Micro-tracking method and system of rolled pieces in the process of rolling periodic variable-thickness strips

Abstract

A micro-tracking method and a system of rolled pieces in the process of rolling periodic variable-thickness strips belong to the technical field of rolling. The method comprises the following steps: dividing thickness zones, thinness zones and transition zones on the rolled pieces of the periodic variable-thickness strips, setting whether the incoming materials are uniform-thickness rolled piecesor periodic variable-thickness rolled pieces, determining the starting point of rolling, micro-tracking the rolling length in the process of rolling and carrying out tracking correction on the periodic variable-thickness rolled pieces. The system comprises a rolling mill; coiling machines are arranged at both sides of the rolling mill respectively; length-measuring rollers are arranged between the coiling machines and the rolling mill; thickness gauges are arranged at both sides of the rolling mill respectively; coil diameter gauges are arranged on the coiling machines; a rolling force sensorand a hydraulic cylinder are arranged on the rolling mill; tensiometers are arranged below the length-measuring rollers and pulse coders are arranged on the length-measuring rollers; the thickness gauge, the coil diameter gauge, the rolling force sensor, a displacement sensor of the hydraulic cylinder, the tensiometer and the pulse coder are respectively connected with a computer control system.

Description

Technical field: [0001] The invention belongs to the technical field of rolling, and in particular relates to a micro-tracking method and system for a rolled piece in the rolling process of periodically variable-thickness strips. Background technique: [0002] In the process of rolling periodic variable-thickness strips, two points need to be ensured: 1. The thickness control accuracy of the thick zone, thin zone and transition zone of the strip is high enough; 2. The thick zone, thin zone and transition zone of the strip The relative position of the zone is accurate, so that it can be cut into a differential thick plate with precise shape and size in the subsequent processing procedure. A key issue to realize these two points is to track the position of the rolled piece with high precision during the rolling process; however, the existing position tracking technology cannot meet the requirements of the position tracking of the rolled piece during the periodical variable-thi...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the existing position tracking technology cannot meet the accuracy requirements of the position tracking of the rolled piece in the periodical variable thickness strip rolling process, the present invention provides a method that can meet the requirements of the rolling piece position tracking accuracy during the periodical variable thickness strip rolling process. The micro-tracking method and system of the rolling piece in the periodical variable thickness strip rolling process with the position tracking accuracy requirement

Images