Aluminum foil mill outlet side active oil removal device and oil removal method

Abstract

The present application relates to the technical field of aluminum foil processing, and discloses an active oil removal device and method for an outlet side of an aluminum foil rolling mill, which comprises a driving roller, both ends of the driving roller are rotationally provided with mounting plates and connecting plates, a driver for driving the driving roller to rotate is arranged on the mounting plate, a fixing shaft is arranged on the connecting plate, a cleaning roller capable of being driven by the driving roller is rotationally arranged on the fixing shaft, the driving roller and the cleaning roller are arranged in parallel, and cleaning holes are arranged on the circumferential side of the cleaning roller in a uniform distribution. The driving roller and the cleaning roller separate the top of the frame from the outlet side of the strip, the outlet side of the working roller is cleaned in a manner of active wiping and negative pressure adsorption, the oil mist and oil droplets on the upper side of the outlet side of the strip are adsorbed and cleaned, the strip is prevented from having oil defects, the quality of the strip can be improved, and whether the working roller and the supporting roller of the rolling mill are parallel can be detected, the device has multiple functions and is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum foil processing, in particular to an active oil removal device and method for the outlet side of an aluminum foil rolling mill. BACKGROUND

[0002] During the aluminum foil rolling process, a large amount of heat is generated in the rolling area due to severe plastic deformation and friction, and process cooling oil based on 85# kerosene is used for forced cooling. The cooling system delivers process oil to the spray beam through a clean oil pump (working pressure 0.45-0.55 MPa) to uniformly spray the upper and lower surfaces of the strip at the inlet side, the work rolls and the backup rolls, achieving comprehensive thermal management of the rolling system.

[0003] In the current production process, the strip passes through the rolling area at a high linear speed of 600-1000 meters / minute and is coiled. To ensure the yield of subsequent printing / compounding and other processes, the coiling machine requires that the upper and lower surfaces of the strip at the outlet section be absolutely free of oil residue. However, there are two major oil contamination risks during the rolling process: 1. After the high-temperature process oil gasifies, it condenses into droplets on the surface of the mill top frame, which then falls and contaminates the upper surface of the strip at the outlet side; 2. The high-speed rotating upper backup roll centrifugally throws off the residual oil on its surface, directly splashing onto the upper surface of the strip at the outlet section, thereby contaminating the strip at the outlet side. The above-mentioned contamination causes defects on the surface of the coiled aluminum foil, reducing product quality and affecting the subsequent printing process.

[0004] The existing oil removal methods all involve installing a deflector at the outlet side of the mill to guide the condensation and dripping oil droplets away from the strip; for example, patent number CN221269306U discloses an oil removal device for the surface of the strip of an aluminum foil rolling mill, which mainly passively collects and guides the condensation and dripping oil droplets through a splash-proof plate and a collection tank. However, this passive oil droplet guiding method has low oil removal efficiency, and high-temperature oil gas also condenses at the bottom of the collection tank and air pipe, thereby dripping onto the strip and contaminating it.

[0005] In addition, the parallelism between the upper work roll and the upper backup roll is crucial in a four-high rolling mill. If they are not parallel, not only does this defeat the original design intention of the backup roll uniformly supporting the work roll, but also the uneven pressure between the rolls is directly transmitted to the rolling force, causing uneven bending deformation of the work roll in the rolling direction, thereby causing plate shape defects such as wave shape (edge wave, middle wave), warping, and buckling on the strip, which seriously affects product quality. Therefore, it is usually necessary to detect whether the work roll and the backup roll are parallel. Since the mill is installed with a splash guard and other structures at the outlet side, detection is usually performed during installation of the mill. If detection is to be performed after a period of rolling, the splash guard and other structures need to be removed, and after detection is completed, the splash guard and other structures need to be reinstalled, which is cumbersome, time-consuming, and inefficient.

[0006] In summary, the present application provides an aluminum foil rolling mill outlet side active oil removal device and oil removal method, which removes the oil mist, dripping and flung oil drops on the outlet side through active wiping and negative pressure extraction, thereby ensuring the quality of the outlet side strip and breaking through the limitations of the prior art. SUMMARY

[0007] The technical problem to be solved by the present application is to overcome the existing defects and provide an aluminum foil rolling mill outlet side active oil removal device and oil removal method, which separates the arch top from the outlet side strip through driving rollers and cleaning rollers, and uses active wiping and negative pressure adsorption to clean the outlet side of the work roller and clean the oil mist and oil drops on the upper side of the outlet side strip, thereby avoiding oil defects on the strip, improving the quality of the strip, detecting whether the work roller and the support roller of the rolling mill are parallel, being versatile, simple to operate, saving time, improving work efficiency, being easy to use, and effectively solving the problems in the background art.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an aluminum foil rolling mill outlet side active oil removal device, comprising a driving roller, both ends of the driving roller are rotatably provided with a mounting plate and a connecting plate, the mounting plate is provided with a drive for driving the driving roller to rotate, the connecting plate is provided with a fixed shaft, the fixed shaft is rotatably provided with a cleaning roller which can be driven by the driving roller, the driving roller and the cleaning roller are arranged in parallel, the peripheral side surface of the cleaning roller is provided with uniformly distributed cleaning holes, the fixed shaft is a hollow structure with one end open, and the peripheral side surface of the fixed shaft inside the cleaning roller is provided with uniformly distributed negative pressure holes, and the open end of the fixed shaft is connected with an external negative pressure device, the bottom of the mounting plate is rotatably provided with an extension piece for controlling the rotation of the connecting plate around the central axis of the driving roller, and a detection ring is movably sleeved on the fixed shaft for detecting whether the work roller and the support roller of the rolling mill are parallel.

[0009] As a preferred technical scheme of the present application, the drive comprises a servo motor mounted on the mounting plate, a main pulley is provided on the output shaft of the servo motor, a secondary pulley is provided on one end of the driving roller corresponding to the main pulley, and the main pulley and the secondary pulley are connected by a belt transmission.

[0010] As a preferred technical scheme of the present application, the extension piece is a pneumatic cylinder, the fixed end of the pneumatic cylinder is rotatably arranged at the bottom of the mounting plate, and the extension end of the pneumatic cylinder is rotatably arranged on a push rod at the bottom of the connecting plate.

[0011] As a preferred technical scheme of the present application, the connecting plate is provided with a magnet capable of magnetically adsorbing the detection ring.

[0012] As a preferred technical scheme of the present application, the detection ring comprises an inner ring, an annular buffer pad is arranged on the outer circumferential side of the inner ring, a pressure sensor is arranged in the groove of the annular buffer pad, an outer ring is arranged on the outer circumferential side of the annular buffer pad, and a polyurethane ring is arranged on the outer circumferential side of the outer ring.

[0013] As a preferred technical scheme of the present application, the cleaning roller is a polyurethane roller, and annular grooves with key grooves are arranged at both ends of the cleaning roller for mounting the inner ring, and the inner circumferential side of the inner ring is provided with clamping keys corresponding to the key grooves.

[0014] An oil removal method of an active oil removal device on the outlet side of an aluminum foil rolling mill comprises the following steps:

[0015] S1, when the mounting plate is fixedly installed, the cleaning roller is kept in contact with the upper work roller of the rolling mill and is kept parallel to the upper work roller, and the open end of the fixed shaft is connected with the external negative pressure device through the connecting pipe;

[0016] S2, the servo motor is controlled to work, the servo motor drives the main pulley to work, the main pulley drives the secondary pulley to rotate through the belt, the secondary pulley drives the driving roller to rotate, the driving roller drives the cleaning roller to rotate on the fixed shaft under the action of friction, the rotating cleaning roller wipes and cleans the circumferential side surface of the upper work roller, and the process oil on the surface of the cleaning roller is sequentially extracted by the external negative pressure device through the cleaning hole and the negative pressure hole and the fixed shaft under the action of negative pressure;

[0017] S3, under the action of the negative pressure device, the oil gas between the strip on the outlet side of the rolling mill and the cleaning roller is extracted by the external negative pressure device through the cleaning hole and the negative pressure hole and the fixed shaft, so that the strip and the cleaning roller are in a negative pressure environment, and the oil gas on the outlet side is prevented from adhering to the strip.

[0018] As a preferred technical scheme of the present application, the driving roller and the cleaning roller form a partition, the top of the frame of the rolling mill is partitioned from the outlet of the rolling mill, and the oil droplets condensed on the top of the frame of the rolling mill can only fall on the driving roller or the cleaning roller, and in the rotating process of the driving roller or the cleaning roller, the circumferential side surface of the driving roller is cleaned by the cleaning roller under the action of negative pressure, so that the oil droplets on the driving roller are removed.

[0019] As a preferred technical scheme of the present application, after the strip is rolled, the servo motor is controlled to stop working, the inner ring is sleeved on the annular groove, the servo motor is controlled to work again, the cleaning roller rotates one circle, and the cleaning roller drives the detection ring to rotate one circle. In this process, the work roller of the rolling mill extrudes the outer ring through the polyurethane ring, the outer ring extrudes the pressure sensor, the maximum value of the pressure sensor is recorded, F 左1 and F 右1 are obtained, ΔF 工作辊 =∣F 左1 -F 右1 ∣, and when ΔF工作辊 If the value of Delta F is within the error range, it indicates that the work roll is parallel to the cleaning roll, otherwise, if the value of Delta F is not within the error range, it indicates that the work roll is not parallel to the cleaning roll. 工作辊

[0020] Then the control servo motor stops working, and the control cylinder is elongated, the cylinder pushes the connecting plate to rotate around the central axis of the driving roll, the connecting plate drives the cleaning roll to rotate, and the cleaning roll is in contact with the upper support roll of the rolling mill; the control servo motor is reversely rotated to make the cleaning roll rotate reversely for one circle, in this process, the support roll of the rolling mill extrudes the outer ring through the polyurethane ring, the outer ring extrusion pressure sensor, the maximum value of the pressure sensor is recorded, and F 左2 and F 右2 are obtained, Delta F 支撑辊 =|F 左2 -F 右2 |, if the value of Delta F 支撑辊 is within the error range, it indicates that the support roll is parallel to the cleaning roll, otherwise, if the value of Delta F 支撑辊 is not within the error range, it indicates that the support roll is not parallel to the cleaning roll; when the work roll and the support roll are both parallel to the cleaning roll, it indicates that the support roll and the work roll are parallel, otherwise, if only one of the work roll and the support roll is parallel to the cleaning roll, it indicates that the support roll and the work roll are not parallel.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. The active oil removal device and oil removal method at the outlet side of the aluminum foil rolling mill provided by the present application, the external negative pressure device makes the inside of the cleaning roll in a negative pressure state through the fixed shaft with a negative pressure hole, so that the cleaning roll can make the upper space of the strip at the outlet side of the rolling mill in a negative pressure environment through the cleaning hole, thereby avoiding the oil mist from gathering on the upper surface of the strip at the outlet side.

[0023] 2. The active oil removal device and oil removal method at the outlet side of the aluminum foil rolling mill provided by the present application, the rotating cleaning roll can wipe and clean the work roll, and under the action of negative pressure, oil drops on the cleaning roll and the work roll can be extracted in real time, thereby ensuring the cleaning effect of the cleaning roll on the work roll.

[0024] 3. The active oil removal device and oil removal method at the outlet side of the aluminum foil rolling mill provided by the present application, the driving roll and the cleaning roll form a partition, which separates the top of the frame of the rolling mill from the outlet of the rolling mill, so that the oil drops condensed on the top of the frame of the rolling mill can only fall on the driving roll or the cleaning roll, and in the rotating process of the driving roll or the cleaning roll, the cleaning roll performs negative pressure extraction cleaning on the peripheral surface of the driving roll, thereby removing the oil drops on the driving roll.

[0025] ​4. The active oil removal device and method at the exit side of the aluminum foil rolling mill of the present application, when the detection ring is installed at both ends of the cleaning roller, the value detected by the pressure sensor at both ends can be used to determine whether the work roller is parallel to the cleaning roller and whether the support roller is parallel to the cleaning roller, thereby determining whether the support roller and the work roller are parallel.

[0026] 5. The active oil removal device and method at the exit side of the aluminum foil rolling mill of the present application, the arch top is separated from the exit side strip by the driving roller and the cleaning roller, and the work roller exit side is cleaned by active wiping and negative pressure adsorption, and the oil mist and oil droplets on the upper side of the exit side strip are cleaned, avoiding oil defects on the strip, improving the quality of the strip, and detecting whether the work roller and the support roller of the rolling mill are parallel, with multiple functions, simple operation, time saving, improved work efficiency, and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the present application;

[0028] Figure 2 is a structural schematic diagram of the fixed shaft in the present application;

[0029] Figure 3 is a structural schematic diagram of the detection ring in the present application;

[0030] Figure 4 is a structural schematic diagram of the present application in use;

[0031] Figure 5 is a front view structural schematic diagram. Figure 4

[0032] In the figure: 1 mounting plate, 2 driving roller, 21 secondary pulley, 3 fixed shaft, 31 negative pressure hole, 4 cleaning roller, 41 cleaning hole, 42 annular groove, 5 servo motor, 51 main pulley, 52 belt, 6 connecting plate, 61 magnet, 7 air cylinder, 8 inner ring, 81 annular buffer pad, 82 pressure sensor, 83 outer ring, 84 polyurethane ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] Please refer to Figures 1-5 ​The application provides a technical scheme: an active oil removing device on the outlet side of an aluminum foil rolling mill, which comprises a driving roller 2, mounting plates 1 and connecting plates 6 rotatably arranged at the two ends of the driving roller 2, a driver arranged on the mounting plate 1 and used for driving the driving roller 2 to rotate, a fixed shaft 3 arranged on the connecting plate 6, a cleaning roller 4 rotatably arranged on the fixed shaft 3 and capable of being driven by the driving roller 2, the driving roller 2 being arranged in parallel with the cleaning roller 4, cleaning holes 41 uniformly distributed on the peripheral side of the cleaning roller 4, the fixed shaft 3 being a hollow structure with an open end, and the peripheral side of the fixed shaft 3 inside the cleaning roller 4 being provided with uniformly distributed negative pressure holes 31, and the open end of the fixed shaft 3 being connected with an external negative pressure device, the external negative pressure device making the inside of the cleaning roller 4 in a negative pressure state through the fixed shaft 3 with the negative pressure holes 31, so that the cleaning roller 4 can make the upper space of the strip on the outlet side of the rolling mill in a negative pressure environment through the cleaning holes 41, thereby avoiding that oil mist is gathered on the upper surface of the strip on the outlet side.

[0035] The rotating cleaning roller 4 can wipe and clean the work roller, and under the action of negative pressure, oil drops on the cleaning roller 4 and the work roller can be extracted in real time, so that the cleaning effect of the cleaning roller 4 on the work roller is ensured.

[0036] The bottom of the mounting plate 1 is rotatably provided with an extension piece used for controlling the connecting plate 6 to rotate around the central axis of the driving roller 2, and the fixed shaft 3 is movably sleeved with a detection ring used for detecting whether the work roller and the supporting roller of the rolling mill are parallel.

[0037] Further, the driver comprises a servo motor 5 mounted on the mounting plate 1, a main pulley 51 is arranged on the output shaft of the servo motor 5, a secondary pulley 21 is arranged at the end of the driving roller 2 corresponding to the main pulley 51, and the main pulley 51 and the secondary pulley 21 are transmissionally connected through a belt 52.

[0038] The driving roller 2 and the cleaning roller 4 form a partition, the top of the housing of the rolling mill is partitioned from the outlet of the rolling mill, and oil drops condensed on the top of the housing of the rolling mill can only fall on the driving roller 2 or the cleaning roller 4, and in the process of rotation of the driving roller 2 or the cleaning roller 4, the cleaning roller 4 performs negative pressure extraction cleaning on the peripheral side of the driving roller 2, so that the oil drops on the driving roller 2 are removed.

[0039] Further, the extension piece is a pneumatic cylinder 7, the fixed end of the pneumatic cylinder 7 is rotatably arranged at the bottom of the mounting plate 1, and the extension end of the pneumatic cylinder 7 is rotatably arranged on a push rod at the bottom of the connecting plate 6.

[0040] Further, the connecting plate 6 is provided with a magnet 61 capable of magnetically attracting the detection ring, and in a non-detection state, the detection ring is magnetically attracted to the magnet 61.

[0041] Further, the detection ring comprises an inner ring 8 capable of being magnetically adsorbed with the magnet 61, and an annular buffer pad 81 is arranged at the outer circumferential side of the inner ring 8, a recess of the annular buffer pad 81 is provided with a pressure sensor 82, and an outer ring 83 is arranged at the outer circumferential side of the annular buffer pad 81, and the outer circumferential side of the outer ring 83 is provided with a polyurethane ring 84. After the detection ring is installed at both ends of the cleaning roller 4, when the cleaning roller 4 drives the detection ring to rotate, the size of the value detected by the two pressure sensors 82 at the same time can determine whether the work roller is parallel to the cleaning roller 4 and whether the support roller is parallel to the cleaning roller 4, so as to determine whether the support roller and the work roller are parallel.

[0042] Further, the cleaning roller 4 is a polyurethane roller, which avoids damaging the work roller and the support roller, and an annular groove 42 with a key groove is arranged at both ends of the cleaning roller 4 for installing the inner ring 8, and a clamping key corresponding to the key groove is arranged at the inner circumferential side of the inner ring 8, so as to avoid relative rotation between the detection ring and the cleaning roller 4.

[0043] An oil removal method of an active oil removal device at an outlet side of an aluminum foil rolling mill, comprising the following steps:

[0044] S1, when the mounting plate 1 is fixedly installed, the cleaning roller 4 is kept in contact with the work roller on the rolling mill, and the cleaning roller 4 is kept parallel to the work roller on the rolling mill, and the open end of the fixed shaft 3 is connected with an external negative pressure device through a connecting pipe;

[0045] S2, the servo motor 5 is controlled to work, the servo motor 5 drives the main pulley 51 to work, the main pulley 51 drives the secondary pulley 21 to rotate through the belt 52, the driving roller 2 is driven to rotate by the secondary pulley 21, the driving roller 2 drives the cleaning roller 4 to rotate on the fixed shaft 3 under the action of friction, the rotating cleaning roller 4 wipes and cleans the circumferential side surface of the work roller, and under the action of negative pressure, the process oil on the surface of the cleaning roller 4 is sequentially extracted by the external negative pressure device through the cleaning hole 41 and the negative pressure hole 31 and the fixed shaft 3;

[0046] S3, under the action of the negative pressure device, the oil gas between the strip at the outlet side of the rolling mill and the cleaning roller 4 is extracted by the external negative pressure device through the cleaning hole 41 and the negative pressure hole 31 and the fixed shaft 3, so that the strip and the cleaning roller 4 are in a negative pressure environment, and the oil gas at the outlet side is prevented from adhering to the strip.

[0047] Further, the driving roller 2 and the cleaning roller 4 form a partition, the top of the frame of the rolling mill is partitioned from the outlet of the rolling mill, and the oil droplets condensed on the top of the frame of the rolling mill can only fall on the driving roller 2 or the cleaning roller 4, and in the rotating process of the driving roller 2 or the cleaning roller 4, the circumferential side surface of the driving roller 2 is negatively extracted and cleaned by the cleaning roller 4, so as to remove the oil droplets on the driving roller 2.

[0048] Further, after the strip rolling is completed, the servo motor 5 is controlled to stop working, the inner ring 8 is sleeved on the annular groove 42, and the servo motor 5 is controlled to work again, so that the cleaning roller 4 rotates one circle, the cleaning roller 4 drives the detection ring to rotate one circle, the working roller of the rolling mill is extruded against the outer ring 83 through the polyurethane ring 84 in the process, the outer ring 83 extrudes the pressure sensor 82, the maximum value of the pressure sensor 82 is recorded, F 左1 and F 右1 , ΔF 工作辊 =|F 左1 -F 右1 |, when the value of ΔF 工作辊 is within the error range, it is indicated that the working roller is parallel to the cleaning roller, otherwise, when the value of ΔF 工作辊 is not within the error range, it is indicated that the working roller is not parallel to the cleaning roller;

[0049] In the detection state of the working roller: in the process that the cleaning roller 4 drives the detection ring to rotate one circle, the working roller of the rolling mill is extruded against the left outer ring 83 through the left polyurethane ring 84, the left outer ring 83 extrudes the corresponding pressure sensor 82, F 左1 is the maximum value of the left pressure sensor 82; similarly, F 右1 is the maximum value of the right pressure sensor 82;

[0050] Then the servo motor 5 is controlled to stop working, and the air cylinder 7 is controlled to be elongated, the air cylinder 7 drives the connecting plate 6 to rotate around the central axis of the driving roller 2, the connecting plate 6 drives the cleaning roller 4 to rotate, and the cleaning roller 4 is in contact with the upper support roller of the rolling mill; the servo motor 5 is controlled to rotate reversely, so that the cleaning roller 4 reversely rotates one circle, in the process, the support roller of the rolling mill is extruded against the outer ring 83 through the polyurethane ring 84, the outer ring 83 extrudes the pressure sensor 82, the maximum value of the pressure sensor 82 is recorded, F 左2 and F 右2 , ΔF 支撑辊 =|F 左2 -F 右2 |, when the value of ΔF 支撑辊 is within the error range, it is indicated that the support roller is parallel to the cleaning roller, otherwise, when the value of ΔF 支撑辊 is not within the error range, it is indicated that the support roller is not parallel to the cleaning roller; when the working roller and the support roller are both parallel to the cleaning roller, it is indicated that the support roller and the working roller are parallel; otherwise, if only one of the working roller and the support roller is parallel to the cleaning roller, it is indicated that the support roller and the working roller are not parallel; the device is installed to keep the cleaning roller 4 parallel to the working roller, so in the detection, it is mainly detected whether the support roller is parallel to the cleaning roller 4;

[0051] In the detection state of the support roller: when the cleaning roller 4 drives the detection ring to rotate one circle, the support roller of the rolling mill squeezes the outer ring 83 on the left side through the polyurethane ring 84 on the left side, and the outer ring 83 on the left side squeezes the corresponding pressure sensor 82, F 左2 is the maximum value of the pressure sensor 82 on the left; similarly, F 右2 is the maximum value of the pressure sensor 82 on the right.

[0052] The servo motor 5 used in the present invention is a commonly used electrical equipment in the prior art. Its working mode and circuit structure are well-known technologies and will not be elaborated here. The servo motor 5 can control the speed and has very accurate position accuracy. It can convert the voltage signal into torque and speed to drive the control object; the servo motor rotor speed is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft, which is convenient for precise control of the rotation angle of the servo motor 5 during detection.

[0053] The present invention separates the arch top from the outlet strip by means of a driving roller 2 and a cleaning roller 4, and cleans the outlet side of the working roller by means of active wiping cleaning and negative pressure adsorption, and cleans the oil mist and oil droplets on the upper side of the outlet strip, thereby avoiding oil defects in the strip and improving the quality of the strip. It can also detect whether the working rollers and support rollers of the rolling mill are parallel, has multiple functions, can save time, improve work efficiency, and is easy to use.

[0054] Any undisclosed portions of the present invention are prior art, and their specific structures, materials, and operating principles will not be described in detail. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An active oil removal device at the outlet side of an aluminum foil rolling mill, comprising a drive roller (2), characterized in that: Both ends of the driving roller (2) are rotatably provided with mounting plates (1) and connecting plates (6), the mounting plate (1) is provided with a driver for driving the driving roller (2) to rotate, the connecting plate (6) is provided with a fixed shaft (3), the fixed shaft (3) is rotatably provided with a cleaning roller (4) that can be driven by the driving roller (2), the driving roller (2) and the cleaning roller (4) are arranged in parallel, the circumferential side surface of the cleaning roller (4) is provided with evenly distributed cleaning holes (41), the fixed shaft (3) is a hollow structure with one end open, and the circumferential side surface of the fixed shaft (3) located inside the cleaning roller (4) is provided with evenly distributed negative pressure holes (31). 1), and the open end of the fixed shaft (3) is connected to the external negative pressure device, the bottom of the mounting plate (1) is rotatably provided with a telescopic member for controlling the connection plate (6) to rotate around the central axis of the driving roller (2), the movable sleeve on the fixed shaft (3) is provided with a detection ring for detecting whether the working roller and the support roller of the rolling mill are parallel, the detection ring includes an inner ring (8), an annular buffer pad (81) is provided on the outer peripheral side of the inner ring (8), a pressure sensor (82) is installed in the groove of the annular buffer pad (81), an outer ring (83) is provided on the outer peripheral side of the annular buffer pad (81), and a polyurethane ring (84) is provided on the outer peripheral side of the outer ring (83).

2. The active oil removal device at the outlet side of the aluminum foil rolling mill according to claim 1, characterized in that: The driver comprises a servo motor (5) mounted on a mounting plate (1), a main pulley (51) being provided on an output shaft of the servo motor (5), a secondary pulley (21) being provided on an end of the driving roller (2) corresponding to the main pulley (51), and the main pulley (51) and the secondary pulley (21) being connected to each other via a belt (52).

3. The active oil removal device at the outlet of the aluminum foil rolling mill according to claim 2, characterized in that: The telescopic member is a cylinder (7), the fixed end of the cylinder (7) is rotatably arranged on the bottom of the mounting plate (1), and the telescopic end of the cylinder (7) is rotatably arranged on the push rod at the bottom of the connecting plate (6).

4. The active oil removal device at the outlet of the aluminum foil rolling mill according to claim 3, characterized in that: The connecting plate (6) is provided with a magnet (61) capable of magnetically attracting the detection ring.

5. The active oil removal device at the outlet of the aluminum foil rolling mill according to claim 4, characterized in that: The cleaning roller (4) is a polyurethane roller, and both ends of the cleaning roller (4) are provided with annular grooves (42) with keyways for mounting the inner ring (8), and the inner circumference of the inner ring (8) is provided with a key corresponding to the keyway.

6. A degreasing method based on the active degreasing device at the outlet of an aluminum foil rolling mill according to claim 5, characterized in that: The following steps are involved: S1. When the mounting plate (1) is fixedly mounted, the cleaning roller (4) is kept in contact with the upper working roller of the rolling mill, and the cleaning roller (4) is kept parallel to the upper working roller, and the open end of the fixed shaft (3) is connected to the external negative pressure device through a connecting pipe; S2, control the servo motor (5) to work, the servo motor (5) drives the main pulley (51) to work, the main pulley (51) drives the secondary pulley (21) to rotate through the belt (52), the secondary pulley (21) drives the driving roller (2) to rotate, the driving roller (2) drives the cleaning roller (4) to rotate on the fixed shaft (3) under the action of friction, the rotating cleaning roller (4) wipes and cleans the peripheral side of the upper working roller, and at the same time, under the action of negative pressure, the process oil on the surface of the cleaning roller (4) is extracted by the external negative pressure device through the cleaning hole (41) and the negative pressure hole (31) and the fixed shaft (3) in sequence; S3. Under the action of the negative pressure device, the oil and gas between the strip at the outlet side of the rolling mill and the cleaning roller (4) are extracted by the external negative pressure device through the cleaning hole (41), the negative pressure hole (31), and the fixed shaft (3), thereby placing the strip and the cleaning roller (4) in a negative pressure environment, thereby preventing the oil and gas at the outlet side from adhering to the strip.

7. The oil removal method for the active oil removal device at the outlet side of an aluminum foil rolling mill according to claim 6, characterized in that: The driving roller (2) and the cleaning roller (4) form a partition, isolating the top of the mill arch from the mill outlet, so that the oil droplets condensed on the top of the mill arch can only drip onto the driving roller (2) or the cleaning roller (4). During the rotation of the driving roller (2) or the cleaning roller (4), the cleaning roller (4) performs negative pressure extraction and cleaning on the peripheral side of the driving roller (2), thereby removing the oil droplets on the driving roller (2).

8. The oil removal method for the active oil removal device at the outlet side of an aluminum foil rolling mill according to claim 6, characterized in that: After the strip is rolled, the servo motor (5) is controlled to stop working, the inner ring (8) is placed on the annular groove (42), and the servo motor (5) is controlled to work again, so that the cleaning roller (4) rotates one circle, and the cleaning roller (4) drives the detection ring to rotate one circle. During this process, the working roller of the rolling mill squeezes the outer ring (83) through the polyurethane ring (84), and the outer ring (83) squeezes the pressure sensor (82). The maximum value of the pressure sensor (82) is recorded to obtain F 左1 and F 右1 , ΔF 工作辊 =|F 左1 -F 右1 ∣, when ΔF 工作辊 If the value of is within the error range, it means that the working roller is parallel to the cleaning roller. On the contrary, when ΔF 工作辊 If the value is not within the error range, it means that the working roller and the cleaning roller are not parallel; Then, the servo motor (5) is controlled to stop working, and the cylinder (7) is controlled to extend. The cylinder (7) pushes the connecting plate (6) to rotate around the central axis of the driving roller (2). The connecting plate (6) drives the cleaning roller (4) to rotate, and the cleaning roller (4) is brought into contact with the upper support roller of the rolling mill. The servo motor (5) is controlled to rotate in the reverse direction to make the cleaning roller (4) rotate in the reverse direction one circle. During this process, the support roller of the rolling mill squeezes the outer ring (83) through the polyurethane ring (84). The outer ring (83) squeezes the pressure sensor (82). The maximum value of the pressure sensor (82) is recorded to obtain F 左2 and F 右2 , ΔF 支撑辊 =|F 左2 -F 右2 ∣, when ΔF 支撑辊 If the value of is within the error range, it means that the support roller is parallel to the cleaning roller. On the contrary, when ΔF 支撑辊 If the value is not within the error range, it means that the support roller and the cleaning roller are not parallel; when the working roller and the support roller are parallel to the cleaning roller, it means that the support roller and the working roller are parallel; on the contrary, if only one of the working roller and the support roller is parallel to the cleaning roller, it means that the support roller and the working roller are not parallel.

Images