The invention is related to a device for supplying two or more wires in a twisted configuration, so that they are mutually constrained during supply, comprising fixed support means with a first coil of a main wire (105,205,305,405,505) and with one or more additional coils of respective secondary wires (113,213,313,413,513) and means for conveying the simultaneous traction of said wires according to a concordant direction, whereby the main wire (105,205,305,405,505) is conveyed through said one or more additional coils, by determining in this way the winding of said secondary wires (113,213,313,413,513) around said the wire according to a helicoidal line.