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Full-automatic tail throwing control method and system for cold rolling continuous annealing unit

A technology of continuous annealing unit and control method, which is applied in the direction of rolling mill control device, metal rolling, metal rolling, etc., which can solve the problems of low machine composition rate and large amount of waste for strip tail cutting, so as to reduce the amount of waste Effect

Active Publication Date: 2020-01-31
SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a fully automatic tail-flick control method and system for a cold-rolling continuous annealing unit, which solves the technical problems in the prior art that the tail-flick link has a large amount of waste and the machine composition rate is low.

Method used

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  • Full-automatic tail throwing control method and system for cold rolling continuous annealing unit
  • Full-automatic tail throwing control method and system for cold rolling continuous annealing unit
  • Full-automatic tail throwing control method and system for cold rolling continuous annealing unit

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Embodiment 1

[0039] Such as figure 2 As shown, this embodiment provides a method for fully automatic tailing control of a cold rolling continuous annealing unit, including:

[0040] S101: When the remaining strip length is less than the first preset length, output the first control signal to reduce the strip speed from the uncoiling speed to the first running speed;

[0041] As an optional embodiment, the first preset length is 18-20 meters.

[0042]The first preset length can be 18 meters, 19 meters, or 20 meters. In this embodiment, the first preset length is 20 meters. When the remaining strip length is less than 20 meters, start to slow down and flick. Due to the limited tail-flick time, the first preset length cannot be set too large, otherwise it will lead to too much waste in the limited tail-flick time.

[0043] The reason why the set tail time is limited is that the stock of the inlet looper strip is only enough to ensure the continuous operation of the central section. If the ...

Embodiment 2

[0073] Such as image 3 As shown, based on the same inventive concept, this embodiment provides a fully automatic tailing control system for a cold rolling continuous annealing unit, including:

[0074] The first output module 201 is used to output a first control signal to reduce the speed of the strip from the uncoiling speed to the first operating speed when the remaining strip length is less than the first preset length;

[0075] The second output module 202 is used to output a second control signal to reduce the speed of the strip from the first operating speed to the second operating speed when the strip tension between the uncoiler and the tension roller drops to zero;

[0076] The obtaining module 203 is used to obtain the remaining length of the tape tail, the remaining length of the tape tail is the difference between the first positioning length and the positioning moving length; wherein, the first positioning length is the shearing length when the tension of the st...

Embodiment 3

[0090] Based on the same inventive concept, this embodiment provides a computer-readable storage medium, on which a computer program is stored, and on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0091] When the remaining strip length is less than the first preset length, output the first control signal to reduce the strip speed from the uncoiling speed to the first running speed; when the strip tension between the uncoiler and the tension roller drops to zero, output the first control signal Two control signals reduce the speed of the strip steel from the first operating speed to the second operating speed; obtain the remaining length of the belt tail, and the remaining length of the belt tail is the difference between the first positioning length and the positioning movement length; wherein, the first positioning The length is the sum of the distance from the shear point to the uncoiler an...

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Abstract

The invention discloses a full-automatic tail throwing control method and system for a cold rolling continuous annealing unit. The method comprises the steps that when the length of remaining strip steel is smaller than a first preset length, a first control signal is output to enable the strip steel speed to be reduced from the uncoiling speed to the first running speed; when the strip steel tension between an uncoiling machine and a tension roller is reduced to zero, a second control signal is output to enable the strip steel speed to be reduced from the first running speed to the second running speed; the remaining strip tail length is obtained and is the difference between a first positioning length and a positioning moving length, wherein the first positioning length is the sum of thedistance between a shearing point and the uncoiling machine when the strip steel tension is reduced to zero and the perimeter of a mandrel of the uncoiling machine, and the positioning moving lengthis the distance between the moment when the strip steel tension is reduced to zero and the moment when the strip steel moves at the second running speed; and when the remaining strip tail length is smaller than a second preset length, a third control signal is output to enable the unit to stop and shear a strip tail. According to the method, the strip tail cutting waste delivery amount in the tailthrowing link can be greatly reduced, and the yield of the unit is increased.

Description

technical field [0001] The invention relates to the technical field of automatic control in the metallurgical industry, in particular to a method and system for fully automatic tailing control of a cold rolling continuous annealing unit. Background technique [0002] The main equipment in the entrance section of the cold rolling continuous annealing unit includes uncoiler, double-layer shear, welding machine, tension roller and entrance looper. The uncoiler is responsible for coil uncoiling, and the double-layer shear is responsible for strip cutting and head and tail scrap cutting. , The welding machine is responsible for the welding of the tail and the head, the tension roller is responsible for the tension establishment and operation of the entrance section and the entrance loop, and the entrance loop is the continuous operation of the central section to store the strip when the steel coil is replaced at the entrance section. The technological operations mainly include co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00B21B15/00
CPCB21B15/00B21B37/00B21B2015/0064
Inventor 李立董文亮张兴刘靖刘磊郑利元齐杰斌
Owner SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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