic element abut against the bolt and the exit roller frame, respectively. The two ends of the third elastic element abut against the leveling frame and the machine frame, respectively.

6. The plate leveling device according to claim 5, characterized in that: The lower leveling roller structure includes a lower support roller, a lower intermediate roller, and a lower leveling roller. The lower support roller is installed on the support frame, and the lower intermediate roller and the lower leveling roller are installed on the leveling frame. The lower intermediate roller is located between the lower support roller and the lower leveling roller.

7. The plate leveling device according to claim 6, characterized in that: The lower support roller and the lower intermediate roller are arranged alternately, and the lower intermediate roller and the lower leveling roller are arranged alternately.

8. The plate leveling device according to claim 1, characterized in that: The upper calibration roller structure includes an upper calibration roller, and the lower calibration roller structure includes a lower calibration roller. The upper calibration roller and the lower calibration roller are arranged alternately.

9. The plate leveling device according to claim 1, characterized in that: The upper roller lifting drive structure includes an upper roller lifting drive component, a transmission assembly, and a synchronous shaft. The upper roller lifting drive component is fixed to the top of the frame. There are multiple transmission assemblies. The two ends of the synchronous shaft are respectively connected to two of the transmission assemblies, and the two transmission assemblies are respectively connected to both sides of the lifting beam.

10. The plate leveling device according to claim 1, characterized in that: The lower roller lifting drive structure includes a lower roller lifting drive component and a moving rail. The lower roller lifting drive component is a hydraulic cylinder. The moving rail is slidably installed on the frame and is located below the lower leveling roller structure. The lower roller lifting drive component drives the moving rail to move vertically and abut against the lower leveling roller structure, causing the lower leveling roller structure to extend.

Images