KR20230156756A - Roll steering control system and method for tandem mill - Google Patents

Abstract

A system and related method for controlling roll steering while rolling a metal substrate includes a steering control actuator configured to control the inclination of a working roll on a worktable of a rolling mill, a sensor configured to measure a parameter of a metal substrate upstream of the worktable, and a steering control actuator. and a controller operably connected to the sensor. The controller may create a model for the workbench, determine adjustment values for the workbench, receive measured parameters from the sensor, and determine expected output parameters by adjusting the measured parameters to the adjustment values. The controller may also compare the expected output parameter to the target output parameter and actuate the steering control actuator such that the expected output parameter is within a predefined tolerance of the target parameter.

Description

Roll steering control system and method for tandem mill

Cross-reference to related applications

This application claims the benefit and priority of U.S. Provisional Application No. 63/177,129, filed April 20, 2021, which is incorporated herein by reference in its entirety for all purposes.

field of invention

This application relates generally to metal processing, and more specifically to systems and methods for roll steering control of a rolling mill.

Rolling is a metal forming process in which a metal substrate passes through a pair of work rolls on a workbench. The resulting contact between the metal substrate and the work roll affects the thickness profile, flatness and quality of the metal substrate. Roll steering, the inclination of the work roll relative to the pass line of the metal substrate passing through the workbench, is one mechanism that can be used to influence the parameters of the metal substrate leaving the workbench. Traditionally, roll steering required manual control by the operator to set the steering (tilting) value for each work roll and adjust it during production. This control is time consuming, can be inaccurate due to its susceptibility to operator error, does not take into account actual rolling mill conditions (and therefore can be inaccurate), and does not allow for proper control in real time.

Embodiments protected by this patent are defined by the claims below and not by this Summary. This summary is a high-level overview of various embodiments and introduces some of the concepts that are further described in the Detailed Description section below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used separately to determine the scope of the claimed subject matter. The subject matter should be understood by reference to the appropriate portions of the entire specification, some or all drawings, and each claim of this patent.

According to a particular embodiment, a method of controlling roll steering while rolling a metal substrate includes creating a model for a workstation of a rolling mill based on setup data. Creating the model may include determining adjustment values for the workbench. The method may also include receiving measured parameters for a metal substrate at a location upstream of the workbench from a sensor and determining expected output parameters for the workbench by modifying the measured parameters with adjustment values. In various embodiments, the method includes comparing an expected output parameter to a target output parameter for the workstation and actuating a steering control actuator for the workstation such that the expected output parameter is within a predetermined tolerance of the target output parameter. The steering control actuator is configured to control the inclination of at least one work roll of the workbench relative to the passing line of the metal substrate.

According to various embodiments, a rolling mill includes a steering control system, and the steering control system includes a steering control actuator, sensor, and controller. The steering control actuator controls the tilt of the work rolls on the rolling mill's workbench, and the sensor measures the parameters of the metal substrate upstream of the workbench. The controller is operatively connected to the steering control actuator and sensor and includes a processor and a memory coupled to the processor. The memory contains instructions executable by the processor to create a model for the workbench and determine adjustment values for the workbench, receive measured parameters from sensors, and adjust the measured parameters to the adjustment values to determine expected output parameters. Includes. The memory may also include instructions executable by the processor to compare the expected output parameter to the target output parameter and operate the steering control actuator such that the expected output parameter is within a predefined tolerance of the target parameter.

According to a particular embodiment, a steering control system for a rolling mill includes at least one processor and a memory coupled to the processor. The memory creates a model for the workbench and determines adjustment values for the workbench, receives measured parameters for the metal substrate from sensors upstream of the workbench, and adjusts the measured parameters to the adjustment values to determine the expected output parameters. The memory also includes a plurality of instructions executable by the processor to compare expected output parameters with target output parameters and generate a control response based on the expected output parameters that are outside a predefined tolerance of the target parameters. Can contain executable commands.

The various embodiments described herein may include additional systems, methods, features and advantages, which may not necessarily be explicitly disclosed herein, but will become apparent to those skilled in the art upon review of the following detailed description and accompanying drawings. It will set. It is intended that all such systems, methods, features and advantages be included within this disclosure and protected by the appended claims.

This specification refers to the following attached drawings, and use of the same reference numerals in different drawings is intended to illustrate the same or similar components.
1 illustrates a rolling mill equipped with a steering control system according to an embodiment.
2 illustrates a rolling mill equipped with a steering control system according to an embodiment.
3 is an exemplary method of controlling roll steering with a steering control system according to an embodiment.

Described herein are systems and methods for controlling roll steering of one or more work rolls on a bench of a rolling mill during rolling. The systems and methods described herein can be used with any metal, but may be particularly useful with aluminum or aluminum alloys. In certain embodiments, the systems and methods described herein can automatically control roll steering during rolling. In various embodiments, a model for the workbench is created based on configuration data, and the model includes adjustment values for the workbench. In embodiments where the rolling mill includes a plurality of workstations, a model may be created for each workstation based on setup data for each workstation, with each model including adjustment values specific to that particular workstation. In various embodiments, the adjustment value is a correction value that represents the deviation of the actual performance of the workstation compared to the actual efficiency or expected performance of the workstation.

In certain embodiments, the setup data may include measured data from previous rolling operations, but in other embodiments this need not be the case. In various embodiments, configuration data may include variables measured by sensors, input variables, or various combinations thereof. As some non-limiting examples, the measured parameters may be measured using one or more sensors including, but not limited to, tension meters, gauge meters, flatness rolls, optical sensors, cameras, temperature sensors, combinations thereof, or other sensors desired. It can be measured. Measured parameters may include, but are not limited to, tension of the metal substrate, chemistry and/or composition of the metal substrate, temperature of the metal substrate, etc. The input parameter may be another parameter that is not necessarily measured by the sensor. As some non-limiting examples, input parameters may include, but are not limited to, the width of the metal substrate or the thickness of the metal substrate. The aforementioned parameters are provided for reference purposes and should not be considered limiting as models and/or adjusted values for each workstation can be created using as many different setup data as desired, including more than one measured parameter.

During rolling, sensors can measure parameters of the metal substrate in position relative to the workbench. The controller can use the measured parameters as input to the model to determine the expected output parameters by modifying the measured parameters with adjustment values. The expected output parameter may be compared to a target output parameter for the work station, and a steering control actuator for the work roll stand may be actuated to adjust the expected output parameter to within a predetermined tolerance of the target output parameter. In certain aspects, by modifying the measured parameters with adjustment values based on actual rolling conditions, the controller can more accurately predict output results from the rolling mill. Additionally, comparing expected output parameters (i.e., measurement parameters modified by adjustment values) to target output parameters allows the system to achieve the target output parameters faster and with improved accuracy.

1 illustrates an embodiment of a rolling mill 100 for a metal substrate 102. In the embodiment of Figure 1, rolling mill 100 includes a plurality of workstations 104A-C, although in other embodiments rolling mill 100 includes a single workstation, two workstations, or three or more workstations. So you can include as many workbenches as you want. Each work station 104A-C includes a pair of work rolls 106. Each work roll 106 may be supported by one or more intermediate rolls 108. Bearings or actuators (not shown) may be provided along the intermediate roll 108. The bearing may apply a bearing load to the intermediate roll 108, which transfers the load to the work roll 106, causing the metal substrate 102 to move along a pass line between the work rolls 106 in the processing direction 109. When moving, the work rolls 106 apply work roll pressure to the metal substrate 102.

In various embodiments, each workstation 104A-C may optionally be configured to tilt or tilt the work rolls 106 relative to the passing line of the metal substrate 102 and across the width of the metal substrate (i.e., on the page of FIG. 1 ). and steering control actuators 110A to C that can be used to control the exit direction). That is, the steering control actuators 110A to C in FIG. 1 control the upward or downward inclination or tilt of the work roll 106. Steering control actuators 110A-C may include a variety of suitable devices for adjusting the inclination or tilt of work roll 106, including but not limited to bearings, hydraulic cylinders, backup rolls, combinations thereof, or other suitable devices or mechanisms as desired. It may be a device or mechanism. In certain embodiments, each work roll 106 of a particular workstation (e.g., the upper work roll 106 and the lower work roll 106 of workstation 104A) may have an associated or dedicated steering control actuator. .

In certain embodiments, rolling mill 100 includes a steering control system 112. In the embodiment of FIG. 1 , steering control system 112 includes a plurality of controllers 114A through C and a plurality of sensors 116A through C, but may include controller 114 and/or as shown in FIG. 1 . The number of sensors 116 should not be considered limiting to the present disclosure. In certain embodiments, steering control system 112 need only include one controller and/or one sensor. In certain embodiments, each controller 114A-C and sensor 116A-C is associated with a specific workstation 104A-C, but in other examples this is not necessary. As a non-limiting example, each workstation 104A-C may have an associated sensor 116A-C but the steering control system 112 includes a single controller. Moreover, although in FIG. 1 a single sensor 116A-C is shown associated with each workstation 104A-C, in other embodiments, multiple sensors may be associated with each workstation 104A-C, resulting in multiple sensors. The parameters of can be measured during rolling of the metal substrate 102, as described below.

Each controller 0 (114A-C) includes a processor and memory and is operably coupled to a corresponding sensor (116A-C) and a corresponding steering control actuator (110A-C). Memory is coupled to the processor and contains instructions executable by the processor to perform various functions described in detail below. Sensors 116A-C may be a variety of devices or mechanisms suitable for measuring at least one parameter of metal substrate 102 during rolling. As some non-limiting examples, the sensors 116A-C may each be a tension meter for measuring the tension of the metal substrate 102, a temperature sensor for measuring the temperature of the metal substrate 102, and a temperature sensor for measuring the thickness of the metal substrate 102. A gauge or thickness gauge that measures the position of the metal substrate 102 relative to the centerline of one of the workbenches (e.g., the midpoint of the width of the workbench across the machining direction 109), a position sensor that measures the position of the metal substrate 102 ), an optical sensor, a camera, a combination thereof, or any other suitable sensor as desired. In certain embodiments, sensors 116 may be provided at inter-stand locations between adjacent workstations, but in other embodiments this need not be the case. In the example of Figure 1, sensors 116B-C are positioned between stands and sensor 116A is provided upstream from workbench 104A. Sensors 116A-C need not all be the same type of sensor and/or measure the same parameter, and in certain embodiments, one sensor (e.g., sensor 116A) may measure the first parameter ( e.g., tension), and another sensor (e.g., sensor 116B) measures a second parameter (e.g., thickness). In the embodiment of Figure 1, sensors 116A-C are tension meters that sense the tension of the metal substrate 102.

Optionally, the steering control system 112 may include an exit sensor 118 after the last workstation (e.g., workstation 104C). Exit sensor 118 may be a variety of devices or mechanisms that may be similar or different from the devices used as sensors 116A-C. In one non-limiting embodiment, exit sensor 118 is a flatness sensor that measures the flatness profile of the metal substrate 102 across the width of the metal substrate 102. In certain embodiments, outlet sensor 118 may be operably coupled to one or more of the controllers 114A-C or to another controller operably coupled to another portion of the processing equipment (e.g. , controller for sprayers in the coolant distribution system).

In some embodiments, and as shown in FIG. 1, steering control system 112 may be a feedforward control system, in which parameter data collected by a particular sensor can be used to control a workstation downstream of the particular sensor. It means there is. For example, in Figure 1, sensor 116A is upstream of workstation 104A, and controller 114A uses data from sensor 116A to control workstation 104A. In other embodiments, and as shown in Figure 2, steering control system 112 may be a feedback control system, where parameter data collected by a particular sensor 116 controls a workstation upstream of the particular sensor 116. can be used to For example, in Figure 2, sensor 116A is downstream of workstation 104A, and controller 114A uses data from sensor 116A to control workstation 104A. In further embodiments, steering control system 112 may be both a feedforward and feedback control system, where parametric data collected by a particular sensor may be used to control a station upstream of the particular sensor and a station downstream of the particular sensor. You can.

3, an exemplary method 300 of controlling the work rolls of a rolling mill using the steering control system provided herein is described in detail. In certain aspects, method 300 may be stored as instructions in one or more memories of one or more controllers 114A-C of steering control system 112 that may be executed by one or more processors of one or more controllers 114A-C. You can.

At block 302, method 300 includes creating a model for each station of the rolling mill. For example, in the embodiment of Figure 1, block 302 includes creating a model of each of workstations 104A-C. In various embodiments, creating a model for each station of the rolling mill includes creating a model based on setup data, including one or more measured parameters, one or more input parameters, combinations thereof, and/or other desired data. It may include, but is not limited to. As a non-limiting example, setup data includes both measured and input parameters.

In various embodiments where the configuration data includes one or more measured parameters, the measured parameters may be obtained using one or more sensors that measure parameters of the metal substrate during a current rolling operation or during a previous rolling operation. As some non-limiting examples, the measured parameters may be measured with one or more sensors, including but not limited to tension meters, gauge meters, flatness rolls, optical sensors, cameras, temperature sensors, combinations thereof, or other sensors of interest. You can. The measured parameter(s) include, but are not limited to, the tension of the metal substrate, the chemistry and/or composition of the metal substrate, the chemistry or composition of the metal substrate, the temperature of the metal substrate, combinations thereof, or other parameters as desired. . As a non-limiting example, the setup data used to create the model for the bench may include the tension of the metal strip as measured by the tension gauge during the previous rolling operation, the thickness of the metal substrate as measured by the gauge gauge during the previous rolling operation, and the It may include the temperature of the metal substrate measured by a temperature sensor during the rolling operation.

In various embodiments where the configuration data includes one or more input parameters, the input parameters may be other desired parameters that are not necessarily measured by the sensor. As some non-limiting examples, input parameters may include, but are not limited to, the width of the metal substrate, the chemistry or composition of the metal substrate, and/or the thickness of the metal substrate.

A model for each workbench is created based on the setup data. Creating a model involves generating adjustment values for a specific workstation based on setup data. In various embodiments, the adjustment value is a correction value that represents the deviation of the actual performance of the workstation compared to the actual efficiency or expected performance of the workstation.

At block 304, method 300 includes receiving measured parameters from one or more sensors for the metal substrate during rolling. In certain embodiments, block 304 includes receiving measured parameters from sensors immediately upstream and/or sensors immediately downstream. For example, in the embodiment of Figure 1, block 304 includes receiving measured parameters from each sensor 116A-C upstream of a particular station 104A-C, whereas in the embodiment of Figure 2 In the example, block 304 includes receiving measured parameters from each sensor 116A-B downstream of a particular station 104A-B. As previously discussed, sensors for measuring specific parameters during rolling may include, but are not limited to, tension meters, temperature sensors, gauges or thickness gauges, position sensors, flatness sensors, optical sensors, combinations thereof, or other suitable sensors as desired. It can be a variety of sensors without limitation. In a particular embodiment, block 304 includes receiving a plurality of measured parameters from a plurality of sensors for a particular station on the rolling mill.

At block 306, method 300 includes determining expected output parameters and comparing the expected output parameters to target output parameters. In certain embodiments, determining the expected output parameter includes modifying the measured parameter by an adjustment value determined at block 302. In certain embodiments, modifying measured parameters with adjustment values can more accurately predict the output of a particular workstation because the adjustment values are based on the actual efficiency of the workstation (e.g., based on setup data).

At block 308, the method 300 includes generating a control response based on a comparison between expected output parameters and target output parameters. In some embodiments, block 308 includes actuating a steering control actuator for the workstation such that the expected output parameter determined in block 306 is within a predetermined tolerance of the target output parameter. In various embodiments, generating a control response and actuating a steer control actuator may include sending a control to the steer control actuator to control the tilt or tilt of one or more work rolls of a particular work station. In one non-limiting example, block 308 may include actuating backup rolls, hydraulic cylinders, bearings, combinations thereof, or other suitable steering control actuators as desired.

Optionally, if a particular station is the last station of the rolling mill, method 300 includes receiving measured parameters from an exit sensor 118 downstream of the last station, and based on the measured parameters from the exit sensor 118 and the adjustment values. Determining an expected exit parameter and operating the steering control actuator such that the expected exit parameter is within a predetermined tolerance of the target exit parameter. In one non-limiting example, exit sensor 118 may be a flatness sensor that measures a flatness profile across the width of a metal substrate, where the measured flatness profile is an expected flatness profile in advance of the target flatness profile. It can be used to actuate the steering control actuator to ensure it is within determined tolerances.

As one non-limiting example of controlling roll steering using method 300, block 302 may include creating a model for a workbench, such as workbench 104A, and block 304 may include a sensor and receiving the measured thickness of the metal substrate 102 from 116A (e.g., in this example, sensor 116A is a gauge or thickness sensor). In this example, block 306 may include comparing the expected output thickness from workstation 104A to a target output thickness from workstation 104A. Block 308 includes actuating the steering control actuator 110A and controlling the tilt or tilt of the work roll(s) 106 of the work station 104A such that the expected output thickness is within a predetermined tolerance of the target output thickness. Let it happen.

As another non-limiting example of controlling roll steering using method 300, block 302 may include creating a model for a workbench, such as workbench 104A, and block 304 may include a sensor and receiving a measured flatness profile across the width of the metal substrate 102 from 116A (e.g., in this example, sensor 116A is a flatness sensor). In this example, block 306 may include comparing the expected output flatness profile from workstation 104A to a target output flatness profile from workstation 104A. Block 308 includes actuating the steering control actuator 110A and controlling the tilt or tilt of the work roll(s) 106 of the work station 104A, such that the expected output flatness profile is the target output flatness profile. Ensure that it is within a predetermined tolerance.

As a further non-limiting example of controlling roll steering using method 300, block 302 may include creating a model for a workbench, such as workbench 104A, and block 304 may include creating a model for a workbench ( and receiving a measured position of the metal substrate 102 relative to the centerline of the workbench 104A (e.g., whether the metal substrate 102 is substantially aligned, offset to the left, or right) with the centerline of the workbench 104A. (measures whether it is offset, etc.). In this example, sensor 116A is a position sensor. Block 306 may include comparing an expected output location of the metal substrate 102 to a target output location upon exiting the workbench 104A. Block 308 includes actuating the steering control actuator 110A and controlling the tilt or tilt of the work roll(s) 106 of the work station 104A, such that the expected output position is within a predetermined tolerance of the target output position. Let it happen.

As another non-limiting example of controlling roll steering using method 300, block 302 may include creating a model for a workbench, such as workbench 104A, and block 304 may include a sensor and receiving the measured tension of the metal substrate 102 from 116A (e.g., in this example, sensor 116A is a tension meter). In this example, block 306 may include comparing the expected output tension from worktable 104A to a target output tension from workstation 104A. Block 308 includes actuating the steering control actuator 110A and controlling the tilt or tilt of the work roll(s) 106 of the work station 104A to ensure that the expected output tension is within a predetermined tolerance of the target output tension. Let it happen.

The foregoing embodiments are provided for illustrative purposes and should not be considered limiting of the present disclosure. Moreover, as previously discussed, in certain embodiments, one or more parameters may be used to create a model and/or subsequent control of the workstation using the steering control system 112.

A set of example embodiments, including at least some explicitly listed as “Examples,” are provided below that provide further illustration of various example embodiments in accordance with the concepts described herein. These examples are not mutually exclusive, exhaustive, or limiting; And the present disclosure is not limited to these illustrative examples, but includes all possible modifications and variations within the scope of the issued claims and their equivalents.

Example 1. A method of controlling roll steering while rolling a metal substrate, the method comprising: generating a rolling mill workstation model based on setup data, wherein the step of creating the model determines adjustment values for the workstation; Including the steps of -; Receiving measured parameters for the metal substrate from a sensor at a location upstream of the workbench; modifying the measured parameters with adjustment values to determine expected output parameters for the workbench; comparing expected output parameters to target output parameters for the workbench; and operating a steering control actuator for the workbench such that the expected output parameter is within a predetermined tolerance of the target output parameter, wherein the steer control actuator controls the inclination of at least one work roll of the workbench relative to the passing line of the metal substrate. composed, method.

Example 2. The method of any preceding or subsequent example or combination of examples, wherein the measured parameter includes the measured thickness, the expected output parameter is the expected output thickness, and the target output parameter is the target output thickness.

Example 3. In any preceding or subsequent example or combination of examples, the measured parameter includes a flatness profile measured across the width of the metal substrate, the expected output parameter is the expected output flatness profile, and the target output parameter is Target output flatness profile, method.

Example 4. In any preceding or subsequent example or combination of examples, the measured parameter includes the measured position of the metal substrate relative to the centerline of the workbench, the expected output parameter is the expected output position, and the target output parameter is the target output. Location, method.

Example 5. In any preceding or subsequent example or combination of examples, the workbench is a first workbench of the plurality of workbenches, and the method creates a model for each workbench of the plurality of workbenches based on setup data for each workbench. A method comprising the step of generating.

Example 6. The method of any preceding or subsequent example or combination of examples, wherein actuating the steering control actuator includes controlling at least one hydraulic cylinder or at least one backup roll.

Example 7. The method of any preceding or subsequent example or combination of examples, wherein the measured parameter includes the tension of the metal substrate, the expected output parameter is the expected tension, and the target output parameter is the target tension.

Example 8. In any preceding or subsequent example or combination of examples, creating a model for the workbench includes creating the model prior to rolling the metal substrate, and the setup data includes data from a previous rolling operation. Including, method.

Example 9. The method of any preceding or subsequent example or combination of examples, comprising: receiving from a sensor a measured thickness around the metal substrate at a location after the last station of the rolling mill; Correcting the measured thickness with an adjustment value to determine the expected thickness of the workbench; Comparing the target thickness with the expected thickness of the workbench; and actuating a steering control actuator for the workbench such that the expected thickness is within a predetermined tolerance of the target thickness.

Example 10. The method of any preceding or subsequent example or combination of examples, wherein the workstation is a first workstation, the rolling mill further includes a second workstation upstream of the first workstation, and the sensor is between the first workstation and the second workstation. The method includes: generating a model of a second workbench based on setup data, wherein generating a model for the second workbench includes determining adjustment values for the second workbench; and after rolling the metal substrate, updating the model for the second workbench by updating adjustment values based on measured parameters of the metal substrate during rolling from sensors that are outside the predetermined tolerance of the target output parameters for the second workbench. A method further comprising:

Example 11. A rolling mill including a steering control system, the steering control system comprising: a steering control actuator configured to control the inclination of a work roll of a worktable of the rolling mill; A sensor configured to measure parameters of the metal substrate upstream of the workbench; and a controller operably coupled with the steering control actuator and sensor, the controller comprising a processor and a memory coupled to the processor, the memory generating a model for the workstation and determining adjustment values for the workstation; ; receive measured parameters from the sensor; Adjust the measured parameters with adjustment values to determine expected output parameters; compare expected output parameters and target output parameters; and instructions executable by the processor to operate the steering control actuator such that the expected output parameter is within a predefined tolerance of the target parameter.

Example 12. The rolling mill of any preceding or subsequent example or combination of examples, further comprising a work station and a work roll, the work roll comprising an upper work roll or a lower work roll configured to contact the metal substrate during rolling.

Example 13. In any preceding or subsequent example or combination of examples, the workbench is a first workbench of a plurality of workbenches, and the memory generates a model for each workbench of the plurality of workbenches based on configuration data for each workbench. A rolling mill, containing instructions executable by a processor.

Example 14. The rolling mill of any preceding or subsequent example or combination of examples, wherein the measured parameter includes the measured thickness, the expected output parameter is the expected output thickness, and the target output parameter is the target output thickness.

Example 15. In any preceding or subsequent example or combination of examples, the measured parameter includes a flatness profile measured across the width of the metal substrate, the expected output parameter is the expected output flatness profile, and the target output parameter is Target output flatness profile, rolling mill.

Example 16. In any preceding or subsequent example or combination of examples, the measured parameter includes the measured position of the metal substrate relative to the centerline of the workbench, the expected output parameter is the expected output position, and the target output parameter is the target output. Location, rolling mill.

Example 17. The rolling mill of any preceding or subsequent example or combination of examples, wherein the steering control actuator includes controlling at least one hydraulic cylinder or at least one backup roll.

Example 18. A steering control system for a rolling mill, the steering control system comprising: at least one processor; comprising a memory coupled to the processor, wherein the memory generates a model for the workbench and determines adjustment values for the workbench; receive measured parameters for the metal substrate from a sensor upstream of the workbench; Adjust the measured parameters with adjustment values to determine expected output parameters; compare expected output parameters and target output parameters; and a plurality of instructions executable by the processor to generate a control response based on an expected output parameter that falls outside a predefined tolerance of the target parameter.

Example 19. The steering control system of any preceding or subsequent example or combination of examples, wherein the processor is configured to generate a control response by actuating a steering control actuator of the work bench of the rolling mill to control the inclination of the work roll of the work bench.

Example 20. The steering control of any preceding or subsequent example or combination of examples, wherein the measured parameters include at least one of the thickness of the metal substrate, the flatness of the metal substrate, and the position of the metal substrate relative to the centerline of the rolling mill. system.

Although the subject matter of the embodiments is specifically described herein to satisfy legal requirements, such description is not necessarily intended to limit the scope of the claims. The claimed subject matter may be implemented in different ways, may include different elements or steps, and may be used in conjunction with other existing or future technologies. These descriptions should not be construed as implying any particular order or arrangement among or among the various steps or elements, except where the order of individual steps or arrangement of elements is explicitly described. In particular, directional references such as "top", "bottom", "top", "bottom", "left", "right", "front", and "back" refer to the drawing (or drawings) to which the component and orientation are referenced. It is intended to refer to the directions shown and described. Reference to an embodiment means that element A and/or element B encompasses embodiments in which element A alone, element B alone, or elements A and B taken together.

The aspects described above are merely examples of possible implementations and are merely explained for a clear understanding of the principles of the present disclosure. Many variations and modifications may be made to the embodiment(s) described above without departing substantially from the spirit and principles of the present disclosure. All such modifications and variations are intended to be included within the scope of this disclosure, and all possible claims for individual aspects or combinations of elements or steps are intended to be supported by this disclosure. Moreover, although specific terms are used in this specification and the following claims, they are used in a general and descriptive sense only and are not intended to limit the described embodiments or the following claims.

Claims (20)

A method for controlling roll steering while rolling a metal substrate, comprising:
Creating a model for a work stand of a rolling mill based on setup data, wherein creating the model includes determining adjustment values for the work stand. -;
receiving measured parameters for a metal substrate from a sensor positioned upstream of the workbench;
modifying the measured parameters with the adjusted values to determine expected output parameters for the workbench;
comparing the expected output parameters to target output parameters for the workstation; and
Actuating a steering control actuator for the workbench to control the tilt of at least one work roll of the workbench relative to the through line of the metal substrate such that the expected output parameter is within a predetermined tolerance of the target output parameter. Method, including. The method of claim 1, wherein the measured parameter includes a measured thickness, the expected output parameter is an expected output thickness and the target output parameter is a target output thickness. 2. The method of claim 1, wherein the measured parameter comprises a flatness profile measured across the width of the metal substrate, the expected output parameter is an expected output flatness profile and the target output parameter is a target output flatness profile. . The method of claim 1, wherein the measured parameter includes a measured position of the metal substrate relative to the centerline of the workbench, the expected output parameter is an expected output position, and the target output parameter is a target output position. The method of claim 1, wherein the measured parameter includes tension of the metal substrate, the expected output parameter is the expected tension, and the target output parameter is the target tension. The method of claim 1, wherein the workbench is a first workbench among a plurality of workbenches, and the method includes generating a model for each workbench of the plurality of workbenches based on setting data for each workbench. 2. The method of claim 1, wherein actuating the steering control actuator includes controlling at least one hydraulic cylinder or at least one backup roll. The method of claim 1, wherein creating the model for the workbench includes creating the model prior to rolling the metal substrate, and wherein the setup data includes data from a previous rolling operation. According to paragraph 1,
receiving from a sensor a measured thickness around the metal substrate at a location after the last station of the rolling mill;
determining an expected thickness for the workbench by modifying the measured thickness with the adjustment value;
comparing the expected thickness for the workbench with a target thickness; and
The method further comprising actuating a steering control actuator for the workstation such that the expected thickness is within a predetermined tolerance of the target thickness. The method of claim 1, wherein the work station is a first work station, the rolling mill further includes a second work station upstream of the first work station, the sensor is between the first work station and the second work station, and the method comprises: :
generating a model of a second workbench based on setup data, wherein generating the model for the second workbench includes determining an adjustment value for the second workbench; and
After rolling the metal substrate, the adjustment value is updated based on the parameters of the metal substrate measured by the sensor during rolling outside the predetermined tolerance of the target output parameters for the second workbench. The method further comprising updating the model. A rolling mill including a steering control system, the steering control system comprising:
a steering control actuator configured to control an inclination of a work roll on a worktable of the rolling mill;
A sensor configured to measure parameters of the metal substrate upstream of the workbench; and
a controller operatively coupled to the steering control actuator and the sensor, the controller comprising a processor and a memory coupled to the processor, the memory configured to:
create a model for the workbench and determine adjustment values for the workbench;
receive the measured parameter from the sensor;
adjusting the measured parameter to the adjustment value to determine an expected output parameter;
compare the expected output parameters and target output parameters; and
and executable instructions for operating the steering control actuator such that the expected output parameter is within a predefined tolerance of the target parameter. 12. The rolling mill of claim 11, further comprising the work table and the work roll, the work roll including an upper work roll and/or a lower work roll configured to contact the metal substrate during rolling. The method of claim 12, wherein the workbench is a first workbench among a plurality of workbenches, and the memory is executed by the processor to generate a model for each workbench of the plurality of workbenches based on setting data for each workbench. Rolling mill, including possible instructions. 12. The rolling mill of claim 11, wherein the measured parameter includes a measured thickness, the expected output parameter is an expected output thickness, and the target output parameter is a target output thickness. 12. The method of claim 11, wherein the measured parameter comprises a flatness profile measured across the width of the metal substrate, the expected output parameter is an expected output flatness profile, and the target output parameter is a target output flatness profile. , rolling mill. 12. The rolling mill of claim 11, wherein the measured parameter includes a measured position of the metal substrate relative to the centerline of the workbench, the expected output parameter is an expected output position, and the target output parameter is a target output position. 12. The rolling mill of claim 11, wherein the steering control actuator includes at least one hydraulic cylinder or at least one backup roll. A steering control system for a rolling mill, the steering control system comprising:
at least one processor;
a memory coupled to the processor, the memory comprising:
create a model for the workbench and determine adjustment values for the workbench;
receive measured parameters for the metal substrate from a sensor upstream of the workbench;
adjusting the measured parameters to adjustment values to determine expected output parameters;
compare the expected output parameters and target output parameters; and
A steering control system comprising a plurality of instructions executable by a processor to generate a control response based on the expected output parameter outside a predetermined tolerance of the target parameter. 19. The steering control system of claim 18, wherein the processor is configured to generate the control response by actuating a steering control actuator of the work bench of the rolling mill to control the tilt of a work roll of the work bench. 19. The steering control system of claim 18, wherein the measured parameters include at least one of a thickness of the metal substrate, a flatness of the metal substrate, and a position of the metal substrate relative to the centerline of the rolling mill.