| 摘要 |
PROBLEM TO BE SOLVED: To provide a core molding method and a core molding device where, by a blow head capable of performing single air blowing or the like, the interference of air or the like is prevented while solving the insufficiency of its filling to respective head parts, thus a plurality of cores with uniform quality can be efficiently molded. SOLUTION: Sand in respective hopper parts of a sand hopper is fed into head members divided into two or more in a blow head at a sand feeding position. The blow head is moved to a sand blowing position, and, by air in an air feeding means provided correspondingly to the respective head parts at the position, the sand in the respective head parts is blown into a plurality of core cavities formed by upper and lower dies, respectively, so as to be filled therein. Thereafter, firing is performed, so as to mold a plurality of cores. The blowing of the air into the respective head parts is performed with a prescribed time difference in such a manner that it is not simultaneously blown into a plurality of the head parts, and further, the firing is performed correspondingly to the blowing and exhausting of the air to the respective head parts. COPYRIGHT: (C)2009,JPO&INPIT
|
