Die casting machine
AssigneeShibaura Machine Co., Ltd.
InventorsMakoto Tsuji, Yuto Hayashi, Saburo Noda
Life of this patent
Estimating the term…
Abstract
A die casting machine of an embodiment includes: a holding furnace holding molten metal; a sleeve located outside the holding furnace and having a molten metal supply port passing through a mold; a plunger sliding 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 supplying the molten metal into the sleeve; and a pushing force variable mechanism reducing a pushing force for the sleeve in the molten metal supply pipe when the plunger is sliding.
Claims13
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.
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.
Dependencies are inferred from the claim text.