Plate shape control method and device, terminal equipment and storage medium

Abstract

The application is suitable for the technical field of plate processing, and provides a plate shape control method and device, terminal equipment and storage medium. The method comprises the following steps: obtaining production parameters of material, wherein the production parameters comprise at least one of shape, position and temperature; determining whether there is a deviation parameter, and obtaining a correction device according to the type of the deviation parameter; wherein the deviation parameter comprises the production parameter whose deviation from the production reference value in the database information is greater than a deviation threshold; obtaining a control parameter of the correction device according to the deviation of the deviation parameter; wherein the control parameter is used for controlling the correction device to correct the expected deviation of the plate shape caused by the deviation parameter. The application realizes automatic control of the phenomenon of sickle bending, and can reduce the generation of sickle bending.

Description

Technical Field

[0001] This application belongs to the field of sheet metal processing technology, and in particular relates to sheet shape control methods, devices, terminal equipment and storage media. Background Technology

[0002] Sickle bend is the most common surface quality defect in metal sheet processing and production. It increases the side damage of steel plates or strips and is also detrimental to their further processing and transportation.

[0003] Currently, camber control typically employs pressure reduction control, which involves individually adjusting the pressure reduction on either the drive side or the operating side to maintain uniform pressure reduction along the width of the slab. However, most current pressure reduction control methods are manual, requiring operators to adjust the pressure reduction screw on a specific side based on observations of the slab or rolled piece's movement to promptly eliminate camber. This method heavily relies on the operator's skill and experience, demanding high operator skill, and because adjustments are made only after camber has formed, it cannot prevent its occurrence in advance.

[0004] Therefore, there is an urgent need for a strip shape control method in hot-rolled strip production that can automatically control the camber phenomenon and reduce its occurrence. Summary of the Invention

[0005] This application provides a plate shape control method, device, terminal equipment, and storage medium, which can solve the problem that the plate shape can only be corrected after the sickle bend is generated during material processing.

[0006] In a first aspect, embodiments of this application provide a plate shape control method, including:

[0007] Obtain the production parameters of the material, wherein the production parameters include at least one of shape, position, and temperature;

[0008] If a deviation parameter is determined to exist, a correction device is obtained according to the type of the deviation parameter; wherein, the deviation parameter includes the production parameter whose deviation from the production reference value in the database information is greater than the deviation threshold;

[0009] The control parameters of the correction device are obtained based on the deviation amount of the deviation parameter; wherein, the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter.

[0010] The above method monitors the material's state during processing by acquiring its production parameters. It compares these parameters with preset production values ​​in the data to determine if deviations exceed preset thresholds. This identifies any deviations that could cause the metal sheet's shape to deviate from its expected shape during production. Correction equipment then corrects these deviations. Furthermore, by acquiring at least one of the material's shape, position, and temperature, the method detects the main factors affecting the metal sheet's shape and determines the appropriate correction equipment based on the type of deviation, thus reducing the occurrence of camber.

[0011] Meanwhile, this embodiment determines the control parameters of the correction device based on the deviation amount of the deviation parameters, and uses the processing reference values ​​in the database as a basis, which can more accurately correct the expected deviation of the plate shape caused by the deviation parameters.

[0012] In one possible implementation of the first aspect, the deviation parameter includes a temperature deviation parameter, and the correction device corresponding to the temperature deviation parameter includes a cooling device and / or a rolling device. The step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0013] The control parameters of the cooling device are obtained based on the deviation of the temperature deviation parameter; and / or,

[0014] The control parameters of the rolling equipment are obtained based on the deviation of the temperature deviation parameter.

[0015] The above method identifies the cooling equipment and / or rolling equipment as correction equipment based on the amount of deviation when the temperature deviates from the parameters. Appropriate cooling is performed by the cooling equipment, or the pressure of the rolling equipment is appropriately increased or decreased to make the temperature conform to the processing range or to correct the uneven stress inside the material, thereby avoiding camber in subsequent processing.

[0016] In one possible implementation of the first aspect, the production reference value includes a rolling temperature threshold, and the step of obtaining a correction device based on the type of the deviation parameter includes:

[0017] The temperature distribution of the material is obtained based on the temperature deviation parameter;

[0018] If the temperature of the first region is determined to be greater than the rolling temperature threshold, then the cooling device and / or the rolling device is set as the correction device; the first region is the region of the material with the lowest temperature;

[0019] Correspondingly, the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0020] Based on the temperature distribution of the material and the rolling temperature threshold, the zoned control parameters of the cooling equipment are obtained; and / or,

[0021] The reduction in rolling pressure of the rolling equipment is obtained based on the temperature distribution of the material and the rolling temperature threshold.

[0022] In the above method, the production reference value is the rolling temperature threshold. When the material reaches the rolling temperature threshold, the material can meet the processing requirements. By obtaining the material temperature distribution based on the temperature deviation parameter, and dividing the material into regions based on the material temperature distribution, temperature differences are eliminated, avoiding uneven rolling due to temperature differences in the material during subsequent rolling processes, which could ultimately lead to camber.

[0023] In one possible implementation of the first aspect, after the step of obtaining the temperature distribution of the material based on the temperature deviation parameter, the method further includes:

[0024] If the temperature of the first region is determined to be less than the rolling temperature threshold, then the cooling equipment parameter corresponding to the first region is set to zero, or the rolling equipment is set to a correction device.

[0025] The step of obtaining the control parameters of the rolling equipment based on the deviation of the temperature deviation parameter includes:

[0026] Based on the offset of the temperature deviation parameter and the rolling temperature threshold, the rolling parameters of the rolling equipment corresponding to the first region are determined, and the offset of the rolling parameters and the temperature deviation parameter are positively correlated.

[0027] The above method, when the temperature in the lowest temperature region of the material is lower than the rolling temperature threshold, shuts off the corresponding cooling equipment in the first region. Heat is then transferred from the region with a higher temperature to the first temperature region through natural heat conduction, or the first region is rolled using rolling equipment to convert mechanical energy into thermal energy, bringing it to the rolling temperature threshold. By analyzing the deviation of the temperature deviation parameter and the positive correlation between the material temperature and rolling pressure parameters, the expected deviation of the material sheet size when the temperature is too low is accurately corrected.

[0028] In one possible implementation of the first aspect, the deviation parameter includes a position deviation parameter, the production reference value includes the position of the rolling centerline, the correction device corresponding to the position deviation parameter includes side guide plates on both sides of the rolling track, and the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0029] The movement parameters of the side guide plate are determined based on the position deviation parameters of the material and the offset of the rolling center line.

[0030] The above method obtains the position information of the material, determines the deviation of the position deviation parameter based on the material's distance from the rolling center line, and adjusts the position of the material through the guide plates on both sides. This allows the material to be corrected in time when it deviates from the rolling center line, preventing the workpiece or material from deviating from the center line during the rolling process, which would lead to an imbalance of rolling forces on the material operation side and the transmission side, ultimately resulting in a sickle bend.

[0031] In one possible implementation of the first aspect, the deviation parameter includes a shape deviation parameter, the production reference value includes a target shape, the correction device corresponding to the shape deviation parameter includes a rolling mill, and the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0032] The rolling parameters of the rolling equipment are determined based on the shape deviation parameters and the target shape.

[0033] The above method determines whether there are deviation parameters by comparing the shape of the material with the target shape during the production and processing. When deviation parameters are found, the shape deviation of the material is adjusted by the rolling equipment to eliminate wedge-shaped and plate shape deviations caused by various factors. It can also promptly eliminate camber that occurs during processing, avoiding the scrapping of the produced plates due to excessive camber that cannot be eliminated in subsequent processes.

[0034] In one possible implementation of the first aspect, the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0035] Obtain the shape information of the material in each process during multiple processing steps;

[0036] The production reference value and the processing reference value are adjusted according to the shape information, wherein the processing reference value is the processing parameter when the deviation parameter does not exist.

[0037] The above method acquires the shape information of the material at each process stage and adjusts the production reference value and processing reference value based on this shape information. This ensures that when the material is processed according to the processing reference value, the shape of the resulting metal sheet is closer to the target shape. Furthermore, by adjusting the production reference value and processing reference value based on the shape information from multiple processing operations, the adjusted production reference value better reflects actual production conditions, reducing the occurrence and correction of deviation parameters.

[0038] Secondly, embodiments of this application provide a plate shape control device, including:

[0039] The acquisition module is used to acquire the production parameters of the material, wherein the production parameters include at least one of shape, position and temperature;

[0040] A determination module is used to determine if a deviation parameter exists, and then obtain a correction device based on the type of the deviation parameter; wherein, the deviation parameter includes the production parameter whose deviation from a preset value in the database information is greater than a deviation threshold;

[0041] A control module is used to obtain control parameters for the correction device based on the deviation amount of the deviation parameter; wherein the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter.

[0042] Thirdly, embodiments of this application provide a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the plate shape control method described in any one of the first aspects above.

[0043] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the board shape control method described in any one of the first aspects.

[0044] Fifthly, embodiments of this application provide a computer program product that, when run on a terminal device, causes the terminal device to execute the board shape control method described in any one of the first aspects.

[0045] It is understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the sickle-shaped curve of a metal sheet;

[0048] Figure 2 This is a schematic flowchart of the plate shape control method provided in the embodiments of this application;

[0049] Figure 3 This is a flow chart of hot-rolled strip steel production provided in the embodiments of this application;

[0050] Figure 4 This is a schematic diagram of the structure of a plate shape control system provided in one embodiment of this application;

[0051] Figure 5 This is a schematic diagram of the plate shape control device provided in the embodiments of this application;

[0052] Figure 6 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application.

[0053] Figure label:

[0054] Information collection module 401, database module 402, data calculation module 403, self-learning module 404, signal command module 405;

[0055] Acquisition module 501, determination module 502, control module 503;

[0056] Terminal device 60, processor 601, memory 602, computer program 603. Detailed Implementation

[0057] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0058] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0059] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0060] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0061] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0062] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0063] See Figure 1 Sickle bend is the most common surface quality defect in metal sheet processing and production, and it is divided into S-bend type ( Figure 1 As shown in a), C-bend ( Figure 1 As shown in b), L-shaped ( Figure 1 (As shown in c). There are many reasons for this defect. In the processing and production of metal sheets, various process parameters on site may affect the production of the sheet. For example, improper automatic control factors such as given parameters or control system, large differences in stiffness between the drive motor and the operating side frame, and shape differences in the slab in the transverse direction may all lead to sickle bending during the sheet processing.

[0064] Currently, the control of camber is usually achieved after it occurs by individually adjusting the pressing down on the drive side or operating side to maintain uniform pressing down along the width of the plate, thus eliminating the camber on the slab or rolled piece. However, eliminating camber after it has occurred requires multiple rolling or straightening processes on the slab or rolled piece, which can easily lead to metal fatigue and cause the metal sheet to be scrapped.

[0065] After numerous trial productions, it was found that although the causes of sickle bending are varied, they mainly manifest in the following three aspects: slab temperature difference, workpiece offset from the rolling center line, and workpiece wedge shape. Therefore, these three aspects can be controlled to reduce the occurrence of sickle bending in the workpiece.

[0066] Based on the above approach, please refer to the appendix to the instruction manual. Figure 2 This application proposes a plate shape control method, including:

[0067] Step S102: Obtain the production parameters of the material, wherein the production parameters include at least one of shape, position and temperature;

[0068] Step S104: If a deviation parameter is determined to exist, a correction device is obtained according to the type of the deviation parameter; wherein, the deviation parameter includes the production parameter whose deviation from the production reference value in the database information is greater than the deviation threshold;

[0069] Step S106: Obtain the control parameters of the correction device based on the deviation amount of the deviation parameter; wherein, the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter.

[0070] In this embodiment, the production parameters of the material refer to various parameters of the material itself during processing, such as the temperature of the slab, the shape of the slab or rolled piece, and the position of the rolled piece. For the processing of metal sheets, the materials mainly include metal slabs, rolled pieces, etc.

[0071] When obtaining production parameters for materials, one can acquire all production parameters at each stage of the entire processing, or one can acquire specific production parameters for different stages. (See also...) Figure 3 Taking the production of hot-rolled strip steel as an example, the instantaneous temperature value of the slab is obtained after passing through the heating furnace; the temperature of the material and the shape of the rolled piece are obtained in the fixed-width press process; the corresponding instantaneous temperature values ​​and instantaneous wedge values ​​of the slab and rolled piece are obtained before finishing rolling; in the finishing rolling process, the position of the rolled piece is measured to obtain its position on the rolling mill in real time. By obtaining different production parameters in different processes, the installation of equipment is reduced, and the implementation cost of this method is lowered.

[0072] Optionally, the production parameters of the materials can also be obtained from a database, such as the type and specifications of the metal.

[0073] Specifically, the temperature of a slab or rolled piece can be obtained using a temperature sensor, such as an infrared sensor. Optionally, when obtaining the temperature of the slab or rolled piece, the temperature acquired is the temperature corresponding to multiple regions of the material, rather than the overall temperature of the material. This is achieved by setting different detection points on the slab or rolled piece and measuring the temperature at each point. Optionally, multiple detection points can be set in the transverse direction of the material (i.e., the width direction of the slab or rolled piece) to detect the temperature of the material, obtain the transverse temperature distribution, and determine whether there is a transverse temperature difference in the material.

[0074] To obtain the shape of a slab or rolled piece, the thickness of the slab or rolled piece can be measured using a laser rangefinder, and its shape can be determined based on the thickness. Optionally, the shape parameters of the material also include the surface flatness of the material.

[0075] Material location information can be obtained through distance sensors, pressure sensors, or infrared blocking installed on the conveyor roller track. Optionally, the material location mainly includes the position of the material's center on the rolling mill, which facilitates comparison with the location production reference value in the database.

[0076] After obtaining the production parameters, they are compared with the production reference values ​​in the database. If the deviation between the obtained production parameters and the production reference values ​​is greater than the deviation threshold, a deviation parameter is identified, and the expected sheet shape caused by the deviation parameter is corrected using a correction device. Optionally, if the deviation is not greater than the deviation threshold, the sheet is processed according to the original processing reference values. For example, if the production reference value for the rolled piece in a certain process is 1040℃ and the deviation threshold is 10℃, then if the temperature of the rolled piece obtained in this process is within the range of 1030℃-1050℃, no correction is performed using the correction device. However, if the temperature of the rolled piece is outside this range, the control parameters of the correction device are determined based on the temperature deviation parameter to correct the deviation in the expected sheet shape.

[0077] The production reference value is a preset value obtained based on production experience or multiple processing runs. It serves as a standard for judging whether the processing meets expectations. When the acquired production parameters meet expectations (i.e., the deviation is no greater than the deviation threshold), the material can be processed according to the processing reference value to theoretically achieve the expected shape of the sheet. The processing reference value corresponds to the production reference value and can be determined based on experience or by adjusting the original processing reference value based on multiple processing runs.

[0078] The deviation threshold is a preset value that can be set based on experience. The deviation threshold can vary depending on the type of production parameter and the specific process. Optionally, for processes with high precision requirements, the deviation threshold can be decreased, while for processes with lower precision requirements, the deviation threshold can be increased.

[0079] Once a deviation parameter is identified, different correction devices are determined based on the type of deviation parameter. The deviation parameter is then compared with a production reference value to obtain different processing parameters. Different types of deviation parameters correspond to different types of correction devices. For example, for a temperature deviation parameter, the corresponding correction device could be a heating device; when the deviation parameter is a position, the corresponding correction device might be a guide plate or a rocking roller. By determining the corresponding correction device based on the type of deviation parameter, targeted corrections can be made based on the type or cause of the deviation parameter when it occurs.

[0080] For step S108, the expected shape deviation refers to the deviation between the expected shape of the metal sheet and the target shape of the metal sheet when processing is carried out according to the original processing reference value without correction of the deviation parameters. For the temperature deviation parameter, the main reasons for the expected shape deviation are uneven internal stress caused by uneven temperature of the slab or rolled piece, or excessively high or low temperatures preventing the sheet shape from reaching the expected value during rolling. For the position deviation parameter, the main reasons for the expected shape deviation are that the slab or rolled piece deviates from the centerline, resulting in uneven rolling forces on both sides, causing fluctuations in the strip thickness at the exit, thus forming the expected shape deviation.

[0081] The control parameters for the correction equipment are primarily calculated based on the deviation amount of the deviation parameters. For example, when a workpiece experiences a positional deviation, the corresponding control parameters for the correction equipment can be determined solely based on the positional deviation. In an optional implementation, the control parameters for the correction equipment can be obtained from database information and the deviation amount. The database information is used to obtain the correspondence or determination basis between the deviation amount and the equipment control parameters, and then the control parameters are determined based on the deviation amount and the correspondence.

[0082] In one optional implementation, the database information includes production product information, production reference values, and processing reference values. Taking the database corresponding to the production of hot-rolled strip steel as an example, its database information includes: production product information: steel grade and specifications; production reference values ​​at various points: tapping temperature; roughing rolling start temperature; intermediate billet thickness; temperature, thickness, crown, etc. of each rolling pass; processing reference values: water volume and pressure for roughing descaling; pressure and time of the fixed-width press; water volume and pressure of cooling water for R1 (reversible two-roll roughing mill) and R2 work rolls (reversible four-roll roughing mill); wear range of the rolls and the throughput of the corresponding steel grade, etc.

[0083] It is understood that the correction equipment can be equipment used in the production and processing process, such as the rolling mill used in the finishing rolling process or the cooling water equipment in the cooling process. It can also be separately added equipment, such as the side guide plates on both sides of the rolling mill. The control parameters for the correction equipment can be determined by adjusting the original processing reference value based on the deviation amount, or the correction parameters for the correction equipment can be determined separately based on the deviation amount. When the deviation amount is not greater than a preset threshold, the processing reference value can be determined as the control parameters for the correction equipment.

[0084] By designating the existing processing equipment as correction equipment during material processing and adjusting the original processing reference value according to the deviation, the control parameters of the correction equipment are obtained, reducing the installation cost of the equipment. At the same time, when processing materials, the expected deviation of the plate shape caused by the deviation parameters is corrected simultaneously, without the need to add an additional correction process.

[0085] The beneficial effects of this embodiment are as follows:

[0086] This embodiment monitors the material's state during processing by acquiring its production parameters. By comparing these parameters with preset production values ​​in the data, it determines whether deviations exceed preset thresholds. This identifies any deviations that could cause the metal sheet's shape to deviate from its expected shape during production. Correction equipment then corrects these deviations. Furthermore, by acquiring at least one of the material's shape, position, and temperature, it detects the main factors affecting the metal sheet's shape and determines the appropriate correction equipment based on the type of deviation, thus specifically correcting these deviations and reducing the occurrence of camber.

[0087] Meanwhile, this embodiment determines the control parameters of the correction device based on the deviation amount of the deviation parameters, and uses the processing reference values ​​in the database as a basis, which can more accurately correct the expected deviation of the plate shape caused by the deviation parameters.

[0088] According to the above embodiments, in yet another embodiment:

[0089] The deviation parameter includes a temperature deviation parameter, and the correction equipment corresponding to the temperature deviation parameter includes a cooling device and / or a rolling device. The step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameter includes:

[0090] The control parameters of the cooling device are obtained based on the deviation of the temperature deviation parameter; and / or,

[0091] The control parameters of the rolling equipment are obtained based on the deviation of the temperature deviation parameter.

[0092] In this embodiment, the cooling equipment corresponding to the temperature deviation parameter is a cooling device and / or a rolling device. When it is determined that a deviation parameter exists, and that the temperature deviation parameter is included, the cooling device and / or the rolling device can be identified as correction devices, and the control parameters of the cooling device and / or the rolling device can be determined respectively according to the deviation parameter.

[0093] Optionally, the cooling equipment can be a water-cooled device or an air-cooled device, or other cooling media can be selected. Optionally, when obtaining the control parameters of the cooling equipment, the cooling parameters can be determined based on the type of material, the specific heat capacity of the coolant used in the cooling equipment, and the deviation amount. The control parameters of the cooling equipment include the flow rate of the cooling medium, the valve opening of the cooling equipment, the amount of cooling medium, and the temperature of the cooling medium. Generally, when correcting the deviation of the plate shape caused by the temperature deviation parameters using the cooling equipment, the main method is to adjust the amount of cooling medium to cool the material.

[0094] Rolling equipment includes reversible two-high roughing mills and reversible four-high roughing mills. Specifically, the rolling equipment used to correct temperature deviations can be determined based on the equipment used in actual production. The control parameters of the rolling equipment include the rolling pressure and the number of rolling passes.

[0095] Optionally, when determining the control parameters of the rolling equipment, the parameters can be determined based on the diagram showing the temperature of different materials changing with the control parameters of the rolling equipment and the deviation amount.

[0096] The deviation in sheet shape caused by temperature deviation parameters is mainly due to changes in internal stress and changes in the internal microstructure of the metal. Therefore, optionally, when determining the control parameters of the cooling equipment and / or rolling equipment, adjustments can be made based on the original processing reference values ​​according to the amount of temperature deviation.

[0097] The beneficial effects of this embodiment are as follows:

[0098] This embodiment identifies the cooling equipment and / or rolling equipment as correction equipment based on the amount of deviation when the temperature deviates from the parameters. The cooling equipment is used to appropriately lower the temperature, or the rolling equipment is used to appropriately increase or decrease the pressure, so that the temperature is within the processing range or the uneven stress inside the material is corrected, thus avoiding camber in subsequent processing.

[0099] According to the above embodiments, in yet another embodiment:

[0100] The production reference value includes a rolling temperature threshold, and the step of obtaining the correction equipment based on the type of the deviation parameter includes:

[0101] The temperature distribution of the material is obtained based on the temperature deviation parameter;

[0102] If the temperature of the first region is determined to be greater than the rolling temperature threshold, then the cooling device and / or the rolling device is set as the correction device; the first region is the region of the material with the lowest temperature;

[0103] Correspondingly, the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0104] Based on the temperature distribution of the material and the rolling temperature threshold, the zoned control parameters of the cooling equipment are obtained; and / or,

[0105] The reduction in rolling pressure of the rolling equipment is obtained based on the temperature distribution of the material and the rolling temperature threshold.

[0106] In an optional implementation, after the step of obtaining the temperature distribution of the material based on the temperature deviation parameter, the method further includes:

[0107] If the temperature of the first region is determined to be less than the rolling temperature threshold, then the cooling equipment parameter corresponding to the first region is set to zero, or the rolling equipment is set to a correction device.

[0108] The step of obtaining the control parameters of the rolling equipment based on the deviation of the temperature deviation parameter includes:

[0109] Based on the offset of the temperature deviation parameter and the rolling temperature threshold, the rolling parameters of the rolling equipment corresponding to the first region are determined, and the offset of the rolling parameters and the temperature deviation parameter are positively correlated.

[0110] In this embodiment, the rolling temperature threshold refers to the processing temperature required for the rolling process. For hot-rolled strip steel processing, the rolling temperature threshold can be the recrystallization temperature. Obtaining the material's temperature distribution based on the temperature deviation parameter means determining the temperature values ​​of different regions on the material by acquiring the temperatures of multiple detection points on the material. Optionally, the material's temperature distribution refers to the lateral temperature distribution of the material.

[0111] If there is a difference in transverse heating during the rolling process, it will cause uneven force on the material transmission side and the operating side, eventually resulting in a sickle bend. In this embodiment, the temperature distribution of the material is obtained, and the cooling equipment and / or rolling equipment are controlled or corrected in different areas according to the temperature distribution of the material.

[0112] The generation of temperature differences mainly includes the following three aspects:

[0113] 1. When hot-rolled slabs are heated in a heating furnace, there is a difference in transverse heating, which causes a temperature deviation between the slab's transmission side and the operating side, ultimately resulting in a temperature difference.

[0114] 2. During the rolling process, if the cooling system is distributed differently on both sides of the slab, it will also cause a temperature difference between the drive side and the operating side of the roll itself.

[0115] 3. During the production process, if the scraper of the working roller leaks water, it will also cause a temperature difference between the two sides of the slab.

[0116] Therefore, the temperature of different regions of the material can be obtained during the above process.

[0117] To determine the first region, the region with the lowest temperature is identified based on the temperature distribution across different areas of the material.

[0118] Based on the material's deviation parameters and temperature distribution, the material is divided into regions, and the region with the lowest temperature is designated as the first region. If a temperature deviation parameter is determined, but the material temperature is uniform, the entire material can be considered as the first region.

[0119] Optionally, the material can be divided into multiple zones based on its temperature distribution. Alternatively, the material can be divided into high-temperature and low-temperature zones based on the location of the rolling centerline, with the average temperature of the high-temperature zone being higher than the average temperature of the low-temperature zone (i.e., the first zone).

[0120] When the temperature in the first zone is greater than the rolling temperature threshold, the control parameters of the cooling equipment corresponding to different zones can be determined based on the temperature deviation parameters of multiple zones on the material. The cooling equipment is then used to cool the slab to bring it to the reference processing value.

[0121] Optionally, when the temperature in the first region exceeds the rolling temperature threshold, the plastic deformation can be appropriately reduced by decreasing the rolling parameters of the rolling equipment corresponding to different regions. Optionally, when the temperature in the first region exceeds the preset threshold, it is preferable to cool the slab or rolled piece using a cooling device to bring it to the processing reference value. However, when the temperature in the first region is high, in addition to cooling the slab or rolled piece using a cooling device, the rolling parameters of the rolling equipment in the rolling process should also be appropriately reduced.

[0122] When the material temperature is higher than the production temperature reference value, adjustments can be made based on the processing reference value (the design rolling force in the comparative examples and embodiments below), and this value can be determined as the control parameter. When the material temperature is higher than the production temperature reference value, the control parameters of the rolling equipment should be increased; conversely, they should be decreased accordingly. Different types of metals have different rolling temperature thresholds. For different steel grades, even with the same deviation, the control parameters of the cooling equipment and the rolling parameters of the rolling equipment will also be different.

[0123] Comparative example:

[0124]

[0125] Example:

[0126]

[0127] Referring to the comparative examples and embodiments above, when the actual temperature of the slab or rolled piece is less than the temperature production reference value, the rolling force of its rolling equipment is increased; conversely, when the actual temperature of the slab or rolled piece is greater than the temperature production reference value, the rolling force of its rolling equipment is decreased, and the shape of the slab or rolled piece is modified to a certain extent to meet the wedge requirements of production.

[0128] Furthermore, as can be seen from the above comparative examples and embodiments, different steel grades have different temperature reference values. For different steel grades, such as NM400 and SWB800, even if the temperature reference values ​​and temperature deviation parameters are the same, the rolling parameters of their rolling equipment are different, and the final correction effect is also different.

[0129] Optionally, when the temperature of the metal slab is too high, and the system determines that the deviation caused by the above-mentioned deviation cannot be corrected by the cooling equipment and the rolling equipment, the system can issue an alarm for the cause of the deviation parameter, remind the staff in the relevant position to issue an alarm, investigate the cause of the accident, and ensure the smooth operation of subsequent production.

[0130] In one optional implementation, when the temperature of the first region of the material is lower than the rolling temperature threshold, while the temperature of other regions is higher than the rolling temperature threshold, the control parameter corresponding to the cooling device for the first region is set to zero. Through natural heat conduction, the temperature of the high-temperature region is naturally conducted to the low-temperature region, causing the temperature of the low-temperature region to rise. At this time, if the temperature of the high-temperature region is too high, it can be cooled using a cooling device. If the temperature of the high-temperature region is too low, the control parameter of the cooling device corresponding to the high-temperature region is also set to zero. Furthermore, if it is determined that the temperature of the low-temperature region cannot reach the preset threshold through natural heat conduction alone, the rolling pressure is increased, or the number of rolling passes is increased, to convert mechanical energy into heat energy, thereby raising the temperature of the metal slab.

[0131] When the temperature of the material in the first zone is lower than the rolling temperature threshold, and the temperature in other zones is also lower than the rolling temperature threshold, the rolling parameters of the rolling equipment corresponding to each zone are determined according to the temperature of each zone.

[0132] The deviations of the rolling parameters and temperature deviation parameters of the rolling equipment are positively correlated. Specifically, the relationship between them can be determined based on the temperature and rolling pressure changes of the material in the database. Optionally, when determining the rolling parameters of the rolling equipment, the material temperature, rolling pressure, and the shape of the rolled sheet can also be obtained from multiple processing and production processes stored in the database.

[0133] The beneficial effects of this embodiment are as follows:

[0134] In this embodiment, the rolling temperature threshold is set as a production reference value to determine whether the material meets the processing requirements of the rolling process. By obtaining the material temperature distribution based on the temperature deviation parameter, and dividing the material into regions based on the temperature distribution, the temperature difference is eliminated, avoiding uneven rolling due to temperature differences in the material during subsequent rolling processes, which could ultimately lead to a camber.

[0135] Meanwhile, in this embodiment, when the temperature in the first region is higher than the rolling temperature threshold, the cooling parameters of the cooling equipment are increased and / or the rolling parameters of the rolling equipment are reduced. When the temperature in the first region is lower than the rolling temperature threshold, the temperature of the material is increased by converting mechanical energy into heat energy through natural heat conduction and / or increasing rolling pressure, so that the material can reach the processing temperature of the rolling process.

[0136] According to the above embodiments, in yet another embodiment:

[0137] The deviation parameters include position deviation parameters, the production reference value includes the position of the rolling centerline, the correction equipment corresponding to the position deviation parameters includes side guide plates on both sides of the rolling track, and the step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameters includes:

[0138] The movement parameters of the side guide plate are determined based on the position deviation parameters of the material and the offset of the rolling center line.

[0139] If the slab or rolled piece deviates from the centerline, it will cause uneven rolling force on both sides, resulting in fluctuations in the material's exit thickness and forming a sickle-shaped bend.

[0140] The beneficial effects of this embodiment are as follows:

[0141] This embodiment obtains the position information of the material, determines the deviation of the position deviation parameter based on the material's distance from the rolling center line, and adjusts the position of the material through the side guide plates on both sides. This allows the material to be corrected in time when it deviates from the rolling center line, preventing the workpiece or material from deviating from the center line during the rolling process, which would lead to an imbalance of rolling forces on the material operation side and the transmission side, ultimately resulting in a sickle bend.

[0142] In an alternative implementation, material position deviation can also be corrected by using a swing roller control. The swing roller is positioned appropriately within the unit and controlled by a hydraulic servo system with photoelectric edge detection. The control method for the swing roller is as follows:

[0143] 1. Adjustment of lateral displacement of the control roller. When the control roller receives a control signal to adjust its lateral displacement, the strip will move laterally accordingly until the strip exit trajectory remains unchanged.

[0144] 2. Control roll swing angle adjustment. One end of the control roll is a fulcrum, and the other end is adjusted by a hydraulic cylinder to adjust the swing angle of the roll, thereby forcing the running strip to move laterally on the roll until the strip is at a position of 90° with the roll axis.

[0145] 3. The control roller is simultaneously adjusted for axial movement and oscillation. Driven by a hydraulic cylinder, the control roller exhibits both lateral displacement and angular change. During adjustment, first adjust the roller to move laterally, then increase the roller angle until it is perpendicular to the direction of strip movement.

[0146] Once the deviation parameters are determined, the slab or rolled piece can be brought back to the centerline position by controlling the oscillating rollers.

[0147] According to the above embodiments, in yet another embodiment:

[0148] The deviation parameter includes a shape deviation parameter, the production reference value includes a target shape, the correction equipment corresponding to the shape deviation parameter includes a rolling mill, and the step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameter includes:

[0149] The rolling parameters of the rolling equipment are determined based on the shape deviation parameters and the target shape.

[0150] In this embodiment, the target shape includes the target shape of the material during each processing step and the final target shape of the product, both stored in a database. The shape deviation parameters include wedge amount, which can be calculated by measuring the thickness of the material. Based on the wedge amount of the slab or rolled product, the rolling parameters of the rolling equipment are calculated.

[0151] In one optional implementation, if a wedge value is determined to occur in the material during production and processing, the parameters on the operation and equipment sides are checked according to the process in which the wedge value appears, or if the incoming material has a wedge shape, the cause is automatically found, the process that caused the wedge value is identified, and the system parameters of the aforementioned process are adjusted. Optionally, if a wedge value greater than a deviation threshold occurs multiple times in a specified process, an alarm is triggered.

[0152] The beneficial effects of this embodiment are as follows:

[0153] This embodiment determines whether there are deviation parameters by comparing the shape of the material with the target shape during the production and processing. When deviation parameters exist, the shape deviation of the material is adjusted by the rolling equipment to eliminate wedge-shaped and plate shape deviations caused by various factors. It can also promptly eliminate camber that occurs during processing, avoiding the scrapping of the produced plate due to excessive camber in subsequent processes.

[0154] According to the above embodiments, in yet another embodiment:

[0155] The step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes:

[0156] Obtain the shape information of the material in each process during multiple processing steps;

[0157] The production reference value and the processing reference value are adjusted according to the shape information, wherein the processing reference value is the processing parameter when the deviation parameter does not exist.

[0158] In this embodiment, the shape information of the material refers to the shape of the metal after processing through multiple processes, including length, width, height, and surface flatness. Optionally, the flatness measurement mainly focuses on the flatness of the material's edge within 40cm (25-45).

[0159] When adjusting system parameters, the processing reference values ​​are adjusted based on the processing parameters of multiple production processes and the shape of the material obtained under those processing parameters. This process determines the corresponding production reference values. The adjusted processing reference values ​​and production reference values ​​are then used as the basis for production and processing in the next processing cycle.

[0160] In one optional implementation, the processing parameters of the n production processes that yield the best surface flatness and are closest to the target shape during multiple production processes can be used as processing reference values, and the corresponding production parameters can be used as production reference values.

[0161] The beneficial effects of this embodiment are as follows:

[0162] This embodiment acquires the shape information of the material at each process stage and adjusts the production reference value and processing reference value based on the material's shape information. This ensures that when the material is processed according to the processing reference value, the shape of the resulting metal sheet is closer to the target shape. Furthermore, by adjusting the production reference value and processing reference value based on the shape information from multiple processing steps, the adjusted production reference value better reflects actual production conditions, reducing the occurrence and correction of deviation parameters.

[0163] In an optional implementation, see the appendix to the specification. Figure 4 The plate shape control method provided in this embodiment can be implemented based on a plate shape control system, which includes an information collection module 401, a database module 402, a data calculation module 403, a self-learning module 404, and a signal command module 405. The information collection module 401 is used to acquire the production parameters of the material, and the database module 402 is used to store database information. The data calculation module 403 is used to determine whether there are deviation parameters based on the production parameters of the material collected by the information collection module 401 and the production reference values ​​in the database information, and to calculate the control parameters of the correction equipment based on the deviation amount of the deviation parameters. Alternatively, the control parameters of the correction equipment can be calculated based on the offset, the corresponding processing reference value of the correction equipment, and the correspondence between the control parameters of the correction equipment and the offset amount in the database information.

[0164] The signal command module 405 can control the production line to process materials based on the calculated control parameters of the correction equipment and the processing reference values. The self-learning module 404 is used to adjust the production reference values ​​and processing reference values ​​based on the shape information of the material in each process during multiple processing steps obtained by the information collection module 401.

[0165] Optionally, the above-mentioned strip shape control system also includes an alarm module. When the deviation parameters significantly deviate from the normal range or the equipment malfunctions, the alarm module will classify and issue alarms for designated areas based on the situation. For example, if the wedge shape of the steel billet is too large (generally exceeding 50mm), it is considered a substandard steel billet and production cannot continue, triggering an alarm to avoid processing substandard steel billets and wasting production time. Or, if water leakage occurs in the work roll scraper during the rolling process, to prevent various quality defects caused by uneven temperature on both sides of the strip, the alarm module will issue an alarm for that area. When severe wear of the rolls or uneven wear at both ends exceeding the standard range is detected, the alarm module will issue an alarm warning.

[0166] Optionally, the alarm module can analyze the deviation parameters and process parameters during the processing, automatically find the cause, and automatically correct the corresponding process parameters through the data calculation module 403.

[0167] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0168] Corresponding to the plate shape control method described in the above embodiments, Figure 5 A structural block diagram of the device provided in the embodiments of this application is shown. For ease of explanation, only the parts related to the embodiments of this application are shown.

[0169] Reference Figure 5 The device includes:

[0170] The acquisition module 501 is used to acquire the production parameters of the material, the production parameters including at least one of shape, position and temperature;

[0171] The determining module 502 is used to determine that there are deviation parameters, and then obtain a correction device according to the type of the deviation parameters; wherein, the deviation parameters include production parameters whose deviation from a preset value in the database information is greater than a deviation threshold;

[0172] The control module 503 is used to obtain control parameters of the correction device based on the deviation amount of the deviation parameter; wherein the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter.

[0173] In an optional implementation, the deviation parameter includes a temperature deviation parameter, and the correction device corresponding to the temperature deviation parameter includes a cooling device and / or a rolling device. The control module 503 includes:

[0174] The cooling submodule is used to obtain the control parameters of the cooling device based on the deviation of the temperature deviation parameter; and / or,

[0175] The rolling submodule is used to obtain the control parameters of the rolling equipment based on the deviation of the temperature deviation parameter.

[0176] Furthermore, the production reference value includes a rolling temperature threshold, and the determining module 502 includes:

[0177] A temperature distribution unit is used to obtain the temperature distribution of the material based on the temperature deviation parameter.

[0178] A high-temperature equipment determination unit is used to determine that if the temperature of the first region is greater than the rolling temperature threshold, then the cooling equipment and / or the rolling equipment is set as the correction equipment; the first region is the region of the material with the lowest temperature;

[0179] Correspondingly, the cooling submodule includes:

[0180] The zoned cooling unit is used to obtain the zoned control parameters of the cooling equipment based on the temperature distribution of the material and the rolling temperature threshold; and / or,

[0181] The rolling submodule includes:

[0182] The pressure reduction unit is used to obtain the amount of reduction in rolling pressure of the rolling equipment based on the temperature distribution of the material and the rolling temperature threshold.

[0183] Furthermore, the determining module 502 also includes:

[0184] A low-temperature equipment determination unit is used to determine that if the temperature of the first region is less than the rolling temperature threshold, the cooling equipment parameter corresponding to the first region is set to zero, or the rolling equipment is determined to be a correction device.

[0185] The rolling submodule also includes:

[0186] The rolling parameter determination unit is used to determine the rolling parameters of the rolling equipment corresponding to the first region based on the offset of the temperature deviation parameter and the rolling temperature threshold, wherein the rolling parameters and the offset of the temperature deviation parameter are positively correlated.

[0187] In an optional implementation, the deviation parameter includes a position deviation parameter, the production reference value includes the location of the rolling centerline, the correction device corresponding to the position deviation parameter includes side guide plates on both sides of the rolling track, and the control module 503 includes:

[0188] The position deviation submodule is used to determine the movement parameters of the side guide plate based on the position deviation parameters of the material and the offset of the rolling center line.

[0189] In an optional implementation, the deviation parameter includes a shape deviation parameter, the production reference value includes a target shape, the correction equipment corresponding to the shape deviation parameter includes a rolling mill, and the control module 503 includes:

[0190] The shape deviation submodule is used to determine the rolling parameters of the rolling equipment based on the shape deviation parameters and the target shape.

[0191] In an optional implementation, the plate shape control device provided in this embodiment further includes:

[0192] The shape information acquisition module is used to acquire the shape information of the material in each process during multiple processing steps;

[0193] The reference value adjustment module is used to adjust the production reference value and the processing reference value according to the shape information, wherein the processing reference value is the processing parameter when the deviation parameter does not exist.

[0194] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0195] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0196] This application also provides a terminal device, such as... Figure 6 As shown, the terminal device 60 includes: at least one processor 601, a memory 602, and a computer program 603 stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in any of the above-described method embodiments.

[0197] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0198] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the above-described method embodiments.

[0199] If the integrated unit is implemented as 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, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0200] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0201] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0202] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0203] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0204] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A plate shape control method, characterized in that, include: Obtain the production parameters of the material, wherein the production parameters include at least one of shape, position, and temperature; If a deviation parameter is determined to exist, a correction device is obtained according to the type of the deviation parameter; wherein, the deviation parameter includes the production parameter whose deviation from the production reference value in the database information is greater than the deviation threshold; The control parameters of the correction device are obtained based on the deviation amount of the deviation parameter; wherein, the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter; The deviation parameter includes a temperature deviation parameter, and the correction equipment corresponding to the temperature deviation parameter includes a cooling device and a rolling device. The step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameter includes: The control parameters of the cooling device are obtained based on the deviation of the temperature deviation parameter. The control parameters of the rolling equipment are obtained based on the deviation of the temperature deviation parameter. The production reference value includes a rolling temperature threshold, and the step of obtaining the correction equipment based on the type of the deviation parameter includes: The temperature distribution of the material is obtained based on the temperature deviation parameter; If the temperature in the first region is determined to be greater than the rolling temperature threshold, then the cooling device and the rolling device are set as the correction device; the first region is the region of the material with the lowest temperature; Correspondingly, the step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes: Based on the temperature distribution of the material and the rolling temperature threshold, the zone control parameters of the cooling equipment are obtained; The reduction in rolling pressure of the rolling equipment is obtained based on the temperature distribution of the material and the rolling temperature threshold. After the step of obtaining the temperature distribution of the material based on the temperature deviation parameter, the method further includes: If the temperature of the first region is determined to be less than the rolling temperature threshold, then the cooling equipment parameter corresponding to the first region is set to zero, or the rolling equipment is set to a correction device. The step of obtaining the control parameters of the rolling equipment based on the deviation of the temperature deviation parameter includes: Based on the deviation of the temperature deviation parameter and the rolling temperature threshold, the rolling parameters of the rolling equipment corresponding to the first region are determined, and the deviation of the rolling parameters and the temperature deviation parameter are positively correlated.

2. The plate shape control method according to claim 1, characterized in that, The deviation parameters include position deviation parameters, the production reference value includes the position of the rolling centerline, the correction equipment corresponding to the position deviation parameters includes side guide plates on both sides of the rolling track, and the step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameters includes: The movement parameters of the side guide plate are determined based on the position deviation parameters of the material and the deviation of the rolling center line.

3. The plate shape control method according to claim 1, characterized in that, The deviation parameter includes a shape deviation parameter, the production reference value includes a target shape, the correction equipment corresponding to the shape deviation parameter includes a rolling mill, and the step of obtaining the control parameters of the correction equipment based on the deviation amount of the deviation parameter includes: The rolling parameters of the rolling equipment are determined based on the shape deviation parameters and the target shape.

4. The plate shape control method according to claim 1, characterized in that, The step of obtaining the control parameters of the correction device based on the deviation amount of the deviation parameter includes: Obtain the shape information of the material in each process during multiple processing steps; The production reference value and the processing reference value are adjusted according to the shape information, wherein the processing reference value is the processing parameter when the deviation parameter does not exist.

5. A plate shape control device, characterized in that, include: The acquisition module is used to acquire the production parameters of the material, wherein the production parameters include at least one of shape, position and temperature; A determination module is used to determine if a deviation parameter exists, and then obtain a correction device based on the type of the deviation parameter; wherein, the deviation parameter includes production parameters whose deviation from the production reference value in the database information is greater than a deviation threshold; A control module is configured to obtain control parameters for the correction device based on the deviation amount of the deviation parameter; wherein the control parameters are used to control the correction device to correct the expected deviation of the plate shape caused by the deviation parameter; The deviation parameters include temperature deviation parameters, and the correction equipment corresponding to the temperature deviation parameters includes cooling equipment and rolling equipment. The control module includes: The cooling submodule is used to obtain the control parameters of the cooling device based on the deviation of the temperature deviation parameter. The rolling submodule is used to obtain the control parameters of the rolling equipment based on the deviation of the temperature deviation parameter; The production reference value includes a rolling temperature threshold, and the determining module includes: A temperature distribution unit is used to obtain the temperature distribution of the material based on the temperature deviation parameter. A high-temperature equipment determination unit is used to determine that if the temperature of the first region is greater than the rolling temperature threshold, then the cooling equipment and the rolling equipment are set as the correction equipment; the first region is the region of the material with the lowest temperature; Correspondingly, the cooling submodule includes: The zoned cooling unit is used to obtain the zoned control parameters of the cooling equipment based on the temperature distribution of the material and the rolling temperature threshold. The rolling sub-module includes: The pressure reduction unit is used to obtain the amount of reduction in rolling pressure of the rolling equipment based on the temperature distribution of the material and the rolling temperature threshold. The determining module further includes: The low-temperature equipment determination unit is used to determine that if the temperature of the first region is less than the rolling temperature threshold, the cooling equipment parameter corresponding to the first region is set to zero, or the rolling equipment is determined to be a correction equipment. The rolling submodule also includes: The rolling parameter determination unit is used to determine the rolling parameters of the rolling equipment corresponding to the first region based on the deviation of the temperature deviation parameter and the rolling temperature threshold, wherein the deviation of the rolling parameters and the temperature deviation parameter are positively correlated.

6. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 4.

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