| 摘要 |
PURPOSE:To eliminate the need far decreasing injection speed or stopping injection during the injection in the case of pinching of parison and enable high speed injection. CONSTITUTION:A pair of upper and lower parison pinching mechanisms are disposed between an injection die 14 and a mold placed under said die and a parison heating heater 34 is fixed to the upper pinching mechanism 18, while a lower pinching mechanism 20 is connected to a travelling frame for taking out products so as to be inserted into and drawn out of the lower part of the die 14. After the completion of shot, the lower end of next injection parison is sealed just below the die, while the periphery of flash of parison from the die 14 is heated. |
