A straightening machine roll gap precision compensation method and system, a straightening machine and a storage medium
By establishing the correspondence between the straightening reaction force and the deformation of the frame, and using finite element analysis and theoretical calculations, the inlet and outlet gaps and pre-bending of the straightener are automatically adjusted, solving the problem of inaccurate gaps caused by frame deformation. This achieves efficient and precise straightener roll gap setting, improving production quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIER MACHINE TOOL GROUP
- Filing Date
- 2026-03-11
- Publication Date
- 2026-06-23
AI Technical Summary
When straightening materials with large thickness, large width, and high yield strength, existing straightening machines suffer from frame deformation, leading to inaccurate adjustment of the inlet and outlet gaps. This process relies on operator experience, is costly, and cannot be compensated online in a timely manner.
By establishing the correspondence between straightening reaction force and frame deformation, a deformation database is pre-generated using finite element analysis. Combined with material properties and equipment parameters, theoretical calculations are performed to automatically adjust the inlet/outlet gap and pre-bending amount, thereby achieving precise compensation.
This technology enables the straightener to set high-precision roll gaps before the sheet material passes through, reducing reliance on operational experience, improving the first sheet material pass rate and production efficiency, reducing hardware costs and wear, and ensuring the long-term stability of the equipment.
Smart Images
Figure CN122263294A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of straightening machine gap adjustment technology, and in particular to a method, system, straightening machine and storage medium for straightening machine roll gap accuracy compensation. Background Technology
[0002] A straightening machine uses multiple sets of intersecting rollers to repeatedly bend materials, releasing stress and achieving a straightening effect. During this repeated bending, the rollers and frame of the straightening machine must withstand straightening reaction forces. When straightening materials with significant thickness, width, and yield strength, these reaction forces can reach hundreds of tons. Even with a high-strength design for the straightening machine frame, deformation of 0.1mm to 0.5mm can still occur under such forces.
[0003] The theoretical inlet and outlet gap of a straightening machine can be calculated using the three-point bending deformation principle in straightening. The inlet and outlet gap is adjusted to achieve this theoretical gap, and a dial indicator is used to measure it. When the sheet material passes through, the dial indicator reading is observed; if the gap significantly increases, the straightened sheet material is substandard. The industry practice is to estimate the increase in inlet and outlet gap under the straightening reaction force based on experience, adjust the gap to be smaller than the theoretical gap, and then test the flatness of the straightened sheet material, repeatedly adjusting and testing the difference between the actual and theoretical gaps. However, because different straightening machine models have different frame rigidity, and the thickness, width, and yield strength of the straightened sheet material vary, this empirical estimation method has poor portability.
[0004] Some high-end straightening machines have detection switches installed at the inlet and outlet to detect and compensate for the actual values at the inlet and outlet. This approach has three disadvantages: 1. It increases the cost of sensors and their control devices; 2. Adjusting the gap under the reaction force of a straightening machine of hundreds of tons causes significant wear on the adjustment device; 3. The adjustment is lagging and cannot be adjusted to the target gap in a timely manner. Some straightening machine models have a pre-bending function for the straightening rollers, which can compensate for the deformation of the straightening machine frame perpendicular to the material flow direction. However, there is no effective means to detect deformation perpendicular to the material flow direction, and the pre-bending function cannot compensate online; it still relies on operator experience and experimentation. Summary of the Invention
[0005] This application provides a method, system, straightener, and storage medium for compensating for the roll gap accuracy of a straightener, in order to solve the above-mentioned problems.
[0006] On one hand, this application provides a method for compensating the roll gap accuracy of a straightening machine. The method includes the following steps: Step S1: Establishing a first correspondence between the straightening reaction force and the deformation of the straightening machine frame at the inlet and outlet positions, and a second correspondence between the straightening reaction force and the deformation of the straightening machine frame perpendicular to the material flow direction; Step S2: Based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, obtaining the theoretical gap value of the straightening machine inlet and outlet and the estimated straightening reaction force through theoretical calculation; Step S3: According to the estimated straightening reaction force calculated in Step S2, querying the first and second correspondences, obtaining the pre-adjustment amount of the inlet and outlet gap and the pre-adjustment amount of the pre-bending adjustment, respectively; Step S4: Based on the theoretical gap value of the inlet and outlet and the pre-adjustment amount of the inlet and outlet gap, determining the actual adjustment value of the inlet and outlet gap; based on the pre-adjustment amount of the pre-bending adjustment, determining the actual value of the pre-bending adjustment; Step S5: Controlling the straightening machine to set according to the actual adjustment value of the inlet and outlet gap and the actual value of the pre-bending adjustment.
[0007] In one implementation of this application, in step S2, the attribute parameters include elastic modulus, yield strength, width, and thickness; the equipment parameters include the number of straightening rollers, the spacing between straightening rollers, and the diameter of the straightening rollers.
[0008] In one implementation of this application, in step S2, based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, the theoretical gap value of the inlet and outlet and the estimated straightening reaction force are calculated using the three-point bending deformation theory in the straightening principle. Through the three-point bending deformation theory, the accurate theoretical roll gap and straightening reaction force can be calculated directly based on the objective parameters of the material (such as elastic modulus and yield strength) and the equipment (such as roll diameter and spacing). This provides an accurate input benchmark for subsequent deformation compensation, allowing for the setting of near-ideal process parameters before straightening, avoiding the problems of unstable quality, low efficiency, and material waste caused by relying on operator feel and requiring multiple adjustments of the sheet material for verification in traditional methods.
[0009] In one implementation of this application, in step S1, the first and second correspondences are obtained through the following steps: establishing a finite element analysis model of the straightening machine frame; applying a series of straightening reaction forces of different magnitudes to the finite element analysis model; calculating the first deformation of the frame at the inlet / outlet position and the second deformation perpendicular to the material flow direction under each straightening reaction force through finite element analysis; and forming the first and second correspondences based on a series of straightening reaction forces and their corresponding first and second deformations. During the equipment manufacturing or debugging phase, a precise "deformation database" is pre-established through computer simulation. It simulates the straightening reaction forces under various possible working conditions through finite element analysis, accurately calculating the corresponding deformation of the frame, thereby transforming the mechanical structure deformation, which is difficult to measure directly, into a queryable digital relationship (point table or function). This provides a core data foundation for subsequent online automatic compensation, enabling rapid and accurate precision compensation for different materials without relying on operator experience or additional hardware sensors.
[0010] In one implementation of this application, the first and second correspondences are stored in the control system of the straightening machine in the form of a data point table or a fitting function. During the straightening operation, the system can immediately obtain the corresponding deformation pre-compensation amount by looking up the table or substituting into the function based on the calculated real-time straightening reaction force. This approach advances the complex finite element analysis process, resulting in rapid and lag-free online compensation response, and eliminates the need to install easily worn sensors on the equipment, thereby reducing system cost and maintenance difficulty while ensuring accuracy.
[0011] In one implementation of this application, in step S4, the actual adjustment value of the inlet / outlet gap is equal to the theoretical gap value of the inlet / outlet minus the pre-adjustment amount of the inlet / outlet gap; the actual value of the pre-bending adjustment is equal to the preset pre-bending adjustment reference value plus the pre-adjustment amount of the pre-bending adjustment.
[0012] In one implementation of this application, the method further includes: inputting or selecting the property parameters of the material to be straightened on the human-machine interface (HMI) of the straightening machine; the calculation and query processes of steps S1 to S4 are automatically executed in the control system of the straightening machine, and the actual adjustment values of the calculated inlet / outlet gap and the actual values of the pre-bending adjustment are displayed on the HMI. The operator only needs to input or select known material parameters on the HMI; subsequent complex steps such as theoretical calculations, reaction force queries, and deformation compensation are all automatically completed by the control system, which directly displays the final adjustment values to be executed. This greatly reduces the requirements for the operator's experience and technical level, avoids human calculation errors, ensures the consistency and accuracy of process parameter settings, and achieves one-click intelligent setting.
[0013] Secondly, this application also provides a straightener roll gap accuracy compensation system, the system comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the aforementioned straightener roll gap accuracy compensation method.
[0014] Furthermore, this application also provides a straightening machine, including the aforementioned straightening machine roll gap accuracy compensation system.
[0015] Finally, this application also provides a non-volatile computer storage medium for straightening machine roll gap accuracy compensation, which stores computer-executable instructions that are executed by a processor to implement the aforementioned straightening machine roll gap accuracy compensation method.
[0016] The present application provides a method, system, straightener, and storage medium for compensating the roll gap accuracy of a straightener, which has the following beneficial effects: 1. By using theoretical calculations and pre-stored deformation correlation data, the deformation of the frame under a specific straightening reaction force can be accurately predicted, and the compensated roll gap and pre-bending actual set values can be automatically calculated accordingly. This fundamentally changes the traditional adjustment mode that relies on repeated trial and error based on operator experience, allowing the straightener to complete high-precision roll gap settings before the plate passes through, avoiding inaccurate straightening gaps caused by frame deformation, thereby significantly improving the straightening pass rate of the first plate and overall production efficiency.
[0017] 2. The system integrates parameter input, automatic calculation, data query, and control output modules, combining material properties, equipment parameters, mechanical models, and deformation data into a single unit. Operators only need to input basic material parameters, and the system can automatically complete all subsequent complex calculations and queries, outputting directly executable setting commands. This significantly reduces reliance on operator experience, ensuring consistency and repeatability of straightening process parameter settings for different batches and materials, and achieving standardized and digital management of the straightening process.
[0018] 3. Compensation is performed using pre-generated deformation data tables or functions, eliminating the need for additional high-precision real-time detection sensors at the straightener's inlet and outlet. This saves on hardware costs and avoids maintenance issues with the detection device under harsh operating conditions. More importantly, it is a pre-compensation rather than a delayed adjustment; the actuator only operates once before straightening based on the calculated results, avoiding the enormous wear and mechanical lag problems caused by dynamic adjustments under hundreds of tons of straightening reaction force, thereby improving the long-term stability and reliability of the equipment. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A flowchart of a method for compensating the roll gap accuracy of a straightening machine is provided in an embodiment of this application; Figure 2 This is a schematic diagram of finite element analysis, mesh generation, and force loading provided for an embodiment of this application; Figure 3 A schematic diagram of the finite element analysis results provided for an embodiment of this application; Figure 4 Line graphs of straightening reaction force and deformation provided in embodiments of this application; Figure 5 This is a schematic diagram of the human-computer interaction interface provided in the embodiments of this application; Figure 6 This is a schematic diagram of the straightening machine structure, straightening gap, and reaction force provided in the embodiments of this application; Figure 7 A diagram illustrating the composition of a roller gap accuracy compensation system for a straightening machine, provided in an embodiment of this application. Figure label: Figure 2 In the middle, 1 is the straightening base, 2 is the straightening machine beam, 3 is the straightening roller, and 4 is the sheet material to be straightened. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] This application provides a method, system, straightener, and storage medium for compensating for the roll gap accuracy of a straightener. The technical solutions proposed in this application will be described in detail below with reference to the accompanying drawings.
[0022] Example 1 Figure 1 This is a flowchart illustrating a method for compensating for the roll gap accuracy of a straightening machine, provided as an embodiment of this application. Figure 1 As shown, the method mainly includes the following steps: Step S1: Establish a first correspondence between the straightening reaction force and the deformation of the straightening machine frame at the inlet and outlet positions, and a second correspondence between the straightening reaction force and the deformation of the straightening machine frame perpendicular to the material flow direction. Step S2: Based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, obtain the theoretical gap value h at the inlet and outlet of the straightening machine through theoretical calculation. theory .
[0023] Step S3: Based on the estimated straightening reaction force F calculated in step S2, query the first correspondence and the second correspondence to obtain the pre-adjustment amount δ1 of the inlet and outlet gap and the pre-adjustment amount δ2 of the pre-bending adjustment, respectively. Step S4: Based on the theoretical gap value of the inlet and outlet and the pre-adjustment amount of the gap, determine the actual adjustment value of the gap; based on the pre-adjustment amount of the pre-bending adjustment, determine the actual value of the pre-bending adjustment; Step S5: Control the straightening machine to set according to the actual adjustment value of the inlet / outlet gap and the actual value of the pre-bending adjustment.
[0024] In this application, in step S2, the attribute parameters include elastic modulus, yield strength, width, and thickness; the equipment parameters include the number of straightening rollers, the spacing between straightening rollers, and the diameter of the straightening rollers.
[0025] In this application, in step S2, based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, the theoretical gap value of the inlet and outlet and the estimated straightening reaction force are calculated using the three-point bending deformation theory in the straightening principle.
[0026] In this application, in step S1, the first and second correspondences are obtained through the following steps: establishing a finite element analysis model of the straightening machine frame; applying a series of straightening reaction forces of different magnitudes to the finite element analysis model; calculating the first deformation of the frame at the inlet / outlet position and the second deformation perpendicular to the material flow direction under each straightening reaction force through finite element analysis; and forming the first and second correspondences based on a series of straightening reaction forces and their corresponding first and second deformations. Figure 2 This is a schematic diagram of mesh generation and force loading in finite element analysis, showing the three-dimensional modeling, mesh generation, and straightening reaction force loading of the straightening machine frame for deformation analysis. Figure 3 This is a schematic diagram of the finite element analysis results, showing the deformation cloud map of the frame (especially at the entrance / exit position and perpendicular to the logistics direction) under specific straightening reaction forces.
[0027] In this application, the first and second correspondences are stored in the control system of the straightening machine in the form of a data point table or a fitting function. Figure 4 It is a line graph of straightening reaction force and deformation, which shows a series of curves or data points showing the functional relationship between straightening reaction force and corresponding deformation at the inlet and outlet positions, as well as the straightening reaction force and deformation perpendicular to the logistics direction, obtained through finite element analysis.
[0028] In this application, in step S4, the actual adjustment value of the inlet / outlet gap is equal to the theoretical gap value of the inlet / outlet minus the pre-adjustment amount of the inlet / outlet gap; denoted as: h actual =h theory -δ1.
[0029] The actual value of the pre-bending adjustment is equal to the preset pre-bending adjustment reference value plus the pre-adjustment amount of the pre-bending adjustment, denoted as: P actual =P bassline +δ2.
[0030] In this application, the method further includes: inputting or selecting the attribute parameters of the material to be straightened on the human-machine interface of the straightening machine; the calculation and query process of steps S1 to S4 is automatically executed in the control system of the straightening machine, and the actual adjustment value of the calculated inlet and outlet gap and the actual value of the pre-bending adjustment are displayed on the human-machine interface. Figure 5 This is a schematic diagram of the human-machine interface (HMI) of a straightening machine, showing an example of the interface layout where the operator inputs material parameters (such as elastic modulus, yield strength, width, and thickness) and the background calculates and displays the theoretical gap value, straightening reaction force, pre-adjustment amount, and final adjustment value.
[0031] Example 2 In this application, the structural diagram of the straightening machine, the straightening gap, and the reaction force are shown below. Figure 6 As shown, the inlet and outlet gaps can be initially determined by the sheet's yield strength and thickness. Generally, the inlet and outlet gaps are smaller than the sheet thickness. The sheet repeatedly bends within the straightener, creating a straightening reaction force F1 on the upper straightener roller and F2 on the lower straightener roller. Because the outlet gap is larger than the inlet gap, the bending radius of the sheet gradually increases, gradually releasing the internal stress and making the sheet flat. If the inlet and outlet gaps are not set properly, the sheet will not reach the required bending radius, and all internal stress cannot be released, thus preventing straightening. The following steps are used to achieve straightener roller gap accuracy compensation.
[0032] 1. Given the elastic modulus, yield strength, width, thickness, proportion of the plastic deformation zone of the sheet to be straightened, and the equipment parameters such as the number of straightening rollers, the spacing between straightening rollers, and the diameter of straightening rollers, the gap value of the inlet and outlet of the straightening machine and the straightening reaction force can be calculated theoretically.
[0033] 2. By modeling the straightening machine frame, apply corresponding straightening reaction forces, observe and record the deformation at the inlet / outlet positions and the deformation perpendicular to the material flow direction. By applying a series of straightening reaction forces to the model, obtain a table showing the relationship between the straightening reaction forces and the deformation at the inlet / outlet positions, and the relationship between the straightening reaction forces and the deformation perpendicular to the material flow direction.
[0034] 3. The human-computer interaction interface of the straightening machine includes a program for calculating the gap between the straightening machine's inlet and outlet, a program for calculating the straightening reaction force, a table of the straightening reaction force and the deformation at the inlet and outlet positions, and a table of the straightening reaction force and the deformation perpendicular to the material flow direction.
[0035] 4. The operator inputs the material's elastic modulus, width, thickness, and yield strength parameters on the human-computer interaction interface. The background process executes the inlet and outlet gap calculation program of the straightening machine to obtain the theoretical gap value of the straightening machine outlet. 5. The background process executes the straightening reaction force calculation program to obtain the straightening reaction force; 6. By comparing the straightening reaction force with the deformation points at the inlet and outlet positions, and the straightening reaction force with the deformation points perpendicular to the logistics direction, the values required for pre-adjustment of the inlet and outlet gap and pre-bending adjustment can be obtained.
[0036] 7. Subtract the pre-adjustment value from the theoretical gap value at the inlet and outlet to obtain the actual adjustment value of the gap; add the pre-adjustment value to the pre-bending adjustment to obtain the actual pre-bending adjustment value.
[0037] 8. The equipment performs inlet and outlet gap adjustment and pre-bending adjustment based on actual values.
[0038] Example 3 The above is a method for compensating the roll gap accuracy of a straightening machine provided by an embodiment of this application. Based on the same inventive concept, an embodiment of this application also provides a system for compensating the roll gap accuracy of a straightening machine. Figure 7 This application provides a schematic diagram of a roller gap accuracy compensation system for a straightening machine, as shown in the embodiments. Figure 7 As shown, the device mainly includes: at least one processor 701; and a memory 702 communicatively connected to the at least one processor; wherein the memory 702 stores instructions that can be executed by the at least one processor 701, and the instructions are executed by the at least one processor 701 to enable the at least one processor 701 to complete the aforementioned method for compensating the roll gap accuracy of a straightening machine.
[0039] Example 4 This application also provides a straightening machine, including the aforementioned straightening machine roll gap accuracy compensation system.
[0040] Example 5 In addition, this application embodiment also provides a non-volatile computer storage medium for straightening machine roll gap accuracy compensation, which stores computer-executable instructions, which are executed by a processor to implement the aforementioned straightening machine roll gap accuracy compensation method.
[0041] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0042] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0043] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0044] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.
[0045] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.
[0046] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0047] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
Claims
1. A method for compensating for the roll gap accuracy of a straightening machine, characterized in that, The method includes the following steps: Step S1: Establish a first correspondence between the straightening reaction force and the deformation of the straightening machine frame at the inlet and outlet positions, and a second correspondence between the straightening reaction force and the deformation of the straightening machine frame perpendicular to the material flow direction. Step S2: Based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, obtain the theoretical gap value of the inlet and outlet of the straightening machine and the estimated straightening reaction force through theoretical calculation; Step S3: Based on the estimated straightening reaction force calculated in step S2, query the first correspondence and the second correspondence to obtain the pre-adjustment amount of the inlet / outlet gap and the pre-adjustment amount of the pre-bending adjustment, respectively. Step S4: Based on the theoretical gap value of the inlet and outlet and the pre-adjustment amount of the gap, determine the actual adjustment value of the gap; based on the pre-adjustment amount of the pre-bending adjustment, determine the actual value of the pre-bending adjustment; Step S5: Control the straightening machine to set according to the actual adjustment value of the inlet / outlet gap and the actual value of the pre-bending adjustment.
2. The method for compensating for the roll gap accuracy of a straightening machine according to claim 1, characterized in that, In step S2, the attribute parameters include elastic modulus, yield strength, width, and thickness; the equipment parameters include the number of straightening rollers, the spacing between straightening rollers, and the diameter of the straightening rollers.
3. The method for compensating for the roll gap accuracy of a straightening machine according to claim 1, characterized in that, In step S2, based on the property parameters of the material to be straightened and the equipment parameters of the straightening machine, the theoretical gap value of the inlet and outlet and the estimated straightening reaction force are calculated using the three-point bending deformation theory in the straightening principle.
4. The method for compensating for the roll gap accuracy of a straightening machine according to claim 1, characterized in that, In step S1, the first and second correspondences are obtained through the following steps: Establish a finite element analysis model of the straightening machine frame; A series of straightening reaction forces of different magnitudes were applied to the finite element analysis model; The first deformation of the frame at the inlet / outlet position and the second deformation perpendicular to the material flow direction under each straightening reaction force were obtained by finite element analysis. Based on a series of straightening reaction forces and their corresponding first and second deformations, the first and second correspondences are formed.
5. The method for compensating for the roll gap accuracy of a straightening machine according to claim 4, characterized in that, The first and second correspondences are stored in the control system of the straightening machine in the form of a data point table or a fitting function.
6. The method for compensating for the roll gap accuracy of a straightening machine according to claim 1, characterized in that, In step S4, the actual adjustment value of the inlet / outlet gap is equal to the theoretical gap value of the inlet / outlet minus the pre-adjustment amount of the inlet / outlet gap; The actual value of the pre-bending adjustment is equal to the preset pre-bending adjustment benchmark value plus the pre-adjustment amount of the pre-bending adjustment.
7. The method for compensating for the roll gap accuracy of a straightening machine according to claim 1, characterized in that, The method further includes: inputting or selecting the property parameters of the material to be straightened on the human-machine interface of the straightening machine; the calculation and query process of steps S1 to S4 is automatically executed in the control system of the straightening machine, and the actual adjustment value of the calculated inlet and outlet gap and the actual value of the pre-bending adjustment are displayed on the human-machine interface.
8. A roller gap accuracy compensation system for a straightening machine, characterized in that, The system includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform a method for compensating the roll gap accuracy of a straightening machine as described in any one of claims 1-7.
9. A straightening machine, characterized in that, Includes a straightener roll gap accuracy compensation system as described in claim 8.
10. A non-volatile computer storage medium for straightening machine roll gap accuracy compensation, storing computer-executable instructions, characterized in that, The computer-executable instructions are executed by the processor to implement the method for compensating the roll gap accuracy of a straightening machine as described in any one of claims 1-7.