| 摘要 |
A mold for injection molding of a plastic bottle cap (10) has a cavity which defines the outside slope of the top (11) and skirt (13) of the cap. A core and a core insert fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. The cavity mold has an insert (97) which defines a notch in a locking bead (16) in the inside of the cap. A tapered stripper ring (43) below the cavity engages the base of the cap skirt. After the cap has been injected through a hot tip in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins. <IMAGE> |
