Forming arrangement for machines making receptacles out of therm

Details Forming arrangement for machines making receptacles out of therm Forming arrangement for machines making receptacles out of therm

1981-04-03

1983-07-19

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

264509, 425126R, 425296, 425521, A23G 120, B29C 300

Patent

active

043941150

ABSTRACT:
An improved heat-forming deep-drawing molding machine for producing receptacles with thermoplastic banderoles, which machine includes a mandrel which coacts with a mold or a forming chamber for forming a closed banderole coil or loop. The mandrel has substantially the shape of the mold cavity. The mandrel slidably reciprocates in the mold cavity relative to the mold or the forming chamber and has a fixed transverse section relative thereto. The mandrel is composed of stationary and rotatable parts relative to the forming chamber. The rotating parts coact with the curved or round parts of the forming chamber or mold cavity. The rotating parts include suction channels which bias the banderole thereagainst so as to effect an advancing movement of the banderole in the forming chamber. The suction channels are operatively connected to a vacuum source.

REFERENCES:
patent: 3957412 (1976-05-01), Lechevallier
patent: 4335635 (1982-06-01), Hautemont

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