EP1871603B1 - Inking systems of a printing press and method for operating an inking system - Google Patents

Inking systems of a printing press and method for operating an inking system Download PDF

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Publication number
EP1871603B1
EP1871603B1 EP06708288A EP06708288A EP1871603B1 EP 1871603 B1 EP1871603 B1 EP 1871603B1 EP 06708288 A EP06708288 A EP 06708288A EP 06708288 A EP06708288 A EP 06708288A EP 1871603 B1 EP1871603 B1 EP 1871603B1
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EP
European Patent Office
Prior art keywords
drive motor
inking unit
speed
unit according
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06708288A
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German (de)
French (fr)
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EP1871603A2 (en
Inventor
Georg Schneider
Michael Heinz Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to EP08165619A priority Critical patent/EP2002979A1/en
Publication of EP1871603A2 publication Critical patent/EP1871603A2/en
Application granted granted Critical
Publication of EP1871603B1 publication Critical patent/EP1871603B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/004Driving means for ink rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70Driving devices associated with particular installations or situations
    • B41P2213/73Driving devices for multicolour presses
    • B41P2213/734Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft

Definitions

  • the invention relates to inking units of a printing press and to a method for operating an inking unit according to the preamble of claims 1 and 23, respectively.
  • an inking unit of a printing machine wherein two distribution cylinders of this inking unit are mechanically coupled and rotationally driven jointly by a common drive motor and by a different drive motor.
  • the DE 44 30 693 A1 discloses a drive of an inking unit, wherein the distribution cylinders are coupled to each other either rotatably driven by a common, angular position-controlled drive motor or in each case a separate drive motor.
  • z. B web tension elements or distribution cylinders, even speed or torque-controlled electric motors are used.
  • the DE 100 44 860 A1 discloses an inking unit with four Reibzylindern, wherein three of the friction cylinder rotatably positively driven via a positive coupling with a rotary drive, and a friction cylinder is rotationally driven only by friction.
  • a drive of a friction cylinder wherein a rotational movement is generated by a first, advantageously speed-controlled electric motor and the traversing movement by a differential speed with a second, advantageously angle-controlled motor.
  • the DE 102 19 903 A1 discloses a drive of a distribution cylinder, wherein by a special arrangement of coil windings both a rotary and translatory movement can be generated. By unequal loading of two axially juxtaposed windings uneven moments are generated and causes a movement in the axial direction. The axial and angular position is reported back to the controller via a position sensor.
  • the invention has for its object to provide a respect. Effort and / or ink transfer improved inking a printing press and a method for its operation.
  • the form cylinder near the distribution cylinder has no drive connection to a drive motor but is merely rotationally driven via the frictional contact with cooperating rollers. He therefore does not enforce a mechanical drive connection with a drive motor forced rotational movement, while z.
  • the form cylinder distant friction cylinder in addition to the friction gear of the rollers rotatory drive energy obtained by mechanical coupling with a drive motor.
  • the inking unit or the roller train of the inking unit can be formed with its own side frame as a module.
  • the drive of the inking unit can also designed as a transmission module with releasably connected drive motor and be already connected outside the printing machine with the folding frame releasably.
  • a printing machine, z. B. web-fed rotary printing press, in particular a multi-color web-fed rotary printing press, has a printing unit 01, in which a web of material 02, short web 02 on both sides simply or in particular successively multiple, z. B. here four times, or several tracks at the same time one or more times are printable.
  • the printing unit 01 has a plurality of (in the present case four) vertically stacked double printing units 03 for the two-sided printing in Mattadel rubber operation.
  • the double printing units 03 - shown here in the form of bridge or n-printing units - are each formed by two printing units 04, which each have one as a transfer cylinder 06 and a form cylinder 07 formed cylinder 06; 07, z. B.
  • a (double) pressure point 05 is formed in Anstelllage.
  • the above components are only on the top double printing unit 03 of Fig. 1 denotes, wherein the stacked (double) printing units 03; 04, however, can be made identical, in particular in the embodiment of the features relevant to the invention.
  • the double printing units 03 can - as well as the below-described advantageous feature of the linear arrangement - as well contrary to the illustration in Fig. 1 as an upwardly opening U unit or as in Fig. 2 represented as Hums printing unit 03, that is, wherein the axes of rotation of the printing cylinder 06; 07 in pressure-on position in a common plane, be executed.
  • Shaping and transfer cylinder 07; 06 are z. B. with a bale width of at least two, z. B. four or even six juxtaposed standing printed pages in newspaper format, especially in broadsheet format formed.
  • At least the forme cylinder 07 can in one embodiment z. B. have a circumference which essentially corresponds to two consecutively arranged printed pages in a newspaper format. In another embodiment, the scope may correspond to a single such print page.
  • the forme cylinder 07 is preferably rotationally driven by a angular position controlled drive motor 15.
  • a angular position controlled drive motor 15 As exemplified in Fig. 2 , right side, indicated, both cylinders 06; 07 of the printing unit each have a drive motor 15 as a single drive, without mechanical drive connection to other cylinders.
  • the cylinder pair of cylinder 07 and co-acting effetszyiinder 06 by a common drive motor in pairs, and is formed without mechanical drive connection to other cylinders or cylinder pairs.
  • the pairwise drive can on Forming or transfer cylinder 06; Attack 07 and on the other cylinder 07; 06 done via a coupling.
  • the inking 08 has a plurality of rollers 11; 12; 13; 14; 16 on.
  • the inking unit 08 according to Fig. 2 comprises (at least) two rollers 11, in particular applicator rollers 11, which apply the ink to the printing forme of the forme cylinder 07 and which transfer the ink via an oscillating roller 12.1, in particular a friction cylinder 12.1 (eg with a hard surface) Roller 13, in particular inking or transfer roller 13 (eg with a soft surface), a second changeable roller 12.2, in particular friction cylinder 12.2, another inking or transfer roller 13 (eg with a soft surface), a roller 14 , In particular, film roller 14 and a roller 16, in particular ductor or fountain roller 16 from a color box 17 (Farbzu Switzerland- or -dosiersystem) receives.
  • a friction cylinder 12.1 eg with a hard surface
  • Roller 13 in particular inking or transfer roller 13 (eg with a soft surface)
  • second changeable roller 12.2 in particular friction cylinder 12.2, another
  • Dip and film roller 16; 14 can advantageously also be replaced by another ink feed or metering system (eg pump system in the pumping inking unit, or lifter system in the lifting inking unit).
  • another ink feed or metering system eg pump system in the pumping inking unit, or lifter system in the lifting inking unit.
  • the soft surfaces of the application and / or transfer rollers 11; 13 are yielding in the radial direction, z. B. with a rubber layer, formed in what Fig. 2 is expressed by the concentric circles.
  • rollers 11; 12; 13; 14 of the inking unit 08 set against each other, so dive depending on the contact pressure and / or travel the hard surfaces of the distribution cylinder 12.1; 12.2 in the soft surfaces of each cooperating soft rolls 11; 13 more or less far.
  • the circumferential ratios of successively rolling, cooperating rollers 11 change; 12; 13; 14th
  • one of a plurality of co-acting rollers has a positive rotary drive by specifying a rotational speed (eg via a drive motor or a corresponding mechanical drive connection to another driven component)
  • a rotational speed eg via a drive motor or a corresponding mechanical drive connection to another driven component
  • an adjacent one only rotates by friction from the first-mentioned roller driven soft roller depending on Eindschreibiefe with different speed.
  • this soft roller would additionally be driven by its own drive motor or additionally by friction in a second nip from another speed-determined roller, this may in the first case result in a difference between the motor-specified speed and the speed caused by friction, and in the second case, there is a difference between the two speeds caused by friction. Slippage occurs at the nip points and / or the drive motor (s) are unnecessarily heavily loaded.
  • the form cylinder near the distribution cylinder 12.1 is rotational only by friction with adjacent rollers 11; 13 driven and has its rotary drive neither an additional mechanical drive connection for driving the printing cylinder 06; 07 or another rotary forcibly driven inking roller nor its own drive motor.
  • the first distribution cylinder 12.1 is driven rotationally predominantly via the application rollers 11 driven by friction with the forme cylinder 07 in this example (optionally also one or three) and has independent of the impressions in the intermediate sections Nippstellen essentially the peripheral speed of the forme cylinder 07.
  • the form cylinder remote distribution cylinder 12.2 has, as in Fig. 2 indicated, a rotationally driving drive motor 18, but in addition to the through the rollers 12.2; 13; 12.1 formed friction gear has no mechanical coupling to the first distribution cylinder 12.1.
  • the drive motor 18 is mechanically independent of the forme cylinder 07 driving drive motor 15. In more than two Reibzylindern 12.1; 12.2, z. B. three, the two form cylinder distant rotationally forcibly driven, or it can only be the middle or the form cylinder remote distribution cylinder 12.2 rotationally driven forcibly.
  • the cylinder near the cylinder 12.1 has its own, only its rotational movement in a traversing motion forming traversing 19.
  • This can be advantageously designed as a cam gear, wherein z. B. a frame-fixed axial stop cooperates with a roller-fixed curved circumferential groove or a roller-fixed axial stop in a frame-fixed circumferential groove of a cam.
  • the traversing gear 19 of the first Reibzylinders 12.1 is mechanically coupled via a gear 21 with the traversing mechanism 19 of the second Reibzylinders 12.2 in an advantageous manner.
  • the two coupled traversing gear 19 constitute a common traversing drive or traversing gear 22 and are forcibly driven by a drive motor for their traversing movement.
  • a drive motor for their traversing movement.
  • the forced drive of the traversing gear 22 through the second drive cylinder 12.2 rotationally driving drive motor 18 (FIG. Fig. 3 ).
  • Fig. 3 is an advantageous embodiment for the drive of the distribution cylinder 12.1; 12.2, wherein only the second distribution cylinder 12.2 is rotationally positively driven, but both distribution cylinders 12.1, 12.2 are axially positively driven via the common traversing drive 22.
  • the drive motor 18 drives the drive motor 18 via a coupling 23 via a shaft 24 to a drive pinion 26, which in turn interacts with a non-rotatably connected to the second distribution cylinder 12.2 spur gear 27 together.
  • the connection can z. B. via a spur gear 27 supporting shaft portion 28 on a pin 29 of the second Reibzylinders 12.2 done.
  • a corresponding axle section 28 of the first friction cylinder 12. 1 has no such spur gear 27 or no drive connection to the drive motor 18.
  • the drive connection between the drive pinion 26 and the spur gear 27 of the second friction cylinder 12.2 are preferably straight teeth and formed with a sufficient coverage for each position of traversing movement in the teeth engagement.
  • the two distribution cylinders 12.1; 12.2 are in a side frame 31 in bearings 32, z. B.
  • the traversing drive 22 is also by the drive motor 18, z. B. via a worm drive 33, 34, driven.
  • a worm drive 33, 34 driven.
  • a driver 37 is arranged eccentrically to the axis of rotation, which in turn z. B.
  • a crank mechanism for example via a rotatably mounted on the driver 37 lever 38 and a hinge 39, in the axial direction of the distribution cylinder 12.1; 12.2 pressure and zugsteif with the pins 29 of the distribution cylinder 12.1; 12.2 is connected.
  • the friction gear 19 of the form cylinder remote cylinder 12.2 is only indicated by dashed lines, since it is hidden in this view by the spur gear 27.
  • a rotation of the shaft 36 causes a rotation of the driver 37, which in turn via the crank drive an axial stroke of the distribution cylinder 12.1; 12.2 causes.
  • the output to the traversing drive 22 can also take place at another point of the rotary drive train between the drive motor 18 and the distribution cylinder 12.2 or even on the other side of the machine located on the other end face of the Reibzylinders 12.2 pin 29 to a corresponding traversing gear 22. Also, if necessary, one of a worm gear 33, 34 different gear for decoupling the axial drive can be provided.
  • the traversing drive 22 and the traversing gear 22 is designed as a whole with a separate housing 41, which may be additionally encapsulated.
  • the traversing gear 22 may be lubricated in the enclosed space either with oil, but preferably with a grease.
  • the traversing gear 22 is supported in the illustrated embodiment by a holder 32 connected to the frame 42.
  • the drive motor 18 is in this case releasably connected to the housing 41 of the traversing gear 22.
  • Fig. 5 shows an advantageous embodiment of a torsionally rigid connection between the axle portion 28 and the respective pin 29. This is with respect to a rotation about a frictional engagement, which by clamping a tapered portion of the pin 29 made by this comprehensive, slotted shaft portion 28 becomes.
  • the position of a clamping screw 43 is dimensioned such that it - at least partially immersed in a circumferential groove of the pin 29 - viewed transversely to the axis of rotation of the pin 29. It thus represents an interlocking securing of the connection with respect to an axial direction.
  • a further advantageous development is explained, wherein the distribution cylinder 12.1; 12.2 including rotary and axial drive in the manner of a total pre-assembled and / or movable module on its own, of a the printing cylinder 06; 07 supporting side frames 44 structurally different side frames 31 are arranged.
  • a second, the distribution cylinder 12.1; 12.2 on its other end side supporting frame side is not shown here.
  • These the distribution cylinders 12.1; 12.2 and their drive supporting side frames 31 are then depending on the size and geometric arrangement of the printing cylinder 06; 07 positionable on the side frame 44.
  • FIG. 6 a) and 6 b) show a relative position of the side frames 31 and 44 to each other when using a larger (a) and a smaller (b) forme cylinder 07.
  • This can print units 01 with printing cylinders 06; 07 different circumferential formats can be operated in a simple manner by the same inking unit 08.
  • the prefabricated preferably as a module transmission unit can be completely pre-assembled as a subunit for example designed as a module inking 08 and be pre-assembled in an advantageous embodiment before use in the printing unit 01 on the side frame 31 of the inking unit module.
  • the modularity also allows the installation / replacement / replacement of the module designed as a transmission when the inking unit module is already inserted into the machine.
  • the rollers 11 (13) roll off each other largely without slippage, at least in the area of the inking unit close to the die cylinder.
  • the drive motor 18, which drives the second distribution cylinder 12.2 rotationally can be embodied as an electric motor that is controllable with respect to its power and / or its torque and / or also with respect to its speed.
  • the drive motor 18 is also operated in speed-controlled / pressure-controlled manner, then in the region of the inking unit 08 which is distant from the printing cylinder, it may still be too o. G. Problems arise with regard to different effective roll circumferences.
  • the drive motor 18 is, however, advantageously designed such that it at least during printing operation in terms of pressure. Its performance and / or its torque is controlled or regulated. In contrast to a speed or angular position control is here as a reference variable (setpoint) not a speed to be maintained or predetermined angular position, but given a torque.
  • this specification does not correspond to a merely short-term and constantly changing specification within a speed or angular position control loop in the ms range to correct an angular position specification or speed specification, but to a fixed specification, which over a longer period - ie over a period of several rotations - is to be adhered to, without a speed or angular position control loop is superimposed.
  • a maximum speed to protect the motor 18
  • Free speed here means that the drive motor either without any speed regulation or at best with a monitoring on an upper and / or lower speed limit is operable.
  • the drive motor 18 is regulated or operated with respect to the torque, since the torque input is independent of the - determined by the friction gear substantially - speed.
  • This controlled with respect to its performance and / or its torque / regulated operation can in principle be carried out by means of a drive motor 18 designed as a synchronous motor 18 or as an asynchronous motor 18.
  • drive motor 18 When executed as a synchronous motor 18 drive motor 18 is maintained in the execution of compliance with a predetermined torque to maintain a current moment constant or fixed in the case of the control, while the asynchronous motor 18 running drive motor 18 in addition mathematically phase relationships between reactive current and active components Find.
  • the drive motor 18 is embodied as an asynchronous motor 18, which has only one frequency (eg in pressure-down of the inking unit 08) in an associated drive control 46. or an electrical drive power or torque (in pressure on the inking unit 08) is specified.
  • the inking unit 08 can be brought over a second frequency cylinder 12.2 to a suitable for the pressure-On-sites peripheral speed over a predetermined frequency at which the peripheral speeds of forme cylinder 07 and applicator rollers 11 only by less than 10%, in particular less than 5%, from each other (this limit is also advantageous as a condition for the pressure-on-places of the embodiments mentioned below).
  • a suitable frequency or performance or torque specification is empirically and / or computationally determined in advance and held either in the drive control itself, a machine control or a control center computer, the default value is preferably changeable by the operator (also applies advantageously for below specified values).
  • the applicator rollers 11 are employed in rolling contact with the forme cylinder 07 and all inking rollers to each other, the rollers 11; 12.1; 13; 12.2; 13; 14 to a part of the forme cylinder 07 via the now produced friction gear between the rollers 11; 12.1; 13; 12.2; 13; 14 rotationally driven so that the drive motor 18 only has to bring in the increasing power in the friction gears with increasing distance from the forme cylinder 07 power loss.
  • the drive motor 18 can be operated with a small (drive) torque or a small drive power, which only helps to keep the rear portion of the inking unit 08 at the predetermined by the frictional contact peripheral speed.
  • This drive power can be left constant in a first variant for all production speeds (or rotational speeds of the forme cylinder 07) and either correspond to that specification for starting in pressure-Ab or represent its own constant value for the production.
  • different specifications with regard to the frequency and / or drive power can be predetermined and stored for different production speeds (and possibly also for starting in pressure-off). Depending on the production speed (production speed) can then vary the default for the drive motor 18.
  • the drive in addition to the drive control 46 and the induction motor 18 of the first embodiment, a speed feedback, so that the drive motor 18 in the phase of the inking unit operation in pressure-Ab with the speed of the associated plate cylinder 07 and the printing cylinder 06; 07 is essentially synchronized.
  • the actual speed detecting sensor 47 z.
  • a rotary encoder 47 on a rotatably connected to the distribution cylinder 12.2 rotating component, eg. B. a rotor of the drive motor 18, the shaft 24, the shaft 28 or the pin 29 may be arranged.
  • a rotary encoder 47 on a rotatably connected to the distribution cylinder 12.2 rotating component, eg. B. a rotor of the drive motor 18, the shaft 24, the shaft 28 or the pin 29 may be arranged.
  • a rotary encoder 47 having a co-rotating initiator and fixed sensor 47 is shown by way of example on the coupling 23, the signal of which is fed to the drive control 46 for further processing via a signal connection shown in dashed lines. Due to the speed feedback, the comparison with a rotational speed M representing the engine speed and a corresponding adjustment of the power or frequency specification, a slip at the moment of pressure on-position can be avoided or at least minimized to a few percent. In the print-on operation, the drive motor 18 is then preferably no longer strictly with respect to. The described speed feedback but essentially operated according to the above-described frequency or power specification.
  • a third embodiment has a synchronous motor 18 instead of the asynchronous motor 18 of the second embodiment.
  • a speed feedback and a related synchronization and control in the pressure-off phase is carried out according to the second embodiment, for. B. again in the drive control 46th
  • a drive motor 18, in particular a synchronous motor 18, is provided, which is optionally speed-controlled in a first mode (for inking unit 08 in print-Ab) and in a second mode with respect to a torque (for inking unit 08 in print-on). is controllable.
  • Drive control 46 and drive motor 18 preferably have an internal control loop for speed control, which, similarly to the second embodiment, comprises a return from an external rotary encoder 47 or an internal motor sensor system.
  • synchronous motors 18 are used, a plurality of these synchronous motors 18 of a printing unit 01 can be assigned a common frequency converter or converter.
  • a respect to versatility advantageous, but more complex development of the fourth embodiment is the formation of the drive motor 18 as an optional position and torque controllable servo motor 18, ie a three-phase synchronous motor with a Device that allows to determine the current rotational position or the angle of rotation with respect to an initial position of the rotor.
  • the feedback of the rotational position can via a rotary encoder, z.
  • each drive motor 18 is assigned its own frequency converter or converter.
  • the drive control 46 is advantageously in signal connection with a so-called virtual master shaft in which an electronically generated master axis position ⁇ circulates.
  • the circumferential Leitachsposition ⁇ is the synchronization, with respect to.
  • a signal connection to the virtual master axis can thus provide the drive controller 46 with the information about the engine speed.
  • the drive of the friction cylinder 12.2 is thus preferably moved by the drive motor 18 in such a way that the drive motor 18 is driven or regulated in a controlled manner at running but in the pressure-down position (08) (ie parked applicator rollers 11) running machine, as soon as a pressure on the inking unit 08 (ie the applicator rollers 11) is done, the speed control or control is deliberately abandoned. D. h., It is no longer held at a speed, but the drive motor 18 is in the further course of a torque, for. B. via a predetermined electrical power, and / or with respect to a on the controller of a drive motor 18, in particular asynchronous motor 18, operated adjustable torque.
  • the torque to be set or the power to be set for example, is selected to be smaller than a limit torque which would lead to a first rotation (under slip) of the driven friction cylinder 12.2 when the cooperating rollers 13 are set but are fixed with respect to rotation.
  • the load characteristic of a drive motor 18 embodied as an asynchronous motor 18 counteracts the behavior intended for the purpose here in such a way that, as the load increases, the frequency is reduced while the drive torque increases.
  • asynchronous motor 18 counteracts the behavior intended for the purpose here in such a way that, as the load increases, the frequency is reduced while the drive torque increases.
  • much drive energy and thus circumferential speed are already lost from the forme cylinder 07, so that the loading of the drive motor 18 increases, thus providing the increased torque at a reduced frequency.
  • little torque is transmitted by the drive motor 18 - it runs virtually empty - when sufficient energy is transmitted through the friction gear to the distribution cylinder 12.2.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Soil Working Implements (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Manufacture Of Switches (AREA)

Abstract

Inking system comprises a roller drive having a friction cylinder close to the printing cylinder (07) and a friction cylinder arranged away from the cylinder. The friction cylinder arranged close to the printing cylinder is driven in a rotary manner via friction with neighboring rollers. Preferred Features: The friction cylinder arranged away from the printing cylinder is additionally driven by a drive motor. The drive motor and an assigned drive control unit are structured so that the drive motor is driven in a controlled manner during the printing process.

Description

Die Erfindung betrifft Farbwerke einer Druckmaschine sowie ein Verfahren zum Betreiben eines Farbwerkes gemäß dem Oberbegriff des Anspruchs 1 bzw. 23.The invention relates to inking units of a printing press and to a method for operating an inking unit according to the preamble of claims 1 and 23, respectively.

In der WO 03/039872 A1 ist ein Farbwerk einer Druckmaschine offenbart, wobei zwei Reibzylinder dieses Farbwerks mechanisch gekoppelt und durch einen gemeinsamen Antriebsmotor rotatorisch und durch einen davon verschiedenen Antriebsmotor gemeinsam changierend angetrieben sind.In the WO 03/039872 A1 an inking unit of a printing machine is disclosed, wherein two distribution cylinders of this inking unit are mechanically coupled and rotationally driven jointly by a common drive motor and by a different drive motor.

Die DE 44 30 693 A1 offenbart einen Antrieb eines Farbwerks, wobei die Reibzylinder entweder miteinander gekoppelt durch einen gemeinsamen, winkellagegeregelten Antriebsmotor oder aber jeweils einen eigenen Antriebsmotor rotatorisch angetrieben sind. In einer Variante können bei Antriebsfällen mit nicht zu hohen Anforderungen an den Gleichlauf, z. B. Bahnzugelemente oder Reibzylinder, auch drehzahl- oder momentengeregelte Elektromotoren zur Anwendung kommen.The DE 44 30 693 A1 discloses a drive of an inking unit, wherein the distribution cylinders are coupled to each other either rotatably driven by a common, angular position-controlled drive motor or in each case a separate drive motor. In one variant, in drive cases with not too high demands on the synchronization, z. B. web tension elements or distribution cylinders, even speed or torque-controlled electric motors are used.

Die DE 100 44 860 A1 offenbart ein Farbwerk mit vier Reibzylindern, wobei drei der Reibzylinder rotativ über eine formschlüssige Kopplung mit einem Rotationsantrieb zwangsangetrieben, und ein Reibzylinder lediglich über Friktion rotativ angetrieben ist.The DE 100 44 860 A1 discloses an inking unit with four Reibzylindern, wherein three of the friction cylinder rotatably positively driven via a positive coupling with a rotary drive, and a friction cylinder is rotationally driven only by friction.

Durch die DE 101 57 243 A1 ist ein Antrieb eines Reibzylinders offenbart, wobei eine Rotativbewegung durch einen ersten, vorteilhaft drehzahlgeregelten Elektromotor und die Changierbewegung durch eine Differenzgeschwindigkeit mit einem zweiten, vorteilhaft winkelgeregelten Motor erzeugt wird.By the DE 101 57 243 A1 a drive of a friction cylinder is disclosed, wherein a rotational movement is generated by a first, advantageously speed-controlled electric motor and the traversing movement by a differential speed with a second, advantageously angle-controlled motor.

Die DE 102 19 903 A1 offenbart einen Antrieb eines Reibzylinders, wobei durch eine spezielle Anordnung von Spulenwicklungen sowohl eine rotative als auch translatorische Bewegung erzeugbar ist. Durch ungleiche Beaufschlagung zweier axial nebeneinander angeordneter Wicklungen werden ungleiche Momente erzeugt und eine Bewegung in axialer Richtung bewirkt. Die Axial- und Winkelposition wird dabei der Steuerung über einen Positionssensor rückgemeldet.The DE 102 19 903 A1 discloses a drive of a distribution cylinder, wherein by a special arrangement of coil windings both a rotary and translatory movement can be generated. By unequal loading of two axially juxtaposed windings uneven moments are generated and causes a movement in the axial direction. The axial and angular position is reported back to the controller via a position sensor.

Der Erfindung liegt die Aufgabe zugrunde, ein bzgl. Aufwand und/oder Farbübertrag verbessertes Farbwerke einer Druckmaschine und ein Verfahren zu dessen Betrieb zu schaffen.The invention has for its object to provide a respect. Effort and / or ink transfer improved inking a printing press and a method for its operation.

Die Aufgabe wird erfingdungsgemäß durch die Merkmale des Anspruchs 1 bzw. 23 gelöst.The object is achieved according to the invention by the features of claim 1 and 23, respectively.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass mit dem Farbwerk einerseits ein verbesserter Farbfluss dadurch geschaffen wird, dass im formzylindernahen Bereich des Walzenzuges ein nahezu ungestörtes Abrollen der aneinander angestellten Walzen erreichbar ist. Auf der anderen Seite ist ein verminderter Verschleiß und/oder ein verringerter Energieverbrauch und/oder Steuerungsaufwand erzielbar.The achievable with the present invention consist in particular in that the inking on the one hand an improved color flow is created by the fact that in the near-cylinder area of the compactor a virtually undisturbed rolling of the juxtaposed rollers can be achieved. On the other hand, reduced wear and / or reduced energy consumption and / or control effort can be achieved.

Von Vorteil ist es, dass der formzylindernahe Reibzylinder keine Antriebsverbindung zu einem Antriebsmotor aufweist sondern lediglich über den Reibkontakt mit zusammen wirkenden Walzen rotatorisch getrieben ist. Er übt daher keine über eine mechanische Antriebsverbindung mit einem Antriebsmotor erzwungene Drehbewegung aus, während z. B. der formzylinderferne Reibzylinder zusätzlich zum Reibgetriebe der Walzen rotatorische Antriebsenergie durch mechanische Kopplung mit einem Antriebsmotor erhält.It is advantageous that the form cylinder near the distribution cylinder has no drive connection to a drive motor but is merely rotationally driven via the frictional contact with cooperating rollers. He therefore does not enforce a mechanical drive connection with a drive motor forced rotational movement, while z. As the form cylinder distant friction cylinder in addition to the friction gear of the rollers rotatory drive energy obtained by mechanical coupling with a drive motor.

In vorteilhafter Weiterbildung lässt sich das Farbwerk bzw. der Walzenzug des Farbwerks mit eigenem Seitengestell als Modul ausbilden. Der Antrieb des Farbwerks kann ebenfalls als Getriebemodul mit lösbar verbundenen Antriebsmotor ausgeführt und bereits außerhalb der Druckmaschine mit dem Falbwerksgestell lösbar verbunden sein.In an advantageous embodiment, the inking unit or the roller train of the inking unit can be formed with its own side frame as a module. The drive of the inking unit can also designed as a transmission module with releasably connected drive motor and be already connected outside the printing machine with the folding frame releasably.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Es zeigen:

Fig. 1
eine schematische Darstellung einer Druckeinheit;
Fig. 2
eine vergrößerte Darstellung eines Doppeldruckwerkes in ebener Bauweise;
Fig. 3
ein Ausführungsbeispiel für einen Farbwerksantrieb;
Fig. 4
ein Teilschnitt des Farbwerksantriebes nach Fig. 3;
Fig. 5
ein Schnitt durch die Zapfenklemmung aus Fig. 3;
Fig. 6
eine erste Position a) und eine zweite Position b) des Farbwerksantriebes.
Show it:
Fig. 1
a schematic representation of a printing unit;
Fig. 2
an enlarged view of a double printing in a flat design;
Fig. 3
an embodiment of an inking unit drive;
Fig. 4
a partial section of the inking unit drive Fig. 3 ;
Fig. 5
a section through the pin clamping off Fig. 3 ;
Fig. 6
a first position a) and a second position b) of the inking unit drive.

Eine Druckmaschine, z. B. Rollenrotationsdruckmaschine, insbesondere eine Mehrfarbenrollenrotationsdruckmaschine, weist eine Druckeinheit 01 auf, in welcher eine Materialbahn 02, kurz Bahn 02 beidseitig einfach oder insbesondere nacheinander mehrfach, z. B. hier vierfach, oder aber mehrere Bahnen gleichzeitig ein- oder mehrfach bedruckbar sind. Die Druckeinheit 01 weist mehrere (im vorliegenden Fall vier) vertikal übereinander angeordnete Doppeldruckwerke 03 für den beidseitigen Druck im Gummigegen-Gummi-Betrieb auf. Die Doppeldruckwerke 03 - hier in Form von Brücken- oder n-Druckwerken dargestellt - werden jeweils durch zwei Druckwerke 04 gebildet, welche je einen als Übertragungszylinder 06 und einen als Formzylinder 07 ausgebildeten Zylinder 06; 07, z. B. Druckwerkszylinder 06; 07, sowie jeweils ein Farbwerk 08 und im Fall des Nassoffsetdruckes zusätzlich ein Feuchtwerk 09 aufweisen. Jeweils zwischen den beiden Übertragungszylindern 06 wird in Anstelllage eine (Doppel-)Druckstelle 05 gebildet. Die genannten Bauteile sind lediglich am obersten Doppeldruckwerk 03 der Fig. 1 bezeichnet, wobei die übereinander angeordneten (Doppel-)Druckwerke 03; 04 jedoch im wesentlichen - insbesondere in der Ausgestaltung der für die Erfindung relevanten Merkmale - identisch ausgeführt sein können. Die Doppeldruckwerke 03 können - ohne das unten beschriebene vorteilhafte Merkmal der linearen Anordnung - genauso gut entgegen der Darstellung in Fig. 1 als sich nach oben öffnende U - Einheit oder wie in Fig. 2 dargestellt als Ebenes Druckwerk 03, d. h. wobei die Rotationsachsen der Druckwerkszylinder 06; 07 in Druck-An-Stellung in einer gemeinsamen Ebene liegen, ausgeführt sein.A printing machine, z. B. web-fed rotary printing press, in particular a multi-color web-fed rotary printing press, has a printing unit 01, in which a web of material 02, short web 02 on both sides simply or in particular successively multiple, z. B. here four times, or several tracks at the same time one or more times are printable. The printing unit 01 has a plurality of (in the present case four) vertically stacked double printing units 03 for the two-sided printing in Gummigegen rubber operation. The double printing units 03 - shown here in the form of bridge or n-printing units - are each formed by two printing units 04, which each have one as a transfer cylinder 06 and a form cylinder 07 formed cylinder 06; 07, z. B. printing cylinder 06; 07, and in each case have an inking unit 08 and in the case of wet offset printing additionally a dampening unit 09. In each case between the two transfer cylinders 06 a (double) pressure point 05 is formed in Anstelllage. The above components are only on the top double printing unit 03 of Fig. 1 denotes, wherein the stacked (double) printing units 03; 04, however, can be made identical, in particular in the embodiment of the features relevant to the invention. The double printing units 03 can - as well as the below-described advantageous feature of the linear arrangement - as well contrary to the illustration in Fig. 1 as an upwardly opening U unit or as in Fig. 2 represented as Ebenes printing unit 03, that is, wherein the axes of rotation of the printing cylinder 06; 07 in pressure-on position in a common plane, be executed.

Form- und Übertragungszylinder 07; 06 sind z. B. mit einer Ballenbreite von mindestens zwei, z. B. vier oder gar sechs nebeneinander angeordneten stehenden Druckseiten im Zeitungsformat, insbesondere im Broadsheetformat, ausgebildet. Zumindest die Formzylinder 07 können in einer Ausführung z. B. einen Umfang aufweisen, welcher im wesentlichen zwei hintereinander angeordneten Druckseiten in einem Zeitungsformat entspricht. In anderer Ausführung kann der Umfang einer einzigen derartigen Druckseite entsprechen.Shaping and transfer cylinder 07; 06 are z. B. with a bale width of at least two, z. B. four or even six juxtaposed standing printed pages in newspaper format, especially in broadsheet format formed. At least the forme cylinder 07 can in one embodiment z. B. have a circumference which essentially corresponds to two consecutively arranged printed pages in a newspaper format. In another embodiment, the scope may correspond to a single such print page.

Der Formzylinder 07 ist vorzugsweise rotatorisch durch einen winkellagegeregelten Antriebsmotor 15 angetrieben. Wie exemplarisch in Fig. 2, rechte Seite, angedeutet, können beide Zylinder 06; 07 des Druckwerkes jeweils einen Antriebsmotor 15 als Einzelantrieb, ohne mechanische Antriebsverbindung zu anderen Zylindern, aufweisen. In einer in Fig. 2, linke Seite, angedeuteten Ausführung kann das Zylinderpaar aus Formzylinder 07 und zusammen wirkendem Übertragungszyiinder 06 auch durch einen gemeinsamen Antriebsmotor paarweise, und ohne mechanische Antriebsverbindung zu anderen Zylindern bzw. Zylinderpaaren ausgebildet ist. Der paarweise Antrieb kann am Form- oder Übertragungszylinder 06; 07 angreifen und auf den jeweils anderen Zylinder 07; 06 über eine Kopplung erfolgen.The forme cylinder 07 is preferably rotationally driven by a angular position controlled drive motor 15. As exemplified in Fig. 2 , right side, indicated, both cylinders 06; 07 of the printing unit each have a drive motor 15 as a single drive, without mechanical drive connection to other cylinders. In an in Fig. 2 , Left side, indicated embodiment, the cylinder pair of cylinder 07 and co-acting Übertragungszyiinder 06 by a common drive motor in pairs, and is formed without mechanical drive connection to other cylinders or cylinder pairs. The pairwise drive can on Forming or transfer cylinder 06; Attack 07 and on the other cylinder 07; 06 done via a coupling.

Das Farbwerk 08, z. B. als einzügiges Walzenfarbwerk 08 oder auch als "langes Farbwerk" bezeichnet, weist eine Mehrzahl von Walzen 11; 12; 13; 14; 16 auf. Das Farbwerk 08 gemäß Fig. 2 umfasst (mindestens) zwei, die Farbe auf die Druckform des Formzylinders 07 auftragende Walzen 11, insbesondere Auftragwalzen 11, welche die Farbe über einen druckform- bzw. formzylindernahen changierbaren Walze 12.1, insbesondere Reibzylinder 12.1 (z. B. mit harter Oberfläche), eine Walze 13, insbesondere Farb- oder Übertragungswalze 13 (z. B. mit weicher Oberfläche), einen zweiten, formzylinderfernen changierbaren Walze 12.2 insbesondere Reibzylinder 12.2, eine weitere Farb- oder Übertragungswalze 13 (z. B. mit weicher Oberfläche), eine Walze 14, insbesondere Filmwalze 14 und eine Walze 16, insbesondere Duktor- oder Tauchwalze 16 aus einem Farbkasten 17 (Farbzuführ- bzw. -dosiersystem) erhält. Tauch-und Filmwalze 16; 14 (charakterisierend für ein Filmfarbwerk) können vorteilhaft auch durch ein anderes Farbzuführ- bzw. -dosiersystem (z. B. Pumpsystem im Pumpfarbwerk, oder Hebersystem im Heberfarbwerk) ersetzt sein. In dem o.g. einzügigen Farbwerk 08 teilt sich ein Farbtransportweg vom Farbzuführsystem in Richtung zum Formzylinder 07 hin betrachtet frühestens (wenn überhaupt) hinter dem formzylindernähsten Reibzylinder 12.1, d. h. es existieren keine parallelen Farbauftragswege, welche jeweils einen Reibzylinder aufweisen.The inking 08, z. B. referred to as Einwirkiges roller inking unit 08 or as "long inking unit", has a plurality of rollers 11; 12; 13; 14; 16 on. The inking unit 08 according to Fig. 2 comprises (at least) two rollers 11, in particular applicator rollers 11, which apply the ink to the printing forme of the forme cylinder 07 and which transfer the ink via an oscillating roller 12.1, in particular a friction cylinder 12.1 (eg with a hard surface) Roller 13, in particular inking or transfer roller 13 (eg with a soft surface), a second changeable roller 12.2, in particular friction cylinder 12.2, another inking or transfer roller 13 (eg with a soft surface), a roller 14 , In particular, film roller 14 and a roller 16, in particular ductor or fountain roller 16 from a color box 17 (Farbzuführ- or -dosiersystem) receives. Dip and film roller 16; 14 (characterizing a film inking unit) can advantageously also be replaced by another ink feed or metering system (eg pump system in the pumping inking unit, or lifter system in the lifting inking unit). In the above single-inking unit 08, a Farbtransportweg from Farbzuführsystem in the direction of the forme cylinder 07 towards at the earliest (if at all) behind the formzylindernähsten distribution cylinder 12.1, ie there are no parallel inking paths, each having a distribution cylinder.

Die weichen Oberflächen der Auftrag- und/oder Übertragungswalzen 11; 13 (kurz: weiche Walzen 11; 13) sind in radialer Richtung nachgiebig, z. B. mit einer Gummischicht, ausgebildet, was in Fig. 2 durch die konzentrischen Kreise ausgedrückt ist.The soft surfaces of the application and / or transfer rollers 11; 13 (in short: soft rollers 11, 13) are yielding in the radial direction, z. B. with a rubber layer, formed in what Fig. 2 is expressed by the concentric circles.

Werden nun die Walzen 11; 12; 13; 14 des Farbwerks 08 aneinander angestellt, so tauchen je nach Anstelldruck und/oder Stellweg die harten Oberflächen der Reibzylinder 12.1; 12.2 in die weichen Oberflächen der jeweils zusammen wirkenden weichen Walzen 11; 13 mehr oder weniger weit ein. Hierdurch ändern sich je nach Eindrücktiefe die Umfangsverhältnisse aufeinander abrollender, zusammen wirkender Walzen 11; 12; 13; 14.Now, the rollers 11; 12; 13; 14 of the inking unit 08 set against each other, so dive depending on the contact pressure and / or travel the hard surfaces of the distribution cylinder 12.1; 12.2 in the soft surfaces of each cooperating soft rolls 11; 13 more or less far. As a result, depending on the indentation depth, the circumferential ratios of successively rolling, cooperating rollers 11 change; 12; 13; 14th

Erfolgte nun beispielsweise für eine von mehreren zusammen wirkenden Walzen ein rotatorischer Zwangsantrieb durch Vorgabe einer Drehzahl (z. B. über einen Antriebsmotor oder eine entsprechende mechanische Antriebsverbindung zu einem anderen angetriebenen Bauteil), so rotiert eine benachbarte, lediglich über Friktion von der erstgenannten Walze her getriebene weiche Walze je nach Eindrücktiefe mit unterschiedlicher Drehzahl. Für den Fall, dass diese weiche Walze jedoch zusätzlich durch einen eigenen Antriebsmotor oder aber zusätzlich über Friktion in einer zweiten Nippstelle von einer anderen drehzahlbestimmten Walze her angetrieben wäre, kann dies im ersten Fall zu einer Differenz zwischen motorisch vorgegebener Drehzahl und durch Friktion verursachter Drehzahl, und im zweiten Fall zu einer Differenz zwischen den beiden durch Friktion verursachten Drehzahlen kommen. Es kommt an den Nippstellen zu Schlupf und/oder der bzw. die Antriebsmotoren werden unnötig stark belastet.If, for example, one of a plurality of co-acting rollers has a positive rotary drive by specifying a rotational speed (eg via a drive motor or a corresponding mechanical drive connection to another driven component), an adjacent one only rotates by friction from the first-mentioned roller driven soft roller depending on Eindrückiefe with different speed. However, in the event that this soft roller would additionally be driven by its own drive motor or additionally by friction in a second nip from another speed-determined roller, this may in the first case result in a difference between the motor-specified speed and the speed caused by friction, and in the second case, there is a difference between the two speeds caused by friction. Slippage occurs at the nip points and / or the drive motor (s) are unnecessarily heavily loaded.

Im formzylindernahen Bereich des Farbwerks 08, insbesondere im Bereich des Farbauftrages durch die Walzen 11 auf die Druckform, wird durch die nachfolgend beschriebene Lösung ein schlupffreies Abrollen ("true rolling") und Einfärben erreicht:In the region of the inking unit 08 close to the form cylinder, in particular in the region of the ink application by the rollers 11 to the printing plate, a slip-free rolling ("true rolling") and coloring is achieved by the solution described below:

Der formzylindernahe Reibzylinder 12.1 ist rotatorisch lediglich über Friktion mit benachbarten Walzen 11; 13 angetrieben und weist zu dessen rotatorischem Antrieb weder eine zusätzliche mechanische Antriebsverbindung zum Antrieb der Druckwerkszylinder 06; 07 oder einer anderen rotatorisch zwangsgetriebenen Farbwerkswalze noch einen eigenen Antriebsmotor auf. Auf diese Weise wird der erste Reibzylinder 12.1 überwiegend über die in diesem Beispiel beiden (ggf. auch eine oder drei) durch Friktion mit dem Formzylinder 07 getriebenen Auftragwalzen 11 rotatorisch getrieben und weist unabhängig von den Eindrückungen in den dazwischenliegenden Nippstellen im wesentlichen die Umfangsgeschwindigkeit des Formzylinders 07 auf. Der formzylinderferne Reibzylinder 12.2 weist, wie in Fig. 2 angedeutet, einen diesen rotatorisch treibenden Antriebsmotor 18 auf, der jedoch neben dem durch die Walzen 12.2; 13; 12.1 gebildeten Reibgetriebe keine mechanische Kopplung zum ersten Reibzylinder 12.1 aufweist. Der Antriebsmotor 18 ist mechanisch unabhängig vom den Formzylinder 07 antreibenden Antriebsmotor 15. Bei mehr als zwei Reibzylindern 12.1; 12.2 , z. B. dreien, können die beiden formzylinderfernen rotatorisch zwangsgetrieben, oder es kann lediglich der mittlere oder der formzylinderfernste Reibzylinder 12.2 rotatorisch zwangsgetrieben sein.The form cylinder near the distribution cylinder 12.1 is rotational only by friction with adjacent rollers 11; 13 driven and has its rotary drive neither an additional mechanical drive connection for driving the printing cylinder 06; 07 or another rotary forcibly driven inking roller nor its own drive motor. In this way, the first distribution cylinder 12.1 is driven rotationally predominantly via the application rollers 11 driven by friction with the forme cylinder 07 in this example (optionally also one or three) and has independent of the impressions in the intermediate sections Nippstellen essentially the peripheral speed of the forme cylinder 07. The form cylinder remote distribution cylinder 12.2 has, as in Fig. 2 indicated, a rotationally driving drive motor 18, but in addition to the through the rollers 12.2; 13; 12.1 formed friction gear has no mechanical coupling to the first distribution cylinder 12.1. The drive motor 18 is mechanically independent of the forme cylinder 07 driving drive motor 15. In more than two Reibzylindern 12.1; 12.2, z. B. three, the two form cylinder distant rotationally forcibly driven, or it can only be the middle or the form cylinder remote distribution cylinder 12.2 rotationally driven forcibly.

Vorzugsweise weisen beide Reibzylinder 12.1; 12.2 ein durch in Fig. 2 durch jeweilige Doppelpfeile symbolisierte Changier- bzw. Reibgetriebe 19 auf.Preferably, both distribution cylinders 12.1; 12.2 a through in Fig. 2 by respective double arrows symbolized traversing or friction gear 19.

In einer mechanisch wenig aufwändigen Ausführung weist der formzylindernahe Reibzylinder 12.1 ein eigenes, lediglich seine Rotationsbewegung in eine Changierbewegung umformendes Changiergetriebe 19 auf. Dies kann vorteilhaft als ein Kurvengetriebe ausgebildet sein, wobei z. B. ein gestellfester Axialanschlag mit einer walzenfesten kurvenförmig umlaufenden Nut zusammenwirkt oder ein walzenfester Axialanschlag in einer gestellfesten umlaufenden Nut einer Kurvenscheibe. Grundsätzlich kann dieses die Rotation in einen changierenden Axialhub umformende Getriebe 19 ein anderes geeignetes Getriebe 19, z. B. durch ein einen Excenter aufweisendes Schnecken- oder Kurbelgetriebe, ausgeführt sein.In a mechanically less complex embodiment, the cylinder near the cylinder 12.1 has its own, only its rotational movement in a traversing motion forming traversing 19. This can be advantageously designed as a cam gear, wherein z. B. a frame-fixed axial stop cooperates with a roller-fixed curved circumferential groove or a roller-fixed axial stop in a frame-fixed circumferential groove of a cam. Basically, this rotation in an iridescent Axialhub transforming gear 19 another suitable gear 19, z. B. by an eccentric exhibiting worm or crank gear, be executed.

Wie in Fig. 2 durch eine die Doppelpfeile verbindende strichlierte Linie symbolisiert, ist das Changiergetriebe 19 des ersten Reibzylinders 12.1 in vorteilhafter Weise über ein Getriebe 21 mit dem Changiergetriebe 19 des zweiten Reibzylinders 12.2 mechanisch gekoppelt. Vorteilhaft stellen die beiden gekoppelten Changiergetriebe 19 einen gemeinsamen Changierantrieb bzw. Changiergetriebe 22 dar und sind für deren Changierbewegung durch einen Antriebsmotor zwangsgetrieben. Vorzugsweise erfolgt der erzwungene Antrieb des Changiergetriebes 22 durch den den zweiten Reibzylinder 12.2 rotatorisch antreibenden Antriebsmotor 18 (Fig. 3).As in Fig. 2 symbolized by a dashed line connecting the double arrows, the traversing gear 19 of the first Reibzylinders 12.1 is mechanically coupled via a gear 21 with the traversing mechanism 19 of the second Reibzylinders 12.2 in an advantageous manner. Advantageously, the two coupled traversing gear 19 constitute a common traversing drive or traversing gear 22 and are forcibly driven by a drive motor for their traversing movement. Preferably takes place the forced drive of the traversing gear 22 through the second drive cylinder 12.2 rotationally driving drive motor 18 (FIG. Fig. 3 ).

In Fig. 3 ist eine vorteilhafte Ausführung für den Antrieb der Reibzylinder 12.1; 12.2 dargestellt, wobei lediglich der zweite Reibzylinder 12.2 rotatorisch zwangsangetrieben ist, jedoch beide Reibzylinder 12.1, 12.2 über den gemeinsamen Changierantrieb 22 axial zwangsangetrieben sind.In Fig. 3 is an advantageous embodiment for the drive of the distribution cylinder 12.1; 12.2, wherein only the second distribution cylinder 12.2 is rotationally positively driven, but both distribution cylinders 12.1, 12.2 are axially positively driven via the common traversing drive 22.

Hierzu treibt der Antriebsmotor 18 über eine Kupplung 23 über eine Welle 24 auf ein Antriebsritzel 26, welches seinerseits mit einem drehfest mit dem zweiten Reibzylinder 12.2 verbundenen Stirnrad 27 zusammen wirkt. Die Verbindung kann z. B. über einen das Stirnrad 27 tragenden Achsabschnitt 28 auf einen Zapfen 29 des zweiten Reibzylinders 12.2 erfolgen. Ein entsprechender Achsabschnitt 28 des ersten Reibzylinders 12.1 weist kein derartiges Stirnrad 27 bzw. keine Antriebsverbindung zum Antriebsmotor 18 auf. Die Antriebsverbindung zwischen Antriebsritzel 26 und Stirnrad 27 des zweiten Reibzylinders 12.2 sind vorzugsweise gerade verzahnt und mit einem für jede Position der Changierbewegung ausreichend große Überdeckung im Zähneeingriff ausgebildet. Die beiden Reibzylinder 12.1; 12.2 sind in einem Seitengestell 31 in Lagern 32, z. B. Radiallagern 32 gelagert, welche zusätzlich eine Axialbewegung ermöglichen. Eine rotatorische Antriebsverbindung zwischen dem Antriebsmotor 18 und dem ersten Reibzylinder 12.1 besteht hierbei nicht. Antriebsritzel 26 und das auf dem Achsabschnitt 28 angeordnete Stirnrad 27 stellen zusammen ein Getriebe, insbesondere Untersetzungsgetriebe, für den rotatorischen Antrieb dar, welches für sich eine abgeschlossene und/oder vormontierbare Baueinheit mit eigenem Gehäuse 30. Die Baueinheit ist ausgangsseitig an den Zapfen 29 koppelbar.For this purpose drives the drive motor 18 via a coupling 23 via a shaft 24 to a drive pinion 26, which in turn interacts with a non-rotatably connected to the second distribution cylinder 12.2 spur gear 27 together. The connection can z. B. via a spur gear 27 supporting shaft portion 28 on a pin 29 of the second Reibzylinders 12.2 done. A corresponding axle section 28 of the first friction cylinder 12. 1 has no such spur gear 27 or no drive connection to the drive motor 18. The drive connection between the drive pinion 26 and the spur gear 27 of the second friction cylinder 12.2 are preferably straight teeth and formed with a sufficient coverage for each position of traversing movement in the teeth engagement. The two distribution cylinders 12.1; 12.2 are in a side frame 31 in bearings 32, z. B. radial bearings 32, which also allow axial movement. A rotary drive connection between the drive motor 18 and the first distribution cylinder 12.1 does not exist here. Drive pinion 26 and arranged on the axle portion 28 spur gear 27 together represent a transmission, in particular reduction gear, for the rotary drive, which is a self-contained and / or preassembled unit with its own housing 30. The assembly is the output side to the pin 29 can be coupled.

Der Changierantrieb 22 wird durch den Antriebsmotor 18 ebenfalls, z. B. über einen Schneckentrieb 33, 34, angetrieben. Hierbei wird von einer aus der Welle 24 angeordneten Schnecke 33 bzw. einem als Schnecke 33 ausgebildeten Abschnitt der Welle 24 auf ein Schneckenrad 34 gerieben, welches drehfest mit einer senkrecht zur Rotationsachse der Reibzylinder 12.1; 12.2 verlaufenden Welle 36 verbunden ist. Jeweils stirnseitig der Welle 36 ist exzentrisch zu deren Rotationsachse ein Mitnehmer 37 angeordnet, welcher seinerseits z. B. über einen Kurbeltrieb, beispielsweise über einen auf dem Mitnehmer 37 rotierbar gelagerten Hebel 38 und ein Gelenk 39, in axialer Richtung der Reibzylinder 12.1; 12.2 druck- und zugsteif mit den Zapfen 29 der Reibzylinder 12.1; 12.2 verbunden ist. In Fig. 4 ist das Reibgetriebe 19 des formzylinderfernen Reibzylinders 12.2 lediglich strichliert angedeutet, da es in dieser Ansicht durch das Stirnrad 27 verdeckt wird. Ein rotieren der Welle 36 bewirkt ein Umlaufen der Mitnehmer 37, welches seinerseits über den Kurbeltrieb einen Axialhub der Reibzylinder 12.1; 12.2 bewirkt. Der Abtrieb auf den Changierantrieb 22 kann auch an anderer Stelle des rotatorischen Antriebsstranges zwischen Antriebsmotor 18 und Reibzylinder 12.2 oder gar auf der anderen Maschinenseite vom auf der anderen Stirnseite des Reibzylinders 12.2 befindlichen Zapfens 29 auf ein entsprechendes Changiergetriebe 22 erfolgen. Auch kann ggf. ein von einem Schneckentrieb 33, 34 verschiedenes Getriebe zur Auskopplung des Axialantriebes vorgesehen sein.The traversing drive 22 is also by the drive motor 18, z. B. via a worm drive 33, 34, driven. Here, by a arranged from the shaft 24 screw 33 and a trained as a screw section 33 of Shaft 24 rubbed on a worm wheel 34 which rotatably with a perpendicular to the axis of rotation of the distribution cylinder 12.1; 12.2 extending shaft 36 is connected. Each end face of the shaft 36, a driver 37 is arranged eccentrically to the axis of rotation, which in turn z. B. via a crank mechanism, for example via a rotatably mounted on the driver 37 lever 38 and a hinge 39, in the axial direction of the distribution cylinder 12.1; 12.2 pressure and zugsteif with the pins 29 of the distribution cylinder 12.1; 12.2 is connected. In Fig. 4 the friction gear 19 of the form cylinder remote cylinder 12.2 is only indicated by dashed lines, since it is hidden in this view by the spur gear 27. A rotation of the shaft 36 causes a rotation of the driver 37, which in turn via the crank drive an axial stroke of the distribution cylinder 12.1; 12.2 causes. The output to the traversing drive 22 can also take place at another point of the rotary drive train between the drive motor 18 and the distribution cylinder 12.2 or even on the other side of the machine located on the other end face of the Reibzylinders 12.2 pin 29 to a corresponding traversing gear 22. Also, if necessary, one of a worm gear 33, 34 different gear for decoupling the axial drive can be provided.

Wie in Fig. 3 dargestellt, ist der Changierantrieb 22 bzw. das Changiergetriebe 22 insgesamt als Baueinheit mit einem eigenen Gehäuse 41 ausgebildet, welches zusätzlich gekapselt ausgeführt sein kann. Das Changiergetriebe 22 kann im gekapselten Raum entweder mit Öl, vorzugsweise jedoch mit einem Fett geschmiert sein. Das Changiergetriebe 22 ist in der dargestellten Ausführung durch eine mit dem Gestell 32 verbundene Halterung 42 gestützt. Der Antriebsmotor 18 ist hierbei mit dem Gehäuse 41 des Changiergetriebes 22 lösbar verbunden.As in Fig. 3 shown, the traversing drive 22 and the traversing gear 22 is designed as a whole with a separate housing 41, which may be additionally encapsulated. The traversing gear 22 may be lubricated in the enclosed space either with oil, but preferably with a grease. The traversing gear 22 is supported in the illustrated embodiment by a holder 32 connected to the frame 42. The drive motor 18 is in this case releasably connected to the housing 41 of the traversing gear 22.

Fig. 5 zeigt eine vorteilhafte Ausführung einer drehsteifen Verbindung zwischen dem Achsabschnitt 28 und dem jeweiligen Zapfen 29. Hierbei handelt es sich bzgl. einer Rotation um einen Reibschluss, welcher durch Klemmen eines verjüngten Abschnittes des Zapfens 29 durch den diesen umfassenden, geschlitzten Achsabschnitt 28 hergestellt wird. Die Position einer Klemmschraube 43 ist derart bemessen, dass sie - quer zur Rotationsachse des Zapfens 29 betrachtet - zumindest teilweise in eine umlaufende Nut des Zapfens 29 eintaucht. Sie stellt bezüglich einer Axialrichtung somit eine formschlüssige Sicherung der Verbindung dar. Fig. 5 shows an advantageous embodiment of a torsionally rigid connection between the axle portion 28 and the respective pin 29. This is with respect to a rotation about a frictional engagement, which by clamping a tapered portion of the pin 29 made by this comprehensive, slotted shaft portion 28 becomes. The position of a clamping screw 43 is dimensioned such that it - at least partially immersed in a circumferential groove of the pin 29 - viewed transversely to the axis of rotation of the pin 29. It thus represents an interlocking securing of the connection with respect to an axial direction.

Anhand der Fig. 6 ist eine weitere vorteilhafte Weiterbildung erläutert, wobei die Reibzylinder 12.1; 12.2 samt rotatorischem und Axialantrieb in der Art eines insgesamt vormontier- und/oder bewegbaren Moduls an einem eigenen, von einem die Druckwerkszylinder 06; 07 tragenden Seitengestelle 44 baulich verschiedenen Seitengestelle 31 angeordnet sind. Eine zweite, die Reibzylinder 12.1; 12.2 auf ihrer anderen Stirnseite stützende Gestellseite ist hier nicht dargestellt. Diese die Reibzylinder 12.1; 12.2 und deren Antrieb tragenden Seitengestelle 31 sind dann je nach Größe und geometrischer Anordnung der Druckwerkszylinder 06; 07 am Seitengestell 44 positionierbar. Fig. 6 a) und 6 b) zeigen eine relative Lage der Seitengestelle 31 und 44 zueinander bei Einsatz eines größeren (a) und eines kleineren (b) Formzylinders 07. Ein durch Doppelpfeil in Fig. 6 gekennzeichneter Abstand zwischen dem Seitengestell 44 und dem Farbwerksantrieb, hier dem Changiergetriebe 22, ist dann je nach Position des in der Art eines Modul ausgeführten Farbwerks 08 verschieden. Damit können Druckeinheiten 01 mit Druckwerkszylindern 06; 07 unterschiedlicher Umfangsformate in einfacher Weise durch das selbe Farbwerk 08 bedient werden.Based on Fig. 6 a further advantageous development is explained, wherein the distribution cylinder 12.1; 12.2 including rotary and axial drive in the manner of a total pre-assembled and / or movable module on its own, of a the printing cylinder 06; 07 supporting side frames 44 structurally different side frames 31 are arranged. A second, the distribution cylinder 12.1; 12.2 on its other end side supporting frame side is not shown here. These the distribution cylinders 12.1; 12.2 and their drive supporting side frames 31 are then depending on the size and geometric arrangement of the printing cylinder 06; 07 positionable on the side frame 44. Fig. 6 a) and 6 b) show a relative position of the side frames 31 and 44 to each other when using a larger (a) and a smaller (b) forme cylinder 07. A double arrow in Fig. 6 characterized distance between the side frame 44 and the inking unit drive, here the traversing gear 22, is then different depending on the position of running in the manner of a module inking unit 08. This can print units 01 with printing cylinders 06; 07 different circumferential formats can be operated in a simple manner by the same inking unit 08.

Die vorzugsweise als Modul vorgefertigte Getriebeeinheit (aus Axialgetriebe und/oder Changiergetriebe 22) kann als Untereinheit für die beispielsweise als Modul ausgeführten Farbwerke 08 komplett vormontiert sein und in vorteilhafter Ausführung bereits vor dem Einsatz in die Druckeinheit 01 am Seitengestell 31 des Farbwerksmoduls vormontiert sein. Andererseits erlaubt die Modularität aber auch den Einbau/Ersatz/Austausch des als Modul ausgeführten Getriebes, wenn das Farbwerkmoduls bereits in die Maschine eingesetzt ist.The prefabricated preferably as a module transmission unit (from axial and / or traversing 22) can be completely pre-assembled as a subunit for example designed as a module inking 08 and be pre-assembled in an advantageous embodiment before use in the printing unit 01 on the side frame 31 of the inking unit module. On the other hand, the modularity also allows the installation / replacement / replacement of the module designed as a transmission when the inking unit module is already inserted into the machine.

Dadurch, dass der formzylindernahe Reibzylinder 12.1 keinen rotatorischen Zwangsantrieb aufweist, rollen die Walzen 11 (13) zumindest im formzylindernahen Farbwerksbereich weitgehend schlupffrei aufeinander ab.Due to the fact that the friction cylinder 12.1 near the cylinder surface does not have a positive drive in rotation, the rollers 11 (13) roll off each other largely without slippage, at least in the area of the inking unit close to the die cylinder.

Grundsätzlich kann der den zweiten Reibzylinder 12.2 rotatorisch antreibende Antriebsmotor 18 als ein bzgl. seiner Leistung und/oder seines Drehmomentes und/oder aber auch bzgl. seiner Drehzahl steuerbar oder regelbarer Elektromotor ausgeführt sein. Im letzteren Fall kann es dann - falls der Antriebsmotor 18 auch in Druck-An drehzahlgeregelt/-gesteuert betrieben wird - im formzylinderfernen Bereich des Farbwerks 08 noch zu o. g. Problemen hinsichtlich unterschiedlicher wirksamer Walzenumfänge kommen.In principle, the drive motor 18, which drives the second distribution cylinder 12.2 rotationally, can be embodied as an electric motor that is controllable with respect to its power and / or its torque and / or also with respect to its speed. In the latter case, if the drive motor 18 is also operated in speed-controlled / pressure-controlled manner, then in the region of the inking unit 08 which is distant from the printing cylinder, it may still be too o. G. Problems arise with regard to different effective roll circumferences.

Im Hinblick auf die oben geschilderte Problematik einer mit dem Reibgetriebe konkurrierenden Drehzahlvorgabe, ist der Antriebsmotor 18 jedoch vorteilhaft derart ausgebildet, dass er zumindest während des Druckbetriebes in Druck-An bzgl. seiner Leistung und/oder seines Drehmoments steuer- bzw. regelbar ist. Im Gegensatz zu einer Drehzahl- oder Winkellageregelung wird hier als Führungsgröße (Sollwert) nicht eine einzuhaltende Drehzahl oder vorgegebene Winkellage, sondern ein Drehmoment vorgegeben. Diese Vorgabe entspricht jedoch nicht einer lediglich kurzfristigen und ständig wechselnden Vorgabe innerhalb eines Drehzahl- oder Winkellageregelkreises im ms-Bereich um eine Winkellagevorgabe oder Drehzahlvorgabe auszuregeln, sondern um eine feste Vorgabe, welche über eine längere Periode hin - also über einen mehrere Walzenumdrehungen andauernden Zeitraum - eingehalten werden soll, ohne dass ein Drehzahl- oder Winkellageregelkreis überlagert ist. Z. B. ist während eines Druckbetriebes in Druck-An-Stellung bis auf eine ggf. vorliegende Überwachung auf eine Maximaldrehzahl (zum Schutze des Motors 18) der Antriebsmotor 18 mit - zumindest in gewissen Grenzen -freier Drehzahl, d. h. ohne Drehzahlvorgabe, betrieben. "Freie Drehzahl" bedeutet hier, dass der Antriebsmotor entweder ohne jegliche Drehzahlvorschrift oder aber allenfalls mit einer Überwachung auf eine obere und/oder untere Drehzahlgrenze betreibbar ist.In view of the above-described problematic of competing with the friction gear speed specification, the drive motor 18 is, however, advantageously designed such that it at least during printing operation in terms of pressure. Its performance and / or its torque is controlled or regulated. In contrast to a speed or angular position control is here as a reference variable (setpoint) not a speed to be maintained or predetermined angular position, but given a torque. However, this specification does not correspond to a merely short-term and constantly changing specification within a speed or angular position control loop in the ms range to correct an angular position specification or speed specification, but to a fixed specification, which over a longer period - ie over a period of several rotations - is to be adhered to, without a speed or angular position control loop is superimposed. For example, during a printing operation in pressure-on position, except for an optionally present monitoring to a maximum speed (to protect the motor 18) of the drive motor 18 with - at least within certain limits - free speed, ie operated without speed specification. "Free speed" here means that the drive motor either without any speed regulation or at best with a monitoring on an upper and / or lower speed limit is operable.

Vorzugsweise wird der Antriebsmotor 18 bzgl. des Drehmomentes geregelt bzw. gesteuert betrieben, da die Drehmomentvorgabe unabhängig von der - durch das Reibgetriebe im wesentlichen bestimmten - Drehzahl ist.Preferably, the drive motor 18 is regulated or operated with respect to the torque, since the torque input is independent of the - determined by the friction gear substantially - speed.

Dieser bzgl. seiner Leistung und/oder seines Drehmoments gesteuerte/geregelte Betrieb kann grundsätzlich mittels eines als Synchronmotors 18 oder eines als Asynchronmotors 18 ausgeführten Antriebsmotors 18 erfolgen. Beim als Synchronmotor 18 ausgeführten Antriebsmotor 18 wird in der Ausführung zur Einhaltung eines vorgegebenen Drehmomentes auf eine Einhaltung einer Strommomentenkonstante hin geregelt bzw. diese im Fall der Steuerung fest vorgegeben, während beim als Asynchronmotor 18 ausgeführten Antriebsmotor 18 zusätzlich rechnerisch Phasenbeziehungen zwischen Blindstrom- und Wirkstromanteilen Berücksichtigung finden.This controlled with respect to its performance and / or its torque / regulated operation can in principle be carried out by means of a drive motor 18 designed as a synchronous motor 18 or as an asynchronous motor 18. When executed as a synchronous motor 18 drive motor 18 is maintained in the execution of compliance with a predetermined torque to maintain a current moment constant or fixed in the case of the control, while the asynchronous motor 18 running drive motor 18 in addition mathematically phase relationships between reactive current and active components Find.

Im Folgenden werden verschiedene Ausführungen dargelegt: In einer ersten, bzgl. des Aufwandes einfachsten Ausführungsform ist der Antriebsmotor 18 als Asynchronmotor 18 ausgebildet, dem in einer zugeordneten Antriebssteuerung 46 lediglich eine Frequenz (z. B. in Druck-Ab des Farbwerks 08) und/oder eine elektrische Antriebsleistung oder ein Drehmoment (in Druck-An des Farbwerks 08) vorgegeben wird. In Druck-Ab des Farbwerks 08, d. h. die Auftragwalzen 11 sind außer Rollkontakt mit dem Formzylinder 07, kann über eine vorgegebene Frequenz das Farbwerk 08 über den zweiten Reibzylinder 12.2 auf eine für das Druck-An-Stellen geeignete Umfangsgeschwindigkeit gebracht werden, bei welcher sich die Umfangsgeschwindigkeiten von Formzylinder 07 und Auftragwalzen 11 nur um weniger als 10%, insbesondere weniger als 5 %, voneinander unterscheiden (diese Grenze gilt vorteilhaft auch als Bedingung für das Druck-An-Stellen der nachfolgend genannten Ausführungsformen). Eine hierzu geeignete Frequenz- bzw. Leistungs- oder Drehmomentvorgabe ist im Vorfeld empirisch und/oder rechnerisch ermittelbar und entweder in der Antriebssteuerung selbst, einer Maschinensteuerung oder einem Leitstandsrechner vorgehalten, wobei der Vorgabewert vorzugsweise durch das Bedienpersonal änderbar ist (gilt vorteilhaft auch für unten genannte Vorgabewerte).In the following, various embodiments are explained: In a first embodiment, which is simplest in terms of expenditure, the drive motor 18 is embodied as an asynchronous motor 18, which has only one frequency (eg in pressure-down of the inking unit 08) in an associated drive control 46. or an electrical drive power or torque (in pressure on the inking unit 08) is specified. In print-Ab of the inking unit 08, ie the applicator rollers 11 are out of rolling contact with the forme cylinder 07, the inking unit 08 can be brought over a second frequency cylinder 12.2 to a suitable for the pressure-On-sites peripheral speed over a predetermined frequency at which the peripheral speeds of forme cylinder 07 and applicator rollers 11 only by less than 10%, in particular less than 5%, from each other (this limit is also advantageous as a condition for the pressure-on-places of the embodiments mentioned below). A suitable frequency or performance or torque specification is empirically and / or computationally determined in advance and held either in the drive control itself, a machine control or a control center computer, the default value is preferably changeable by the operator (also applies advantageously for below specified values).

In Druck-An, d. h. die Auftragwalzen 11 sind in Rollkontakt mit dem Formzylinder 07 und sämtliche Farbwerkswalzen aneinander angestellt, werden die Walzen 11; 12.1; 13; 12.2; 13; 14 zu einem Teil vom Formzylinder 07 über das nun hergestellte Reibgetriebe zwischen den Walzen 11; 12.1; 13; 12.2; 13; 14 rotatorisch getrieben, sodass der Antriebsmotor 18 nur die in den Reibgetrieben mit zunehmender Entfernung vom Formzylinder 07 zunehmende Verlustleistung einbringen muss. D. h., der Antriebsmotor 18 kann mit einem kleinen (Antriebs-) Drehmoment bzw. einer kleinen Antriebsleistung betrieben werden, welche lediglich dazu beiträgt, den hinteren Bereich des Farbwerks 08 auf der im wesentlichen durch den Reibkontakt vorgegebenen Umfangsgeschwindigkeit zu halten. Diese Antriebsleistung kann in einer ersten Variante für sämtliche Produktionsdrehzahlen (bzw. Drehzahlen des Formzylinders 07) konstant belassen sein und entweder derjenigen Vorgabe für das Anfahren in Druck-Ab entsprechen oder einen eigenen konstanten Wert für die Produktion darstellen. In einer zweiten Variante können für verschiedene Produktionsdrehzahlen (und zusätzlich ggf. für das Anfahren in Druck-Ab) verschiedenen Vorgaben bzgl. der Frequenz und/oder Antriebsleistung vorgegeben und hinterlegt sein. Je nach Produktionsdrehzahl (Produktionsgeschwindigkeit) kann dann die Vorgabe für den Antriebsmotor 18 variieren.In print-on, d. H. the applicator rollers 11 are employed in rolling contact with the forme cylinder 07 and all inking rollers to each other, the rollers 11; 12.1; 13; 12.2; 13; 14 to a part of the forme cylinder 07 via the now produced friction gear between the rollers 11; 12.1; 13; 12.2; 13; 14 rotationally driven so that the drive motor 18 only has to bring in the increasing power in the friction gears with increasing distance from the forme cylinder 07 power loss. D. h., The drive motor 18 can be operated with a small (drive) torque or a small drive power, which only helps to keep the rear portion of the inking unit 08 at the predetermined by the frictional contact peripheral speed. This drive power can be left constant in a first variant for all production speeds (or rotational speeds of the forme cylinder 07) and either correspond to that specification for starting in pressure-Ab or represent its own constant value for the production. In a second variant, different specifications with regard to the frequency and / or drive power can be predetermined and stored for different production speeds (and possibly also for starting in pressure-off). Depending on the production speed (production speed) can then vary the default for the drive motor 18.

In einer zweiten Ausführungsform weist der Antrieb zusätzlich zur Antriebssteuerung 46 und dem Asynchronmotor 18 der ersten Ausführungsform eine Drehzahlrückführung auf, so dass der Antriebsmotor 18 in der Phase des Farbwerkbetriebes in Druck-Ab mit der Drehzahl des zugeordneten Formzylinders 07 bzw. der Druckwerkszylinder 06; 07 im wesentlichen synchronisierbar ist. Hierzu kann eine die Istdrehzahl detektierende Sensorik 47, z. B. eine Drehgeber 47, an einem drehfest mit dem Reibzylinder 12.2 verbundenen rotierenden Bauteil, z. B. einem Rotor des Antriebsmotors 18, der Welle 24, der Welle 28 oder dem Zapfen 29, angeordnet sein. In Fig. 3 ist ein einen mitdrehenden Initiator und ortsfesten Sensor 47 aufweisender Drehgeber 47 beispielhaft an der Kupplung 23 dargestellt, dessen Signal über eine strichliert dargestellte Signalverbindung der Antriebssteuerung 46 zur weiteren Verarbeitung zugeleitet wird. Durch die Drehzahlrückführung, den Vergleich mit einer die Maschinendrehzahl repräsentierenden Drehzahl M und einer entsprechenden Anpassung der Leistungs- bzw. Frequenzvorgabe ist ein Schlupf im Moment des Druck-An-Stellens vermeidbar bzw. zumindest auf wenige Prozent minimierbar. Im Druck-An-Betrieb wird der Antriebsmotor 18 dann vorzugsweise nicht mehr streng bzgl. der beschriebenen Drehzahlrückführung sondern im wesentlichen nach der oben beschriebenen Frequenz- bzw. Leistungsvorgabe betrieben.In a second embodiment, the drive in addition to the drive control 46 and the induction motor 18 of the first embodiment, a speed feedback, so that the drive motor 18 in the phase of the inking unit operation in pressure-Ab with the speed of the associated plate cylinder 07 and the printing cylinder 06; 07 is essentially synchronized. For this purpose, the actual speed detecting sensor 47, z. As a rotary encoder 47, on a rotatably connected to the distribution cylinder 12.2 rotating component, eg. B. a rotor of the drive motor 18, the shaft 24, the shaft 28 or the pin 29 may be arranged. In Fig. 3 a rotary encoder 47 having a co-rotating initiator and fixed sensor 47 is shown by way of example on the coupling 23, the signal of which is fed to the drive control 46 for further processing via a signal connection shown in dashed lines. Due to the speed feedback, the comparison with a rotational speed M representing the engine speed and a corresponding adjustment of the power or frequency specification, a slip at the moment of pressure on-position can be avoided or at least minimized to a few percent. In the print-on operation, the drive motor 18 is then preferably no longer strictly with respect to. The described speed feedback but essentially operated according to the above-described frequency or power specification.

Eine dritte Ausführungsform weist anstelle des Asynchronmotors 18 der zweiten Ausführungsform einen Synchronmotor 18 auf. Eine Drehzahlrückführung und eine diesbezügliche Synchronisierung und Regelung in der Druck-Ab-Phase erfolgt entsprechend der zweiten Ausführungsform z. B. wieder in der Antriebssteuerung 46.A third embodiment has a synchronous motor 18 instead of the asynchronous motor 18 of the second embodiment. A speed feedback and a related synchronization and control in the pressure-off phase is carried out according to the second embodiment, for. B. again in the drive control 46th

In einer vierten Ausführungsform ist ein Antriebsmotor 18, insbesondere ein Synchronmotor 18, vorgesehen, welcher wahlweise in einem ersten Modus (für Farbwerk 08 in Druck-Ab) drehzahlgeregelt und in einem zweiten Modus bzgl. eines Drehmomentes (für Farbwerk 08 in Druck-An) regelbar ist. Antriebssteuerung 46 und Antriebsmotor 18 weisen zur Drehzahlregelung vorzugsweise wieder einen inneren Regelkreis auf, welcher ähnlich der zweiten Ausführungsform eine Rückführung von einem externen Drehgeber 47 oder aber eine motorinterne Sensorik umfasst. Bei Verwendung von Synchronmotoren 18 kann mehreren dieser Synchronmotoren 18 einer Druckeinheit 01 ein gemeinsamer Frequenzumrichter bzw. -wandler zugeordnet sein.In a fourth embodiment, a drive motor 18, in particular a synchronous motor 18, is provided, which is optionally speed-controlled in a first mode (for inking unit 08 in print-Ab) and in a second mode with respect to a torque (for inking unit 08 in print-on). is controllable. Drive control 46 and drive motor 18 preferably have an internal control loop for speed control, which, similarly to the second embodiment, comprises a return from an external rotary encoder 47 or an internal motor sensor system. When synchronous motors 18 are used, a plurality of these synchronous motors 18 of a printing unit 01 can be assigned a common frequency converter or converter.

Eine bzgl. Vielseitigkeit vorteilhafte, jedoch aufwändigere Weiterbildung der vierten Ausführung ist die Ausbildung des Antriebsmotors 18 als wahlweise lage- und momentenregelbarer Servomotor 18, d. h. einem Drehstrom-Synchronmotor mit einer Einrichtung, die es erlaubt, die aktuelle Drehposition bzw. den zurückgelegten Drehwinkel bezüglich einer Anfangsposition des Rotors zu bestimmen. Die Rückmeldung der Drehlage kann über einen Drehgeber, z. B. ein Potentiometer, ein Resolver, einen Inkrementalgeber oder einen Absolutwertgeber erfolgen. Bei dieser Ausführungsform ist jedem Antriebsmotor 18 ein eigener Frequenzumrichter bzw. -wandler zugeordnet.A respect to versatility advantageous, but more complex development of the fourth embodiment is the formation of the drive motor 18 as an optional position and torque controllable servo motor 18, ie a three-phase synchronous motor with a Device that allows to determine the current rotational position or the angle of rotation with respect to an initial position of the rotor. The feedback of the rotational position can via a rotary encoder, z. As a potentiometer, a resolver, an incremental encoder or an absolute encoder done. In this embodiment, each drive motor 18 is assigned its own frequency converter or converter.

Für den Fall eines in der Weise der zweiten, dritten oder insbesondere vierten Ausführungsform ausgeführten, zumindest drehzahlsynchronisierbaren, insbesondere drehzahlregelbaren Antriebsmotors 18, steht die Antriebssteuerung 46 vorteilhaft mit einer sog. virtuelle Leitachse in Signalverbindung, in welcher eine elektronisch erzeugte Leitachsposition Φ umläuft. Die umlaufende Leitachsposition Φ dient der Synchronisierung, bzgl. korrekter Winkellage und deren zeitlicher Änderung (Winkelgeschwindigkeit Φ̇) mechanisch unabhängiger Antriebsmotoren von Aggregaten, welche einer selben Bahn zugeordnet sind, insbesondere Antriebsmotoren von einzelnen Druckwerkszylindern oder Druckwerkszylindergruppen und/oder dem Antrieb eines Falzapparates. In der Betriebsweise, in welcher das Farbwerk 08 bzgl. der Drehzahl des Formzylinders 07 synchronisiert angetrieben sein soll, kann eine Signalverbindung zur virtuellen Leitachse somit der Antriebssteuerung 46 die Information zur Maschinendrehzahl bzw. -geschwindigkeit liefern.In the case of an at least speed-synchronizable, in particular speed-controllable drive motor 18 designed in the manner of the second, third or especially fourth embodiment, the drive control 46 is advantageously in signal connection with a so-called virtual master shaft in which an electronically generated master axis position Φ circulates. The circumferential Leitachsposition Φ is the synchronization, with respect to. Correct angular position and its temporal change (angular velocity Φ̇) mechanically independent drive motors of aggregates, which are assigned to the same path, in particular drive motors of individual printing cylinders or groups of printing groups and / or the drive of a folder. In the mode of operation in which the inking unit 08 is to be driven in synchronism with respect to the rotational speed of the forme cylinder 07, a signal connection to the virtual master axis can thus provide the drive controller 46 with the information about the engine speed.

Vorzugsweise wird beim Antrieb des Reibzylinders 12.2 über den Antriebsmotor 18 somit derart verfahren, dass bei laufendem, aber in Druck-Ab-Stellung befindlichem Farbwerk 08 (d. h. abgestellte Auftragswalzen 11) der Antriebsmotor 18 bzgl. einer Drehzahl gesteuert bzw. geregelt angetrieben wird und bei laufender Maschine, sobald ein Druck-An des Farbwerks 08 (d. h. der Auftragswalzen 11) erfolgt ist, bewusst die Drehzahlregelung bzw. -steuerung aufgegeben wird. D. h., es wird nicht mehr an einer Drehzahl festgehalten, sondern der Antriebsmotor 18 wird im weiteren Verlauf hinsichtlich eines Drehmomentes, z. B. über eine vorgegebene elektrische Leistung, und/oder hinsichtlich eines am Regler eines Antriebsmotors 18, insbesondere Asynchronmotors 18, einstellbaren Drehmomentes betrieben. Das einzustellende Drehmoment bzw. die einzustellende Leistung ist beispielsweise kleiner gewählt, als ein Grenzdrehmoment, welches zu einem ersten Drehen (unter Schlupf) des getriebenen Reibzylinders 12.2 bei angestellten, jedoch bzgl. der Rotation festgesetzten zusammenwirkenden Walzen 13 führen würde.The drive of the friction cylinder 12.2 is thus preferably moved by the drive motor 18 in such a way that the drive motor 18 is driven or regulated in a controlled manner at running but in the pressure-down position (08) (ie parked applicator rollers 11) running machine, as soon as a pressure on the inking unit 08 (ie the applicator rollers 11) is done, the speed control or control is deliberately abandoned. D. h., It is no longer held at a speed, but the drive motor 18 is in the further course of a torque, for. B. via a predetermined electrical power, and / or with respect to a on the controller of a drive motor 18, in particular asynchronous motor 18, operated adjustable torque. The torque to be set or the power to be set, for example, is selected to be smaller than a limit torque which would lead to a first rotation (under slip) of the driven friction cylinder 12.2 when the cooperating rollers 13 are set but are fixed with respect to rotation.

Die Belastungscharakteristik eines als Asynchronmotor 18 ausgebildeten Antriebsmotors 18 kommt dem für den hiesigen Zweck angestrebten Verhalten in der Weise entgegen, dass bei steigender Last eine Frequenzabsenkung bei gleichzeitig steigendem Antriebsmoment erfolgt. Geht im Reibgetriebe zwischen Formzylinder 07 und zweitem Reibzylinder 12.2 beispielsweise bereits viel vom Formzylinder 07 stammende Antriebsenergie und damit Umfangsgeschwindigkeit verloren, so dass die Belastung des Antriebsmotors 18 wächst, so wird das erhöhte Moment bei verringerter Frequenz bereitgestellt. Umgekehrt wird durch den Antriebsmotor 18 wenig Moment übertragen - er läuft quasi leer - wenn ausreichend Energie über das Reibgetriebe bis zum Reibzylinder 12.2 übertragen wird.The load characteristic of a drive motor 18 embodied as an asynchronous motor 18 counteracts the behavior intended for the purpose here in such a way that, as the load increases, the frequency is reduced while the drive torque increases. For example, in the friction gearbox between the forme cylinder 07 and the second friction cylinder 12.2, much drive energy and thus circumferential speed are already lost from the forme cylinder 07, so that the loading of the drive motor 18 increases, thus providing the increased torque at a reduced frequency. Conversely, little torque is transmitted by the drive motor 18 - it runs virtually empty - when sufficient energy is transmitted through the friction gear to the distribution cylinder 12.2.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Druckeinheitprinting unit
01.101.1
TeildruckeinheitPrinting unit
01.201.2
TeildruckeinheitPrinting unit
0202
Materialbahn, BahnMaterial web, train
0303
DoppeldruckwerkDouble printing
0404
Druckwerkprinting unit
0505
Doppeldruckstelle, DruckstelleDouble pressure point, pressure point
0606
Zylinder, Übertragungszylinder, DruckwerkszylinderCylinder, transfer cylinder, printing cylinder
0707
Zylinder, Formzylinder, DruckwerkszylinderCylinder, forme cylinder, printing cylinder
0808
Farbwerk, WalzenfarbwerkInking unit, roller inking unit
0909
Feuchtwerkdampening
1010
--
1111
Walze, AuftragswalzeRoller, applicator roll
12.112.1
Walze, Reibzylinder, formzylindernah, ersterRoller, distribution cylinder, close to the cylinder, first
12.212.2
Walze, Reibzylinder, formzylinderfern, zweiterRoller, distribution cylinder, remote from the cylinder, second
1313
Walze, Farbwalze, ÜbertragungswalzeRoller, ink roller, transfer roller
1414
Walze, FilmwalzeRoller, film roller
1515
--
1616
Walze, Duktorwalze, TauchwalzeRoller, ductor roller, dipping roller
1717
Farbkastenpaintbox
1818
Antriebsmotor, Synchronmotor, Asynchronmotor, ServomotorDrive motor, synchronous motor, asynchronous motor, servomotor
1919
Changiergetriebe, Reibgetriebe, GetriebeTraversing gear, friction gear, gearbox
2020
--
2121
Getriebetransmission
2222
Changierantrieb, ChangiergetriebeTraversing drive, traversing gear
2323
Kupplungclutch
2424
Wellewave
2525
--
2626
Antriebsritzelpinion
2727
Stirnradspur gear
2828
Achsabschnittintercept
2929
Zapfenspigot
3030
Gehäusecasing
3131
Seitengestellside frame
3232
Lager, RadiallagerBearings, radial bearings
3333
Schneckeslug
3434
Schneckenradworm
3535
--
3636
Wellewave
3737
Mitnehmertakeaway
3838
Hebellever
3939
Gelenkjoint
4040
--
4141
Gehäusecasing
4242
Halterungbracket
4343
Klemmschraubeclamping screw
4444
Seitengestellside frame
4545
--
4646
Antriebssteuerungdrive control
4747
Sensorik, DrehgeberSensors, encoders
ΦΦ
LeitachspositionMaster axis
Φ̇.phi
Winkelgeschwindigkeitangular velocity
MM
Drehzahlrotation speed

Claims (27)

  1. Inking unit of a printing press for inking a forme cylinder (07), which inking unit has a roller train having at least two distribution rollers (12.1; 12.2), namely a distribution roller close to the forme cylinder and at least one distribution roller remote from the cylinder (12.1; 12.2), one of the distribution rollers (12.1) being rotationally driven only by means of friction with adjacent rollers (11; 13) and another of the distribution rollers (12.2) having a mechanical drive connection to a drive motor (18) for its rotational drive, characterized in that the drive motor (18) and a coordinated drive control (46) are formed in such a way that the drive motor (18) is operated with control or regulation at least during a printing mode in the thrown-on position of the inking unit (08) with regard to maintaining a predetermined electric power and/or an adjustable torque to be provided by the drive motor (18).
  2. Inking unit according to Claim 1, characterized in that, during the printing mode in the thrown-on position, the drive motor (18) of the distribution roller (12.1; 12.2) is operated, with regard to its actuation, with a free rotational speed, in particular with a rotational speed determined substantially via the friction with adjacent rollers (13).
  3. Inking unit according to Claim 1, characterized in that the forme cylinder (07) is rotationally positively driven by a drive motor (15) controlled with a respect to angular position, and a distribution roller (12.1; 12.2) of the inking unit is rotationally positively driven by a drive motor (18) mechanically independent of the drive of the forme cylinder (07).
  4. Inking unit according to Claim 1, characterized in that the distribution roller (12.1) close to the forme cylinder is rotationally positively driven only via friction and the distribution roller (12.2) remote from the forme cylinder is rotationally positively driven in addition by the drive motor (18).
  5. Inking unit according to Claim 1, characterized in that the drive motor (18) and a coordinated drive control (46) are formed in such a way that the drive motor (18) is operated with control or regulation during operation in the thrown-off position of the inking unit (08) with regard to its power and/or torque.
  6. Inking unit according to Claim 1 or 5, characterized in that a single specified value for the power and/or the torque of the drive motor (18) is held in readiness for the production speeds of the printing press.
  7. Inking unit according to Claim 1 or 5, characterized in that two different specified values for the power and/or the torque of the drive motor (18) are held in readiness for at least two different production speeds of the printing press.
  8. Inking unit according to Claim 1 or 5, characterized in that a dependence between specified values for the power and/or the torque of the drive motor (18) and the production speed of the printing press is held in readiness.
  9. Inking unit according to Claim 1, characterized in that the drive motor (18) and a coordinated drive control (46) are formed in such a way that the drive motor (18) is controlled or regulated with regard to a specified speed during operation in the thrown-off position of the inking unit.
  10. Inking unit according to Claim 9, characterized in that the drive motor (18) is operated with regulation during operation in the thrown-off position of the inking unit (08) with regard to a speed, and in that, for regulation with regard to the speed, a speed feedback representing the actual speed of the distribution roller (12.2) and/or of the drive motor (18) is provided.
  11. Inking unit according to Claim 9, characterized in that the drive motor (18) is driven with control during operation in the thrown-off position of the inking unit (08) with regard to a speed, and in that a setpoint frequency for actuating the drive motor (18) is provided to the drive control (46) as a specified value for control with regard to the speed.
  12. Inking unit according to Claim 11, characterized in that a dependence between specified values for the setpoint frequency and the production speed of the printing press is held in readiness.
  13. Inking unit according to Claim 6, 7, 8, 11 or 12, characterized in that the specified value is stored in the drive control (46) itself or a machine control of the printing press or a control station computer.
  14. Inking unit according to one or more of Claims 1 to 13, characterized in that the drive motor (18) is in the form of an asynchronous motor (18).
  15. Inking unit according to one or more of Claims 1 to 13, characterized in that the drive motor (18) is in the form of a synchronous motor (18).
  16. Inking unit according to one or more of Claims 1 to 13, characterized in that the drive motor (18) is in the form of a servo motor (18).
  17. Inking unit according to Claim 14, 15 or 16, characterized in that the drive motor (18) is formed to be regulatable or controllable alternatively in a first mode with regard to the specification of a speed or a frequency and in a second mode with regard to the specification of a power or of a torque.
  18. Inking unit according to Claim 1, characterized in that the drive motor (18) and a coordinated drive control (46) are formed in such a way that the drive motor (18), at least during the printing mode in the thrown-on position of the inking unit (08), is operated with control or regulation not with regard to a constant speed but with regard to a specified power and/or a settable torque.
  19. Inking unit according to Claim 1, characterized in that the drive motor (18) is operated with control or regulation, over a period lasting a plurality of roller revolutions, to achieve a constant specified torque.
  20. Inking unit according to Claim 1, characterized in that a constant torque is specified for the drive motor (18) during printing operation in the thrown-on position, at least for a constant production speed.
  21. Inking unit according to Claim 1, characterized in that, during printing operation in the thrown-on position, operation is effected with a free speed, i.e. without speed specification, apart from optionally present monitoring for a maximum speed of the drive motor (18).
  22. Inking unit according to Claim 1, characterized in that the forme cylinder (08) is rotationally driven by a drive motor (15) regulated with respect to angular position and mechanically independent of the drive motor (18).
  23. Method for operating an inking unit of a printing press for inking a forme cylinder (07), which inking unit has a roller train having at least two distribution rollers (12.1; 12.2), namely a distribution roller close to the forme cylinder and at least one distribution roller (12.1; 12.2) remote from the forme cylinder, one of the distribution rollers (12.1) being rotationally driven only by means of friction with adjacent rollers (11; 13) and another of the distribution rollers (12.2) being rotationally positively driven via a mechanical drive connection to a drive motor (18), characterized in that the drive motor (18) is operated with control or regulation at least during a printing mode in the thrown-on position of the inking unit (08) with regard to maintaining a specified electric power and/or an adjustable torque to be provided by the drive motor (18).
  24. Method according to Claim 23, characterized in that the forme cylinder (07) is rotationally driven by a drive motor (15) regulated with respect to angular position and mechanically independent of the drive motor (18).
  25. Inking unit according to Claim 1 or method according to Claim 23, characterized in that a specified torque is or will be predetermined as a reference variable for the control or regulation of the drive motor (18).
  26. Inking unit according to Claim 1 or method according to Claim 23, characterized in that operation is effected without speed and/or angular position specification during the printing mode in the thrown-on position of the distribution rollers (18).
  27. Inking unit according to Claim 1 or method according to Claim 23, characterized in that operation is or will be effected at a substantially free speed during the printing mode in the thrown-on position of the distribution rollers (18) to maintain a constant applied torque.
EP06708288A 2005-03-23 2006-02-15 Inking systems of a printing press and method for operating an inking system Not-in-force EP1871603B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08165619A EP2002979A1 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and methods for operating an inking system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005014060A DE102005014060B4 (en) 2005-03-23 2005-03-23 Inking unit of a printing press
PCT/EP2006/050961 WO2006100158A2 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and method for operating an inking system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08165619A Division EP2002979A1 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and methods for operating an inking system

Publications (2)

Publication Number Publication Date
EP1871603A2 EP1871603A2 (en) 2008-01-02
EP1871603B1 true EP1871603B1 (en) 2009-07-29

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EP06708288A Not-in-force EP1871603B1 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and method for operating an inking system
EP08165619A Withdrawn EP2002979A1 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and methods for operating an inking system

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EP08165619A Withdrawn EP2002979A1 (en) 2005-03-23 2006-02-15 Inking systems of a printing press and methods for operating an inking system

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US (1) US20080163773A1 (en)
EP (2) EP1871603B1 (en)
AT (1) ATE437756T1 (en)
DE (2) DE102005014060B4 (en)
WO (1) WO2006100158A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE490085T1 (en) 2007-02-07 2010-12-15 Koenig & Bauer Ag PRINTING UNIT OF A ROTARY PRINTING MACHINE AND A METHOD FOR WASHING A DAMPENING UNIT OF A PRINTING UNIT
DE102008000257B4 (en) 2008-02-08 2010-05-12 Koenig & Bauer Aktiengesellschaft Inking unit of a printing press
DE102012218423B4 (en) * 2012-10-10 2022-02-24 Koenig & Bauer Ag Inking unit of a printing unit, printing unit and method for operating an inking unit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283780A1 (en) * 1974-09-04 1976-04-02 Schulz Juergen Printing machine inking mechanism - has inking and transfer rollers combined into single removable unit
DE2731124C2 (en) * 1977-07-09 1979-11-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Drive for axially moving the distribution rollers of an inking unit with several rollers back and forth
US4208963A (en) * 1978-04-18 1980-06-24 Dahlgren Manufacturing Company Newspaper printing system
DE4430693B4 (en) * 1994-08-30 2005-12-22 Man Roland Druckmaschinen Ag Drives for a web-fed rotary offset printing machine
DE10044860B4 (en) * 1999-09-29 2008-04-30 Heidelberger Druckmaschinen Ag Drive device for printing machines
CN100410073C (en) * 2001-08-03 2008-08-13 柯尼格及包尔公开股份有限公司 Printing couple in printing machine
EP1441905B1 (en) * 2001-11-08 2010-01-27 Koenig & Bauer Aktiengesellschaft Drive of a printing group
DE10157243A1 (en) * 2001-11-22 2003-06-05 Roland Man Druckmasch Vibrator cylinder of rotary printing press with electromotor for traverse movement connected with friction cylinder
DE10219903B4 (en) * 2002-05-03 2014-10-09 Manroland Web Systems Gmbh Cylinder of a rotary printing machine

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DE102005014060B4 (en) 2008-11-20
DE102005014060A1 (en) 2006-09-28
ATE437756T1 (en) 2009-08-15
WO2006100158A2 (en) 2006-09-28
EP2002979A1 (en) 2008-12-17
EP1871603A2 (en) 2008-01-02
US20080163773A1 (en) 2008-07-10
DE502006004379D1 (en) 2009-09-10
WO2006100158A3 (en) 2006-11-09

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