Patent ID: 11951668
Assignee: BRUCKNER MASCHINENBAU GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A device for producing a monoaxially or biaxially stretched plastic film, the device comprising:
an extruder, and
a cooling roller, to which a melt film or plastic film is fed from the extruder and is placed along a contact line on a roller jacket of the cooling roller, from where the melt or the plastic film is conveyed over a partial wrap angle around the cooling roller,
wherein an intermediate space tapering to the contact line is formed downstream of the extruder between the melt or plastic film and the roller jacket,
wherein the device further comprises at least one device for preventing condensate from precipitating on the underside of the melt or plastic film facing the roller jacket, on the roller jacket, or on a roller surface of the cooling roller, and
wherein the at least one device for preventing condensate comprises a sheet-like shielding mat or cover wall, and the shielding mat or cover wall is held in place relative to the cooling roller on one end thereof upstream of the intermediate space, the cooling roller rotating beneath and relative to the shielding mat or cover wall, and wherein the shielding mat or cover wall rests on the roller jacket in a partial circumferential region thereof and extends at least partially into the intermediate space, and a trailing end of the shielding mat or cover wall terminates in the intermediate space at a distance in front of the contact line.