Demolding device for injection molding parts with sipes

摘要

An apparatus for releasing a workpiece (42, 142) with an undercut in injection molding, the apparatus comprising: a skid (6, 106) mounted to be movable with respect to a movable part (41, 141) of a mold injection, and a head (7, 107) mounted so that it can move relative to the movable portion (41, 141), characterized in that the head (7, 107) has a projection (130) in a position closed injection mold, contacts a stop (9, 109) longitudinally fixed relative to the movable portion (41, 141), and that the stop (109) is formed by a wedge element (110) fixed relative the movable part (41, 141) or integrated with the moveable part (41, 141).