Thickness gauge control method and device, medium and equipment

Abstract

The invention discloses a thickness gauge control method and device, a medium and equipment, the number of thickness gauges is multiple, the multiple thickness gauges are arranged at different positions of a strip steel rolling unit, in the process that the strip steel rolling unit rolls strip steel, the method comprises the steps that a target thickness gauge located at the first position in the multiple thickness gauges is controlled to stop running, and the target thickness gauge located at the second position in the multiple thickness gauges is controlled to stop running; the other thickness gauges located at the second position except the target thickness gauge keep running, so that the strip steel rolling unit adjusts the rolling thickness of the strip steel according to the thickness measurement data of the other thickness gauges on the strip steel; the target thickness gauge is controlled to move to an off-line position, the target thickness gauge is calibrated at the off-line position, the target thickness gauge is controlled to move to an on-line position and put into operation after calibration is completed, the off-line position is located outside a rolling production line of the strip steel, and the on-line position is located inside the rolling production line of the strip steel. The production requirement for continuous and stable rolling of the thin-specification strip steel can be met, and the strip steel production efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of strip steel production control technology, and in particular relates to a control method, device, medium and equipment for a thickness gauge. Background Art

[0002] Thickness accuracy is a key quality indicator in strip production. Strip rolling mills typically use thickness gauges to measure strip thickness and automatically adjust thickness to ensure accuracy. To ensure accurate measurement, thickness gauges are typically calibrated offline after a period of operation (e.g., 8-12 hours).

[0003] In the related art, during the offline calibration of the thickness gauge, the strip rolling mill is in a shutdown state. When the strip rolling mill is restarted after shutdown, if the rolled strip is a thin strip, it may cause the strip to break, thereby affecting the strip production efficiency. Summary of the Invention

[0004] The embodiments of the present application provide a control method, device, medium and equipment for a thickness gauge, which can at least to a certain extent meet the production requirements of continuous and stable rolling of thin-gauge strip steel and improve strip steel production efficiency.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0006] According to a first aspect of an embodiment of the present application, a method for controlling a thickness gauge is provided, wherein a plurality of thickness gauges are provided at different positions of a strip rolling mill, and during a process in which the strip rolling mill rolls a strip, the method comprises:

[0007] controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and controlling the other thickness gauges located at a second position other than the target thickness gauge to keep operating, so that the strip rolling mill can adjust the rolled thickness of the strip according to the thickness measurement data of the strip obtained by the other thickness gauges;

[0008] The target thickness gauge is controlled to move to an offline position, and is calibrated at the offline position. After the calibration is completed, the target thickness gauge is controlled to move to an online position and put into operation, wherein the offline position is outside the rolling production line of the strip steel, and the online position is inside the rolling production line of the strip steel.

[0009] Optionally, the strip steel rolling mill rolls the strip steel, including:

[0010] The strip steel rolling mill unit rolls the strip steel at a preset speed, and the ratio of the preset speed to the maximum rolling speed of the strip steel rolling mill unit is in the range of 10% to 20%.

[0011] Optionally, each of the thickness gauges includes a shutter, and controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop running, while other thickness gauges located at a second position other than the target thickness gauge keep running, comprises:

[0012] controlling a shutter of the target thickness gauge to close to stop measuring the thickness of the strip;

[0013] The shutters of the other thickness gauges are controlled to open to measure the thickness of the steel strip.

[0014] Optionally, an edge drop meter and at least one thickness gauge are provided at an exit position of the strip rolling mill, and the controlling of stopping the operation of a target thickness gauge located at a first position among the plurality of thickness gauges, while keeping the operation of the other thickness gauges located at a second position other than the target thickness gauge, comprises:

[0015] The target thickness gauge located at the exit position among the multiple thickness gauges is controlled to stop running, while the other thickness gauges except the target thickness gauge keep running, and the edge drop gauge keeps running, so as to adjust the rolling thickness of the strip at the exit position according to the thickness measurement data of the strip by the edge drop gauge.

[0016] Optionally, the thickness measurement data of the strip steel by the edge drop meter includes: center thickness data of the strip steel in the width direction of the strip steel.

[0017] Optionally, an edge drop meter is provided at the exit position of the strip rolling mill, and the method further comprises:

[0018] During the process of the strip steel rolling mill unit rolling the strip steel, controlling the edge drop meter to stop running and the plurality of thickness gauges to keep running;

[0019] The edge drop instrument is controlled to move to the offline position, the edge drop instrument is calibrated at the offline position, and after the calibration is completed, the edge drop instrument is controlled to move to the online position and put into operation.

[0020] Optionally, the strip rolling mill is provided with a working roll at the exit position, and before controlling the edge drop meter to stop operating and the plurality of thickness gauges to keep operating, the method further comprises:

[0021] If the raw material convexity of the strip steel is within the preset convexity range, the bending roll parameters and the shifting roll parameters of the working roll are controlled to remain unchanged, and the step of controlling the edge drop meter to stop running and the multiple thickness gauges to keep running is executed, wherein the preset convexity range is 20um-30um.

[0022] According to a second aspect of an embodiment of the present application, a calibration device for a thickness gauge is provided, wherein the plurality of thickness gauges are arranged at different positions of a strip rolling mill, and during the strip rolling mill rolling a strip, the device comprises:

[0023] a first control unit, configured to control a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and control the other thickness gauges located at a second position other than the target thickness gauge to keep operating, so that the strip rolling mill adjusts the rolled thickness of the strip according to thickness measurement data of the strip obtained by the other thickness gauges;

[0024] The second control unit is used to control the target thickness gauge to move to an offline position, calibrate the target thickness gauge at the offline position, and control the target thickness gauge to move to an online position and put it into operation after the calibration is completed, wherein the offline position is located outside the rolling production line of the strip steel, and the online position is located within the rolling production line of the strip steel.

[0025] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by any method described in the first aspect.

[0026] According to a fourth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by any of the methods described in the first aspect.

[0027] The one or more technical solutions provided by the embodiments of the present invention achieve at least the following technical effects or advantages:

[0028] The thickness gauge calibration method of the present application is that there are multiple thickness gauges, and the multiple thickness gauges are arranged at different positions of the strip rolling mill. During the process of the strip rolling mill rolling the strip, the method includes: controlling a target thickness gauge located at a first position among the multiple thickness gauges to stop running, and keeping other thickness gauges located at a second position other than the target thickness gauge running, so that the strip rolling mill adjusts the rolled thickness of the strip according to the thickness measurement data of the strip by other thickness gauges; controlling the target thickness gauge to move to an offline position, calibrating the target thickness gauge at the offline position, and controlling the target thickness gauge to move to an online position and put into operation after the calibration is completed, wherein the offline position is outside the strip rolling production line, and the online position is within the strip rolling production line. Therefore, the embodiment of the present application performs offline calibration on one of the thickness gauges during the strip rolling process, while the other thickness gauges remain in operation to provide thickness measurement data for the strip rolling process, thereby avoiding the problem of the strip rolling unit shutting down during the thickness gauge calibration process affecting production efficiency, and the problem of thin-gauge strip breaking when the strip rolling unit is restarted, thereby meeting the production needs of continuous and stable rolling of thin-gauge strips and improving strip production efficiency.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0031] Figure 1 A schematic diagram showing the distribution of thickness gauges in a strip rolling mill according to an embodiment of the present application is shown;

[0032] Figure 2 A flow chart showing a method for controlling a thickness gauge according to an embodiment of the present application is shown;

[0033] Figure 3 A structural diagram of a control device for a thickness gauge according to an embodiment of the present application is shown;

[0034] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0037] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. In other words, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different models and / or processor devices and / or microcontroller devices.

[0038] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0039] It should also be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described.

[0040] Thickness accuracy is a key quality indicator in strip production. Strip rolling mills typically use thickness gauges to measure strip thickness and automatically adjust thickness to ensure accuracy. To ensure accurate measurement, the gauge is typically calibrated offline after a period of operation (e.g., 8-12 hours) to prevent zero drift and degradation of the strip thickness.

[0041] In the related art, during the offline calibration of the thickness gauge, the strip rolling mill is in a shutdown state. When the strip rolling mill is restarted after shutdown, if the rolled strip is a thin-gauge strip, the speed change of the strip rolling mill causes the roll gap to change, such as tension fluctuation, thickness fluctuation, etc., resulting in the breakage of the thin-gauge strip, thereby affecting the strip production efficiency.

[0042] In view of this, an embodiment of the present application provides a control method for a thickness gauge, which can, to a certain extent, meet the production requirements of continuous and stable rolling of thin-gauge strip steel and improve strip steel production efficiency.

[0043] The control method of the thickness gauge according to the embodiment of the present application is described below with reference to specific drawings.

[0044] See also Figure 1 , shows a schematic diagram of the distribution of thickness gauges in a strip rolling mill according to an embodiment of the present application; see Figure 2 , which shows a flow chart of a control method for a thickness gauge according to an embodiment of the present application.

[0045] like Figure 1 As shown, the strip rolling mill 1 includes multiple stands arranged sequentially along the rolling direction of the strip. Multiple thickness gauges 2 may be provided, and these gauges 2 may be located at different locations within the strip rolling mill, such as at the entrance and exit of the first stand 11, the entrance and exit of the last stand 12, and the exit of the last stand 12. Thus, the thickness gauges 2 can measure the thickness of the strip as it passes through the locations where the thickness gauges 2 are located. The thickness of the strip in the next rolling pass can then be automatically adjusted based on the thickness measurement data, thereby achieving the required accuracy for the strip's rolled thickness.

[0046] It is understandable that when the strip rolling mill is a cold rolling mill, during the cold rolling process, the deformation of the edge of the roll is smaller than that of the middle due to the different distribution of rolling force, resulting in thinning of the edge. In order to reduce the edge drop after rolling, the rolling parameters of the roll need to be designed to compensate for the edge drop. Based on this, Figure 1 As shown, the edge drop information of the strip can be detected by the edge drop meter 3. For example, the edge drop meter 3 is set at the exit position of the strip rolling unit (i.e., the exit position of the last stand) to detect the edge drop information of the strip at the exit position, so as to further improve the rolling accuracy of the strip by combining the thickness measurement information of the strip.

[0047] like Figure 2As shown, according to the first aspect of the embodiment of the present application, a control method for a thickness gauge is provided, which can be executed on a controller of a strip rolling mill, such as an industrial computer, etc., in the process of the strip rolling mill rolling the strip, for example, in the process of the strip rolling mill rolling the strip at a preset speed, wherein the ratio between the preset speed and the maximum rolling speed of the strip rolling mill is in the range of 10%-20%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc., and the maximum rolling speed of the strip rolling mill refers to the maximum rolling speed that can be provided within the capacity of the strip rolling mill, for example For example, the preset speed may be 1200 mpm (meters per minute)-2000 mpm, for example, 1200 mpm, 1400 mpm, 1500 mpm, 1600 mpm, 1800 mpm, 1900 mpm, and 2000 mpm; the minimum speed of the preset speed may be 120 mpm-240 mpm, for example, 120 mpm, 140 mpm, 160 mpm, 180 mpm, 200 mpm, 220 mpm, and 240 mpm; the maximum speed of the preset speed may be 200 mpm-400 mpm, for example, 200 mpm, 240 mpm, 290 mpm, 340 mpm, 360 mpm, 380 mpm, and 400 mpm.

[0048] It can be understood that when the thickness gauge has a calibration requirement, the rolling speed of the strip rolling unit is controlled at 10%-20% of the maximum rolling speed, so that as many thickness gauges as possible can be calibrated in as few strip rolling processes as possible. For example: in the process of the strip rolling unit rolling a strip, the calibration of all thickness gauges can be completed, thereby improving the consistency of strip rolling.

[0049] The control method of the thickness gauge includes:

[0050] Step S10. Controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and controlling the other thickness gauges located at a second position other than the target thickness gauge to keep operating, so that the strip rolling mill adjusts the rolled thickness of the strip according to the thickness measurement data of the strip obtained by the other thickness gauges;

[0051] It should be noted that, generally, a strip rolling mill has multiple stands, so a thickness gauge can be installed at each stand position. For example, a thickness gauge can be installed at the entrance of the first stand, the exit of the first stand, the entrance of the last stand, and the exit of the last stand. Then, the target thickness gauge is any thickness gauge at the aforementioned positions. The position where the target thickness gauge is located is defined as the first position, and the positions where the other thickness gauges are located are defined as the second position. It is understandable that when there are multiple other thickness gauges, there are also multiple corresponding second positions. For example, when the first position is the entrance of the first stand, the second position can be the exit of the first stand, the entrance of the last stand, and the exit of the last stand.

[0052] In step S10, if a thickness gauge among the multiple thickness gauges has been running continuously for a period of time, for example, 8-12 hours, it is necessary to perform an offline calibration on the thickness gauge to prevent measurement errors caused by problems such as zero drift. Based on this, the thickness gauge is designated as the target thickness gauge, i.e., the thickness gauge to be calibrated, and the target thickness gauge is controlled to stop running.

[0053] It is understandable that when the target thickness gauge stops operating, the strip is no longer measured when passing through the first position. Consequently, the industrial computer is no longer able to adjust the rolled thickness at the first position based on the thickness measurement data from the target thickness gauge. For example, if the target thickness gauge is located at the entrance of the first stand and the target thickness gauge stops operating, the strip is no longer measured when passing through the entrance of the first stand. In this case, the industrial computer will not perform feedforward adjustments to the strip thickness at the entrance of the first stand. However, it can subsequently perform feedforward adjustments to the strip thickness based on the thickness measurement data from other thickness gauges to ensure strip quality.

[0054] It can be understood that during the process of strip rolling by the strip rolling mill, one of the thickness gauges can be calibrated within a period of time, and the other thickness gauges can be kept running, so that the thickness measurement data of the strip can be used to adjust the rolled thickness of the strip to ensure the rolling quality of the strip. In this way, the strip rolling mill is ensured not to stop during the calibration of the target thickness gauge, thereby avoiding the problem of thin-gauge strip breaking when the strip rolling mill is restarted after stopping, meeting the demand for thin-gauge strip and improving production efficiency.

[0055] In some embodiments, each of the thickness gauges includes a shutter, and controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating while other thickness gauges located at a second position other than the target thickness gauge continue to operate comprises:

[0056] Step S11. controlling the shutter of the target thickness gauge to close to stop measuring the thickness of the strip;

[0057] Step S12: Control the shutters of the other thickness gauges to open to measure the thickness of the steel strip.

[0058] It should be noted that the shutter of the thickness gauge is a device in the thickness gauge used to control the time that light irradiates the strip. When the control shutter is closed, the thickness gauge cannot measure the thickness of the strip.

[0059] Step S20. Control the target thickness gauge to move to an offline position, calibrate the target thickness gauge at the offline position, and control the target thickness gauge to move to an online position and put it into operation after the calibration is completed, wherein the offline position is outside the rolling production line of the strip steel, and the online position is within the rolling production line of the strip steel.

[0060] It should be noted that, in order not to affect strip production, during calibration of the target thickness gauge, the target thickness gauge is moved to an offline position. The offline position is located outside the strip rolling line, for example, at the back of the rack and at a certain distance from the back of the rack, where the back refers to the side of the rack facing away from the strip. Controlling the target thickness gauge to move to the offline position may include controlling the target thickness gauge to move to the offline position along the length direction of the guide rail.

[0061] It should be noted that the method for calibrating the target thickness gauge at an offline location can refer to the calibration method in the relevant technology and will not be described in detail here.

[0062] It can be understood that after the calibration of the target thickness gauge is completed, the target thickness gauge is moved to the online position and put into operation. As a result, the target thickness gauge can continue to work in the strip rolling production line to provide thickness measurement data for the rolled thickness of the strip to ensure the thickness accuracy of the strip.

[0063] In some embodiments, an edge drop meter and at least one thickness gauge are provided at the exit position of the strip rolling mill, and controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, while other thickness gauges located at a second position other than the target thickness gauge keep operating, comprises:

[0064] The target thickness gauge located at the exit position among the multiple thickness gauges is controlled to stop running, while the other thickness gauges except the target thickness gauge keep running, and the edge drop gauge keeps running, so as to adjust the rolling thickness of the strip at the exit position according to the thickness measurement data of the strip by the edge drop gauge.

[0065] It should be noted that when the strip rolling mill is a cold rolling mill, during the cold rolling process, the deformation of the edge of the roll is smaller than the deformation in the middle due to the different distribution of rolling force, resulting in thinning of the edge. In order to reduce the edge drop after rolling, the rolling parameters of the roll need to be designed to compensate for the edge drop. Based on this, the edge drop information of the strip can be detected by an edge drop meter. For example, an edge drop meter is set at the exit position of the strip rolling mill (i.e., the exit position of the last stand) to detect the edge drop information of the strip at the exit position, so as to further improve the rolling accuracy of the strip by combining the thickness measurement information of the strip.

[0066] It can be understood that when calibrating the target thickness gauge located at the exit position, in order to further ensure the thickness accuracy of the strip, the measurement data of the edge drop meter is used as thickness measurement data to replace the function of the target thickness gauge. That is, when the strip reaches the exit position, the measurement data of the edge drop meter is used as feedforward data to adjust the thickness of the strip to further ensure the thickness accuracy of the strip.

[0067] In some embodiments, the thickness measurement data of the strip steel by the edge drop meter includes: the center thickness data of the strip steel in the width direction of the strip steel.

[0068] It should be noted that steel strips are typically plate-shaped, with the length of the strip defined as the direction extending along the strip's rolling direction, and the width of the strip defined as perpendicular to the length. Therefore, a side drop gauge is used to measure the center thickness of the strip along its width as thickness data at the strip exit, thereby improving strip rolling accuracy. It is understood that the center thickness data along the strip's width is relatively close to the thickness data measured by the thickness gauge, so the center thickness data can be used in place of the thickness data.

[0069] In some embodiments, an edge drop meter is provided at the exit of the strip rolling mill, and the method further comprises:

[0070] Step S30. During the process of the strip rolling mill unit rolling the strip, controlling the edge drop meter to stop operating and the plurality of thickness gauges to keep operating;

[0071] It is understood that after the edge drop meter has been running continuously for a period of time, for example, 8-12 hours, it is necessary to calibrate the edge drop meter to avoid measurement errors caused by zero drift and other issues. During the calibration process, the edge drop meter can be controlled to stop running, while multiple thickness gauges remain in operation to ensure the rolling quality of the strip.

[0072] Optionally, the strip rolling mill is provided with a working roll at the exit position, and before controlling the edge drop meter to stop operating and the plurality of thickness gauges to keep operating, the method further comprises:

[0073] If the raw material convexity of the strip steel is within the preset convexity range, the bending roll parameters and the shifting roll parameters of the working roll are controlled to remain unchanged, and the step of controlling the edge drop meter to stop running and the multiple thickness gauges to keep running is executed, wherein the preset convexity range is 20um (micrometer)-30um, for example, 20um, 22um, 24um, 26um, 28um, 30um, etc.

[0074] It is understood that during the strip rolling process, the edge drop information detected by the edge drop meter can be used to adjust the bending and shifting parameters of the front stand's work rolls to ensure that the edge drop meets the preset requirements. However, during the edge drop meter calibration, since the edge drop information cannot be detected, the strip edge drop cannot be adjusted based on this information.

[0075] It is understood that the smaller the crown of the strip material, the smaller the transverse thickness difference. Therefore, strips with small crowns generally do not require edge drop control, and qualified strips with edge drop can be rolled without changing the shifting and bending positions of the work rolls. Based on this, the embodiment of the present application selects to calibrate the edge drop meter during the rolling process of strips with raw material crowns within the preset crown range, thereby not affecting strip quality.

[0076] Step S40: Control the edge drop instrument to move to the offline position, calibrate the edge drop instrument at the offline position, and control the edge drop instrument to move to the online position and put it into operation after the calibration is completed.

[0077] Based on the above-disclosed content, the embodiment of the present application includes multiple thickness gauges, which are arranged at different positions of the strip rolling mill. During the process of the strip rolling mill rolling the strip, the method includes: controlling the target thickness gauge located at the first position among the multiple thickness gauges to stop running, and keeping the other thickness gauges located at the second position other than the target thickness gauge running, so that the strip rolling mill adjusts the rolled thickness of the strip according to the thickness measurement data of the strip by other thickness gauges; controlling the target thickness gauge to move to the offline position, calibrating the target thickness gauge at the offline position, and controlling the target thickness gauge to move to the online position and put into operation after the calibration is completed, wherein the offline position is outside the strip rolling production line, and the online position is within the strip rolling production line. Therefore, the embodiment of the present application performs offline calibration on one of the thickness gauges during the strip rolling process, while the other thickness gauges remain in operation to provide thickness measurement data for the strip rolling process, thereby ensuring the rolling quality of the strip and avoiding the impact of the strip rolling unit shutdown affecting production efficiency during the thickness gauge calibration process, as well as the problem of thin-gauge strip breaking when the strip rolling unit is restarted, thereby meeting the production needs of continuous and stable rolling of thin-gauge strips and improving strip production efficiency.

[0078] See also Figure 3, shows a structural diagram of the control device of the thickness gauge according to an embodiment of the present application.

[0079] like Figure 3 As shown, according to a second aspect of an embodiment of the present application, a control device 200 for a thickness gauge is provided. The thickness gauges are multiple and are arranged at different positions of a strip rolling mill. During the process of the strip rolling mill rolling a strip, the device 200 includes:

[0080] a first control unit 201, configured to control a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and control other thickness gauges located at second positions other than the target thickness gauge to keep operating, so that the strip rolling mill can adjust the rolled thickness of the strip according to thickness measurement data of the strip obtained by the other thickness gauges;

[0081] The second control unit 202 is used to control the target thickness gauge to move to an offline position, calibrate the target thickness gauge at the offline position, and control the target thickness gauge to move to an online position and put it into operation after the calibration is completed, wherein the offline position is located outside the rolling production line of the strip steel, and the online position is located within the rolling production line of the strip steel.

[0082] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by any method described in the first aspect.

[0083] The computer-readable storage medium may be a portable compact disc read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the computer-readable storage medium of the present application is not limited thereto. In the present application, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0084] The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0085] The program code for performing the operations of the present application can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0086] According to a fourth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by any of the methods described in the first aspect.

[0087] See also Figure 4 , which is a structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present application.

[0088] According to the sixth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement operations performed by any method of the first aspect.

[0089] like Figure 4 As shown, electronic device 400 is implemented as a general-purpose computing device. Components of electronic device 400 may include, but are not limited to, at least one processing unit 410, at least one storage unit 420, and a bus 430 connecting various system components (including storage unit 420 and processing unit 410).

[0090] The storage unit stores program code, which can be executed by the processing unit 410, so that the processing unit 410 executes the steps described in the above "Example Method" section of this specification according to various exemplary embodiments of the present application.

[0091] The storage unit 420 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 421 and / or a cache memory unit 422 , and may further include a read-only memory unit (ROM) 423 .

[0092] The storage unit 420 may also include a program / utility 424 having a set (at least one) of program modules 425, such program modules 425 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0093] Bus 430 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0094] The electronic device 400 can also communicate with one or more external devices 500 (e.g., a keyboard, a pointing device, a Bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 400, and / or any device that enables the electronic device 400 to communicate with one or more other computing devices (e.g., a router, a modem, etc.). Such communication can occur via an input / output (I / O) interface 450. Furthermore, the electronic device 400 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 460. As shown, the network adapter 460 communicates with other modules of the electronic device 400 via a bus 430. It should be understood that, although not shown, other hardware and / or software modules can be used in conjunction with the electronic device 400, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0095] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, each functional unit may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0096] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of units can be a logical function division. In actual implementation, there may be other division methods, 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 units or modules, which can be electrical or other forms.

[0097] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0098] If the integrated 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 computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0099] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A control method for a thickness gauge, characterized in that: There are multiple thickness gauges, and the multiple thickness gauges are arranged at different positions of the strip rolling mill. During the process of the strip rolling mill rolling the strip, the method includes: controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and controlling the other thickness gauges located at a second position other than the target thickness gauge to keep operating, so that the strip rolling mill can adjust the rolled thickness of the strip according to the thickness measurement data of the strip obtained by the other thickness gauges; The target thickness gauge is controlled to move to an offline position, and is calibrated at the offline position. After the calibration is completed, the target thickness gauge is controlled to move to an online position and put into operation, wherein the offline position is outside the rolling production line of the strip steel, and the online position is inside the rolling production line of the strip steel.

2. The method according to claim 1, characterized in that The strip steel rolling mill unit rolls the strip steel, including: The strip steel rolling mill unit rolls the strip steel at a preset speed, and the ratio of the preset speed to the maximum rolling speed of the strip steel rolling mill unit is in the range of 10% to 20%.

3. The method according to claim 1, characterized in that Each of the thickness gauges includes a shutter, and controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating and other thickness gauges located at a second position other than the target thickness gauge to keep operating includes: controlling a shutter of the target thickness gauge to close to stop measuring the thickness of the strip; The shutters of the other thickness gauges are controlled to open to measure the thickness of the steel strip.

4. The method according to claim 1, wherein An edge drop meter and at least one thickness gauge are provided at an exit position of the strip rolling mill, and controlling a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating and other thickness gauges located at a second position other than the target thickness gauge to keep operating, comprises: The target thickness gauge located at the exit position among the multiple thickness gauges is controlled to stop running, while the other thickness gauges except the target thickness gauge keep running, and the edge drop gauge keeps running, so as to adjust the rolling thickness of the strip at the exit position according to the thickness measurement data of the strip by the edge drop gauge.

5. The method according to claim 4, characterized in that The thickness measurement data of the strip steel by the edge drop meter includes: the center thickness data of the strip steel in the width direction of the strip steel.

6. The method according to claim 1, characterized in that An edge drop meter is provided at the exit position of the strip rolling mill, and the method further comprises: During the process of the strip steel rolling mill unit rolling the strip steel, controlling the edge drop meter to stop running and the plurality of thickness gauges to keep running; The edge drop instrument is controlled to move to the offline position, the edge drop instrument is calibrated at the offline position, and after the calibration is completed, the edge drop instrument is controlled to move to the online position and put into operation.

7. The method according to claim 6, characterized in that The strip rolling mill is provided with a working roll at the exit position. Before controlling the edge drop meter to stop operating and the plurality of thickness gauges to keep operating, the method further includes: If the raw material convexity of the strip steel is within the preset convexity range, the bending roll parameters and the shifting roll parameters of the working roll are controlled to remain unchanged, and the step of controlling the edge drop meter to stop running and the multiple thickness gauges to keep running is executed, wherein the preset convexity range is 20um-30um.

8. A control device for a thickness gauge, characterized in that: There are multiple thickness gauges, and the multiple thickness gauges are arranged at different positions of the strip rolling mill. During the process of the strip rolling mill rolling the strip, the device includes: a first control unit, configured to control a target thickness gauge located at a first position among the plurality of thickness gauges to stop operating, and control the other thickness gauges located at a second position other than the target thickness gauge to keep operating, so that the strip rolling mill adjusts the rolled thickness of the strip according to thickness measurement data of the strip obtained by the other thickness gauges; The second control unit is used to control the target thickness gauge to move to an offline position, calibrate the target thickness gauge at the offline position, and control the target thickness gauge to move to an online position and put it into operation after the calibration is completed, wherein the offline position is located outside the rolling production line of the strip steel, and the online position is located within the rolling production line of the strip steel.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores at least one computer program instruction, and the at least one computer program instruction is loaded and executed by a processor to implement the operations performed by any one of the methods according to claims 1-7.

10. An electronic device comprising one or more processors and one or more memories, wherein the one or more memories store at least one program code, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by any one of the methods described in 1-7.

Images