Patent application number | Description | Published |
20110088578 | Compressible roll top of former for multiribbon transport - A folder superstructure includes a former, a first top of former roll located upstream of the former and having a compressible outer layer and a second top of former roll forming a nip with the first top of former roll. A method for operating a printing press is also provided. | 04-21-2011 |
20120211936 | METHOD AND APPARATUS FOR DIVERTING SIGNATURES IN A FOLDER - An apparatus for transporting signatures is provided which includes a moving transport surface for transporting signatures; a pair of eccentric guide rollers, rotatable about respective axes, the pair of guide rollers positioned opposite one another to receive signatures therebetween from the moving transport surface; and a diverter positioned downstream of the guide rollers. The diverter is movable between a first position to divert signatures received from the guide rollers to a first downstream moving transport surface and a second position to divert signatures received from the guide rollers to a second downstream moving transport surface. | 08-23-2012 |
20120322643 | METHOD AND APPARATUS FOR TRANSPORTING SIGNATURES AROUND A ROLL WITHOUT INTRODUCING SKEW - An apparatus for transporting folded signatures is provided which includes a first roller and a second roller forming a first nip with the first roller. The first and second rollers each have a compressible outer layer, and are rotatable about respective axes. Preferably, the compressible outer later comprises a microcellular foam. The apparatus also includes a plurality of first transport tapes passing through the first nip and a plurality of second transport tapes passing through the first nip. The plurality of second transport tapes are wrapped at least partially around the second roller so that a signature transported between the first and second transport tapes between the first nip undergoes a change in transport direction as it is transported at least partially around the second roller. Preferably, the signatures enter the first nip perpendicular to a plane passing through the axes of the first and second rollers. | 12-20-2012 |
20130269493 | VARIABLE CUTOFF IN A CUTTER FOLDER - A folder for a printing press includes a cutting cylinder assembly having at least two knife and anvil cylinder sets positioned near the cutting region of a folder. The cutting cylinder assembly slides or actuates one of the knife and anvil cylinder sets into a cutting position for a desired cut length. The web passes between the knife and anvil cylinder set and is cut. When the cut length needs to be changed, the assembly is relocated to such a position that a second or further set of knife and anvil cylinders is aligned with the web. | 10-17-2013 |
20130294808 | VARIABLE CUT OFF IN A DOUBLE CUT FOLDER - A double cut folder is provided for a printing press. The folder has a first cutting cylinder pair including a first knife cylinder and a first anvil cylinder for perforating a web, and a second cutting cylinder pair including a second knife cylinder and a second anvil cylinder for cutting the web into signatures. Each cutting cylinder pair includes a plurality of knife mounting locations and a plurality of cutting rubber locations. Each knife mounting location is configured to hold a knife box. A first subset of the plurality of knife mounting locations each have a knife box secured therein, and a second subset of the plurality of knife mounting locations do not have a knife box secured therein. | 11-07-2013 |
20140187404 | DYNAMIC GUIDE FOR A PAPER FOLDING MACHINE - A folding device is provided for folding n sheet comprises a jaw cylinder, a folding cylinder, a paper guide, and an actuator. The jaw cylinder has a jaw, and the folding cylinder has a hold down element and a folding blade. The folding blade is movable between an extended position and a retracted position. The folding blade is in the extended positron to transfer one or more sheets to the jaw cylinder during a fold off operation, and the folding blade is in the retracted position during a collect operation. The paper guide is positioned between the folding cylinder and the jaw cylinder. The paper guide includes a static guide element and a reciprocating guide element connected to the static guide element, the reciprocating guide element movable between a retracted position and an extended position. The actuator is connected to the reciprocating guide element; the actuator configured and arranged to place the reciprocating guide element into the extended position during the collect operation and into the retracted position during the fold-off operation. | 07-03-2014 |