| 摘要 |
A melted liquid supply apparatus of a low pressure die casting machine is provided to keep airtight in a melted liquid supply pipe line and to restrict the pressure loss in a casting holding furnace by rotating a valve of a device for opening and shutting. A melted liquid supply apparatus of a low pressure die casting machine comprises a melting furnace(10) manufacturing melted liquid; a casting holding furnace(12) receiving melted liquid manufactured in the casting holding furnace; a melted liquid supply pipe line(14) positioned between the melting furnace and the casting holding furnace to supply melted liquid manufactured in the melting furnace with the casting holding furnace; a degassing room(16) mounted in the melted liquid supply pipe line to remove gas in melted liquid manufactured in the melting furnace; and an opening and shutting device(18) mounted at the front of the casting holding furnace to open and shut the casting holding furnace. The device is composed of a valve sheet(31) formed in the melted liquid supply pipe line, a valve(30) adhering to the valve sheet to open and shut the melted liquid supply pipe line, and an actuator(34) connected to the valve with an operation rod(32) equipped with an air cylinder for rotating the valve(35) so as to vertically move the valve when the valve moves down and contacts the valve sheet.
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