Patent ID: 8806909
Filing Date: 2014-08-19
Classification: B21B

Abstract:
1. A control method for a rolling stand for rolling a strip, which has a left side and a right side, comprising: detecting tensions prevailing on the left and right sides of the strip on the feed and exit sides by means of appropriate measured-value transducers, feeding the detected tensions to a control device for the rolling stand, determining by the control device on the basis of the relationship δZ=ZLE+ZLA−ZRE−ZRA a measure of a transverse positioning of the strip in relation to the rolling stand, wherein δZ is the measure, ZLE is the tension prevailing on the left side of the strip on the feed side, ZLA is the tension prevailing on the left side of the strip on the exit side, ZRE is the tension prevailing on the right side of the strip on the feed side and ZRA is the tension prevailing on the right side of the strip on the exit side, and determining by the control device on the basis of the measure for the transverse positioning of the strip a correcting variable for a correction of the transverse positioning of the strip and activating the rolling stand in accordance with the correcting variable.