ESTRUSORE PER LA FILATURA MEDIANTE FUSIONE DI MATERIE SINTETICHE TER MOPLASTICHE

摘要

An extrusion apparatus for plastics material having wall means defining a chamber which diverges from the inlet to the outlet thereof. Two pairs of counter-rotating rollers are associated with the chamber and divide same into first and second series-connected accumulation chambers. The outlet of the accumulation chamber is in continuous and open communication with the inlet of a fusion chamber which converges from the inlet to the outlet thereof. An extrusion headstock is connected to the outlet of the fusion chamber and includes divergent walls which extend from the end of the fusion chamber to an extrusion gauge having plural orifices therein.