Apparatus improvements in a rotary blow molding machine

Details Apparatus improvements in a rotary blow molding machine Apparatus improvements in a rotary blow molding machine

1975-04-09

1976-02-03

Lazarus, Richard Bernard

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means for forming from bulk material, means for severing and...

425DIG212, 425342, B29D 2303

Patent

active

039362639

ABSTRACT:
Plastic is cleanly severed between closely adjacent inner sections of radially operable blow molds in a rotary molding machine during mold opening by means of a wiper blade on the trailing face of the inner section of one mold angularly projecting toward and having its rear edge engaging the forward face of the next succeeding inner mold section, each such inner section being spring mounted and arranged because of the mold-opening cam configuration, to spring outwardly such that the rear edge of the blade slides along the forward face of the succeeding mold to consistently shear the plastic between such edge and such forward face.

REFERENCES:
patent: 2750624 (1956-06-01), Coates et al.
patent: 3097398 (1963-07-01), Ingelsby
patent: 3457591 (1969-07-01), Szajna
patent: 3488803 (1970-01-01), Cote
patent: 3585682 (1971-06-01), Martelli
patent: 3741705 (1973-06-01), Duekers
patent: 3752629 (1973-08-01), Gordon
patent: 3763297 (1973-10-01), Del Piero et al.
patent: 3777609 (1973-12-01), Michel et al.
patent: 3785761 (1974-01-01), Logomasini et al.

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