Edge-gated nozzle
AssigneeMold-Masters (2007) Limited
InventorFabrice Fairy
Life of this patent
Estimating the term…
Abstract
An injection molding system is disclosed that includes a hot runner manifold for providing a melt stream of moldable material to at least one hot runner nozzle that is in fluid communication with one or more mold cavities via at least one injection manifold disposed proximate a downstream end of the nozzle. The at least one injection manifold has a substantially U-shape with at least one mold cavity being disposed between opposing arm segments thereof. Each mold cavity is fed by a pair of nozzle seals, wherein one of the pair of nozzle seals extends inwardly from one of the opposing arm segments while the other of the pair of nozzle seals extends inwardly from the other of the opposing arm segments for directing a melt stream into the mold cavity.
Claims20
An injection molding system comprising:
- a melt delivery body having a melt channel extending along a longitudinal axis thereof for receiving a melt stream from a melt source;
- an injection manifold defining a melt channel in fluid communication with the melt channel of the melt delivery body and being disposed proximate a downstream end of the melt delivery body to radially extend therefrom relative to the longitudinal axis of the melt delivery body, the injection manifold melt channel including a first arm segment and a second arm segment extending from a base segment such that the first and second arm segments are disposed on opposing sides of a first mold cavity, the first mold cavity having a longitudinal axis that is parallel with the longitudinal axis of the melt delivery body;
- and
- a first pair of nozzle tips in fluid communication with the injection manifold melt channel for delivering the melt stream to the first mold cavity, wherein one of the first pair of nozzle tips is removably coupled to the first arm segment and the other of the first pair of nozzle tips is removably coupled to the second arm segment such that each of the first pair of nozzle tips extends toward the first mold cavity longitudinal axis to feed a respective one of a pair of mold gates on opposing sides of the first mold cavity.
An injection manifold for receiving a melt stream of moldable material from an injection molding nozzle and delivering the melt stream to a mold cavity, comprising:
- a body portion having first and second arm segments extending from a base segment such that the body portion is generally U-shaped, wherein the mold cavity is positioned between opposing interior walls of the first and second arm segments to longitudinally extend substantially transverse to the body portion;
- and
- a nozzle seal disposed through a bore in the first arm segment and a nozzle seal disposed through a bore in the second arm segment such that the pair of nozzle seals delivers the melt stream from the injection manifold to the mold cavity via a pair of mold gates.
An injection molding system comprising:
- a melt delivery body having a delivery body melt channel extending along a central axis for receiving a supply of melt from a melt source;
- at least one injection manifold extending outwardly from the melt delivery body along an axis that is transverse to the central axis, wherein the injection manifold includes an injection manifold melt channel in fluid communication with the delivery body melt channel, the injection manifold melt channel having a first arm and a second arm extending from a central portion;
- a first nozzle tip in fluid communication with the first arm and extending towards the second arm;
- and
- a second nozzle tip in fluid communication with the second arm and extending towards the first arm.
Dependencies are inferred from the claim text.