| 摘要 |
PURPOSE:To avoid unfavorable influence to a molded product by preventing the generation of bending by repulsive force of pressure at the central part of a mold, by supporting the total length of the mold by receiving molding pressure acting on the mold at lateral oblique surfaces of the grooves of a fixed platen and a bottom plate by the mutual inlay of an upper plate and the bottom plate with the mold. CONSTITUTION:When pressurized oil is supplied to the other side of a hydraulic cylinder 32, fixing bolts 33 are fallen and cavity half-parts 24, 25 are fallen while successively performing mold closing according to the movement of the cam follower 29 which is received in a guide groove 30 and guided therealong. When the falling of said cavity half-parts 24, 25 is succeeded further, the cavity half- parts 24, 25 are contacted to be brought to a mold closed state and a falling peripheral oblique surface 40 is inlaid with the oblique surface 39 of the groove provided to the upper surface of a bottom plate 21 and, subsequently, an upper end peripheral oblique surface 38 is inlaid with the oblique surface 37 of the groove provided to the lower surface of an upper plate 26 and a pair of cavity half-parts 24, 25 are brought to a mechanically fixed state and sufficiently resist against molding pressure on and after to enable molding. |
