Apparatus for controlled processing of blown plastic articles
OwnerEmery I. Valyiinventor
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Abstract
A method and apparatus for forming hollow objects of moldable organic plastic material by providing a parison on a blow core, locating said blow core bearing said parison in a blow mold, expanding said parison within said blow mold, separating said expanded parison from said core while the parison remains in said blow mold and transferring said expanded parison from said blow core within said blow mold to another core and/or blow mold. In a preferred embodiment, a plurality of cores and molds are employed to provide an extended cooling sequence for the final article.
Claims35
An apparatus for forming objects of moldable organic plastic material which comprises:
- at least one core;
- means cooperating with said at least one core and aligned therewith for providing a parison thereon;
- a first mold spaced from said at least one core and engageable with said parison having a cavity therein;
- means associated with said at least one core and said first mold for bringing together and for separating said core and said first mold;
- means operatively connected to and carried by said at least one core for expanding said parison away from said core to form a hollow object within said first mold;
- at least one second mold in spaced relationship to said first mold for adjusting the temperature of said hollow object;
- and means associated with at least one core for transferring said hollow object from said first mold to said second mold and retaining same in said second mold free from said core for adjusting the temperature of said hollow object.
Dependencies are inferred from the claim text.