Control method and system for a carouseller winder of an acid pickling line

Abstract

The application provides a control method and system of a cold-rolling mill group Calo Selle coiler, which comprises the following steps: step 1, collecting the control signals of the cold-rolling mill group, and determining the time point of tension setting switching through the collected control signals; step 2, obtaining the incoming material information of the cold-rolling mill group, and determining the rationality of the initial tension of the strip head entering the mandrel in combination with the given value of the coiler winding tension; step 3, determining the time point of state switching; step 4, performing the coiling control during the process of the strip head entering the mandrel to the outer ring winding; and step 5, gradually increasing the overshoot speed of the coiler based on the load feedback and the coiling length of the actual coiler, so as to establish the coiling tension and realize stable control. Through the determination of the load condition of the Calo Selle coiler of the cold-rolling mill group, the torque current setting and the speed setting of the coiler are controlled, so as to avoid the tension overshoot, reduce the slip of the strip steel and the mandrel, improve the coiling stability of the mill group, prolong the service life of the mandrel and reduce the scratch of the strip steel.

Description

Technical Field

[0001] This invention relates to the field of cold rolling mill production technology, specifically to a control method and system for a Carosell coiler in a pickling continuous rolling mill. Background Technology

[0002] In the production of a pickling and rolling mill, the coiler is an important piece of equipment. The coiler is usually located at the tail end of the mill. As the name suggests, the coiler is used to rewind straight strip steel into finished steel coils, and it consists of main components such as a coiling mandrel, a coiling belt, and an outer support arm.

[0003] During the coiling process, coiling tension directly affects the shape, thickness difference, and coiling quality of the finished strip. Abnormal conditions may cause large fluctuations in thickness difference, strip slippage and breakage at the strip head, inability to coil the strip head normally, loose inner coil leading to inability to uncoil, inner coil core pulling during uncoiling, coil collapse after hoisting into the warehouse, "slippage" during uncoiling in downstream units, multi-layer surface abrasions on the inner coil, a sharp decrease in the surface roughness of the coiling mandrel, and belt damage.

[0004] In software control, coilers typically employ a "constant tension" control method. The set coiling speed is often higher than the actual speed feedback of the strip, allowing the coiler to quickly coil the strip head and reach the set tension, i.e., the set torque and current value. When the strip head enters the winding aid belt, the mandrel exerts a traction force on the strip. Simultaneously, under the external force of the strip, the mandrel's axial speed decreases to synchronize with the strip's speed. Since the mandrel is a large mechanical device with a large overall inertia, the braking torque generated by deceleration is significant, greatly affecting the actual tension fluctuation of the strip. There are two scenarios here: when the strip coiling tension is high, relative sliding friction occurs between the strip and the mandrel, resulting in severe abrasion on the inner ring of the mandrel and strip; when the strip coiling tension is low, no sliding friction occurs between the strip and the mandrel. Regardless of the scenario, the instantaneous increase in coiling tension significantly impacts coiling stability. This condition occurs at the moment the strip head bites into the coiler, making operator intervention virtually impossible.

[0005] Patent document CN110193532A discloses a method for rapid judgment and control of tension fluctuations in a winding machine, including detecting the control accuracy of the winding machine torque, controlling the accuracy of the exit thickness, reducing the deviation between the actual and set values ​​of the winding tension, reducing the deviation between the actual and set values ​​of the winding speed, and controlling the output torque of the winding machine transmission system. However, this patent cannot completely solve the existing technical problems, nor can it meet the needs of this invention. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a control method and system for the Carosell coiler in an acid continuous rolling mill.

[0007] The control method for the Carrousel coiler of the acid continuous rolling mill provided by the present invention includes:

[0008] Step 1: Collect control signals from the acid continuous rolling mill and determine the timing of tension setting switching based on the collected control signals; control signals include: Carrousel coiler coiling current feedback and speed feedback, mill exit acceleration conditions, assisted coiling completion signal and coiler tension establishment completion signal;

[0009] Step 2: Obtain the incoming material information of the acid continuous rolling mill, and calculate the initial tension of the strip entering the mandrel by combining the given value of the coiling tension of the coiler;

[0010] Step 3: Based on the tensioning completion signal, the mill exit shearing signal, and the assisted coiling completion signal, and in conjunction with the completion status of the entire coiling process, determine the moment of state switching;

[0011] Step 4: Perform winding control during the process from the head entering the mandrel to the outer ring tightening;

[0012] Step 5: Based on the actual load feedback and winding length of the winding machine, gradually increase the overshoot speed of the winding machine to establish winding tension and achieve stable control.

[0013] Preferably, step 2 includes:

[0014] Step 2.1: Set the winding and shearing speed to 240mpm, and the speed of the coiler to 240+8mpm; when the strip head enters the coiler half a turn, the speed of the strip is the same as that of the strip, and the deceleration rate of the mandrel is 32mpm / sec;

[0015] Step 2.2: The moment of inertia of the mandrel of the winding machine is... G represents mass, and D represents the perpendicular distance between the particle and the axis of rotation;

[0016] Step 2.3: The deceleration torque required for the mandrel to reduce speed to the strip speed is:

[0017]

[0018] In the formula: J represents the moment of inertia; ω represents the angular velocity; Gr is the winding machine reduction ratio; The deceleration rate;

[0019] Step 2.4: The overshoot percentage is calculated as follows:

[0020] m=(T 初始力矩 -ΔT 调整力矩 +T 减速力矩 ) / T 初始力矩

[0021] When winding with the lead, the m value should be controlled between 90% and 120%. At this point, the impact on winding thickness difference and slippage is minimized, thus obtaining the initial tension (T). 初始力矩 -ΔT 调整力矩 The setting value of ).

[0022] Preferably, step 3 includes:

[0023] Step 3.1: During the process of the head entering the mandrel 0 to 1.5 turns, the control method of step 2 is adopted;

[0024] Step 3.2: During the process of the head entering the mandrel 1.5 to 3 turns, the tension is gradually transitioned to the preset normal tension setting value for control.

[0025] Step 3.3: Determine whether the winding is complete based on the thickness of the strip. For thin materials, the number of winding turns is 5 turns, and for thick materials, it is 3 to 3.5 turns.

[0026] Preferably, when the strip enters the mandrel, the tension P of the winding aid belt prevents slippage between the strip and the mandrel. The maximum tension is calculated as follows:

[0027] T 最大张力 =μ×N=μ×L×W×P

[0028] In the formula: μ is the static friction coefficient; L is the length of the strip wound into the mandrel; W is the strip width; P is the tension pressure of the winding belt; N represents the pressure between the strip and the mandrel.

[0029] Preferably, during the winding process from the lead screw entering the mandrel to the outer coil tightening, the tension setting is a gradual increase from low to high. When the outer coil is tightened, the maximum tension is:

[0030] T ′ 最大张力 =μ×L×W×(P+P ′ )

[0031] In the formula: P ′ The pressure generated by the outer ring steel band tightening the mandrel.

[0032] The control system for the Carosell coiler of the acid continuous rolling mill provided by the present invention includes:

[0033] Module M1: Collects control signals from the acid continuous rolling mill and determines the timing of tension setting switching based on the collected control signals; the control signals include: Carrousel coiler coiling current feedback and speed feedback, mill exit acceleration conditions, assisted coiling completion signal and coiler tension establishment completion signal;

[0034] Module M2: Obtains the incoming material information of the acid continuous rolling mill and, in conjunction with the given value of the coiling tension of the coiler, calculates the initial tension of the strip entering the mandrel;

[0035] Module M3: Based on the tensioning completion signal, the mill exit shearing signal, and the assisted coiling completion signal, and in conjunction with the completion status of the entire coiling process, determine the moment of state switching;

[0036] Module M4: Performs winding control during the process from the tape head entering the mandrel to the outer ring tightening;

[0037] Module M5: Based on the actual load feedback and winding length of the winding machine, the overshoot speed of the winding machine is gradually increased, thereby establishing winding tension and achieving stable control.

[0038] Preferably, the module M2 includes:

[0039] Module M2.1: Set the winding and shearing speed to 240mpm, and the winding machine speed to 240+8mpm; the strip head enters the winding machine at the same speed as the strip head when it has traveled half a turn, and the mandrel deceleration rate is 32mpm / sec;

[0040] Module M2.2: The moment of inertia of the mandrel of the winding machine is G represents mass, and D represents the perpendicular distance between the particle and the axis of rotation;

[0041] Module M2.3: The reduction torque required for the mandrel to reduce speed to the strip speed is:

[0042]

[0043] In the formula: J represents the moment of inertia; ω represents the angular velocity; Gr is the winding machine reduction ratio; The deceleration rate;

[0044] Module M2.4: Overshoot percentage calculation is as follows:

[0045] m=(T 初始力矩 -ΔT 调整力矩 +T 减速力矩 ) / T 初始力矩

[0046] When winding with the lead, the m value should be controlled between 90% and 120%. At this point, the impact on winding thickness difference and slippage is minimized, thus obtaining the initial tension (T). 初始力矩 -ΔT 调整力矩 The setting value of ).

[0047] Preferably, the module M3 includes:

[0048] Module M3.1: During the process of the head entering the mandrel from 0 to 1.5 turns, the control method of module M2 is adopted;

[0049] Module M3.2: During the process of the head entering the mandrel 1.5 to 3 turns, the control is adopted to gradually transition to the preset normal tension setting value;

[0050] Module M3.3: Determines the completion of winding based on the strip thickness. For thin materials, the number of winding turns is 5 turns, and for thick materials, it is 3 to 3.5 turns.

[0051] Preferably, when the strip enters the mandrel, the tension P of the winding aid belt prevents slippage between the strip and the mandrel. The maximum tension is calculated as follows:

[0052] T 最大张力 =μ×N=μ×L×W×P

[0053] In the formula: μ is the static friction coefficient; L is the length of the strip wound into the mandrel; W is the strip width; P is the tension pressure of the winding belt; N represents the pressure between the strip and the mandrel.

[0054] Preferably, during the winding process from the lead screw entering the mandrel to the outer coil tightening, the tension setting is a gradual increase from low to high. When the outer coil is tightened, the maximum tension is:

[0055] T ′ 最大张力 =μ×L×W×(P+P ′ )

[0056] In the formula: P ′ The pressure generated by the outer ring steel band tightening the mandrel.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] (1) This invention provides a control method for the Carrosel coiler of a continuous acid rolling mill, which can improve coiling stability, reduce the problem of severe tension overshoot, reduce scratches on the inner ring of the strip, and improve the coiling quality and service life of the coiling mandrel.

[0059] (2) By judging the load condition of the Carrousel coiler in the cold rolling mill, the torque current and speed of the coiler are controlled, thereby avoiding tension overshoot, reducing slippage of the strip and mandrel, improving the coiling stability of the mill, increasing the life of the mandrel and reducing strip abrasion. Attached Figure Description

[0060] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0061] Figure 1 For cases of take-up slippage and overshoot where the present invention is not used;

[0062] Figure 2For the winding situation using the present invention;

[0063] Figure 3 This is a flowchart of the winding machine control method of the present invention. Detailed Implementation

[0064] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0065] Example 1

[0066] This invention provides a coiler control method that, by collecting existing data from the unit, controls the coiling torque, current, and speed in real time, thereby making the coiling performance of the rolling mill more stable.

[0067] like Figure 3 The specific design scheme is as follows:

[0068] Step 1: Collect the unit control signals, including: Carrousel coiler winding current feedback and speed feedback, mill exit acceleration conditions, aux coiling completion signal, coiler tensioning completion signal. The collected signals are used to determine the timing of tension setting switching.

[0069] Step 2: Determine the incoming material of the unit, such as thickness, width, and steel type. Combine this with the given value of the winding tension of the coiler to determine the rationality of the initial tension of the lead head entering the mandrel, so as to avoid slippage between the lead head and the mandrel.

[0070] Step 2.1: Assuming the winding and shearing speed is 240mpm, and the speed of the coiler is 240+8mpm; the strip should be within 1m (the strip head enters the coiler half a turn) and move at the same speed as the strip. The calculated reduction rate of the mandrel is approximately 32mpm / sec.

[0071] Step 2.2: Moment of inertia of the mandrel of the winding machine Unit: kg.m 2 In the formula: G represents mass; D represents the perpendicular distance between the particle and the axis of rotation;

[0072] Step 2.3: The deceleration torque required for the mandrel to reduce speed to the strip speed:

[0073]

[0074] In the formula: J represents the moment of inertia; ω represents the angular velocity; Gr is the winding machine reduction ratio; The deceleration rate;

[0075] Step 2.4: As can be seen from Step 2.3, how to avoid excessive tension overshoot (overshoot is evaluated as a percentage) involves not only the given overshoot speed, but also the setting value of the initial tension.

[0076] The overshoot percentage is calculated as follows: m = (T 初始力矩 -ΔT 调整力矩 +T 减速力矩 ) / T 初始力矩

[0077] When winding with the lead, the m value needs to be controlled between 90% and 120% to minimize the impact on winding thickness variation and slippage. From this, the initial tension (T) can be obtained. 初始力矩 -ΔT 调整力矩 ) setting value

[0078] Step 3: Based on the tensioning signal, mill exit shearing signal, and coiling completion signal, and in conjunction with the completion status of the automatic steps throughout the entire coiling process, determine the moment of state switching;

[0079] Step 3.1: During the process of the head entering the mandrel 0 to 1.5 turns, the control method of step 2 is adopted;

[0080] Step 3.2: During the process of the head entering the mandrel 1.5 to 3 turns, the tension should be gradually transitioned to the normal set value.

[0081] Step 3.3: Determining whether winding is complete. Based on the thickness of the strip, the number of winding turns is generally around 5 for thin materials and around 3 to 3.5 for thick materials. Ensure that the strip and mandrel are tightly bound to avoid unwinding during the opening of the winding belt.

[0082] Step 4: For the winding control of extra-thick materials, wide materials, and high-strength steel, Steps 2 and 3 are not entirely applicable. That is, materials with excessively high total winding tension require other methods to avoid mandrel slippage.

[0083] Step 4.1: When the strip enters the mandrel, the maximum tension between the strip and the mandrel, relying on the tension pressure P of the winding aid belt, to prevent slippage is calculated as follows:

[0084] T 最大张力 =μ×N=μ×L×W×P

[0085] Where: μ is the static friction coefficient; L is the length of the strip wound into the mandrel; W is the strip width; P is the tension pressure of the winding belt; N represents the pressure between the strip and the mandrel;

[0086] Step 4.2: When the strip head enters the mandrel, the strip winding tension should be greater than T. 最大张力When this happens, the strip and mandrel will slip, the actual winding tension will not reach the set tension, and the slippage will continue, resulting in significant defects and wear on the surfaces of both the strip and the mandrel.

[0087] Step 4.3: Therefore, during the winding process from the lead screw entering the mandrel to the outer ring tightening, the tension setting is a gradual increase from low to high. Once the outer ring is tightened, the friction calculation formula for the inner ring changes, ensuring sufficient static friction to maintain the winding tension of the inner ring. At this point, the maximum tension is:

[0088] T ′ 最大张力 =μ×L×W×(P+P ′ )

[0089] In the formula: P ′ The pressure generated by the outer ring steel band tightening the mandrel is typically several times that of the winding aid belt, which is sufficient to ensure normal winding.

[0090] Step 4.4: Regarding the tension setting in Step 4.3, this invention adopts a gradually increasing setting method based on the actual torque current feedback and winding length. This solves the problem of coarse control caused by open-loop setting while ensuring the maximum winding capacity of the equipment. (Insufficient initial tension can also lead to winding abnormalities.)

[0091] Step 5: Setting the overshoot speed of the winding machine. Based on the theory in Step 2, an excessively large overshoot speed is also a significant factor leading to excessive actual tension overshoot. With limited reduction in the initial tension setting, reducing the overshoot speed can effectively reduce the overshoot tension. However, an excessively low overshoot speed cannot quickly establish sufficient winding tension, which also affects winding quality. Therefore, this invention, based on the actual load feedback and winding length of the winding machine, gradually increases the overshoot speed of the winding machine to quickly establish winding tension and achieve stable control.

[0092] like Figure 1 The tension setpoint changes in a step manner, which causes the original unit control tension feedback to have a significant overshoot when it approaches the tension setpoint.

[0093] like Figure 2 Using the method of this invention, the tension setpoint does not change in a step, but gradually increases with a slope, making the actual value rise more smoothly without obvious overshoot.

[0094] Example 2

[0095] The present invention also provides a control system for a carousel coiler in an acid continuous rolling mill. The control system for the carousel coiler in the acid continuous rolling mill can be implemented by executing the process steps of the control method for the carousel coiler in the acid continuous rolling mill. That is, those skilled in the art can understand the control method for the carousel coiler in the acid continuous rolling mill as a preferred embodiment of the control system for the carousel coiler in the acid continuous rolling mill.

[0096] The control system for the Carrousel coiler in a continuous acid-rolling mill according to the present invention includes: Module M1: acquiring control signals from the continuous acid-rolling mill and determining the timing of tension setting switching based on the acquired control signals; the control signals include: Carrousel coiler coiling current feedback and speed feedback, mill exit acceleration conditions, auxiliary coiling completion signal, and coiler tension building completion signal; Module M2: acquiring incoming material information from the continuous acid-rolling mill and, in conjunction with the given value of the coiler coiling tension, determining the rationality of the initial tension of the strip entering the mandrel to avoid slippage between the strip and the mandrel; Module M3: determining the timing of state switching based on the tension building completion signal, mill exit shearing signal, and auxiliary coiling completion signal, while also considering the completion status of the entire coiling process; Module M4: performing coiling control during the process from the strip entering the mandrel to the outer coiling tightening; Module M5: gradually increasing the overshoot speed of the coiler based on the actual coiler load feedback and coiling length, thereby establishing coiling tension and achieving stable control.

[0097] The module M2 includes:

[0098] Module M2.1: Set the winding and shearing speed to 240mpm, and the winding machine speed to 240+8mpm; the strip head enters the winding machine at the same speed as the strip head when it has traveled half a turn, and the mandrel deceleration rate is 32mpm / sec;

[0099] Module M2.2: The moment of inertia of the mandrel of the winding machine is G represents mass, and D represents the perpendicular distance between the particle and the axis of rotation;

[0100] Module M2.3: The reduction torque required for the mandrel to reduce speed to the strip speed is:

[0101]

[0102] In the formula: J represents the moment of inertia; ω represents the angular velocity; Gr is the winding machine reduction ratio; The deceleration rate;

[0103] Module M2.4: Overshoot percentage calculation is as follows:

[0104] m=(T 初始力矩 -ΔT 调整力矩 +T 减速力矩 ) / T 初始力矩

[0105] When winding with the lead, the m value should be controlled between 90% and 120%. At this point, the impact on winding thickness difference and slippage is minimized, thus obtaining the initial tension (T). 初始力矩 -ΔT 调整力矩 The setting value of ).

[0106] The module M3 includes: Module M3.1: During the process of the strip head entering the mandrel from 0 to 1.5 turns, the control method of module M2 is adopted; Module M3.2: During the process of the strip head entering the mandrel from 1.5 to 3 turns, the control method is adopted to gradually transition to the preset normal tension setting value; Module M3.3: The winding completion is judged according to the thickness of the strip steel. The winding number of turns is 5 turns for thin materials and 3 to 3.5 turns for thick materials, ensuring that the strip steel and the mandrel are in a tight state and avoiding the phenomenon of unwinding during the opening of the winding aid belt.

[0107] When the strip enters the mandrel, the tension P of the winding aid belt prevents slippage between the strip and the mandrel. The maximum tension is calculated as follows:

[0108] T 最大张力 =μ×N=μ×L×W×P

[0109] In the formula: μ is the static friction coefficient; L is the length of the strip wound into the mandrel; W is the strip width; P is the tension pressure of the winding belt; N represents the pressure between the strip and the mandrel.

[0110] During the winding process from when the lead coil enters the mandrel to when the outer coil is tightened, the tension setting is a gradual increase from low to high. When the outer coil is tightened, the maximum tension is:

[0111] T ′ 最大张力 =μ×L×W×(P+P ′ )

[0112] In the formula: P ′ The pressure generated by the outer ring steel band tightening the mandrel.

[0113] Those skilled in the art will understand that, in addition to implementing the system, apparatus, and their modules provided by this invention in purely computer-readable program code, the same program can be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system, apparatus, and their modules provided by this invention can be considered a hardware component, and the modules included therein for implementing various programs can also be considered structures within the hardware component; alternatively, modules for implementing various functions can be considered both software programs implementing the method and structures within the hardware component.

[0114] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A control method for a Carosell coiler in a continuous acid rolling mill, characterized in that, include: Step 1: Collect control signals from the acid continuous rolling mill and determine the timing of tension setting switching based on the collected control signals; control signals include: Carrousel coiler coiling current feedback and speed feedback, mill exit acceleration conditions, assisted coiling completion signal and coiler tension establishment completion signal; Step 2: Obtain the incoming material information of the acid continuous rolling mill, and calculate the initial tension of the strip entering the mandrel by combining the given value of the coiling tension of the coiler; Step 3: Based on the tensioning completion signal, the mill exit shearing signal, and the assisted coiling completion signal, and in conjunction with the completion status of the entire coiling process, determine the moment of state switching; Step 4: Perform winding control during the process from the head entering the mandrel to the outer ring tightening; Step 5: Based on the actual load feedback and winding length of the coiler, gradually increase the overshoot speed of the coiler to establish winding tension and achieve stable control; when the strip head enters the mandrel, the tension pressure P of the auxiliary winding belt prevents slippage between the strip and the mandrel. The maximum tension is calculated as follows: In the formula: The coefficient of static friction; The length of the strip steel wound into the mandrel; The width of the strip; To help increase the tension of the conveyor belt; This indicates the pressure between the strip and the mandrel.

2. The control method for the Carosell coiler of the acid continuous rolling mill according to claim 1, characterized in that, Step 2 includes: Step 2.1: Set the winding and shearing speed to 240mpm, and the speed of the coiler to 240+8mpm; when the strip head enters the coiler half a turn, the speed of the strip is the same as that of the strip, and the deceleration rate of the mandrel is 32mpm / sec; Step 2.2: The moment of inertia of the mandrel of the winding machine is... , Indicates quality, Indicates the perpendicular distance between the particle and the axis of rotation; Step 2.3: The deceleration torque required for the mandrel to reduce speed to the strip speed is: In the formula: Indicates the moment of inertia; Indicates angular velocity; This refers to the reduction ratio of the winding machine; The deceleration rate; Step 2.4: The overshoot percentage is calculated as follows: When winding with the lead, the m value should be controlled between 90% and 120%. At this point, the impact on winding thickness difference and slippage is minimized, thus obtaining the initial tension ( The setting value of ).

3. The control method for the Carosell coiler of the acid continuous rolling mill according to claim 2, characterized in that, The winding process in step 3 is as follows: Step 3.1: During the process of the head entering the mandrel 0~1.5 turns, the control method of step 2 is adopted; Step 3.2: During the process of the head entering the mandrel 1.5 to 3 turns, the tension should be gradually transitioned to the preset normal tension setting value. Step 3.3: Determine whether the winding is complete based on the thickness of the strip. For thin materials, the number of winding turns is 5 turns, and for thick materials, it is 3 to 3.5 turns.

4. The control method for the Carosell coiler of the acid continuous rolling mill according to claim 1, characterized in that, During the winding process from when the lead coil enters the mandrel to when the outer coil is tightened, the tension setting is a gradual increase from low to high. When the outer coil is tightened, the maximum tension is: In the formula: The pressure generated by the outer ring steel band tightening the mandrel.

5. A control system for a Carosell coiler in a continuous acid rolling mill, characterized in that, include: Module M1: Collects control signals from the acid continuous rolling mill and determines the timing of tension setting switching based on the collected control signals; the control signals include: Carrousel coiler coiling current feedback and speed feedback, mill exit acceleration conditions, assisted coiling completion signal and coiler tension establishment completion signal; Module M2: Obtains the incoming material information from the acid continuous rolling mill and, in conjunction with the given value of the coiling tension of the coiler, calculates the initial tension of the strip entering the mandrel; Module M3: Based on the tensioning completion signal, the mill exit shearing signal, and the assisted coiling completion signal, and in conjunction with the completion status of the entire coiling process, determine the moment of state switching; Module M4: Performs winding control during the process from the tape head entering the mandrel to the outer ring tightening; Module M5: Based on the actual load feedback and winding length of the winding machine, the overshoot speed of the winding machine is gradually increased, thereby establishing winding tension and achieving stable control; When the strip enters the mandrel, the tension P of the winding aid belt prevents slippage between the strip and the mandrel. The maximum tension is calculated as follows: In the formula: The coefficient of static friction; The length of the strip steel wound into the mandrel; The width of the strip; To help increase the tension of the conveyor belt; This indicates the pressure between the strip and the mandrel.

6. The control system for the Carosell coiler of the acid continuous rolling mill according to claim 5, characterized in that, The module M2 includes: Module M2.1: Set the winding and shearing speed to 240mpm, and the winding machine speed to 240+8mpm; the strip head enters the winding machine at the same speed as the strip head when it has traveled half a turn, and the mandrel deceleration rate is 32mpm / sec; Module M2.2: The moment of inertia of the mandrel of the winding machine is , Indicates quality, Indicates the perpendicular distance between the particle and the axis of rotation; Module M2.3: The reduction torque required for the mandrel to reduce speed to the strip speed is: In the formula: Indicates the moment of inertia; Indicates angular velocity; This refers to the reduction ratio of the winding machine; The deceleration rate; Module M2.4: Overshoot percentage calculation is as follows: When winding with the lead, the m value should be controlled between 90% and 120%. At this point, the impact on winding thickness difference and slippage is minimized, thus obtaining the initial tension ( The setting value of ).

7. The control system for the Carosell coiler of the acid continuous rolling mill according to claim 6, characterized in that, The winding process in module M3 is as follows: Module M3.1: During the process of the head entering the mandrel from 0 to 1.5 turns, the control method of module M2 is adopted; Module M3.2: During the process of the head entering the mandrel 1.5~3 turns, the control is adopted to gradually transition to the preset normal tension setting value; Module M3.3: Determines whether winding is complete based on the strip thickness. For thin materials, the number of winding turns is 5 turns, and for thick materials, it is 3 to 3.5 turns.

8. The control system for the Carosell coiler of the acid continuous rolling mill according to claim 5, characterized in that, During the winding process from when the lead coil enters the mandrel to when the outer coil is tightened, the tension setting is a gradual increase from low to high. When the outer coil is tightened, the maximum tension is: In the formula: The pressure generated by the outer ring steel band tightening the mandrel.

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