Method and device for controlling a casting machine

Apparatus for controlling the casting of molten metal comprising a pivotable casting ladle for holding said molten metal, said ladle having a nozzle defining a calibrated pouring outlet for the discharge of a uniform flow stream of molten metal, said pouring outlet being disposed to permit the retention of a head of molten metal above the nozzle in said ladle during the pivoting thereof, control means having a predetermined program for controlling the inclination of said ladle to pour said molten metal, weighing means for continuously determining the weight of metal in said ladle means responsive to said weighing means for modifying said predetermined program to cause said control means to vary the inclination of said ladle to maintain the head of metal above said outlet at a constant level and means for determining at least one parameter indicative of the end of a casting cycle and means for arresting the inclination of said ladle to stop the pouring of molten metal in response thereto.

Apparatus for controlling the casting of molten metal comprising a pivotable casting ladle for holding said molten metal, said ladle having a nozzle defining a calibrated pouring outlet for the discharge of a uniform flow stream of molten metal, said pouring outlet being disposed to permit the retention of a head of molten metal above the nozzle in said ladle during the pivoting thereof, means comprising weighing means for measuring the weight of the cast being formed to determine the flow of metal therefrom control means having a predetermined program for controlling the inclination of said ladle to pour said molten metal, weighing means for continuously determining the weight of metal in said ladle, means responsive to said weighing means for modifying said predetermined program to cause said control means to vary the inclination of said ladle to maintain the head of metal above said outlet at a constant level and means for determining at least one parameter indicative of the end of a casting cycle and means for arresting the inclination of said ladle to stop the pouring of molten metal in response thereto.

Apparatus for controlling the casting of molten metal comprising a pivotable casting ladle for holding said molten metal and having an outlet for pouring said molten metal, control means having a predetermined program for controlling the inclination of said ladle to pour said molten metal, said predetermined program being in the form of a curve and said control means including means for sensing the path of said curve, weighing means for continuously determining the weight of metal in said ladle and means responsive to said weighing means for modifying said predetermined program to cause said control means to vary the inclination of said ladle to maintain a constant head of metal above said outlet and including means for determining at least one parameter indicative of the end of a casting cycle and means for arresting the inclination of said ladle to stop the pouring of molten metal.

A method for casting molten metal from a pivotable ladle having a pouring outlet comprising the steps of locating said outlet so that a head of molten metal is formed and maintained above it during pivoting and maintaining a uniform flow of molten metal through said outlet during pivoting of said ladle, controlling the inclination of said ladle in dependence upon a predetermined control program, to pour molten metal from said ladle, continuously weighing said ladle to determine the amount of metal therein, and adjusting the control program in response to said weighing to cause the inclination of said ladle to vary to maintain the head of molten metal above said outlet at a constant level and simultaneously determine at least one parameter indicative of the end of a casting cycle and thereafter arresting the inclination of the ladle to stop the pouring of said molten metal.