PURPOSE: To easily change the driving course and driving velocity of a ladle and to accurately trace the points where dipping-up of molten metal and pouring of molten metal are executed by independently controlling rotations of each arm and a ladle with plural motors set at a base part and a swing base part.

CONSTITUTION: Rotations of the ladle 9 and each arm for supporting this ladle are independently controlled with plural motors set at the base part 2 and the swing base part 3. The driving course and the driving velocity of ladle can be easily changed according to the condition. As plural motors for driving each arm and the ladle are set to the base part and the swing base part, the driving motor is far from heat source and shielding of the driving motor is unnecessary to consider. Further, as each arm and the ladle are driven through link mechanism, the structure is simple. Further, plural simultaneous controls to multi-joints for the dipping-up of molten metal and pouring of molten metal, can be executed only with setting of driving velocity ratio of each arm and the ladle.