Patent ID: 6226838
Filing Date: 2001-05-08
Classification: D01H

Abstract:
A device for opening slivers (4) for feeding an OE spinning device (3), comprising a sliver feed device defining a sliver clamping position (7) located between a feed roller (6) and a feed table (5), a rotating opening roller (8) having a circumference with spirally arranged combing elements (9, 24) extensibly fixed thereon for engaging at the clamping position (7) into an end of a sliver being fed by the sliver feed device, the spirally arranged combing elements (9, 24) forming spirally arranged intermediate spaces on the circumference of the opening roller (8), and a support roller (13, 28, 29) rotating in the opposite direction from the opening roller (8) and comprising extensibly fixed spirally arranged combing elements (14, 24, 25, 26), the respective combing elements of the opening roller (8) and the support roller (13,28,29) meshing with one another in a common effective range (11) adjacent the clamping position (7) downstream of the direction of sliver feeding by the sliver feed device, the combing elements of the support roller (13, 28, 29) extending into the spirally arranged intermediate spaces between the spirals of the combing elements (9, 24) of the opening roller (8), the opening roller (8) and the support roller (13, 28, 29) being driven at a translation ratio of their respective speeds comparable to a ratio between a rise of the spiral of the combing elements (9, 24) of the opening roller (8) and a rise of the spiral of the support roller (13, 28, 29).