Static molds – Providing substitution of alternatively used parts – Part having intelligence
Patent
1979-12-26
1981-03-10
Flint, Jr., J. Howard
Static molds
Providing substitution of alternatively used parts
Part having intelligence
425169, 425182, 425190, 425525, 425542, B29C 100, B29F 100
Patent
active
042549337
ABSTRACT:
A mold for injection molding of plastic articles which are automatically numbered or coded without repeating the combinations. In accordance with the invention one half of the mold comprises concentric rings rotatable about a reference axis perpendicular to the mold surface, the rings forming portions of the mold cavity in equally spaced positions about said reference axis, each ring presenting in the interior of each cavity a marking that is different from those that it presents to the other cavities, means for rotating one of said rings by increments so that its markings are presented, one by one, to said cavities, and for rotating each other ring by an increment each time the previous ring completes a revolution, in a manner similar to a mechanical counter, and actuating means to actuate said rotating means by an increment for each cycle of separation and approximation of said mold halves.
REFERENCES:
patent: 3354509 (1967-11-01), Ammordson
patent: 4036926 (1977-07-01), Chang
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