Stuffer box crimper

Details Stuffer box crimper Stuffer box crimper

D - Textiles, Paper

02

G

28/42

D02G 1/12 (2006.01)

Patent

CA 1233626

Abstract An improved stuffer box crimping apparatus of the type in which tow is fed into a rectangular cross-section crimping chamber off-set from the bite of a pair of feed rolls, the apparatus employing a crimping chamber wherein one wall is predominantly formed by a single doctor blade and an opposite wall is formed by a portion of the rotating surface of one of the cylindrical feed rolls of the feed roll pair, the doctor blade being pivotally mounted on the feed roll nearest the tip portion of the doctor blade. The cross-sectional area of the crimping chamber diminishes toward the exit portion thereof, whereby crimped filamentary material within the crimping chamber is subjected to both back pressure and a constant forwarding action by the rotating surface of the cylindrical feed roll. The pivotal mounting of the doctor blade provides precise clearance and allows the volume of the crimping chamber to adjust in accordance with tow variations.

444565

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