Blow mold device

Details Blow mold device Blow mold device

2006-10-03

2006-10-03

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Plural female molds and means to shape parison at each...

C425S541000

Reexamination Certificate

active

07114945

ABSTRACT:
The shifting of the parting line between split molds due to mold clamping force is prevented. A blow mold device (11) wherein a pair of split molds forming a blow cavity (12) are a set of molds, and a plurality of such sets are attached in parallel to mold-attaching plates (15, 16) with a clearance defined between adjacent sets. One split mold (13) is attached by bolts (17) inserted in bolt holes (23) in the form of loose holes in the mold-attaching plate (15) in such a manner as to allow relative lateral shifting of the split mold (13) and mold-attaching plate (15). The other split mold (14) is fixedly attached to the mold-attaching plate (16) by locating pins (18) and bolts (17). A joint is installed that integrally connects the two split molds to their parting surface and that is composed of a taper pin (19) and a socket (21) for preventing the shifting of the parting line.

REFERENCES:
patent: 2298716 (1942-10-01), Moreland et al.
patent: 2353825 (1944-07-01), Hofmann
patent: 5332384 (1994-07-01), Abramat
patent: 5486103 (1996-01-01), Meiring et al.
patent: 8-229991 (1996-09-01), None

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