Revolver-type winding machine for strip material

A revolver-type winding machine for web material which comprises:

• two parallel first and second winding shafts each of which is provided with an independent rotary drive device connected directly to a first end of a corresponding one of the first or second winding shafts;
• a disc-shaped support plate bearing said rotary drive means and first and second winding shafts, the first and second winding shafts being arranged perpendicular to said disc-shaped support plate, the disc-shaped support plate being rotationally supported with respect to a circular opening of a first vertical wall of a framing;
• rotary drive means for causing said disc-shaped support plate to rotate about a horizontal axis centrally arranged with respect to the disc-shaped support plate to alternately arrange the first and second winding shafts in a loading position next to a web material supply source;
• guiding means and drive means for moving said rotary drive devices and first and second winding shafts linearly along said disc-shaped support plate in a plane perpendicular thereto and passing through its a center of the disc-shaped support plate;
• and
• support structures for supporting a second end of each of said first and second winding shafts during at least part of the linear movement thereof along the disc-shaped support plate and during the formation of a reel on each of them, said support structures being supported on a second vertical wall of said framing, opposite said first vertical wall;
• wherein:
• said support structures comprise first and second carriages that can move linearly along parallel first and second pairs of guides fixed on said second vertical wall, said first and second carriages bearing selectively releasable first and second clamp means which keep said second ends of the first and second winding shafts held in a horizontal plane coplanar with said plane perpendicular to said disc-shaped support plate at all times during the formation of a reel on any one of said first and second winding shafts;
• said first and second pairs of guides and first and second carriages are located on an inner face of said second vertical wall of the framing, directly facing the second ends of the first and second winding shafts;
• the first carriage is arranged above the first winding shaft and has a first carriage coupling section coupled with the first pair of guides and a first carriage end section bearing said first clamp means, said first carriage end section being inclined downwards and projecting towards an outer side edge of the second vertical wall with respect to said first carriage coupling section;
• and
• the second carriage is arranged below the second winding shaft and has a second carriage coupling section coupled with the second pair of guides and a second carriage end section bearing the second clamp means, said second carriage end section being inclined upwards and projecting towards said outer side edge of the second vertical wall with respect to said second carriage coupling section.