MOLD-MAKING DEVICE AND MOLD-MAKING METHOD

摘要

There are provided a device and a method allowing that the surface of an admixture in a stirring tank pressed by a packing device is smoothed with a simple structure whereby a casting mold is precisely molded. A mold-making device includes a stirring device 3 that has a stirring tank 1 and stirring blades 2 and stirs a particulate aggregate and an additive(s) to yield an admixture M, a forming mold 4 that molds the admixture M into a predetermined shape, and a packing device 5 that compresses a surface of the admixture M within the stirring tank 1 and packs it into the forming mold 4. The stirring blades 2 are configured in a lattice pattern by a plurality of horizontal members 21 and a plurality of vertical members 22. A distal end of a rotating drive shaft 23 is bonded to the top edge of the stirring blades 2, and the rotating drive shaft 23 is configured so that it is not immersed into the admixture M. Scrapers 29 for smoothing out the surface of the admixture M are provided on the bottom of the stirring blades 2.