METHOD AND DEVICE FOR THE HOT DIP COATING OF A METAL STRIP

摘要

An expandable and contractible coiler mandrel for coiling metal strip, including: a rotatably supported coiler mandrel shaft with a wedge surface on its outer circumference; cooperating segments, which have an outer circumference with a coiling surface for the strip, and which have an opposing wedge surface cooperating with the wedge surface of the mandrel shaft in their end region facing away from the coiling surface; a mechanism for shifting the segments relative to an axial direction of the mandrel shaft; and a supply system for conveying lubricant to coiler mandrel regions that require lubrication. The supply system is connected with a lubricant pump having an actuating element for pumping, such that the pump is connected with the shifting mechanism or with the mandrel shaft, and the actuating element is connected with the other of the mandrel shaft or the shifting mechanism whereby pumping occurs only when the shifting mechanism is actuated.