TENSIONER FOR CONTINUOUS WEB REWIND ROLL
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United States of America Patent
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Issued Date -
Jan 13, 2011
app pub date -
Jul 13, 2009
filing date -
Jul 13, 2009
priority date (Note) -
Abandoned
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Abstract
A tensioner for controlling tension in a continuous web being wound onto a rewind roller after the web is processed, for example after printing on labels carried on the web. The tensioner receives the web from a processor and has a slack sensor between the processor and the input of the tensioner. The slack sensor indicates when the slack is a selected minimum, and the web is clamped by the tensioner. After a selected time, which is before the slack sensor indicates a maximum slack is present, the motor driving the rewind roller is stopped and the web is unclamped. After unclamping the web, the rewind roll is again driven at a speed to take up more of the web than that which is driven by the processor, to wrap the web around the core until the slack sensor indicates the slack in the web is at a minimum.
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