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CN-119870154-B - Automatic speed-up control method and system for cold continuous rolling mill set Carroselle coiler

CN119870154BCN 119870154 BCN119870154 BCN 119870154BCN-119870154-B

Abstract

The invention provides an automatic speed increasing control method and system for a Carlo coil winder of a cold continuous rolling unit, comprising the steps of collecting control action signals of mechanical equipment, counting time consumption of the mechanical equipment, finding a time consumption interval DeltaT of the mechanical equipment, calculating time consumption T 1 of a preset number of coil assisting under the condition of initial speed V 0 , calculating acceleration time T, calculating winding speed V 1 , judging whether the mechanical action accords with expectations under the condition that the winding speed V 1 is stable, optimizing the winding speed, monitoring the unloading condition of a steel coil, adjusting the winding speed, and rotating the steel coil at a coil assisting position to a winding position. The invention solves the problem that the automatic speed rising of the coiling machine is difficult after the coil assisting of the Karussell coiling machine is finished, improves the productivity of the cold continuous rolling unit, eliminates artificial influence factors, ensures standardized production operation, and ensures that the outlet of the rolling machine is kept at the maximum speed by judging the state of coil unloading machinery and the high-speed rolling time of the unit is longest.

Inventors

  • Zou Fuzhou
  • WANG DONGHONG
  • XIAO BAOSHU

Assignees

  • 上海宝信软件股份有限公司

Dates

Publication Date
20260508
Application Date
20250217

Claims (6)

  1. 1. An automatic speed-up control method for a cold continuous rolling mill set Carlo coil winder is characterized by comprising the following steps: step S1, collecting control action signals from the start of threading and winding of mechanical equipment to the unloading of a steel coil at a winding position of a coil unloading trolley to the trolley, counting the movement time consumption of the mechanical equipment, and finding out a movement time consumption interval DeltaT of the mechanical equipment; step S2, calculating time consumption t 1 of a preset number of winding-up turns under the condition of an initial speed V 0 ; Step S3, calculating acceleration time T according to a time-consuming interval DeltaT and time-consuming T 1 of mechanical equipment movement; step S4, calculating the coiling speed according to the acceleration time T ; Step S5, at the winding speed Under the condition of stability, judging whether the mechanical action accords with the expectation or not, and optimizing the coiling speed; step S6, monitoring the unloading condition of the steel coil, adjusting the coiling speed, and rotating the steel coil at the coiling assisting position to the coiling position; In the step S2 ; Wherein the preset number of turns is set to 3 turns; R 0 represents the radius of the winding-assisting position mandrel; delta represents the thickness of the steel coil; In the step S3, the acceleration time t= Δt-T 1 after the time spent on the winding up for a preset number of turns under the condition that V 0 speed is subtracted from the movement time spent interval Δt of the mechanical equipment is calculated; The winding speed in the step S4 ; Wherein α represents acceleration; t represents acceleration time; L represents the distance from the winding position winding core to the winding position winding core; indicating the radius of the coiled steel coil.
  2. 2. The automatic speed-up control method of a cold continuous rolling mill set karosel coiling machine according to claim 1, wherein in the step S1, the time spent by the mechanical equipment moving is the time spent from the start of threading and coiling to the time spent by the coil unloading of the coiling position of the coil unloading trolley on the trolley, and the time spent by the mechanical equipment moving is obtained through normal distribution analysis of historical data; In the step S6, the unloading condition of the coil at the coiling position is monitored in real time, and when the coil is successfully unloaded to the trolley, the coiling speed is adjusted to the maximum rolling speed V 2 ; Calculating coil unloading time according to coil unloading logic statistics, and adjusting the speed of a coiling machine in real time according to judgment of the coil unloading mechanical state; And when the outlet saddle is busy, the maximum rolling speed V 2 of the coiling machine is adjusted according to the residual time of the coil unloading trolley reaching the coil receiving position.
  3. 3. The automatic speed-up control method for a karossel coiler of a tandem cold rolling mill set according to claim 1, wherein in the step S5, under the condition that the coiling speed V 1 is stable, the real-time coil diameter R 1 of the coil-assisting position and the coil unloading process of the coiling position are combined to determine whether the mechanical action accords with the expectation, and when the coil unloading process is abnormal, the coiling speed is optimized; If R 1 is close to the auxiliary limit coil diameter and coil unloading is completed, the step S6 is executed, and if R 1 is close to the auxiliary limit coil diameter and coil unloading is not completed, the coil unloading remaining time is recalculated, and the step S4 is executed; When the abnormal coil unloading fault is judged, the quick stop operation is executed, so that the coil diameter of the steel coil does not exceed the coil supporting limit coil diameter.
  4. 4. An automatic speed-up control system for a karoswale coiler of a cold continuous rolling mill train, comprising: the module M1 is used for collecting control action signals from the start of threading and winding of the mechanical equipment to the unloading of the steel coil on the winding position of the unloading trolley to the trolley, counting the movement time consumption of the mechanical equipment and finding out a movement time consumption interval DeltaT of the mechanical equipment; A module M2 is used for calculating time consumption t 1 of a preset number of winding-up turns under the condition of an initial speed V 0 ; The module M3 is used for calculating the acceleration time T according to the time-consuming interval DeltaT and the time-consuming T 1 of the movement of the mechanical equipment; Module M4 calculating the winding speed according to the acceleration time T ; Module M5 at take-up speed Under the condition of stability, judging whether the mechanical action accords with the expectation or not, and optimizing the coiling speed; A module M6 for monitoring the unloading condition of the steel coil, adjusting the coiling speed and rotating the steel coil at the coiling assisting position to the coiling position; In the module M2 ; Wherein the preset number of turns is set to 3 turns; R 0 represents the radius of the winding-assisting position mandrel; delta represents the thickness of the steel coil; Calculating the acceleration time T= delta T-T 1 after the time consumption of the winding up preset turns under the condition that the time consumption interval delta T of the movement of the mechanical equipment is subtracted by the speed V 0 in the module M3; Winding speed in the module M4 ; Wherein α represents acceleration; t represents acceleration time; L represents the distance from the winding position winding core to the winding position winding core; indicating the radius of the coiled steel coil.
  5. 5. The automatic speed-up control system of a karossel coiler of a cold continuous rolling mill train according to claim 4, wherein in the module M1, the mechanical equipment movement time is the time from the start of threading and winding to the time when a coil of steel at the coiling position of a coil-unloading trolley is unloaded onto the trolley, and the mechanical equipment movement time interval deltat is obtained by normal distribution analysis of historical data; In the module M6, the unloading condition of the steel coil at the coiling position is monitored in real time, and when the steel coil is successfully unloaded to the trolley, the coiling speed is adjusted to the maximum rolling speed V 2 ; Calculating coil unloading time according to coil unloading logic statistics, and adjusting the speed of a coiling machine in real time according to judgment of the coil unloading mechanical state; And when the outlet saddle is busy, the maximum rolling speed V 2 of the coiling machine is adjusted according to the residual time of the coil unloading trolley reaching the coil receiving position.
  6. 6. The automatic speed-up control system of a cold continuous rolling mill set karosel coiling machine according to claim 4, wherein in the module M5, under the condition that the coiling speed V 1 is stable, the real-time coil diameter R 1 of the coil-assisting position and the coil unloading process of the coiling position are combined to determine whether the mechanical action accords with the expectation, and when the coil unloading process is abnormal, the coiling speed is optimized; The judging mechanical action is that if R 1 is close to the auxiliary limit coil diameter and coil unloading is completed, the expected situation is met, the triggering module M6 is triggered, and if R 1 is close to the auxiliary limit coil diameter and coil unloading is not completed yet, the coil unloading residual time is recalculated, and the triggering module M4 is triggered; When the abnormal coil unloading fault is judged, the quick stop operation is executed, so that the coil diameter of the steel coil does not exceed the coil supporting limit coil diameter.

Description

Automatic speed-up control method and system for cold continuous rolling mill set Carroselle coiler Technical Field The invention belongs to the field of metallurgical automation, and particularly relates to an automatic speed-up control method and system for a cold continuous rolling mill set Carroselle coiler. Background At present, the speed increasing process of the coiling machine of the cold continuous rolling unit is controlled by manual operation of operators, and the proficiency of the operators determines the speed increasing time of the coiling machine, so that the production capacity of the unit is affected by human factors and cannot be fully exerted. Patent literature (CN 114178317 a) discloses that by increasing the equipment execution frequency at the critical position, the rolling time is reduced to maximize the efficiency of the high-speed rolling time of the machine set, but the rolling speed and acceleration are not considered, the rolling time t is also fixed, the rolling speed cannot be accurately calculated, and the abnormal adjustment means is not considered. Therefore, it is necessary to study the processes of automatic winding and automatic unwinding and develop a control program for automatic speed up of the winding machine, so that the labor intensity of operators can be reduced. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide an automatic speed-up control method and system for a cold continuous rolling mill set Carroselle coiler. The invention provides an automatic speed-up control method for a Carlo Seer coiling machine of a cold continuous rolling unit, which comprises the following steps: step S1, acquiring a mechanical equipment control action signal, counting the movement time consumption of the mechanical equipment, and finding out a movement time consumption interval delta T of the mechanical equipment; step S2, calculating time consumption t 1 of a preset number of winding-up turns under the condition of an initial speed V 0; Step S3, calculating acceleration time T according to a time-consuming interval DeltaT and time-consuming T 1 of mechanical equipment movement; step S4, calculating the coiling speed according to the acceleration time T ; Step S5, at the winding speedUnder the condition of stability, judging whether the mechanical action accords with the expectation or not, and optimizing the coiling speed; And S6, monitoring the unloading condition of the steel coil, adjusting the coiling speed, and rotating the steel coil at the coiling assisting position to the coiling position. Preferably, the mechanical device control action signal in the step S1 is a control action signal from the start of threading and winding to the unloading of the coil on the trolley at the winding position of the coil unloading trolley; The time consumption of the mechanical equipment movement is the time length from the start of threading and winding to the time length of unloading the steel coil on the winding position of the coil unloading trolley to the trolley, and the time consumption interval DeltaT of the mechanical equipment movement is obtained through normal distribution analysis of historical data. In the step S6, the unloading condition of the coil at the coiling position is monitored in real time, and when the coil is successfully unloaded to the trolley, the coiling speed is adjusted to the maximum rolling speed V 2; calculating coil unloading time according to coil unloading logic statistics, and adjusting the speed of the coiling machine in real time according to the judgment of the coil unloading mechanical state. And when the outlet saddle is busy, the maximum rolling speed V 2 of the coiling machine is adjusted according to the residual time of the coil unloading trolley reaching the coil receiving position. Preferably, in the step S2; Wherein the preset number of turns is set to 3 turns; R 0 represents the radius of the winding-assisting position mandrel; Delta represents the coil thickness. And in the step S3, the acceleration time T= delta T-T 1 after the time consumption of the winding up preset turns under the condition that the time consumption interval delta T of the movement of the mechanical equipment is subtracted by the speed V 0 is calculated. Preferably, the winding speed in the step S4; Wherein α represents acceleration; t represents acceleration time; L represents the distance from the winding position winding core to the winding position winding core; indicating the radius of the coiled steel coil. Preferably, in the step S5, if the winding speed V 1 is stable, the real-time winding diameter R 1 of the winding position and the coil unloading process of the winding position are combined to determine whether the mechanical action is in line with the expected one, and when the coil unloading process is abnormal, the winding speed is optimized. If R 1 is close to the auxiliary limit coil diameter and coil unload