Closing unit for an injection molding machine with stack mold

Details Closing unit for an injection molding machine with stack mold Closing unit for an injection molding machine with stack mold

2007-04-04

2009-02-10

Mackey, James (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

C425S183000, C425S190000, C425S556000, C425S576000

Reexamination Certificate

active

07488167

ABSTRACT:
A closing unit for an injection molding machine includes first and second platens, of which at least one is movable, and an intermediate plate disposed between the first and second platens. A molding tool is disposed between one of the first and second platens and the intermediate plate. In order to allow operation of the closing unit with intermediate plate also as a single-face mold for molding a single-component product, the molding operation between the other one of the first and second platens and the intermediate plate is disabled by a dummy tool or by securely fixing the intermediate plate to the other one of the first and second platens. Removal of an end product from the molding tool is realized by at least one ejector which is arranged in or on the intermediate plate.

REFERENCES:
patent: 4005966 (1977-02-01), Nutting
patent: 5069615 (1991-12-01), Schad et al.
patent: 6139305 (2000-10-01), Nesch
patent: 37 16 796 (1987-11-01), None
patent: 101 52 394 (2003-05-01), None
patent: 0 475 243 (1992-03-01), None
patent: 0 895 848 (2003-01-01), None
patent: 1 119 449 (2003-02-01), None
patent: WO 97/48540 (1997-12-01), None

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