A method of controlling a side guide of a coiler

Abstract

The application discloses a control method of a side guide plate of a coiler, which comprises the following steps: controlling the side guide plate and the pinch roll to be in a waiting position after the head of the strip steel leaves the finishing rolling unit; obtaining the head bending data of the current strip steel, and obtaining an adjustment value according to the head bending data; adjusting the action timing of the side guide plate according to the adjustment value to guide the head of the strip steel; and controlling the side guide plate to sequentially execute short-stroke closing actions according to preset timing rules, wherein the preset timing rules comprise the following steps: after the head of the strip steel extends to the side guide plate by a preset distance, controlling the side guide plate to execute a first short-stroke closing action; when the head of the strip steel enters the pinch roll, controlling the side guide plate to execute a second short-stroke closing action; after the bending part of the head of the strip steel is wound on the winding drum, controlling the side guide plate to execute a third short-stroke closing action; and after all the short-stroke closing actions are executed, controlling the side guide plate to be switched from the position control mode to the pressure control mode, and controlling the side guide plate to be closed to a target opening degree.

Description

Technical Field

[0001] This application relates to the field of winding machine control technology, and in particular to a control method for the side guide plate of a winding machine. Background Technology

[0002] In the hot-rolled strip steel production process, the control precision of the coiler's side guide plate directly affects the coiling quality and production efficiency. Existing technologies employ two main control strategies to avoid strip jamming at the head of the side guide plate: one is simultaneous execution of two short strokes at the head of the side guide plate, and the other is pre-opening a certain distance before the strip head reaches the side guide plate. However, both methods have significant drawbacks, namely, they easily lead to internal pyramidal defects in the coil during strip coiling, severely affecting the appearance quality and subsequent processing performance of the coil. Regarding the problem of excessive bending at the strip head causing folding, existing technologies have obvious technical flaws: when the deformed portion of the strip head is too long, the side guide plate must wait for the entire deformed portion to pass before executing a short stroke, resulting in a severe delay in the side guide plate's action timing. This not only fails to effectively guide the strip in a timely manner but also exacerbates the internal pyramidal defects in the coil, while simultaneously reducing coiling efficiency. The failure to effectively balance the relationship between strip head bending control and the timing of side guide plate actions prevents the simultaneous resolution of the three major technical challenges: strip jamming, folding, and internal pyramidal defects. Summary of the Invention

[0003] In view of the deficiencies in the prior art, this application provides a control method for the side guide plate of a coiler to solve the problem of steel jamming at the head of the side guide plate in the prior art.

[0004] The above-mentioned objectives of this application are mainly achieved through the following technical solutions: A method for controlling a side guide plate of a winding machine, the control method comprising: The control side guide plate and pinch roll are in a waiting position after the strip head exits the finishing mill; Obtain the current head bending data of the strip, and obtain the adjustment value based on the head bending data; The timing of the side guide plate's operation is adjusted according to the adjustment value to guide the strip head; The side guide plate is controlled to perform short-stroke closing actions sequentially according to a preset timing rule, the preset timing rule including: After the strip head extends to the side guide plate at a preset distance, the side guide plate is controlled to perform the first short-stroke closing action; When the strip head enters the pinch roll, the control side guide plate performs a second short-stroke closing action; After the curved section of the strip head is wound onto the drum, the control side guide plate performs a third short-stroke closing action; After performing all short-stroke closing actions, the control side guide plate switches from position control mode to pressure control mode and controls the side guide plate to close to the target opening.

[0005] In an optional implementation, obtaining the current strip head bending data includes: the point with the maximum value of the strip head offset is taken as the bending point, and the straight-line distance between the bending point and the strip head is the bending segment length.

[0006] In an optional implementation, controlling the side guide plate to perform the first short-stroke closing action includes: when the strip head extends to a preset distance from the side guide plate, after a first time delay, controlling the side guide plate to perform the first short-stroke closing action; The first time interval is calculated using the following formula: T1 = (L1 + L2) / V1; Wherein, T1 is the first time, L1 is the length of the curved section, L2 is the horizontal distance between the detector and the side guide plate drive side outlet, and V1 is the linear velocity of the pinch roller.

[0007] In an optional implementation, controlling the side guide plate to perform a second short-stroke closing action includes: after a second delay following the completion of the first short-stroke closing action, controlling the side guide plate to perform a second short-stroke closing action; The second time is calculated using the following formula: T2 = L3 / V1; Where T2 is the second time, and L3 is the horizontal distance between the side guide plate drive side outlet and the lower pinch roller.

[0008] In an optional implementation, controlling the side guide plate to perform the third short-stroke closing action includes: after a third time delay following the completion of the second short-stroke closing action, controlling the side guide plate to perform the third short-stroke closing action; The third time is calculated using the following formula: T3 = (L4 + L5) / V2; Wherein, T3 is the third time, L4 is the total length of the bending area of ​​the strip head, L5 is the straight distance from the lower pinch roller to the drum, and V2 is the linear velocity of the drum.

[0009] In an optional implementation, when performing the short-stroke closing action, the first short stroke closes to a position 60-80mm wider than the strip width, the second short stroke closes to a position 40-50mm wider than the strip width, and the third short stroke closes to a position 20-30mm wider than the strip width.

[0010] In an optional implementation, when the curvature of the strip head changes, the adjustment value is dynamically adjusted to modify the specific position of the short-stroke closure of the side guide plate; wherein, when the absolute value of the strip head offset is greater than 80mm, it is determined that the curvature has changed.

[0011] In an optional embodiment, the operating side length of the side guide plate is less than the transmission side length.

[0012] In an optional implementation, after the strip head extends to a preset distance from the side guide plate, the detector on the side guide plate is triggered, and the side guide plate is controlled to perform the first short-stroke closing action.

[0013] In an optional implementation, when the side guide plate and the pinch roll are in the waiting position, the opening width of the side guide plate is 120mm-160mm larger than the strip width, and the roll gap opening of the pinch roll is 0.1mm-0.5mm larger than the strip thickness.

[0014] Compared with the prior art, the advantages of this application are: The control method in this application is used for controlling the operation of the side guide plate of the coiler. The control method includes: controlling the side guide plate and the pinch roll to be in a waiting position after the strip head exits the finishing mill; acquiring the current head bending data of the strip and obtaining an adjustment value based on the head bending data; adjusting the action timing of the side guide plate according to the adjustment value to guide the strip head; controlling the side guide plate to perform short-stroke closing actions sequentially according to a preset timing rule, the preset timing rule including: controlling the side guide plate to perform a first short-stroke closing action after the strip head extends to a preset distance of the side guide plate; controlling the side guide plate to perform a second short-stroke closing action when the strip head enters the pinch roll; controlling the side guide plate to perform a third short-stroke closing action after the bent part of the strip head is wrapped around the coil; after performing all the short-stroke closing actions, controlling the side guide plate to switch from position control mode to pressure control mode and controlling the side guide plate to close to the target opening.

[0015] This control method precisely acquires strip head bending data and calculates adjustment values, enabling the system to dynamically adapt to different strip bending characteristics, rather than employing a fixed delay control strategy. The closing process of the side guide plate is decomposed into three precisely timed short-stroke stages: the first short stroke is executed when the strip head extends to a preset distance on the side guide plate, at which point the side guide plate maintains an appropriate opening, providing sufficient space for the bent strip head to pass through, effectively avoiding the risk of strip jamming caused by premature clamping in traditional methods; the second short stroke is executed when the strip head enters the pinch roll, at which point the strip has received initial stable support, and the side guide plate can be moderately tightened to provide better guidance, while still retaining sufficient safety margin; the third short stroke is executed after the bent portion of the strip head is completely wound around the drum to form a stable structure, at which point the most dangerous bent portion has been fully fixed, and the side guide plate can safely complete the final tightening action. This balances the conflicting needs of avoiding strip jamming and preventing internal stacking, ensuring the smooth passage of the strip head while avoiding severe internal stacking defects caused by delayed action.

[0016] When strip steel exits the finishing mill, it exhibits significant bending deformation, which requires time and space to gradually unfold and stabilize. Traditional methods either apply clamping force too early, leading to folding, or apply clamping force too late, resulting in internal stacking. This control method, however, provides precise guidance and support at each critical node of the strip's movement through three precisely timed short-stroke controls. Specifically, the third short-stroke is triggered after the bent portion is wound onto the drum, ensuring that the most vulnerable bent portion of the strip is mechanically secured before final clamping, fundamentally eliminating the risk of folding. The control mode switches from position control to pressure control only after all short-stroke actions are completed, guaranteeing precise control of the final clamping force and avoiding quality problems caused by improper pressure control timing in traditional methods. This reduces internal stacking defects in the coil while effectively preventing head jamming and folding issues, resulting in a comprehensive improvement in coiling quality and production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial side view of the side guide plate provided in an embodiment of this application; Figure 2 This is a partial top view of the side guide plate provided in an embodiment of this application; In the diagram: 100, side guide plate; 101, operating side; 102, transmission side; 200, pinch roll; 300, strip steel; 400, finishing mill; 500, detector; 600, drum. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0020] like Figure 1 , Figure 2 As shown, Figure 1 This is a partial side view of the side guide plate 100 provided in an embodiment of this application; Figure 2 This is a partial top view of the side guide plate 100 provided in an embodiment of this application; a control method for the side guide plate 100 of a winding machine, the control method comprising: The control side guide plate 100 and pinch roll 200 are in a waiting position after the head of the strip 300 exits the finishing mill 400; Obtain the head bending data of the current strip 300, and obtain the adjustment value based on the head bending data; The timing of the action of the side guide plate 100 is adjusted according to the adjustment value to guide the head of the strip steel 300. The side guide plate 100 is controlled to perform short-stroke closing actions sequentially according to a preset timing rule, the preset timing rule including: After the head of the strip 300 extends to a preset distance from the side guide plate 100, the side guide plate 100 is controlled to perform the first short-stroke closing action; When the head of the strip 300 enters the pinch roll 200, the control side guide plate 100 performs a second short-stroke closing action; After the bent portion of the strip 300 head is wound onto the drum 600, the control side guide plate 100 performs a third short-stroke closing action; After performing all short-stroke closing actions, the control side guide plate 100 switches from position control mode to pressure control mode and controls the side guide plate 100 to close to the target opening.

[0021] like Figure 1 , Figure 2As shown, in an optional embodiment, the control method of this application is used for controlling the operation of the side guide plate 100 of the coiler. The control method includes: controlling the side guide plate 100 and the pinch roll 200 to be in a waiting position after the head of the strip 300 exits the finishing mill 400; acquiring the current head bending data of the strip 300 and obtaining an adjustment value based on the head bending data; adjusting the action timing of the side guide plate 100 according to the adjustment value to guide the head of the strip 300; controlling the side guide plate 100 to sequentially perform short-stroke closing actions according to a preset timing rule, wherein the preset timing rule... The rules include: after the head of the strip 300 extends to a preset distance from the side guide plate 100, the side guide plate 100 is controlled to perform a first short-stroke closing action; when the head of the strip 300 enters the pinch roll 200, the side guide plate 100 is controlled to perform a second short-stroke closing action; after the curved part of the head of the strip 300 is wrapped around the drum 600, the side guide plate 100 is controlled to perform a third short-stroke closing action; after all the short-stroke closing actions are performed, the side guide plate 100 is controlled to switch from position control mode to pressure control mode, and the side guide plate 100 is controlled to close to the target opening.

[0022] like Figure 1 , Figure 2 As shown, this control method accurately acquires the bending data of the strip 300 head and calculates the adjustment value. The system can dynamically adapt to the bending characteristics of different strips 300, rather than using a fixed delay control strategy. The closing process of the side guide plate 100 is decomposed into three short-stroke stages with precise timing control: the first short stroke is executed when the strip 300 head extends to the preset distance of the side guide plate 100. At this time, the side guide plate 100 maintains an appropriate opening, providing sufficient passage space for the bent strip 300 head, effectively avoiding the risk of steel jamming caused by premature clamping in traditional methods; the second short stroke is executed when the strip 300 head enters the pinch roll 200. At this time, the strip 300 has obtained initial stable support, and the side guide plate 100 can be moderately tightened to provide better guidance, but still retains sufficient safety margin; the third short stroke is executed after the bent part of the strip 300 head is completely wrapped around the drum 600 to form a stable structure. At this time, the most dangerous bent part has been fully fixed, and the side guide plate 100 can safely complete the final tightening action. It balances the conflicting needs of avoiding steel jamming and preventing internal towering, ensuring that the 300mm head of the strip passes smoothly, while avoiding serious internal towering defects caused by late action.

[0023] When the strip 300 emerges from the finishing mill 400, it exhibits significant bending deformation, requiring time and space to gradually unfold and stabilize. Traditional methods either apply clamping force too early, leading to folding, or apply clamping force too late, resulting in internal stacking. This control method, however, provides precise guidance and support at each critical node of the strip 300's movement through three precisely timed short-stroke controls. Specifically, the third short-stroke is triggered after the bent portion is wound onto the drum 600, ensuring that the most vulnerable bent portion of the strip 300 is mechanically secured before final clamping, fundamentally eliminating the risk of folding. The control mode switches from position control to pressure control only after all short-stroke actions are completed, guaranteeing precise control of the final clamping force and avoiding quality problems caused by improper pressure control timing in traditional methods. This reduces internal stacking defects in the coil while effectively preventing head jamming and folding issues, resulting in a comprehensive improvement in coiling quality and production efficiency.

[0024] like Figure 1 , Figure 2 As shown, in an optional embodiment, obtaining the head bending data of the current strip 300 includes: the point with the maximum value of the head offset of the strip 300 as the bending point, and the straight-line distance between the bending point and the head of the strip 300 as the bending segment length.

[0025] The maximum offset point at the head of the strip 300 is defined as the bending point, and the straight-line distance from the bending point to the head of the strip 300 is defined as the bending segment length. This accurately characterizes the actual bending state of the strip 300 head and provides a reliable quantitative basis for subsequent timing control. In actual production, the bending morphology of the strip 300 head varies significantly under different steel grades and rolling processes, and traditional fixed-parameter control methods cannot adapt to this variation. By accurately identifying the bending point and bending segment length, the system can dynamically perceive the true bending characteristics of the strip 300, providing an accurate time reference for staged short-stroke control. This avoids control errors caused by inaccurate bending state judgment in existing technologies, significantly improving the adaptability and reliability of control, especially when dealing with materials prone to complex bending morphologies such as high-strength steel and thin-gauge strip 300.

[0026] like Figure 1 , Figure 2 As shown, in an optional embodiment, controlling the side guide plate 100 to perform the first short-stroke closing action includes: when the head of the strip 300 extends to a preset distance from the side guide plate 100, after a first time delay, controlling the side guide plate 100 to perform the first short-stroke closing action. The first time interval is calculated using the following formula: T1 = (L1 + L2) / V1; Wherein, T1 is the first time, L1 is the length of the curved section, L2 is the horizontal distance between the detector 500 and the outlet of the transmission side 102 of the side guide plate 100, and V1 is the linear velocity of the pinch roller 200.

[0027] By calculating the theoretical time required from the triggering of detector 500 to the arrival of the strip 300 head at the transmission side 102 exit of the side guide plate 100, the system ensures that the first short-stroke action is executed at the most appropriate time. Based on calculations using actual physical parameters, this method, compared to traditional fixed-delay control, can adapt to variations in the bending length and running speed of the strip 300. When the strip 300 is severely bent or running slowly, the system automatically extends the delay time; conversely, it shortens the delay time. This dynamic adjustment mechanism effectively avoids problems such as strip jamming or internal stacking caused by improper delay, achieving a perfect balance between control precision and production efficiency. It is particularly suitable for high-speed, high-precision modern hot rolling production lines.

[0028] like Figure 1 , Figure 2 As shown, in an optional embodiment, the control side guide plate 100 performing the second short-stroke closing action includes: after a second delay following the completion of the first short-stroke closing action, the control side guide plate 100 performs the second short-stroke closing action; The second time is calculated using the following formula: T2 = L3 / V1; Wherein, T2 is the second time, and L3 is the horizontal distance between the outlet of the drive side 102 of the side guide plate 100 and the lower pinch roller 200.

[0029] Utilizing the stable transition phase of the strip 300 before the pinch roll 200, the time required for the strip 300 to move from the exit of the side guide plate 100 to the entrance of the pinch roll 200 is precisely calculated to ensure that the second short stroke is accurately executed just before the strip 300 enters the pinch roll 200. When the head of the strip 300 enters the pinch roll 200, its trajectory is relatively stable. At this time, moderate tightening of the side guide plate 100 can provide better guidance, preventing the strip 300 from deviating or jittering at the entrance of the pinch roll 200. Simultaneously, this timing avoids the problem of increased pinching resistance caused by premature tightening and also prevents guidance failure caused by excessively late tightening. High-precision timing control can be achieved by simply measuring the fixed installation distance L3 and acquiring the real-time speed V1 of the pinch roll 200, greatly improving the stability and feasibility of the system.

[0030] like Figure 1 , Figure 2 As shown, in an optional embodiment, the control side guide plate 100 performing the third short-stroke closing action includes: after a third time delay following the completion of the second short-stroke closing action, the control side guide plate 100 performs the third short-stroke closing action. The third time is calculated using the following formula: T3 = (L4 + L5) / V2; Wherein, T3 is the third time, L4 is the total length of the bending area at the head of the strip 300, L5 is the straight distance from the lower pinch roll 200 to the drum 600, and V2 is the linear velocity of the drum 600.

[0031] Only after the bent section is completely wrapped and fixed can the side guide plate 100 safely perform the final tightening action; otherwise, it is very easy to cause head folding or a decrease in winding quality. This formula calculates the critical moment by summing the total length of the bent area and the transmission distance, and then dividing by the drum's linear speed of 600. Compared with the existing technology's simple delay or waiting for the entire deformed section to pass, this control method can dynamically adjust the waiting time according to the actual bending length, ensuring that the bent section is fully stable and avoiding unnecessary delays, significantly improving winding efficiency and quality. It is particularly suitable for processing strip steel 300 products with severe head bending.

[0032] like Figure 1 , Figure 2 As shown, in an optional implementation, when performing the short-stroke closing action, the first short stroke closes to a position 60-80mm wider than the strip 300, the second short stroke closes to a position 40-50mm wider than the strip 300, and the third short stroke closes to a position 20-30mm wider than the strip 300.

[0033] This implementation employs a progressive tightening strategy. The first short-stroke tightening closes the strip to a position 60-80mm wider than the strip 300 width; the second short-stroke tightening closes it to a position 40-50mm wider; and the third short-stroke tightening closes it to a position 20-30mm wider. The large opening in the first tightening ensures sufficient passage space for the severely bent head of the strip 300, completely avoiding the risk of strip jamming. The medium opening in the second tightening provides moderate guiding constraint after the strip 300 enters the pinch roll 200, preventing lateral deviation during high-speed operation. The small opening in the third tightening provides precise guidance after the strip 300 head is stably wound, preparing for the final pressure control mode switch. This progressive control strategy perfectly balances the conflicting requirements of safe passage and precise guidance. Compared to traditional one-time tightening or fixed opening control, it simultaneously solves the technical problems of strip jamming, folding, and inner towering, significantly improving winding quality.

[0034] In an optional implementation, when the curvature of the strip 300 head changes, the adjustment value is dynamically adjusted to modify the specific position of the short-stroke closure of the side guide plate 100; wherein, when the absolute value of the offset of the strip 300 head is greater than 80mm, it is determined that the curvature has changed.

[0035] When the curvature of the strip 300 head changes dynamically, a change in curvature is determined when the absolute value of the offset of the strip 300 head exceeds 80mm. The adjustment value is then dynamically adjusted to modify the specific position of the short-stroke closure of the side guide plate 100. Considering the dynamic changes in the curvature of the strip 300 during actual production, the degree of curvature may vary significantly at different parts of the same coil during hot continuous rolling due to factors such as temperature fluctuations and changes in rolling force. Traditional fixed-parameter control methods cannot adapt to this variation and are prone to control failure. By setting an offset threshold of 80mm, abnormal curvature can be identified in a timely manner, and the execution position of the short stroke can be dynamically adjusted. For example, when severe curvature is detected, the system will increase the opening of the first short stroke or extend the delay time to ensure safe passage; when the curvature is minor, the tightening timing can be appropriately advanced to improve control efficiency. This adaptive adjustment mechanism greatly enhances the robustness and adaptability of the system, effectively coping with complex and changing production conditions.

[0036] like Figure 1 , Figure 2 As shown, in an optional embodiment, the length of the operating side 101 of the side guide plate 100 is shorter than the length of the drive side 102. During actual winding, the head of the strip 300 typically shifts towards the drive side 102, causing the drive side 102 to bear greater guiding pressure and wear. By designing a shorter operating side 101, excessive interference with the movement of the strip 300 can be effectively avoided, especially when the head of the strip 300 is severely bent; an excessively long operating side 101 can easily lead to collisions or friction between the strip 300 and the side guide plate 100. A longer drive side 102, on the other hand, provides more adequate guiding support, ensuring effective control of the strip 300 at critical positions. This optimizes the force distribution on the side guide plate 100, extends the equipment's service life, and improves guiding accuracy and stability.

[0037] In an optional implementation, after the head of the strip 300 extends to a preset distance from the side guide plate 100, the detector 500 on the side guide plate 100 is triggered, and the side guide plate 100 is controlled to perform the first short-stroke closing action.

[0038] When the strip 300 head extends to a preset distance and triggers the detector 500, the control side guide plate 100 performs its first short-stroke closing action, achieving precise timing of control. The trigger position of the detector 500 ensures that a signal is issued when the strip 300 head is about to reach the side guide plate 100 but still has a sufficient safe distance. Compared to traditional control methods based on time delay or fixed position, the detector 500 triggering mechanism has higher accuracy and reliability. It is unaffected by factors such as strip 300 speed fluctuations and temperature changes, and can accurately identify the actual position of the strip 300. Simultaneously, the detector 500 signal provides a precise starting reference point for subsequent delay calculations, ensuring the accuracy of the entire control timing sequence.

[0039] In an optional embodiment, when the side guide plate 100 and the pinch roller 200 are in the waiting position, the opening width of the side guide plate 100 is 120mm-160mm larger than the width of the strip 300, and the roll gap opening of the pinch roller 200 is 0.1mm-0.5mm larger than the thickness of the strip 300.

[0040] The additional opening of the side guide plate 100 (120-160mm) ensures safe passage even with the most severe head bends, completely eliminating the risk of steel jamming. Meanwhile, the additional opening of the pinch roll 200 (only 0.1-0.5mm) guarantees adequate clamping force when the strip 300 enters, preventing jitter or deviation during clamping. The combination of these two parameters creates the initial conditions for subsequent staged short-stroke control. If the opening of the side guide plate 100 is too small, the risk of steel jamming increases; if it is too large, it affects subsequent guiding accuracy. Similarly, if the opening of the pinch roll 200 is too large, the clamping effect decreases; if it is too small, it may damage the surface of the strip 300, achieving a balance between safety and control accuracy.

[0041] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0042] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0043] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0046] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0047] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0048] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A method for controlling the side guide plate of a winding machine, characterized in that, The control method includes: The control side guide plate and pinch roll are in a waiting position after the strip head exits the finishing mill; Obtain the current head bending data of the strip, and obtain the adjustment value based on the head bending data; The timing of the side guide plate's operation is adjusted according to the adjustment value to guide the strip head; The side guide plate is controlled to perform short-stroke closing actions sequentially according to a preset timing rule, the preset timing rule including: After the strip head extends to the side guide plate at a preset distance, the side guide plate is controlled to perform the first short-stroke closing action; When the strip head enters the pinch roll, the control side guide plate performs a second short-stroke closing action; After the curved section of the strip head is wound onto the drum, the control side guide plate performs a third short-stroke closing action; After performing all short-stroke closing actions, the control side guide plate switches from position control mode to pressure control mode and controls the side guide plate to close to the target opening.

2. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: Obtaining the current strip head bending data includes: the point with the maximum value of the strip head offset is taken as the bending point, and the straight-line distance from the bending point to the strip head is the bending segment length.

3. The control method for the side guide plate of the winding machine as described in claim 2, characterized in that: The control of the side guide plate to perform the first short-stroke closing action includes: when the strip head extends to the side guide plate at a preset distance, after a first time delay, controlling the side guide plate to perform the first short-stroke closing action; The first time interval is calculated using the following formula: T1 = (L1 + L2) / V1; Wherein, T1 is the first time, L1 is the length of the curved section, L2 is the horizontal distance between the detector and the side guide plate drive side outlet, and V1 is the linear velocity of the pinch roller.

4. The control method for the side guide plate of the winding machine as described in claim 3, characterized in that: The control side guide plate performs a second short-stroke closing action, which includes: after a second delay following the completion of the first short-stroke closing action, the control side guide plate performs a second short-stroke closing action. The second time is calculated using the following formula: T2 = L3 / V1; Where T2 is the second time, and L3 is the horizontal distance between the side guide plate drive side outlet and the lower pinch roller.

5. The control method for the side guide plate of the winding machine as described in claim 4, characterized in that: The control side guide plate performs the third short-stroke closing action, which includes: after a third time delay following the completion of the second short-stroke closing action, the control side guide plate performs the third short-stroke closing action. The third time is calculated using the following formula: T3 = (L4 + L5) / V2; Wherein, T3 is the third time, L4 is the total length of the bending area of ​​the strip head, L5 is the straight distance from the lower pinch roller to the drum, and V2 is the linear velocity of the drum.

6. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: When performing the short-stroke closing action, the first short stroke closes the strip to a position 60-80mm wider than the strip width, the second short stroke closes the strip to a position 40-50mm wider than the strip width, and the third short stroke closes the strip to a position 20-30mm wider than the strip width.

7. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: When the curvature of the strip head changes, the adjustment value is dynamically adjusted to modify the specific position of the short-stroke closure of the side guide plate; wherein, when the absolute value of the strip head offset is greater than 80mm, it is determined that the curvature has changed.

8. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: The length of the operating side of the side guide plate is less than the length of the transmission side.

9. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: After the strip head extends to the preset distance of the side guide plate, it triggers the detector on the side guide plate and controls the side guide plate to perform the first short-stroke closing action.

10. The control method for the side guide plate of the winding machine as described in claim 1, characterized in that: When the side guide plate and the pinch roll are in the waiting position, the opening width of the side guide plate is 120mm-160mm larger than the strip width, and the roll gap opening of the pinch roll is 0.1mm-0.5mm larger than the strip thickness.

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