Granulating apparatus, especially for strands of thermoplastic m

Details Granulating apparatus, especially for strands of thermoplastic m Granulating apparatus, especially for strands of thermoplastic m

1976-01-22

1977-05-24

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Immersed shaping orifice discharging directly into liquid...

425 71, 425308, D06H 700

Patent

active

040252523

ABSTRACT:
The present granulating apparatus is especially suitable for chopping strands or thermoplastic material into small pieces as the strands emerge from nozzles. For transporting these strands when they are still hot and partially liquid from the nozzles to a cutting apparatus, there is arranged a chute between the nozzles and a pair of feeding rollers just upstream of the cutting apparatus. The feeding rollers exert a slight pull on the strands. The chute has an entrance end or inlet and an exit end or outlet, as well as a chute path interconnecting said ends, said chute path protruding at least at said ends from a common plane defined by the nozzles and by said feeding rollers, whereby the strands are pressed against the chute at least at the chute ends. A housing surrounds the cutting roller. Cooling water supplied to the housing is divided into a main stream and into a water curtain. The water curtain is so located that the cut off granules must first pass through the curtain before contacting the housing. The main stream floats the granules out of the housing.

REFERENCES:
patent: 1060122 (1913-04-01), Prosig
patent: 1740029 (1929-12-01), Moomy
patent: 2739546 (1956-03-01), Bonnafoux
patent: 3073733 (1963-01-01), Mitchell
patent: 3423497 (1969-01-01), Arnold et al.
patent: 3723035 (1973-03-01), Franke

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