Apparatus for granulating synthetic plastics materials

Details Apparatus for granulating synthetic plastics materials Apparatus for granulating synthetic plastics materials

1996-08-23

1997-12-16

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means forming from bulk and downstream severing means

264142, 425208, 425313, 425382R, 425DIG230, B29C 4738

Patent

active

056982372

ABSTRACT:
An apparatus for granulating thermally unstable synthetic plastic material includes a tip-driven plasticizing screw positioned in a housing. The screw conveys the synthetic plastic material through exit openings in the housing, wherein granulating knives slidably engaged with the housing exit openings cut-off pellets of synthetic plastic material. The drive mechanism for the plasticizing screw is disposed at the exit opening side of the screw with the orbit of the granulating knives disposed between the exit openings and the drive mechanism. The drive shaft of the plasticizing screw is detachably coupled to the front, or exit, end of the screw. A conveyor blower cools the pellets as they are severed from the exit openings, and further operates to convey the pellets to a storage bin for packaging.

REFERENCES:
patent: 3286660 (1966-11-01), Peterson
patent: 4099900 (1978-07-01), Bradbury et al.
patent: 4145453 (1979-03-01), Lenhardt, Sr.
patent: 5009586 (1991-04-01), Pallmann
patent: 5153008 (1992-10-01), Koch
patent: 5186959 (1993-02-01), Tanaka
patent: 5215764 (1993-06-01), Davis et al.
patent: 5344300 (1994-09-01), Shapcott

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