Device for producing extruded bodies of a plastic material

Abstract

A device for the manufacture of extruded bodies from a plastic material or a damp pulp, comprising, arranged at an outlet end of a container for the material or the pulp, an output device (18) with a number of output wings (19) driven by a rotatably driven shaft and at an axial distance from the output device a rotatably driven extrusion device (20) with a number of extrusion wings, of which the outer ends during rotation of the extrusion device sweep closely around the inside of a surrounding cylindrical and perforated wall in order to press out to the space surrounding the wall the fed-out material through perforations in the wall. A stationary guide rail arrangement (16) is provided between the output device (18) and the extrusion device (20) and the output device and extrusion device are driven in the same direction of rotation. The output wings (19) have inclined surfaces (30) which, seen in the direction of rotation, form an acute angle (.alpha.) with a plane lying perpendicular to the rotatably driven shaft between the output device (18) and the guide rail arrangement (16), and the guide rail arrangement has guide rails (17) with surfaces which form an opposing acute angle (.beta.) with that plane. The rear edge of the surface of a said guide rail (17) projected against a plane perpendicular to the axis of rotation and the front edge of the corresponding surface of the next following guide rail (17) lie close to each other.

Dependencies are inferred from the claim text.