Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1997-11-07
2000-01-18
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
264 22, 2643287, 26432816, 264336, B29C 4556, B29C 4573
Patent
active
060155140
ABSTRACT:
An apparatus and method of producing molded plastic products provides the molded plastic products of high accuracy and with short molding cycle. A resin is placed in a cavity of a mold for forming the product therein. When the resin cools in the cavity of the mold to a temperature lower than the softening temperature of the resin, air gaps are forcibly formed between the resin and the plural cavity pieces, by slidably moving the cavity pieces so as to part the cavity pieces from the resin. The mechanism for forming the air gaps is included as part of the apparatus, and the method includes the step of forceably forming the air gaps.
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Heitbrink Jill L.
Ricoh & Company, Ltd.
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