Blow molding apparatus for the production of a hollow body of th

Details Blow molding apparatus for the production of a hollow body of th Blow molding apparatus for the production of a hollow body of th

1993-09-30

1994-11-29

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Mold motion or position control

4254512, 425541, B29C 4956

Patent

active

053684621

ABSTRACT:
An apparatus for the production of hollow bodies from thermoplastic material by blow molding using a blow molding mold which includes at least first and second mold portions to enclose a generally tubular extruded preform which is expanded within the mold under the effect of an increased internal pressure within the preform. To provide for asymmetric closing and/or opening movements of the mold portions relative to the preform, the blow molding mold is displaced as an entirety parallel to the direction of the opening and/or closing movements of the mold portions, more especially during the mold closing and/or opening procedure, so that an additional motion is superimposed on the movements of the mold portions.

REFERENCES:
patent: 3325860 (1967-06-01), Hansen
patent: 3749541 (1973-07-01), Mehnert
patent: 3767341 (1973-10-01), Siebelhoff et al.
patent: 3883286 (1975-05-01), Kinslow, Jr. et al.
patent: 4150080 (1979-04-01), Hagen
patent: 4285658 (1981-08-01), Bohart et al.
patent: 4409161 (1983-10-01), Harry et al.
Search Report of EP 91 11 6386 (20 Jan. 1992) 2 pp.

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