Parking control method and device of coiling machine and electronic equipment

Abstract

The invention discloses a parking control method and device for a coiling machine and electronic equipment, and the method comprises the steps: if it is detected that the tail part of a previous coil of strip steel leaves a pinch roll group and an upper pinch roll is in a preset waiting position, judging whether the state of the upper pinch roll meets a preset condition or not when the head part of the current strip steel enters the pinch roll group; if the preset condition is met, whether the operation rolling force of the upper pinch roll and the rolling force of the transmission side are both larger than the first preset rolling force or not is judged in the operation process of the current strip steel in the pinch roll set area; and if the rolling force is greater than the first preset rolling force, the central roll gap value of the upper pinch roll is identified to be greater than the thickness of the current strip steel by a second preset thickness, and the tension of the mandrel of the coiling machine is identified to be smaller than the preset tension, controlling the coiling machine to stop when the head of the current strip steel leaves the lower pinch roll by a preset running distance. According to the method, the problem that equipment is damaged due to the fact that the pinch roll is wound is well solved.

Description

Technical Field

[0001] This invention relates to the field of strip rolling technology, and in particular to a method, device and electronic equipment for stopping a coiler. Background Technology

[0002] The problem of the upper pinch roll getting tangled occurs frequently. When an upper pinch roll tangling accident occurs, if the operator fails to detect it in time and call a quick stop of the winding machine, the excessive number of tangled rolls will affect the accident handling time. Severe tangling can lead to deformation and damage to equipment such as the pinch roll frame and valves. The need to replace damaged equipment further increases the time required to handle the accident on site.

[0003] The existing technology involves installing high-definition cameras at key locations such as the side guide plates, pinch rolls, and mandrel of the coiler. Operators can observe the entire strip coiling process in real-time via these cameras. Specifically, if the operator observes strip lifting at the side guide plate position or notices no strip at the mandrel position after the pinch rolls have engaged the strip, it indicates an abnormality in the strip engagement at the pinch rolls. Upon detecting such an anomaly, the operator should immediately take emergency measures, press the coiler's quick stop button, and promptly check the strip's condition on-site.

[0004] The main limitation of existing technology lies in its high dependence on manual monitoring. Human factors themselves are highly unstable, and their performance is limited by multiple variables such as the operator's experience level, concentration, mental state and reaction speed. This can easily lead to high-number of roll wrapping on the upper pinch roller, causing deformation and damage to key equipment such as the pinch roller frame and valves, which in turn greatly prolongs the troubleshooting time and affects production efficiency. Summary of the Invention

[0005] This application provides a method, device, and electronic device for controlling the stop of a coiler. This method can trigger a quick stop of the coiler when a steel pile-up accident such as roll entanglement occurs on the upper pinch roll, effectively preventing equipment damage caused by roll entanglement, reducing losses, and improving reliability.

[0006] In a first aspect, the present invention provides the following technical solution through an embodiment of the present invention: A method for controlling the stopping of a coiler includes: if the upper pinch roll is in a preset waiting position when the tail of the previous coiled strip leaves the pinch roll group, then when the head of the current strip enters the pinch roll group, it is determined whether the state of the upper pinch roll meets a preset condition; if the preset condition is met, then during the running of the current strip in the pinch roll group area, it is determined whether the operating force, rolling force, and transmission side rolling force of the upper pinch roll are both greater than a first preset rolling force; if both are greater than the first preset rolling force, and it is identified that the center roll gap value of the upper pinch roll is greater than the thickness of the current strip by a second preset thickness, and the tension of the coiler mandrel is less than a preset tension, then the coiler is stopped when the head of the current strip leaves the lower pinch roll after a preset running distance.

[0007] Preferably, determining whether the state of the upper pinch roll meets the preset conditions when the head of the current strip enters the pinch roll group includes: detecting that the instantaneous rolling force of the upper pinch roll is greater than a second preset rolling force when the head of the current strip enters the pinch roll group; and / or, when a strip head tracking signal is detected in the pinch roll group area when the head of the current strip enters the pinch roll group, the upper pinch roll generates a bite signal, and determines whether the state of the upper pinch roll meets the preset conditions.

[0008] Preferably, detecting the presence of a strip head tracking signal in the pinch roll group area includes: if a hot metal detector located at the coiler inlet detects a strip head signal, and if the straight-line distance between the current strip head and the lower pinch roll is less than a first preset distance, then a strip head tracking signal is detected in the pinch roll group area.

[0009] Preferably, before identifying that the straight-line distance between the head of the current strip and the lower pinch roll is less than a first preset distance, the method further includes: acquiring the current running speed of the strip and the first running time of the current strip after exiting the finishing work roll; determining the running distance of the current strip head after leaving the last finishing work roll based on the running speed and the first running time; and determining the straight-line distance between the head of the current strip and the center of the lower pinch roll based on the running distance and the distance between the last work roll and the center of the lower pinch roll.

[0010] Preferably, before the preset running distance after the head of the current strip leaves the lower pinch roll, the method further includes: acquiring the linear velocity feedback value of the lower pinch roll after the upper pinch roll generates a bite signal, and the second running time of the current strip after the upper pinch roll generates a bite signal; and determining whether the running distance after the head of the current strip leaves the lower pinch roll is the preset running distance based on the linear velocity feedback value and the second running time.

[0011] Preferably, controlling the winding machine to stop includes: controlling the cooling roller table in front of the pinch roller group, the pinch roller group, the winding machine mandrel, and the winding machine auxiliary roller to stop at a predetermined deceleration; after controlling the winding machine to stop, it further includes: opening the side guide plate roller gap, the upper pinch roller gap, and the auxiliary roller gap in front of the pinch roller group to the maximum gap position.

[0012] Preferably, the step of detecting whether the upper pinch roll is in a preset waiting position before the tail of the previous strip leaves the pinch roll group further includes: determining whether the thickness of the current strip before it reaches the pinch roll group is less than a first preset thickness; if it is less than the first preset thickness, then detecting whether the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group, wherein the first preset thickness is between 2.3 and 2.5 mm; the upper pinch roll being in a preset waiting position includes: the roll gap of the upper pinch roll being 0.2 to 0.6 mm smaller than the thickness of the current strip.

[0013] Preferably, the first preset rolling force is between 200 and 260 kN, the second preset thickness is between 5 and 10 mm, the preset running distance is between 15 and 40 m, and the preset tension is between 3 and 5 MPa.

[0014] Secondly, through an embodiment of the present invention, the present invention provides the following technical solution: A stop control device for a winding machine, comprising: The first judgment module is used to determine whether the state of the upper pinch roll meets the preset conditions when the head of the current strip enters the pinch roll group if the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group. The second judgment module is used to determine whether the operating force and rolling force of the upper pinch roll and the transmission side rolling force are both greater than the first preset rolling force when the current strip is running in the pinch roll group area if the preset conditions are met. The stop control module is used to control the coiler to stop when the head of the current strip leaves the lower pinch roll after a preset running distance if all the rolling forces are greater than the first preset rolling force, and the center roll gap value of the upper pinch roll is greater than the thickness of the current strip than the second preset thickness, and the tension of the coiler mandrel is less than the preset tension.

[0015] Thirdly, through one embodiment of the present invention, the following technical solution is provided: An electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method described in any of the first aspects above.

[0016] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: The coiler shutdown control method provided in this invention combines parameters such as strip head tracking distance, pinch roll gap, pinch roll working state, and mandrel tension to comprehensively determine whether the strip is in a working state with a risk of entanglement. Then, when multiple parameter conditions are met, the automatic rapid shutdown process of the coiler is triggered. This application focuses on both the accuracy of the pinch roll entanglement risk assessment and the limitation of the coiler shutdown timing, ensuring that entanglement losses are minimized to a certain extent. It strikes a balance between the two, ensuring the accuracy of entanglement problem assessment and minimizing equipment losses. This makes the entire control process timely in handling faults, effectively preventing equipment damage caused by pinch roll entanglement, reducing losses, and improving reliability and production efficiency. Attached Figure Description

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

[0018] Figure 1 This is a flowchart of the stopping control method for the winding machine in an embodiment of the present invention; Figure 2 This is a schematic diagram of the winding machine in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the stop control device for the winding machine in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation

[0019] The applicant discovered that traditional technology relies on manual observation and stopping, while the pinch roll biting speed for thin strip steel is typically 13 m / s, the diameter of the upper pinch roll is 880-900 mm, and the single-turn winding length is approximately 2.8 m. Assuming the operator notices the roll winding after 20 seconds of pinch roll biting the steel and reacts with a quick stop after 3 seconds, the number of winding turns of the pinch roll would be approximately {(20+3)×13} / 2.8 ≈ 106 turns. Such a high number of winding turns not only leads to deformation and damage to critical equipment such as the pinch roll frame and valves, but also significantly prolongs troubleshooting time, thus affecting production efficiency.

[0020] To address this issue, this application provides a method, device, and electronic equipment for controlling the shutdown of a coiler. By using parameters such as strip head tracking distance, pinch roll rolling force, roll gap value, and tension, the method accurately determines whether the pinch roll is experiencing roll entanglement, thereby automatically triggering a fast stop of the coiler. This achieves automatic shutdown in abnormal situations, significantly reducing losses caused by pinch roll entanglement and improving reliability and production efficiency.

[0021] The technical solution of this application embodiment is to solve the above-mentioned technical problems, and the general idea is as follows: If the upper pinch roll is in a preset waiting position when the tail of the previous strip is detected leaving the pinch roll group, it is determined whether the thickness of the current strip before it reaches the pinch roll group is less than a first preset thickness. If so, when the head of the current strip enters the pinch roll group, it is determined whether the state of the upper pinch roll meets a preset condition. If the preset condition is met, during the current strip's movement in the pinch roll group area, it is determined whether the operating force, rolling force, and transmission side rolling force of the upper pinch roll are both greater than a first preset rolling force. If both are greater than the first preset rolling force, and it is identified that the center roll gap value of the upper pinch roll is greater than the thickness of the current strip than a second preset thickness, and the tension of the coiler core shaft is less than a preset tension, then the coiler is stopped when the head of the current strip leaves the lower pinch roll after a preset running distance.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] In a first aspect, the embodiments of the present invention provide a method for controlling the stopping of a winding machine, specifically, as follows: Figure 1 As shown, the method includes the following steps S101 to S103: Step S101: If the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group, then when the head of the current strip enters the pinch roll group, it is determined whether the state of the upper pinch roll meets the preset conditions.

[0024] like Figure 2 The diagram shows the equipment structure. 101 represents the layer cold roller conveyor, 102 represents the side guide plate, 103 represents the lower pinch roller, 104 represents the upper pinch roller, 105 represents the winding machine core shaft, and 106 represents the auxiliary winding roller.

[0025] It should be noted that "pinch roll wrapping" refers to the following: after hot-rolled strip steel has been rolled in the finishing mill and transported through the laminar flow cooling roller table 101, it is guided by the side guide plate 102 at the coiling entrance to the pinch roll (103, 104) position. After the pinch roll normally bites the steel, the difference in roll diameter and eccentricity between the upper pinch roll 104 and the lower pinch roll 103 guides the strip head downwards to the coiler mandrel 105 position for normal coiling. "Roll wrapping," on the other hand, refers to the situation where the strip head fails to be properly guided to the mandrel, and instead, after the pinch roll bites the steel, it directly wraps around the upper pinch roll 104.

[0026] In a specific embodiment, if it is detected that the tail of the previous coil of strip leaves the pinch roll group before the upper pinch roll is in a preset waiting position, the method may further include: determining whether the thickness of the current strip before running to the pinch roll group is less than a first preset thickness; if it is less than the first preset thickness, then detecting whether the upper pinch roll is in a preset waiting position when the tail of the previous coil of strip leaves the pinch roll group, wherein the first preset thickness is between 2.3 and 2.5 mm.

[0027] Specifically, the upper pinch roll being in a preset waiting position can include: the roll gap of the upper pinch roll being 0.2~0.6mm smaller than the current strip thickness. If the first preset thickness is 2.5mm, the roll gap of the upper pinch roll needs to be between 1.9~2.3mm. It is determined whether the current strip thickness before reaching the pinch roll group (i.e., while running on the laminar flow cooling roller table 101) is less than 2.5mm.

[0028] In actual production, there is a hydraulic cylinder on both the operating side and the transmission side of the upper pinch roll. Each hydraulic cylinder has a magnetic scale to monitor the roll gap of the pinch roll. Alternatively, the roll gap of the pinch roll can be detected by instruments such as displacement sensors.

[0029] like Figure 2 As shown, the thickness of the current strip running on the cooling roller table should be less than 2.5mm (the probability of the upper pinch roll wrapping is smaller when the strip thickness is larger). Limiting the thickness of the current strip to below 2.5mm reduces the power consumption of the equipment's operating memory.

[0030] In a specific embodiment, when the head of the current strip enters the pinch roll group, determining whether the state of the upper pinch roll meets the preset conditions may include: when the head of the current strip enters the pinch roll group, detecting that the instantaneous rolling force of the upper pinch roll is greater than a second preset rolling force; and / or, when the head of the current strip enters the pinch roll group, detecting that there is a strip head tracking signal in the pinch roll group area, the upper pinch roll generates a bite signal, and determining whether the state of the upper pinch roll meets the preset conditions.

[0031] In one embodiment, when the head of the current strip enters the pinch roll group, if the instantaneous rolling force of the upper pinch roll is detected to be greater than the second preset rolling force, it is determined that the state of the upper pinch roll meets the preset condition; or, when the head of the current strip enters the pinch roll group, if a strip head tracking signal is detected in the pinch roll group area, and the upper pinch roll generates a bite signal, it is determined that the state of the upper pinch roll meets the preset condition.

[0032] Preferably, the second preset rolling force can be between 20 and 26 kN, for example, 25 kN. In actual production, the instantaneous rolling force of the upper pinch roll can be determined by detecting the pressure spikes in the pinch roll group area using a pressure detection device (such as a strain gauge sensor or a pressure head sensor). The instantaneous rolling force can be understood as the instantaneous impact force generated by the strip on the upper pinch roll when the strip head passes through the pinch roll.

[0033] In a specific embodiment, detecting the presence of a strip head tracking signal in the roll group area may include: if the Hot Metal Detector (HMD) 107 located at the coiler inlet detects a strip head signal, and if the straight-line distance between the current strip head and the lower pinch roll is less than a first preset distance, then the presence of a strip head tracking signal in the pinch roll group area is detected.

[0034] Preferably, the first preset distance can be 2 to 4 meters, for example, 3 meters.

[0035] Among them, the hot metal detector 107 is used to detect the actual position of the strip steel.

[0036] Specifically, the condition for determining the presence of a strip head tracking signal in the pinch roll area is: the hot metal detector 107 at the coiler inlet detects the signal of the strip passing through and the straight-line distance between the strip head and the pinch roll is <3m.

[0037] In one embodiment, before identifying that the straight-line distance between the head of the current strip and the lower pinch roll is less than a first preset distance, the method may further include: acquiring the current running speed of the strip and the first running time of the current strip after exiting the finishing work roll; determining the running distance of the current strip head after leaving the last finishing work roll based on the running speed and the first running time; and determining the straight-line distance between the head of the current strip and the center of the lower pinch roll based on the running distance and the distance between the last work roll and the center of the lower pinch roll.

[0038] Specifically, based on the running distance and the distance between the center of the last working roll and the center of the lower pinch roll, the straight-line distance between the head of the current strip and the center of the lower pinch roll is determined, including: subtracting the running distance S1 from the distance S2 between the center of the last working roll and the center of the lower pinch roll to determine the straight-line distance Sm between the head of the current strip and the center of the lower pinch roll.

[0039] Specifically, the distance Sm between the head of the strip and the center of the lower pinch roll can be calculated as follows: Sm = S2 - S1, where S1 is the distance from the head of the strip to the last work roll (e.g., ...). Figure 2 The integral formula for calculating the distance S1 (in F7) is: S1 = dt, V1 is the set speed of the strip, t1 is the running time of the strip after exiting the finishing mill (first running time), and S2 is the straight-line distance (mechanical distance) from the center of the last work roll F7 of the finishing mill to the lower pinch roll. It should be noted that the finishing mill consists of multiple stands, numbered from F1 to F7. F1 is the starting stand for finishing milling, and F7 is the last stand.

[0040] In actual production, the running speed of the strip can be obtained through laser equipment or a rotary encoder (which detects the rotational speed and diameter of the work roll to calculate the strip speed).

[0041] Therefore, when the strip head reaches the pinch roll group area, the rolling force of the upper pinch roll at the moment of biting the strip is greater than 25KN, or when there is a strip head tracking signal in the pinch roll group area, the upper pinch roll generates a biting signal, and it is determined that the state of the upper pinch roll meets the preset conditions.

[0042] Step S102: If the preset conditions are met, then during the operation of the current strip in the area of ​​the pinch roll group, it is determined whether the operating force and rolling force of the upper pinch roll and the transmission side rolling force are both greater than the first preset rolling force.

[0043] If it is determined that the state of the upper pinch roll meets the preset conditions, then during the current strip running in the pinch roll group area, it is determined whether the operating force (OS) rolling force of the upper pinch roll is greater than the first preset rolling force, and whether the transmission side (DS) rolling force is greater than the first preset rolling force.

[0044] When the upper pinch roll has a certain number of turns of winding, the rolling force of the upper pinch roll increases. By obtaining the magnitude of the rolling force, the current winding state can be determined. Preferably, the first preset rolling force can be between 200 and 260 kN, for example, 250 kN.

[0045] In actual production, the operating force, rolling force, and drive-side rolling force can be obtained through a pressing device installed below the bearing housing of the pinch roll or between the frame and the roll.

[0046] Step S103: If all values ​​are greater than the first preset rolling force, and it is identified that the center roll gap value of the upper pinch roll is greater than the thickness of the current strip steel than the second preset thickness, and the tension of the coiler core shaft is less than the preset tension, then the coiler is stopped when the head of the current strip steel leaves the preset running distance after the lower pinch roll.

[0047] If both are greater than 250KN, it is determined whether the center roll gap value of the upper pinch roll is greater than the current strip thickness than the second preset thickness, and whether the tension of the coiler core shaft is less than the preset tension.

[0048] Preferably, the second preset thickness can be between 5 and 10 mm, for example, 6 mm. The preset tension can be between 3 and 5 MPa, for example, 5 MPa.

[0049] The center roll gap value is the average of the operating side roll gap and the drive side roll gap.

[0050] In a specific embodiment, identifying whether the tension of the winding machine mandrel is less than the preset tension may include: obtaining the detection torque value Tr of the mandrel motor and the outer diameter D2 of the steel coil calculated in the first stage; and calculating the tension of the mandrel (i.e., the strip tension) based on the detection torque value Tr of the mandrel motor and the outer diameter D2 of the steel coil calculated in the first stage.

[0051] Specifically, the measured torque Tr is multiplied by the outer diameter D2 of the steel coil to obtain the tension of the mandrel, T = Tr × D2.

[0052] During the normal strip winding process, the strip tension is generally in the range of 8~30MPa (set according to the different strip thicknesses). If the tension of the winding machine core shaft is detected to be significantly less than this range, such as less than 5MPa, it can be determined that the strip tension is abnormal, and there is a high probability that there is a problem with the pinch rolls winding.

[0053] Next, when the head of the current strip leaves the preset running distance after the lower pinch roll, the coiler is stopped.

[0054] In a specific embodiment, before the head of the current strip leaves the lower pinch roll and travels a preset running distance, the process may further include: acquiring the linear velocity feedback value of the lower pinch roll after the upper pinch roll generates a bite signal, and the second running time of the current strip after the upper pinch roll generates a bite signal; and determining, based on the linear velocity feedback value and the second running time, whether the running distance of the current strip head after leaving the lower pinch roll is the preset running distance.

[0055] In one embodiment, after the upper pinch roll generates a steel biting signal, the linear velocity feedback value of the lower pinch roll may include: obtaining the angular velocity and diameter of the lower pinch roll; and calculating the linear velocity of the lower pinch roll based on the angular velocity and diameter.

[0056] Specifically, the linear velocity V2 of the lower pinch roller is calculated by multiplying the angular velocity W detected by the motor by the diameter D1 of the lower pinch roller.

[0057] The second running time of the current strip refers to the duration of continuous running of the strip after the pinch rolls bite the strip. The running distance of the current strip head after leaving the lower pinch roll refers to the running distance of the current strip head after leaving the center point of the lower pinch roll, that is, the tracking distance Sn of the strip head passing the center point of the lower pinch roll.

[0058] Specifically, determining whether the running distance of the current strip head after leaving the lower pinch roll is the preset running distance, based on the linear velocity feedback value and the second running time, can include: According to the formula Sn = dt calculates the running distance Sn of the strip head after leaving the center point of the lower pinch roll, where V2 is the linear velocity feedback value of the lower pinch roll after the pinch roll generates the bite signal, and T2 is the running time of the strip after the pinch roll generates the bite signal (second running time).

[0059] Preferably, the preset running distance can be between 15 and 40m, for example, 30m.

[0060] Specifically, if the above conditions (pinch roll gap, pinch roll rolling force, mandrel pressure, etc.) are all met, and the strip head is detected to have followed the center point of the lower pinch roll within a distance range of 15 to 40 meters, the coiler will be stopped.

[0061] In a specific embodiment, controlling the winding machine to stop may include: controlling the cooling roller table in front of the pinch roller group, the pinch roller group, the winding machine mandrel, and the winding machine auxiliary roller to stop at a predetermined deceleration; after controlling the winding machine to stop, it may also include: opening the side guide plate roller gap, the upper pinch roller gap, and the auxiliary roller gap in front of the pinch roller group to the maximum gap position.

[0062] Preferably, the cooling roller table in front of the pinch roller group, the pinch roller group, the winding machine mandrel, and the winding machine auxiliary winding roller are controlled to stop at a deceleration of 2~6m / s to achieve a quick stop of the winding machine.

[0063] Furthermore, to achieve the purpose of emergency early warning, the alarm should be activated before or simultaneously with the shutdown of the winding machine, thereby reminding personnel to take immediate action. This alarm can be an audible and visual alarm.

[0064] In one optional embodiment, after determining whether the operating force of the upper pinch roll and the rolling force on the transmission side are both greater than the first preset rolling force, or after determining that the tension of the coiler core shaft is less than the preset tension, the alarm is controlled to issue a warning signal to achieve the effect of early warning, reminding personnel to check and verify, and reducing equipment damage.

[0065] Therefore, this application uses parameters such as the tracking distance of the pinch roll head, pinch roll pressure deviation, roll gap deviation, and tension to determine if the pinch roll is experiencing a roll entanglement problem, and then automatically triggers a fast stop alarm, thus mitigating the losses caused by the pinch roll entanglement. Based on the multi-parameter monitoring results, an intelligent fast stop control method is presented, which automatically triggers an emergency fast stop program, reducing the number of pinch roll entanglement turns from 100 turns to less than 20 turns, significantly reducing equipment damage, and shortening the accident handling time by more than 50%. By collecting multi-dimensional data in real time and combining it with dynamic threshold judgment, accurate identification and rapid response to roll entanglement accidents are achieved, improving the accuracy and timeliness of accident detection.

[0066] Using this method, the number of winding turns of the upper pinch roller is effectively reduced from more than 100 turns to less than 20 turns, thereby significantly shortening the accident handling time. Furthermore, by controlling the number of winding turns to less than 20 turns, abnormal damage to key components such as the pinch roller rocker arm and valve is successfully avoided, significantly improving the reliability of equipment operation.

[0067] In summary, the coiler shutdown control method provided by the embodiments of the present invention can automatically alarm and trigger a quick stop of the coiler when a steel pile-up accident such as roll entanglement occurs on the upper pinch roller, thereby eliminating equipment damage caused by roll entanglement on the pinch roller and reducing the accident losses caused by steel pile-up.

[0068] Secondly, based on the same inventive concept, this embodiment provides a stopping control device for a winding machine, such as... Figure 3 As shown, it includes: The first judgment module 401 is used to determine whether the state of the upper pinch roll meets the preset conditions when the head of the current strip enters the pinch roll group if the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group. The second judgment module 402 is used to determine whether the operating force and rolling force of the upper pinch roll and the transmission side rolling force are both greater than the first preset rolling force when the current strip is running in the pinch roll group area if the preset conditions are met. The parking control module 403 is used to control the coiler to stop when the head of the current strip leaves the lower pinch roll after a preset running distance if all the rolling forces are greater than the first preset rolling force, and the center roll gap value of the upper pinch roll is greater than the thickness of the current strip than the second preset thickness, and the tension of the coiler mandrel is less than the preset tension.

[0069] As an optional embodiment, the first judgment module 401 is specifically used to: detect that the instantaneous rolling force of the upper pinch roll is greater than the second preset rolling force when the head of the current strip enters the pinch roll group; and / or, when the head of the current strip enters the pinch roll group and a strip head tracking signal is detected in the pinch roll group area, the upper pinch roll generates a bite signal to determine whether the state of the upper pinch roll meets the preset conditions.

[0070] As an optional embodiment, the first judgment module 401 is specifically used to: if it is identified that the hot metal detector set at the coiler inlet detects a strip head signal, and it is identified that the straight distance between the current strip head and the lower pinch roll is less than a first preset distance, then a strip head tracking signal is detected in the pinch roll group area.

[0071] As an optional embodiment, the first determination module 401 is specifically used to: obtain the current running speed of the strip and the first running time of the current strip after exiting the finishing work roll; determine the running distance of the current strip head after leaving the last finishing work roll based on the running speed and the first running time; and determine the straight-line distance between the current strip head and the center of the lower pinch roll based on the running distance and the distance between the last work roll and the center of the lower pinch roll.

[0072] As an optional embodiment, the parking control module 403 is specifically used to: acquire the linear velocity feedback value of the lower pinch roll after the upper pinch roll generates a bite signal, and the second running time of the current strip after the upper pinch roll generates a bite signal; and determine whether the running distance of the current strip head after leaving the lower pinch roll is a preset running distance based on the linear velocity feedback value and the second running time.

[0073] As an optional embodiment, the parking control module 403 is specifically used to: control the cooling roller table in front of the pinch roller group, the pinch roller group, the winding machine mandrel and the winding machine auxiliary roller to stop at a predetermined deceleration; after controlling the winding machine to stop, it also includes: opening the side guide plate roller gap, the upper pinch roller gap and the auxiliary roller gap in front of the pinch roller group to the maximum gap position.

[0074] As an optional embodiment, the device further includes: a thickness determination module, used to determine whether the thickness of the current strip before it reaches the pinch roll group is less than a first preset thickness; if it is less than the first preset thickness, it detects whether the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group, wherein the first preset thickness is between 2.3 and 2.5 mm; the upper pinch roll being in the preset waiting position includes: the roll gap of the upper pinch roll being 0.2 to 0.6 mm smaller than the thickness of the current strip.

[0075] As an optional embodiment, the first preset rolling force is between 200 and 260 kN, the second preset thickness is between 5 and 10 mm, the preset running distance is between 15 and 40 m, and the preset tension is between 3 and 5 MPa.

[0076] Each of the above modules can be implemented using software code, in which case they can be stored in the memory of the control device. Alternatively, each of the above modules can be implemented using hardware, such as integrated circuit chips.

[0077] The stopping control device for a winding machine provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0078] Thirdly, based on the same inventive concept, this embodiment provides an electronic device 500, such as... Figure 4 As shown, it includes: a memory 501, a processor 502, and a computer program 503 stored in the memory and executable on the processor. When the processor 502 executes the program, it implements the steps of the stop control method for the winding machine described in the first aspect above.

[0079] Since the electronic device described in this embodiment is the electronic device used to implement the winding machine parking control method in the embodiments of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the winding machine parking control method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any electronic device used by those skilled in the art to implement the winding machine parking control method in the embodiments of this application falls within the scope of protection of this application.

[0080] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A module that specifies the function in one or more boxes.

[0082] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction modules implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0083] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0084] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0085] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for controlling the stopping of a winding machine, characterized in that, include: If the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group, then when the head of the current strip enters the pinch roll group, it is determined whether the state of the upper pinch roll meets the preset conditions. If the preset conditions are met, then during the current strip's operation in the pinch roll group area, it is determined whether the operating force and rolling force of the upper pinch roll and the transmission side rolling force are both greater than the first preset rolling force. If all values ​​are greater than the first preset rolling force, and it is identified that the center roll gap value of the upper pinch roll is greater than the thickness of the current strip than the second preset thickness, and the tension of the coiler mandrel is less than the preset tension, then the coiler is stopped when the head of the current strip leaves the preset running distance after the lower pinch roll.

2. The stopping control method for a winding machine as described in claim 1, characterized in that, When the head of the current strip enters the pinch roll group, determining whether the state of the upper pinch roll meets preset conditions includes: When the head of the current strip enters the pinch roll group, it is detected that the instantaneous rolling force of the upper pinch roll is greater than the second preset rolling force; And / or, when the head of the current strip enters the pinch roll group, and a strip head tracking signal is detected in the pinch roll group area, the upper pinch roll generates a bite signal to determine whether the state of the upper pinch roll meets the preset conditions.

3. The stopping control method for a winding machine as described in claim 2, characterized in that, The detection of a strip head tracking signal in the pinch roll group area includes: If the hot metal detector at the coiler inlet detects a strip head signal and the straight-line distance between the current strip head and the lower pinch roll is less than a first preset distance, then a strip head tracking signal is detected in the pinch roll group area.

4. The stopping control method for a winding machine as described in claim 3, characterized in that, Before identifying that the straight-line distance between the head of the current strip and the lower pinch roll is less than a first preset distance, the method further includes: Obtain the current running speed of the strip and the first running time of the strip after exiting the finishing mill roll; Based on the operating speed and the first running time, the running distance of the current strip head after leaving the last work roll of the finishing mill is determined; Based on the running distance and the distance between the center of the last working roll and the center of the lower pinch roll, the straight-line distance between the head of the current strip and the center of the lower pinch roll is determined.

5. The stopping control method for a winding machine as described in claim 1, characterized in that, The process before the head of the current strip leaves the lower pinch roll by a preset travel distance also includes: After the upper pinch roll generates a bite signal, the linear velocity feedback value of the lower pinch roll is obtained, and the second running time of the current strip after the upper pinch roll generates a bite signal is obtained. Based on the linear velocity feedback value and the second running time, it is determined whether the running distance of the current strip head after leaving the lower pinch roll is the preset running distance.

6. The stopping control method for a winding machine as described in claim 1, characterized in that, The control of stopping the winding machine includes: The system controls the cooling roller table before the pinch roller group, the pinch roller group, the winding machine mandrel, and the winding machine auxiliary rollers to stop at a predetermined deceleration; after the winding machine stops, the system further includes: Open the gaps of the side guide plate, the upper pinch roller, and the winding aid roller to their maximum positions.

7. The method for stopping a winding machine as described in claim 1, characterized in that, The step of detecting that the tail of the previous coil of strip has left the pinch roll group, before the upper pinch roll is in a preset waiting position, further includes: Determine whether the thickness of the current strip before it reaches the pinch roll group is less than a first preset thickness. If it is less than the first preset thickness, detect whether the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group. The first preset thickness is between 2.3 and 2.5 mm. The upper pinch roller is in a preset waiting position, including: The gap between the upper pinch rolls is 0.2 to 0.6 mm smaller than the thickness of the current strip.

8. The method for stopping a winding machine as described in claim 1, characterized in that, The first preset rolling force is between 200 and 260 kN, the second preset thickness is between 5 and 10 mm, the preset running distance is between 15 and 40 m, and the preset tension is between 3 and 5 MPa.

9. A stop control device for a winding machine, characterized in that, include: The first judgment module is used to determine whether the state of the upper pinch roll meets the preset conditions when the head of the current strip enters the pinch roll group if the upper pinch roll is in a preset waiting position when the tail of the previous strip leaves the pinch roll group. The second judgment module is used to determine whether the operating force and rolling force of the upper pinch roll and the transmission side rolling force are both greater than the first preset rolling force when the current strip is running in the pinch roll group area if the preset conditions are met. The stop control module is used to control the coiler to stop when the head of the current strip leaves the lower pinch roll after a preset running distance if all the rolling forces are greater than the first preset rolling force, and the center roll gap value of the upper pinch roll is greater than the thickness of the current strip than the second preset thickness, and the tension of the coiler mandrel is less than the preset tension.

10. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method according to any one of claims 1-8.

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