DEVICE FOR CONTROLLING SHAPE IN ROLLING MILL

• Main Author: MORI MASATSUGU
• Format: Patent
• Language: English
• Published: 31.05.1990
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

PURPOSE:To perform high efficient and accurate rolling by composing a mechanism so that an optimum operation terminal can be selected in on-line in accordance with situations by using a prescribed shape evaluation function by an optimum operation terminal selecting means. CONSTITUTION:An optimum operation terminal selecting circuit 8 selects an operation terminal capable of minimizing a shape evaluation function Ji among plural terminals by using the function Ji defined based on an operation amount from a control output arithmetic circuit 7, a deviation DELTAAi between a development result from a mode development arithmetic circuit 5 and a target shape, and a shape influence coefficient bij for each operation terminal and makes the selected terminal act with an operation amount determined by the circuit 7. Therefore, an optimum terminal is selected per control cycle with on-line and automatic selection of an optimum terminal in accordance with a situation is always performable, so that function of a rolling mill having plural operation terminals is sufficiently displayed and high efficient and accurate controlling effects are obtained.