EP1539495A1

EP1539495A1 - Devices and methods for setting the contact pressure of a displaceably mounted roller

Info

Publication number: EP1539495A1
Application number: EP03798064A
Authority: EP
Inventors: Georg Schneider; Bernd Klaus Faist; Peter Jentzsch
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2002-09-21
Filing date: 2003-09-05
Publication date: 2005-06-15
Anticipated expiration: 2023-09-05
Also published as: EP1570987A2; US20080229960A1; DE10261984A1; US7765930B2; DE10261983A1; US7387069B2; JP2005538876A; EP1570985A3; JP4307382B2; CN101041286B; WO2004028810A1; ATE461042T1; DE10261985A1; US20080229961A1; EP1570986B1; CN1688443A; CN101041286A; AU2003266200A1; EP1570987A3; EP1570985A2

Abstract

Device for adjusting the pressing pressure between an adjustable first roller (21) and a second roller (22) and/or for adjusting the first roller on the second roller in a printing machine comprises an actuator (34) impinged by a pressure which presses the first roller with an adjustable force in the direction of the second roller. The pressure of the pressure medium can be adjusted using a valve. A switching unit is provided by which the valve is connected to the actuator. An independent claim is also included for a process for adjusting the pressing pressure between an adjustable first roller and a second roller and/or for adjusting the first roller on the second roller in a printing machine. Preferred Features: Two valves are provided to adjust the pressure of actuator. The valves are connected to the actuator of the rollers by switching the switching unit. The valves are formed as flow regulating valves.

Description

description

Devices and methods for adjusting the contact pressure of an adjustable roller

The invention relates to devices and methods for adjusting the contact pressure of an adjustable roller according to the preamble of claim 1, 20, 22, 28, 29, 38, 41 or 46.

In conventional printing presses, such as web-fed rotary printing presses, there are a large number of rollers. In particular, inking rollers are provided which serve to transfer the ink from an ink storage device to the plate cylinder. The ink transferred to the plate cylinder can be dosed by the ink rollers, so that the ink is transferred as a uniform film of a certain thickness. Faults such as speed fluctuations and torsional vibrations can be compensated for.

In addition, dampening unit rollers can be provided in the printing press, which transfer a dampening solution, for example water, to the printing unit.

Roll pairs are often formed from mutually engaging rolls in which at least one of the rolls has a cylindrical surface made of elastic material, so that this cylindrical surface can be deformed at least slightly depending on the contact pressure of the opposite roll. As a result, the elastic deformation of the roller surface results in a contact region extending in a straight line between the rollers, which is referred to as a contact strip. The width of the contact strip can be varied by creating the contact pressure between the rollers, the width of the contract strip having a considerable influence on the printing result. If, for example, the contact strip is too narrow in an inking unit, it will not transfer enough color, whereas in the case where the contact strip is too wide, the elastic roller can be damaged by the resulting flexing work.

In order, in particular, to be able to always correctly set the strip width depending on the operating conditions, for example the temperature of the printing presses or their degree of wear, it is necessary to mount the one roller so that it can be adjusted with an actuator with an adjustable force in the direction of the opposite roller can be pressed. If the correct contact pressure is then found between the two rollers, a fixing device for fixing the first roller relative to the second roller is actuated in order to maintain the contact pressure permanently.

DE 197 19305 A1 discloses a device for adjusting the contact pressure between two rollers. In the bearing arrangement described there, the adjustably mounted roller is pressed against the opposite roller by a spring, which is supported on the frame of the printing press. As a result, depending on the spring characteristic selected, a certain contact pressure between the two rollers always arises. To fix the roller in the pressed-on position, a clamping mechanism with a clamping lever and clamping plate is described, by means of which the roller axis can be fixed to the frame of the printing press by a frictional connection.

From DE 199 19733 A1 a device for the semi-automatic setting of rolls is known, in which the adjustably mounted roll is held in a roll holder, which in turn is mounted on a frame holder arranged fixed to the frame. Roller holder and frame holder can be moved against each other and are connected to each other by resilient means. The resilient means have a certain pretension so that the roll, which is adjustably mounted on the roll holder, can be pressed against the opposite roll with a certain contact pressure. To lock the roller holder on the frame holder Locking bolts are provided, by means of which the roller holder can be clamped to the frame holder by friction.

DE 3808 142 A1 describes a device for mounting two cylinders. The contact pressure between two rolls that can be turned on and off can be changed by changing the pressure of the pressure medium. A switchover device is also arranged, with which the pressure medium can optionally be guided to different actuators.

DE-OS 16 11 303 discloses a device for switching a printing cylinder on and off of a gravure printing machine, a pressure reducing valve being provided.

The invention has for its object to provide devices and methods for adjusting the contact pressure of an adjustable roller.

The object is achieved by the features of claim 1, 20, 22, 28, 29, 38, 41 or 46.

In the devices, the actuator for setting the contact pressure is designed in the manner of a pressure body which can be acted upon by a pressure medium, a prestressed gas, in particular compressed air. Valves are provided to adjust the pressure of the pressure medium in order to be able to change the contact pressure. Since a multiplicity of adjustable rollers are provided on a dampening or inking unit, a number of valves corresponding to the number of actuators would normally be necessary, which meant a high outlay on equipment. This high outlay is avoided by providing a switchover device with which the control valves can optionally be connected to different actuators. In other words, this means that the adjustable rollers can then no longer all be adjusted simultaneously, but rather only the actuators can be actuated, which are connected to the adjusting valves via the switching device. Depending on the training of the dyeing or For setting the entire inking or dampening unit, however, a few valves are sufficient to successively adjust the contact pressure of the various adjustable rollers.

According to a preferred embodiment, only two valves are provided, with which the pressure of two actuators can then be adjusted simultaneously on an adjustable roller. To set the various adjustable rollers, the procedure is then such that an adjustable roller is adjusted in each case by actuating the two valves and the adjustment is fixed after adjustment by actuating the fixing device. After fixing, you can continue with the next adjustable roller.

According to the method, the angular position of the second roller against which the first roller is pressed with an adjustable contact pressure is recorded. By checking this angular position, it is possible that the pressing or setting of the adjustable roller is then carried out only in certain angular positions of the second roller.

This type of pressure control is particularly important in the case of forme cylinders, on the circumference of which fastening means are provided for fastening the pressure plates. If the adjustment or adjustment of the adjustable rollers is carried out in an angular position in which the adjustable roller comes to rest on the fastening device of the forme cylinder, the set values are falsified by the changed diameter in the area of the fastening device. This falsification can be prevented by checking the angular position of the second roller.

According to a further preferred embodiment, the contact pressure is set and / or the first roller is adjusted to the second roller while the rollers are rotating at the same time. Embodiments of the invention are shown in the drawings and are described in more detail below.

Show it:

Figure 1 is a schematically illustrated device for adjusting the contact pressure between two rollers in longitudinal section.

FIG. 2 shows the device shown schematically in cross section according to FIG. 1 in a basic position;

3 shows the device shown schematically in cross section according to FIG. 1 in a deflected position;

4 shows the device according to FIG. 1 in a perspective view from the front;

5 shows a second exemplary embodiment of an actuator for a device in cross section;

6 shows an inking unit with a plurality of adjustable rollers for engagement on a forme cylinder;

Fig. 7 is a switching device for the optional switching of two valves between different actuators.

1 shows a device 20 for adjusting the contact pressure between a first roller 21 and a second roller 22. The roller 21 can be detachably fastened with the ends of its axis 23 or pin to a quick-release fastener 24 provided on the device 20. Such quick fasteners are from the stand known in the art and have a semicircular bearing shell, in which the ends of the axis 23 can be inserted. By fastening an upper bearing shell, not shown in FIG. 1, the axis 23 can then be fixed on the quick-release fastener 24.

The device 20 is essentially constructed from a frame holder 26 and a roller holder 27, which can be displaced relative to one another in a positioning plane that extends perpendicular to the plane of the drawing. The frame holder 26 is constructed from a base plate 28, which can be pivotably attached to the frame of a printing press, for example by means of a swivel arm, and a sleeve body 29. On the side facing the roller 21, the sleeve body 29 has a recess 31 into which a cylindrical section 32 of the roller holder 27 engages. The inside diameter of the recess 31 or the outside diameter of the section 32 is selected such that a circularly cylindrical gap 33 with a gap width of approximately 1 mm to 10 mm, in particular approximately 2 mm, is formed in the basic position. The maximum adjustment range for adjusting the roller holder 27 relative to the frame holder 26 is defined by the gap 33.

In order to be able to implement the adjusting movements required when adjusting the roller 21 or to be able to apply the desired contact pressure between the roller 21 and the roller 22, a total of four actuators 34, designed in the manner of pressure hoses 34, are distributed in the gap 33 over the circumference which only two are shown in section in Fig. 1, arranged. The pressure chambers 36 formed by the wall of the actuators 34 can be pressurized via feed lines 48 (not shown in FIG. 4). Depending on the respective pressure conditions in the four actuators 34, a resulting force acts on the roller holder 27, so that by appropriately controlling the pressure in the actuators 34, the roller 21 can be pressed against the roller 22 with the desired contact pressure. Since the air cushion under pressure in the actuators 34 is compressible mechanical faults can be absorbed by the resulting spring action.

In order to fix the roller holder 27 relative to the frame holder 26, lamella elements 37 are fastened to the roller holder 27 and are arranged in a meshing manner with lamella elements 38 fastened to the sleeve body 29 to form a lamella package. For frictional clamping of the lamella pack 37 and 38 formed from the lamella elements 37 and 38, a stamp 39 with a T-shaped cross section is provided, the circular stamp head 40 of which has an annular flange

41 comes to rest on the outermost slat element 37 or 38 of the slat package. At the opposite end of the plunger 39, a pressure plate 42 is fastened, on which the spring force of a spring element 43 designed in the manner of a plate spring assembly 43 acts. The spring element 43 is biased between the pressure plate

42 and the sleeve body 29 are mounted, so that the plate assembly formed by the plate elements 37 and 38 is clamped by the spring force which is transmitted from the punch 39 to the plate elements 37 and 38.

In order to adjust the roller holder 27 relative to the frame holder 26, in particular when adjusting the contact pressure between the rollers 21 and 22, the fixing device formed by the lamella elements 37 and 38 or the punch 39 and the pressure plate 42 must be released. For this purpose, a pressure connection 44 is provided in the base plate 28, through which a pressure chamber 46 between the pressure plate 42 and the base plate 28 can be acted upon by a pressure medium, for example compressed air. As soon as the air pressure acting on the pressure plate 42 exceeds the spring force of the spring element 43, the plunger 39 is lifted from the outermost lamellar element 37 or 38 to such an extent that these are no longer frictionally clamped and can be displaced relative to one another.

The contact pressure between the rollers 21 and 22 is set, for example in the following way. First, the pressure chamber 46 is pressurized with sufficient pressure so that the lamella elements 37 and 38 are no longer frictionally clamped. Subsequently, the actuators 34 are each subjected to just enough pressure that the desired contact pressure is formed between the rollers 21 and 22 or between the roller 21 and other rollers, not shown in FIG. 1, and leads to a contact strip of the desired width. As soon as the correct setting with the desired contact pressure between the rollers 21 and 22 is found, the pressure chamber 46 is depressurized, as a result of which the plunger 39 clamps the lamella elements 37 and 38 together, so that the roller holder 27 is fixed in the desired position relative to the frame holder 26. Finally, the actuators 34 are depressurized.

2 and 3, the principle of operation of the device 20 is shown in a schematic manner for the required actuating movement. FIG. 2 shows the frame holder 26 with the recess 31 and the portion 32 of the roller holder 27 engaging therein. By the choice of the dimensions, a gap 33 is formed between the frame holder 26 and the portion 32 of the roller holder 27, in which the gap shown in FIG and 3 are arranged only schematically by actuators 34 indicated by force arrows. The possible actuating movements between the frame holder 26 and the roller holder 27 are defined by an actuating plane which extends in the drawing plane in the representation of FIGS. 2 and 3, the actuating range of the actuating movements being limited by the width of the gap 33.

As shown by way of example in FIG. 3, the roller holder 27 and, as a result, the roller 21 attached to it can be laterally displaced relative to the frame holder 26, which is brought about by a corresponding actuation of the actuators 34 and the consequent force effect on the section 32. As soon as the desired position of the roller holder 27 relative to the frame holder 26 is found, that of the lamella elements 37 and 38 or the stamp 39 and the pressure plate 42 formed fixing device are actuated so that the position is permanently fixed and the actuators 34 do not have to be driven further.

4 shows the device 20 with the base plate 28 in a perspective view from the front. The sleeve body 29 is fastened to the base plate 28 by means of four fastening screws 47 (see FIG. 1, shown schematically). Between the sleeve body 29 of the frame holder 26 and the roller holder 27, on the forward side of which the half-shell-shaped quick-release fastener 24 is partially recognizable (see FIG. 1), the four actuators 34 designed in the manner of pressure hoses 34 are arranged, which are connected via feed lines 48 can be pressurized with compressed air. The recognizable lamella elements 37 and 38 can be relaxed by means of the pressure plate 42.

One recognizes the extremely compact design of the device 20, which due to its overall rotationally symmetrical design (apart from the base plate 28) has a smaller diameter than the roller 21 itself (see FIG. 1).

5 shows a second exemplary embodiment of an actuator 50 for a device 20 in cross section. The basic structure of the device 20 with frame holder 26, roller holder 27 and a fixing device for fixing the roller holder 27 relative to the roller holder 26 corresponds to the structure described with FIG. 1 and therefore need not be explained further. To form the actuator 50, a cylindrical membrane 51 is arranged in the gap 33, the upper and lower edges of which are connected to the inside diameter of the sleeve body 29 (not shown in FIG. 5). The membrane 51 is also connected in four strip-shaped areas 52 to the inside diameter of the sleeve body 29, for example glued, so that as a result, the sleeve body 29 and the membrane 51 form four pressure chambers 53, which are evenly distributed over the circumference of the gap 33. The pressure chambers 53 can each be supplied with compressed air via pressure inlet openings 54 are acted on, so that a resultant force acts on the section 32 of the roller holder 27 as a function of the respective pressure in the four pressure chambers 53.

6 shows an inking unit 56 with which printing ink can be transferred from a roller 57 to a roller 22a designed in the manner of a forme cylinder 22a. In order to transfer the printing ink, five adjustable rollers 21a; 21b; 21c; 21d; 21e provided. The ends of the adjustable rollers 21a to 21e are each mounted in devices 20, which is indicated in FIG. 6 by the corresponding actuators 34.

Four or five rollers 21a; 21b; 21c; 21d; 21e, for example a dampening roller and three or four inking rollers.

By pressurizing the corresponding actuators 34, the rollers 21a; 21c; 21e are placed on the roller 22a. After the rollers 21a; 21c; 21e, by applying pressure to the various actuators 34 on the rollers 21a to 21e, the contact pressure between the various rollers 57; 21a to 21e; 22a can be set.

One or more fastening devices 58 or interruptions 58 are provided on the roller 22a, which are designed in particular in the manner of a gap 58. The front or rear edge of a pressure plate can be fixed in the fastening device 58 in order to fasten the pressure plate to the roller 22a. The angle of rotation of the roller 22a is detected by a sensor, not shown, and passed on to the control. When the rollers 21a; 21c; 21e or when setting the contact pressure of these rollers 21a; 21c; 21e, the respective angle of rotation of the roller 22a is taken into account, in order thereby to prevent the rollers 21a; 21c; 21e when hiring or adjusting the contact pressure on the Break 58 is pending. The adjustment of the rollers 21a to 21e or their adjustment to the roller 22a can also take place with the printing unit rotating with the rotating roller 22a. The setting of the contact pressure and / or the adjustment of the first rollers 21a to 21e to the second roller 22a takes place at low speeds, in particular at 3,000 to 5,000 rpm.

The switching device 59 shown in FIG. 7 is suitable for controlling the total of 20 actuators on the adjustable rollers 21a to 21e on one side. The switching device 59 is only shown schematically and is briefly explained below.

A pressure medium, for example compressed air with a sufficiently high pressure level, can be removed from a pressure accumulator 61. Via two valves 62; 63, in particular pressure control valves 62; 63 the pressure medium flows into two separate pressure chambers 64; 66, in which there is a corresponding pressure level depending on the position of the pressure control valves 62 and 63. The pressure set in the pressure chambers 64 and 66 can be transmitted to the actuators 34 via pressure lines 67 assigned to each actuator 34.

The changeover of the changeover device 59 is clocked. The duration of a time cycle for setting an adjustable roller 21a to 21e of the inking unit 56 or dampening unit is 0.1 to 2 seconds, in particular 0.5 seconds.

Shut-off devices, for example shut-off valves, are now provided in the switching device 59 in FIG. 7, so that various of the pressure lines 67 connected to the pressure chambers 64 and 66 can optionally be shut off. If the contact pressure is now to be set on an adjustable roller 21, all pressure lines 67 which lead to actuators 34 which are not required for the setting are shut off. As a result, it follows that the Pressure control valves 62; 63 regulated air pressure are only transmitted to the actuators 34, which are involved in the setting of the roller 21 desired in each case. After the setting of this roller 21, the corresponding contact pressure is fixed by actuating the fixing device, so that the next adjustable roller 21 can then be set by switching over the switching device 59.

Instead of the switching device 59 with shut-off device, the following alternative is possible.

The pressure control valves 62; 63 set air pressures are simultaneously on the actuators 34; 50 of several adjusters. A setting is only made for the setting devices in which the fixing device is opened.

The roller 21 to be started; 21a; 21b; 21c; 21d; 21e the outer surface of the second roller 22; 22a in relation to the circumferential direction at a distance of less than 20 mm from the leading end of the interruption 58.

Setting the contact pressure means that the contact pressure can be changed when the roller is in the contact state (in contact) with another roller before it is switched on or in the adjusted state, ie the surface pressure of the roller can be changed in addition to the parked state.

LIST OF REFERENCE NUMBERS

01 to 19

20 device

21 roller

22 roller

23 axis

24 quick release

25 -

26 frame holder

27 roller holder

28 base plate (26)

29 sleeve body (26)

30 -

31 recess (26)

32 section (27)

33 gap

34 actuator, pressure hose

35 -

36 pressure chamber

37 slat element (27)

38 slat element (26)

39 stamps

40 stamp head

41 flange (40)

42 pressure plate

43 spring element, disc spring package

44 pressure connection

45 - Pressure chamber fastening screw supply line - actuator membrane fastening section pressure chamber pressure inlet opening - inking unit roller fastening device, interruption, gap switching device - pressure accumulator valve, pressure control valve valve, pressure control valve pressure chamber - pressure chamber pressure line

a roller b roller c roller d roller e roller a roller, forme cylinder

Claims

Expectations

1. Device for adjusting the contact pressure between an adjustably mounted first roller (21) and at least one second roller (22) and / or for turning the first roller (21) on or off the second roller (22) in a printing press at least one actuator (34; 50) which can be pressurized with pressure and which presses the first roller (21) with an adjustable force in the direction of the second roller (22), characterized in that the pressure of the pressure medium can be adjusted by means of a valve (62; 63) and that a switchover device (59) is provided with which the valve (62; 63) can optionally be connected to different actuators (34; 50).

2. Device according to claim 1, characterized in that two valves (62; 63) are provided, with which the pressure of two actuators (34; 50) on an adjustable roller (21) is adjustable, wherein by switching the switching device (59 ) the two valves (62; 63) can optionally be connected to the actuators (34; 50) of different adjustable rollers (21a; 21b; 21c; 21d; 21e).

3. Device according to claim 2, characterized in that the two valves (62; 63) generate two different contact pressures.

4. Apparatus according to claim 1 or 2, characterized in that the valve (62; 63) is designed as a flow control valve (62; 63).

5. The device according to claim 1, characterized in that several devices (20) are provided on an inking unit (56) or dampening unit, the setting of the contact pressure between two rollers (21; 22) of the inking unit (56) or dampening unit by switching the Switching device (59) to the actuators (34; 50) of a correspondingly assigned adjustable roller (21a; 21b; 21c; 21d; 21 e) and subsequent actuation of the valves (62; 63).

6. The device according to claim 1 or 3, characterized in that the changeover of the switching device (59) and the actuation of the valves (62; 63) in succession for setting all adjustable rollers (21a; 21b; 21c; 21d; 21e) of the inking unit ( 56) or dampening system can be carried out.

7. The device according to claim 1 or 6, characterized in that the changeover of the switching device (59) is carried out clocked.

8. The device according to claim 7, characterized in that the duration of a timing for setting an adjustable roller (21a, 21b, 21c, 21d, 21e) of the inking unit (56) or dampening unit 0.1 to 2 seconds, in particular 0.5 seconds , is.

9. The device according to claim 1, characterized in that a fixing device (37, 38, 39, 40, 42, 43) for fixing the first roller (21) is arranged relative to the second roller (22).

10. The device according to claim 1, characterized in that the first roller (21) is held in a roller holder (27) which in turn is adjustably mounted on a frame holder (26), wherein the roller holder (27) has a section (32) which engages with a recess (31) in the frame holder (26) such that at least one gap (33) is formed between the recess (31) and the section (32) in which the actuator (34; 50) is arranged, or vice versa, that the recess in the frame holder (26) and the portion (32) engaging therein is provided on the roller holder (27).

11. The device according to claim 10, characterized in that the recess (31) and the section (32) engaging therein on the roller holder (27) or frame holder (26) are each rotationally symmetrical and a circumferential gap (33) is formed between them.

12. The device according to claim 11, characterized in that the recess (31) and the portion (32) engaging therein on the roller holder (27) or frame holder (26) each extend substantially coaxially along the longitudinal axis of the first roller (21) ,

13. The apparatus according to claim 12, characterized in that the gap (33) between roller holder (27) and frame holder (26) with coaxial alignment of the roller holder (27) and frame holder (26) has a circumferential width of approximately 1 mm to 10 mm, in particular of approximately 2 mm.

14. Device according to one of claims 1 to 13, characterized in that the largest outer diameter of the roller holder (27) or frame holder (26) is at least slightly smaller than the outer diameter of the first roller (21).

15. Device according to one of claims 1 to 14, characterized in that at least three, in particular four, actuators (34; 50) are arranged, which press the first roller (21) in different directions.

16. Device according to one of claims 1 to 15, characterized in that a prestressed gas, in particular compressed air, is used as the pressure medium.

17. Device according to one of claims 1 to 16, characterized in that the actuator (34) is designed in the manner of a pressure hose (34), the wall of which forms a pressure chamber (36) in the gap (33) between the roller holder (27) and frame holder (26) is arranged.

18. Device according to one of claims 1 to 17, characterized in that four pressure hoses (34) with the same distance from each other over the circumference of the gap (33) between the roller holder (27) and frame holder (26) are arranged.

19. Device according to one of claims 1 to 18, characterized in that the actuator (50) together of a pressure-resistant membrane (51) which rests in the gap (33) on the component wall of the roller holder (27), and the component wall of the frame holder (26) is formed in that the component wall of the frame holder (26) and the membrane (51) are pressure-tightly connected to one another, for example glued, to form at least one pressure chamber (53) in fastening sections (52), wherein in the component wall of the frame holder ( 26) at least one pressure inlet opening (54) is provided, or vice versa that the pressure chamber (53) is formed by the membrane (51) and the component wall of the frame holder (26).

20. Device for adjusting the contact pressure between an adjustably mounted first roller (21) and at least one second roller (22) and / or for turning the first roller (21) on or off the second roller (22) in a printing press at least one actuator (34; 50) which can be pressurized with pressure and which presses the first roller (21) with an adjustable force in the direction of the second roller (22), characterized in that the actuation of the actuators (34; 50) takes place in a clocked manner.

21. The apparatus according to claim 20, characterized in that the duration of a timing for setting an adjustable roller (21a, 21b, 21c, 21d, 21e) of the inking unit (56) or dampening unit 0.1 to 2 seconds, in particular 0.5 seconds , is

22. A method for adjusting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) and / or for turning the first roller (21; 21a; 21b; 21c; 21 d; 21e) to the second roller (22; 22a) in a printing press, with at least one actuator (34; 50) with which the first roller (21; 21a; 21b; 21c; 21d; 21e) is pressed with an adjustable force in the direction of the second roller (22; 22a), the second roller (22; 22a) having an interruption (58) on its outer surface, characterized in that the adjustment of the first roller (21; 21a; 21b; 21c; 21 d; 21 e) outside the interruption (58).

23. The method according to claim 22, characterized in that a plurality of rollers (21; 21a; 21b; 21c; 21d; 21e) are placed on the second roller (22; 22a) and the adjustment of these rollers (21; 21a; 21b; 21c) ; 21d; 21e) takes place outside the interruption (58).

24. The method according to claim 22, characterized in that the second roller (22a) is designed in the manner of a forme cylinder (22a) with a fastening device (58) for fastening the printing plate to the forme cylinder (22a), and the setting of the contact pressure and / or the adjustment of the first roller (21a; 21b; 21c; 21 d; 21 e) to the forme cylinder (22a) only in angular positions in which the first roller (21a; 21b; 21c; 21d; 21e) is not on the fastening device (58) can come to the plant.

25. The method according to claim 22 or 24, characterized in that the setting of the contact pressure takes place with rotating rollers (21; 21a; 21b; 21c; 21d; 21e; 22; 22a).

26. The method according to claim 25, characterized in that the setting of Contact pressure and / or the adjustment of the first roller (21; 21a; 21b; 21c; 21 d; 21 e) to the second roller (22; 22a) at low speeds, in particular at 3,000 to 5,000 rpm.

27. The method according to claim 22, characterized in that the roller to be set (21; 21a; 21b; 21c; 21d; 21e) the circumferential surface of the second roller (22; 22a) with respect to the circumferential direction at a distance of less than 20 mm from the touches the leading end of the interruption (58).

28. A method for adjusting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) and / or for turning the first roller (21; 21a; 21b; 21c; 21d; 21e) to the second roller (22; 22a) in a printing press, with at least one actuator (34; 50) with which the first roller (21; 21a; 21b; 21c; 21d; 21e ) is pressed with an adjustable force in the direction of the second roller (22; 22a), characterized in that the setting of the contact pressure and / or the adjustment of the first roller (21; 21a; 21b; 21c; 21d; 21e) to the second Roller (22; 22a) at low speeds, in particular at 3,000 to 5,000 U / h

29. Method for adjusting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) and / or for turning the first roller (21; 21a; 21b; 21c; 21d; 21e) to the second roller (22; 22a) in a printing press, with at least one actuator (34; 50) with which the first roller (21; 21a; 21b; 21c; 21d; 21e ) is pressed with an adjustable force in the direction of the second roller (22; 22a), the second roller (22; 22a) having an interruption (58) on its outer surface, the first roller (21; 21a; 21b; 21c; 21d; 21e) is fixed relative to the second roller (22; 22a) by means of a fixing device (37, 38, 39, 40, 42, 43), characterized in that at least one actuator (34; 50) each of at least two Rollers (21; 21a; 21b; 21c; 21d; 21e) are activated, and that the fixing device (37, 38, 39, 40, 42, 43) at least one of the rollers (21; 21a; 21b; 21c; 21d; 21 e) is actuated and the fixing device (37, 38, 39, 40, 42, 43) at least one of the rollers (21; 21a; 21b; 21c; 21d; 21e) is not actuated.

30. The method according to claim 29, characterized in that actuators (34; 50) are activated first and then the fixing device (37, 38, 39, 40, 42, 43) is actuated.

31. The method according to claim 30, characterized in that first the fixing device (37, 38, 39, 40, 42, 43) is actuated and then the actuators (34; 50) are activated.

32. The method according to claim 30 or 31, characterized in that the fixing device (37, 38, 39, 40, 42, 43) is released.

33. The method according to claim 30 or 31, characterized in that the fixing device (37, 38, 39, 40, 42, 43) is closed.

34. The method according to claim 29, characterized in that at least two actuators (34; 50) per roller (21; 21a; 21b; 21c; 21d; 21e) are activated.

35. The method according to claim 30, characterized in that actuators (34; 50) act in the direction of one roller (21; 21a; 21b; 21c; 21 d; 21 e) and the other actuator (34; 50) acts in the direction of another Roller (21; 21a; 21b; 21c; 21d; 21e) acts.

36. The method according to claim 34, characterized in that different actuating forces are generated by means of the actuators (34; 50).

37. The method according to claim 29, characterized in that at least one actuator (34; 50) of all the rollers (21; 21a; 21b; 21c; 21d; 21e) which are in contact with a forme cylinder (22a).

38. Method for adjusting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) and / or for turning the first roller (21; 21a; 21b; 21c; 21d; 21e) to the second roller (22; 22a) in a printing press, with at least one actuator (34; 50) with which the first roller (21; 21a; 21b; 21c; 21d; 21e ) is pressed with an adjustable force in the direction of the second roller (22; 22a), the second roller (22a) having an interruption (58) on its outer surface, the first roller (21; 21a; 21b; 21c; 21d; 21e) is fixed by means of a fixing device (37, 38, 39, 40, 42, 43), characterized in that an actuator (34; 50) of the fixed roller is actuated at the same time.

39. Device according to claim 38, characterized in that the actuator (34; 50) is actuated simultaneously.

40. A method using a device according to claim 1 or 20 or a method according to claim 22, 28, 29 or 38, characterized in that all the rollers (21a; 21c; 21e) which can be set on the forme cylinder (22a) are set.

41. Method for adjusting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) and / or for turning the first roller (21; 21a; 21b; 21c; 21d; 21e) to the second roller (22; 22a) in a printing press, with at least one actuator (34; 50) with which the first roller (21; 21a; 21b; 21c; 21d; 21e ) is pressed with an adjustable force in the direction of the second roller (22; 22a), the second roller (22; 22a) having an interruption (58) on its lateral surface, characterized in that at least two on the forme cylinder (22a) adjustable rollers (21a; 21c; 21e) are adjusted with a time delay.

42. The method according to claim 40, characterized in that at least two rollers (21a; 21c; 21e) which can be set on the forme cylinder (22a) are set in a time-delayed manner.

43. The method according to claim 40 or 41, characterized in that at least three rollers (21a; 21c; 21e) which can be set on the forme cylinder (22a) are set in a time-delayed manner.

44. The method according to claim 40 or 41, characterized in that at least four rollers (21a; 21c; 21e) which can be set on the forme cylinder (22a) are set in a time-delayed manner.

45. The method according to claim 40 or 41, characterized in that at least five rollers (21a; 21c; 21e) which can be set on the forme cylinder (22a) are set in a time-delayed manner.

46. Method for setting the contact pressure between an adjustably mounted first roller (21; 21a; 21b; 21c; 21d; 21e) and at least one second roller (22; 22a) in a printing press, with at least one actuator (34; 50), with which the first roller (21; 21a; 21b; 21c; 21d; 21e) is pressed with an adjustable force in the direction of the second roller (22; 22a), characterized in that the setting of the contact pressure with rotating rollers (21; 21a ; 21b; 21c; 21d; 21e; 22; 22a) takes place.

47. The method according to claim 26, characterized in that all the rollers (21a; 21c; 21e) that can be set on a forme cylinder (22; 22a) have their own actuator (34; 50).