Injection molding apparatus having an edge-gated runnerless nozzle
AssigneeMold-Masters (2007) Limited
InventorBruce Catoen
Life of this patent
Estimating the term…
Abstract
A nozzle body defines an upstream channel. A downstream bracing portion has a lateral bore. A nozzle tip extends laterally through the lateral bore of the bracing portion and has a sealing surface for engaging a gate component that defines a mold gate. The runnerless nozzle further includes a securing component inserted into the bracing portion to hold the nozzle tip against the bracing portion. The bracing portion or the securing component defines a lateral channel in communication with the upstream channel for delivering molding material to the nozzle tip. The nozzle tip can be removed by removing the securing component.
Claims30
A runnerless nozzle, comprising:
- a nozzle body defining an upstream channel;
- a downstream bracing portion having a lateral bore and including a recess;
- a nozzle tip extending laterally through the lateral bore of the bracing portion, the nozzle tip having a sealing surface for engaging a gate component that defines a mold gate;
- and
- a securing component separate from the nozzle body and disposed in the recess of the bracing portion to hold the nozzle tip against the bracing portion;
- wherein at least one of the bracing portion and the securing component defines a lateral channel in communication with the upstream channel for delivering molding material to the nozzle tip;
- and
- wherein at least one of the bracing portion and the securing component is slidably coupled to the nozzle body.
An injection molding apparatus, comprising:
- a plate assembly;
- a sprue bushing;
- a manifold defining a manifold channel, the manifold connected to the plate assembly and the sprue bushing;
- and
- a nozzle connected to the manifold, including:
- a nozzle body defining an upstream channel;
- a downstream bracing portion having a plurality of lateral bores and a recess;
- a plurality of nozzle tips extending laterally through the lateral bores of the bracing portion, each nozzle tip having a sealing surface for engaging a gate component that defines a mold gate;
- and
- a securing component separate from the nozzle body and disposed in the recess of the bracing portion to hold the nozzle tips against the bracing portion;
- wherein at least one of the bracing portion and the securing component defines lateral channels in communication with the upstream channel for delivering molding material to the nozzle tips;
- and
- wherein at least one of the bracing portion and the securing component is slidably coupled to the nozzle body.
An injection molding apparatus, comprising:
- a plate assembly;
- a sprue bushing;
- a manifold defining a manifold channel, the manifold connected to the plate assembly and the sprue bushing;
- and
- a nozzle connected to the manifold, including:
- an upstream nozzle body defining an upstream channel, and
- a downstream nozzle portion slidably connected to the upstream nozzle body, the downstream nozzle portion including a bracing portion having a plurality of lateral bores and a recess, a plurality of nozzle tips extending laterally through the lateral bores of the bracing portion, each nozzle tip having a sealing surface for engaging a gate component that defines a mold gate, and a securing component disposed in the recess of the bracing portion to hold the nozzle tips against the bracing portion,
- wherein at least one of the bracing portion and the securing component defines lateral channels in communication with the upstream channel for delivering molding material to the nozzle tips
- a cavity plate located downstream of the downstream nozzle portion;
- and
- a locater disposed between the securing component and the cavity plate to locate the downstream nozzle portion with respect to the cavity plate.
Dependencies are inferred from the claim text.