A segmented continuous rolling device for aluminum strip

Abstract

This invention provides a segmented continuous rolling apparatus for aluminum strip, relating to the technical field of aluminum production equipment. It includes an uncoiling mechanism, a rolling mechanism, and a rewinding mechanism. The rolling mechanism comprises a rolling frame and multiple sets of rolling rolls. Each rolling roll set includes a first roll set and a second roll set, each comprising two vertically arranged first and second rolling rolls. The rolling gap of the first and second rolling rolls is the same. Several first rolling sections and second rolling sections are arrayed along the length of the first and second rolling rolls, spaced apart and with non-overlapping rolling surfaces. Force equalization components are provided at the first and second roll sets, and several anti-deviation components are spaced apart from the rolling roll sets on the rolling frame. This invention enables segmented continuous rolling of aluminum strip, ensuring uniform rolling quality across all parts of the aluminum strip in the width direction, improving the aluminum strip rolling effect, and reducing aluminum strip rolling losses.

Description

Technical Field

[0001] This invention relates to the field of aluminum production equipment technology, and in particular to a segmented continuous rolling device for aluminum strip. Background Technology

[0002] In the aluminum strip production process, a rolling process is required to change the strip's strength and hardness, and the desired thickness is achieved by adjusting the distance between the upper and lower rolls. Currently, the rolls used in rolling mills are typically of a single, continuous length. When the strip width is large, the axial length of the rolls is also correspondingly long. However, as the roll length increases, the rolls are not only prone to complete deformation, leading to differences in the rolling force applied to the strip by different parts of the roll along the axial direction, but it is also difficult to ensure the levelness of the rolls. This results in inconsistent rolling thicknesses for strips of the same width, making it impossible to guarantee the rolling quality of the strip. Summary of the Invention

[0003] The purpose of this invention is to provide a segmented continuous rolling device for aluminum strip, which can realize segmented continuous rolling of aluminum strip, ensure uniform rolling quality of each part in the width direction of aluminum strip, improve the rolling effect of aluminum strip, and reduce the rolling loss of aluminum strip.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A segmented continuous rolling device for aluminum strip includes an unwinding mechanism, a rolling mechanism, and a rewinding mechanism arranged sequentially along the feeding direction. The rolling mechanism includes a rolling frame arranged along the feeding direction, and multiple sets of rolling rolls are arranged on the rolling frame along its length direction. The rolling gap of the multiple sets of rolling rolls decreases sequentially along the feeding direction.

[0006] Each set of rolling rolls includes a first roll group and a second roll group arranged front to back along the feeding direction. The first roll group includes two first rolling rolls arranged vertically and parallel to each other. The second roll group includes two second rolling rolls arranged vertically and parallel to each other. Both the first and second rolling rolls are arranged horizontally along the width direction of the rolling stand and are rotatably mounted on the rolling stand around their axis. The rolling gap between the two first rolling rolls and the rolling gap between the two second rolling rolls in each set of rolling rolls are the same.

[0007] The first rolling roll has several first rolling sections arranged along its length direction and coaxial with it. The second rolling roll has several second rolling sections arranged along its length direction and coaxial with it. The outer diameter of the first rolling section is larger than the outer diameter of the first rolling roll, and the outer diameter of the second rolling section is larger than the outer diameter of the second rolling roll. The first rolling section and the second rolling section are arranged at intervals, and their rolling surfaces do not overlap and completely cover the width direction of the aluminum strip.

[0008] The first and second roll groups are each provided with a force equalization component, which cooperates with the corresponding first and second rolling rolls; the rolling frame is also provided with several anti-deviation components along the feeding direction, and the several anti-deviation components and multiple rolling roll groups are arranged at intervals, with the multiple rolling roll groups located between the anti-deviation components at both ends of the rolling frame.

[0009] By adopting the above technical solution, the aluminum coil to be rolled is installed on the unwinding mechanism and the aluminum strip is released. After the aluminum strip is rolled to the required thickness by several sets of rolling rolls in the rolling mechanism, it is wound up by the winding mechanism. The rolling gap of multiple sets of rolling rolls decreases sequentially along the feeding direction, which can roll the aluminum strip to the required thickness in multiple stages, ensuring the rolling accuracy of the aluminum strip and reducing damage to the rolling rolls. Each set of rolling rolls includes a first roll set and a second roll set. The first roll set includes two first rolls arranged vertically and equipped with a first rolling section. The second roll set includes two second rolls arranged vertically and equipped with a second rolling section. The first rolling section and the second rolling section are spaced apart, and their rolling surfaces do not overlap and completely cover the width direction of the aluminum strip. In this way, the first rolling section and the second rolling section perform two segmented rolling operations on the width direction of the aluminum strip, thereby achieving segmented rolling of both the length and width of the aluminum strip. Furthermore, the overall weight of a single first and second rolling roll is reduced, and a force-equalizing component is provided to work with it. The first and second rolling rolls are subjected to force at multiple points, which reduces the risk of bending of the entire first and second rolling rolls and ensures rolling quality. The anti-deviation component prevents the aluminum strip from shifting during the rolling and conveying process. The anti-deviation component and the rolling roll group are spaced apart to prevent the aluminum strip surface from being repeatedly rolled or missed by the first and second rolling sections, ensuring comprehensive rolling of the aluminum strip, as well as rolling quality and efficiency, and reducing rolling losses.

[0010] Furthermore, each set of force equalization components includes a force equalization frame arranged vertically and corresponding to the corresponding first rolling roll and second rolling roll, respectively. The force equalization frame is arranged along the width direction of the rolling frame, and a plurality of vertically arranged force equalization rods are arrayed on the force equalization frame along its length direction. The force equalization rods are vertically slidably mounted on the corresponding force equalization frame. A force equalization ring is provided at one end of the force equalization rod near the corresponding first rolling roll and second rolling roll. The force equalization ring is spaced apart from the corresponding first rolling section and second rolling section, and its outer diameter is smaller than the outer diameter of the corresponding first rolling section and second rolling section. The force equalization ring is fitted on the corresponding first rolling roll and second rolling roll and is coaxially arranged with it.

[0011] By adopting the above technical solution, several force-equalizing rings are spaced apart from the corresponding first and second rolling sections. The cooperation between the force-equalizing rods and the force-equalizing rings enables multi-point hoisting of the first and second rolling rolls. This ensures that the first and second rolling rolls are subjected to force at multiple points, reducing the risk of bending. Furthermore, both ends of the first and second rolling sections have force-bearing points, guaranteeing the horizontality of their axes and the uniformity of force distribution. This ensures consistent aluminum strip thickness achieved by the first and second rolling sections, thereby guaranteeing the overall rolling quality of the aluminum strip. The outer diameter of the force-equalizing rings is smaller than the outer diameter of the corresponding first and second rolling sections to prevent the force-equalizing rings from dislodging from the aluminum strip surface during rolling, which would affect the rolling effect.

[0012] Furthermore, the inner wall of the uniform force ring is circumferentially arrayed with several rolling grooves, and a rolling seat that slides radially along the uniform force ring is installed in the rolling groove. A contact spring is connected between the rolling seat and the rolling groove and is arranged along its sliding direction. Several contact springs are arranged in a circumferential array around the uniform force ring. Each rolling seat is circumferentially mounted with a ball. Several balls are arranged in a circumferential array around the inner wall of the uniform force ring and roll in cooperation with the outer walls of the corresponding first rolling roll and second rolling roll.

[0013] By adopting the above technical solution, the inner wall of the force-equalizing ring is engaged with the corresponding first and second rolling rolls through a series of rolling balls. This achieves the goal of supporting the corresponding first and second rolling rolls while preventing interference between the force-equalizing ring and the rotation of the first and second rolling rolls. Specifically, the rolling seat and rolling groove enable the rolling installation of the rolling balls, and the abutment spring ensures that the rolling balls are always in rolling engagement with the corresponding first and second rolling rolls, preventing the wear of the outer walls of the first and second rolling rolls after prolonged use from affecting the supporting effect of the force-equalizing ring.

[0014] Furthermore, the sidewalls of the first and second rolling rolls are also arrayed with a plurality of positioning plates located on one side of the force equalizing ring along their length direction. The positioning plates are arranged radially along the corresponding first and second rolling rolls, and the end of the positioning plate away from the corresponding first and second rolling rolls is located inside the outer diameter of the corresponding first and second rolling sections. Each force equalizing rod is connected to a leveling cylinder that drives it to slide vertically at the end away from the force equalizing ring. The force equalizing frame is provided with a plurality of rangefinders that correspond one-to-one with the positioning plates along its length direction. The rangefinders are connected to the leveling cylinders that are close to them for communication feedback control.

[0015] By adopting the above technical solution, the rangefinder measures the distance between itself and the corresponding positioning piece, and controls the corresponding leveling cylinder to drive the corresponding force equalizing rod through the force equalizing ring to vertically raise and lower the corresponding first rolling roll and second rolling roll, thereby realizing the horizontal adjustment of the entire first rolling roll and second rolling roll, and ensuring the horizontality of both ends of the first rolling section and the second rolling section, thus ensuring the rolling quality of the aluminum strip.

[0016] Furthermore, each set of anti-deviation components includes anti-deviation plates located on both sides of the rolling stand and arranged along the length of the rolling stand. The two anti-deviation plates in each set are slidably installed on the rolling stand along the width of the rolling stand. A support plate is provided on the side of the two anti-deviation plates that are close to each other, which is arranged along its length and is perpendicular to it. A limiting plate is provided above the support plate that is parallel to it and slidably installed on the anti-deviation plate. The anti-deviation plates, support plates and limiting plates located on the same side form a U-shaped structure with an opening on one side, and the opening of the U-shaped structure in each set of anti-deviation components is located on the side that is close to each other.

[0017] By adopting the above technical solution, two anti-deviation plates in each anti-deviation assembly are driven to slide along the width direction of the rolling stand according to the width of the aluminum strip to be rolled. The distance between the two anti-deviation plates is adjusted so that they limit the aluminum strip from both sides, preventing deviation during the aluminum strip conveying process. Specifically, support plates support the aluminum strip from the lower surfaces on both sides, while limiting plates limit it from the upper surfaces on both sides, reducing upward movement of the aluminum strip during conveying. The limiting plates are vertically slidably mounted on the anti-deviation plates, and the distance between the limiting plates and the support plates can be adjusted according to the aluminum strip thickness.

[0018] Furthermore, the anti-deviation plate has a plurality of vertically arranged wheels embedded along its length on the side wall near the support plate. The axes of the plurality of vertical wheels are vertically arranged and are rotatably mounted on the anti-deviation plate around their axes. The upper surface of the support plate and the lower surface of the limiting plate have a plurality of horizontally arranged wheels embedded along their length. The axes of the plurality of horizontal wheels are arranged along the width of the rolling frame and are rotatably mounted on the corresponding support plate and limiting plate around their axes. The plurality of vertical and horizontal wheels located on the same side are spaced apart.

[0019] By adopting the above technical solution, a number of vertical rollers and a number of horizontal rollers provide limiting support and conveying for the aluminum strip from the sides and upper and lower surfaces of both sides, reducing wear during the conveying process and thus reducing rolling losses. The vertical and horizontal rollers located on the same side are spaced apart to avoid interference between them due to size differences and to facilitate the installation and replacement of the vertical and horizontal rollers.

[0020] Furthermore, both ends of the first rolling roll and both ends of the second rolling roll are provided with lifting seats, and both ends of the first rolling roll and both ends of the second rolling roll are rotatably mounted on the corresponding lifting seats. The two ends of the force equalizing frame are connected to the lifting seats at the ends of the corresponding first rolling roll and second rolling roll. The lifting seats are vertically slidably mounted on the rolling frame, and a drive assembly for driving the lifting seats to slide vertically is provided between the first roll group and the second roll group in each group of rolling rolls.

[0021] By adopting the above technical solution, the first and second rolling rolls are rotatably mounted on lifting seats at both ends. The lifting seats are vertically slidably mounted on the rolling frame, and the force equalizing frame is connected at both ends to the lifting seats corresponding to the first and second rolling rolls. According to actual usage requirements, the lifting seats can be driven to slide vertically, adjusting the rolling gap between the two first and two second rolling rolls to meet usage needs under different conditions. The force equalizing frame rises and falls synchronously to avoid interference. Furthermore, the lifting seats between the first and second roll groups in each rolling roll group are driven by the same drive assembly, ensuring that the rolling gap between the first and second roll groups in each rolling assembly remains equal, thereby guaranteeing the rolling quality in the width direction of the aluminum strip.

[0022] Furthermore, the drive assembly includes a drive rod disposed between the first and second roll groups in each set of rolling rolls and located on both sides of the rolling frame. The drive rod is arranged along the length of the rolling frame and has vertically arranged linkage racks at both ends. The drive rod is vertically slidably mounted on the rolling frame. A linkage gear is rotatably mounted on the rolling frame, meshing with the corresponding linkage rack and with its axis arranged along the width of the rolling frame. The axis of the linkage gear is located on the symmetrical plane of two lifting seats located at the same end and corresponding vertically in the corresponding first and second roll groups. The two lifting seats located at the same end and corresponding vertically are respectively provided with vertically arranged and facing drive racks. Each set of two drive racks is located on both sides of the corresponding linkage gear and meshes with the linkage gear.

[0023] By adopting the above technical solution, the drive rod drives the linkage rack to slide vertically, the linkage rack meshes with the linkage gear close to it, driving the linkage gear to rotate, the linkage gear meshes with the drive racks on both sides at the same time, and the two drive racks drive the corresponding lifting seats to slide synchronously closer or further away from each other, thereby realizing the adjustment of the rolling gap between the two first rolling rolls in the first roll group and the adjustment of the rolling gap between the two second rolling rolls in the second roll group, effectively improving the adjustment efficiency.

[0024] Furthermore, the first and second roll groups are respectively provided with spraying assemblies that cooperate with them. Each spraying assembly includes a spraying frame arranged vertically and corresponding to the corresponding first and second rolling rolls. The spraying frame is provided with a plurality of spraying arc plates along its length direction that cooperate with the corresponding first and second rolling sections. The axis of the spraying arc plates is arranged along the width direction of the rolling frame and is located on the side close to the corresponding first and second rolling sections. The plurality of spraying arc plates on each spraying frame are connected by the same spraying pipe. The four spraying pipes in each roll group are connected to the same spraying box. The spraying box is located on one side of the rolling frame. A recycling box is provided below the rolling frame along its length direction and open at the top. The plurality of spraying assemblies are all located within the opening range of the recycling box.

[0025] By adopting the above technical solution, the spraying liquid in the spray box is sprayed onto the corresponding first and second rolling sections through four spray pipes and several spray arc plates that are connected to the spray pipes one by one. This provides lubrication and cooling for rolling. Excess spraying liquid is recycled into a recycling tank to prevent splashing from affecting the rolling environment and allows for recycling and reuse of the spraying liquid. In this way, the spray arc plates spray the corresponding first and second rolling sections, eliminating the need for repeated spraying to cover the width of the aluminum strip. The spraying liquid is used immediately after spraying, ensuring its effectiveness, reducing its operating costs, and avoiding waste.

[0026] Furthermore, the inner wall of the spray arc plate is provided with a cleaning arc plate that cooperates with it and is in contact with the outer wall of the corresponding first rolling section and second rolling section. A plurality of spray nozzles are arranged in an array along the length direction on both sides of the cleaning arc plate on the spray arc plate, and the plurality of spray nozzles are in communication with the corresponding spray arc plate. The spray nozzles on both sides of the cleaning arc plate are located on both sides of the corresponding first rolling section and second rolling section, and the plurality of spray nozzles are inclined and their outlets are located on the side closer to the corresponding first rolling section and second rolling section.

[0027] By adopting the above technical solution, the cleaning arc blades are attached to the corresponding first and second rolling sections, allowing for real-time cleaning of the outer walls of the first and second rolling sections. This prevents foreign matter adhering to the outer walls of the first and second rolling sections from affecting the rolling quality of the aluminum strip surface. Furthermore, several inclined spray nozzles can add spray liquid at specific points, reducing waste and splashing, and spraying from both sides accelerates the cooling efficiency of the corresponding first and second rolling sections.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. In this invention, multiple sets of rolling rolls are arranged along the feeding direction, and the rolling gap of the multiple sets of rolling rolls decreases sequentially along the feeding direction. This allows the aluminum strip to be rolled to the required thickness in multiple passes, ensuring the rolling accuracy of the aluminum strip and reducing damage to the rolling rolls. Each set of rolling rolls includes a first roll set and a second roll set. The first roll set includes two first rolls arranged vertically and equipped with a first rolling section. The second roll set includes two second rolls arranged vertically and equipped with a second rolling section. The first rolling section and the second rolling section are spaced apart, and their rolling surfaces do not overlap and completely cover the width direction of the aluminum strip. In this way, the first rolling section and the second rolling section perform two segmented rolling operations on the width direction of the aluminum strip, thereby achieving segmented rolling of both the length and width of the aluminum strip.

[0030] 2. In this invention, a force equalization component is set up to cooperate with the first rolling roll and the second rolling roll. The first rolling roll and the second rolling roll are subjected to force at multiple points, which can reduce the risk of bending of the first rolling roll and the second rolling roll as a whole, and ensure the axial levelness of the first rolling roll and the second rolling roll, thereby ensuring the overall rolling quality of the aluminum strip.

[0031] 3. In this invention, several anti-deviation components are set at intervals with the rolling roll group. The anti-deviation components can prevent the aluminum strip from deviating during the rolling and conveying process, and can prevent the surface of the aluminum strip from being repeatedly rolled or missed by the first rolling section and the second rolling section, so as to ensure the full rolling of the aluminum strip, as well as the rolling quality and rolling efficiency, and reduce the rolling loss of the aluminum strip.

[0032] 4. In this invention, the lifting seats at both ends of the first and second rolling rolls are vertically slidably mounted on the rolling frame. The lifting seats between the first and second rolling rolls in each rolling roll group are driven to slide synchronously by the driving assembly. The rolling gap between the two first rolling rolls and the two second rolling rolls can be adjusted according to actual usage requirements to meet the usage requirements under different conditions and ensure that the rolling gap between the first and second rolling rolls in each rolling assembly remains equal, thereby ensuring the rolling quality in the width direction of the aluminum strip.

[0033] 5. In this invention, a spraying assembly is provided to add spraying liquid to the first rolling section and the second rolling section, which provides lubrication and cooling for rolling. It eliminates the need for repeated spraying to cover the width direction of the aluminum strip, and the spraying liquid is ready to use immediately after spraying, ensuring its effectiveness and reducing its cost, thus avoiding waste. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a segmented continuous rolling device for aluminum strip;

[0035] Figure 2 This is a schematic diagram of a set of rolling rolls in a segmented continuous aluminum strip rolling device.

[0036] Figure 3This is a partial structural diagram of a set of rolling rolls in a segmented continuous aluminum strip rolling device.

[0037] Figure 4 yes Figure 3 Enlarged view of section A;

[0038] Figure 5 This is a schematic diagram of the anti-deviation component in a segmented continuous rolling mill for aluminum strip;

[0039] Figure 6 This is a partial structural diagram of a segmented continuous rolling device for aluminum strip.

[0040] In the diagram, 01 is the unwinding mechanism; 02 is the rolling mechanism; 03 is the winding mechanism; 04 is the force equalizing component; 05 is the anti-deviation component; 06 is the drive component; 07 is the spraying component; 08 is the control console; 1 is the rolling frame; 2 is the rolling roll group; 3 is the first roll group; 4 is the second roll group; 5 is the first rolling roll; 6 is the second rolling roll; 7 is the first rolling section; 8 is the second rolling section; 9 is the force equalizing frame; 10 is the force equalizing bar; 11 is the force equalizing ring; 12 is the rolling groove; 13 is the rolling seat; 14 is the abutment spring; 15 is the ball bearing; 16 is the positioning plate; 17 is the positioning plate. 18. Leveling cylinder; 19. Rangefinder; 10. Anti-deviation plate; 11. Anti-deviation screw; 12. Anti-deviation motor; 20. Support plate; 21. Limiting plate; 22. Limiting lifting cylinder; 23. Vertical wheel; 24. Horizontal wheel; 25. Lifting seat; 26. Drive rod; 27. Drive lifting cylinder; 28. Linkage rack; 29. ​​Linkage gear; 20. Drive rack; 30. Spray frame; 31. Spray arc plate; 32. Spray pipe; 33. Spray box; 34. Recovery box; 35. Return pipe; 36. Cleaning arc plate; 37. Spray nozzle. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0042] A segmented continuous rolling apparatus for aluminum strip, such as Figure 1As shown, the device includes an unwinding mechanism 01, a rolling mechanism 02, and a winding mechanism 03 arranged sequentially along the feeding direction. The unwinding mechanism 01 mounts the aluminum coil to be rolled and releases the aluminum strip. After the aluminum strip is rolled to the required thickness by several sets of rolling rolls 2 in the rolling mechanism 02, it is wound up by the winding mechanism 03. Both the unwinding mechanism 01 and the rolling mechanism 02 include a frame, a shaft perpendicular to the feeding direction, and a motor driving the shaft, similar to existing technologies. The diagram only provides a simplified illustration and will not be elaborated further. Additionally, a control console 08 is provided on one side of the rolling frame 1. The control console 08 uses automatic control technology, such as PLC, to control the automated operation and linkage of the various components in this device. PLC automatic control technology is existing technology and will not be elaborated further.

[0043] Specifically, such as Figure 1 and Figure 2 As shown, the rolling mechanism 02 includes a rolling frame 1 arranged along the feeding direction. Multiple sets of rolling rolls 2 are arranged along the length of the rolling frame 1, and the rolling gap of the rolling rolls 2 decreases sequentially along the feeding direction. Each set of rolling rolls 2 includes a first roll group 3 and a second roll group 4 arranged front-to-back along the feeding direction. The first roll group 3 includes two vertically arranged and parallel first rolling rolls 5, and the second roll group 4 includes two vertically arranged and parallel second rolling rolls 6. Both the first rolling rolls 5 and the second rolling rolls 6 are horizontally arranged along the width direction of the rolling frame 1 and are rotatably mounted on the rolling frame 1 around their axis. The rolling gap between the two first rolling rolls 5 and the rolling gap between the two second rolling rolls 6 in each set of rolling rolls 2 are the same.

[0044] like Figure 1 and Figure 2 As shown, a plurality of first rolling sections 7 are arranged along the length direction of the first rolling roll 5 and are coaxial with it. A plurality of second rolling sections 8 are arranged along the length direction of the second rolling roll 6 and are coaxial with it. The outer diameter of the first rolling section 7 is larger than the outer diameter of the first rolling roll 5, and the outer diameter of the second rolling section 8 is larger than the outer diameter of the second rolling roll 6. The first rolling section 7 and the second rolling section 8 are arranged at intervals, and their rolling surfaces do not overlap and completely cover the width direction of the aluminum strip.

[0045] like Figure 1 and Figure 2As shown, the rolling gap of multiple sets of rolling rolls 2 decreases sequentially along the feeding direction, rolling the aluminum strip to the required thickness in multiple passes. The first rolling section 7 and the second rolling section 8 in each set of rolling rolls 2 further perform segmented rolling on the width of the aluminum strip twice, thus achieving segmented rolling of both the length and width of the aluminum strip, ensuring rolling accuracy and reducing damage to the rolling rolls 2. The rolling stand 1 has several conveying rolls arranged along its length and width. Two conveying rolls are arranged parallel to each other at the same position, and the aluminum strip passes between the upper and lower conveying rolls and is conveyed forward. To maintain clarity in the drawing, only the conveying rolls at both ends of the rolling stand 1 are shown; the remaining positions are omitted.

[0046] like Figure 1 and Figure 2 As shown, to ensure the levelness and uniform force distribution of the first rolling roll 5 and the second rolling roll 6, force equalization components 04 are respectively provided at the first roll group 3 and the second roll group 4. The force equalization components 04 cooperate with the corresponding first rolling roll 5 and second rolling roll 6. The overall weight of the first rolling roll 5 and the second rolling roll 6 is reduced, and with the cooperation of the force equalization components 04, the first rolling roll 5 and the second rolling roll 6 can achieve multi-point force distribution, which can reduce the risk of bending of the first rolling roll 5 and the second rolling roll 6 as a whole and ensure the rolling quality.

[0047] Specifically, such as Figure 2 and Figure 3 As shown, each set of force equalization components 04 includes a force equalization frame 9 arranged vertically and corresponding to the corresponding first rolling roll 5 and second rolling roll 6, respectively. The force equalization frame 9 is arranged along the width direction of the rolling frame 1, and a plurality of vertically arranged force equalization rods 10 are arrayed on the force equalization frame 9 along its length direction. The plurality of force equalization rods 10 are vertically slidably mounted on the corresponding force equalization frame 9. A force equalization ring 11 is provided at one end of the force equalization rod 10 near the corresponding first rolling roll 5 and second rolling roll 6. The force equalization ring 11 is spaced apart from the corresponding first rolling section 7 and second rolling section 8, and its outer diameter is smaller than the outer diameter of the corresponding first rolling section 7 and second rolling section 8. The force equalization ring 11 is fitted on the corresponding first rolling roll 5 and second rolling roll 6 and is coaxially arranged with them.

[0048] like Figure 2 and Figure 3 As shown, several force-equalizing rings 11 are spaced apart from the corresponding first rolling section 7 and second rolling section 8. The cooperation between the force-equalizing rod 10 and the force-equalizing rings 11 enables multi-point hoisting of the first rolling roll 5 and the second rolling roll 6. This not only ensures that the first rolling roll 5 and the second rolling roll 6 are subjected to force at multiple points, reducing the risk of bending of the first rolling roll 5 and the second rolling roll 6, but also ensures that both ends of the first rolling section 7 and the second rolling section 8 have force-bearing points, guaranteeing the horizontality of the axis of the first rolling section 7 and the second rolling section 8 as well as the uniformity of force, ensuring the uniformity of the aluminum strip rolling thickness of the first rolling section 7 and the second rolling section 8, and thus ensuring the overall rolling quality of the aluminum strip.

[0049] like Figure 3 and Figure 4 As shown, to ensure the supporting effect of the uniform force ring 11 on the corresponding first rolling roll 5 and second rolling roll 6, a plurality of rolling grooves 12 are arranged circumferentially on the inner wall of the uniform force ring 11. Each rolling groove 12 is equipped with a rolling seat 13 that slides radially along the uniform force ring 11. A contact spring 14, arranged along the sliding direction, connects the rolling seat 13 and the rolling groove 12. The plurality of contact springs 14 are arranged circumferentially around the uniform force ring 11. A ball bearing 15 is rolled on each rolling seat 13. The plurality of balls bearing 15 are arranged circumferentially around the inner wall of the uniform force ring 11 and roll in cooperation with the outer wall of the corresponding first rolling roll 5 and second rolling roll 6. Through the rolling cooperation between the inner wall of the uniform force ring 11 and the corresponding first rolling roll 5 and second rolling roll 6 via the plurality of balls bearing 15, the uniform force ring 11 supports the corresponding first rolling roll 5 and second rolling roll 6 while avoiding interference between the rotation of the uniform force ring 11 and the first rolling roll 5 and second rolling roll 6.

[0050] like Figure 3 and Figure 4 As shown, to further ensure the levelness of the first rolling roll 5 and the second rolling roll 6 and to guarantee the rolling quality of the aluminum strip in the width direction, a plurality of positioning plates 16 located on one side of the force equalizing ring 11 are arrayed along the length direction of the sidewalls of the first rolling roll 5 and the second rolling roll 6. The positioning plates 16 are arranged radially along the corresponding first rolling roll 5 and the second rolling roll 6, and the end of the positioning plate 16 away from the corresponding first rolling roll 5 and the second rolling roll 6 is located inside the outer diameter of the corresponding first rolling section 7 and the second rolling section 8. The end of each force equalizing rod 10 away from the force equalizing ring 11 is connected to a leveling cylinder 17 that drives it to slide vertically. A plurality of rangefinders 18 corresponding one-to-one with the positioning plates 16 are provided on the force equalizing frame 9 along its length direction. The rangefinders 18 and the leveling cylinders 17 close to them are connected for communication feedback control.

[0051] like Figure 3 and Figure 4 As shown, the rangefinder 18 measures the distance between itself and the corresponding positioning piece 16, and controls the corresponding leveling cylinder 17 to drive the corresponding force equalizing rod 10 to drive the corresponding first rolling roll 5 and second rolling roll 6 to rise and fall vertically through the force equalizing ring 11, thereby realizing the horizontal adjustment of the entire first rolling roll 5 and second rolling roll 6 and ensuring the horizontality of both ends of the first rolling section 7 and the second rolling section 8, thus ensuring the rolling quality of the aluminum strip.

[0052] like Figure 1 and Figure 2As shown, the rolling stand 1 is also equipped with several sets of anti-deviation components 05 along the feeding direction. These anti-deviation components 05, multiple sets of rolling rolls 2, and several first rolls 3 and second rolls 4 are spaced apart, with the multiple sets of rolling rolls 2 located between the anti-deviation components 05 at both ends of the rolling stand 1. The anti-deviation components 05 prevent the aluminum strip from shifting during the rolling and conveying process. The spaced arrangement of the anti-deviation components 05 and the rolling rolls 2 prevents the aluminum strip surface from being repeatedly rolled or missed by the first rolling section 7 and the second rolling section 8, ensuring comprehensive rolling of the aluminum strip, as well as rolling quality and efficiency, and reducing rolling losses.

[0053] Specifically, such as Figure 2 and Figure 5 As shown, each anti-deviation assembly 05 includes anti-deviation plates 19 located on both sides of the rolling frame 1 and arranged along the length of the rolling frame 1. Each set of two anti-deviation plates 19 is slidably mounted on the rolling frame 1 along the width of the rolling frame 1. On the side where the two anti-deviation plates 19 are close to each other, a support plate 20 is provided along its length and perpendicular to it. Above the support plate 20, a limiting plate 21 is provided, parallel to it and slidably mounted vertically on the anti-deviation plates 19. The limiting plate 21 is connected to a limiting lifting cylinder 211 that drives its vertical sliding. The anti-deviation plates 19, support plates 20, and limiting plates 21 located on the same side form a U-shaped structure with an opening on one side, and the opening of the U-shaped structure in each set of anti-deviation assemblies 05 is located on the side where they are close to each other. In order to achieve synchronous sliding of the anti-deviation plates 19 on both sides, an anti-deviation screw 191 is rotatably mounted on the rolling frame 1 along its width direction. The anti-deviation plates 19 at both ends of the anti-deviation screw 191 are helically connected to the anti-deviation screw with opposite thread directions. One end of the anti-deviation screw 191 is connected to an anti-deviation motor 192 that drives its positioning rotation.

[0054] like Figure 2 and Figure 5 As shown, according to the width of the aluminum strip to be rolled, the two anti-deviation plates 19 in each anti-deviation assembly 05 are driven to slide along the width direction of the rolling frame 1, adjusting the distance between the two anti-deviation plates 19 so that they limit the aluminum strip from both sides, preventing deviation during the aluminum strip conveying process. Support plates 20 support the aluminum strip from the lower surfaces of both sides, and limiting plates 21 limit the aluminum strip from the upper surfaces of both sides, reducing upward movement of the aluminum strip during conveying. The limiting plates 21 are vertically slidably mounted on the anti-deviation plates 19, and the distance between the limiting plates 21 and the support plates 20 can be adjusted according to the aluminum strip thickness.

[0055] like Figure 2 and Figure 5As shown, to reduce wear on the surface and sides of the aluminum strip, a plurality of vertically arranged wheels 22 are embedded along the length of the side wall of the anti-deviation plate 19 near the support plate 20. The axes of the vertically arranged wheels 22 are vertically aligned and rotate around their axes on the anti-deviation plate 19. A plurality of horizontally arranged wheels 23 are embedded along the length of the upper end face of the support plate 20 and the lower end face of the limiting plate 21. The axes of the horizontally arranged wheels 23 are aligned along the width of the rolling frame 1 and rotate around their axes on the corresponding support plate 20 and limiting plate 21. The vertically arranged wheels 22 and the horizontally arranged wheels 23 on the same side are spaced apart. The vertically arranged wheels 22 and the horizontally arranged wheels 23 provide limiting support and conveying for the aluminum strip from the sides and upper and lower surfaces of both sides, reducing wear during the conveying process and thus reducing rolling losses of the aluminum strip.

[0056] like Figure 1 and Figure 6 As shown, to adjust the rolling gap, lifting seats 24 are provided at both ends of the first rolling roll 5 and the second rolling roll 6. The two ends of the first rolling roll 5 and the two ends of the second rolling roll 6 are rotatably mounted on the corresponding lifting seats 24. The two ends of the force equalizer 9 are connected to the lifting seats 24 at the corresponding ends of the first rolling roll 5 and the second rolling roll 6. The lifting seats 24 are vertically slidably mounted on the rolling frame 1. The lifting seats 24 are rotatably mounted at both ends of the first rolling roll 5 and the second rolling roll 6, and are vertically slidably mounted on the rolling frame 1. The force equalizer 9 is connected at both ends to the lifting seats 24 at the corresponding ends of the first rolling roll 5 and the second rolling roll 6. According to actual usage requirements, the lifting seats 24 can be driven to slide vertically, adjusting the rolling gap between the two first rolling rolls 5 and the two second rolling rolls 6 to meet usage requirements under different conditions. The force equalizer 9 rises and falls synchronously to avoid interference.

[0057] like Figure 2 and Figure 3As shown, to achieve vertical drive adjustment of the lifting seat 24, a drive assembly 06 for driving the lifting seat 24 to slide vertically is provided between the first roll group 3 and the second roll group 4 in each rolling roll group 2. Specifically, the drive assembly 06 includes a drive rod 25 located between the first roll group 3 and the second roll group 4 in each rolling roll group 2 and on both sides of the rolling frame 1. The drive rod 25 is arranged along the length direction of the rolling frame 1 and has vertically arranged linkage racks 26 at both ends. The drive rod 25 is vertically slidably mounted on the rolling frame 1 and connected to a drive lifting cylinder 251 for driving its vertical sliding. A linkage gear 27 is rotatably mounted on the rolling frame 1, meshing with the corresponding linkage rack 26 and with its axis arranged along the width direction of the rolling frame 1. The axis of the linkage gear 27 is located on the symmetrical plane of the two lifting seats 24 located at the same end and corresponding vertically in the first roll group 3 and the second roll group 4. Two lifting seats 24 located at the same end and corresponding to each other are respectively provided with vertically arranged and facing drive racks 28. Each set of two drive racks 28 are located on both sides of the corresponding linkage gear 27 and mesh with the linkage gear 27.

[0058] like Figure 2 and Figure 3 As shown, the driving lifting cylinder 251 drives the driving rod 25 to drive the linkage rack 26 to slide vertically. The linkage rack 26 meshes with the linkage gear 27 close to it, causing the linkage gear 27 to rotate. The linkage gear 27 meshes with the driving racks 28 on both sides at the same time. The two driving racks 28 drive the corresponding lifting seats 24 to slide synchronously closer or further away from each other, realizing the adjustment of the rolling gap between the two first rolling rolls 5 in the first roll group 3 and the adjustment of the rolling gap between the two second rolling rolls 6 in the second roll group 4, effectively improving the adjustment efficiency.

[0059] like Figure 1 and Figure 6As shown, to further ensure the rolling effect on the aluminum strip, spraying assemblies 07 are respectively provided at the first roll group 3 and the second roll group 4. Each spraying assembly 07 includes a spraying frame 29 arranged vertically and corresponding to the first rolling roll 5 and the second rolling roll 6. The spraying frame 29 is also connected to the lifting seats 24 at its two ends. Several spraying arc plates 30 are provided on the spraying frame 29 along its length direction, which cooperate with the corresponding first rolling section 7 and the second rolling section 8. The axis of the spraying arc plate 30 is arranged along the width direction of the rolling frame 1 and is located on the side close to the corresponding first rolling section 7 and the second rolling section 8. Several spraying arc plates 30 on each spraying frame 29 are connected through the same spraying pipe 31. The four spraying pipes 31 in each roll group 2 are connected to the same spraying box 32, which is located on one side of the rolling frame 1. A recovery box 33 with an open top is provided below the rolling frame 1, running along its length. The recovery box 33 is connected to several spray boxes 32 via a return pipe 331, and several sets of spray components 07 are located within the opening range of the recovery box 33. The recovery box 33 has a filtration function, and its specific filtration structure can be selected from existing technologies such as filter screens, which are not shown in the figure.

[0060] like Figure 1 and Figure 6 As shown, the spraying liquid in the spray box 32 is sprayed onto the corresponding first rolling section 7 and second rolling section 8 through four spray pipes 31 and several spray arc plates 30 connected to the spray pipes 31 one by one, providing lubrication and cooling for rolling. Excess spraying liquid is collected into the recovery box 33 and filtered, and then flows back into the spray box 32 through the return pipe 331 for reuse, avoiding spraying liquid splashing from affecting the rolling environment and allowing the spraying liquid to be recycled and reused. In this way, the spray arc plates 30 spray the corresponding first rolling section 7 and second rolling section 8, eliminating the need for double spraying to cover the width of the aluminum strip, and the spraying liquid is used immediately after spraying, ensuring its effectiveness and reducing its operating costs, thus avoiding waste.

[0061] Among them, such as Figure 6As shown, each spray arc plate 30 has a cleaning arc plate 34 on its inner wall that cooperates with and adheres to the outer wall of the corresponding first rolling section 7 and second rolling section 8. The cleaning arc plate 34 adheres to the corresponding first rolling section 7 and second rolling section 8, which can clean the outer wall of the first rolling section 7 and second rolling section 8 in real time, avoiding foreign matter adhering to the outer wall of the first rolling section 7 and second rolling section 8 and affecting the rolling quality of the aluminum strip surface. In addition, a plurality of spray nozzles 35 are arranged in an array along the length direction on both sides of the cleaning arc plate 34 on the spray arc plate 30. The plurality of spray nozzles 35 are connected to the corresponding spray arc plate 30. The spray nozzles 35 on both sides of the cleaning arc plate 34 are located on both sides of the corresponding first rolling section 7 and second rolling section 8. The plurality of spray nozzles 35 are inclined and their outlets are located on the side closer to the corresponding first rolling section 7 and second rolling section 8. Several inclined spray nozzles 35 can add spray liquid at fixed points, reducing waste and splashing of spray liquid, and spraying from both sides to accelerate the cooling efficiency of the corresponding first rolling section 7 and second rolling section 8.

[0062] Working principle and usage of this invention:

[0063] The aluminum coil to be rolled is mounted on the uncoiling mechanism 01, and the aluminum strip is released. After being rolled to the required thickness by several sets of rolling rolls 2 in the rolling mechanism 02, the aluminum strip is wound up by the winding mechanism 03. The rolling gap of the multiple sets of rolling rolls 2 decreases sequentially along the feeding direction, rolling the aluminum strip to the required thickness in stages along the length direction. In each set of rolling rolls 2, the first rolling section 7 of the first roll group 3 and the rolling section of the second roll group 4 roll the aluminum strip in stages along the width direction, thereby achieving segmented rolling of both the length and width of the aluminum strip. During the rolling process, the spray assembly 07 adds spray liquid to the first rolling section 7 and the second rolling section 8 to provide lubrication and cooling for the rolling process.

[0064] The overall weight of the single first rolling roll 5 and second rolling roll 6 is reduced, and a force-equalizing component 04 is provided to cooperate with them. The first rolling roll 5 and second rolling roll 6 are subjected to force at multiple points, which can reduce the risk of bending of the first rolling roll 5 and second rolling roll 6 as a whole and ensure rolling quality. The anti-deviation component 05 can prevent the aluminum strip from deviating during the rolling and conveying process. The anti-deviation component 05 and the rolling roll group 2 are set at intervals to prevent the aluminum strip surface from being repeatedly rolled or missed by the first rolling section 7 and the second rolling section 8, so as to ensure the full rolling of the aluminum strip, as well as the rolling quality and rolling efficiency, and reduce the rolling loss of the aluminum strip.

[0065] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A segmented continuous rolling device for aluminum strip, comprising an unwinding mechanism (01), a rolling mechanism (02), and a winding mechanism (03) arranged sequentially along the feeding direction, characterized in that: The rolling mechanism (02) includes a rolling frame (1) arranged along the feeding direction. Multiple sets of rolling rolls (2) are arranged on the rolling frame (1) along its length direction. The rolling gap of the multiple sets of rolling rolls (2) decreases sequentially along the feeding direction. Each set of rolling rolls (2) includes a first roll group (3) and a second roll group (4) arranged back and forth along the feeding direction. The first roll group (3) includes two first rolling rolls (5) arranged vertically and parallel to each other. The second roll group (4) includes two second rolling rolls (6) arranged vertically and parallel to each other. The first rolling rolls (5) and the second rolling rolls (6) are both arranged horizontally along the width direction of the rolling frame (1) and are mounted on the rolling frame (1) for positioning and rotation around its axis. The rolling gap between the two first rolling rolls (5) and the rolling gap between the two second rolling rolls (6) in each set of rolling rolls (2) are the same. The first rolling roll (5) is provided with a plurality of first rolling sections (7) arranged along its length direction and coaxial with it. The second rolling roll (6) is provided with a plurality of second rolling sections (8) arranged along its length direction and coaxial with it. The outer diameter of the first rolling section (7) is larger than the outer diameter of the first rolling roll (5), and the outer diameter of the second rolling section (8) is larger than the outer diameter of the second rolling roll (6). The first rolling section (7) and the second rolling section (8) are arranged at intervals, and their rolling surfaces do not overlap and completely cover the width direction of the aluminum strip. The first roll group (3) and the second roll group (4) are respectively provided with force equalization components (04), and the force equalization components (04) cooperate with the corresponding first rolling roll (5) and second rolling roll (6); the rolling frame (1) is also provided with several anti-deviation components (05) along the feeding direction, and the several anti-deviation components (05) and multiple rolling roll groups (2) are spaced apart, and the multiple rolling roll groups (2) are located between the anti-deviation components (05) at both ends of the rolling frame (1); Each set of force equalization components (04) includes a force equalization frame (9) arranged vertically and corresponding to the corresponding first rolling roll (5) and second rolling roll (6). The force equalization frame (9) is arranged along the width direction of the rolling frame (1), and a plurality of vertically arranged force equalization rods (10) are arranged in an array along its length direction on the force equalization frame (9). The force equalization rods (10) are vertically slidably installed on the corresponding force equalization frame (9). A force equalization ring (11) is provided at one end of the force equalization rod (10) near the corresponding first rolling roll (5) and second rolling roll (6). The force equalization ring (11) is spaced apart from the corresponding first rolling section (7) and second rolling section (8), and its outer diameter is smaller than the outer diameter of the corresponding first rolling section (7) and second rolling section (8). The force equalization ring (11) is fitted on the corresponding first rolling roll (5) and second rolling roll (6) and is coaxial with them.

2. The segmented continuous rolling apparatus for aluminum strip according to claim 1, characterized in that: The inner wall of the uniform force ring (11) is arranged with several rolling grooves (12). A rolling seat (13) that slides radially along the uniform force ring (11) is installed in the rolling groove (12). A contact spring (14) is connected between the rolling seat (13) and the rolling groove (12) along its sliding direction. Several contact springs (14) are arranged in a circular array around the uniform force ring (11). A ball (15) is rolled on each rolling seat (13). Several balls (15) are arranged in a circular array around the inner wall of the uniform force ring (11) and roll in cooperation with the outer wall of the corresponding first rolling roll (5) and second rolling roll (6).

3. The segmented continuous rolling apparatus for aluminum strip according to claim 2, characterized in that: The sidewalls of the first rolling roll (5) and the second rolling roll (6) are also arrayed with a number of positioning plates (16) located on one side of the uniform force ring (11) along their length direction. The positioning plates (16) are arranged radially along the corresponding first rolling roll (5) and second rolling roll (6), and the end of the positioning plate (16) away from the corresponding first rolling roll (5) and second rolling roll (6) is located inside the outer diameter of the corresponding first rolling section (7) and second rolling section (8). Each uniform force rod (10) is connected to a leveling cylinder (17) that drives it to slide vertically at the end away from the uniform force ring (11). The uniform force frame (9) is provided with a number of rangefinders (18) that correspond one-to-one with the positioning plates (16) along its length direction. The rangefinders (18) and the leveling cylinders (17) close to them are connected for communication feedback control.

4. The segmented continuous rolling apparatus for aluminum strip according to claim 1, characterized in that: Each set of anti-deviation components (05) includes anti-deviation plates (19) located on both sides of the rolling frame (1) and arranged along the length of the rolling frame (1). Each set of two anti-deviation plates (19) are slidably installed on the rolling frame (1) along the width of the rolling frame (1). A support plate (20) is provided on the side of the two anti-deviation plates (19) that are close to each other, and is arranged along its length and is perpendicular to it. A limiting plate (21) is provided above the support plate (20) that is parallel to it and is slidably installed on the anti-deviation plate (19). The anti-deviation plates (19), support plates (20) and limiting plates (21) located on the same side form a U-shaped structure with an opening on one side. The opening of the U-shaped structure in each set of anti-deviation components (05) is located on the side that is close to each other.

5. The segmented continuous rolling apparatus for aluminum strip according to claim 4, characterized in that: The anti-deviation plate (19) is fitted with a plurality of vertically arranged wheels (22) along its length along the side wall near the support plate (20). The axes of the plurality of vertically arranged wheels (22) are vertically arranged and are rotatably mounted on the anti-deviation plate (19) around their axes. The upper end face of the support plate (20) and the lower end face of the limiting plate (21) are fitted with a plurality of horizontally arranged wheels (23) along their length along the side wall. The axes of the plurality of horizontally arranged wheels (23) are arranged along the width direction of the rolling frame (1) and are rotatably mounted on the corresponding support plate (20) and limiting plate (21) around their axes. The plurality of vertically arranged wheels (22) and horizontally arranged wheels (23) on the same side are spaced apart.

6. The segmented continuous rolling apparatus for aluminum strip according to claim 1, characterized in that: Lifting seats (24) are provided at both ends of the first rolling roll (5) and both ends of the second rolling roll (6). Both ends of the first rolling roll (5) and both ends of the second rolling roll (6) are rotatably mounted on the corresponding lifting seats (24). Both ends of the uniform force frame (9) are connected to the lifting seats (24) at both ends of the first rolling roll (5) and the second rolling roll (6) respectively. The lifting seats (24) are vertically slidably mounted on the rolling frame (1). A drive assembly (06) for driving the lifting seats (24) to slide vertically is provided between the first roll group (3) and the second roll group (4) in each group of rolling rolls (2).

7. The segmented continuous rolling apparatus for aluminum strip according to claim 6, characterized in that: The drive assembly (06) includes a drive rod (25) disposed between the first roll group (3) and the second roll group (4) in each group of rolling rolls (2) and located on both sides of the rolling frame (1). The drive rod (25) is disposed along the length direction of the rolling frame (1) and has vertically disposed linkage racks (26) at both ends. The drive rod (25) is vertically slidably mounted on the rolling frame (1). The rolling frame (1) is rotatably mounted with a linkage gear (27) that meshes with the corresponding linkage rack (26) and whose axis is disposed along the width direction of the rolling frame (1). The axis of the linkage gear (27) is located on the symmetrical plane of two lifting seats (24) located at the same end and corresponding to each other in the first roll group (3) and the second roll group (4). The two lifting seats (24) located at the same end and corresponding to each other are respectively provided with vertically disposed and facing drive racks (28). Each set of two drive racks (28) is located on both sides of the corresponding linkage gear (27) and meshes with the linkage gear (27).

8. The segmented continuous rolling apparatus for aluminum strip according to claim 1, characterized in that: The first roll group (3) and the second roll group (4) are respectively provided with spraying assemblies (07) that cooperate with them. Each spraying assembly (07) includes a spraying frame (29) arranged vertically and corresponding to the corresponding first rolling roll (5) and second rolling roll (6). The spraying frame (29) is provided with a plurality of spraying arc plates (30) that cooperate with the corresponding first rolling section (7) and second rolling section (8) along its length direction. The axis of the spraying arc plate (30) is arranged along the width direction of the rolling frame (1) and is located close to the corresponding first rolling section (7) and second rolling section (8). One side of the first rolling section (7) and the second rolling section (8); several spray arc plates (30) on each of the spray racks (29) are connected by the same spray pipe (31), and four spray pipes (31) in each group of rolling rolls (2) are connected to the same spray box (32), and the spray box (32) is set on one side of the rolling rack (1); a recycling box (33) is provided below the rolling rack (1) along its length and open at the top, and several groups of spray components (07) are all located within the opening range of the recycling box (33).

9. The segmented continuous rolling apparatus for aluminum strip according to claim 8, characterized in that: The inner wall of the spray arc plate (30) is provided with a cleaning arc plate (34) that cooperates with it and is attached to the outer wall of the corresponding first rolling section (7) and second rolling section (8). A plurality of spray nozzles (35) are arranged in an array on both sides of the cleaning arc plate (34) along its length direction. The plurality of spray nozzles (35) are connected to the corresponding spray arc plate (30). The spray nozzles (35) on both sides of the cleaning arc plate (34) are located on both sides of the corresponding first rolling section (7) and second rolling section (8). The plurality of spray nozzles (35) are inclined and their outlets are located on the side close to the corresponding first rolling section (7) and second rolling section (8).

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