Method for detecting deviation of steel strip between cold continuous rolling racks

Abstract

The invention discloses a method for detecting deviation of a steel strip between cold continuous rolling racks. A grating detector is installed between a first rack and a second rack of a rolling mill of a pickling and rolling combined unit to detect edges of the steel strip, an emitter of a grating emits light source signals, and a receiver of the grating receives the light source signals; and in a normal production situation, the grating can sense the signals, the fact that the grating cannot sense the signals shows that a deviation situation of the steel plate between the racks of the rolling mill deviates, then the grating detector emits a decelerating signal to the rolling mill, and the rolling mill starts to decelerate as a whole. The invention aims to provide the method for detecting deviation of the steel strip between the cold continuous rolling racks, whether or not deviation of the steel strip between the racks occurs is judged, and a quick stop instruction is triggered, so that the accident time is shortened.

Description

Technical field[0001]The present invention relates to a method for detecting a steel strip of a cold rolling mill.Background technique[0002]The acid rolling production line is a production line that causes hot rolled material to transport, open, straight tail, welding, pulling, pickling, cutting, rolling, and winding into a cold rolled steel coil. Its main process flow is that the hot rolled coil is transported across the raw material to the cold rolling step into the beam. The steel roll outer diameter measuring device, a steel roll width detecting apparatus, a steel coil beam, and the steel roll outer diameter data are recorded, so that the hot roller is automatically positioned to the unloader. The corresponding mandrel height. There is also a pair of midplane for correcting the position deviation of the steel roll. The midplar volume is transported to the roller of the roller, on the roller of the roller, the steel coil bundle is removed by manual. After the bundle is removed, t...

AI Technical Summary

Problems solved by technology

Non-welded strip breaks often occur in the high-speed operation stage of the production line, which can easily cause the rolls to stick to steel, and sometimes scrap steel is blocked in the frame, making it difficult to pull out the rolls and increasing the downtime of the production line

Before the non-welding seam breaks in the rolling mill, the deviation of the steel strip will generally occur, and then the strip breaking accident will occur in the rolling mill

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