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Dynamic control method for position following of side guide plates of rolling mill

A technology of dynamic control and side guide plate, which is applied in the direction of rolling mill control device, metal rolling, metal rolling, etc., can solve the problems of the manufacturer's economic loss of product quality, crash of rolling mill equipment, and misalignment of rolled pieces, so as to reduce camber Phenomenon, reduction of impact damage, reduction of yield

Active Publication Date: 2014-08-06
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the push plates on both sides cannot be kept in sync during the movement, the rolled piece will be misaligned, and the shape of the steel plate will be poor after entering the rolling mill. In serious cases, the rolling mill equipment will be damaged, which will bring huge economic losses and losses to the manufacturer. product quality problem

Method used

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  • Dynamic control method for position following of side guide plates of rolling mill
  • Dynamic control method for position following of side guide plates of rolling mill
  • Dynamic control method for position following of side guide plates of rolling mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment dynamically controls the position of the front side guide plate of a rolling mill in a medium plate factory, and the parameters of the side guide plate of the rolling mill are as follows:

[0023]

[0024] Two displacement sensors work, two spare).

[0025] The push plates on both sides can be single-action or linkage, and have their own independent automatic position closed-loop control system. Single action can be debugged and manually centered, and linkage is used for normal steel rolling production methods.

[0026] This embodiment provides a dynamic control method for following the position of the rolling mill side guide plate, such as figure 1 As shown, the main steps are:

[0027] First, install two built-in MTS displacement sensors on the two hydraulic cylinders on each side of the push plate, one for use and one for backup, and identify them by geographic location (south / north), and set sensor selection buttons on the HMI operation screen. ...

Embodiment 2

[0042] The specific implementation steps of this embodiment are the same as the parameters of the rolling mill side guide used in Embodiment 1. The difference is that this embodiment dynamically controls the position follow of the rolling mill rear guide in a certain medium plate factory.

[0043] There are two ways to operate the side guides: manual and automatic. Manual is mainly used for test run after maintenance and steel centering during steel rolling. Automatic is mainly used for interlocking operation of the front and rear side guides during steel rolling to ensure that the billet is in the open state of the side guides. down into the side guide area to prevent damaging the side guide. Both modes are manual priority.

[0044] The push plates on both sides can be single-action or linkage, and have their own independent automatic position closed-loop control system. Single action can be used for calibration and debugging and manual centering, and linkage is used for nor...

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Abstract

The invention relates to a dynamic control method for position following of side guide plates of a rolling mill. The method mainly includes the steps of installation of position detection sensors and position calibration of push plates. The position detection sensors are installed on the two hydraulic cylinders of the push plates on the two sides respectively. The method further includes the step of position automatic following in the moving process of the side guide plates. According to the control method for automatic following of positions of the guide plates on the front and rear sides and the push plates on the two sides of the rolling mill in a medium steel plate rolling production line, the push plate on the other side can be automatically adjusted and controlled well with the width of the push plate on one side as a standard and can follow changes of the width of the standard end all the time in the operating process, the push plates on the two sides of the side guide plates can be centered and adjusted reliably and automatically, and the use effect is excellent. After the adjustment method is used, the phenomenon of edge cambers can be reduced in the rolling process, and therefore product quality and the material yield are improved and downtime is shortened; impact failure on the rolling mill can be reduced, the rhythm of production is quickened, and the production yield is increased.

Description

technical field [0001] The invention relates to a mechanical motion control method, in particular to a dynamic control method for automatically following the positions of push plates on both sides of a side guide plate of a rolling mill. Background technique [0002] In the medium and heavy plate factories across the country, there are still many manufacturers who use the side guide plates at the front and rear of the rolling mill to use push plates on both sides to be driven by a hydraulic cylinder and mechanically synchronized in the middle. Absolute encoders measure the width, but the measurement is inaccurate due to the existence of mechanical gaps and whether the handle is fastened or not, and the thrust of the push plate is not enough. In this situation, the mechanical structure of the side guide plate is changed to a fully hydraulic drive structure, and two hydraulic cylinders are installed on each side of the push plate, and a linear displacement sensor for auxiliary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00
Inventor 赵桂琴陈东文张春阳潘德军嵇翔何美华
Owner NANJING IRON & STEEL CO LTD