Winding device for foil, sheeting etc. with automatic monitoring of winding rate

摘要

The rate at which the material is rolled up is controlled. This may be done by controlling the revs. of the winding roller or the diameter of the roll. If the roll diameter changes, the roll revs may change too. The roll diameter may be measured by a feeler or a sensor. The rolling-up rate may also be measured by a sensor. The rolling-up rate can be measured from the number of revolutions of a roller lying against the material. In the case of a hydrostatic drive control may be achieved by an adjustable flow divider.