Regulating roller gap in rolled material mfr. - using graphical comparison of desired and actual cross=sections of material

摘要

The rolled material is measured contactlessly over its circumference and length and the measurement values displayed on a screen in polar coordinates as compressed data over the length of the material. The actual and desired cross-sections of the rolled material are compared graphically, stored and displayed for each characteristic rolled length. A graphic comparison is performed of at least three desired pattern images and an evaluation conducted according to the image similarity and the image comparision of the desired and actual cross-sections. A command 'roll gap open or close' is triggered depending on the image similarity and the image comparison is repeated to ensure a satisfactory result. ADVANTAGE - Enables uniform rolled goods tolerance to be achieved and operating time to be saved.