AUTOMATIC GAUGE CONTROL SYSTEM AND GAUGE DEVIATION TRACKING METHOD IN COLD ROLLING MILL

摘要

PROBLEM TO BE SOLVED: To keep suitable controlling accuracy when metal plate feeding Jed is low and accelerated or decelerated. ;SOLUTION: A metal plate feeding amount reserving register 6 reserves a metal plate feeding amount based on the metal plate feeding speed outputted from inlet part speed detecting means 3 and a tracking length ΔLs is divided by the metal plate feeding amount to lead the number of shifting times i. The metal plate feeding amount reserving register 6 outputs i shift timing signals 12. Whenever the shift timing signal 12 is inputted, after a tracking register 5 shifts all of gauge deviations which are housed to the next address, a gauge deviation 13 outputted from an inlet part gauge 2 is housed in a housing region of an address 1-an address i. When correction numbers of the address caused by a late response from a mill 1 is defined as j, a FF-AGC controller 7 pulls out gauge deviations ΔHm-j of addresses m-j to feedforward control and determine mill rolling reduction 15.;COPYRIGHT: (C)2001,JPO