摘要:
A glassware forming machine includes a machine section box having a cooling air outlet opening, at least one mold-carrying arm disposed above the section box and movable between mold-open and mold-closed positions, and means for delivering cooling air from the outlet opening to the mold arms. The machine in accordance with this aspect of the disclosure is characterized in that the means for delivering cooling air includes a valve plate mounted on the section box to pivot around an axis and having a valve plate opening that registers with the outlet opening in the section box. A pressure plate is mounted on the mold-carrying arm overlying the valve plate and has a pressure plate opening that registers with the valve plate opening. A coupling between the valve plate and the pressure plate pivots the valve plate on the section box as a function of motion of the mold-carrying arm between the mold-open and mold-closed positions such that cooling air is continuously fed to the mold-carrying arm through the valve plate and the pressure plate. The coupling preferably is a lost motion coupling such that motion of the mold arm is not imparted to the valve plate during initial motion in either the opening or the closing direction.
摘要:
A parison mold assembly for a press-and-blow glassware forming machine includes a neck ring for molding a finish portion of a parison, a parison mold for molding a body portion of the parison, and a plunger for insertion through the neck ring into the parison mold for pressing a hot glass gob against inner surfaces of the neck ring and the parison mold. The plunger has an outer surface of revolution around a central axis, including a first portion disposed within the neck ring when the plunger is fully inserted through the neck ring into the parison mold, a second portion spaced from the first portion, and a transition third portion extending between the first and second portions.
摘要:
A glassware forming machine includes a machine section box having a cooling air outlet opening, at least one mold-carrying arm disposed above the section box and movable between mold-open and mold-closed positions, and means for delivering cooling air from the outlet opening to the mold arms. The machine in accordance with this aspect of the disclosure is characterized in that the means for delivering cooling air includes a valve plate mounted on the section box to pivot around an axis and having a valve plate opening that registers with the outlet opening in the section box. A pressure plate is mounted on the mold-carrying arm overlying the valve plate and has a pressure plate opening that registers with the valve plate opening. A coupling between the valve plate and the pressure plate pivots the valve plate on the section box as a function of motion of the mold-carrying arm between the mold-open and mold-closed positions such that cooling air is continuously fed to the mold-carrying arm through the valve plate and the pressure plate. The coupling preferably is a lost motion coupling such that motion of the mold arm is not imparted to the valve plate during initial motion in either the opening or the closing direction.
摘要:
A parison mold assembly for a press-and-blow glassware forming machine includes a neck ring for molding a finish portion of a parison, a parison mold for molding a body portion of the parison, and a plunger for insertion through the neck ring into the parison mold for pressing a hot glass gob against inner surfaces of the neck ring and the parison mold. The plunger has an outer surface of revolution around a central axis, including a first portion disposed within the neck ring when the plunger is fully inserted through the neck ring into the parison mold, a second portion spaced from the first portion, and a transition third portion extending between the first and second portions.