Electronic feeder apparatus for automatically controlling the tension of the yarn in a knitting machine and textile machines in general

摘要

A feeder apparatus for automatically controlling in real time the tension of a textile yarn, includes a control device for continuously controlling the tension of the textile yarn, before supplying it to a textile machine, the control device controlling a swinging lever arranged downstream of a drum and driving an adjustable movable shield element adapted to intercept a light, thermal or electromagnetic radiation impinging on a sensor which transforms the received radiation into an electronic signal proportional to said radiation and driving a display of the yarn tension.