Cooling device for a plant for the manufacture of a moving web of material, in particular for a films - stretching apparatus

摘要

Cooling device for a plant for the manufacture of a moving web of material, in particular for a films - stretching apparatus, with the following features:– the cooling device includes a cooling cylinder (23),– the cooling roller (23), in a cooling trough (21) is arranged, which up to a filling level (29 '') with a liquid cooling medium (29) is filled can be filled or,– it is an ultrasound - vibrating device (41) with at least two ultrasound - oscillators (41a) is provided, which is below the filling level (29 '') in the cooling trough (21) are arranged, and– the at least two ultrasound - oscillators (41a) are arranged at a distance with respect to the surface (23a) of the cooling roller (23) is arranged, and namely adjacent to an edge region (23c) on the rotating cooling rollers - surface (23a), wherein the edge region (23c) adjacent to or adjacent to the opposite end faces (23 '') of the cooling roller (23) is provided.