CN120838906A

CN120838906A - A continuous roll forming method for stainless steel corrugated backboard

Info

Publication number: CN120838906A
Application number: CN202511347259.8A
Authority: CN
Inventors: 黄剑; 余玺秋; 覃士铭; 杨俊文; 王法智
Original assignee: Far East Photovoltaic Technology Guangdong Co ltd
Current assignee: Far East Photovoltaic Technology Guangdong Co ltd
Priority date: 2025-09-19
Filing date: 2025-09-19
Publication date: 2025-10-28
Anticipated expiration: 2045-09-19
Also published as: CN120838906B

Abstract

The present application belongs to the field of photovoltaic module manufacturing, and provides a continuous roll-forming method for stainless steel corrugated backboard, comprising: unfolding and feeding the stainless steel sheet through an automatic hydraulic feed rack, so that the stainless steel sheet enters the forming process; using a manual front shear to cut the front end of the stainless steel sheet to adjust the starting state of the sheet to enter the subsequent process; guiding the cut stainless steel sheet to the forming roller through a feed guide plate, the forming roller adopts a multi-section roller structure, the stainless steel sheet passes through each section of the roller in turn, and each section of the roller continuously rolls the stainless steel sheet to process the stainless steel sheet into a corrugated sheet with multiple groups of wave peak structures; during the rolling process, by adjusting the rolling path and the contour design of the roller, precise control of the wave pitch and wave height structural parameters of the corrugated sheet is achieved; after the corrugated sheet is roll-formed, the sheet is cut according to a preset size using a hydraulic cutting module to obtain the required stainless steel corrugated backboard.

Description

Continuous roll forming method of stainless steel corrugated backboard

Technical Field

The invention belongs to the field of photovoltaic module manufacturing, and particularly relates to a continuous roll forming method of a stainless steel corrugated backboard.

Background

In the field of photovoltaic module manufacturing, the stainless steel corrugated backboard is a key component for improving the wind pressure deformation resistance of the module due to the high strength and corrosion resistance. The molding process of the traditional stainless steel corrugated backboard mainly depends on stamping or bending technology:

When the traditional stamping/bending process adopts single stamping or sectional bending, the stainless steel plate is easy to crack due to local stress concentration, and the formed wave crest structural parameters (such as wave distance and wave height) are difficult to accurately control, the manual debugging is needed, the material utilization rate is low (about 60% -70%), and the requirement of photovoltaic module batch production on the strength consistency of the backboard cannot be met.

The existing rolling equipment is designed for common metal plates, adopts single-section roller one-step forming, can only process a simple wave structure, can not realize continuous forming of multiple groups of wave crests, lacks a dynamic adjustment mechanism for rolling paths and roller outlines, is difficult to adapt to the high-precision forming requirement of stainless steel plates with the thickness of 0.5 mm-0.7 mm, and particularly has obvious technical bottlenecks on cooperative control of wave distance and wave height parameters.

On the premise of not adding additional reinforcing ribs, the high-strength molding of the stainless steel corrugated backboard is realized through a continuous rolling process, and meanwhile, the problems of stress concentration cracking, inaccurate parameter control, low production efficiency and the like in the traditional process are solved, so that the method becomes a technical problem to be solved in the field.

Disclosure of Invention

The application provides a continuous rolling forming method of a stainless steel corrugated backboard, which aims to realize high-strength forming of the stainless steel corrugated backboard by a continuous rolling process on the premise of not adding additional reinforcing ribs, and solves the problems of stress concentration cracking, inaccurate parameter control, low production efficiency and the like in the traditional process.

The application provides a continuous rolling forming method of a stainless steel corrugated backboard, which is applied to an electric cabinet of continuous rolling forming equipment, wherein the continuous rolling forming equipment further comprises an oil pressure automatic discharging frame, a manual front shear, a feeding guide plate, a forming roller, a hydraulic cutting module and a hydraulic pump station, an intelligent algorithm module is arranged in the electric cabinet to optimize rolling paths and roller profile design parameters through a machine learning model based on historical production data and real-time monitoring parameters, and collect forming data of the stainless steel corrugated backboard with different thickness, wave distance and wave height in historical production, and the method comprises the following steps:

The front end of the stainless steel plate is cut by utilizing a manual front shear so as to adjust the initial state of the plate entering the subsequent process;

The method comprises the steps of guiding a cut stainless steel plate to a forming roller through a feeding guide plate, wherein the forming roller adopts a multi-section roller structure, the stainless steel plate sequentially passes through each section roller, and each section roller continuously rolls the stainless steel plate to enable the stainless steel plate to be processed into corrugated plates with a plurality of groups of wave crest structures;

when corrugated plate materials are rolled and formed, the plate materials are cut off according to preset sizes by utilizing a hydraulic cutting module to obtain the required stainless steel corrugated backboard, wherein a hydraulic pump station provides power for rolling actions of forming rollers and cutting actions of the hydraulic cutting module, the method further comprises the steps of utilizing a machine learning model to establish a mapping relation between rolling parameters and forming quality, and generating an optimal rolling path and a roller profile adjusting scheme through an intelligent algorithm module according to the material quality and target product parameters of the current stainless steel plate materials.

In some embodiments, the automatic feeding frame spreads and feeds the stainless steel plate through the oil pressure to enable the stainless steel plate to enter a forming process, and the automatic feeding frame comprises a tension control mechanism for monitoring feeding tension of the stainless steel plate in real time, when tension abnormality is detected, a hydraulic system automatically adjusts feeding speed and coil supporting force of the feeding frame to enable the stainless steel plate to spread flatly at constant tension and enter the subsequent process at constant speed, and wrinkling or stretching deformation of the plate due to uneven tension is avoided.

In some embodiments, the cutting of the front end of the stainless steel plate by the manual front scissors to adjust the initial state of the plate entering the subsequent process comprises determining the cutting position by a positioning scale of the manual front scissors, cutting irregular parts or burrs of the front end of the stainless steel plate, enabling the front end of the plate to form a notch which is flat and perpendicular to the length direction of the plate, and ensuring that the width of the cut plate is consistent with the width of a guide channel of the feeding guide plate.

In some embodiments, the method for guiding the cut stainless steel plate to the forming roller through the feeding guide plate comprises the steps that the feeding guide plate is provided with an adjustable guide groove, and the spacing between two side limiting plates of the guide groove is adjusted according to the actual width of the stainless steel plate, so that the plate is stably conveyed to the roller inlet of the forming roller along the center line of the guide groove, deviation or skew of the plate in the conveying process is avoided, and the accuracy of the roller position is ensured.

In some embodiments, the stainless steel plate sequentially passes through each section of rollers, each section of rollers continuously rolls the stainless steel plate, so that the stainless steel plate is processed into corrugated plates with a plurality of groups of wave crest structures, the method comprises the steps of sequentially arranging the sections of rollers of the forming rollers according to a preset rolling sequence, pre-pressing and forming the stainless steel plate by the front section of rollers to form a preliminary wave crest profile, carrying out fine pressing and forming on the plate by the rear section of rollers, gradually increasing the wave crest height and correcting the wave crest interval, and reducing the deformation quantity of single rolling by continuous progressive rolling of the sections of rollers, so as to avoid cracking or wrinkling of the plate due to stress concentration.

In some embodiments, the precise control of the wave distance and wave height structural parameters of the corrugated board is realized by adjusting the profile design of the rolling path and the rollers in the rolling process, and the method comprises the steps of pre-storing a plurality of groups of roller profile parameters and rolling path schemes by the electric cabinet, calling corresponding parameter schemes according to the design requirements of the target corrugated board, sending control instructions to a driving system of the forming roller, adjusting the transverse position or the rotation angle of each section of roller by the servo motor, and correcting the rolling path in real time to control the wave distance and wave height errors of the finally formed corrugated board within a preset range.

In some embodiments, the method for adjusting the thickness of the stainless steel plate to 0.5 mm-0.7 mm according to the use requirement comprises the steps of adjusting the vertical distance between adjacent rollers according to a target thickness parameter through a roller gap adjusting device of the forming roller, detecting the thickness of the plate in real time through a thickness sensor in the rolling process, and automatically fine-adjusting the roller gap through the electric cabinet when the detection value deviates from 0.5 mm-0.7 mm, so that the thickness of the formed corrugated plate meets the use requirement.

In some embodiments, after the corrugated board is rolled and formed, the board is cut off by utilizing a hydraulic cutting module according to a preset size to obtain the required stainless steel corrugated backboard, the corrugated board comprises a photoelectric sensor, wherein the hydraulic cutting module is provided with the photoelectric sensor for detecting the conveying length of the rolled and formed board in real time, when the board is conveyed to a preset cutting position, the electric cabinet sends a cutting instruction to the hydraulic pump station, the board is cut off by quickly pressing down a hydraulic driving cutting blade, and in the cutting process, the locating clamp of the hydraulic cutting module synchronously clamps the board, so that the board is prevented from displacement during cutting, and the cut is ensured to be flat and burr-free.

In some embodiments, the hydraulic pump station provides power for rolling action of forming rollers and cutting action of the hydraulic cutting module, and the hydraulic pump station comprises a pressure sensor and a flow regulating valve, and automatically regulates output pressure and flow according to cutting requirements of the forming rollers in a rolling stage and the hydraulic cutting module, provides lower pressure in a pre-pressing stage to ensure stable deformation of the plate, increases pressure in a fine pressing stage to ensure wave crest structure forming, and instantly improves pressure in a cutting stage to realize quick cutting, and improves equipment operation stability and forming precision through dynamic pressure control.

The invention relates to a manufacturing process of a stainless steel corrugated backboard for a photovoltaic module, in particular to a method for realizing high-precision forming of a stainless steel sheet through continuous rolling of a multi-section roller, belonging to the technical field of metal sheet forming processing (in particular to continuous rolling forming equipment and a control method).

Through continuous progressive rolling (front section pre-pressing and rear section coining) of the multi-section roller, single large deformation is decomposed into multiple small deformation, stress concentration in the stainless steel plate forming process is obviously reduced, cracking risk is reduced compared with that of the traditional stamping process, and yield is improved. Roller profile parameters and a rolling path scheme preset by an electric cabinet are utilized, roller positions and angles are adjusted in real time by combining a servo motor, wave distance and wave height errors are controlled within +/-0.5 mm, the thickness of the plate can be accurately adjusted within the range of 0.5 mm-0.7 mm, and the customized production requirements of photovoltaic modules with different strength requirements are met. The oil pressure automatic discharging frame, the feeding guide plate, the hydraulic cutting device and other equipment are adopted for linkage control, so that a full-flow automatic production line is formed, and the production cost is remarkably reduced. The back plate strength can be improved without additional reinforcing ribs, the high-strength photovoltaic module is suitable for batch manufacturing, and the back plate strength is particularly suitable for module production in coastal high wind pressure and high corrosion environments, and the service life of the photovoltaic module is effectively prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of steps of a continuous roll forming method of a stainless steel corrugated back plate according to an embodiment of the present application;

FIG. 2 is a schematic view of a continuous roll forming apparatus according to an embodiment of the present application;

Fig. 3 is a schematic block diagram of an electric cabinet according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.

It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish identical items or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It is to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

In order to solve the above problems, referring to fig. 1, fig. 1 is a schematic flow chart of a continuous roll forming method of a stainless steel corrugated back plate according to an embodiment of the application. The continuous rolling forming method of the stainless steel corrugated backboard can be realized by an electric cabinet of continuous rolling forming equipment shown in fig. 2, the continuous rolling forming equipment further comprises an oil pressure automatic discharging frame, manual front shears, a feeding guide plate, a forming roller, a hydraulic cutting module and a hydraulic pump station, an intelligent algorithm module is arranged in the electric cabinet to optimize rolling paths and roller profile design parameters through a machine learning model based on historical production data and real-time monitoring parameters, and the forming data of the stainless steel corrugated backboard with different thickness, wave distance and wave height in historical production are collected.

Specifically, as shown in fig. 1, the provided continuous roll forming method of the stainless steel corrugated back plate comprises steps S101 to S103. The details are as follows:

s101, unfolding and delivering the stainless steel plate through an oil pressure automatic discharging frame to enable the stainless steel plate to enter a forming process, and cutting the front end of the stainless steel plate by utilizing a manual front shear to adjust the initial state of the plate entering a subsequent process.

Specifically, the stainless steel coil is stably unfolded through the oil pressure automatic discharging frame, and the front end state of the plate is corrected through manual front cutting, so that qualified feeding conditions are provided for subsequent procedures.

The automatic hydraulic discharging frame is characterized in that the discharging control of the automatic hydraulic discharging frame adopts a hydraulic driving roller structure through a discharging frame main body, coiled materials are sleeved on the roller, and the discharging tension of the plate is monitored in real time through a tension control mechanism (comprising a pressure sensor and a speed encoder).

When the sensor detects that the tension fluctuation exceeds a preset threshold (such as +/-5N/mm ²), the electric cabinet sends a command to the hydraulic system, the rotation speed of the discharging roller (range: 0.5-2 m/min) and the jacking force of the coil supporting arm (range: 50-200N) are regulated through the proportional valve, the plate is ensured to be unfolded flatly under constant tension (target value: 80 +/-5N/mm < 2 >) and wrinkles (the occurrence rate of the wrinkles is less than or equal to 0.3%) or stretching deformation (the elongation rate is controlled within 1%) caused by uneven tension is avoided.

The manual front scissors are provided with high-precision positioning scales (scale precision is +/-0.1 mm), and the vertical distance between each scale and each shearing blade can be adjusted through a screw rod so as to adapt to different shearing length requirements. An operator drives a cutting edge (hardness HRC 55-60) to cut off the plate by using a handle to drive the zero position of the front end pair Ji Biaoche of the plate, and removes irregular parts (such as burrs and curled edges) at the front end, so that the flatness error of the cut is less than or equal to 0.2mm, and the perpendicularity error with the length direction of the plate is less than or equal to 0.5 degrees. After cutting, the width of the plate is confirmed through the scale marks, the width of the plate is ensured to be consistent with the width of a guide channel of the feeding guide plate (error + -0.5 mm), and subsequent conveying clamping caused by width deviation is avoided.

S102, guiding the cut stainless steel plate to a forming roller through a feeding guide plate, wherein the forming roller adopts a multi-section roller structure, the stainless steel plate sequentially passes through each section roller, each section roller continuously rolls the stainless steel plate to enable the stainless steel plate to be processed into corrugated plates with a plurality of groups of wave crest structures, in the rolling process, the precise control of wave distance and wave height structural parameters of the corrugated plates is realized by adjusting the contour design of a rolling path and the rollers, and the thickness of the stainless steel plate is adjusted to 0.5 mm-0.7 mm according to the use requirement.

Specifically, the adjustable feeding guide plate is used for accurately conveying the plate to the forming roller, the progressive rolling of the multi-section roller is used for realizing corrugated structure forming, and the wave distance, the wave height and the thickness parameters are dynamically controlled.

And the guiding control of the feeding guide plate is that the feeding guide plate is of a U-shaped groove structure, limit plates on two sides drive a screw nut mechanism to adjust the distance (the adjusting range is 300-1200 mm, the precision is +/-0.1 mm), and a polytetrafluoroethylene wear-resistant layer (the friction coefficient is less than or equal to 0.15) is adhered to the inner side of the limit plates. According to the actual width of the plate (detected in real time by a laser width measuring instrument, the precision is +/-0.2 mm), a target width value is input at an electric cabinet interface, and the system automatically adjusts the limiting plate to a corresponding position, so that the deviation between the center line of the plate and the center line of the guide groove is less than or equal to 1mm, and no deviation (the deviation occurrence rate is less than or equal to 0.1%) in the conveying process is ensured.

The multi-stage rolling process of the forming roller comprises the steps of designing a roller structure, wherein the forming roller comprises 5-8 sections of roller groups (such as 3 groups of pre-pressing sections and 5 groups of finish-pressing sections), the outline of the roller at the front section is in a shallow waveform (the wave height is 5-10 mm, the wave distance is 30-50 mm), the outline of the roller at the rear section is in a target waveform (the wave height is 15-30 mm, the wave distance is 50-100 mm), and the distance between adjacent roller groups can be adjusted through a guide rail (the adjusting precision is +/-0.5 mm).

The progressive rolling process comprises a pre-pressing stage, wherein a front-stage roller is used for carrying out preliminary forming on a plate at a lower linear speed (10-15 m/min) and a smaller rolling reduction (the single rolling reduction is less than or equal to 20% of the thickness of the plate), so that a crest embryonic form is formed, and meanwhile, the plate is prevented from slipping through anti-slip grains (the grain depth is 0.3mm and the spacing is 2 mm) on the surface of the roller. And in the coining stage, the linear speed of the roller at the rear section is gradually increased to 20m/min, the rolling reduction is increased to a target value, the transverse position (precision +/-0.05 mm) of the roller is regulated by a servo motor, the wave height is controlled by changing rollers with different outlines or regulating the inclination angle (regulating range 0-5 DEG) of the roller, the final wave distance error is less than or equal to +/-0.5 mm, and the wave height error is less than or equal to +/-1 mm.

The accurate control of thickness is equipped with gap adjustment device (ball screw + worm gear mechanism, adjustment accuracy + -0.01 mm) through the roller train, and initial clearance is preset according to target thickness (0.5 ~0.7mm, accuracy + -0.02 mm). When the plate passes through the roller, a beta-ray thickness sensor (precision +/-0.01 mm) arranged at the outlet of the roller detects the thickness in real time, and when the deviation between the detected value and a preset value exceeds +/-0.03 mm, the electric cabinet automatically fine-adjusts the gap of the roller to form closed-loop control.

S103, cutting the corrugated plate by utilizing a hydraulic cutting module according to a preset size after the corrugated plate is rolled and formed to obtain the required stainless steel corrugated backboard, wherein a hydraulic pump station provides power for rolling action of a forming roller and cutting action of the hydraulic cutting module, and the method further comprises the steps of establishing a mapping relation between rolling parameters and forming quality by utilizing a machine learning model, and generating an optimal rolling path and a roller profile adjustment scheme through an intelligent algorithm module according to the material of the current stainless steel plate and target product parameters.

And cutting the formed corrugated board to a fixed length through a hydraulic cutting module, wherein a hydraulic pump station provides dynamic pressure support for rolling and cutting actions.

And the fixed length cutting of the hydraulic cutting module is realized by integrating photoelectric sensors (detection precision is +/-1 mm) with the cutting module, and the hydraulic cutting module is arranged above the conveying track to monitor the conveying length of the plate in real time (the front end after cutting in the step S101 is taken as a reference zero point). When the plate is conveyed to a preset cutting position (error +/-2 mm), the electric cabinet sends a cutting instruction to the hydraulic pump station, the hydraulic system drives the cutting blade (the cutting edge roughness Ra is less than or equal to 0.8 mu m) to press downwards at the speed of 50mm/s, and meanwhile, the positioning clamps (pneumatic clamping, clamping force 500-1000N) synchronously clamp two sides of the plate, so that no displacement (displacement amount is less than or equal to 0.1 mm) is ensured during cutting. The cutting blade adopts detachable design, changes different blade angles (0.5 mm thickness corresponds 30 degree angle of blade, 0.7mm corresponds 45 degree angle of blade) according to panel thickness, and incision burr height is less than or equal to 0.1mm, and flatness error is less than or equal to 0.3mm.

Dynamic pressure control of a hydraulic pump station, namely, arranging a plunger pump (flow range is 5-50L/min) and a proportional pressure valve (control precision +/-1% FS) in the pump station, and automatically switching pressure modes according to different process requirements, namely, outputting pressure of 6-8 MPa in a pre-pressing stage, ensuring stable deformation of a plate, and avoiding surface scratch (scratch incidence rate is less than or equal to 0.2%) caused by overlarge pressure. And in the coining stage, the pressure is increased to 10-15 MPa, the full formation of the wave crest structure is ensured, and the contact stress of the roller and the plate is uniformly distributed (the deviation is less than or equal to 5%). And in the cutting stage, high pressure of 20MPa is instantaneously output, so that the blade can cut off the plate rapidly, the cutting time is less than or equal to 0.2 seconds, and the deformation of the plate is reduced. The pressure sensor (precision + -0.5% FS) feeds back the system pressure in real time, and when the pressure fluctuation exceeds + -5%, the electric cabinet automatically adjusts the opening of the proportional valve, so that the running stability of the equipment is ensured.

The intelligent algorithm module is arranged in the electric cabinet, rolling parameters are optimized based on historical data and machine learning, intelligent and accurate control is achieved, and trial-and-error cost is reduced.

The data acquisition and storage are that 30+ dimension data are acquired in real time by a system, wherein the dimension data comprise plate parameters including material quality (304/316L), thickness (0.5-0.7 mm) and yield strength (200-300 MPa), process parameters including roller pressure (6-20 MPa), rolling speed (10-25 m/min), roller gap of each section (0.4-0.8 mm), and quality data including wave crest defect rate (cracking/fold), size deviation (wave distance/wave height/thickness) and production efficiency (piece/hour). Historical data is stored in an SQL database, and is used for supporting search according to time/product model/defect type, and the data retention period is 3 years.

The machine learning model is constructed by adopting a gradient lifting tree (Gradient Boosting Tree) algorithm to construct a prediction model, wherein an input layer is made of a plate material, the thickness and the target wave distance/wave height, and an output layer is made of adjusting parameters such as transverse displacement, angle and gap of each section of roller. The model training process comprises the steps of data preprocessing, namely performing single-heat coding on defect rate data, normalizing continuous variables to 0,1, cross-verifying, namely evaluating the generalization capability of the model by adopting 5-fold cross-verifying, wherein an objective function is Root Mean Square Error (RMSE), the required wave distance is less than or equal to 0.6mm for predicting the RMSE, the wave height is less than or equal to 1.2mm, model updating, namely automatically introducing the latest 1000 production data increment training every week, and triggering retraining when the online prediction error exceeds a preset threshold value for 3 times continuously.

After the real-time intelligent control is performed by inputting target parameters (such as material 304, thickness 0.6mm, wave distance 80mm and wave height 20 mm) through an operator, an intelligent algorithm module generates an optimal adjustment scheme within 2 seconds, wherein the optimal adjustment scheme comprises the steps of pre-pressing each roller angle (1 st section 5 degree, 2 nd section 7 degree and 3 rd section 9 degree), transversely spacing the rollers of the fine-pressing section (4 th section 79.5mm, 5 th section 80.2mm and 6 th section 80.0 mm), and compensating the roller gap (0.61 mm, considering material rebound rate 3%).

After the scheme is confirmed by an operator (manual fine adjustment is supported), the scheme is sent to a driving system, compared with the traditional manual error test, the parameter debugging time is shortened from 30 minutes to 5 minutes, and the qualification rate of the first new product is improved.

The tension closed-loop control of the stainless steel plate material delivering process is realized through the tension control mechanism of the oil pressure automatic discharging frame, the smooth conveying of the plate material with constant tension is ensured, and the wrinkling or stretching deformation caused by tension fluctuation is avoided.

The tension control mechanism is configured by hardware, wherein the tension control mechanism integrates a high-precision pressure sensor (measuring range is 0-200N/mm ², precision is +/-0.5% FS) and a speed encoder (resolution is 0.1 mm/s), the pressure sensor is arranged at the connecting end of a coil supporting arm of a discharging frame and a roller, transverse tension is monitored in real time when a plate is discharged, and the speed encoder is coaxially arranged on a driving shaft of the discharging roller, so that the rotating speed of the roller is collected in real time.

And (3) tension abnormality detection and feedback, namely presetting a tension threshold range (a target value of 80N/mm ², allowing fluctuation to be +/-5N/mm ²) by the electric cabinet, and judging that the tension is abnormal (such as tension deformation caused by over-high tension or fold caused by over-low tension) when the detection value of the pressure sensor exceeds the threshold. The system transmits tension data to the electric cabinet in real time through a Modbus bus, and triggers an automatic adjusting program.

The hydraulic system dynamic adjustment mechanism is that the discharging roller is driven by a hydraulic motor (power 5kW, rotating speed range is 0-30 rpm), and the rotating speed of the roller is linearly related to the discharging speed (1 rpm corresponds to 0.2m/min discharging speed). When the tension is too high, the electric cabinet sends an instruction to the hydraulic proportional valve, the oil supply flow of the hydraulic motor is reduced, the rotating speed of the roller is reduced (the adjusting precision is 0.1 rpm), the discharging speed is slowed down, and when the tension is too low, the oil supply flow is increased to increase the rotating speed. The coil supporting arm is provided with a hydraulic telescopic rod (stroke is 0-100 mm, thrust range is 50-200N), and tension deviation fed back by the pressure sensor is used for synchronously adjusting the supporting arm to push up the coil, wherein the pushing up force is increased when the tension is insufficient (the step length is adjusted by 10N each time), and the pushing up force is reduced when the tension is too large, so that tension fluctuation in the plate feeding process is controlled within +/-3N/mm ².

A visual detection camera (with the resolution ratio of 1280 multiplied by 720 and the frame rate of 30 fps) is arranged at the outlet of the discharging frame, the surface of the plate is photographed in real time, and the wrinkles are detected through an image recognition algorithm (an alarm is triggered when the width of the wrinkles is more than or equal to 2 mm). If the wrinkles are detected continuously for 3 times, the system is automatically stopped and prompts manual intervention, so that unqualified plates are prevented from entering the subsequent process.

The cutting position is accurately determined by using the positioning scale of the manual front shear, the irregular part at the front end of the plate is cut off, a smooth and vertical notch is formed, the width of the cut plate is ensured to be matched with the feeding guide plate, and conditions are provided for stable feeding.

The manual front shear body is a gantry frame, the shearing blade is made of high-hardness alloy steel (hardness HRC 58-62), and the cutting edge is subjected to mirror surface treatment (roughness Ra is less than or equal to 0.4 mu m), so that the cut is smooth and burr-free. The positioning staff gauge is fixed on a workbench in front of the cutting edge, the scale precision of the staff gauge is 0.1mm, and the zero point of the staff gauge is vertically aligned with the cutting edge of the cutting edge.

The operator places the panel front end on the workstation, promotes the panel and makes the front end surpass cutting edge preset length (set according to the technological requirement, like 50 mm), confirms through the scale mark and cuts out the position. The adjustable positioning baffle is arranged below the scale, and the adjustable positioning baffle transversely moves through a screw and nut mechanism (the screw pitch is 1mm and the adjustment precision is 0.1 mm), so that the adjustable positioning baffle adapts to the alignment requirements of different plate widths and ensures that the edges of the plates are parallel to scale marks of the scale (the parallelism error is less than or equal to 0.2 degrees).

When cutting, an operator presses down the handle by hands, drives the cutting edge to vertically press down (the stroke is 50mm, the pressing speed is 20 mm/s) through the connecting rod mechanism, and the gap between the cutting edge and the workbench is accurately adjusted through the gasket set (the gap value is equal to the thickness of the plate, and the error is +/-0.05 mm), so that the plate is prevented from being torn due to overlarge gap. After cutting, a square (precision 0.1 mm) is used for detecting the perpendicularity between the cut and the length direction of the plate, the perpendicularity error is required to be less than or equal to 0.5 degrees, the width of the plate is measured through a vernier caliper (precision 0.02 mm), the width of the plate is compared with the width of a guide channel of a feeding guide plate, the allowable error is +/-0.5 mm, and if the allowable error exceeds the allowable error, the second cutting is performed.

The manual front scissors are provided with infrared hand protection devices, and when hands enter the working area of the scissors blades, the handles are automatically locked, so that misoperation is prevented. Cut the waste material and concentrate the recovery through the collecting vat of workstation below, waste material length control is 50~100mm, avoids extravagant.

The width adaptation and the guide conveying are carried out on the cut plates through the adjustable guide groove of the feeding guide plate, so that the plates can be ensured to stably enter the forming roller along the central line, and the influence of conveying offset on the rolling precision is avoided.

The feeding guide plate structure and the adjusting system are that the feeding guide plate is of a T-shaped structure, a main body frame is made of aluminum alloy sections, limit plates on two sides drive a screw nut mechanism (screw pitch 5mm and lead precision 0.02 mm/m) to transversely move through a servo motor (power 100W and positioning precision 0.05 mm), and anti-slip rubber strips (hardness Shore A70 and friction coefficient more than or equal to 0.3) are adhered to the inner sides of the limit plates to prevent the plates from sliding.

After cutting, the plate is firstly subjected to a laser width measuring instrument (measuring range is 0-1500 mm, precision is +/-0.2 mm), the width measuring instrument is arranged above an inlet of a feeding guide plate, and the width data of the plate are collected in real time and transmitted to an electric cabinet. According to the preset width of the guide groove (target value=plate width+2mm, a gap of 1mm is reserved on one side), the electric cabinet automatically calculates the moving distance of the limiting plate and sends a command to the servo motor, and the adjusting time is less than or equal to 5 seconds.

Two pairs of centering sensors (infrared correlation type, detection accuracy + -0.5 mm) are arranged at the bottom of the guide groove and are respectively positioned at 1/4 and 3/4 positions of the width direction of the plate, and when signals of the plate edge triggering sensors are inconsistent, the plate edge triggering sensors are judged to be offset (the allowable deviation is less than or equal to 1 mm). If the deviation exceeds the threshold value, the electric cabinet sends a command to a deviation rectifying cylinder (the stroke is 50mm, the response time is less than or equal to 0.1 second) of the feeding guide plate, and the position of the plate is finely adjusted through the lateral push plate, so that the coincidence (the deviation is less than or equal to 0.5 mm) of the center line of the plate and the center line of the guide groove is ensured. The contact surface of the limiting plate and the plate is coated with a molybdenum disulfide lubricating coating (thickness is 5-10 mu m), the lubricating period is 8 hours/time, and the conveying friction resistance (friction resistance is less than or equal to 5N/m) is reduced by timing spraying of an automatic lubricating device (a positive displacement distributor and oil output amount is 0.1 mL/time), so that surface scratches of the plate caused by overlarge friction are avoided.

The multistage roller of the forming roller gradually forms a corrugated structure through progressive rolling of prepressing and coining, reduces single deformation quantity to reduce stress concentration, and realizes high-precision wave crest parameter control.

The forming roller is formed by connecting 7 sections roller sets in series (3 sections of pre-pressing rollers and 4 sections of finish-pressing rollers), each section roller set comprises an upper roller and a lower roller (the diameter is 200mm, the surface hardness is HRC 60-65), the contour of the pre-pressing rollers is shallow trapezoid waves (the wave height is 8mm, the wave distance is 40mm, the vertex angle is 120 degrees), the contour of the finish-pressing rollers is target arc waves (the wave height is 25mm, the wave distance is 80mm, the arc radius is 15 mm), and the distance between adjacent roller sets can be adjusted through a guide rail sliding block mechanism (the adjusting range is 50-150 mm, and the precision is +/-0.5 mm).

The linear speed of the roller in the pre-pressing stage is controlled to be 12-15 m/min, the single pressing amount is 15-20% of the thickness of the plate (for example, 0.12mm is pressed by a plate with the thickness of 0.6mm in a single way), and the upper roller applies pressure of 6-8 MPa (real-time monitoring through a pressure sensor, and the precision is +/-0.5 MPa). The first section of pre-pressing roller forms an initial wave crest contour (wave height is 5 mm), the second section is lifted to 8mm, the third section corrects the wave distance to 45mm, the initial wave crest form is detected through a laser contour scanner (precision is +/-0.3 mm) after each section of roller is rolled, and if the wave height deviation exceeds +/-1 mm, the rolling reduction of the roller of the next section is automatically adjusted.

The linear speed of the roller in the coining stage is gradually increased to 20m/min, the rolling reduction is increased to 0.05-0.1 mm for a single time, and the pressure of the upper roller is increased to 10-15 MPa. The fourth section of coining roller increases the wave height to 15mm, the fifth section of coining roller is 20mm, the sixth section of coining roller is 25mm, and the seventh section corrects the wave distance to a target value (error + -0.5 mm) through a transverse moving roller (driven by a servo motor, with displacement precision + -0.05 mm). In the process of coining, a temperature sensor (precision +/-1 ℃) on the surface of the roller monitors the temperature rise of the roller in real time, and when the temperature exceeds 60 ℃, a circulating cooling water system (flow 5L/min) is started to prevent the surface of the plate from being oxidized due to the overheating of the roller.

And a strain gauge sensor (resolution ratio 1 mu epsilon) is arranged at the outlet of each section of roller, the strain distribution on the surface of the plate is detected, and when the local strain exceeds 80% of the yield strength of the stainless steel material (namely, the yield strength of the stainless steel material is more than or equal to 240MPa and 300 MPa), the electric cabinet automatically reduces the pressing speed (the amplitude reduction is 10%) of the subsequent roller, and the stress is released in stages. After finishing the finish of the finish pressing, scanning the corrugated structure by a machine vision system (precision + -0.2 mm), detecting the height of the wave peak, the wave distance and the surface crack (the crack is judged to be unqualified when the crack length is more than or equal to 1 mm), and controlling the crack rate to be less than 0.5%.

The roller parameters and the rolling path scheme pre-stored by the electric cabinet are combined with the servo motor to dynamically adjust the position/angle of the roller, so that the accurate control of the wave distance and the wave height of the corrugated board is realized, and the error is controlled within a preset range.

The built-in database of the electric cabinet stores more than 200 groups of roller profile parameters (including wave height 10-30mm, wave distance 40-120mm, roller radian R10-R30mm and the like) and rolling path schemes (classified according to the thickness of the plate of 0.5mm/0.6mm/0.7 mm), and each group of schemes comprises transverse displacement amount (+ -5 mm, precision (+ -0.05 mm) of each section of roller, rotation angle (0-8 degrees, precision (+ -0.1 degrees) and linear speed matching relation (10-25 m/min, step length 0.5 m/min). An operator inputs a target wave distance (such as 80 mm), a wave height (such as 20 mm) and a plate thickness (such as 0.6 mm) through an HMI interface, and the system automatically matches an optimal historical scheme or generates an initial scheme.

The upper roller of each section of roller drives a transverse screw rod sliding table (stroke + -20 mm and positioning precision + -0.02 mm) through a servo motor (power 2kW, encoder resolution 24 bits), so that fine adjustment of the transverse position of the roller is realized, the roller is used for correcting wave distance (wave distance=adjacent wave crest center distance and is positively correlated with the transverse distance of the roller), the lower roller is provided with an angle adjusting mechanism (worm gear transmission, angle precision + -0.05 DEG), and the wave height is adjusted by changing the inclination angle of the roller (the larger the angle is, the wave height increasing amount is 0.5mm/°).

In the rolling process, a 3D laser profiler (scanning frequency 100Hz, precision + -0.2 mm) arranged at the outlet of the forming roller collects wave crest form data of the corrugated board in real time and transmits the wave crest form data to an electric cabinet for comparison with target parameters. When the wave distance error is +/-0.8 mm or the wave height error is +/-1.2 mm, the system triggers automatic correction, wherein the wave distance error is that the transverse distance (single adjustment amount is less than or equal to 0.3 mm) of the rear section 2 groups of rollers is synchronously adjusted through a servo motor and gradually corrected to a target value for 2-3 times, and the wave height error is that the correction is completed in 1 plate length period by adjusting the inclination angle (single adjustment is less than or equal to 0.5 DEG) of the corresponding fine-pressed section roller and combining with the fine adjustment of the rolling reduction (+ -0.03 mm). The final wave distance error is less than or equal to +/-0.5 mm, the wave height error is less than or equal to +/-1 mm, and the high-precision assembly requirement of the back plate of the photovoltaic module is met.

The thickness of the stainless steel plate is accurately regulated to 0.5-0.7mm through closed-loop control of a roller gap regulating device and a thickness sensor, and the thickness deviation is corrected in real time.

The roller gap adjusting device is characterized in that an upper roller set and a lower roller set of a forming roller are connected through a ball screw pair (lead 5mm, precision grade ISO 3 grade), synchronous driving (power 1.5kW, position feedback precision +/-0.01 mm) of a double servo motor is provided, and the vertical gap range can be adjusted to 0.4-0.8mm (covering the allowance of target thickness 0.5-0.7mm +/-0.1 mm). The initial gap is preset according to the target thickness (for example, the thickness of 0.6mm corresponds to the initial gap of 0.62mm, and the compensation amount of 20 μm is reserved).

Thickness real-time detection and feedback, namely, a beta-ray thickness sensor (model: mahr FT130, measuring range 0.1-2mm, precision + -0.01 mm) is arranged at a rolling outlet, and thickness data are acquired every 0.5 seconds. When the deviation between the detection value and the target thickness is + -0.03 mm (for example, the target thickness is 0.5mm, the actual measurement is 0.54 mm), the electric cabinet is regulated according to the following logic that the deviation is + -0.05 mm, the roller clearance is automatically finely regulated (the single regulating quantity is 0.01 mm), the thickness is confirmed to be stable after the regulation, the deviation is more than or equal to + -0.05 mm after 3 plate periods (about 15 seconds), the early warning is triggered and the rolling is stopped, the manual detection of the thickness of the plate material is prompted (the thickness fluctuation of the material is qualified within + -0.02 mm), and the clearance is recalibrated after the abnormality of the material is eliminated.

The displacement sensors (precision +/-0.005 mm) are arranged at the two ends of the roller, the consistency of the two ends of the roller is monitored in real time, when the difference between the two ends is more than 0.02mm, the single-side screw rod is independently regulated through the servo motor, the parallelism error of the roller is ensured to be less than or equal to 0.01mm/m, and uneven thickness (the thickness of the same plate is extremely less than or equal to 0.02 mm) caused by the inclination of the roller is avoided.

The photoelectric sensor of the hydraulic cutting module is used for positioning, hydraulic driving cutting and clamping are matched, fixed-length cutting is achieved, and the quality of the cut is guaranteed. And (3) detecting and triggering a cutting position, namely installing an opposite-type photoelectric sensor (the detection distance is 5m, and the response time is less than or equal to 10 mu S) at the inlet of the hydraulic cutting module, taking the front end of the plate cut in the step S101 as a zero point, and accumulating the conveying length through an encoder (installed on a conveying roll shaft and with the resolution of 0.1 mm). When the accumulated value reaches the preset cutting-off length (such as 2000mm plus or minus 2 mm), the sensor sends a pulse signal to the electric cabinet, and a cutting-off instruction is triggered within 0.1 second. The hydraulic cutting executing mechanism is that a cutting blade is made of alloy steel (hardness HRC 60), the cutting edge angle is matched according to the thickness of a plate (0.5 mm-30 degrees, 0.7 mm-45 degrees), and the cutting blade is driven by a hydraulic cylinder (the cylinder diameter is 80mm, the stroke is 100mm, and the speed is 50-100mm/s adjustable). When the cutting tool is cut off, the hydraulic system firstly supplies air to the positioning clamp (double-sided pneumatic clamping jaw, clamping force is 800-1500N, clamping response time is less than or equal to 0.05 seconds), the clamping jaw synchronously clamps two sides of a plate (100 mm away from a notch), then the blade is driven to press down, cutting time is less than or equal to 0.3 seconds, flatness error of the notch is less than or equal to 0.3mm, and burr height is less than or equal to 0.1mm. And (3) quality detection after cutting, namely conveying the cut back plate to a detection station through a belt, photographing by a visual camera (resolution 2048 multiplied by 1536) arranged above to detect the verticality (the allowable deviation is less than or equal to 0.5 DEG) of the cut and the burr defect, and automatically separating unqualified products by a removing cylinder (the stroke is 50mm, the response time is less than or equal to 0.2 seconds), wherein the defect rate is controlled below 0.3%.

In some embodiments, the hydraulic pump station provides power for rolling action of forming rollers and cutting action of the hydraulic cutting module, and the hydraulic pump station comprises a pressure sensor and a flow regulating valve, and automatically regulates output pressure and flow according to cutting requirements of the forming rollers in a rolling stage and the hydraulic cutting module, provides lower pressure in a pre-pressing stage to ensure stable deformation of the plate, increases pressure in a fine pressing stage to ensure wave crest structure forming, and instantly improves pressure in a cutting stage to realize quick cutting, and improves equipment operation stability and forming precision through dynamic pressure control. The hydraulic pump station dynamically matches the pressure/flow requirements of each stage of rolling and cutting action through the pressure sensor and the flow regulating valve, so that the stability of the equipment is improved. The hardware configuration of the hydraulic pump station is that the pump station adopts a variable plunger pump (the maximum flow is 60L/min, the pressure range is 0-25 MPa), a proportional pressure valve (the control precision is +/-1 percent FS) and an electromagnetic flow valve (the precision is +/-2 percent FS) are integrated, and the system pressure is fed back in real time by matching with a pressure sensor (the measuring range is 0-30MPa, the precision is +/-0.5 percent FS). Staged pressure flow control is shown in the following table:

The pump station is provided with an overflow valve (opening pressure 25 MPa) and a temperature sensor (alarm threshold 65 ℃), when the pressure exceeds 23MPa or the oil temperature exceeds 60 ℃, the system automatically reduces 10% of output power and starts a cooling fan (air quantity 1.5m ³/min), the temperature of hydraulic oil is ensured to be stabilized at 40-55 ℃, and the service life of a sealing element is prolonged (the replacement period is more than or equal to 1 year).

The embodiment of the application also provides a continuous roll forming device of the stainless steel corrugated backboard. The continuous roll forming device of the stainless steel corrugated backboard is used for executing the steps of the continuous roll forming method of the stainless steel corrugated backboard shown in the above embodiments. The continuous roll forming device of the stainless steel corrugated backboard can be a single server or a server cluster, or the continuous roll forming device of the stainless steel corrugated backboard can be a terminal, and the terminal can be a handheld terminal, a notebook computer, a wearable device or a robot, etc.

The continuous roll forming device of the stainless steel corrugated backboard comprises:

the state adjusting unit is used for expanding and delivering the stainless steel plate through the oil pressure automatic discharging frame to enable the stainless steel plate to enter a forming process;

The thickness adjusting unit is used for guiding the cut stainless steel plate to a forming roller through the feeding guide plate, the forming roller adopts a multi-section roller structure, the stainless steel plate sequentially passes through each section roller, and each section roller continuously rolls the stainless steel plate to enable the stainless steel plate to be processed into corrugated plates with a plurality of groups of wave crest structures;

The backboard obtaining unit is used for cutting the corrugated board by utilizing the hydraulic cutting module according to the preset size after the corrugated board is rolled and formed to obtain the needed stainless steel corrugated backboard, wherein the hydraulic pump station provides power for the rolling action of the forming roller and the cutting action of the hydraulic cutting module, the backboard obtaining unit further comprises the steps of utilizing the machine learning model to establish the mapping relation between the rolling parameters and the forming quality, and generating an optimal rolling path and a roller profile adjusting scheme through the intelligent algorithm module according to the material and target product parameters of the current stainless steel board.

It should be noted that, for convenience and brevity of description, the specific working process of the continuous roll forming device and each module of the stainless steel corrugated back plate described above may refer to the corresponding process in the continuous roll forming method embodiment of the stainless steel corrugated back plate described in each embodiment, and will not be repeated here.

The continuous roll forming method of a stainless steel corrugated back sheet described above may be implemented in the form of a computer program that can be run on a provided device.

Referring to fig. 3, fig. 3 is a schematic block diagram of an electric cabinet according to an embodiment of the present application. The electric cabinet comprises a processor, a memory and a network interface which are connected through a device bus, wherein the memory can comprise a storage medium and an internal memory.

The storage medium may store an operating device and a computer program. The computer program comprises program instructions which, when executed, cause the processor to perform any one of the continuous roll forming methods of stainless steel corrugated back sheets.

The processor is used for providing computing and control capability and supporting the operation of the whole electric cabinet.

The internal memory provides an environment for the execution of a computer program in the non-volatile storage medium that, when executed by the processor, causes the processor to perform any one of the continuous roll forming methods of the stainless steel corrugated back sheet.

The network interface is used for network communication such as transmitting assigned tasks and the like. It will be appreciated by those skilled in the art that the structure shown in fig. 3 is merely a block diagram of a portion of the structure associated with the present application and is not intended to limit the terminal to which the present application is applied, and that a particular electric cabinet may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

It should be appreciated that the Processor may be a central processing unit (Central Processing Unit, CPU), it may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Wherein in one embodiment the processor is configured to run a computer program stored in the memory to implement the steps of:

It should be noted that, for convenience and brevity of description, the specific working process of the processor described above may refer to the corresponding process in the continuous roll forming method embodiment of the stainless steel corrugated back plate described in each embodiment, and will not be repeated here.

The present application also provides a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to implement the steps of the continuous roll forming method of a stainless steel corrugated back sheet according to the first aspect above.

The computer readable storage medium may be an internal storage unit of the electric cabinet according to the foregoing embodiment, for example, a hard disk or a memory of the electric cabinet. The computer readable storage medium may also be an external storage device of the electric cabinet, such as a plug-in hard disk, a smart memory card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, a flash memory card (FLASH CARD) or the like, which are provided on the electric cabinet.

While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A continuous rolling forming method of a stainless steel corrugated backboard is characterized by being applied to an electric cabinet of continuous rolling forming equipment, the continuous rolling forming equipment further comprises an oil pressure automatic discharging frame, manual front shears, a feeding guide plate, a forming roller, a hydraulic cutting module and a hydraulic pump station, an intelligent algorithm module is arranged in the electric cabinet to optimize rolling paths and roller profile design parameters through a machine learning model based on historical production data and real-time monitoring parameters, and the forming data of the stainless steel corrugated backboard with different thicknesses, wave distances and wave heights in historical production are collected, and the method comprises the following steps:

2. The method of claim 1, wherein the unwinding and feeding the stainless steel sheet by the oil pressure automatic discharging frame, the stainless steel sheet being subjected to a forming process, comprises:

the tension control mechanism of the oil pressure automatic discharging frame is used for monitoring the discharging tension of the stainless steel plate in real time, when tension abnormality is detected, the discharging speed of the discharging frame and the coil supporting force are automatically adjusted through the hydraulic system, so that the stainless steel plate is flatly unfolded at constant tension and enters the subsequent working procedure at constant speed, and the plate is prevented from being wrinkled or stretched and deformed due to uneven tension.

3. The method of claim 1, wherein the cutting the front end of the stainless steel sheet with the manual front shears to adjust the starting state of the sheet into the subsequent process comprises:

And determining a cutting position through the positioning scale of the manual front shear, cutting the irregular part or the burr at the front end of the stainless steel plate, enabling the front end of the plate to form a cut which is flat and vertical to the length direction of the plate, and ensuring that the width of the cut plate is consistent with the width of the guide channel of the feeding guide plate.

4. The method of claim 1, wherein the guiding the cut stainless steel sheet to the forming roll by the feed guide comprises:

The feeding guide plate is provided with an adjustable guide groove, the spacing between two side limiting plates of the guide groove is adjusted according to the actual width of the stainless steel plate, so that the plate is stably conveyed to a roll inlet of the forming roll along the center line of the guide groove, the plate is prevented from shifting or skewing in the conveying process, and the accuracy of the roll position is ensured.

5. The method of claim 1, wherein the stainless steel sheet passes through each section of rollers in turn, each section of rollers continuously rolling the stainless steel sheet to form a corrugated sheet having a multi-set peak structure, comprising:

The multi-section rollers of the forming roller are sequentially arranged according to a preset rolling sequence, the front-section rollers are used for pre-pressing and forming stainless steel plates to form a preliminary wave crest profile, the rear-section rollers are used for carrying out fine pressing and forming on the plates, the wave crest height is gradually increased, the wave crest interval is corrected, the continuous progressive rolling of the multi-section rollers is used for reducing the deformation of single rolling, and cracking or wrinkling of the plates due to stress concentration is avoided.

6. The method according to claim 1, wherein the precise control of the wave pitch and wave height structural parameters of the corrugated board is achieved by adjusting the profile design of the rolling path and the roller during the rolling process, comprising:

The electric cabinet pre-stores a plurality of groups of roller profile parameters and rolling path schemes, invokes corresponding parameter schemes according to design requirements of the target corrugated plate, sends control instructions to a driving system of the forming roller, adjusts transverse positions or rotation angles of rollers of each section through a servo motor, and corrects the rolling path in real time so that wave distance and wave height errors of the finally formed corrugated plate are controlled within a preset range.

7. The method according to claim 1, wherein the adjusting the thickness of the stainless steel plate to 0.5 mm-0.7 mm according to the use requirement comprises:

Through the running roller clearance adjusting device of forming roller, according to the perpendicular interval between the adjacent running roller of target thickness parameter adjustment, detect panel thickness in real time through thickness sensor simultaneously at the roll-in-process, when the detected value has the deviation with 0.5mm ~0.7mm, by the automatic fine setting running roller clearance of electric cabinet, make corrugated panel thickness after the shaping satisfy the user demand.

8. The method according to claim 1, wherein after the corrugated board is roll-formed, the board is cut according to a preset size by using a hydraulic cutting module to obtain a required stainless steel corrugated backboard, comprising:

The hydraulic cutting module is provided with a photoelectric sensor, the conveying length of the rolled plate is detected in real time, when the plate is conveyed to a preset cutting position, the electric cabinet sends a cutting instruction to the hydraulic pump station, the cutting blade is driven by hydraulic pressure to be pressed down rapidly to cut the plate, and in the cutting process, the positioning clamp of the hydraulic cutting module clamps the plate synchronously, so that the plate is prevented from displacement during cutting, and the cut is smooth and burr-free.

9. The method of claim 1, wherein the hydraulic pump station powers the rolling action of the forming rolls and the severing action of the hydraulic severing module, comprising:

The hydraulic pump station is provided with a pressure sensor and a flow regulating valve, and automatically regulates output pressure and flow according to the rolling stage of the forming roller and the cutting requirement of the hydraulic cutting module, provides lower pressure in the pre-pressing stage to ensure stable deformation of the plate, increases pressure in the coining stage to ensure wave crest structure forming, and instantly increases pressure in the cutting stage to realize quick cutting, and improves equipment operation stability and forming precision through dynamic pressure control.