Roller shape determination method, device, equipment and storage medium

Abstract

The embodiments of the present invention provide a roller shape determination method, device, equipment and storage medium. Based on the process requirements of the target steel strip, a roller shape is selected from a plurality of preset roller shapes as the initial roller shape, and then a reduced-convex roller shape is determined based on the initial roller shape. Based on the width information of the target steel strip, a reduced-convex range is determined on the initial roller shape. By integrating the reduced-convex roller shape within the reduced-convex range, the target roller shape can be obtained. Finally, using the target roller shape, the target rolling roller can be prepared or selected. Since the target rolling roller has both a positive-convex roller shape and a negative-convex roller shape, when rolling strips of various widths, the convexity of strips of different widths can be better controlled, avoiding a single strip shape, and enabling the rolling production line to perform diversified rolling production.

Description

Technical Field

[0001] The present invention relates to the field of rolling technology, and in particular to a roll shape determination method, device, equipment and storage medium. Background Art

[0002] Traditional hot rolling mills typically use two- or four-high mills. These mills lack plate shape adjustment features such as roll shifting and bending, and shape control relies primarily on the initial roll profile. The roughing work roll profile typically uses a parabola or sinusoidal curve, which lacks the ability to control the transverse profile.

[0003] In actual production, when rolling a certain width of strip, the mill may need to produce a concave profile to minimize the crown of the intermediate bar, thereby increasing rolling stability. To achieve a negative crown gap when rolling narrow strip, and a positive crown gap when the strip width increases, the roughing roll profile needs to be adjusted accordingly.

[0004] As the requirements for convexity control of strip steel slabs become increasingly stringent, traditional roller shapes can no longer meet the current or future requirements of production lines in terms of convexity control. Summary of the Invention

[0005] The embodiments of the present invention solve the technical problem of instability in the crown control of the current rolling roll shape by providing a roll shape determination method, device, equipment and storage medium.

[0006] In the first aspect, the present invention provides a roller shape determination method through an embodiment of the present invention, which is applied to a rolling roller, wherein the rolling roller is used to roll a target strip steel, and the method comprises: based on the process requirements of the target strip steel, selecting a roller shape from a plurality of preset roller shapes as an initial roller shape; wherein the plurality of preset roller shapes are set for the axial section of the rolling roller; determining a reduced convexity roller shape according to the initial roller shape; based on the width information of the target strip steel, determining a reduced convexity interval on the initial roller shape, and fusing the reduced convexity roller shape within the reduced convexity interval to obtain a target roller shape.

[0007] Optionally, after determining the reduced convexity interval on the initial roll shape, the method further includes: determining a first horizontal coordinate parameter of the reduced convexity interval along the axial direction of the rolling roll.

[0008] Optionally, the fusion of the reduced convexity roller shape within the reduced convexity interval to obtain a target roller shape includes: parameterizing the initial roller shape and the reduced convexity roller shape to obtain a parameterized initial roller shape and a parameterized reduced convexity roller shape; fusing the parameterized initial roller shape with the parameterized reduced convexity roller shape within the reduced convexity interval to obtain a parameterized target roller shape; and obtaining the target roller shape based on the parameterized target roller shape.

[0009] Optionally, the parameterized processing of the initial roller shape and the reduced convex roller shape includes: determining the second horizontal coordinate parameter of the initial roller shape along the axial direction of the rolling roller, and determining the second vertical coordinate parameter of the initial roller shape along the radial direction of the rolling roller; determining the third horizontal coordinate parameter of the reduced convex roller shape along the axial direction of the rolling roller, and determining the third vertical coordinate parameter of the reduced convex roller shape along the radial direction of the rolling roller.

[0010] Optionally, within the reduced convexity interval, the parameterized initial roller shape and the parameterized reduced convexity roller shape are fused, including: within the reduced convexity interval, the second horizontal coordinate parameter, the second vertical coordinate parameter, the third horizontal coordinate parameter and the third vertical coordinate parameter are fused to obtain the parameterized target roller shape.

[0011] Optionally, the fusion of the second horizontal coordinate parameter, the second vertical coordinate parameter, the third horizontal coordinate parameter and the third vertical coordinate parameter includes: selecting a first target horizontal coordinate parameter corresponding to the first horizontal coordinate parameter from the second horizontal coordinate parameter, and selecting a first target vertical coordinate parameter corresponding to the first target horizontal coordinate parameter from the second vertical coordinate parameter; selecting a second target horizontal coordinate parameter corresponding to the first horizontal coordinate parameter from the third horizontal coordinate parameter, and selecting a second target vertical coordinate parameter corresponding to the second target horizontal coordinate parameter from the third vertical coordinate parameter; and obtaining the parameterized target roller shape based on the sum or difference of the first target vertical coordinate parameter and the second target vertical coordinate parameter.

[0012] In a second aspect, the present invention provides a roll shape determination device according to an embodiment of the present invention, which is applied to a rolling roll, wherein the rolling roll is used to roll a target steel strip, and the device comprises:

[0013] a roll shape selection unit, configured to select a roll shape from a plurality of preset roll shapes as an initial roll shape based on the process requirements of the target steel strip; wherein the plurality of preset roll shapes are set for the axial section of the rolling roll;

[0014] The roller shape selection unit is further configured to determine a reduced-crown roller shape based on the initial roller shape;

[0015] A roll shape synthesis unit is used to determine a reduced crown interval on the initial roll shape based on the width information of the target strip steel, and to fuse the reduced crown roll shape within the reduced crown interval to obtain a target roll shape.

[0016] Optionally, the roller shape synthesis unit is specifically used to: perform parameterized processing on the initial roller shape and the reduced convexity roller shape to obtain a parameterized initial roller shape and a parameterized reduced convexity roller shape; within the reduced convexity range, fuse the parameterized initial roller shape and the parameterized reduced convexity roller shape to obtain a parameterized target roller shape; and obtain the target roller shape based on the parameterized target roller shape.

[0017] In a third aspect, the present invention provides a roller shape determination device through an embodiment of the present invention, comprising a memory, a processor, and a code stored in the memory and executable on the processor, wherein when the processor executes the code, any one of the implementations in the first aspect is implemented.

[0018] In a fourth aspect, the present invention provides a computer-readable storage medium through an embodiment of the present invention, on which a computer program is stored, and when the computer program is executed by a processor, any implementation method of the first aspect is implemented.

[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0020] First, based on the process requirements of the target steel strip, a roll shape is selected from a variety of preset roll shapes as the initial roll shape. These preset roll shapes are all set for the axial cross-section of the rolling roll. After the initial roll shape is determined, a reduced-crown roll shape can be determined based on the initial roll shape. Next, based on the width information of the target steel strip, a reduced-crown interval is determined for the initial roll shape. By integrating the reduced-crown roll shape within the reduced-crown interval, the target roll shape can be obtained. Finally, the target roll shape can be used to prepare or select the target rolling roll. Because the target rolling roll has both positive and negative crown roll shapes, it can better control the crown of strips of different widths when rolling strips of various widths, avoiding a single strip shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to 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 paying any creative work.

[0022] Figure 1 is a flow chart of a method for determining a roller shape in an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the convergence of various preset roll crowns along the axial direction of the rolling roll in an embodiment of the present invention;

[0024] Figure 3Schematic diagram of the changes of various preset roll crowns along the axial direction of the rolling roll in an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the convexity convergence between the target roll shape and the quadratic curve roll shape in one implementation of an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the convexity change between the target roll shape and the quaternary curve roll shape in one embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the convexity convergence between the target roll shape and the quadratic curve roll shape in another implementation manner of an embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the convexity change between the target roll shape and the quaternary curve roll shape in another embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the structure of the roller shape determining device in an embodiment of the present invention;

[0030] Figure 9 A schematic diagram of the structure of a roller shape determination device in an embodiment of the present invention;

[0031] Figure 10 Schematic diagram of a computer-readable storage medium structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The embodiments of the present invention solve the technical problem of instability in the crown control of the current rolling roll shape by providing a roll shape determination method, device, equipment and storage medium.

[0033] The technical solution provided by the embodiments of the present invention is to solve the above technical problems, and the overall idea is as follows:

[0034] Based on the process requirements of the target steel strip, a roll profile is selected from a variety of preset roll profiles as the initial roll profile. These preset roll profiles are all set for the axial cross-section of the rolling roll. After the initial roll profile is determined, a reduced crown roll profile can be determined based on the initial roll profile. Next, based on the width information of the target steel strip, a reduced crown interval is determined for the initial roll profile. The target roll profile is obtained by integrating the reduced crown roll profile within the reduced crown interval. Finally, using the target roll profile, a target rolling roll can be prepared or selected, such that the target rolling roll has both positive and negative crown profiles.

[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0037] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0038] Because the rolling rolls in two-high or four-high mills lack shape adjustment features such as roll shifting and bending, shape control relies primarily on initial roll profile. Consequently, current rolling rolls lack the ability to achieve negative crown when rolling narrow strips and positive crown as the strip width increases.

[0039] In a first aspect, the present invention provides a roll shape determination method according to an embodiment of the present invention, which is applied to a rolling roll, wherein the rolling roll is used to roll a target strip. Figure 1 As shown, the above roller shape determination method may include the following steps:

[0040] Step S101: Based on the process requirements of the target steel strip, a roll shape is selected from a plurality of preset roll shapes as an initial roll shape.

[0041] The various preset roll shapes are configured for the axial cross-section of the rolling rolls. Specifically, these preset roll shapes may vary depending on the target strip steel being rolled by the rolling rolls, and can be configured based on the rolling process requirements of each rolling line.

[0042] The roll crown design range can be -1mm to 1mm. Generally, to improve the self-stability of the rolling area, a concave curve with a crown range of -0.1mm to -1mm can be selected as the preset roll shape. For individual rolling lines, a convex curve with a crown range of 0mm to 1mm can also be selected as the preset roll shape.

[0043] It should be noted that the crown of the rolling roll is nominally based on the length of the rolling roll. For example, a rolling roll crown of -0.1mm indicates that when the strip rolling width is equal to the length of the rolling roll, the height difference between the center of the roll shape and the edge of the rolling roll is 0.1mm.

[0044] In some embodiments, the various preset roll shapes may include: sin, quadratic polynomial, quadratic polynomial, 6th order polynomial, 8th order polynomial, and 10th order polynomial. Figure 2 As shown, the edges of the high-order polynomial roller profile are more convergent than those of the low-order polynomial roller profile.

[0045] When the rollers have the same length and maximum width crown, please refer to Figure 3 As shown, the crown of the sinusoidal and quadratic roll profiles decreases linearly with decreasing width. For quadratic and higher polynomial roll profiles, the higher the degree of the polynomial, the faster the crown decreases with width. It can be seen that when the width reaches a certain level, the crown of the high-order polynomial roll profile almost remains unchanged as the width decreases. In other words, the high-order polynomial roll profile loses its ability to adjust the strip crown when rolling narrower strips.

[0046] In summary, the initial roll shape can be selected based on the actual rolling requirements of the rolling line. The initial roll shape can be any of the following: sin, quadratic polynomial, quaternary polynomial, sixth polynomial, eighth polynomial, tenth polynomial, etc. The crown of the initial roll shape can also be selected based on actual rolling requirements. For example, the initial roll shape can be a concave curve with any crown in the range of -0.1mm to -1mm.

[0047] Step S102: determining a reduced-crown roller shape according to the initial roller shape.

[0048] The amount of convexity of the reduced-convexity roller shape can be within 1.5 mm or can be 0. The convexity of the reduced-convexity roller shape can be positive or negative.

[0049] Similarly, the crown design range of the crown-reducing roller profile can be -1 mm to 1 mm, and the crown-reducing roller profile can be any one of sin, a quadratic polynomial, a quadratic polynomial, a sixth polynomial, an eighth polynomial, a tenth polynomial, etc. In one embodiment, the crown-reducing roller profile can be the same as the initial roller profile.

[0050] Step S103: Based on the width information of the target strip, a reduced crown interval is determined on the initial roll shape, and the reduced crown roll shape is integrated within the reduced crown interval to obtain the target roll shape.

[0051] Specifically, the target strip may include multiple strips of varying widths, and the target strip width information also includes multiple width dimensions. In other words, when rolling the target strip, the rolling line may need to roll strips of varying widths. Therefore, the crown reduction interval within which the crown needs to be reduced can be determined based on the target strip width information. Of course, the length of the crown reduction interval must be less than the length of the rolling rolls.

[0052] After determining the crown reduction interval on the initial roll shape, the first horizontal coordinate parameter of the crown reduction interval along the rolling roll axis can be determined. Specifically, the initial roll shape can be parameterized first and represented by a curve.

[0053] To ensure smooth transitions between the initial roll shape curves, the increment of the initial roll shape along the axial direction of the rolling roll must be less than or equal to 1 mm (the horizontal axis division value is 1 mm). For example, if the length of the rolling roll is 2250 mm, 2250 horizontal coordinates can be divided along the axial direction of the rolling roll to ensure that the increment of the initial roll shape along the axial direction of the rolling roll is 1 mm.

[0054] After determining the initial roll profile curve, the first abscissa parameter of the crown-reducing interval along the roll axis can also be determined. For example, if the length of the crown-reducing interval is 1200mm and the roll length is 2250mm, and 2250 abscissas are defined along the roll axis, the first abscissa parameters of the crown-reducing interval include: (525,0), (526,0), (527,0), ... (1823,0), (1824,0), (1825,0).

[0055] Regarding how to fuse the crown-reducing roll shape within the crown-reducing range to obtain the target roll shape, specifically, the initial roll shape and the crown-reducing roll shape can be parameterized to obtain a parameterized initial roll shape and a parameterized crown-reducing roll shape. Then, within the crown-reducing range, the parameterized initial roll shape and the parameterized crown-reducing roll shape are fused to obtain a parameterized target roll shape. Finally, the target roll shape is obtained based on the parameterized target roll shape.

[0056] The initial roller shape and the reduced crown roller shape are parameterized. Specifically, the second horizontal coordinate parameter of the initial roller shape along the axial direction of the rolling roller can be determined, and the second vertical coordinate parameter of the initial roller shape along the radial direction of the rolling roller can be determined; the third horizontal coordinate parameter of the reduced crown roller shape along the axial direction of the rolling roller can be determined, and the third vertical coordinate parameter of the reduced crown roller shape along the radial direction of the rolling roller can be determined.

[0057] Similarly, let's continue with an example where the length of the crown reduction interval is 1200mm, the length of the rolling roll is 2250mm, the crown of the rolling roll is 1mm, and 2250 horizontal coordinates are divided along the rolling roll axis. The second horizontal coordinate parameters of the initial roll shape are: (0,0), (1,0), (2,0) ... (2248,0), (2249,0), (2250,0); the third horizontal coordinate parameters of the crown reduction roll shape are: (0,0), (1,0), (2,0) ... (2248,0), (2249,0), (2250,0).

[0058] Based on the parametric processing similar to the horizontal axis, the convexity along the radial direction of the rolling roller can be converted into a vertical axis parameter. Each second horizontal axis parameter of the initial roller shape corresponds to a unique second vertical axis parameter, and each third horizontal axis parameter of the reduced convex roller shape corresponds to a unique third vertical axis parameter.

[0059] Regarding how to fuse the parameterized initial roller shape and the parameterized reduced-convexity roller shape within the reduced-convexity interval, specifically, the second horizontal coordinate parameter, the second vertical coordinate parameter, the third horizontal coordinate parameter and the third vertical coordinate parameter can be fused within the reduced-convexity interval to obtain the parameterized target roller shape.

[0060] During the specific implementation process, the first target horizontal coordinate parameter corresponding to the first horizontal coordinate parameter can be selected from the second horizontal coordinate parameter, and the first target vertical coordinate parameter corresponding to the first target horizontal coordinate parameter can be selected from the second vertical coordinate parameter; the second target horizontal coordinate parameter corresponding to the first horizontal coordinate parameter can be selected from the third horizontal coordinate parameter, and the second target vertical coordinate parameter corresponding to the second target horizontal coordinate parameter can be selected from the third vertical coordinate parameter; based on the sum or difference of the first target vertical coordinate parameter and the second target vertical coordinate parameter, the parameterized target roller shape is obtained.

[0061] In some embodiments, the leftmost point of the first horizontal coordinate parameter may be used as the origin of the new coordinate system, that is, the connection point between the initial roller shape and the reduced crown roller shape may be used as the origin.

[0062] Among them, in the process of obtaining the parameterized target roll shape, according to the differences between the initial roll shape and the reduced crown roll shape, the results of obtaining the parameterized target roll shape have the following situations:

[0063] Case 1: If the initial roller shape is a positive convex curve and the reduced convex roller shape is a positive convex curve, the convexity of the parameterized target roller shape obtained by subtracting the reduced convex roller shape (second target ordinate parameter) from the initial roller shape (first target ordinate parameter) is reduced.

[0064] Case 2: If the initial roller shape is a positive convex curve and the reduced convex roller shape is a positive convex curve, the convexity of the parameterized target roller shape obtained by adding the initial roller shape (first target ordinate parameter) to the reduced convex roller shape (second target ordinate parameter) is increased.

[0065] Case 3: If the initial roller shape is a positive convex curve and the reduced convex roller shape is a negative convex curve, the convexity of the parameterized target roller shape obtained by subtracting the reduced convex roller shape (second target ordinate parameter) from the initial roller shape (first target ordinate parameter) is increased.

[0066] Case 4: If the initial roller shape is a positive convex curve and the reduced convex roller shape is a negative convex curve, the convexity of the parameterized target roller shape obtained by adding the initial roller shape (first target ordinate parameter) to the reduced convex roller shape (second target ordinate parameter) increases.

[0067] Case 5: If the initial roller shape is a negative convex curve and the reduced convex roller shape is a positive convex curve, the convexity of the parameterized target roller shape obtained by subtracting the reduced convex roller shape (second target ordinate parameter) from the initial roller shape (first target ordinate parameter) is reduced.

[0068] Case 6: If the initial roller shape is a negative convex curve and the reduced convex roller shape is a positive convex curve, the convexity of the parameterized target roller shape obtained by adding the initial roller shape (first target ordinate parameter) to the reduced convex roller shape (second target ordinate parameter) is reduced.

[0069] Case 7: If the initial roller shape is a negative convex curve and the reduced convex roller shape is a negative convex curve, the convexity of the parameterized target roller shape obtained by subtracting the reduced convex roller shape (second target ordinate parameter) from the initial roller shape (first target ordinate parameter) is increased.

[0070] Case 8: If the initial roller shape is a negative convex curve and the reduced convex roller shape is a negative convex curve, the convexity of the parameterized target roller shape obtained by adding the initial roller shape (first target ordinate parameter) to the reduced convex roller shape (second target ordinate parameter) is reduced.

[0071] In order to better illustrate the technical effects of this embodiment, the following examples are given:

[0072] Example 1: If the initial roll shape is a 4th order polynomial, and the initial roll shape has a convexity of -0.1mm. The length of the convexity reduction interval is 1200mm, and the convexity reduction roll shape is a 2nd order polynomial. Reducing the length of the rolling roll by 2nd order will reduce the convexity by 0.08mm. Subtracting the initial roll shape from the convexity reduction roll shape, the convexity convergence of the target roll shape and the initial roll shape is as follows: Figure 4 As shown, the convexity change of the target roller shape and the initial roller shape is as follows Figure 5 shown.

[0073] according to Figure 4 and Figure 5 As shown, it is not difficult to see that: the initial roll shape is a fourth-order polynomial curve, the convexity of the target roll shape is all positive, and when the roll shape of the rolling roll is the target roll shape, even if the rolling width is less than 1500mm, a negative convex strip shape can be obtained, which cannot be achieved by using only the rolling roll with the initial roll shape.

[0074] Example 2: If the initial roll shape is a 4th-order polynomial, and the initial roll shape has a convexity of -0.1mm. The length of the convexity reduction interval is 1200mm, and the convexity reduction roll shape is sin times. Reducing the length of the rolling roll sin times reduces the convexity by 0.1mm. Subtracting the initial roll shape from the convexity reduction roll shape, the convexity convergence of the target roll shape and the initial roll shape is as follows: Figure 6 As shown, the convexity change of the target roller shape and the initial roller shape is as follows Figure 7 shown.

[0075] according to Figure 6 and Figure 7 As shown, it is not difficult to see that: the initial roll shape is a 4th-order polynomial curve, the convexity of the target roll shape is all positive, and when the roll shape of the rolling roll is the target roll shape, even if the rolling width is less than 1650mm, a negative convex strip shape can be obtained, which cannot be achieved by using only the rolling roll with the initial roll shape.

[0076] In summary, the roller shape determination method provided in the embodiment of the present invention can determine the target roller shape. The rolling roller based on the target roller shape can perform different convexity control on these strips during the process of rolling strips of different width specifications, thereby meeting the diversified production operations of the current rolling production line.

[0077] In the second aspect, based on the same inventive concept, the present invention provides a roller shape determination device through an embodiment of the present invention, which is applied to a rolling roller, and the rolling roller is used to roll the target strip steel, see Figure 8 As shown, the roller shape determining device includes:

[0078] The roll shape selection unit 801 is used to select a roll shape from multiple preset roll shapes as an initial roll shape based on the process requirements of the target strip steel; wherein the multiple preset roll shapes are set for the axial section of the rolling roll.

[0079] The roller shape selection unit 801 is further used to determine the reduced crown roller shape according to the initial roller shape.

[0080] The roll shape synthesis unit 802 is used to determine the reduced crown interval on the initial roll shape based on the width information of the target strip steel, and fuse the reduced crown roll shape within the reduced crown interval to obtain the target roll shape.

[0081] As an optional embodiment, the roll shape synthesis unit 802 includes:

[0082] A parameter processing subunit is used to perform parameter processing on the initial roll shape and the reduced crown roll shape to obtain a parameterized initial roll shape and a parameterized reduced crown roll shape;

[0083] A parameter fusion subunit is used to fuse the parameterized initial roll shape and the parameterized reduced-crown roll shape within the reduced-crown interval to obtain the parameterized target roll shape;

[0084] The parameter conversion subunit is used to obtain the target roll shape based on the parameterized target roll shape.

[0085] As an optional implementation, the parameter processing subunit is further configured to determine a first horizontal coordinate parameter of the crown reduction interval along the axial direction of the rolling roll.

[0086] As an optional implementation manner, the parameter processing subunit is specifically configured to:

[0087] Determine the second horizontal coordinate parameter of the initial roll shape along the axial direction of the rolling roll, determine the second vertical coordinate parameter of the initial roll shape along the radial direction of the rolling roll; determine the third horizontal coordinate parameter of the reduced crown roll shape along the axial direction of the rolling roll, determine the third vertical coordinate parameter of the reduced crown roll shape along the radial direction of the rolling roll;

[0088] As an optional implementation manner, the parameter fusion subunit is specifically configured to:

[0089] In the convexity reduction range, the second abscissa parameter, the second ordinate parameter, the third abscissa parameter and the third ordinate parameter are integrated to obtain the parameterized target roll shape.

[0090] As an optional implementation manner, the parameter fusion subunit is further configured to:

[0091] A first target abscissa parameter corresponding to the first abscissa parameter is selected from the second abscissa parameter, and a first target ordinate parameter corresponding to the first target abscissa parameter is selected from the second ordinate parameter; a second target abscissa parameter corresponding to the first abscissa parameter is selected from the third abscissa parameter, and a second target ordinate parameter corresponding to the second target abscissa parameter is selected from the third ordinate parameter; and a parameterized target roller shape is obtained based on the sum or difference of the first target ordinate parameter and the second target ordinate parameter.

[0092] Since the roll shape determination device described in this embodiment is an electronic device used to implement the roll shape determination method described in the embodiment of the present invention, those skilled in the art will be able to understand the specific implementation and various variations of the electronic device of this embodiment based on the roll shape determination method described in the embodiment of the present invention. Therefore, how this electronic device implements the method described in the embodiment of the present invention will not be described in detail here. As long as those skilled in the art can implement the electronic device used in the roll shape determination method described in the embodiment of the present invention, it falls within the scope of protection of the present invention.

[0093] On the third aspect, based on the same inventive concept, an embodiment of the present invention provides a roll shape determination device that can be applied to rolling rolls in a rolling production line.

[0094] refer to Figure 9As shown, the roller shape determination device provided by an embodiment of the present invention includes: a memory 901, a processor 902 and a code stored in the memory and executable on the processor 902. When executing the code, the processor 902 implements any implementation of the roller shape determination method described above.

[0095] Among them, Figure 9 In the embodiment of the present invention, a bus architecture (represented by bus 900) is shown. Bus 900 may include any number of interconnected buses and bridges, and bus 900 links together various circuits including one or more processors represented by processor 902 and memory represented by memory 901. Bus 900 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not described further herein. Bus interface 905 provides an interface between bus 900 and receiver 903 and transmitter 904. Receiver 903 and transmitter 904 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 902 is responsible for managing bus 900 and general processing, while memory 901 may be used to store data used by processor 902 when performing operations.

[0096] Fourthly, Figure 10 As shown, based on the same inventive concept, the present invention provides a computer-readable storage medium 1000 through an embodiment of the present invention, on which a computer program 1001 is stored. When the computer program 1001 is executed by a processor, any implementation method of the roller shape determination method described above is implemented.

[0097] The technical solutions in the above embodiments of the present invention have at least the following technical effects or advantages:

[0098] The roll profile determination method provided in an embodiment of the present invention determines a reduced crown interval on the initial roll profile based on target strip width information. The target roll profile is then obtained by integrating the reduced crown roll profile within the reduced crown interval. Finally, the target roll profile is used to prepare or select a target rolling roll. Because the target rolling roll has both positive and negative crown profiles, the crown of strips of varying widths can be better controlled when rolling strips of various widths, avoiding a single strip profile and enabling diversified rolling production on the rolling line.

[0099] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable code.

[0100] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer 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 combinations of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer instructions. These computer 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 process 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.

[0101] These computer 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 comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0102] These computer instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0103] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional 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.

[0104] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A roller shape determination method, characterized in that: Applied to a rolling roll, the rolling roll is used to roll a target steel strip, the method comprising: Based on the process requirements of the target steel strip, a roll shape is selected from a plurality of preset roll shapes as an initial roll shape; wherein the plurality of preset roll shapes are set for the axial section of the rolling roll; Determining a crown-reducing roller shape according to the initial roller shape; Based on the width information of the target steel strip, a crown reduction interval is determined on the initial roll shape; Performing parameterization processing on the initial roller shape and the reduced crown roller shape to obtain a parameterized initial roller shape and a parameterized reduced crown roller shape; In the crown reduction range, the parameterized initial roll shape and the parameterized crown reduction roll shape are fused to obtain a parameterized target roll shape; The target roll shape is obtained based on the parameterized target roll shape.

2. The method according to claim 1, wherein After determining the crown reduction interval on the initial roll shape, the method further includes: Determine a first horizontal coordinate parameter of the crown reduction interval along the axial direction of the rolling roll.

3. The method according to claim 2, wherein The parameterizing of the initial roller shape and the reduced crown roller shape includes: Determining a second abscissa parameter of the initial roll shape along the axial direction of the rolling roll, and determining a second ordinate parameter of the initial roll shape along the radial direction of the rolling roll; The third horizontal coordinate parameter of the crown-reducing roller shape along the axial direction of the rolling roller is determined, and the third vertical coordinate parameter of the crown-reducing roller shape along the radial direction of the rolling roller is determined.

4. The method according to claim 3, wherein The step of fusing the parameterized initial roll shape with the parameterized reduced-crown roll shape within the reduced-crown interval includes: In the convexity reduction range, the second abscissa parameter, the second ordinate parameter, the third abscissa parameter and the third ordinate parameter are integrated to obtain the parameterized target roll shape.

5. The method according to claim 4, wherein The fusing of the second horizontal coordinate parameter, the second vertical coordinate parameter, the third horizontal coordinate parameter, and the third vertical coordinate parameter includes: Selecting a first target abscissa parameter corresponding to the first abscissa parameter from the second abscissa parameter, and selecting a first target ordinate parameter corresponding to the first target abscissa parameter from the second ordinate parameter; Selecting a second target abscissa parameter corresponding to the first abscissa parameter from the third abscissa parameter, and selecting a second target ordinate parameter corresponding to the second target abscissa parameter from the third ordinate parameter; The parameterized target roll shape is obtained based on the sum or difference of the first target ordinate parameter and the second target ordinate parameter.

6. A roller shape determining device, characterized in that: Applied to a rolling roller, the rolling roller is used to roll a target steel strip, and the device comprises: a roll shape selection unit, configured to select a roll shape from a plurality of preset roll shapes as an initial roll shape based on the process requirements of the target steel strip; wherein the plurality of preset roll shapes are set for the axial section of the rolling roll; The roller shape selection unit is further configured to determine a reduced-crown roller shape based on the initial roller shape; A roller shape synthesis unit is used to determine a convexity reduction interval on the initial roller shape based on the width information of the target strip; parameterize the initial roller shape and the convexity reduction roller shape to obtain a parameterized initial roller shape and a parameterized convexity reduction roller shape; within the convexity reduction interval, fuse the parameterized initial roller shape and the parameterized convexity reduction roller shape to obtain a parameterized target roller shape; and obtain the target roller shape based on the parameterized target roller shape.

7. A roll shape determination device, comprising a memory, a processor, and a code stored in the memory and executable on the processor, characterized in that: When the processor executes the code, the method according to any one of claims 1 to 5 is implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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