Nozzle terminal for injection molding of plastic material

摘要

A nozzle terminal for injectors of injection molding apparatus of plastic materials, includes an inner tubular body or tip defining a flow passage for injected plastic material, and an outer ring coaxial with the tip. The tip includes a radially inner element made of a first material and a radially outer element made of a second material, and arranged in contact with a substantial axial portion of the radially inner element up to the distal end thereof, and mechanically coupled thereto.

主权项

1. A nozzle terminal for injection molding of plastic materials, comprising an inner tubular body or tip defining a flow passage for injected plastic material and having a proximal end and a distal end, and an outer ring coaxial with the tip, wherein the tip of the nozzle terminal includes a radially inner element made of a first material and a radially outer element made of a second material and arranged in contact with a substantial axial portion of said radially inner element up to the distal end thereof,
wherein one of said radially inner and outer elements has at least one hooking tooth in the form of a radially extending projection engaged within a seat in the form of a recess provided in a mating surface of the other of said radially outer and radially inner elements to mechanically couple the radially inner element to the radially outer element, and wherein the outer ring includes a hooking tooth configured to mechanically couple the outer ring to an outer surface of the radially outer element.