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Method for controlling a winding station of a bobbin winding machine when a take-up bobbin is changed and winding station for performing the method
Method for controlling a winding station of a bobbin winding machine when a take-up bobbin is changed and winding station for performing the method
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机译:在更换卷线筒管时控制筒管卷绕机的卷绕站的方法以及用于执行该方法的卷绕站
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摘要
A method and apparatus for controlling a winding station of a bobbin winding machine when changing a take-up bobbin includes driving the take- up bobbin by contact with a yarn guide drum depositing a yarn, and bringing the take-up bobbin to a standstill by controlled deceleration of a rotary speed of the yarn guide drum after ascertaining that a predetermined yarn quantity has been reached, until the yarn guide drum comes to a standstill. This is done while producing a varying slip between a surface of the yarn guide drum and a surface of the take-up bobbin effecting ribbon prevention but being limited to avoid knocking the yarn off the bobbin and damage to the surface of the bobbin. A winding station of a bobbin winding machine includes a yarn guide drum driving a take-up bobbin by contact while depositing a traveling yarn on the take-up bobbin. A drive mechanism for the yarn guide drum has a rotary field motor. An electronic yarn cleaner monitors the traveling yarn. A measuring device detects attainment of a predetermined yarn quantity and outputs a signal. A circuit is activated by the signal for reducing a rotary field frequency of the rotary field motor down to 0 Hertz in increments.
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