Roller surface cleaning method

Abstract

The invention discloses a roller surface cleaning method which comprises the following steps: presetting the axial cleaning length of a cleaning section and the axial overlapping length of an axial overlapping area, and dividing a roller surface into a plurality of cleaning sections; the circumferential cleaning length of the cleaning area and the circumferential overlapping length of the circumferential overlapping area are preset, and the cleaning section is divided into a plurality of cleaning areas; and a laser is adopted to sequentially clean all the cleaning areas in all the cleaning sections till all the cleaning sections are cleaned. The laser roller surface cleaning device is used for automatically cleaning the roller surface, so that the laser can clean the roller surface in order, the cleaning efficiency is improved, the problem of poor cleaning effect caused by overlarge single cleaning area is effectively avoided, no missing cleaning dead angle on the roller surface can be effectively ensured, and the cleaning efficiency is improved. In addition, the roller surface cleaning device can be suitable for cleaning operation with different roller surface sizes and cleaning requirements, flexibility is higher, and therefore the cleaning requirements in different scenes can be met.

Description

Technical Field

[0001] The invention relates to the technical field of roller surface cleaning, and in particular to a roller surface cleaning method. Background Art

[0002] In industrial production, rollers are key components for material transmission, processing or handling, and their surface cleanliness directly affects product quality and production efficiency. Traditional roller surface cleaning methods mostly use mechanical scraping, high-pressure water washing or chemical solvent immersion, which are not only inefficient, but also easily damage the roller surface, affecting the service life of the roller. Especially for large and complex roller surfaces, traditional cleaning methods often fail to achieve a comprehensive and uniform cleaning effect, and are prone to leaving cleaning dead corners, resulting in unstable product quality.

[0003] With the rapid development of laser technology, laser cleaning has gradually become a new choice in the field of roller surface cleaning due to its advantages such as non-contact, pollution-free, precise and controllable. However, laser cleaning also faces many challenges in roller surface applications, such as uneven distribution of laser energy when a single cleaning area is too large, affecting the cleaning effect; the roller surface has various sizes, making it difficult to uniformly set cleaning parameters; and how to ensure that there are no omissions or dead corners during the cleaning process.

[0004] Therefore, there is an urgent need for an efficient, comprehensive and uniform roller surface cleaning method that can adapt to different roller surface sizes and cleaning requirements and ensure the consistency and stability of the cleaning effect. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a roller surface cleaning method.

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

[0007] An embodiment of the present invention provides a roller surface cleaning method, comprising:

[0008] Preset axial cleaning length and axial overlap length;

[0009] Dividing the roller surface into a plurality of cleaning segments in the axial direction, the length of each cleaning segment is the axial cleaning length, and there is an axial overlapping area between the axially adjacent cleaning segments, and the length of each axial overlapping area is the axial overlapping length;

[0010] Preset circumferential cleaning length and circumferential overlapping length;

[0011] Dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, the length of each cleaning area being the circumferential cleaning length, and there being a circumferential overlapping area between the circumferentially adjacent cleaning areas, the length of each circumferential overlapping area being the circumferential overlapping length;

[0012] The laser is used to clean each cleaning area in each cleaning section in turn until all cleaning sections are cleaned.

[0013] In one embodiment, in the step of presetting the axial cleaning length and the axial overlapping length, the axial cleaning length and the axial overlapping length are determined using the following formula:

[0014] N = (D1-L1) / (L1-L2);

[0015] Where N is the number of laser field mirror movements, D1 is the total cleaning length, L1 is the axial cleaning length, and L2 is the axial overlapping length. The value range of L1 is (L 1min , L 1max ), the value range of L2 is (L 2min , L 2max );

[0016] All combinations of L1 and L2 are traversed in a loop. When the calculated result of N is a positive integer, the corresponding L1 and L2 are the preset values ​​of the axial cleaning length and the axial overlapping length.

[0017] In one embodiment, after the step of presetting the axial cleaning length and the axial overlapping length, the method further comprises:

[0018] The axial cleaning starting point and axial cleaning end point of each cleaning section are calculated;

[0019] Preset the moving starting point of the laser field mirror according to the axial cleaning starting point and the axial cleaning end point of the first cleaning section;

[0020] The axial position of the laser field mirror corresponding to each cleaning section is calculated according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror.

[0021] In one embodiment, in the step of calculating the axial position of the laser field mirror corresponding to each cleaning section according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror, the axial position is determined by the following formula:

[0022] A k =d1+(k-1)*(L1-L2);

[0023] Where k represents the kth cleaning segment, and the value of k is (1, N+1), A k is the axial position of the laser field mirror corresponding to the kth cleaning section, and d1 represents the moving starting point of the laser field mirror.

[0024] In one embodiment, the step of dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, the length of each cleaning area being the circumferential cleaning length, and there being a circumferential overlapping area between the circumferentially adjacent cleaning areas, the length of each circumferential overlapping area being the circumferential overlapping length, comprises:

[0025] The cleaning section is divided into P equal sections in the circumferential direction, and each equal section is divided into M cleaning areas, wherein the circumferential overlapping area exists between adjacent cleaning areas.

[0026] In one embodiment, in the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, the number of cleaning times M is determined by the following formula:

[0027] M=Roundup(C2 / H3), C2=C1 / P, H3=H1-H2;

[0028] Among them, Roundup means rounding up, C1 is the roller circumference, C2 is the length of the equally divided area, H1 is the circumferential cleaning length, H2 is the circumferential overlapping length, and H3 is the effective cleaning length.

[0029] In one embodiment, the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, comprises:

[0030] The circumferential light-emitting position and circumferential light-off position of the cleaning area are calculated;

[0031] The cleaning section is divided according to the circumferential cleaning length, the circumferential overlapping length, the circumferential light emitting position and the circumferential light shut-off position to form P*M cleaning areas.

[0032] In one embodiment, in the step of calculating the circumferential light-emitting position and the circumferential light-off position of the cleaning area, the circumferential light-emitting position and the circumferential light-off position are determined using the following formula:

[0033] S ij起 =(i-1)*C2+(j-1)*(H3+C1);

[0034] S ij终 =S ij起 +C2;

[0035] Where i represents the i-th equal partition, and the value of i is (1, P), j represents the j-th cleaning, and the value of j is (1, M), S ij起 S represents the light output position for the jth cleaning of the i-th equal partition.ij终 represents the light-off position for the j-th cleaning of the i-th equal partition.

[0036] In one embodiment, the step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned includes:

[0037] Move the laser field mirror to the axial position A corresponding to the kth cleaning section k , to perform the operation of cleaning the kth cleaning segment;

[0038] Using a laser to repeatedly perform circumferential scanning along the direction from the axial cleaning starting point to the axial cleaning end point, and the length of the circumferential scanning is the circumferential cleaning length, so as to sequentially clean each cleaning area in the kth cleaning section;

[0039] When the kth cleaning section is cleaned, the laser field mirror is moved to an axial position corresponding to the next cleaning section to perform the operation of cleaning the next cleaning section until the N+1th cleaning section is cleaned.

[0040] In one embodiment, the step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned further includes:

[0041] Rotate the roller at a constant speed;

[0042] The laser is used to clean the j-th cleaning area of ​​the i-th equally divided area in turn;

[0043] The laser beam is from S ij起 The circumferential scanning starts. When the scanning length reaches the circumferential cleaning length H1, the laser beam steps along the axial direction and continues to scan circumferentially in the opposite direction until the laser beam scans to S ij终 ;

[0044] When the Mth cleaning area of ​​the Pth equally divided area is cleaned, that is, the cleaning of the cleaning section is completed, the laser moves axially to clean the next cleaning section until all cleaning sections are cleaned.

[0045] The roller surface cleaning method of the present invention has the following beneficial effects compared with the prior art: by presetting a suitable axial cleaning length, axial overlapping length, circumferential cleaning length and circumferential overlapping length, the roller surface is divided into several cleaning segments in the axial direction, and there is an axial overlapping area between axially adjacent cleaning segments; the cleaning segment is then divided into several cleaning areas in the circumferential direction, and there is a circumferential overlapping area between circumferentially adjacent cleaning areas; a laser is then used to perform cleaning operations on the cleaning areas in sequence, thereby improving the cleaning efficiency, and effectively avoiding the problem of poor cleaning effect caused by excessive cleaning area at a single time, and effectively ensuring that there are no missed cleaning dead corners on the roller surface, thereby improving the comprehensiveness and uniformity of cleaning; the present invention can also adapt to cleaning operations with different roller surface sizes and cleaning requirements, and is more flexible, thereby meeting the cleaning needs in different scenarios.

[0046] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] Figure 1 A flow chart of the roller surface cleaning method provided by the present invention;

[0049] Figure 2 Schematic diagram of the application scenario of the roller surface cleaning method provided by the present invention Figure 1 , i.e. the schematic diagram of the axial splicing of the roller surface;

[0050] Figure 3 Schematic diagram of the application scenario of the roller surface cleaning method provided by the present invention Figure 2 , which is a schematic diagram of the circumferential splicing of the cleaning section. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0058] See also Figures 1 to 3 As shown, the present invention discloses a specific embodiment of a roller surface cleaning method, comprising the following steps:

[0059] S1, preset axial cleaning length and axial overlapping length;

[0060] S2, dividing the roller surface into a plurality of cleaning segments in the axial direction, the length of each cleaning segment being the axial cleaning length, and there being an axial overlapping area between the axially adjacent cleaning segments, the length of each axial overlapping area being the axial overlapping length;

[0061] S3, preset circumferential cleaning length and circumferential overlapping length;

[0062] S4, dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, the length of each cleaning area being the circumferential cleaning length, and there being a circumferential overlapping area between the circumferentially adjacent cleaning areas, the length of each circumferential overlapping area being the circumferential overlapping length;

[0063] S5, using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned.

[0064] Specifically, by presetting a suitable axial cleaning length, axial overlapping length, circumferential cleaning length and circumferential overlapping length, the roller surface is divided into several cleaning segments in the axial direction, and there is an axial overlapping area between axially adjacent cleaning segments. The cleaning segment is then divided into several cleaning areas in the circumferential direction, and there is a circumferential overlapping area between circumferentially adjacent cleaning areas. A laser is then used to perform cleaning operations on the cleaning areas in turn, thereby improving the cleaning efficiency and effectively avoiding the problem of poor cleaning effect caused by a single cleaning area that is too large. It can also effectively ensure that there are no missed cleaning dead corners on the roller surface, thereby improving the comprehensiveness and uniformity of cleaning. In addition, the present invention can also adapt to cleaning operations with different roller surface sizes and cleaning requirements, and is more flexible, thereby meeting cleaning needs in different scenarios.

[0065] In one embodiment, in the step S1 of presetting the axial cleaning length and the axial overlapping length, the axial cleaning length and the axial overlapping length are determined using the following formula:

[0066] N = (D1-L1) / (L1-L2);

[0067] Where N is the number of laser field mirror movements, D1 is the total cleaning length, L1 is the axial cleaning length, and L2 is the axial overlapping length. The value range of L1 is (L 1min , L 1max ), the value range of L2 is (L 2min , L 2max );

[0068] All combinations of L1 and L2 are traversed in a loop. When the calculated result of N is a positive integer, the corresponding L1 and L2 are the preset values ​​of the axial cleaning length and the axial overlapping length.

[0069] Specifically, during the calculation, L1 is converted from L 1max Start traversing in the decreasing direction, and the interval between each value is 1mm; L2 starts from L 2min Start traversing in a loop in the increasing direction, and the interval between each value is 1mm. When the calculation result of N is a positive integer, the loop traversal can be stopped, and the corresponding L1 and L2 are the preset values ​​of the axial cleaning length and the axial overlap length. By accurately calculating L1 and L2, the cleaning path is optimized, unnecessary movement of the laser field mirror and repeated cleaning are avoided, thereby reducing resource consumption and energy consumption, improving cleaning efficiency, and ensuring that the total cleaning length D1 can be completely covered, and each movement can effectively clean the designated area of ​​the roller surface, thereby improving the cleaning quality; at the same time, this calculation method allows the axial cleaning length and the axial overlap length to be flexibly adjusted within the value range, so as to flexibly adapt to cleaning operations with different roller surface sizes and cleaning requirements.

[0070] In one embodiment, after the step S1 of presetting the axial cleaning length and the axial overlapping length, the method further comprises:

[0071] The axial cleaning starting point and axial cleaning end point of each cleaning section are calculated.

[0072] Specifically, as the determined value, 0 is the axial cleaning starting point of the first cleaning segment, D1 is the axial cleaning end point of the N+1th cleaning segment (i.e., the last cleaning segment), and the axial cleaning starting point of the kth cleaning segment is W. k起 =(k-1)*(L1-L2), the axial cleaning end point of the kth cleaning section is W k终 =W k起+L1. The calculated starting and ending information can simplify the cleaning process, reduce the workload of manual calculation and planning, and conveniently monitor the progress and status of the cleaning operation to ensure that the cleaning operation is carried out according to the predetermined plan.

[0073] Wherein, the moving starting point of the laser field mirror is preset according to the axial cleaning starting point and the axial cleaning end point of the first cleaning section.

[0074] Specifically, when k=1, the axial cleaning starting point W of the first cleaning section is 1起 = 0, the axial cleaning end point of the first cleaning section is W 1终 = L1, the moving starting point of the laser field mirror is located at W 1起 and W 1终 Preferably, the moving starting point d1 of the laser field mirror is located between W 1起 and W 1终 The middle position between the two, that is, d1 = L1 / 2, makes the laser scanning path more uniform and continuous when the laser beam is used to scan from the axial cleaning starting point to the axial cleaning end point, avoiding the uneven scanning or omission problems caused by the laser starting position deviating from the center, thereby making full use of the cleaning ability and efficiency of the laser, helping to ensure the consistency of cleaning quality and improving the overall cleaning effect.

[0075] The axial position of the laser field mirror corresponding to each cleaning section is calculated according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror.

[0076] Specifically, in the step of calculating the axial position of the laser field mirror corresponding to each cleaning section according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror, the axial position is determined by the following formula:

[0077] A k =d1+(k-1)*(L1-L2);

[0078] Where k represents the kth cleaning segment, and the value of k is (1, N+1), A k is the axial position of the laser field mirror corresponding to the kth cleaning section, and d1 represents the moving starting point of the laser field mirror.

[0079] Preferably, d1 = L1 / 2, that is, A k =L1 / 2+(k-1)*(L1-L2), so that the laser field mirror always corresponds to the middle position of each cleaning section when cleaning each cleaning section, thereby making the laser scanning path more uniform and continuous, avoiding the uneven scanning or omission problem caused by the deviation of the starting position of the laser field mirror from the center, so as to make full use of the cleaning ability and efficiency of the laser, help ensure the consistency of cleaning quality, and improve the overall cleaning effect.

[0080] In a specific embodiment, after the step of calculating the axial position of the laser field mirror corresponding to each cleaning section according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror, it also includes:

[0081] The positive soft limit and the negative soft limit of the laser field mirror are calculated according to the moving starting point of the laser field mirror and the axial distance of the laser field mirror corresponding to the last cleaning section.

[0082] Specifically, positive soft limit = d1 + N * (L1-L2) - d2, negative soft limit = d1 + d2. d2 is the preset limit distance, and the value range is 5-20mm. The positive soft limit is used to determine whether the laser field mirror has reached the last cleaning section. When the distance between the laser field mirror and the axial cleaning starting point of the first cleaning section is greater than the distance between the positive soft limit and the axial cleaning starting point of the first cleaning section, it is determined that the laser field mirror is already in the last cleaning section, and the laser field mirror will directly return to the moving starting point the next time it moves. The negative soft limit is used to determine whether the laser field mirror is in the first cleaning section. When the distance between the position of the laser field mirror and the axial cleaning starting point of the first cleaning section is less than the distance between the negative soft limit and the axial cleaning starting point of the first cleaning section, it is determined that the laser field mirror is in the first cleaning section, and the laser field mirror will move in the direction of the positive soft limit next time, and the moving distance is L1-L2. When the position of the laser is between the negative soft limit and the positive soft limit, the movement of the laser field mirror will continue the direction of the previous movement.

[0083] Through the positive soft limit and negative soft limit, the laser field mirror can intelligently determine the next moving direction, thereby optimizing the cleaning strategy. When the laser field mirror reaches the last cleaning section, it will move in the direction of the moving starting point to prepare for the next cycle cleaning; when the laser field mirror is in the first cleaning section, it will move in the direction of the positive soft limit to continue the cleaning process. This strategy ensures the continuity and efficiency of cleaning, and also ensures that the laser field mirror will not exceed the predetermined cleaning range during the cleaning process, reducing unnecessary movement and repeated cleaning, thereby improving the overall cleaning efficiency. At the same time, the setting of positive and negative soft limits also helps prevent the laser field mirror from malfunctioning or being damaged due to exceeding the predetermined range during the cleaning process, thereby enhancing the stability of the equipment. In addition, the preset limit distance d2 has a value range of 5-20mm, which provides sufficient flexibility to adapt to different cleaning needs and equipment configurations. By adjusting the value of d2, the cleaning effect can be optimized to meet the application requirements in different scenarios.

[0084] In one embodiment, the step of dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, the length of each cleaning area being the circumferential cleaning length, and there being a circumferential overlapping area between the circumferentially adjacent cleaning areas, the length of each circumferential overlapping area being the circumferential overlapping length, comprises:

[0085] The cleaning section is divided into P equal sections in the circumferential direction, and each equal section is divided into M cleaning areas, wherein the circumferential overlapping area exists between adjacent cleaning areas.

[0086] Specifically, by subdividing the cleaning segment into P*M cleaning areas, the laser can clean the cleaning segment in an orderly manner, thereby improving the cleaning efficiency. In addition, there is a circumferential overlapping area between adjacent cleaning areas, which improves the comprehensiveness and thoroughness of cleaning. It can also compensate for the unevenness in the cleaning process to a certain extent, making the overall cleaning quality more stable and reliable.

[0087] In one embodiment, in the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, the number P of equal partitions is determined by the following formula:

[0088] P = Rounddown (C1 / (v*t+h));

[0089] Among them, Rounddown means rounding down, C1 is the circumference of the roller, v is the linear speed of the roller, t is the duration of each laser light emission, and h is the subdivision compensation.

[0090] Specifically, by accurately calculating the P value, it is possible to ensure that the cleaning section is evenly and accurately divided into several equal partitions, which helps to achieve a more uniform cleaning effect and avoid over-cleaning or missing certain areas. At the same time, it can also optimize the movement path and light output times of the laser field mirror, thereby improving the cleaning efficiency. In addition, by adjusting v and t, the cleaning rhythm of the roller surface can be changed, so that the cleaning operation of the roller surface becomes stable and efficient. In addition, by setting the subdivision compensation, it is possible to effectively prevent areas from being missed, thereby improving the cleaning quality.

[0091] In one embodiment, in the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, the number of cleaning times M is determined by the following formula:

[0092] M=Roundup(C2 / H3), C2=C1 / P, H3=H1-H2;

[0093] Among them, Roundup means rounding up, C1 is the roller circumference, C2 is the length of the equally divided area, H1 is the circumferential cleaning length, H2 is the circumferential overlapping length, and H3 is the effective cleaning length.

[0094] Specifically, the value range of H1 is between 50-200mm, H2 is between 1 / 5-2 / 3 of H1, and v*t>H1. By using the round-up function to calculate the number of cleaning times M, it can be ensured that at least enough cleaning times are performed in each equal partition to cover the length of the entire equal partition. This helps to avoid any area being missed and ensure the integrity of the cleaning. At the same time, the number of movements and cleaning paths of the laser field mirror can be optimized to avoid unnecessary repeated cleaning or missed areas, thereby improving cleaning efficiency and cleaning quality.

[0095] In one embodiment, the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, comprises:

[0096] The circumferential light-emitting position and circumferential light-off position of the cleaning area are calculated;

[0097] The cleaning section is divided according to the circumferential cleaning length, the circumferential overlapping length, the circumferential light emitting position and the circumferential light shut-off position to form P*M cleaning areas.

[0098] Specifically, by accurately calculating the circumferential light-emitting position and the circumferential light-off position and dividing the cleaning sections accordingly, it can be ensured that each cleaning area is fully and evenly cleaned, thereby improving the cleaning efficiency and cleaning quality.

[0099] In one embodiment, in the step of calculating the circumferential light-emitting position and the circumferential light-off position of the cleaning area, the circumferential light-emitting position and the circumferential light-off position are determined using the following formula:

[0100] S ij起 =(i-1)*C2+(j-1)*(H3+C1);

[0101] S ij终 =S ij起 +C2;

[0102] Where i represents the i-th equal partition, and the value of i is (1, P), j represents the j-th cleaning, and the value of j is (1, M), S ij起 S represents the light output position for the jth cleaning of the i-th equal partition. ij终 represents the light-off position for the j-th cleaning of the i-th equal partition.

[0103] Specifically, by accurately calculating the circumferential light output position and the circumferential light shut-off position, it helps to ensure the accuracy and consistency of the cleaning operation, thereby improving the cleaning quality.

[0104] In one embodiment, the step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned includes:

[0105] Move the laser field mirror to the axial position A corresponding to the kth cleaning section. k , to perform the operation of cleaning the kth cleaning segment;

[0106] Using a laser to repeatedly perform circumferential scanning along the direction from the axial cleaning starting point to the axial cleaning end point, and the length of the circumferential scanning is the circumferential cleaning length, so as to sequentially clean each cleaning area in the kth cleaning section;

[0107] When the kth cleaning section is cleaned, the laser field mirror is moved to an axial position corresponding to the next cleaning section to perform the operation of cleaning the next cleaning section until the N+1th cleaning section is cleaned.

[0108] Specifically, first set k = 1, and then move the laser field mirror to the axial position A corresponding to the kth cleaning section. k , to perform the operation of cleaning the kth cleaning segment; when the kth cleaning segment is cleaned, let k = k + 1, and repeat the process of moving the laser field mirror to the axial position A corresponding to the kth cleaning segment k , to perform the steps of cleaning the kth cleaning segment, until the N+1th cleaning segment (i.e., the last cleaning segment) is cleaned. Through the above steps, the laser field mirror can be accurately positioned and the length of the circumferential scanning and the axial cleaning start and end points of each cleaning segment can be controlled to ensure the stability, reliability and accuracy of the cleaning operation. The axial overlapping area is provided between adjacent cleaning segments, which helps to avoid cleaning blind spots, thereby improving the cleaning quality, optimizing the cleaning path and reducing the number of movements of the laser field mirror, thereby improving the cleaning efficiency.

[0109] In one embodiment, the step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned further includes:

[0110] Rotate the roller at a constant speed;

[0111] The laser is used to clean the j-th cleaning area of ​​the i-th equally divided area in turn;

[0112] The laser beam is from S ij起 The circumferential scanning starts. When the scanning length reaches the circumferential cleaning length H1, the laser beam steps along the axial direction and continues to scan circumferentially in the opposite direction until the laser beam scans to S ij终 ;

[0113] When the Mth cleaning area of ​​the Pth equally divided area is cleaned, that is, the cleaning of the cleaning section is completed, the laser field mirror moves axially to clean the next cleaning section until all cleaning sections are cleaned.

[0114] Specifically, the step of using a laser to sequentially clean the j-th cleaning area of ​​the i-th equally divided area comprises:

[0115] Let j = 1,

[0116] The laser is used to clean the j-th cleaning area of ​​each equally divided area in turn;

[0117] When all the j-th cleaning areas of the equally divided areas are cleaned, let j=j+1, and repeat the step of using the laser to sequentially clean the j-th cleaning areas of the equally divided areas until all the cleaning areas are cleaned.

[0118] When cleaning a single cleaning area, the laser changes the position and direction of the laser beam through the galvanometer so that the laser beam moves and scans. k起 As the starting point of axial cleaning, and from S ij起 The circumferential scanning starts. When the scanning length reaches the circumferential cleaning length H1, the laser beam steps along the axial direction and continues to scan circumferentially in the opposite direction. After multiple reciprocating circumferential scanning, the laser beam scans axially to W k终 , and scan in the circumferential direction to S ij Finally, the cleaning of the jth cleaning area of ​​the ith equal partition is completed. After each cleaning area is cleaned, the laser beam is axially reset to W k起 , and start cleaning the next cleaning area until all cleaning areas in this cleaning section are cleaned.

[0119] More specifically, when the laser is cleaning a certain cleaning section, the number of rotations of the roller is counted from the moment the laser starts working, and the number of rotations of the roller corresponds to the number of cleanings of the equally divided sections, that is, when the roller rotates to the jth circle, the laser cleans the jth cleaning area of ​​the 1st, 2nd...ith...Pth equally divided sections in turn; correspondingly, when the roller completes the Mth circle, the Mth cleaning area of ​​the Pth equally divided section is also cleaned, that is, the last cleaning area of ​​the cleaning section is cleaned.

[0120] This embodiment rotates the roller at a uniform speed so that the laser can continuously and stably clean different cleaning sections, avoiding uneven cleaning or omissions caused by stalling or irregular rotation of the roller. Through precise control of the cleaning path and cleaning order, there are circumferential overlapping areas between the cleaning areas, which can effectively manage the cleaning process and help avoid cleaning blind spots, thereby ensuring the consistency and stability of the cleaning effect, improving the cleaning quality, and also optimizing the cleaning path and reducing the number of times the laser field mirror moves, thereby improving the cleaning efficiency.

[0121] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A roller surface cleaning method, characterized in that: The following steps are involved: Preset axial cleaning length and axial overlap length; Dividing the roller surface into a plurality of cleaning segments in the axial direction, the length of each cleaning segment is the axial cleaning length, and there is an axial overlapping area between the axially adjacent cleaning segments, and the length of each axial overlapping area is the axial overlapping length; Preset circumferential cleaning length and circumferential overlapping length; Dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, the length of each cleaning area being the circumferential cleaning length, and there being a circumferential overlapping area between the circumferentially adjacent cleaning areas, the length of each circumferential overlapping area being the circumferential overlapping length; The laser is used to clean each cleaning area in each cleaning section in turn until all cleaning sections are cleaned.

2. The roller surface cleaning method according to claim 1, characterized in that: In the step of presetting the axial cleaning length and the axial overlapping length, the axial cleaning length and the axial overlapping length are determined using the following formula: N = (D1-L1) / (L1-L2); Where N is the number of laser field mirror movements, D1 is the total cleaning length, L1 is the axial cleaning length, and L2 is the axial overlapping length. The value range of L1 is (L 1min , L 1max ), the value range of L2 is (L 2min , L 2max ); All combinations of L1 and L2 are traversed in a loop. When the calculated result of N is a positive integer, the corresponding L1 and L2 are the preset values ​​of the axial cleaning length and the axial overlapping length.

3. The roller surface cleaning method according to claim 2, characterized in that: After the step of presetting the axial cleaning length and the axial overlapping length, the method further includes: The axial cleaning starting point and axial cleaning end point of each cleaning section are calculated; Preset the moving starting point of the laser field mirror according to the axial cleaning starting point and the axial cleaning end point of the first cleaning section; The axial position of the laser field mirror corresponding to each cleaning section is calculated according to the moving starting point, axial cleaning length and axial overlapping length of the laser field mirror.

4. The roller surface cleaning method according to claim 3, characterized in that: In the step of calculating the axial position of the laser field mirror corresponding to each cleaning section according to the moving starting point of the laser field mirror, the axial cleaning length and the axial overlapping length, the axial position is determined by the following formula: TO k =d1+(k-1)*(L1-L2); Where k represents the kth cleaning segment, and the value of k is (1, N+1), A k is the axial position of the laser field mirror corresponding to the kth cleaning section, and d1 represents the moving starting point of the laser field mirror.

5. The roller surface cleaning method according to claim 1, characterized in that: The step of dividing the cleaning section into a plurality of cleaning areas in the circumferential direction, wherein the length of each cleaning area is the circumferential cleaning length, and there is a circumferential overlapping area between the circumferentially adjacent cleaning areas, and the length of each circumferential overlapping area is the circumferential overlapping length, comprises: The cleaning section is divided into P equal sections in the circumferential direction, and each equal section is divided into M cleaning areas, wherein the circumferential overlapping area exists between adjacent cleaning areas.

6. The roller surface cleaning method according to claim 5, characterized in that: In the step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, the number of cleaning times M is determined by the following formula: M=Roundup(C2 / H3), C2=C1 / P, H3=H1-H2; Among them, Roundup means rounding up, C1 is the roller circumference, C2 is the length of the equally divided area, H1 is the circumferential cleaning length, H2 is the circumferential overlapping length, and H3 is the effective cleaning length.

7. The roller surface cleaning method according to claim 6, characterized in that: The step of dividing the cleaning section into P equal partitions in the circumferential direction, and each equal partition is divided into M cleaning areas, wherein there is a circumferential overlapping area between adjacent cleaning areas, comprises: The circumferential light-emitting position and circumferential light-off position of the cleaning area are calculated; The cleaning section is divided according to the circumferential cleaning length, the circumferential overlapping length, the circumferential light emitting position and the circumferential light shut-off position to form P*M cleaning areas.

8. The roller surface cleaning method according to claim 7, characterized in that: In the step of calculating the circumferential light-emitting position and the circumferential light-off position of the cleaning area, the circumferential light-emitting position and the circumferential light-off position are determined using the following formula: S ij起 =(i-1)*C2+(j-1)*(H3+C1); S ij终 =S ij起 +C2; Where i represents the i-th equal partition, and the value of i is (1, P), j represents the j-th cleaning, and the value of j is (1, M), S ij起 S represents the light output position for the jth cleaning of the i-th equal partition. ij终 represents the light-off position for the j-th cleaning of the i-th equal partition.

9. The roller surface cleaning method according to claim 4, characterized in that: The step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned includes: Move the laser field mirror to the axial position A corresponding to the kth cleaning section. k , to perform the operation of cleaning the kth cleaning segment; Using a laser to repeatedly perform circumferential scanning along the direction from the axial cleaning starting point to the axial cleaning end point, and the length of the circumferential scanning is the circumferential cleaning length, so as to sequentially clean each cleaning area in the kth cleaning section; When the kth cleaning section is cleaned, the laser field mirror is moved to an axial position corresponding to the next cleaning section to perform the operation of cleaning the next cleaning section until the N+1th cleaning section is cleaned.

10. The roller surface cleaning method according to claim 8, characterized in that: The step of using a laser to sequentially clean each cleaning area in each cleaning section until all cleaning sections are cleaned also includes: Rotate the roller at a constant speed; The laser is used to clean the j-th cleaning area of ​​the i-th equally divided area in turn; The laser beam is from S ij起 The circumferential scanning starts. When the scanning length reaches the circumferential cleaning length H1, the laser beam steps along the axial direction and continues to scan circumferentially in the opposite direction until the laser beam scans to S ij终 ; When the Mth cleaning area of ​​the Pth equally divided area is cleaned, that is, the cleaning of the cleaning section is completed, the laser moves axially to clean the next cleaning section until all cleaning sections are cleaned.

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