| 摘要 |
PURPOSE: A ventilating device for a mold is provided to prevent the pullout in the de-molding by fixing the blocking device of a ventilation bore using a barb. CONSTITUTION: A mold blocking member(10) comprises a pipe-shaped hollow body(20). The pipe-shaped hollow body has a first end and a second end part(16). The outside cap of the first end part is bigger than the diameter of the pipe-shaped hollow body. The cap has at least one or more undercuts forming apertures(3,4). The opening is adjacently arranged to the mold surface. |
