Laser on-line automatic control roller surface cleaning device and using method thereof

Abstract

The invention relates to the technical field of roller cleaning devices, in particular to a laser on-line automatic control roller surface cleaning device which comprises a laser assembly used for emitting laser to clean the roller surface of a pressing roller. The visual monitoring assembly is used for collecting an image of the to-be-cleaned roller surface; the laser assembly is electrically connected with the visual monitoring assembly, and a to-be-cleaned roller surface sequentially passes through the visual monitoring assembly and the laser assembly. By using the laser assembly and the visual monitoring assembly, automatic cleaning of the roller surface is achieved, labor is saved, the working position of the laser assembly can be accurately controlled through the visual monitoring assembly, more energy is concentrated and used for actual work, energy waste is reduced, and the working efficiency is improved. In addition, the invention further discloses a using method of the laser on-line automatic control roller surface cleaning device.

Description

Technical Field

[0001] The present invention relates to the technical field of roller cleaning devices, and in particular to a laser online automatic control roller surface cleaning device and a use method thereof. Background Art

[0002] In the production of lithium batteries, the rolling process of lithium battery pole pieces is an indispensable process. However, in this process, the material coated on the pole piece often leaves residues on the roller surface of the roller press due to the effect of adhesion. If these residues are not handled in time, it will have a serious impact on the surface quality of the pole piece, and may cause quality problems such as pits and cracks, which will affect the performance and safety of the battery.

[0003] The existing roller surface cleaning mode of the roller press: non-woven fabric wiping roller + roller surface scraper; the existing roller wiping technology has the following shortcomings: 1. It is difficult to completely remove tiny particle pollutants on the roller surface, and the cleaning effect is relatively limited, especially in high-precision occasions; 2. During use, the contact between the scraper blade and the roller may cause scratches or damage to the roller surface, affecting the service life and production quality of the roller. At the same time, the scraper blade will continue to wear and tear over time, causing the scraper blade to be unable to adhere closely to the roller surface and thus unable to perform the cleaning function; the debris from the blade wear will also cause secondary pollution; 3. The non-woven fabric and scraper are not replaced regularly, thereby increasing the maintenance cost and production downtime, affecting production capacity; 4. The existing roller wiping mode does not monitor the roller surface cleaning, and manually monitors abnormal material quality or broken belts after rolling to determine whether it is clean and whether the non-woven fabric and scraper need to be replaced.

[0004] Based on this, there is an urgent need to invent a laser online closed-loop controlled roller surface cleaning device and a method of using the same to solve the aforementioned technical problems. Summary of the invention

[0005] One of the purposes of the present invention is to provide a laser online automatic control roller surface cleaning device to address the deficiencies of the prior art, which can realize automatic cleaning of the roller surface and accurately control the roller surface cleaning area.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] Provided is a laser online automatic control roller surface cleaning device, comprising a laser component for emitting laser to clean the roller surface of a pressure roller; a visual monitoring component for collecting an image of the roller surface to be cleaned; the laser component is electrically connected to the visual monitoring component, and the roller surface to be cleaned passes through the visual monitoring component and the laser component in sequence.

[0008] Specifically, the visual monitoring component includes a first camera and a controller, and the laser component and the motion component are electrically connected to the first camera through the controller.

[0009] Specifically, the visual monitoring component also includes a second camera disposed behind the laser component, the second camera is used to collect an image of the roller surface after cleaning, and the second camera is electrically connected to the controller.

[0010] Specifically, it comprises a laser protection component, wherein the laser protection component comprises a laser protection cover, wherein the laser protection cover is provided with a laser hole and a dust removal hole, and the laser hole corresponds to the position of the laser emitted by the laser component.

[0011] Specifically, the laser assembly and the laser protective cover are fixedly connected via a connecting plate.

[0012] Specifically, the motion assembly includes a first guide rail, a motor, a first fixed support plate, a second fixed support plate, a slide, a belt, a driving wheel and a driven wheel. The first fixed support plate is arranged at both ends of the pressure roller, and the first fixed support plates at both ends are connected through the second fixed support plate. The first guide rail is arranged on the second fixed support plate, and the slide is arranged on the first guide rail. The driving wheel and the driven wheel are respectively located on opposite sides of the first guide rail. The belt is installed on the driving wheel and the driven wheel, and the belt is fixedly connected to the slide. The motor is drivingly connected to the driving wheel to rotate the driving wheel, and the slide carries the laser assembly.

[0013] Specifically, the first camera and the second camera are provided with adjustment brackets, and the first camera and the second camera are adjustably fixed on a camera beam through the adjustment brackets, and the camera beam is arranged parallel to the roller surface.

[0014] Specifically, the adjustment bracket includes an upper part and a lower part, and the upper part is fixedly connected to the lower part and jointly surrounded by the camera beam. The upper part is provided with a sliding groove, and the extension direction of the sliding groove is perpendicular to the extension direction of the camera beam. The first camera and the second camera are correspondingly provided with sliding protrusions, and waist-shaped holes are provided in the sliding grooves. The extension direction of the waist-shaped holes is parallel to the extension direction of the sliding grooves, and the sliding protrusions are provided with threaded holes at the corresponding positions of the waist-shaped holes.

[0015] Specifically, the size of the laser hole corresponds to the irradiation range of the laser emitted by the laser assembly, and the laser protective cover is installed on the second guide rail.

[0016] The beneficial effects of the present invention are as follows: through the use of a laser component and a visual monitoring component, the present application can clean the roller surface and accurately locate the position of the residue through the visual monitoring component, thereby controlling the working position of the laser component to achieve automatic cleaning of the roller surface, saving labor, and more energy in the laser is concentrated and used for actual work, reducing energy waste.

[0017] The second object of the present invention is to provide a method for using the laser online automatic control roller surface cleaning device according to any one of claims 1 to 9, comprising the following steps:

[0018] S1: Start the pressure roller to rotate, use the visual monitoring component to perform image recognition on the roller surface and process the image signal to divide the roller surface into a to-be-cleaned area and a clean area, transmit the processed signal to the laser component and the motion component respectively, the motion component moves the laser component to the to-be-cleaned area, the laser protective cover fixedly connected to the laser component moves synchronously, the laser component performs laser cleaning on the to-be-cleaned area, the laser protective cover blocks the laser refracted and reflected by the laser component, and at the same time the vacuum cleaner is started to form a vacuum in the laser protective cover to absorb dust formed during laser cleaning;

[0019] S2: Obtain the cleanliness of the roller surface after laser cleaning and the position offset of laser cleaning, adjust the energy density and cleaning times of laser cleaning, and correct the position offset of laser cleaning until the offset reaches the required range and the roller surface after cleaning meets the cleanliness requirements.

[0020] Specifically, in step S2, an image signal of the roller surface after laser cleaning is obtained by the second camera, and the image signal is transmitted to the controller. According to the image signal of the roller surface before laser cleaning and the image signal of the roller surface after laser cleaning obtained by the first camera, the deviation between the change in preset cleanliness and the actual change in cleanliness before and after laser cleaning and the position offset of laser cleaning are calculated. According to the deviation between the change in preset cleanliness and the actual change in cleanliness and the position offset, the energy density and the number of cleanings of laser cleaning are adjusted, and the position offset of laser cleaning is corrected. The above steps are repeated to realize adaptive adjustment of laser cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 This is one of the structural schematic diagrams of implementation mode 1 of the present invention;

[0023] Figure 2This is the second structural diagram of implementation mode 1 of the present invention;

[0024] Figure 3 This is one of the structural schematic diagrams of implementation mode 2 of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the motion component and the laser protection component in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the motion component in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the laser protective cover in the present invention;

[0028] Figure 7 This is one of the structural schematic diagrams of the adjusting bracket in the present invention;

[0029] Figure 8 This is the second structural schematic diagram of the adjusting bracket in the present invention.

[0030] Among them: 1-laser assembly; 2-visual monitoring assembly; 21-first camera; 22-controller; 23-second camera; 24-adjusting bracket; 241-upper part; 2411-sliding groove; 2412-sliding protrusion; 24121-threaded hole; 24111-waist-shaped hole; 242-lower part; 25-camera beam; 3-motion assembly; 31-first guide rail; 32-motor; 33-first fixed support plate; 34-second fixed support plate; 35-slide; 36-belt; 37-driving wheel; 38-driven wheel; 4-laser protection assembly; 41-laser protection cover; 411-laser hole; 412-dust removal hole; 42-connecting plate; 43-second guide rail. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings, but this is not intended to limit the present invention.

[0033] The applicant found that when cleaning the roller surface of the roller press, the general method used is a non-woven fabric wiping roller + roller surface scraper; however, the existing roller wiping technology has shortcomings: 1. It is difficult to completely remove tiny particle contaminants on the roller surface, and the cleaning effect is relatively limited, especially in high-precision occasions; 2. During use, the contact between the scraper blade and the roller may cause scratches or damage to the roller surface, affecting the service life and production quality of the roller. At the same time, the scraper blade will continue to wear over time, causing the scraper blade to be unable to adhere to the roller surface and fail to perform the cleaning function; the debris from the blade wear will also cause secondary pollution; 3. The non-woven fabric and scraper are not replaced regularly, thereby increasing the maintenance cost and production downtime, affecting production capacity; 4. The existing roller wiping mode does not monitor the roller surface cleaning, and manually monitors the abnormal quality of the material after rolling or the broken belt to judge whether it is clean and whether the non-woven fabric and scraper need to be replaced.

[0034] In order to solve these problems, some existing technologies use a full coverage method for laser cleaning. However, in actual applications, since the laser fully covers the roller surface for cleaning, many lasers are not aimed at the cleaning target, resulting in energy waste. In addition, since there is no control over focused cleaning, laser cleaning is repeated for positions that do not require laser cleaning, while the cleaning effect on some positions is insufficient, resulting in low cleaning efficiency and poor cleaning effect, which is prone to missed cleaning problems. Using a higher energy density laser for cleaning may cause damage to the roller surface.

[0035] Implementation Method 1

[0036] like Figure 1-8 As shown, the present application provides a laser online automatic control roller surface cleaning device, including a laser component 1, used to emit laser to clean the roller surface of the pressure roller; a visual monitoring component 2, used to collect the image of the roller surface to be cleaned; the laser component 1 is electrically connected to the visual monitoring component 2, and the roller surface to be cleaned passes through the visual monitoring component 2 and the laser component 1 in sequence.

[0037] This application uses the visual monitoring component 2 to monitor the roller surface, and then uses the laser component 1 to perform laser cleaning, accurately identifies the location of the residue, and then uses the laser component 1 to perform precise cleaning, and the energy consumption of the laser component 1 can be effectively reduced. Because more energy is concentrated and used for actual work, rather than wasted on scattered or deviated light, this design can adapt to laser beams of different powers and wavelengths, and has strong versatility and adaptability.

[0038] Specifically, the laser assembly 1 includes a laser head and a laser generator. The laser generator generates a laser with a specified power and transmits it to the laser head through an optical fiber. The laser head controls the size and movement of the light spot.

[0039] Specifically, the visual monitoring component 2 includes a first camera 21 and a controller 22. The laser component 1 and the motion component 3 are electrically connected to the first camera 21 through the controller 22. When the roller surface to be cleaned moves to the first camera 21, the first camera 21 identifies the roller surface, monitors the state of the roller surface, marks the positions of residues such as particles and impurities in the roller surface, and identifies these areas as areas to be cleaned. The first camera 21 sends these signals to the controller 22, and the controller 22 processes these signals. When the roller surface to be cleaned rotates to the laser component 1, signals are sent to the laser component 1 and the motion component 3 respectively. The motion component 3 controls the laser component 1 to move and position to the positions corresponding to the particles and impurities. The laser component 1 emits laser to cover the area to be cleaned. The high-energy laser beam evaporates or ablates the particles and impurities on the surface of the pressure roller to complete the cleaning of the roller surface.

[0040] When the pressure roller is relatively large, a plurality of first cameras 21 may be provided to cover the field of view of the entire roller surface. The plurality of first cameras 21 transmit image signals to the controller 22 to splice images from different first cameras 21 .

[0041] like Figure 4 and 6 As shown, preferably, a laser protection component 4 is also included, the laser protection component 4 includes a laser protection cover 41 and a dust collector, the laser protection cover 41 is provided with a laser hole 411 and a dust removal hole 412, and the laser hole 411 corresponds to the laser position emitted by the laser component 1. The size of the laser hole 411 corresponds to the laser irradiation range emitted by the laser component 1, and the laser irradiation range refers to the range of the laser irradiation position by changing the emission angle when the laser component 1 does not move.

[0042] When the laser is irradiated to the roller surface, a part of the laser will be refracted and reflected, and the refracted and reflected laser will enter the operating area. In order to prevent the laser from causing harm to the operator or surrounding equipment, a laser protection component 4 to prevent laser overflow will be installed at the place where the laser is irradiated. The laser passes through the laser hole 411 of the laser protection cover 41 and is shot onto the roller surface. The angle of the laser changes after refraction and reflection. Controlling the angle between the laser and the roller surface can change the direction of refraction and reflection of the laser, thereby reducing the laser reflection out of the laser protection component 4. The dust removal hole 412 provided in the present application is connected to a vacuum cleaner to form a negative pressure in the laser protection cover 41. The dust and particles left by laser cleaning will be sucked away to prevent air pollution. The dust suction port is arranged at the tail of the laser protection cover 41 and at both ends of the laser protection cover 41 opposite to the laser hole 411, which can optimize the flow path of the airflow and reduce dust deposition. The size of the laser hole 411 is controlled to correspond to the irradiation range of the laser in order to reduce the size of the laser hole 411. When the laser hole 411 is larger, the probability of the laser being emitted from the laser hole 411 after reflection and refraction increases, and the larger the laser hole 411, the easier it is for air to flow into the laser protective cover 41, which reduces the effect of the vacuum cleaner in sucking away dust. Therefore, in order to ensure the protective effect of the laser protective cover 41 and the cleaning effect of the vacuum cleaner, the size of the laser hole 411 needs to be controlled. For example, the minimum distance between the laser hole 411 and the laser irradiation range can be set to be greater than 4 mm and less than 40 mm.

[0043] like Figure 4 As shown, preferably, the laser assembly 1 and the laser protective cover 41 are fixedly connected via a connecting plate 42, and the laser protective cover 41 is mounted on a second guide rail 43. The laser protective cover 41 is mounted on the second guide rail 43 so that it can move smoothly. The laser protective cover 41 and the laser assembly 1 are fixedly connected so that the laser protective cover 41 moves with the laser assembly 1, ensuring that dust formed during laser cleaning can be cleaned in time.

[0044] like Figure 4 and 5As shown, specifically, the motion component 3 includes a first guide rail 31, a motor 32, a first fixed support plate 33, a second fixed support plate 34, a slide 35, a belt 36, a driving wheel 37 and a driven wheel 38. The first fixed support plate 33 is arranged at both ends of the roller surface, and the first fixed support plates 33 at both ends are connected by the second fixed support plate 34. The first guide rail 31 is arranged on the second fixed support plate 34, and the slide 35 is arranged on the first guide rail 31. The driving wheel 37 and the driven wheel 38 are respectively located on opposite sides of the first guide rail 31. The belt 36 is installed on the driving wheel 37 and the driven wheel 38, and the belt 36 is fixedly connected to the slide 35. The motor 32 is drivingly connected to the driving wheel 37 to rotate the driving wheel 37, and the slide 35 carries the laser component 1. When the motion component 3 receives the signal and needs to adjust the position of the laser component 1, the motor 32 controls the rotation speed and direction of the driving wheel 37, so that the belt 36 moves between the driving wheel 37 and the driven wheel 38, and the slide 35 is fixedly connected to the belt 36. The movement of the belt 36 drives the slide 35 to move on the guide rail to achieve precise positioning of the slide 35, thereby controlling the position of the laser component 1.

[0045] In some embodiments, the first guide rail 31 connected to the laser assembly 1 and the second guide rail 43 connected to the laser protection assembly 4 are both arranged on the end plates at both ends of the fixed pressure roller, and the laser assembly 1 and the laser protection assembly 4 move with the movement of the pressure roller.

[0046] The present application provides a method for using a laser online automatic control roller surface cleaning device, comprising the following steps:

[0047] S1: Start the pressure roller to rotate, use the visual monitoring component 2 to perform image recognition on the roller surface and process the image signal to divide the roller surface into a to-be-cleaned area and a clean area. The to-be-cleaned area is the area on the roller surface where the electrode coating remains, and the clean area is the area on the roller surface without any residue. The processed signals are transmitted to the laser component 1 and the motion component 3 respectively. The motion component 3 moves the laser component 1 to the to-be-cleaned area, and the laser protective cover 41 fixedly connected to the laser component 1 moves synchronously. The laser component 1 performs laser cleaning on the to-be-cleaned area, and the laser protective cover 41 blocks the laser refracted and reflected by the laser component 1. At the same time, the vacuum cleaner is started to form a vacuum in the laser protective cover 41 to absorb dust formed during laser cleaning;

[0048] S2: Obtain the cleanliness of the roller surface after laser cleaning and the position offset of laser cleaning, adjust the energy density and cleaning times of laser cleaning, and correct the position offset of laser cleaning until the offset reaches the required range and the roller surface after cleaning meets the cleanliness requirements.

[0049] In step S2, the cleanliness deviation of the roller surface after laser cleaning and the position offset of the laser cleaning can be obtained through manual observation.

[0050] when re

[0051] Through the above steps, when the roller surface cleaning device is stable, automatic control can be achieved, and laser cleaning consumes less energy, which can save energy. The focused cleaning of the area to be cleaned makes the cleaning effect after laser cleaning good, and the efficiency of laser cleaning is improved because there is no need to clean the clean area.

[0052] Implementation Method 2

[0053] The difference from implementation mode 1 is that: Figure 3 As shown, in this embodiment, the visual monitoring component 2 also includes a second camera 23 arranged behind the laser component 1. The second camera 23 is used to collect the image of the roller surface after cleaning, and the second camera 23 is electrically connected to the controller 22.

[0054] The image signal of the roller surface after laser cleaning is obtained by the second camera 23, and the image signal is transmitted to the controller 22. According to the image signal of the roller surface before laser cleaning and the image signal of the roller surface after laser cleaning obtained by the first camera 21, the deviation between the change of the preset cleanliness and the actual change of cleanliness before and after laser cleaning and the position offset of laser cleaning are calculated. According to the deviation between the change of the preset cleanliness and the actual change of cleanliness and the position offset, the energy density and the number of cleanings of laser cleaning are adjusted, and the position offset of laser cleaning is corrected. The above steps are repeated to realize adaptive adjustment of laser cleaning.

[0055] The roller surface to be cleaned first passes through the first camera 21, which performs image recognition on the roller surface to be cleaned, transmits the image signal to the controller 22 for processing, divides the roller surface into the area to be cleaned and the clean area, and identifies the cleanliness of the area to be cleaned. The signal in the controller 22 is transmitted to the motion component 3 and the laser component 1 respectively, controls the motion component 3 to move the laser component 1 to the corresponding position of the roller surface to be cleaned, and the laser component 1 cleans the area to be cleaned. After cleaning, the roller surface passes through the second camera 23, which scans and recognizes the image of the roller surface after cleaning, and identifies the cleanliness of the roller surface after laser cleaning. The cleanliness can be judged based on the chromaticity of the residue on the roller surface. The closer the chromaticity is to the color of the roller surface, the better the cleanliness, and the closer the chromaticity is to the color of the residue, the worse the cleanliness. The image signal is transmitted to the controller 22. After the controller 22 calculates and processes the image information, it calculates the deviation between the preset cleanliness change and the actual cleanliness change and the position offset of the laser cleaning, and based on these parameters, corrects the offset and deviation of the laser cleaning corresponding to the laser component 1 and the motion component 3. Repeat the above steps to adjust the position offset and the deviation of the number of laser cleanings and energy density in real time until the error range requirements of this application are met.

[0056] For roller surfaces with different cleanliness levels, the preset cleanliness changes can be used to adjust the number of laser cleanings and the energy density according to the actual cleanliness changes, so that the actual cleanliness changes after laser cleaning are close to the preset cleanliness changes. After repeated multiple times, the number of laser cleanings and the energy density for roller surfaces with different cleanliness levels can be adaptively adjusted, so that the energy consumed by laser cleaning is further reduced and the laser cleaning efficiency is improved.

[0057] In this embodiment, a feedback loop is formed by the first camera 21, the second camera 23, the controller 22, the motion component 3 and the laser component 1, thereby realizing closed-loop control of the laser cleaning of the roller surface. Through continuous monitoring, feedback and adjustment, precise control of the system output is achieved, thereby ensuring the accuracy of laser cleaning.

[0058] When rolling different pole pieces, due to different rolling parameters and different pole piece coating materials, in order to improve the cleaning effect, it is necessary to manually calibrate the laser cleaning parameters. The present application implements closed-loop control that can automatically calibrate the laser cleaning parameters, saving labor costs.

[0059] The position offset includes the offset in the horizontal direction and the offset along the rotation direction of the roller surface. The horizontal offset can be determined by comparing the images of the area to be cleaned after passing through the first camera 21 and the second camera 23 to determine the residue in the horizontal direction of the area to be cleaned after laser cleaning, while the offset along the rotation direction of the roller surface is determined by comparing the images of the area to be cleaned after passing through the first camera 21 and the second camera 23 to determine the residue in the area to be cleaned after laser cleaning along the rotation direction of the roller surface. The deviation of the number of laser cleanings and the energy density can be determined by comparing the images of the area to be cleaned after passing through the first camera 21 and the second camera 23 to determine whether the cleanliness of the area where the cleanliness changes meets the standard. The laser cleaning effect can be improved by increasing the number of laser cleanings and the energy density of the laser, but the number of laser cleanings cannot be too many to reduce the efficiency of laser cleaning, and the energy density of the laser cannot be too high to prevent damage to the roller surface.

[0060] Preferably, the power density of the laser is 10 W / cm 2 -1000W / cm 2 Too small a power density will make it difficult to effectively clean the residue after rolling, while too large a power density may damage the roller.

[0061] The first camera 21 and the second camera 23 can be selected from a variety of cameras, such as industrial cameras, CMOS cameras and CCD cameras. Preferably, the first camera 21 and the second camera 23 are CCD cameras with high imaging quality, and the CCD sensor can provide better color reproduction, which is conducive to identifying the residue on the roller surface.

[0062] like Figure 7and 8 As shown, preferably, the first camera 21 and the second camera 23 are provided with an adjustment bracket 24, and the first camera 21 and the second camera 23 are adjustably fixed on the camera beam 25 through the adjustment bracket 24, and the camera beam 25 is arranged parallel to the roller surface.

[0063] Specifically, the adjustment bracket 24 includes an upper portion 241 and a lower portion 242. The upper portion 241 and the lower portion 242 are fixedly connected and are jointly arranged around the camera beam 25. The upper portion 241 and the lower portion 242 can be fixedly connected by bolts. When the bolts are tightened, the adjustment bracket 24 is fixed to the camera beam 25. When the bolts are loosened, the adjustment bracket 24 can move in the horizontal direction of the beam and can adjust the angle between the adjustment bracket 24 and the beam. The upper portion 241 is provided with a sliding groove 2411. The extending direction of the sliding groove 2411 is perpendicular to the extending direction of the camera beam 25. The first camera 21 and the second camera 23 are correspondingly provided with sliding protrusions 2412. In the sliding groove 2411, A waist-shaped hole 24111 is provided, and the extension direction of the waist-shaped hole 24111 is parallel to the extension direction of the sliding groove 2411. The sliding protrusion 2412 is provided with a threaded hole 24121 at the corresponding position of the waist-shaped hole 24111. Bolts can be used to pass through the waist-shaped hole 24111 and connect to the threaded hole 24121 to achieve a fixed connection between the adjustment bracket 24 and the first camera 21 and the second camera 23. When the bolts are not installed, the first camera 21 and the second camera 23 move back and forth along the sliding groove 2411 to achieve position adjustment of the first camera 21 and the second camera 23, ensuring that the positions of the first camera 21 and the second camera 23 are suitable to cover the roller surface and the image is clearly focused.

[0064] The above description shows and describes several preferred embodiments of the present invention, but as before, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A laser online automatic control roller surface cleaning device, characterized in that: include A laser assembly (1) is used for emitting laser to clean the roller surface of the pressure roller; A visual monitoring component (2) for collecting an image of the roller surface to be cleaned; The laser component (1) is electrically connected to the visual monitoring component (2), and the roller surface to be cleaned passes through the visual monitoring component (2) and the laser component (1) in sequence.

2. According to claim 1, the laser online automatic control roller surface cleaning device is characterized in that: The visual monitoring component (2) comprises a first camera (21) and a controller (22), and the laser component (1) and the motion component (3) are electrically connected to the first camera (21) via the controller (22).

3. According to claim 2, the laser online automatic control roller surface cleaning device is characterized in that: The visual monitoring component (2) further comprises a second camera (23) arranged behind the laser component (1), wherein the second camera (23) is used to collect an image of the roller surface after cleaning, and the second camera (23) is electrically connected to the controller (22).

4. The laser online automatic control roller surface cleaning device according to claim 1 is characterized in that: The invention comprises a laser protection component (4), wherein the laser protection component (4) comprises a laser protection cover (41), wherein the laser protection cover (41) is provided with a laser hole (411) and a dust removal hole (412), wherein the laser hole (411) corresponds to a position of a laser emitted by the laser component (1), and the laser component (1) and the laser protection cover (41) are fixedly connected via a connecting plate (42).

5. According to claim 2, the laser online automatic control roller surface cleaning device is characterized in that: The motion assembly (3) comprises a first guide rail (31), a motor (32), a first fixed support plate (33), a second fixed support plate (34), a slide (35), a belt (36), a driving wheel (37) and a driven wheel (38); the first fixed support plate (33) is arranged at both ends of the pressure roller, and the first fixed support plates (33) at both ends are connected through the second fixed support plate (34); the first guide rail (31) is arranged on the second fixed support plate (34); the slide (35) is arranged on the first guide rail (31); the driving wheel (37) and the driven wheel (38) are respectively located on opposite sides of the first guide rail (31); the belt (36) is installed on the driving wheel (37) and the driven wheel (38), and the belt (36) is fixedly connected to the slide (35); the motor (32) is drivingly connected to the driving wheel (37) so that the driving wheel (37) rotates; and the slide (35) carries the laser assembly (1).

6. The laser online automatic control roller surface cleaning device according to claim 3 is characterized in that: The first camera (21) and the second camera (23) are provided with an adjustment bracket (24), and the first camera (21) and the second camera (23) are fixed on a camera cross beam (25) in an adjustable manner through the adjustment bracket (24), and the camera cross beam (25) is arranged parallel to the roller surface.

7. The laser online automatic control roller surface cleaning device according to claim 6 is characterized in that: The adjustment bracket (24) comprises an upper portion (241) and a lower portion (242); the upper portion (241) and the lower portion (242) are fixedly connected and are jointly arranged around the camera beam (25); the upper portion (241) is provided with a sliding groove (2411); the extension direction of the sliding groove (2411) is perpendicular to the extension direction of the camera beam (25); the first camera (21) and the second camera (23) are correspondingly provided with sliding protrusions (2412); a waist-shaped hole (24111) is provided in the sliding groove (2411); the extension direction of the waist-shaped hole (24111) is parallel to the extension direction of the sliding groove (2411); the sliding protrusion (2412) is provided with a threaded hole (24121) at a corresponding position of the waist-shaped hole (24111).

8. The laser online automatic control roller surface cleaning device according to claim 4 is characterized in that: The size of the laser hole (411) corresponds to the irradiation range of the laser emitted by the laser assembly (1), and the laser protective cover (41) is installed on the second guide rail (43).

9. A method for using the laser online automatic control roller surface cleaning device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Start the pressure roller to rotate, use the visual monitoring component (2) to perform image recognition on the roller surface and process the image signal to divide the roller surface into a to-be-cleaned area and a clean area, transmit the processed signal to the laser component (1) and the motion component (3) respectively, the motion component (3) moves the laser component (1) to the to-be-cleaned area, and the laser protective cover (41) fixedly connected to the laser component (1) moves synchronously, the laser component (1) performs laser cleaning on the to-be-cleaned area, the laser protective cover (41) blocks the laser refracted and reflected by the laser component (1), and at the same time the vacuum cleaner is started to form a vacuum in the laser protective cover (41) to absorb dust formed during laser cleaning; S2: Obtain the cleanliness of the roller surface after laser cleaning and the position offset of laser cleaning, adjust the energy density and cleaning times of laser cleaning, and correct the position offset of laser cleaning until the offset reaches the required range and the roller surface after cleaning meets the cleanliness requirements.

10. The method for using the laser online automatic control roller surface cleaning device according to claim 9, characterized in that: In step S2, an image signal of the roller surface after laser cleaning is obtained by the second camera (23), and the image signal is transmitted to the controller (22). Based on the image signal of the roller surface before laser cleaning and the image signal of the roller surface after laser cleaning obtained by the first camera (21), the deviation between the change in preset cleanliness and the actual change in cleanliness before and after laser cleaning and the position offset of laser cleaning are calculated. Based on the deviation between the change in preset cleanliness and the actual change in cleanliness and the position offset, the energy density and number of cleanings of laser cleaning are adjusted, and the position offset of laser cleaning is corrected. The above steps are repeated to achieve adaptive adjustment of laser cleaning.

Images