Working roll matching method, device and equipment and medium

Abstract

The invention discloses a working roller matching method and device, equipment and a medium. The working roller matching method comprises the steps that a roller matching instruction triggered by a user is received; in response to the roller matching instruction, the actual on-machine frequency, the actual abrasion loss and the actual abrasion width upper limit corresponding to each set of working roller in the available roller pool are determined; the corresponding maximum target width in all the to-be-rolled strip steel in the current plan list and surface quality demand parameters for the to-be-rolled strip steel are obtained; according to the actual loading times, the actual abrasion loss and the actual abrasion width upper limit corresponding to each set of working roller and the maximum target width corresponding to the current plan list, the loading priority corresponding to each set of working roller is determined; and according to the maximum target width, the surface quality demand parameters and the on-machine priority corresponding to each set of working rollers, the working rollers used for rolling the to-be-rolled strip steel corresponding to the current plan list are screened out from the available roller pool. The roller matching precision and efficiency are improved, the production efficiency is improved, and the quality and rolling stability of hot-rolled products are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolling, and in particular to a working roll matching method, device, equipment and medium. Background Art

[0002] Hot rolling is a method of producing steel, which mainly uses continuous casting slabs or initial rolling slabs as raw materials, which are heated in a walking beam heating furnace, dephosphorized by high-pressure water, and then enter the rough rolling mill. The rough rolling material is cut and then enters the finishing mill. After the final rolling, it is cooled by laminar flow and coiled by the coiler to become a straight coil. Hot rolling relies on the corresponding rollers on the rolling mill to roll the strip, and strips of different specifications may require different working rollers. Therefore, the working rollers on the rolling mill need to be configured.

[0003] Reasonable work roll configuration is crucial to ensure the quality of hot rolled products and rolling stability. Currently, work roll configuration is generally done manually based on experience, resulting in low roll matching accuracy, which can easily lead to quality problems during rolling, such as dimensional deviation, surface defects, etc. Therefore, how to improve the accuracy of mill roll matching is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a working roll matching method, device, equipment and medium, which solves the technical problem that in the prior art, roll matching is generally performed manually based on experience, resulting in low roll matching accuracy and easily leading to poor quality in the rolling process. This achieves the technical effect of improving the accuracy of rolling mill roll matching and thereby ensuring better quality of the rolling process.

[0005] In a first aspect, the present application provides a working roll matching method, the method comprising:

[0006] Receiving a roll allocation instruction triggered by a user, wherein the roll allocation instruction carries a current plan;

[0007] In response to the roll matching instruction, determine the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool; and obtain the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled;

[0008] Determine the machine priority corresponding to each set of working rolls according to the actual number of machine runs corresponding to each set of working rolls, the actual wear amount, the upper limit of the actual wear width, and the maximum target width corresponding to the current plan;

[0009] According to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current schedule is selected from the available roll pool.

[0010] Further, after selecting at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameter and the machine priority corresponding to each set of working rolls, the method further includes:

[0011] A set of target working rolls is selected from at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan, and the set of target working rolls is arranged on the corresponding frames according to the matching relationship between the roll diameters and the respective frames, and is used to roll the strip to be rolled corresponding to the current plan.

[0012] Further, the actual number of machine operations corresponding to each set of working rolls in the available roll pool is determined, including:

[0013] For each set of working rolls, obtain the actual grinding value of the working rolls after the last time the working rolls were removed from the machine;

[0014] When the actual grinding value corresponding to the set of working rolls is greater than or equal to a preset grinding threshold, determining that the actual number of machine operations corresponding to the set of working rolls is 0;

[0015] When the actual grinding value corresponding to the set of working rollers is less than the preset grinding threshold, the actual number of machine times corresponding to the set of working rollers is determined as: the number of times the set of working rollers are put on the machine increased by 1 based on the number of times the set of working rollers were put on the machine when they were last taken off the machine.

[0016] Further, determining the actual wear amount corresponding to each set of working rolls in the available roll pool includes:

[0017] For each set of working rolls, matching is performed with N width intervals corresponding to the preset target widths of the strips to be rolled, according to the target widths of the strips rolled each time in the corresponding actual number of times of the working rolls;

[0018] From the N width intervals, determine M target width intervals with the largest number of matching strips corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M<N;

[0019] Adding the wear amount of the set of working rolls corresponding to the M target width intervals corresponding to each rolling of the set of working rolls to obtain the wear component caused by each rolling of the set of working rolls in the actual number of times of rolling;

[0020] The wear components corresponding to each rolling of the set of working rolls in the actual number of times of machine operation are added together to obtain the actual wear amount corresponding to the set of working rolls.

[0021] Further, the determining of the upper limit of the actual wear width corresponding to each set of working rolls in the available roll pool includes:

[0022] Determine the maximum width value corresponding to each rolling of the set of working rolls in the M target width intervals in the actual number of rolling operations;

[0023] Determine the average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of rolling;

[0024] Obtain the length of the set of working rolls;

[0025] The upper limit of the wear width corresponding to each rolling of the set of working rolls in the actual number of times of the machine is obtained by subtracting the average roll shifting amount from half of the length and adding half of the maximum width value;

[0026] The maximum upper limit of wear width of the set of working rolls corresponding to the actual number of machine operations is taken as the actual upper limit of wear width of the set of working rolls.

[0027] Further, the determining of the machine priority corresponding to each set of working rolls according to the actual number of machine operations corresponding to each set of working rolls, the actual amount of wear, the upper limit of the actual wear width, and the maximum target width corresponding to the current plan sheet includes:

[0028] For each set of working rolls, when the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is less than or equal to the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the first priority;

[0029] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is greater than the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the second priority;

[0030] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, and the actual wear amount is greater than or equal to the preset wear threshold, determining that the priority of the set of working rolls is the third priority;

[0031] When the upper limit of the actual wear width corresponding to the set of working rolls is less than or equal to the maximum target width, determining the priority of the set of working rolls to be the fourth priority;

[0032] Among them, the priority levels of the first priority, the second priority, the third priority, and the fourth priority decrease in sequence.

[0033] Further, the step of selecting at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameter and the machine priority corresponding to each set of working rolls includes:

[0034] According to the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls whose machine priority meets the surface quality requirement parameters is selected from the available roll pool;

[0035] According to the maximum target width, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan is selected from at least one set of working rolls whose priority level on the machine meets the surface quality requirement parameters.

[0036] In a second aspect, the present application provides a working roll matching device, the device comprising:

[0037] An instruction receiving module, used for receiving a roll allocation instruction triggered by a user, wherein the roll allocation instruction carries a current plan;

[0038] An acquisition module is used to determine the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool in response to the roll matching instruction; and to obtain the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled;

[0039] A priority determination module, used to determine the machine priority corresponding to each set of working rolls according to the actual number of machine operations corresponding to each set of working rolls, the actual amount of wear, the upper limit of the actual wear width, and the maximum target width corresponding to the current plan;

[0040] The working roll screening module is used to screen out at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls.

[0041] Furthermore, the working roll screening module is also used for:

[0042] After selecting at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, a set of target working rolls is selected from at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan, and the set of target working rolls is arranged on the corresponding frames according to the matching relationship between the roll diameters and the respective frames, and is used to roll the strip to be rolled corresponding to the current plan.

[0043] Furthermore, the device also includes an actual number of machine times determination module, which is used to:

[0044] For each set of working rolls, obtain the actual grinding value of the working rolls after the last time the working rolls were removed from the machine;

[0045] When the actual grinding value corresponding to the set of working rolls is greater than or equal to a preset grinding threshold, determining that the actual number of machine operations corresponding to the set of working rolls is 0;

[0046] When the actual grinding value corresponding to the set of working rollers is less than the preset grinding threshold, the actual number of machine times corresponding to the set of working rollers is determined as: the number of times the set of working rollers are put on the machine increased by 1 based on the number of times the set of working rollers were put on the machine when they were last taken off the machine.

[0047] Furthermore, the device also includes an actual wear amount determination module, which is used to:

[0048] For each set of working rolls, matching is performed with N width intervals corresponding to the preset target widths of the strips to be rolled, according to the target widths of the strips rolled each time in the corresponding actual number of times of the working rolls;

[0049] From the N width intervals, determine M target width intervals with the largest number of matching strips corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M<N;

[0050] Adding the wear amount of the set of working rolls corresponding to the M target width intervals corresponding to each rolling of the set of working rolls to obtain the wear component caused by each rolling of the set of working rolls in the actual number of times of rolling;

[0051] The wear components corresponding to each rolling of the set of working rolls in the actual number of times of machine operation are added together to obtain the actual wear amount corresponding to the set of working rolls.

[0052] Furthermore, the device also includes an actual wear width upper limit determination module, which is used to:

[0053] Determine the maximum width value corresponding to each rolling of the set of working rolls in the M target width intervals in the actual number of rolling operations;

[0054] Determine the average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of the machine;

[0055] Obtain the length of the set of working rolls;

[0056] The upper limit of the wear width corresponding to each rolling of the set of working rolls in the actual number of times of the machine is obtained by subtracting the average roll shifting amount from half of the length and adding half of the maximum width value;

[0057] The maximum upper limit of the wear width of the set of working rollers corresponding to the actual number of machine operations is taken as the actual upper limit of the wear width of the set of working rollers.

[0058] Furthermore, the priority determination module is used to:

[0059] For each set of working rolls, when the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is less than or equal to the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the first priority;

[0060] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is greater than the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the second priority;

[0061] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, and the actual wear amount is greater than or equal to the preset wear threshold, determining that the priority of the set of working rolls is the third priority;

[0062] When the upper limit of the actual wear width corresponding to the set of working rolls is less than or equal to the maximum target width, determining the priority of the set of working rolls to be the fourth priority;

[0063] Among them, the priority levels of the first priority, the second priority, the third priority, and the fourth priority decrease in sequence.

[0064] Furthermore, the working roll screening module is also used for:

[0065] According to the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls whose machine priority meets the surface quality requirement parameters is selected from the available roll pool;

[0066] According to the maximum target width, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan is selected from at least one set of working rolls whose priority level on the machine meets the surface quality requirement parameters.

[0067] In a third aspect, the present application provides a roller matching device, comprising:

[0068] processor;

[0069] a memory for storing instructions executable by the processor;

[0070] Wherein, the processor is configured to execute to implement a working roll matching method provided in the first aspect.

[0071] In a fourth aspect, the present application provides a non-transitory computer-readable storage medium, which, when the instructions in the storage medium are executed by a processor of a roll matching device, enables the roll matching device to implement a working roll matching method as provided in the first aspect.

[0072] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0073] The embodiment of the present application is based on the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool, combined with the corresponding maximum target width of all the strips to be rolled in the current plan, and the surface quality requirement parameters of the current plan for the strips to be rolled, to determine the machine priority corresponding to each set of working rolls in the available roll pool, and then, combined with the maximum target width, the surface quality requirement parameters, and the machine priority corresponding to each set of working rolls, at least one set of working rolls is selected from the available roll pool for rolling the strips to be rolled corresponding to the current plan. It can be seen that the embodiment of the present application abandons the manual roll matching method in the related art, improves the roll matching accuracy and roll matching efficiency, and on this basis, can reduce the probability of quality problems caused by roll matching, improve production efficiency, fully consider the rolling process requirements, and thus ensure the quality of hot-rolled products and rolling stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0075] Figure 1A schematic diagram of a process flow of a working roll matching method provided in an embodiment of the present application;

[0076] Figure 2 A schematic structural diagram of a working roll matching device provided in an embodiment of the present application;

[0077] Figure 3 A schematic structural diagram of a roller matching device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0078] The embodiment of the present application provides a method for matching working rolls, thereby solving the technical problem in the prior art that the roll matching is generally performed manually based on experience, resulting in low roll matching accuracy and easily leading to poor quality during the rolling process.

[0079] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0080] A method for matching working rolls, the method comprising: receiving a roll matching instruction triggered by a user, wherein the roll matching instruction carries a current schedule; in response to the roll matching instruction, determining the actual number of machine runs, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in an available roll pool; and obtaining the corresponding maximum target width of all the strips to be rolled in the current schedule and the surface quality requirement parameters for the strips to be rolled; determining the machine priority corresponding to each set of working rolls according to the actual number of machine runs, actual wear amount, actual wear width upper limit, and the maximum target width corresponding to each set of working rolls; and selecting at least one set of working rolls for rolling the strip to be rolled corresponding to the current schedule from the available roll pool according to the maximum target width, the surface quality requirement parameters, and the machine priority corresponding to each set of working rolls.

[0081] The embodiment of the present application is based on the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool, combined with the corresponding maximum target width of all the strips to be rolled in the current plan, and the surface quality requirement parameters of the current plan for the strips to be rolled, to determine the machine priority corresponding to each set of working rolls in the available roll pool, and then, combined with the maximum target width, the surface quality requirement parameters, and the machine priority corresponding to each set of working rolls, at least one set of working rolls is selected from the available roll pool for rolling the strips to be rolled corresponding to the current plan. It can be seen that the embodiment of the present application abandons the manual roll matching method in the related art, improves the roll matching accuracy and roll matching efficiency, and on this basis, can reduce the probability of quality problems caused by roll matching, improve production efficiency, fully consider the rolling process requirements, and thus ensure the quality of hot-rolled products and rolling stability.

[0082] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0083] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0084] Hot rolling is a method of producing steel, which mainly uses continuous casting slabs or initial rolling slabs as raw materials, which are heated in a walking beam heating furnace, dephosphorized by high-pressure water, and then enter the rough rolling mill. The rough rolling material is cut and then enters the finishing mill. After the final rolling, it is cooled by laminar flow and coiled by the coiler to become a straight coil. Hot rolling relies on the corresponding rollers on the rolling mill to roll the strip, and strips of different specifications may require different working rollers. Therefore, the working rollers on the rolling mill need to be configured.

[0085] Reasonable working roll configuration is crucial to ensure the quality of hot-rolled products and rolling stability. At present, working roll configuration is generally carried out manually based on experience, which requires a lot of time to screen and match the rolls to meet the requirements of the rolling process, resulting in low roll matching accuracy, which can easily lead to quality problems in the rolling process, such as dimensional deviation and surface defects. Especially when the rolling plan changes and the roll status is updated, the efficiency of manual screening and matching of rolls cannot meet the needs of rolling production, and the roll matching accuracy may be further reduced. The differences in roll matching levels and experience among different operators may lead to inconsistencies in roll matching results, which in turn affects the overall quality of the product. Therefore, how to improve the accuracy of mill roll matching is an urgent problem to be solved.

[0086] The present application embodiment provides Figure 1 A working roll matching method shown can be executed by a relevant controller of a hot rolling production line, and can be executed by a user trigger after receiving a plan sheet. The method includes steps S11 to S14.

[0087] Step S11, receiving a roll allocation instruction triggered by a user, wherein the roll allocation instruction carries a current plan;

[0088] Step S12, in response to the roll matching instruction, determining the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool; and obtaining the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled;

[0089] Step S13, determining the machine priority corresponding to each set of working rolls according to the actual number of machine operations corresponding to each set of working rolls, the actual wear amount, the actual wear width upper limit, and the maximum target width corresponding to the current plan;

[0090] Step S14, based on the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, select at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current schedule from the available roll pool.

[0091] A working roll matching method provided in an embodiment of the present application can be executed by a relevant controller of a hot rolling production line, and the embodiment of the present application does not limit this.

[0092] Regarding step S11, a roll allocation instruction triggered by a user is received, wherein the roll allocation instruction carries a current plan.

[0093] When the user receives a new plan (recorded as the current plan in the embodiment of the present application), the data contained in the plan can be transmitted to the relevant controllers of the hot rolling production line, and the generation of roll matching instructions can be triggered by a physical button or a virtual button, so that the relevant controller can match the rolls according to the current plan.

[0094] Regarding step S12, in response to the roll matching instruction, the actual number of machine operations, actual wear amount and actual wear width upper limit corresponding to each set of working rolls in the available roll pool are determined; and the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled are obtained.

[0095] The available roll pool includes a set of working rolls without dents, smooth surfaces, cracks or other defects. Each set of working rolls can be assigned a corresponding roll number for distinction.

[0096] The method for determining the actual number of machine runs corresponding to each set of working rolls in the available roll pool includes steps S1211 to S1213.

[0097] Step S1211, for each set of working rolls, obtaining the actual grinding value of the set of working rolls after the last time the working rolls were removed from the machine;

[0098] Step S1212, when the actual grinding value corresponding to the set of working rolls is greater than or equal to a preset grinding threshold, determining that the actual number of machine operations corresponding to the set of working rolls is 0;

[0099] Step S1213, when the actual grinding value corresponding to the set of working rollers is less than the preset grinding threshold, the actual number of machine operations corresponding to the set of working rollers is determined as: the number of machine operations corresponding to the last time the set of working rollers were off the machine, incremented by 1.

[0100] After each set of working rolls is removed from the machine, it will be determined whether it needs to be ground based on its surface quality or state to improve the surface quality or state of the working rolls. When a set of working rolls has not been ground since the last time it was removed from the machine, the corresponding actual grinding value is 0. When a set of working rolls has been ground since the last time it was removed from the machine, the corresponding actual grinding value is the actual grinding value.

[0101] The preset grinding threshold can be set according to the actual situation, for example, 0.06mm. The actual grinding value is compared with the preset grinding threshold. When the actual grinding value corresponding to the set of working rolls is greater than or equal to the preset grinding threshold, it means that the set of working rolls has been ground, and the surface state or quality of the working rolls after grinding will be better. Then the actual number of machine runs corresponding to the set of working rolls can be cleared, that is, it is treated as a new or newer working roll, that is, the actual number of machine runs is recorded as 0. This indicates that the wear degree of the set of working rolls may be relatively small and the quality is relatively good.

[0102] When the actual grinding value corresponding to the set of working rolls is less than the preset grinding threshold, it is artificially assumed that the grinding degree of the set of working rolls is low (or no grinding), and the corresponding actual machine times need to be added by 1 based on the machine times corresponding to the last machine down, that is, the actual machine times corresponding to the set of working rolls are determined as: the corresponding times after the machine times corresponding to the last machine down are increased by 1. This indicates that the wear degree of the set of working rolls may be relatively large and the quality is relatively poor.

[0103] The method for determining the actual wear amount corresponding to each set of working rolls in the available roll pool includes steps S1221 to S1224.

[0104] Step S1221, for each set of working rolls, matching the target widths of each strip rolled by the set of working rolls in the corresponding actual number of times with the N width intervals corresponding to the preset target widths of the strip to be rolled;

[0105] Step S1222, determining, from the N width intervals, M target width intervals with the largest number of matching strips corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M<N;

[0106] Step S1223, adding the wear amount of the set of working rolls corresponding to the M target width intervals corresponding to each rolling of the set of working rolls to obtain the wear component caused by each rolling of the set of working rolls in the actual number of times of rolling;

[0107] Step S1224, adding the wear components corresponding to each rolling of the set of working rolls in the actual number of times of machine operation to obtain the actual wear amount corresponding to the set of working rolls.

[0108] According to the product structure, N width intervals corresponding to the target width of the strip to be rolled are preset, for example, [800-850], [850-900], [900-950], [950-1000], [1000-1050], and so on.

[0109] For each set of working rolls, the target width of each batch of strip steel rolled in the actual number of machine operations is matched with each width interval. For example, if the actual number of machine operations is 3, the first batch of strip steel rolled is 20 pieces, the second batch of strip steel rolled is 40 pieces, and the third batch of strip steel rolled is 50 pieces. The corresponding relationship between the target width of each strip steel rolled and each width interval is shown in Table 1. That is, for the first batch, the target width of 2 of the 20 strip steels falls within the range of [800-850], the target width of 6 of the 20 strip steels falls within the range of [850-900], and so on.

[0110] Table 1

[0111]

[0112] From the N width intervals, determine the M target width intervals with the largest number of strip steel matches corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M < N. Continuing with Table 1 as an example, that is, N is 5, M is 3, and the three ranges with the largest number of matching combings in the first rolling are [900-950], [850-900], and [800-850], respectively.

[0113] After each strip of steel is rolled by the set of working rolls, the wear of the working rolls is measured. On this basis, the embodiment of the present application adds up the wear corresponding to the M target width intervals corresponding to each time to obtain the wear component for each time. As shown in Table 1, the wear corresponding to the three target width intervals corresponding to the first time is 0.1mm, 0.06mm, and 0.02mm, respectively. When the three are added together, the corresponding wear component is 0.18mm.

[0114] Then add up the wear components of each bet in the actual number of machine operations to get the actual wear amount. As shown in Table 1, the wear component corresponding to the first time is 0.18mm, the wear component corresponding to the second time is 0.35mm, and the wear component corresponding to the third time is 0.46mm. The sum of the three is the actual wear amount of the set of working rolls, which is 0.99mm.

[0115] On the basis of the above-mentioned steps S1221 to S1222, the method for determining the upper limit of the actual wear width corresponding to each set of working rolls in the available roll pool includes steps S1231 to S1235.

[0116] Step S1231, determining the maximum width value corresponding to each rolling of the set of working rolls in the M target width intervals in the actual number of rolling operations;

[0117] Step S1232, determining an average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of the machine operation;

[0118] Step S1233, obtaining the length of the set of working rolls;

[0119] Step S1234, subtracting the average roll shifting amount from half of the length and adding half of the maximum width value to obtain the upper limit of the wear width of the set of working rolls corresponding to each rolling in the actual number of times of the machine operation;

[0120] Step S1235, taking the maximum upper limit of the wear width of the set of working rollers corresponding to the actual number of machine operations as the actual upper limit of the wear width of the set of working rollers.

[0121] Determine the maximum width value corresponding to each rolling of the set of working rolls in the actual number of times of the machine in the M target width intervals. For example, as shown in Table 1, the first three target width intervals are [900-950], [850-900], and [800-850], respectively, where the maximum width range is [900-950], and the corresponding maximum width value is 950.

[0122] Determine the average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of the machine. For example, if the first roll shifting amount is 50mm, then the average roll shifting amount corresponding to the first time is 50mm; if the second roll shifting amount is 100mm, then the average roll shifting amount corresponding to the second time is (50+100) / 2=75mm; if the third roll shifting amount is 50mm, then the average roll shifting amount corresponding to the third time is (50+100+50) / 3=66.67mm.

[0123] Obtain the length of the set of working rolls. The length of the set of working rolls can be actually measured or directly obtained from the corresponding data.

[0124] The upper limit of the wear width corresponding to each rolling of the set of working rolls in the actual number of times of the machine is obtained by subtracting the average roll shifting amount from half of the length and adding half of the maximum width value. For reference, formula (1) can be used.

[0125]

[0126] Among them, w i is the upper limit of the wear width corresponding to the i-th time; i is the number of times, and the maximum is the actual number of times; L is the length; S i is the average roller shifting amount corresponding to the i-th time; The ranges corresponding to the three width intervals when M is 3.

[0127] The maximum upper limit of the wear width of the set of working rollers corresponding to the actual number of machine operations is taken as the actual upper limit of the wear width of the set of working rollers. For reference, formula (2) may be used.

[0128]

[0129] Among them, w is the upper limit of the actual wear width corresponding to the set of working rolls; i is the number of times, the maximum is the actual number of times; L is the length; S i is the average roller shifting amount corresponding to the i-th time; The ranges corresponding to the three width intervals when M is 3.

[0130] The actual number of machine operations, the actual wear amount, and the actual wear width upper limit determined by the above method can be stored and can be directly obtained from the storage area when the current plan is received.

[0131] Obtain the corresponding maximum target width of all the strips to be rolled in the current plan, and obtain the surface quality requirement parameters of the strips to be rolled in the current plan. The current plan refers to the plan that is about to be rolled, which contains the relevant parameters of each piece of strip to be rolled, such as the target width to be rolled. Screen all the strips to be rolled in the current plan to obtain the maximum target width to be rolled. In addition, it is also necessary to obtain the surface quality requirement parameters of the strip to be rolled in the current plan. The surface quality requirement parameters can be expressed as a percentage, such as 100% for the highest requirement and 10% for the lowest requirement. The surface quality requirement parameters can also be expressed as excellent, good, medium, and poor, and the difficulty of the quality requirements of excellent, good, medium, and poor decreases in turn.

[0132] Now continue to execute step S13.

[0133] Regarding step S13, the machine priority corresponding to each set of working rolls is determined according to the actual number of machine operations corresponding to each set of working rolls, the actual amount of wear, the actual wear width upper limit and the maximum target width corresponding to the current plan.

[0134] For each set of working rolls, when the upper limit of the actual wear width corresponding to this set of working rolls is greater than the maximum target width, the actual wear amount is less than a preset wear threshold (for example, 0.2), and the actual number of machine runs is less than or equal to the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of this set of working rolls is determined to be the first priority.

[0135] When the upper limit of the actual wear width corresponding to this set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine operations is greater than the maximum number of machine operations allowed for the corresponding steel grade in the current plan, the priority of this set of working rolls is determined to be the second priority.

[0136] When the actual wear width upper limit corresponding to the set of working rolls is greater than the maximum target width, and the actual wear amount is greater than or equal to the preset wear threshold, the priority of the set of working rolls is determined to be the third priority.

[0137] When the upper limit of the actual wear width corresponding to the set of working rolls is less than or equal to the maximum target width, the priority of the set of working rolls is determined to be the fourth priority.

[0138] The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased. For details, refer to the following formula.

[0139]

[0140] Among them, w max is the maximum target width, w is the upper limit of the actual wear width, Wear is the actual wear amount, K is the actual number of machine times, K allow The maximum number of machine runs allowed for the corresponding steel type in the current plan. 0.2 is the preset wear threshold.

[0141] Regarding step S14, based on the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current schedule is selected from the available roll pool.

[0142] First, multiple sets of working rolls that meet the width requirements in the available roll pool can be screened out according to the maximum target width (recorded as the first set of candidate working rolls); then, according to the surface quality requirement parameters, combined with the machine priority corresponding to each set of working rolls in the first set of candidate working rolls, at least one corresponding target priority is determined, and then multiple sets of working rolls that meet all target priorities are screened out from the first set of candidate working rolls (i.e., the second set of candidate working rolls). Then, any set of working rolls in the second set of candidate working rolls can be used to roll the strip corresponding to the current plan.

[0143] According to the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls whose machine priority meets the surface quality requirement parameters is selected from the available roll pool. According to the maximum target width, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan is selected from at least one set of working rolls whose machine priority meets the surface quality requirement parameters.

[0144] Specifically, the priority level of the machine priority for selecting at least one set of working rolls from the available roll pool is positively correlated with the surface quality requirement parameter corresponding to the current plan. For example, when the surface quality requirement parameter is excellent, only working rolls of the first priority can be selected; when the surface quality requirement parameter is good, working rolls of the first priority and the second priority can be selected; when the surface quality requirement parameter is medium, working rolls of the first priority, the second priority and the third priority can be selected; when the surface quality requirement parameter is poor, working rolls of the first priority, the second priority, the third priority and the fourth priority can be selected.

[0145] Further, after selecting at least one set of working rolls from the available roll pool according to the maximum target width, the surface quality requirement parameter and the machine priority corresponding to each set of working rolls for rolling the to-be-rolled strip corresponding to the current plan, the method further comprises:

[0146] A set of target working rolls is selected from at least one set of working rolls for rolling the strip steel to be rolled in the current plan sheet, and the set of target working rolls is arranged on the corresponding racks according to the matching relationship between the roll diameter and each rack, and is used to roll the strip steel to be rolled in the current plan sheet. For example, the racks for current roll replacement include racks F1, F2, F3, F4, F5, F6, and F7, and the roll diameters corresponding to each rack decrease in sequence, that is, the roll diameter corresponding to F1 is the largest, and the roll diameter corresponding to F7 is the smallest. The 7 working rolls in the set of target working rolls are arranged in racks F1, F2, F3, F4, F5, F6, and F7 in sequence according to the relationship of roll diameter from large to small, so that the working rolls match the corresponding racks and are used to roll the strip steel in the current plan sheet.

[0147] In summary, the embodiment of the present application can determine the machine priority corresponding to each set of working rolls in the available roll pool based on the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool, combined with the corresponding maximum target width of all the strips to be rolled in the current plan, and the surface quality requirement parameters of the current plan for the strips to be rolled, and then select at least one set of working rolls from the available roll pool in combination with the maximum target width, the surface quality requirement parameters, and the machine priority corresponding to each set of working rolls for rolling the strips to be rolled corresponding to the current plan. It can be seen that the embodiment of the present application abandons the manual roll matching method in the related art, improves the roll matching accuracy and roll matching efficiency, and on this basis, can reduce the probability of quality problems caused by roll matching, improve production efficiency, fully consider the rolling process requirements, and thus ensure the quality of hot-rolled products and rolling stability.

[0148] In the example production line, a working roll matching method provided in the embodiment of the present application can be used to calculate a suitable roll matching scheme and apply it on the machine, realizing the automation of hot rolling working roll matching, effectively reducing the time for manual search and screening, and improving the cross-sectional profile of the strip, wherein the roll matching efficiency is increased by more than 50%, and the plate shape defect rate is reduced by more than 10%. This method effectively reduces the time for manual search and screening, improves production efficiency, and fully considers the rolling process requirements, thereby improving the quality of hot-rolled products and ensuring the stability of rolling. This method effectively improves production efficiency, reduces production costs, improves product quality, and adapts to the needs of large-scale production through automated and intelligent roll matching technology.

[0149] Based on the same inventive concept, the present application embodiment provides the following Figure 2 A working roll matching device is shown, the device comprising:

[0150] The instruction receiving module 21 is used to receive the roll allocation instruction triggered by the user, wherein the roll allocation instruction carries the current plan;

[0151] The acquisition module 22 is used to determine the actual number of machine operations, actual wear amount and actual wear width upper limit corresponding to each set of working rolls in the available roll pool in response to the roll matching instruction; and to obtain the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled;

[0152] The priority determination module 23 is used to determine the machine priority corresponding to each set of working rolls according to the actual machine times, the actual wear amount, the actual wear width upper limit and the maximum target width corresponding to the current plan corresponding to each set of working rolls;

[0153] The working roll screening module 24 is used to screen out at least one set of working rolls for rolling the strip to be rolled corresponding to the current schedule from the available roll pool according to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls.

[0154] Furthermore, the working roll screening module 24 is also used for:

[0155] After selecting at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, a set of target working rolls is selected from at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan, and the set of target working rolls is arranged on the corresponding frames according to the matching relationship between the roll diameters and the respective frames, and is used to roll the strip to be rolled corresponding to the current plan.

[0156] Furthermore, the device also includes an actual number of machine times determination module, which is used to:

[0157] For each set of working rolls, obtain the actual grinding value of the working rolls after the last time the working rolls were removed from the machine;

[0158] When the actual grinding value corresponding to the set of working rolls is greater than or equal to a preset grinding threshold, determining that the actual number of machine operations corresponding to the set of working rolls is 0;

[0159] When the actual grinding value corresponding to the set of working rollers is less than the preset grinding threshold, the actual number of machine times corresponding to the set of working rollers is determined as: the number of times the set of working rollers are put on the machine increased by 1 based on the number of times the set of working rollers were put on the machine when they were last taken off the machine.

[0160] Furthermore, the device also includes an actual wear amount determination module, which is used to:

[0161] For each set of working rolls, matching is performed with N width intervals corresponding to the preset target widths of the strips to be rolled, according to the target widths corresponding to each strip rolled by the working rolls in the corresponding actual number of times;

[0162] From the N width intervals, determine M target width intervals with the largest number of matching strips corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M<N;

[0163] Adding the wear amount of the set of working rolls corresponding to the M target width intervals corresponding to each rolling of the set of working rolls to obtain the wear component caused by each rolling of the set of working rolls in the actual number of times of rolling;

[0164] The wear components corresponding to each rolling of the set of working rolls in the actual number of times of machine operation are added together to obtain the actual wear amount corresponding to the set of working rolls.

[0165] Furthermore, the device also includes an actual wear width upper limit determination module, which is used to:

[0166] Determine the maximum width value corresponding to each rolling of the set of working rolls in the M target width intervals in the actual number of rolling operations;

[0167] Determine the average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of the machine;

[0168] Obtain the length of the set of working rolls;

[0169] The upper limit of the wear width corresponding to each rolling of the set of working rolls in the actual number of times of the machine is obtained by subtracting the average roll shifting amount from half of the length and adding half of the maximum width value;

[0170] The maximum upper limit of the wear width of the set of working rollers corresponding to the actual number of machine operations is taken as the actual upper limit of the wear width of the set of working rollers.

[0171] Furthermore, the priority determination module 23 is used to:

[0172] For each set of working rolls, when the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is less than or equal to the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the first priority;

[0173] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is greater than the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the second priority;

[0174] When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, and the actual wear amount is greater than or equal to the preset wear threshold, determining that the priority of the set of working rolls is the third priority;

[0175] When the upper limit of the actual wear width corresponding to the set of working rolls is less than or equal to the maximum target width, determining the priority of the set of working rolls to be the fourth priority;

[0176] Among them, the priority levels of the first priority, the second priority, the third priority, and the fourth priority decrease in sequence.

[0177] Furthermore, the working roll screening module 24 is also used for:

[0178] According to the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls whose machine priority meets the surface quality requirement parameters is selected from the available roll pool;

[0179] According to the maximum target width, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan is selected from at least one set of working rolls whose priority level on the machine meets the surface quality requirement parameters.

[0180] Based on the same inventive concept, the present application embodiment provides the following Figure 3 A roller matching device shown includes:

[0181] Processor 31;

[0182] A memory 32 for storing instructions executable by the processor 31;

[0183] The processor 31 is configured to execute to implement a working roll matching method as provided above.

[0184] Based on the same inventive concept, an embodiment of the present application provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by the processor 31 of the roll matching device, the roll matching device can execute a working roll matching method as provided above.

[0185] Since the roll-matching device introduced in this embodiment is the roll-matching device used to implement the information processing method in the embodiment of this application, based on the information processing method introduced in the embodiment of this application, the technical personnel in this field can understand the specific implementation of the roll-matching device in this embodiment and its various variations, so how the roll-matching device implements the method in the embodiment of this application is not described in detail here. As long as the technical personnel in this field implement the roll-matching device used in the information processing method in the embodiment of this application, it belongs to the scope of protection of this application.

[0186] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0187] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0188] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0189] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0190] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0191] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A working roll matching method, characterized in that: The method comprises: Receiving a roll allocation instruction triggered by a user, wherein the roll allocation instruction carries a current plan; In response to the roll matching instruction, determine the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool; and obtain the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled; Determine the machine priority corresponding to each set of working rolls according to the actual number of machine runs corresponding to each set of working rolls, the actual wear amount, the upper limit of the actual wear width, and the maximum target width corresponding to the current plan; According to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current schedule is selected from the available roll pool.

2. The method according to claim 1, characterized in that After selecting at least one set of working rolls for rolling the to-be-rolled steel strip corresponding to the current schedule from the available roll pool according to the maximum target width, the surface quality requirement parameter and the machine priority corresponding to each set of working rolls, the method further includes: A set of target working rolls is selected from at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan, and the set of target working rolls is arranged on the corresponding frames according to the matching relationship between the roll diameters and the respective frames, and is used to roll the strip to be rolled corresponding to the current plan.

3. The method according to claim 1, characterized in that Determine the actual number of machine runs for each set of work rolls in the available roll pool, including: For each set of working rolls, obtain the actual grinding value of the working rolls after the last time the working rolls were removed from the machine; When the actual grinding value corresponding to the set of working rolls is greater than or equal to a preset grinding threshold, determining that the actual number of machine operations corresponding to the set of working rolls is 0; When the actual grinding value corresponding to the set of working rollers is less than the preset grinding threshold, the actual number of machine times corresponding to the set of working rollers is determined as: the number of times the set of working rollers are put on the machine increased by 1 based on the number of times the set of working rollers were put on the machine when they were last taken off the machine.

4. The method according to claim 1, characterized in that Determining the actual wear amount corresponding to each set of working rolls in the available roll pool includes: For each set of working rolls, matching is performed with N width intervals corresponding to the preset target widths of the strips to be rolled, according to the target widths of the strips rolled each time in the corresponding actual number of times of the working rolls; From the N width intervals, determine M target width intervals with the largest number of matching strips corresponding to each rolling of the set of working rolls, where M and N are both positive integers, and M<N; Adding the wear amount of the set of working rolls corresponding to the M target width intervals corresponding to each rolling of the set of working rolls to obtain the wear component caused by each rolling of the set of working rolls in the actual number of times of rolling; The wear components corresponding to each rolling of the set of working rolls in the actual number of times of machine operation are added together to obtain the actual wear amount corresponding to the set of working rolls.

5. The method according to claim 4, characterized in that The determining of the upper limit of the actual wear width corresponding to each set of working rolls in the available roll pool comprises: Determine the maximum width value corresponding to each rolling of the set of working rolls in the M target width intervals in the actual number of rolling operations; Determine the average roll shifting amount corresponding to each rolling of the set of working rolls in the actual number of times of rolling; Obtain the length of the set of working rolls; The upper limit of the wear width corresponding to each rolling of the set of working rolls in the actual number of times of the machine is obtained by subtracting the average roll shifting amount from half of the length and adding half of the maximum width value; The maximum upper limit of wear width of the set of working rolls corresponding to the actual number of machine operations is taken as the actual upper limit of wear width of the set of working rolls.

6. The method according to claim 1, characterized in that Determining the machine priority corresponding to each set of working rolls according to the actual machine times, the actual wear amount, the actual wear width upper limit and the maximum target width corresponding to the current plan sheet corresponding to each set of working rolls includes: For each set of working rolls, when the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is less than or equal to the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the first priority; When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, the actual wear amount is less than the preset wear threshold, and the actual number of machine runs is greater than the maximum number of machine runs allowed for the corresponding steel grade in the current plan, the priority of the set of working rolls is determined to be the second priority; When the upper limit of the actual wear width corresponding to the set of working rolls is greater than the maximum target width, and the actual wear amount is greater than or equal to the preset wear threshold, determining that the priority of the set of working rolls is the third priority; When the upper limit of the actual wear width corresponding to the set of working rolls is less than or equal to the maximum target width, determining the priority of the set of working rolls to be the fourth priority; Among them, the priority levels of the first priority, the second priority, the third priority, and the fourth priority decrease in sequence.

7. The method according to claim 1, characterized in that The step of selecting at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameter and the machine priority corresponding to each set of working rolls comprises: According to the surface quality requirement parameters and the machine priority corresponding to each set of working rolls, at least one set of working rolls whose machine priority meets the surface quality requirement parameters is selected from the available roll pool; According to the maximum target width, at least one set of working rolls for rolling the to-be-rolled strip corresponding to the current plan is selected from at least one set of working rolls whose priority level on the machine meets the surface quality requirement parameters.

8. A working roll matching device, characterized in that: The device comprises: An instruction receiving module, used for receiving a roll allocation instruction triggered by a user, wherein the roll allocation instruction carries a current plan; An acquisition module is used to determine the actual number of machine operations, actual wear amount, and actual wear width upper limit corresponding to each set of working rolls in the available roll pool in response to the roll matching instruction; and to obtain the corresponding maximum target width of all the strips to be rolled in the current plan and the surface quality requirement parameters for the strips to be rolled; A priority determination module, used to determine the machine priority corresponding to each set of working rolls according to the actual number of machine operations corresponding to each set of working rolls, the actual amount of wear, the upper limit of the actual wear width, and the maximum target width corresponding to the current plan; The working roll screening module is used to screen out at least one set of working rolls for rolling the strip to be rolled corresponding to the current plan from the available roll pool according to the maximum target width, the surface quality requirement parameters and the machine priority corresponding to each set of working rolls.

9. A roller matching device, characterized in that: include: processor; a memory for storing instructions executable by the processor; Wherein, the processor is configured to execute to implement a working roll matching method as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a roll matching device, the roll matching device is enabled to implement a work roll matching method according to any one of claims 1 to 7.

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