Plastic and nonmetallic article shaping or treating: processes – Forming sound grooves in records – Die pressing disk type records
Patent
1985-08-02
1986-04-08
Flint, Jr., J. Howard
Plastic and nonmetallic article shaping or treating: processes
Forming sound grooves in records
Die pressing disk type records
425436R, 425810, 425502, 249219R, B29D 1700
Patent
active
045811881
ABSTRACT:
A transfer apparatus is provided for advancing a molded article from the molding station to the flash trimming station of an automated molding press. The transfer apparatus is comprised of a support member having a retainer and an expandable clamp member. The expandable clamp member is mounted within the retainer. The expandable clamp member, in its fully expanded position, has an interior size sufficient to hold a molded article by flash formed about the outer edge of the molded article. In the contracted position, the clamp has an inner edge larger than the size of the flash formed about the outer edge of the article. The transfer apparatus is pivotally mounted to oscillate between the molding station and the flash trimming station. In use, the transfer apparatus is positioned with the clamp member in the fully expanded position between the molds of the molding station so as to form a molding surface against which the flash can be molded in a uniform configuration. After the article is molded, the transfer apparatus, with the clamp member still in the expanded position, is oscillated to a position which is in alignment with the flash trimming station. The clamp member is then contracted which releases the flash and, as a result, the article. The transfer apparatus then returns to the molding station for the next molding cycle.
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Flint, Jr. J. Howard
Morris Birgit E.
RCA Corporation
Sites Edward J.
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