Apparatus for molding foam cushion packaging

摘要

An apparatus is described for use in a urethane foam molding process to make a molded packing that is employed in the packaging of an article. A generally air tight housing is placed in cooperative relationship with a box in whose chamber the molded packing is to be made with one housing port located for air flow communication with the chamber and another housing port being located for air flow communication with ambient air. A pair of motor driven air blowers are mounted inside the housing with each air blower operatively positioned at a housing port. When one air blower is energized it causes the evacuation of air from the chamber of the box through one port to draw and hold a polyethylene sheet into the cavities of the chamber and of a mold form located therein. The air is exhausted past the other air blower and port. When the other air blower is energized, air flow through the ports is reversed so as to blow air into the box chamber for the release of the molded packing.