| 摘要 |
PURPOSE:To miniaturize and simplify the above injection molding die, and to reduce consumed energy by realizing the opening and driving of the split- cavity mold of a first cavity mold by transmitting relative mold-opening driving force in the mold opening direction of a second cavity mold. CONSTITUTION:The injection molding process of a parison 10 is completed, and a second cavity mold 40 is lowered and driven. A first cavity mold 30 is moved and energized upward at all times to a second cavity 40 by the energizing force of a coil spring 50 at that time. Since the moving and energizing force F of the coil spring 50 is inclined along the axial direction of an inclined guide hole 36 and an inclined guide shaft 46 at that time, moving and energizing force F1, F2 in the vertical upward direction and the horizontal direction are generated as the components of force. The first cavity mold 30 works so as not to vary a position in the upward direction by the vertical moving energizing force F1, moving energizing force-component F2 in the horizontal direction works to the first cavity 30 by the lowering and driving of the second cavity mold 40, and force moving in the left and the right directions works to the first cavity 30 of a split-cavity mold. |
