| 摘要 |
PROBLEM TO BE SOLVED: To provide a definite back pressure and to obtain a good molded article by an apparatus wherein a slide member for pressing a synthetic resin in each cavity from the back and a cylinder room storing a pressure medium are provided in a pressure medium storing mold and each cylinder room is communicated with each other and the pressure medium storing mold is moved by a moving means. SOLUTION: A slide member 11 is inserted in each cavity 9 to press a synthetic resin filled on its apex and another end is connected with a piston member 14 in a cylinder room 13 in a pressure medium storing mold 12. In addition, a pressure medium 15 is stored in the cylinder room 13 and the cylinder rooms 13 are communicated with each other by passages 16 to form a storing part 17. The pressure medium storing mold 12 is connected with a piston rod 19 of a hydraulic apparatus and after the synthetic resin is filled in the cavity 10, the pressure medium storing mold 12 is moved to the mold 9 side to compress the synthetic resin. In addition, by motion of the pressure medium stored in the storing part 17, the dimension of movement of each slide member 11 is independently adjusted and at the same time, a definite pressing force is applied on the synthetic resin. |
