| 摘要 |
PROBLEM TO BE SOLVED: To provide cast molding equipment and a cast molding method, which simplify operations by eliminating a cleaning operation and reducing the number of man-hours for the operations, which reduce waste, caused by the disposal of a molding material, to the utmost, and which can prevent a malfunction in a bulb for air blow. SOLUTION: A nozzle 1 for air supply and exhaust is composed of an upper nozzle 2 and a lower nozzle 3. Gas in a cavity 13 in the injection of the molding material 11 is pushed out, passes through a mesh filter 5 which is provided in a vent hole of the lower nozzle 3, and passes through a hollow part of the upper nozzle 2, so as to be discharged into the atmosphere. When a trapezoidal thread 4 is turned and loosened and the upper nozzle 2 is made to recede, a gap is made between the upper nozzle 2 and lower nozzle 3. Thus, air introduced from the top of the upper nozzle 2 passes through the gap, and makes an air pressure act on a molded article 12, because. The air pressure makes a top force 9 and the molded article 12 separated from each other. COPYRIGHT: (C)2006,JPO&NCIPI
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