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AssigneeW. Schlafhorst AG & Co.
InventorsRolf Haasen, Hans Günter Wedershoven, Bernd-Rüdiger Theele
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A method for operating the winding heads of a bobbin winding machine each of which respectively has a yarn tension sensor connected to a work station computer for detecting the actual tension in a yarn traveling from a delivery bobbin to a take-up bobbin, a yarn tensioner for regulating the yarn tension, a splicing device for automatic connection of yarn ends following a yarn break and/or a yarn cleaning cut, and a delivery bobbin changing device. After a splicing of the broken or cut yarn ends, the actual yarn tension is detected by the yarn tension sensor, and the detected value is compared in the work station computer with a threshold value which, if exceeded, results in actuation of the delivery bobbin changing device to provide a fresh delivery bobbin.
A method for operating a work station of a bobbin winding machine having a yarn tension sensor connected to a control device for monitoring the yarn tension of a yarn running from a delivery bobbin to a take-up bobbin, a yarn tensioner for regulating the yarn tension, a splicing device for the automatic connection of a first yarn end of the delivery bobbin with a second yarn end of the take-up bobbin following a yarn break or a yarn cleaning cut, and a delivery bobbin exchange device for exchanging delivery bobbins which cannot be further unwound, the method comprising the steps of monitoring an actual value of the yarn tension by means of the yarn tension sensor after connecting the first yarn end with the second yarn end, and actuating the delivery bobbin changing device by the control device to replace an existing delivery bobbin with a fresh delivery bobbin if the actual value of the yarn tension exceeds a predeterminable threshold tension value.
Dependencies are inferred from the claim text.