EXTRUDING MACHINE FOR MANUFACTURING PELLETS FROM FLAME RETARDANT RESIN COMPOSITION

摘要

PURPOSE: An extruding machine for manufacturing pellets from a flame retardant resin composition is provided to prevent the bridge of flame retardant powder and prevent a tube from being blocked by the flame retardant powder. CONSTITUTION: A ball valve(11) is installed between a flame retardant powder hopper(1) and a flame retardant sub-hopper(2), and prevents the bridge of flame retardant powder. An air knocker is installed at a tube connected to the lower part of a feeder screw(3), and prevents the tube from being blocked by flame retardant powder. An extruding screw has a kneading zone of two stages and a vent zone of one stage to prevent the pellets from being manufactured when powder is not melted.