LOW INERTIA LOOPER CONTROLLER AND ITS CONTROL METHOD

摘要

PURPOSE: To improve a sheet thickness and sheet thickness accuracy by the extremely lowered inertia and high-speed responsiveness of a looper roller in particular. CONSTITUTION: This extremely low inertia looper controller is constituted by providing a looper roller bearing part 108a of a looper table 112 with a hydraulic cylinder 109 for advancing and retreating the looper roller 108. The impact and inertia force at the time of contact of a strip 144 are absorbed by the hydraulic cylinder 109.