High-quality aluminum alloy sheet metal processing cold rolling mill

Abstract

The application relates to the technical field of cold rolling machines for metal processing, in particular to a high-quality aluminum alloy plate metal processing cold rolling machine, which comprises a rack, two working rollers are adjustably arranged in the middle of the rack, a working frame is adjustably arranged in front of the rack, the two working frames are connected through lifting devices, electric push plates are slidably arranged on opposite surfaces of the two working frames, and electric turntables are rotatably arranged above the electric push plates. The application can not only pre-treat the surface of the aluminum alloy plate before cold rolling, can better adhere the cold rolling oil to the surface of the aluminum alloy plate, and improves the subsequent cold rolling effect; and can detect whether the material is deviated before feeding.

Description

Technical Field

[0001] This invention relates to the field of cold rolling mills for metal processing, and more particularly to a cold rolling mill for processing high-quality aluminum alloy sheets. Background Technology

[0002] In the context of modern life, high-quality aluminum alloy sheets have become a key basic material supporting modern technological life. With its excellent strength-to-weight ratio, corrosion resistance and recyclability, aluminum alloys are deeply integrated into various fields of high-end manufacturing and daily consumption. Traditional cold rolling equipment can no longer meet the higher-level demands, and there is an urgent need for a new generation of cold rolling technology to produce higher-quality aluminum alloy sheets.

[0003] A search revealed Chinese patent CN217121267U, which discloses a cold rolling mill for metal sheets. The mill includes a cold rolling mill base, a cold rolling mill frame fixedly installed on the periphery of the top of the base, a lower drive motor fixedly installed on one side of the bottom of the frame, a lower cold rolling roll fixedly installed at the output end of the motor and located inside the frame, and two cold rolling hydraulic cylinders fixedly installed at the top of the frame, with a cold rolling assembly fixedly installed between the two cylinders and facing the lower cold rolling roll.

[0004] Currently, traditional cold rolling mills for high-quality aluminum alloy sheet metal processing typically have the following shortcomings: First, they do not perform surface treatment, do not consider the need to use cold rolling oil for cold rolling, and the poor adhesion of cold rolling oil to the aluminum metal surface may lead to increased consumption of cold rolling oil. Furthermore, they do not detect whether the material is misaligned during feeding, which may result in misalignment. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of surface treatment and feed offset detection, and to propose a high-quality cold rolling mill for aluminum alloy sheet metal processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-quality aluminum alloy sheet metal processing cold rolling mill includes a frame, two adjustable work rolls mounted in the middle of the frame, and an adjustable work frame mounted at the front of the frame. The two work frames are connected by a lifting device. Electric push plates are slidably mounted on the opposite surfaces of the two work frames. An electric turntable is rotatably mounted above the electric push plates, and a spiral electrode is mounted on the electric turntable. An air inlet frame is fixedly mounted on the inner side of the electric push plates, and an ionization tube is installed inside the air inlet frame. An adjusting rod is fixedly mounted on the outer side of the air inlet frame, and an air outlet frame is adjustablely mounted on the adjusting rod. A winding groove is opened at the bottom of the air outlet frame, and metal wire is wound on the winding groove. Two electrical terminals are provided on the opposite surfaces of the two work frames, and a standard wire is connected between the two electrical terminals.

[0008] Preferably, bearing seats are symmetrically installed above and below the work roller, and an intermediate roller is installed in each bearing seat.

[0009] Preferably, a hydraulic device is installed at the bottom of the frame, a support rod is installed at the front end of the hydraulic device, an installation frame is installed on the support rod, and a support roller located below the frame is rotatably installed inside the installation frame.

[0010] Preferably, a hoist is fixedly installed on the top of the frame, and connecting arms are fixedly installed on the left and right sides of the hoist, with an upper support roller fixedly installed below the connecting arms.

[0011] Preferably, a sliding frame is installed on both sides of the intermediate roller, and a driving device is slidably connected to the side of the sliding frame.

[0012] Preferably, the front end of the spiral electrode is designed in a spiral shape.

[0013] Preferably, air inlet pipes are installed on the sides of both working frames, and air outlet holes are opened on the inner walls of the air inlet frame and the working frames on both sides of the spiral electrode.

[0014] Preferably, two power terminals are installed in the middle of the opposite sides of the two working frames, a standard line is installed in the middle of the two power terminals, and a vision sensor is installed on the working frame corresponding to the standard line below the standard line.

[0015] Preferably, the vertical position of the standard line is located in the middle of the spiral electrode and at the upper end of the air inlet frame.

[0016] Preferably, the metal wires are horizontally aligned with the ionization tubes, but are staggered from each other.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. It can pre-treat the surface of aluminum alloy sheets before cold rolling, allowing the cold rolling oil to adhere better to the surface of the aluminum alloy sheets and improve the effect of subsequent cold rolling.

[0019] 2. It can detect whether the material has shifted before feeding.

[0020] 3. The end of the intermediate roller "presses" against the part of the work roller most prone to harmful bending, thereby actively and accurately compensating for the bending deformation of the work roller and avoiding defects such as edge waviness or center waviness. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall isometric structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the frame and hoist structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the drive device and bearing housing structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0024] Figure 4 This is a schematic diagram of the intermediate roll and work roll structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0025] Figure 5 This is a schematic diagram of the working frame and air inlet pipe structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the power supply column and standard line structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0027] Figure 7 This is a schematic diagram of the metal wire and ionization tube structure of a cold rolling mill for high-quality aluminum alloy sheet metal processing proposed in this invention.

[0028] In the diagram: 1. Frame, 2. Hoist, 3. Connecting arm, 4. Mounting frame, 5. Support roller, 6. Drive device, 7. Bearing seat, 8. Intermediate roller, 9. Sliding frame, 10. Working roller, 11. Hydraulic device, 12. Support rod, 13. Lifting device, 14. Working frame, 15. Air inlet pipe, 16. Electric push plate, 17. Electric turntable, 18. Spiral electrode, 19. Electrical connection column, 20. Standard line, 21. Vision detector, 22. Air outlet frame, 23. Air inlet frame, 24. Adjusting rod, 25. Metal wire, 26. Ionization tube, 27. Winding groove. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Reference Figure 1-3 A high-quality aluminum alloy sheet metal processing cold rolling mill includes a frame 1, with two adjustable work rolls 10 mounted in the middle of the frame 1. A work frame 14 is adjustablely mounted in front of the frame 1, and the two work frames 14 are connected by a lifting device 13. The distance between the two work frames 14 can be changed according to the thickness of the material. Electric push plates 16 are slidably mounted on the opposite surfaces of the two work frames 14. The electric push plates 16 can finely adjust the distance between the spiral electrode 18 and the sheet metal. An electric turntable 17 is rotatably mounted above the electric push plates 16. The electric turntable 17 drives the spiral electrode 18 to rotate, increasing the corona treatment area and improving the corona treatment effect. The spiral electrode 18 ionizes the inert gas supplied from the working frame 14, performing corona treatment on the surface of the aluminum alloy plate. This mainly removes oil stains, organic matter, and other contaminants from the surface of the aluminum alloy plate and forms a micro-uneven structure, increasing the adhesion of subsequent cold rolling oil and improving the cold rolling effect. The spiral electrode 18 is installed on the electric turntable 17. An air inlet frame 23 is fixedly installed on the inner side of the electric push plate 16. An ionization tube 26 is installed inside the air inlet frame 23. An adjusting rod 24 is fixedly installed on the outer side of the air inlet frame 23. An air outlet frame 22 is adjustablely installed on the adjusting rod 24. The distance between the air outlet frame 22 and the air inlet frame 23 can be adjusted by adjusting the adjusting rod 24 to control the side air intake volume, thereby controlling the total air output volume of the air outlet frame 22. After being powered on, the inert gas can be ionized to generate plasma. The plasma is then attracted by the metal wire 25 wound in the winding groove 27 at the bottom of the air outlet frame 22, generating airflow. Finally, the plasma wind blows onto the surface of the aluminum alloy plate, forming an inert gas barrier on the highly active surface after corona treatment, blocking oxygen contact and preventing rapid oxidation. This further cleans and slightly roughens the surface, enhancing surface activity and improving the cold rolling effect when combined with cold rolling oil. The bottom of the air outlet frame 22 has a winding groove 27 with metal wire 25 wound on it. Two electrical posts 19 are provided on the opposite sides of the two working frames 14, with a standard line 20 connected between them. After the ions generated by the spiral electrode 18 treat the plate, the excess ions are attracted by the negatively charged standard line 20, generating airflow towards the air inlet frame 23, which helps to increase the force of the plasma wind in the future.

[0031] The work roll 10 is symmetrically mounted with bearing seats 7 on its upper and lower sides. Each bearing seat 7 is equipped with an intermediate roll 8. One side of the intermediate roll 8 is in contact with the support roll 5, and the other side is in contact with the work roll 10.

[0032] A hydraulic device 11 is installed at the bottom of the frame 1. A support rod 12 is installed at the front end of the hydraulic device 11. An installation frame 4 is installed on the support rod 12. A support roller 5 located below the frame is rotatably installed inside the installation frame 4. The hydraulic device 11, together with the support rod 12, can provide effective support and adjust the height of the bottom support roller 5.

[0033] A hoist 2 is fixedly installed on the top of the frame 1. A connecting arm 3 is fixedly installed on each side of the hoist 2. An upper support roller 5 is fixedly installed below the connecting arm 3, which can provide fixation and height adjustment for the upper support roller 5.

[0034] Sliding frames 14 are installed on both sides of the intermediate roller 8. The driving device 6 is slidably connected to the side of the sliding frame 14. The working roller 10 is in direct contact with the support roller 5, and the contact length is greater than the width of the aluminum alloy plate. The part of the working roller 10 outside the width range of the aluminum alloy plate (i.e., the "non-contact area") may bend due to the lack of reverse support, resulting in plate shape defects such as "edge wavy" (wrinkling at the edge of the strip) or "center wavy" (wrinkling in the middle of the strip). Therefore, it is necessary to determine the thickness, width, and hardness of the aluminum alloy plate. These parameters directly affect the position and adjustment amount of the intermediate roller 8. By driving the intermediate roller 8 to move laterally on the sliding frame 9 through the driving device 6, the relative position of its end and the harmful bending part of the working roller 10 can be precisely adjusted, so that the end of the intermediate roller 8 "blocks" the part of the working roller 10 most prone to harmful bending, thereby actively and accurately compensating for the bending deformation of the working roller 10.

[0035] The front end of the spiral electrode 18 is designed in a spiral shape, which is equivalent to unfolding a single point into a continuous discharge path. The spiral structure gives its front end a longer effective discharge edge, enabling the formation of a wider and more uniform electric field region around the electrode. This is beneficial for generating a large area of ​​plasma with consistent intensity on the surface of the material being treated, thereby achieving a more uniform increase in surface energy.

[0036] Both working frames 14 are equipped with air inlet pipes 15 on their sides. Air outlet holes are opened on the inner walls of the working frames 14 on both sides of the air inlet frame 23 and the spiral electrode 18 to provide inert gas for the ionization of the ionization tube 26 and the spiral electrode 18.

[0037] Two electrical terminals 19 are installed in the middle of the opposite sides of the two working frames 14. A standard line 20 is installed in the middle of the two electrical terminals 19. A vision sensor 21 is installed on the corresponding working frame 14 below the standard line 20. The vision detector 21 uses the standard line 20 as an accurate standard to determine whether the aluminum alloy plate has undergone lateral displacement in the cold rolling feeding process.

[0038] The vertical position of the standard line 20 is located in the middle of the spiral electrode 18 and at the top of the air inlet frame 23. The airflow guided by the standard line 20 can enter from the side of the air outlet frame 22, increasing the total air volume of the air outlet frame 22.

[0039] The metal wire 25 and the ionization tube 26 are horizontally aligned, but they are staggered from each other. This provides more ionization space and reduces the obstruction effect on the airflow, thereby increasing the air volume generated by the air outlet frame 22.

[0040] In this invention, the aluminum alloy plate to be processed is passed through the middle of the working frame 14. The spacing between the two working frames 14 is adjusted according to the thickness of the aluminum alloy plate. The lifting device 13 can be activated to adjust the spacing of the working frames 14. The aluminum alloy plate is then clamped between the two working rollers 10.

[0041] If the working roll 10 is in direct contact with the support roll 5, and the contact length is greater than the width of the aluminum alloy plate, the part of the working roll 10 outside the width range of the aluminum alloy plate (i.e., the "non-contact area") may bend due to the lack of reverse support, resulting in plate shape defects such as "edge wavy" (wrinkling at the edge of the strip) or "center wavy" (wrinkling in the middle of the strip). Therefore, it is necessary to clarify the thickness, width, and hardness of the current aluminum alloy plate. These parameters directly affect the position and adjustment amount of the intermediate roll 8. By driving the intermediate roll 8 to move left and right on the sliding frame 9 through the drive device 6, the relative position of its end and the harmful bending part of the working roll 10 can be precisely adjusted, so that the end of the intermediate roll 8 "blocks" the part of the working roll 10 most prone to harmful bending, thereby actively and accurately compensating for the bending deformation of the working roll 10.

[0042] After adjusting the position of the intermediate roller 10, according to the process requirements, the mounting frame 4 of the bottom support roller 5 is connected to the support rod 12, and the support rod 12 is connected to the hydraulic device 11. This ensures the fixation effect of the bottom support rod 12 on the foundation of the support roller 5. At the same time, the height of the bottom support roller 5 can be adjusted as needed. The upper support roller 5 is connected to the elevator 2 by the connecting arm 3. The positioning and fine adjustment of the upper support roller 5 are completed through the connecting arm 3 and the elevator 2. The fine adjustment of the upper and lower positions of the support roller 5 determines the pressure on the aluminum alloy plate in the middle of the working roller 10.

[0043] Before the formal cold rolling, the surface of the aluminum alloy sheet needs to be treated to achieve the best cold rolling effect. Start the working frame 14 and introduce inert gas through the air inlet pipe 15. Start the electric push plate 16 to bring the spiral electrode 18 on the electric turntable 17 close to the surface of the aluminum alloy sheet. Start the electric turntable 17 and simultaneously connect the spiral electrode 18 to the positive voltage, and connect the standard line 20 to the negative voltage through the electric post 19. The spiral electrode 18 ionizes the inert gas replenished from the working frame 14 and performs corona treatment on the surface of the aluminum alloy sheet. This mainly removes oil stains, organic matter and other contaminants from the surface of the aluminum alloy sheet, and forms a micro-concave-convex structure to increase the adhesion of the subsequent cold rolling oil and improve the cold rolling effect.

[0044] After the ions generated by ionization are processed, the excess ions will be attracted by the negatively charged standard line 20, generating an airflow towards the air inlet frame 23, which helps to improve the wind power of the plasma wind in the future; and a vision detector 21 is also provided below the standard line 20. The vision detector 21 uses the standard line 20 as an accurate standard to determine whether the aluminum alloy plate has undergone lateral displacement in the cold rolling feeding process.

[0045] An ionization tube 26 is installed inside the air inlet frame 23. When energized, it can ionize inert gas to generate plasma. The plasma is then attracted by the metal wire 25 wound in the wire groove 27 at the bottom of the air outlet frame 22, generating airflow. Finally, the plasma wind blows onto the surface of the aluminum alloy plate, forming an inert gas barrier on the highly active surface after corona treatment, blocking oxygen contact and preventing rapid oxidation. This further cleans and micro-roughens the surface, enhances surface activity, and improves the cold rolling effect when combined with cold rolling oil.

[0046] An adjusting rod 24 is provided between the air outlet frame 22 and the air inlet frame 23, which can adjust the distance between the air outlet frame 22 and the air inlet frame 23 to control the side air intake volume, thereby controlling the total air output volume of the air outlet frame 22. The airflow guided by the standard line 20 can enter from the side of the air outlet frame 22, increasing the total air output volume of the air outlet frame 22. Plasma blowing can further remove byproducts such as ozone that may remain after corona treatment and surface dust, creating a cleaner surface for subsequent processes and improving the cold rolling effect.

[0047] The metal wire 25 and the ionization tube 26 are horizontally aligned, but they are staggered from each other. This provides more ionization space and reduces the obstruction effect on the airflow, thereby increasing the air volume generated by the air outlet frame 22.

[0048] Finally, the cold-rolled aluminum alloy sheet is discharged from the other side of the work roll 10 and collected.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cold rolling mill for high-quality aluminum alloy sheet metal processing, comprising a frame (1), characterized in that, Two working rollers (10) are adjustablely installed in the middle of the frame (1). Two working frames (14) are adjustablely installed in front of the frame (1). The two working frames (14) are connected by a lifting device (13). Electric push plates (16) are slidably installed on the opposite surfaces of the two working frames (14). An electric turntable (17) is rotatably installed above the electric push plate (16). A spiral electrode (18) is installed on the electric turntable (17). A spiral electrode (18) is fixedly installed on the inner side of the electric push plate (16). An air inlet frame (23) is provided, an ionization tube (26) is installed inside the air inlet frame (23), an adjustment rod (24) is fixedly installed on the outside of the air inlet frame (23), an air outlet frame (22) is adjustablely installed on the adjustment rod (24), a winding groove (27) is provided at the bottom of the air outlet frame (22), a metal wire (25) is wound on the winding groove (27), and two electrical terminals (19) are provided on the opposite sides of the two working frames (14), and a standard line (20) is connected between the two electrical terminals (19).

2. The cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, The working roller (10) is symmetrically equipped with bearing seats (7) on its upper and lower sides, and an intermediate roller (8) is installed in each of the bearing seats (7).

3. The cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, A hydraulic device (11) is installed at the bottom of the frame (1), and a support rod (12) is installed at the front end of the hydraulic device (11). An installation frame (4) is installed on the support rod (12), and a support roller (5) located below the frame (1) is rotatably installed inside the installation frame (4).

4. The cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, A hoist (2) is fixedly installed on the top of the frame (1), and a connecting arm (3) is fixedly installed on the left and right sides of the hoist (2). An upper support roller (5) is fixedly installed below the connecting arm (3).

5. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 2, characterized in that, The intermediate roller (8) has sliding frames (9) installed on both sides, and a drive device (6) is slidably connected to the sides of the sliding frames (9).

6. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, The front end of the spiral electrode (18) is designed to be spiral-shaped.

7. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, Both working frames (14) are equipped with air inlet pipes (15) on their sides, and air outlet holes are opened on the inner walls of the working frames (14) on both sides of the air inlet frame (23) and the spiral electrode (18).

8. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, Two power terminals (19) are installed in the middle of the opposite sides of the two working frames (14). A standard line (20) is installed in the middle of the two power terminals (19). A vision sensor (21) is installed on the working frame (14) below the standard line (20).

9. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 8, characterized in that, The vertical position of the standard line (20) is located in the middle of the spiral electrode (18) and at the top of the air inlet frame (23).

10. A cold rolling mill for high-quality aluminum alloy sheet metal processing according to claim 1, characterized in that, The metal wire (25) is horizontally aligned with the ionization tube (26), but they are staggered from each other.

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