Apparatus for controlling the shape of aluminium sheet produced in a rolling mill.

摘要

The invention relates to an apparatus and process for automatically controlling the shape of sheet metal (10) produced in a rolling mill. The shape of the sheet (10) is sensed by a shapemeter (9) and each segment of the shapemeter provides an output indicative of the shape of the portion of the sheet passing over that segment. A converter (15) converts the outputs to electrical signal levels, such as current or voltage levels, and certain ones of the signal levels are averaged, and the averages are compared either with certain other signals levels, or with certain other averages in a processor (17). If the comparisons yield a difference greater than predetermined tolerance levels, control signals are generated and delivered to output controllers (19) to control parameters of the rolling mill.