VORRICHTUNG FUER DIE HERSTELLUNG VON KUNSTSTOFFOLIEN.

摘要

The equipment for the prodn. of blown film tubing for plastic film has a rotating nozzle head with annular gap, an air blowing arrangement, and a cooling system with two or more cold air outlets round the extruding gap and fed from one common blower. This system has a feed device for each air outlet and all these devices are aerodynamically independent of each other, each having a separate air flow control.