DE102016208943B4 - Cylinder of a printing press with a rotary inlet - Google Patents

Abstract

Cylinder of a printing press, with at least one rotary insertion (22) arranged on one of its end faces at least for introducing a fluid into the cylinder (07) and into a plurality of hollow bodies (27; 28; 35) arranged in or on the cylinder (07), the relevant one Rotary insertion (22) coaxially has a rotatable inner part (43) and a non-rotatably held outer part (44), the hollow bodies (27; 28; 35) arranged in or on the cylinder (07) each being changeable in terms of their volume and during a rotation of the cylinder (07) are acted upon or at least capable of being acted upon with the fluid, wherein the respective volume of the respective hollow body (27; 28; 35) can be changed by increasing or reducing an amount of fluid arranged inside the relevant hollow body (27; 28; 35). , wherein the relevant rotary insertion (22) has a channel (26) arranged in its center, characterized in that the rotary insertion (22) is designed to have multiple channels, the relevant rotary insertion (22) in addition to its channel (26) arranged in its center has at least one further channel (26) outside its center, the fluid being guided or at least able to be guided through the plurality of channels (26) of the rotary insert (22) in question, each of these channels (26) having a connection (22) on the rotary insert (22). 64; 65; 66; 67; 68) for introducing and/or discharging the respective fluid, wherein during the rotation of the cylinder (07), the fluid guided through the channel (26) arranged in the center of the relevant rotary insertion (22) is permanently pressurized and that through the at least a channel (26) arranged outside the center of this rotary insertion (22) or at least guideable fluid is temporarily and/or periodically depressurized.

Description

The invention relates to a cylinder of a printing press with a rotary introduction.

A printing material is provided with a printed image within a printing process in the printing units of a printing press, in such a way that a printing form clamped onto a printing forme cylinder is inked and the resulting printed image is transferred to the printing material guided onto a printing cylinder and the printed image is the result of the ongoing printing process Expansion of the printing material is adjusted. If in the area of processing sheet-shaped substrate, for example when printing sheet-shaped printing material, i.e. H. a printed sheet, this substrate is processed through several processing stages one after the other, the printing material is printed one after the other, for example, by several printing units and/or coating units. For example, the substrate can be deformed by rolling out the substrate into cylindrical gaps and/or by swelling of the substrate due to liquids, such as components of printing inks and/or dampening solution. This can result in a deviation between the positions related to the substrate at which the individual processing stages act on the substrate. In the case of, for example, multi-color and/or multi-page printing, registration errors and/or register errors can result. An exact match of a printed image on the front and back of a material printed on both sides is called a register (DIN 16500-2). In multi-color printing, one speaks of register (DIN 16500-2) when individual print images of different colors are put together to form an image in exactly the same way. The printout of the color register is also used as an equivalent to the register.

When printing on an exemplary sheet-fed printing machine, coating agent, for example printing ink, is transferred from a forme cylinder to a transfer cylinder and from the transfer cylinder to a printing material held by an impression cylinder. The geometric dimensions of the printing sheet change due to the printing ink and/or dampening solution and the pressure in the printing gap. For example, the printed sheet becomes longer in relation to a transport direction of the printing material and/or a circumferential direction of the impression cylinder and/or initially wider at its trailing end in relation to a transverse direction oriented transversely to the transport direction of the printing material and/or an axial direction of the impression cylinder. If the printing press consists of several printing units, then this happens, for example, more or less pronouncedly in each printing unit, so that a printed image printed by subsequent printing units appears deformed in the circumferential direction, in particular shorter and/or narrower, compared to the previously printed printed images. This effect can, for example, be designed differently for each of the printing units, which results in a high probability of register errors and/or register errors.

In the DE 10 2012 207 103 A1 A solution to compensate for the longitudinal expansion of the printing material is presented. Here the tensile stress of the clamped pressure plate is increased and it is thus stretched in the longitudinal direction.

Through the DE 10 2012 207 111 B3 a method for arranging a printing forme on a plate cylinder is known, wherein the plate cylinder has at least one channel in which at least one front clamping device and at least one rear clamping device are arranged, the rear clamping device being part of at least one carriage which is inside by means of at least one clamping drive of the at least one channel is arranged to be movable along a clamping path towards the at least one front clamping device, wherein in a clamping step at least one rear stop actuating element, which is mounted in a bearing that is stationary relative to the cylinder barrel, is moved relative to the cylinder barrel into a target stop position and wherein then the at least one carriage is moved by means of the at least one clamping drive together with the rear end of the printing form clamped in the at least one rear clamping device towards the at least one front clamping device and the first channel wall until at least one stop body touches the at least one rear stop positioning element and where then a fixing device is clamped and holds the at least one carriage in its position.

From the DE 10 2008 023 728 A1 A solution is known in which the clamping rail holding the end of the pressure plate is divided into clamping segments. To compensate for the expansion of the printing material in the axial direction of the plate cylinder, the clamping segments are moved outwards.

From the DE 10 2007 057 455 A1 a cylinder winding manipulation device is known which allows automatic correction of geometric deviations in the printed image. This is done by using an image inspection device for the geometric measurement of printed substrates, which is connected to the machine control of the printing press. The printing press has a computer that controls the knives Processes the results of the image inspection device and is able to carry out a target/actual value comparison. If deviations are detected, actuators are activated so that the detected deviations can be minimized. Several actuators are arranged on the cylinder so that the cylinder elevator can be specifically deformed across the entire printed image. These actuators are partly electrically driven and can have rotary electric motors. Actuators are also proposed that have piezoelectric drives, electromagnetic linear drives or electric linear motors. Actuators that work at least partially pneumatically are also mentioned.

Through the DE 42 35 393 A1 a method for register adjustment on sheet-fed printing machines is known, in particular for circumferential, side, narrow printing, wider printing and/or diagonal register adjustment, whereby the respective register is optically detected mechanically on the printing material and the detection result is used for automatic mechanical register adjustment. In order to determine the influences on the printing material (e.g. sheet elongation, rolling out the sheet transversely to the print, narrower and wider printing), marks that are preferably distributed over the base area of the sheet are optically recorded and their positions are evaluated, with the marks e.g. B. are arranged in corner areas of the corresponding arch.

Through the DE 41 28 994 C2 a clamping and clamping device for printing machines is known, with which a printing plate clamped on a cylinder at one end is clamped at the other end by two strips and tensioned by a clamping element, with a clamping strip and a clamping strip arranged opposite clamping surfaces in the radial direction for detecting a have an angled pressure plate, the clamping bar being designed as a pivotable double lever, the clamping bar being pivotable against the force of tension springs acting in the tensioning direction by means of at least one adjusting element, the clamping bar being designed as a pivotable double lever connected to the clamping bar, which counteracts the clamping surface by clamping springs the corresponding clamping surface of the clamping bar is pressed with the clamping force for holding the pressure plate and the clamping bar has a holding element which cooperates with a fixed stop in such a way that the clamping bar is pivoted against the force of the clamping springs when the adjusting elements are actuated, in a machine with several printing units, the force of the tension springs of a printing unit is preferably modified in comparison to the force of the tension springs of the subsequent printing unit in such a way that the printing plates have a difference in length which corresponds to the difference in length of the printing material caused by stretching.

Through the US 2005/0257706 A1 a cylinder of a printing press is known with a device for arranging a tubular sleeve on this cylinder, an intermediate layer arranged between the outer lateral surface of the cylinder and the inner lateral surface of the sleeve being deformable by means of a negative pressure exerted by a channel system formed in the cylinder.

Through the EP 2 057 018 B1 a cylinder of a printing press is known, with at least one rotary insert arranged on one of its end faces at least for introducing a fluid into the cylinder and into several hollow bodies arranged in or on the cylinder, the hollow bodies arranged in or on the cylinder each being changeable in terms of their volume and during a Rotation of the cylinder is acted upon or at least can be acted upon by the fluid, wherein the respective volume of the respective hollow body can be changed by increasing or reducing an amount of fluid arranged inside the relevant hollow body, the rotary insertion in question having a single channel arranged in its center.

Through the DE 10 2004 021 606 A1 a rotary transformer for introducing a liquid or gaseous medium into a rotating part of a printing press is known, with a rotor which rotates together with the printing press part, and a stator which is arranged in a rotationally fixed manner, at least a first channel section being provided in the stator, which is from Medium can flow through, and at least one second channel section is provided in the rotor, which can be connected to the first channel section for introducing the medium into the printing machine part, with axially directed and opposite contact surfaces being provided on the rotor and on the stator, which are used to insert the Medium in the printing machine part come into contact with one another in such a way that the second channel section connects to the first channel section in a pressure-tight manner.

Through the DE 41 37 948 A1 a printing plate clamping device for a printing press is known, in which a front collet bed and a rear collet bed are mounted in a recess formed axially in a plate cylinder and gripping or clamping plates are attached to the collet beds so that they can move over an angle, in a floor surface or Sole of the recess an opening is provided, printing plate tensioning fluid cylinders and/or a printing plate stretching fluid cylinder and/or a printing plate twisting motor is/are arranged extending through the opening, fluid control valves with the fluid cylinders and also with a pressure fluid source via a line extending through a plate cylinder shaft are connected and the motor is connected to a control unit via electrical lines which run through the other plate cylinder shaft.

Through the EP 1 542 873 B1 a cylinder of a printing press is known, wherein the cylinder has at least one actuating means which can be acted upon by a pressure medium and a control valve which controls the application of the pressure medium to the actuating means, an actuating means arranged in the cylinder and connected to the control valve being provided, the control valve being connected to the actuating means can be brought into a switching position with a flow path open for the pressure medium, the actuating means being actuable by an actuating means arranged outside the cylinder, the actuating means being designed as an electromagnetic actuating means, the actuating means arranged outside the cylinder actuating this electromagnetic actuating means by means of a electric or magnetic field, the control valve actuated by the actuating means remaining in a self-holding switching position with the flow path open for the pressure medium without a permanent effect on the actuating means, at least two actuating means which can be acted upon by the pressure medium being provided, with at least a first supply line for the Supply of the pressure medium to the cylinder is provided, with lines branching off from the first supply line being provided in the cylinder for distributing the pressure medium to the actuating means, a control valve being provided in the lines to at least two actuating means, these actuating means being operable individually and independently of one another .

Through the EP 1 644 192 B1 a method for influencing the fan-out effect by means of a device for influencing the fan-out effect and for influencing the page register by means of a page register control/regulation is known, in which the image of a sensor is first evaluated in order to influence the fan-out effect which detects the print image on a scanning width of at least a quarter of the web width, and if there is a deviation from a setpoint specification, an actuating command is transmitted to an actuator to influence the fan-out effect, whereby to determine the fan-out, pixels of two print image sections of a color separation of a specific one Color in terms of its axial position with a reference position, in particular with a reference relative position, for the pixels of the two printed image sections are compared, the position of defined pixels or image areas of the color separation of this color from image data from the pre-press being used as the reference position, and whereby for correction of the fan-out effect and to correct the side register using measured values from the same sensor.

Through the EP 0 812 683 A1 A sheet-fed printing machine is known in which forme cylinders have their own individual drives that are mechanically decoupled from a main drive. Their speed is, for example, tracked to a speed of a main drive of the sheet-fed printing press.

By means of such individual drives, it is possible to reduce or prevent errors in the register and/or register, which are based on changes in length of the substrate, by specifically producing a difference between a peripheral speed of the cylinder elevator and a peripheral speed of the substrate and thus, for example, specifically lengthening a printed image or shortened. For this purpose, for example, a speed ratio between a forme cylinder and an associated impression cylinder is varied, for example cyclically.

An example is shown below in which the forme cylinder and impression cylinder in the relevant printing unit essentially have the same circumference. If the circumferential length of the impression cylinder is a multiple of the circumferential length of the forme cylinder, the angular velocity of the forme cylinder is to be assumed to be essentially larger by a corresponding integer factor than the angular velocity of the corresponding impression cylinder. For example, an angular velocity of a forme cylinder is reduced compared to an angular velocity of a transfer cylinder or at least an impression cylinder as long as a cylinder elevator of the forme cylinder is in contact with the transfer cylinder and/or as long as the transfer cylinder is in contact with the substrate. As a result, a printed image is displayed elongated on the printing material, for example in order to counteract elongation of the printed image already applied to the substrate due to preceding cylinder gaps. Thereafter, to compensate, the angular velocity of this forme cylinder is preferably increased compared to the angular velocity of the transfer cylinder or at least of the impression cylinder, as long as the cylinder lift of this forme cylinder does not move with the transfer cylinder due to a cylinder channel of the forme cylinder and/or a cylinder channel of the transfer cylinder is in contact and/or as long as the transfer cylinder is not in contact with the substrate due to the cylinder channel of the transfer cylinder and/or the position or shape of the impression cylinder. After a complete revolution, the relative angular position of the two cylinders is preferably identical again. This means that in particular unintentional errors regarding the print lengths of the print images of the individual printing colors can be specifically compensated for.

For example, in the case of forme cylinders with a circumference of several times a section length of the substrate, one complete revolution of the forme cylinder can result in a multiple cycle of increased and reduced angular velocities and thus a multiple assumption of the original relative angular position.

When changing a speed ratio between two adjacent cylinders, for example between a forme cylinder on the one hand and a transfer cylinder on the other hand, or a transfer cylinder on the one hand and an impression cylinder on the other, it is in any case necessary that two directly adjacent cylinders rotate at temporarily different angular velocities and different circumferential velocities. Such adjacent cylinders usually have defined rolling surfaces, which each roll on one another and which ensure a constant position of the rotation axes of these cylinders relative to one another, especially in situations in which a channel of one of these cylinders is opposite a lateral surface or a channel of another of these cylinders . This is intended to prevent vibrations caused by sudden changes in force, which would occur at the beginning and end of a channel without these rolling surfaces. So-called bearer rings are usually used as these rolling surfaces. However, when the speed ratio changes and the circumferential speeds change relative to one another, there is no longer pure rolling, but also sliding contact between these rolling surfaces.

The object of the invention is to create a cylinder of a printing press with a rotary insertion.

The object is achieved according to the invention by a cylinder of a printing press with the features of claim 1. The respective dependent claims relate to advantageous developments and/or refinements of the respective solution found.

Advantages that can be achieved with the invention are shown in connection with the following description.

Embodiments of the invention are shown in the drawings and are described in more detail below.

• 1 eine schematische Darstellung mehrerer Druckwerke einer Bogendruckmaschine;
• 2 eine schematische Darstellung eines Schnitts durch einen Formzylinder mit einer in einem Kanal angeordneten Spannvorrichtung;
• 3 eine schematische Darstellung einer Draufsicht auf einen Kanal eines Formzylinders mit einer in dem Kanal angeordneten Spannvorrichtung;
• 4 eine schematische Darstellung eines Schnitts durch einen Kanal eines Formzylinders mit einer anderen in dem Kanal angeordneten Spannvorrichtung;
• 5 eine schematische Darstellung eines Schnitts durch einen Kanal eines Formzylinders mit einer anderen in dem Kanal angeordneten Spannvorrichtung;
• 6 einen Druckbogen mit einem darauf ausgebildeten oder zumindest auszubildenden Druckbild;
• 7 eine in dem Kanal an einer Position angeordnete Spannvorrichtung;
• 8 einen Teilschnitt der durch eine Führungsschiene zwangsgeführten Spannvorrichtung;
• 9 in den Teilfiguren a und b eine Darstellung der an einer Selbsthemmung der Spannvorrichtung beteiligten Kräfte;
• 10 einen Teilschnitt des Formzylinders mit der in dem Kanal in Selbsthemmung angeordneten Spannvorrichtung;
• 11 ein vereinfachtes Blockschaltbild zur Generierung von Korrekturwerten;
• 12 eine Dreheinführung;
• 13 ein Längsschnitt durch die in der 11 dargestellte Dreheinführung;
• 14 einen Schaltplan, insbesondere einen Pneumatikplan;
• 15 eine Programmmaske zur Einstellung fernbetätigbarer Ventile.

Show it:

• 1 a schematic representation of several printing units of a sheet-fed printing press;
• 2 a schematic representation of a section through a forme cylinder with a clamping device arranged in a channel;
• 3 a schematic representation of a top view of a channel of a forme cylinder with a clamping device arranged in the channel;
• 4 a schematic representation of a section through a channel of a forme cylinder with another clamping device arranged in the channel;
• 5 a schematic representation of a section through a channel of a forme cylinder with another clamping device arranged in the channel;
• 6 a printed sheet with a printed image formed or at least to be formed thereon;
• 7 a tensioner disposed at a position in the channel;
• 8th a partial section of the clamping device which is positively guided by a guide rail;
• 9 in the partial figures a and b a representation of the forces involved in a self-locking of the tensioning device;
• 10 a partial section of the forme cylinder with the self-locking clamping device arranged in the channel;
• 11 a simplified block diagram for generating correction values;
• 12 a filming introduction;
• 13 a longitudinal section through the in the 11 shown turning introduction;
• 14 a circuit diagram, in particular a pneumatic diagram;
• 15 a program mask for setting remote-controlled valves.

A processing machine for sheet-shaped substrate, in particular a sheet processing machine, preferably has, for example a substrate feed device called a sheet feeder and/or preferably a feed device called a sheet feeder, for example, and/or preferably a substrate delivery device called a sheet delivery device, for example. The processing machine preferably has at least one processing stage, also referred to as a work, and more preferably several processing stages, also referred to as a work. For example, the at least one work is arranged between the substrate supply device and the substrate delivery device. Preferably, this is at least one work as printing work 01; 02; 03, coating unit, drying unit, calendering unit or film transfer unit or designed in another suitable manner.

A sheet processing machine designed as a printing machine, in particular a sheet-fed printing machine, is described below as an example. However, the invention can be transferred to other sheet processing machines which have several cylinders 07, preferably forme cylinders 07, in particular printing forme cylinders 07, each equipped and/or able to be equipped with at least one cylinder elevator 08. In the case of cylinder elevators 08 designed, for example, as plates, in particular printing plates, such forme cylinders 07 are preferably designed as plate cylinders 07. At least one of the works is preferred as printing work 01; 02; 03, in particular offset printing unit 01, 02, 03. Alternatively or additionally, at least one coating unit or several coating units can be arranged downstream. In the case of several printing units 01; 02; 03, the arrangement of one or more coating units between the printing units can also be provided. The cylinder elevator 08 is, for example, a printing forme 08 or a varnish plate 08 or a varnish cloth 08. The cylinder elevator 08 can also have the shape of a sleeve, that is to say it can be closed in the circumferential direction B.

The ones in the 1 Sheet processing machine shown by way of example, in particular sheet-fed printing machine, preferably has several units arranged in particular in a row, in particular printing units 01; 02; 03 on. Each of these works, especially printed works 01; 02; 03 preferably has at least one substrate-carrying cylinder 04, which is preferably designed as a printing material-carrying cylinder 04, in particular as a sheet-carrying cylinder 04 and/or as an impression cylinder 04. Each of these works, especially printed works 01; 02; 03 further preferably also has at least one sheet transport device 05, which is preferably designed as a transfer drum 05 and more preferably as a transfer drum 05. Alternatively or additionally, the at least one sheet transport device 05 is designed as a transport cylinder and/or as a swing gripper. The at least one sheet transport device 05 preferably has at least one sheet holding element and more preferably several sheet holding elements. The at least one sheet holding element is preferably designed as at least one gripper and/or at least one suction cup. Preferably, each of the counter-pressure cylinders 04 has at least one and preferably exactly one z. B. assigned to a cylinder 06 designed as a transfer cylinder 06, which is designed, for example, as a blanket cylinder 06. Each work preferably has at least one and more preferably exactly one cylinder 07 designed as a forme cylinder 07. The at least one forme cylinder 07 is preferably designed as a printing forme cylinder 07, in particular as a plate cylinder 07. The forme cylinder 07 is preferably in contact with the transfer cylinder 06, particularly during a printing operation. However, other methods are also conceivable in which the forme cylinder 07 comes into direct contact with the substrate, for example in a flexographic printing process and/or in an embossing process and/or in a perforating process and/or in a punching process and/or in an appropriate painting process.

Preferably, at least one inking unit 09 is provided, which serves in particular to color at least one cylinder elevator 08 arranged on the forme cylinder 07. The at least one inking unit 09 preferably has at least one and more preferably several inking unit rollers 11 and at least one and preferably several inking rollers 10 which are in contact and/or can be brought into contact with the cylinder elevator 08 in question. For example, the forme cylinder 07 is assigned a dampening unit 12, which preferably has at least one dampening roller 13, for example also several dampening rollers 13.

For example, the at least one cylinder elevator 08 is designed as a printing form 08, in particular as a printing plate 08. In particular, in order to be able to arrange and/or fix the at least one cylinder elevator 08 on the forme cylinder 07, the forme cylinder 07 preferably has at least one cylinder recess 14, which can be used, for example Cylinder channel 14 is formed and / or is referred to as clamping channel 14. At least one fastening device 15 is preferably arranged within this at least one cylinder recess 14. The at least one fastening device 15 is designed, for example, as a holding device and/or as a clamping device 15. The at least one fastening device 15 preferably serves at least to hold the at least one cylinder elevator 08 on the lateral surface of the relevant forme cylinder 07. In particular if the at least one fastening device 15 is at least also designed as a clamping device 15, this preferably at least also serves to clamp the at least one cylinder elevator 08 on the relevant forme cylinder 07.

The at least one fastening device 15 preferably has at least one front fastening means 16. The at least one front fastening means 16 preferably serves to fasten an end 17 of the cylinder elevator 08 which leads at least in a printing operation. For example, the at least one front fastening means 16 is designed as at least one front clamping means 16. The at least one fastening device 15 preferably has at least one rear fastening means 18. The at least one rear fastening means 18 preferably serves to fasten an end 19 of the cylinder elevator 08 that trails at least during printing operation. For example, the at least one rear fastening means 18 is designed as at least one rear clamping means 18. Preferably, at least one movable clamping element 20 is arranged, which is further preferably arranged to be movable together at least together with the at least one rear fastening means 18. The at least one rear fastening means 18 is even more preferably simultaneously designed as at least one movable clamping element 20.

A transverse direction A is preferably a direction A that is oriented transversely to a transport direction of the substrate, in particular a horizontal direction A. The transverse direction A is preferably parallel to an axial direction A defined, for example, by an axis of rotation 47 of the forme cylinder 07. In particular for tensioning the cylinder elevator 08 in question in the circumferential direction B of the forme cylinder 07, the at least one clamping element 20 is preferably arranged movable and/or displaceable orthogonally to the axial direction A. Preferably, a plurality of clamping elements 20 are arranged one after the other in a row in relation to the axial direction A. More preferably, the at least one clamping device 15 has several, in particular at least two and more preferably at least three clamping elements 20, which are preferably arranged one after the other with respect to the axial direction A. Preferably, these multiple clamping elements 20 serve to clamp a common cylinder elevator 08. Preferably, the at least one clamping element 20 is arranged to be movable in and/or against the axial direction A, in particular relative to a bale 46 of the forme cylinder 07 and/or to each other. In one embodiment, a central clamping element 20 relative to the axial direction A is arranged in a fixed manner with respect to the axial direction A relative to the bale 46 of the forme cylinder 07.

With the fastening device 15, different cylinder lifts 08 can be arranged on the forme cylinder 07, for example manually and/or at least partially or preferably completely automated, for example by a control executed by a control computer, in particular controlled and/or regulated by a machine control and in particular by means of at least one drive. For example, to execute a z. B. from a production planning system to the printing press, the cylinder elevator 08 provided for this purpose, in particular a printing plate 08, is provided, for example, in an elevator storage 21 on the printing press and, for example, is fed or at least can be fed to the forme cylinder 07, preferably automatically, via a feed path. The elevator storage 21 is, for example, as a disk cassette 21 or as a printing form magazine of a respective printing unit 01; 02; 03 trained. The feed path is designed, for example, as a feed shaft. Preferably, the end 17 of the cylinder elevator 08, which leads at least during printing operation, is first introduced into the cylinder recess 14 of the relevant forme cylinder 07 and in particular fastened, in particular clamped, by means of the at least one front fastening means 16. Then the cylinder elevator 08 is placed on a lateral surface of the bale 46 of the forme cylinder 07, for example by the forme cylinder 07 performing a rotary movement about its axis of rotation 47. The end 19 of the cylinder elevator 08, which trails at least during printing operation, is fastened, for example clamped, to the at least one rear fastening means 18 and/or to the at least one clamping element 20. Depending on the ratio of the length of the cylinder elevator 08 in the circumferential direction B to the circumference of the forme cylinder 07, the leading end 17 during printing operation and the trailing end 19 of the cylinder elevator 08 during printing operation are held by a front fastening means 16 and a rear fastening means 18, which are in one the same or in different cylinder recesses 14 are arranged.

In the case of a printing press, a cylinder lift 08 clamped onto the forme cylinder 07 is preferably colored with paint and/or varnish. A printed image 32 that is created and is to be transferred on the cylinder elevator 08 is transferred directly or preferably indirectly by means of the transfer cylinder 06 onto the substrate guided by the impression cylinder 04, e.g. B. transfer a printed sheet 31. A register measurement is preferably carried out. If a register measurement is mentioned above and/or below, then this is to be understood in particular as a measurement of a register and/or a measurement of a register or color register. The printed image 32 created and to be transferred on the cylinder elevator 08 and/or a printed image 32 applied to the substrate and/or the cylinder elevator in question Train 08 itself is or are preferably adapted to the changes in the substrate resulting from the ongoing printing process. This preferably happens both with respect to the axial direction A or transverse direction A as well as with respect to the circumferential direction B of the relevant cylinder 07, in particular forme cylinder 07.

A change in the dimension of the substrate in its transport direction and/or parallel to the circumferential direction B is preferred by changing the dimension and in particular an expansion of at least one corresponding cylinder elevator 08 in the circumferential direction B and/or by a controlled and/or regulated rotational movement of the forme cylinder 07 compensated, with a course of an angular position of the relevant printing forme cylinder 07 relative to an angular position of a cylinder 04; 06 is controlled or regulated. The at least one rear fastening means 18, which is preferably designed as at least one clamping element 20, preferably each has at least one outer clamping element 23, for example designed as an outer clamping strip 23, and at least one inner clamping element 24, for example designed as an inner clamping strip 24. Preferably, the at least one inner clamping element 24 and the at least one outer clamping element 23 serve to fasten the end 19 of the cylinder elevator 08 in question, which trails at least during printing operation.

At least one support element 25 is preferred; 28 arranged, by means of which the at least one clamping element 20 is supported and/or at least can be supported in the circumferential direction B relative to the bale 46 of the forme cylinder 07 and/or in particular relative to a channel wall 29 of the cylinder channel 14. The at least one support element 25; 28 is designed, for example, as at least one clamping spindle 25 and/or as at least one hollow body 28 whose volume can be changed, for example as at least one pneumatic support element 28, in particular as at least one clamping hose 28. The at least one support element 25; 28 is, for example, manually and/or at least partially or preferably completely automated, for example controlled and/or regulated by a control implemented in the control computer, in particular by the machine control, and in particular can be actuated by means of at least one drive.

Support elements 25, each designed as a clamping spindle 25, preferably have at least one thread which interacts with a thread of a respective clamping element 20 and/or with a thread that is stationary relative to the barrel 46 of the forme cylinder. The threads preferably convert a rotational movement about an axis of the clamping spindle 25 into a directed movement of the corresponding clamping element 20 relative to the bale 46 of the forme cylinder 07, in particular with at least one component in the circumferential direction B or opposite thereto. As a result, the cylinder elevator 08 can be tensioned and/or stretched and/or relaxed in relation to the circumferential direction B.

Support elements 28 designed as hollow bodies 28, each of which can be changed in volume, are preferably arranged in relation to the circumferential direction B between a channel wall 29 and the at least one clamping element 20. By increasing the amount of a medium, in particular a fluid, for example air, arranged inside the corresponding hollow body 28, the hollow body 28 preferably expands in particular in the circumferential direction B and thereby moves the at least one clamping element 20 with at least one component counter to this circumferential direction B, in particular away from the channel wall 29 closest to the hollow body 28 and towards a channel wall arranged further away from the hollow body 28. A reduction in the amount of fluid arranged inside the hollow body 28, in conjunction with a restoring force caused by the tension of the cylinder elevator 08 and/or, for example, by a spring element, causes an opposite movement. As a result, the cylinder elevator 08 in question can be tensioned and/or relaxed in relation to the circumferential direction B. Preferably, at least one clamping hose 28 or hose 28 for short is arranged as a hollow body 28 whose volume can be changed. To move the at least one clamping element 20 in the circumferential direction B of the forme cylinder 07, an internal pressure of the at least one hollow body 28, preferably designed as a hose 28, can preferably be increased, in particular can be increased in a targeted manner. For this purpose, at least one preferably remotely operable adjusting means is preferred, e.g. B. a valve, in particular a controllable or regulatable valve, in particular a proportional valve and / or at least one pressure reducer is provided, by means of which an internal pressure in the volume-changeable hollow body 28 can be specifically adjusted. Alternatively or additionally, it is provided, for example, that the at least one hollow body 28, preferably designed as a hose 28, is gradually filled with partial volume of the fluid intended for filling, in particular air. The partial volumes are preferably predetermined by a specification regarding the volume and/or a specification regarding an opening time of a valve or the like. For example, such gradual filling takes place iteratively with repeated detection of the internal pressure and/or the position of the at least one clamping element 20 relative to the bale 46 of the forme cylinder 07 and/or repeat ter image inspection and/or repeated register measurement until a desired value and/or condition is achieved. The partial volumes are preferably supplied to the hollow body 28, which is preferably designed as a hose 28, in such a way that a pressure is applied to a valve bordering the interior of this hollow body 28, which is at least as high as and preferably higher than the internal pressure intended for the interior of the hollow body 28, and that fluid flows into the interior of the cavity 28 by specifically opening this valve. In an alternative embodiment variant, the adjusting means provided for displacing the at least one clamping element 20 in the circumferential direction B of the forme cylinder 07 is designed as a preferably electrically operated motor.

For example, both at least one support element 25 designed as a clamping spindle 25 and at least one support element 28 designed as a hollow body 28 whose volume can be changed are arranged. For example, at least one tension hose 28 is exclusively arranged.

The tensioning of the cylinder elevator 08 in the circumferential direction B preferably serves to fasten the cylinder elevator 08 on the forme cylinder 07. The tensioning of the cylinder elevator 08 in the circumferential direction B preferably also serves at least to change the dimension of the cylinder elevator 08 in the circumferential direction B, for example to compensate for changes in the Substrate during its processing, in particular during the processing of a print job pending on the printing press.

Alternatively or in addition to the means suitable for, in particular, remotely adjustable stretching of the cylinder elevator 08 in the circumferential direction B of the forme cylinder 07, means are preferably also arranged for, in particular, remotely adjustable stretching of the cylinder elevator 08 in the axial direction A.

A change in the dimension of the substrate in the transverse direction A and thus parallel to the axial direction A is preferably compensated for by a change in the dimension and in particular an expansion of at least one corresponding cylinder elevator 08 in the axial direction A. The tensioning device 15 preferably has at least one displacement means 27; 34 to change the position of at least one of the clamping elements 20 with respect to the axial direction A and / or to expand at least one cylinder elevator 08 with respect to the axial direction A. For this purpose, the at least one clamping element 20 is by means of this at least one displacement means 27; 34 in and/or against the axial direction A against at least one further clamping element 20 and/or against a component stationary to the bale 46 of the forme cylinder 07, for example supported and/or supportable against the bale 46 of the forme cylinder 07 itself. In particular, displacement means 27 are preferably provided, which are each arranged between two clamping elements 20 or between a boundary of the cylinder channel 14 related to the axial direction A and the respective outer clamping elements 20. The at least one displacement means 27; 34 is, for example, manually and/or at least partially or preferably completely automated, for example controlled and/or regulated by a control implemented in the control computer, in particular by the machine control, and in particular can be actuated by means of at least one drive.

In a first embodiment of the at least one displacement means 27, the respective at least one displacement means 27 is connected, for example, to at least two clamping elements 20. The at least one displacement means 27 is then, for example, as at least one displacement spindle 27 and/or as at least one hollow body 27 whose volume can be changed, in particular as at least one displacement hose 27 and/or as at least one electric drive, e.g. B. Motor formed.

In a second embodiment of the at least one displacement means 34, the respective at least one displacement means 34 is, for example, exclusively connected to a clamping element 20 on the one hand and to a component which is stationary in relation to the bale 46 of the forme cylinder 07, for example the bale 46 of the forme cylinder 07 itself. The at least one displacement means 34 is preferably designed in such a way that it enables different distances for the displacement of the same respective clamping element 20 and/or that it enables different distances for the displacement of different clamping elements 20. Two examples of this second embodiment are described below.

In a first example of the second embodiment of the at least one displacement means 34, an axial displacement of the at least one clamping element 20 is preferably effected by means of an extension related to the axial direction A of at least one first force transmission element 36 or, for short, first force transmitter 36. For this purpose, the at least one clamping element 20 and preferably the plurality of clamping elements 20 are preferably arranged in the cylinder recess 14, in particular in a row in relation to the axial direction A. Preferably, at least two and more preferably at least three clamping elements 20 are arranged one after the other in this way. The at least one clamping element 20 preferably has at least one outer clamping element 23 and at least one inner clamping element 24. Further preferably, each of the at least two clamping elements 20 each has at least one outer clamping element 23 and at least one inner clamping element 24. In a starting position, the plurality of clamping elements 20 are arranged, for example, such that their inner clamping elements 24 are aligned in the axial direction A and/or that their outer clamping elements 23 are aligned in the axial direction A. However, this condition can be eliminated, in particular by displacing the individual clamping elements 20 differently with respect to the circumferential direction B.

The end 19, which trails at least during printing operation, is preferably fastened to the respective clamping element 20 by clamping the end 19, which trails at least during printing operation, between the respective inner clamping element 24 and the respective outer clamping element 23.

The actuation of the respective adjusting means acting on the at least one clamping element 20 for displacing the relevant clamping element 20 in the circumferential direction B of the forme cylinder 07 and/or in its axial direction A is preferably carried out from outside the forme cylinder 07, in particular without contact, e.g. B. magnetic.

The at least one displacement means 34 preferably has at least a first force generating element 35 or a first force generator 35. The at least one displacement means 34 preferably has at least one first force transmission element 36. The at least one force generating element 35 can preferably be activated and also deactivated again. The at least one force generating element 35 is preferably designed as at least a first displacement drive 35. The at least one force-generating element 35 is preferably designed as at least one hollow body 35 whose volume can be changed, for example as at least one pneumatic force-generating element 35, in particular as at least one expansion hose 35. This hollow body 35 is preferably acted upon or at least can be acted upon with compressed air.

For example, at least one rotary insert 22 is preferably arranged on at least one end face of the relevant forme cylinder 07, in particular on one of its pins, in order to transport the fluid, e.g. B. to convey the air as a medium into the forme cylinder 07 and in particular into the hollow body 35 or expansion hose 35 and/or into the tension hose 28. The at least one rotary input 22 is preferably designed to have multiple channels, i.e. H. Different support elements 28 and/or force generating elements 35 can each preferably be acted upon with fluids of different pressures. The at least one rotary insert 22 is in particular also designed in such a way that a support element 28 and/or force generating element 35 arranged in or on the relevant forme cylinder 07 to be acted upon with a fluid is acted upon or at least can be acted upon with the fluid during a rotation of this forme cylinder 07. In a particularly preferred embodiment of the at least one rotary insert 22, the plurality of channels 26 are each acted upon or at least capable of being acted upon with fluids of different pressures during the rotation of the forme cylinder 07.

The 12 and 13 show an example of a generic rotary insert 22, which is attached or arranged or at least attachable or can be arranged on one of the end faces of the relevant forme cylinder 07, in particular on a pin of this cylinder 07, whereby the 13 a longitudinal section through the in the 12 shown rotary insertion 22 is. In a particularly preferred embodiment, the relevant coaxial z. B. rotatable inner part 43 mounted on rolling elements and a z. B. on a holder 30 non-rotatably held outer part 44 having a rotary insertion 22 arranged in its center channel 26 and at least one further channel 26 outside its center, each of these channels 26 on the rotary insertion 22 a connection 64; 65; 66; 67; 68 for introducing and/or discharging the respective medium, in particular the fluid. The fluid is guided or at least can be guided through the several channels 26 of the relevant rotary insert 22, with the fluid guided through the channel 26 arranged in the center of the relevant rotary insert 22 being permanently pressurized during the rotation of the cylinder 07 and that through the at least one outside The channel 26, which is guided or at least can be guided in the center of this rotary insertion 22, is temporarily and/or periodically depressurized. This measure protects the respective seal of the channels 26 arranged outside the center of the rotary insertion 22 in question and increases the service life of the seal in question. The respective at least one hollow body 27, which can be changed in terms of its volume; 28 of the plurality of fasteners 16; 18 and/or the respective at least one hollow body 27 whose volume can be changed; 28; 35 of the at least one displacement means 34 is or are each preferably connected to the channel 26 arranged in the center of the rotary insertion 22 in question. Advantageously, at least one remotely operable, controllable or regulatable valve is provided, by means of which an internal pressure in the volume-changeable hollow body 27; 28; 35 is set or at least adjustable. Furthermore, at least one check valve 70, each with an unlocking device, is preferably present, with the respective at least one hollow body 27; the volume of which can be changed; 28; 35 of the plurality of fasteners 16; 18 and / or the at least one displacement means 34 guided fluid is each locked or at least lockable by means of the relevant check valve 70. The pressure of the respective at least one hollow body 27; which can be changed in terms of its volume; 28; 35 of the plurality of fasteners 16; 18 and/or the at least one displacement means 34 can each be reduced by actuating the respective unlocking device of the relevant check valve 70.

In an additional or alternative very advantageous embodiment of the cylinder 07, in particular the forme cylinder 07 of a printing press, which has at least one rotary insert 22 on one of its end faces at least for introducing a fluid into the cylinder 07 and into several hollow bodies 27 arranged in or on the cylinder 07; 28; 35, it is provided that at least one changeover valve 69 having at least two stable operating positions is arranged in or on the cylinder 07, wherein in the first operating position of the relevant changeover valve 69 the fluid passed through the rotary inlet 22 is directed solely to a first hollow body 27 and in the second operating position either only a second hollow body 28 or both the first hollow body 27 and the second hollow body 28 can be supplied together. By using a switching valve 69, lines for guiding the fluid can be used multiple times. This measure reduces the number of channels 26, which the rotary insert 22 at least for introducing the fluid into the cylinder 07 and into several hollow bodies 27 arranged in the cylinder 07; 28; Must have 35. This also increases the operational reliability of the rotary insert 22 arranged on the cylinder 07 by reducing the risk of failure. Furthermore, a smaller number of channels 26 required naturally also reduces the costs of the rotary insert 22 and allows the rotary insert 22 to be designed to be more compact, ie with less installation space. The switching valve 69 in question for switching between its respective stable operating positions is preferably designed to be remotely operable. As already described, the rotary insert 22 preferably has a plurality of channels 26, the fluid passed through one of these channels 26 before being fed to at least one of the hollow bodies 27; 28; 35 is directed to the at least one changeover valve 69, the changeover valve 69 in question being switched or at least switchable between its respective stable operating positions by a pressure increase in the fluid passed through another channel 26 of the rotary insert 22 via a predetermined pressure level. The changeover of the relevant changeover valve 69, which is dependent on a pressure level, saves an otherwise additional control line. The changeover valve 69 in question is switched between its respective stable operating positions by an increase in pressure, in particular in the hollow body 27; the volume of which can be changed with the relevant hollow body 27; 28; 35 of the at least one clamping element 20 for clamping the cylinder elevator 08 on the cylinder 07 connected channel 26 of the rotary insert 22 can be switched over a predetermined pressure level. The pressure level for switching the relevant switching valve 69 between its respective stable operating positions is preferably set in such a way that this pressure level is greater than a minimum pressure in the fluid required for the relevant clamping element 20 for tensioning the cylinder elevator 08 on the cylinder 07. As already described above, at least one fastening device 15 arranged in a cylinder recess 14 is also preferably provided for this cylinder 07, which has at least one changeover valve 69, the at least one fastening device 15 being designed as a holding device and/or as a clamping device, the at least one fastening device 15 several fasteners 16; 18 for holding at least one cylinder elevator 08 on the lateral surface of the cylinder 07 and / or at least one clamping element 20 for tensioning the cylinder elevator 08 on the cylinder 07 and / or at least one displacement means 34 for changing the position of at least one of the clamping elements 20 with respect to an axial direction A of the cylinder 07 and for stretching the cylinder elevator 08 with respect to the axial direction A and / or for changing the position of at least one of the clamping elements 20 with respect to a circumferential direction B of the cylinder 07 and for stretching the cylinder elevator 08 with respect to the circumferential direction B. The several fasteners 16; 18 and/or the at least one clamping element 20 and/or the at least one displacement means 34, each in particular by means of the respective hollow body 27, which can be changed in terms of its volume; 28; 35 movable. The respective at least one hollow body 27, which can be changed in terms of its volume; 28; 35 of the plurality of fasteners 16; 18 and/or the at least one displacement means 34 is or are of course each advantageously connected to one of the channels 26 of the relevant rotary insert 22. Furthermore, e.g. B. at least one check valve 70, each with an unlocking device, may be present, with the respective at least one hollow body 27; the volume of which can be changed; 28; 35 of the plurality of fasteners 16; 18 and/or at least A fluid guided by a displacement means 34 is locked or at least lockable by means of the relevant check valve 70. The pressure of the respective at least one hollow body 27, which can be changed in terms of its volume; 28; 35 of the plurality of fasteners 16; 18 and/or the at least one displacement means 34 can then be reduced by actuating the respective unlocking device of the check valve 70 in question.

14 shows an example of a circuit diagram, in particular a pneumatic diagram, from which it can be seen how valves arranged in the cylinder 07, in particular changeover valves 69 and / or check valves 70, and hollow bodies 27; 28; 35 lines carrying the fluid are each connected to one another. The lines are also equipped with connections 64; for introducing and/or discharging the respective fluid into or out of the cylinder 07; 65; 66; 67; 68 of the relevant rotary union 22 connected ( 13 ).

The remote control of the valves, e.g. B. also the switching valves 69 and / or the check valves 70, z. B. from the control computer of the processing machine, in particular the printing press. This control computer is preferably connected to an operating device and a display device. 15 shows an example of a program mask 71 that is displayed or at least can be displayed on the display device, by means of which the respective valves are set to a specific value or at least can be set. This program mask 71 belongs to a program that is executed or at least executable by the control computer, by means of which an error regarding the respective print length of the print images of the individual printing colors can be specifically compensated for. In a preferred embodiment, the one in which at least one setting of the valves is to be readjusted or changed can be selected from several stored machine configurations using an operating element 72. The selected machine configuration includes, for example: B. several printing units, each of which, for example, has at least one setting option 73; 74 is assigned for the relevant printing length in the circumferential direction and/or in the axial direction of the relevant cylinder 07. In this program mask 71 is z. B. provided to set a value in the circumferential direction and two values, namely for both sides of the axial direction of the cylinder 07 in question, for each of the printing units. The settings that can be made with the associated operating device are made e.g. B. in percentages, based e.g. B. on the maximum opening of the valve in question or on the maximum possible change in length of the print image in question. Depending on the percentage set or selected, the setting of the respective valves in the relevant printing unit changes.

To move the at least one clamping element 20 in the axial direction A of the forme cylinder 07, an internal pressure of the hollow body 35, which is preferably designed as an expansion tube 35, can preferably be increased, in particular can be increased in a targeted manner. For this purpose, at least one valve, in particular a proportional valve and/or at least one pressure reducer, is preferably provided, by means of which an internal pressure can be specifically adjusted. Alternatively or additionally, it is provided, for example, that the hollow body 35, which is preferably designed as an expansion tube 35, is gradually filled with partial volume of the fluid intended for filling, in particular air. The partial volumes are preferably predetermined by a specification regarding the volume and/or a specification regarding an opening time of a valve or the like. For example, such gradual filling takes place iteratively with repeated detection of the internal pressure and/or the position of the at least one clamping element 20 relative to the bale 46 of the forme cylinder 07 and/or repeated image inspection and/or repeated register measurement until a desired value and/or state is reached is. The partial volumes are preferably supplied to the hollow body 35, which is preferably designed as an expansion hose 35, in such a way that a pressure is applied to a valve bordering the interior of this hollow body 35, which is at least as high as and preferably higher than the internal pressure intended for the interior of the hollow body 35, and that fluid flows into the interior of the cavity 35 by specifically opening this valve. In an alternative embodiment variant, the adjusting means provided for displacing the at least one clamping element 20 in the axial direction A of the forme cylinder 07 is designed as a preferably electrically operated motor.

For example, the at least one force generating element 35 is arranged such that a force 39 generated by it is initially aligned at least substantially orthogonally to the axial direction A. Then preferably at least one force transmission element 36 is arranged, which is designed, for example, as at least one lever or preferably at least a first spiral spring 36. Preferably, the at least one spiral spring 36 is preformed in such a way that a convex region of the spiral spring 36 faces the at least one force-generating element 35 and is arranged at the same position as the at least one force-generating element 35 with respect to the axial direction A. Preferably, the at least one spiral spring 36 is arranged in its longitudinal extent in the axial direction A. Preferably, this is at least one force transmission element 36 at at least one first connection point 37 with the bale 46 of the Formzy linders 08 connected and/or in contact. The first connection point 37 is also called a cylinder bearing 37, for example. Preferably, the at least one force transmission element 36 is connected and/or in contact with the at least one clamping element 20 at at least one second connection point 38. The second connection point 38 is also called clamping element bearing 38, for example. The first connection point 37 and/or the second connection point 38 preferably allow relative movements between the at least one force transmission element 36 on the one hand and the bale 46 of the forme cylinder 07 and/or the respective clamping element 20 on the other hand with respect to the circumferential direction B. This is achieved, for example, by arranging at least one dovetail guide 45 makes possible, for example, a connection between the bale 46 of the forme cylinder 07 and the clamping element 20.

Preferably, a shape and/or position of the at least one force transmission element 36 can be changed by a force 39 emanating from the force generating element 35 in such a way that the second connection point 37 is removed from the first connection point 37 with respect to the axial direction A. For example, the force 39 emanating from the force generating element 35 is generated by an increased pressure within the expansion hose 35. For example, to change the shape and/or position of the at least one force transmission element 36, its convexity is reduced and/or its extent in the axial direction A is increased. For example, the spiral spring 36 can be acted upon as a force transmission element 36 via the expansion hose 35 with a force 39 which acts essentially transversely to the longitudinal extent of the spiral spring and preferably acts in the middle of the spiral spring 36. This leads to a deformation of the spiral spring 36, so that a distance a between the cylinder bearing 37 and the clamping element bearing 38 increases and thus the clamping element 20 is displaced with respect to the axial direction A.

Preferably, the at least one force transmission element 36 is designed to be elastic in such a way that it generates a counterforce that counteracts its deformation, which is further preferably lower than the force 39 that can be generated by the force generating element 35. This allows, for example, when the spiral spring 36 is relieved by venting the expansion hose 35 Return spring 36 to its original position. If the clamping element bearing 38 is designed as a loose second connection point 38, at least one restoring element 40 generating a restoring force is preferably arranged, for example in the form of a compression spring 40. As a result, the respective clamping element 20 can be displaced back into its starting position with respect to the axial direction A. Alternatively or in addition to the restoring element 40, for example, a positive connection is provided between the bale 46 on the one hand and the force transmission element 36 on the other hand at the second connection point 38 and between the tensioning element 20 on the one hand and the force transmission element 36 on the other hand at the first connection point 37 in order to secure the respective tensioning element 20 to return to its starting position related to the axial direction A, in particular by the counterforce being brought about by the force transmission element 36 itself.

Alternatively or in addition to the expansion hose 35, at least one pneumatic cylinder and/or at least one hydraulic cylinder and/or at least one electric drive can also be used as a force generating element 35, for example in conjunction with at least one gear, such as a threaded spindle. The at least one force transmission element 36 is alternatively or additionally designed as at least one toggle lever mechanism. The force 39 of the force generating element 35 then preferably acts on a joint between two levers, so that the displacement of the respective clamping element 20 takes place by stretching the toggle lever mechanism.

A second example of the second embodiment of the at least one displacement means 34 differs from the first example in particular in a type and/or direction of the force exerted by the force transmission element 36.

While in the first example the tensioning element 20 is pushed through the force transmission element 36 when the force generating element 35 is activated, in the second example the tensioning element 20 is pulled through the force transmission element 36 when the force generation element 35 is activated. Unless otherwise described, the second example preferably corresponds to the first example. The at least one spiral spring 36 is preferably preformed in such a way that a concave region of the spiral spring 36 faces the at least one force-generating element 35 and is arranged at the same position as the at least one force-generating element 35 with respect to the axial direction A.

Preferably, a shape and/or position of the at least one force transmission element 36 can then be changed by a force emanating from the force generating element 35 in such a way that the second connection point 37 is moved towards the first connection point 37 with respect to the axial direction A. For example, the force 39 emanating from the force generating element 35 is generated by an increased pressure within the expansion hose 35. For example, to change the The shape and/or position of the at least one force transmission element 36 increases its concavity and/or reduces its extent in the axial direction A. For example, the spiral spring 36 can be acted upon as a force transmission element 36 via the expansion hose 35 with a force 39 which acts essentially transversely to the longitudinal extent of the spiral spring 36 and preferably acts in the middle of the spiral spring 36. This leads to a deformation of the spiral spring 36, so that a distance b between the cylinder bearing 37 and the clamping element bearing 38 is reduced and thus the relevant clamping element 20 is displaced with respect to the axial direction A. If a restoring element 40 is arranged, this is preferably designed as at least one tension spring 40.

Alternatively, a force transmission element 36 is not arranged, but a force generating element 35 is directly connected to the respective at least one clamping element 20 and is designed to directly adjust its position in relation to the axial direction A.

The cylinder elevator 08 clamped on the forme cylinder 07 is preferably changed in dimension, in particular stretched, according to predetermined values and preferably remotely adjustable in the axial direction A and/or in the circumferential direction B.

To stretch the cylinder elevator 08 in the circumferential direction B, the cylinder elevator 08 is preferably arranged on the forme cylinder 07 and more preferably fastened, in particular clamped, at its end 17 leading during printing operation in or on the front fastening means 16, and at its trailing end 19 during printing operation held in the at least one clamping element 20 of the clamping device 15 arranged in the cylinder channel 14. In particular, by moving the at least one tensioning element 20 with respect to the circumferential direction B, a tensile stress FZ is built up within the cylinder elevator 08, which is increased to stretch the cylinder elevator 08 in the circumferential direction B. By displacing the clamping elements 20 in the circumferential direction B, the cylinder elevator 08 is clamped on the surface of the forme cylinder 07 and, if necessary, stretched. A change in the tensile stress FZ in the relevant cylinder elevator 08, namely in the axial direction A and/or in the circumferential direction B, leads to a dimensional change of this cylinder elevator 08, i.e. H. to a change in its length and/or width.

The at least one clamping element 20 arranged movably in the clamping channel 14 preferably has at least one outer clamping element 23 and at least one inner clamping element 24, wherein the clamping element 20, at least its one inner clamping element 24, in its movement in the circumferential direction B of the forme cylinder 07 through at least a guide rail 48, for example, which is firmly connected in particular to the bale 46 of this forme cylinder 07 and extends in the circumferential direction B of the forme cylinder 07. B. is forcibly guided along an adjustment path S, with this at least one guide rail 48 preferably being arranged on or in the base 49 of the clamping channel 14 or at a small height above the base 49 of the clamping channel 14 ( 7 and 8th ). A low height above the base 49 of the clamping channel 14 should be understood to mean a height which, starting from the level of the base 49 of the clamping channel 14, is at most up to half the overall height of the relevant clamping element 20 arranged in the clamping channel 14, ie in particular its inner clamping element 24, preferably only measures up to a third of this height. In a preferred embodiment, the guide rail 48 is designed as a tongue and groove system, with a z. B. T-shaped groove on the end facing the base 49 of the clamping channel 14 of the inner clamping element 24 arranged in the clamping channel 14 and one in this groove in particular with only a slight play of less than z. B. 0.3 mm guided z. B. T-shaped spring are formed at the base 49 of the clamping channel 14, as in the 8th is shown as an example. The clamping element 20 moving in the circumferential direction B of the forme cylinder 07 is of the volume-changeable hollow body 28 z. B. by means of a piston 53, which preferably acts directly on the clamping element 20 in question, preferably against the force FF of at least one spring element 51 which is firmly supported in the clamping channel 14 in or on a holder 52. The at least one spring element 51 is preferably designed as a compression spring. With a reduction or elimination of the pressure exerted on this clamping element 20 by the pneumatic means 28, ie in particular the hollow body 28, the clamping element 20 remains at its z. B. position set along the adjustment path S, in particular due to the tensile stress FZ built up within the cylinder elevator 08 and counteracting the pressure exerted on the relevant clamping element 20 in a state of self-locking.

FZ

Gegenkraft bzw. Zugspannung des Zylinderaufzugs 08

FF

Gegenkraft des Federelementes 51

FH

Druck bzw. Antriebskraft des Hohlkörpers 28

FA; FB

Führungskräfte entlang der Führungsschiene 48

FAr; FBr

Reibkräfte entlang der Führungsschiene 48

The creation of self-locking is based on the 9a and 9b explained in more detail, with only one of the z. B. in the at least one guide rail 48, preferably along an adjustment path S in the circumferential direction B of the forme cylinder 07, clamping elements 20 in the preferred embodiment with its at least one outer clamping element 23 and its at least one inner clamping element 24 in one part section is shown. As can be seen from the respective illustration, the following forces or corresponding tensions and/or pressures are at work:

FZ

Counterforce or tensile stress of the cylinder elevator 08

FF

Counterforce of the spring element 51

FH

Pressure or driving force of the hollow body 28

FA; FB

Managers along the guide rail 48

FAr; FBr

Frictional forces along the guide rail 48

3a shows the state of tensioning of a cylinder elevator 08, preferably arranged on a forme cylinder 07. Due to the geometric conditions, the resulting force predominates in the area around the z. B. T-shaped guide rail 48 compared to the counterforce FZ of the cylinder elevator 08. The cylinder elevator 08 is along the z. B. moved by the at least one guide rail 48 fixed travel S in the direction of the indicated movement arrow and thereby tensioned.

3b shows the state of self-locking, ie a retention of the relevant clamping element 20 at a z. B. position located along the travel S. If the driving force FH of the hollow body 28 and thus the resulting force compared to the counterforce FZ of the cylinder elevator 08 becomes smaller and at least through the z. B. executives FA acting along the at least one guide rail 48; FB and friction forces FAr; FBr falls below a certain limit or disappears completely, the relevant clamping element 20, which is preferably guided with only slight play, ie its at least one inner clamping element 24 z. B. in or on the at least one guide rail 48 on the previously z. B. "stuck" in the position set along the adjustment path S, since the counterforce FZ of the cylinder elevator 08 exerts a torque in the same direction as this counterforce FZ on the clamping element 20, the pivot point of which lies in the area of the guide rail 48, whereby the clamping element 20 in question is moved out of its position Reason 49 of the clamping channel 14 orthogonal arrangement in the direction of the counterforce FZ of the cylinder elevator 08 "tilts" and thereby fixes itself in a self-locking manner on the at least one guide rail 48 by tilting or is held in the previously set position.

10 shows again in a partial sectional view of the relevant forme cylinder 07 one of the self-locking clamping elements 20 arranged in or on the at least one guide rail 48.

To stretch the cylinder elevator 08, in particular at least the trailing end 19 of the cylinder elevator 08 in the axial direction A, a relative displacement of at least two of the tensioning elements 20 with respect to this axial direction A, in particular from the center of the bale 46 relative to the axial direction A, preferably takes place Form cylinder 07 starting. By displacing the clamping elements 20 in the axial direction A, the cylinder elevator 08 is spread in the area of its trailing end 19 and thus stretched.

In the case of a clamping element 20 arranged in a self-locking manner in the cylinder channel 14, the tensile stress FZ built up with this clamping element 20 in a cylinder elevator 08 can only be increased, but cannot be reduced during the rotation of the relevant forme cylinder 07. A tension FZ that is unintentionally set too high cannot be reversed during the rotation of the relevant forme cylinder 07, but can only be reversed after the relevant forme cylinder 07 has come to a standstill and has been loosened, for example. B. the outer clamping element 23 of the relevant clamping element 20, which is designed as an outer terminal strip 23. Therefore, in a plurality of printing units 01; 02; 03 having processing machine, in particular printing machine, provided that an excessively built-up tensile stress FZ in a cylinder elevator 08 of a forme cylinder 07, which is particularly involved in the processing of the print job, of one of these printing units 01; 02; 03 by tracking the respective tensile stress FZ in a cylinder elevator 08 of at least one other of the forme cylinders 07 of at least one of the other printing units 01, which are particularly involved in processing this print job; 02; 03 is compensated.

This makes it possible to carry out a method for adapting at least one cylinder lift 08 to a change in the printing material in the circumferential direction B of a forme cylinder 07, in which at least two cylinder lifts 08 are arranged in a printing press on different forme cylinders 07, in which a tensile stress FZ is in each of these cylinder lifts 08 in each case at least in the circumferential direction B of the forme cylinder 07 carrying them, in which the respective tensile stress FZ during the rotation of the relevant forme cylinder 07 in particular by a in its circumferential direction B z. B. displacement of a clamping element 20 along an adjustment path S is built up, in which the relevant clamping element 20 is displaced by a driving force FH directed in particular in the opposite direction to the relevant tensile stress FZ is, in which at least one of the clamping elements 20 is held in its position when the driving force FH is reduced below a limit value, e.g. B. remaining in the state of self-locking, in which one of the held in position, e.g. B. tension element 20 remaining in self-locking excessively built-up tensile stress FZ in a cylinder elevator 08 on a forme cylinder 07, which is particularly involved in processing a specific print job, by tracking, ie in particular by increasing the respective tensile stress FZ in the respective cylinder elevator 08 by at least one other in particular Forme cylinder 07 involved in processing this print job is compensated. This method can advantageously be carried out in combination with one or more of the other features already described or mentioned below.

In particular, through register measurements preferably carried out in the processing machine, i.e. inline, necessary settings and/or controls of the clamping elements 20 and/or the drive of the forme cylinder 07 can be derived, in particular the necessary settings and/or controls of the clamping elements 20 not only for tracking during the Rotation of the relevant forme cylinder 07, but already when setting up the processing machine, which is preferably designed as a printing machine. Each cylinder lift 08 of a print job is preferably provided with at least one image feature during its exposure, for example in the form of a registration mark. The at least one image feature is usually arranged in an area of the cylinder elevator 08 that is free of a print image, but can also be part of the print image 32 itself, for example. At least two such image features are preferably provided, which differ from one another in terms of their position on the forme cylinder 07 in the axial direction A and/or in the circumferential direction B. For example, these are provided in at least one print image-free area extending in the axial direction A and/or the circumferential direction B of the forme cylinder 07.

Preferably, in a memory, for example in the control computer of the processing machine that controls at least the clamping element 20 in question, there are specific data for the clamped cylinder elevator 08 and/or for the printing material to be printed in the upcoming print job, such as its material and/or its thickness and /or its format is stored and/or it is stored in this or in another memory as machine-specific data, for example a position or location of the respective clamping elements 20 before the print job is processed. It is advantageous, before processing the pending print job, for each of the printing units 01; involved in processing the print job; 02; 03 to determine the machine-specific data relating to at least one clamping element 20 and to store it in the respective memory. With for each printing unit 01; 02; 03 individual machine-specific data, e.g. B. also a ranking of these printing works 01; 02; 03 in their respective use when processing the print job in question can, in particular in conjunction with specific data for the clamped cylinder lift 08 and/or with specific data for the printing material to be printed in the upcoming print job, dimensional changes to the printing material resulting from the printing process in an automatic control or regulation can be counteracted by taking this specific data into account by the control computer and determining correction values that are used to control e.g. B. at least one of the clamping elements 20 and / or for adjusting and / or tracking an angular position of the relevant printing forme cylinder 07 relative to an angular position of a printing material-carrying cylinder 04; 06 can be used. The tax calculator determines a deviation from e.g. B. actual values relating to the printing process and/or at least one dimension of the printing material to target values and then determines from this target/actual value comparison e.g. B. correction values influencing the position or location of the relevant clamping element 20, which reduces or eliminates this deviation. The control computer is preferably part of the machine control. Furthermore, process-specific data can be stored in the or a further memory, the process-specific data in particular a production speed of the processing machine and / or the climatic production conditions such as. B. relate to information about the temperature and / or humidity of the air surrounding the printing material.

The data specific to the clamped cylinder elevator 08 and/or the data specific to the printing material to be printed in the upcoming print job are stored in their respective memory or in the shared memory, preferably depending on at least one variable process parameter or machine parameter, e.g. B. depending on the production speed of the processing machine, in particular on a printing speed of the printing machine, which is preferably designed as a sheet-fed printing press.

The deposit of the respective process parameter or machine parameter, which is dependent on a variable process parameter or machine parameter, either computationally or experimentally specific data determined is carried out e.g. B. each in a table or through a mathematically describable functional relationship, with the respective functional relationship in a z. B. Cartesian coordinate system z. B. is or will be represented by pairs of values or in a curve or at least can be represented. Such a curve is also referred to as a tracking curve.

• • der Produktionsgeschwindigkeit der Bearbeitungsmaschine
• • einer Einstellung eines Farbwerks 09 betreffend z. B. seiner Farbzonen, einer Duktordrehzahl oder einem Hebertakt
• • einer Einstellung eines Feuchtwerks 12
• • einer Information über die z. B. aktuelle oder beabsichtigte Flächendeckung des Bedruckstoffes
• • einer Höhe bzw. Dicke des betreffenden Zylinderaufzugs 08, d. h. einer Information zum Ist-Durchmesser von Oberflächen z. B. einer Druckplatte und/oder eines Gummituchs
• • einem Typen, insbesondere einem Gummituchtyp oder einem Förderverhalten des Gummituchs
• • einer Einstellung einer Pressung zwischen dem Bedruckstoff und dem mit dem betreffenden Formzylinder 07 zusammenwirkenden Übertragungszylinder 06, d. h. insbesondere dem Gummituch
• • einer Information betreffend den Bedruckstoff, z. B. seinem Typ oder Werkstoff, sein Flächengewicht, seine Faserausrichtung, seine Dicke, seine Länge und/oder Breite, die Beschaffenheit seiner zu bearbeitenden Oberfläche (z. B. gestrichen oder nicht gestrichen), sein Feuchtdehnungsverhalten
• • einer Information über die Temperatur und/oder Feuchte der den Bedruckstoff umgebenden Luft

Preferably, a quantity of specific data or various tracking curves are stored in the memory in question, and a selection can be made from this quantity in particular by the operator of the relevant processing machine, which is preferably designed as a printing press, or automatically as required. The respective specific data or each of these tracking curves can e.g. B. depend on one or more of the following parameters:

• • the production speed of the processing machine
• • a setting of an inking unit 09 regarding e.g. B. its color zones, a ductor speed or a lift cycle
• • a dampening system setting 12
• • information about the e.g. B. current or intended area coverage of the printing material
• • a height or thickness of the cylinder elevator 08 in question, ie information about the actual diameter of surfaces e.g. B. a printing plate and/or a rubber blanket
• • a type, in particular a type of rubber blanket or a conveying behavior of the rubber blanket
• • an adjustment of a pressure between the printing material and the transfer cylinder 06 which interacts with the relevant forme cylinder 07, ie in particular the rubber blanket
• • information regarding the printing material, e.g. B. its type or material, its basis weight, its fiber orientation, its thickness, its length and / or width, the nature of the surface to be processed (e.g. painted or not painted), its wet expansion behavior
• • Information about the temperature and/or humidity of the air surrounding the printing material

All of these specific data can be used individually or in any combination for the respective setting and/or tracking, e.g. B. at least one of the clamping elements 20 and / or for adjusting an angular position of at least one of the cylinders 04 involved in the printing process; 06; 07 can be applied, i.e. H. Each of these tracking curves can be used alone or together with at least one of the other tracking curves for the respective setting and / or tracking z. B. at least one of the clamping elements 20 and / or for adjusting the angular position of at least one of the cylinders 04 involved in the printing process; 06; 07 can be applied. With the help of the specific data, at least one print image 31 as well as at least one cylinder lift 08 or both can be adapted to a change in the printing material.

In addition, it can be provided that the specific data used as correction values are entered into the control computer that adjusts and/or tracks the respective clamping elements 20 by the operator of the relevant processing machine, which is preferably designed as a printing press, or is selected from its memory. The correction values entered or selected by the operator into the control computer can be used individually or together, for example. B. in superposition, in particular in addition with at least one of the tracking curves stored in the control computer for the respective setting and / or tracking z. B. at least one of the clamping elements 20 and / or for adjusting an angular position of at least one of the cylinders 04 involved in the printing process; 06; 07 are used.

The specific data or correction values used for the respective setting and/or tracking of at least one of the clamping elements 20 can also be learned by the control computer, preferably by several printed sheets processed one after the other in the processing machine, between which at least one parameter was changed in the processing machine from a z. B. detection device 60 belonging to an inspection system and compared with a reference, the reference z. B. is formed by another print sheet 31 or by a print template from a prepress stage. Depending on in the aforementioned comparison z. B. with the help of calculation algorithms e.g. B. deviations from the reference, preferably automatically determined by the inspection system or the control computer, can e.g. B. the control computer automatically determines correction values and stores them in the relevant memory for the aforementioned use in the respective setting and/or tracking, e.g. B. at least one of the clamping elements 20 and / or for adjusting an angular position of at least one of the cylinders 04 involved in the printing process; 06; 07 deposit.

A method for adapting a printed image 32 and/or at least one cylinder elevator 08 to a change in the printing material in a printing press can thus advantageously be carried out, in which at least one cylinder elevator 08 or the relevant cylinder elevator 08 with at least one in a cylinder channel 14 of a printing forme cylinder 07 The clamping element 20 arranged on the printing press is tensioned on the lateral surface of the relevant printing forme cylinder 07, in which a tensile stress FZ is built up within the respective cylinder elevator 08 by means of a movement of the at least one clamping element 20 in the axial direction A and/or in the circumferential direction B of the printing forme cylinder 07. The adaptation to the change in printing material is carried out in particular during the rotation of the printing forme cylinder 07 in its circumferential direction B with a drive of the printing forme cylinder 07 by a controlled and / or regulated rotational movement of this printing forme cylinder 07. With the at least one clamping element 20, in particular when setting up the printing press for an upcoming print job and/or during the rotation of the printing forme cylinder 07 carried out when processing the print job, a specific value for the respective tensile stress is determined by a control computer within the cylinder elevator 08 that controls the relevant clamping element 20 FZ set and/or updated to adapt to the change in printing material. Alternatively or additionally, a course of an angular position of the printing forme cylinder 07 in question is relative to an angular position of a cylinder 04 carrying printing material; 06 controlled or regulated, the specific value for the respective tensile stress FZ and / or the angular position of the relevant printing forme cylinder 07 each being based on specific data stored in at least one memory for the respective cylinder lift 08 and / or for a printing material to be printed in the upcoming print job and/or adjusted and/or tracked based on machine-specific data and/or process-specific data. The adaptation of the print image 32 and/or the at least one cylinder elevator 08 to the change in printing material is preferably carried out based on specific data stored in at least one memory for the respective cylinder elevator 08 and/or for a printing material to be printed in the upcoming print job and/or based on machine-specific data data and/or based on process-specific data. The specific data for the clamped cylinder elevator 08 relates, for example, to: B. a height and / or a type of the cylinder elevator 08 in question. The specific data for the printing material to be printed in the upcoming print job relates, for example, to: B. information about its type or material and / or its basis weight and / or its fiber orientation and / or its thickness and / or its length and / or width and / or the nature of its surface to be processed or its wet expansion behavior. The machine-specific data concerns e.g. B. an adjustment of an inking unit 09 of the printing press and / or an adjustment of a dampening unit 12 of the printing press and / or an adjustment of a pressure between the printing material and z. B. a transfer cylinder 06 of the printing press that interacts with the forme cylinder 07 and/or a respective position of the at least one clamping element 20 before the print job is processed. The process-specific data concerns e.g. B. a production speed of the printing press and/or information about an area coverage of the printing material and/or information about the temperature and/or humidity of the air surrounding the printing material. The specific data for the clamped cylinder elevator 08 and/or the specific data for the printing material to be printed in the upcoming print job in the at least one memory are stored in the preferred embodiment as a function of at least one variable process parameter or machine parameter, the at least one variable Process parameters e.g. B. the production speed of the printing press and / or the information about the area coverage of the printing material and / or the information about the temperature and / or humidity of the air surrounding the printing material and / or wherein the at least one variable machine parameter z. B. the setting of the inking unit 09 of the printing press and / or the setting of the dampening unit 12 of the printing press and / or the setting of the pressure between the printing material and the transfer cylinder 06 of the printing press that interacts with the forme cylinder 07 and / or the respective position of the at least one clamping element 20 before the print job is processed. The specific data for the clamped cylinder elevator 08 and/or the specific data for the printing material to be printed in the upcoming print job and/or the machine-specific data and/or the process-specific data are stored in the at least one memory in a table or by a mathematically describable functional relationship, whereby the respective functional relationship is represented in a coordinate system by pairs of values or in a curve. The specific data for the clamped cylinder elevator 08 and/or the specific data for the printing material to be printed in the upcoming print job and/or the machine-specific data and/or the process-specific data are each determined computationally or experimentally. The specific data is e.g. B. from an operator the pressure machine entered into the control computer that adjusts and/or tracks the respective clamping elements 20 or selected from the memory connected to the control computer.

Even in the case of several remaining in their respective positions, e.g. B. self-locking clamping elements 20 in different forme cylinders 07 involved in processing the same print job, the respective tensile stress FZ is adjusted and/or adjusted in at least one of the cylinder elevators 08, preferably taking into account at least some of the specific data described above.

In an advantageous embodiment, it is provided that system-immanent correction values, which are derived from the machine-specific data and/or from the specific data for the clamped cylinder lift 08 and/or from the specific data for the printing material to be printed in the upcoming print job and/or from the process-specific data to compensate for an expected change in the printing material before the print job is processed, i.e. H. in particular when setting up the printing press for the upcoming print job, in particular when setting the respective clamping elements 20, and then during the processing of this print job the previously made setting of the respective z. B. the tensile stress FZ exerted by the clamping elements 20 is tracked in particular using at least one variable process parameter or machine parameter.

A procedure for generating correction values, in particular taking into account first correction values when setting up the printing press and tracking the settings made during the processing of this print job, will now be exemplified using 11 explained. There are schematically the printing cylinders of a printing unit 01; 02; 03 shown. Such a printing unit 01; 02; 03 includes in the area of a so-called printing unit superstructure one in an embodiment for the offset printing process as a transfer cylinder 06, e.g. B. as a rubber cylinder, designed as the first printing cylinder. This is assigned another printing cylinder designed as a forme cylinder 07. Furthermore, the printing unit 01; 02; 03 in the area of a so-called printing unit substructure a printing unit cylinder designed as a printing cylinder 04 and a transfer drum also referred to as a transfer drum 05. In the exemplary embodiment, the transfer drum 05, the printing cylinder 04 and the first printing cylinder are driven via a coherent gear train 55 driven by a main drive motor, not shown here.

A position-controllable drive is assigned to the additional printing cylinder. This is usually designed as a direct drive DA, i.e. H. the drive motor is coaxially firmly connected to the drive shaft of the additional printing cylinder and there is no positive connection to the drives of additional cylinders and/or rollers.

This position-adjustable drive can be tracked to the first printing cylinder. This is done in such a way that actual position values LW1 of the first printing cylinder are compared with actual position values LW2 of the further printing cylinder. As a result, position differences are determined, the values of which serve as the basis for controlling the position-controllable drive. This creates a printing machine-specific error that must be corrected. This is done by determining the values for a correction of the drive of the further printing cylinder from the position differences and a compensation curve (not shown here). This means that corrected values are determined for the position-controllable drive. This is done in a control unit 56.

The group of printing machine-specific errors mentioned above includes, for example: B. errors caused by concentricity errors in the first printing cylinder. Printing machine-specific errors are also errors that occur, for example: B. can arise due to concentricity errors of at least one angular position sensor provided for detecting the angle of rotation on the first printing cylinder. Furthermore, printing machine-specific errors occur when applying documents to the first printing cylinder. For example, such errors are also inherent to the system in gearboxes.

These systematic, printing machine-specific errors are determined in the course of printing the printing press before its delivery and/or in the course of setting up the printing press before a series of print jobs or before each print job and are stored in the control unit 56. From these values, the first angle-related correction values KW1, which are generated from the printing machine-specific errors, are determined. These first correction values KW1 are now transmitted to a downstream superposition computer 57 in the form of first correction signals 58 and stored there. The first correction values KW1 are now available for controlling the position-controllable drive.

The device for determining the angle-related correction values further comprises a computing unit 59 for determining second angle-related correction values KW2. This computing unit 59 uses print job-specific errors as the reason position for the calculation of the second correction values KW2.

This group of print job-specific errors includes, for example, the register errors that arise as a result of the lengthening of the print sheet 31. Due to the progressive loading of the printing sheet 31 with ink and moisture from printing unit to printing unit as it passes through, it changes its dimension in both length and width. The increase in length of the printed sheet 31 can be compensated for, for example, by the print length compensation already described. This is made possible by targeted control of the position-controllable drive. This is done by cyclically changing the circumferential speed of the additional printing cylinder compared to the first printing cylinder. This means that the additional printing cylinder is driven faster than the first printing cylinder within each cycle, which generates minimal slip between the lateral surfaces of both cylinders. As a result, the printed image 32 to be applied to the printed sheet 31 is also printed for longer and thus compensates for the change in length of the printed sheet 31, which increases from printing unit to printing unit or from color to color. After each revolution or after a fixed number of revolutions, in particular set on the control computer, the rotational speed of the second printing cylinder is set by the control computer again to the rotational speed of the first printing cylinder.

• Wie aus der 11 ersichtlich ist, weist das Druckbild 32 des Druckbogens 31 mindestens zwei hier jeweils als Passmarken ausgebildete Messpunkte 42 auf, die im Zuge der Belichtung der Druckplatte aufgebracht worden sind. Diese sind in einer durch einen Pfeil angedeuteten Transportrichtung des Druckbogens 31 jeweils an den Druckanfängen und an den Druckenden des Druckbildes 32 angeordnet. Es ist auch möglich, zwischen diesen beiden Passmarke eine weitere dritte Passmarke anzuordnen.

The measured values as the basis for this print length composition can e.g. B. can be determined as follows:

• Like from the 11 As can be seen, the printed image 32 of the printed sheet 31 has at least two measuring points 42, each designed here as registration marks, which were applied in the course of exposing the printing plate. These are arranged in a transport direction of the printed sheet 31 indicated by an arrow at the beginnings and ends of the printed image 32. It is also possible to arrange a third registration mark between these two registration marks.

The current print length can be determined in various ways. Manual determination of the print length is currently still widespread. This is done by printing test sheets during the preparation of a print job or by removing test sheets during an ongoing printing process. A test sheet is evaluated by manually checking the position of the registration marks arranged at the start of printing for each color and any register deviations that may be present are corrected automatically, i.e. by controlling the printing press. Another sample sheet is then printed or removed. Now the distances to the rear registration marks assigned to the end of the print are measured and the values are transmitted to the computing unit 59. The different values for each color are determined there.

If third registration marks not shown here are present, intermediate values can be obtained by measuring these registration marks. These intermediate values allow a statement to be made about the course of the print length in the transport direction of the print sheet 31. This makes it possible to change the print length in a more targeted manner, i.e. H. The change in print length can be changed locally. The prerequisite is the use of suitable devices, for example so-called actuators.

Another way to determine the print length is, for example, by using a z. B. designed as a camera detection device 60 z. B. an inspection system to record register deviations in the print image 32 and to determine the print length from these register deviations. This can be done manually on sample sheets or inline in the printing press.

Both the values determined manually by measuring the registration marks and the automatically determined values are now available in the computing unit 59. This makes it possible to determine the second correction values KW2.

As a result of the calculation of the second correction values KW2, second correction signals 61 are transmitted to the subsequently arranged overlay computer 57.

In the superposition computer 57, the first correction values KW1 are superimposed on the second correction values KW2. Control signals 62 are generated, which are transmitted to a drive control 63 of the further printing cylinder.

The superposition of a first correction value KW1 with a second correction value KW2 can be carried out sequentially. This means that a first correction value KW1 is given to the position-controllable drive for, for example, a first rotation angle range, the control signal 62 is generated and the position-controllable drive is set. After processing, the second correction value KW2 is specified for the following second rotation angle range, the control signal 62 is generated and the position-controllable drive is set. The first correction value KW1 is then specified again for the following third rotation angle range. This sequence will continues until the rotation is completed at 360°.

In a further embodiment, the superposition of the first correction values KW1 with the second correction values KW2 is carried out at the same time. A first correction value KW1 is offset against a second correction value KW2 in the superposition computer 57 and an actuating signal 62 is made available for each angle of rotation range for controlling the position-controllable drive.

The control computer of the processing machine, in particular the printing press, can z. B. combine the previously described functions of the control unit 56 and / or the superposition computer 57 and / or the computing unit 59 and / or possibly also the drive control 63.

If a print job is processed, preference is given to 01 for each printing unit; 02; 03 the actual position of the respective image feature, in particular registration cross, printed on the respective cylinder lift 08 is recorded. For example, after a test print, an operator removes a substrate sheet, measures the relative position of the image features and passes these values on to the control computer. Alternatively or additionally, this process is carried out mechanically, in particular using appropriate sensors. For example, while the print job is being processed, the positions of the image features are recorded at fixed or at least definable intervals or continuously and transmitted to the control computer. In this way, an adjustment of the position of the clamping elements 20 and/or a corresponding control and/or regulation of the rotational movement of the at least one forme cylinder 07 involved in the printing process can also be carried out during the processing process of the substrate, in particular in an ongoing printing process of the printing press.

For example, by means of the control computer, any deviations between the image features or registration marks between each other are preferably calculated, which are caused by different printing units 01; 02; 03 come from. For example, taking into account the preferably stored data specific to the respective clamped cylinder elevator 08, a required change in position of the corresponding clamping elements 20 of the respective printing unit 01; 02; 03 and/or a required corresponding control and/or regulation of the rotational movement of the forme cylinder 07 is determined.

For example, a driving force FH or a necessary pressure in the force-generating element 35 required for a required change in position of the clamping elements 20 or a necessary pressure in the force-generating element 35 is calculated using calculation algorithms that are not explained further here and the force-generating element 35 is activated accordingly. Preferably, the expansion hose 35 is filled with a medium and the adequate pressure required for changing the position of the clamping element 20 is built up inside it. Using these or other calculation algorithms, for example, a pressure in the support element 28 necessary for a required change in position of the clamping elements 20 is calculated and the support element 28 is activated accordingly. The support hose 28 is therefore preferably filled with a medium and the adequate pressure required for the change in position of the clamping element 20 is built up in its interior. Using these or other calculation algorithms, for example, an adjustment path S required for a required change in position of the clamping elements 20 or a location or a position of the at least one support element 25 is calculated and the support element 25 is adjusted accordingly. The at least one clamping spindle 25 is therefore preferably displaced accordingly. In the case of the non-existent support element 25, the relevant clamping element 20, which is positively guided on the at least one guide rail 48, is moved to a corresponding position along the adjustment path S and adjusted or fixed there by self-locking. These or other calculation algorithms are used, for example, to calculate a course of the angular position of the forme cylinder 07 relative to an angular position of a transport body 04, in particular cylinder 04 or impression cylinder 04, which guides the substrate, and a rotation of the forme cylinder 07 adapted and/or executed accordingly. A resulting change in position of the clamping elements 20 and/or an expansion of the cylinder elevator 08 and/or a displacement of an image feature and/or a register of the printed image is preferably measured by a sensor, for example a camera, and transmitted to the control computer.

In particular, if the register measurement results in a deviation in the axial direction A of a target position of a marking serving as a register mark from an actual position of the marking serving as a register mark, a method for compensating for register deviations and/or register deviations in the axial direction is preferably carried out A. The method preferably includes at least a change in the position of at least one clamping element 20 with respect to the axial direction A. In this case, one also speaks of a trapezoidal deviation because such deviations are usually more pronounced in the rear area of the sheets, for example due to the grippers if necessary in the front Area of the arch. A marking that serves as a registration mark when printing is, for example, a printed registration mark.

If it is determined during a register measurement that a trapezoidal deviation results, then the trailing end 19 of the cylinder elevator 08 is preferably exposed to an increased tension with respect to the axial direction A and thus stretched in the axial direction A. For this purpose, one or more of the clamping elements 20 or clamping segments 20 are preferably displaced with respect to the axial direction A. The displacement of the clamping elements 20 with respect to the axial direction A for stretching the cylinder elevator 08 preferably takes place from the inside to the outside, i.e. starting from the center of the cylinder channel 14 related to the axial direction A to an edge of the cylinder channel 14 related to the axial direction A. In the case of a symmetrical trapezoidal deviation, the displacement of the clamping elements 20 preferably takes place symmetrically about a center of the bale of the forme cylinder 07 related to the axial direction. In the case of an asymmetrical trapezoidal deviation, the displacement of the clamping elements 20 preferably also takes place asymmetrically with respect to the center related to the axial direction A of the bale 46 of the forme cylinder 07. In particular, for example, more clamping elements 20 are then displaced in the axial direction A than are displaced against this axial direction A and / or only clamping elements 20 are displaced in or against the axial direction A. A shift that only differs in terms of the amount of distance traveled is also possible. This displacement of the clamping elements 20 is preferably carried out by means of at least one displacement means 27; 34.

The displacement of the clamping elements 20 and thus a stretching and/or relaxation of the cylinder elevator 08 with respect to the axial direction A and/or in the circumferential direction B preferably takes place during a rotation of the forme cylinder 07 carrying the relevant cylinder elevator 08. During this rotation of the forme cylinder 07, the Cylinder elevator 08 preferably brought into contact with a surface, for example a surface of another rotating body. In particular, the rubber cylinder 06 and/or one or more inking rollers 10 and/or one or more dampening rollers 13 are used as such a rotating body. For this purpose, the respective at least one clamping element 20 is preferably first changed with respect to its position relative to the axial direction A and then the end 19 of the cylinder elevator 08, which trails during printing operation, is rolled over by the corresponding rotating body. Alternatively or additionally, the respective at least one clamping element 20 is changed with respect to its position relative to the axial direction A and during this time the end 19 of the cylinder elevator 08, which trails during printing operation, is rolled over by the corresponding rotating body. For example, a change in the position of the respective clamping element 20 in relation to the axial direction A takes place in several successive sub-processes. This enables more precise and gentler tensioning of the cylinder winding 08. In particular, the rollover can then also take place during the sub-processes and/or after the sub-processes.

After the required adequate pressure has been built up and/or the target position of the clamping elements 20 has been reached, the force acting on the clamping elements 20 and, for example, the pressure inside the corresponding hollow body 35 is reduced to a value which is in the static friction area between a surface of the Forme cylinder 07 and an underside of the cylinder elevator 08 lies. This reduction ensures that the force acting on the cylinder elevator 08 is kept relatively small while maintaining the position of the clamping elements 20. In this way, flow and thus gradual and, in particular, unwanted further expansion of the material of the cylinder winding 08 is counteracted.

The displacement of the tensioning elements 20 and thus in particular the stretching and/or relaxation of the cylinder elevator 08 in the axial direction A preferably takes place independently of the tensile stress FZ in the circumferential direction B and more preferably with, in particular, maintaining the tensile stress FZ in the circumferential direction B unchanged and without any prior Elimination of a tensile stress FZ in the circumferential direction B. Preferably, the tensile stress FZ in the circumferential direction B is maintained unchanged during this time. This tensile stress FZ preferably corresponds at most to the reduced tensile stress FZ under which the cylinder lift 08 is permanently clamped on the forme cylinder 07. However, it is also possible to only reduce this temporarily.

In particular, if the register measurement results in a deviation of a target position of a marking serving as a register mark relative to the circumferential direction B from an actual position of the marking serving as a register mark, z. B. the following procedure is carried out to compensate for register deviations and/or register deviations in the circumferential direction B.

In a first embodiment of the method for compensating register deviations and/or register deviations in the circumferential direction B, the dimensions are preferably changed Solution of the cylinder elevator 08 in the circumferential direction B, in particular by changing the position of at least one clamping element 20 with respect to the circumferential direction B. This change in position with respect to the circumferential direction B preferably takes place for several and more preferably for all clamping elements 20.

For this purpose, for example, a pressure in the support element 28 designed as a hollow body 28 that can be changed in terms of its volume is increased, as a result of which the at least one clamping element 20 is moved in the circumferential direction B and the cylinder elevator 08 is correspondingly tensioned and thereby stretched. When the pressure within the support element 28 is reduced, the cylinder elevator 08 relaxes and, after overcoming static friction, the cylinder elevator 08 shortens.

Alternatively or additionally, e.g. B. the at least one support element 25 designed as a clamping spindle 25 is activated, for example rotated, in such a way that a displacement of the corresponding at least one clamping element 20 takes place and thereby an expansion of the cylinder elevator 08 is achieved.

The displacement of the clamping elements 20 and thus in particular a stretching and/or relaxation of the cylinder elevator 08 with respect to the circumferential direction B takes place - as mentioned - preferably during a rotation of the forme cylinder 07 carrying the cylinder elevator 08 in question. During this rotation of the forme cylinder 07, the cylinder elevator 08 is in Brought into contact with a surface, for example a surface of another body of revolution. In particular, the rubber cylinder 06 and/or one or more inking rollers 10 and/or one or more dampening rollers 13 are used as such a rotating body. For this purpose, the respective at least one clamping element 20 is preferably first changed with respect to its position relative to the circumferential direction B and then the end 19 of the cylinder elevator 08, which trails during printing operation, is rolled over by the corresponding rotating body. Alternatively or additionally, the respective at least one clamping element 20 is changed with respect to its position relative to the circumferential direction B and, during this time, the end 19 of the cylinder elevator 08, which trails during printing operation, is rolled over by the corresponding rotating body. For example, a change in the position of the respective clamping element 20 in relation to the circumferential direction B takes place in several successive sub-processes. This enables more precise and gentler tensioning of the cylinder winding 08. In particular, the rollover can then also take place during the sub-processes and/or after the sub-processes.

After the required adequate pressure has been built up and/or the target position of the clamping elements 20 has been reached, the force acting on the clamping elements 20 and, for example, the pressure inside the corresponding hollow body 28 is reduced to a value which is in the static friction area between a surface of the Forme cylinder 07 and an underside of the cylinder elevator 08 lies. This reduction ensures that the force acting on the cylinder elevator 08 is kept relatively small while maintaining the position of the clamping elements 20. In this way, flow and thus gradual and, in particular, unwanted further expansion of the material of the cylinder winding 08 is counteracted. The same preferably applies analogously to the at least one support element 25 designed as a clamping spindle 25.

A change in the dimension of the substrate in the circumferential direction B is, as an alternative or in addition to a change in the dimension of the at least one cylinder elevator 08 in the circumferential direction B, preferably compensated for by a correspondingly controlled and / or regulated rotational movement of the forme cylinder 07. Accordingly, as an alternative or in addition to the above-described change in the dimensions of the cylinder elevator 08, a length compensation is carried out or can at least be carried out in this way, in particular with the help of the drive of the forme cylinder 08. The drive of the forme cylinder 07 is, in particular, preferably designed as an individual drive, more preferably as a direct drive DA.

A ratio between a first angular velocity of the forme cylinder 07 and a second angular velocity of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, is called the speed ratio, in particular the speed ratio between the forme cylinder 07 and impression cylinder 04. The substrate is preferably processed in such a way that during the When processing the substrate, the speed ratio is specifically influenced and/or adjusted in such a way that it deviates from any integer ratio at least temporarily and preferably for the majority of the processing time. Preferably, during processing of the substrate, the speed ratio is not an integer at least at times and preferably more than half of the time. An integer ratio of two values is to be understood in particular as a ratio of such values that, when the value corresponding to the numerator is divided by the value corresponding to the denominator, is one corresponds to a whole number in the mathematical sense. Examples of integer ratios are one to one, two to one, three to one, four to one or similar. Processing of the substrate is preferably understood to mean regular processing of the substrate, for example a printing process and/or a painting process and/or an embossing process and/or a punching process and/or a perforating process. Regular processing is preferably distinguished from a start-up phase of operation and/or a termination phase of operation and/or an interruption of operation.

The substrate is preferably processed in such a way that this speed ratio is changed during the processing of the substrate, in particular the ratio between the first angular speed of the forme cylinder 07 and the second angular speed of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04. This is preferably done During this processing of the substrate, a relative acceleration based on the angular velocities between the forme cylinder 07 on the one hand and the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04 on the other hand. Such an acceleration is preferably at least temporarily positive and/or at least temporarily negative. Particularly in connection with such an acceleration, a change in the speed ratio, more preferably a periodic change in the speed ratio, preferably takes place during this processing of the substrate. A period, i.e. in particular a smallest local and/or temporal interval, after which the periodic change repeats itself, is preferably reached after a respective full revolution or even after an integer fraction of a full revolution of the forme cylinder 07. An integer fraction is a fraction that, when multiplied by a whole number, equals one. However, it can also be provided that the angular velocity of an individual cylinder, in particular the forme cylinder 07 or the impression cylinder 04, within a respective, preferably constant rotation period, i.e. within a respective full revolution or also within a corresponding integer fraction of a full revolution of the forme cylinder 07, is set variably, so that successive revolutions differ from one another with regard to a respective course of the speed ratio.

For example, the forme cylinder 07 is rotated during a full revolution through 360° over at least a first angular range of at least 180° and preferably at least 270° with at least a first peripheral speed of the forme cylinder 07, which is greater than a first peripheral speed of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04. Then this forme cylinder 07 is preferably rotated over at least a relatively small second angular range with at least a second peripheral speed of the forme cylinder 07, which is smaller than a second peripheral speed of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04 In this way, the cylinder elevator 08 of the forme cylinder 07 leads the substrate during the largest part of its revolution determined by the at least one first angular range, as a result of which, for example, the printed image 32 is transferred to the substrate in a shortened manner. The forme cylinder 07 is then rotated relatively slowly, so that the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, catches up with the forme cylinder 07 again. For example, a transfer cylinder 06 preferably, but not necessarily, rotates at a peripheral speed that essentially corresponds to a transport speed of the substrate.

Preferably, the forme cylinder 07 is rotated during a full revolution through 360° over the at least first angular range of at least 180° and preferably at least 270° with at least a first peripheral speed of the forme cylinder 07, which is smaller than a first peripheral speed of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04. Then this forme cylinder 07 is preferably rotated over at least a relatively small second angular range with at least a second peripheral speed of the forme cylinder 07, which is greater than a second peripheral speed of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04 In this way, the substrate leads the forme cylinder 07 during the largest part of the revolution of the forme cylinder 07 determined by the at least one first angular range, whereby, for example, the printed image 32 is transferred to the substrate in an elongated manner. The forme cylinder 07 is then rotated relatively quickly so that it catches up with the transport body 04, in particular cylinder 04 or impression cylinder 04, which guides the substrate. In this case, too, the transfer cylinder 06 arranged for example rotates preferably, but not necessarily, at a peripheral speed that essentially corresponds to the transport speed of the substrate.

The speed ratio is preferably changed by an acceleration necting the forme cylinder 07. Alternatively or additionally, the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, can also be accelerated. However, all transport bodies 04 guiding the substrate, in particular cylinders 04 or impression cylinders 04, are preferably connected to a common main drive and/or gear train 55 of the processing machine, while each forme cylinder 07 is preferably driven independently of it. The forme cylinder 07 therefore preferably has a drive which is independent of the drive of the transfer cylinder 06 contacting the forme cylinder 07 and/or of the inking unit 09 and/or of the drive of the impression cylinder 04 contacting the forme cylinder 07. The individual acceleration of the forme cylinder 07 is therefore to be preferred.

For example, the forme cylinder 07 and/or the cylinder lift 08 of the forme cylinder 07 is in contact with the substrate or the transfer cylinder 06, while the first forme cylinder 07 has an angular position within the at least one first angular range. For example, the forme cylinder 07 and the cylinder elevator of the forme cylinder 08 are out of contact with the substrate and the transfer cylinder 06, while the first forme cylinder 07 has an angular position within the at least a second angular range, in particular because the forme cylinder 07 is oriented such that the cylinder channel 14 of the Forme cylinder 07 is arranged in this at least a second angular range opposite the transfer cylinder 06 and / or the impression cylinder 04 and / or the substrate.

The substrate is preferably processed in such a way that this speed ratio is changed at least twice during the processing of the substrate, for example first reduced and then increased again. Further preferably, the substrate is processed in such a way that during the processing of the substrate this speed ratio is changed at least twice during each complete revolution of the forme cylinder 08, for example first reduced and then increased again. Further adjustments to suit changing circumstances are possible. This is the case, for example, if the forme cylinder 07 is covered with several cylinder elevators 08 one behind the other in the circumferential direction B.

Preferably, such a controlled and/or regulated rotational movement of the forme cylinder 07 takes place to compensate for changes in the substrate and/or the printed image 32, even in the case of at least one cylinder elevator 08 designed as a sleeve.

In other words, during a complete revolution of the forme cylinder 07, a difference angle between the forme cylinder 07 and that guiding the substrate is preferably created during a complete revolution of the forme cylinder 07 in order to adapt the print image 32 emanating from it to the change in the dimension of the substrate and/or to compensate for the printing length by driving the forme cylinder 07 Transport body 04, in particular cylinder 04 or impression cylinder 04, is generated. The drive of the forme cylinder 07 is preferably controlled in such a way that the difference angle between the forme cylinder 07 and the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, is brought from an initial value to a predetermined final value and back to that within one complete revolution of the forme cylinder 07 Initial value is returned. The control can also be carried out in such a way that within one complete revolution of the forme cylinder 07 in several cycles the difference angle between the forme cylinder 07 and the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, is brought from an initial value to at least a predetermined final value and up again the initial value is reset.

For example, an expansion of the cylinder elevator 08 in the axial direction A and an expansion of the cylinder elevator 08 in the rotation direction B take place at least temporarily simultaneously. For example, the printing length is compensated by driving the forme cylinder 07 parallel to and/or at least temporarily simultaneously with at least an expansion of the cylinder elevator 08 in the axial direction A and/or at least an expansion of the cylinder elevator 08 in the circumferential direction B. In another embodiment variant Within the respective cylinder elevator 08 to be adapted to a change in the printing material, the tensile stress FZ in the axial direction A and then the tensile stress FZ in the circumferential direction B of the relevant forme cylinder 07 are built up. The latter variant has the advantage that the required tensile stress FZ in the axial direction A is significantly lower than if the tensile stress FZ was previously applied in the circumferential direction B. This is because the application of the tensile stress FZ in the circumferential direction B causes additional frictional forces that hinder the application of the tensile stress FZ in the axial direction A. The latter variant therefore leads to greater accuracy when compensating for a change in printing material in a printing press.

In one embodiment, depending on the required adjustment, either an expansion of the cylinder elevator 08 in the circumferential direction B or a change in this speed ratio takes place. As long as the necessary adjustment of the print image length in the circumferential direction If the adjustment B does not go beyond an adjustment of the print image length that can be achieved by a maximum expansion of the cylinder elevator 08 in the circumferential direction B, then only an adjustment takes place by means of the expansion in the circumferential direction B. If larger adjustments are necessary in the circumferential direction B, only a change is then preferably carried out instead this speed ratio. The decision is preferably made taking into account at least the data specific to the clamped cylinder lift 08 and/or at least one limit value specific to the clamped cylinder lift 08, which is preferably stored in the control computer. If the control value for displacing the clamping elements 20 in the circumferential direction B exceeds this limit value, the drive of the forme cylinder 07 is instead controlled in such a way that within one revolution of the forme cylinder 07 a change in the speed ratio between the first angular velocity of the forme cylinder 07 and the second angular velocity of the substrate leading transport body 04 takes place.

In another embodiment, a corresponding change in this speed ratio takes place only if the print image length is necessary to adapt beyond the maximum expansion of the cylinder elevator 08 in the circumferential direction B. If the control value for displacing the clamping elements 20 in the circumferential direction B exceeds this limit value, in addition to a displacement of the clamping elements 20, for example up to this limit value, the drive of the forme cylinder 07 is controlled in such a way that a change in the speed ratio between the forme cylinder 07 occurs within one revolution of the forme cylinder 07 first angular velocity of the forme cylinder 07 and the second angular velocity of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04.

The cylinder elevator 08 can be stretched, regardless of its direction, both before and during the processing of a print job. A print job refers to the entirety of the activities required for printing. This means that stretching can be done both before and during a color enema. It can also be done before or during cleaning of the forme cylinder 07 or the inking unit 09. The stretching can also take place before or during processing, in particular printing, i.e. before or during contact of the transfer cylinder 06 or the cylinder elevator 08 with the substrate. If the stretching is to take place before printing, printing is preferably preceded by a previous test print, on the basis of which the required control values are set manually or automatically, e.g. B. can be determined using register measurements.

If the stretching takes place before printing, then preferably if the forme cylinder 07 and/or the cylinder elevator 08 comes into contact with a corresponding rotating body such as the transfer cylinder 06 or the impression cylinder 04 during the stretching, the inking rollers 10 and/or the dampening roller 13 are not included placed on the cylinder elevator 08 designed as a printing plate 08, for example so that the color profile in the inking unit 09 is retained.

If a printed sheet 31 from the sheet feeder of the sheet-fed printing machine, which has a first stack of printed sheets 31, passes through its printing units 01; 02; 03 is transported to the sheet delivery on this sheet-fed printing machine which has a second stack of printed sheets 31, as in the 1 i . V. m. is indicated by the direction of rotation arrows of the impression cylinder 04, this printed sheet 31 experiences a deformation in its geometry, ie in its geometric dimensions, due to various printing process-related influences. A printed sheet 31 is understood here to be a sheet of paper or cardboard with a minimum format of DIN A3. Smaller format sizes are commonly referred to as “sheets.” For example, such a printed sheet 31 is in the printing process due to a pressure in each printing gap it passes through between two interacting printing cylinders of the sheet-fed printing machine, e.g. B. elongated in the printing gap between a transfer cylinder 06 and an impression cylinder 04 cooperating with this transfer cylinder 06. The at least one printing ink applied to the relevant printed sheet 31 in the printing process and possibly a dampening solution used in the printing process introduce moisture into the relevant printed sheet 31, which in the case of a printed sheet 31 made of paper or cardboard, ie made of fibers, leads to an at least partial, in an axial direction The width expansion related to the interacting printing cylinders and possibly also to an at least partial elongation of the relevant printed sheet running along the transport direction.

If printed pages of a type area on the front and back of the same printed sheet are to fit together exactly, these printed pages must be arranged in register on the relevant printed sheet 31. In addition, in a printing process with several printing colors or color separations, an exact, ie positionally accurate, image must be the same Moderate printing of the individual printing colors or color separations one above the other and/or next to one another can be ensured, which is referred to as registration. An error in the register and/or register, which results from the deformation of a printing sheet 31 affecting its geometry due to the aforementioned printing process-related effects, cannot be compensated for by a correct register-containing arrangement of one or more printing forms 08 involved in the printing process. There is therefore a need for a method that solves this problem for adapting at least one length of an area to be designed to be the same size on several printed sheets 31, this area preferably being designed to be rectangular in each case. This area forms z. B. a printed image 32 formed or at least to be formed on the relevant printed sheet 31.

• a) Die jeweilige auf den betreffenden Druckbogen 31 jeweils gleich groß auszubildende Fläche wird jeweils während eines Transports dieser Druckbogen 31 durch die Bogendruckmaschine ausgebildet, wobei sich die anzupassende Länge oder eine der anzupassenden Längen der betreffenden drucktechnisch auszubildenden Fläche längs oder quer oder schiefwinklig zur Transportrichtung des betreffenden durch die Bogendruckmaschine transportierten Druckbogens 31 erstreckt.
• b) In einem an einer mit einer Recheneinheit verbundenen Anzeigeeinrichtung angezeigten Vorschaudatenbild von der auf den jeweiligen Druckbogen 31 jeweils drucktechnisch auszubildenden Fläche oder in einer an der mit der Recheneinheit verbundenen Anzeigeeinrichtung angezeigten fotografischen Abbildung der auf einem der Druckbogen 31 drucktechnisch ausgebildeten Fläche oder durch eine mittels einer mit der Recheneinheit verbundenen Bedieneinrichtung ausgeführte Eingabe in die Recheneinheit von mindestens einer Koordinate, die jeweils eine Position eines in der drucktechnisch auszubildenden oder ausgebildeten Fläche befindlichen Punktes kennzeichnet, wird jeweils mindestens ein Punkt ausgewählt.
• c) Eine jeweilige Position des mindestens einen ausgewählten Punktes wird in der Recheneinheit in einem auf die Bogendruckmaschine bezogenen Koordinatensystem jeweils als ein Bezugspunkt 41 für die Anpassung der mindestens einen Länge der drucktechnisch auszubildenden Fläche festgelegt.
• d) Von einer mit der Recheneinheit verbundenen Erfassungseinrichtung 60 wird von einem eine drucktechnisch ausgebildete Fläche aufweisenden Druckbogen 31 mindestens ein von dem jeweiligen gewählten Bezugspunkt 41 verschiedener, zu der drucktechnisch ausgebildeten Fläche von diesem Druckbogen 31 gehörender Punkt jeweils als ein Messpunkt 42 erfasst.
• e) In dem auf die Bogendruckmaschine bezogenen Koordinatensystem wird eine jeweilige Position des mindestens einen erfassten Messpunktes 42 ermittelt.
• f) Hinsichtlich des den betreffenden erfassten Messpunkt 42 aufweisenden Druckbogens wird von der Recheneinheit ein Ist-Abstand zwischen der jeweiligen Position des mindestens einen von dem betreffenden Druckbogen 31 erfassten Messpunktes 42 und der jeweiligen Position des mindestens einen ausgewählten Bezugspunktes 41 ermittelt.
• g) Der ermittelte Ist-Abstand wird von der Recheneinheit mit demjenigen Soll-Abstand verglichen, den die dem betreffenden erfassten Messpunkt 42 entsprechende Position in der der Festlegung der Position des Bezugspunktes 41 zugrunde liegenden Fläche von der Position des betreffenden Bezugspunktes 41 aufweist.
• h) Die Recheneinheit passt in Abhängigkeit von einer von ihr ermittelten Abweichung des Ist-Abstandes vom Soll-Abstand durch eine Ausgabe eines Steuersignals an eine die auf mindestens einem weiteren Druckbogen 31 die jeweilige Fläche drucktechnisch ausbildende Einrichtung jeweils mindestens eine Länge der auf dem jeweiligen mindestens einen weiteren Druckbogen 31 jeweils gleich groß drucktechnisch auszubildenden Fläche an.

Such a procedure may involve carrying out the following procedural steps:

• a) The respective area to be formed on the relevant printed sheet 31 of the same size is formed during transport of these printed sheets 31 through the sheet-fed printing machine, with the length to be adjusted or one of the lengths to be adjusted of the relevant area to be formed in terms of printing technology being longitudinal or transverse or at an oblique angle to the transport direction of the relevant printed sheet 31 transported by the sheet-fed printing press extends.
• b) In a preview data image of the area to be formed using printing technology on the respective printed sheet 31, displayed on a display device connected to a computing unit, or in a photographic image of the area formed using printing technology on one of the printed sheets 31, displayed on the display device connected to the computing unit, or by means of An input into the computing unit of at least one coordinate, which in each case identifies a position of a point located in the area to be formed or formed in terms of printing technology, is carried out by an operating device connected to the computing unit, at least one point is selected in each case.
• c) A respective position of the at least one selected point is defined in the computing unit in a coordinate system related to the sheet-fed printing press as a reference point 41 for the adjustment of the at least one length of the area to be formed in terms of printing technology.
• d) By a detection device 60 connected to the computing unit, at least one point that is different from the respective selected reference point 41 and belongs to the printing-technical surface of this printed sheet 31 is recorded as a measuring point 42 from a printing sheet 31 having a printing-technically formed surface.
• e) A respective position of the at least one recorded measuring point 42 is determined in the coordinate system related to the sheet-fed printing press.
• f) With regard to the printed sheet having the relevant recorded measuring point 42, the computing unit determines an actual distance between the respective position of the at least one measuring point 42 detected by the relevant printed sheet 31 and the respective position of the at least one selected reference point 41.
• g) The determined actual distance is compared by the computing unit with the target distance that the position corresponding to the relevant detected measuring point 42 in the area on which the determination of the position of the reference point 41 is based has from the position of the relevant reference point 41.
• h) The computing unit adapts, depending on a deviation of the actual distance from the target distance determined by it, by outputting a control signal to a device that forms the respective surface on at least one further printed sheet 31 in each case at least one length of the respective at least another printed sheet 31, each of the same size, has an area to be formed in terms of printing technology.

In the aforementioned method, the respective position of the at least one reference point 41 is excluded from the adjustment of the at least one length of the relevant surface. In a preferred embodiment of this method, several measuring points 42 are recorded simultaneously in the same recording process by the detection device 60 connected to the control computer or to the computing unit. These measuring points 42 can basically be distributed arbitrarily on the printed sheet 31, but it is advantageous to each z. B. to detect in an edge area of the relevant printed sheet 31. In the case of several measuring points 42 detected by the detection device 60, the computing unit determines an angle spanned between two of these measuring points 42 and emanating from their common reference point 41 as an actual angle and compares the determined actual angle with one for these two measuring points 42 in conjunction with the relevant reference point 41 provided target angle and, in the event of an impermissible deviation between the actual angle and the target angle, adjusts the control signal to be output to the device that forms the respective surface in terms of printing technology on at least one further printed sheet 31 in order to minimize this deviation. In the case of several measuring points detected by the detection device 60, the computing unit preferably sets a different reference point 41 for at least one of these measuring points 42 than for at least one other of these measuring points 42. The determination of several reference points 41 for the same printed sheet 31 in the case of several of the detection device 60 Measuring points 42 recorded with respect to the relevant printed sheet 31 provide the possibility of locally compensating for deformations of a printed sheet 31. This possibility is particularly advantageous if an application of at least one printing ink and/or an entry of dampening solution is locally very different on the printed sheet 31 in question and therefore locally very different deformations occur with regard to this printed sheet 31, which are caused by only one and the same deformation in each case Measures triggered by the computing unit cannot be compensated or at least not sufficiently compensated.

A first measure triggered by the computing unit is, for example: B. in that there are several printing units 01; 02; 03 having a sheet-fed printing machine, a drive, in particular a direct drive DA of a first plate cylinder 07 of this sheet-fed printing machine compared to the respective drive, in particular the respective direct drive DA of at least one other, i.e. H. second plate cylinder 07 of this sheet-fed printing machine is controlled in such a way that a positive or negative acceleration of the at least one plate cylinder 07 in question results in an offset in the angle of rotation between the first plate cylinder 07 and the at least one other, i.e. H. second plate cylinder 07, this offset in the angle of rotation between the first plate cylinder 07 and the at least one other, i.e. H. second plate cylinder 07 z. B. only exists for one sheet piece, this sheet piece being smaller than a full revolution of the plate cylinder 07 in question. In this respect, the rotation of the plate cylinder 07 in question is impressed with a modulation that compensates for the errors set as a result of the deformations of the printing sheet 31. A second measure triggered by the computing unit can e.g. B. in an axial adjustment of at least one of the plate cylinders 07 involved in the printing process that compensates for the errors set as a result of the deformations of the printing sheet 31.

Another measure triggered by the computing unit is, for example: B. in that the printing forme 08 arranged on one of the plate cylinders 07 is stretched or compressed in the circumferential direction B of this plate cylinder 07 and/or in its axial direction A, in particular by means of a displacement of the at least one clamping element 20. The deformations of the printing sheet 31 form the surface to be formed in terms of printing technology, for example. B. trapezoidal or parallelogram-like or at least one edge with at least one curvature instead of rectangular.

In a very advantageous embodiment of the aforementioned method, the adjustment of the at least one length of the relevant surface is carried out as a function of at least one process parameter, the process parameter being a distribution of an area coverage with at least one printing ink on the relevant printed sheet 31 or the printing speed of the sheet-fed printing machine or a torque a main drive of the sheet-fed printing press or a torque of a direct drive DA of a plate cylinder 07 of the sheet-fed printing press or a pressure in a printing gap passed by the relevant printed sheets 31 between two interacting printing cylinders of the sheet-fed printing press or a dampening solution guide in a relevant printing unit 01; 02; 03 of the sheet-fed printing machine or a wet expansion coefficient of the material of the relevant printed sheets 31 or a moisture-related difference in the relevant printed sheets 31 between their stack in a sheet feeder and in a sheet delivery of the sheet-fed printing machine.

The adaptation of the relevant length of the relevant area to be formed in terms of printing technology and/or the adaptation of the actual angle to the target angle is generally carried out. d. R. carried out in ongoing production on the sheet-fed printing press.

6 shows an example of a printed sheet 31 with a z. B. rectangular surface 32 or at least to be formed, this surface 32 z. B. represents a print image 32. With regard to this printed sheet 31, a Cartesian coordinate system related to the sheet-fed printing press applies, the origin 33 of which is placed in a plane which is orthogonal to the transport plane of the printed sheet 31 and runs along the transport path of this printed sheet 31, this plane being at the position of half an axial length usable for the printing process a printing cylinder, e.g. B. an impression cylinder 04 or a forme cylinder 07 or a transfer cylinder 06 of this sheet-fed printing press is arranged. An end of this printed sheet 31 leading in the transport direction is during its transport through the sheet-fed printing press with a fastener, e.g. B. held with a clamping means on the lateral surface of the relevant impression cylinder 04. A trailing end of this printed sheet 31 in the transport direction is z. B. loosely on the lateral surface of the relevant impression cylinder 04. An abscissa X of the coordinate system extends z. B. in the axial direction A of the printing cylinder, e.g. B. the impression cylinder 04 or the forme cylinder 07 or the transfer cylinder 06 of this sheet-fed printing press, whereas the associated ordinate Y in the circumferential direction B of this printing cylinder, e.g. B. this impression cylinder 04 or this forme cylinder 07 or this transfer cylinder 06 runs.

In order to be able to determine the need for correction due to a deformation of the printed sheet 31, at least one reference point 41 is set in a computing unit with reference to the coordinate system related to the sheet-fed printing press. This is done by one of the three method steps mentioned below, namely in that either in a preview data image of the area 32 to be formed on the respective printed sheet 31, which is displayed on a display device connected to the computing unit, or in a photographic image displayed on the display device connected to the computing unit Image of the surface 32 formed by printing technology on one of the printed sheets 31 or by an input into the computing unit carried out by means of an operating device connected to the computing unit of at least one coordinate, which in each case identifies a position of a point located in the surface 32 to be formed or formed by printing technology, in each case at least a point is selected and the respective position of the relevant selected point is determined as a reference point 41 for the adjustment of the at least one length of the surface 32 to be formed by printing technology. The respective position of the at least one reference point 41 is assumed not to require correction and is therefore preferably excluded from the adjustment of the at least one length of the relevant surface 32.

Then a detection device 60 connected to the computing unit, e.g. B. with at least one camera from a printing sheet 31 having a printing-technically designed surface 32, at least one point that is different from the respective selected reference point 41 and belongs to the printing-technically designed surface 32 of this printing sheet 31 is recorded as a measuring point 42. The computing unit then determines a respective position of the at least one detected measuring point 42 in the coordinate system related to the sheet-fed printing press. If the same measuring point 42 is detected by the detection device 60 across several printed sheets 31, the computing unit determines z. B. not only the position of this measuring point 42 on the respective printed sheet 31, but preferably also forms an average of the respective positions over a previously determined number of printed sheets 31, in which case this average value formed for the position of the relevant measuring point 42 is then subjected to a further evaluation, e.g. B. a distance calculation to the relevant reference point 41 is used as a basis.

After both the respective position of at least one reference point 41 has been determined in the computing unit and the respective position of at least one recorded measuring point 42 has been determined - directly or as an average - in each case with reference to the coordinate system related to the sheet-fed printing press, the computing unit takes into account of the printed sheet 31 having the relevant detected measuring point 42, in particular an actual distance s1; s2 is determined between the respective position of the at least one measuring point 42 detected by the relevant printed sheet 31 and the respective position of the at least one selected reference point 41. The determined actual distance s1; s2 is compared by the computing unit with the target distance that the position corresponding to the relevant detected measuring point 42 in the surface 32 on which the determination of the position of the reference point 41 is based has from the position of the relevant reference point 42. The target distance is z. B. provided by prepress or by a production planning system responsible for controlling the printing process. The computing unit then adjusts depending on a deviation of the actual distance s1 that it determines; s2 from the target distance by outputting a preferably electrical control signal to a device which forms the respective surface 32 on at least one further printed sheet 31, ie to at least one of the printing units 01; 02; 03 of the sheet-fed printing machine, in each case at least one length of the surface 32 to be formed with the same size on the respective at least one further printed sheet 31. In the case of several measuring points 42 detected simultaneously by the detection device 60, preferably in the same detection process, the computing unit preferably also determines an angle φ spanned between two of these measuring points 42 and emanating from their common reference point 41 as an actual angle and compares the determined actual angle one provided for these two measuring points 42 in connection with the relevant reference point 41, e.g. B. from the pre-press department or from the production planning system responsible for controlling the printing process set target angle. In the case of a deviation between the actual angle and the target angle that exceeds a previously defined tolerance limit and is therefore impermissible, the computing unit then adapts the control signal to be output to the device that forms the respective surface 32 in terms of printing technology on at least one further printed sheet 31 in order to minimize this deviation . The adaptation of the relevant length of the relevant surface 32 to be formed in terms of printing technology and/or the adaptation of the actual angle to the target angle is usually carried out during ongoing production of the sheet-fed printing press.

As described, a method for adapting a cylinder elevator 08 to a change in printing material in printing presses can be carried out, in which the printing press has at least two printing units 01; 02; 03, each printing unit 01; 02; 03 comprises a printing forme cylinder 07 with at least one clamping device 15 for tensioning a cylinder elevator 08 and a printing material-carrying cylinder 04, the clamping device 15 having a clamping element 18 or a clamping element 18, which is used to adapt the cylinder elevator 08 to the change in printing material in the circumferential direction B of the printing forme cylinder 07 is displaced and / or is divided into several clamping segments 20 or individual clamping elements 20, which are displaced in the axial direction of the printing forme cylinder 07, in which the adjustment of the cylinder elevator 08 to the change in printing material takes place under contact with the surface of at least one rotating body. As a body of revolution z. B. a rubber cylinder 06, an inking roller 10 or a dampening roller 13 is used. The cylinder elevator 08 is under a tensile stress FZ during contact with the rotating body in the circumferential direction B, this tensile stress FZ maximally corresponding to the tensile stress FZ under which the cylinder elevator 08 is clamped on the printing forme cylinder 07.

A device is also provided for adapting a printed image and/or a cylinder elevator 08 to a change in printing material in printing machines, the printing machine having at least two printing units 01; 02; 03, each printing unit 01; 02; 03 comprises a printing forme cylinder 07 and a printing material-carrying cylinder 04 and at least one cylinder elevator 08 is clamped on the respective printing forme cylinders 07, such that the respective printing forme cylinder 07 each has a cylinder channel 14 with a clamping device 15 assigned to it, such that the relevant clamping device 15 has at least one tensioning element 18, 31, through which the relevant cylinder elevator 08 can be changed in the circumferential direction B and in the axial direction A of the respective printing forme cylinder 07 and the respective printing forme cylinder 07 has a drive which is used to generate a difference angle between the relevant printing forme cylinder 07 and the printing material-carrying one Cylinder 04 is formed during the rotation of the respective printing forme cylinder 07, the clamping elements 18, 31 being remotely adjustable. At least one of the clamping elements 18, 31 is preferably displaceable in the circumferential direction B of the respective printing forme cylinder 07, with at least one of the clamping elements 18, 31 being divided into clamping segments 20, the clamping segments 20 each being displaceable laterally starting from the center of the cylinder elevator 08 in question.

Alternatively or additionally, a device for adapting a printed image and/or a cylinder lift 08 to a change in printing material in printing presses is provided, the printing press having at least two printing units 01; 02; 03, each printing unit 01; 02; 03 comprises a printing forme cylinder 07 with at least one clamping device 15 for clamping a cylinder elevator 08 and a cylinder 04 that carries the printing material, the clamping device 15 having a clamping element 18 divided into several clamping segments 20; 31, the clamping segments 20 can be displaced in the axial direction A of the respective printing forme cylinder 07 to change the dimension of the relevant cylinder elevator 08 and the respective printing forme cylinder 07 has a drive which is used to generate a difference angle between the relevant printing forme cylinder 07 and the printing material-carrying cylinder 04 during the Circulation of the printing forme cylinder 07 in question is formed, with the clamping segments 20 being assigned at least one activatable force generating element 35. The force generating element 35 is z. B. as a hydraulic means or as a pneumatic means, e.g. B. as a hose, or as an electromechanical means, e.g. B. designed as an electric motor.

Furthermore, a device for adapting a printed image and/or a cylinder lift 08 to a change in printing material can be provided in printing machines, the printing machine having at least two printing units 01; 02; 03, each printing unit 01; 02; 03 each comprises a printing forme cylinder 07 with at least one clamping device 15 for tensioning a cylinder elevator 08 and a printing material-carrying cylinder 04, the clamping device 15 having a clamping element 18, 31 which can be displaced in the circumferential direction B of the printing forme cylinder 07 in question in order to adapt the cylinder elevator 08 to the change in printing material and is divided into several clamping segments 20, which are displaceable in the axial direction A of the relevant printing forme cylinder 07, with the clamping segments 20 at least an activatable force generating element 35 is assigned. The force generating element 35 is z. B. as a hydraulic means or as a pneumatic means, e.g. B. as a hose, or as an electromechanical means, e.g. B. designed as an electric motor.

A device for adapting a printed image and/or a cylinder elevator 08 to a change in printing material in printing machines can also be provided, the printing machine having at least two printing units 01; 02; 03, each printing unit 01; 02; 03 each comprises a printing forme cylinder 07 with at least one clamping device 15 for tensioning a cylinder elevator 08 and a cylinder 04 that carries the printing material, the clamping device 15 having at least one clamping element 18, which is designed in such a way that the cylinder elevator 08 can be changed remotely in such a way that the clamping element 18 can be displaced in the circumferential direction of the printing forme cylinder 07 in question, with a pneumatic means, e.g. B. a hose is provided.

Furthermore, with the previously described several printing units 01; 02; 03 and/or processing machine with coating units, e.g. B. printing machine, in particular sheet-fed printing machine, a method can be operated in which, while the sheet-fed printing machine is executing a current print job, at least one printing unit 01; 02; 03 / Varnish unit from the group of printing units 01 executing the current print job; 02; 03 / Lackwerke is spun off and at this printing unit 01; 02; 03 / coating unit a follow-up order is prepared in such a way that in a control computer both the order-related data of the directly on this printing unit 01; 02; 03 / varnish unit previously executed print job as well as that on this printing unit 01; 02; 03 / Varnishing unit following print job are provided, that the divergence of the order-related data is determined, that on this basis the optimal sequence and the duration of the processing steps for the preparation of the subsequent job is calculated, that the printing unit 01; 02; 03 / coating unit is prepared for the subsequent order based on the calculated values and that this printing unit 01; 02; 03 /lackwerk is integrated to carry out the follow-up order. The control computer can determine both the values for the zonal area coverage of the printing unit 01; 02; 03 / Lackwerk immediately beforehand print job as well as that of the subsequent job are provided, whereby the divergence of these data serves as the basis for calculating the optimal sequence and the duration of the processing steps for the preparation of the subsequent job. A sequence includes, for example: B. at least two of the processing steps: clean printing, washing the inking rollers, changing the printing plates, loading a new color profile, inking the inking unit or inking the printing plates. A time at which the preparation of the follow-up order begins is e.g. B. calculated in such a way that the start of the preparation of the follow-up order is determined so that at the time of integrating the printing unit 01; 02; 03 /Lackwerks preparation for the follow-up order has been completed. The integration of the printing unit 01; 02; 03 / paintwork is carried out e.g. B. immediately after completion of the preparations, e.g. B. immediately after the optimal coloring of the inking unit has been achieved, the printing plate is colored and integration takes place. Integration into the ongoing printing process is preferably done on the fly.

Reference symbol list

01

Printing unit

02

Printing unit

03

Printing unit

04

Cylinder, impression cylinder, transport body

05

Sheet transport device, transfer drum, transfer drum

06

Cylinders, transfer cylinders, blanket cylinders

07

Cylinder, forme cylinder, plate cylinder

08

Cylinder winding, printing form, printing plate, lacquer plate, lacquer cloth

09

Inking

10

Ink applicator roller

11

Inking roller

12

Dampening system

13

Dampening roller

14

Cylinder recess, cylinder channel

15

Fastening device, tensioning device

16

Fasteners, clamping means, front

17

End, leading (08)

18

Tensioning element, tensioning element, fastening means, clamping means, rear

19

End, trailing (08)

20

Clamping element, clamping segment

21

Elevator memory, disk cassette

22

Rotary introduction

23

Clamping element, terminal strip, outer

24

Clamping element, terminal strip, inner

25

Support element, clamping spindle

26

Channel (22)

27

Displacement means, displacement spindle, hollow body, displacement hose

28

Support element, hollow body, tension hose, hose

29

Channel wall (07)

30

Holder (22)

31

Print sheet

32

print image; Area

33

Origin of a coordinate system

34

Displacement means

35

Force generating element, force generator, displacement drive, first; Hollow body, expansion hose, pneumatic

36

Force transmission element, force transmitter, spiral spring, first

37

junction, first; Cylinder bearing

38

junction, second; Clamping element bearing

39

strength (35)

40

Restoring element, compression spring, tension spring

41

reference point

42

measuring point; Passport mark

43

inner part (22)

44

Outer part (22)

45

Dovetail guide

46

bale (07)

47

Rotation axis (07)

48

Guide rail

49

Reason

50

-

51

Spring element

52

bracket

53

Pistons

54

-

55

Wheel train

56

Control unit

57

Overlay Calculator

58

first correction signal

59

Computing unit

60

Detection device

61

second correction signal

62

Control signal

63

Drive control

64

Connection

65

Connection

66

Connection

67

Connection

68

Connection

69

changeover valve

70

check valve

71

Program mask

72

Control element

73

Setting option

74

Setting option

A

Direction, transverse direction, axial

b

Direction, circumferential direction

THERE

Direct drive

FZ

Counterforce or tensile stress of the cylinder winding (08)

FF

Counterforce of the spring element (51)

FH

Pressure or driving force of the hollow body (28)

FA; FB

Managers along the guide rail (48)

FAr; FBr

Frictional forces along the guide rail (48)

KW1

first angle-related correction values

KW2

second angle-related correction values

LW1

Actual position values of the first printing cylinder

LW2

Actual position values of the other printing cylinder

S

travel

X

Abscissa of the coordinate system

Y

Ordinate of the coordinate system

a

Distance

b

Distance

s1; s2

Actual distance

φ

angle

Claims (10)

Cylinder of a printing press, with at least one rotary insertion (22) arranged on one of its end faces at least for introducing a fluid into the cylinder (07) and into a plurality of hollow bodies (27; 28; 35) arranged in or on the cylinder (07), the relevant Rotary insertion (22) coaxially has a rotatable inner part (43) and a non-rotatable outer part (44), the hollow bodies (27; 28; 35) arranged in or on the cylinder (07) each being changeable in terms of their volume and during rotation of the cylinder (07) are acted upon or at least can be acted upon with the fluid, the respective volume of the respective hollow body (27; 28; 35) being changeable by increasing or reducing an amount of fluid arranged inside the relevant hollow body (27; 28; 35). , wherein the relevant rotary insertion (22) has a channel (26) arranged in its center, characterized in that the rotary insertion (22) is designed to have multiple channels, the relevant rotary insertion (22) in addition to its channel (26) arranged in its center has at least one further channel (26) outside its center, the fluid being guided or at least able to be guided through the plurality of channels (26) of the relevant rotary insert (22), each of these channels (26) having a connection (22) on the rotary insert (22). 64; 65; 66; 67; 68) for introducing and/or discharging the respective fluid, wherein during the rotation of the cylinder (07), the fluid guided through the channel (26) arranged in the center of the relevant rotary insertion (22) is permanently pressurized and that is through the at least a channel (26) which is guided or at least can be guided outside the center of this rotary insertion (22) is temporarily and/or periodically depressurized. Cylinder after Claim 1 , characterized in that several channels (26) of the relevant rotary insert (22) are each acted upon or at least can be acted upon with fluids of different pressures during the rotation of the cylinder (07). Cylinder after Claim 1 or 2 , characterized in that at least one fastening device (15) arranged in a cylinder recess (14) is provided, the at least one fastening device (15) being designed as a holding device and/or as a clamping device. Cylinder after Claim 3 , characterized in that the at least one fastening device (15) has a plurality of fastening means (16; 18) for holding at least one cylinder elevator (08) on the lateral surface of the cylinder (07) and / or at least one tensioning element (20) for tensioning the cylinder elevator (08 ) on the cylinder (07) and / or at least one displacement means (34) for changing the position of at least one of the clamping elements (20) with respect to an axial direction (A) of the cylinder (07) and for stretching the cylinder elevator (08) with respect to the axial direction (A) and / or for changing the position of at least one of the clamping elements (20) with respect to a circumferential direction (B) of the cylinder (07) and for stretching the cylinder elevator (08) with respect to the circumferential direction (B). Cylinder after Claim 4 , characterized in that the plurality of fastening means (16; 18) and / or the at least one clamping element (20) and / or the at least one displacement means (34) are each by means of the relevant hollow body (27; 28; 35), which can be changed in terms of its volume. are movable. Cylinder after Claim 4 or 5 , characterized in that in the case of an existing clamping element (20), this at least one clamping element (20) can be moved bidirectionally in the axial direction (A) of the cylinder (07) and / or in the circumferential direction (B) of the cylinder (07). Cylinder after Claim 4 or 5 or 6 , characterized in that the respective at least one hollow body (27; 28; 35), which can be changed in terms of its volume, of the plurality of fastening means (16; 18) and / or the at least one displacement means (34) is each connected to the center of the relevant rotary insertion (22 ) arranged channel (26) is or are connected. Cylinder after Claim 4 or 5 or 6 or 7 , characterized in that at least one check valve (70), each having an unlocking device, is present, the respective at least one hollow body (27; 28; 35), which can be changed in terms of its volume, of the plurality of fastening means (16; 18) and / or the Fluid guided by at least one displacement means (34) in each case by means of the relevant fluid Check valve (70) is locked or at least lockable. Cylinder after Claim 8 , characterized in that the pressure of the fluid directed to the respective at least one hollow body (27; 28; 35), which can be changed in terms of its volume, of the plurality of fastening means (16; 18) and / or the at least one displacement means (34) is each carried out by an actuation the respective unlocking device of the relevant check valve (70) can be reduced. Cylinder after Claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8th or 9 , characterized in that at least one remotely operable, controllable or regulatable valve (69) is provided, by means of which an internal pressure in the volume-changeable hollow body (27; 28; 35) is set or at least adjustable.

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