Device for removing plastics residues from mixer head outlet pipes

Abstract

A device for removing plastics residue from a cleaning piston having an end face and a mixer head outlet pipe of a counter-current injection mixer head, wherein the device comprises a stripping plunger having a stripping edge; a mortar for receiving the stripping plunger, the mortar comprising an outlet opening for disposing the plastics residue from the mortar which is disposed at an angle to an impact face of the mortar; a hydraulic device for bringing the mixer head and the stripping plunger towards each other in the cleaning position, in which the stripping edge of the stripping plunger is aligned with the end face of the cleaning piston, wherein the axis of the cleaning piston is situated between the mortar and the stripping plunger; and a hydraulic device for moving the stripping plunger parallel to the end face of the cleaning piston into the mortar and towards the impact face of the mortar.

Dependencies are inferred from the claim text.