Patent ID: 6050806
Filing Date: 2000-04-18
Classification: B29C

Abstract:
An injection nozzle used for injecting pressurized and melted resin into a cavity of a mold during an injection molding process, comprising:a nozzle body having an axial hole at its lower end with an annular step being formed at an upper end of said axial hole;a nozzle tip axially received in said axial hole of the nozzle body and stepped at its external surface, thus forming a stop shoulder at said external surface, said nozzle tip being brought into contact with a core of said cavity at its lower end during the injection molding process;a cushion ring interposed between said annular step of the axial hole and a top end of said nozzle tip, said cushion ring being made of a stainless steel and having an O-ring shape; anda stop ring stopping the stop shoulder of the nozzle tip, thus retaining said nozzle tip in the axial hole of the nozzle body.