APPARATUS IN A HAT CARD, A ROLLER CARD OR EQUIVALENT FOR CLEANING THE FIBROUS MATERIAL, HAVING A FIRST HIGH-SPEED ROLL

摘要

In an apparatus for cleaning fibrous material, a first roll (3b), which is adapted to support or convey a fiber web, is associated with a second roll (18) and a third roll (19). The rollers (3b, 18, 19) have a lining with needles or teeth that are inclined at an acute angle (forward angle) in the direction of rotation, and in the region of the fiber transition of the first roll (3b) to the second roller (18), the needles or teeth are inclined in different directions and the speed of the second roller (18) is small compared to the speed of the first roller (3b). In order to improve the degree of cleaning, the front angle of the teeth (182) of the second roller (18) is about 10 DEGREE to 50 DEGREE and the lining spaces are large in order to obtain a higher filling volume for them. fibers.