Patent ID: 8506876
Filing Date: 2013-08-13
Classification: B22D

Abstract:
1. A method to control automatic pouring equipment for pouring molten metal by three servomotors that are each driven and controlled by a PLC and that act to have a ladle tilted, lifted, and moved backward and forward relative to a mold, the method comprising pouring molten metal into a mold from a ladle that is operated by a continuous driving of the three servomotors by instructions given by the PLC, at the same time measuring a weight of the automatic pouring equipment, including a weight of the three servomotors by a means to measure the weight, and calculating a change of the weight of molten metal in the ladle by the PLC, wherein during the pouring of the molten metal, disregarding results of measurements obtained by the means to measure the weight of the automatic pouring equipment, including the weight of the three servomotors, when an acceleration force works on the ladle.