Blow molding machine

Details Blow molding machine Blow molding machine

1997-11-14

1999-11-02

Davis, Robert

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

4254501, 4254513, 4254519, B29C 3320, B29C 4956

Patent

active

059758813

ABSTRACT:
A blow molding machine, includes a base frame, a blow mold adapted for receiving a tubular parison and having a first mold support plate for support one mold half and a second mold support plate for support of another mold half. A transport unit is mounted to the base frame for so moving the first and second support plates that the mold halves are free from any direct, form-fitting coupling, with the transport unit including a first drive mechanism operatively connected to the first support plate and a second drive mechanism operatively connected to the second support plate and operating independent of the first drive mechanism. Secured to the support plates is a locking mechanism for pinching off the tubular parison and clamping the mold halves during the blow molding operation.

REFERENCES:
patent: 3465387 (1969-09-01), Allard et al.
patent: 4421472 (1983-12-01), Martin, Jr.
patent: 4594067 (1986-06-01), Langos
patent: 4998873 (1991-03-01), Martin et al.
patent: 5562934 (1996-10-01), Langos et al.
patent: 5645873 (1997-07-01), Carter, Jr.
patent: 5720918 (1998-02-01), Wollschlager et al.
patent: 5730927 (1998-03-01), Rader et al.

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