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Steering roller control method to ensure stable strip steering on processing line

A control method and technology for turning rolls, applied in rolling mill control devices, metal rolling, manufacturing tools, etc., can solve problems such as affecting the normal operation of processing lines, poor quality of strip products, and strip turning oscillations, and reduce abnormal downtime. time, reduce product quality problems, and ensure the effect of automatic control

Active Publication Date: 2016-08-17
通用电气(武汉)自动化有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of high-strength steel varieties, when the processing line is producing and rolling thick-gauge high-strength steel, due to the mismatch between the adjustment control of the steering roll and the mechanical system of the steering roll, the strip steering between the steering rolls on the processing line oscillates, causing strip steel Poor product quality will lead to shutdown of scrap steel in severe cases, which seriously affects the normal production of the processing line and brings great economic losses

Method used

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  • Steering roller control method to ensure stable strip steering on processing line
  • Steering roller control method to ensure stable strip steering on processing line
  • Steering roller control method to ensure stable strip steering on processing line

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0036] see figure 1 , the present invention guarantees the steering roll control method that strip steel turns to stability on the processing line, comprises the following steps:

[0037] 1) The PLC receives and processes the yield strength and thickness parameters of the running strip on the processing line;

[0038] 2) Set the output parameter Q of the steering roller torque controller of the PLC according to the aforementioned parameters n :

[0039] Q n =A*GAIN*DEV n +A*GAIN*(T 0 / T n -1)*DEV n-1 +Q n-1 ,

[0040] in,

[0041] Q n : is the output (0-1) of the steering roller torque controller at sampling time n,

[0042] Q n-1 : is the output (0-1) of the steering roller torque controller at sampling time n-1,

[0043] T 0 : program scan time (1-15ms),

[0044] T n : integration time (5-15s),

[0045] GAIN: Gain proportiona...

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Abstract

The invention discloses a steering roller control method for guaranteeing steering stability of strip steels on a treatment line. The method comprises the following steps: (1) a PLC receives the yield strengths and the thickness parameters of the strip steels operating on the treatment line; (2) the steering roller moment control parameters Qn of the PLC are set according to the parameters; (3) when the strip steels operate on the treatment line with constant speed, steering roller moment controllers are controlled through setting the adjusting coefficients A as the minimum value; when the strip steels operate with decreased speed or increased speed, the adjusting coefficients A of all the steering roller moment controllers are increased; and when the accelerations of the strip steels operating with decreased or increased speed are beyond the acceleration change dead area range, the adjusting coefficients A of all the steering roller moment controllers are set as the maximum value. The method can guarantee the steering stability of steering rollers and prevent the influence of the steering oscillation on the product quality, and can be widely applied to the technical field of strip steel production.

Description

technical field [0001] The invention relates to the technical field of strip steel production, in particular to a steering roll control method for ensuring stable steering of strip steel on a processing line. Background technique [0002] With the development of high-strength steel varieties, when the processing line is producing and rolling thick-gauge high-strength steel, because the adjustment control of the steering roll does not match the mechanical system of the steering roll, the strip steering between the steering rolls on the processing line oscillates, resulting in strip steel Poor product quality will lead to shutdown of scrap steel in severe cases, which will seriously affect the normal production of the processing line and bring great economic losses. Contents of the invention [0003] The object of the present invention is to provide a steering roll control method that ensures stable steering of the steering roll and avoids the impact of steering oscillation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/00
CPCB21B37/00
Inventor 姚伟东周子伟肖银平谭杰林晓华罗静
Owner 通用电气(武汉)自动化有限公司
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