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US 12,076,785 B2Granted
Dosing pump trigger system
AssigneePyrotek, Inc.
InventorsJon Tipton, Andrew Horsfall
Life of this patent
Estimating the term…
Abstract
A method for delivering molten metal to a shot sleeve of a casting machine from a molten metal furnace. A molten metal pump is positioned within the furnace. The pump includes a molten metal outlet in fluid communication with the shot sleeve. A shaft and impeller or screw assembly of the pump is selectively rotated to introduce molten metal to the shot sleeve in a predetermined quantity. The predetermined quantity is determined by a controller that receives a signal from a trigger mechanism associated with the molten metal outlet.
Claims12
A molding machine comprising a cavity to be filled with molten metal;
- a conduit system leading to said cavity;
- a mechanical pump in fluid communication with a reservoir of molten metal and the conduit system;
- and at least one trigger mechanism in association with the conduit system, said trigger mechanism configured to determine when molten metal has reached a defined point in the conduit system;
- wherein a controller calculates a quantity of molten metal flow based upon the speed of the motor and wherein said controller calculates an associated time of molten metal pump operation necessary to fill a mold and wherein said trigger mechanism instructs said controller to initiate a countdown of said time.
1 more element
Dependencies are inferred from the claim text.