Wide aluminum foil rolling flexible roller surface cleaning system and method

Abstract

The invention belongs to the technical field of cold-rolled aluminum foil production, and particularly relates to a wide aluminum foil rolling flexible roller surface cleaning system and method. The system comprises a swing frame, an upper telescopic scraper set, a lower telescopic scraper set, a fixed support, a hydraulic actuator, an air pressure actuator, a guider and an intelligent control unit, the swing frame is hinged to the hydraulic actuator, the two ends of the swing frame are fixedly connected with the fixed support, and the upper telescopic scraper set and the lower telescopic scraper set are fixedly arranged in the swing frame; the upper telescopic scraper set and the lower telescopic scraper set are respectively connected with an air pressure actuator, and the intelligent control unit is respectively connected with the hydraulic actuator and the air pressure actuator. The hydraulic actuator drives the swing frame to conduct self-adaptive angle adjustment, the air pressure actuator controls the upper telescopic scraper set and the lower telescopic scraper set to stretch out to make contact with the roller face, and therefore two-stage gradient cleaning of aluminum skimming stripping and oil film precise control of the roller face of the supporting roller is achieved, the oil stain defect of the rolled aluminum foil surface is remarkably reduced, and the service life of the aluminum foil is prolonged. The finished aluminum foil surface quality is improved.

Description

Technical Field

[0001] This invention belongs to the field of cold-rolled aluminum foil production technology, and specifically relates to a cleaning system and method for the flexible roller surface of wide-width aluminum foil rolling. Background Technology

[0002] In the high-speed rolling process of wide-width aluminum foil, special rolling oil needs to be continuously sprayed into the roll gap and roll body area to ensure the stability of the rolling process and the surface quality of the finished aluminum foil. This process mainly achieves two functions: first, it provides lubrication between the rolls, reducing rolling force and the coefficient of friction; second, it effectively cools the high-speed rotating rolls, preventing poor sheet shape caused by thermal expansion of the roll surface. However, because the rolling oil itself has a certain viscosity, excessive oil tends to adhere to it during the high-speed rotation of the rolls and is carried into the surface of the aluminum foil strip. This oil film migration phenomenon leads to uneven surface tension distribution of the strip, which in turn causes oil spot defects, specifically manifested as a significant decrease in local brightness of the aluminum foil surface, an increase in the number of pinholes, and other quality problems, seriously deteriorating the optical performance and reliability of the final product.

[0003] Currently, widely used aluminum foil rolling mills are typically equipped with single-scraper type cleaning rolls to remove residual rolling oil and aluminum powder mixtures from the support roll surface. However, this type of cleaning roll has significant limitations: firstly, its scraper device lacks online angle adjustment, making it impossible to dynamically optimize the scraping posture based on changes in the actual support roll diameter or different rolling speeds, resulting in unstable cleaning performance; secondly, the system lacks a real-time wear compensation mechanism, and as the scraper and support roll continue to wear, the contact pressure between them gradually decreases, significantly reducing cleaning efficiency and causing the residual oil film to thicken. These problems directly affect the cleanliness and uniformity of the aluminum foil surface, becoming a key technical bottleneck restricting the production of high-quality aluminum foil. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a cleaning system and method for the flexible roller surface of wide-width aluminum foil rolling. This system monitors the operating parameters of the support roller in real time through an intelligent control unit, and drives the swing frame to perform adaptive angle adjustment through a hydraulic actuator. Two sets of pneumatic actuators control the upper and lower telescopic scraper groups to extend radially until they contact the roller surface, thereby achieving a two-stage gradient cleaning of aluminum chip removal and oil film precision control on the support roller surface. This improves the uniformity of the oil film on the support roller surface, significantly reduces oil stain defects on the surface of the rolled aluminum foil, and improves the surface quality of the finished aluminum foil.

[0005] The technical solution of this invention is as follows: a wide-width aluminum foil rolling flexible roller surface cleaning system, comprising a swing frame, an upper telescopic scraper assembly, a lower telescopic scraper assembly, a fixed support, a hydraulic actuator, a pneumatic actuator, a guide, and an intelligent control unit. The swing frame is hinged to the hydraulic actuator, and fixed supports are fixedly connected to both ends of the swing frame. The upper telescopic scraper assembly and the lower telescopic scraper assembly are fixedly arranged inside the swing frame. The upper telescopic scraper assembly and the lower telescopic scraper assembly are respectively connected to the pneumatic actuator, which is fixedly connected to the swing frame. The intelligent control unit is connected to both the hydraulic actuator and the pneumatic actuator. The intelligent control unit controls the hydraulic actuator to perform adaptive angle adjustment through the swing frame according to the real-time operating parameters of the support roller, and controls the pneumatic actuator to adjust the position of the upper telescopic scraper assembly and the lower telescopic scraper assembly relative to the support roller surface.

[0006] The upper and lower telescopic scraper assemblies have the same structure and are symmetrically arranged, including a pressure plate, a scraper, and a scraper seat. The scraper is fixed to the scraper seat with screws. A pressure plate is provided on the outside of the scraper. The scraper of the upper telescopic scraper assembly has an acute angle ranging from 20° to 35°, and the scraper of the lower telescopic scraper assembly has an acute angle ranging from 45° to 55°.

[0007] A self-lubricating copper sleeve is installed inside the fixed support.

[0008] The hydraulic actuator includes two identical hydraulic cylinders, one end of which is hinged to the swing frame and the other end is hinged to the hydraulic cylinder support. The hydraulic cylinder support is fixed to the rolling mill stand by bolts. The two identical hydraulic cylinders extend and retract synchronously when working.

[0009] The pneumatic actuator consists of two groups of four cylinders each, with each group of four cylinders extending and retracting synchronously. They are fixed to the upper and lower telescopic scraper groups respectively via pins.

[0010] The guide is provided in six parts, divided into two groups, including guide rods and guide seats. The guide seats are embedded with self-lubricating copper sleeves and are fixed to the swing frame by bolts. The guide rods of each group of guides are fixed to the scraper seats of the upper telescopic scraper group and the lower telescopic scraper group by screws respectively.

[0011] The pneumatic actuator has a built-in pressure sensor. The intelligent control unit controls the pneumatic actuator to drive the upper telescopic scraper group and the lower telescopic scraper group respectively to compensate for scraper wear and support roller wear based on the data fed back by the pressure sensor.

[0012] The intelligent control unit includes an execution drive layer, an effect feedback layer, a working condition perception layer, and a decision control layer. The working condition perception layer collects the working condition of the support roller in real time through multi-source sensors. The decision control layer controls the execution drive layer to drive the hardware response. Finally, the effect feedback layer verifies the effect and realizes a closed loop.

[0013] A method for cleaning the surface of a flexible roll for wide aluminum foil rolling, using a cleaning system for the surface of a flexible roll for wide aluminum foil rolling as described above, includes the following steps: S1: The intelligent control unit monitors the working parameters of the support roller in real time, including the roller diameter D, rotation direction ω and speed n. When the support roller is detected to rotate clockwise, the hydraulic actuator drives the piston rod to extend, causing the swing frame to rotate counterclockwise. Based on the roller diameter D and rotation direction ω, the scraper angle of attack is calculated online and adaptively adjusted. S2: Subsequently, the pneumatic actuator drives the upper and lower telescopic scraper groups to extend radially to the contact point on the roller surface according to the roller diameter D and the rotation speed n, and implements pressure-speed coupling control. In high-speed conditions n≥800rpm, the contact pressure is reduced by 30%-40% to suppress turbulent vibration and wear, while in low-speed conditions n≤200rpm, the pressure is increased by 20%-30% to enhance cleaning efficiency. S3: Finally, perform two-stage gradient scraping: the lower telescopic scraper group maintains a 45°-55° angle of attack to stably remove aluminum chips and base oil film, while the upper telescopic scraper group uses a 20°-35° acute angle to deeply peel off residual oil film and micron-sized aluminum chips by increasing shear stress by 25%.

[0014] The technical effects of this invention are as follows: 1. This invention monitors the working parameters of the support roller in real time through an intelligent control unit, and drives the swing frame to perform adaptive angle adjustment through a hydraulic actuator; two sets of pneumatic actuators control the upper and lower telescopic scraper groups to extend radially until they contact the roller surface, thereby achieving a two-stage gradient cleaning of aluminum chip removal and oil film precision control on the support roller surface, improving the uniformity of the oil film on the support roller surface, significantly reducing oil stain defects on the surface of the rolled aluminum foil, and improving the surface quality of the finished aluminum foil; 2. This invention adopts a two-stage gradient scraping mechanism, with the scraper angle of the lower telescopic scraper group maintaining a stable angle of attack of 45°-55° to remove aluminum chips and basic oil film, and the scraper angle of the upper telescopic scraper group adopting an acute angle of 20°-35°, achieving a two-stage cleaning from "aluminum chip removal to oil film precision control".

[0015] The following will provide further explanation in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a wide-width aluminum foil rolling flexible roller surface cleaning system according to the present invention.

[0017] Figure 2This is a schematic diagram of the main structure of a wide-width aluminum foil rolling flexible roller surface cleaning system according to the present invention.

[0018] Figure 3 This is the present invention. Figure 2 Schematic diagram of the AA-direction structure.

[0019] Figure 4 This is a schematic diagram of the invention when the support roller operates clockwise.

[0020] Figure 5 This is a flowchart of a method for cleaning the flexible roller surface of wide aluminum foil rolling according to the present invention.

[0021] Reference numerals in the attached drawings: 1-Swing frame; 2-Upper telescopic scraper assembly; 3-Lower telescopic scraper assembly; 4-Fixed support; 5-Hydraulic actuator; 6-Pneumatic actuator; 7-Guide; 8-Pressure plate; 9-Scraper; 10-Scraper seat. Detailed Implementation Example 1

[0022] like Figures 1-4 As shown, a wide-width aluminum foil rolling flexible roller surface cleaning system includes a swing frame 1, an upper telescopic scraper assembly 2, a lower telescopic scraper assembly 3, a fixed support 4, a hydraulic actuator 5, a pneumatic actuator 6, a guide 7, and an intelligent control unit. The swing frame 1 is hinged to the hydraulic actuator 5. Fixed supports 4 are fixedly connected to both ends of the swing frame 1. The upper telescopic scraper assembly 2 and the lower telescopic scraper assembly 3 are fixedly installed inside the swing frame 1. The upper telescopic scraper assembly 2 and the lower telescopic scraper assembly 3 are respectively connected to the pneumatic actuator 6. The pneumatic actuator 6 is fixedly connected to the swing frame 1. The intelligent control unit is connected to both the hydraulic actuator 5 and the pneumatic actuator 6. According to the real-time operating parameters of the support roller, the intelligent control unit controls the hydraulic actuator 5 to perform adaptive angle adjustment through the swing frame 1, and controls the pneumatic actuator 6 to adjust the position of the upper telescopic scraper assembly 2 and the lower telescopic scraper assembly 3 relative to the support roller surface.

[0023] In use, the intelligent control unit monitors the operating parameters of the support roller in real time, including the roller diameter D, rotation direction ω, and rotational speed n. When clockwise rotation of the support roller is detected, the hydraulic actuator 5 drives the piston rod to extend, causing the swing frame 1 to rotate counterclockwise. Based on the roller diameter D and rotation direction ω, the scraper angle of attack is calculated online and adaptively adjusted. Subsequently, the pneumatic actuator 6 drives the upper telescopic scraper group 2 and the lower telescopic scraper group 3 to extend radially to the roller surface contact point according to the roller diameter D and rotational speed n, and implements pressure-speed coupling control. In high-speed conditions (n≥800rpm), the contact pressure is reduced by 30%-40% to suppress turbulent vibration and wear. In low-speed conditions (n≤200rpm), the pressure is increased by 20%-30% to enhance cleaning efficiency. Finally, a two-stage gradient scraping is performed: the scraper 9 of the lower telescopic scraper group 3 maintains an angle of attack of 45°-55° to stably remove aluminum chips and basic oil film, while the scraper 9 of the upper telescopic scraper group 2 adopts an acute angle of 20°-35° to deeply peel off residual oil film and micron-sized aluminum chips by increasing shear stress by 25%. This invention monitors the operating parameters of the support roller in real time through an intelligent control unit, and drives the swing frame to perform adaptive angle adjustment through a hydraulic actuator. Two sets of pneumatic actuators control the upper and lower telescopic scraper groups to extend radially until they contact the roller surface. When the roller speed reaches the set value and the pressure sensor feedback pressure reaches the preset threshold, the scraper assembly enters a constant pressure contact working state. If the roller and scraper are worn, the scraper assembly feeds to complete the contact pressure compensation, thereby realizing a two-stage gradient cleaning of aluminum chip removal and oil film precision control on the support roller surface, improving the uniformity of the oil film on the support roller surface, significantly reducing oil stain defects on the surface of the rolled aluminum foil, and improving the surface quality of the finished aluminum foil. Example 2

[0024] Based on Embodiment 1, in this embodiment, preferably, the upper telescopic scraper assembly 2 and the lower telescopic scraper assembly 3 have the same structure and are arranged symmetrically, including a pressure plate 8, a scraper 9 and a scraper seat 10. The scraper 9 is fixed to the scraper seat 10 by screws. The pressure plate 8 is provided on the outside of the scraper 9. The angle of the scraper 9 of the upper telescopic scraper assembly 2 is an acute angle, ranging from 20° to 35°, and the angle of the scraper 9 of the lower telescopic scraper assembly 3 is an acute angle, ranging from 45° to 55°.

[0025] When in use, this invention employs a dual-level gradient scraping mechanism. The angle of the scraper 9 in the upper telescopic scraper group 2 is an acute angle, ranging from 20° to 35°, and the angle of the scraper 9 in the lower telescopic scraper group 3 is an acute angle, ranging from 45° to 55°. This achieves dual-level cleaning from "aluminum chip removal to oil film precision control." The acute angle design increases shear stress by ≥25%, and the critical angle suppresses roller surface vibration. Example 3

[0026] Based on Embodiments 1 and 2, in this embodiment, preferably, a self-lubricating copper sleeve is installed inside the fixed support 4.

[0027] When this invention is used, a self-lubricating copper sleeve is installed inside the fixed support 4. The swing frame 1 forms a rotary pair with the fixed support 4 through double-sided φ80mm high-rigidity hinge bosses. The self-lubricating copper sleeve installed inside the fixed support 4 adapts to the rolling oil environment and reduces the frequency of maintenance. Example 4

[0028] Based on Embodiment 1 or Embodiment 3, in this embodiment, preferably, the hydraulic actuator 5 includes two identical hydraulic cylinders, one end of which is hinged to the swing frame 1 and the other end is hinged to the hydraulic cylinder support. The hydraulic cylinder support is fixed to the rolling mill stand by bolts, and the two identical hydraulic cylinders extend and retract synchronously when working.

[0029] When the present invention is used, the swing frame 1 is hinged to the hydraulic actuator 5, and the hydraulic actuator 5 controls the upper telescopic scraper group 2 and the lower telescopic scraper group 3 to rotate synchronously through the swing frame 1. Example 5

[0030] Based on Embodiment 1 or Embodiment 4, in this embodiment, preferably, the pneumatic actuator 6 consists of two groups of four cylinders each, with each group of four cylinders extending and retracting synchronously, and is fixed to the upper telescopic scraper group 2 and the lower telescopic scraper group 3 respectively by pins.

[0031] When this invention is used, based on the real-time operating parameters of the support roller, such as roller diameter, direction of rotation, and rotation speed, the intelligent control unit controls the pneumatic actuator 6 to drive the upper telescopic scraper group 2 and the lower telescopic scraper group 3 to perform adaptive pressure adjustment. The pneumatic actuator controls the contact pressure in segments according to the rotation speed n, with a 30%-40% reduction in pressure at high speed to reduce vibration and a 20%-30% increase in pressure at low speed to enhance cleaning. Example 6

[0032] Based on Embodiment 1 or Embodiment 5, in this embodiment, preferably, six guides 7 are provided, divided into two groups, one above the other, including guide rods and guide seats. The guide seats are embedded with self-lubricating copper sleeves and are fixed to the swing frame 1 by bolts. The guide rods of each group of guides 7 are fixed to the scraper seats 10 of the upper telescopic scraper group 2 and the lower telescopic scraper group 3 by screws respectively.

[0033] When in use, this invention is driven by a four-point pneumatic cylinder and a precision linear pair is formed by three guide columns and a self-lubricating copper sleeve guide seat; the swing frame is synchronously driven by two hydraulic cylinders to make adaptive swing; the upper and lower independent pneumatic actuators (each with 4 cylinders) control the radial feed of the scraper; the wide roll surface is eliminated by the "four-point drive-three-point guide" topology (4 cylinders / 3 guide columns). Example 7

[0034] Based on Embodiment 1 or Embodiment 6, in this embodiment, preferably, the pneumatic actuator 6 has a built-in pressure sensor, and the intelligent control unit controls the pneumatic actuator 6 to drive the upper telescopic scraper group 2 and the lower telescopic scraper group 3 respectively to compensate for scraper wear and support roller wear through the data fed back by the pressure sensor.

[0035] In use, the intelligent control unit monitors the wear amount δ of the support roller in real time via a laser displacement meter and monitors the contact pressure between the scraper and the support roller surface in real time via a pressure sensor. The cylinder outputs force in real time according to F=K·(P0·A +δ) (F: contact pressure / N; K: system rigidity coefficient, obtained by experiment; P0: target contact pressure / MPa, set to 2.5N / mm in this system; A: effective working area of ​​the scraper / mm). 2 ; δ: Real-time wear compensation amount / μm) Dynamically adjusted to maintain constant pressure. Example 8

[0036] Based on Example 1 or Example 7, in this example, as Figure 5 As shown, preferably, the intelligent control unit includes an execution drive layer, an effect feedback layer, a working condition perception layer, and a decision control layer. The working condition perception layer collects the working condition of the support roller in real time through multi-source sensors. The decision control layer controls the execution drive layer to drive the hardware response. Finally, the effect feedback layer verifies the effect and realizes a closed loop. Example 9

[0037] A method for cleaning the surface of a flexible roll for wide aluminum foil rolling, using a cleaning system for the surface of a flexible roll for wide aluminum foil rolling as described above, includes the following steps: S1: The intelligent control unit monitors the working parameters of the support roller in real time, including the roller diameter D, rotation direction ω and speed n. When the support roller is detected to rotate clockwise, the hydraulic actuator 5 drives the piston rod to extend, causing the swing frame 1 to rotate counterclockwise. Based on the roller diameter D and rotation direction ω, the scraper angle of attack is calculated online and adaptively adjusted. S2: Subsequently, the pneumatic actuator 6 drives the upper telescopic scraper group 2 and the lower telescopic scraper group 3 to extend radially to the contact point on the roller surface according to the roller diameter D and the rotation speed n, and implements pressure-speed coupling control. In high-speed operation with n≥800rpm, the contact pressure is reduced by 30%-40% to suppress turbulent vibration and wear. In low-speed operation with n≤200rpm, the pressure is increased by 20%-30% to enhance cleaning efficiency. S3: Finally, perform dual-gradient scraping: the scraper 9 of the lower telescopic scraper group 3 maintains an angle of attack of 45°-55° to stably remove aluminum chips and base oil film, while the scraper 9 of the upper telescopic scraper group 2 adopts an acute angle of 20°-35° to deeply peel off residual oil film and micron-sized aluminum chips by increasing shear stress by 25%. Example 10

[0038] The cleaning of the flexible roll surface of wide aluminum foil rolling is performed using a cleaning system for wide aluminum foil rolling as described in Example 1 and a cleaning method for wide aluminum foil rolling as described in Example 9. The specific process is as follows: execution drive layer, effect feedback layer, working condition perception layer, and decision control layer. During the rolling production, the intelligent control unit of this system realizes four-level closed-loop control with a 50ms cycle. The working condition perception layer collects the working condition of the support roll in real time through multi-source sensors (roll diameter D: ±0.01mm laser ranging; rotation speed n: 0.1rpm encoder; wear amount δ: accuracy ±5μm; contact pressure: accuracy ±0.5%). The decision control layer executes three-channel intelligent calculations simultaneously: (1) Angle of attack adaptation: calculate the spatial pose of the scraper based on D and rotation speed direction ω (downward scraper 45°-55° anti-vibration angle / upward scraper 20°-35° acute angle); (2) Pressure-rotation coupling: dynamically adjust the contact pressure according to the n value (pressure reduction of 30% when n≥800rpm / pressure increase of 30% when n≤200rpm); (3) Wear compensation: according to the formula F=K·(P0·A + δ). Output compensation force (K=1.2-1.5, P0=2.5N / mm); then execute the drive layer drive hardware response: hydraulic actuator 5 positions the swing frame 1, four-point pneumatic actuator 6 pushes the upper telescopic scraper group 2 and the lower telescopic scraper group 3 radially feed (repeated positioning ±0.05mm), three-point guide column suppresses off-center load (pressure distribution non-uniformity ≤8%); finally, the effect feedback layer verifies the effect and closes the loop: oil film thickness (±0.5μm online thickness measurement) flows back to the pressure control module; vibration spectrum (Δ amplitude ≤5μm accelerometer) is fed back to the angle of attack adjustment module; wear compensation amount updates δ value in real time, this intelligent control unit continuously iterates at a refresh rate of 20Hz to ensure that the wide roll surface (Φ800-1200mm) achieves constant pressure scraping (2.5±0.1N / mm) at a rolling speed of 50-1200m / min, and the oil film uniformity reaches ±0.5μm.

[0039] 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 changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A cleaning system for the flexible roller surface of wide-width aluminum foil rolling, characterized in that: The device includes a swing frame (1), an upper telescopic scraper assembly (2), a lower telescopic scraper assembly (3), a fixed support (4), a hydraulic actuator (5), a pneumatic actuator (6), a guide (7), and an intelligent control unit. The swing frame (1) is hinged to the hydraulic actuator (5). Fixed supports (4) are fixedly connected to both ends of the swing frame (1). The upper telescopic scraper assembly (2) and the lower telescopic scraper assembly (3) are fixedly installed inside the swing frame (1). The upper telescopic scraper assembly (2) and the lower telescopic scraper assembly (3) are respectively connected to the pneumatic actuator (6). The pneumatic actuator (6) is fixedly connected to the swing frame (1). The intelligent control unit is connected to the hydraulic actuator (5) and the pneumatic actuator (6) respectively. The intelligent control unit controls the hydraulic actuator (5) to perform adaptive angle adjustment through the swing frame (1) according to the real-time working parameters of the support roller, and controls the pneumatic actuator (6) to adjust the position of the upper telescopic scraper assembly (2) and the lower telescopic scraper assembly (3) relative to the support roller surface.

2. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: The upper telescopic scraper assembly (2) and the lower telescopic scraper assembly (3) have the same structure and are arranged symmetrically. They include a pressure plate (8), a scraper (9) and a scraper seat (10). The scraper (9) is fixed to the scraper seat (10) by screws. The pressure plate (8) is provided on the outside of the scraper (9). The angle of the scraper (9) of the upper telescopic scraper assembly (2) is an acute angle, ranging from 20° to 35°. The angle of the scraper (9) of the lower telescopic scraper assembly (3) is an acute angle, ranging from 45° to 55°.

3. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: A self-lubricating copper sleeve is installed inside the fixed support (4).

4. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: The hydraulic actuator (5) includes two identical hydraulic cylinders. One end of the hydraulic cylinder is hinged to the swing frame (1), and the other end is hinged to the hydraulic cylinder support. The hydraulic cylinder support is fixed to the rolling mill stand by bolts. The two identical hydraulic cylinders extend and retract synchronously when working.

5. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: The pneumatic actuator (6) consists of two groups of four cylinders each, with each group of four cylinders extending and retracting synchronously. They are fixed to the upper telescopic scraper group (2) and the lower telescopic scraper group (3) respectively by pins.

6. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 2, characterized in that: The guide (7) is provided in six parts, divided into two groups, including guide rods and guide seats. The guide seats are embedded with self-lubricating copper sleeves and are fixed to the swing frame (1) by bolts. The guide rods of each group of guides (7) are fixed to the scraper seats (10) of the upper telescopic scraper group (2) and the lower telescopic scraper group (3) by screws respectively.

7. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: The pneumatic actuator (6) has a built-in pressure sensor. The intelligent control unit controls the pneumatic actuator (6) to drive the upper telescopic scraper group (2) and the lower telescopic scraper group (3) respectively to compensate for scraper wear and support roller wear by using the data fed back by the pressure sensor.

8. The wide-width aluminum foil rolling flexible roll surface cleaning system according to claim 1, characterized in that: The intelligent control unit includes an execution drive layer, an effect feedback layer, a working condition perception layer, and a decision control layer. The working condition perception layer collects the working condition of the support roller in real time through multi-source sensors. The decision control layer controls the execution drive layer to drive the hardware response. Finally, the effect feedback layer verifies the effect and realizes a closed loop.

9. A method for cleaning the surface of a flexible roller in wide-width aluminum foil rolling, using the cleaning system for the surface of a flexible roller in wide-width aluminum foil rolling as described in claim 1, characterized in that: Includes the following steps: S1: The intelligent control unit monitors the working parameters of the support roller in real time, including the roller diameter D, rotation direction ω and speed n. When the support roller is detected to rotate clockwise, the hydraulic actuator (5) drives the piston rod to extend, causing the swing frame (1) to rotate counterclockwise. Based on the roller diameter D and rotation direction ω, the scraper angle of attack is calculated online and adjusted adaptively. S2: Subsequently, the pneumatic actuator (6) drives the upper telescopic scraper group (2) and the lower telescopic scraper group (3) to extend radially to the contact point of the roller surface according to the roller diameter D and the rotation speed n, and implements pressure-speed coupling control. In high-speed operation (n≥800rpm), the contact pressure is reduced by 30%-40% to suppress turbulent vibration and wear, while in low-speed operation (n≤200rpm), the pressure is increased by 20%-30% to enhance cleaning efficiency. S3: Finally, perform two-stage gradient scraping: the angle of the scraper (9) of the lower telescopic scraper group (3) is maintained at 45°-55° to stably remove aluminum chips and base oil film, and the angle of the scraper (9) of the upper telescopic scraper group (2) is 20°-35° acute angle, and the residual oil film and micron-sized aluminum chips are peeled off by increasing the shear stress by 25%.

Images