Twin conical screw extruder provided with pressurizing members
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United States of America Patent
Stats
-
Aug 3, 1993
Grant Date -
N/A
app pub date -
Aug 20, 1991
filing date -
Aug 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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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.
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