Self-adaptive positioning control method and system for anti-winding guide plate of six-high single stand reversing rolling mill

Abstract

The application discloses a kind of six-roll single stand reversible rolling mill anti-entangling guide plate self-adapting positioning control method and system, belong to metallurgical rolling automation field.For frequent replacement of work roll, guide plate 40 ° oblique movement, positioning difficulty caused by field vibration and valve inner unloading, with Siemens S7-400 PLC as core, SSI sensor as detection unit, using touch roll to collect reference value, reverse positioning to reserve 2mm gap, control mode of multi-ramp real-time dynamic correction, the gap deviation is stabilized within ±1mm.The application does not need complex calculation, strong anti-interference, simple operation, high precision, can be widely applied to similar difficult positioning industrial equipment, significantly improve the safety and production efficiency of rolling mill.

Description

Technical Field

[0001] This invention belongs to the field of automatic control technology for metallurgical rolling equipment. Specifically, this invention relates to an adaptive positioning control method and system for an anti-winding guide plate of a six-roll single-stand reversible rolling mill. Background Technology

[0002] The six-roll single-stand reversible rolling mill is the core equipment in strip rolling production. The anti-winding guide plate needs to maintain a safe clearance of approximately 2mm with the work rolls. Too large a clearance will cause strip winding accidents, while too small a clearance will accelerate wear on the guide plate and work rolls. Existing technology has the following drawbacks: 1. The work rolls need to be replaced after every 4 to 5 coils of steel are rolled, and the frequent changes in the roll diameter cause the fixed positioning reference to fail. 2. The anti-tangling guide plate adopts a 40° downward inclined movement mechanism. Conventional linear positioning calculations are complex and cannot accurately match changes in roller diameter. 3. Severe vibrations in the production site and internal unloading of hydraulic valves can easily cause guide plate position drift and frequent positioning errors exceeding tolerance. 4. Traditional methods rely on repeated manual adjustments, which are cumbersome, prone to human error, and have a low degree of automation.

[0003] An adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill is provided, particularly regarding how to improve the control accuracy of the safety clearance between the anti-winding guide plate and the work roll. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides an adaptive positioning control method for an anti-winding guide plate in a six-roll single-stand reversible rolling mill, with the purpose of improving the accuracy of controlling the safety clearance between the anti-winding guide plate and the work rolls.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an adaptive positioning control method for an anti-winding guide plate of a six-roll single-stand reversible rolling mill, comprising the following steps: Move the anti-tangling guide plate downwards along a preset oblique direction until it contacts the surface of the work roller; In response to the confirmation command, the current displacement detection value is locked as the reference position value; Subtract the preset safety gap value from the reference position value to obtain the target set position value of the anti-tangling guide plate; The anti-entanglement guide plate is moved upward along the opposite oblique direction to the target set position value; Real-time acquisition of the positional deviation between the actual position value of the anti-tangling guide plate and the target set position value; When the position deviation exceeds the preset allowable range, a corresponding correction control signal is output according to the different grade intervals in which the position deviation is located, so as to drive the actuator to adjust the position of the anti-tangling guide plate.

[0006] The preset oblique direction is a direction that forms a 40° angle with the horizontal direction.

[0007] The preset safety gap value is 2mm; the preset allowable range is ±1mm.

[0008] The step of locking the current displacement detection value as the reference position value specifically includes: reading the detection value of the absolute displacement sensor through the high-speed counting module of the programmable logic controller, and locking the detection value as the reference position value; The programmable logic controller is a Siemens S7-400 PLC, and the absolute displacement sensor is an SSI absolute displacement sensor.

[0009] The positional deviation is expressed as a percentage of the relative deviation based on the target set position value; The specific steps for outputting corresponding correction control signals based on the different grade intervals in which the position deviation lies include: When the position deviation is ≤-10%, a correction control signal of -26% is output; When -10% < the position deviation ≤ -3%, output a correction control signal of -19%; When -3% < the position deviation < 3%, output a 0% correction control signal; When 3% ≤ the position deviation < 10%, output a correction control signal of 18%; When the position deviation is ≥10%, a 25% correction control signal is output.

[0010] The corresponding correction control signal is output through a multi-speed ramp generator built into the programmable logic controller.

[0011] The aforementioned adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill further includes the following steps: After each replacement of the work roll, the step of moving the anti-tangling guide plate downward along a preset oblique direction until it contacts the surface of the work roll is repeated until the step of outputting the correction control signal is executed again.

[0012] The step of moving the anti-tangling guide plate downward along a preset oblique direction until it contacts the surface of the work roller is specifically achieved by manually controlling the anti-tangling guide plate to move downward until the lower surface of the anti-tangling guide plate presses against the surface of the work roller; the confirmation command is triggered by manually clicking the positioning confirmation button.

[0013] The present invention also provides an adaptive positioning control system for an anti-tangling guide plate of a six-roll single-stand reversible rolling mill, comprising: The actuator includes an anti-entanglement guide plate, a hydraulic servo valve, and an actuator cylinder, wherein the anti-entanglement guide plate is installed at an angle; A detection unit is used to detect the displacement of the anti-tangling guide plate; The control unit, connected to both the detection unit and the actuator, includes a high-speed counting module, a positioning function block, and a multi-segment speed ramp generator. The control unit is configured to execute the adaptive positioning control method for the anti-tangling guide plate of the six-roll single-stand reversible rolling mill. The human-computer interaction unit includes a positioning confirmation button and a touch screen.

[0014] The anti-tangling guide plate is installed at an angle of 40°; the detection unit is an SSI absolute displacement sensor; and the control unit is a Siemens S7-400 PLC.

[0015] The adaptive positioning control method for the anti-winding guide plate of the six-roll single-stand reversible rolling mill of the present invention, by adopting a control mode of collecting reference values ​​by touch rollers, maintaining a 2mm gap in reverse positioning, and real-time dynamic correction by multiple slopes, stabilizes the gap deviation within ±1mm, which can improve the control accuracy of the safety gap between the anti-winding guide plate and the work roll. Moreover, the present invention does not require complex calculations, has strong anti-interference, is easy to operate, and has high precision. It can be widely applied to similar difficult-to-position industrial equipment, significantly improving the operating safety and production efficiency of the rolling mill. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following: Figure 1 This is a flowchart of the adaptive positioning control method for the anti-tangling guide plate of a six-roll single-stand reversible rolling mill according to the present invention; Figure 2 This is a schematic diagram illustrating the position deviation classification of the multi-segment speed ramp generator of the present invention; Figure 3 This is a schematic diagram showing the correspondence between the output control quantities of the multi-segment speed ramp generator of the present invention. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and to facilitate its implementation.

[0018] Firstly, such as Figure 1 As shown, this embodiment of the invention provides an adaptive positioning control method for an anti-winding guide plate of a six-roll single-stand reversible rolling mill, comprising the following steps: S1. Move the anti-tangling guide plate downwards along the preset oblique direction until it contacts the surface of the work roller; S2. In response to the confirmation command, lock the current displacement detection value as the reference position value; S3. Subtract the preset safety gap value from the reference position value to obtain the target set position value of the anti-tangling guide plate; S4. Move the anti-tangling guide plate upwards in the opposite oblique direction to the target set position value; S5. Real-time acquisition of the position deviation between the actual position value and the target set position value of the anti-tangling guide plate; S6. When the position deviation exceeds the preset allowable range, output the corresponding correction control signal according to the different grade intervals of the position deviation to drive the actuator to adjust the position of the anti-tangling guide plate.

[0019] Specifically, this invention uses a six-roll single-stand reversible rolling mill as an application scenario, which is equipped with an anti-tangle guide plate adaptive positioning control system. The core control unit of the system adopts a Siemens S7-400 programmable logic controller (hereinafter referred to as PLC) and is configured with an FM450 high-speed counting module. The displacement detection unit adopts an SSI absolute displacement sensor, which is connected to the high-speed counting module of the PLC through an SSI synchronous serial interface. The actuator includes an anti-tangle guide plate installed at a 40° angle, a hydraulic servo valve, and an actuator cylinder. The human-machine interaction unit includes a positioning confirmation button and a touch screen. The following describes the process in conjunction with... Figure 1 The flowchart shown below provides a detailed description of the control method of this invention.

[0020] In step S1 above, the preset oblique direction is a direction that forms a 40° angle with the horizontal direction.

[0021] In step S1 above, locking the current displacement detection value as the reference position value specifically includes: reading the detection value of the absolute displacement sensor through the high-speed counting module of the programmable logic controller and locking the detection value as the reference position value; the programmable logic controller is a Siemens S7-400 PLC and the absolute displacement sensor is an SSI absolute displacement sensor.

[0022] like Figure 1 As shown, after the rolling mill completes the work roll replacement, the operator issues a command through the human-machine interface to control the anti-winding guide plate to move downwards along a preset inclined direction. In this embodiment of the invention, the mounting inclined surface of the anti-winding guide plate forms a 40° angle with the horizontal direction, so its movement trajectory also follows this 40° inclined line. The PLC drives the actuator cylinder through a hydraulic servo valve, causing the anti-winding guide plate to gradually descend until the lower surface of the anti-winding guide plate makes physical contact with the upper surface of the current work roll, and the lower surface of the anti-winding guide plate presses against the surface of the work roll with appropriate pressure. After the operator confirms reliable contact visually or with the aid of proximity switches or other auxiliary means, they prepare to perform the next reference acquisition operation.

[0023] It should be noted that the movement speed of the anti-tangling guide plate should not be too fast during the contact roller process to avoid impact damage to the surface of the work roller. In this embodiment of the invention, the PLC executes the contact roller action by controlling the descent speed to within 5 mm / s, and the operator can also perform inching control through manual mode.

[0024] In step S2 above, the preset safety gap value is 2mm; the preset allowable range is ±1mm.

[0025] After confirming that the anti-winding guide plate has reliably contacted the roller, the operator manually presses the positioning confirmation button on the operation panel. Pressing this button generates a confirmation command, which is captured by the PLC's digital input module. In response to this command, the PLC immediately reads the current displacement detection value from the SSI absolute displacement sensor via the FM450 high-speed counting module. Since the SSI sensor is absolute, its output data directly corresponds to the absolute position of the anti-winding guide plate along its oblique movement, eliminating the need for zeroing or conversion. The PLC locks and stores this reading in its internal holding register as the roller surface reference position value for this positioning control. This reference position value represents the oblique displacement coordinates when the lower surface of the anti-winding guide plate is exactly in contact with the work roller surface.

[0026] For example, in an actual operation, if the SSI sensor reading is 160.00 mm when the roller is touched, the PLC will record 160.00 mm as the reference position value. This value will be used in subsequent calculations.

[0027] In step S3 above, the positioning function block inside the PLC subtracts a preset safety gap value from the reference position value according to the pre-stored process parameters to obtain the target set position value of the anti-tangling guide plate. In this embodiment of the invention, the process requires a 2mm safety gap between the lower surface of the anti-tangling guide plate and the surface of the work roller; therefore, the preset safety gap value is set to 2mm. That is, the target set position value = reference position value - 2mm.

[0028] Using the previous example, if the reference position is 160.00mm, then the target position is 158.00mm. This value indicates that the anti-tangling guide needs to move to a position with an oblique displacement of 158.00mm, at which point the gap between its lower surface and the surface of the work roller is exactly 2mm.

[0029] The preset safety clearance value of 2mm is determined based on a combination of rolling process requirements and equipment safety clearance. This value can be modified via the touchscreen to adapt to the process requirements of different product specifications.

[0030] In step S4 above, after obtaining the target set position value, the PLC controls the anti-winding guide plate to move upward in an oblique direction opposite to the contact roller direction. Since the anti-winding guide plate moves downward at a 40° angle during the contact roller stage, the PLC command execution mechanism moves upward at a 40° angle, causing the anti-winding guide plate to gradually move away from the surface of the work roller. During the movement, the SSI absolute displacement sensor feeds back the actual displacement value of the anti-winding guide plate to the PLC's high-speed counting module in real time at a sampling frequency of not less than 100Hz. The PLC compares the actual displacement value with the target set position value to form a closed-loop control. When the actual displacement value converges to within the allowable error range (e.g., ±0.1mm) of the target set position value, the PLC stops the movement command, and the anti-winding guide plate stably stops at the target position.

[0031] Taking the above example, the PLC drives the anti-tangling guide plate to move upwards until the SSI sensor feedback value reaches 158.00mm. At this time, the gap between the lower surface of the anti-tangling guide plate and the surface of the work roller is precisely maintained at 2mm. This reverse positioning process is usually completed within a few seconds, and due to the use of closed-loop control, the positioning accuracy is high and there is no oscillation.

[0032] In step S5 above, after the rolling mill enters normal production operation, the PLC continuously acquires the actual displacement value fed back by the SSI absolute displacement sensor at fixed intervals, and calculates the position deviation between the actual displacement value and the aforementioned target set position value in real time. The formula for calculating the position deviation is: Position Deviation = Actual Displacement Value - Target Set Position Value. This deviation value may be positive (e.g., if the actual position is higher than the target position, the gap is too large) or negative (e.g., if the actual position is lower than the target position, the gap is too small).

[0033] In step S5 above, the position deviation is expressed as a percentage of relative deviation based on the target set position value. The PLC converts the absolute deviation into a percentage of relative deviation based on the target set position value for subsequent grading judgment. Relative deviation percentage = (position deviation / target set position value) × 100%. In this embodiment of the invention, since the target set position value is between 150mm and 170mm (depending on the roller diameter), a 2mm absolute deviation corresponds to a relative deviation of approximately 1.2% to 1.3%, and this conversion does not affect the practical application of the grading logic.

[0034] The PLC internally sets a preset allowable range to determine whether dynamic correction needs to be initiated. In this embodiment of the invention, the allowable range is ±1mm, which is the absolute deviation. When the absolute value of the position deviation calculated in real time is less than or equal to 1mm, it is considered that the safe clearance between the anti-winding guide plate and the working roller is within the acceptable range. The PLC does not output a correction control signal, the anti-winding guide plate maintains its current position, and the system continues to monitor.

[0035] When the absolute value of the position deviation exceeds 1mm, the PLC automatically activates the built-in multi-speed ramp generator. This generator, based on the relative percentage range of the position deviation, outputs a correction control signal of corresponding amplitude according to a predetermined grading logic. The correction control signal is expressed as a percentage, representing the control amount of the hydraulic servo valve's opening, i.e., the proportion relative to the maximum opening. A positive signal indicates that the anti-tangling guide plate is driven to move closer to the work roller (upwards), and a negative signal indicates that the anti-tangling guide plate is driven to move away from the work roller (downwards).

[0036] The system outputs corresponding correction control signals based on the different grade intervals of the position deviation, and this output is achieved through a multi-stage speed ramp generator built into the programmable logic controller. For example... Figure 2 and Figure 3 As shown, the hierarchical logic in this embodiment of the invention is as follows: (1) When the relative deviation percentage is ≤-10%, that is, the actual displacement value is more than 10% lower than the target set position value, the multi-speed ramp generator outputs a correction control signal of -26%. At this time, the anti-entanglement guide plate is too far away from the working roller, the gap is too large, and it needs to move downward (negative direction) back quickly.

[0037] (2) When -10% < relative deviation percentage ≤ -3%, the multi-speed ramp generator outputs a correction control signal of -19%. At this time, the deviation is moderate, and a gentler correction slope is adopted.

[0038] (3) When -3% < relative deviation percentage < 3%, the multi-speed ramp generator outputs a 0% correction control signal. This range is a dead zone and no correction is performed to avoid frequent actions caused by small fluctuations.

[0039] (4) When 3% ≤ relative deviation percentage < 10%, the multi-speed ramp generator outputs an 18% correction control signal. At this time, the actual position is slightly higher than the target position, indicating that the gap is too small and a small upward movement (positive) is required for a pullback.

[0040] (5) When the relative deviation percentage is ≥10%, the multi-speed ramp generator outputs a 25% correction control signal. At this time, the anti-tangling guide plate is too close to the working roller, the gap is too small, and it needs to move upward quickly to return.

[0041] After receiving the correction control signal, the actuator opens the hydraulic servo valve proportionally, driving the actuator cylinder to make a slight adjustment to the position of the anti-entanglement guide plate. During the adjustment process, the PLC continuously monitors the position deviation, and once the deviation falls within ±1mm, the correction output immediately stops. The entire correction process is smooth, shock-free, and does not produce repeated oscillations.

[0042] During the correction process, the anti-tangling guide plate rise / fall indicator light on the control panel will flash alternately. This is a feedback indication of normal system adjustment and not a malfunction of the equipment. The operator does not need to intervene.

[0043] like Figure 1 As shown in the figure, the adaptive positioning control method for the anti-winding guide plate of the six-roll single-stand reversible rolling mill of the present invention further includes the following steps: S7. After each replacement of the work roll, repeat the step of moving the anti-tangling guide plate downward along the preset oblique direction until it contacts the surface of the work roll, and then output the correction control signal.

[0044] The anti-tangling guide plate is moved downward along a preset oblique direction until it contacts the surface of the work roller. Specifically, the anti-tangling guide plate is manually controlled to move downward until the lower surface of the anti-tangling guide plate presses against the surface of the work roller. The confirmation command is triggered by manually clicking the positioning confirmation button.

[0045] After each work roll change, the previously stored reference position value becomes inapplicable due to potential differences in diameter between the new and old work rolls. Therefore, this method stipulates that all the above steps must be repeated after each roll change, starting from the downward movement of the anti-winding guide plate to its contact with the work roll surface, until reverse positioning is completed and dynamic monitoring begins. The PLC can trigger a new round of reference acquisition by detecting the roll change signal or by the operator issuing a reset command via a touchscreen. This cyclical reset mechanism ensures that the safety clearance between the anti-winding guide plate and the work roll is always based on the actual roll surface position of the current work roll after each roll change, fundamentally eliminating the impact of roll diameter variations on positioning accuracy.

[0046] Secondly, embodiments of the present invention also provide an adaptive positioning control system for an anti-tangling guide plate of a six-roll single-stand reversible rolling mill, comprising: The actuator includes an anti-entanglement guide plate, a hydraulic servo valve, and an actuator cylinder. The anti-entanglement guide plate is installed at an angle. The detection unit is used to detect the displacement of the anti-tangling guide plate; The control unit, connected to both the detection unit and the actuator, includes a high-speed counting module, a positioning function block, and a multi-speed ramp generator. The control unit is configured to execute the aforementioned adaptive positioning control method for the anti-tangling guide plate of a six-roll single-stand reversible rolling mill; and The human-computer interaction unit includes a positioning confirmation button and a touch screen.

[0047] In this embodiment of the invention, the anti-tangling guide plate is installed at an angle of 40°; the hydraulic servo valve receives the correction control signal output by the PLC, adjusts the flow and direction of the hydraulic oil, drives the piston rod of the actuator cylinder to extend and retract, and then drives the anti-tangling guide plate to move up and down along a 40° oblique trajectory.

[0048] In this embodiment of the invention, the detection unit is an SSI absolute displacement sensor. The movable end of the detection unit is mechanically connected to the anti-tangling guide plate, and the fixed end is mounted on the rolling mill stand. The sensor is connected to the high-speed counting module of the PLC through an SSI synchronous serial interface, and outputs the absolute displacement value of the anti-tangling guide plate in real time. The differential signal transmission method of the SSI synchronous serial interface ensures data reliability under strong electromagnetic interference environments.

[0049] In this embodiment of the invention, the control unit is a Siemens S7-400 PLC, equipped with an FM450 high-speed counting module, a positioning function block, and a multi-stage ramp generator. The high-speed counting module receives and processes the digital signals from the SSI sensor. The positioning function block is responsible for calculating the target set position value and for closed-loop PID control during the reverse positioning process. The multi-stage ramp generator outputs corresponding correction control signals based on the position deviation according to the aforementioned hierarchical logic.

[0050] In this embodiment of the invention, the human-machine interface unit includes a positioning confirmation button and a touchscreen. The positioning confirmation button is a self-resetting button, installed on the operating table, used to trigger the locking of the reference position value. The touchscreen is used to display information such as the current displacement value, position deviation, and correction output value in real time, and provides a parameter setting interface, allowing authorized personnel to modify process parameters such as preset safety clearance values, allowable deviation ranges, and graded thresholds.

[0051] After being applied in multiple six-roll single-stand reversible rolling mills, this system has demonstrated that the safe clearance between the anti-winding guide plate and the work roll can be stably controlled within the range of 2mm ± 1mm. Furthermore, no manual measurement of the roll diameter or complex geometric calculations are required after roll changing, making operation simple and highly reliable. The control logic can also be adapted to similar equipment with inclined motion trajectories and frequently changing reference dimensions, making it widely applicable.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An adaptive positioning control method for an anti-winding guide plate of a six-roll single-stand reversible rolling mill, characterized in that, Includes the following steps: Move the anti-tangling guide plate downwards along a preset oblique direction until it contacts the surface of the work roller; In response to the confirmation command, the current displacement detection value is locked as the reference position value; Subtract the preset safety gap value from the reference position value to obtain the target set position value of the anti-tangling guide plate; The anti-entanglement guide plate is moved upward along the opposite oblique direction to the target set position value; Real-time acquisition of the positional deviation between the actual position value of the anti-tangling guide plate and the target set position value; When the position deviation exceeds the preset allowable range, a corresponding correction control signal is output according to the different grade intervals in which the position deviation is located, so as to drive the actuator to adjust the position of the anti-tangling guide plate.

2. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The preset oblique direction is a direction that forms a 40° angle with the horizontal direction.

3. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The preset safety gap value is 2mm; the preset allowable range is ±1mm.

4. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The step of locking the current displacement detection value as the reference position value specifically includes: reading the detection value of the absolute displacement sensor through the high-speed counting module of the programmable logic controller, and locking the detection value as the reference position value; The programmable logic controller is a Siemens S7-400 PLC, and the absolute displacement sensor is an SSI absolute displacement sensor.

5. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The positional deviation is expressed as a percentage of the relative deviation based on the target set position value; The specific steps for outputting corresponding correction control signals based on the different grade intervals in which the position deviation lies include: When the position deviation is ≤-10%, a correction control signal of -26% is output; When -10% < the position deviation ≤ -3%, output a correction control signal of -19%; When -3% < the position deviation < 3%, output a 0% correction control signal; When 3% ≤ the position deviation < 10%, output a correction control signal of 18%; When the position deviation is ≥10%, a 25% correction control signal is output.

6. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The corresponding correction control signal is output through a multi-speed ramp generator built into the programmable logic controller.

7. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, It also includes the following steps: After each replacement of the work roll, the step of moving the anti-tangling guide plate downward along a preset oblique direction until it contacts the surface of the work roll is repeated until the step of outputting the correction control signal is executed again.

8. The adaptive positioning control method for the anti-winding guide plate of a six-roll single-stand reversible rolling mill according to claim 1, characterized in that, The step of moving the anti-tangling guide plate downward along a preset oblique direction until it contacts the surface of the work roller is specifically achieved by manually controlling the anti-tangling guide plate to move downward until the lower surface of the anti-tangling guide plate presses against the surface of the work roller; the confirmation command is triggered by manually clicking the positioning confirmation button.

9. An adaptive positioning control system for anti-tangling guide plates of a six-roll single-stand reversible rolling mill, characterized in that, include: The actuator includes an anti-entanglement guide plate, a hydraulic servo valve, and an actuator cylinder, wherein the anti-entanglement guide plate is installed at an angle; A detection unit is used to detect the displacement of the anti-tangling guide plate; The control unit is connected to both the detection unit and the actuator. The control unit includes a high-speed counting module, a positioning function block, and a multi-segment speed ramp generator. The control unit is configured to execute the adaptive positioning control method for the anti-tangling guide plate of a six-roll single-stand reversible rolling mill as described in any one of claims 1 to 8. The human-computer interaction unit includes a positioning confirmation button and a touch screen.

10. The adaptive positioning control system for the anti-tangling guide plate of a six-roll single-stand reversible rolling mill according to claim 9, characterized in that, The anti-tangling guide plate is installed at an angle of 40°; the detection unit is an SSI absolute displacement sensor; and the control unit is a Siemens S7-400 PLC.

Images