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    • 2. 发明公开
    • A MOLD STACK FOR A PREFORM
    • PULLER对于窗体堆栈的预成形件的预制件及形态和堆栈
    • EP2323831A1
    • 2011-05-25
    • EP09806257.3
    • 2009-07-14
    • Husky Injection Molding Systems Ltd.
    • MCCREADY, Derek, Robertson
    • B29C49/70B29C49/48
    • B29C45/44B29C45/2618B29C45/33B29C49/06B29K2105/253
    • According to embodiments of the present invention, there is provided a stripper assembly and a mold stack incorporating same. More specifically, there is provided the stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container. The stripper assembly (212) comprises a stripper plate (214) connectable, in use, to a stripper plate actuator; neck rings (220) configured to cooperate to define a portion a neck region (226) of the preform (210); a stripper ring (230) configured to define at least a portion of a top sealing surface of the neck region (226) of the preform (210); the stripper plate (214) being configured to actuate the neck rings (220) and the stripper ring (230), in unison, along substantially the whole length of a complete ejection path, which is substantially parallel to a longitudinal axis of the mold stack (202); and wherein the neck rings (220) are configured for movement in a direction substantially perpendicular to the longitudinal axis of the mold stack, over at a portion of the complete ejection path, whereby at a completion of the complete ejection path, the stripper ring (230) and the neck rings (220) render the preform (210) removable from the mold stack (202).