Rotierende Kühlwalze

摘要

A rotary cooling roller (4) includes outer and inner cylinders (11, 18), two end plates (13, 14) fixed to both ends of the outer cylinder (11), and a supporting shaft (12) protruding from the end plates (13, 14). A cylindrical space (19), provided between the outer and the inner cylinders (11, 18), communicates with the inner space of the inner cylinder (18) via through-holes (20) formed in the inner cylinder (18). A coolant contained is allowed to flow back and forth between the cylindrical space (19) and the inner space of the inner cylinder. Ring-shaped spacers (22) are provided in the cylindrical space (19) for passing an external force exerted on the outer cylinder (11) to the inner cylinder (18).