Machine and winding process for the storage of flat elements

A winding machine that includes an assembly for the spooling of a continuous flow of flat and flexible elements aligned along a longitudinal axis and partially overlapping, to form a spool by rolling these elements in a spiral around a drum mounted onto a rotating axis supported by a chassis, with the insertion of a flexible central strip between the turns, and an assembly for unwinding said flexible strip, one end of which is fixed onto the drum and the other end of which unwinds from a hub fixed onto a shaft distinct from said rotation axis, on which hub the strip has previously been wound, with a braking device being provided on the hub to ensure continuous tension of the strip, wherein the machine also includes a motor-driven resource to regulate the transverse position of the hub so as to perform a lateral movement of this hub in relation to the spool in order to maintain a constant alignment of the strip during the winding process, the shaft being supported by a trolley mobile transversally and mounted on a guidance resource allowing a transverse movement in relation to a chassis of the unwinding assembly, wherein the braking device includes a rotating electrical machine controlled by a command to deliver a braking force or a motor torque to the hub, and wherein the rotating electrical machine is fixed to the trolley, so that the hub together with the rotating electrical machine are mobile transversally in respect to the drum.