Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Forming plural articles
Patent
1984-09-28
1986-11-04
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Forming plural articles
2642978, 2643288, 2643289, 26432811, 26432816, 425443, 425444, 425552, 425556, 425572, 425574, 425588, 425592, 425DIG5, 425DIG51, B29C 4503, B29C 4527
Patent
active
046209581
ABSTRACT:
In order to mold a plurality of articles (20--20) which are disposed in a line, a molding arrangement in an apparatus (60) includes a plurality of cavities (109--109) which are spaced equidistantly from an infeed sprue (131). A primary network of a distribution system (50) through which an injection molding material is flowed from the infeed sprue to cavity gates (151--151) is disposed substantially along a vertical plane (150). Afterwards the injection molding material which has been flowed from the primary network and along a secondary network into the cavities is solidified. Then the primary network is exposed by causing wedge blocks (79--79) to be disengaged from each other and from an adjacent stationary platen (62) and cavity plate (90) by movement of each block in a direction transverse to the plane. This movement together with that between the cavity plate and the stationary platen and between the cavity plate and a core plate (102) in a direction parallel to the plane allows the solidified injection molding material in the distribution system and the articles to be removed from the apparatus after each molding cycle.
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AT&T - Technologies, Inc.
Lowe James
Somers E. W.
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