Patent ID: 9434099
Filing Date: 2016-09-06
CPC Classification: B29C

Claim Text:
1. An extrusion machine with improved structure, comprising an internally hollow extrusion cylinder, at least one heating element associated with said extrusion cylinder, at least one cooling fan which engages an outer surface of said extrusion cylinder, and at least one temperature probe which is inserted in said extrusion cylinder, wherein said temperature probe faces a cavity of said extrusion cylinder, said temperature probe being adapted to be in direct contact with the extrusion material contained in said cavity of said extrusion cylinder; wherein said at least one temperature probe comprises at least one casing which is removably inserted in said extrusion cylinder and at least one thermocouple which is removably inserted in said at least one casing, said at least one casing being made of a thermally conductive and mechanically strong material adapted to withstand high temperatures in an order of 400° C. and high pressures up to 1000 bars; and wherein said extrusion cylinder comprises cooling fins which are arranged on an outer lateral surface thereof, said cooling fins having a thickness that can vary longitudinally with respect to an axis of said extrusion cylinder, and said cooling fins having a plurality of helical cuts which extend longitudinally with respect to the axis of said extrusion cylinder.