Patent ID: 8267684
Filing Date: 2012-09-18
Classification: B29C

Abstract:
1. A mold comprising: a core insert; a core plate receiving the core insert; a cavity insert; a cavity plate receiving the cavity insert, the cavity insert and the core insert cooperatively defining a molding cavity; an ejection mechanism configured to eject the core insert, comprising: a top plate comprising a first fastening hole; a bottom plate comprising a first through hole aligned with the first fastening hole and at least two first locating holes parallel with the first through hole; an ejection rod having a first end received in the first through hole, and an opposing second end contacting the core insert, wherein the first end defining a second fastening hole open to the first fastening hole; a gasket disposed between the top plate and the bottom plate, wherein the gasket defines a third fastening hole aligned with the first fastening hole, and a second locating hole aligned with one of the at least two first locating holes; a fastener screwed into the first fastening hole, the third fastening hole and the second fastening hole; and an elongated locating piece screwed into one of the at least two first locating holes and the second locating hole for tilting the ejection rod because of different engagement tolerance between the locating piece and different first locating holes, thereby choosing the best cooperation between the core insert and the cavity insert for better moldings.