Title:
ARITHMETIC UNIT FOR ROLLING MILL SPEED REFERENCE
Document Type and Number:
Japanese Patent JP3040274
Kind Code:
B
Abstract:
PURPOSE: To prevent quality of a product such as rupture of a rolled stock and gage change from being deteriorated and to improve the responsiveness of the speed reference value of a mill by providing an acceleration reference arithmetic means and a speed reference arithmetic means to calculate a speed reference value from a 1st acceleration reference and a preset speed target value.
CONSTITUTION: An (n) stage differential value (n: natural number, n=n, n-1,...,1)an+1r of an acceleration calculated from the speed of rotation of a driving motor 2a to drive a mill 2 and a preset n-th acceleration target value anr are inputted to calculate the n-th acceleration reference value an. Then, this n-th acceleration reference value an and the preset (n-1)th acceleration target value an-1r are inputted to calculate the (n-1)th acceleration reference value an-1. This speed reference arithmetic unit is, provided with acceleration reference arithmetic means 61-6n to successively carry out similar calculation and require finally the 1st acceleration reference value a1, a speed reference arithmetic means 7 to calculate a speed reference value V from the 1st acceleration reference value a1 and the preset speed target value Vr.
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Inventors:
Ieiri, Yoshiro
Application Number:
JP1993000004812
Publication Date:
March 03, 2000
Filing Date:
January 14, 1993
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
B21B35/00; B21B37/00; B21B37/46; G05D13/46; G05D13/62; B21B35/00; B21B37/00; B21B37/46; G05D13/00; (IPC1-7): B21B37/46; B21B37/00; G05D13/46; G05D13/62
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