Apparatus for the preparation of thermoplastic materials

Details Apparatus for the preparation of thermoplastic materials Apparatus for the preparation of thermoplastic materials

B - Operations, Transporting

29

C

18/731

B29C 47/64 (2006.01) B29B 7/48 (2006.01) B29C 47/42 (2006.01)

Patent

CA 1099875

INVENTION OF Heinz Brinkmann Horst Spielhoff TITLE OF THE INVENTION "Apparatus for the preparation of thermoplastic materials" ABSTRACT OF THE DISCLOSURE Apparatus for the preparation and extrusion of plastics material or rubber, comprising a planet rolling extruder and a feed portion dis- posed up-stream thereof with a main shaft of the planet rolling ex- truder being surrounded by planet shafts and being driven jointly with a feed-screw of the feed portion, in which some of the planet shafts at that one of their ends which is adjacent the feed-screw, are reduced in section to form transfer shaft portions and thereby receiving chambers for material fed to the planet rolling extender by the feed portion. The transfer shaft portions may be cylindrical with a diameter smaller than the diameter of the root circle of the planet shaft gearing or may have, adjacent the feed-screw, a diameter smaller than the root circle of the planet shaft gearing and increase in diameter in a direction away from the feed-screw until they achieve the full shaft outline. -1-

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