| 摘要 |
PURPOSE:To make a space of the whole of a mold small and prevent missetting of an intermediate mold by making guide pins or guide recessed sections on recessed and projected surface sections of a first mold and recessed and projected surface sections on the second mold side of a third mold all in same shapes. CONSTITUTION:Guide pins 24a - 24d and guide recessed sections 30a - 30d forming the reference are overlapped in the state of separating a fixed mold 10 and a movable mold 12 and an intermediate mold 14 is disposed between said pins and sections, and then the movable side mold 12 is moved toward the fixed mold 10. The guide pins and guide recessed sections provided on the respective recessed and projected surface sections of the mold facing each other are fitted and clamped simultaneously to carry out press processing. After that, the movable mold 12 is moved backward to release the fitted state of the guide pins and guide recessed sections and enable the intermediate mold 14 to move backward between the fixed mold 10 and the movable mold 12. After the intermediate mold is moved backward, the fixed mold and the movable mold are mold clamped and injection molding of molten synthetic resin is carried out between a couple of press processed sheets 32 to be molded. |
