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Tension roller control method to ensure stable strip tension on the processing line

A control method and tension roller technology, applied in the direction of tension/pressure control, etc., can solve problems affecting the normal operation of the processing line, poor quality of strip steel products, strip tension oscillation, etc., to reduce abnormal downtime, solve tension oscillation, Reduce the effect of product quality problems

Active Publication Date: 2016-08-24
通用电气(武汉)自动化有限公司
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  • Description
  • Claims
  • Application Information

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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 adjustment control of the tension roll and the mechanical system of the tension roll, the tension of the strip steel between the tension 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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  • Tension roller control method to ensure stable strip tension on the processing line
  • Tension roller control method to ensure stable strip tension on the 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 tension roller control method that handles strip steel tension stability on the 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 Q of the tension roller torque controller of the PLC according to the aforementioned parameters n :

[0039] Q n =Q n-1 +A*GAIN*(T 0 / T n )*(DEV n +DEV n-1 ) / 2,

[0040] in,

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

[0042] Q n-1 : is the output (0-1) of the tension 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 proportional coefficient (9*10 ...

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Abstract

The invention discloses a tension roller control method for ensuring the stability of the tension of strip steel on a processing line. The method comprises the following steps: (1) receiving the yield strength and thickness parameters of the strip steel operated on the processing line through a PLC (programmable logic controller); (2) setting the moment control parameter Qn of a tension roller of the PLC according to the parameters; and (3) when the strip steel on the processing line is operated at a constant speed, setting adjusting factors A as the minimum value to control a moment controller of the tension roller; when the strip steel is in acceleration or deceleration, increasing all the adjusting factors A of the moment controller of the tension roller; and when the accelerated speed of the strip steel which is in the acceleration or the deceleration is over the dead zone range of the changes of the accelerated speed, setting the adjusting factors A of the moment controller of the tension roller as the maximum value. The method can be used for ensuring the stability of the tension of the tension roller, and preventing the product quality from being affected by the tension vibration. The method can be widely applied to the technical field of the production of the strip steel.

Description

technical field [0001] The invention relates to the technical field of strip steel production, in particular to a tension roller control method for ensuring stable tension of strip steel on a 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 adjustment control of the tension roll and the mechanical system of the tension roll, the tension of the strip steel between the tension rolls on 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 object of the present invention is to provide a tension roller control method that ensures the tension stability of the tension roller and avoids the impact of tensio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/48
CPCB21B37/48
Inventor 姚伟东张亚然肖银平谭杰袁敏江琳
Owner 通用电气(武汉)自动化有限公司
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