Scrolls for extruding machines

Details Scrolls for extruding machines Scrolls for extruding machines

1977-11-18

1978-12-26

Christian, Leonard D.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366318, B29B 110

Patent

active

041313682

ABSTRACT:
A scroll for extruding machines comprising a single or double start helical flight or rib divided into a plurality of zones one or more of the zones being formed with a plurality of facets formed with a plurality of opposing angled members located around the root diameter of the flight or rib to homogenize and plasticate the mix as it passes along the scroll and an extruding machine incorporating the scroll comprising a liner forming an under wall of a cavitated outer jacket or barrel divided into a plurality of zones within which the scroll rotates means for circulating steam/water through each zone to maintain a predetermined temperature therein, thermo pockets for monitoring the temperatures, and a motor for driving the scroll.

REFERENCES:
patent: 3570654 (1971-03-01), Hill
patent: 3633880 (1972-01-01), Newmark
patent: 3687423 (1972-08-01), Koch et al.
patent: 3867079 (1975-02-01), Kim
patent: 3941535 (1976-03-01), Street

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