Method and apparatus for predicting roll surface damage

Abstract

The application provides a method and equipment for predicting roll surface damage, which comprises an aluminum strip surface polishing equipment, the aluminum strip surface polishing equipment comprises a sliding jacking frame, a polishing mechanism is horizontally arranged above the sliding jacking frame, the polishing mechanism comprises a lifting frame, a sliding plate is vertically and slidably connected to the lifting frame corresponding to the sliding jacking frame, a polishing device is arranged below the sliding plate, a jacking plate is vertically and slidably connected to the sliding jacking frame corresponding to the sliding plate, an aluminum strip adhesive tape structure and a coiling expansion and contraction shaft are sequentially arranged on the output end of the aluminum strip surface polishing equipment along the conveying direction of the aluminum strip, and a rubber sleeve is coaxially arranged on the outer side of the coiling expansion and contraction shaft. The application has reasonable design, solves the problem that the existing technology cannot effectively determine whether there is damage defect on the roll surface, improves the production efficiency, facilitates professional production, and effectively reduces the indentation of the aluminum strip coil.

Description

Technical Field

[0001] This invention relates to a method and equipment for predicting surface damage of rolling mill rolls. Background Technology

[0002] Currently, aluminum strip is formed by rolling. Due to defects such as protrusions on the surface of the rolls, a surface defect will be formed in the aluminum strip at intervals. However, due to the influence of the oxide film on the surface of the aluminum strip, the actual surface defects are difficult to observe. There is no effective method or equipment for judgment, which seriously affects the forming quality of aluminum strip. Summary of the Invention

[0003] In view of this, the present invention provides a method and apparatus for predicting surface damage of rolls, solving the problem that the prior art cannot effectively determine whether there are defects on the surface of rolls.

[0004] This invention is implemented using the following scheme: A method for predicting surface damage of a roll: First, the beginning section of the aluminum strip end is rolled. The rolled aluminum strip end section is then simultaneously conveyed to a grinding device. The grinding device grinds the beginning section of the rolled aluminum strip end, removing the oxide film on the surface of the aluminum strip end. Then, it is observed whether there are intermittently recurring defects or pits on the ground surface. If intermittently recurring defects or pits are present, it indicates that the working surface of the roll is uneven and has defects or protrusions, requiring the roll to be replaced or repaired. Otherwise, it will affect the rolling of the remaining part of the aluminum strip. If there are no intermittently recurring defects or pits, it indicates that there are no defects on the working surface of the roll that affect processing, and the rolling of the remaining part of the aluminum strip can continue.

[0005] A device for predicting surface damage of rolling mill rolls includes an aluminum strip surface grinding device. The aluminum strip surface grinding device includes a sliding lifting frame, a grinding mechanism is horizontally placed above the sliding lifting frame, the grinding mechanism includes a lifting frame, a sliding plate is vertically slidably connected to the lifting frame corresponding to the sliding lifting frame, a grinding device is provided below the sliding plate, and a lifting plate is vertically slidably connected to the sliding plate on the sliding lifting frame.

[0006] Furthermore, the sliding lifting frame includes a first frame, on which lifting cylinders are symmetrically mounted on the left and right sides. The left and right sides of the lifting plate are fixed to the corresponding lifting cylinders. The lifting plate is symmetrically provided with first vertical slide rods on both sides of the lifting cylinders. The first frame is provided with first sliding sleeves corresponding to the first vertical slide rods.

[0007] Furthermore, the lifting frame includes a second frame, on which downward lifting cylinders are symmetrically mounted. The left and right sides of the sliding plate are fixed to the corresponding lifting cylinders. The sliding plate is symmetrically provided with second vertical sliding rods on both sides of the lifting cylinders. The second frame is provided with second sliding sleeves corresponding to the second vertical sliding rods.

[0008] Furthermore, the sliding plate includes a frame body, and a grinding device is provided on the lower surface of the frame body. The grinding device includes several grinding discs, which are rotatably connected to the frame body. Each grinding disc is driven by the same motor via a chain, and the motor is fixed to the frame body.

[0009] Furthermore, the first frame is symmetrically provided with a first fixing plate on the left and right, and the lifting cylinder and the first sliding sleeve are both installed on the first fixing plate on the same side. The second frame is symmetrically provided with a second fixing plate on the left and right, and the lifting cylinder and the second sliding sleeve are both installed on the second fixing plate on the same side.

[0010] Furthermore, the aluminum strip surface grinding equipment has an aluminum strip adhesive tape structure and a winding expansion shaft arranged sequentially along the aluminum strip conveying direction at the output end. The outer side of the winding expansion shaft is coaxially fitted with a rubber sleeve. The aluminum strip adhesive tape structure includes a pair of conveying roller groups arranged sequentially along the aluminum strip conveying direction. An adhesive tape unwinding mechanism is provided between the pair of conveying roller groups. A belt pulling mechanism is provided on the side of the adhesive tape unwinding mechanism for pulling the adhesive tape to move horizontally perpendicular to the aluminum strip conveying direction. A pressing mechanism is provided above the adhesive tape unwinding mechanism for pressing the aluminum strip down to contact the adhesive tape.

[0011] Furthermore, the belt pulling mechanism includes a linear motion module parallel to the conveyor roller group. The moving end of the linear motion module is provided with a moving seat, and the moving seat is provided with a pneumatic gripper for clamping the belt. The pneumatic gripper is driven to move forward and backward by a horizontally arranged avoidance cylinder.

[0012] Furthermore, a tape cutting assembly is provided on the side of the pneumatic gripper. The tape cutting assembly includes a cutter and a cutting motor for driving the cutter to rotate. The cutting motor is horizontally arranged along the direction perpendicular to the aluminum strip conveying direction and is driven to move forward and backward by a cutting cylinder mounted on a movable base.

[0013] Furthermore, the tape unwinding mechanism includes an unwinding roller wound with tape, the unwinding roller being driven to rotate by an unwinding motor, and the pressing mechanism includes a pressing roller parallel to the conveying roller group, the pressing roller being installed at the lower end of a pressing roller frame, the pressing roller frame being driven to rise and fall vertically by a pair of pressing cylinders located above it.

[0014] Compared with the prior art, the present invention has the following advantages: it is reasonably designed, solves the problem that the prior art cannot effectively determine whether there are defects on the surface of the roll, improves production efficiency, facilitates specialized production, and can effectively reduce the indentation caused by aluminum strip coiling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the aluminum strip surface polishing equipment according to an embodiment of the present invention;

[0017] Figure 3 This is a top view of the aluminum strip surface polishing equipment according to an embodiment of the present invention;

[0018] Figure 4 This is a side view of the aluminum strip surface grinding equipment according to an embodiment of the present invention.

[0019] Figure 5 This is a three-dimensional structural diagram of the aluminum strip adhesive tape structure in an embodiment of the present invention. Figure 1 ;

[0020] Figure 6 This is a three-dimensional structural diagram of the aluminum strip adhesive tape structure in an embodiment of the present invention. Figure 2 (One pair of conveyor rollers omitted);

[0021] Figure 7 This is a front view schematic diagram of the aluminum strip adhesive tape structure in an embodiment of the present invention (a pair of conveyor rollers are omitted).

[0022] Figure 8 This is a top view of the conveyor belt mechanism in an embodiment of the present invention (the linear movement module is omitted).

[0023] Figure 9 This is a schematic diagram of the structure of the aluminum strip after it has been coated with adhesive tape during winding in an embodiment of the present invention.

[0024] In the diagram: A0 - Aluminum strip surface grinding equipment; A1 - Sliding lifting frame; A2 - Grinding mechanism; A3 - Lifting frame; A4 - Sliding plate; A5 - Grinding device; A6 - Lifting plate; A7 - First frame; A8 - Lifting cylinder; A9 - First vertical slide bar; A10 - First sliding sleeve; A11 - Pulley; A12 - Second frame; A13 - Lifting cylinder; A14 - Second vertical slide bar; A15 - Second sliding sleeve; A16 - Frame body; A17 - Grinding disc; A18 - Motor; A19 - First fixing plate; A20 - Second fixing plate; B0 - Aluminum strip adhesive tape application structure; B 1-Conveyor roller assembly; B2-Aluminum strip; B201-First ring of aluminum sheet; B202-Second ring of aluminum sheet; B203-End edge; B3-Belt unwinding mechanism; B4-Belt; B5-Belt pulling mechanism; B6-Pressing mechanism; B7-Wrap-up and shrink shaft; B8-Linear movement module; B9-Moving seat; B10-Pneumatic gripper; B11-Avoidance cylinder; B12-Cutter; B13-Cut-off motor; B14-Cut-off cylinder; B15-Unwinding roller; B16-Unwinding motor; B17-Pressing roller; B18-Pressing roller frame; B19-Pressing cylinder; B20-Sheet. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] A method for predicting surface damage of rolling mill rolls: First, the beginning section of the aluminum strip end is rolled. The rolled aluminum strip end is then simultaneously conveyed to a grinding device. The grinding device grinds the beginning section of the rolled aluminum strip end to remove the oxide film on the surface of the aluminum strip end. Then, it is observed whether there are intermittently recurring defects or pits on the ground surface. If intermittently recurring defects or pits are present, it indicates that the working surface of the rolling mill roll is uneven and has defects or protrusions. The rolling mill roll needs to be replaced or repaired, otherwise it will affect the rolling of the remaining part of the aluminum strip. If there are no intermittently recurring defects or pits, it indicates that there are no defects on the working surface of the rolling mill roll that affect processing, and the rolling of the remaining part of the aluminum strip can continue.

[0029] like Figure 1-4 As shown, a device for predicting surface damage of rolling mill rolls includes an aluminum strip surface grinding device A0, which includes a sliding lifting frame A1, a grinding mechanism A2 horizontally positioned above the sliding lifting frame, a lifting frame A3, a sliding plate A4 vertically slidably connected to the lifting frame corresponding to the sliding lifting frame, a grinding device A5 positioned below the sliding plate, and a lifting plate A6 vertically slidably connected to the sliding plate corresponding to the sliding plate. In use, aluminum sheets are conveyed to the device via a conveyor belt. The lifting plate rises, lifting the aluminum sheet. Then, the lifting frame descends, driving the grinding mechanism downwards. The grinding mechanism moves to perform grinding, solving the problem that existing technologies cannot effectively determine whether there are defects on the surface of rolling mill rolls, improving production efficiency, and facilitating specialized production.

[0030] In this embodiment, for the sake of reasonable design, the sliding lifting frame includes a first frame A7, on which lifting cylinders A8 are symmetrically mounted. The left and right sides of the lifting plate are fixed to the corresponding lifting cylinders, and the lifting plate is driven to rise by the lifting cylinders.

[0031] In this embodiment, for the sake of reasonable design and to assist in the rising of the lifting plate, the lifting plate is provided with first vertical slide rods A9 symmetrically arranged on both sides of the lifting cylinder, and the first frame is provided with first sliding sleeves A10 corresponding to the first vertical slide rods.

[0032] In this embodiment, in order to facilitate the movement of the sliding lifting frame, pulleys A11 are provided under the four legs of the sliding lifting frame.

[0033] In this embodiment, for the sake of reasonable design, the lifting frame includes a second frame A12, on which downward lifting cylinders A13 are symmetrically mounted. The left and right sides of the sliding plate are fixed to the corresponding lifting cylinders. The lifting and lowering of the sliding plate is achieved by extending and retracting the lifting cylinders.

[0034] In this embodiment, for the sake of reasonable design and to assist in the lifting and lowering of the sliding plate, a second vertical slide rod A14 is symmetrically arranged on both sides of the lifting cylinder on the sliding plate, and a second sliding sleeve A15 is arranged on the second frame corresponding to the second vertical slide rod.

[0035] In this embodiment, in order to achieve polishing, the sliding plate includes a frame body A16, and a polishing device is provided on the lower surface of the frame body. The polishing device includes a plurality of polishing discs A17, which are rotatably connected to the frame body. The rotatable connection method can be the existing shaft rotatable connection. Each polishing disc is driven by the same motor A18 through a chain, and the motor is fixed to the frame body.

[0036] In this embodiment, several connecting brackets can be provided on the frame body corresponding to the grinding disc, and the grinding disc is rotatably connected to the connecting brackets.

[0037] In this embodiment, in order to fix the lifting cylinder and the first sliding sleeve, the first frame is symmetrically provided with a first fixing plate A19 on the left and right sides, and the lifting cylinder and the first sliding sleeve are both installed on the first fixing plate on the same side.

[0038] In this embodiment, in order to fix the lifting cylinder and the second sliding sleeve, the second frame is symmetrically provided with second fixing plates A20 on the left and right sides, and the lifting cylinder and the second sliding sleeve are both installed on the second fixing plates on the same side.

[0039] In this embodiment, the aluminum strip surface polishing equipment has an aluminum strip adhesive tape structure B0 and a winding expansion shaft B7 arranged sequentially along the aluminum strip conveying direction at the output end. The processed aluminum strip B2 first passes through the aluminum strip adhesive tape structure B0, and then is wound up by the winding expansion shaft B7.

[0040] like Figure 1 As shown, a rubber sleeve B20 is coaxially sleeved on the outer side of the winding expansion and contraction shaft B7. After winding with the rubber sleeve, because the rubber sleeve material is relatively soft, the rubber sleeve is easy to deform when the strip head is squeezed by the subsequent strip, so that the strip head sinks into the surface of the rubber sleeve, thereby reducing the height difference between the strip head and the subsequent strip. In addition, the use of the rubber sleeve for winding can create a buffer medium between the finished roll and the winding expansion and contraction shaft, preventing the fan-shaped blocks on the expansion and contraction shaft from damaging the inner ring of the roll under the action of expansion force and winding tension.

[0041] like Figures 5-9As shown, the aluminum strip adhesive tape structure B0 includes a pair of conveying roller groups B1 arranged sequentially along the conveying direction of the aluminum strip B2. The pair of conveying roller groups B1 are distributed front and rear, and an adhesive tape unwinding mechanism B3 is provided between the pair of conveying roller groups B1. The adhesive tape unwinding mechanism B3 is used to output adhesive tape B4, and the thickness of the adhesive tape can be greater than or equal to the thickness of the aluminum strip. A pulling mechanism B5 is provided on the rear side of the adhesive tape unwinding mechanism B3 for pulling the adhesive tape B4 to move horizontally along a direction perpendicular to the conveying direction of the aluminum strip B3. A pressing mechanism B6 is provided above the adhesive tape unwinding mechanism B3 for pressing the aluminum strip B2 down to contact the adhesive tape B4. During operation, a pair of conveyor rollers B1 move the aluminum strip B2 from back to front. The tape B4 output by the tape unwinding mechanism B3 is positioned below the aluminum strip B2. The tape pulling mechanism B5 pulls the tape B4 horizontally along a direction perpendicular to the conveying direction of the aluminum strip B3. The distance the tape moves is slightly greater than the width of the aluminum strip. Then, the pressing mechanism B6 presses the aluminum strip B2 down until it contacts the tape B4, thus attaching the tape to the surface of the aluminum strip during the winding and conveying process. Figure 6 As shown; after the aluminum strip is wound once, the tape B4 is close to the end of the first round of aluminum strip B201, or there is a gap between them; at this time, the thickness of the tape is greater than or equal to the thickness of the aluminum strip. When the aluminum strip is wound for the second time, the side of the second round of aluminum strip B202 facing the sleeve B20 will come into contact with the tape B4, so as to prevent the end edge B203 of the first round of aluminum strip B201 from abutting against the side of the second round of aluminum strip B202 facing the sleeve B20, effectively preventing the aluminum strip from being scratched or worn by its end edge when it is wound for the second time.

[0042] In this embodiment, the length of the first winding of the aluminum strip 2 is less than or equal to the circumference of the rubber sleeve.

[0043] In this embodiment, the tape-pulling mechanism B5 includes a linear motion module B8 parallel to the conveyor roller group. The moving end of the linear motion module B8 is equipped with a moving seat B9. The linear motion module B8 drives the moving seat B9 to move horizontally along a direction perpendicular to the aluminum strip conveying direction. The moving seat B9 is equipped with a pneumatic gripper B10 for clamping the tape. The pneumatic gripper B10 is driven forward and backward by a horizontally positioned clearance cylinder B11. During operation, the clearance cylinder B11 drives the pneumatic gripper B10 to extend forward, clamping the end of the tape. Then, the linear motion module B8, through the moving seat B9, drives the pneumatic gripper B10 to move horizontally along a direction perpendicular to the aluminum strip conveying direction, causing the pneumatic gripper B10 to move synchronously with the tape B4. After tape application is completed, the pneumatic gripper releases the tape, the clearance cylinder drives the pneumatic gripper to reset backward, and then the linear motion module drives the pneumatic gripper back to its initial position. It should be noted that the linear motion module is an existing mature product, also called a linear module, linear slide, etc. It can be a ball screw type or a linear motor type. Its detailed structure and working principle will not be repeated here.

[0044] In this embodiment, a tape cutting assembly is provided beside the pneumatic gripper B10. The tape cutting assembly includes a circular cutter B12 and a cutting motor B13 for driving the cutter B12 to rotate. The cutting motor B13 is horizontally arranged perpendicular to the aluminum strip conveying direction. The cutting motor B13 is driven to move forward and backward by a cutting cylinder B14 mounted on a movable base B9. During operation, when the tape application is completed and the pneumatic gripper returns to its initial position, the avoidance cylinder drives the pneumatic gripper to extend forward again, and the pneumatic gripper clamps the tape again. Then, the cutting cylinder drives the cutting motor and the cutter to move forward, and the cutting motor drives the cutter to rotate to cut the tape.

[0045] In this embodiment, the tape unwinding mechanism B3 includes an unwinding roller B15 on which tape B4 is wound. The unwinding roller is arranged in the front-back direction, and the unwinding roller B15 is driven to rotate by an unwinding motor B16.

[0046] In this embodiment, the pressing mechanism B6 includes a pressing roller B17 parallel to the conveying roller group B1. The pressing roller B17 is installed at the lower end of an inverted U-shaped pressing roller frame B18. The pressing roller frame B18 is driven to move vertically up and down by a pair of pressing cylinders B19 located above it.

[0047] In this embodiment, each pair of conveyor roller groups B1 includes two conveyor rollers that are arranged vertically and horizontally, and the aluminum strip passes between the two conveyor rollers.

[0048] In this embodiment, the specific implementation process of the aluminum strip adhesive tape structure is as follows:

[0049] (1) Applying tape: Start the avoidance cylinder B11, the avoidance cylinder B11 drives the pneumatic gripper B10 to extend forward, then manually put the tape head into the pneumatic gripper B10, and then start the pneumatic gripper B10 to clamp the tape head.

[0050] (2) Feeding tape: Set the width of the aluminum strip, start the linear motion module B8, and drive the pneumatic gripper B10 to move horizontally along the direction perpendicular to the aluminum strip conveying until the tape is in place.

[0051] (3) Applying tape: The pressing cylinder B19 drives the pressing roller B17 to move downward through the pressing roller frame B18. The pressing roller B17 presses down on the aluminum strip so that the aluminum strip is bonded to the tape. Then, the pneumatic gripper B10 is released and the clearance cylinder B11 drives the pneumatic gripper B10 to reset backward. Finally, the pressing cylinder B19 drives the pressing roller B17 to reset upward.

[0052] (4) Cutting tape: The linear motion module B8 drives the pneumatic gripper B10 to return to the initial position. Then, the avoidance cylinder B11 drives the pneumatic gripper B10 to extend forward and clamp the tape B4. Finally, the cutting cylinder B14 drives the cutting motor B13 and the cutter B12 to move forward and the cutting motor B13 drives the cutter B12 to rotate to cut the tape.

[0053] (5) Module returns to origin: the cutting cylinder B14 drives the cutting motor B13 and the cutter B12 to reset backward, the pneumatic gripper B10 releases the tape B4, and the clearance cylinder B11 drives the pneumatic gripper B10 to reset backward.

[0054] (6) Collect tape: Manually collect excess tape and proceed to the next work cycle.

[0055] In this embodiment, by using a rubber sleeve B20 on the outside of the winding expansion shaft B7 for winding, the rubber sleeve has a higher surface roughness. After the rubber sleeve replaces the paper core sleeve for winding, slippage on the inner ring is less likely to occur. At the same time, after using the rubber sleeve for winding, there is no need to use a base medium (steel sleeve, paper core sleeve) when winding the finished product, saving production auxiliary time, improving production efficiency, and saving costs (approximately 350 yuan / roll). Furthermore, after the finished product is wound with the rubber sleeve, there is no base medium on the inner ring after the finished product comes off the machine, and there is no resistance after the material rebounds, which can eliminate the rebound deformation that occurs under natural placement conditions of the roll material.

[0056] Unless otherwise stated, if any of the technical solutions disclosed in this invention specify a numerical range, then the disclosed numerical range is a preferred numerical range. Anyone skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this invention discloses only some numerical values ​​to illustrate the technical solutions of this invention. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this invention.

[0057] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0058] If this invention discloses or relates to mutually fixedly connected components or structural parts, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0059] Furthermore, the orientations or positional relationships used in any of the technical solutions disclosed in this invention above to indicate positional relationships, such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this invention above include shapes that are similar to, close to, or approximate with it.

[0060] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for predicting surface damage of rolling mill rolls, characterized in that: First, the beginning section of the aluminum strip is rolled. The rolled beginning section is then simultaneously conveyed to a grinding device. The grinding device grinds the beginning section of the rolled aluminum strip to remove the oxide film on the surface of the aluminum strip. Then, it is observed whether there are intermittently recurring defects or pits on the ground surface. If intermittently recurring defects or pits are present, it indicates that the working surface of the roll is uneven and has defects or protrusions. The roll needs to be replaced or repaired, otherwise it will affect the rolling of the remaining part of the aluminum strip. If there are no intermittently recurring defects or pits, it indicates that there are no defects on the working surface of the roll that affect processing, and the rolling of the remaining part of the aluminum strip can continue.

2. A device for predicting surface damage of rolling mill rolls, employing the method for predicting surface damage of rolling mill rolls as described in claim 1, characterized in that: The equipment includes an aluminum strip surface grinding device, which includes a sliding lifting frame. A grinding mechanism is horizontally placed above the sliding lifting frame. The grinding mechanism includes a lifting frame. A sliding plate is vertically slidably connected to the lifting frame corresponding to the sliding lifting frame. A grinding device is provided below the sliding plate. A lifting plate is vertically slidably connected to the sliding plate on the sliding lifting frame.

3. The device for predicting surface damage of rolling mill rolls according to claim 2, characterized in that: The sliding lifting frame includes a first frame, on which lifting cylinders are symmetrically mounted. The left and right sides of the lifting plate are fixed to the corresponding lifting cylinders. The lifting plate is symmetrically provided with first vertical sliding rods on both sides of the lifting cylinders. The first frame is provided with first sliding sleeves corresponding to the first vertical sliding rods.

4. The device for predicting surface damage of rolling mill rolls according to claim 3, characterized in that: The lifting frame includes a second frame, on which downward lifting cylinders are symmetrically mounted. The left and right sides of the sliding plate are fixed to the corresponding lifting cylinders. The sliding plate is symmetrically provided with second vertical sliding rods on both sides of the lifting cylinders. The second frame is provided with second sliding sleeves corresponding to the second vertical sliding rods.

5. The device for predicting surface damage of rolling mill rolls according to claim 2, characterized in that: The sliding plate includes a frame body, and a grinding device is provided on the lower surface of the frame body. The grinding device includes several grinding discs, which are rotatably connected to the frame body. Each grinding disc is driven by the same motor via a chain, and the motor is fixed to the frame body.

6. The device for predicting surface damage of rolling mill rolls according to claim 4, characterized in that: The first frame is symmetrically provided with a first fixing plate on the left and right sides, and the lifting cylinder and the first sliding sleeve are both installed on the first fixing plate on the same side. The second frame is symmetrically provided with a second fixing plate on the left and right sides, and the lifting cylinder and the second sliding sleeve are both installed on the second fixing plate on the same side.

7. The device for predicting surface damage of rolling mill rolls according to claim 2, characterized in that: The aluminum strip surface grinding equipment has an aluminum strip adhesive tape application structure and a winding expansion shaft arranged sequentially along the aluminum strip conveying direction at the output end. The outer side of the winding expansion shaft is coaxially fitted with a rubber sleeve. The aluminum strip adhesive tape application structure includes a pair of conveying roller groups arranged sequentially along the aluminum strip conveying direction. An adhesive tape unwinding mechanism is provided between the pair of conveying roller groups. A belt pulling mechanism is provided next to the adhesive tape unwinding mechanism for pulling the adhesive tape to move horizontally perpendicular to the aluminum strip conveying direction. A pressing mechanism is provided above the adhesive tape unwinding mechanism for pressing the aluminum strip down to contact the adhesive tape.

8. The device for predicting surface damage of rolling mill rolls according to claim 7, characterized in that: The belt pulling mechanism includes a linear moving module parallel to the conveyor roller group. The moving end of the linear moving module is provided with a moving seat. The moving seat is provided with a pneumatic gripper for holding the belt. The pneumatic gripper is driven to move forward and backward by a horizontally arranged avoidance cylinder.

9. The device for predicting surface damage of rolling mill rolls according to claim 8, characterized in that: A tape cutting assembly is provided on the side of the pneumatic gripper. The tape cutting assembly includes a cutter and a cutting motor for driving the cutter to rotate. The cutting motor is horizontally arranged along the direction perpendicular to the aluminum strip conveying direction and is driven to move forward and backward by a cutting cylinder mounted on a movable base.

10. The device for predicting surface damage of rolling mill rolls according to claim 7, characterized in that: The tape unwinding mechanism includes an unwinding roller wound with tape, the unwinding roller being driven to rotate by an unwinding motor, and the pressing mechanism includes a pressing roller parallel to the conveying roller group, the pressing roller being installed at the lower end of a pressing roller frame, the pressing roller frame being driven to rise and fall vertically by a pair of pressing cylinders located above it.

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