Claims
- 1. Apparatus for pouring a molten metal from a vessel onto a gating system of a mold, comprising:
a nozzle disposed in the vessel whereby a flow of molten metal through the nozzle pours onto the top of the gating system; a stopper within the vessel whereby a normal flow of the molten metal through the nozzle can be terminated; and a shield retractably disposed between the nozzle and the top of the gating system; whereby the shield deflects molten metal from the top of the gating system when the stopper has terminated the normal flow of molten metal.
- 2. Apparatus for pouring a molten metal from a vessel onto a gating system of a mold comprising:
a nozzle disposed in the vessel whereby a flow of molten metal through the nozzle pours onto the top of the gating system; a stopper within the vessel whereby a normal flow of the molten metal through the nozzle can be terminated; and a shield retractably disposed between the nozzle and the top of the gating system, the shield comprising:
a drive device for driving a rod, the drive device attached to a first structural element; a shaft attached to the first structural element by sliding support means; connecting means between the rod and the shaft whereby driving the rod with the drive device will slide the shaft; a shield element connected to a first end of the shaft; and a limit switch attached to the first structural element, the limit switch having an actuating lever, the actuating lever disposed relative to a second end of the shaft to engage the second end of the shaft when the shaft slides to a position in which the shield element does not divert the flow of the molten metal from the nozzle to the top of the gating system whereby the shield deflects molten metal from the top of the gating system when the stopper has terminated the normal flow of molten metal.
- 3. Apparatus for diverting a flow of molten metal flow onto the top of a gating system of a mold, the apparatus comprising:
a drive means; and a shield element connected to the drive means whereby the drive means can alternatively move the shield element between a diverting position wherein the shield element diverts the flow of molten metal onto the top of the gating system, and a retraced position wherein the shield element permits the flow of molten metal onto the top of the gating system.
- 4. A method of diverting an abnormal flow of molten metal from a nozzle of a vessel onto a gating system of a mold moving into an indexed position under the nozzle, the method comprising the following steps:
sensing the completion of a normal molten metal flow from the nozzle; moving a diverting shield under the nozzle responsive to the sensing the completion of a normal molten metal flow from the nozzle whereby an abnormal flow of molten metal is diverted from the top of the gating system of the mold moving into an indexed position under the nozzle; and removing the diverting shield from under the nozzle responsive to the mold reaching the indexed position.
- 5. The method of claim 4, further comprising the step of enabling unseating of the stopper on the nozzle whereby a normal molten metal flow is initiated from the nozzle to the top of the gating system.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application No. 60/234,616 filed Sep. 22, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60234616 |
Sep 2000 |
US |