Automatic device for regulating and monitoring the tension of the sliver transferred from the drafting unit of a card to the sliver collection unit

摘要

A device (10) for monitoring and regulating the tension in the sliver (7) produced by a carding unit (1) and transferred from this along a path (7) to a unit for its collection into cans (4) for further processing, comprising a deviator bar (11) pivoted on a pivot (12) and an oppositely located rod (14) provided with means (15) which oppose the rotary movement of the bar deriving from the variations in tension of the sliver deviated by it, the sliver tension being measured by sensors (16,20) on the basis of the effect induced by the sliver on the bar, the relative signals being transmitted to the control unit (17) which compares the values received with the allowable limiting values and implements the consequent interventions.