Double-curved-surface aluminum plate arc rolling and flattening device suitable for different radians
By adjusting the roller spacing and quickly replacing the rollers, the problem that traditional devices cannot adapt to the curvature of hyperbolic aluminum plates is solved, and efficient and uniform flattening of aluminum plates is achieved, thereby improving the quality of finished products and production efficiency.
Patent Information
- Application Number
- CN202511027867.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-09-26
AI Technical Summary
The traditional arc rolling and flattening device has a fixed roller arc, which cannot adapt to the variable arc requirements of hyperbolic aluminum plates, resulting in uneven processing and unstable finished product qualification rate.
By adjusting the distance between the lower roller and the upper roller and utilizing the adjustment structure of the lead screw and the connecting block, it can adapt to hyperbolic aluminum plates of different thicknesses and curvatures, and quickly replace rollers of different curvatures to achieve adaptive flattening of the aluminum plates.
The rolling efficiency and surface quality of hyperbolic aluminum plates have been significantly improved, production costs have been reduced, and the qualified rate of finished products has been increased.
Smart Images
Figure CN120696264A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of aluminum plate arc rolling and flattening devices, and in particular to an arc rolling and flattening device suitable for hyperbolic aluminum plates with different radians. Background Art
[0002] Hyperbolic aluminum sheets are widely used in architectural decoration, aerospace, automobile manufacturing and other fields due to their unique shape and lightweight properties. During the processing of hyperbolic aluminum sheets, due to the influence of stamping, bending and other processes, local bulges or curvature deviations often appear on the surface of the aluminum sheets, which need to be corrected by arc rolling and flattening devices.
[0003] However, the conventional arc rolling and flattening device under the existing technology has a fixed roller curvature, which cannot adapt to the variable curvature requirements of the hyperbolic aluminum plate; the curvature of the hyperbolic aluminum plate is usually customized according to the design requirements, while the roller curvature of the conventional device is single, and during processing, it is easy to cause uneven flattening due to curvature mismatch, and problems such as indentation or incomplete correction on the surface.
[0004] In scenarios such as building curtain wall construction and aerospace parts manufacturing, the curvature and thickness of hyperbolic aluminum plates vary greatly. Traditional equipment cannot quickly adapt to the processing needs of aluminum plates of different specifications, resulting in low production efficiency and unstable finished product qualification rate, which has become a technical bottleneck restricting the high-quality development of related industries.
[0005] Therefore, in response to the above problems, a rolling and flattening device suitable for hyperbolic aluminum plates with different curvatures is proposed. By adjusting the distance between the lower roller and the upper roller, it can adapt to hyperbolic aluminum plates with different thicknesses and curvatures; by quickly disassembling and installing the second rotating shaft of the lower roller, rollers with different curvatures can be quickly replaced to meet diversified processing needs; the overall structure of the device is compact and the adjustment operation is simple, which significantly improves the flattening efficiency and surface quality of the hyperbolic aluminum plates and reduces production costs. Summary of the Invention
[0006] In order to overcome the problem that the curvature of the roller is fixed and cannot adapt to the variable curvature requirements of the hyperbolic aluminum plate during the daily use of the traditional aluminum plate rolling and flattening device.
[0007] The technical solution of the present invention is: a rolling and flattening device for hyperbolic aluminum plates with different curvatures, comprising a main bracket, an upper bracket is provided on one side of the main bracket, a lower bracket is provided on one side of the main bracket, the upper bracket and the lower bracket are coaxially aligned, an upper support is provided below the upper bracket, an upper roller is provided on the inner side of the upper support, an operating component is provided on the inner side of the lower bracket, the operating component comprises a fixed threaded seat, a lead screw, a handwheel, a connecting block, a connecting pipe, a lower support, a mounting frame and a lower roller, a fixed threaded seat is provided on the inner side of the lower bracket, the inner side thread of the fixed threaded seat is connected to the lead screw, a handwheel is provided at the lower end of the lead screw, one end of the lead screw is rotatably connected to the connecting block, a connecting block is provided above the connecting block, the inner flat key of the connecting pipe is connected to the lower support, the upper end of the lower support is provided with a mounting frame, and the inner side of the mounting frame is provided with a lower roller.
[0008] Preferably, the screw is driven to rotate by rotating the hand wheel, and the screw and the connecting block are driven to move up and down by the rotation of the screw, and the height of the connecting tube and the lower support is adjusted by the up and down movement of the screw and the connecting block, thereby adjusting the height position of the mounting frame and the lower roller, and the aluminum plate workpiece to be flattened is placed between the upper roller and the lower roller, and the spacing between the upper roller and the lower roller is adjusted to adapt to hyperbolic aluminum plates of different curvatures and thicknesses, and the aluminum plate workpiece is placed between the upper roller and the lower roller, and the aluminum plate is pulled back and forth along the rotating cross-section direction of the upper roller and the lower roller, and friction is generated between the aluminum plate and the rollers, so that the raised parts of the aluminum plate surface caused by processing are flattened; the device can adapt to hyperbolic aluminum plates of different curvatures through an adaptive adjustment structure, and can roll and flatten aluminum plates of different models and sizes.
[0009] Preferably, a first rotating shaft is provided on the inner side of the upper support, a first bearing is provided on the outer side of the first rotating shaft, and the first bearing is located in the groove position on the inner side of the upper roller.
[0010] Preferably, a card slot is provided above the mounting frame, and the card slot is a U-shaped structure with an upper opening.
[0011] Preferably, a second rotating shaft is provided on the inner side of the slot, a second bearing is provided on the outer side of the second rotating shaft, and the second bearing is located in the groove position on the inner side of the lower roller.
[0012] Preferably, a threaded viewing hole is provided on the inner side of the connecting block, and a connecting groove is provided on the side of the lower bracket.
[0013] Preferably, a plurality of groups of legs are provided on the outer side of the main support, and a mold-presenting sheet metal frame is provided on one side of a group of legs.
[0014] Preferably, a plurality of groups of presentation slots are provided on the side of the mold presentation sheet metal frame, and the plurality of groups of presentation slots are arranged in a linear array.
[0015] Preferably, a plurality of sets of spare rollers are provided on the inner side of the sheet metal frame of the mold, and a third rotating shaft is provided on the inner side of the spare rollers.
[0016] Preferably, a mounting plate is provided at one end of the supporting leg, and a mounting hole is provided on the inner side of the mounting plate.
[0017] Preferably, the hyperbolic aluminum plate arc rolling and flattening device, when in use, comprises the following steps: S1: Connect the legs to the main bracket through the mounting holes of the mounting plate, ensuring that the main bracket is placed horizontally; place the spare roller in the presentation slot of the mold presentation sheet metal frame through the third rotating shaft; S2: Turn the handwheel to drive the screw to rotate in the fixed threaded seat, driving the connecting block and the connecting pipe to move up and down along the axis of the screw, and adjust the height of the lower support so that the distance between the lower roller and the upper roller can adapt to the thickness and curvature of the aluminum plate to be processed; S3: Place the hyperbolic aluminum plate workpiece between the upper roller and the lower roller to ensure that the curved surface of the aluminum plate contacts the rollers; S4: Pull the aluminum plate back and forth along the rotating cross-section direction of the upper and lower rollers, and use the friction between the rollers and the aluminum plate to flatten the raised parts of the surface; S5: Check the surface flatness of the aluminum plate after rolling. If further adjustment is needed, repeat steps S2-S4 until the requirements are met. S6: If you need to replace a roller of a different specification, remove the second shaft from the slot, remove the lower roller, and select a spare roller from the mold sheet metal rack for installation; S7: Turn off the equipment, clean the aluminum chips remaining on the surface of the roller, and return the spare roller to the mold presentation sheet metal rack.
[0018] Beneficial effects of the present invention: The screw is driven to rotate by turning the handwheel, and the screw and the connecting block are driven to move up and down by the screw rotation. The height of the connecting tube and the lower support is adjusted by the up and down movement of the screw and the connecting block, thereby adjusting the height position of the mounting frame and the lower roller. The aluminum plate workpiece to be flattened is placed between the upper roller and the lower roller. The spacing between the upper roller and the lower roller is adjusted to adapt to hyperbolic aluminum plates of different curvatures and thicknesses. The aluminum plate workpiece is placed between the upper roller and the lower roller, and the aluminum plate is pulled back and forth along the rotating cross-section direction of the upper roller and the lower roller. Friction is generated between the aluminum plate and the rollers, and the raised parts of the aluminum plate surface caused by processing are flattened. The device can adapt to hyperbolic aluminum plates of different curvatures through an adaptive adjustment structure, and can roll and flatten aluminum plates of different models and sizes. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 2Shown is a schematic diagram of the expanded three-dimensional structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 3 Shown is a schematic diagram of the first partial cross-sectional structure of the arc rolling and flattening device for hyperbolic aluminum plates of different curvatures according to the present invention; Figure 4 Shown is a schematic diagram of the second partial cross-sectional structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 5 Shown is a schematic diagram of the front view of the planar structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 6 Shown is a schematic diagram of the third partial cross-sectional structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 7 Shown is a schematic diagram of the top plan structure of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to the present invention; Figure 8 Shown is a schematic diagram of the side view of the upper roller of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures of the present invention; Figure 9 Shown is a schematic diagram of the cross-sectional structure of the upper roller of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures of the present invention; Figure 10 Shown is a schematic diagram of the side view of the lower roller of the arc rolling and flattening device for hyperbolic aluminum plates with different curvatures of the present invention; Figure 11 Shown is a schematic diagram of the cross-sectional structure of the lower roller of the arc rolling and flattening device for hyperbolic aluminum plates of different curvatures of the present invention; Explanation of the accompanying drawings: 1. Main bracket; 2. Upper bracket; 3. Lower bracket; 4. Upper support; 5. Upper roller; 101. Fixed threaded seat; 102. Screw; 103. Handwheel; 104. Connecting block; 105. Connecting pipe; 106. Lower support; 107. Mounting frame; 108. Lower roller; 201. First rotating shaft; 202. First bearing; 6. Slot; 301. Second rotating shaft; 302. Second bearing; 401. Threaded sight hole; 402. Connecting slot; 501. Support leg; 502. Mold presentation sheet metal frame; 503. Presentation slot; 7. Spare roller; 8. Third rotating shaft; 601. Mounting plate; 602. Mounting hole. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings and examples.
[0021] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The present invention provides an embodiment: a rolling and flattening device for hyperbolic aluminum plates with different radians, comprising a main bracket 1, an upper bracket 2 is provided on one side of the main bracket 1, a lower bracket 3 is provided on one side of the main bracket 1, the upper bracket 2 and the lower bracket 3 are coaxially aligned, an upper support 4 is provided below the upper bracket 2, an upper roller 5 is provided on the inner side of the upper support 4, and an operating component is provided on the inner side of the lower bracket 3, the operating component comprises a fixed threaded seat 101, a screw 102, a handwheel 103, a connecting block 104, a connecting pipe 105, a lower support 106, a mounting bracket 107 and a lower roller 108, a fixed threaded seat 101 is provided on the inner side of the lower bracket 3, the inner side of the fixed threaded seat 101 is threadedly connected to the screw 102, the lower end of the screw 102 is provided with a handwheel 103, one end of the screw 102 is rotatably connected to the connecting block 104, a connecting block 104 is provided above the connecting block 104, and the inner side flat key of the connecting pipe 105 is connected to The lower support 106 is provided with a mounting bracket 107 at the upper end of the lower support 106, and a lower roller 108 is provided on the inner side of the mounting bracket 107. The screw 102 is driven to rotate by turning the hand wheel 103, and the screw 102 and the connecting block 104 are driven to move up and down by the rotation of the screw 102. The height of the connecting tube 105 and the lower support 106 is adjusted by the up and down movement of the screw 102 and the connecting block 104, thereby adjusting the height position of the mounting bracket 107 and the lower roller 108. The aluminum plate workpiece to be flattened is placed between the upper roller 5 and the lower roller 108, and the spacing between the upper roller 5 and the lower roller 108 is adjusted to adapt to hyperbolic aluminum plates of different curvatures and thicknesses. By placing the aluminum plate workpiece between the upper roller 5 and the lower roller 108, the aluminum plate is pulled back and forth along the rotating cross-section direction of the upper roller 5 and the lower roller 108, and the friction between the aluminum plate and the rollers is generated, and the raised parts of the aluminum plate surface caused by processing are flattened.
[0022] See also Figure 7 、 Figure 8 and Figure 9 In this embodiment, a first rotating shaft 201 is provided on the inner side of the upper support 4, and a first bearing 202 is provided on the outer side of the first rotating shaft 201. The first bearing 202 is located in the groove position on the inner side of the upper roller 5. When in use, the upper roller 5 is rotated along the pulling direction of the aluminum plate by the first rotating shaft 201 and the first bearing 202 when the operator pulls the aluminum plate, rubbing the surface of the aluminum plate. A slot 6 is provided above the mounting frame 107. The slot 6 is a U-shaped structure with an upper opening. A second rotating shaft 301 is provided on the inner side of the slot 6, and a second bearing 302 is provided on the outer side of the second rotating shaft 301. The second bearing 302 is located in the groove position on the inner side of the lower roller 108. When in use, the U-shaped structure of the slot 6 can place the second rotating shaft 301 on the inner side of the mounting frame 107, which is convenient for the operator to install and replace the lower roller 108.
[0023] See also Figure 10 and Figure 11 In this embodiment, a threaded viewing hole 401 is provided on the inner side of the connecting block 104, and a connecting groove 402 is provided on the side of the lower bracket 3. When in use, the threaded viewing hole 401 is used to embed the limit bolt. When the screw 102 rotates, the connecting block 104 connecting tube 105 maintains only the up and down movement of the axial position when moving up and down. A plurality of groups of legs 501 are provided on the outside of the main bracket 1. A mold array sheet metal frame 502 is provided on one side of a group of legs 501. A plurality of groups of array slots 503 are provided on the side of the mold array sheet metal frame 502. The plurality of array slots 503 are arranged in a linear array. When in use, the main bracket is supported by the plurality of legs 501. 1 for support, multiple sets of spare rollers 7 are provided on the inner side of the mold presenting sheet metal frame 502, and the inner side of the spare rollers 7 is provided with a third rotating shaft 8. When in use, the presenting slot 503 of the mold presenting sheet metal frame 502 is used to place the third rotating shaft 8, so that multiple sets of spare rollers 7 are placed through the mold presenting sheet metal frame 502, and a mounting plate 601 is provided at one end of the support leg 501, and a mounting hole 602 is opened on the inner side of the mounting plate 601. When in use, the mounting hole 602 of the mounting plate 601 is aligned with the slot hole on the side of the main bracket 1, and the mounting plate 601 and the main bracket 1 are fixed with a bolt structure to connect the support leg 501 and the main bracket 1.
[0024] When in use, the hyperbolic aluminum plate arc rolling and flattening device comprises the following steps: S1: Bolt the support leg 501 to the main support 1 through the mounting hole 602 of the mounting plate 601, ensuring that the main support 1 is placed horizontally; place the spare roller 7 in the arrangement slot 503 of the mold arrangement sheet metal frame 502 through the third rotating shaft 8; S2: Turn the hand wheel 103 to drive the screw 102 to rotate in the fixed threaded seat 101, driving the connecting block 104 and the connecting tube 105 to move up and down along the axis of the screw 102, and adjust the height of the lower support 106 so that the distance between the lower roller 108 and the upper roller 5 can adapt to the thickness and curvature of the aluminum plate to be processed; S3: Place the hyperbolic aluminum plate workpiece between the upper roller 5 and the lower roller 108 to ensure that the curved surface of the aluminum plate contacts the rollers; S4: Pull the aluminum plate back and forth along the rotational direction of the upper roller 5 and the lower roller 108, and use the friction between the rollers and the aluminum plate to flatten the raised parts of the surface; S5: Check the surface flatness of the aluminum plate after rolling. If further adjustment is needed, repeat steps S2-S4 until the requirements are met. S6: If a roller of a different specification needs to be replaced, remove the second rotating shaft 301 in the slot 6, remove the lower roller 108, and select a spare roller 7 from the mold presentation sheet metal rack 502 for installation; S7: Turn off the equipment, clean the aluminum chips remaining on the surface of the roller, and return the spare roller 7 to the mold presentation sheet metal frame 502.
[0025] During operation, first, the hand wheel 103 is turned to drive the lead screw 102 to rotate in the fixed threaded seat 101. The lead screw 102 drives the connecting block 104 and the connecting pipe 105 to move up and down along the axial direction through the threaded transmission. The flat key on the inner wall of the connecting pipe 105 cooperates with the keyway on the outer wall of the lower support 106 to ensure that the lower support 106 only produces axial displacement and does not rotate; by adjusting the height of the lower support 106, the distance between the lower roller 108 and the upper roller 5 on the top of the mounting frame 107 can be adapted to the thickness and curvature of the aluminum plate to be processed; Place the hyperbolic aluminum plate workpiece between the upper roller 5 and the lower roller 108, ensuring that the curved surface of the aluminum plate contacts the outer edge of the rollers. The operator pulls the aluminum plate back and forth along the direction of the roller rotation. The upper roller 5 rotates around the first rotation axis 201 and the lower roller 108 rotates around the second rotation axis 301 via the first bearing 202, and the lower roller 108 rotates around the second rotation axis 301 via the second bearing 302. The friction between the rollers and the aluminum plate flattens the raised parts of the surface. If you need to replace the roller of different specifications, you only need to remove the second rotating shaft 301 from the slot 6, remove the lower roller 108 from the mounting frame 107, and then select an appropriate spare roller 7 from the presentation slot 503 of the mold presentation sheet metal frame 502 for installation.
[0026] According to actual verification, this device realizes precise height adjustment of the lower roller 108 through the threaded transmission of the lead screw 102 and the fixed threaded seat 101; the adjustment range is 50mm; it can adapt to hyperbolic aluminum plates with a thickness of 1-5mm and an arc radius of 500-2000mm; the mold presentation sheet metal rack 502 can store multiple sets of spare rollers 7 with different curvatures; the replacement operation time does not exceed minutes; the production efficiency is significantly improved; the surface roughness of the aluminum plate after rolling can reach Ra1.6μm; the flatness error is less than 0.2mm, which improves the pass rate; it effectively solves the problem of uneven rolling caused by the fixed curvature of the roller in traditional devices.
[0027] Through the above steps, the screw 102 is driven to rotate by rotating the hand wheel 103, and the screw 102 and the connecting block 104 are driven to move up and down by rotating the screw 102. The height of the connecting pipe 105 and the lower support 106 is adjusted by moving the screw 102 and the connecting block 104 up and down, thereby adjusting the height position of the mounting frame 107 and the lower roller 108. The aluminum plate workpiece to be flattened is placed between the upper roller 5 and the lower roller 108, and the spacing between the upper roller 5 and the lower roller 108 is adjusted to adapt to hyperbolic aluminum plates of different curvatures and thicknesses. The aluminum plate workpiece is placed between the upper roller 5 and the lower roller 108, and the aluminum plate is pulled back and forth along the rotating cross-section direction of the upper roller 5 and the lower roller 108. Friction is generated between the aluminum plate and the rollers, and the raised parts of the aluminum plate surface caused by processing are flattened. The device uses an adaptive adjustment structure to adapt to hyperbolic aluminum plates of different curvatures, and can roll and flatten aluminum plates of different models and sizes.
[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims
1. A device for rolling and flattening hyperbolic aluminum plates of different curvatures, comprising a main support (1), an upper support (2) provided on one side of the main support (1), and a lower support (3) provided on one side of the main support (1), characterized in that: The upper bracket (2) and the lower bracket (3) are coaxially aligned. An upper support (4) is provided below the upper bracket (2). An upper roller (5) is provided on the inner side of the upper support (4). An operating assembly is provided on the inner side of the lower bracket (3). The operating assembly includes a fixed threaded seat (101), a lead screw (102), a hand wheel (103), a connecting block (104), a connecting pipe (105), a lower support (106), a mounting frame (107) and a lower roller (108). A fixed threaded seat ( 101), the inner thread of the fixed threaded seat (101) is connected to the screw (102), the lower end of the screw (102) is provided with a hand wheel (103), one end of the screw (102) is rotatably connected to the connecting block (104), the upper part of the connecting block (104) is provided with a connecting block (104), the inner flat key of the connecting pipe (105) is connected to the lower support (106), the upper end of the lower support (106) is provided with a mounting frame (107), and the inner side of the mounting frame (107) is provided with a lower roller (108).
2. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 1 is characterized in that: A first rotating shaft (201) is provided on the inner side of the upper support (4), a first bearing (202) is provided on the outer side of the first rotating shaft (201), and the first bearing (202) is located in a groove on the inner side of the upper roller (5).
3. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 1 is characterized in that: A card slot (6) is provided above the mounting frame (107), and the card slot (6) is a U-shaped structure with an upper opening.
4. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 3 is characterized in that: A second rotating shaft (301) is provided on the inner side of the slot (6), a second bearing (302) is provided on the outer side of the second rotating shaft (301), and the second bearing (302) is located in a groove position on the inner side of the lower roller (108).
5. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 1 is characterized in that: A threaded viewing hole (401) is provided on the inner side of the connecting block (104), and a connecting groove (402) is provided on the side of the lower bracket (3).
6. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 1 is characterized in that: A plurality of groups of supporting legs (501) are provided on the outside of the main support (1), and a mold-presenting sheet metal frame (502) is provided on one side of a group of supporting legs (501).
7. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 6 is characterized in that: A plurality of groups of array slots (503) are provided on the side of the mold array sheet metal frame (502), and the plurality of groups of array slots (503) are arranged in a linear array.
8. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 6 is characterized in that: A plurality of sets of spare rollers (7) are arranged on the inner side of the mold presentation sheet metal frame (502), and a third rotating shaft (8) is arranged on the inner side of the spare rollers (7).
9. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to claim 6, characterized in that: A mounting plate (601) is provided at one end of the supporting leg (501), and a mounting hole (602) is provided on the inner side of the mounting plate (601).
10. The arc rolling and flattening device for hyperbolic aluminum plates with different curvatures according to any one of claims 1 to 9, characterized in that: When in use, the hyperbolic aluminum plate arc rolling and flattening device comprises the following steps: S1: Bolt the support leg (501) to the main bracket (1) through the mounting hole (602) of the mounting plate (601), ensuring that the main bracket (1) is placed horizontally; place the spare roller (7) in the presentation slot (503) of the mold presentation sheet metal frame (502) through the third rotating shaft (8); S2: Turn the hand wheel (103) to drive the lead screw (102) to rotate in the fixed threaded seat (101), drive the connecting block (104) and the connecting pipe (105) to move up and down along the axis of the lead screw (102), and adjust the height of the lower support (106) so that the distance between the lower roller (108) and the upper roller (5) is adapted to the thickness and curvature of the aluminum plate to be processed; S3: Place the hyperbolic aluminum plate workpiece between the upper roller (5) and the lower roller (108), ensuring that the curved surface of the aluminum plate contacts the rollers; S4: Pulling the aluminum plate back and forth along the direction of the rotating cross section of the upper roller (5) and the lower roller (108), and using the friction between the roller and the aluminum plate to flatten the raised parts of the surface; S5: Check the surface flatness of the aluminum plate after rolling. If further adjustment is needed, repeat steps S2-S4 until the requirements are met. S6: If a roller of a different specification needs to be replaced, remove the second rotating shaft (301) in the slot (6), remove the lower roller (108), and select a spare roller (7) from the mold sheet metal rack (502) for installation; S7: Turn off the equipment, clean the aluminum chips remaining on the surface of the roller, and return the spare roller (7) to the mold presentation sheet metal frame (502).