METHOD AND DEVICE FOR TAKING UP METAL FOIL

摘要

Occurrence of crimps in a metal foil coiling apparatus is avoided easily. For this purpose, an anti-crimping roll (3a) is fixed to a vehicle (3d) moving in a direction perpendicular to the moving trace of a piston (3b) by way of a cylinder (3c) extending/shrinking the piston (3b) in a linear direction, and they are disposed at a position capable of moving along a longitudinal direction of a steel sheet (S) within a plane in which the anti-crimping roll (3a) is perpendicular to the axis of rotation of the tension reel. A control device (10) calculates an aimed winding angle (&thetas;*) of the steel sheet (S) to the anti-crimping roll (3a) capable of avoiding occurrence of crimps based on a thickness (t) and a width (L) of the steel sheet (S), and drives the cylinder (3c) and the vehicle (3d) such that the calculated angle is aligned with an actual wind-up angle THETA calculated from the stroke amount of the piston (3b), moving amount of the vehicle (3d) and the like to adjust the position of the anti-crimping roll (3a). Since the position of the anti-crimping roll (3a) is automatically controlled depending, for example, on the change of the coil diameter during coiling, occurrence of crimps can be avoided easily without imposing burdens on an operator.