Abstract: Disclosed is a system for winding an end of a thread on a central axis of a spool. The system includes a support means for the central axis, the support means being associated with a mechanism for driving this axis in axial rotation. The system further may have a mechanism for moving a portion of the thread to be wound, positioned downstream of the free end of the thread, and a hooking interface to catch a portion of the thread to be wound, this interface being positioned at the end of the spool central axis and fixed in rotation with the central axis to drive the winding of the thread around the central axis. Finally, the system may have a cutting mechanism of the thread upstream of the portion of the thread interacting with the hooking interface.

Abstract: Disclosed is a system for fastening the free end of a thread of a spool, the system including a support means for a spool, a needle having at its end a hook associated with a mechanism for opening/closing the hook, the needle being oriented along an axis substantially parallel to the axis of the spool, a mechanism for axial pivoting and axial translation of the needle, and a retaining mechanism in position of a turn of the thread of the spool.

Abstract: This invention relates to a roller for a wire-feed device having a main cylindrical body forming a hub designed to be driven in rotation about its axis of symmetry, a peripheral cylindrical structure forming an idler roller mounted round the perimeter of the main body, and a means for the cylindrical structure to be driven in rotation by the main body. Moreover, the internal diameter of the cylindrical structure is greater than the external diameter of the main body so as to create a space between the cylindrical structure and the main body to enable a displacement of the cylindrical structure in relation to the main body with a misalignment of the axis of rotation of the cylindrical structure in relation to the axis of rotation of the main body.

Abstract: This invention relates to a roller for a wire-feed device having a main cylindrical body forming a hub designed to be driven in rotation about its axis of symmetry, a peripheral cylindrical structure forming an idler roller mounted round the perimeter of the main body, and a means for the cylindrical structure to be driven in rotation by the main body. Moreover, the internal diameter of the cylindrical structure is greater than the external diameter of the main body so as to create a space between the cylindrical structure and the main body to enable a displacement of the cylindrical structure in relation to the main body with a misalignment of the axis of rotation of the cylindrical structure in relation to the axis of rotation of the main body.