Cold-rolled strip steel quality control method and device, medium and product
By automatically identifying and removing roller mark defects of cold-rolled strip, the problem of time-consuming manual inspection is solved, efficient roller mark defect treatment is achieved, and rolling efficiency and surface quality are improved.
Patent Information
- Application Number
- CN202510920846.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2025-09-30
AI Technical Summary
In the existing technology, roller mark defects on the surface of cold-rolled strip steel need to be manually inspected and removed, resulting in low rolling efficiency and consuming a lot of manpower.
By detecting the roller mark defect information on the strip and combining it with the roller mark cycle of the auxiliary roller system, the auxiliary roller system with impurities attached can be automatically identified and removed, avoiding manual inspection one by one.
It improves rolling efficiency, reduces labor costs, quickly removes roller mark defects, and improves strip surface quality.
Smart Images
Figure CN120715035A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of cold-rolled steel strips, and in particular to a method, device, medium and product for quality control of cold-rolled steel strips. Background Art
[0002] Due to its excellent corrosion resistance, superior surface quality, and high dimensional accuracy, cold-rolled stainless steel sheet is widely used in industries such as petrochemicals, railways, automobiles, elevators, and home appliances, with market demand growing annually. Stainless steel cold-rolled sheet is typically rolled using a Sendkimer reversible cold rolling mill, which can produce cold-rolled coils of varying specifications. A cold rolling mill consists of a main rolling mill system and a non-main rolling mill system. The non-main rolling mill system may include profile rollers, guide rollers, and wiper rollers. Foreign matter adhering to the non-main rolling mill system can cause roller marks on the strip surface, resulting in substandard surface quality.
[0003] In related technologies, in order to ensure that the surface quality of the strip meets the application requirements, the rolling mill is generally stopped after rolling 8-10 meters in the finished product pass, and the on-site surface inspection personnel need to check the surface quality. If the surface quality meets the requirements, the rolling mill will start and continue rolling until the rolling is completed. If the surface quality does not meet the requirements, it is necessary to manually find the roller marks with impurities and manually remove the impurities. This process requires a lot of manpower and a long processing time, which seriously affects the rolling efficiency of the rolling mill. Summary of the Invention
[0004] Embodiments of the present invention provide a cold-rolled strip quality control method, device, medium and product.
[0005] In a first aspect, an embodiment of the present invention provides a method for controlling the quality of a cold-rolled steel strip, comprising:
[0006] If the steel strip has been rolled to a target length on the rolling mill, controlling the rolling mill to stop rolling, wherein the rolling mill comprises a plurality of auxiliary roll systems, wherein each of the plurality of auxiliary roll systems is a non-main roll system of the rolling mill for auxiliary rolling;
[0007] If multiple roller mark defects are detected on the strip steel of the target length, determining target information of each of the multiple roller mark defects;
[0008] Determining at least one auxiliary roller system to be processed with impurities attached thereto based on the target information of each roller print defect and the roller print cycle of each auxiliary roller system;
[0009] An impurity removal operation is performed on the at least one auxiliary roller system to be processed.
[0010] In some embodiments, the method further comprises:
[0011] Determining a preset running time of the rolling mill for performing strip quality inspection based on a rolling speed of the rolling mill;
[0012] If it is detected that the rolling mill has run for the preset running time, it is determined that the steel strip has been rolled to the target length on the rolling mill.
[0013] In some embodiments, the target information of each roller mark defect includes position information and morphological information of each roller mark defect, and determining at least one auxiliary roller system to be processed with impurities attached thereto based on the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system includes:
[0014] Determine N roller mark defect groups based on the position information of each roller mark defect, wherein for each roller mark defect group, all roller mark defects in the roller mark defect group are located on the same straight line, the straight line is parallel to the rolling direction of the rolling mill, and N is a positive integer;
[0015] For each roller mark defect group, based on the morphological information of each roller mark defect in the roller mark defect group, M roller mark defects with consistent morphology are screened out, and the distance between any two roller mark defects in the M roller mark defects is determined, obtaining a total of K distances, where K is a positive integer and M is an integer greater than 1;
[0016] For each roller mark defect group, based on the K distances corresponding to the roller mark defect group and the roller mark period of each auxiliary roller system, the auxiliary roller system to be processed with impurities attached is determined.
[0017] In some embodiments, determining, for each roller mark defect group, the auxiliary roller system to be processed with impurities attached thereto based on the K distances corresponding to the roller mark defect group and the roller mark period of each auxiliary roller system includes:
[0018] For each roller mark defect group, each of the K distances corresponding to the roller mark defect group is compared with the roller mark period corresponding to each auxiliary roller system;
[0019] If the comparison result shows that the target distance is consistent with the roller printing period of the target auxiliary roller system, the target auxiliary roller system is used as the auxiliary roller system to be processed.
[0020] In some embodiments, the target information of each roller print defect includes size information of each roller print defect. After determining at least one auxiliary roller system to be processed with impurities attached thereto, the method further comprises: determining a roller print defect corresponding to each auxiliary roller system to be processed from the plurality of roller print defects;
[0021] The performing of the impurity removal operation for the at least one auxiliary roller system to be processed includes: determining the impurity level corresponding to each auxiliary roller system to be processed based on the size information of the roller mark defect corresponding to each auxiliary roller system to be processed; if there is a first impurity level of the first auxiliary roller system to be processed that is lower than a preset level, determining the target speed corresponding to the first impurity level based on a preset correspondence between the impurity level and the rolling mill speed; and increasing the speed of the rolling mill to the target speed to remove impurities attached to the first auxiliary roller system to be processed.
[0022] In some embodiments, after determining the impurity level corresponding to each auxiliary roller system to be processed, the method further includes:
[0023] If there is a second auxiliary roller system to be processed, and the second impurity level is higher than or equal to the preset level, determining the type of the second auxiliary roller system to be processed;
[0024] If the type of the second auxiliary roller system to be processed is an auxiliary roller system other than the wiping roller, the coiler in the rolling mill is controlled to reverse for a preset reversal time so that a gap is created between the second auxiliary roller system to be processed and the strip steel, so as to remove impurities from the second auxiliary roller system to be processed.
[0025] In some embodiments, after determining the type of the second auxiliary roller system to be processed, the method further includes:
[0026] If the second auxiliary roller system to be processed is a wiping roller, the second auxiliary roller system to be processed is controlled to be raised to create a gap between the second auxiliary roller system to be processed and the strip steel, so as to remove impurities from the second auxiliary roller system to be processed.
[0027] In a second aspect, an embodiment of the present invention provides a cold-rolled strip quality control device, comprising:
[0028] a control module, configured to control the rolling mill to stop rolling if the steel strip has been rolled to a target length on the rolling mill, wherein the rolling mill comprises a plurality of auxiliary roll systems, wherein each of the plurality of auxiliary roll systems is a non-main roll system of the rolling mill for assisting rolling;
[0029] A first determining module is configured to determine target information of each of the multiple roller mark defects if multiple roller mark defects are detected on the strip steel of the target length;
[0030] a second determining module, configured to determine at least one auxiliary roller system to be processed with impurities attached thereto based on target information of each roller mark defect and a roller mark cycle of each auxiliary roller system;
[0031] The execution module is used to execute an impurity removal operation on the at least one auxiliary roller system to be processed.
[0032] In a third aspect, the present invention provides a cold-rolled strip quality control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned cold-rolled strip quality control method when executing the program.
[0033] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in the above-mentioned cold-rolled strip quality control method when executed by a processor.
[0034] In a fifth aspect, an embodiment of the present invention provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it is used to load and execute the steps in the above-mentioned cold-rolled strip quality control method.
[0035] The above one or at least one technical solution in the embodiments of the present application has at least the following technical effects:
[0036] The cold-rolled steel strip quality control method provided in the embodiments of this specification controls the rolling mill to stop rolling if the steel strip has been rolled to a target length. The rolling mill includes multiple auxiliary roll systems, each of which is a non-main mill roll system used to assist in rolling. If multiple roll mark defects are detected on the target length of steel strip, target information for each of the multiple roll mark defects is determined. Based on the target information for each roll mark defect and the roll mark cycle of each auxiliary roll system, at least one auxiliary roll system to be processed that is adhered to impurities is identified. Impurity removal is then performed on the at least one auxiliary roll system to be processed. This solution predicts the auxiliary roll system to be processed that is adhered to impurities based on the multiple roll mark defects on the steel strip, and performs impurity removal on the at least one identified auxiliary roll system to be processed, eliminating the need for manual inspection of each auxiliary roll system, effectively reducing labor costs, and improving rolling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 A flow chart of a cold-rolled strip quality control method provided in an embodiment of this specification;
[0038] Figure 2 A schematic diagram of a cold rolling production line provided in an embodiment of this specification;
[0039] Figure 3 A schematic diagram of a cold rolling production line including three auxiliary roll systems provided in an embodiment of this specification;
[0040] Figure 4A schematic diagram of a module of a cold-rolled strip quality control device provided in an embodiment of this specification;
[0041] Figure 5 This is a schematic diagram of the structure of a cold-rolled strip quality control provided in an embodiment of this specification. DETAILED DESCRIPTION
[0042] The overall idea of the technical solution of the embodiment of the present application is as follows: if the strip steel has been rolled to a target length on the rolling mill, the rolling mill is controlled to stop the rolling operation, wherein the rolling mill includes a plurality of auxiliary roller systems, wherein each of the plurality of auxiliary roller systems is a non-rolling mill main roller system for auxiliary rolling; if a plurality of roller mark defects are detected on the strip steel of the target length, the target information of each of the plurality of roller mark defects is determined; based on the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system, at least one auxiliary roller system to be processed with impurities attached is determined; and an impurity removal operation is performed on the at least one auxiliary roller system to be processed.
[0043] The solution of the embodiments of this specification can predict the auxiliary roller system to be processed with impurities attached based on multiple roller mark defects on the strip, and remove impurities from at least one of the auxiliary roller systems to be processed, avoiding manual inspection of the auxiliary roller systems one by one, effectively reducing labor costs and improving rolling efficiency.
[0044] In order to better understand the above technical solutions, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.
[0045] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.
[0046] like Figure 1 FIG. 1 is a flow chart of a method for controlling the quality of cold-rolled strip steel provided in an embodiment of this specification, the method comprising the following steps:
[0047] S101: If the strip steel has been rolled to a target length on a rolling mill, controlling the rolling mill to stop rolling, wherein the rolling mill comprises a plurality of auxiliary roll systems, wherein each of the plurality of auxiliary roll systems is a non-main roll system of the rolling mill for auxiliary rolling;
[0048] S102: If multiple roller mark defects are detected on the steel strip of the target length, determine target information of each of the multiple roller mark defects;
[0049] S103: determining at least one auxiliary roller system to be processed with impurities attached thereto based on the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system;
[0050] S104: performing an impurity removal operation on the at least one auxiliary roller system to be processed.
[0051] The methods provided in the embodiments of this specification can be applied to cold rolling mills. It should be noted that the rolling mills in a cold rolling mill may include a main rolling mill roll system and an auxiliary rolling mill roll system. The main rolling mill roll system directly participates in the strip rolling deformation process, while the auxiliary rolling mill roll system is a non-main rolling mill roll system that does not directly participate in the strip rolling deformation process but plays an auxiliary role in the rolling process. The non-main rolling mill roll system may include guide rollers, profile rollers, wiping rollers, and the like.
[0052] like Figure 2 The above is a schematic diagram of a cold rolling production line provided in an embodiment of this specification. The production line is provided with n auxiliary roller systems, which are M1 to M2 in the rolling direction. n .
[0053] like Figure 3 FIG. 1 is a schematic diagram of a cold rolling production line including three auxiliary roller systems provided in an embodiment of this specification. Figure 3 In the cold rolling production line shown in FIG, the three auxiliary rollers included are a guide roller M1, a plate roller M2 and a wiping roller M3.
[0054] It should be noted that when impurities are attached to the auxiliary roller system, roller mark defects will be formed on the surface of the strip. In order to improve the surface quality of the strip, the cold-rolled strip quality control method provided in the embodiment of this specification can be used to quickly identify the auxiliary roller system with impurities attached and remove impurities on the auxiliary roller system.
[0055] In step S101, the target length is the length used to inspect the surface quality of the strip. In some embodiments, to determine whether impurities are present on each auxiliary roll system of the rolling mill, the target length needs to cover all auxiliary roll systems of the rolling mill. That is, the strip of the target length needs to pass through all auxiliary roll systems so that all auxiliary roll systems act on the strip of the target length. Of course, the target length can also cover part of the auxiliary roll system to detect whether impurities are attached to the auxiliary roll system, but this is not limited here.
[0056] In some embodiments, the target length may be determined based on empirical values. For example, the target length may be preset, such as 10 m, 20 m, etc., which is not limited here.
[0057] In other embodiments, whether the strip length reaches the target length can be determined in the following manner: based on the rolling speed of the rolling mill, the preset running time of the rolling mill for strip quality inspection is determined; if it is detected that the rolling mill has run for the preset running time, it is determined that the strip has been rolled to the target length on the rolling mill.
[0058] Specifically, the preset running time can be set according to actual needs. For example, the preset running time is 1 / 3min, 0.5min, etc., which is not limited here. The rolling speed of the rolling mill can be set according to the actual needs of the site. For example, the rolling speed can be 30m / min, 60m / min, etc., then the target length can be the product of the preset time and the rolling speed. For example, when the preset running time is 1 / 3min and the rolling speed is 30m / min, the target length is 10m; when the preset running time is 1 / 3min and the rolling speed is 60m / min, the target length is 20m. It should be noted that the target length can also be set according to actual needs. Then, when the rolling mill has run for the preset running time, it means that the strip has been rolled to the target length. At this time, the rolling mill can be controlled to stop rolling to perform surface quality inspection on the strip of the target length.
[0059] In step S102, if multiple roll mark defects are detected on the target length, it indicates that some auxiliary roller systems have impurities attached to them. In order to further screen out auxiliary roller systems with rolling impurities attached, target information of each roll mark defect can be obtained.
[0060] In some embodiments, the target information of the roller mark defect may include position information and morphological information of the roller mark defect, wherein the morphological information may include size information and shape information of the roller mark defect.
[0061] The target information of the roller mark defect can be obtained in a variety of ways. For example, an image acquisition device on the cold rolling production line is used to capture the image of the surface of the target length of the strip, and each roller mark defect and the target information of each roller mark defect are identified through image processing.
[0062] In step S103, the roll mark cycle can be the cycle during which a roll mark defect occurs. For example, if impurity a is attached to auxiliary roller system A, and impurity a produces a roll mark defect 1 on the strip surface, then each time auxiliary roller system A rotates one full revolution, a roll mark defect 1 will be produced on the strip surface. The distance between two adjacent roll mark defects 1 can be used as the roll mark cycle of auxiliary roller system A.
[0063] The roll cycle of the auxiliary roll system can be determined based on the diameter of the auxiliary roll system. In some embodiments, the roll cycle of the auxiliary roll system can be determined based on the circumference of the auxiliary roll system. In other embodiments, the circumference of the auxiliary roll system can be modified based on sliding parameters to account for strip slip during rolling (e.g., forward and backward slip).
[0064] In the embodiment of this specification, step S103 can be determined in a variety of ways. For example, the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system are input into a pre-trained roller system determination model to be processed, and at least one auxiliary roller system to be processed is output through the model.
[0065] In some embodiments, the target information of each roller mark defect includes the position information and morphological information of each roller mark defect, and step S103 can be determined by the following steps: for the position information of each roller mark defect, determine N roller mark defect groups, wherein, for each roller mark defect group, all roller mark defects in the roller mark defect group are located on the same straight line, the straight line is parallel to the rolling direction of the rolling mill, and N is a positive integer; for each roller mark defect group, based on the morphological information of each roller mark defect in the roller mark defect group, screen out M roller mark defects with consistent morphology, and determine the distance between any two roller mark defects among the M roller mark defects, and obtain a total of K distances, wherein K is a positive integer and M is an integer greater than 1; for each roller mark defect group, based on the K distances corresponding to the roller mark defect group and the roller mark cycle of each auxiliary roller system, determine the auxiliary roller system to be processed with impurities attached.
[0066] Specifically, when an impurity is attached to an auxiliary roll system, the roll mark defects caused by this impurity on the strip are all located on the same straight line along the rolling direction. Furthermore, if multiple impurities are present on an auxiliary roll system, and they are all located on the same circumference of the roll system, then the roll mark defects caused by these impurities on the strip are also located on the same straight line. Furthermore, if impurities are present on multiple auxiliary roll systems, and the impurities on each auxiliary roll system are located in the same position across the width of the strip—for example, the distance between each impurity and the same edge of the strip is the same—then the roll mark defects caused by these impurities on the strip are also located on the same straight line. However, for impurities located at different widths, the roll mark defects corresponding to these impurities are located on different straight lines.
[0067] Therefore, in the embodiments of this specification, roll mark defects can be grouped based on their location on the strip, with roll mark defects located on the same straight line in the rolling direction considered the same group. For example, if there are six roll mark defects on the strip surface, four of which are located on one straight line and two on another straight line, and both lines are aligned with the rolling direction, then these six roll mark defects can be divided into two groups, where N is 2, with each group containing the roll mark defects on the same straight line.
[0068] As can be seen above, roller mark defects on the same straight line may be caused by a single impurity, multiple impurities on the same auxiliary roller system, or multiple impurities on different roller systems. Therefore, for each roller mark defect group, further analysis of the roller mark defect morphology is possible.
[0069] In some embodiments, the morphological information may include shape and size information. It should be understood that for the same impurity, the morphology of the roll mark defect caused by that impurity on the strip will not change. If the impurities attached to the auxiliary roller system are all different, the morphology of the roll mark defect caused by each impurity on the strip will also be different. Therefore, if the impurities have different morphologies, two roll mark defects with identical morphologies on the same straight line can be considered to be caused by the same impurity. If multiple similar impurities are present on the auxiliary roller system, the roll mark defects caused by similar impurities on the strip will also be approximately identical. Therefore, if the impurities have similar morphologies, roll mark defects with identical morphologies on the same straight line may also be caused by different impurities.
[0070] In the embodiments of this specification, for each roller mark defect group, M roller mark defects with consistent morphology can be first screened out. Since these M roller mark defects may be caused by the same impurity or different impurities, the distance between any two roller mark defects needs to be determined. For example, a roller mark defect group includes 6 roller mark defects, 4 of which have consistent morphology, and the other 2 have inconsistent morphology. Then, for the 4 consistent roller mark defects, the distance between any two roller mark defects is calculated, resulting in 6 distances, corresponding to M of 4 and K of 6. For the 2 consistent roller mark defects, a single distance is obtained, corresponding to M of 2 and K of 1.
[0071] Based on the K distances and the rolling cycle of each auxiliary roller system, the auxiliary roller system to be processed with impurities attached is determined in the following manner: for each roller print defect group, each distance of the K distances corresponding to the roller print defect group is compared with the rolling cycle corresponding to each auxiliary roller system; if the comparison result shows that the target distance is consistent with the rolling cycle of the target auxiliary roller system, the target auxiliary roller system is used as the auxiliary roller system to be processed.
[0072] Because consistent roll marks are likely caused by the same impurity on the auxiliary roller system, the distance between each pair of consistent roll mark defects can be compared with the roll mark cycle of each auxiliary roller system. If the distance between the roll mark defects matches the roll mark cycle of a particular auxiliary roller system, the auxiliary roller system is likely to have impurities attached, and the auxiliary roller system is designated as a candidate for treatment. In some embodiments, if the error between the distance between the defects and the roll mark cycle is less than a preset error, the two are considered consistent. The preset error can be set based on actual needs and is not limited here.
[0073] In the embodiment of this specification, at least one auxiliary roller system to be processed that may contain impurities can be determined based on the distance between roller print defects with consistent morphology and the roller print cycle of each auxiliary roller system, eliminating the need for manual inspection one by one, greatly reducing labor costs.
[0074] After determining at least one auxiliary roller system to be processed, the impurities of each auxiliary roller system to be processed may be removed in step S104.
[0075] In some embodiments, different removal strategies can be selected based on the size of the roll mark defects. It should be noted that during impurity removal, the roll mark defects corresponding to each auxiliary roller system to be processed can be determined from the multiple roll mark defects. Specifically, when determining the roller system to be processed based on the distance between roll mark defects with consistent morphology and the roll mark period of each auxiliary roller system, the roll mark defects can be associated with the roller system to be processed. For example, roll mark defect 1 may be caused by impurities on auxiliary roller system A, and roll mark defect 1 is associated with auxiliary roller system A.
[0076] Step S104 can be achieved in the following manner: based on the size information of the roller mark defects corresponding to each auxiliary roller system to be processed, determining the impurity level corresponding to each auxiliary roller system to be processed; if there is a first impurity level of the first auxiliary roller system to be processed that is lower than the preset level, based on the preset correspondence between the impurity level and the rolling mill speed, determining the target speed corresponding to the first impurity level; and increasing the speed of the rolling mill to the target speed to remove impurities attached to the first auxiliary roller system to be processed.
[0077] In some embodiments, multiple impurity level ranges can be preset based on the size information of the roller print defect. For example, if the impurity level range includes two levels, light and heavy, the size range of the roller print defect corresponding to the light level can be less than 5 mm, and the size range of the roller print defect corresponding to the heavy level can be greater than or equal to 5 mm. Taking the impurity level range as an example, if the impurity level range includes three levels, light, medium, and heavy, the size range of the roller print defect corresponding to the light level can be less than 5 mm, the size range of the roller print defect corresponding to the medium level can be greater than or equal to 5 mm and less than 7 mm, and the size range of the roller print defect corresponding to the heavy level can be greater than or equal to 7 mm. Of course, the impurity level and the corresponding size range can also be set according to actual needs, which is not limited here.
[0078] In the embodiments of this specification, for impurities with a low impurity level, i.e., small impurities such as roll marks, the rolling speed can be increased to remove the impurities through friction between the strip and the auxiliary roll system. The preset level can be limited according to actual needs. For example, in the case of the aforementioned impurity levels of light and heavy, the preset level can be heavy, and the light level is lower than the preset level. If the size of a roll mark defect falls within the size range corresponding to the light level, the auxiliary roll system associated with the roll mark defect is designated as the first auxiliary roll system to be processed. Furthermore, the impurities can be removed by increasing the rolling mill speed.
[0079] In some embodiments, a correspondence between the impurity level and the rolling mill speed can be pre-set. For example, the rolling mill speed corresponding to the light level is 50% higher than the original speed, and the rolling mill speed corresponding to the medium level is 60% higher than the original speed. People in this field can set it according to actual needs, and there is no limitation here.
[0080] If, based on the size information of the roller mark defect associated with the first auxiliary roller system to be processed, it is determined that the first impurity level of the first auxiliary roller system to be processed is lower than the preset level, the target speed of the rolling mill corresponding to the first impurity level can be determined according to the corresponding relationship between the impurity level and the rolling mill speed, and the rolling mill can be controlled to operate at the target speed, so as to remove impurities on the first auxiliary roller system to be processed.
[0081] In some embodiments, when the impurities are large, friction between the strip and the auxiliary roll system cannot effectively remove the impurities. Manual removal of the impurities may be necessary. In this case, the method in the embodiments of this specification may further include the following steps: if a second impurity level of a second auxiliary roll system to be processed is greater than or equal to a predetermined level, determining the type of the second auxiliary roll system to be processed; if the second auxiliary roll system to be processed is an auxiliary roll system other than a wiping roll, controlling the coiler in the rolling mill to reverse for a predetermined reversal time to create a gap between the second auxiliary roll system to be processed and the strip, thereby removing impurities from the second auxiliary roll system to be processed.
[0082] Specifically, using the heavy level as an example, if the second impurity level of the second auxiliary roller system to be processed is determined to be heavy based on the size information of the roller mark defect associated with the second auxiliary roller system to be processed, manual impurity removal is required. To avoid safety hazards during manual cleaning, a clean space for the auxiliary roller system must be reserved. The clean space is created differently for different types of auxiliary roller systems, so the type of the auxiliary roller system to be processed must be determined.
[0083] In some embodiments, still using the aforementioned second auxiliary roller system for processing as an example, if the second auxiliary roller system for processing is a type other than a wiping roller, such as a plate roller or guide roller, the coiler can be controlled to rotate for a preset duration, where the preset duration can be set according to actual needs. Reversing the coiler reduces the tension of the strip, thereby creating a gap between the second auxiliary roller system for processing and the strip, allowing workers to insert cleaning tools into the gap for cleaning. In some embodiments, the second auxiliary roller system for processing can also be controlled to rotate during the cleaning process, allowing the cleaning tool to reach every area of the second auxiliary roller system for processing, making it easier for workers to clean the strip.
[0084] In some embodiments, if the second auxiliary roller system to be processed is a wiping roller, the second auxiliary roller system to be processed is controlled to be raised so that a gap is created between the second auxiliary roller system to be processed and the strip steel to remove impurities from the second auxiliary roller system to be processed.
[0085] Specifically, the wiping roller can be raised and lowered. Therefore, when the second auxiliary roller to be processed is a wiping roller, the wiping roller can be raised to create a gap between the second auxiliary roller to be processed and the strip steel so that the staff can wipe the auxiliary roller system and remove impurities.
[0086] In the embodiments of this specification, during manual wiping, the wiping position of the auxiliary roller system to be processed can also be determined. For example, when associating the auxiliary roller system to be processed with a roller mark defect, the location of the impurity on the auxiliary roller system to be processed can be determined based on the location of the roller mark defect across the strip width. For example, if the auxiliary roller system to be processed is B, the corresponding roller mark defect is 2, and the location of roller mark defect 2 across the strip width is d, then the location on the auxiliary roller system to be processed at the distance d from the strip edge L can be used as the wiping position, and the wiping position can be notified to the staff. This saves the staff from wasting time searching for the impurity location and improves cleaning efficiency.
[0087] To sum up, the method provided in the embodiments of this specification can quickly determine the auxiliary roller system to be processed based on the target information of the roller mark defects. For low-level impurities, the impurities attached to the auxiliary roller system to be processed can be removed by speeding up the rolling speed. For high-level impurities, the auxiliary roller system to be processed and the location of the impurities can be screened out, avoiding manual inspection of impurities on each roller system one by one, effectively shortening the cleaning time and improving the rolling efficiency.
[0088] Based on the same inventive concept, the embodiment of this specification also provides a cold-rolled strip quality control device, such as Figure 4 As shown, the device includes:
[0089] a control module 401 configured to control the rolling mill to stop rolling if the strip has been rolled to a target length on the rolling mill, wherein the rolling mill comprises a plurality of auxiliary roll systems, wherein each of the plurality of auxiliary roll systems is a non-main roll system of the rolling mill for assisting rolling;
[0090] A first determining module 402 is configured to determine target information of each of the plurality of roller mark defects if a plurality of roller mark defects are detected on the strip of steel of the target length;
[0091] A second determining module 403 is configured to determine at least one auxiliary roller system to be processed that has impurities attached thereto based on the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system;
[0092] The execution module 404 is configured to execute an impurity removal operation on the at least one auxiliary roller system to be processed.
[0093] Regarding the above-mentioned device, the specific implementation method of each step has been described in detail in the embodiment of the cold-rolled strip quality control method provided in the embodiment of the specification, and will not be elaborated here.
[0094] Based on the same inventive concept, the embodiment of the present invention also provides a cold-rolled strip quality control device, such as Figure 5The method includes a memory 504, a processor 502, and a computer program stored in the memory 504 and executable on the processor 502. When the processor 502 executes the program, any one of the implementations of the cold-rolled strip quality control method is implemented.
[0095] Among them, Figure 5 In the embodiment of the present invention, a bus architecture (represented by bus 500) is shown. Bus 500 may include any number of interconnected buses and bridges, and bus 500 links various circuits including one or more processors represented by processor 502 and memory represented by memory 504. Bus 500 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 505 provides an interface between bus 500 and receiver 501 and transmitter 503. Receiver 501 and transmitter 503 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 502 is responsible for managing bus 500 and general processing, while memory 504 may be used to store data used by processor 502 when performing operations.
[0096] Based on the same inventive concept, an embodiment of this specification provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above-mentioned cold-rolled strip quality control method when executed by a processor.
[0097] Based on the same inventive concept, an embodiment of this specification provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it is used to load and execute the steps of the above-mentioned cold-rolled strip quality control method.
[0098] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, each functional unit may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.
[0099] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.
[0100] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.
[0101] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.
[0102] The foregoing description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.
Claims
1. A method for controlling the quality of cold-rolled strip steel, characterized in that: include: If the steel strip has been rolled to a target length on the rolling mill, controlling the rolling mill to stop rolling, wherein the rolling mill comprises a plurality of auxiliary roll systems, wherein each of the plurality of auxiliary roll systems is a non-main roll system of the rolling mill for auxiliary rolling; If multiple roller mark defects are detected on the strip steel of the target length, determining target information of each roller mark defect among the multiple roller mark defects; Determining at least one auxiliary roller system to be processed with impurities attached thereto based on the target information of each roller print defect and the roller print cycle of each auxiliary roller system; An impurity removal operation is performed on the at least one auxiliary roller system to be processed.
2. The method according to claim 1, wherein The method further comprises: Determining a preset running time of the rolling mill for performing strip quality inspection based on a rolling speed of the rolling mill; If it is detected that the rolling mill has run for the preset running time, it is determined that the steel strip has been rolled to the target length on the rolling mill.
3. The method according to claim 1, wherein The target information of each roller mark defect includes position information and morphological information of each roller mark defect. The determining of at least one auxiliary roller system to be processed with impurities attached thereto based on the target information of each roller mark defect and the roller mark cycle of each auxiliary roller system includes: Determine N roller mark defect groups based on the position information of each roller mark defect, wherein for each roller mark defect group, all roller mark defects in the roller mark defect group are located on the same straight line, the straight line is parallel to the rolling direction of the rolling mill, and N is a positive integer; For each roller mark defect group, based on the morphological information of each roller mark defect in the roller mark defect group, M roller mark defects with consistent morphology are screened out, and the distance between any two roller mark defects in the M roller mark defects is determined, obtaining a total of K distances, where K is a positive integer and M is an integer greater than 1; For each roller mark defect group, based on the K distances corresponding to the roller mark defect group and the roller mark period of each auxiliary roller system, the auxiliary roller system to be processed with impurities attached is determined.
4. The method according to claim 3, wherein The method of determining, for each roller mark defect group, an auxiliary roller system to be processed with impurities attached thereto based on the K distances corresponding to the roller mark defect group and the roller mark cycle of each auxiliary roller system, includes: For each roller mark defect group, each of the K distances corresponding to the roller mark defect group is compared with the roller mark period corresponding to each auxiliary roller system; If the comparison result shows that the target distance is consistent with the rolling cycle of the target auxiliary roller system, the target auxiliary roller system is used as the auxiliary roller system to be processed.
5. The method according to claim 1, wherein The target information of each roller print defect includes size information of each roller print defect. After determining at least one auxiliary roller system to be processed with impurities attached thereto, the method further comprises: determining a roller print defect corresponding to each auxiliary roller system to be processed from the plurality of roller print defects; The performing of the impurity removal operation for the at least one auxiliary roller system to be processed includes: determining the impurity level corresponding to each auxiliary roller system to be processed based on the size information of the roller mark defect corresponding to each auxiliary roller system to be processed; if there is a first impurity level of the first auxiliary roller system to be processed that is lower than a preset level, determining the target speed corresponding to the first impurity level based on a preset correspondence between the impurity level and the rolling mill speed; and increasing the speed of the rolling mill to the target speed to remove impurities attached to the first auxiliary roller system to be processed.
6. The method according to claim 5, wherein After determining the impurity level corresponding to each of the auxiliary rollers to be processed, the method further includes: If there is a second auxiliary roller system to be processed, and the second impurity level is higher than or equal to the preset level, determining the type of the second auxiliary roller system to be processed; If the type of the second auxiliary roller system to be processed is an auxiliary roller system other than the wiping roller, the coiler in the rolling mill is controlled to reverse for a preset reversal time so that a gap is created between the second auxiliary roller system to be processed and the strip steel, so as to remove impurities from the second auxiliary roller system to be processed.
7. The method according to claim 6, wherein After determining the type of the second auxiliary roller system to be processed, the method further includes: If the second auxiliary roller system to be processed is a wiping roller, the second auxiliary roller system to be processed is controlled to be raised to create a gap between the second auxiliary roller system to be processed and the strip steel, so as to remove impurities from the second auxiliary roller system to be processed.
8. A cold-rolled strip quality control device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 7 when executing the program.
9. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.
10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the computer program is configured to load and execute the method according to any one of claims 1 to 7.