Closing unit for an injection molding machine

Details Closing unit for an injection molding machine Closing unit for an injection molding machine

1992-05-14

1994-11-29

Mackey, James

Plastic article or earthenware shaping or treating: apparatus

With indicator, signal, recorder, illuminator, or inspection...

For determining, observing, or recording position of...

4254512, 4254519, 425590, 425595, B29C 4567

Patent

active

053684630

ABSTRACT:
A closing unit for injection mold machines is disclosed which generally includes two end plates, guide crosspieces connecting the end plates at a distance from one another, an intermediate plate which is parallel to the end plates and displaceable longitudinally relative to the guide crosspieces and moving cylinders which abut an end plate and act at the intermediate plate via their piston rods. The moving cylinders also displace the intermediate plate along the guide crosspiece in the closing and opening direction to vary its distance from the other end plate. The intermediate plate and the other end plate form a gripping plate for the two mold halves of a form tool which is brought into its closing position by the two gripping plates. Increased closing force may be applied to the form tool at a central die via a pressure cushion insertable between one end plate and the intermediate plate.

REFERENCES:
patent: 3270372 (1966-09-01), Hesse
patent: 3590436 (1971-07-01), Akesson et al.
patent: 3697212 (1972-10-01), Herbst
patent: 3716323 (1973-02-01), Classen
patent: 4201533 (1980-05-01), Holzschuh
patent: 4636167 (1987-01-01), Shibata
patent: 5018961 (1991-05-01), Miese et al.

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