Roller cleaning system and method

Abstract

The present application discloses a roller cleaning system and method. The roller cleaning system comprises: a laser device used for emitting laser to the surface of a roller; and a controller used for controlling, when the roller rotates, the laser device to emit laser and reciprocate in the unit length. According to embodiments of the present application, the cleaning efficiency can be improved.

Description

Roller cleaning system and cleaning method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410353377.9, filed on March 26, 2024, entitled “Cleaning system and cleaning method for rolling mill rolls,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of battery manufacturing technology, and in particular to a roller cleaning system and a roller cleaning method. Background Art

[0004] Batteries are widely used in various electrical devices, such as electric cars, electric bicycles, electric airplanes, electric ships, etc.

[0005] In the lithium battery electrode production industry, the anode cold pressing process suffers from roller sticking, necessitating roller surface cleaning. However, the related art suffers from low cleaning efficiency.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a roller cleaning system and a roller cleaning method, which can improve the cleaning efficiency.

[0008] In a first aspect, an embodiment of the present application provides a roller cleaning system, comprising: a laser for emitting laser light toward the surface of the roller; and a controller for controlling the laser to emit laser light and reciprocate within a unit length when the roller rotates.

[0009] According to the roller cleaning system provided in an embodiment of the present application, a controller controls the laser to emit laser light and reciprocate within a unit length as the roller rotates. In other words, the laser moves simultaneously with the roller. Compared to time-sharing movement of the roller and laser, simultaneous movement of the roller and laser increases the overall cleaning speed, thereby improving cleaning efficiency. Furthermore, controlling the laser to move simultaneously with the roller movement enables online cleaning during the rolling of the pole piece.

[0010] In some embodiments of the first aspect, the controller is further used to control the connection of tracks formed by the laser emitted by the laser on the surface of the roller.

[0011] In the embodiment of the present application, since the trajectory formed by the laser emitted by the laser on the surface of the roller is connected, the surface of the roller within a unit length can be laser scanned as a whole, thereby achieving comprehensive cleaning of the surface of the roller within a unit length.

[0012] In some embodiments of the first aspect, the roller has a width W in its axial direction and a unit length L, where L<W;

[0013] The controller is further used to divide W into N Ls, and to control the laser to perform reciprocating motion in the N Ls in sequence when the roller rotates, wherein N is greater than or equal to W / L.

[0014] Since the cleaning process has certain requirements for the intensity of the laser, generally, the larger the laser spot diameter, the smaller the laser intensity will be. In the embodiment of the present application, the width W of the roller is divided into N Ls, and the laser reciprocates in the N Ls in turn, which can effectively achieve cleaning of the area corresponding to each L.

[0015] In some embodiments of the first aspect, the controller is further configured to control the parameters of the laser to conform to the following formula when the roller is rotating: 总 =T1×(W / L); T 总 =(2×π×D 轧 ×W) / (D×V 激光 );

[0016] Where, T = D / V 轧 , L=(T / 2)×V 激光 , T1=(π×D 轧 ) / V 激光 , V 激光 represents the scanning speed of the laser, D represents the diameter of the laser spot in the direction of roller rotation, V 轧 represents the rotation speed of the roller, T represents the time required for the roller to rotate a distance D, and D 轧 represents the diameter of the roller, T1 represents the time required for the roller to rotate one circle, T 总 Indicates the time required to clean the entire surface of the roller.

[0017] In the embodiment of the present application, when the roller rotates and the parameters of the laser meet the above formula, cleaning within a single L area or cleaning within the entire W area can be completed.

[0018] In some embodiments of the first aspect, the controller is used to control the laser to emit laser light and reciprocate within a unit length when the speed of the roller rotation is greater than or equal to a preset speed threshold, and is also used to control the laser to stop emitting laser light and stop emitting laser light when the speed of the roller rotation is less than a preset speed threshold.

[0019] When the rotation speed of the roller is less than a preset speed threshold, the rotation speed of the roller is low, and a large amount of dust (such as carbon powder) will not accumulate on the surface of the roller. In this case, controlling the laser to be stationary and stop emitting laser light can save costs.

[0020] When the rotation speed of the roller is greater than or equal to the preset speed threshold, the rotation speed of the roller is relatively high, and a large amount of dust (such as carbon powder) will accumulate on the surface of the roller. In this case, the laser is controlled to emit laser and reciprocate within a unit length, which can effectively clean the roller surface online and improve efficiency.

[0021] In some embodiments of the first aspect, the controller is further configured to control the laser to emit laser light and reciprocate within a unit length when the roller rotation speed remains constant for a period greater than a preset time threshold.

[0022] When the time length of the roller rotation speed remaining unchanged is greater than the preset time threshold, it can be considered that the roller has reached a stable motion condition. When the roller is in stable motion, controlling the laser to emit laser and reciprocate within a unit length can be more conducive to achieving effective cleaning of the entire roller surface.

[0023] In some embodiments of the first aspect, the controller is further configured to control the laser to stop emitting laser light after receiving a shutdown alarm signal, thereby ensuring the safety of the system.

[0024] In some embodiments of the first aspect, the spot of the laser emitted by the laser is circular, elliptical, or rectangular.

[0025] In this way, the projection area of ​​the laser spot on the roller surface can be increased, the cleaning time can be accelerated, and it is also helpful to ensure that the laser energy per unit area is sufficient.

[0026] In some embodiments of the first aspect, the cleaning system further comprises a dust collection box for collecting dust on the surface of the roller.

[0027] In this way, the dust on the roller surface burned by the laser can be collected in the first dust collection box, which can prevent the dust from drifting to other places and achieve more effective cleaning.

[0028] Based on the same inventive concept, in a second aspect, an embodiment of the present application provides a method for cleaning a roller, comprising:

[0029] Get the operating status of the roller;

[0030] When the roller rotates, the laser is controlled to emit laser light toward the surface of the roller and to reciprocate within a unit length.

[0031] According to the roller cleaning method provided in an embodiment of the present application, a controller controls a laser to emit laser light and reciprocate within a unit length as the roller rotates. In other words, the laser moves simultaneously with the roller's movement. Compared to time-sharing movement of the roller and laser, simultaneous movement of the roller and laser increases the overall cleaning speed, thereby improving cleaning efficiency. Furthermore, controlling the laser's movement simultaneously with the roller's movement enables online cleaning during the rolling of the pole piece.

[0032] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0034] FIG1 shows a schematic structural diagram of a roller cleaning system provided in an embodiment of the present application;

[0035] FIG2 is a schematic diagram showing a structure of a laser in a roller cleaning system provided in an embodiment of the present application;

[0036] FIG3 is a schematic diagram showing a cleaning scenario of a roller cleaning system provided in an embodiment of the present application;

[0037] FIG4 is a schematic diagram showing a cleaning path within a unit length of a roller cleaning system provided in an embodiment of the present application;

[0038] FIG5 is a schematic diagram showing a cleaning path of a roller cleaning system provided by an embodiment of the present application within the entire width;

[0039] FIG6 is a schematic diagram showing another cleaning trajectory of the roller cleaning system provided by an embodiment of the present application within the entire width;

[0040] FIG7 shows a side structural schematic diagram of a roller cleaning system provided in an embodiment of the present application;

[0041] FIG8 is a schematic structural diagram of another side view of the roller cleaning system provided in an embodiment of the present application;

[0042] FIG9 shows another side structural schematic diagram of the roller cleaning system provided in an embodiment of the present application;

[0043] FIG10 is a schematic flow chart showing a method for cleaning a roller according to an embodiment of the present application;

[0044] FIG11 shows a schematic structural diagram of an electronic device provided in an embodiment of the present application.

[0045] Explanation of the accompanying symbols: 11. Laser; 12. Controller; 13. Operation module; 131. Guide rail; 141. First dust collection box; 142. Second dust collection box; 15. Scraper; 20. Roller; 20a. Roller group; 21. Upper roller; 22. Lower roller; 30. Pole piece Z, axial direction; X, rotation direction of the roller; Y, moving direction of the pole piece. DETAILED DESCRIPTION

[0046] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0048] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0049] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0051] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0052] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0053] Currently, market developments indicate that power batteries are becoming increasingly widely used. Power batteries are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric cars, electric motorcycles, and electric bicycles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0054] For example, in the lithium battery electrode production industry, there is a problem of roller sticking during the anode cold pressing process, but the cleaning of the rollers in the relevant technology is not efficient.

[0055] In order to solve the above technical problems, the embodiments of the present application provide a roller cleaning system and a cleaning method, which will be described below with reference to the accompanying drawings.

[0056] The following first introduces the roller cleaning system provided in the embodiment of the present application.

[0057] As shown in Figures 1 and 2, the roller cleaning system provided in an embodiment of the present application includes a laser 11 and a controller 12. The roller cleaning system is used to clean the surface of the roller 20. The laser 11 is used to emit laser light toward the surface of the roller 20. The laser light can burn foreign matter on the surface of the roller 20, thereby cleaning the surface of the roller 20. The controller 12 is electrically connected to the laser 11 and is used to control the laser 11 to emit laser light and reciprocate within a unit length when the roller 20 rotates.

[0058] The laser provides an energy source. For example, a laser spot can be projected onto the surface of the roller through a galvanometer.

[0059] Exemplarily, the controller 12 may be a chip or circuit that performs related actions according to characteristic instructions. For example, the controller 12 may be a microcontroller unit (MCU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. For another example, the controller 12 may include an external clock, random access memory (RAM), read-only memory (ROM), etc. The present application does not limit the specific structure of the controller 12.

[0060] For example, as shown in Figures 1 and 2, the roller cleaning system may further include a running module 13, which is disposed on one side of the roller 20. The laser 11 may be mounted on a guide rail 131 of the running module 13, and the laser 11 may be movable horizontally on the guide rail 141. For example, the guide rail 131 may be disposed parallel to the axial direction Z of the roller 20.

[0061] It should be noted that the above example is only one implementation method of the reciprocating motion of the laser, and is not intended to limit the present application.

[0062] To better understand the cleaning process of the roller cleaning system, please refer to Figure 3 , which schematically illustrates two roller groups 20a. Each roller group 20a includes two rollers 20, an upper roller 21 and a lower roller 22. The rollers 20 are provided in a one-to-one correspondence with the lasers 11. For example, the lasers 11 corresponding to the rollers 20 can be controlled by the same controller. For another example, the lasers 11 corresponding to the rollers 20 can be controlled by the same controller.

[0063] The battery electrode 30 is located between the upper roller 21 and the lower roller 22. During the production process, the upper roller 21 and the lower roller 22 can rotate in opposite directions, so that the electrode 30 moves along the direction Y to achieve rolling of the electrode 30. For example, in Figure 3, the upper roller 21 rotates counterclockwise and the lower roller 22 rotates clockwise.

[0064] According to the roller cleaning system provided in an embodiment of the present application, while the roller 20 rotates, the controller 13 controls the laser 11 to emit laser light and reciprocate within a unit length. In other words, the laser 11 moves simultaneously with the roller 20. Compared to time-sharing movement of the roller 20 and the laser 11, simultaneous movement of the roller 20 and the laser 11 increases the overall cleaning speed, thereby improving cleaning efficiency. Furthermore, controlling the laser 11 to move simultaneously with the roller 20 movement enables online cleaning during the electrode sheet rolling process.

[0065] In some embodiments, the controller is further used to control the connection of the track formed by the laser emitted by the laser on the surface of the roller during the reciprocating motion of the laser within a unit length.

[0066] As shown in Figure 4, the laser performs reciprocating motion within a unit length L. For example, when the laser moves to the left, the trajectory formed by the laser light on the roller surface is called the first trajectory. When the laser moves to the right, the trajectory formed by the laser light on the roller surface is called the second trajectory. The adjacent first and second trajectories are connected. The connection of two trajectories can mean that there is no uncleaned area between the two trajectories in the direction of roller rotation X. The uncleaned area refers to the area that has not been cleaned by the laser.

[0067] In the embodiment of the present application, since the trajectory formed by the laser emitted by the laser on the surface of the roller is connected, the surface of the roller within a unit length can be laser scanned as a whole, thereby achieving comprehensive cleaning of the surface of the roller within a unit length.

[0068] In some embodiments, referring to FIG1 and FIG5 , the width of the roller 20 in the axial direction Z is W, and the laser reciprocates within a unit length L, where L<W. The controller is further configured to divide the width W of the roller 20 into N units of L, and to control the laser 11 to sequentially reciprocate within the N units of L as the roller 20 rotates, where N is greater than or equal to W / L.

[0069] As an example, as shown in FIG5 or FIG6 , the width W of the roller 20 is divided into the 1st L, the 2nd L, and so on, the Nth L. When the roller 20 rotates, the laser 11 reciprocates in the 1st L to the Nth L in sequence. For example, when the roller rotates, the controller can control the laser 11 to first correspond to the starting point of the 1st L, and then control the laser to reciprocate in the 1st L; after completing the cleaning of the 1st L area, the controller can control the laser 11 to then correspond to the starting point of the 2nd L, and then control the laser to reciprocate in the 2nd L; and so on. After completing the cleaning of the N-1th L area, the controller can control the laser 11 to then correspond to the starting point of the Nth L, and then control the laser to reciprocate in the Nth L, thereby completing the cleaning of the entire W area.

[0070] Since the cleaning process has certain requirements for the intensity of the laser, generally, the larger the laser spot diameter, the smaller the laser intensity will be. In the embodiment of the present application, the width W of the roller 20 is divided into N Ls, and the laser 11 performs reciprocating motion in the N Ls in turn, which can effectively achieve cleaning of the area corresponding to each L.

[0071] For example, within any L, the controller can be used to control the laser to complete comprehensive cleaning of the surface of the roller within the L within one rotation of the roller. Within the first L to the Nth L, the roller rotates N times in total.

[0072] As an example, as shown in FIG5 , in two adjacent Ls, the end point of the previous L is the starting point of the next L.

[0073] As another example, to ensure the cleanliness of adjacent positions of two adjacent L areas, as shown in FIG6 , in two adjacent L areas, the end point of the previous L is after the starting point of the next L.

[0074] It can be understood that, when the laser spot diameter is large enough and the laser intensity is sufficient, the unit length L can be equal to the width W of the roller.

[0075] In some embodiments, the controller is further configured to control the laser parameters to conform to the following formula when the roller is rotating: 总 =T1×(W / L); T 总 =(2×π×D 轧 ×W) / (D×V 激光 );

[0076] Where, T = D / V 轧 , L=(T / 2)×V 激光 , T1=(π×D 轧 ) / V 激光 , V 激光represents the scanning speed of the laser, D represents the diameter of the laser spot in the direction of roller rotation, V 轧 represents the rotation speed of the roller, T represents the time required for the roller to rotate a distance D, and D 轧 represents the diameter of the roller, T1 represents the time required for the roller to rotate one circle, T 总 Indicates the time required to clean the entire surface of the roller.

[0077] It is understandable that when the laser spot diameter D is constant, the laser scanning speed V 激光 The faster it is, the smaller the unit length L needs to be.

[0078] In the embodiment of the present application, when the roller rotates and the parameters of the laser meet the above formula, cleaning within a single L area or cleaning within the entire W area can be completed.

[0079] During the operation of the roller, the laser can be controlled to move back and forth at a certain speed so that the laser spot falls on the entire roller surface, completing the cleaning of the entire roller surface.

[0080] In some embodiments, the controller is used to control the laser to emit laser light and reciprocate within a unit length when the speed of the roller rotation is greater than or equal to a preset speed threshold, and is also used to control the laser to stop emitting laser light and stop emitting laser light when the speed of the roller rotation is less than a preset speed threshold.

[0081] The controller can obtain the operating status of the roller, compare the current rotation speed of the roller with a set speed threshold, and control the laser to execute the corresponding state according to the current rotation speed.

[0082] For example, when the roller rotation speed is greater than or equal to 10 m / min, the laser emits laser light and reciprocates within a unit length. When the roller rotation speed is less than 10 m / min, the laser stops and stops emitting laser light.

[0083] When the rotation speed of the roller is less than a preset speed threshold, the rotation speed of the roller is low, and a large amount of dust (such as carbon powder) will not accumulate on the surface of the roller. In this case, controlling the laser to be stationary and stop emitting laser light can save costs.

[0084] When the rotation speed of the roller is greater than or equal to the preset speed threshold, the rotation speed of the roller is relatively high, and a large amount of dust (such as carbon powder) will accumulate on the surface of the roller. In this case, the laser is controlled to emit laser and reciprocate within a unit length, which can effectively clean the roller surface online and improve efficiency.

[0085] In some embodiments, the controller is further configured to control the laser to emit laser light and reciprocate within a unit length when the roller rotation speed remains constant for a period greater than a preset time threshold.

[0086] When the time length of the roller rotation speed remaining unchanged is greater than the preset time threshold, it can be considered that the roller has reached a stable motion condition. When the roller is in stable motion, controlling the laser to emit laser and reciprocate within a unit length can be more conducive to achieving effective cleaning of the entire roller surface.

[0087] The rotation speed of the roller is V 轧 , V 轧 Different speed files can be used to call roller clearing instructions.

[0088] For example, at 20m / min≤V 轧 When the speed is less than 30m / min and the rotation speed remains unchanged for 3S (seconds), the 30m / min image light can be used to clean the roller surface;

[0089] At 30m / min≤V 轧 When the speed is less than 40m / min and the rotation speed remains unchanged for 3S, the 40m / min image light can be used to clean the roller surface;

[0090] At 40m / min≤V 轧 When the speed is less than 50m / min and the rotation speed remains unchanged for 3S, the 50m / min image light can be used to clean the roller surface;

[0091] At 50m / min≤V 轧 When the speed is less than 60m / min and the rotation speed remains unchanged for 3S, the 60m / min image light can be used to clean the roller surface;

[0092] At 60m / min≤V 轧 When the speed is less than 70m / min and the rotation speed remains unchanged for 3S, the 70m / min image light can be used to clean the roller surface;

[0093] At 70m / min≤V 轧 When the speed is less than 80m / min and the rotation speed remains unchanged for 3S, the 80m / min image light can be used to clean the roller surface;

[0094] At 80m / min≤V 轧 When the speed is less than 90m / min and the rotation speed remains unchanged for 3S, the 90m / min image light can be used to clean the roller surface;

[0095] At 100m / min≤V 轧In the case of , and the rotation speed remains unchanged for 5S, the 100m / min pattern light can be called to clean the roller surface.

[0096] It should be noted that the movement speed of the laser can be set according to actual needs. The numerical values ​​in the above examples are only examples and are not intended to limit this application.

[0097] In some embodiments, the controller is further configured to control the laser to stop and stop emitting laser light after receiving a shutdown alarm signal.

[0098] For example, if a safety door failure, emergency stop failure, shutdown failure, or speed mutation failure occurs on a cold press machine (the cold press machine includes multiple rollers used to roll electrode plates), a shutdown alarm signal can be triggered, and then the controller can control the laser to stop and stop emitting laser light to ensure the safety of the system.

[0099] In some embodiments, the laser spot emitted by the laser is circular, elliptical, or rectangular. This can increase the projected area of ​​the laser spot on the roller surface, speed up the cleaning time, and help ensure sufficient laser energy per unit area.

[0100] It is understandable that when the spot of the laser light emitted by the laser is elliptical or rectangular, the longer diameter of the elliptical or rectangular spot is parallel to the rotation direction of the roller.

[0101] In some embodiments, as shown in FIG. 7 or FIG. 8 , the roller cleaning system provided by the present invention further includes a first dust collection box 141 for collecting dust from the roller surface. Dust from the laser-burned roller surface is collected in first dust collection box 141, preventing the dust from dispersing elsewhere and achieving more effective cleaning.

[0102] For example, as shown in FIG3 , a plurality of rollers 20 and a plurality of first dust collection boxes 141 may be provided in a one-to-one correspondence.

[0103] In some embodiments, as shown in FIG9 , the roller cleaning system provided by the present invention further includes a scraper 15 , which can be arranged parallel to the axial direction of the roller 20 and in close contact with the roller surface. The scraper 15 can be used to remove foreign matter (e.g., glue) from the roller surface that cannot be removed by laser.

[0104] In some embodiments, as shown in FIG9 , the roller cleaning system provided in the embodiment of the present application further includes a second dust collection box 142 , which can be used to collect foreign matter scraped off by the scraper.

[0105] It should be noted that the application scenarios described in the above-mentioned embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Ordinary technicians in this field can know that with the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0106] Based on the same inventive concept, the present application also provides a roller cleaning method, which is described in detail in conjunction with Figure 10. As shown in Figure 10, the roller cleaning method provided by the present application includes steps 110 to 120.

[0107] Step 110, obtaining the operating status of the roller;

[0108] Step 120 : When the roller is rotating, control the laser to emit laser light toward the surface of the roller and to reciprocate within a unit length.

[0109] According to the roller cleaning method provided in an embodiment of the present application, a controller controls a laser to emit laser light and reciprocate within a unit length as the roller rotates. In other words, the laser moves simultaneously with the roller's movement. Compared to time-sharing movement of the roller and laser, simultaneous movement of the roller and laser increases the overall cleaning speed, thereby improving cleaning efficiency. Furthermore, controlling the laser's movement simultaneously with the roller's movement enables online cleaning during the rolling of the pole piece.

[0110] In some embodiments, the roller cleaning method provided in the present application further includes: controlling the track formed by the laser emitted by the laser on the surface of the roller to connect.

[0111] In some embodiments, the width of the roller in its axial direction is W, the unit length is L, and L<W; the roller cleaning method provided in the present application further includes:

[0112] W is divided into N Ls, and the laser is controlled to perform reciprocating motion in the N Ls in sequence when the roller rotates, wherein N is greater than or equal to W / L.

[0113] In some embodiments, the roller cleaning method provided in the present application further includes: controlling the laser parameters to conform to the following formula when the roller is rotating: 总 =T1×(W / L); T 总 =(2×π×D 轧 ×W) / (D×V 激光 );

[0114] Where, T = D / V 轧 , L=(T / 2)×V 激光 , T1=(π×D 轧 ) / V激光 , V 激光 represents the scanning speed of the laser, D represents the diameter of the laser spot in the direction of roller rotation, V 轧 represents the rotation speed of the roller, T represents the time required for the roller to rotate a distance D, and D 轧 represents the diameter of the roller, T1 represents the time required for the roller to rotate one circle, T 总 Indicates the time required to clean the entire surface of the roller.

[0115] In some embodiments, the roller cleaning method provided in the present application also includes: controlling the laser to emit laser and reciprocate within a unit length when the roller rotation speed is greater than or equal to a preset speed threshold; and controlling the laser to stop and stop emitting laser when the roller rotation speed is less than the preset speed threshold.

[0116] In some embodiments, the roller cleaning method provided in the present application further includes: controlling the laser to emit laser light and reciprocate within a unit length when the roller rotation speed remains constant for a period greater than a preset time threshold.

[0117] In some embodiments, the roller cleaning method provided in the present application further includes: controlling the laser to be stationary and stop emitting laser light after receiving a shutdown alarm signal.

[0118] In some embodiments, the roller cleaning method provided in the present application further includes: controlling the spot of the laser emitted by the laser to be circular, elliptical or rectangular.

[0119] In some embodiments, the roller cleaning method provided in the present application further includes: collecting dust on the roller surface using a dust collection box.

[0120] Based on the same inventive concept, an embodiment of the present application further provides an electronic device. FIG11 shows a schematic diagram of the hardware structure of the electronic device provided in an embodiment of the present application.

[0121] The electronic device may include a processor 1001 and a memory 1002 storing computer program instructions.

[0122] Specifically, the processor 1001 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiment of the present invention.

[0123] The memory 1002 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 1002 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 1002 may include removable or non-removable (or fixed) media. Where appropriate, the memory 1002 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 1002 is a non-volatile solid-state memory.

[0124] In certain embodiments, memory 1002 includes read-only memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these. For example, the memory may include non-volatile transient memory.

[0125] The processor 1001 reads and executes computer program instructions stored in the memory 1002 to implement any one of the collision handling methods in the above embodiments.

[0126] In one example, the electronic device may further include a communication interface 1003 and a bus 1010. As shown in FIG11 , the processor 1001, the memory 1002, and the communication interface 1003 are connected via the bus 1010 and communicate with each other.

[0127] The communication interface 1003 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiment of the present invention.

[0128] Bus 1010 comprises hardware, software or both, couples the parts of electronic equipment to each other.For example, and not limitation, bus can comprise accelerated graphics port (AGP) or other graphics bus, enhanced industry standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industry standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations.In suitable cases, bus 1010 can comprise one or more buses.Although the embodiment of the present invention describes and shows specific bus, the present invention considers any suitable bus or interconnection.

[0129] Illustratively, the electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA).

[0130] The electronic device can execute the roller cleaning method in the embodiment of the present application.

[0131] Based on the same inventive concept, the present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the collision handling method in the above embodiment can be implemented and the same technical effect can be achieved. To avoid repetition, the above-mentioned computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., which is not limited here.

[0132] Based on the same inventive concept, an embodiment of the present application further provides a computer program product, including computer program instructions, which, when executed by a processor, implement the roller cleaning method described in any one of the above embodiments.

[0133] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0134] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or communication link via a data signal carried in a carrier wave. "Computer-readable medium" can include any medium capable of storing or transmitting information. Examples of computer-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0135] According to an embodiment of the present application, the computer-readable storage medium may be a non-transitory computer-readable storage medium.

[0136] It should also be noted that the exemplary embodiments described in this application describe methods or systems based on a series of steps or apparatuses. However, this application is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0137] Aspects of the present application have been described above with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed via the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. This processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit. It is also understood that each box in the block diagram and / or the flowchart and the combination of the boxes in the block diagram and / or the flowchart can also be implemented by the dedicated hardware that performs the specified function or action, or can be implemented by the combination of dedicated hardware and computer instructions.

[0138] While the embodiments described above are not exhaustive, they do not limit the present application to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A roller cleaning system comprising: A laser, used for emitting laser light onto the surface of the roller; The controller is used for controlling the laser to emit laser light and to reciprocate within a unit length when the roller rotates.

2. The roller cleaning system according to claim 1, wherein: The controller is also used to control the connection of the tracks formed by the laser emitted by the laser on the surface of the roller.

3. The roller cleaning system according to claim 1, wherein: The width of the roller in the axial direction is W, and the unit length is L, L<W; The controller is further configured to divide W into N Ls, and to control the laser to perform reciprocating motion in sequence within the N Ls when the roller rotates, wherein N is greater than or equal to W / L.

4. The roller cleaning system according to claim 3, wherein: The controller is further configured to control the laser parameters to conform to the following formula when the roller is rotating: 总 =T1×(W / L); T 总 =(2×π×D 轧 ×W) / (D×V 激光 ); Where, T = D / V 轧 , L=(T / 2)×V 激光 , T1=(π×D 轧 ) / V 激光 , V 激光 represents the scanning speed of the laser, D represents the diameter of the laser spot in the direction of rotation of the roller, V 轧 represents the rotation speed of the roller, T represents the time required for the roller to rotate a distance D, and D 轧 represents the diameter of the roller, T1 represents the time required for the roller to rotate one circle, T 总 Indicates the time required to clean the entire surface of the roll.

5. The roller cleaning system according to claim 1, wherein: The controller is used to control the laser to emit laser light and reciprocate within a unit length when the speed of rotation of the roller is greater than or equal to a preset speed threshold, and is also used to control the laser to stop emitting laser light and stop emitting laser light when the speed of rotation of the roller is less than the preset speed threshold.

6. The roller cleaning system according to claim 1, wherein: The controller is further configured to control the laser to emit laser light and reciprocate within a unit length when the time length during which the speed of the roller rotation remains constant is greater than a preset time length threshold.

7. The roller cleaning system according to claim 1, wherein: The controller is also used to control the laser to stop and stop emitting laser light after receiving a shutdown alarm signal.

8. The roller cleaning system according to claim 1, wherein: The spot of the laser emitted by the laser is circular, elliptical or rectangular.

9. The roller cleaning system according to claim 1, wherein: The cleaning system further comprises a dust collecting box for collecting dust on the surface of the roller.

10. The roller cleaning system according to claim 1, wherein: The cleaning system further comprises a running module, wherein the running module is arranged on one side of the roller, and the laser is mounted on a guide rail of the running module, and the laser can move horizontally on the guide rail.

11. The roller cleaning system according to claim 10, wherein: The guide rail is arranged parallel to the axial direction of the roller.

12. The roller cleaning system according to claim 1, wherein: The plurality of rollers are arranged in one-to-one correspondence with the plurality of lasers.

13. The roller cleaning system according to claim 12, wherein: The plurality of lasers are controlled by the same controller.

14. The roller cleaning system according to claim 3, wherein: In any L, the controller is used to control the laser to complete comprehensive cleaning of the surface of the roller in the L within the time when the roller rotates one circle.

15. The roller cleaning system according to claim 14, wherein: From the 1st L to the Nth L, the roller rotates N times in total.

16. The roller cleaning system according to claim 1, wherein: The cleaning system further comprises a scraper, which is arranged parallel to the axial direction of the roller and closely adheres to the surface of the roller.

17. The roller cleaning system according to claim 16, wherein: The cleaning system further comprises a second dust collection box, which is used to collect foreign matter scraped off by the scraper.

18. A method for cleaning a roller, wherein: include: Get the operating status of the roller; When the roller rotates, the laser is controlled to emit laser light toward the surface of the roller and to reciprocate within a unit length.

Images