Textiles: fiber preparation – Working – Drafting
Patent
1991-04-29
1992-10-27
Schroeder, Werner H.
Textiles: fiber preparation
Working
Drafting
19 023, 19106R, 19260, 73160, D01H 532
Patent
active
051578107
ABSTRACT:
For use in a spinning mill, the apparatus is used to even up the mass of sliver being conveyed, for manufacturing perfect roving yarns. The evening up takes place by measuring the thickness of the sliver after it has been compressed to a certain volume in a gap between two rollers. One roller is rigidly arranged, whereas the other is supported in a resilient manner or has a resilient portion. Movements by the resilient roller are indicative of the extent of the deviations in the thickness of the conveyed sliver, and the movements of the resilient roller are monitored by a sensor which sends signals for controlling devices for facilitating the evening up the amount of the sliver mass being fed. By means of the arrangement of rollers, the apparatus does not generate oscillations which would alter the measured results from the measuring rollers under certain operational conditions. The measuring apparatus is arranged from a constructional point of view in such a manner that its natural oscillations are such that it provides precise measured values under all operational conditions. In addition, the material is easily fed into the measuring device.
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Maschinenfabrik Rieter AG
Neas Michael A.
Schroeder Werner H.
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