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US 6,666,258 B1Granted
Method and apparatus for supplying melted material for injection molding
AssigneeTakata Corporation
InventorKaname Kono
Life of this patent
Estimating the term…
Abstract
An injection molding system includes a melt furnace in which a metal is melted, a feeder suitable for holding the melted metal, an injection chamber containing a first piston and an injection nozzle, a first conduit connecting the melt furnace to the feeder and a second conduit connecting the feeder to the injection chamber.
Claims54
An injection molding apparatus comprising:
- a first chamber means for melting a solid material;
- a second chamber means for holding the melted material;
- a third chamber means for holding the melted material to be transferred into a mold cavity;
- a first conduit means for transferring the melted material from the first chamber means to the second chamber means;
- a means for moving the second chamber means and the third chamber means toward the mold cavity;
- a means for preventing movement of the first chamber means during the step of moving the second chamber and the third chamber toward the mold cavity;
- a second conduit means for transferring the melted material from the second chamber means to the third chamber means;
- a first piston means in the third chamber means for transferring the melted material from the third chamber means to a mold cavity;
- and
- a screening element adjacent to a bottom of the first chamber means, the screening element comprising at least one non-horizontal wall and a top wall enclosing an interior volume and having a first outlet on the at least one non-horizontal wall, the first outlet comprising an opening into the interior volume of the screening element and the at least one non-horizontal wall circumscribing a second outlet in the bottom of the first chamber means.
7 more elements
An injection molding apparatus, comprising:
- a melt furnace suitable for melting a metal;
- a feeder suitable for holding the melted metal;
- an injection chamber containing a first piston and an injection nozzle;
- a temperature controlled barrel between the feeder and the injection chamber;
- a first conduit connecting the melt furnace to the feeder;
- a second conduit connecting the feeder to the temperature controlled barrel;
- and
- a screening element adjacent to a bottom of the melt furnace, the screening element comprising at least one non-horizontal wall and a top wall enclosing an interior volume and having a first melt furnace outlet on the at least one non-horizontal wall, the first melt furnace outlet comprising an opening into the interior volume of the screening element and the at least one non-horizontal wall circumscribing a second melt furnace outlet in the bottom of the melt furnace,
- wherein the feeder and the injection chamber are movable toward a mold cavity with each forward stroke of the first piston.
6 more elements
An injection molding apparatus, comprising:
- a melt furnace suitable for melting a metal;
- a screening element adjacent to a bottom of the melt furnace, the screening element comprising at least one non-horizontal wall and a top wall enclosing an interior volume and having a first melt furnace outlet on the at least one non-horizontal wall, the first melt furnace outlet comprising an opening into the interior volume of the screening element and the at least one non-horizontal wall circumscribing a second melt furnace outlet in the bottom of the melt furnace;
- an injection chamber containing a piston and an injection nozzle;
- and
- a conduit leading from the interior volume of the screening element toward the injection chamber.
2 more elements
Dependencies are inferred from the claim text.