本专利的加砂装置是使用相互列成多排的许多管子3将砂斗1中的砂子引入填充到砂箱2中,以制成实型铸型。组合成一体的泡沫塑料模4、5、6主要通过用夹紧装置8夹紧穿过中央大管子7的直浇口塑料模5的方法悬挂在这些管子3(由汽缸套制成)中间。管子3安装在中间箱10的孔板9上。当泡沫塑料模4、5、6夹紧固后,中间箱便可送到砂斗1和砂箱 Sanding device of this patent is to use a plurality of tubes 3 arranged in a plurality of rows to fill the sand box 2 with sand in the sand bucket 1 to make a real mold. The combined foam molds 4, 5, 6 are suspended in the middle of these tubes 3 (made of cylinder liner) mainly by means of clamping the sprue plastic mold 5 through the central large tube 7 with the clamping device 8. The pipe 3 is mounted on the orifice plate 9 of the intermediate tank 10. After the foam molds 4, 5 and 6 are fastened, the intermediate box can be sent to the sand hopper 1 and the flask