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A Control Method for Reducing the Slipping Effect of Tension Rollers

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

Active Publication Date: 2019-07-09
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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  • A Control Method for Reducing the Slipping Effect of Tension Rollers
  • A Control Method for Reducing the Slipping Effect of Tension Rollers
  • A Control Method for Reducing the Slipping Effect of Tension Rollers

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Embodiment Construction

[0054] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0055] like image 3 shown below, the steps to reduce the effect of tension roller set slip are as follows:

[0056] Step 1. Monitoring of the slip 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 in the figure, 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 wrapping angle of the tension roller, the strip steel 12 tends to frictional sliding at the wrapping angle, that is, slipping .

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

[0059] 1. Slippage will change the tension value of each section, and it is impossible to achieve con...

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Abstract

The present invention provides a control method to reduce the impact of the tension roller group, which is characterized by the following steps: Step 1, the tension roller group to skid status monitoring;The approximation method reduces or even eliminates the tension roller group.The present invention passes three discrimination strategies in the control system to monitor whether the tension roller group of the cold -rolled band material production line is in real time and which tension roller is slipping. According to the production status, the formulation composite control method is used to use the composite control method to the production line tension roller group.Control.When a slippery state appears, the tension, torque, and speed of the fixed steps approximately adjust the tension, torque, and speed until it eliminates the slide of the tension roller group.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(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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