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US 4,273,567 AGranted
Method and apparatus for forming glass parisons
AssigneeCorning Glass Works
InventorsJohn J. Scholl, Warren D. Staley
Life of this patent
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AssigneeCorning Glass Works
InventorsJohn J. Scholl, Warren D. Staley
Estimating the term…
A single mold and plunger set is programmed to form a parison within each of a plurality of neck rings which are continuously successively presented along a linear path. The mold, which is positioned below the linear path of said continuously successively presented neck rings, receives a charge of molten glass and accelerates in a direction parallel to said linear path to a speed commensurate with that of the continuously presented neck rings, and upon tracking with a particular neck ring, such mold moves vertically into engagement with a bottom portion thereof. Simultaneously, the plunger, which is positioned above said linear path, accelerates in a direction parallel with the movement of said continuously presented neck rings to a speed commensurate therewith, and upon tracking said particular neck ring moves vertically into engagement with an upper portion thereof so as to press form the charge of molten glass deposited within the mold into a shape determined by the shape of the parison mold and plunger. The mold and plunger then retract from said particular neck ring, which retains the parison therein, and return to the starting position to repeat the cycle so that a parison may be press formed in the next succeeding neck ring.
A method of forming glass parisons with a single mold and plunger set for retention by a plurality of successively presented retention means, which comprises, continuously moving a plurality of retention means along a predetermined path, positioning a mold in an initial position vertically below said predetermined path, delivering a charge of molten glass to said mold, moving said mold in the direction of movement of said retention means at the same speed as that of said retention means so as to track vertically below one of said retention means, moving said mold vertically into operable engagement with said one retention means while continuing to track with the same, positioning a plunger vertically above said predetermined path for movement in the direction of said path, moving said plunger in the direction of movement of said retention means at the same speed as that of said retention means so as to track vertically above said one retention means simultaneously with the tracking of the mold with said retention means, moving said plunger vertically into operable pressing engagement with said one retention means while continuing to track with the same, pressing said charge of molten glass carried by said mold into a parison while said one retention means, said mold and said plunger move simultaneously along said predetermined path, vertically moving said mold and said plunger from operable engagement with said one retention means while simultaneously tracking with the same, retaining said newly press-formed parison with said retention means, moving said mold and plunger in a return direction opposite to the direction of movement of said retention means along said path to relative starting positions, and repeating the pressing cycle of said mold and plunger set with the next presented retention means.
A method of repeatedly press forming a plurality of separate similar glass articles through the use of a single mold and plunger set cooperating with a plurality of continuously successively presented neck ring mechanisms which carry the newly formed articles away from the forming area, which comprises, continuously moving a plurality of neck ring mechanisms horizontally along a predetermined linear path, providing a mold vertically below said predetermined linear path, providing a plunger vertically above said predetermined linear path, moving said mold solely within a cyclical path lying within a vertical plane passing through said predetermined linear path, moving said plunger solely within a cyclical path also lying within said vertical plane passing through said predetermined linear path, positioning said cyclical paths within said vertical plane such that a portion of said mold cyclical path and a portion of said plunger cyclical path are virtually common with a portion of said predetermined linear path, supplying a charge of molten glass to said mold, moving said mold containing the charge of molten glass and said plunger through the common portion of said cyclical paths synchronously with a neck ring mechanism moving along said predetermined linear path and press forming said charge of molten glass into a glass article during such synchronous movement along said common portion of said paths, retracting said mold and plunger from said common portion and retaining the newly formed glass article in said neck ring mechanism for movement therewith away from said common portion, and continuing the movement of said mold and said plunger through their respective cyclical paths so as to press form a glass article in the next presented neck ring assembly horizontally moving along said predetermined linear path.
A method of repeatedly forming glass articles with a single mold and plunger set, which comprises, continuously moving a plurality of neck ring assemblies horizontally along a predetermined linear path, positioning a mold below said predetermined path, positioning a plunger above said predetermined path, delivering a charge of molten glass to said mold while in a loading position vertically spaced apart from said predetermined path, moving said mold horizontally and upwardly into operable engagement with one of said neck ring assemblies moving along said predetermined path, moving said plunger horizontally and downwardly into pressing engagement with said one neck ring assembly, synchronously moving said mold, plunger and neck ring along said predetermined linear path and press forming a glass article from said charge of molten glass, retracting said mold downwardly away from said neck ring and moving said mold back to said loading position, retracting said plunger upwardly away from said neck ring and moving it horizontally back to a starting position, retaining said article within said neck ring assembly and moving the same therewith along said path, and again delivering a charge of molten glass to the mold and moving the mold and plunger into operable engagement with the next presented neck ring assembly for press forming a glass article therein.
Apparatus for press forming glass articles which comprises, a plurality of successively presented means continuously moving horizontally along a predetermined linear path for retaining and transporting a newly formed glass article, mold mounting means including a mold positioned below said predetermined path, plunger mounting means including a plunger positioned above said predetermined path, means for moving said mold in a cyclical path lying within a vertical plane passing through said predetermined linear path, means for moving said plunger in a cyclical path lying within said vertical plane passing through said predetermined linear path;
Apparatus for forming glass articles which comprises, means for continuously moving a plurality of neck ring assemblies horizontally along a predetermined linear path, a single mold positioned below said linear path, a single plunger positioned above said linear path, means for moving said mold and said plunger into operable pressing engagement with each neck ring assembly successively presented along said path for press forming a glass article therewithin during continuous movement along said path from a charge of molten glass delivered to said mold, and said means for moving said mold and said plunger including cam actuated means programming the vertical and horizontal movement of said mold and said plunger for operable synchronous tracking engagement with each successively presented continuously moving neck ring assembly.
Dependencies are inferred from the claim text.