CPC B22D 17/10 (2013.01) [B22D 17/145 (2013.01); B22D 17/2023 (2013.01); B22D 17/203 (2013.01); B22D 17/28 (2013.01); B22D 17/30 (2013.01); B22D 17/32 (2013.01); B22D 39/006 (2013.01)] | 13 Claims |
1. A die casting machine comprising:
a holding furnace configured to hold molten metal;
a sleeve located outside the holding furnace, the sleeve connected to an inside of a mold, and the sleeve including a molten metal supply port;
a plunger configured to slide through the sleeve and including a plunger rod and a plunger tip fixed to a tip of the plunger rod;
a molten metal supply pipe pushed against the sleeve to cover the molten metal supply port and configured to supply the molten metal into the sleeve;
a pushing force variable mechanism configured to reduce a pushing force of the molten metal supply pipe against the sleeve when the plunger is sliding; and
a first sensor facing a predetermined height between a lowermost portion and an uppermost portion of an inner surface of the sleeve and configured to detect that the molten metal in the sleeve reaches the predetermined height.
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13. A die casting machine comprising:
a holding furnace configured to hold molten metal;
a sleeve located outside the holding furnace, the sleeve connected to an inside of a mold, and the sleeve including a molten metal supply port;
a plunger configured to slide through the sleeve and including a plunger rod and a plunger tip fixed to a tip of the plunger rod;
a molten metal supply pipe pushed against the sleeve to cover the molten metal supply port and configured to supply the molten metal into the sleeve; and
a pushing force variable mechanism configured to reduce a pushing force of the molten metal supply pipe against the sleeve when the plunger is sliding;
wherein the sleeve includes a gas vent port provided at an upper portion, and wherein the die casting machine further comprises a second sensor provided above the gas vent port and configured to supply a molten metal surface position of the molten metal in the sleeve.
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