Winding machine for groups of packages

Machine for creating at least one helical winding for a web extensible around a load, comprising a stationary plane for supporting the load, a fixed framework overlying said plane, a framework overlying the moveable load vertically on the fixed framework, which rotatably supports a horizontal circular guide rotated with respect to the framework moveable by suitable means, means for imposing vertical translations to the moveable framework, means rigidly suspended on said guide bearing the reel with the winding web, wherein the circular guide has a tubular section, and it is slidable within a seat integral with moveable framework constituted by at least three groups for sliding and supporting the guide, placed circumferentially equally spaced and each provided with at least one pair of wheels with mutually inclined axes for creating the seat for sliding and retaining the guide, characterised in that the guide is a hollow circular section and comprises—in symmetric positions with respect to the horizontal median plane of the guide—two flat elements which serve as a sliding seat for the pairs of wheels.