Pressing device for winding machines for producing tubular packs of printed products

An apparatus for fabricating tubular packages of printed products comprising the combination of

• a frame;
• a winding core (1) rotatably mounted on said frame in a fixed location and having a central axis;
• two flexible endless belts;
• means for supporting and guiding said belts for contact with the periphery of said core and products wound thereon;
• a belt conveyor (3) for delivering an imbricated stream of printed products to said core between said core and one of said belts for winding said products around said core to produce a package;
• means for pivotably mounting said belt conveyor at a location remote from said core so that an end adjacent said core is movable to adapt to an increasing diameter of the package of products being wound on said core and so that said end adjacent is movable away from said core upon completion of a package;
• said means for supporting and guiding said belts including
• a plurality of belt guiding rolls for guiding said belts in a predetermined sequence,
• pivotable support lever means for rotatably and transmutably mounting selected rolls of said plurality of rolls so that positions of said selected rolls are movable to adapt positions thereof to a changing diameter of a package being formed, and
• means for compensating lengths of portions of said belts in contact with a package being formed to said changing diameter;
• release means actuatable upon completion of a package for displacing said selected rolls and changing the belt guiding sequence and for fully withdrawing said belts from said core and products wound thereon;
• and
• an ejector movable axially relative to said core for removing a completed tubular package form said winding core.