A method for determining the quality of a sickle bend

Abstract

The application discloses a kind of quality determination methods of camber control, belong to plate strip rough rolling control technical field, the method includes: current plate strip odd pass camber control quantity and plate strip parameter are collected;Based on current plate strip odd pass camber control quantity and plate strip parameter, the head bending amount of current plate strip is calculated, and whether the head bending amount of current plate strip is qualified is judged;If the head bending amount of current plate strip is unqualified, then the camber of each odd pass corresponding to it is analyzed in turn, and the reason that the head bending amount of plate strip is unqualified is obtained.The technical scheme of the application can effectively improve the calculation accuracy of camber, and then improve the quality of plate strip.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate strip rough rolling control, in particular to a quality determination method for camber control. BACKGROUND

[0002] In the rough rolling production process of plate strip hot rolling, camber mainly refers to irregular bending of the length direction of the plate strip along the horizontal plane in the rolling process. Generally, plate strip camber occurs at the head and tail of the plate strip. If the camber in the rough rolling process is unqualified, a large camber in the subsequent rolling process will impact the side guide plate, which will greatly affect the control and stability of the subsequent rolling precision and affect the rolling rhythm.

[0003] At present, the main method for controlling camber in rough rolling is to reduce camber by issuing a roll gap inclination value as a camber control quantity. However, there is a lack of an accurate camber head bending amount calculation method and a corresponding quality determination method to determine whether the control quantity matches the camber, and thus it is difficult to accurately optimize the camber control quantity. SUMMARY

[0004] The present application provides a quality determination method for camber control to solve the technical problem that in the technical field of plate strip rough rolling control, there is a lack of an accurate camber control quality determination method to determine whether the control quantity matches the camber, and thus it is difficult to accurately optimize the camber control quantity.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] In one aspect, the present application provides a quality determination method for camber control, comprising:

[0007] collecting a camber control quantity of the current plate strip odd pass and plate strip parameters;

[0008] based on the camber control quantity of the current plate strip odd pass and the plate strip parameters, calculating a head bending amount of the current plate strip, and determining whether the head bending amount of the current plate strip is qualified;

[0009] if the head bending amount of the current plate strip is unqualified, then analyzing the camber of each odd pass corresponding thereto in turn to obtain the reason why the head bending amount of the current plate strip is unqualified.

[0010] Further, the odd pass includes a first pass and a third pass.

[0011] Further, the collecting of the camber control quantity of the current plate strip odd pass and the plate strip parameters comprises:

[0012] Collect the camber control amount of the first pass corresponding to the current strip, the camber control amount of the third pass, the strip length at the end of the first pass and the strip length at the end of the third pass;

[0013] For the strip at the end of the first pass corresponding to the current strip, a sampling position is set every preset length along the length direction of the strip from the head of the strip, to obtain the strip length and the strip center offset value at each sampling position on the strip at the end of the first pass corresponding to the current strip;

[0014] For the strip at the end of the third pass corresponding to the current strip, a sampling position is set every preset length along the length direction of the strip from the head of the strip, to obtain the strip length and the strip center offset value at each sampling position on the strip at the end of the third pass corresponding to the current strip.

[0015] Further, the head bending amount of the current strip is calculated based on the camber control amount of the odd pass of the current strip and the strip parameters, and whether the head bending amount of the current strip is qualified is judged, comprising:

[0016] The head bending amount of the current strip is calculated, and the formula is as follows:

[0017]

[0018] Wherein, Q represents the head bending amount of the current strip; Q1 represents the head bending amount of the current strip at the end of the first pass; Q3 represents the head bending amount of the current strip at the end of the third pass; k1 is the preset weight coefficient of the head bending amount at the end of the first pass; k3 is the preset weight coefficient of the head bending amount at the end of the third pass; f1(x i ) represents the head bending amount weight function of the first pass; f3(x j ) represents the head bending amount weight function of the third pass; Z1(i) is the strip center offset value at the i-th sampling position on the strip at the end of the first pass corresponding to the current strip; Z1(i+1) is the strip center offset value at the i+1-th sampling position on the strip at the end of the first pass corresponding to the current strip; n1 is the number of sampling positions on the strip at the end of the first pass corresponding to the current strip; Z3(j) is the strip center offset value at the j-th sampling position on the strip at the end of the third pass corresponding to the current strip; Z3(j+1) is the strip center offset value at the j+1-th sampling position on the strip at the end of the third pass corresponding to the current strip; n3 is the number of sampling positions on the strip at the end of the third pass corresponding to the current strip;

[0019] The absolute value of Q is compared with a preset head bending amount threshold C, if the absolute value of Q is less than C, it is determined that the head bending amount of the current strip is qualified, otherwise, it is determined that the head bending amount of the current strip is unqualified.

[0020] Further, the expression of the head bending amount weight function of the first pass is:

[0021]

[0022] Wherein, x i represents the strip length at the i-th sampling position on the strip at the end of the first pass corresponding to the current strip; L1 represents the strip length at the end of the first pass corresponding to the current strip.

[0023] Further, the expression of the head bending amount weight function of the third pass is:

[0024]

[0025] Wherein, x j represents the strip length at the j-th sampling position on the strip at the end of the third pass corresponding to the current strip; L3 represents the strip length at the end of the third pass corresponding to the current strip.

[0026] Further, if the head bending amount of the current strip is unqualified, the camber situation of each odd pass corresponding thereto is analyzed in turn to obtain the reason why the head bending amount of the current strip is unqualified, including:

[0027] The absolute value of Q1 is compared with a preset first pass head bending amount threshold E, if the absolute value of Q1 is less than E, it is determined that Q1 is not over limit, at this time the production process of the current strip is intervened by the operator, if the absolute value of Q1 is not less than E, it is determined that Q1 is over limit, at this time the camber situation of the third pass of the current strip is continuously analyzed to obtain the reason why the head bending amount of the current strip is unqualified.

[0028] Further, the camber situation of the third pass of the current strip is analyzed to obtain the reason why the head bending amount of the current strip is unqualified, including:

[0029] The adjustment amount of the camber control amount of the third pass of the current strip is calculated, the formula is as follows:

[0030] ΔS3=S3-S1

[0031] Wherein, ΔS3 is the adjustment amount of the camber control amount of the third pass of the current strip; S3 is the camber control amount of the third pass of the current strip; S1 is the camber control amount of the first pass of the current strip;

[0032] determine whether Q1 or Q3 is same as the positive or negative of AS3, if Q1 and Q3 are not same as the positive or negative of AS3, it is determined that the reason for the unqualified head bending amount of the current strip is that the adjustment direction of the third pass is abnormal, if Q1 or Q3 is same as the positive or negative of AS3, the change amount of the head bending amount of the current strip at the end of the third pass is continuously calculated, and the formula is as follows:

[0033] Delta Q3 = Q3 - Q1

[0034] Wherein, Delta Q3 represents the change amount of the head bending amount of the current strip at the end of the third pass.

[0035] determine whether S1 is same as the positive or negative of Delta Q3, if S1 is same as the positive or negative of Delta Q3, it is determined that the reason for the unqualified head bending amount of the current strip is that the adjustment range of the third pass is abnormal, if S1 is not same as the positive or negative of Delta Q3, it is determined that the reason for the unqualified head bending amount of the current strip is that the adjustment result of the third pass is abnormal.

[0036] In another aspect, the present application also provides an electronic device, comprising a processor and a memory; wherein the memory stores at least one instruction, which is loaded and executed by the processor to realize the above method.

[0037] In another aspect, the present application also provides a computer readable storage medium, which stores at least one instruction, which is loaded and executed by the processor to realize the above method.

[0038] The technical scheme provided by the present application has at least the following beneficial effects:

[0039] 1. Improve the calculation precision of camber: by increasing the quality determination method of three-pass rough rolling camber control, the final head bending amount of the strip and the head bending amount of the odd pass can be more accurately calculated, providing more accurate data support for subsequent other analysis and operation of camber;

[0040] 2. Improve the quality of the strip: by increasing the quality determination method of three-pass rough rolling camber control, the head bending amount of the strip can be accurately calculated, and the camber of the unqualified strip is determined, the specific problem of the camber control amount is found, the precise control of the camber is further optimized, and the quality of the strip is improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0042] Figure 1 is a flowchart of a quality determination method of sickle control provided by an embodiment of the present application;

[0043] Figure 2 is a system block diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0045] First, it should be noted that in the embodiments of the present application, the words such as "exemplarily", "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "exemplarily" is intended to present the concept in a specific manner. In addition, in the embodiments of the present application, the meaning expressed by "and / or" can be both, or can be either one of the two.

[0046] First Embodiment

[0047] The present embodiment provides a quality determination method of sickle control, which can be implemented by an electronic device, which can be a terminal or a server. The execution flow of the method is as shown in Figure 1 The method comprises the following steps:

[0048] S1, collecting the sickle control amount of the current odd pass of the strip and the strip parameters;

[0049] In the above S1, the odd pass includes the first pass and the third pass; the present embodiment mainly collects the center offset value of the current odd pass of the strip, the sickle control amount and the strip length at the end of rolling, and specifically includes: the center offset value Z1 of the first pass of the current strip, in units of mm; the center offset value Z3 of the third pass of the current strip, in units of mm; the sickle control amount S1 issued at the first pass of the current strip, in units of mm; the sickle control amount S3 issued at the third pass of the current strip, in units of mm; the strip length L1 at the end of rolling of the first pass of the current strip, in units of m; the strip length L3 at the end of rolling of the third pass of the current strip, in units of m. The collected center offset value includes the center offset value at different length positions of the strip.

[0050] Specifically, in the embodiment, the center offset value of each odd pass is obtained in the following manner: for the strip corresponding to the first pass at the end of rolling, a sampling position is set every 1m along the length direction of the strip from the head of the strip, so as to obtain the strip length and the center offset value of the strip at each sampling position of the strip corresponding to the first pass at the end of rolling; meanwhile, for the strip corresponding to the third pass at the end of rolling, a sampling position is set every 1m along the length direction of the strip from the head of the strip, so as to obtain the strip length and the center offset value of the strip at each sampling position of the strip corresponding to the third pass at the end of rolling.

[0051] S2, based on the camber control amount of the odd pass of the current strip and the strip parameters, calculating the head bending amount of the current strip, and determining whether the head bending amount of the current strip is qualified;

[0052] Specifically, in the embodiment, the implementation process of S2 is as follows:

[0053] S21, designing the head bending amount weight function of the first and third passes, the expression is as follows:

[0054]

[0055] Wherein, x is the strip length corresponding to the center offset value, and the unit is m. e represents the natural constant.

[0056] S22, calculating the head bending amount of the current strip, the formula is as follows:

[0057]

[0058] Wherein, Q represents the head bending amount of the current strip; Q1 represents the head bending amount of the current strip at the end of the first pass rolling; Q3 represents the head bending amount of the current strip at the end of the third pass rolling; k1 is the preset weight coefficient of the head bending amount at the end of the first pass rolling, and in the embodiment, its value is 0.25; k3 is the preset weight coefficient of the head bending amount at the end of the third pass rolling, and in the embodiment, its value is 0.75; f1(x i ) represents the head bending amount weight function of the first pass; f3(x j) represents the head bending amount weight function of the third pass; Z1(i) is the center offset value of the i-th sampling position on the strip at the end of the first pass corresponding to the current strip; Z1(i+1) is the center offset value of the i+1-th sampling position on the strip at the end of the first pass corresponding to the current strip; n1 is the number of sampling positions on the strip at the end of the first pass corresponding to the current strip; Z3(j) is the center offset value of the j-th sampling position on the strip at the end of the third pass corresponding to the current strip; Z3(j+1) is the center offset value of the j+1-th sampling position on the strip at the end of the third pass corresponding to the current strip; n3 is the number of sampling positions on the strip at the end of the third pass corresponding to the current strip.

[0059] Further, the expression of the head bending amount weight function of the first pass is:

[0060]

[0061] wherein x i represents the length of the strip at the i-th sampling position on the strip at the end of the first pass corresponding to the current strip; L1 represents the length of the strip at the end of the first pass corresponding to the current strip.

[0062] The expression of the head bending amount weight function of the third pass is:

[0063]

[0064] wherein x j represents the length of the strip at the j-th sampling position on the strip at the end of the third pass corresponding to the current strip; L3 represents the length of the strip at the end of the third pass corresponding to the current strip.

[0065] S23, determining whether the final head bending amount is qualified, and the expression is as follows:

[0066]

[0067] wherein |Q| is the absolute value of the final head bending amount of the current strip; C is a constant, and in this embodiment, the value thereof is 20; if it is determined that the head bending amount of the current strip is qualified, it is determined that the camber of the current strip is qualified; if it is determined that the head bending amount of the current strip is not qualified, the next quality determination is continued, that is, the camber of the odd pass of the current unqualified strip is analyzed in sequence, and finally the quality judgment result of the camber of the current strip is obtained, and the pass in which the camber of the current strip appears problems and the specific abnormal reason are found.

[0068] S3, if the head bending amount of the current strip is unqualified, the sickle bending condition of each odd pass corresponding to the head bending amount is analyzed in turn to obtain the reason why the head bending amount of the current strip is unqualified.

[0069] Specifically, in the embodiment, the implementation process of S3 is as follows:

[0070] S31, it is determined whether the head bending amount of the first pass is over limit, and the expression is as follows:

[0071]

[0072] Wherein, |Q1| is the absolute value of the head bending amount of the first pass of the strip at the end of rolling; E is a constant, and the value is 15. The over limit determination is: other conditions- normal intervention of the operator, that is, the worker makes the correct intervention value; over limit represents that the worker intervention value is incorrect, at which time the next quality determination is continued, that is, the third pass of the current strip is analyzed to find the specific reason why the sickle bending is unqualified.

[0073] S32, the adjustment amount of the sickle bending control amount issued in the third pass of the current strip is calculated, and the formula is as follows:

[0074] ΔS3=S3-S1

[0075] Wherein, ΔS3 is the adjustment amount of the sickle bending control amount issued in the third pass of the current strip; S3 is the sickle bending control amount issued in the third pass of the current strip; S1 is the sickle bending control amount issued in the first pass of the current strip;

[0076] S33, it is determined whether the positive and negative of Q1 or Q3 and ΔS3 are the same, and the expression is as follows:

[0077]

[0078] Wherein, if the positive and negative of Q1 and Q3 and ΔS3 are not the same, it is determined that the pass and the specific reason why the head bending amount of the current strip is unqualified are: third pass- abnormal adjustment direction, if the positive and negative of Q1 or Q3 and ΔS3 are the same, the next quality determination is continued.

[0079] S34, the change amount of the head bending amount at the end of rolling in the third pass of the current strip is calculated, and the formula is as follows:

[0080] ΔQ3=Q3-Q1

[0081] Wherein, ΔQ3 represents the change amount of the head bending amount at the end of rolling in the third pass of the current strip;

[0082] S35, it is determined whether the positive and negative of S1 and ΔQ3 are the same, and the expression is as follows:

[0083]

[0084] If S1 and ΔQ3 have the same sign, the current strip head bending amount is determined to be unqualified in the following pass and the specific reason is: third pass - abnormal adjustment range. If S1 and ΔQ3 have different signs, the current strip head bending amount is determined to be unqualified in the following pass and the specific reason is: third pass - abnormal adjustment result. At this time, the worker intervention value is abnormal, but the adjustment direction and adjustment range are correct.

[0085] This concludes the assessment of the sickle bend quality. After the assessment, the sickle bend adjustment amount of the corresponding strip can be further optimized based on the assessment results, thereby optimizing the precise control of the sickle bend and improving the quality of the strip.

[0086] In summary, this embodiment provides a quality judgment method for sickle bend control. This method can accurately calculate the final head bend of the strip and the head bend of odd-numbered passes, thus providing more accurate data support for subsequent analysis and operations related to sickle bends. Furthermore, this method can accurately calculate the head bend of the strip and judge the quality of sickle bends in non-conforming strips, identifying specific problems in sickle bend control, thereby further optimizing the precise control of sickle bends and improving strip quality.

[0087] Second Embodiment

[0088] This embodiment provides an electronic device, such as... Figure 2 As shown, the electronic device includes a processor and a memory; wherein the processor and the memory can be connected via a communication bus; the memory stores at least one instruction, which is loaded and executed by the processor to implement the method of the first embodiment described above. Furthermore, the electronic device may also include a transceiver, the processor and the transceiver can be connected via a communication bus, and the transceiver is used to communicate with other devices.

[0089] Below, in conjunction with Figure 2 A detailed introduction to each component of this electronic device is provided below:

[0090] The processor is the control center of the electronic device. The electronic device can include multiple processors. Each of the processors can be a single-CPU or a multi-CPU. The processor can be one processor or a collective term of multiple processing elements. For example, the processor can be one or more central processing units (CPUs), other general purpose processors, application specific integrated circuits (ASICs), or one or more integrated circuits configured to implement one or more embodiments of the present application, such as one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor can be a microprocessor or any conventional processor, or the like. The processor can perform various functions of the electronic device by running or executing software programs stored in the memory and calling data stored in the memory.

[0091] In a specific implementation, as an embodiment, the processor can include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 1, of course, this is only an exemplary description. Figure 2

[0092] The memory is used to store software programs for implementing the solution of the present application, and is controlled by the processor to perform the implementation. The specific implementation can refer to the above-mentioned method embodiments, which will not be described here.

[0093] ​Optionally, the memory may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory may be integrated with the processor or may exist independently, and may be accessed through the interface circuit of the electronic device (…). Figure 2 (Not shown in the image) is coupled to the processor; however, this embodiment of the invention does not impose specific limitations on this.

[0094] The transceiver may include a receiver and a transmitter. Figure 2 (Not shown separately). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function. The transceiver can be integrated with the processor or exist independently, and is connected through the interface circuit of the electronic device (…). Figure 2 (Not shown in the image) is coupled to the processor, and this embodiment of the invention does not specifically limit this.

[0095] In addition, it should be noted that, Figure 2 The structure of the electronic device shown is not intended to limit the device. Actual devices may include more or fewer components than shown, or combine certain components, or have different component arrangements. Furthermore, the technical effects achieved by this electronic device when performing the method of the first embodiment described above can be referenced to the technical effects described in the first embodiment; therefore, they will not be repeated here.

[0096] Third Embodiment

[0097] This embodiment provides a computer-readable storage medium storing at least one instruction, which is loaded and executed by a processor to implement the method of the first embodiment described above. The computer-readable storage medium may be a ROM, random access memory, CD-ROM, magnetic tape, floppy disk, or optical data storage device, etc. The instruction stored therein can be loaded and executed by a processor in a terminal.

[0098] Moreover, it should be noted that the present application can be provided as a method, an apparatus, or a computer program product. Therefore, the embodiments of the present application can take the form of an entirely or partially hardware embodiment, an entirely or partially software embodiment, or an embodiment combining software and hardware aspects. Furthermore, when implemented in software, the embodiments of the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, a computer diskette, an optical storage medium, a magnetic storage medium, and a semiconductor memory device). The computer program product includes one or more computer instructions that when loaded and executed by a computer, cause the computer to carry out the processes or functions described in the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, such as from a website, a computer, a server, or a data center to another website, computer, server, or data center through a wired (for example, infrared, wireless, microwave, or the like) manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, or the like, including one or more collections of available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0099] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, an embedded processor, or a processor of another programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate a device that implements the flow Figure 1 The flow or the plurality of flows and / or blocks Figure 1 The device that implements the functions specified in the flow or the plurality of flows and / or blocks.

[0100] These computer program instructions can also be stored in a computer-readable storage medium that can guide the computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a product including instruction devices that implement the flow Figure 1 The flow or the plurality of flows and / or blocks Figure 1the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide a process for implementing the functions specified in the flowchart block(s). Figure 1 the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide a process for implementing the functions specified in the flowchart block(s). Figure 1 the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide a process for implementing the functions specified in the flowchart block(s).

[0101] It should also be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "including a…", does not exclude the presence of other identical elements in the process, method, article or terminal device including the element. In addition, the term "and / or" is merely a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone, where A and B can be singular or plural. In addition, the character " / " in the present document generally represents an "or" relationship between the front and rear associated objects, but it can also represent an "and / or" relationship, which can be understood in the context before and after. "One or more" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0102] In addition, it can be understood that in various embodiments of the present application, the size of the sequence number of the above processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0103] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or in a combination of computer software and electronic hardware. Whether the 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 the present application.

[0104] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of functional modules / units is merely a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms. The units described as separate components can be or can not be physically separated, and the components displayed as units can be or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment. In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present, or two or more units can be integrated in one unit.

[0105] If the method is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0106] Finally, it should be noted that the above description is only the preferred embodiment of the application, it should be pointed out that although the preferred embodiment of the application has been described, for those skilled in the art, once the basic creative concept of the application is known, several improvements and refinements can be made without departing from the principles of the application, and these improvements and refinements should also be considered as the protection scope of the application. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the application.

Claims

1. A method of determining the quality of a sickle bend control, characterized by The method comprises the following steps: collecting the camber control amount of the odd passes of the current strip and the strip parameters; calculating the head camber amount of the current strip based on the camber control amount of the odd passes of the current strip and the strip parameters, and determining whether the head camber amount of the current strip is qualified, comprising: calculating the head camber amount of the current strip, and the formula is as follows: ； wherein, represents the head bending amount of the current strip; represents the head bending amount at the end of the first pass rolling of the current strip; represents the head bending amount at the end of the third pass rolling of the current strip; is a preset weight coefficient of the head bending amount at the end of the first pass rolling; is a preset weight coefficient of the head bending amount at the end of the third pass rolling; represents the head bending amount weight function of the first pass; represents the head bending amount weight function of the third pass; represents the strip center offset value at the i-th sampling position on the strip at the end of the first pass rolling corresponding to the current strip; represents the strip center offset value at the i+1-th sampling position on the strip at the end of the first pass rolling corresponding to the current strip; represents the number of sampling positions on the strip at the end of the first pass rolling corresponding to the current strip; represents the strip center offset value at the j-th sampling position on the strip at the end of the third pass rolling corresponding to the current strip; represents the strip center offset value at the j+1-th sampling position on the strip at the end of the third pass rolling corresponding to the current strip; represents the number of sampling positions on the strip at the end of the third pass rolling corresponding to the current strip. Will The absolute value is compared with the preset head curvature threshold C. If the absolute value is less than C, the head bending amount of the current strip is deemed to be qualified; otherwise, the head bending amount of the current strip is deemed to be unqualified. if the head camber amount of the current strip is unqualified, then the camber conditions of each odd pass corresponding to the current strip are analyzed in sequence to obtain the reason why the head camber amount of the current strip is unqualified.

2. The sickling control quality judgment method according to Claim 1, wherein The odd passes comprise a first pass and a third pass.

3. The sickling control quality judgment method according to Claim 1, wherein The collecting of the camber control amount of the odd passes of the current strip and the strip parameters comprises: collecting the camber control amount of the first pass, the camber control amount of the third pass, the strip length at the end of the first pass and the strip length at the end of the third pass corresponding to the current strip; for the strip at the end of the first pass corresponding to the current strip, a sampling position is set every preset length along the length direction of the strip from the head of the strip, and the strip length and the strip center offset value at each sampling position on the strip at the end of the first pass corresponding to the current strip are obtained; for the strip at the end of the third pass corresponding to the current strip, a sampling position is set every preset length along the length direction of the strip from the head of the strip, and the strip length and the strip center offset value at each sampling position on the strip at the end of the third pass corresponding to the current strip are obtained.

4. The sickling control quality judgment method according to Claim 1, wherein The expression of the head camber amount weight function of the first pass is as follows: ； wherein, represents the strip length at the i-th sampling position on the strip at the end of the first pass of rolling corresponding to the current strip; represents the strip length at the end of the first pass of rolling corresponding to the current strip.

5. The sickling control quality judgment method according to claim 4, characterized by, The expression of the head camber amount weight function of the third pass is as follows: ； wherein, represents the strip length at the jth sampling position on the strip at the end of the third pass of rolling corresponding to the current strip; represents the strip length at the end of the third pass of rolling corresponding to the current strip.

6. The sickling control quality judgment method according to Claim 1, wherein The if the head camber amount of the current strip is unqualified, then the camber conditions of each odd pass corresponding to the current strip are analyzed in sequence to obtain the reason why the head camber amount of the current strip is unqualified, comprising: Will The absolute value is compared with the preset first-pass head bending amount threshold E. If the absolute value is less than E, then determine However, at this point, the operator intervenes in the current production process of the strip. If the absolute value of is not less than E, then determine If the limit is exceeded, continue to analyze the sickle bend of the current strip in the third pass to find out the reason why the bending amount of the current strip head is unqualified.

7. The sickling control quality judgment method according to Claim 6, wherein analyzing the camber condition of the third pass of the current strip to obtain the reason why the head camber amount of the current strip is unqualified, comprising: calculating the adjustment amount of the camber control amount of the third pass of the current strip, and the formula is as follows: ； wherein, is the adjustment amount of the adjustment of the crookedness control amount issued for the third pass of the current strip; is the crookedness control amount issued for the third pass of the current strip; is the crookedness control amount issued for the first pass of the current strip; determine or and the same, if and and the same, then determine that the current strip head bending amount is unqualified because the third pass adjustment direction is abnormal, if or and the same, then continue to calculate the change amount of the head bending amount of the current strip at the end of the third pass rolling, the formula is as follows: ； wherein, represents the change in the amount of head bow at the end of the third pass of the current strip; determine whether the signs of are the same, if the signs of are the same, it is determined that the cause of the unqualified head bending amount of the strip is that the adjustment range of the third pass is abnormal, if the signs of are not the same, it is determined that the cause of the unqualified head bending amount of the strip is that the adjustment result of the third pass is abnormal.

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