Loop control method capable of ensuring tension stability of strip steel processing line

A control method and processing line technology, applied in the direction of tension/pressure control, etc., can solve the problems affecting the normal operation of the processing line, poor quality of strip steel products, strip tension oscillation, etc., so as to avoid the impact of product quality, solve tension oscillation, Guarantee the effect of stable production

Inactive Publication Date: 2015-08-26
武钢集团有限公司
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Problems solved by technology

[0002] With the development of high-strength steel varieties, when the processing line produces and rolls thick gauge high-strength steel, due to the mismatch between the looper adjustment control and the looper mechanical system, the tension of the strip steel in the looper area of ​​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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  • Loop control method capable of ensuring tension stability of strip steel processing line

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0014] see figure 1 , the present invention guarantees the looper control method that handles line strip steel tension stability, comprises the following steps:

[0015] Step 1, the control chip receives the yield strength and thickness parameters of the running strip on the processing line;

[0016] Step 2. Set the looper hoisting torque adjustment parameters according to the aforementioned parameter control chip:

[0017] Q n =Q n-1 +A*GAIN*(T 0 / T n )*(DEV n +DEV n-1 +DEV n-2 ) / 3,

[0018] in,

[0019] Q n : is the output (0-1) of the looper hoisting torque controller at sampling time n,

[0020] Q n-1 : is the output (0-1) of the looper hoisting torque controller at sampling time n-1,

[0021] T 0 : is the program scan time (1-15ms),

[0022] T...

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Abstract

The invention discloses a loop control method capable of ensuring tension stability of a strip steel processing line. The loop control method comprises the following steps of step1, controlling a chip to receive and process yield strength and thickness parameters of operation strip steel in the processing line; step2, setting the adjustment parameter Qn of loop winching torque according to the above parameter control chip; step3, setting a minimum value as an adjustment coefficient A when operating the strip steel on the processing line at constant speed; when the strip steel is accelerated and decelerated, increasing the adjustment coefficient A corresponding to the loop winch; when the accelerated speed of the accelerated and decelerated strip steel is beyond the change dead zone range of the accelerated speed, setting the adjustment coefficient A of the loop winch as a maximum value. According to the loop control method, the loop can be precisely controlled during deceleration and acceleration, and tension deviation in the loop area can be solved, the strip steel processing line can be normally produced, the quality of the strip steel product is improved, and thus the loop control method can be widely applied to the control field of the strip steel processing line.

Description

technical field [0001] The invention relates to the field of strip steel processing line control, in particular to a looper control method for ensuring stable tension of the strip steel in the processing line. Background technique [0002] With the development of high-strength steel varieties, when the processing line produces and rolls thick gauge high-strength steel, due to the mismatch between the looper adjustment control and the looper mechanical system, the tension of the strip steel in the looper area of ​​the processing line oscillates, causing 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 purpose of the present invention is to overcome the above-mentioned deficiencies in the background technology, to provide a looper control method to ensure the stability of the tension of the stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/50
CPCB21B37/50
Inventor 姚伟东陈威杨天贵肖银平尹幼华邓云露
Owner 武钢集团有限公司
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