Apparatus for controlling contact pressure of a bobbin on a bearing roller in winding machine
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United States of America Patent
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-
Nov 17, 1992
Issued Date -
N/A
app pub date -
Jun 6, 1991
filing date -
Jul 22, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method and apparatus for controlling a contact pressure which a bobbin being wound with a thread exerts on a roller, the contact pressure is controlled by an adjusting device. The roller is mounted on a balance beam. The divergence of the balance beam from a desired position thereof is determined by a sensor and is converted in a controller into a correction movement of the adjusting device. The adjusting device includes a worn gear with a spindle nut and a spindle driven by a motor which is controlled by the controller. By means of the controller constructed as a control loop, it is possible to very precisely maintain the bearing pressure throughout the winding process independently of the specific weight of the bobbin.
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