Injection molding machine having an injection molding unit with

Details Injection molding machine having an injection molding unit with Injection molding machine having an injection molding unit with

1988-05-11

1989-09-12

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, 425575, B29C 4556, B29C 4572

Patent

active

048655341

ABSTRACT:
An injection molding machine has an injection molding unit shiftable parallel to itself into a selected working position, dependent upon the location of the injection opening of the mold closing unit. The latter includes a stationary mold carrier having parts defining guide grooves oriented transversely to the injection axis. The injection molding unit has hydraulic power cylinders arranged symmetrically to the injection axis. Each hydraulic power cylinder has a piston rod on which the injection molding unit is supported. Each piston rod has a coupling terminus received in a respective guide groove for guiding the respective piston rod therein during motion of the injection molding unit between working positions. The coupling terminus of each piston rod is prevented by the respective guide groove from moving in a direction parallel to the longitudinal axis of the respective piston rod, whereby the piston rods are axially immobilized. Each hydraulic power cylinder has an axis lying in a single common plane which is inclined at an oblique angle to the horizontal. The transporting device for effecting the shifting motion of the injection molding unit comprises a platform which supports the piston rods via a support member.

REFERENCES:
patent: 3086244 (1963-04-01), Hehl
patent: 3806294 (1974-04-01), Hehl
patent: 3836301 (1974-09-01), Hehl
patent: 4090836 (1978-05-01), vonder Ohe et al.
patent: 4285659 (1981-08-01), Koike
Karl Morwald, "Einblick in die Konstruktion von Spritzgusswerkzeugen", Dec. 1965, pp. 17-20.

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