Control method for reducing influence of slipping of tension roll set

A technology of tension roller group and control method, which is applied in the direction of tension/pressure control, etc.

Active Publication Date: 2018-04-24
WUHAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the above-mentioned patents only involve part of the equipment of the tension measuring rolls on the production line (patent "control method for preventing tension measuring rolls from slipping relative to continuous rolling strip") or water quenching tank (patent "a device for preventing tension rolls from slipping") Improvement, how to reduce the impact of slippage in the field of electrical control for the commonly used tension rolls on cold-rolled strip production units, almost no relevant patents involve

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  • Control method for reducing influence of slipping of tension roll set
  • Control method for reducing influence of slipping of tension roll set
  • Control method for reducing influence of slipping of tension roll set

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Embodiment Construction

[0054] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0055] Such as image 3 As shown, the steps to reduce the slipping effect of the tension roller group are as follows:

[0056] Step 1. Monitoring of the slipping state of the tension roller group

[0057] The structure of the tension roll group of the cold-rolled strip production line is as follows: figure 1 As shown, whether it is in the power generation state or the electric state, once the tension difference of the strip steel 12 at both ends of the tension roller 11 is greater than the friction force at the wrap angle of the tension roller, the strip steel 12 will often frictionally slide at the wrap angle, that is, slip .

[0058] There are some common rules when the tension roll group of the cold-rolled strip production line slips:

[0059] 1. Slipping will cause changes in the tension value of each section, and it is impossible...

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Abstract

The invention provides a control method for reducing the influence of slipping of a tension roll set. The control method is characterized by comprising the following steps of 1, monitoring of the tension roll set slipping state, 2, formulating of a tension roll set tension control method, and 3, reducing and even eliminating of the tension roll set slipping state through a fixed-step approach method. According to the control method for reducing the influence of slipping of the tension roll set, in a control system, through three slipping judgment strategies, whether the tension roll set in a cold rolling strip material production line slips or not and which tension roll slips are monitored in real time, and according to the production state, the tension roll set in the production line is controlled through the formulated composite control method. When the slipping state occurs, through the fixed-step approach method, the tension, torque and speed are adjusted so as to reduce and finally eliminate the occurring slipping phenomenon of the tension roll set.

Description

technical field [0001] The invention relates to a control method for reducing the slipping influence of a tension roller group, which belongs to the field of electric control. Background technique [0002] In the cold-rolled strip production unit in the metallurgical industry, the tension of the strip is mostly controlled in sections. The realization of strip tension control is generally completed by tension roller group, that is, the tension roller group is composed of 2 to 4 tension rollers, each tension roller is driven by a motor, and finally realizes different tension control requirements before and after the tension roller group. Due to the equipment itself and the operation of personnel, there is often a phenomenon of strip steel slipping at the tension roller group during actual use, which has always plagued the stable operation of the entire cold-rolled strip production unit, causing production failures such as strip deviation, In turn, it affects product quality, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/48
CPCB21B37/48B21B37/52
Inventor 赵云涛马建军李维刚
Owner WUHAN UNIV OF SCI & TECH
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