Valve pin guide for a valve-gated nozzle
AssigneeMold-Masters Limited
InventorsRob Sicilia, Denis Babin
Life of this patent
Estimating the term…
Abstract
A valve pin guide is provided for guiding a valve pin from a nozzle into a gate of a mold cavity in an injection molding apparatus. The valve pin guide defines a guide aperture therethrough. The guide aperture is adapted to receive and guide the valve pin into alignment with the gate. The valve pin guide is positioned downstream from said nozzle and upstream from said gate.
Claims26
A valve pin guide for guiding a valve pin from a nozzle into a gate for a mold cavity in an injection molding apparatus, said valve pin guide defining a guide aperture therethrough, said guide aperture being adapted to receive and guide said valve pin into alignment with said gate, said valve pin guide being positionable downstream from said nozzle and upstream from said gate.
An injection molding apparatus, comprising:
- at least one nozzle, wherein said at least one nozzle defines a nozzle melt passage therethrough, and wherein said nozzle is positionable so that said nozzle melt passage is downstream from a melt source;
- a mold cavity block defining at least one mold cavity and a gate into said at least one mold cavity, wherein said gate is positioned downstream from said nozzle melt channel;
- a valve pin, wherein said valve pin is movable in said nozzle melt channel to open and close said gate;
- and
- a valve pin guide, wherein said valve pin guide is positioned downstream from said nozzle and upstream from said gate, and wherein said valve pin guide defines a guide aperture therethrough, and said guide aperture is adapted to receive and guide said valve pin into alignment with said gate.
An injection molding apparatus, comprising:
- a mold cavity block, wherein said mold cavity block defines a mold cavity therein, said mold cavity has a gate, wherein said mold cavity block has a first bore and a second bore, wherein said gate is positioned in said second bore and wherein said first bore is larger in diameter than said second bore;
- an injection nozzle, wherein a melt channel is defined in said injection nozzle to convey melt towards said gate;
- a valve pin, wherein said valve pin is positioned at least partially in said melt channel and is movable to control melt flow into said gate;
- and
- a valve pin guide, wherein said valve pin guide is adapted to receive and guide said valve pin into alignment with said gate, and wherein said valve pin guide is positioned in said first bore.
Dependencies are inferred from the claim text.