Apparatus for stretching the individual strands of a bundle of f

Details Apparatus for stretching the individual strands of a bundle of f Apparatus for stretching the individual strands of a bundle of f

1986-01-31

1987-09-08

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

26421114, 425 72S, 425140, D01D 512

Patent

active

046921060

ABSTRACT:
The stretching machine comprises a spinning bar, a blowing compartment, and a stretching chamber. The spinning bar has a plurality of spinning nozzles, from which the individual fibers are put out or extruded in a thermoplastic condition. The blowing compartment is provided with blowing nozzles or orifices through which air is introduced as a cooling as well as stretching means. The stretching chamber has stretching chamber walls which can form an accelerating constriction having a venturi nozzle like shape as seen in vertical cross section. The stretching chamber walls comprise a deformable material, which permits a deformation of the stretching chamber walls during operation. A plurality of adjusting mechanisms for adjusting the shape of the stretching chamber walls are connected to and distributed at various heights over the stretching chamber walls.

REFERENCES:
patent: 3684416 (1972-08-01), Lenk
patent: 3706826 (1972-12-01), Bremner et al.
patent: 3707593 (1972-12-01), Fukada et al.
patent: 3787195 (1974-01-01), Kirchheim
patent: 3795367 (1974-03-01), Mocarski
patent: 4340563 (1982-07-01), Appel et al.

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