Blow molding machine using reheat method for producing hollow pl

Details Blow molding machine using reheat method for producing hollow pl Blow molding machine using reheat method for producing hollow pl

1996-12-18

1998-07-21

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

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

With heating or cooling means

264535, 264538, 425534, B29L 4964

Patent

active

057832323

ABSTRACT:
To be able to guide the parisons in a reheat type blow molding machine having separate heat and blow paths along the path where they are heated up to blow temperature, i.e., in narrowly spaced relationship past the heating devices, with the spacing being independent of the pitch of the mold cavities on the blow path, and to be able to blow a plurality of parisons on the blow path at the same time, the present device includes a straight heating path (1) and at least one straight blow path (7), and that the transportation device (2) for receiving parisons in close pitch comprises arms (4) which laterally project in such a manner that the deflection radius (r) of the transportation device (2) of the heating path (1) is smaller than the deflection radius (R) of the mandrel type receiving means, and that at least one transfer device (11) is interposed between a deflection portion of the heating path (1) and the portion of the blow path (7) which faces the deflection portion, and is controlled in such a manner that it grips the parisons and puts them on the blow path when the parisons on the deflection portion of the heating path (1) are spaced apart from one another at a distance corresponding to the spacing of the blow mold cavities on the blow path (7).

REFERENCES:
patent: 3850566 (1974-11-01), Moore
patent: 4354813 (1982-10-01), Collombin
patent: 4479772 (1984-10-01), Kleimenhagen
patent: 4767311 (1988-08-01), Gibbemeyer
patent: 5110282 (1992-05-01), Voss
patent: 5308233 (1994-05-01), Denis et al.
patent: 5516274 (1996-05-01), Maggert

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