Labelling machine and method for its operation
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United States of America Patent
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Dec 26, 2017
Grant Date -
Oct 1, 2015
app pub date -
Nov 7, 2013
filing date -
Nov 7, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A labelling machine comprises a supply spool support for supporting a supply spool comprising label stock; a take-up spool support adapted to take up a portion of the label stock; a movable element which defines a portion of a web path between the supply spool and the take-up spool support; a sensor configured to produce a sensor signal indicative of the position of the movable element; a controller configured to receive the sensor signal and output a brake assembly control signal based upon the sensor signal; and a brake assembly configured to apply a braking force to one of said spool supports based upon the brake assembly control signal, the braking force resisting rotation of said one of said spool supports. The controller is configured to control the brake assembly based upon the sensor signal so as to cause the moveable element to move towards a desired position.
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