EP3194170B1 - Setting and/or changing a profile in the fountain solution supply of a printing unit - Google Patents

Description

The invention relates to a device and a method for adjusting and / or changing a profile extending in the direction of printing width in the fountain solution guide and a printing unit with a device for adjusting and / or changing the profile according to claim 1 or 12 or 16.

The DE 29 31 579 C2 relates to an apparatus and method for zonal regulation of a over the print page width extending fencing medium profile in a printing unit with a printing cylinder, at least one inking the printing unit cylinder inking unit and at least one cooperating with the printing unit cylinder and / or the inking dampening unit, one over the printing width extending drying device is provided with a number of blowing tubes, through which dampening solution from a number of offset in the direction of pressure width axial sections is removable. The drying effect related to a surface to be treated can be varied in each case via a point mechanically or electronically coupled to the ink fountain setting, wherein the points coupled to the respective ink zone setting can be effected, inter alia, via a variation of the blowing angle or via a variation of the blowing air by means of individual valves. It may be provided in addition to a valve in a common supply line to the blowpipes, by which the dependence of the blown dampening solution quantity to the supplied amount of color can be changed depending on the factors influencing the amount of water in their amount of blown air.

In the DE 32 20 701 A1 Excess dampening solution is preferred as

Suction elements formed doctor sections of a rolling in the manner of a rider roll on a roller inked chrome roller removed. The control of the doctor blade sections takes place on the basis of measuring signals of sensors directed onto the lateral surface of the chrome roller and registering an oversupply of dampening solution. By the DE 32 47 761 C2 is a rolling in the manner of a rider roll on an inking roller measuring roller disclosed on which zonally by measuring the respective duty cycle of zonally associated heat sources zonal by sensors on the measuring roller determined dampening solution is variable.

The DE 42 06 525 C2 discloses a device for influencing the zonal damping agent distribution, wherein zonal adjustable throttle elements are provided in the form of flaps or sliders, which is directed to an inking roller and extending over the entire width of the air outlet opening sections to close or open by a thermally switchable drive means. By two serially arranged such drive means a stepwise adjustment of the opening covering throttle elements is possible.

In the DE 1 073 001 B Excess dampening solution is pushed back by a directed onto the printing plate air nozzle, wherein the air jet is inclined in the direction of rotation of the forme cylinder blowing.

In the DE 10 2008 042 620 B4 In the ink splitting process, ink that has been transported back upstream in smaller quantities is also freed of fencing agent by a microwave dryer from any possible re-entry into the ink supply.

By the WO 2014/056711 A1 is a working in simultaneous two-sided multi-color printing printing machine for securities printing with a multiple inking and dampening comprising printing unit disclosed.

In one via the website " http: //www.lechler.de / is-bin / intershop.static / WFS / LechlerDE-Shop-Site / LechlerDE-Shop / en_DE / PDF / 05_service_support / industrie / katalog / deutsch / Katalog_112 / 06_Luft_d_0613.pdf " from 15.09.2014 the company Lechler to be reached catalog with the name" air nozzles "are on page 6.8 so-called tongue nozzles disclosed, for their application, inter alia, a blow-off of liquids is specified.

The EP 1 033 245 A1 discloses a spray dampening unit with spray nozzles spraying dampening solution on a roller. The spray nozzles are operated pulsed at a frequency and a predetermined phase shift.

By the DE 101 60 734 A1 a printing press is known, wherein a tempering over the entire width of a roll, and further, this offset in the circumferential direction tempering each extending over a printing form width. Through the latter, printing form control of the color density is possible.

In the DE 199 24 997 A1 dampening solution is evaporated in an inking unit of a printing machine by a vacuum chamber is provided at the periphery of a roller. In addition to this, a further vacuum chamber may be provided on an opposite longitudinal side of the roller, that is offset by about 180 °.

The DE 693 07 643 T2 relates to a device for removing the dampening for printing machines, wherein in the axial direction of a roller a plurality of directed onto the roll surface fans are provided. By means of appropriate switching means, both the width of the group of active fans can be adapted to the substrate width and the respective air volumes to the humidity.

By the DE 199 58 252 A1 is a wet-controlled printing machine known, wherein on the surface of a wetted roller a blower assembly is directed. This can be carried out by fans arranged in the axial direction next to one another or by a plurality of nozzle openings with controllable throughput supplied via a fan and distributed in zones.

The DE 298 05 201 U1 relates to an anilox inking unit for an offset rotary printing press with a blowing device, by which pending surface water is to be removed from the surface of the anilox roll. In one embodiment, the blowing device is given by formed as holes in a nozzle bar nozzles whose air volume is adjustable sideways. In another embodiment, the blowing device is given by individually switched to fans. In the case of nozzle orifices, groups of orifices may be controlled by valves in terms of airflow. The amount of air can also be changed by varying the pressure applied to the input side of the fan assembly. The device should also be used for zoneless inking units that do not contain anilox roller.

The US 4,452,139 A relates to a method and apparatus for inking and moistening an offset printing plate with one or more of four evaporation devices set forth therein. In three of the evaporation devices, a blowing surface of a roll surface is formed by a slit or slot-shaped opening and in a further embodiment by juxtaposed nozzles whose fan-shaped steel overlap to produce a continuous flow.

The EP 2 008 815 A2 relates to a method and a device for applying dampening solution or paint, wherein the order is pulsed there.

The invention is based on the object, an apparatus and a method for adjusting and / or changing a extending in the direction of printing width profile in the dampening solution guide and to provide a printing unit with a device for adjusting and / or changing the profile through which or which a high print quality can be achieved when printing in a wide range for the color input quantity related to the area to be printed.

The object is achieved by the features of claims 1 and 12 or 16.

The achievable with the invention advantages are that when printing in a wide range for the related to the area to be printed Color entry quantity high print quality is achievable. This is true even and / or especially in connection with the use of a dampening unit, which is not or not to the same extent as an associated inking, ie not or in relation to an associated inking unit only broader sections, zonal with respect to the dampening agent input adjustable.

By means of the invention, a greater variability in the intensity of the sliver and a finer gradation of the axial course, and thus an improvement in the print quality, can be achieved for both high and lowest color density.

In a particularly suitable for a good print quality for smallest amounts of color execution of a device for adjusting and / or changing a extending in the direction of a printing width Fechtmittelprofils in a printing unit, which at least one printing cylinder, at least one inking the printing unit cylinder inking unit and at least one with comprising the printing unit cylinder and / or the inking unit cooperating dampening unit, extending over the printing width drying device is provided with a plurality of drying elements by their action on a surface to be treated of the printing dampening solution from a number of offset in the direction of printing width axial sections is removable , and which are independently variable in the extent of their action on the axial section.

In a first particularly advantageous embodiment of this device, the drying elements configured as nozzles in an advantageous embodiment are designed and arranged in the printing unit so that several or all of the axial sections formed as effective sections with a working width of the drying elements in the printing unit are viewed in their direction in the direction of printing width overlap at least 20% of its width with an adjacent axial section. In an advantageous development here are the axial sections each to remove the Moisturizer associated drying elements in the extent of their action on the surface to be treated individually adjustable via actuatable by operating elements of a control interface in particular remotely adjustable.

In another particularly advantageous embodiment o. Particularly suitable device are - instead of or in addition to the features of the first-mentioned particularly advantageous embodiment of the device - several or all of the Axialabschnitten for removing the dampening agent associated drying elements via operable by operating elements and a signal-technically connected to the control elements each individually in the extent of their time or an area-averaged action on the surface to be treated between an inactive operating state, an active operating state representing a maximum value and at least one active operating state occupying an intermediate value intervening therebetween and / or a control device is provided, by which several or all of the drying elements in an active Operating state individually clocked, also referred to as pulsed, between a switching state "off" and a switching state "on "are operable or operated or are.

In operation, excess dampening solution is removed from a printing unit by a drying device with a plurality of independently adjustable in their effect drying elements of a plurality of offset in the direction of printing width axial sections. In a particularly advantageous embodiment, this is in a sequence or operating situation, in which z. B. particularly fast and / or as much dampening solution is removed, dampening solution removed from at least one of the axial sections by the trained as active section of an active drying element axial section over a length of at least 20%, advantageously even 40 - 60%, in its effective width with the Effective width of an effective section of an adjacent active drying element formed axial section overlaps. This can improve the possibility of gradation. In another particularly advantageous embodiment is - instead of or in addition to the first-mentioned particularly advantageous embodiment of the operation - in response to a default made by actuation of signaling devices connected to a control elements default an individual variation in the amount of a related axial section in a peripheral portion effect between a inactive operating state, an active operating state representing a maximum value and at least one active operating state occupying an intermediate value intervening therebetween.

The aforementioned particularly advantageous devices and methods further developing features, as set forth below or based on the embodiments or in the features of the claims, may be used to form an advantageous development individually or in addition to several.

In a particularly cost-effective and / or robust solution, the switching and / or adjusting means as a binary-acting switching means, in particular as a between a state "on" and a state "off" - z. B. operatively without intermediate values - switchable valve, be formed. Alternatively, a continuous valve may be provided, in particular for a variant that can be varied in terms of the amount of jet power.

By a specially made setting of the drying elements, a pattern in the exposure to areas of simple, double and no admission can be achieved or be.

In a favorable embodiment, a timing can be provided to achieve different surface-related effect.

In a preferred embodiment, the drying elements can be used as blowing elements, in particular as nozzles, preferably as flat jet nozzles and / or as nozzles in the so-called deflector or baffle plate design.

By a Vorordnung a switching element, by which the same level for several or all of the drying elements is adjustable, the effect of the blowing elements is to be adapted to specific operating conditions altogether.

Under an "overlap" is here preferably neither a complete covering one of the two involved axial sections nor their congruence, in terms of axial position and length - to be understood. In particular, here an "overlap" - based on a same or a smaller of the two axial sections involved - at most 80%, preferably at most 60% coverage.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

ein Ausführungsbeispiel für eine ein Druckaggregat umfassende Druckmaschine;

Fig. 2

eine detailliertere vergrößerte Darstellung des Ausführungsbeispiels für ein Druckaggregat aus Fig. 1;

Fig. 3

ein vergrößerter Ausschnitt aus dem Ausführungsbeispiel für das Druckaggregat aus Fig. 2 mit einer Vorrichtung zur Einstellung und/oder Änderung eines sich in Richtung Druckbreite erstreckenden Profils in der Feuchtmittelführung;

Fig. 4

eine schematische Darstellung der Anordnung der Vorrichtung zur Einstellung und/oder Änderung eines sich in Richtung Druckbreite erstreckenden Profils mit einer Anzahl von Trockenelementen im Druckwerk;

Fig. 5

eine dreidimensionale Vorderansicht einer Ausführungsform für eine als Blaseinrichtung ausgebildete Trockeneinrichtung;

Fig. 6

ein Schnitt durch eine mit einem Rotationskörper zusammen wirkende Trockeneinrichtung aus Fig. 5;

Fig. 7

eine dreidimensionale Schrägansicht einer Ausführungsform für eine als Blaseinrichtung ausgebildete Trockeneinrichtung und deren Versorgung mit Betriebsmittel;

Fig. 8

eine schematische Darstellung eines Fluidstrahls mit einem vom Rechteckprofil abweichenden Strahlprofil (a), einem sich divergent öffnenden Strahlwinkel (b) und einem sich in einer Zielebene ergebenden Strahlbild (c);

Fig. 9

eine schematische Darstellung zur Erläuterung eines nicht zur Erfindung gehörigen Beispiels zur Ausbildung und Anordnung unabhängig voneinander stellbarer Axialabschnitte;

Fig. 10

eine schematische Darstellung zur Erläuterung einer erfindungsgemäßen Ausführung zur Ausbildung und Anordnung unabhängig voneinander stellbarer Axialabschnitte;

Fig. 11

eine schematische Darstellung einer Bildschirm- oder Anzeigemaske mit Stellelementen zum Stellen einer Feuchtmittelentfernung in Axialabschnitten in einer ersten Ausführung;

Fig. 12

eine schematische Darstellung einer Bildschirm- oder Anzeigemaske mit

Fig. 13

Stellelementen zum Stellen einer Feuchtmittelentfernung in Axialabschnitten in einer zweiten Ausführung.

Show it:

Fig. 1

an embodiment of a printing machine comprising a printing press;

Fig. 2

a more detailed enlarged view of the embodiment of a printing unit Fig. 1 ;

Fig. 3

an enlarged section of the embodiment of the printing unit Fig. 2 with a device for adjusting and / or changing a profile extending in the direction of the printing width in the dampening solution guide;

Fig. 4

a schematic representation of the arrangement of the device for adjusting and / or changing a extending in the direction of printing width profile with a number of dry elements in the printing unit;

Fig. 5

a three-dimensional front view of an embodiment for a blowing device designed as a blowing device;

Fig. 6

a section through a cooperating with a rotary body drying device Fig. 5 ;

Fig. 7

a three-dimensional perspective view of an embodiment for a designed as blowing device drying device and their supply of resources;

Fig. 8

a schematic representation of a fluid jet with a deviating from the rectangular profile beam profile (a), a divergently opening beam angle (b) and resulting in a target plane jet image (c);

Fig. 9

a schematic representation for explaining an example not belonging to the invention for the formation and arrangement of independently adjustable axial sections;

Fig. 10

a schematic representation for explaining an embodiment according to the invention for the formation and arrangement of independently adjustable axial sections;

Fig. 11

a schematic representation of a screen or display mask with actuators for providing a dampening solution removal in axial sections in a first embodiment;

Fig. 12

a schematic representation of a screen or display mask with

Fig. 13

Control elements for setting a dampening solution in axial sections in a second embodiment.

A printing machine, z. As a sheet-fed press or a web-fed printing press, comprises on the input side a feeder 01, through which the printing machine is supplied with a sheet or web-shaped substrate 02, at least one printing unit 03 through which the substrate 02 one or both sides one or more colors printing, and a product display 04 on which printed products or intermediates are laid out in a batch or continuous form (see, for example, US Pat. Fig. 1 ). In a preferred embodiment and set forth in the figures, the printing machine as a printing machine for security printing, for example, for printing web-like substrate 02, z. As a Bedruckbahn, or preferably for printing sheet-like substrate 02, z. B. substrate sheet 02, executed. The feeder 01 is in this case z. B. formed as a sheet feeder 01, in which a stack of supplied and to be printed with printing material 02 can be arranged. The printing unit 03 of z. B. as a security printing machine trained printing machine can in principle as on any printing method, preferably on a direct or direct flat printing in particular, based printing unit 03, be formed. In the example presented, the printing substrate 02 is designed to be printed on at least one side in the indirect high-pressure process and / or in the offset process. The printing material 02 is preferably designed as paper, which z. B. with fibers of textile, linen or hemp, is formed and / or preferably in the unprinted state includes watermarks.

Preferably, the printing machine is designed as a sheet-fed printing press for security printing and z. B. to form printed from sheet 02 printed sheet, in particular securities sheet such. B. sheets with banknotes, as products or weiterzuverarbeitende intermediates.

The printing material 02 are in this case held as a stack in the trained as a sheet feeder 01 feeder 01, of which they by a gripper device 06, not shown in detail, which z. B. suction cups comprises, taken individually and isolated over a conveyor line 07, z. B. a belt system 07 preferably designed as a conveyor system 07, are promoted to an entry area in the printing unit 03. At the entrance to the printing unit 03 of the printing material 02 to a the printing unit 03 associated conveying path 08, z. B. a printing unit 03 associated conveyor system 08 pass through which the printing material 02 along its transport path one or more pressure points 11; 12 happens before he from this the printing unit 03 associated conveyor line 08 to a third conveyor line 09, z. B. a belt system 09, passed and through this to the product display 04, z. B. a one or more sheet trays for stacking product delivery 04, is transported.

The conveyor unit 08 assigned to the printing unit 03 (see, for example, FIG. Fig. 2 ) is preferably designed as a gripper system 08, in which the printing material 02 is fed by successive transfer between a plurality of successive drums and / or cylinders in the transport direction along the transport path through the printing unit 03. At the end of z. B. trained as a gripper system 08 conveyor section 08 of the printing material 02 is discharged to the third conveyor section 09.

In the preferred embodiment of the printing unit 03 includes this at least on one side of the conveying section 08 a z. B. as an offset printing unit 11 formed printing unit 11, which is preferably designed as a collective printing unit 11. The printing unit 11 comprises at least a first formed as a transfer cylinder 12 ink-guiding printing cylinder 12, which relative to the ink stream upstream with at least one further printing cylinder 13, z. B. at least a first form cylinder 13, in the execution as a collective printing unit 11 preferably several form cylinders 13, and on the other hand on the substrate to be printed 02 with a first transfer cylinder 12 serving as an abutment printing cylinder, z. B. a counter-pressure cylinder 14, cooperates. In their Nippstelle form transmission and impression cylinders 12; 14, a printing point 16 from where ink is discharged from the transfer cylinder 12 to the substrate 02. The at least one, in particular each of the forme cylinder 13 is colored by a - arranged with respect to the resulting color flow - upstream in the printing unit 11 inking unit 17 and wetted by a dampening unit 18 with fountain solution. Inking and dampening unit 17; 18 can in principle be separated from each other directly one or more times with the form cylinder jacket surface or, for example, instead of this separate contact to the forme cylinder 13 or preferably as shown below in addition to this respective direct contact to the forme cylinder 13 already upstream of the forme cylinder 13 via roller contact one or more times together in a fluid exchange enabling contact, e.g. B. rolling contact, stand. In particular, in the event that inking and dampening 17; 18 additionally or instead of the coupling via the forme cylinder 13 are fluidly coupled upstream of the forme cylinder 13, these may also be referred to collectively as inking and dampening unit 17,18.

In a preferred embodiment, the first printing unit 11 is part of a double printing unit 11, 21 for a simultaneous two-sided printing, wherein the impression cylinder 14 as a second color-leading printing cylinder 14, for example as a second transfer cylinder 14, a second, basically based on any printing method, for example However, also designed as offset printing unit 21 printing unit 21 executed. The printing cylinder 14 designed as a transfer cylinder 14 in turn interacts with at least one forme cylinder 19. For the sake of simplicity, the one or more second form cylinder 19 inking or wetting with wetting agent second inking and dampening 17; 18 with the first to the first inking and dampening 17; 18 same reference numerals considered because they are formed for the case shown here except for their arrangement and orientation in the printing unit 03 in the same manner.

In principle, for the preferred embodiment of a one-sided or, in particular, two-sided multi-color printing, a respective inking unit 17, a dampening unit 18, a shaping cylinder and a transfer cylinder 12; 13; 14; 19 comprehensive printing units 11; 21 or for the simultaneous two-sided printing corresponding double printing units 11, 21 may be provided in the printing material behind the other. Preferably, however, several act, z. B. four, first form cylinder 13 at the periphery in succession with a same first transfer cylinder 12 on the one substrate side together and form for the simultaneous multi-color printing a printing group of a one-page collective printing unit 11. Preferably also act on the other substrate side several, z. B. four, second cylinders 19 with associated inking and dampening 17; 18 together with a second transfer cylinder 14 as a single-page collective printing unit 09 and form with the first printing group in total a collective printing unit 11, 21 for the simultaneous two-sided multi-color printing. Between the transfer cylinders 12; 14, the pressure point 07 is formed here as a double pressure point 07. Such simultaneous two-sided printing collective printing units 01 are particularly advantageous where high demands on registration - both on the same, as well as on the two sides of the substrate - and / or required special color design. A printing unit 03 or double printing unit 11, 21 designed in this manner is preferably designed for double-sided printing on both sides for the security printing. The printing substrate 06 may be web-shaped or preferably formed in the form of individual sheets.

, m > 1, vorteilhaft m ≥ 20, z. B. m = 28) von durch nicht dargestellte Schalt- und/oder Stellmittel stellbare Farbzonen z_i (i = 1, ..., m) nebeneinander über zumindest die durch das Druckwerk 11; 21 zu druckende Druckbreite vorgesehen sind. Die Zonen können durch z. B. als einzeln stellbare Dosiermittel, z. B. Pumpen und/oder Ventile als Schalt- und/oder Stellmittel oder bevorzugt durch mittels als Stellantriebe ausgebildete Schalt- und/oder Stellmittel einzeln stellbarer Farbmesser gebildet sein . Ein Stellen kann, insbesondere fernbetätigt, über Stellelemente 59 einer Bedienerschnittstelle, beispielsweise an einem Steuerstand 51, insbesondere Leitstand 51 erfolgen. Dabei können eine Gruppe 53 solcher, schaltungstechnisch den Farbzonen z_i hinsichtlich des Stellens zugeordneter und/oder zuordenbarer Stellelemente 59 als Tasten- oder Tasterpaare ausgebildet sein, beispielsweise an einem zur Abmusterung von Druckprodukten dienendem Ablagetisch 52, und/oder als manipulierbare Felder in einer zur zahlenmäßigen und/oder graphischen Visualisierung der jeweiligen Farbzoneneinstellung eingerichteten Bildschirm- oder Anzeigemaske 54 eines Bildschirmes 56. Die Manipulation kann dabei über Stellelemente einer mit den Feldern der Bildschirmmaske interagierenden Bedieneinrichtung 57, z. B. einem Tasten umfassenden Bedienfeld 57, und für den Fall einer touchscreenfähigen Ausführung des Bildschirmes 56 ggf. direkt durch Interaktion mit entsprechend vorgesehenen Bildschirmbereichen oder aber in gemischter Form durch Aktivierung des die betreffenden Farbwerkzone z_i repräsentierenden Feldes am Bildschirm 56 und Manipulation der Einstellung an der Bedieneinrichtung 57 erfolgen.The inking unit 17 can basically in any way with a plurality of rollers 23; 24; 26; 27 comprehensive, from a Farbeintragseinrichtung 22 downstream to the forme cylinder 13; 19 Einziehigen extending or possibly be at least partially trained in several parallel roller strands rolling compact. At the At the downstream end of the roller train or the inking unit 17 acts on one or more as applicator rollers 27, in particular inking rollers 27, designated rollers 27 and inking roller 27 of the roller train with the lateral surface of the respective forme cylinder 13; 19 together. Preferably, the inking unit 17 is configured as an inking unit 17 which can be arranged in zones with respect to the quantity of ink to be introduced, a number m (m ∈

, m> 1, advantageously m ≥ 20, z. B. m = 28) of not shown by switching and / or adjusting means adjustable color zones z _i (i = 1, ..., m) side by side over at least the by the printing unit 11; 21 to be printed printing width are provided. The zones can be replaced by z. B. as individually adjustable dosing agent, eg. As pumps and / or valves as switching and / or adjusting means or preferably by means of designed as actuators switching and / or adjusting means individually adjustable ink knife. A location can, in particular remotely operated, via adjusting elements 59 of an operator interface, for example, on a control station 51, in particular console 51 done. In this case, a group 53 of such, _in terms of circuitry, the color zones z _i can be configured as key or probe pairs with respect to positioning and / or assignable positioning elements 59, for example at a deposition table 52 serving to match printed products, and / or as manipulatable fields in a numerical and / or graphical visualization of the respective color zone setting screen or set up display screen 56. The manipulation can be done via control elements of an interacting with the fields of the screen mask operating device 57, z. B. a keypad comprehensive control panel 57, and in the case of a touchscreenfähige execution of the screen 56, if necessary, directly by interaction with correspondingly provided screen areas or in mixed form by activating the respective inking zone z _i representing field on the screen 56 and manipulation of the setting the operating device 57 done.

Remote control means in this sense - in contrast to an on-site setting - that the control elements 59 centrally adjustable in the same control interface are, and not only individually by each decentralized for each of the switching and / or adjusting means along the row of inking zones z _i provided mechanical or electrical control elements.

In an advantageous embodiment, the first and / or second printing unit 11; 21 with the respective form cylinder 13; 19 cooperating inking unit 17 formed as a discontinuous color inking Heberfarbwerk 17, as it is particularly advantageous for printing units 01, in which a reliable dosing and printing should be guaranteed even with the smallest amounts of ink. This comes z. As in securities printing, especially in the securities offset printing, special importance.

The inking unit 17, which is preferably in the form of a lifting inking unit 17, comprises at the upstream end the at least one ink-introducing device 22, which has a roller 29, for example a temperature-controlled roller 29, which is assigned to the ink-feeding device 22. B. one with the above-mentioned ink knives each a metering gap forming ductor roller 29 or ink fountain roller 29, a roller 29 coloring this with ink color source 31 z. B. a paint box 31 or a chambered doctor blade 31, and between this roller 28 and a downstream of the ink application device 22 subsequent first roller 23 of the roller train oscillating roller 28, z. B. squeegee roller 28 includes (for example, at the inking unit 17 bottom right in Fig. 2 designated). Between the first roller 23 and the at least one applicator roller 27, a plurality of further, preferably at least two, further rollers 24; 26, z. B. at least one with "soft" and a "hard" surface (see below) formed inking roller 24; 26, in the compactor to form cylinder 13; 19 be provided. The inking units 17 may, depending on spatial conditions, a different number of such lying between the first roller 23 and the or the applicator rollers 27 rollers 24; 26 include.

The designed as a ductor or ink fountain roller 29 roller 29 is preferably rotatably positively driven, preferably z. B. by means of a stepping motor in steps Increments in the range of z. B. 1 ° to z. B. 65 ° clocked driven. The lifting roller 18 is z. B. pivotally mounted about an axis of rotation of the roller 29 of the ink application device 22 parallel pivot axis. The first or cylinder remote roller 23 of the compactor, also referred to as Nacktwalze 23, has a hard surface, for. B. with a hardness of at least 60 Shore A on. It may be formed, for example, from a chromed surface or advantageously with a surface made of a plastic, such as preferably Rilsan®. At the first or Nacktwalze 23 close further downstream rollers 24; 26 of einzuschigen or preferably at least partially into several parallel partial strands dividing roller compactor to the one or more with the forme cylinder 12; 19 cooperating application rollers 27, wherein the roller train as one of the rollers 24; 26 preferably at least one changeable trained inking roller 26, z. B. so-called friction roller 26 or distribution cylinder 26 includes. Between the nip roller 23 and a downstream first rubbing roller 26 can be used as a roller 24 an inking roller 24 with a soft surface (eg., At most 50 Shore A, preferably at most 45 Shore A), z. B. ink transfer roller 24 may be provided. In a preferred development of the inking unit 17, this is formed with two inking devices 22 for parallel inking in the inking unit 17, wherein the color input from the respective inking device 22 ago, z. B. in accordance with the above, in each case by the Farbeintragseinrichtung 22 via a respective Farbeintragseinrichtung 22 attributable roller 29 at a downstream point on a common first inking roller 23, in particular on the same Nacktwalze 23 takes place. This parallel inking allows a two-color printing through a same inking, whereby two colors can be printed next to each other or in itself (so-called "iris print"). (In each case) the (respective) lifting roller 28 in the axial direction each have a lateral surface with a profile in the longitudinal direction , wherein raised, strip-shaped circumferential portions is interrupted by at least one with respect to the generatrix of the raised portions recessed, strip-shaped circumferential portion.

The dampening unit 18 can also basically in any way -. B. as a contactless or as Kontaktfeuchtwerk - with a plurality of rollers 33; 34; 36, z. B. dampening rollers 33; 34; 36, extending from a fountain solution introduction device 32 downstream to the forme cylinder 13; 19 einzuschigen toward or possibly be at least partially trained in several parallel roller strands rolling compactor. At the downstream end of the roller train or the dampening unit 18 acts in operation via at least one as applicator rollers 36, in particular dampening roller 36, designated roller 34 of the compactor with the lateral surface of the respective forme cylinder 13; 19 together.

In an advantageous embodiment, the first and / or second printing unit 11; 21 with the respective form cylinder 13; 19 cooperating dampening unit 18 z. B. as - drei- or vierwalziges - film dampening unit 18 is formed.

The Z. B. formed as a film dampening unit 18 dampening unit 18 includes at the upstream end of the at least one dampening solution input device 32 with a preferably rotatory positively driven roller 37, z. B. wet dip roll 37, and a roller 37 with a wet film wetting dampening source 38 z. B. a dampening solution tank 38 or a spraying or spinning device. The dampening means 32 associated roller 37, which is formed, for example, in the above sense hard surface acts downstream with a first roller 33 of the dampener roller, z. B. a wet transfer roller 33 together, which is preferably formed with a soft surface. From there, the fountain solution on a downstream second roller 34, preferably changierbar trained dampening roller 34, z. B. so-called friction roller 34 and friction cylinders 34 delivered, which is in rolling contact with the at least one applicator roller 36.

In an advantageous embodiment of the color and / or dampening unit shown here 17, 18 are the dampening unit and the Farbwerkswalzenzug upstream of the respective contact with the forme cylinder 13; 19 also with each other in a fluid exchange enabling contact. The contact consists, for example, between one with regard to a direct downstream color flow to the forme cylinder 13; Attributed to the 19 Farbwerkswalzenzug, for the possibly present case of several serially provided in the compactor cylinder distribution cylinder 26 in this strand the forme cylinder 13; 19 next, distribution cylinder 26 and, for example, the one or more applicator roller 36 to be attributed to the dampening roller train in view of the direct downstream dampening solution flow.

, n > 1, vorteilhaft n ≥ m/2, insbesondere n ≥ m ≥ 20, z. B. m = n + 2, beispielsweise m = 30) in Richtung Druckbreite zueinander versetzten Axialabschnitten a_j (j = 1, ..., n) des Farb- und/oder Feuchtwerks 17, 18; 17; 18 im Sinne von Feuchtmittelsenken zu entfernen ist. Als 'Druckbreite' wird hierbei die maximal mögliche, in axialer Richtung der Druckwerkszylinder 12; 13; 14; 19 verlaufende mit dem betreffenden Druckwerk 11; 21 zu druckende Breite verstanden.In the case of possibly large zonal differences in the ink requirement, which may occur in securities printing in some cases the least required amounts of ink, quality losses in the printed image may be caused by the z color zones z _i downstream in the zonal strongly differing color decrease in at least a part radial flight continuing axial sections of the inking and / or dampening unit 17, 18; 17; 18 may be caused by the zonal not or less well to varying dampening solution caused disturbance of the ink-dampening solution balance. In order to counteract this problem and to be able to obtain a high print quality for conditions which are particularly difficult with respect to color distribution, a device for adjusting and / or changing a profile of the dampening solution guide extending in the direction of the printing width is provided, by means of which at least one point in the ink fountain guide Fluid flow of the printing unit 11; 21 dampening solution specifically and individually from n (n ∈

, n> 1, advantageously n ≥ m / 2, in particular n ≥ m ≥ 20, z. B. m = n + 2, for example, m = 30) in the direction of pressure width staggered axial sections a _j (j = 1, ..., n) of the inking and / or dampening unit 17, 18; 17; 18 in the sense of dampening sinks to remove. As 'print width' is in this case the maximum possible, in the axial direction of the printing cylinder 12; 13; 14; 19 extending with the relevant printing unit 11; 21 to be printed width understood.

The mutually offset and to be treated by the device axial sections a _j can in principle be spaced apart from each other (not explicitly shown) or immediately adjacent to each other (see, eg. Fig. 9 ) or with an adjacent axial section a _j-1 ; _{aj + 1} overlapping, according to the invention at least 20%, preferably at least 30%, preferably from 40 to 60% of its width - in particular on at least one of the two sides - with an adjacent axial section a _j-1 ; a _{j + 1} overlapping, be arranged (see, eg. Fig. 10 ).

, I > 1), insbesondere der Anzahl n der zu beeinflussenden Axialabschnitten a_j entsprechenden Anzahl I, unabhängig voneinander hinsichtlich einer Aktivierung und/oder Intensität stellbarer und auf z. B. eine Oberfläche F eines als Druckwerkszylinder 12; 13; 14; 19 oder Farb- und/oder Feuchtwerkswalze 23; 24; 26; 27; 33; 34; 36 ausgebildeten Rotationskörpers 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 gerichteter, kontaktlos (z. B. elektromagnetische oder Wärmestrahlung oder Fluidstrahl) oder unter Kontakt (z. B. Rakelblätter oder Wischeinrichtungen) mit der Mantelfläche F zusammen wirkender Trocknungselemente 41_k, (k = 0, 1, ..., I-1), insbesondere einer der Anzahl n der zu beeinflussenden Axialabschnitten a_j entsprechenden (d. h. I = n) Anzahl I unabhängig voneinander hinsichtlich eines wahlweisen Aktivierens und/oder einer Variation in Stärke und/oder Breite und/oder Temperatur eines Luftstromes stellbare und auf z. B. eine Oberfläche F eines als Druckwerkszylinder 12; 13; 14; 19 oder Farb- und/oder Feuchtwerkswalze 23; 24; 26; 27; 33; 34; 36 ausgebildeten Rotationskörpers 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 gerichtete Strahlquellen 41_k, bevorzugt Blaselemente 41_k. Dabei ist unter einem selben Trocknungselement 41_k bzw. Blaselement 41_k auch ein Trocknerelement 41_k bzw. Blaselement 41_k mit mehreren lediglich gemeinsam stell- bzw. schaltbaren Wirkeinheiten, beispielsweise ein mehrstrahliges Blaselement 41_k, zu verstehen.The device for adjusting and / or changing the axially extending dampening solution profile, hereinafter also referred to as wet-film positioning device for short, comprises for this purpose a rotating body 12 formed on a surface F, in particular lateral surface F of a cylinder or roller; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36, directed drying device 39, preferably designed as a blowing device 39, with a number I (I ∈

, I> 1), in particular the number n of the axial sections a _j to be influenced corresponding number I, independently of one another with respect to an activation and / or intensity adjustable and z. B. a surface F as a printing cylinder 12; 13; 14; 19 or ink and / or dampening roller 23; 24; 26; 27; 33; 34; 36 formed rotational body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 directed contactless (eg electromagnetic or thermal radiation or fluid jet) or under contact (eg doctor blades or wiping devices) with the lateral surface F acting together drying elements 41 _k , (k = 0, 1, ..., I- 1), in particular one of the number n of the axial sections a _j to be influenced (ie I = n) number I independently adjustable with respect to an optional activation and / or a variation in strength and / or width and / or temperature of an air flow and z , B. a surface F as a printing cylinder 12; 13; 14; 19 or ink and / or dampening roller 23; 24; 26; 27; 33; 34; 36 formed rotational body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 directed beam sources 41 _k , preferably blowing elements 41 _k . In this case, under a same drying element 41 _k and _k blowing element 41 is also a dryer member 41 _k or _k blowing element only manipulated together with several 41 or switchable acting units, for example, a multi-jet blowing element 41 _k to understand.

The mentioned, independently adjustable axial sections a _j form in the inking 17 transmitted sense independently adjustable by dampening solution "wet zones" from.

The drying elements 41 _k or blowing elements 41 _k are in the printing unit 11; 21 arranged such that viewed in the axial direction, ie in the direction of printing width, the above-mentioned, individually influenced axial sections A _j by effective sections a _i with a respective width b _j , z. B. effective width b _j , are formed or on the drying device 39 together with the rotating body in its axial direction as a result of the action of the respective drying or blowing elements 41 _k caused effect, for example, by the impact of directed electromagnetic radiation As radiation sources running drying elements 41 _k or preferably an impact of gas of a directed gas jet, by which a gas mixture, in particular air should be understood, perceptible and / or formed.

In general - in the case of a sharp or not sharply formed edge or boundary - can be considered as a section end of the axial section a _j, for example, that location in the axial direction of the relevant section, at which the transverse to the axial direction in a plane perpendicular to the central plane of maximum value for one of the relevant, on the plane perpendicular to the mean beam direction plane surface-related beam intensity I representing size has fallen to 50% of the corresponding, present in the middle of the thus determined effective sections a _i maximum value (see, eg. Fig. 8a ). In the case of electromagnetic radiation, this variable can be the area-related radiant power and, for a directed gas jet, the area-related volumetric flow, based on a measurement and / or indication in a direction perpendicular to the mean beam direction of the relevant drying element 41 _k and the impact point of the mean beam direction on the surface F comprehensive plane (also referred to as the normal plane E _N ). In the case of a sharp, z. B. formed with a step-like edge is inter alia, the above-mentioned 50% value in this side flank.

The mean beam direction or beam axis A is to be understood as that beam direction which, averaged over the entire beam S in the above-mentioned normal plane E _N , results in the energy or gas flow as resultant. This falls z. B. - in particular for the case of symmetrical about the central beam expression - with the central beam of - for example, as an omnidirectional beam, as an elliptical beam or as an approximately slit or rectangular flat beam formed - beam S together (see, eg. Fig. 8 ).

For cases in which the axial lateral side drop in the intensity from 90% to 10% of the maximum beam intensity I takes place within 10% of the above in the above manner above the 50% limit width in the axial direction, is hereinafter of a in the Substantially or nearly sharp-edged axial section a _j with one of the widths to be ascertained above the 50% limit in the axial direction as the effective width b _i (see, for example, 10%, 50% and 90% isins in FIG Fig. 8c ). In each case mentioned - whether sharp-edged, almost sharp-edged or shallower sloping - the effective width b _{i can be seen} in the axial extent of the axial section a _j , which is the distance between the two end 50% values for the above-mentioned beam intensity I.

The formed by a beam source 41 _k drying element 41 _k has - if they are not negligible in the manner of a point source with respect to the effective width b _i , z. B. at least factor 100 smaller axial extent can be considered - extending in the axial direction width b _{B of} the beam S at the level of the beam exit, ie at the location at which the beam S, the drying element _k leaves 41 and between the drying element _k and the corresponding 41 enters surface to be treated F, at which most of the generated at the surface F and / or to be obtained effective width b _i. In a preferred embodiment, however, a diverging beam is provided, wherein the width b _{B of} the beam S at the location of the beam exit, z. B. also referred to as foot width b _B , at most 50%, in particular at most 20% of the surface to be dried F - at least under operating conditions, eg. B. an operating pressure, for example, at a value between 1 and 6 bar, in particular between 2 and 5 bar, preferably at 3.0 ± 0.5 bar (with 1 bar = 10 ⁵ Pa) is above ambient pressure - effective range to be achieved b _i corresponds to the axial portion a _j intended for the treatment.

To prefer is the execution of the drying element 41 _k or the beam source 41 _k and its arrangement in the printing unit 11; 21 or in the inking and / or dampening unit 17, 18; 17; 18 such that - at least under a defined operating condition of the equipment used, for. B. a below-mentioned operating pressure - a normal distance a _N , ie the distance from the beam center of the beam source forming drying element 41 _k along the mean beam direction to the point of impact on the surface to be treated F and a beam from the center to the section end of the axial section a _j extending edge beam an angle α1; α2 of z. B. at least 20 °, in particular at least 25 °, and / or at most 50 °, in particular at most 45 ° include, so that a beam angle α of at least 40 ° and / or at most 100 °, in particular at least 50 ° and / or at most 90 ° is trained or is. As beam angle α is z. B. the angle between the two emanating from the exit point of the central jet and the axial portion A _J limiting in the axial direction marginal rays, wherein the central beam z. B. is considered as that beam, which lies in the centroid of the drying element 41 _k leaving beam cross-section S. As edge beam in this sense, the beam path from the beam center to the section end is in the case of a sharp-edged beam profile, and in the case of a softer waste, the beam from the beam center to the 50% value consider. As a beam center, the center of the beam width b _B at the height of the beam exit can be viewed in the axial direction. Due to the divergence of the jet S, a finer graduation in the influencing of the moisture profile is possible, in particular in connection with a variation in the activation pattern and / or in the operating pressure described in greater detail below.

For the execution of the drying element 41 _k as a blowing element 41 _k , the beam angle α given here refers to a presence at a distance corresponding to the normal distance for example one between 1 and 6 bar, preferably between 2 and 5 bar, in particular one at 3.0 bar above ambient pressure specified operating pressure.

In the following embodiments, the apparatus and method for a extending in the direction of the printing width of the profile of the damping fluid conduction setting and / or change in terms of the preferred embodiment of the blowing elements 41 _k formed drying elements 41 _k or beam sources 41 _k set forth, wherein individual or parent principles - provided that the respective teaching is not specifically directed _k to the version with the blowing members 41 _k formed drying elements 41 - to generalize to other embodiments and individually with respect to the activation and / or intensity Adjustable-in other embodiments drying elements 41 _k, z. B. on the execution of electromagnetic radiation sources 41 _k apply.

In order to form the effective sections a _i forming the individually influenceable axial sections a _j in the axial direction of the printing cylinder and / or the dampening and / or inking unit rollers of the printing unit 11; 21 considers the number of I drying elements 41 _k , in particular blowing elements 41 _k , arranged side by side, for example on a one- or multi-part traverse 42, which z. B. on both sides - possibly not described in detail coupling agent - in each one or more parts Side frames 43; 44 of the printing unit 11; 21 or printing unit 03 is stored.

To the inking and / or dampening unit 17, 18; 17; 18 to be able to withdraw dampening solution in sections, the group of drying elements 41 _k or the drying device 39 comprising them, in particular blowing device 39, with the lateral surface of any, color and / or dampening solution of the respective inking and / or dampening unit 17, 18; 17; 18 on its lateral surface leading rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 be arranged acting together. It is advantageous in the printing unit 11; 21 or printing unit 03 with the lateral surface of the respective color and / or dampening unit 17, 18; 17; 18 cooperating to its coloring and / or wetting, in particular as a forme cylinder 13; 19 trained printing cylinder 13; 19, or with a roller 23; 24; 26; 27; 33; 34; 36 of the respective inking and / or dampening unit 17, 18; 17; 18 arranged acting together.

In principle, a plurality of such drying devices 39 or groups of drying elements 41 _k - as far as the choice of and / or the position along a roller train - several points of the inking and / or dampening unit 17, 18; 17; 18 to the respective printing cylinder 13; 19 be provided.

Although the drying device 39 in a variant basically with a roller in the direct to the printing cylinder 13; 19 extending dampening solution flow lying roller 33; 34; 36 may be arranged to act together, it is in a preferred embodiment with a lying in the downstream ink stream, preferably of wet and inking rollers 27; 36 different roller 24; 26 arranged cooperatively.

For the here shown and advantageous case of a downstream of one of the inking rollers in two roller strands dividing roller train the drying device 39 may advantageously be arranged cooperatively with a roller 24, which is attributable to the not yet divided roller rod of the inking unit 17. This may then preferably be the roller 24 which forms nipples with the first rolls of at least two roll strands branching off and / or the printing unit cylinder 13 to be inked in the ink stream; 19 closest in roll compactor roller 24 of the still undivided roll train.

The drying device 39 may be arranged cooperating in a particularly advantageous embodiment with a roller 24, from which the ink downstream on the shortest possible fluid path via only two rollers 26; 27, z. B. a rubbing roller 26 and an applicator roller 27; 36, to be inked printing cylinder 13; 19 is to be transferred.

For one, several or all of the o. G. Embodiments and developments, it may be particularly advantageous if the drying device 39 having a "soft" surface and / or one of application rollers 27; 27 different roller 24; 33 is arranged to act together.

For one, several or all of the o. G. Embodiments and developments, it may be particularly advantageous if the drying device 39 with a - in contrast to a so-called. Reiter Rollze - lying in the ink stream roller 24; 26 of the compactor, d. H. one with at least one upstream and at least one downstream roll 24; 26 each a nip forming roller 24; 26, is arranged cooperatively

In an advantageous embodiment, one, several or all of the above embodiments and further developments of the drying device 39 comprises adjacent at least one of m number of color zones z _i corresponding number I of drying elements 41 _k, particularly blowing members 41 _k, that is, l ≥ n. It is advantageous in a Arrangement such that the number l = m or the number m of l> m Blowing elements 41 _k are arranged and designed such that the m when operating through these m blowing elements 41 _k side by side trained sections a _i with their effective width b _i perpendicular to their axial extent halved cutting plane each in 1: 1 assignment a zone width b _z of m Color zones z _i cut, preferably substantially or nearly, z. B. with at most a deviation of ± 20%, in particular at most ± 10% of the respective zone width b _z , with which the respective color zone z _i coincides perpendicular to its extension in the width bisecting cutting plane. In a particularly preferred embodiment, the beam centers of the blowing elements 41 are aligned with the _k, the respective color zones vertically bisecting z _i to its extension in the width of sectional planes.

However, it may in principle also be a different from the 1: 1 assignment division between the m inking zones zi and the number of given within the escape of the given by the sum of the inking zones zi effective width of the color source 31, z. B. the ink fountain 31, lying drying elements 41 _{k be} given.

The sum of the effective widths b _{j of} the axial or effective sections a _{i of} a drying device 39 that can be treated by the group of n drying elements 41 _k can, in an advantageous development, have a greater total effective width than the sum of the zone widths b _z of the same color and / or dampening unit 17, 18; 17; 18 associated with inking unit 17, which, for example, by a trituration in the inking and / or dampening unit 17, 18; 17, 18 widened color / dampening profile accounts. This may possibly be realized by a larger than the zone widths b _z larger effective widths b _j and / or by a relation to the number of inking zones zi larger number I of effective sections a _i . In an advantageous embodiment, at least one further drying element 41 _k (for example, 41 ₀ , 41 _i-1 in.) Is provided on the edge side in each case in an axial region extending beyond the alignment of the inking zones z _i Fig. 4 ) and / or an active section a _i . In addition thereto, a greater than the zone widths b _z greater effective widths b _j occur, which for example for the og case of a 1: 1 assignment of the m of I drying elements 41 _k to m inking zones z _i for the respective adjacent effective sections a _i ; a _{i + 1} leads to overlaps.

In a preferable embodiment, the drying elements 41 _{k k} formed as a flat jet nozzles 41st In a particularly preferred embodiment, they can be designed as a nozzle 41 _k in a so-called deflector or baffle plate design, in particular as a tongue or spoon nozzle, with a fluid jet S initially emerging from an opening covered by the drying element 41 _k and even before it leaves the drying element 41 _{k is} deflected in the desired direction or in the desired angular range via a guide or baffle element by an angle of at least 45 °, in particular by 70 ° to 80 ° from the previous direction. As a result, the beam S is widened in a defined manner and leaves, in particular as a flat jet, the drying elements 41 _k . In this case, the "exit" of the drying element 41 _k is the location at which the jet S leaves the guide or impact element in the direction of the surface F. In straight-beam design of a nozzle element 41 _k formed as a nozzle, the plane of the nozzle opening can be understood as an output.

In an advantageous embodiment of the blowing elements 41 _{j designed} as a nozzle, these are, as far as the jet axis A projected in a plane perpendicular to the rotation body axis, the surface F to be acted upon arranged at an identical angle .beta. The angle β is z. B. given as the angle of inclination of the projected into the plane perpendicular to the axis of rotation body plane beam axis A against the tangent at the point of impact. This is advantageously at an angle from the range of 30 ° to 65 °, in particular at 40 ° ± 50 °, wherein it is preferably directed in the beam direction directed against the present at the point of impact in the direction of rotation. The blowing elements 41 _j are preferably arranged and aligned in alignment with one another such that the beam axes A projected into the plane perpendicular to the rotation body axis lie on a same line I, z. B. effective impact line L lie.

Basically, irrespective of the specific design of the drying elements 41 _k and / or of the particle size zi related to the inking zones, but advantageously in conjunction with an above-mentioned embodiment as beam sources, in particular as blowing elements 41 _k , and / or in conjunction with a 1: 1 Division in at least the alignment of the color effective width of the color input by the color source 31 includes the wet-profile adjustment device control means 46, 47 _V ; 48, by which the number of I independently adjustable in terms of activation and / or intensity drying elements 41 _k in terms of activation, for example, the switching on and off of the individual drying element 41 _k and / or in view of the intensity of the connected by the Drying elements 41 _k each achievable effect out, z. B. on the setting of one of the set of supply lines of the group of drying elements 41 _{k on the} input side acted upon fluid pressure, and / or in view of the intensity of each of the drying elements 41 _k achievable effect out, for. B. on the individual positions of each individual drying elements 41 _{k on the} input side acted upon fluid pressure, is adjustable.

, t > 1, insbesondere t ≥ n, beispielsweise t ≥ 30) verbunden, durch welche die m Trocknungselemente 41_k und/oder die hierdurch behandelbaren Axialabschnitte a_j unabhängig voneinander hinsichtlich einer Aktivierung und/oder Intensität stell- bzw. variierbar sind. Das "Variieren" soll hierbei sowohl eine Ausführung umfassen, wobei die Trocknungselemente 41_k über jeweils zugeordnete binäre Schalt- und/oder Stellmittel 47_v zwischen einem Schaltzustand "An" und einem Schaltzustand "Aus" schaltbar ausgeführt sind, als auch eine Ausführung, wobei über die beiden Schaltzustände "An" und "Aus" hinaus dazwischen ein oder mehrere diskontinuierliche Schaltzustände oder ein dazwischen liegender kontinuierlicher Stellbereich vorgesehen sind bzw. ist. Die signaltechnische Verbindung kann durch eine oder mehrere entsprechende Signalleitungen, z. B. durch ein Bussystem oder durch mehrere einzelne Signalleitungen, gebildet sein.In this case, the control means comprise a control device 46, which may be formed by an electronic circuit, by a software program or by a combination of both and / or in a controller, for. B. in a machine control, a control center computer or a dedicated control computer, can be implemented. The control device 46 is signal-wise with one of the number m of drying elements 41 _k to be set corresponding number of switching and / or adjusting means 47 _v (v = 1, ..., t with t ∈

, t> 1, in particular t ≥ n, for example, t ≥ 30), by means of which the m drying elements 41 _k and / or the axial sections a _j treatable thereby can be set or varied independently of one another with respect to activation and / or intensity. In this case, the "varying" is intended to encompass both an embodiment, wherein the drying elements 41 _k are designed to be switchable via respective binary switching and / or adjusting means 47 _v between a switching state "on" and a switching state "off", as well as an embodiment, wherein over the two switching states "on" and "off" in addition to one or more discontinuous switching states or an intermediate continuous adjustment range is or is provided. The signaling connection can be replaced by one or more corresponding signal lines, z. B. be formed by a bus system or by a plurality of individual signal lines.

By the respective switching and / or adjusting means 47 _{v that} is the drying effect in the axial or effective section a _i resources, eg. B. the required for generating an electromagnetic radiation supply of electrical power or preferably a drying element 41 _k leaving the output volume flow of a gas fluid, optionally activated and / or variable in intensity.

The respective supply of the equipment, eg. B. with the electric power or preferably with the fluid flow, takes place between the switching and / or adjusting means 47 _V and the drying elements 41 _k , parallel over one of the number m of individually to be set drying elements 41 _k and / or axial sections a _j corresponding number of lines 61 _k . The switching and / or adjusting means 47 _v , z. B. switchable valves 47 _v , each with the associated drying elements 41 _k each structurally adjacent or summarized or, such as. In Fig. 3 shown, centrally adjacent to each other and / or in a common unit 58, z. B. a so-called. Valve island 58 with a common line 63 to the resource supply, a signal connection 64 to the controller 46 and a connected via the signal connection 64 to the control device 46 connection and / or control part 62 may be arranged. As a "unit" here is an aggregate of several functional components understood, which may possibly be dismantled, but up to the production or the release of required supply and / or mounting connections in the preassembled state as a whole in the system introduced and again from this remove is. The by the switching and / or adjusting means 47 _V to be set resources, eg. B. the electric power or preferably the fluid under pressure, can all via the switching and / or adjusting means 47 _V adjustable branches of a common, the resource providing source 49 ago, z. B. from a power unit or preferably from a pressure fluid storing and / or providing pressure fluid source 49, be supplied or.

In an advantageous embodiment, another switching and / or adjusting means 48, z. B. a between at least two and from an inactive state "zero" different active switching states switchable valve 48 may be provided in the common supply line 63, through which z. B. the totality of supply lines of the group of connected, advantageously all the same drying device 39 attributable drying elements 41 _k or these drying elements 41 _k individually associated switching and / or adjusting means 47 _{V present} in their at least the input side, the level P _{E of} the achievable beam power determining resource potential, z. B. for the preferred case of blowing elements 41 _{k of} the pressure level P _E , in particular of the individual switching and / or adjusting means 47 _V input side applied fluid pressure, is adjustable. This adjustable at the central switching and / or adjusting means 48 - for example in the control range up to the level provided by the source level P ₀ - level P _E correlates, for example, with a maximum value for a discrete steps or continuously by the individual downstream switching and / or adjusting means 47 _V to be set adjusting range or an actual value for the present in the active switching state "to" a binary switching and / or actuating means 47 _V beam power. In the event of a completely open or not provided missing switching and / or adjusting means 48 corresponding to the individual switching and / or actuating means 47 _V present input level P _E - up to possibly given by line resistance, here assumed negligible resistance-based line losses - the provided basic level P _E.

The switching and / or adjusting means 48 may in the case of the blowing elements 41 _k preferably as a single. B. between at least two mutually and "zero" different switching states switchable valve 48, advantageously as a continuous valve 48, in particular as a proportional valve 48 and / or servo valve 48 may be executed.

The switching and / or adjusting means 48 may also be provided as part of this, upstream as a separate component in the supply line for the above-mentioned case of the individual switching and / or adjusting means 47 _{V of} a group or all drying elements 41 _{k of} the drying device 39 comprehensive unit 58 63 arranged or structurally integrated in a source 49 forming or comprehensive unit.

A position of the switching and / or adjusting means 47 _V can, in particular remotely operated, via adjusting elements 66 of an operator interface, for example, one at the control or. Control console 51 provided operator interface. In this case, in a non-illustrated embodiment, a group 67 such, the switching and / or adjusting means 47 _V with respect to the placement assigned and / or assignable control elements 66 - comparable and possibly in addition to the inking zones z _i acting control elements 59 - one-piece pushbuttons or keys 66 or be provided as a pair of push-buttons or buttons on the serving table 52 for the purpose of matching printed products. In an alternative, another, for example, designed as a button or push button actuator 68 may be provided in the access handle area of the user interface, by the actuation of the or at least a portion of the color zone setting provided for adjusting elements 59 circuitry as adjusting elements 66 for setting the drying elements 41 _k and / or Axial sections 41 _k the switching and / or adjusting means 47 _V assigned. In another, z. In Fig. 11 and Fig. 12 In a schematically indicated embodiment, the adjusting elements 66 or the group 67 of adjusting elements 66 can be embodied as manipulatable fields in a display mask 69 which is set up for numerical and / or graphic visualization of the respective ink zone setting. In this case, the actuating elements 66 forming fields in the same mask as those of Farbzonenstellelemente or be displayed in another mask 69. The manipulation may be via control elements of or interacting with the fields of the screen masking device 57 and in the case of a touch-sensitive and / or touchscreenfähige execution of the screen 56, if necessary directly by interaction with appropriately provided screen areas or in mixed form by activating the concerned Axial section a _j representing field on the screen 56 and manipulation of the setting on the operating device 57 done.

Remote control means in this sense - in contrast to a single local sites - that the control elements 66 are centrally adjustable in the same control interface, and not only individually by each decentralized for each of the switching and / or adjusting means along the row Axial sections a _i provided mechanical or electrical control elements.

The control device 46 is at least adapted to be carried out by operating personnel on the control interface via adjusting elements 66 for one or more axial sections aj and / or drying elements 41 _k setting commands, eg. B. actuated at the actuators actuating pulses, inputs or changes in value, by implementing a control of the affected switching and / or adjusting means 47 _v in a defined manner.

In an example not belonging to the invention for the formation and arrangement of the independently adjustable axial sections a _j (see eg. Fig. 9 ) Are the embodiment of the drying elements 41 _{k, k} especially blowing elements 41, the relative arrangement of the drying elements 41 _k, particularly blowing elements 41 _k, to each other and to the surface F of the rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 and / or the present beam angle α formed such that several or all in the direction of printing width offset from one another arranged adjacent active or axial sections a _j in the
Connect substantially to each other, ie have no or at most an overlap of less than 20%, in particular less than 10% of the effective width bj together. This condition should be met for example at a preferred operating pressure and / or in a distance corresponding to the normal distance, the operating pressure in this case, for example, between 1 and 6 bar, preferably between 2 and 5 bar, in particular at 3.0 bar above ambient pressure. In the case that there is no sharp-edged beam profile in the axial direction, the above-mentioned definition - namely the length of the effective or axial section a _j in the axial direction between the two 50% final values - is applicable for the respective effective width b _j .

In accordance with the invention, for the formation and arrangement of the independently adjustable axial sections a _j (see, for example, FIG. Fig. 10 ) Are the embodiment of the drying elements 41 _{k, k} especially blowing elements 41, the relative arrangement of the drying elements 41 _k, particularly blowing elements 41 _k, to each other and to the surface F of the rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 and / or the present beam angle α is formed such that a plurality, preferably all offset in the direction of printing width to each other adjacent active or axial sections a _j in pairs significantly, ie at least 20%, in particular at least 30%, preferably 40% to 60% of its width b _j with an adjacent axial section a _j - z. B. calculated at least from at least one of the two ends of the axial section a _j ago - overlap. This condition should be met, for example, at a preferred operating pressure in a distance corresponding to the normal distance, wherein the operating pressure, for example, between 1 and 6 bar, preferably between 2 and 5 bar, in particular at 3.0 bar above ambient pressure. In the case that there is no sharp-edged beam profile in the axial direction, the definition mentioned above can also be used for the respective effective width b _j .

In an embodiment not shown and not belonging to the invention for the formation and arrangement of independently adjustable axial sections a _j are the execution of Drying elements 41 _{k, k} especially blowing elements 41, the relative arrangement of the drying elements 41 _k, particularly blowing elements 41 _k, to each other and to the surface F of the rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 and / or the present beam angle α formed and subjected to a resource that in a first operating situation, several or all offset in the direction of printing width arranged adjacent active or axial sections a _j when a first, z. B. lower of two different operating pressures are mutually spaced or substantially adjoin one another, ie no or at most an overlap of less than 20%, in particular less than 10% of the effective width b _j each other, and in a second operating situation when a second, z. B. higher of two different operating pressures in pairs significantly in the inventive manner, that overlap at least 20%, especially at least 30%, preferably 40% to 60% of their width b _j with an adjacent axial section a _j. This should be met for example at respective operating pressure in a distance corresponding to the normal distance, wherein the first and the second operating pressure, for example, in each case between 1 and 6 bar, preferably between 2 and 5 bar, with the proviso that the second operating pressure is greater than the first. Again, in the case that in the axial direction no sharp-edged beam profile is present for the respective effective width b _j above definition applicable.

In the inventive design and arrangement of the independently adjustable axial sections a _j or in the operating situation of the third embodiment and arrangement with significant overlap, it is possible during operation by activating a mutually different selection of one or more of I drying elements 41k either or at the same time one or more sections "2 I" treated simultaneously by two adjacent drying elements 41k and one or more sections "I" treated by only one drying element 41k and / or one or more untreated sections "-" on the effective width covered by the drying device 39 to produce and / or train. For illustration are in Fig. 11
For example, the drying elements 41 _k and 41 _{k + 1} activated or their switching and / or adjusting means in the switching state "on", while the drying elements 41 _k-1 (only hinted) and 41 _{k + 2 are} disabled or their switching - and / or adjusting means in the switching state "off",

In a first embodiment of the device with respect to the placement of the drying elements 41 _k - which can be related to all of the above to the arrangement and design of the axial sections a _j and / or to all the aforementioned embodiments and developments of the drying elements 41 _k - is the device set for adjusting and / or changing the axially extending dampening solution profile, the drying elements 41 _k and / or the associated switching and / or adjusting means 47 _s between - in particular only - two switching states, namely an active ("on") and an inactive ("Off") to operate switching state. For this purpose, each of the drying elements 41 _k and / or the switching and / or adjusting means 47 _{s associated} therewith can be acted upon by the control device 46 via the signal connection 64 with a signal representing the switching state "on" and a signal representing the switching state "off", wherein one These two signals can also be given by the "zero signal", ie the signal level or shape present at rest in the idle state.

For example, in view of the costs associated therewith, the switching and / or adjusting means 47 _{s are} preferred as between at least two switching states, namely between at least one passive state and at least one active state of the relevant drying element 41 _k switching state, switchable switching and / or adjusting means 47 _v, preferably as only between these two switching states "on" and "off" switchable switching and / or adjusting means 47 _V formed. They are z. B. as an electrical on / off switch or in particular as optional openable and closable fluid valves 47 _V executed by which present depending on the corresponding switching and / or adjusting means 47 _V , by the controller A via the control signal S _V assigned switching state, the supply of the working medium, z. B. with a radiation underlying electric power or preferably with a jet S underlying fluid flow, on or off. In this embodiment, the switching and / or adjusting means 47 _{V are} preferably designed as binary switchable between a switching state "on" and a switching state "off" and / or driven.

A setting of the drying elements 41 _k or the switching and / or adjusting means 47 _{s assigned to them} can optionally be provided in addition to an implemented actuating routine coupled to a zonal dampening solution measurement and / or to a color zone setting, for example via an operator interface og adjusting elements 66 and the controller 46 done manually by the operator. The switch concerned and / or adjusting means 47 are _v reacted in a defined manner by the operating personnel at the control interface for one or more axial sections aj and / or drying elements 41 _k made specifications or changes then by appropriate control. Thus, for example, one of the circuitry of the axial sections a _j associated adjusting elements 66, z. B. the k-th actuator 66 _{k are changed} with respect to its value representing the circuit state by the relevant actuator 66, for example, the relevant button 66 or the respective button or button pair 66 or the relevant field in the screen 69 and actuated accordingly / or modified. In the case of the first embodiment for the setting of the drying elements 41 _k , namely between only the two switching states "on" and "off", the switching by pressing a button on a real or virtual, generated as a field on the screen button 66 or by a change a value representing the intended switching state X _k in a specific drying element 41 _k relevant field 66 of a screen 69 done. In the case of binary only to be asked when placing a z. B. only two values X _k , z. B. X _k ∈ {0, 1}, comprehensive stock of values are selected, here representatively for other expressions the value 0 for an inactive and the value 1 is shown (see eg Fig. 11 ).

In an advantageous development, in which, for example, an above-mentioned central switching and / or adjusting means 48 is provided, in addition to the binary setting of the drying elements 41 _k and / or the switching and / or adjusting means 47 _{s associated} therewith, a setting of a level in the operating medium potential in FIG above sense, for example, be provided for all or at least more of the same supply line 63 supplied with equipment drying elements 41 _k or switching and / or adjusting means 47 _s pressure levels.

A setting of the plurality of drying elements 41 _k upstream central switching and / or adjusting means 48 may - optionally and in addition to an implemented, for example, to a zonal dampening and / or a Farbzoneneinstellung coupled control routine - on an above-mentioned operator interface by operating an actuating element 71st If necessary, the control device 46 is manually made by the operating personnel. Defaults or changes made by operating personnel on the operating interface for a variable representing the operating medium level and thus the respective blasting power in their maximum effect are then converted in a defined manner by corresponding actuation of the switching and / or actuating means 48. For example, to place a z. B. button or button pair 71 trained actuator 71 on the table or on the control panel 57 or a relevant field 71 in a separate or an og screen or display mask 54; Be provided and actuated, via which the height of the level by pressing a real or virtual button 71 and / or by entering or changing a level representing the value Z, z. B. a percentage of the maximum possible level, in a field 72, display and / or input field 72, the screen 54; 69 can be changed. (see eg Fig. 11 and Fig. 12 ).

In a second embodiment of the device with respect to the setting of the drying elements 41 _k - which can be related to all of the above to the arrangement and design of the axial sections a _j and / or to all the above-mentioned embodiments and developments of the drying elements 41 _k - is the device set for adjusting and / or changing the axially extending dampening medium profile, the effect related to a peripheral portion of the co-rotating body in an axial section, z. As related to a peripheral portion of the co-rotating body effective beam power, not only between the two limit switching states, z. Example, a maximum value corresponding state, which corresponds to the maximum provided for applying beam power, and an inactive state, resulting in a beam power zero at z. B. switched off drying element 41 _k represents, but in addition to be able to spend in one or more other discrete states or in states of an intermediate continuous adjustment range for the beam power. For this purpose, the drying elements 41 _k or the switching and / or adjusting means 47 _s associated therewith can be acted upon by corresponding signals S _V or signal sequences S _V representing these switching states.

The the axial portions associated for the removal of the fountain solution drying elements 41 _k or associated with these switching and / or adjusting means 47 _s are thus - in particular be actuated by operator control elements and a signal-technically connected with the adjusting elements controller -jeweils individually to the extent of their in time or in terms of area averaged interaction between an inactive operating state, an active operating state representing a maximum value and at least one active operating state occupying an intermediate value intervening therebetween.

The realization of the admission between the limit switching states "On" (= "Max") and "off" (= "zero") lying intermediate values for the above-mentioned surface-related beam power can basically in different ways - for example, by varying the size of the area-related beam power (eg, the area-related radiation power in the case of electromagnetic radiation or of the area-related mass flow for the case of a fluid flow S or by varying the proportion to be acted upon in a time unit or a peripheral section to be acted upon.

By the above-mentioned time averaging for the degree of exposure, a mean value of the action resulting from the averaging over time can thus be understood, for a given stationary operating state, this value being, in the case of a continuous and constant application, the value of the application. for example, the per unit time, z. B. per second, applied electromagnetic radiation or preferably applied amount of air, and in the case of a discontinuous, z. B. pulsed exposure to the averaging over a full cycle resulting average value of the action, for example, the applied in the cycle electromagnetic radiation or preferably the amount of air acted upon. For both the continuous and the discontinuous case, this value represents the "beam power" of the electromagnetic or the fluid jet present in the relevant operating state. In a possible alternative embodiment of different types, eg. B. mechanical action of a squeegee or acceptance device, this time-averaged value can be generalized understood in terms of a measure of the time-related impact as "acting". Parallel to this, the area averaging can be understood as a mean value of the action resulting from the averaging over a surface area treated by the drying element 41 _k for a specific stationary operating state, this value being the value of the application in the case of a continuous and constant application , For example, the per unit area, z. B. per m ² , applied electromagnetic radiation or preferably applied amount of air, and in the case of a discontinuous, z. B. pulsed loading corresponding to the averaging over the treated surface in a full cycle average value of the action, for example, applied to the surface treated in this cycle electromagnetic radiation or preferably applied amount of air corresponds. Both for the continuous and for the discontinuous case, the time-related and the area-related value for the degree of action with knowledge of the effective width b _j and relative speed can be converted into each other for the present case of a relative speed between dry element 41 _k and surface F to be treated.

In a first embodiment in which, for example, can find 47 _V use as a switching and / or adjusting means 47 _V og binary switching and / or adjusting means, the impingement takes place with one or more intermediate values for the beam power by variation of the to be acted fraction under consideration peripheral portion by means of timing of applying, ie by means of a pulsed, also known as pulsed referred beam S. at a peripheral portion of the co-operating body of rotation through the drying element 41 _k in the respective axial portion of a _j alternately in a first time interval, a beam S in the circuit state "on" and in a second time interval in the switching state "off" no beam S deployed, wherein the time intervals may correspond or deviate from each other. Depending on the ratio of the example adjustable intervals can be z. B. vary on the peripheral portion in the axial section a _j applied beam power.

In the control device 46 can this purpose a control logic "A", z. B. as electronic circuit "A" and / or as algorithm "A", be implemented by which the desired - set for example by the operator on the control interface - amount of applied for the affected axial section a _j beam power or this radiation power expressing averaged or effective switching state in a correspondingly clocked signal, in particular a corresponding clocked signal sequence S _V for applying the respective drying element 41 _k or the associated switching and / or adjusting means 47 _s processed. In the case of trained as blowing elements drying elements 41 _k flows, for example, in the operating in the switching state "on" interval with open switching and / or adjusting means 47 _s , z. B. valve 47 _v , the fluid flow S, while in the operating in the switching state "off" interval no fluid S flows out.

As a result of the control device 46, several or all of the drying elements 41 _{k are} fundamentally individual, ie fundamentally in the clock frequency and / or the phase components between "on" and "off" - different from each other and / or independently of each other, clocked between a "off" switching state. and a switching state "on" operated and / or operable. In this case, this timing means no on or off, as it occurs in a change from one to another setting for the effect to be achieved, but for a certain adjustment of the average effect to be achieved to achieve this - ie higher-frequency - in the on-off modulation. As a result of the one control device 46, several or all of the drying elements 41 _k in each of the active operating states are individually clocked between a switching state "off" and a switching state "on".

A clock frequency for the passage of a cycle between the change in the switching state "on" until the following change to the next switching state "on" can with the machine speed of the printing unit, ie directly or indirectly with the rotational frequency of one or more of the rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36, to be inked forme cylinder 13; 19, the printing unit 11; 21, z. B. with this rotary body 12; 13; 14; 19; 23; 24; 26; 27; 33; 34; 36 itself or with a rotationally coupled to this component or drive or with a mechanical or electronic master axis, be correlated. The clock frequency can be z. B. between 0 cycles per revolution of the forme cylinder and 100, or even 500 cycles per revolution be varied the form cylinder. Preferably, it is at least one cycle per revolution of one as a forme cylinder 13; 19 trained printing cylinder of the relevant printing unit. In an advantageous development, in particular for cycle numbers of z. B. less than 20 cycles per revolution of the forme cylinder, the respective number of cycles per revolution of the forme cylinder is not selected or set integer.

In any case, the clocked or pulsed on-off an active operating situation in the sense of a stationary effective switching state of the Is Is drying elements 41 _k understood and should not be confused with the switching on or off one or more drying elements 41 _k , as in the Change of one operating situation to another takes place. The pulsed or clocked on / off for a stationary active operating situation of the printing unit thus takes place with a stationary cycle length and / or frequency. For example, although this can be changed for setting purposes, it is again in an effective "stationary pulsed" switching state in stationary operation of the printing unit.

The phase components can in principle be symmetrical, i. H. 50%: be distributed 50%, but advantageously at least within a range between 30%: 70% and 70%: 30%, preferably even between 20%: 80% and 80%: 20%, based on the ratio of the phase lengths "An ":" To be variable "or varied.

In a second, instead of the first or optionally optionally or in combination with this intended or to be provided embodiment, the application is carried out with one or more intermediate values for the beam power by varying the strength of the output by the drying element 41 _k , to a surface unit of the applied surface F related beam power. On a peripheral portion of the cooperating rotating body is or is by the drying element 41 _k in the respective axial section a _j then, for example, in an operating situation, a beam S. with, for example, a first beam power - z. B. first radiant power to electromagnetic radiation or a fluid jet S with a first mass flow - and in a different mode of operation with respect to the first beam power z. B. higher energy beam power -. B. stronger electromagnetic radiation or a fluid jet with a larger mass flow - acted upon or acted upon. Depending on the set beam power also varies in the axial portion a _j total applied in the respective peripheral portion beam power.

For this purpose, in the case of the blowing members, for example, as a switching and / or adjusting means 47 _V a verbringbares in more than two discrete defined switching states of switching and / or adjusting means 47 _V, preferably a switching and / or adjusting means 47 _V with a continuous adjustment range , provided, which can be acted upon by the controller with corresponding signals S _V , in particular actuating signals S _V. In the case of the trained as blowing elements drying elements 41 _k z. B. as switching and / or adjusting means 47 _V a continuous valve 47 _v , in particular a proportional valve 47 _V provided. In the control device 46 can in this case a control logic "B", z. B. as electronic circuit "B" and / or algorithm "B", implemented by which the desired - set for example by the operator on the control interface - for the affected axial section A _j set switching state in the associated control signal S _V for acting on the relevant drying element 41 _k or the associated switching and / or adjusting means 47 _{s is} processed.

In an embodiment which is advantageous for both embodiments and in which, for example, an above-mentioned central switching and / or adjusting means 48 is provided, the drying elements 41 may additionally be provided, for example, clocked or clocked and / or varied or variable in thickness _k and / or the switching and / or adjusting means 47 _s assigned thereto a setting of a level in the operating medium potential in the above sense, for example setting of the drying elements supplied with operating means for all or at least several of the same supply line 63 41 _k or switching and / or adjusting means 47 _{s be provided on the} input side pressure levels P _E.

For both embodiments mentioned, setting of the drying elements 41 _k or of the switching and / or adjusting means 47 _{s assigned to them} - optionally optionally and in addition to an implemented control routine, for example coupled to a zonal dampening solution measurement and / or to a color zone setting - at one og operator interface also manually over here, for example, og adjusting elements 66 and the control device 46 by the operator. The switch concerned and / or adjusting means 47 are _v reacted in a defined manner by the operating personnel at the control interface for one or more axial sections aj and / or drying elements 41 _k made specifications or changes then by appropriate control. Thus, for example, one of the circuitry of the axial sections a _j associated adjusting elements 66, z. B. the k-th actuator 66 _{k are changed} with respect to its value representing the circuit state by the relevant actuator 66, for example, the relevant button 66 or the relevant pair of buttons 66 or the relevant field in the screen 69 and actuated correspondingly long and / or is modified in value. In the case of the second embodiment for setting the drying elements 41 _k , namely between more than the two switching states "on" and "off", the setting by a longer or by a corresponding multiple keystrokes on a real or virtual, generated as a field on the screen Button 66 or by a change of the intended switching state representing value Y _k in a specific drying element 41 _k relevant field 66 of a screen 69 done. In this more than merely binary case to be asked when placing a z. B. more than two values y _k comprehensive, more or less finely graded stock of values, z. B. in percentage steps or, for example, in 10% steps (Y _k ∈ {0%, 10%, 20% ... 100%}, are selected, wherein the selected representation is representative of different scale divisions and / or sizes (see eg Fig. 12 ).

In addition to or independent of the described possibility of influencing the dampening agent profile by the operator via a place on the relevant user interface and acting on the switching and / or adjusting means 47 _V , based on a zonewise measurement of dampening solution guide and / or a control measurement of the printing result Control circuit and / or a coupling of the setting in the axial sections a _j with a setting of inking zones z _i control and / or control process may be provided with appropriate control or regulation means.

LIST OF REFERENCE NUMBERS

01

Feeding device, sheet feeder

02

Substrate, substrate sheet

03

pressure unit

04

product display

05

-

06

gripper

07

Conveyor line, belt system, conveyor system

08

Conveyor line, conveyor system, gripper system

09

Conveyor line, belt system

10

-

11

printing unit

12

Printing cylinder, transfer cylinder

13

Printing cylinder, forme cylinder, rotary body

14

Printing cylinder, impression cylinder, transfer cylinder

15

blanket

16

bruise

17

Inking unit, lifting inking unit

18

dampening

19

Printing cylinder, forme cylinder, rotary body

20

-

21

printing unit

22

Color picking device

23

Roller, inking roller, Nacktwalze, rotary body

24

Roller, inking roller, ink transfer roller, rotary body

25

-

26

Roller, inking roller, friction roller, distribution cylinder, rotating body

27

Roller, inking roller, applicator roller, inking roller, rotary body

28

Roller, lifter roller

29

Roller, ink fountain roller, ductor roller

30

-

31

Color source, color box

32

Dampening solution feed device

33

Roller, dampening roller, rotary body

34

Roller, dampening roller, friction roller, distribution cylinder, rotation body

35

-

36

Roller, dampening roller, applicator roller, dampening roller, rotary body

37

Roller, wet dipping roller

38

Dampening solution source, dampening solution tray

39

Drying device, blowing device

40

-

41 _k

Drying element, blowing element, nozzle (with k = 0, 1, ..., I-1, I ∈

)

42

traverse

43

side frame

44

side frame

45

-

46

control

47 _v

Switching means (with v = 1, ..., t; I ∈

)

48

Switching means, valve, continuous valve, proportional valve, servo valve

49

Source, source of pressurized fluid

50

-

51

Helm, control room

52

tray table

53

Group (59)

54

display screen

55

-

56

screen

57

Operating device, control panel

58

Assembly, valve terminal

59

Control element, button, pair of buttons, field

60

-

61 _k

management

62

Connection and / or control part

63

management

64

signal connection

65

-

66

Control element, button, pair of buttons, field

67

Group (66)

68

actuator

69

display screen

70

-

71

switching element

72

Field, display and / or input field

A

beam axis

α

Angle, beam angle

α1

corner

α1

corner

β

corner
a _i axial sections

b _i

Width, effective width (z _i )

E _N

Plane, normal plane

F

surface

I

Intensity, number

L

Line, effective impact line

P ₀

ground level

P _E

Level, pressure level, input side

S _V

Signal, signal sequence, actuating signal

z _i

Inking zone

Claims (16)

1. A device for adjusting and/or changing a damping medium profile, which extends in the direction of a printing width, in a printing unit (11, 21) comprising at least one printing unit cylinder (13, 19), at least one inking unit (17) which inks the printing unit cylinder (13, 19), and at least one damping unit (18) which interacts with the printing unit cylinder (13, 19) and/or the inking unit (17), where a drying device (39) which extends over the printing width is provided with a number I (I ∈

   

   , I>1) of drying elements (41_k), the influence of which on a printing unit (11, 21) surface (F) to be treated allows moisture to be removed from a number of n (n ∈

   

   , n > 1) axial portions a_j (j = 1,..., n) that are offset relative to one another in the direction of the printing width and the extent of the influence of which with respect to the axial portion (a_j) and/or the operating state of which can be varied independently of one another, characterized in that the drying elements (41_k) are designed and arranged in the printing unit (11; 21) such that at least 20% of the width (b_j), when seen in the direction of the printing width, of multiple or all of the axial portions (a_j), which are designed as active portions (a_j) with an active width (b_j) of the drying elements (41_k) in the printing unit (11; 21), over the extension of said portions overlaps with an adjacent axial portion of the axial portions (a_j), which are axially offset relative to one another in the direction of the printing width.
2. The device according to claim 1, characterized in that a controller (46) and switching and/or adjusting means (47_v) which are connected to the controller for signaling purposes are provided, said controller and switching and/or adjusting means being used to operate multiple or all of the drying elements (41_k) during a stationary active operating state such that each of the drying elements is pulsed, i.e. individually clocked between an "off" switching state and an "on" switching state.
3. The device according to claim 1 or 2, characterized in that the drying elements (41_k) are designed and arranged in the printing unit (11; 21) such that 40% to 60% of the width (b_j), when seen in the direction of the printing width, of multiple or all of the axial portions (a_j), which are designed as active portions (a_j) with an active width (b_j) of the drying elements (41_k) in the printing unit (11; 21), over the extension of said portions overlaps with an adjacent axial portion of the axial portions (a_j), which are axially offset relative to one another in the direction of the printing width.
4. The device according to claim 1 or 2 or 3, characterized in that it is configured to operate the drying elements (41_k) and/or switching and/or adjusting means (47_s) respectively assigned to them between two switching states, namely an active ("on") and an inactive ("off") switching state and/or that the drying elements (41_k) are designed to be switchable between an "on" switching state and an "off' switching state via respectively assigned binary switching and/or adjusting means (47v).
5. The device according to claim 4, characterized in that a controller (46) is provided, via which by activation of a respective different selection from one another of one or more of the drying elements (41_k) by two adjacent drying elements (41_k) simultaneously processed sections ("21"), sections ("I") processed by only one drying element (41_k) and unprocessed sections ("-") can be produced or are formed on the active width covered by the drying device (39) and/or via which in an operation situation by activation of a plurality of the drying elements (41_k) at least one section (21) simultaneously processed by two adjacent drying elements (41_k) and at least one section ("I") processed by only one drying element (41_k) and one unprocessed section ("-") is formed on the active width covered by the drying device (39).
6. The device according to claim 2, 3, 4 or 5, characterized in that the control device (46) comprises a control logic ("A"; "B"), by means of which a specification performed by the adjusting elements (66) for an axial portion (a_j) can be converted or is converted to a signal for a corresponding setting of a switching and/or adjusting means (47_v) for operating means supplying the drying elements (41_k) or to a signal sequence for a clocked switching corresponding to the specification of a switching and/or adjusting means (47_v) between an "on" switching state and an "off" switching state.
7. The device according to claim 1, 2, 3, 4, 5 or 6, characterized in that multiple or all of the drying elements (41_k) assigned to the axial portions (a_j) for removing damping solution via adjusting elements (59, 68; 66) that can be actuated by operating personnel and a controller (46) connected to the adjusting elements (59, 68; 66) for signaling purposes are in each case individually variable in the strength of their effect in the relevant axial portion (a_j) related to a circumferential portion between an inactive operating state, an active operating state representing a maximum value and at least one active operating state taking up an intermediate discrete value or an intermediate value lying in between in a continuous adjusting range.
8. The device according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that the drying elements (41_k) are configured as blowing elements (41_k) for forming a divergent fluid stream (S) which in operation corresponds to a base width (b_s) extending in the axial direction of a maximum of 50% of the active width (b_i) of the relevant axial portion (a_j) present in the surface (F) in the area of the surface (F) to be dried and/or which opens in operation in a stream angle (α) of at least 40° from the output of the blowing element (41_k) to the ends on both sides of the axial portion (a_j) formed by the application, and/or that the drying element (41_k) is configured as a nozzle (41_k).
9. The device according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that the drying device (39) is arranged interacting with a lateral surface (F) of the printing unit cylinder (13, 19) or a roller (23; 24; 26; 27; 33; 34; 36) of the inking and/or damping unit (17, 18; 17; 18) in the printing unit (11; 21) and/or that the drying device (39) is arranged in the printing unit (11; 21) interacting with a roller (24; 26) assigned to the roller train of the inking unit (17) and/or forming a nip location to at least two adjacent rollers (24; 26) and/or a roller (24; 26) arranged upstream of an inking roller (27; 36) and/or a roller in the still undivided ink train of a roller train arranged dividing downstream and/or a roller (24; 26) interacting with a soft surface.
10. The device according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that a switching and/or adjusting means (48) is provided in a collective line (63) supplying a plurality of the drying elements (41_k) with operating means, by means of which the operating means potential present at least on the input side and determining the level of the attainable stream output can be set for the drying elements (41_k) collectively supplied thereby.
11. The device according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, characterized in that a clocking with a stationary cycle length and/or frequency is present for a stationary active operating situation of the printing unit.
12. A method for setting and/or changing a damping medium profile, which extends in the direction of a printing width, in a printing unit, wherein in operation from a printing unit (11; 21) excess damping solution is removed from several axial portions arranged offset to one another in the direction of the printing width by a drying device (39) with a plurality of drying elements (41_k) that can be adjusted independently from one another in their effect, characterized in that in at least one operating situation damping solution is removed from at least one axial portion (a_j), in that the axial portion (a_j) configured as an active drying element (41_k) overlaps on a length of at least 20% of its active width (b_j) with the active width (b_j-1; b_j+1) of an adjacent active axial portion (a_j-1; a_j+1) of the drying elements (41_k) configured as an axial portion (a_j-1; a_j+1) offset to one another in the direction of the printing width.
13. The method according to claim 12, characterized in that an individual adjustment of the mass for the influencing in the relevant axial portion (a_j) on the surface (F) to be processed on an operating state between an inactive operating state and an operating state with maximum effect is performed, in that the drying element (41_k) is discontinuously operated clocked between an "off' switching state and an "on" switching state.
14. The method according to claim 12 or 13, characterized in that at the same time a different or in a different operating situation the same or a different axial portion (a_j; a_j+1; a_j+2) configured as the active portion (a_j; a_j+1; a_j+2) of an active drying element (41_k) does not overlap or overlaps with less than 20% of its active width (b_j) with the active width (b_j-1; b_j+1) of an axial portion (a_j-1; a_j+1) configured as the active portion (a_j-1; a_j+1) of an adjacent active drying element (41_k).
15. The method according to claim 12, 13 or 14, characterized in that for adjusting and/or changing the profile an adjustment of one or more of the drying elements (41_k) occurs remotely actuated at adjusting elements (66) of an operating interface that can be adjusted by operating personnel.
16. A printing unit (11; 21) of a printing press with a device according to one or more of claims 1 to 11, characterized by the configuration of the printing unit (11; 21) as a collective printing unit (11; 21) with a transfer cylinder (12) which with respect to the ink flow interacts upstream with several form cylinders (13) and interacts downstream with a printing unit cylinder acting as an abutment to the transfer cylinder (12) and/or by the arrangement of the printing unit (11; 12) in a printing aggregate (03) of a printing press configured as a security printing press.

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