A method and device for calibrating the guide plate on the entrance side of a finishing mill

Abstract

The embodiment of the invention provides a method and device for calibrating finishing mill inlet side guide plates. The method and device for calibrating the finishing mill inlet side guide plates are used for improving the calibration precision of the side guide plates, accordingly, the alignment precision in the rolling process is ensured, and the strip steel quality is improved. The first sideguide plate and the second side guide plate are oppositely arranged between a first housing and a second housing at an inlet of a finishing mill. The method and device for calibrating the finishing mill inlet side guide plates are characterized in that the first side guide plate is controlled to move to the first preset position according to the first preset manner, and the second side guide plate is controlled to move to the second preset position according to the second preset manner; the aperture value between the first side guide plate and the second side guide plate, the first distance between the first side guide plate and the first housing and the second distance between the second side guide plate and the second housing are detected; and based on the aperture value, the first distance and the second distance, the aperture values of the first side guide plate and the second side guide plate are calibrated.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method and device for calibrating a guide plate on the entrance side of a finishing mill. Background technique [0002] The main function of the side guide plate system for finishing rolling is the centering guide. Through the position control of the side guide plate, the strip steel can be accurately centered during high-speed rolling without deviation or upturning. Otherwise, it will cause the shutdown of the hot rolling line. Severe accidents such as breakage of the finish rolling rolls will result, so the stable and accurate calibration of the side guides is of great significance. [0003] With the wear and tear of the side guide plate during use and the increase in the amount of the frame, coupled with the mechanical installation error of the equipment itself, it is difficult to ensure the centering of the side guide plate, resulting in scraping of the strip steel an...

AI Technical Summary

Problems solved by technology

[0003] With the wear and tear of the side guide plate during use and the increase in the amount of the frame, coupled with the mechanical installation error of the equipment itself, it is difficult to ensure the centering of the side guide plate, resulting in scraping of the strip steel and sticking to the side guide plate, which affects the strip steel Quality, affecting the stability of rolled steel, it is easy to cause problems such as deviation, rolling, tailing and other stacking accidents

Images