Welding wire feeder

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 9/12 (2006.01) B23K 9/133 (2006.01)

Patent

CA 2424084

A push-pull welding wire feeder includes plural wire feeding units provided in a wire feeding passage extending from a welding wire magazine, in which a roll of welding wire is accommodated, via a wire guide tube to a welding torch. At least one of the wire feeding units includes a torque limiter provided in a driving transmission system thereof for transmitting a driving force from a driving source to the welding wire. Accordingly, the welding wire feeder can steadily convey the welding wire even at acceleration or deceleration while allowing the welding wire to be bent, thus contributing to favorable result of its welding operation.

La présente invention concerne un dévidoir à fil de soudure de type poussé-tiré. En l'occurrence, plusieurs dévidoirs de fil équipent un chemin d'alimentation en fil joignant, via un tube guide-fil, un récipient à fil de soudure renfermant ce fil en bobine à un chalumeau soudeur. En outre, un limiteur de couple (14) équipe l'un au moins des dévidoirs au niveau d'un système d'entraînement mené par une source mécanique (12) et menant un galet (26) entraînant le fil de soudure. Il en résulte une alimentation stable en fil même en cas d'accélération ou de ralentissement du dévidoir, avec des bons résultats, tout en évidant la formation de boucles et de noeuds.

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