Polishing device for aluminum foil mill roller

Abstract

The invention relates to the technical field of grinding equipment, in particular to an aluminum foil mill roller grinding device which comprises a rack, a centering clamping assembly and a grinding assembly, the centering clamping assembly is arranged on the rack and used for clamping a roller and enabling the roller to rotate around the axis of the roller, and the grinding assembly comprises a shell, a grinding disc, a supporting column and a damping ring. The shell is slidably arranged on the rack, the grinding disc is rotatably arranged on the inner side of the shell, the axis of the grinding disc is horizontal, and the grinding disc can rotate around the axis of the grinding disc. The grinding device is provided with the supporting column and the grinding block, the grinding block is hinged to the periphery of the supporting column, and the grinding block is configured to be capable of rotating so that the grinding face of the grinding block can always keep linear contact with the peripheral face of the roller; therefore, the grinding block is not in linear contact with the roller due to different abrasion losses of the two ends of the grinding block at the grinding contact position of the grinding block and the roller, the grinding quality is guaranteed, and meanwhile the grinding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a grinding device for a roller of an aluminum foil rolling mill. Background Art

[0002] The performance and product quality of the rolls of the aluminum foil rolling mill may be affected by wear, deformation or surface damage during use. Therefore, regular inspection and maintenance of the rolls is an important part of ensuring smooth production. If defects such as local wear, surface scratches or damage are found on the roll surface of the rolling mill during inspection and maintenance, the rolls of the rolling mill need to be ground and corrected. Grinding the rolls of the aluminum foil rolling mill usually requires the use of specially designed grinding equipment, such as CNC roll grinders, cylindrical grinders, and special roll grinding machines.

[0003] In the process of grinding the roller, the roller is usually clamped by the centering clamping mechanism of the grinder so that the roller can rotate around its axis at a low speed, and then the sand roller is brought close to the surface of the roller so that the sand roller is in line contact with the roller, and then the sand roller is rotated around its own axis and slowly moved along the axis of the roller until the defects on the surface of the roller are removed, thus completing the grinding of the roller. However, the existing roller grinding device has the following problems when in use: since the sand roller moves along the axial direction of the roller, the wear amount of the side of the sand roller that first contacts the rough surface of the roller is greater than the wear amount of the side of the sand roller that later contacts the rough surface of the roller, which will cause the outer peripheral surface of the sand roller to be a conical surface with a certain slope, which will cause the sand roller and the roller to no longer be in line contact, thus reducing the grinding efficiency of the grinding roller. Summary of the invention

[0004] Based on this, it is necessary to provide a grinding device for the aluminum foil rolling mill rolls to address the problems existing in the current roll grinding devices, so as to solve the problem that the sand roller and the roll cannot always maintain line contact.

[0005] The above purpose is achieved through the following technical solutions: A grinding device for an aluminum foil rolling mill roll comprises: frame; A centering clamping assembly, which is arranged on the frame and is used to clamp the roll and make the roll rotate around its axis; A grinding assembly, the grinding assembly includes a shell, a grinding disc, a support column and a damping ring, the shell is slidably arranged on the frame, the grinding disc is rotatably arranged on the inner side of the shell, the axis of the grinding disc is horizontal, the grinding disc can rotate around its axis, there are multiple support columns, the multiple support columns are circumferentially arranged around the axis of the grinding disc at equal intervals, damping rings are coaxially arranged at both ends of the support column, a grinding block is hingedly connected to the outer periphery of the support column and located between the two damping rings, both ends of the grinding block are in friction contact with the damping ring on the corresponding side, and the grinding block is configured to be rotatable so that the grinding surface of the grinding block always maintains line contact with the outer peripheral surface of the roller, and the grinding surface of the grinding block is a circular arc surface; The grinding surface of the grinding block is a circular arc surface.

[0006] Preferably, there are multiple grinding blocks hingedly connected between the two damping rings on the periphery of each support column, and the multiple grinding blocks are arranged at equal intervals around the axis of the support column; The support column can rotate around its own axis.

[0007] Preferably, a driving assembly is provided inside the shell, and the driving assembly is used to drive the support column to rotate around the axis of the support column.

[0008] Preferably, the driving assembly includes a first gear, a driven wheel, a transmission belt and a power unit. There are multiple first gears, and the multiple first gears correspond one-to-one to the multiple support columns. The first gear is coaxially arranged at one end of the support column, the transmission belt is located on the outside of the first gear and is meshed with the multiple first gears. The driven wheel is coaxially arranged at one end of any support column, and the power unit is arranged inside the outer shell. The power unit is connected to the driven wheel power for driving the driven wheel to rotate around its axis.

[0009] Preferably, the power unit includes a hydraulic telescopic rod, a rack, a driving gear, a driving wheel and a belt. The hydraulic telescopic rod is arranged inside the shell, the telescopic end of the hydraulic telescopic rod is fixedly connected to the rack, the rack is meshed with the driving gear, the driving gear is rotatably connected to the inner side surface of the outside, the driving gear is also coaxially fixedly connected to the driving wheel, and the driving wheel and the driven wheel are connected by belt drive.

[0010] Preferably, an axial movement assembly is further provided between the shell and the frame, and the axial movement assembly is used to drive the shell to move along the axial direction of the roller.

[0011] Preferably, a radial moving assembly is provided between the shell and the axial moving assembly, and the radial moving assembly is used to drive the shell to move along the radial direction of the roller.

[0012] Preferably, the axially movable assembly includes an axially movable guide plate, an axially movable connecting plate and an axially movable telescopic rod. The axially movable guide plate is arranged on one side of the frame, and the axially movable guide plate extends along the axial direction of the rolling roller. The axially movable guide plate is slidably connected to the axially movable connecting plate. The axis of the axially movable telescopic rod is parallel to the axis of the rolling roller, and the fixed end of the axially movable telescopic rod is arranged on the radially movable guide plate, the telescopic end of the axially movable telescopic rod is fixedly connected to the axially movable connecting plate, and the outer shell is connected to the axially movable connecting plate.

[0013] Preferably, the radial movement assembly includes a radial movement guide plate, a radial movement connecting plate and a radial movement telescopic rod, the radial movement guide plate is arranged on the upper surface of the axial movement connecting plate, the radial movement guide plate extends along the radial direction of the rolling roller, the radial movement guide plate is slidingly connected to the radial movement connecting plate, the axis of the radial movement telescopic rod is perpendicular to the axis of the rolling roller, and the fixed end of the radial movement telescopic rod is arranged on the axial movement connecting plate, the telescopic end of the radial movement telescopic rod is fixedly connected to the radial movement connecting plate, and the outer shell is arranged on the upper surface of the radial movement connecting plate.

[0014] Preferably, a pressure sensor is provided between the radially movable guide plate and the radially movable connecting plate, and the pressure sensor is electrically connected to the power unit. When the pressure sensor detects that the pressure value is greater than the first preset value, the pressure sensor sends an electrical signal to the power unit. After receiving the electrical signal, the power unit controls the driven wheel to rotate around its axis at a preset angle.

[0015] The beneficial effects of the present invention are: The present invention provides a support column and a grinding block. The grinding block is arranged to be hinged on the outer periphery of the support column, and the grinding block is configured to be rotatable so that its grinding surface always maintains linear contact with the outer peripheral surface of the roller. Therefore, the grinding contact position of the grinding block and the roller will not cause the grinding block to no longer be in linear contact with the roller due to the different wear amounts at both ends of the grinding block, thereby ensuring the grinding quality and improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of a grinding device for aluminum foil rolling mill rolls of the present invention; Figure 2 It is a structural schematic diagram of a grinding component in a grinding device for a roller of an aluminum foil rolling mill according to the present invention; Figure 3 It is a structural schematic diagram of a grinding disc in a grinding device for a roller of an aluminum foil rolling mill according to the present invention; Figure 4 for Figure 3 The top view of Figure 5 for Figure 4 Middle AA section view; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a structural schematic diagram of a grinding block in a grinding device for a roller of an aluminum foil rolling mill according to the present invention; Figure 8 for Figure 7 Front view of Fig. 9 for Figure 8 Middle CC section view; Fig.10 for Figure 8 Middle DD section view; Fig.11 for Fig.10 Schematic diagram of the enlarged structure at E in the middle; Fig.12 for Fig.10 Schematic diagram of the enlarged structure at F in the middle; Fig.13 It is a structural schematic diagram of a driving component in a grinding device for an aluminum foil rolling mill roll according to the present invention; Fig.14 for Fig.13 Schematic diagram of the enlarged structure at G in the middle; Fig.15 for Fig.13 Schematic diagram of the enlarged structure at H in the middle.

[0017] in: 100, rack; 200, centering clamping assembly; 300, grinding assembly; 310, housing; 311, arc-shaped notch; 320, grinding disc; 321, groove; 330, support column; 340, damping ring; 350, grinding block; 360, first motor; 400, driving assembly; 410, first gear; 420, driven wheel; 430, transmission belt; 440, power unit; 441, hydraulic telescopic rod; 442, rack; 443, driving gear; 444, driving wheel; 445, belt; 446, oil circuit interface; 500, axial movement assembly; 510, axial movement guide plate; 520, axial movement connecting plate; 600, radial movement assembly; 610, radial movement guide plate; 620, radial movement connecting plate; 710, cooling liquid injection port; 720, cooling liquid recovery port; 1000. Roller. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] like Figure 1-Figure 15As shown, a grinding device for an aluminum foil rolling mill roll includes a frame 100, a centering clamping assembly 200 and a grinding assembly 300. The centering clamping assembly 200 is arranged on the frame 100, and the centering clamping assembly 200 is used to clamp the roll 1000 and make the roll 1000 rotate around its axis. The grinding assembly 300 includes a shell 310, a grinding disc 320, a support column 330 and a damping ring 340. The shell 310 is slidably arranged on the frame 100, and the grinding disc 320 is rotatably arranged on the inner side of the shell 310. The grinding disc 320 can rotate around its axis. There are multiple support columns 330, and the multiple support columns 330 rotate around the axis of the grinding disc 320. The grinding disc 320 is arranged at equal intervals in the circumferential direction. Specifically, a plurality of grooves 321 are opened at equal intervals on the outer circumference of the grinding disc 320, and the plurality of grooves 321 correspond to the plurality of support columns 330 one by one, and the support columns 330 are rotatably arranged in the grooves 321. Damping rings 340 are coaxially arranged at both ends of the support columns 330, and a grinding block 350 is hingedly connected on the outer circumference of the support column 330 and located between the two damping rings 340. Both ends of the grinding block 350 are in frictional contact with the damping ring 340 on the corresponding side, and the grinding block 350 is configured to be rotatable so that its grinding surface always maintains line contact with the outer circumferential surface of the rolling roller 1000, and the grinding surface of the grinding block 350 is an arc surface.

[0022] When in use, the staff first fixes the roller 1000 on the centering clamping assembly 200 so that the axis of the roller 1000 coincides with the rotation axis of the centering clamping assembly 200, and then clamps the roller 1000 on the centering clamping assembly 200. Next, the staff makes the shell 310 slide along the frame 100 until the arc grinding surface of the grinding block 350 is tangent to the outer circumference of the roller 1000. At this time, the grinding surface of the grinding block 350 and the outer circumference of the roller 1000 are in contact with each other and the contact form is line contact. Next, the centering clamping assembly 200 drives the roller 1000 to rotate around its axis, and at the same time, the grinding disc 320 rotates around its own axis. At this time, the roller 1000 and the grinding disc 320 rotates and the outer peripheral surface of the roller 1000 slides relative to the grinding surface of the grinding disk 320, thereby grinding the outer peripheral surface of the roller 1000 and gradually removing the defects on the outer peripheral surface of the roller 1000. While the grinding disk 320 rotates circumferentially, the staff is also required to push the shell 310 to move slowly along the axis of the roller 1000, thereby completing the grinding of the entire outer peripheral surface of the roller 1000. When the entire surface layer with defects of the roller 1000 is ground away by the grinding block 350, the centering clamping assembly 200 stops rotating, the grinding disk 320 stops rotating, and then the roller 1000 is removed from the centering clamping assembly 200, and then the roller 1000 is installed on the rolling mill.

[0023] It can be understood that, since the grinding block 350 moves along the axis of the roller 1000, the two ends of the grinding block 350 successively contact the defective surface layer of the rough surface of the roller 1000. Inevitably, the wear amount of the end of the grinding block 350 that first contacts the rough surface of the roller 1000 is greater than the wear amount of the end that contacts the rough surface of the roller 1000 later. This will cause the grinding surface of the grinding block 350 to form an inclined surface with a certain slope along the axis direction of the grinding disk 320. At this time, The grinding surface of the grinding block 350 no longer maintains line contact with the outer peripheral surface of the roller 1000, which will cause the grinding efficiency of the grinding block 350 to decrease. To solve this problem, in this embodiment, the grinding block 350 is arranged to be hinged on the outer periphery of the support column 330, and the grinding block 350 is configured to be able to rotate so that its grinding surface always maintains line contact with the outer peripheral surface of the roller 1000. Specifically, during the process of the grinding block 350 grinding the outer peripheral surface of the roller 1000, the grinding process is monitored in real time. The grinding surface of the grinding block 350 is monitored to determine whether there is line contact between the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000. When it is monitored that there is no line contact between the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000, the staff manually or uses a driving member to push the housing 310 to move along the radial direction of the roller 1000, so that the housing 310 and the grinding disc 320 are close to the axis of the roller 1000. At this time, the grinding block 350 is forced to rotate around its hinge point so that the grinding surface of the grinding block 350 is in contact with the outer peripheral surface of the roller 1000 again. The peripheral surface maintains line contact. During the grinding process, it is necessary to monitor in real time whether there is line contact between the grinding block 350 and the peripheral surface of the roller 1000. Whenever the grinding block 350 is worn to the point where its grinding surface is no longer in line contact with the peripheral surface of the roller 1000, the outer shell 310 is pushed so that the outer shell 310 and the grinding disk 320 are close to the axis of the roller 1000 until the grinding block 350 rotates around its hinge point so that the grinding surface of the grinding block 350 maintains line contact with the peripheral surface of the roller 1000 again.

[0024] It should also be noted that, in order to monitor whether the grinding surface of the grinding block 350 is in line contact with the outer peripheral surface of the roller 1000, a pressure sensor can be provided between the housing 310 and the frame 100. The pressure sensor is connected to an alarm (the alarm is used to send out an alarm signal to remind the staff that the grinding block 350 and the roller 1000 are no longer in line contact) or is electrically connected to a driving member (such as an electric telescopic rod, a hydraulic telescopic rod, etc.). Taking the electrical connection between the pressure sensor and the driving member as an example, in the initial state, the driving member applies a force to make the grinding of the grinding block 350 The pressure between the grinding surface and the outer peripheral surface of the roller 1000 is maintained at a preset pressure. When the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000 change from line contact to point contact, the pressure at the contact position is less than the preset pressure. At this time, the pressure sensor sends an electrical signal to the driving member. After receiving the electrical signal, the driving member pushes the shell 310 close to the axis of the roller 1000 until the pressure between the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000 becomes the preset pressure again. The driving member stops pushing the shell 310 and keeps the shell 310 at the current position.

[0025] It should also be noted that if Fig.11 As shown, the damping ring 340 is provided to enable the grinding block 350 to maintain the current deflection angle through the friction between the damping ring 340 and the grinding block 350 after the grinding block 350 rotates around its hinge point to a certain angle, thereby preventing the grinding block 350 from rocking back and forth during the circumferential rotation of the grinding disk 320, thereby preventing the grinding block 350 from colliding with the outer peripheral surface of the roller 1000 and causing new surface defects. The damping ring 340 can specifically be a rubber ring.

[0026] It should also be noted that, in order to drive the grinding disc 320 to rotate, specifically, a first motor 360 can be set outside the housing 310, so that the output end of the first motor 360 is coaxially fixedly connected to the grinding disc 320, thereby driving the grinding disc 320 to rotate through the first motor 360.

[0027] In a further embodiment, Figure 7 and Fig. 9 As shown, there are multiple grinding blocks 350 hinged on the periphery of each support column 330 and located between two damping rings 340. The multiple grinding blocks 350 are arranged at equal intervals around the axis of the support column 330, and the support column 330 can rotate around its own axis.

[0028] During the process of grinding the outer peripheral surface of the rolling roller 1000 by the grinding block 350, if the grinding surface of the currently used grinding block 350 is severely worn, the support column 330 can be rotated around its own axis by a certain angle to switch to a new grinding block 350, thereby ensuring the grinding quality.

[0029] In a further embodiment, Fig.13 As shown, a driving assembly 400 is disposed inside the housing 310 , and the driving assembly 400 is used to drive the support column 330 to rotate around the axis of the support column 330 .

[0030] In order to determine whether the grinding surface of the grinding block 350 is severely worn, specifically, in the present embodiment, the judgment is made based on the grinding time of the grinding block 350. If the current usage time of the grinding block 350 reaches the scrap time, the driving assembly 400 drives the support column 330 to rotate a certain angle around its own axis to switch to a new grinding block 350. Next, the new grinding block 350 is used to grind the outer peripheral surface of the rolling roller 1000.

[0031] In a further embodiment, Figure 13-Figure 15 As shown, the driving assembly 400 includes a first gear 410, a driven wheel 420, a transmission belt 430 and a power unit 440. There are multiple first gears 410, and the multiple first gears 410 correspond one-to-one to the multiple support columns 330. The first gear 410 is coaxially arranged at one end of the support column 330. The transmission belt 430 is located on the outside of the first gear 410 and is meshed with the multiple first gears 410. The driven wheel 420 is coaxially arranged at one end of any support column 330. The power unit 440 is arranged inside the housing 310. The power unit 440 is connected to the driven wheel 420 for driving the driven wheel 420 to rotate around its axis.

[0032] When in use, start the power unit 440, the power unit 440 drives the driven wheel 420 to rotate around the axis of the driven wheel 420, the driven wheel 420 drives the first gear 410 coaxial therewith to rotate, the first gear 410 drives all the first gears 410 meshing with the transmission belt 430 to rotate through the transmission belt 430, so that each first gear 410 rotates around its own axis, so that the first gear 410 drives the corresponding support column 330 to rotate, and the support column 330 drives the grinding block 350 to rotate a certain angle to switch the grinding block 350 in contact with the roller 1000.

[0033] In a further embodiment, Figure 13-Figure 15 As shown, the power unit 440 includes a hydraulic telescopic rod 441, a rack 442, a driving gear 443, a driving wheel 444 and a belt 445. The hydraulic telescopic rod 441 is arranged inside the housing 310, and the telescopic end of the hydraulic telescopic rod 441 is fixedly connected to the rack 442, the rack 442 is meshed with the driving gear 443, and the driving gear 443 is rotatably connected to the inner side surface of the outside. The driving gear 443 is also coaxially fixedly connected to the driving wheel 444, and the driving wheel 444 is connected to the driven wheel 420 through a belt 445.

[0034] When in use, the telescopic end of the hydraulic telescopic rod 441 extends outward to drive the rack 442 to move upward, and the rack 442 drives the driving gear 443 to rotate around the axis of the driving gear 443 by meshing with the driving gear 443. The driving gear 443 drives the driving wheel 444 to rotate synchronously, and the driving wheel 444 drives the driven wheel 420 to rotate through the belt 445, thereby achieving the purpose of driving the driven wheel 420 to rotate around the axis of the driven wheel 420.

[0035] It should also be noted that the hydraulic oil chamber of the hydraulic telescopic rod 441 is also connected to the oil circuit interface 446 via an oil supply hose. When hydraulic oil is filled into the hydraulic telescopic rod 441 through the oil circuit interface 446, the telescopic end of the hydraulic telescopic rod 441 extends outward. When the hydraulic oil in the hydraulic telescopic rod 441 is sucked out through the oil circuit interface 446, the telescopic end of the hydraulic telescopic rod 441 contracts toward the fixed end.

[0036] In a further embodiment, Figure 1 As shown, an axial moving assembly 500 is also provided between the housing 310 and the frame 100, and the axial moving assembly 500 is used to drive the housing 310 to move along the axial direction of the roller 1000. A radial moving assembly 600 is provided between the housing 310 and the axial moving assembly 500, and the radial moving assembly 600 is used to drive the housing 310 to move along the radial direction of the roller 1000. The axial moving assembly 500 includes an axial moving guide plate 510, an axial moving connecting plate 520 and an axial moving telescopic rod (not shown in the figure). The axial moving guide plate 510 is provided on one side of the frame 100, and the axial moving guide plate 510 extends along the axial direction of the roller. The axial moving guide plate 510 is slidably connected to the axial moving connecting plate 520, and the axis of the axial moving telescopic rod is parallel to the axis of the roller, and the fixed end of the axial moving telescopic rod is provided in the radial direction. On the movable guide plate 610, the telescopic end of the axially movable telescopic rod is fixedly connected to the axially movable connecting plate 520, the shell 310 is connected to the axially movable connecting plate 520, the radially movable assembly 600 includes a radially movable guide plate 610, a radially movable connecting plate 620 and a radially movable telescopic rod (not shown in the figure), the radially movable guide plate 610 is arranged on the upper surface of the axially movable connecting plate 520, the radially movable guide plate 610 extends along the radial direction of the rolling roller, the radially movable guide plate 610 is slidingly connected to the radially movable connecting plate 620, the axis of the radially movable telescopic rod is perpendicular to the axis of the rolling roller, and the fixed end of the radially movable telescopic rod is arranged on the axially movable connecting plate 520, the telescopic end of the radially movable telescopic rod is fixedly connected to the radially movable connecting plate 620, and the shell 310 is arranged on the upper surface of the radially movable connecting plate 620.

[0037] Before clamping the roller 1000 onto the centering clamping assembly 200, the staff first makes the radially movable telescopic rod drive the radially movable connecting plate 620 and the outer shell 310 away from the rotation axis of the centering clamping assembly 200 to leave installation space. After the roller 1000 is clamped onto the centering clamping assembly 200, the radially movable telescopic rod is moved close to the axis of the roller 1000 until the grinding surface of the grinding block 350 is in line contact with the outer peripheral surface of the roller 1000 and a preset pressure is maintained between the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000. Next, the axially movable telescopic rod is started, and the telescopic end of the axially movable telescopic rod extends outward and pushes the axially movable connecting plate 520 to move from one end of the roller 1000 to the other end. The axially movable connecting plate 520 moves synchronously together with the radially movable guide plate 610, the radially movable connecting plate 620, and the outer shell 310, thereby completing the grinding of the entire outer peripheral surface of the roller 1000.

[0038] In a further embodiment, a pressure sensor is provided between the radially movable guide plate 610 and the radially movable connecting plate 620, and the pressure sensor is electrically connected to the power unit 440. When the pressure sensor detects that the pressure value is greater than the first preset value, the pressure sensor sends an electrical signal to the power unit 440. After receiving the electrical signal, the power unit 440 controls the driven wheel 420 to rotate around its axis at a preset angle. Specifically, the pressure sensor can be electrically connected to the hydraulic telescopic rod 441.

[0039] If the defect on the outer circumference of the roller 1000 is a protrusion formed by extrusion somewhere, when the grinding block 350 contacts the protrusion, the contact pressure between the grinding block 350 and the roller 1000 will increase to be greater than the first preset value. At this time, the pressure sensor sends an electrical signal to the power unit 440. After receiving the electrical signal, the power unit 440 controls the driven wheel 420 to rotate around its axis by a preset angle to replace the new grinding block 350, thereby ensuring that the grinding surface of the grinding block 350 will not be scrapped due to severe wear before the protrusion is completely polished away.

[0040] It should also be noted that, in the present embodiment, the pressure sensor can also be electrically connected to the first motor 360. When the pressure sensor detects that the contact pressure between the grinding block 350 and the rolling roller 1000 increases to be greater than the first preset value, the pressure sensor sends an electrical signal to the first motor 360. After receiving the electrical signal, the first motor 360 reduces its own rotation speed and increases its rotation torque to prevent the first motor 360 from being stuck due to excessive resistance.

[0041] It is also supplemented that, in the above embodiment, the pressure sensor arranged between the shell 310 and the frame 100 to monitor whether there is line contact between the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000 can be replaced by the pressure sensor in this embodiment. In the initial state, the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000 maintain a preset pressure. When the grinding surface of the grinding block 350 and the outer peripheral surface of the roller 1000 change from line contact to point contact, the contact pressure decreases to less than the preset pressure. At this time, the telescopic end of the radially movable telescopic rod drives the radially movable connecting plate 620 and the shell 310 to move toward the direction close to the axis of the roller 1000 until the pressure between the grinding block 350 and the outer peripheral surface of the roller 1000 is equal to the preset pressure again.

[0042] In a further embodiment, Figure 2 As shown, a coolant injection port 710 is provided at the upper end of the outer shell 310, and the coolant injection port 710 is directed toward the position where the grinding block 350 and the rolling roller 1000 are tangent. At this time, the coolant sprayed from the coolant injection port 710 can directly act on the position where the grinding block 350 and the rolling roller 1000 are tangent to cool the position. In addition, a coolant recovery port 720 is provided at the lower part of the outer shell 310, and the coolant recovery port 720 is connected to a waste liquid barrel for collecting used coolant into the waste liquid barrel.

[0043] It should also be noted that in order to reduce the splashing of the coolant, the tangential force at the tangent position between the roller 1000 and the grinding block 350 can be directed downward, which can reduce the speed difference between the coolant, the roller 1000 and the grinding block 350 when they are in contact, thereby reducing the splashing of the coolant.

[0044] It should also be noted that in order to reduce the splashing of coolant, specifically, the side of the shell 310 close to the roller 1000 can be made into an arc-shaped groove 311, and the curvature of the arc-shaped groove 311 is adapted to the diameter of the roller 1000 to reduce the amount of coolant flowing out of the gap between the roller 1000 and the arc-shaped groove 311.

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A grinding device for aluminum foil rolling mill rolls, characterized in that: include: frame; A centering clamping assembly, which is arranged on the frame and is used to clamp the roll and make the roll rotate around its axis; The grinding assembly includes an outer shell, a grinding disc, a support column and a damping ring. The outer shell is slidably arranged on the frame, and the grinding disc is rotatably arranged on the inner side of the outer shell. The axis of the grinding disc is horizontal and the grinding disc can rotate around its axis. There are multiple support columns, and the multiple support columns are circumferentially and evenly spaced around the axis of the grinding disc. Damping rings are coaxially arranged at both ends of the support column. A grinding block is hinged on the outer periphery of the support column and located between the two damping rings. Both ends of the grinding block are in friction contact with the damping ring on the corresponding side, and the grinding block is configured to be able to rotate so that the grinding surface of the grinding block always maintains line contact with the outer peripheral surface of the roller, and the grinding surface of the grinding block is an arc surface.

2. The grinding device for aluminum foil rolling mill roll according to claim 1, characterized in that: There are multiple grinding blocks hingedly connected between the two damping rings on the outer periphery of each support column, and the multiple grinding blocks are arranged at equal intervals around the axis of the support column; The support column can rotate around its own axis.

3. The grinding device for aluminum foil rolling mill roll according to claim 1, characterized in that: A driving assembly is arranged inside the shell, and the driving assembly is used to drive the supporting column to rotate around the axis of the supporting column.

4. The grinding device for aluminum foil rolling mill roll according to claim 3, characterized in that: The driving assembly includes a first gear, a driven wheel, a transmission belt and a power unit. There are multiple first gears, and the multiple first gears correspond to the multiple support columns one by one. The first gear is coaxially arranged at one end of the support column. The transmission belt is located on the outside of the first gear and is meshed with the multiple first gears. The driven wheel is coaxially arranged at one end of any support column. The power unit is arranged inside the shell, and the power unit is connected to the driven wheel power to drive the driven wheel to rotate around its axis.

5. The grinding device for aluminum foil rolling mill roll according to claim 4, characterized in that: The power unit includes a hydraulic telescopic rod, a rack, a driving gear, a driving wheel and a belt. The hydraulic telescopic rod is arranged inside the shell. The telescopic end of the hydraulic telescopic rod is fixedly connected to the rack. The rack is meshed with the driving gear. The driving gear is rotatably connected to the inner side surface of the outside. The driving gear is also coaxially fixedly connected to the driving wheel. The driving wheel and the driven wheel are connected through a belt drive.

6. The grinding device for aluminum foil rolling mill roll according to claim 5, characterized in that: An axial moving assembly is also provided between the shell and the frame, and the axial moving assembly is used to drive the shell to move along the axial direction of the roller.

7. The grinding device for aluminum foil rolling mill roll according to claim 6, characterized in that: A radial moving assembly is arranged between the shell and the axial moving assembly, and the radial moving assembly is used for driving the shell to move along the radial direction of the roller.

8. The grinding device for aluminum foil rolling mill roll according to claim 7, characterized in that: The axial movement assembly includes an axial movement guide plate, an axial movement connecting plate and an axial movement telescopic rod. The axial movement guide plate is arranged on one side of the frame, and the axial movement guide plate extends along the axial direction of the rolling roller. The axial movement guide plate is slidably connected to the axial movement connecting plate. The axis of the axial movement telescopic rod is parallel to the axis of the rolling roller, and the fixed end of the axial movement telescopic rod is arranged on the radial movement guide plate. The telescopic end of the axial movement telescopic rod is fixedly connected to the axial movement connecting plate, and the outer shell is connected to the axial movement connecting plate.

9. The grinding device for aluminum foil rolling mill roll according to claim 8, characterized in that: The radial movement assembly includes a radial movement guide plate, a radial movement connecting plate and a radial movement telescopic rod. The radial movement guide plate is arranged on the upper surface of the axial movement connecting plate. The radial movement guide plate extends along the radial direction of the rolling roller. The radial movement guide plate is slidably connected to the radial movement connecting plate. The axis of the radial movement telescopic rod is perpendicular to the axis of the rolling roller, and the fixed end of the radial movement telescopic rod is arranged on the axial movement connecting plate. The telescopic end of the radial movement telescopic rod is fixedly connected to the radial movement connecting plate, and the outer shell is arranged on the upper surface of the radial movement connecting plate.

10. The grinding device for aluminum foil rolling mill roll according to claim 9, characterized in that: A pressure sensor is provided between the radially movable guide plate and the radially movable connecting plate. The pressure sensor is electrically connected to the power unit. When the pressure sensor detects that the pressure value is greater than a first preset value, the pressure sensor sends an electrical signal to the power unit. After receiving the electrical signal, the power unit controls the driven wheel to rotate around its axis at a preset angle.

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