EP1932665A2 - Drive of a printing group - Google Patents

Abstract

A drive for a print group has forming and carrying cylinders (03,07) and a color/ moisture roller (12). The main cylinders (03,07) are driven independently of any other cylinder or roller and the drive for these (08,09) is enclosed from the outside.

Description

The invention relates to a drive of a printing unit according to the preamble of claim 1.

By the US 62 98 779 B1 is a drive of a printing unit known, wherein for the purpose of rotary drive, a drive motor via a transmission a plurality of distribution cylinders of an inking unit and a second drive motor via another gear drives a dampening drive cylinder. The gears are arranged between two frame walls.

The DE 44 30 693 A1 shows a printing unit with a color and a dampening unit, wherein the distribution cylinder of the ink cylinder can be driven either by means of a separate drive motor axially, or in one embodiment via a gear connection together by a drive motor. An axial stroke can be generated by linear motors on each of the distribution cylinders.

The DE 196 23 224 C1 discloses a drive of a printing press, wherein in one embodiment, the two associated printing cylinder and a friction cylinder of an inking unit are each driven by a motor via a reduction gear. The drives of the printing cylinder takes place without encapsulation of a pinion on a drive wheel. Other inking rollers either have their own individual drives or are mechanically connected to the forme cylinder.

By the EP 0 234 456 A2 discloses a printing unit, the impression cylinder is driven by its own independent drive motor via a gear. The forme cylinder is driven by a gear from the main drive. An anilox cylinder and an applicator roll of an inking unit are connected to each other via a gear and driven by a drive motor.

The U.S. 4,424,744 describes a flexographic printing unit, wherein a counter-pressure cylinder and an associated form cylinder are driven together by a drive motor via at least one transmission, which is arranged in a housing. The ink transfer roller is driven by a gear individually rotatory by its own drive motor.

By the US 22 82 655 is an axial drive of two iridescent cylinder disclosed, wherein the axial movement is generated in an outwardly closed gear from the rotational movement of the cylinder. The rotational movement takes place on the other end face of the cylinder in turn by a drive wheel on the forme cylinder forth on the cylinder.

The US 21 15 734 shows an axial and rotational drive of two iridescent cylinder, wherein the axial movement on one end face and the rotational movement on the other end side in each case via outwardly closed gear from the forme cylinder takes place on the cylinder.

In the DE 33 27 872 C2 an axial drive of two distribution cylinders is disclosed, wherein an axial movement for the two distribution cylinder generating gear is executed encapsulated.

The invention has for its object to provide a drive of a printing unit.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that a high Flexibility in the operation of the printing unit is given. At the same time, however, an unnecessarily high expenditure on mechanics, electronics, and drive technology is avoided. In a version with individually or in pairs driven printing cylinders and individually or in pairs driven rollers of a paint or dampening unit, z. B. Reibzylindern, the single or pairwise encapsulation offers significant advantages in terms of effort and space on the drive side. The creation and sealing of an extended oil space between side walls of the printing press is no longer necessary. If the drives of rotary and axial movement, for example, arranged on different sides of the machine, so the accessibility increases at the same time flat and space-saving design.

In comparison to an axial rotary drive of the cylinders, rollers, or distribution cylinders directly via a motor shaft, the drive via a gearbox on the one hand to the requirement of optimal speed ranges bill. This is particularly in the case of a paint or dampening unit with distribution cylinder in view of the "restless" and non-uniform load of great advantage.

A drive-technical separation of the rotational and axial movement allows in an embodiment of the invention on the one hand an oil-free and thus cost-effective and environmentally friendly design. On the other hand, it offers procedurally increased flexibility. For example, in a start-up phase of the printing machine, inking or moistening of the inking unit or dampening unit can be carried out without a traversing movement. During printing, the frequency of traversing is independent of a speed of the Reibzylinders or the production speed adjustable, z. B. to keep constant under changing operating conditions. Thus, an optimal ratio between lateral movement and peripheral speed is adjustable without the need for adjustable gear and an oil chamber would be required. Also, advantageously, the turning point of iridescent motion to the position of the rollers or cylinders in the circumferential direction be set and changed what z. B. in the case of cylinders with mounting channels advantages. The independence of the rotary drive from the drive of, in particular by a single drive motor driven form cylinder opens on the other hand, the possibility of varying the peripheral speeds between form cylinder and distribution cylinder, and high flexibility in setup operation (temporally independent washing, printing form change, pre-inking, blanket wash , etc.).

Indicates an assembly, eg. B. the inking unit, a plurality of driven rollers or more to be driven friction cylinder, so a drive motor for the movement of all the distribution of this assembly in the axial direction is advantageous. Unnecessary control technology and an unnecessarily high error potential are avoidable.

Particularly advantageous in terms of flexibility, efficiency, safety and effort is an embodiment, wherein the two printing cylinders of the printing unit at least one independent drive motor, the driven rollers, z. B. the distribution cylinder, the inking unit, the rollers to be driven or the / the distribution cylinder of the dampening unit (if available) have their own rotary drive motor per group via a separate encapsulated transmission. These latter modules then have z. B. each have their own common drive motor for the axial movement, wherein the drive z. B. via an adjustable crank stroke drive.

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

Fig. 1

eine schematische Darstellung einer vier Druckwerke aufweisenden Druckeinheit in Gummi-gegen-Gummi" Ausführung;

Fig. 2

eine schematische Darstellung einer vier Druckwerke aufweisenden Druckeinheit in der Ausführung einer "Satellitendruckeinheit";

Fig. 3

eine Seitenansicht für die Antriebe aus Fig. 1;

Fig. 4

eine Seitenansicht für die Antriebe aus Fig. 2;

Fig. 5

eine schematische Darstellung einer vier Druckwerke enthaltenden Druckeinheit mit Riementrieb;

Fig. 6

eine Schrägansicht eines ersten Ausführungsbeispiels für den Antrieb eines Farbwerkes am Beispiel des oberen rechten Druckwerkes aus Fig. 1;

Fig. 7

einen Teilschnitt durch den Antrieb gemäß Fig. 2;

Fig. 8

eine Schrägansicht eines ersten Ausführungsbeispiels für den Antrieb eines Farbwerkes am Beispiel des unteren rechten Druckwerkes aus Fig. 1;

Fig. 9

einen Teilschnitt durch den Antrieb gemäß Fig. 4;

Fig. 10

eine Schrägansicht eines ersten Ausführungsbeispiels für den Antrieb eines Feuchtwerkes am Beispiel des oberen rechten Druckwerkes aus Fig. 1;

Fig. 11

einen Teilschnitt durch den Antrieb gemäß Fig. 7;

Fig. 12

eine Schrägansicht eines ersten Ausführungsbeispiels für den Antrieb eines Feuchtwerkes am Beispiel des unteren rechten Druckwerkes aus Fig. 1;

Fig. 13

einen Teilschnitt durch den Antrieb gemäß Fig. 8;

Fig. 14

eine schematische Darstellung einer anderen Ausführungsform einer vier Druckwerke enthaltenden Druckeinheit mit Riementrieb;

Fig. 15

eine schematische Darstellung eines weiteren Ausführungsbeispiels für den axialen Antrieb;

Fig. 16

eine schematische Darstellung eines weiteren Ausführungsbeispiels für den axialen Antrieb;

Fig. 17

eine schematische Darstellung eines weiteren Ausführungsbeispiels für den axialen Antrieb;

Fig. 18

eine schematische Darstellung eines weiteren Ausführungsbeispiels für den axialen Antrieb;

Fig. 19

eine schematische Darstellung eines weiteren Ausführungsbeispiels für den axialen Antrieb;

Fig. 20

eine Prinzipskizze eines über Zugmittel angetriebenen Kurbeltriebes;

Fig. 21

eine Prinzipskizze einer über eine Kurvenscheibe axial angetriebenen Walze.

Show it:

Fig. 1

a schematic representation of a four printing units having printing unit in rubber-against-rubber "execution;

Fig. 2

a schematic representation of a four printing units having printing unit in the execution of a "satellite printing unit";

Fig. 3

a side view of the drives Fig. 1 ;

Fig. 4

a side view of the drives Fig. 2 ;

Fig. 5

a schematic representation of a printing unit containing four printing units with belt drive;

Fig. 6

an oblique view of a first embodiment of the drive of an inking unit on the example of the upper right printing unit Fig. 1 ;

Fig. 7

a partial section through the drive according to Fig. 2 ;

Fig. 8

an oblique view of a first embodiment of the drive of an inking unit on the example of the lower right printing unit Fig. 1 ;

Fig. 9

a partial section through the drive according to Fig. 4 ;

Fig. 10

an oblique view of a first embodiment of the drive of a dampening unit on the example of the upper right printing unit Fig. 1 ;

Fig. 11

a partial section through the drive according to Fig. 7 ;

Fig. 12

an oblique view of a first embodiment of the drive of a dampening unit on the example of the lower right printing unit Fig. 1 ;

Fig. 13

a partial section through the drive according to Fig. 8 ;

Fig. 14

a schematic representation of another embodiment of a printing unit containing four printing units with belt drive;

Fig. 15

a schematic representation of another embodiment for the axial drive;

Fig. 16

a schematic representation of another embodiment for the axial drive;

Fig. 17

a schematic representation of another embodiment for the axial drive;

Fig. 18

a schematic representation of another embodiment for the axial drive;

Fig. 19

a schematic representation of another embodiment for the axial drive;

Fig. 20

a schematic diagram of a traction means driven crank mechanism;

Fig. 21

a schematic diagram of a cam axially driven roller.

A printing press, in particular a rotary printing press, has at least one printing unit 01, by means of which ink from an inking unit 02 via at least one formed as a cylinder 03 rotational body 03, z. B. a forme cylinder 03, on a substrate 04, z. B. a printing material 04, short web 04, can be applied. In the present example, for an embodiment of a printing unit for double-sided rubber-to-rubber printing ( Fig. 1 ), the printing unit 01 is executed as an offset printing unit 01 for the wet offset and additionally has a dampening unit 06 and another designed as a cylinder 07 rotating body 07, a so-called. Transfer cylinder 07, on. The transfer cylinder 07 forms a pressure point with an abutment-forming impression cylinder. In the example of Fig. 1 the counter-pressure cylinder is designed as a transfer cylinder 07 of a second printing unit 01, wherein the two cooperating printing units 01 in this embodiment form a so-called double printing unit for the two-sided printing. The same parts are given the same reference numerals, as far as they are not necessary for differentiation. However, a difference in the spatial position may exist and is usually disregarded in the case of the award of the same reference numerals.

The also as a printing cylinder 03; 07 designated cylinder 03; 07 have in an advantageous embodiment, at least in pairs per printing unit 01 (example in Fig. 2 represented) on one of further printing units 01 independent drive motor 08. This can on one of the two printing cylinder 03; 07 drive directly or via a gear 09 (pinion, timing belt) and from there to the other, or parallel to both printing cylinder 03; 07. In this embodiment favors z. B. a gearless drive the oil-free drive or a closed, z. B. encapsulated transmission for only the two mutually associated printing cylinder 03; 07 the saving of an oil space between frame walls.

In an advantageous because even more flexible, and especially suitable for an oil-free drive embodiment, each of the printing cylinder 03; 07 own drive motor 08, which again axially z. B. via a transmission (exemplified on the upper printing unit) or laterally offset via a transmission (pinion, toothed belt) on the respective printing cylinder 03; 07 drives. In an advantageous embodiment of the drive motor 08 and the output of the transmission 09 is substantially coaxial, possibly even via an angle and / or offset compensating Clutch, on the cylinder 03; 07 or its pin driven. Thus, eliminates a cylinder drive wheel with pinion and any requirement for lubricant. The gear 09 is advantageous here as the rotational speed of the drive motor 08 stepped down gear, z. B. as a planetary gear 09, for example, designed as an auxiliary gear, formed.

As in Fig. 1 schematically illustrated for the upper two printing units 01, the inking units 02 each have a plurality of rollers 11; 12; 13; 14, of which in the figures, the application rollers 11, the transfer roller 13, and the distribution cylinders 12 and 14 are named. The transport of the ink from a supply system or a supply to the distribution cylinder 14 can take place in different ways.

The two distribution cylinders 12; 14 of the inking unit 02 rotate body 12; 14, which are rotatable about their longitudinal axis, but are mounted movably in the axial direction relative to the cooperating rollers. In the embodiment, the distribution cylinders 12; 14 via a gear 16 preferably together by means of a drive from the printing cylinder 03; 07 independent, common drive motor 17 rotationally driven. If necessary, they can also be driven in rotation individually via a respective gear 16 and a separate drive motor 17. From another by the drive of the printing cylinder 03; 07 independent drive means 18, z. B. a drive motor 18 ( Fig. 3 ) They are about another gear 19, z. B. via a crank mechanism 19, preferably together in the axial direction of the distribution cylinder 12; 14 moves, ie they exert an iridescent movement about a, preferably adjustable, stroke of an amplitude A. Are several distribution cylinders 12; 14 together via a gear 19 axially driven, so in an advantageous embodiment phase and / or stroke of the traversing movement of each individual jointly axially driven distribution cylinder 12; 14 independently adjustable. The axial drives are in Fig. 1 not shown. Reference numerals have been given only for the "right half" of the printing unit, since the left side corresponds to the right side mirror-inverted.

It may instead of or in addition to the friction cylinders 12; 14 also other rollers 11; 13; etc. of the inking unit 02 individually or jointly rotationally driven by a gear 16.

Also, the dampening unit 06 has in the present embodiment, the upper printing units 01 a plurality of rollers 20; 21; 22; 25 at least one applicator roller 20, two distribution cylinders 21; 22 and a transfer roller 25. Again, for example, the distribution cylinder 21; 22 via a gear 23 by means of a common drive motor 24 rotationally and via a transmission 26 (FIG. Fig. 3 ) by means of a common drive means 27, for. B. a drive motor 27, movable in the axial direction. Instead of or in addition to the friction cylinders 21; 22 also other rollers 20; 25; etc. of the dampening unit 06 individually or jointly rotationally driven by a gear 26.

In Fig. 2 an embodiment of an embodiment of the printing unit is shown as a satellite printing unit. The transfer cylinder 07 of the printing unit 01 forms a pressure point with a rotating body 28 designed as a satellite cylinder 28. The satellite cylinder 28 is again driven by a separate drive motor 29 via a gear 31 individually rotatory. In a non-illustrated embodiment, the satellite printing unit has two such satellite cylinder 28, which are individually, or else jointly driven by a common drive motor 29 via the gear 31. The axial drives are in Fig. 2 not shown.

Exemplary is in Fig. 2 also the pairwise drive of the printing cylinder 03; 07 shown on a drive wheel of the forme cylinder 03 driving pinion as part of the transmission 09. From the drive wheel of the forme cylinder 03 can then be driven off to a drive wheel of the transfer cylinder 07. This can by means of gear connection as part of, z. B. encapsulated, gear 09 or via belts. The drive However, can also on the transfer cylinder 07 and from there on the forme cylinder 03, or coaxially on one of the cylinder 03; 07 done.

In the Fig. 1 and 2 On the basis of the upper printing units 01 described embodiment is to be transferred to the lower printing units 01 and vice versa. Exemplary are in Fig. 1 and 2 in the lower printing units 01, however, ink 02 and dampeners 06 each having only one distribution cylinder 12; 21 shown. These are in an advantageous embodiment in each case by means of the drive motor 17; 24 via the gear 16; 23 rotatory, and by means of the drive motor 18; 27 ( Fig. 3 ) via the transmission 19; 26 driven in the axial direction.

The individual or pairwise drives from the FIGS. 1 and 2 (or 3 and 4 below) for "rubber-to-rubber" printing units and satellite printing units are mutually transferable. In particular, a configuration of the satellite printing unit is also off Fig. 2 or 4 of advantage, all pressure cylinder 03; 07 of the pairs and the impression cylinder 28 has its own, in particular axially on the cylinder 03; 07; 28 via a gear 09; 31 driving drive motor 08; 29, and z. B. the distribution cylinder 12; 14 are driven by a common drive motor 17 via a self-contained to the outside gear 16.

Fig. 3 and 4 put the in Fig. 1 and 2 shown embodiments in a vertical section, but with the representation of the rollers 11, 13 was omitted. Likewise, the dampening units 06 (if available) are not visible in this illustration. For the dampening 06, however, the corresponding to the inking units 02 is applicable. For this reason, the reference numerals for the distribution cylinders 21; 22, for the gear 23; 26 and the drive motors 24; 27 in Fig. 3 and 4 put in parenthesis to the reference numerals of the inking units 02.

In Fig. 3 have two rollers 12; 14, here the distribution cylinder 12; 14, the upper inking unit 02 on the common drive motor 17. The transmission 16, z. B. a gear train 16 or a traction mechanism 16, is completed completed in this embodiment against its environment. For this purpose, this is only the two friction cylinders 12; Assigned 14 gear 16 arranged in a only this gear 16 associated housing 32. This housing 32 may, for example, have an open side, which together with a side frame 33 forms a closed, encapsulated space. The exemplary only a driven roller 11; 12; 13; 14, z. B. a distribution cylinder 12 having lower inking unit 02 also has only this roller 11; 12; 13; 14, z. B to the one distribution cylinder 12, associated with housing 32, which together with the side frame 33 forms a gear 16, encapsulated space 37.

The drive motor 18 and the gear 19 for the axial movement are arranged for example on another side of the machine.

The printing cylinder 03; 07 all have their own drive motor 08 and in this embodiment only the respective gear 09 receiving housing 34.

In the embodiment according to Fig. 4 points in contrast to Fig. 3 the printing unit on or the satellite cylinder 28, which or which is driven by its own or a common drive motor 29 via the gear 31 or be. Also, this or this is associated with a separate housing 36 in this embodiment, which receives the transmission 31 and encapsulated to the outside.

The two printing cylinders 03; 07 have in each case in pairs the common drive motor 08 and the respective gear 09 receiving housing 34. However, as stated above, the single drive is also off Fig. 3 on the printing cylinder 03; 07 of the Fig. 4 apply.

Based Fig. 4 an embodiment for the drive of a printing unit was shown in the lower part, which rotatably driven by the drive motor 17 via the encapsulated gear 16, provided with wells in the surface roller 41, z. B. grid or anilox roller 41. The anilox roller 41 gives the color z. B. to one or two applicator rollers 11 (not shown) from. It does not perform any axial, iridescent movement.

The gear 09; 16; 23; 31 are thus as individually encapsulated gear 09; 16; 23; 31 executed, which several cylinders 03, 07; 28 or rollers 12, 14; 21, 22 of a same assembly or a single cylinder 03, 07, 28 or a single roller 12, 14; 21, 22; 41 are assigned. As an assembly here z. B. the pair of printing cylinders 03; 07, the rollers 11; 12; 13; 14; 41, in particular the distribution cylinder 12; 14 of the inking unit 02, and the rollers 20; 21; 22; 25, in particular the distribution cylinder 21; 22 of the dampening system 06 to understand.

The gear 09; 16; 23; 31 are through the respective housing 32; 34; 36 in a closed, spatially confined space 37; 38; 39 arranged, in which lubricant such. B. oil may be present without this from the room 37; 38; 39 can escape and without the need for a multi-walled side frame.

Particularly advantageous, especially with a single drive of a roller 11; 12; 13; 14; 20; 21; 22; 25; 41, a friction cylinder 12; 14; 21; 22, a printing cylinder 03; 07 or a satellite cylinder 28, is the arrangement of a drive motor 08; 17; 24; 29 with an attached or flanged on the drive motor and individually encapsulated gear 09; 16; 23; 31, such as a sealed recirculating or reduction gearbox.

In an advantageous embodiment, all gear 09; 16; 23; 31 or at least the transmission of the color 02 and / or dampening 06 as a reduction gear 16; 23 executed. The Transmission 16; 23 for the pairwise drive of two distribution cylinders 12, 14; 21, 22 are preferably formed so that the two distribution cylinders 12, 14; 21, 22 have the same direction of rotation, ie when trained as a gear train between the drive wheels of the two distribution cylinders 12, 14; 21, 22 an intermediate wheel is arranged. The drive by means of the drive motor 17; 24 can then take place on one of the drive wheels or on the intermediate wheel. The gear 09; 16; 23; 31 can also be a traction mechanism, z. B. a belt drive, in particular a toothed belt, or in an advantageous embodiment, one or more of the gear 09; 16; 23; 31 be designed as a traction mechanism with traction means, in particular with toothed belt. For example, a transmission 09; 16; 23; 31, z. B. for driving one or more of the distribution cylinders 12, 14; 21, 22, be designed as a belt drive with toothed belt (see below).

In an advantageous embodiment, the transmission 16; 23 of the iridescent distribution cylinder 12; 14; 21; 22 formed so that the rotary drive motor 17; 24 can be arranged fixed to the frame. This is for example via a straight toothing or by an o. G. Belt drive with an axially movable drive wheel or a wide drive wheel possible, on which the belt, z. B. a toothed belt, upon movement of the distribution cylinder 12; 14; 21; 22 can spiral.

The axial drive or its axial movement on the distribution cylinder 12; 14; 21; 22 transmissive or transforming gear 19; 26 is not in a lubricant or oil chamber in an advantageous embodiment. If a lubricant is required, the gear 19; 26 at least as an outwardly closed, encapsulated transmission 19; 26 executed, which only that of this transmission 19; 26 driving drive motor 18; 27 is assigned. In Fig. 4 is exemplified for this purpose, a housing 42 shown by dashed lines. Also, one or more distribution cylinders 12, 14; 21, 22 axially driving gear 19; 26 may have a traction mechanism, in particular a toothed belt, or be designed as such.

In the case of the axial drive by means of the drive motor 18; 27 is the gear 19 which converts the rotary motion into an axial stroke; 26 outside a bale of the distribution cylinder 12; 14; 21; 22, but not in a vast common oil or lubricant space together with gears other assemblies such. B. an adjacent paint or dampening 02; 06 or a printing cylinder 03; 07, arranged. The drive motor 18; 27 itself, however, can be a specially encapsulated, not designated and in Fig. 3 or 4 only shown as a circle gear, z. B. have a reduction and / or an angular gear. The transforming and / or reducing gear 19; In this embodiment, for example, 26 is embodied as a crank mechanism having an eccentric, as a stop running in a curved groove or in another way. This can then all together axially driven distribution cylinder 12; 14; 21; 22 each individual, possibly individually encapsulated, be associated with a rotary in an axial movement transforming gear, which (as in Fig. 20 exemplified) are driven together via a traction means or a shaft.

In a development of the axial drive is not by means of the drive motor 18; 27 running drive means 18; 27 but z. B. by means of a pressure medium acted upon piston or magnetic force. In this case, z. B. a coupling the transmitting or transforming gear 19; 26 dar. These drive variants are, for example, together with the individually encapsulated rotary drive advantage.

The variants shown in the embodiments for the individual or paired rotary drives and the associated gear 09; 16; 23; 31 and the individual or pairwise axial drives and their associated gear 19; 26 are in the "top" and "bottom" illustrated printing 01 of the FIGS. 1 to 4 each shown by way of example for the purpose of a rational representation. In particular, a printing unit may have four printing units 01, all of which have an inking unit 02 each having two Friction cylinders 12; 14 and a dampening unit 06 each having a distribution cylinder 21. It can also all inking units 02 instead of the driven distribution cylinder 12; 14 have the driven anilox roller 41. Also for the combination of the drives of the cylinder 03; 07; 28 with those of the inking or dampening 02; 06 are the versions of the FIGS. 1 and 3 according to the explanations FIG. 2 and 4 to transfer and vice versa. So z. B. all cylinders 03; 07; (28) and all rollers (11) to be driven; 12; (13); 14; (20); 21; 22; (25); 41, depending on the design, a separate rotary drive motor 08; 17; 24; (29) via a respective individually encapsulated gear 09; 16; 23; (31). The different variants and above-mentioned variants for the axial drive are additionally mutually applicable to the various printing units 01.

Thus, for example, the printing unit having four printing units 01, the printing cylinder 03; 07 and, if present, the satellite cylinder 28 each by means of its own drive motor 08; 29 via its own encapsulated gear 09; 31 is rotationally driven, while at least the inking unit 02 (and possibly also the dampening unit 06) two distribution cylinders 12; 14; 21; 22, which in pairs by means of a common drive means 17; 24 via an enclosed gear 16; 23 rotatory, and in pairs by means of a common drive means 18; 27 via a transmission 19; 26 is axially driven. In a modification, all cylinders 03; 07; 28 and all distribution cylinders 12; 14; 21; 22 of the inking unit 02 and possibly dampening unit 06 each by its own drive motor 08; 17; 24; 29 rotationally via their own, completed gear 09; 16; 23; 31 driven. Advantageously, a coaxial drive from the gear 09; 16; 23; 31 on the cylinder 03; 07; 28 and possibly on the distribution cylinder 12; 14; 21; 22nd

For a printing unit, a same embodiment is preferably selected for the configuration of all the printing units 01 forming the printing unit. The choice of execution depends on the degree of flexibility desired, the cost and the choice of the color 02 or

Dampening unit 06 (one or two distribution cylinders 12, 14, 21, 22, short inking unit with anilox roller 41, etc.).

The drive motors mentioned for the rotary drives 08; 17; 24; 29 are advantageously designed so that they also serve for the drive during production. Thus, without the need for auxiliary drives, the driven units can be used both in a set-up or maintenance operation, as well as during production by these drive motors 08; 17; 24; 29 are driven. At least the drive motors 08; 29 of the printing cylinder 03; 07; 28 are preferably as with respect to their angular position controlled drive motors 08; 29 executed. Are the drive motors 17; 24 of the inking or dampening unit 02; 06 are not regulated with respect to their angular position, so they are advantageously carried out adjustable at least in terms of their speed. The same applies to drive motors 18; 27 of the axial movement.

In the event that on the cylinder 03; 07 or rollers 11; 12; 13; 14; 20; 21; 22; 25 is coaxially driven for the rotary drive, the arrangement of as a planetary gear 09; 16; 23; 31 executed reduction gear 09; 16; 23; 31 of advantage.

In the following Fig. 5 to 21 are detailed embodiments of the drive of the printing units 01, in particular the inking and dampening 02; 06 given. The above-mentioned embodiments for driving the printing cylinder 03; 07; 28 and to the gears 09; 16; 23; 31 and the enclosures shall be applied accordingly. Also, a drive of a dampening unit 06 may be driven as set forth above while the inking unit 02 may be configured as set forth below and vice versa.

The printing cylinder 03; 07 have in an advantageous embodiment, at least in pairs per printing unit 01 (shown by way of example on the lower double printing unit) on a drive motor 08 independent of other printing units 01. This one can be in the kind of how to Fig. 1 be descriptively designed. In more flexible and suitable for an oil-free drive training can, as to Fig. 1 described, each of the printing cylinder 03; 07 have their own drive motor 08.

As in Fig. 1 , have the inking 02 in Fig. 5 in each case the application rollers 11, the transfer roller 13 and the distribution cylinders 12 and 14.

The two distribution cylinders 12; 14 of the inking unit 02 rotate body 12; 14, which are rotatable about their longitudinal axis, but are mounted in the axial direction movable relative to a side frame 33. They are driven in rotation by means of a gear 16 designed as a transmission 16 via a traction means 43 preferably together by means of the independent of the drive of the printing cylinder, common drive motor 17. Possibly. They can also be driven individually via a respective traction means 43. From the other, independent from the drive of the printing cylinder actuator drive means 18, z. B. the drive motor 18, they are via the transmission 19, z. B. via a crank mechanism 19 preferably together in the axial direction of the distribution cylinder 12; 14 moves, ie they exert an iridescent movement about a, preferably adjustable, stroke of an amplitude A.
For their rotary drive, the distribution cylinders 12; 14 ( Fig. 6 and 7 ) frontally each with a drive wheel 44; 46, z. B. a pulley 44; 46, torsionally rigid and coaxially connected, which cooperate with the traction means 43. The traction means 43, z. B. formed as a toothed belt 43 or V-belt, is driven by a connected to a shaft of the drive motor 17 drive wheel 47. It rotates in the embodiment, the drive of both distribution cylinders 12; 14 in the same direction of rotation and thus forms a closed, not crossed loop.

In a first embodiment for the drive of the inking unit 02 ( Fig. 6 . 7 ) is the pulley 44; Although in the circumferential direction of the Reibzylinders 12; 14 at least in one direction of rotation as a driver connection and coaxial with the longitudinal axis with this connected, but in the axial direction relative to the distribution cylinder 12; 14 arranged movable. In the present example, the driver connection is realized such that in the pulley 44; 46 in an area outside its center at least one in the axial direction of the distribution cylinder 12; 14 extending opening 48, z. B. at least one bore 48, which, with one with the distribution cylinder 12; 14 rotatably connected, corresponding pin 49 cooperates. The driver connection can also in reverse or otherwise circumferentially effective stops 48; 49 on the distribution cylinder 12; 14 and the drive wheel 44; 46, which prevents twisting at least in one direction of rotation, but allows an axial relative movement. To reduce frictional forces, especially since the stops 48; 49 transmit the driving force, between the effective surfaces is a friction-reduced bearing 51 (FIG. Fig. 7 ), in particular a z. B. arranged as a needle bearing 51 running linear bearing 51.

The thus executed drive allows a common rotary drive of the distribution cylinder 12; 14 via the common traction means 43 with simultaneous traversing the two distribution cylinders 12; 14. The traction means 43 must therefore not follow the iridescent motion, which in particular in the case of two antiphase iridescent friction cylinders 12; 14 would not be possible or only with considerable losses in the accuracy and in the life of the components involved.

The drive for the axial movement of the drive motor 18 takes place in such a way that an eccentric 52, and an eccentric bushing 52, on one of the drive motor 18 z. B. via a bevel gear driven shaft 53 acts as a crank, which transmits its eccentric movement to the eccentric bush 52 comprehensive first coupling 54 as an oscillating linear motion. The free end of the first coupling 54 is pivotally connected to a lever arm 56, which in turn is non-rotatably arranged on a shaft 57 pivotable about a frame-fixed axis. With this shaft 57 are one of the number of the moving cylinder 12 to be moved; 14 corresponding number of lever arms 58; 59 rotationally connected, which in turn hinged to a second coupling 61; 62 are connected. The free end of the second coupling 61; 62 is via a coupling 63; 64 with the respective distribution cylinder 12; 14 connected such that a relative movement in the circumferential direction of the Reibzylinders 12; 14 possible, a relative movement of the coupling 61; 62 and the friction cylinder 12; 14 is prevented in the axial direction, however.

Both the phases of the movements of the two distribution cylinders 12; 14 to each other and the amplitude A is adjustable in the selected design in a simple manner and yet robust and reproducible. A first adjustment allows the arrangement of a second eccentric 66 between coupling 54 and shaft 53, wherein by relative rotation and subsequent fixing of the two eccentric 52; 66 the stroke is adjustable. Also by the length of the lever arms 58; 59, the amplitude A of the stroke can be selected individually and relative to each other. The phase of the movements to each other by the relative position of the lever arms 58; 59 in the circumferential direction of the shaft 57 to each other determinable.

Thus, with the greatest possible degrees of freedom, a simple and robust drive is given, which is an individual, and from the printing cylinder 03; 07 independent rotational speed and an independent stroke frequency and amplitude A granted.

In a second embodiment for the drive of the inking unit 02 ( Fig. 8 . 9 ) is the pulley 44; 46 designed drive wheel 44; 46 rotationally fixed and in the axial direction of the respective distribution cylinder 12; 14 firmly connected with this. The drive wheel 44; 46, however, has a width b44; b46 its acting together with the traction means 43 effective surface 67, which at least the sum of a width b43 of the traction means and a maximum amplitude A of an axial stroke of the distribution cylinder 12; 14 corresponds. The amplitude A is in Fig. 9 by dashed lines for one end of the distribution cylinder 12; 14 for the case that the current position corresponds to a middle position. Likewise, the various layers for the drive wheel 44; 46 the coupling 61, etc. represented by dashed lines, but was omitted for reasons of clarity on this.

The drive of the distribution cylinder 12; 14 corresponds in principle to the drive shown in the first example and is not further described here.

Does the distribution cylinder 12; 14 an oscillating movement, while it is rotationally driven by means of the drive motor 17, the traction means 43 retains approximately its position relative to a side frame, but moves with respect to the drive wheel 44; 46 in the direction of its axis of rotation from one side to the other. It describes z. B. on the active surface 67 of the drive wheel on a sine function "compressed", and alternately down or upwardly extending helix.

The by the in Fig. 5 to 9 stated drives the inking unit 02, possibly in conjunction with the above-indicated drive of the cylinder pair 03; 07 advantages are largely applicable to the drive of the dampening system 06 in the case of a wet offset. In particular, resulting in existing dampening unit 06 further advantages in terms of flexibility in the interaction between inking and dampening 02; 06 although the axially movable friction cylinder 43 (or more friction cylinder 43 as a group as in the preceding examples) from the drive of the printing cylinder 03; 07 independent drive motor 44 for the rotary drive, and the drive of the printing cylinder 03; 07 independent drive means 27, z. B. the drive motor 27, for the generation of the lateral movement. Of particular advantage with regard to the optimal translation on the one hand and the possibility of an oil-free drive and / or simultaneous drive multiple iridescent sliding cylinder 21; 22 on the other side, also finds the drive via a traction means 68, z. As a timing belt 68 or V-belt, application.

Since both the versions of the rotary drive and to generate the overlap axial movement in part with the running for the inking unit 02 examples, will be discussed below only the differences. For the facts which correspond to those of the inking unit 02, reference is made to the above.

In the first embodiment for the drive of the dampening unit 06 ( 10, 11 ) corresponds to the rotary drive of the distribution cylinder 21; 22 on the traction means 68 in many areas that of the embodiment according to Fig. 6 , The drive wheel 44 (the same reference numeral as executed in the same manner) and the distribution cylinder 21; 22 are also movable in the axial direction to each other here, in the circumferential direction, however, rigidly connected. In the present embodiment, the dampening unit 06 only has a distribution cylinder 21, so that the belt 68 designed as a traction mechanism 68 drives only the drive wheel 44 of a friction cylinder 21. Are more than the one distribution cylinder 21; To drive 22 rotationally, that's too Fig. 6 and 7 apply accordingly.

The drive in the axial direction can be simplified in the presence of only one driven to be driven cylinder 21, by, as in Fig. 11 illustrated, the first coupling 54 is connected from the preceding embodiments directly hinged to the coupling 63 of the distributor cylinder 21.

A second embodiment of the rotary drive of the dampening unit 06 ( FIGS. 12 and 13 ) corresponds to the principle of the second embodiment ( Fig. 8 and 9 ) For the inking unit 02. Again, the drive wheel 44 has a width b44, which at least the width b68 of the traction means 68 plus a maximum amplitude A of the stroke for the distribution cylinder 21, not shown; 22 corresponds.

In this embodiment, the dampening unit 06 also has only one distribution cylinder 21. In the case of a plurality of distribution cylinders 21; 22 that applies to 10 and 11 executed accordingly. The drive for the generation of the stroke corresponds to that of the first embodiment of the dampening 06.

In Fig. 14 is the drive of the inking and dampening 02; 06 shown in the executed as a satellite printing unit printing unit. It has at least one further cylinder 28, the impression cylinder 28 designed as a satellite cylinder 28, which is associated with at least two printing units 01. The printing cylinder 03; 07 and the satellite cylinder 28 are each driven by a gear 09 individually from the drive motor 08 here. The gear 09 are again shown here only schematically and can be an axially between the drive motor 08 and cylinder 03; 07; 28 arranged reduction z. B. be planetary gear 09. But it can also be a pinion acting as a gear connection or a belt pulley together with a drive wheel.

At this satellite printing unit is exemplarily right above the drive of a two distribution cylinder 21; 22 having dampening 06 shown. The common rotary drive of the two distribution cylinders 21; 22 via the traction means 68 by means of the drive motor 24 and the axial drive via a gear, in particular via a crank mechanism, takes place in the manner described above for the inking unit 02. The distribution cylinder 12; 14 of the inking unit 06 are corresponding Fig. 5 driven.

Right below is exemplified the drive of only one distributor cylinder 21 having inking unit 02. The rotational and that in the axial direction takes place in a manner corresponding to the above for the dampening unit 06.

An unillustrated embodiment of the satellite printing unit has four printing units 01 and two satellite cylinders 28. In this case, z. B. both satellite cylinder 28 is executed with its own drive motor 08. The for the printing cylinder 03; 07 og versions for individual or pairwise, direct or indirect drive However, they apply correspondingly to the two satellite cylinders 28.

The configuration of the traction mechanism drive has for all present examples, whether only one or more iridescent distribution cylinder 12; 14; 21; 22 via the traction means 43; 68 are driven to the significant advantage that the spatial course of the traction means 43; 68 despite traversing the driven cylinder 12 to be driven; 14; 21; 22 substantially stationary to the drive motor 17; 24 remains, the drive is undisturbed, even and material friendly. The drive motor 17; 24 can be arranged in a simple manner fixed to the frame.

To a voltage of the traction means 43; 68 pretending or maintaining can in development of the invention, a roller 69 ( Fig. 8 ), which in a the traction means 43; 68 deflecting manner adjustable or prestressed executed.

So that the traction means 43; 68 does not extend laterally, the drive has a relative to the drive motor 17 at least at one point; 24 arranged at a fixed distance, transverse to the transport direction of the traction means 43; 68 effective leadership 71 on. Such a guide 71 is in a preferred embodiment as a degree 71 on the drive wheel 47 of the drive motor 17; 24 and / or on the possibly existing role 69 ( Fig. 8 . 10 . 11 . 12.13 ) arranged. In each case the first embodiment of the inking or dampening unit 02; 06 has in addition to the drive wheel 47 or the roller 69 and the distribution cylinder 12; 14; 21; 22 associated drive wheel 44; 46 such a guide 71, and preferably on both sides of the traction means 43; 68. For the embodiment according to the respective second exemplary embodiments, such a guide 71 on the drive wheel 44; 46 omitted or is to be spaced so far that the traction means 43; 68 on the full, required for the amplitude A width b44 can rotate undisturbed.

Is the demand for independence in the rotary drive of inking and dampening 02; 07 not given, so in a particularly cost-effective Execution of the distribution cylinder 12; 14 of the inking unit 02 and the or the distribution cylinder 21; 22 of the dampening unit 06 a printing unit 01 all together via a single traction means 43, in particular with a uniform direction of rotation, are driven.

The rotary drive of the distribution cylinder 12; 14; 21; 22 with the drive motor 17 and the associated components such. B. the transmission 16; 23 and the axial drive of the distribution cylinder 12; 14; 21; 22 with the drive motor 18; 27 and the associated components such. B. the transmission 19; 26 for the axial movement are in the FIGS. 6 to 13 on a same side of the distribution cylinder 12; 14; 21; 22, however, such as to the Figures 3 and 4 described in an advantageous development on mutually different machine sides or end faces of the distribution cylinder 12; 14; 21; 22 may be arranged.

The or the distribution cylinder 12; 14; 21; 22 of the inking or dampening 02; 06 may or may be driven individually or to several in advantageous embodiments depending on the application in other than in the preceding examples axially.

So can, as in Fig. 15 shown, the axial drive of two distribution cylinders 12; 14; 21; 22 according to the principle of a rocker arm of the drive motor 18, not shown; 27 take place on a shaft 72 which is torsionally rigid with an eccentricity e forming and rotating coupling 73 is connected. The end of the coupling 73 is pivotally connected to one end of another coupling 74, the second end of which is pivotally connected to an arm 76 of a three-armed lever 77. The three-armed lever 77 is pivotally mounted about a frame-fixed pivot axis S, wherein the two free arms 78; 79 each articulated with one end of the distribution cylinder 12; 14; 21; 22 are connected. The connection between the distribution cylinder 12; 14; 21; 22 and lever 77 allows, as described above, a rotational movement of the distribution cylinder 12; 14; 21; Coupling 74 and arm 76 represent a rocker. The coupling 73 may also be designed as a dashed line indicated drive wheel, to which the other coupling 74th is articulated eccentrically.

The axial drive of one of the distribution cylinders 12; 14; 21; 22 can be like in Fig. 16 schematically shown by the drive motor 18, not shown; 27 go via the shaft 72 to a drive wheel 81, which is connected eccentrically e about its centrically lying shaft 72 hingedly connected to a coupling 82. The other end of the coupling 82 is articulated and fixed to the frame. When rotating the drive wheel 81, the drive wheel 81 abruptly pushes off the frame and moves via a driver 83 and a bearing 84 with stops the distribution cylinder 12; 14; 21; 22 in the axial direction. The drive motor 08 can be arranged stationary with respect to the driver 83 or the axis of rotation of the drive wheel 81 and perform the oscillating movement. The drive wheel 81 can also be connected via a positive drive connection between the drive wheel 81 and a by the drive motor 18; 27 driven pinion 86 are driven, if the toothing is designed accordingly to ensure a sufficient engagement despite lateral movement of the drive wheel 81.

Fig. 17 shows a variant for the axial drive, wherein a swash plate 87 by the drive motor 18; 27 is rotationally driven. The tumbling movement is as axial movement via driver 88 and coupling 89 on one or two distribution cylinders 12; 14; 21; 22 transmitted.

In the in Fig. 18 variant shown is the drive means for the axial movement of one or more distribution cylinders 12; 14; 21; 22 as a pressurizable medium pressure cylinder 91, in particular a double-chamber cylinder 91, executed. This is z. B. when two distribution cylinders 12; 14; 21; 22 to be driven simultaneously to be mounted between two carriers 92, which via a bearing 93 in each case with the friction cylinders 12; 14; 21; 22 are connected.

In an in Fig. 19 illustrated variant of the embodiment according to Fig. 16 , will the Distribution cylinder 12; 14; 21; 22 here by one of the printing cylinders 03; 07; 28 mechanically independent, not shown here drive motor 17; 24 rotatory, but without a dedicated drive means 18; 27 axially driven. The axial stroke takes place here by the rotation of the distribution cylinder 12; 14; 21; 22 via a positive gear 94, 96 from z. B. one with the distribution cylinder 12; 14; 21; 22 rotatably connected worm wheel 94 and a worm 96. The now rotating about the shaft 72 worm 94 has the eccentric e articulation of the coupling 82, which in the same manner as Fig. 16 described cyclically repels the frame and the driver 83 and the bearing 84 with stops the distribution cylinder 12; 14; 21; 22 moves in the axial direction.

In unillustrated embodiment, the drive means 18; 27 also as a linear motor 18; 27 or be based on magnetic forces.

In an in Fig. 20 illustrated embodiment, the axial drives of two distribution cylinders 12; 14; 21; 22 from a common drive means 18; 27, in particular drive motor 18; Be 27, driven and, instead of a wave such. B. the shaft 32 in Fig. 6 , via a traction mechanism, z. B. a belt drive 97, be coupled together. Here, the belt drive 97, for example, each axially driven Reibzylinder 12; 14; 21; 22 have a pulley 99, which in turn via at least one crank mechanism 101, the respective distribution cylinder 12; 14; 21; 22 drives. The pulleys 99 are connected via a belt 98, z. B. timing belt 98 or V-belt from in Fig. 20 not shown, driving the belt 98 drive motor 18; 46 driven. The crank mechanism 101 may also be embodied in a manner other than that shown, having a rocker.

It can also be as schematic in Fig. 21 shown a disk 102, z. B. cam 102, be driven by a circumferential curved groove 103 through the pulley 99, wherein this one with the distribution cylinder 12; 14; 21; 22 connected stop 104, z. B. driver 104, acts together. The driver 103 may be performed in different ways, but must in the axial direction of the distribution cylinder 12; 14; 21; 22 be firmly connected with this. About a traction means 98 can again several of these discs 102 different distribution cylinder 12; 14; 21; 22 be driven. An axial drive via a cam 102 can be done in a variant in the reverse manner, by this with the distribution cylinder 12; 14; 21; 22 is in rotational drive connection, and the circumferential groove 103 cooperates with a frame-fixed stop 104. The cam 102 can then by means of the drive motor 18; 27, z. B. via a differential gear or a so-called. Harmonic Drive (a running with an internally toothed gear and a rotatable therein deformable externally toothed gear) in their speed relative to the speed of the Reibzylinders 12; 14; 21; 22 to be changed.

In general, in an advantageous embodiment of drives via traction means 43; 68 a variant of advantage, wherein in the relevant powertrain next to the traction mechanism either no gear connections or only individually encapsulated gear transmission (eg., Reduction and / or auxiliary transmission) are provided. So no extensive oil space is needed. Alternatively, the entire drive train would have to be encapsulated.

The other embodiments of the axial drive described above can with the in the FIGS. 1 to 14 Variants shown for the drives of the printing cylinder 03; 07; 28, the inking or dampening 02; 06 mutually, and the gear 09; 16; 23; 19; 26; 31 can be combined as required.

LIST OF REFERENCE NUMBERS

01

Printing unit, offset printing unit

02

inking

03

Cylinder, rotary body, forme cylinder, printing cylinder

04

Substrate, substrate web, web

05

-

06

dampening

07

Cylinder, rotary body, transfer cylinder, printing cylinder

08

drive motor

09

Transmission, planetary gear, traction mechanism

10

-

11

Roller, applicator roller, rotary body

12

Roller, distribution cylinder, rotation body

13

Roller, transfer roller, rotary body

14

Roller, distribution cylinder, rotation body

15

-

16

Transmission, traction mechanism, gear train, reduction gear

17

drive motor

18

Drive means; Drive motor, linear motor, working cylinder

19

Transmission, crank mechanism

20

Roller, applicator roller, rotary body

21

Roller, distribution cylinder, rotation body

22

Roller, distribution cylinder, rotation body

23

Transmission, reduction gear, traction mechanism

24

drive motor

25

Roller, transfer roller, rotary body

26

transmission

27

Drive means, drive motor, linear motor, working cylinder

28

Cylinder, satellite cylinder, rotating body, impression cylinder, printing cylinder

29

drive motor

30

-

31

Transmission, traction mechanism

32

casing

33

side frame

34

casing

35

-

36

casing

37

room

38

room

39

room

40

-

41

Roller, anilox roller, anilox roller, rotary body

42

casing

43

Traction means, toothed belt

44

Drive wheel, pulley

45

-

46

Drive wheel, pulley

47

drive wheel

48

Opening, drilling, stop

49

Bolt, stop

50

-

51

Bearings, needle roller bearings, linear bearings

52

Eccentric, eccentric bush

53

wave

54

Paddock, first

55

-

56

lever arm

57

wave

58

lever arm

59

lever arm

60

-

61

Paddock, second

62

paddock

63

clutch

64

clutch

65

-

66

Eccentric, second

67

effective area

68

Traction means, toothed belt

69

role

70

-

71

Leadership, degree

72

wave

73

paddock

74

paddock

75

-

76

poor

77

Lever, three-armed

78

poor

79

poor

80

-

81

drive wheel

82

paddock

83

takeaway

84

camp

85

-

86

pinion

87

swash plate

88

takeaway

89

paddock

90

-

91

Working cylinder, double-chamber cylinder

92

takeaway

93

storage

94

Gear, worm wheel

95

-

96

Gearbox, screw

97

Belt drive, traction mechanism

98

Belts, timing belts

99

pulley

100

-

101

crankshaft

102

Disc, cam

103

groove

104

Stop, driver

A

amplitude

b43

Width (43)

b44

Width (44)

b46

Width (46)

b68

Width (68)

S

swivel axis

e

eccentricity

Claims (26)

Drive of a printing unit (01) with at least one printing cylinder (03; 07) and at least one roller (12; 14; 21; 22) of a dyeing and / or dampening unit (02; 06), which is driven by a drive means (18; 27). can be driven in the axial direction by means of a gearbox (19; 26), characterized in that the roller (12; 14; 21; 22) is mechanically independent of the drive means (17; 24) by means of a drive motor (17; 24) which is different from the drive means (18; 18, 27) of the roller (12; 14; 21; 22), and mechanically independent of a rotary drive of the printing cylinder (03; 07) is rotationally driven. Drive according to Claim 1, characterized in that the roller (11; 12; 13; 14; 20; 21; 22; 25; 41) is provided by the drive motor (17; 24) via at least one externally closed, encapsulated transmission (16 ; 23) is rotationally driven. Drive according to Claim 1, characterized in that the inking unit (02) has at least two rollers (11; 12; 13; 14) which can be jointly driven in rotation by means of the drive motor (17) via a gear (16) which is closed off externally , Drive according to Claim 1, characterized in that the inking unit (02) has two rollers (11; 12; 13; 14) which can each be driven in rotation by means of a separate drive motor (17) via a respective gear (16) which is closed off from the outside are. Drive according to Claim 1, characterized in that the dampening unit (06) has at least two rollers (20; 21; 22; 25) which can be jointly driven in rotation by means of the drive motor (24) via a gear (23) which is closed off externally , Drive according to Claim 1, characterized in that the dampening unit (06) has at least two rollers (20; 21; 22; 25), each of which rotates by means of its own drive motor (24) via a gear (23) which is closed off from the outside are drivable. Drive according to one or more of claims 1 to 6, characterized in that the printing unit (01) has a dampening unit (06) with at least one roller (20; 21; 22; 25) which is mechanically independent of the drive of the printing unit cylinder (03; 07) and from the drive of the inking unit (02) by a separate drive motor (24) via its own, closed to the outside gear (23) is rotationally driven. Drive according to one or more of Claims 1 to 6, characterized in that the printing unit (01) has an inking unit (06) with at least one roller (11; 12; 13; 14; 41) which is mechanically independent of the drive of the printing unit cylinder (11). 03, 07) and from the drive of the dampening unit (06) by a separate drive motor (17) via its own, closed to the outside gear (16) is rotationally driven. Drive according to claim 1, characterized in that the printing unit (01) has a printing cylinder (03; 07) designed as a forme cylinder (03) and as a transfer cylinder (07). Drive according to claim 1, characterized in that the roller (12; 14; 21; 22) is designed as a distribution cylinder (12; 14; 21; 22). Drive according to claim 10, characterized in that all the distribution cylinders (12; 14; 21; 22) of the printing unit (01) and all printing unit cylinders (03; 07) have their own Drive motor (08, 17, 24) and its own, closed to the outside gear (09, 16, 23). Drive according to Claim 10, characterized in that the distribution cylinders (12, 14) of the inking unit (02) in pairs and the printing unit cylinders (03, 07) each individually have their own drive motor (08, 17) and their own transmission, which is closed off from the outside (09; 16). Drive according to claim 10, characterized in that the distribution cylinders (21, 22) of the dampening unit (06) in pairs and the printing unit cylinders (03, 07) each individually have their own drive motor (08, 17, 24) and their own, for themselves to the outside completed transmission (09, 16, 23). Drive according to Claim 10, characterized in that two distribution cylinders (12; 14) of the inking unit (02) and / or two distribution cylinders (21; 22) of the dampening unit (06) and the two printing unit cylinders (03; 08; 17; 24) and an externally closed gear (09; 16; 23). Drive according to Claim 1, 11 or 12, characterized in that the drive of the printing unit cylinder (03; 07; 28) takes place essentially coaxially on the printing unit cylinder (03; 07; 28), Drive according to Claim 1, characterized in that the printing unit cylinder (03, 07) is rotationally driven by a drive motor (08) via an encapsulated transmission (09). Drive according to Claim 16, characterized in that the drive motor (08) is arranged substantially coaxially with the associated printing unit cylinder (03; 07; 28). Drive according to Claim 16, characterized in that each of the transmissions (09; 16; 23) is arranged in its own housing (32; 34; 36) which is spatially separated from the other transmissions (09; 16; 23). Drive according to claim 1 or 16, characterized in that the gear (09, 16, 23) on the printing cylinder (03, 07) and / or the inking or dampening unit (02, 06) is designed as a gear train. Drive according to claim 1 or 16, characterized in that the gear (09; 16; 23) on the printing unit cylinder (03; 07) and / or on the inking or dampening unit (02; 06) has a belt drive. Drive according to claim 1 or 16, characterized in that the gear (09) on the printing cylinder (03, 07) and / or on the inking or dampening unit (02, 06) is designed as the rotational speed of the drive motor (08) undercutting planetary gear. Drive according to claim 1, characterized in that the printing unit (01) is part of a bridge printing unit with two according to one or more of claims 1 to 21 driven, cooperating printing units (01). Drive according to claim 1, characterized in that the printing unit (01) is part of a satellite printing unit having at least two printing units (01) driven according to one or more of claims 1 to 21, which interact with at least one satellite cylinder (28). Drive according to Claim 23, characterized in that the satellite cylinder (28) is driven in rotation by a drive motor (29) independently of the drive motors (08) of the printing unit cylinders (03; Drive according to claim 24, characterized in that the drive to the satellite cylinder (28) via its own, self-contained transmission (31). Drive according to claim 24, characterized in that the drive to the satellite cylinder (28) takes place coaxially.

Images