Removal of hardening plastic resin

摘要

A moving cleaning belt, passing over at least one tensioning roller (B) and a ''cleaning roller'' (A), are translated as a unit relative to the mixing head outlet nozzle, approaching beneath, but not touching it. The axes of the rollers are at right angles to that of the mixing head. The belt receives the plastic residue, carrying it to the tensioning roller where the residue will be removed. The cleaning belt and rollers are retracted as a unit and the cycle repeats, avoiding contact between the new and previous residues. The plastic residue is removed from the cleaning belt after hardening. An appts. to perform the above procedure is also claimed.