Dosing pump trigger system
AssigneePyrotek, Inc.
InventorsJon TIPTON, Andrew HORSFALL
Life of this patent
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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.
Claims20
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.
A method for delivering molten metal to a shot sleeve of a casting machine which comprises the steps of providing a molten metal furnace, said furnace having a refractory lining for holding the molten material therein, introducing a molten metal pump into said molten material, providing the pump with a molten metal outlet in fluid communication with the shot sleeve and selectively rotating a shaft and impeller or screw assembly of the pump to introduce molten metal to the shot sleeve in a predetermined quantity, wherein said predetermined quantity is determined by a controller that receives a signal from a trigger mechanism associated with the molten metal outlet.
A dosing pump suitable for introducing molten metal, said pump comprising a base housing an impeller, the base arranged to output the molten metal to an outlet conduit, said impeller connected to a shaft, said shaft connected to a motor, said motor including an inverter, said inverter in communication with a controller and said controller including a software program configured to modify RPM based upon input from a triggering mechanism such that a predetermined quantity of molten metal is delivered, wherein said triggering mechanism is located on an outlet conduit.
Dependencies are inferred from the claim text.