Apparatus for treating powdery rubber mixtures

Details Apparatus for treating powdery rubber mixtures Apparatus for treating powdery rubber mixtures

1981-09-01

1983-11-22

Marcus, Stephen

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 83, 366 91, 366288, 425204, B29B 110

Patent

active

044165439

ABSTRACT:
Apparatus for treating powdery rubber mixtures to form processed intermediate products comprises volumetric metering means; a filling extruder; a mixing and plasticizing portion located at the downstream end of the filling extruder and having a central toothed spindle, toothed planetary spindles and an internally toothed housing; and forming out means shown as an extruder cascade connected to the mixing and plasticizing portion and extruding material through a perforated plate with cutting blades. The mixing and plasticizing portion is of only short length and can effect intensive working but does so for only a short period of time on the material passing therethrough so that the material is not damaged by being over-heated.

REFERENCES:
patent: 3349725 (1967-10-01), Bini
patent: 3861844 (1975-01-01), Miller
patent: 3981658 (1976-09-01), Briggs
patent: 4176967 (1979-12-01), Brinkmann et al.
patent: 4178104 (1979-12-01), Menges et al.
patent: 4192617 (1980-03-01), Spielhoff
patent: 4249877 (1981-02-01), Machen
patent: 4253771 (1981-03-01), Renk
patent: 4289409 (1981-09-01), Brand

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