Patent application number | Description | Published |
20080295717 | Smooth roller with low line load and methods - An ink form roller in a printing press is provided including a core, a first layer surrounding part of the core, and a second layer surrounding part of the first layer, the second layer having a durometer hardness greater than the first layer. In addition, an ink form roller in a printing press is provided including a core, and a layer surrounding the core, the layer having a hardness between about 25 Shore A durometer and about 40 Shore A durometer, the layer having an outer surface, the outer surface having a surface roughness of about 30 micro-inches or less. Methods are also provided. | 12-04-2008 |
20100126366 | Porous roll with axial zones and method of proving printing liquid to a cylinder in a printing press - A roll for distributing printing liquid in a printing press is provided. The roll includes a roll core having at least a first and a second axial zone, a first liquid feed for feeding liquid to the first axial zone, a second liquid feed for feeding the liquid to the second axial zone independent of the first axial zone and a porous shell covering the first and second axial zones. A printing press, a method for providing printing liquid through a porous shell of a printing liquid supply roll to a cylinder of a printing press, an inking apparatus and a method for providing ink to an anilox roll are also provided. | 05-27-2010 |
20130087058 | POROUS ROLL WITH AXIAL ZONES AND METHOD OF PROVIDING PRINTING LIQUID TO A CYLINDER IN A PRINTING PRESS - An inking apparatus for a printing press is provided. The inking apparatus includes an anilox roll and at least one ink pump. The anilox roll includes an interior region, a porous layer surrounding the interior region and an outer surface of engraved cells surrounding the porous layer. The at least one ink pump is adapted to pump ink into the interior region and through the porous layer to the outer surface of engraved cells. A printing press and a method for providing ink to an anilox roll are also provided. | 04-11-2013 |
20140053745 | STRAIN CONTROLLED INFEED - Method and apparatuses for measuring and regulating the strain of a material web is disclosed. A material web is passed through a first and second non-slip roller pair. The first and second roller pair form a predefined span. In some embodiments, the angular positions of the first and second roller pair are monitored, and the phase angle between the roller pairs is calculated. The phase angle is directly related to the level of strain in the web, and the velocity of the web is controlled to maintain a phase angle which corresponds with the desired strain level. This maintains a constant strain level in the predefined span. In one embodiment, the strain entering a non-slip roll pair is controlled to be zero. The roll pair then introduces a predefined strain to the span entering subsequent processes. | 02-27-2014 |
Patent application number | Description | Published |
20100095818 | Section for transporting printed products of variable cutoffs in a printing press folder - A printing press folder is provided. The folder includes a cutting pair cutting a web at a cutting location to form signatures, a pair of transport cylinders forming a first nip and a pair of acceleration cylinders forming a second nip. The pair of transport cylinders receives the signatures downstream of the cutting pair at the first nip and transports the signatures away from the cutting pair. The first nip is separated from the cutting location by a first distance. The pair of acceleration cylinders receives the signatures from the pair of transport cylinders at the second nip and transports the signatures away from the pair of transport cylinders. The second nip is separated from the first nip by a second distance. The pair of transport cylinders is movable with respect to the pair of acceleration cylinders and the pair of acceleration cylinders is movable with respect to the pair of transport cylinder so the first distance and the second distance are selectively variable. A signature transport section and a method of transporting signatures of varying lengths in a printing press are also provided. | 04-22-2010 |
20100181360 | Tension Control System for Deformable Nip Rollers - A method and apparatus for controlling web tension in a web printing press having a plurality of sets of deformable nip rollers, each set driven by a separate driver, the web passing sequentially through each set of deformable nip rollers and forming a web segment therebetween. The driver of a downstream set of deformable nip rollers is adjusted to set the tension of a first web segment and a controller adjusts a first characteristic of the driver of the upstream set of deformable nip rollers to maintain the tension of a second web segment constant. Alternatively, a sensor measures a second characteristic of the second web segment and the controller adjusts the first characteristic of the driver of the upstream set of deformable nip rollers based on the measurement from the sensor. | 07-22-2010 |
20100201056 | Single level web conversion apparatus and method - A single level web conversion apparatus is provided. The single level web conversion apparatus includes a web guiding apparatus guiding a web, a former longitudinally folding the web downstream of the web guiding apparatus and a cutting apparatus cutting the folded web into a first signature and a second signature. The web guiding apparatus includes rolls having axes of rotation aligned with a vertical direction that guide the web in a vertical on-edge orientation. The former receives the web in a vertical on-edge orientation and folding the web such that the folded web has a horizontal orientation and travels in a horizontal plane. The first and second signature each travel in the horizontal plane. A method of producing and delivering printed products is also provided. | 08-12-2010 |
20100201058 | Web conversion and collating apparatus and method - A web conversion and collating apparatus is provided. The web conversion and collating apparatus includes a cutting apparatus cutting a printed web into a first signature and a second signature, a transport conveyor for transporting the first signature and the second signature away from the cutting apparatus and a first diverter for diverting the first signature from the transport conveyor. The second signature passes by the first diverter on the transport conveyor. A first assembly receives the first signature from the first diverter and a second assembly downstream of the first assembly receives the second signature. A stack receiving conveyor downstream of the first assembly and the second assembly is also included. The stack receiving conveyor receives the first signature and the second signature and the first signature is stacked on the second signature on the stack receiving conveyor. A printing press and a method of producing and collating signatures are also provided. | 08-12-2010 |
20100201065 | Adjustable delivery web conversion apparatus and method - An adjustable delivery web conversion apparatus is provided. The adjustable delivery web conversion apparatus includes a variable cutting apparatus cutting a printed web into a first signature and a second signature, a first assembly receiving the first signature and a second assembly downstream of the first assembly receiving the second signature. Also included are a first delivery section for receiving the first signature from the first assembly, a second delivery section for receiving the second signature from the second assembly and a stack receiving conveyor for receiving the first signature and the second signature. The first delivery section is movable between a first delivery and a first non-delivery position. The second delivery section is movable between a second delivery position and a second non-delivery position. The stacking receiving conveyor is movable between a conveying position and a non-conveying position. A method of producing and delivering signatures is also provided. | 08-12-2010 |
20100201066 | Multiple delivery web conversion apparatus and method of producing and delivering variable printed products - A web conversion and delivery apparatus is provided. The web conversion and delivery apparatus comprises a first delivery for transporting printed products, a second delivery for transporting printed products and a cutting apparatus upstream of the first delivery and the second delivery. The cutting apparatus is capable during a first print job of cutting first images of the fixed image length into first printed products for delivery to the first delivery. The second delivery is inactive during the first print job. The cutting apparatus is capable during a second print job of cutting second images of the fixed image length into second printed products for delivery to the first delivery and the second delivery. The second printed products have a length that is different from the first printed products. A printing press and a method of producing and delivering printed products of variable lengths are also provided. | 08-12-2010 |
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 |
20110219970 | ADJUSTABLE DELIVERY WEB CONVERSION APPARATUS AND METHOD - An adjustable delivery web conversion apparatus is provided. The adjustable delivery web conversion apparatus includes a variable cutting apparatus cutting a printed web into a first signature and a second signature, a first assembly receiving the first signature and a second assembly downstream of the first assembly receiving the second signature. Also included are a first delivery section for receiving the first signature from the first assembly, a second delivery section for receiving the second signature from the second assembly and a stack receiving conveyor for receiving the first signature and the second signature. The first delivery section is movable between a first delivery and a first non-delivery position. The second delivery section is movable between a second delivery position and a second non-delivery position. The stacking receiving conveyor is movable between a conveying position and a non-conveying position. A method of producing and delivering signatures is also provided. | 09-15-2011 |
20120172187 | ADJUSTABLE DELIVERY WEB CONVERSION APPARATUS AND METHOD - An adjustable delivery web conversion apparatus is provided. The adjustable delivery web conversion apparatus includes a variable cutting apparatus cutting a printed web into a first signature and a second signature, a first assembly receiving the first signature and a second assembly downstream of the first assembly receiving the second signature. Also included are a first delivery section for receiving the first signature from the first assembly, a second delivery section for receiving the second signature from the second assembly and a stack receiving conveyor for receiving the first signature and the second signature. The first delivery section is movable between a first delivery and a first non-delivery position. The second delivery section is movable between a second delivery position and a second non-delivery position. The stacking receiving conveyor is movable between a conveying position and a non-conveying position. A method of producing and delivering signatures is also provided. | 07-05-2012 |
20140053745 | STRAIN CONTROLLED INFEED - Method and apparatuses for measuring and regulating the strain of a material web is disclosed. A material web is passed through a first and second non-slip roller pair. The first and second roller pair form a predefined span. In some embodiments, the angular positions of the first and second roller pair are monitored, and the phase angle between the roller pairs is calculated. The phase angle is directly related to the level of strain in the web, and the velocity of the web is controlled to maintain a phase angle which corresponds with the desired strain level. This maintains a constant strain level in the predefined span. In one embodiment, the strain entering a non-slip roll pair is controlled to be zero. The roll pair then introduces a predefined strain to the span entering subsequent processes. | 02-27-2014 |
20140331878 | SYSTEM AND METHOD FOR MEASURING UNTENSIONED PRODUCT LENGTH OF A WEB DURING PRODUCTION - A system and method is provided for determining an untensioned product length of a web moving through a printing press under tension. A controller determines a tensioned repeat length of the web in a span of the printing press while the web is moving through the printing press under tension; determines an elastic strain of the web in the span of the printing press while the web is moving through the printing press under tension; and calculates an untensioned product length of the web in the span of the printing press while the web is moving through the printing press under tension as a function of the tensioned repeat length and the elastic strain. | 11-13-2014 |
20140331880 | CLOSED-LOOP CONTROL OF UNTENSIONED PRODUCT LENGTH ON A WEB PRESS - A system and method is provided for closed loop control of an untensioned product length of a web moving through a printing press under tension during production. While a printing press is printing on the web, a controller receives a calculated untensioned product length L | 11-13-2014 |