Abstract: A wire feeding system, in particular for feeding a so called “cold wire” or wire with no tension nor signal running on its surface, in which the pulling or holding of the wire by the front wire feeder puts the rear pushing slave booster respectively into a pre-set active full motor torque or into a pre-set stand-by minimum motor torque, as needed. Alternatively, a wire feed system for feeding a so called “cold wire” or wire with no tension nor signal running on its surface, in which the rear pushing slave booster is remotely controlled by an optic sensor positioned nearby the torch and sensing the light of the torch welding or spraying arc.

Abstract: An auxiliary wire feeder has a pushing device for advancing welding wire, a control device for controlling the pushing device, and an electric contact adapted for being in electrical connection with the welding wire. The electric contact is connected to the control device for supplying a control signal to the control device. A welding system comprises an auxiliary wire feeder of this kind and further a welding torch, a main wire feeder, a wire guide for guiding welding wire from a supply to the welding torch and a welding current contact for supplying welding current to the welding wire. For controlling an auxiliary wire feeder in a welding system having a welding torch, a main wire feeder, a wire guide for guiding welding wire from a supply to the welding torch, a welding current contact for supplying welding current to the welding wire, the control of the auxiliary welding wire feeder is responsive to an electrical signal transmitted via the welding wire.

Abstract: A module for controlling welding parameters and a method for operating a welding wire feeder is disclosed, with the feeder having a motor, a feeding wheel driven by the motor, a control which controls operation of the motor, an operator interface adapted for allowing an operator to input data which is being used by the control.

Abstract: An auxiliary wire feeder has a pushing device for advancing welding wire, a control device for controlling the pushing device, and an electric contact adapted for being in electrical connection with the welding wire. The electric contact is connected to the control device for supplying a control signal to the control device. A welding system comprises an auxiliary wire feeder of this kind and further a welding torch, a main wire feeder, a wire guide for guiding welding wire from a supply to the welding torch and a welding current contact for supplying welding current to the welding wire. For controlling an auxiliary wire feeder in a welding system having a welding torch, a main wire feeder, a wire guide for guiding welding wire from a supply to the welding torch, a welding current contact for supplying welding current to the welding wire, the control of the auxiliary welding wire feeder is responsive to an electrical signal transmitted via the welding wire.

Abstract: A wire feeding system, in particular for feeding welding wire, has a wire movement sensing device adapted for being mounted onto a wire guideliner, and a feed assisting device for feeding welding wire depending from signals received from the wire movement sensing device.

Abstract: The present disclosure relates to a wire guiding liner, in particular a welding wire liner, having a plurality of guiding bodies which are pivotable with respect to each other around a defined pivot axis. At least one biasing device is provided which acts between adjacent guiding bodies so as to push them apart while still allowing the liner to bend under pressure.

Abstract: A liner for guiding wire, in particular welding wire, is formed from at least two different types of bodies arranged successively so as to form the liner. Each of the bodies carries a set of rolling elements.

Abstract: A wire guiding liner, in particular welding wire liner, has a plurality of roll holders which are displaceable with respect to each other, each roll holder holding a plurality of rolls. The angular displaceability of a roll holder with respect to the adjacent roll holder is limited such that when the wire is fed through the liner, it always touches exclusively on the rolls even when the liner is bent to its maximum curve, such that the wire while being inserted always hits the next roll at an angle that will push it towards and maintain it guided at the center of the liner.

Abstract: A welding wire guiding liner has a plurality of guiding bodies connected to each other, each of the guiding bodies containing a plurality of rolling elements defining a guiding channel for the welding wire. Each guiding body has a ring which is coaxial with the guiding channel and is freely rotatable in a peripheral direction on the body. The ring is connected to the adjacent guiding body by means of a swivel joint which allows the adjacent guiding body to swivel around a swivel axis with respect to the guiding body provided with the ring.