Injection molding machine for a selective linear or central char

Details Injection molding machine for a selective linear or central char Injection molding machine for a selective linear or central char

1988-07-29

1989-09-05

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

2643288, 26432811, 425572, 425574, 425588, B29C 4507

Patent

active

048633682

ABSTRACT:
An injection molding machine has a mold closing unit arranged on a machine bed and adapted to selectively receive a first type of mold assembly having a central injection opening or a second type of mold assembly having a non-central injection opening; a platform mounted on the machine bed; and an injection molding unit supported on the platform. The injection molding unit includes a carrier block; a plasticizing cylinder received in the carrier block and a feed screw received in the plasticizing cylinder. The injection molding unit is pivotal by a drive into a first working position in which the injection molding unit cooperates with a mold assembly of the first type or into a second working position in which the injection molding unit cooperates with a mold assembly of the second type. The platform has two parallel-spaced side plates which flank the carrier block. Axially aligned, spaced pivot shafts are connected to respective side plates and the carrier block at opposite sides thereof for supporting the injection molding unit on the side plates for pivotal motion.

REFERENCES:
patent: 3464091 (1969-09-01), Bielfeldt
patent: 3577843 (1971-05-01), Kutik et al.
patent: 3806294 (1974-04-01), Hehl
patent: 4680002 (1987-07-01), Hehl
patent: 4708622 (1987-11-01), Hehl
"Schnecken-Spritzgiessmaschinen" Krauss-Maffei Munchen pp. 14-15.

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