Patent ID: 8038435
Filing Date: 2011-10-18
Classification: B29C,B29L,Y10S

Abstract:
1. A venting device for venting a cavity of an injection mold via a venting opening of the injection mold which cavity can be filled with an injection molding material, having a housing which has a through-opening and is designed and intended for an arrangement on an injection mold in such a way that air which is present in the cavity and which escapes from a venting opening of the injection mold when injection molding material is introduced into the cavity can exhaust through the through-opening of the housing into an exterior space surrounding the injection mold, a valve pin extending longitudinally along a direction of extent and being mounted in the housing movably along its direction of extent, wherein the valve pin is designed for being moved from a venting position, in which the valve pin is arranged in the through-opening in such a way that air escaping from the venting opening of the injection mold can exhaust into the exterior space along the valve pin through the through-opening, in the direction of the cavity into a first cleaning position, with injection molding material gotten into the through-opening being taken along by the valve pin and being transported out of the through-opening, wherein the valve pin is designed for being moved from the first cleaning position away from the cavity into a second cleaning position, with injection molding material sticking to the valve pin being wiped off the valve pin by a wiping element provided on the housing.