Delivery apparatus in machine for preparing plastic hollow vesse

Details Delivery apparatus in machine for preparing plastic hollow vesse Delivery apparatus in machine for preparing plastic hollow vesse

1988-01-14

1990-05-29

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

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

With heating or cooling means

425540, B29C 4936

Patent

active

049294504

ABSTRACT:
In a delivery apparatus in a machine for preparing hollow vessels by delivering mandrels supporting thereon preforms and vessels through a preform-heating zone and a draw-blow-forming zone, the downward movement of a mandrel-clamping mechanism is utilized for insertion of a preform into the mandrel and the rising movement of the clamping mechanism is utilized for withdrawal of a formed vessel. By this arrangement, insertion and fixation of preforms into mandrels and withdrawal of formed vessels from mandrels can be performed continuously, assuredly and smoothly in one apparatus while saving the waste in the blow-forming operation. If the operation of reversing the clamping mechanism is added, any particular device need not be disposed for reversing preforms.

REFERENCES:
patent: 2715751 (1955-08-01), Weber
patent: 3599280 (1971-08-01), Rosenkranz
patent: 4214860 (1980-07-01), Kleimenhagen et al.
patent: 4233010 (1980-11-01), Suzuki
patent: 4299549 (1981-11-01), Suzuki et al.
patent: 4344749 (1982-08-01), Fritz et al.
patent: 4355968 (1982-10-01), Lagoutte et al.
patent: 4479772 (1984-10-01), Kleimenhagen
patent: 4505664 (1985-03-01), Craig
patent: 4592720 (1986-06-01), Dugan et al.

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