Abstract: A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.

Abstract: A device for forming book blocks is disclosed. The device includes a first conveying device which accepts signatures printed in a printing press located upstream. The device further includes at least one signature switch assigned to the first conveying device, multiple second conveying devices, and multiple book block formers, where each second conveying device is assigned a book block former and where each book block former can be supplied with signatures belonging to the same book block dependent on a position of the or each signature switch. The device further includes multiple placers, where each book block former is assigned a placer which accepts the book blocks formed in the respective book block former, and a third conveying device, onto which the book blocks can be placed with the help of the placers and which feeds the book blocks to a delivery device.

Abstract: A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.

Abstract: A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.

Abstract: A web press, in particular a variable format book web press, variable format newspaper web press, or variable format periodical web press, has printing units having printing devices or groups of printing devices for applying ink to a paper web. The printing devices or groups of printing devices are constructed without rotating impression cylinders and are designed to apply ink to the paper web in a noncontacting manner.

Abstract: A cross cutting device of a reel-fed printing press for cutting copies off a printed substrate web through cross cutting of the substrate web is disclosed. The cross cutting device includes at least two cross cutting modules each of which include a cutting cylinder and a counterpart cylinder interacting with the cutting cylinder. Each of the cross cutting modules can be displaced between a working position and a rest position.

Abstract: A folding device of a printing press for folding signatures is disclosed. The folding device includes a folding blade cylinder, via which signatures to be folded can be fed to a jaw cylinder arranged downstream of the folding blade cylinder subject to forming transverse folds. A cylinder is arranged upstream of the folding blade cylinder, on which the signatures can be collected in any number prior to the forming of the transverse folds.

Abstract: A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.

Abstract: A device for regulating the application of dampening solution in a printing press is disclosed. The device includes a dampening solution quantity adjustment apparatus, where a quantity of dampening solution applyable to a printing press cylinder is adjustable by the dampening solution quantity adjustment apparatus. An ink measuring device detects printing parameters of an ink applied to a printing substrate selectively and/or over an entire width of the printing substrate. A control and regulating device analyzes detected printing parameters and controls the dampening solution quantity adjustment apparatus.

Abstract: A printing unit of a printing press and a printing roller or an impression cylinder of a printing press is disclosed. The printing roller or the impression cylinder has a first and a second base element (1, 2) and a hollow cylinder (3) made of a fiber-reinforced material.

Abstract: A web press, in particular a variable format book web press, variable format newspaper web press, or variable format periodical web press, has printing units (102a, 102b) having printing devices (109, 109a, 109b, 109c, 109d) or groups (119, 119a, 119b, 119c, 119d) of printing devices (109, 109a, 109b, 109c, 109d) for applying ink to a paper web (108). The printing devices (109, 109a, 109b, 109c, 109d) or groups (119, 119a, 119b, 119c, 119d) of printing devices (109, 109a, 109b, 109c, 109d) are constructed without rotating impression cylinders and are designed to apply ink to the paper web (108) in a noncontacting manner.

Abstract: A folding apparatus and method for a web-fed rotary press having a first folding jaw cylinder, a cross cutter by which a first web ribbon comprising a first quantity of printing stock webs is fed to the cross cutter and is cross cuttable into first print products by the cross cutter and a collection cylinder by which the first print products are subsequently cross folded by the collection cylinder and the first folding jaw cylinder. The apparatus also includes an auxiliary cross cutter which cross cuts a second web ribbon comprising a second quantity of printing stock webs into second print products. A transfer device is used to transfer the second print products produced from the second web ribbon to the collection cylinder. As a result, a first print product and a second print product are combined on the collection cylinder and are cross folded together when transferred to the first folding jaw cylinder.

Abstract: A printing unit for a roll-fed printing press having at least two printing mechanisms, wherein a first printing mechanism imprints a first side of a web-shaped substrate and a second printing mechanism imprints a second side of the web-shaped substrate opposite to the first side. The first printing mechanism and second printing mechanism each have a form cylinder, a transfer cylinder, an inking unit, and preferably a dampening unit. The transfer cylinders of the first printing mechanism and the second printing mechanism roll on one another while forming a printing gap for the substrate to be imprinted. A main driving motor is associated with the first printing mechanism or the second printing mechanism. A braking motor is associated with the printing mechanism with which the main driving motor is not associated.

Abstract: A sleeve, in particular a rubber-blanket sleeve, for a printing press is disclosed. The sleeve having a construction which has at least two layers, having an inner layer which is configured as a carrier layer and an outer layer which is configured as a covering layer and serves for pressure transfer, the sleeve having a hollow-cylindrical design with a cylindrical inner surface and a cylindrical outer surface. The inner layer which is configured as a carrier layer is convexly or concavely curved on the radially outer side, a layer which adjoins the carrier layer having a curvature on a radially inner side which is complementary to the curvature of the radially outer side of the carrier layer.

Abstract: A driven component, in particular a printing couple or folding unit, of a printing press, having several rotating elements, in particular cylinders or rollers, wherein at least two rotating elements are assigned to intermeshing drive gears, is disclosed. The drive gear of a first rotating element, which meshes with the drive gear of a second rotating element, is assigned a co-rotating gear, which is connected to the drive gear of the first rotating element via at least one spring element or bending element, which extends in the axial direction of the first rotating element. The co-rotating gear can be rotated with respect to the drive gear in such a way in the circumferential direction that a meshing between the two intermeshing drive gears that is affected in principle by backlash can be kept free of backlash.

Abstract: A web press with at least one printing couple, where the at least one printing couple or each printing couple is provided with a form cylinder, a transfer cylinder, an inking couple, and preferably a dampening unit, and a transfer system is assigned to the transfer cylinder, and a printing form system is assigned to the form cylinder. The transfer system assigned to the transfer cylinder of the printing couple or each printing couple is constructed with several parts which are disposed along the axial direction of the transfer cylinder.

Abstract: An automated method is provided for carrying out a production change, which is specific to the printing plate, on a printing press. After a first print job is printed on a printing press, the printing of the first print job is stopped automatically after a predefined print run level has been reached or another termination criterion for the first print job has occurred. Parameters required for printing a second print job which follows the first print job are loaded automatically by the printing press. Before or after the parameters of the second print job are loaded, a printing plate change is automatically carried out on the printing press, thus achieving production readiness for the second print job. The second print job is then either started automatically, or a production readiness signal for the second print job is generated automatically.

Abstract: An automated method is provided for carrying out a production change, which is specific to the printing plate, on a printing press. After a first print job is printed on a printing press, the printing of the first print job is stopped automatically after a predefined print run level has been reached or another termination criterion for the first print job has occurred. Parameters required for printing a second print job which follows the first print job are loaded automatically by the printing press. Before or after the parameters of the second print job are loaded, a printing plate change is automatically carried out on the printing press, thus achieving production readiness for the second print job. The second print job is then either started automatically, or a production readiness signal for the second print job is generated automatically.

Abstract: A web-fed rotary offset press is disclosed. The press is designed for using sleeve technology, it being possible for sleeve-shaped rubber blankets to be pushed onto the rubber-covered cylinders in the axial direction. Finite printing plates are placed onto the plate cylinders in a conventional manner, it being possible to fix the ends of the finite plates in slots of the plate cylinders. Rubber-covered cylinders are used which have a double circumference, while the plate cylinders have a single circumference. As a result, the rigidity of the cylinder system is increased substantially, with the result that a stable web run and in-register printing are possible in wide machines over 1400 mm, without it being necessary for modifications to be performed on the cylinders or the compressibility or thickness of the rubber layers of the sleeves to be changed in the axial direction.

Abstract: A sleeve, in particular a rubber-blanket sleeve, for a printing press is disclosed. The sleeve having a construction which has at least two layers, having an inner layer which is configured as a carrier layer and an outer layer which is configured as a covering layer and serves for pressure transfer, the sleeve having a hollow-cylindrical design with a cylindrical inner surface and a cylindrical outer surface. The inner layer which is configured as a carrier layer is convexly or concavely curved on the radially outer side, a layer which adjoins the carrier layer having a curvature on a radially inner side which is complementary to the curvature of the radially outer side of the carrier layer.