Apparatus for the preparation of hollow bodies from a thermoplas

Details Apparatus for the preparation of hollow bodies from a thermoplas Apparatus for the preparation of hollow bodies from a thermoplas

1985-07-30

1986-08-19

Hoag, W. E.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to close or lock blow mold

425589, 425408, B29C 4930

Patent

active

046067175

ABSTRACT:
An apparatus for the production of hollow bodies by blow molding is made up of a locking unit mounted on a bottom stand including a first and second mold support element, each carrying one half of a mold. The two mold support elements are kinematically coupled together by a synchronizing mechanism and fastened to guide spars, with the second mold support elements being displaceable parallel to the first mold support element.
In order to prevent the deflection of the guide spars under the effect of the locking pressure leading to the gaping apart of the mold support elements, the locking unit includes a rigid support frame which relieves the bending stress on the guide spars. The guide spars carrying the locking unit are supported on the bottom stand in an axially displaceable manner.

REFERENCES:
patent: 3964852 (1976-06-01), Marfiewiez
patent: 4304543 (1981-12-01), Rolniezak et al.
patent: 4432720 (1984-02-01), Watt et al.
patent: 4560341 (1985-12-01), Hafele
Kunststoff-Verarbeitung im Gespraech 3 Blasformen, 1973, BASF.
Verarbeitungsmaschinen und-geraete, Kunststoffe 70 (1980) II, p. 772.
"Gleitlager", Schmid et al, Springer-Verlag, 1953.

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