Screw element for a material processing machine

Details Screw element for a material processing machine Screw element for a material processing machine

1985-03-18

1986-11-25

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

198677, 366 85, B29B 110

Patent

active

046245774

ABSTRACT:
A screw element for use in a material-processing machine comprising at least one screw formed by a central driving shaft (2) on which are mounted a plurality of hollow elements (12, 13 . . . ) provided on their inner wall with grooves (31) engaging with corresponding splines (21) of the central shaft (2). A cylindrical inner collar (3) made from a product resistant to the mechanical driving stresses and on the inner wall (32) of which are formed the grooves (31) corresponding to the splines (21) of the shaft, and an outer collar (4) made from a product resistant to the abrasion of the processed material and on which are formed, within the body of the outer collar, helical threads (42) or other peripheral material-processing means, the outer collar (4) being mounted without clearance on the inner collar (3) and being connected to the inner collar for rotation therewith. The invention is applicable in particular to the construction of extruding machines.

REFERENCES:
patent: 3977515 (1976-08-01), Lewoczko
patent: 4334785 (1982-06-01), Blach
patent: 4416544 (1983-11-01), Blach
patent: 4519496 (1985-05-01), Ludvigsen

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