EP1361049A2 - Printing unit - Google Patents

Abstract

The unit has at least four cylinders with a first pair of first forme and transfer cylinders and a second pair of second forme and transfer cylinders, whereby the transfer cylinders work together in a print-on position. At least one of the transfer cylinders has a set up speed that differs from a production speed and from null and the associated forme cylinder simultaneously has a set-up speed that differs from a production speed and from null. The unit has at least four cylinders with a first pair of a first forme cylinder (01) and a first transfer cylinder (02) and a second pair of a second forme cylinder (09) and a second transfer cylinder (11), whereby the transfer cylinders work together in a print-on position. At least one of the transfer cylinders has a set up revolution rate that differs from a production revolution rate and from null and the associated forme cylinder simultaneously has a set-up revolution rate that differs from a production revolution rate and from null.

Description

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

From DE 196 03 663 A1 a four-cylinder printing unit is known, wherein the two cooperating transfer cylinder fixedly coupled together, and optionally about the drive of one or both associated form cylinder or one with the Engines connectable cross shaft are driven. In one mode of operation is in order Plate change one of the form cylinder shutdown, while the associated Transfer cylinder continues to run synchronously to the second forme cylinder.

EP 09 97 273 A2 discloses an operating mode of a four-cylinder printing unit, wherein a Shaped cylinder is parked from the other co-acting cylinders. Of the parked cylinder is in an example by a drive motor and in one Another example by an auxiliary motor rotatable.

By EP 0 621 133 A1 a printing unit with two pairs of cylinders is known, wherein the cylinders of at least one of the pairs each have their own, of the other cylinders have independent drive motor.

According to the article "Digital direct drive on printing machines", Druckspiegel 9/1999, Cylinders and rollers can be controlled separately, eg. B. from each other independent changing of several printing plates or changing a blanket, the remaining units are stationary. It is also possible, each pressure point or Print engine to drive independently.

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

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that a large Diversity of operation and variability of a printing unit or a cylinder composite is created.

For example, cylinder or cylinder groups can be independent of each other, move at different speeds or even directions of rotation, which For example, when printing plate or blanket change, when a paper web, is required for independent inking or washing of rollers and cylinders. In particular, different actions of the setup with the standstill (speed Zero) or the production speed of different setup speed or speed for the individual cylinder types are thus next to each other, or while running or standing Paper web possible.

Particularly advantageous is the simultaneous fulfillment of several different Requirements for different components of a printing unit or printing unit. The modes of operation contribute to a time saving and thus to lowering the Product unit costs and allows for the implementation of different Set-up work at production speed or in pull-in speed Paper web. A flying plate change for the one- or two-sided Imprintbetrieb is possible. For example, in advantageous operating states a printing plate changed or pre-colored while the associated transfer cylinder continues with production speed, or a washing, a pre-inking or also a change of the elevator takes place.

An advantageous mode of operation in the case of two, one each form and one Transfer cylinder exhibiting pairs, is the turning of one of the two form cylinder with a setup speed, while the remaining cylinders continue at production speed rotate. Also, both transfer cylinders can stand still or at a speed for pulling in a paper web or at production speed while one of the Form cylinder or both are colored.

Also for four-cylinder printing units and especially for two Four-cylinder printing units formed eight-cylinder printing units are particularly in With regard to the flying plate change or the Imprinterfunktionalität diverse Operating conditions advantageous. A printing operation can be maintained, for example be while one or more forme cylinder, with from the production speed different speed and z. T. also the direction of rotation, is or will be changed.

A y- or λ-shaped six-cylinder printing unit is z. B. flexible usable for the 2/1-continuous printing or else for the flying plate change or in imprint function during the 1/1 pressure when one of the forme cylinders is at a speed and Rotation is operated for the change, while all other cylinders with Turn production speed. The assigned to the form cylinder to be changed Transfer cylinder, for example, at the same time with a speed and direction of rotation operated for washing or otherwise. The same applies to one o. g. Seven-, nine- or ten-cylinder printing unit.

Even when setting up before starting or when printing is finished the operating conditions by flexibility and time and Makulaturersparnis a high Meaning too. For example, forme cylinder and transfer cylinder can simultaneously go through different setup programs.

Also advantageous is an independent operation of the associated with the forme cylinders Rollers for the paint application. For example, regardless of the speed and the direction of rotation washing or pre-inking, during the form cylinder also goes through a setup program.

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

Fig. 1

eine schematische Seitenansicht eines Form- und Übertragungszylinders eines Druckwerkes mit zugeordneter Walze;

Fig. 2

eine schematische Seitenansicht einer Vierzylinder-Druckeinheit;

Fig. 3

eine schematische Seitenansicht einer Sechszylinder-Druckeinheit;

Fig. 4

eine schematische Seitenansicht einer Achtzylinder-Druckeinheit;

Fig. 5

eine schematische Seitenansicht einer Vierzylinder-Druckeinheit mit abgestelltem Formzylinder;

Fig. 6

eine schematische Seitenansicht einer Vierzylinder-Druckeinheit mit zwei abgestellten Formzylindern;

Show it:

Fig. 1

a schematic side view of a forming and transfer cylinder of a printing unit with associated roller;

Fig. 2

a schematic side view of a four-cylinder printing unit;

Fig. 3

a schematic side view of a six-cylinder printing unit;

Fig. 4

a schematic side view of an eight-cylinder printing unit;

Fig. 5

a schematic side view of a four-cylinder printing unit with parked cylinder form;

Fig. 6

a schematic side view of a four-cylinder printing unit with two parked cylinders form;

A printing unit of a printing press, in particular a rotary printing press, has a first cylinder 01, z. B. a forme cylinder 01, and one in one Pressure-on-position cooperating second cylinder 02, z. B. a first Transfer cylinder 02 of a printing unit 03. The form cylinder 01 can with a Roller 04, z. B. a paint roller 04, in particular an inking roller 04 or a Raster 04 or Aniloxwalze 04, cooperate. The transfer cylinder 02 acts in a print-on position with a web 06, for example a printing material web 06, in particular a paper web 06, together.

The forme cylinder 01 is rotatable independently of the transfer cylinder 02, d. H. he turns depending on the operating condition z. T. with the transfer cylinder 02 different speeds and / or directions of rotation. Likewise, the rotates Transfer cylinder 02 z. T. regardless of the forme cylinder 01.

The operating states are defined below as speeds or over effective Circumferential speeds on the lateral surfaces, in the following short Called "speeds". The terms of the term "speed" mentioned Operating conditions are to be applied to the term "speed" in the same way.

The forme cylinder 01 may have one or more of the following operating conditions take: he can be at a standstill, d. H. with a speed "zero" commercial vehicle but he can also with a production speed PFZ or a set-up speed RFZ turn which i. d. R. from the standstill NFZ and the production speed PFZ is different.

The setup speed RFZ can turn a speed DWFZ for changing the Printing form, a speed VEFZ for pre-inking or a speed WFZ for the Be washing. Another setup speed RFZ can also be a speed TFFZ for the Dry driving, d. H. the decolorization of the forme cylinder 01 on the web 06, or a Speed EFZ for retraction of the web 06 be. In the case of direct imaging the surface of the forme cylinder 01 or the printing forme on the forme cylinder 01 can the setup speed RFZ also represent a speed BBFZ for imaging.

Also, the transfer cylinder 02 may be one or more of the following Operating conditions: he can be at a standstill, d. H. he turns with one Speed "zero" NÜZ, he can with a production speed PÜZ or a set-up speed Turn RÜZ, which also i. d. R. from the standstill truck and the production speed PFZ is different. The setup speed RZZ can turn a speed AWZZ for the Change of the elevator, a speed EÜZ for pulling in a train 06, a Speed WÜZ for washing or a speed VEÜZ for pre-inking the Be transfer cylinder 02.

The production speed PFZ for the forme cylinder 01 is z. B. between 20,000 and 50,000 revolutions per hour (U / h), preferably at 35,000 to 45,000 U / h. The Production speed PÜZ the transfer cylinder 02 also between 20,000 and 50,000 U / h, preferably at 35,000 to 45,000 U / h.

The characteristic for the pre-inking speed VEFZ of the forme cylinder 01 is For example, in the range of 6,000 to 12,000 U / h.

The speed VEZZ of the transfer cylinder 02 is, for example, between 6,000 U / h to 12,000 U / h.

For washing the forme cylinder 01, the speed WFZ z. At 200 to 1,000 U / h, in particular between 300 and 800 U / h, while the speed WÜZ for the Washing the Übetragungszylinders 02 z. B. between 300 and 40,000, in particular between 300 to 6,000 U / h.

The speed EFZ of z. B. revolving forme cylinder 01 for pulling the web 06th is for example 300 to 2,000 U / h, in particular 300 to 800 U / h, which is approximately a pull-in speed for the web 06 of 6 to 30 m / min, in particular 6 to 12 m / min corresponds.

The speed EZZ of the transfer cylinder 02 for retraction of the web 06 is For example, 300 to 2,000 U / h, in particular 300 to 800 U / h, which is approximately one Retraction speed for the web 06 from 6 to 30 m / min, in particular 6 to 12 m / min equivalent.

The speed DWFZ can be used to automatically change the printing form between 300 U / h and 2,000 U / h, in particular between 300 and 1,000 U / h, while during the change process i. d. R. a direction reversal of the direction of rotation takes place. The Speed DWFZ can, however, z. B. in so-called. Jogging, between 120 and 300 U / h. For direct imaging of the printing form or the cylinder surface on the Form cylinder 01, z. Example by means of laser / (diodes), the speed is BBFZ of the forme cylinder 01 i. d. R. over the production speed PFZ, for example, over 50,000 U / h, especially over 70,000 U / h for web-fed rotary presses, and over 5,000 U / h, in particular between 5,000 and 30,000 U / h for sheet-fed printing machines.

For the change of the elevator on the transfer cylinder 02, the speed is AWZZ between 300 and 2,000 U / h, in particular between 300 and 1,000 U / h. Will the Changing the lift, as currently preferred, done manually, so can the AWZ speed also between 120 and 1,000 U / h.

The speed TFFZ of the forme cylinder 01 for dry running, d. H. Discolouring the Form cylinder 01, z. B. between 2,000 and 4,000 U / h.

The mentioned speeds for forme cylinder 01 and transfer cylinder 02 relate preferably on cylinder 01; 02 double the circumference, d. H. on cylinder 01; 02, up whose circumference in the circumferential direction two printing plates can be fastened one behind the other. The Scopes are format dependent and are z. B. between 900 mm and 1,300 mm. For the use of cylinders 01; 02 simple circumference are the speeds for to double the Form 01 and the transfer cylinder 02. The same applies to Printing units 03, wherein a forme cylinder 01 with a simple scope cooperates with a transfer cylinder 02 double the circumference.

For one or more of said speed ranges of the forme cylinder 01 and the Transfer cylinder 02 are the directions of rotation counterclockwise and clockwise possible. These directions of rotation are defined by the following figures, which the side views of the cylinder 01; 02 represent.

The above operating conditions and preferred speeds are also below on more in the description coming form cylinder, transfer cylinder apply.

Also, the ink roller 04, as screen or anilox roller 04 or as rubberized Inking roller 04 executed, may be at a standstill, d. H. she turns with one Speed "zero" NW, with production speed PW or with setup speed RW. The Setup speed RW can be a speed VEW for pre-inking, a speed WW for the washing or a speed WLW for a continued running of the ink roller 04.

The preferred speed ranges for the ink roller 04 depend on the printing process and / or from the configuration of the printing unit or the inking unit.

In the following, between a simple rubberized inking roller 04, a Anilox 04 or anilox roller 04 and an engraved roller 04 double the circumference be differentiated. The executed as a simple, rubberized inking roller 04 Ink roller 04 preferably has approximately one third of the circumference of a forme cylinder 01 on double circumference. A directly with the forme cylinder 01 acting together Anilox roller 04 may have a circumference of a forme cylinder 01 of simple circumference, or, especially in high or flexographic printing, a forme cylinder 01 double circumference exhibit.

The production speed PW is z. B. between 40,000 to 100,000 U / h for with the Form cylinder 01 directly cooperating anilox 04 or anilox roller 04 simple Scope, and between 60,000 and 150,000 U / h in the case of the inking roller 04. For the anilox roller 04 double circumference is the production speed PW z. B. between 20,000 to 50,000 U / h.

The speed VEW for pre-inking the ink roller 04 is z. B. between 12,000 to 24,000 U / h in the case of anilox 04 or anilox roller 04 simple circumference and between 18,000 and 36,000 U / h in the case of an inking roller 04.

The speed WW for washing the ink roller 04 is z. B. 600 to 1,600 U / h in Trap of anilox 04 or anilox roll 04 simple circumference and is between 900 and 2,400 rpm for the case of an inking roller 04.

For the continued running of the ink roller 04 against a drying of the color is the Speed WLW preferably between 3,000 and 6,000 U / h for the anilox roller 04 double circumference, between 6,000 and 12,000 U / h for the anilox roller 04 simple Circumference and between 9,000 and 18,000 U / h for the inking roller 04.

As already mentioned above, the mentioned operating conditions are also defined effective peripheral speeds, short speeds, the rotational body:

The production rate of the forme cylinder 01 PFZ is z. B. between 6.4 and 16 m / s, in particular between 11 and 15 m / s. The same goes for the Transfer cylinder 02, if available.

The speed of the forme cylinder 01 PWFZ for the automated change of the Printing form is z. B. between 0.32 and 0.64 m / s, for manual change z. B. between 0.10 and 0.32 m / s. For pre-inking the printing form is the Speed VEFZ of the forme cylinder 01 z. B. between 1.9 and 3.9 m / s while they for washing the printing form WFZ z. B. between 0.06 and 0.32 m / s, in particular is between 0.10 and 0.26 m / s. For dry running TFFZ the printing form is the Speed of the forme cylinder 01 z. B. between 0.64 and 1.3 m / s. The Speed of the forme cylinder BBFZ 01 is i. d. R. greater than 16 m / s, in particular greater than 22 m / s for web presses, and for sheetfed presses greater than 1.6 m / s, in particular between 1.6 and 9.6 m / s. For feeding the web is the speed EFZ of the forme cylinder 01 z. Between 0.10 and 0.50 m / s, in particular between 0.10 and 0.2 m / s.

For the transfer cylinder 02 are the same values or areas of the forme cylinder 01 for the corresponding operating states of pre-inking VEZZ, for the change the lift AWÜZ and pulling the track EÜZ advantageous. The speed of the transfer cylinder 02 AWZZ for the manual change of the elevator is located between 0.04 and 0.32 m / s. When washing the transfer cylinder 02 WÜZ is its speed z. B. between 0.10 and 13 m / s, in particular between 0.10 and 1.9 m / s.

The speeds for the ink roller 04 is directed to the operating conditions in the form cylinder 01 salaried state according to its speed, so that For example, the production speed of the ink roller 04 PW also in the area between 6.4 and 16 m / s, in particular between 11 and 15 m / s. Is the ink roller 04 Run as an anilox roller 04, so the scope can then z. B. about the circumference a forme cylinder 01 simple circumference correspond. Is the circumference of the anilox roller 04 chosen larger, z. B. between 1.0 and 1.2 m, the o. G. Rotational speeds PW smaller to choose. In the case of executed as inking roller 04 ink rollers 04 applies corresponding, wherein the speed to be selected again by the circumference of the ink rollers 04 depends on which z. B. between 0.35 and 0.5 m.

The speed of the ink roller 04 is for the pre-inking z. B. between 1.9 to 4.0 m / s. and for washing between 0.08 and 0.3 m / s. For the continuation amounts to the speed of the ink roller 04 z. B. between 0.95 and 1.95 m / s.

At the lower peripheral or underlying diameter of the anilox roller 04, as they are z. B. with a double-sized forme cylinder 01 in the direct printing process is advantageous, the o. g. Ranges of speeds for the anilox roller 04 in one advantageous variant to the corresponding speed, z. By 0 to 30% In particular, to increase by 10 to 20%, so that the advantageous range for the Speed is maintained approximately.

Suitable or desired speeds for the mentioned, as a cylinder 01; 02 and Roll 04 executed rotating body 01; 02; 04 are aware of the effective Scopes for different diameters based on the advantageous speeds determined.

In the figures, the rollers 04 are generalized for simplicity and with a uniform diameter shown. In the embodiments, the Operating conditions described by means of speeds. The same embodiments however, are also characteristic of the operating conditions Read speeds.

In order to limit the number of figures are in Figs. 1 to 4, the arrangements of Cylinder 01; 02 and rollers 04 each shown spaced from each other. The conditions to each other employee or turned off cylinder 01; 02 or rollers 04 are apparent from the descriptions in the embodiments and are therefore not removable only from the mentioned figures. Figs. 5 and 6 reflect in the Embodiments set forth states for the hiring and parking of cylinders or rolling again.

A first group of examples (FIG. 1), first to twelfth embodiments, describes advantageous operating conditions for a first pair 07 from the forme cylinder 01 and the cooperating transfer cylinder 02.

In a first example, the forme cylinder 01 rotates for pre-inking with the Setting speed RFZ, in this case with the characteristic for pre-inking Speed VEFZ. The transfer cylinder 02 is at standstill NÜZ, z. B. order an already retracted train 06 not to promote, resulting in a reduction of Waste paper means. The forme cylinder 01 can be a cooperating inking roller 04 have, which is either coupled to this, or advantageously also regardless of the forme cylinder 01 rotates. In the present embodiment, this rotates with the setup speed corresponding to the peripheral speed of the forme cylinder 01 RW, in the opposite direction, and is employed on this. The setup speed RW, here the speed VEW for pre-inking the ink roller 04 does not have to be identical to be of the forme cylinder 01, but is dependent on the peripheral ratio of Form cylinder 01 and the ink roller 04.

In a second example, the forme cylinder 01 further rotates at the speed VEFZ for the Pre-inking, during the transfer cylinder 02 with the setup speed RZZ according to the speed WÜZ for washing the Übetragungszylinders 02 rotates.

In a third example, the forme cylinder 01 rotates at the speed VEFZ for the Pre-inking, during the transfer cylinder 02 with the setup speed RZZ rotates according to the speed EÜZ for retraction of the web 06.

In a fourth example, the forme cylinder 01 rotates at setup speed RFZ, in this case with the speed DWFZ for changing the printing form. The transfer cylinder 02 simultaneously rotates with the speed EZZ for drawing in the web 06. In the case directly Form cylinder 01 to be imaged rotates the forme cylinder 01 at the speed BBFZ for the Imaging of the forme cylinder 01.

In the fifth example, the forme cylinder 01 rotates at the speed BBFZ for imaging the forme cylinder 01, while the transfer cylinder 02 at standstill NÜZ located. Form cylinder 01 and transfer cylinder 02 are offset from each other. The Ink roller 04 is turned off and is, for example, at standstill NW.

In the sixth example, the forme cylinder 01 rotates at the speed DWFZ for changing the printing plate, during the transfer cylinder 02 at the speed WÜZ for the Washing turns. Here too, for the case directly to be imaged form cylinder 01 this Alternatively, rotate with the speed BBFZ for imaging. Form cylinder 01 and Transfer cylinder 02 are offset from each other. The ink roller 04 is from Shut down form cylinder 01 and also rotates, for example, with setup speed RW, the Speed VEW for pre-inking, speed WW for washing the ink roller 04 or the speed WLW for the continuation of the ink roller 04 against the Dry.

In the seventh example, the forme cylinder 01 is at standstill NFZ, while the Transfer cylinder 02 at the speed EÜZ for retraction of the web 06 rotates. The Ink roller 04 may be off or on.

Also in the eighth example, the forme cylinder 01 is at standstill NFZ, while However, the transfer cylinder 02 with the speed WÜZ for washing the Transfer cylinder 02 rotates. Again, the ink roller 04 off or hired be.

In a group of examples (Figure 2), ninth to fourteenth example, the first one acts Pair 07 in a print on position over the web 06 with a second pair 08 of Cylinders 09; 11, z. B. from a second forme cylinder 09 and a second Transfer cylinder 11, together. Basically, for the second pair 08, are parallel and regardless of the operating state of the first pair 07, all operating states off the first to eighth example of the first pair 07 possible. But it can also do that second pair 07 may be mechanically coupled. The following are some advantageous ones Operating modes for a four-cylinder printing unit 12, for example a Bridge printing unit 12, described.

In a ninth example, the two transfer cylinders 02; 11 together employed and turn together with one of the forme cylinder 09; 01 with Production speed PFZ; PÜZ, while the other of the two forme cylinder 01; 09 with one of the set-up rotational speeds RFZ rotates (FIG. 5). The setup speed RFZ here z. B. the Speed BBFZ for imaging dar. The rotating in production speed PFZ Form cylinder 09; 01 is preferably at the associated transfer cylinder 11; 02 employed and rotates in the opposite direction of rotation to cooperate Transfer cylinder 11; 02, which in turn is opposite to the other Transfer cylinder 02; 11 turns.

In a variant of the ninth example can not with production speed PFZ rotating form cylinder 01; 09 but also the speed VEFZ for pre-inking the Forme cylinder 01; 09 have.

In a tenth embodiment (Figure 6) rotate as in the ninth Embodiment, the two transfer cylinder 02; 11 with production speed PÜZ, while the two forme cylinder 01; 09 with setup speed RFZ, in particular with rotate the speed BBFZ for imaging, and from the transfer cylinder 02; 11 are turned off.

In a likewise advantageous variant of the tenth embodiment, the Forme cylinder 01; 09 the speed VEFZ for pre-inking on.

In an eleventh embodiment (FIG. 6), the two transfer cylinders 02 rotate and 11 with one of their set-up speeds RZZ, z. B. with the speed EZZ for feeding the web 06, while both forme cylinder 01; 09 are turned off and also with a their set-up speeds RFZ, for example, with the speed PWFZ for the change of Printing form or alternatively with the speed BBFZ for imaging, rotate. form cylinder 01; 09 and associated transfer cylinder 02; 11 are not employed. Likewise, the ink roller 04 is turned off by the forme cylinder 01.

Likewise, as in the examples one to eight, only one of the Forme cylinder 01; 09 with one of its set-up RPZ rotate while the associated transfer cylinder 02; 11 has one of his Rüz RÜZ numbers.

In a twelfth embodiment, one of the two forme cylinder 01; 09 from the eleventh embodiment in standstill NFZ.

In the thirteenth embodiment (Fig. 6) are the two Transfer cylinder 02; 11 at standstill NÜZ, while at least one of the two Forme cylinder 01; 09 rotates with the speed VEFZ for pre-inking. this Forme cylinder 01; 09 is in an advantageous embodiment, the ink roller 04 employed (in Fig. 21 dashed lines), which also rotates with their speed VEW for coloring.

In the fourteenth embodiment (FIG. 6), both transfer cylinders 02 and 11 rotate at the speed EZZ for retraction of the web 06, while at least one of both forme cylinder 01; 09, preferably both forme cylinder 01; 09, at a standstill commercial vehicle located.

In a group of embodiments (Figure 3), fifteenth to twentieth Embodiment, is connected to the transfer cylinder 02; 11 one of the two pairs 07; 08, a third pair 13 of cylinders 14; 16, for example, from a third forme cylinder 14 and a third transfer cylinder 16, employed or employable. in principle are for this third pair 13, parallel and independent to the operating state of the first Pair 07 or second pair 08 as well as parallel and independent of the Operating conditions of the four-cylinder printing unit 12, all operating states of the first to eighth example possible. The cylinders 14; 16 of the third pair 13 can also mechanically coupled together, or otherwise conventional be operated by technology. The following are some advantageous modes for a Six-cylinder printing unit 17, for example, a Y-17 or λ printing unit 17, described.

In a fifteenth embodiment, two of the forme cylinder 01 rotate; 09; 14 z. B. form cylinder 01 and 09, and the two associated transfer cylinder 02; 11 with production speed PFZ; PÜZ, while the third forme cylinder 14 with Setup speed RFZ turns. In the present example, the associated Transfer cylinder 16 to the first transfer cylinder 02 of the first pair 07th employed and also turns with production speed PÜZ.

In the sixteenth embodiment, the third transfer cylinder 16 is out of the fifteenth embodiment of the first transfer cylinder 02 and the third Shut down cylinder 14 and is at standstill NÜZ.

In the seventeenth embodiment, the third transfer cylinder 16 is out of the fifteenth embodiment according to the sixteenth embodiment parked by the first transfer cylinder 02 and the third form cylinder 14, wherein However, he with the setup speed RZZ, in particular the speed WÜZ for washing the transfer cylinder 02; 11; 16 turns. In the eighteenth embodiment, the three transfer cylinders 02; 11; 16 with the speed EÜZ for retraction of the web 06, while the forme cylinder 01; 09; 14 are at a standstill commercial vehicle.

In the nineteenth embodiment, the three transfer cylinders 02; 11; 16 with the speed EÜZ for retraction of the web 06, while at least two of the Forme cylinder 01; 09; 14 with setup speed RFZ, in particular the speed DWFZ for the Change of the elevator or alternatively with the speed BBFZ for the illustration of the Forme cylinder 01; 09; Turn 14.

In the twentieth embodiment, the three transfer cylinders 02; 11; 16 at standstill NÜZ, while at least two of the forme cylinder 01; 09; 14 with Setup speed RFZ, in particular with the speed BBFZ for the imaging of Forme cylinder 01; 09; Turn 14.

In a group of embodiments (Figure 4), twenty-first to twenty-eighth embodiment, the third pair 13 is not the first or second pair 07; 08 employed, but forms with a fourth pair 18 of cylinders 19; 21, for example, a fourth forme cylinder 19 and a fourth Transfer cylinder 21, a second four-cylinder printing unit 22. This second Four-cylinder printing unit 22, z. B. a second bridge pressure unit 22, together with the first four-cylinder printing unit 12, an eight-cylinder printing unit 23rd Basically, for the pairs 13; 18 or for the second four-cylinder printing unit 22, parallel and independent to the operating state of the first pair 07; 08 or the first Four-cylinder printing unit 12, all operating states from the first to eighth, as well as the ninth to fourteenth embodiment possible.

The cylinders 19; 21 of the fourth pair 18 can also in any other way after conventional state of the art operated, z. B. mechanically coupled together be. The two bridge printing units 12; 22 can each be vertically aligned next to each other or horizontally aligned, where they are rectified or mirrored on an imaginary horizontal, a so-called. H printing unit forming, can be arranged. The following are some advantageous ones Operating modes for the eight-cylinder printing unit 23, described.

In the twenty-first embodiment, all cylinders rotate 01; 02; 09; 11 of the first, For example, vertically oriented lower four-cylinder printing unit 12 with Production speed PFZ; ETI. Also one of the two pairs arranged above 13; 22 in the example, the pair 13, and the transfer cylinder 21 of the fourth pair 18 rotate with production speed PFZ; ETI. The transfer cylinder 02; 11 of the lower Four-cylinder printing unit 12 and the transfer cylinder 16; 21 are each hired each other. The forme cylinder 19 of the fourth pair 18 rotates with one of his Setup speeds RFZ, z. B. with the speed BBFZ for imaging the form cylinder 01; 09; 14; 19. The two left superimposed transfer cylinder 02; 16 turn with the same direction of rotation, for example, counterclockwise, while the two associated transfer cylinder 11; 21 opposite turn, z. B. clockwise. The respective assigned and rotating with production speed PFZ form cylinder 01; 09; 14 rotate counter to the cooperating transfer cylinder 02; 11; 16. Similarly, upper and lower four-cylinder pressure units 12; 22 reversed become.

In the twenty-second embodiment, all the cylinders 14 rotate; 16; 19; 21 of the second, for example, horizontally oriented upper four-cylinder printing unit 22 with Production speed PFZ; ETI. Also, the two arranged below Transfer cylinder 02; 11 of the first and second pair 07 and 08 rotate with Production speed PÜZ. The transfer cylinder 02; 11 of the lower four-cylinder printing unit 12 and the transfer cylinder 16; 21 are each hired. The form cylinder 01; 09 of the first and second pairs 07; 08 are from the Transfer cylinders 02; 11 turned off, wherein at least one of the two form cylinder 01; 09 with one of its set-up speeds RFZ, z. B. with the speed BBFZ for the Illustration of the forme cylinder 01; 09; 14; 19, turns. Likewise, upper and lower Four-cylinder printing units 12; 22 or in the examples left and right arranged pairs 07; 08; 13; 18 are reversed.

In a twenty-third embodiment, the cylinders 14; 16; 19; 21 of the upper four-cylinder printing unit 22 and the two transfer cylinders 02; 11 of the lower four-cylinder printing unit 12 with production speed PFZ, PÜZ, wherein the Transfer cylinder 02; 11; 16; 21 are employed in pairs, while the both forme cylinder 01; 09 of the lower four-cylinder printing unit 12 are turned off and with a set-up time RFZ, in particular the speed.

In a twenty-fourth embodiment, all four transfer cylinders rotate 02 11; 16; 21 with one of their set-up speeds RZZ, z. B. with the speed EÜZ for the Retraction of the web 06, not shown in FIG. 4, while at least one of Forme cylinder 01; 09; 14; 19, in an advantageous embodiment, at least the two Forme cylinder 01; 09; 14; 19 at least one of the two four-cylinder printing units 12; 22 with one of its set-up speeds RFZ, z. B. the speed DWFZ for the change of Printing plate or alternatively with the speed BBFZ for the imaging of the forme cylinder 01; 09; 14; 19, turn. The remaining form cylinder 19; 14; 09; 01 are for example at a standstill commercial vehicle.

In the twenty-fifth embodiment, all but one of two cylinders rotate 01; 02; 09; 11; 14, 16; 19; 21 as in the twenty-fourth embodiment, however, two rotate Form cylinder 01, 09; 14; 19 at least one four-cylinder printing unit 12; 22 with the Speed VEFZ for pre-inking.

In a twenty-sixth embodiment, the cylinders rotate 01; 02; 14; 16; 19; 21 of the three pairs 07; 13; 18 each with production speed PFZ; PÜZ, during the Form cylinder 09 of the second pair 08 with one of its set-up speeds RFZ, z. B. with the speed VEFZ for the pre-inking, and the associated transfer cylinder eleventh with one of its set-up speeds RZZ, z. B. the speed WÜZ for washing the Transfer cylinder 11 rotates. However, the transfer cylinder 11 can be here are also at standstill NÜZ or with the speed AWÜZ for the change of Turn elevator.

In also advantageous alternative of the twenty-sixth embodiment rotates the non-production speed PFZ having forme cylinder 09 with the speed DWFZ for changing the printing form or, in the case of a direct to be imaged Form cylinder 09, with the speed BBFZ for imaging.

In a twenty-seventh embodiment, all four are Transfer cylinder 02; 11; 16; 21 at standstill NÜZ, while the two form cylinder 01; 09; 14; 19 at least one of the two four-cylinder printing units 12; 22 with Setup speed RFZ, in particular with the speed VEFZ for pre-inking the Turn printing form. In an advantageous embodiment, all forme cylinders 01 rotate; 09; 14; 19 with the speed VEFZ for the pre-inking of the printing form.

In a twenty-eighth embodiment, a transfer cylinder 02 rotates; 11; 16; 21, z. B. the transfer cylinder 02, with setup speed RZZ, in particular with the Speed WÜZ for washing the transfer cylinder 02, while the associated Forme cylinder 01; 09; 14; 19, z. B. the forme cylinder 01, with one of its set-up speeds RFZ, z. B. with the speed VEFZ for pre-inking rotates. It can be done accordingly of the pair 12 from the first to eighth example but also two or according to the ninth to fourteenth embodiments for the four-cylinder printing unit 12; 22 all four transfer cylinders 02; 11; 16; 21 with one of her Setup speeds RÜZ, z. B. WÜZ for washing, and the associated form cylinder 01; 09; 14; 19 with one of its set-up speeds RFZ, z. B. the speed VEFZ for the Pre-coloring, be operated.

In the examples described are at least those with different speeds rotating cylinder 01; 02; 09; 11; 14; 16; 19; 21; 24; 32 by its own Drive motor driven. In a preferred embodiment, however, all cylinders 01; 02; 09; 11; 14; 16; 19; 21; 24; 32 of the described printing units individually by a own drive motor without drive coupling with another cylinder 01; 02; 09; 11; 14; 16; 19; 21; 24; 32 or inking be driven. The drive motors drive the respective cylinder 01; 02; 09; 11; 14; 16; 19; 21; 24; 32 or the inking then both in setup mode as well as during production.

Of particular advantage is the use of position-controlled and / or variable speed electric motors. This also applies to the drives of the rollers 04, the can either have its own drive motor, or that the roller 04 including inking unit has one of the cylinders 01; 02; 09; 11; 14; 16; 19; 21; 24; 32 independent drive motor on.

LIST OF REFERENCE NUMBERS

01

Cylinder, first; Form cylinder, rotating body

02

Cylinder, second, transfer cylinder, first, rotary body

03

printing unit

04

Roller, ink roller, inking roller, anilox roller, anilox roller, rotary body

05

-

06

Web, substrate web, paper web

07

Couple, first

08

Couple, second

09

Cylinder, forme cylinder, second, rotary body

10

-

11

Cylinder, transfer cylinder, second, rotary body

12

Four-cylinder printing unit, bridge printing unit

13

Couple, third

14

Cylinder, forme cylinder, third, rotary body

15

-

16

Cylinder, transfer cylinder, third, rotary body

17

Six-cylinder printing unit, Y printing unit, λ printing unit

18

Couple, fourth

19

Cylinder, forme cylinder, fourth, rotary body

20

-

21

Cylinder, transfer cylinder, fourth rotation body

22

Four-cylinder printing unit, second, bridge unit

23

Eight-cylinder printing unit, H unit

24

Cylinder, impression cylinder, satellite cylinder, steel cylinder, first, body of revolution

25

-

26

Three-cylinder printing unit, imprinter

27

Five-cylinder printing unit, semi-satellite

28

Seven-cylinder printing unit, imprinter unit

29

Nine-cylinder printing unit, satellite unit

30

-

31

Ten-cylinder printing unit, ten-cylinder satellite

32

Cylinder, impression cylinder, satellite cylinder, steel cylinder, second

33

Two-cylinder printing unit, flexographic printing unit

speeds

PFZ

Production speed, production speed of the forme cylinder

PÜZ

Production speed, production speed of the transfer cylinder

PSZ

Production speed, production speed of the counter-pressure or steel cylinder

PW

Production speed, production speed of the roller

RFZ

Setup speed, setup speed of the forme cylinder

Ruez

Setup speed, setup speed of the transfer cylinder

RSZ

Setup speed, setup speed of the back pressure or steel cylinder

RW

Setup speed, setup speed of the roller

NFZ

Form cylinder is at a standstill, zero speed, zero speed

Nuez

Transfer cylinder is at a standstill, zero speed, speed zero

NSZ

Counter-pressure or steel cylinder is at a standstill, zero speed, Zero speed

northwest

Roller is at a standstill, zero speed, zero speed

DWFZ

Speed, speed of the forme cylinder for changing the printing form

FSBC

Speed, speed of the forme cylinder for imaging

VEFZ

Speed, speed of the forme cylinder for pre-inking the form cylinder

WFZ

Speed, speed of the forme cylinder for washing the form cylinder

TFFZ

Speed, speed of the forme cylinder for the drying of the form cylinder

EFZ

Speed, speed of the forme cylinder for drawing in a web

AWÜZ

Speed, speed of the transfer cylinder for changing the elevator

VEÜZ

Speed, speed of the transfer cylinder for pre-inking

WÜZ

Speed, speed of the transfer cylinder for washing the transfer cylinder

EÜZ

Speed, speed of the transfer cylinder for retracting a train

AWSZ

Speed, speed of the back pressure or steel cylinder for the change the elevator, the pad

WSZ

Speed, counterpressure or steel cylinder speed for washing the transfer cylinder

ESZ

Speed, speed of the counter-pressure or steel cylinder for the Pulling in a train

TFSZ

Speed, speed of the counter-pressure or steel cylinder for the dry running

VEW

Speed, roller speed for pre-inking

WW

Speed, speed of the roller for washing

WLW

Speed, speed of the roller for continued operation

Claims (13)

A printing unit having at least four cylinders (01, 02, 09, 11, 14, 16, 19, 21) which has a first pair (07, 08, 13, 18) of a first forme cylinder (01, 09, 14, 19) and a second transfer cylinder (02; 11; 16; 21) and a second pair (07; 08; 13; 18) of a second forme cylinder (01; 09; 14; 19) and a second transfer cylinder (02; 11; 16; 21), wherein the transfer cylinders (02; 11; 16; 21) cooperate in a pressure-on position, and wherein at least the two cylinders (01; 02; 09; 11; 14; 16; 19; Each driven by a separate drive motor without drive coupling to one of the other cylinders (01; 02; 09; 11; 14; 16; 19; 21) both in the set-up operation and during production, characterized in that at least the specially driven transfer cylinder (02; 11; 16; 21) has a rotational speed (WÜZ) different from a production speed (PUZ) and from a rotational speed zero (NÜZ) for washing the transfer cylinder (02; 11; 16; 21) or for drawing in (EZZ) a web (06), and at the same time the this transfer cylinder (02; 11; 16; 21) associated with the forme cylinder (01; 09; 14; 16) of the same pair (07; 18) one of a production speed (PFZ) and a speed zero (NFZ) different set-up speed (RFZ). Printing unit according to claim 1, characterized in that the two pairs (07; 08; 13; 18) form a four-cylinder printing unit (12; 22). Printing unit according to claim 1, characterized in that the two pairs (07; 08; 13; 18) are formed with a third pair (07; 08; 13; 18) of a third forme cylinder (01; 09; 14; 19) and a third one Transfer cylinder (02; 11; 16; 21) act together and the printing unit as a six-cylinder printing unit (17) is formed. Printing unit according to claim 2, characterized in that two four-cylinder printing units (12; 22) each aligned vertically and arranged side by side, or horizontally aligned and arranged one above the other as eight-cylinder printing unit (23) are executed. Printing unit according to Claim 1, characterized in that the set-up rotational speed (RFZ) of the forme cylinder (01; 09; 14; 19) is equal to a rotational speed (DWFZ) for a change of a printing forme on the forme cylinder (01; 09; 14; 19). Printing unit according to Claim 1, characterized in that the set-up rotational speed (RFZ) of the forme cylinder (01; 09; 14; 19) is equal to a rotational speed (BBFZ) for imaging the forme cylinder (01; 09; 14; 19). Printing unit according to claim 1, characterized in that the set-up rotational speed (RFZ) of the forme cylinder (01; 09; 14; 19) is equal to a rotational speed (VEFZ) for a pre-inking of the forme cylinder (01; 09; 14; 19). Printing unit according to Claim 1, characterized in that the set-up rotational speed (RFZ) of the forme cylinder (01; 09; 14; 19) is equal to a rotational speed (TFFZ) for dry-running the forme cylinder (01; 09; 14; 19). Printing unit according to claim 1, characterized in that all the cylinders (01, 02, 09, 11, 14, 16, 19, 21) of the printing unit are each driven by their own drive motor. Printing unit according to claim 1, characterized in that the drive motors are designed as position-controlled electric motors. Printing unit according to claim 1, characterized in that the drive motors are designed as speed-controlled electric motors. Printing unit according to claim 1, characterized in that the production speed (PFZ; PÜZ) can be determined on the basis of a desired peripheral speed (PFZ; PÜZ). Printing unit according to claim 1, characterized in that the set-up speed (RFZ) can be determined on the basis of a desired peripheral speed (RFZ).

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