Die assembly for molding of glass element

Details Die assembly for molding of glass element Die assembly for molding of glass element

2011-07-26

2011-07-26

Daniels, Matthew J (Department: 1741)

Glass manufacturing

Press molding machine

With means varying plunger pressure during pressing

C065S305000, C065S323000, C264S002300

Reexamination Certificate

active

07984626

ABSTRACT:
In the initial stage of die-opening operation when an upper core3moves upward together with an upper die plate1, an upper cavity die2is biased downwardly by an elastic member10so as to press the lower surface of the upper cavity die2against the upper surface of a lower cavity die6and keep their contact, thereby forcing a molded glass element4to remain on a lower core5by utilizing the difference in outside diameter between the lower core5and the upper core3. This makes it possible to securely release the molded glass element4from the upper core3and leave the molded product on the lower core5upon die opening, enabling smooth removal and automated transportation of the molded product.

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