Roll gap deviation control method, device, computer and readable storage medium

Abstract

A roll gap deviation control method, device, computer and readable storage medium belong to the field of metallurgical technology. The method includes: when it is detected that the strip steel clamped by two pinch rollers in the pinch device is deviated, the current spacing difference between the first roll gap spacing and the second roll gap spacing is obtained, and when the current spacing difference is greater than the preset spacing difference lower limit, according to the current spacing difference, the output pressure of the pressing mechanism is adjusted by the target adjustment method to reduce the spacing difference between the first roll gap spacing and the second roll gap spacing. When the spacing difference between the first roll gap spacing and the second roll gap spacing of the two pinch rollers is large, the output pressure of the pressing mechanism is adjusted by the spacing difference to reduce the roll gap deviation. When the roll gap deviation is reduced, the strip steel deviation caused by the roll gap deviation can be solved.

Description

Technical Field

[0001] The present application belongs to the field of metallurgical technology, and in particular, relates to a roll gap deviation control method, device, computer and readable storage medium. Background Art

[0002] In the production process of strip steel, the strip steel formed by the rolling mill needs to be rolled into steel coils by the coiler for easy storage and transportation of the strip steel. Usually, a pinching device is arranged before the coiler, and the pinching device includes two pinching rollers arranged opposite to each other. The pinching rollers pinch the strip steel and send it to the coiler, and the coiler rolls the strip steel into steel coils.

[0003] In the process of pinching the strip, there will be a gap difference between the first roll gap between the driving sides of the two pinch rollers and the second roll gap between the operating sides of the two pinch rollers. When the gap difference is large, the strip fed into the coiler will deviate. Summary of the invention

[0004] The purpose of the present application is to provide a roll gap deviation control method, device, computer and readable storage medium, aiming to solve the problem of strip deviation caused by a large roll gap deviation between two pinch rollers in a pinch device.

[0005] A first aspect of an embodiment of the present application provides a roller gap deviation control method, which is applied to a pinching device, wherein the pinching device includes two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the transmission side of one of the pinching rollers, respectively; the pressing mechanism is used to output pressure to the connected pinching roller to adjust the roller gap distance between the two pinching rollers; the method includes:

[0006] When the strip steel pinched by the two pinch rollers deviates, the current gap difference between the first roller gap and the second roller gap is obtained; the first roller gap is the gap between the transmission sides of the two pinch rollers, and the second roller gap is the gap between the operating sides of the two pinch rollers;

[0007] When the current gap difference is greater than a preset gap difference lower limit, the output pressure of the pressing mechanism is adjusted in a target adjustment manner according to the current gap difference to reduce the gap difference between the first roller gap gap and the second roller gap gap.

[0008] The second aspect of the embodiment of the present application provides a roller gap deviation control device, which is arranged in a pinching device.

[0009] The pinching device comprises two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the driving side of one of the pinching rollers respectively; the pressing mechanism is used to output pressure to the connected pinching roller to adjust the roller gap distance between the two pinching rollers; the device comprises:

[0010] An acquisition module, used for acquiring a current gap difference between a first roll gap and a second roll gap when the strip steel pinched by the two pinch rollers deviates; the first roll gap is the gap between the transmission sides of the two pinch rollers, and the second roll gap is the gap between the operating sides of the two pinch rollers;

[0011] The adjustment module is used to adjust the output pressure of the pressing mechanism through a target adjustment method according to the current spacing difference when the current spacing difference is greater than a preset spacing difference lower limit, so as to reduce the spacing difference between the first roller gap spacing and the second roller gap spacing.

[0012] A third aspect of an embodiment of the present application provides a computer, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in the first aspect when executing the computer program.

[0013] A fourth aspect of an embodiment of the present application provides a readable storage medium, wherein the readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: when the deviation of the strip steel clamped by the two pinch rollers in the pinch device is detected, the current spacing difference between the first roller gap spacing and the second roller gap spacing is obtained, and when the current spacing difference is greater than the preset spacing difference lower limit, the output pressure of the pressing mechanism is adjusted by the target adjustment method according to the current spacing difference to reduce the spacing difference between the first roller gap spacing and the second roller gap spacing. When the spacing difference between the first roller gap spacing and the second roller gap spacing of the two pinch rollers is large, the output pressure of the pressing mechanism is adjusted by the spacing difference to reduce the roller gap deviation. When the roller gap deviation is reduced, the strip steel deviation problem caused by the roller gap deviation can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the composition of a production line provided in an embodiment of the present application is shown;

[0016] Figure 2 A schematic diagram showing the position of a pinch roller provided in an embodiment of the present application is shown;

[0017] Figure 3 A flow chart showing the steps of a roll gap deviation control method provided by an embodiment of the present application is shown;

[0018] Figure 4 A structural diagram of a roll gap deviation control device provided in an embodiment of the present application is shown;

[0019] Figure 5 A schematic diagram of a computer provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Figure 1The schematic diagram of the composition of a production line provided by an embodiment of the present application is shown. The production line is provided with a rolling mill 101, a pinching device 102 and a coiler 103, as well as a control center 104 and an image acquisition device 105. The control center 104 includes a computer, which is used to control the actions of the rolling mill, the pinching device and the coiler. After the strip steel processed and formed by the rolling mill is output from the rolling mill, it is clamped by the pinching device and sent to the coiler, and the coiler rolls the strip steel into a steel coil. The pinching device usually includes two pinching rollers arranged opposite to each other up and down, a lifting mechanism, a driving mechanism and a pressing mechanism. For the convenience of distinguishing, the pinching roller located at the upper part is named as the upper pinching roller, and the pinching roller located at the lower part is named as the lower pinching roller. The lifting mechanism can be composed of components such as a worm gear, the position of the lower pinching roller is fixed, and the lifting mechanism is connected to the upper pinching roller. The lifting mechanism can control the lifting and lowering of the upper pinching roller to adjust the spacing between the upper pinching roller and the lower pinching roller. The driving mechanism is located at the same end of the two pinching rollers, and can drive the two pinching rollers to rotate to clamp the strip steel. The side of the pinch roller connected to the driving mechanism is called the transmission side of the pinch roller, and the other side opposite to the transmission side is called the operating side of the pinch roller. The pressing mechanism usually includes two, one pressing mechanism is connected to the transmission side of the upper pinch roller, and the other pressing mechanism is connected to the operating side of the upper pinch roller. For the convenience of distinction, the pressing mechanism connected to the transmission side of the upper pinch roller in this embodiment is called the first pressing mechanism, and the pressing mechanism connected to the operating side of the upper pinch roller is called the second pressing mechanism. During the strip clamping process, the position of the lower pinch roller is fixed, the first pressing mechanism can output a certain pressure to the transmission side of the upper pinch roller, and the pressure is vertically directed to the lower pinch roller, and the first roller gap distance between the transmission side of the upper pinch roller and the transmission side of the lower pinch roller can be controlled. The second pressing mechanism can output a certain pressure to the operating side of the upper pinch roller, and the pressure is vertically directed to the lower pinch roller, and the second roller gap distance between the operating side of the upper pinch roller and the operating side of the lower pinch roller can be controlled. The image acquisition device is connected to the computer for communication, and can take an image of the steel strip transmitted from the pinch roller to the coiler, and send the image to the computer, which can perform image recognition on the received image to detect whether the steel strip is deviating. It should be noted that the production line may also include other components such as a heating furnace, a dephosphorization mechanism, and a cooling mechanism, and the specific composition of the production line can be set according to demand, which is not limited in this embodiment.

[0025] Figure 2A schematic diagram of the positions of pinch rollers provided in an embodiment of the present application is shown, in which an upper pinch roller 201 and a lower pinch roller 202 are arranged opposite to each other, a first pressing mechanism 203 is arranged on the transmission side of the upper pinch roller 201, and a second pressing mechanism 204 is arranged on the operating side of the upper pinch roller 201. Before the production of the strip, the spacing between the two pinch rollers can first be adjusted by a lifting mechanism to control the spacing between the two pinch rollers within a suitable spacing range. After starting the production, the pinch rollers begin to pinch the strip to the coiler. During the process of pinching the strip, the strip will exert a certain pressure on the pinch rollers. The transmission side of the pinch rollers is connected to the driving mechanism. Under the joint action of the strip and the transmission mechanism, the second roller gap spacing H2 on the operating side will be greater than the first roller gap spacing H1 on the transmission side, so that the roller gap between the upper pinch roller 201 and the lower pinch roller 202 is Figure 2 The wedge-shaped structure shown is larger on the left and smaller on the right. This is called the roll gap deviation of the pinching device. When the roll gap deviation is large, that is, when the first roll gap spacing H1 and the second roll gap spacing H2 differ greatly, the strip will deviate. After the deviated strip enters the coiler, the tower shape of the steel coil will exceed the standard. When the tower shape exceeds the standard, the size of one end of the steel coil differs greatly from the size of the other end, and the steel coil is unqualified.

[0026] In order to solve the technical problem of strip deviation caused by roll gap deviation, the embodiments of the present application provide a roll gap deviation control method, device, computer and readable storage medium.

[0027] Figure 3 A flow chart of the steps of a roller gap deviation control method provided by an embodiment of the present application is shown. The method can be applied to a pinching device, which includes two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the transmission side of one of the pinching rollers respectively; the pressing mechanism is used to output pressure to the connected pinching roller to adjust the roller gap distance between the two pinching rollers; the method may include the following steps:

[0028] Step 301: When the strip steel pinched by two pinch rollers deviates, obtain the current gap difference between the first roller gap and the second roller gap.

[0029] The first roll gap spacing is the spacing between the transmission sides of the two pinch rolls, and the second roll gap spacing is the spacing between the operating sides of the two pinch rolls. When the current gap difference is the strip deviation, the difference between the first roll gap spacing and the second roll gap spacing, the pinch roll connected to the pressing mechanism can be Figure 2 Upper pinch roll shown.

[0030] In this embodiment, the roll gap deviation control method can be Figure 1The control center shown includes a computer implementation, which can be a computer, a host computer or an industrial computer. When controlling the action of the pinching and feeding device, the computer can continuously receive images sent by the image acquisition device, identify the images, determine whether the strip is deviating, and when determining that the strip is deviating, obtain the current gap difference between the first roll gap and the second roll gap.

[0031] Optionally, the step of obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing may be implemented in the following manner:

[0032] Obtaining a first actual pressure and a second actual pressure; the first actual pressure is the pressure output by the pressing mechanism to the transmission side of the pinch roller, and the second actual pressure is the pressure output by the pressing mechanism to the operating side of the pinch roller;

[0033] Determine a first roller gap distance and a second roller gap distance according to the first actual pressure and the second actual pressure;

[0034] The current gap difference is determined according to the first roll gap gap and the second roll gap gap.

[0035] In one embodiment, when obtaining the current spacing difference, the first actual pressure currently output by the first pressing mechanism and the second actual pressure currently output by the second pressing mechanism can be first obtained. Then, at least one data group corresponding to the specifications of the strip is obtained from a pre-stored reference database; each data group includes a first reference pressure and a first reference spacing corresponding to the first pressing mechanism, and a second reference pressure and a second reference spacing corresponding to the second pressing mechanism. Next, the first reference spacing in the target data group is used as the first roll gap spacing, and the second reference spacing in the target data group is used as the second roll gap spacing; the difference between the first reference pressure in the target data group and the first actual pressure is lower than the first preset difference; the difference between the second reference pressure in the target data group and the second actual pressure is lower than the second preset difference. Finally, the difference between the first reference spacing and the second reference spacing is used as the current spacing difference.

[0036] Among them, for each specification of strip steel produced in the production line, a reference database can be pre-established, and the reference database can store one or more data groups corresponding to each specification of strip steel. The data group may include the first reference pressure and the first reference spacing corresponding to the first pressing mechanism, and the second reference pressure and the second reference spacing corresponding to the second pressing mechanism. Taking a strip steel with a width of 500 mm and a thickness of 20 mm as an example, when producing a strip steel with a width of 500 mm and a thickness of 20 mm, after producing a qualified steel coil, the pressure value output by the first pressing mechanism in the production process can be stored as the first reference pressure, the spacing value of the first roller gap spacing can be stored as the first reference spacing, and the pressure value output by the second pressing mechanism can be stored as the second reference pressure, and the spacing value of the second roller gap spacing can be stored as the second reference spacing, so as to obtain a data group consisting of the first reference pressure, the first reference spacing, the second reference pressure, and the second reference spacing. After generating qualified steel coils multiple times, multiple data groups corresponding to the specifications of 500 mm in width and 20 mm in thickness can be obtained, and the multiple data groups can be stored in the reference database, and index information between the multiple data groups and the specifications can be established. By analogy, when the production line produces strip steels of multiple different specifications, one or more data groups corresponding to the multiple different specifications can be obtained, and one or more data groups corresponding to each specification can be stored in the reference database.

[0037] In the strip production process, when the computer detects that the strip is deviating, it first determines the specification of the strip currently being produced, and obtains the first actual pressure output by the first pressing mechanism at the current moment, and the second actual pressure output by the second pressing mechanism at the current moment, and then obtains all data groups corresponding to the specification from the reference database according to the index information of the specification, and each data group includes the first reference pressure, the first reference spacing, the second reference pressure and the second reference spacing in the above example. After obtaining at least one data group from the reference database, for each data group, the first actual pressure is compared with the first reference pressure in the data group, and the second actual pressure is compared with the second reference pressure in the data group. When the difference between the first actual pressure and the first reference pressure is less than the first preset difference, and the difference between the second actual pressure and the second reference pressure is less than the second preset difference, the data group is determined as the target data group, and the first reference spacing in the target data group is used as the first roller gap spacing, and the second reference spacing in the target data group is used as the second roller gap spacing. Further, the difference between the first roller gap spacing and the second roller gap spacing can be calculated to obtain the current spacing difference. The first preset difference and the second preset difference can be preset by the user. Controlling the size of the first preset difference can control the difference between the first actual pressure and the first reference pressure. When the first preset difference is set to be larger, the first reference pressure corresponding to the first actual pressure can be quickly determined from the reference database. When the first preset difference is set to be smaller, a more accurate first reference pressure can be determined. Similarly, when the second preset difference is set to be larger, the second reference pressure corresponding to the second actual pressure can be quickly determined from the reference database. When the second preset difference is set to be smaller, a more accurate second reference pressure can be determined.

[0038] Optionally, a first pressure sensor may be provided in the first pressing mechanism, the first pressure sensor is connected to the computer for communication, and can obtain the pressure value outputted by the first pressing mechanism to the transmission side of the upper pinch roller, and send it to the computer. Similarly, a second pressure sensor may be provided in the second pressing mechanism, the second pressure sensor is connected to the computer for communication, and can obtain the pressure value outputted by the second pressing mechanism to the operating side of the upper pinch roller, and send it to the computer. When obtaining the first actual pressure and the second actual pressure, the computer may obtain the pressure value collected by the first pressure sensor at the current moment as the first actual pressure, and obtain the pressure value collected by the second pressure sensor at the current moment as the second actual pressure.

[0039] It should be noted that the specific method for the computer to obtain the first actual pressure and the second actual pressure may include but is not limited to the above examples. The method for obtaining the first roller gap distance and the second roller gap distance according to the first actual pressure and the second actual pressure may include but is not limited to the above examples.

[0040] In an embodiment of the present application, when obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing, the corresponding first roller gap spacing and second roller gap spacing are obtained from a reference database based on the first actual pressure currently output by the first pressing mechanism and the second actual pressure currently output by the second pressing mechanism, so that the first roller gap spacing and the second roller gap spacing can be obtained quickly and accurately.

[0041] Optionally, a first displacement sensor and a second displacement sensor are provided in the pinching device, the first displacement sensor is used to collect the moving distance of the transmission side of the target pinching roller, and the second displacement sensor is used to collect the moving distance of the operating side of the target pinching roller; the target pinching roller is a pinching roller connected to the pressing mechanism; the step of obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing can be achieved by the following method:

[0042] A first moving distance collected by the first displacement sensor is obtained, and a second moving distance collected by the second displacement sensor is obtained; and a current spacing difference is determined according to the first moving distance and the second moving distance.

[0043] In another embodiment, the displacement sensor provided in the pinching device can be used to collect the moving distance of the pinching roller, and the distance difference between the first roller gap and the second roller gap can be determined according to the moving distance of the pinching roller. Figure 2 The upper pinch roller shown in the figure can be provided with a first displacement sensor on the transmission side of the upper pinch roller, and a second displacement sensor can be provided on the operating side of the upper pinch roller, and the first displacement sensor and the second displacement sensor are respectively connected to the computer for communication. Before the strip steel starts to be produced, after the spacing between the two pinch rollers is set, the moving distance collected by the first displacement sensor is set as the first starting moving distance, and the moving distance collected by the second displacement sensor is set as the second starting moving distance. After the production is started, the difference between the real-time moving distance collected by the first displacement sensor and the first starting moving distance is taken as the first moving distance, and the first moving distance is the moving distance of the transmission side of the upper pinch roller during the production process. Similarly, the difference between the real-time moving distance collected by the second displacement sensor and the second starting moving distance can be taken as the second moving distance, and the second moving distance is the moving distance of the operating side of the upper pinch roller during the production process. In the case where the strip steel is detected to be running off, the computer calculates the difference between the first moving distance and the second moving distance to obtain the current spacing difference between the first roller gap spacing and the second roller gap spacing.

[0044] In the embodiment of the present application, the movement distances of the operating side and the transmission side of the target pinch roller are collected by a displacement sensor, and the current spacing difference between the first roller gap spacing and the second roller gap spacing can be quickly and accurately determined based on the two movement distance values.

[0045] Optionally, the clamping device is used to clamp the strip steel to the coiler; step 301 may include:

[0046] When the tower shape of the steel coil exceeds the standard, the strip deviation is determined and the current spacing difference is obtained; the steel coil is obtained by the coiler winding the strip from the clamping device; or, when the strip deviation and the tower shape of the steel coil exceeds the standard, the current spacing difference is obtained.

[0047] In one embodiment, the image acquisition device includes a first camera, which is arranged between the pinch roller and the coiler, and is used to shoot the strip steel transmitted by the pinch roller to the coiler to obtain a first image. During the production process, the computer can control the first camera to shoot the strip steel transmitted by the pinch roller to obtain a first image. After obtaining the first image, the computer can perform image recognition to determine whether the strip steel in the first image is entirely located within the target area in the first image. When the strip steel is entirely located within the target area in the first image, it is determined that the strip steel has not deviated. On the contrary, when only part of the strip steel in the first image is located within the target area or the strip steel is detected in other areas except the target area, it is determined that the strip steel has deviated. When determining that the strip steel has deviated, the computer can execute the step of obtaining the current spacing difference. When it is determined that the strip steel has not deviated, continue to obtain the first image, perform image recognition, and monitor whether the strip steel has deviated.

[0048] In another embodiment, the image acquisition device may include a second camera, which is disposed in the coiler and is communicatively connected to the computer. The second camera may photograph the steel coil in the coiler to obtain a second image. After acquiring the second image, the computer may identify the second image, identify the steel coil in the second image, and determine the size of both ends of the steel coil. When the difference between the size of one end of the steel coil and the size of the other end is greater than a preset size difference, it is determined that the tower shape of the steel coil exceeds the standard. At this time, it may be indirectly determined that the strip is deviating, and the step of acquiring the current spacing difference is executed. On the contrary, when the difference between the size of one end of the steel coil and the size of the other end is less than the preset size difference, it is determined that the tower shape of the steel coil does not exceed the standard, and the acquired second image may continue to be identified to monitor whether the tower shape exceeds the standard.

[0049] In another embodiment, the image acquisition device may include a first camera and a second camera at the same time, and the computer may identify the first image acquired by the first camera to determine whether the strip is deviated, and identify the second image acquired by the second camera to determine whether the tower shape of the steel coil exceeds the standard, and obtain the current spacing difference when the strip is deviated and the tower shape exceeds the standard. When either of the two conditions of strip deviation and tower shape exceeding the standard is not met, the step of obtaining the current spacing difference is not performed.

[0050] It should be noted that the methods for determining whether the strip steel has deviated and whether the tower shape exceeds the standard may include but are not limited to the above examples.

[0051] In an embodiment of the present application, the current spacing difference between the first roll gap spacing and the second roll gap spacing can be obtained when the strip deviates and the tower shape of the steel coil exceeds the standard. When the strip deviates and the tower shape exceeds the standard, the output pressure of the pressing mechanism is adjusted to reduce the spacing difference between the first roll gap spacing and the second roll gap spacing, thereby avoiding frequent adjustment of the spacing between the first roll gap spacing and the second roll gap spacing.

[0052] Step 302: When the current gap difference is greater than a preset gap difference lower limit, the output pressure of the pressing mechanism is adjusted by a target adjustment method according to the current gap difference to reduce the gap difference between the first roller gap and the second roller gap.

[0053] The lower limit of the spacing difference can be preset by the user, and is used to determine whether the current spacing difference is too large and whether the deviation between the first roller gap spacing and the second roller gap spacing needs to be adjusted.

[0054] In this embodiment, after obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing, it can be determined whether the current spacing difference is greater than the preset spacing difference lower limit. When the current spacing difference is greater than the spacing difference lower limit, the pressure difference between the pressure adjustment amplitudes of the two pressing mechanisms is controlled to be positively correlated with the current spacing difference, and the output pressure of the pressing mechanism is adjusted by the target adjustment method to reduce the spacing difference between the first roller gap spacing and the second roller gap spacing. When adjusting the output pressure of the pressing mechanism, the target adjustment method is first determined, and the output pressure of the pressing mechanism is adjusted by the target adjustment method. During the adjustment process, the pressure difference between the pressure adjustment amplitudes of the two pressing mechanisms is controlled to be positively correlated with the current spacing difference.

[0055] Exemplarily, when the first roller gap spacing is smaller than the second roller gap spacing, the target adjustment method may include method one, method two and method three. Method one is: reduce the output pressure of the first pressing mechanism, keep the output pressure of the second pressing mechanism unchanged, so as to increase the first roller gap spacing, keep the second roller gap spacing unchanged, thereby reducing the spacing difference between the first roller gap spacing and the second roller gap spacing. Method two is: increase the output pressure of the second pressing mechanism, keep the output pressure of the first pressing mechanism unchanged, so as to reduce the second roller gap spacing, keep the first roller gap spacing unchanged, thereby reducing the spacing difference between the first roller gap spacing and the second roller gap spacing. Method three is: while reducing the output pressure of the first pressing mechanism, increase the output pressure of the second pressing mechanism, so as to increase the first roller gap spacing, reduce the second roller gap spacing, thereby reducing the spacing difference between the first roller gap spacing and the second roller gap spacing. The target adjustment method can be specifically selected according to the needs, and this embodiment does not limit this.

[0056] When adjusting the output pressure of the two pressing mechanisms, the pressure difference between the pressure adjustment amplitudes of the two pressing mechanisms is positively correlated with the current spacing difference. Exemplarily, the target pressure difference corresponding to the current spacing difference can be determined, and the output pressure of the pressing mechanism can be controlled according to the target pressure difference. For example, the pressure corresponding to each millimeter of spacing difference is 1 kilopascal (kpa), and the corresponding target pressure difference can be calculated according to the current spacing difference. The larger the current spacing difference, the larger the corresponding target pressure difference. After obtaining the target pressure difference, the output pressure of the two pressing mechanisms is adjusted, and the pressure difference between the pressure adjustment amplitudes of the two pressing mechanisms is controlled to be equal to the target pressure difference. For example, when adjusting by way one, the output pressure of the first pressing mechanism can be reduced by the target pressure difference, and the output pressure of the second pressing mechanism can be kept unchanged. When adjusting by way two, the output pressure of the second pressing mechanism can be increased by the target pressure difference, and the output pressure of the first pressing mechanism can be kept unchanged. When adjusting by way three, the output pressure of the first pressing mechanism can be reduced by X, and the output pressure of the second pressing mechanism can be increased by Y, and the sum of X and Y is equal to the target pressure difference.

[0057] In the process of strip steel production, the computer can continuously monitor the strip steel, obtain the current spacing difference when the strip steel is detected to be deviated, and adjust the output pressure of the pressing mechanism when the current spacing difference is greater than the lower limit of the spacing difference. After each adjustment of the output pressure of the pressing mechanism, the computer continues to monitor whether the strip steel is deviated, and when the strip steel is deviated, the computer continues to execute the steps of obtaining the current spacing difference and adjusting the output pressure of the pressing mechanism according to the current spacing difference, so as to continuously control the roller gap deviation of the pinch roller.

[0058] It should be noted that when the current spacing difference is lower than the preset spacing difference lower limit, it can be determined that the strip deviation is not related to the roller gap deviation. At this time, a prompt message can be output to prompt the user that the strip is deviating, and the user can check the cause of the strip deviation.

[0059] Optionally, the step of adjusting the output pressure of the pressing mechanism by a target adjustment method may include:

[0060] According to the size of the current spacing difference, a target spacing level corresponding to the current spacing difference is determined from multiple spacing levels; different spacing levels correspond to different spacing differences, and the spacing differences corresponding to two adjacent spacing levels are separated by a preset distance;

[0061] According to the target pressure difference corresponding to the target spacing difference, the output pressure of the pressing mechanism is adjusted through a target adjustment method.

[0062] In one embodiment, the current spacing difference can be graded, the target spacing level corresponding to the current spacing difference can be determined, and then the target pressure difference corresponding to the target spacing level can be determined, and the output pressure of the pressing mechanism can be adjusted according to the target pressure difference corresponding to the target spacing level. For example, the preset distance is 0.1 mm, the spacing level corresponding to the spacing difference of 0.1 mm is level 1, the spacing level corresponding to the spacing difference of 0.2 mm is level 2, and the spacing level corresponding to the spacing difference of 0.3 mm is level 3. By analogy, the spacing level increases by 1 level for every 0.1 mm increase in the spacing difference. When determining the target spacing level corresponding to the current spacing difference, when the current spacing difference is greater than a certain spacing level and less than the next spacing level after the spacing level, the spacing level can be determined as the target spacing level corresponding to the current spacing difference. For example, if the current spacing difference is 0.21 mm, which is greater than 0.2 mm and less than 0.3 mm, the target spacing level is determined to be level 2. After determining the target spacing level, the target pressure difference corresponding to the target spacing level can be further determined, and the output pressure of the pressing mechanism can be adjusted according to the target pressure difference. Combined with the above examples, the pressure difference corresponding to the spacing level can be determined according to the spacing difference corresponding to the spacing level, or can be directly divided according to the spacing level. For example, the pressure difference corresponding to level 1 can be set to 1kpa, the pressure difference corresponding to level 2 can be set to 2kpa, and the pressure difference corresponding to level 3 can be set to 3kpa.

[0063] Among them, the spacing difference corresponding to the minimum spacing level can be set to be greater than the spacing difference lower limit. The higher the spacing level, the greater the corresponding spacing difference. When the current spacing difference is greater than the spacing difference lower limit, the target spacing level corresponding to the current spacing difference is determined, and the output pressure of the pressing mechanism is adjusted according to the pressure difference corresponding to the target spacing level.

[0064] In the embodiment of the present application, after determining the current spacing difference between the first roller gap spacing and the second roller gap spacing, the current spacing difference is first graded, and then the output pressure of the pressing mechanism is adjusted according to the target spacing level corresponding to the current spacing difference, which can reduce the difficulty of adjustment. For example, when the current spacing difference is greater than or equal to 0.2 mm and less than 0.3 mm, the output pressure of the pressing mechanism can be adjusted according to the pressure difference corresponding to 0.2 mm. If the current spacing difference is not graded, when the current spacing difference is 0.21 mm, the output pressure of the pressing mechanism needs to be adjusted according to the pressure difference corresponding to 0.21 mm, and when the current spacing difference is 0.23 mm, the output pressure of the pressing mechanism needs to be adjusted according to the pressure difference corresponding to 0.23 mm. The pressure difference corresponding to 0.21 mm and 0.23 mm is more accurate than the pressure difference corresponding to 0.2 mm, and the output pressure of the pressing mechanism needs to be adjusted more accurately. When the pressure difference is more accurate, the difficulty of adjustment is greater. By grading the current spacing difference, it is not necessary to accurately adjust the pressure of the pressing mechanism, which can reduce the difficulty of adjustment.

[0065] Optionally, after obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing, the method further includes:

[0066] When the current spacing difference is greater than the preset spacing difference upper limit, a deviation over-limit alarm signal is output; and / or, when the first roll gap spacing is greater than the preset first spacing upper limit, a first roll gap over-limit alarm signal is output; and / or, when the second roll gap spacing is greater than the preset second spacing upper limit, a second roll gap over-limit alarm signal is output.

[0067] In one embodiment, after obtaining the current spacing difference between the first roller gap spacing and the second roller gap spacing, if the computer determines that the current spacing difference is greater than a preset spacing difference upper limit, it means that the roller gap deviation cannot be adjusted by adjusting the output pressure of the pressing mechanism. At this time, a deviation exceeding limit alarm signal can be output to prompt the user to adjust the roller gap deviation through other means.

[0068] Optionally, after obtaining the first roll gap spacing, if the computer determines that the first roll gap spacing is greater than the preset first gap upper limit, it is determined that the first roll gap spacing is out of limit, and at this time, a first roll gap over-limit alarm signal can be output to remind the user that the first roll gap spacing is too large and the first roll gap spacing needs to be adjusted. Similarly, after obtaining the second roll gap spacing, if the computer determines that the second roll gap spacing is greater than the preset second gap upper limit, it is determined that the second roll gap spacing is out of limit, and at this time, a second roll gap over-limit alarm signal can be output to remind the user that the second roll gap spacing is too large and the first roll gap spacing needs to be adjusted.

[0069] Optionally, the computer may be integrated with a display and / or an audible and visual alarm device, and the computer may output a deviation over-limit alarm signal, a first roll gap over-limit alarm signal, and a second roll gap over-limit alarm signal through the display or the audible and visual alarm device. The specific form of the alarm signal may be set as required, and this embodiment does not limit this. The specific values ​​of the first spacing upper limit, the second spacing upper limit, and the spacing difference upper limit may be flexibly set as required.

[0070] In the embodiment of the present application, when the gap difference between the first roll gap gap and the second roll gap gap is greater than the gap difference upper limit, an alarm signal is output to remind the user to adjust the excessive roll gap deviation. When the first roll gap gap or the second roll gap gap is too large, an alarm message is output to remind the user that the roll gap gap is too large, so that the user can deal with the excessive roll gap gap in time.

[0071] Optionally, after adjusting the output pressure of the pressing mechanism, the method may further include:

[0072] In the case where the pressing mechanism does not respond, a fault alarm signal corresponding to the pressing mechanism is output.

[0073] In one embodiment, after the computer adjusts the output pressure of the pressing mechanism, if the pressing mechanism does not respond, the computer can output a fault alarm message to prompt the user that the pressing mechanism is faulty. For example, when adjusting the pressure of the pressing mechanism through method one, after the computer outputs the adjusted output pressure to the first pressing mechanism, if the pressure value collected by the first pressure sensor does not change, it can be determined that the first pressing mechanism is faulty and cannot respond to the control instruction of the computer. At this time, the computer can output a first fault alarm signal corresponding to the first pressing mechanism to prompt the user that the first pressing mechanism is faulty. Similarly, when the second pressing mechanism does not respond, the computer can output a second fault alarm signal corresponding to the second pressing mechanism to prompt the user that the second pressing mechanism is faulty. The specific method for the computer to detect that the pressing mechanism is unresponsive may include but is not limited to the above examples, and this embodiment does not limit this.

[0074] In an embodiment of the present application, after adjusting the output pressure of the pressing mechanism, if it is determined that the pressing mechanism cannot respond, a fault alarm signal can be output in time to remind the user of the pressing mechanism failure, so that the user can quickly deal with the pressing mechanism and avoid the production of strip steel when the pressing mechanism fails.

[0075] In summary, in the embodiment of the present application, when the strip steel clamped by the two pinch rollers in the pinch device is detected to be deviated, the current spacing difference between the first roller gap spacing and the second roller gap spacing is obtained, and when the current spacing difference is greater than the preset spacing difference lower limit, the output pressure of the pressing mechanism is adjusted by the target adjustment method according to the current spacing difference to reduce the spacing difference between the first roller gap spacing and the second roller gap spacing. When the spacing difference between the first roller gap spacing and the second roller gap spacing of the two pinch rollers is large, the output pressure of the pressing mechanism is adjusted by the spacing difference to reduce the roller gap deviation. When the roller gap deviation is reduced, the strip steel deviation problem caused by the roller gap deviation can be solved.

[0076] Furthermore, when the roll gap deviation is reduced, the strip is prevented from running off, thereby avoiding the problem of excessive tower shape of the steel coil caused by large roll gap deviation. The roll gap deviation control method provided in the embodiment of the present application can significantly avoid the problem of strip running off due to roll gap deviation when producing strip steel with a thickness not exceeding 2.5 mm, and avoid excessive tower shape of the steel coil.

[0077] Figure 4 The structure diagram of a roller gap deviation control device provided in an embodiment of the present application is shown. The device 4 is applied to a pinching device, which includes two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the driving side of one of the pinching rollers respectively; the pressing mechanism is used to output pressure to the connected pinching roller to adjust the roller gap distance between the two pinching rollers; the device 4 includes:

[0078] The acquisition module 401 is used to acquire the current gap difference between the first roll gap and the second roll gap when the strip steel pinched by the two pinch rolls deviates; the first roll gap is the gap between the transmission sides of the two pinch rolls, and the second roll gap is the gap between the operating sides of the two pinch rolls;

[0079] The adjustment module 402 is used to adjust the output pressure of the pressing mechanism through a target adjustment method according to the current gap difference when the current gap difference is greater than a preset gap difference lower limit, so as to reduce the gap difference between the first roller gap and the second roller gap.

[0080] Optionally, the adjustment module 402 is used to determine a target spacing level corresponding to the current spacing difference from multiple spacing levels according to the size of the current spacing difference; different spacing levels correspond to different spacing differences, and the spacing differences corresponding to two adjacent spacing levels are separated by a preset distance; according to the target pressure difference corresponding to the target spacing difference, the output pressure of the pressing mechanism is adjusted through a target adjustment method.

[0081] Optionally, an acquisition module 401 is used to acquire a first actual pressure and a second actual pressure; the first actual pressure is the pressure output by the pressing mechanism to the transmission side of the pinch roller, and the second actual pressure is the pressure output by the pressing mechanism to the operating side of the pinch roller; the first roller gap spacing and the second roller gap spacing are determined according to the first actual pressure and the second actual pressure; the current gap difference is determined according to the first roller gap spacing and the second roller gap spacing.

[0082] Optionally, a first displacement sensor and a second displacement sensor are provided in the clamping device, the first displacement sensor is used to collect the moving distance of the transmission side of the target clamping roller, and the second displacement sensor is used to collect the moving distance of the operating side of the target clamping roller; the target clamping roller is a clamping roller connected to the pressing mechanism; the acquisition module 401 is used to obtain the first moving distance collected by the first displacement sensor, and to obtain the second moving distance collected by the second displacement sensor; the current spacing difference is determined according to the first moving distance and the second moving distance.

[0083] Optionally, acquisition module 401 is used to determine that the strip is deviating and obtain the current spacing difference when the tower shape of the steel coil exceeds the standard; the steel coil is obtained by the coiler winding the strip from the clamping device; or, when the strip is deviating and the tower shape of the steel coil exceeds the standard, the current spacing difference is obtained.

[0084] Optionally, the device 40 also includes: a first alarm module, which is used to output a deviation over-limit alarm signal when the current spacing difference is greater than a preset spacing difference upper limit; and / or, when the first roller gap spacing is greater than a preset first spacing upper limit, output a first roller gap over-limit alarm signal; and / or, when the second roller gap spacing is greater than a preset second spacing upper limit, output a second roller gap over-limit alarm signal.

[0085] Optionally, the device 40 further includes: a second alarm module, configured to output a fault alarm signal corresponding to the pressing mechanism when the pressing mechanism does not respond.

[0086] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0087] Figure 5 FIG. 1 is a schematic diagram of a computer provided in an embodiment of the present application. Figure 5 As shown, the computer 5 of this embodiment includes: a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50, such as a roll gap deviation control program. When the processor 50 executes the computer program 52, the steps in the above roll gap deviation control method embodiment are implemented, such as Figure 3 Alternatively, when the processor 50 executes the computer program 52, the functions of each module / unit in the above-mentioned device embodiments are realized, for example, Figure 4 Functions of modules 401 to 402 are shown.

[0088] Exemplarily, the computer program 52 may be divided into one or more modules / units, which are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program 52 in the electronic computer 5. For example, the computer program 52 may be divided into an acquisition module and an adjustment module. The specific functions of each module are as described above.

[0089] The computer device 5 may be a computing device such as a desktop computer and a cloud server. The computer may include, but is not limited to, a processor 50 and a memory 51. Those skilled in the art will appreciate that Figure 5 It is only an example of computer 5 and does not constitute a limitation of computer 5. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer may also include input and output devices, network access devices, buses, etc.

[0090] The processor 50 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0091] The memory 51 may be an internal storage unit of the computer 5, such as a hard disk or memory of the computer 5. The memory 51 may also be an external storage device of the computer 5, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the computer 5. Further, the memory 51 may include both an internal storage unit of the computer 5 and an external storage device. The memory 51 is used to store the computer program and other programs and data required by the ** device / terminal device. The memory 51 may also be used to temporarily store data that has been output or is to be output.

[0092] An embodiment of the present application further provides a readable storage medium, which stores the computer program described above. When the computer program is executed by a processor, each step of the roll gap deviation control method described above is implemented.

[0093] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0096] In the embodiments provided in the present application, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0097] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0098] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0099] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0100] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A roll gap deviation control method, characterized in that: Applicable to a pinching device, the pinching device comprising two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the transmission side of one of the pinching rollers respectively; The pressing mechanism is used to output pressure to the connected pinch rollers to adjust the roller gap distance between the two pinch rollers; the method comprises: When the strip steel pinched by the two pinch rollers deviates, the current gap difference between the first roller gap and the second roller gap is obtained; the first roller gap is the gap between the transmission sides of the two pinch rollers, and the second roller gap is the gap between the operating sides of the two pinch rollers; When the current spacing difference is greater than a preset spacing difference lower limit, the output pressure of the pressing mechanism is adjusted by a target adjustment method according to the current spacing difference to reduce the spacing difference between the first roll gap spacing and the second roll gap spacing; when the current spacing difference is less than a preset spacing difference lower limit, information prompting the strip steel to deviate is output; When the strip steel pinched by the two pinch rollers deviates, obtaining the current gap difference between the first roller gap and the second roller gap comprises: When the strip steel deviates and the tower shape of the steel coil exceeds the standard, the current spacing difference is obtained; A first camera is provided between the pinch roller and the coiler, for photographing the strip steel transmitted by the pinch roller to the coiler to obtain a first image. When the entire strip steel is located within the target area in the first image, it is determined that the strip steel has not deviated. A second camera is provided in the coiler, for photographing the steel coil in the coiler to obtain a second image. When the difference between the size of one end of the steel coil and the size of the other end is greater than a preset size difference, it is determined that the tower shape of the steel coil exceeds the standard.

2. The method according to claim 1, characterized in that The step of adjusting the output pressure of the pressing mechanism by a target adjustment method according to the current spacing difference includes: According to the size of the current spacing difference, determining a target spacing level corresponding to the current spacing difference from a plurality of spacing levels; different spacing levels correspond to different spacing differences, and spacing differences corresponding to two adjacent spacing levels are separated by a preset distance; According to the target pressure difference corresponding to the target spacing difference, the output pressure of the pressing mechanism is adjusted by the target adjustment method.

3. The method according to claim 1, characterized in that The obtaining of the current gap difference between the first roller gap gap and the second roller gap gap comprises: Acquire a first actual pressure and a second actual pressure; the first actual pressure is the pressure output by the pressing mechanism to the transmission side of the pinch roller, and the second actual pressure is the pressure output by the pressing mechanism to the operating side of the pinch roller; Determine the first roller gap distance and the second roller gap distance according to the first actual pressure and the second actual pressure; The current gap difference is determined according to the first roll gap gap and the second roll gap gap.

4. The method according to claim 1, characterized in that The pinching device is provided with a first displacement sensor and a second displacement sensor, wherein the first displacement sensor is used to collect the moving distance of the transmission side of the target pinching roller, and the second displacement sensor is used to collect the moving distance of the operating side of the target pinching roller; The target pinch roller is the pinch roller connected to the press-down mechanism; The obtaining of the current distance difference between the first roller gap distance and the second roller gap distance comprises: obtaining a first moving distance collected by the first displacement sensor, and obtaining a second moving distance collected by the second displacement sensor; The current distance difference is determined according to the first moving distance and the second moving distance.

5. The method according to claim 1, characterized in that After obtaining the current gap difference between the first roller gap and the second roller gap, the method further includes: When the current spacing difference is greater than the preset spacing difference upper limit, a deviation over-limit alarm signal is output; and / or, when the first roller gap spacing is greater than the preset first spacing upper limit, a first roller gap over-limit alarm signal is output; and / or, when the second roller gap spacing is greater than the preset second spacing upper limit, a second roller gap over-limit alarm signal is output.

6. The method according to any one of claims 1 to 5, characterized in that After adjusting the output pressure of the pressing mechanism by the target adjustment method, the method further includes: In the case where the pressing mechanism does not respond, a fault alarm signal corresponding to the pressing mechanism is output.

7. A roll gap deviation control device, characterized in that: The pinching device includes two pinching rollers arranged opposite to each other, and a pressing mechanism connected to the operating side and the transmission side of one of the pinching rollers respectively; The pressing mechanism is used to output pressure to the connected pinch rollers to adjust the roller gap distance between the two pinch rollers; the device comprises: An acquisition module, used for acquiring a current gap difference between a first roll gap and a second roll gap when the strip steel pinched by the two pinch rollers deviates; the first roll gap is the gap between the transmission sides of the two pinch rollers, and the second roll gap is the gap between the operating sides of the two pinch rollers; an adjusting module, configured to adjust the output pressure of the pressing mechanism by a target adjustment method according to the current gap difference, so as to reduce the gap difference between the first roll gap and the second roll gap, when the current gap difference is greater than a preset gap difference lower limit; and output information indicating that the strip is deviating, when the current gap difference is less than a preset gap difference lower limit; When the strip steel pinched by the two pinch rollers deviates, obtaining the current gap difference between the first roller gap and the second roller gap comprises: When the strip steel deviates and the tower shape of the steel coil exceeds the standard, the current spacing difference is obtained; A first camera is provided between the pinch roller and the coiler, for photographing the strip steel transmitted by the pinch roller to the coiler to obtain a first image. When the entire strip steel is located within the target area in the first image, it is determined that the strip steel has not deviated. A second camera is provided in the coiler, for photographing the steel coil in the coiler to obtain a second image. When the difference between the size of one end of the steel coil and the size of the other end is greater than a preset size difference, it is determined that the tower shape of the steel coil exceeds the standard.

8. A computer comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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