Melt mixer or filter unit mounted in injection molding machine nozzle is cylindrical and has central blind bore terminating in channel at downstream end which is closed by ball valve during injection, valve opening when screw is withdrawn

摘要

Melt mixer or filter unit is mounted in the nozzle (3) of an injection molding machine. It has a cylindrical shape with a central blind bore (7) terminating in a channel (13) at the downstream end. This is closed by a ball valve (14) during injection, which opens when the feeder screw is withdrawn.