Clamping apparatus for molding machine

Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to close mold

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Details

4254501, 4254519, 425595, B29C 4564

Patent

active

051888505

ABSTRACT:
A clamping apparatus of molding machine including a base; a fixed board disposed on the base; a movable board movable relative to the fixed board; a plurality of mold clamping cylinders disposed in predetermined positions of the fixed board, the mold clamping cylinders each having a mold clamping piston with a tie bar reception hole and a tie bar connection device disposed on the mold clamping piston; a plurality of tie bars with a thread at their one end, the tie bars being disposed in correspondence with the mold clamping cylinders on the movable board; a plurality of mold opening/closing cylinders for moving the movable board; and a differential circuit connected between a front oil chamber and a rear oil chamber of each of the plurality of mold clamping cylinder.

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patent: 4865537 (1989-09-01), Shima
patent: 4874309 (1989-10-01), Kushibe et al.
patent: 4948358 (1990-08-01), Kushibe et al.
patent: 4984980 (1991-01-01), Ueno
patent: 5017120 (1991-05-01), Holzinger et al.

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