Patent ID: 6039558
Filing Date: 2000-03-21
Classification: B29C,Y10S

Abstract:
A mold for injection molding of plastic products, the mold comprising:a fixing plate including a first cavity-forming portion forming a part of a cavity into which a melted plastic is injected so as to be molded;a moving plate movably disposed on the fixing plate so as to be movable toward and away from the fixing plate and including a second cavity-forming portion cooperating with the first cavity-forming portion so as to form the cavity therewith;a plurality of molding pins having prominence-depression portions positionable in the cavity for forming undercut portions in a product molded in the cavity, the molding pins slidably passing through the second cavity-forming portion obliquely thereto; andan eject plate movable relative to the fixing plate and the moving plate and connected to the molding pin so as to slidably move the obliquely arranged molding pins relative to the second cavity-forming portion such that the prominence-depression portions are separated from the respective undercut portions of the molded product;wherein two of the molding pins cross over one another and have their respective prominence-depression portions facing one another with no part of the cavity-facing portions being situated therebetween, to form on the molded product a partition wall having undercut portions on opposite sides thereof.