| 摘要 |
PURPOSE:To easily mold a resin molded product having an extremely thin package and to facilitate gate break. CONSTITUTION:A pot 10 and a cavity 12 are allowed to communicate with each other by a resin passage 24 and a molten resin is sent to the cavity 12 under pressure from the pot 1 through the resin passage 24 to be subjected to resin molding. Gate runner pins 14a, 14b having flat end surfaces are arranged at the gate end positions of the cavity 12 and retracted at the time of the filling of the cavity 12 with the resin to open the resin passage and, after the cavity 12 is filled with the resin, the gate runner pins 14a, 14b are allowed to protrude and the end surfaces thereof are brought into contact with a product to be molded to close the resin passage 24 to perform resin molding. |
