Patent classifications
B41F13/00
NUMBER PRINTING APPARATUS
In order to provide a numbering and imprinting machine capable of minimizing the amount of wasted paper produced, the numbering and imprinting machine is provided with: a first-number inspection camera (124B) that is arranged downstream of the position of contact between an impression cylinder (112) and a first-number cylinder (113) of a first-number printing unit (111) in the direction of rotation of the impression cylinder (112), and images a first number printed on paper (W) held on the impression cylinder (112); a second number inspection camera (124C) that is arranged downstream of the position of contact between an impression cylinder (117) and a second-number cylinder (118) of a second-number printing unit (116) in the direction of rotation of the impression cylinder (117), and images a second number printed on paper (W) held on the impression cylinder (117); and a printing-press control device (10) that controls first- and second-number-cylinder throw-on and throw-off devices (38, 39) based on signals from the first- and second-number inspection cameras (124B, 124C) to cause the first-number cylinder (113) and the second-number cylinder (118) to make separating movements.
Method for generating letterpressed products
A method for producing a letterpressed printed card includes letterpressing a design into card stock, to create a card shell. The card shell has a positive image of the letterpressed design debossed into a front face of the card. After letterpressing the design, an image is printed onto the card shell, to produce the letterpressed printed card.
WEB-FED PRINTING MACHINE INCLUDING PROCESSING MODULES AND CARRIER MODULES
A web-fed printing machine that is highly variable in terms of its configuration, provides a high degree of positioning accuracy of processing modules and has a cost-efficient machine frame, includes a plurality of the processing modules fixed to the machine frame. Each respective processing module is advantageously fixed to the machine frame by a respective carrier module. Every carrier module includes two parallel longitudinal beams extending in the machine direction and two parallel crossbars which are oriented at right angles to the longitudinal beams and which interconnect the two longitudinal beams.
CONVERTING MACHINE WITH INVERSION TRANSFER MODULE
The present invention relates to a converting machine provided with an inversion transfer module (60). The converting machine comprises a printing module (16) comprising a first printing unit (17) arranged to print on a top side (S1) of a sheet (1), and a second printing unit (17) arranged to print a bottom side (S2) of the sheet. The inversion transfer module is arranged between the first printing unit and the second printing unit and comprises a first and a second inversion vacuum transfers (62, 64) which are configured to change the side of adherence and transportation of the sheet.
Intaglio printing press
There is described an intaglio printing press (1; 1*) comprising a plate cylinder (8) carrying one or more intaglio printing plates, the plate cylinder (8) receiving ink from an inking system (9, 20, 23; 20*, 23*) having a plurality of chablon cylinders (23; 23*) transferring ink directly or indirectly onto the plate cylinder (8), the intaglio printing press (1; 1*) comprising an adjustment system acting on the chablon cylinders (23; 23*) in order to compensate elongation of the one or more intaglio printing plates. The adjustment system comprises, for each chablon cylinder (23; 23*), an adjustable drive unit, which adjustable drive unit (25) is interposed between the chablon cylinder (23; 23*) acting as a rotating output body of the adjustable drive unit (25) and a driving gear (100) acting as a rotating input body of the adjustable drive unit (25). The adjustable drive unit (25) is designed to allow selected adjustment of a rotational speed of the chablon cylinder (23; 23*) with respect to a rotational speed of the driving gear (100). In an adjusting state of the adjustable drive unit (25), driving into rotation of the chablon cylinder (23; 23*) is adjusted over each revolution of the chablon cylinder (23; 23*) by means of an adjustment motor (300) of the adjustable drive unit (25). In a non-adjusting state of the adjustable drive unit (25), the adjustment motor (300) is inoperative and driving into rotation of the chablon cylinder (23; 23*) is performed exclusively mechanically via the adjustable drive unit (25), the chablon cylinder (23; 23*) rotating at a same rotational speed as the driving gear (100).
PRINTING METHOD AND PRINTING DEVICE
A printing unit has a printing form cylinder, an impression cylinder opposite the printing form cylinder and at least one substrate carrier apparatus with which a printing substrate is moved through between the printing form cylinder and the impression cylinder, wherein the substrate is printed in a printing region between the two cylinders. The substrate carrier apparatus is moved linearly during a uniform rotation of the two cylinders along a linearly extending track, limited in length by a longitudinal extension of the printing unit. The substrate carrier apparatus is accelerated from a resting start position to an operating speed, to be reached upon reaching the printing region, the substrate carrier apparatus is moved at least in the printing region at constant speed, and the substrate carrier apparatus is decelerated after leaving the printing region to a resting end position on the track.
Variable format offset printing machine having a central impression cylinder
Variable format offset printing machine having a central impression cylinder The printing machine comprises a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station comprises a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). Said blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdraw positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of said printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) comprised in an inclined first plane (P1) which does not comprise the axis of the central impression cylinder (1) at any of said multiple working positions for different diameters of the blanket and plate cylinders (2, 3).
Inking unit of a printing unit, printing unit and method for operating a printing unit
Inking units of a printing unit having at least one first inking unit roll and having a second inking unit roll which can be pivoted between the first inking unit roll and a third inking unit roll, at a distance from the first inking unit roll. A pivot drive for pivoting the second inking unit roll is provided with a drive assembly which is mechanically independent from the rotation of cylinders of the printing unit and also from inking unit rolls provided in the inking unit. A screwing down force for at least one of the first and third inking unit rolls can be set by one of predefining and changing a set point value relating to the drive force of the drive assembly remotely by the actuation of an adjusting assembly.
Intaglio printing press
There is described an intaglio printing press (1; 1*) comprising an intaglio cylinder (8) and an ink wiping system (10) with a rotating wiping roller assembly (11) contacting a circumference of the intaglio cylinder (8) for wiping excess ink from the surface of the intaglio cylinder (8), a rotational speed of the wiping cylinder being adjustable with respect to a rotational speed of the intaglio cylinder (8). The intaglio printing press (1; 1*) comprises an adjustable drive unit (25), which adjustable drive unit (25) is interposed between the wiping roller assembly (11) acting as a rotating output body of the adjustable drive unit (25) and a driving gear (100) coupled to the intaglio cylinder (8) and acting as a rotating input body of the adjustable drive unit (25). The adjustable drive unit (25) is designed to allow selected adjustment of a rotational speed of the wiping roller assembly (11) with respect to a rotational speed of the driving gear (100). In an adjusting state of the adjustable drive unit (25), driving into rotation of the wiping roller assembly (11) is adjusted by means of an adjustment motor (700) of the adjustable drive unit (25). In a non-adjusting state of the adjustable drive unit (25), the adjustment motor (700) is inoperative and driving into rotation of the wiping roller assembly (11) is performed exclusively mechanically via the adjustable drive unit (25), the wiping roller assembly (11) rotating at a defined rotational speed with respect to the rotational speed of the intaglio cylinder (8).
Printing unit comprising an alignment device, non-impact printing position, and curing device
Examples include a printing unit having a first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, along a transport path, downstream from the first tool-dependent printing nip, a first alignment cylinder and a first non-impact printing position to which at least one first print head is assigned. The printing unit further includes, along the transport path, downstream from the first non-impact printing position, a first curing device having a first curing area assigned thereto. The printing unit, downstream from the at least one first alignment cylinder, including at least one second alignment cylinder and a second non-impact printing position, to which a second print head is assigned. The printing unit, downstream from the second non-impact printing position, comprising a second curing device having a second curing area assigned thereto.