Control system of billet centering perforation

In this paper, based on a research project about billet centering perforation control system in one steelworks, it introduces a punching control system of automatic detection and centering. The centering device of the system mainly consists of two symmetrical and parallel Laser Probing Displacement Sensors, which are used for scanning the profile of billet. Data are collected through PLC. Then by picture processing in WINCC, the center of the section of 230~500 mm billet is found. Therefore, the problems of low efficiency and errors of manual centering are solved.