Method and device for feeding a metal wire to an operating machine at a constant tension and quantity
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United States of America Patent
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May 30, 2017
Grant Date -
Nov 5, 2015
app pub date -
Nov 29, 2013
filing date -
Dec 20, 2012
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Abstract
A system for feeding a metal wire to a machine by a wire feeder, the wire being fed at a constant and desired tension detected by a tension sensor, the feeder having at least one rotary member driven by an actuator thereof onto which the metal wire is wound for a rotation or fraction of rotation and suitable to feed the wire to the machine at the pre-set tension under the action of a control unit. A detector to detect the quantity of wire fed is provided and connected to the control unit to provide the control unit with the quantity data thereof, the control unit intervening on the rotary member to keep the quantity of wire fed at least within a reference value.
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