Twin conical screw extruder provided with pressurizing members

Details Twin conical screw extruder provided with pressurizing members Twin conical screw extruder provided with pressurizing members

1991-08-20

1993-08-03

Hornsby, Harvey C.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 89, 425204, B29B 720, B01F 708

Patent

active

052322807

ABSTRACT:
A twin conical screw extruder which includes a twin conical container having a material inlet port, a material extruding port on the opposite side of the material inlet port, and an inner conical wall surface converging toward the material extruding port, a pair of conical screw rotors accommodated in the twin conical container, each of the conical screw rotors having a free end adjacent to the material extruding port and a base portion rotatably supported such that the screws of the two rotors intermeshingly rotated in two different directions and a pressurizing device provided in each free end of the screw rotors so as to forcibly keep the free ends of the screw rotors in contact with each other at a predetermined contact pressure so as to overcome a pressure arising from the extruding operation.

REFERENCES:
patent: 2466934 (1949-04-01), Dellenbarger
patent: 3138825 (1964-06-01), Colombo
patent: 4047705 (1977-09-01), Hanslik
patent: 4408888 (1983-10-01), Hanslik
patent: 4764020 (1988-08-01), Moriyama
patent: 4773763 (1988-09-01), Weber

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