| 摘要 |
A device for granulating plastic melts comprises a granulating head ( 2 ) to which a perforated plate ( 3 ) provided with melt-discharge openings ( 10 ) is attached, which openings are swept by rotating knives ( 4 ). The perforated plate ( 3 ) is enclosed by a granulating housing ( 1 ) which is provided with at least one housing inlet ( 7 ) through which a cooling and transport medium (C), preferably water or air, can be supplied to the interior of the granulating housing ( 1 ), the cooling and transport medium (C) flowing with a motion component along the inner wall of the granulating housing ( 1 ) from the granulating head ( 2 ) toward a housing outlet ( 8 ) which is arranged in the end region of the granulating housing ( 1 ) opposite to the granulating head ( 2 ) and through which the cooling and transport medium (C) can be discharged along with the granules (G) produced. The rotating knives ( 4 ) are arranged in a knife holding device ( 6 ) mounted in a rotatable manner and coupled to the drive shaft ( 18, 18' ) of a motor ( 9 ) via a magnetic clutch ( 15 ), hence being driven in a contactless manner.
|
