| 摘要 |
PROBLEM TO BE SOLVED: To stably weight an accurate volume of molten metal supply by detecting a weight of a molten metal supplying ladle and a molten metal being taken in it, which are hung down with a hang down means, by a weight detecting means installed at a top end of a molten metal supply ladle tumbling over/transfer arm and, by releasing an engagement of the hang down means after depositing it to a fastening means. SOLUTION: When a molten metal is poured into a mold cavity, the metal is supplied to an injection sleeve via a molten metal supplying ladle 90. A switch valve 120a is opened for sucking a gas inside the metal supplying ladle 90 so as to take a molten metal M in a retention furnace F into the metal supplying ladle 90. In accordance with a signal emitted by a weight detecting means 210 when it is detected that a given volume is taken in, the ladle 90 is fastened by a fastening means 80. After then, the ladle 90 is tumbled for cutting the metal, while it is pulled up by a transfer arm 200, and is transferred thereafter. In this case, an air cylinder 82 of the fastening means 80 is driven so as to release an engagement of the hang down means 60 and fasten the molten metal supplying ladle 90, after depositing the weight of the ladle 90 and the molten metal inside the ladle to the fastening means 80.
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