Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuichi Suzuki0
Date of Patent
April 5, 2011
0Patent Application Number
119084850
Date Filed
March 13, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A die cushion controller controls an ascending/descending speed of a die cushion pad based on a preset pressure pattern and positional pattern. A position/pressure control switching unit constantly monitors and compares a first speed command signal υpc corresponding to a pressure deviation signal ep and a second speed command signal υhc corresponding to a position deviation signal eh, and selects a smaller one of the speed command signals to be sent to a speed control unit.
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