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US 5,017,127 AGranted
Self aligning nozzle for injection molding
AssigneeThe Goodyear Tire & Rubber Company
InventorsNorbert Majerus, Larry E. Chlebina, John S. Rambacher
Life of this patent
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AssigneeThe Goodyear Tire & Rubber Company
InventorsNorbert Majerus, Larry E. Chlebina, John S. Rambacher
Estimating the term…
A nozzle assembly for mounting on a cold runner block has a cooled housing with a bore and a nozzle member with a shaft portion mounted in the bore for rotation about a bore axis. A cap portion of the nozzle member is connected to the shaft portion and has a surface for positioning close to the mold surface of a mold member. A mold cavity in the mold member has a mold orifice in the mold surface for alignment with a nozzle opening in the surface of the cap portion. The nozzle opening is positioned radially outward from the bore axis and is rotatable into alignment with the mold orifice upon rotation of the nozzle member. A nozzle passage extends from the nozzle opening to the bore for communicating a fluid molding material to the mold cavity. A spring device may be disposed between the housing and the nozzle member to urge the surface of the nozzle member towards the mold surface. A ball member with a flat sealing surface may be mounted in a spherical recess in the surface of the cap portion. The nozzle opening is in the flat sealing surface so that upon alignment of the nozzle opening with the mold orifice the ball member can rotate in the spherical recess and provide sealing engagement of the flat sealing surface with the flat mold surface of the mold member.
A nozzle assembly for communicating a fluid molding material between a first mold part and a second mold part, said nozzle assembly comprising a housing mounted on said first mold part, said housing having a bore in communication with a source of fluid molding material, a nozzle member positioned between said housing and said second mold part, said nozzle member having a shaft portion mounted in said bore and a cap portion connected to said shaft portion, said cap portion having a surface positioned close to a surface of said second mold part, a mold cavity in said second mold part, a nozzle opening in said surface of said cap portion being positioned in alignment with a mold orifice in said surface of said second mold part, said mold orifice being in communication with said mold cavity, a nozzle passage in said nozzle member extending between said nozzle opening and said bore, and said nozzle member being movable in said housing to position said nozzle opening in alignment with said mold orifice.
Dependencies are inferred from the claim text.