Apparatus for producing a synthetic resin foil

Details Apparatus for producing a synthetic resin foil Apparatus for producing a synthetic resin foil

1992-02-25

1993-06-08

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

425141, 425381, 425466, B29C 4722, B29C 4792

Patent

active

052177211

ABSTRACT:
A foil-blowing head has a nozzle lip which is substantially cylindrical and of an axial length of at least several centimeters and a radial thickness of at least several millimeters. High-force servoeffectors which can be provided with stepping servomotors, speed-reduction transmissions and eccentric drivers, can act upon radial rods to deform the lip and adjust the gap width and the thickness of the foil which is produced to provide continuous thickness correction during foil blowing.

REFERENCES:
patent: 3535739 (1970-10-01), Mehnert
patent: 3975132 (1976-08-01), Keim
patent: 4592710 (1986-06-01), Reifenhauser et al.
patent: 4741686 (1988-05-01), Cazzani et al.
patent: 4863361 (1989-09-01), Boos
patent: 4944666 (1990-07-01), Hilke et al.
patent: 4978289 (1990-12-01), Maejima
patent: 5066435 (1991-11-01), Lorenz et al.
patent: 5110518 (1992-05-01), Halter

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