Method and apparatus for manufacturing metallic parts by die casting
AssigneeTakata Corporation
InventorsKinji Hirai, Hisayuki Fukada, Yuuji Osada
Life of this patent
Estimating the term…
Abstract
An injection molding apparatus includes a melt furnace and a metal supply system located in the melt furnace. The metal supply system includes a pump. The injection molding apparatus also includes a first metal inlet from the melt furnace to the metal supply system and a vertical injection mechanism adapted to inject liquid metal into a die system. The injection molding apparatus also includes a second metal inlet from the metal supply system to the vertical injection mechanism.
Claims22
An injection molding apparatus, comprising:
- a melt furnace;
- a metal supply system located in the melt furnace, the metal supply system comprising a pump;
- a first metal inlet from the melt furnace to the metal supply system;
- a vertical injection mechanism adapted to inject liquid metal into a mold;
- and
- a second metal inlet from the metal supply system to the vertical injection mechanism;
- wherein:
- the metal supply system is rigidly attached to the vertical injection mechanism;
- and
- the metal supply system is movably located in the melt furnace.
The apparatus of claim 1, further comprising an actuator operatively connected to the vertical injection mechanism and adapted to vertically move the vertical injection mechanism and the metal supply system without moving the melt furnace.
- 4.The apparatus of claim 3, wherein:
- the pump comprises a metering plunger located in a sleeve;
- and
- the metal supply system comprises a conduit located within the melt furnace, the conduit having a first end and a second end, wherein the first end is operatively connected to the sleeve and the second end is operatively connected to the second metal inlet.
The apparatus of claim 4, further comprising:
- a three way valve located in the conduit;
- and
- a valve actuator operatively connected to the valve and adapted to vertically move the valve to a first position to allow liquid metal to flow from the melt furnace into the sleeve, to a second position to allow liquid metal to flow from the metering plunger toward the second metal inlet, and to a third position to allow liquid metal to flow from the vertical injection mechanism to a drain.
An injection molding apparatus, comprising:
- a melt furnace;
- a metal supply system comprising a pump and first and second conduits;
- a first metal inlet from the melt furnace to the metal supply system;
- an injection mechanism adapted to inject liquid metal into a mold;
- a second metal inlet from the conduit of the metal supply system to the injection mechanism;
- a three way valve located between the first and second conduits;
- and
- a valve actuator operatively connected to the valve and adapted to vertically move the valve to a first vertical position relative to the first conduit to allow liquid metal to flow from the melt furnace into the first conduit, to a second vertical position relative to the first conduit to allow liquid metal to flow from the first conduit through the second conduit toward the second metal inlet, and to a third position to allow liquid metal to flow from the injection mechanism to a drain.
Dependencies are inferred from the claim text.