| 摘要 |
PURPOSE:To eliminate the trouble in the release stage after the completion of the injection of a molten resin, especially, the appearance inferiority and release irregularity generated in the corner of the inner hole part of a disk molded product. CONSTITUTION:After the injection of a molten resin into a molded product cavity C is completed, an ejector 24 is advanced before and after the cutting of a gate by a gate cutter 25 before mold opening is completed to be allowed to slightly protrude to the inerior of the molded product cavity to apply pressure to the peripheral edge of the inner hole part of a disk molded product P and air A is blown out of an air blow part 29 to be blown against the disk molded product P and the advance state of the ejector 24 is also held even at the start time of mold opening. |
