Simultaneous injection molding and patterning apparatus

Details Simultaneous injection molding and patterning apparatus Simultaneous injection molding and patterning apparatus

1995-06-19

1997-10-14

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to form or reshape preform

264265, 425122, 425127, 4251291, B29C 4514

Patent

active

056769814

ABSTRACT:
A heating device used for a simultaneous injection molding and patterning method such that: a decorative pattern sheet is disposed between a pair of mutually opposed molds (mold A formed with a vent and mold B formed with an injection gate); the decorative pattern sheet is heated and softened by the heating device; the decorative pattern sheet is brought into tight contact with a cavity surface of mold A on the basis of a pressure difference caused by exhaustion of mold A through the vent; and a molten resin is injected into the molds through the injection gate to mold a product patterned on the basis of the decorative pattern sheet. The heating device includes: a heating body for supplying heat to the decorative pattern sheet; and heating body moving members for moving the heating body between a heating position at which the heating body is confronted with the decorative pattern sheet to heat and soften the decorative pattern sheet and a non-heating position at which the heating body is moved away from a space between a pair of the molds. The heating position of a heating surface of the heating body is not parallel to the non-heating position of the heating surface of the heating body. Since the positional relationship of the heating surface of the heating body is non-parallel at the heating positions, it is possible to markedly reduce the installation space of the apparatus.

REFERENCES:
patent: 3801244 (1974-04-01), Eisenberg
patent: 4545752 (1985-10-01), Hanamoto et al.
patent: 4676938 (1987-06-01), Karklin et al.
patent: 4994224 (1991-02-01), Itoh et al.
patent: 5415536 (1995-05-01), Ohno

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