| 摘要 |
PURPOSE:To enable injection in the direction of mold clamping, to lighten the weight of a rotary disk and to take out a runner easily by taking in and out a runner plate to and from the back of the rotary disk, to which a plurality of molds are fitted, and forming a hole for drawing out the runner. CONSTITUTION:A plurality of core molds 12 are mounted to a rotary disk 5, and holes 10 are shaped to the backs of the core molds. With a fixed disk 1, recessed sections 8 and holes 9 for extracting runners are each formed at the positions of injection and the extraction of the runners. The core mold 12 and a cavity mold 17 are mold-clamped, resin is injected into the cavity from an injector 14, the molds are opened, a runner plate 18 is retreated and housed in the recessed section 8 of the fixed disk 1, and the rotary disk 5 is rotated at 180 deg.. A molded shape 28 is gripped by a chucking device 25 for a mold release device 20 while an extracting machine is inserted from the hole 9 for extracting the runners and the runner 29 is drawn out. A novel molded shape is injection-molded in a molding section A at the same time. Injection and mold-release can be executed simultaneously. |
