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US 2011/0006148 A1Published application
Tensioner for continuous web rewind roll
AssigneePrimera Technology, Inc.
InventorsMichael R. Tolrud, Darren W. Haas
Life of this patent
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AssigneePrimera Technology, Inc.
InventorsMichael R. Tolrud, Darren W. Haas
Estimating the term…
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.
A tension control device for a continuous web to be wound onto a roll having a motor for rotatably driving the roll for winding the web, the tension control device comprising:
A tension control system for regulating the tension in a continuous web as the web is wound onto a rewind roll from a printer driving the web, the printer having a web feed driving the web through the printer, the tension control system including a tensioner assembly between the printer and the rewind roll associated with the web, said tensioner assembly having a slack sensor for sensing slack in the web between the printer and the tensioner assembly, and a web restraint to prevent movement of the web around the rewind roll, a motor to drive the rewind roll to rewind a web thereon when the web restraint is positioned to permit movement of the web, and to tighten the web onto the roll at selected intervals when the web is prevented from movement around the rewind roll.
A method of controlling wrapping of a an elongated web onto a rewind roll, comprising driving the web longitudinally lineally from a processor, providing a driven rewind roller to take up the elongated web from the processor, providing a web restraint to selectively restrain the web from longitudinal lineal movement, periodically restraining the web and driving the rewind roller while the web is restrained to tighten lengths of the web previously wound on the rewind roller.
Dependencies are inferred from the claim text.