HOT RUNNER NOZZLE WITH A SEGMENTED HEATER

摘要

A nozzle heater assembly coupled to a hot runner nozzle includes a heater support made of at least two support segments spaced apart by a gap. A heater element secured to both support segments is configured to limit the gap between the two segments. The nozzle heater assembly to be coupled to a hot runner may also include in other applications a heater support formed of a single piece and configured as a hollow helical tube including at least two axial gaps. A heater element is secured to the helical tube, where the helical tube can be compressed or stretched axially to alter a clamping force generated when the helical tube and the heater are coupled to the hot runner nozzle.

主权项

1. A nozzle heater assembly to be coupled to a hot runner nozzle, the heater assembly comprising:
a heater support made of at least two adjacent support segments spaced apart by at least one first gap, and a heater element secured to the at least two support segments, whereby the heater element makes indirect contact with the hot runner nozzle via nozzle sleeve segments.