APPARATUS FOR DETERMINING FIBRE LENGTHS AND FIBRE LENGTH DISTRIBUTION FROM A FIBRE MATERIAL ESPECIALLY IN SPINNING PREPARATION

摘要

1. Apparatus for determining fibre lengths and fibre length distribution from a fibre material sample, especially in spinning preparation, in which sample preparation elements are located upstream of the measuring, evaluating and indicating device, said preparation elements comprising a clamping device and a combing element for the treatment of collected fibre material, the combing element producing a fibre fringe that is used for the measurement, characterised in that the collected fibre material (19; 28; 28a, 28b) is automatically conveyable by a conveyor device (25; 26/I, 27/II), is arranged to be suppled (31) to a clamp-type take-up device (34; 35a, 35b), is separable from the conveyor device (25; 26/I, 27/II) and transportable to at least one rotating combing device (39, 40), each end region (28a, 28b) of the collected fibre material (19; 28, 28a, 28b) protruding from the take-up device (34; 35a, 35b) being combable by the combing device (29, 40) and subsequently detectable by the measuring device (23; 53,54,55).