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US 7,396,226 B2Granted
Nozzle sealing assembly
AssigneeMold-Masters (2007) Limited
InventorFabrice Fairy
Life of this patent
Estimating the term…
Abstract
A nozzle sealing assembly includes a cup-shaped nozzle seal cap and a sealing ring. The nozzle seal cap is coupled to a nozzle body and surrounds a tip portion of the nozzle body. The sealing ring is coupled to an outer surface of the nozzle seal cap and provides a sealing surface that is configured to slidably contact an adjacent mold plate.
Claims27
A hot runner system, comprising
- a manifold defining a manifold melt channel, the manifold being configured to receive melt from a melt source;
- a nozzle including a nozzle body and at least one nozzle tip, the nozzle being coupled to the manifold, wherein the nozzle defines a nozzle melt channel that is in fluid communication with the manifold melt channel;
- and
- a nozzle sealing assembly including
- a cup-shaped nozzle seal cap coupled to the nozzle body and surrounding a tip portion of the nozzle body, the nozzle seal cap including at least one nozzle tip aperture;
- and
- a sealing ring coupled to an outer surface of the nozzle seal cap,
- wherein the at least one nozzle tip extends through the at least one nozzle tip aperture and is coupled to the nozzle body.
5 more elements
An edge-gated hot runner nozzle, comprising:
- a nozzle body including an upper head portion, a tip portion and a nozzle melt channel;
- a plurality of nozzle tips coupled to the tip portion of the nozzle body;
- and
- a sealing assembly including
- a cup-shaped nozzle seal cap surrounding and abutting the tip portion of the nozzle body and including a plurality of nozzle tip apertures;
- and
- a sealing ring coupled to an outer surface of the nozzle seal cap,
- wherein each of the plurality of nozzle tips is coupled to the nozzle body and extends through a respective nozzle tip aperture.
5 more elements
A hot runner system, comprising
- a manifold defining a manifold melt channel, the manifold being configured to receive melt from a melt source;
- an edge-gated nozzle including a nozzle body and a plurality of nozzle tips, the nozzle being coupled to the manifold, wherein the nozzle defines a nozzle melt channel that is in fluid communication with the manifold melt channel;
- and
- a nozzle sealing assembly including
- a cup-shaped nozzle seal cap surrounding a tip portion of the nozzle body and including a plurality of tip apertures;
- and
- a sealing ring coupled to an outer surface of the nozzle seal cap,
- wherein the nozzle tips extend through a respective tip aperture and are threadably coupled to the nozzle body, and
- wherein the nozzle seal cap is configured such that there is a gap between a portion of an inner surface of the nozzle seal cap and a portion of an outer surface of the nozzle body.
6 more elements
A hot runner system, comprising
- a manifold defining a manifold melt channel, the manifold being configured to receive melt from a melt source;
- a nozzle including a nozzle body and at least one nozzle tip, the nozzle being coupled to the manifold and disposed within a cavity in a mold plate, wherein the nozzle defines a nozzle melt channel that is in fluid communication with the manifold melt channel;
- and
- a nozzle sealing assembly including
- a nozzle seal coupled to the nozzle body and surrounding a portion of the nozzle body, wherein the nozzle seal includes at least one nozzle tip aperture, wherein the at least one nozzle up extends through the at least one nozzle tip aperture and is coupled to the nozzle body, wherein at least a portion of an inner surface of the nozzle seal contacts an outer surface of the nozzle body, wherein an outer surface of the nozzle seal does not contact the mold plate;
- and
- a sealing ring coupled to the outer surface of the nozzle seal, wherein the sealing ring seals a gap between the outer surface of the nozzle seal and the mold plate.
4 more elements
Dependencies are inferred from the claim text.