The apparatus on a spinning preparation machine, for example card, a card, drafting frame or the like, for monitoring at least of a fiber sliver

摘要

In the case of a device to a spinning preparation machine, for example, card, distance or the like, for monitoring at least of a fiber sliver, with two rotating rollers, which form a nip through which at least one fiber sliver passes, is an optical monitoring device (sensor) in the vicinity of the rollers is provided, which controls the presence of the fiber sliver.In order in a constructively simple manner a reliable and trouble-free, strip breakage monitoring, the sensor device is in the region between the common tangents arranged perpendicular to the machine on the surfaces of the rollers of the beam path of the sensor and extends parallel to the axes of rolls.