An Injection Mold for removing '?'-Shaped Undercut

摘要

An injection mold for removing Ý‹-shaped undercut is provided to remove Ý‹-shaped undercut because the third slide core moves firstly then the first and the second slide cores move when the slide core moves. An injection mold for removing Ý‹-shaped undercut comprises an upper core which is coupled with a fastened mold plate, a slide core which is coupled with the fastened mold plate, and an outer core which contacts with the slide core and forms the undercut. The slide core comprises a pair of first slide cores(111,112), second slide cores(121,122) which are placed in one end of the first slide core, and third Slide cores which are placed in the corner where the first slide core and the second slide core meet.