To supply a raw material from a die opening into a mold cavity accurately and quantitatively preventing an upper punch and a filter from contacting the upper surface of a die by supplying the raw material by a quantitative supply means while a raw material supply nozzle is in the middle of the opening of the mold cavity.

A die 1 is lifted to form a mold cavity 5, and a supply head 10 is moved to the middle of the die 1 by an air cylinder of a positioning device 9. When a nozzle 6 has reached the middle of an opening, the operation of a volume type pump 12 is started. The digital timer of a controller 13 is started simultaneously with the operation of the pump, and the pump is stopped after the elapse of a prescribed time. The air cylinder is brought back at the same time of the stop of the pump so that slurry adhered to the end of the nozzle 6 is scraped off into the mold cavity 5 and the nozzle 6 is closed. An upper punch equipped with a liquid discharge opening and a filter is brought down to pressurize in a magnetic field to obtain a molding.