Plasticating apparatus for molding devices

Details Plasticating apparatus for molding devices Plasticating apparatus for molding devices

1979-12-17

1981-09-22

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

With specified discharge means

366 78, 366293, B29B 106

Patent

active

042907020

ABSTRACT:
A plasticating apparatus operates continuously to plasticate material which is delivered intermittently to a molding device, the plasticating apparatus including a first screw conveyor which rotates in a barrel, a backfeed passage within the first screw conveyor and a second screw conveyor in the backfeed passage arranged to recirculate material in a circuit extending back through the backfeed passage. The first screw conveyor reciprocates axially so that during periods of non-delivery of plasticated material, the capacity of the circuit is increased to accommodate the accumulation of added plasticated material generated by the continuous rotation of the first screw conveyor.

REFERENCES:
patent: 3797808 (1974-03-01), Peter
patent: 3924842 (1975-12-01), Klein

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