EP1742793A1

EP1742793A1 - Offset printing group pertaining to a printing machine for printing newspapers

Info

Publication number: EP1742793A1
Application number: EP05740335A
Authority: EP
Inventors: Burkard Otto Herbert; Lothar Franz Hohmann; Bernd Kurt Masuch; Kurt Johannes Weschenfelder
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2004-05-04
Filing date: 2005-04-29
Publication date: 2007-01-17
Anticipated expiration: 2025-04-29
Also published as: JP4489807B2; DE102004033912A1; ATE460277T1; DE102004033912B4; JP2007536134A; EP1742793B1; WO2005108078A1

Abstract

The offset printing group (13) comprises a printing cylinder (16) and a transfer cylinder (17). The length (L17) of the transfer cylinder in the axial direction corresponds to at least six widths of newspaper pages. There are two blankets (21) next to each other on the envelope surface of the transfer cylinder. The width of these blankets in the axial direction corresponds to three lengths of newspaper pages.

Description

description

Offset printing units of a printing press for newspaper printing

The invention relates to offset printing units of a printing press for newspaper printing according to the preamble of claim 1 or 4.

DE 25 28 008 A1 shows a printing press for a direct printing process with forme cylinders which can be equipped with six printing plates in the axial direction and with two printing plates in the circumferential direction, and with counter-pressure cylinders which can be occupied with a printing felt in the axial direction and three in the circumferential direction. Both the side-by-side printing plates and the side-by-side printing felts are offset from one another in the circumferential direction.

DE 2422 696 C2 shows a six-plate-wide satellite printing unit with offset printing units (nine or ten cylinders), the two middle ones of six printing plates arranged side by side in the axial direction being offset on the forme cylinder in the circumferential direction.

DE 41 28 797 A1 discloses a triple-width web-fed rotary printing press with two folding formers arranged on two different levels one above the other.

A folding structure is known from US Pat. No. 4,671,501 A, two folding formers being arranged one above the other, the webs being cut lengthwise in front of a third former after passing through idler rollers, the partial webs being rotated through 90 ° over a third former and then being combined into two strands can be fed to both funnels arranged one above the other. EP 10 72551 A2 discloses a folding structure with two groups of three formers, each of which is vertically offset from one another.

In WO 97/17200 A2, a folding structure is known, according to which cut partial webs, which are offset transversely to one another, are fed to different formers. The horizontally next to each other are z. T. vertically staggered.

EP 12 38 935 A2 discloses a longitudinal cutting device for variable cutting widths with upper knives that can be moved in the axial direction and a lower knife shaft with grooves that extend beyond the number of upper knives.

DE 42 04254 A1 discloses a folding structure of a four-page newspaper printing press, two folding hoppers which can be displaced transversely to the web running direction being arranged in a lower former level and a single stationary folding former in one plane above. In one mode of operation, a newspaper with four pages next to one another is produced via the two lower former, and in another mode six pages of a telephone book page are produced next to each other with the three former, the two lower former being moved apart in the latter case.

EP 10 72 551 A2 shows a former arrangement with two groups of three former, wherein the former of one group lie in one plane and, viewed at least in the horizontal direction, overlap in their vertical extent.

From DE 19628 647 A1 it is known to print a web with panoramic printed pages, i. H. printing on two newspaper pages without interruption.

DE 100 16 409 A1 discloses in connection with double-wide printing units a transfer cylinder, which has two blankets side by side. In addition to single and double width cylinders, triple width cylinders are also mentioned.

The invention has for its object to provide offset printing units of a printing press for newspaper printing.

The object is achieved by the features of claim 1 or 4.

The advantages that can be achieved with the invention are, in particular, that an inexpensive and highly productive construction of a web-fed rotary printing press is made possible for the safe production of different product formats.

This is particularly useful for a six page machine. B. made possible by two side-by-side, three-sided wide rubber blankets. The different-sized tracks, e.g. B. Material webs are each driven in the center of the transfer cylinder, so that the joint of the two blankets comes to rest on the middle double page in the area of the longitudinal fold in the unprinted area.

It is particularly advantageous if one or more devices of guiding and / or processing elements interacting with the web can be variably adjusted to the different web width. These are, for example, pressure rollers in the infeed unit, catching rollers of a catching device, knives of a longitudinal cutting device, pressure rollers of a pulling group and / or folding formers of a folding structure arranged next to one another. The web is advantageously guided through the machine symmetrically to the center of the printing press - that is, for example, centrally to the width of the cylinder. In a preferred development, an average is arranged in said plane of symmetry in the case of an odd number of guiding and / or machining elements. This can then be in the transverse direction Transport direction should be fixed, while the outer guide and / or processing elements should be movable transversely to the transport direction and thus should be designed to be adjustable to the web width.

In the case of a triple-width printing press, there are also advantages in that, compared to a double-width printing press, the production reliability is considerably increased with the same target thickness of a product that can be achieved. If the number of printing units is retained, the output of the printing press or of each printing unit can be increased by 50%. The number of reel changers (investment), the frequency of reel changes (production security) and the set-up time when drawing webs (cycle times) can be reduced compared to a double-wide press for the same product thickness.

In an advantageous embodiment, the printing units are designed as nine-cylinder satellite printing units, which on the one hand results in high precision in the color register and on the other hand results in a low-vibration design. The design as a satellite printing unit is also advantageous because, when printing different web widths in the rubber-to-rubber printing unit, direct contact zones without paper web are available for at least one web width. As is well known, this would lead to greatly changed funding behavior, which in some cases can cause significant register deviations and wrinkles.

Vibrations are also reduced by the advantageous arrangement, design and attachment of elevators on the cylinders. On the one hand, openings on the lateral surfaces are minimized in the circumferential direction. Furthermore, at least on the transfer cylinder, the openings can be arranged so as to be alternately offset in the circumferential direction in such a way that, at least over a section length, a closed outer surface always interacts with the forme or satellite cylinder. The symmetrical assignment to the width of the transfer cylinder with only two three-page width elevators is particularly advantageous. In contrast to the previously customary three two-page width printing blankets, printing can be carried out with different web widths without having to change the printing blanket beforehand.

The drive of the satellite cylinder (s) that is mechanically independent of the cylinder pairs has particular advantages with regard to the possibility of variable operation. For example, set-up, e.g. B. a flying change of printing form or washing. Conversely, a path can be drawn in while other cylinders or pairs of cylinders are stationary or are undergoing a set-up program. It is also advantageous if rubber blankets with positive or negative promoting properties are present to operate the satellite cylinder with a surface speed that is different from that of the other cylinders.

In an advantageous embodiment, a superstructure of the printing press has at least one longitudinal cutting device with at least five knives spaced apart from one another transversely to the paper running direction.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

Show it:

1 is a side view of a web-fed rotary printing press;

2 shows a schematic front view of a printing unit;

3 shows a schematic plan view of a printing unit; 4 shows a schematic illustration of cylinders in perspective view with the product to be processed;

5 shows a former group with wide a) and narrow b) web;

6 shows an assignment of the printing unit cylinders in newspaper printing with a first format;

7 shows an assignment of the printing unit cylinders in newspaper printing of a second format;

8 shows an occupancy of the forme cylinder in newspaper printing of a second format with panorama printing forms;

9 shows an assignment of the forme cylinder when printing with asymmetrical division;

10 shows a further assignment of the forme cylinder when printing with asymmetrical division;

11 shows a schematic illustration of a three-hopper production, straight ahead, for variable web widths;

12 shows a schematic illustration of a four-hopper production, offset, for variable web widths;

13 shows a schematic top view of a production in a special tabloid format;

FIG. 14 shows a schematic front view of the production according to FIG. 13; 15 shows a schematic top view of a production, straight ahead, in a special tabloid format;

FIG. 16 shows a schematic front view of the production according to FIG. 15;

17 shows a schematic top view of a production in a special format with plow fold;

18 shows a schematic plan view of a further production in a special format with plow fold;

19 an elevator in perspective view;

20 shows a holding element in the channel of a forme cylinder;

21 shows a slightly vertically offset former arrangement;

22 shows a former with removable edge areas;

23 shows a schematic illustration of shutters in the dampening unit;

24 shows a schematic illustration of a reel changer;

25 shows a first exemplary embodiment for a train group;

26 shows a second exemplary embodiment for a train group with a wide a) and a narrow b) track; 27 shows an exemplary embodiment for a longitudinal cutting device of wide a) and narrow b) web;

28 shows a first exemplary embodiment for a turning device with a) wide and narrow b) web;

29 shows a second exemplary embodiment for a turning device with a) wide and narrow b) web;

30 shows two variants a) and b) of a machine concept with a rotated fold structure;

31 shows a machine concept with two sections;

32 shows a folding structure with a folding apparatus;

33 shows a schematic illustration of a four-page newspaper printing unit when printing with a wider (a) and a narrower (b) web;

34 shows a further exemplary embodiment of a printing press;

35 shows a further exemplary embodiment of a printing press;

36 shows a further exemplary embodiment of a printing press.

The web-fed rotary printing press, in particular newspaper printing press, shown by way of example in FIG. 1 has a left and a right section, each with at least two printing towers 01. The printing towers 01 have printing units 02 which, for. B. at least three times wide, ie for the pressure of six axially next to each other arranged newspaper pages are executed. The printing units 02 are designed as satellite printing units 02. The advantageous embodiment of the printing units 02 as a nine-cylinder satellite printing units 02 ensures a very good registration or a low fan-out. The printing units 02 can, however, also be used as ten-cylinder satellite printing units 02 or, if appropriate, also as printing units operable in rubber-against-rubber printing, such as, for. B. several bridge printing units or an H-printing unit 02 can be executed. The printing units 02 are web 03, z. B. webs 03 of rolls, not shown, in particular using roll changers 05 via so-called infeed units 10 (only represented once in FIG. 1). In this case, more roll changers 05 and feed mechanisms 10 can advantageously be provided than printing towers 01.

Downstream of a web 03 passing through the printing towers 01 or printing units 02, here above the printing towers 01, a superstructure 04 is provided in each section, in which the web 03 or webs 03 cut on longitudinal cutting devices 06, partial webs may be offset by turning devices 07 and / or overturned, can be aligned with one another in the longitudinal register by means of the register devices 08 only indicated in FIG. 1 and can be guided one above the other. Downstream in the web running direction, the superstructure 04 has at least one so-called harp 09 with a number of superposed ones, the webs 03 or partial webs 03a; 03b; 03c perform harp or overrun rollers. The harp 09 determines the funnel entry of the superimposed webs 03 or partial webs 03a; 03b; 03c. The lanes 03 or partial lanes 03a; 03b; 03c a change of direction and are then combined either as one strand or as several strands and fed to at least one folding structure 11.

In the example, two folding structures 11 are arranged between the sections, which z. B. each arranged on two different levels one above the other. However, the printing press can only be a common one between the sections arranged fold structure 11, or have only one section and an associated fold structure 11. The respective fold structure 11 can also be designed with only one level of formers. One or more folders 12 are assigned to each folder structure 11.

The printing unit 02 has several, in the example four, printing units 13, by means of which ink can be applied to the web 03 from an inking unit 14 via at least one cylinder 16 designed as a forme cylinder 16 (FIG. 2). In the present example for an embodiment of the printing unit 02 as a satellite printing unit 02, the printing unit 13 is designed as an offset printing unit 13 for wet offset and has, in addition to the inking unit 14, a dampening unit 20 and a further cylinder 17 designed as a transfer cylinder 17. The transfer cylinder 17 forms a pressure point with a pressure cylinder 18 forming an abutment. Preferably, as shown in the example in FIG. 2, the printing cylinder 18 is designed as a satellite cylinder 18, which forms at least one further printing unit 13 with at least one further transmission cylinder 17 and, in the printing position, a further printing points. The printing cylinder 18 could, if the printing units 13 were designed as a double printing unit in rubber-against-rubber printing, possibly. also be designed as a transfer cylinder. The same parts are given the same reference numerals, unless it is necessary to distinguish them. However, there may be a difference in the spatial position and remains in the case of the assignment of the same reference symbols i. d. R. disregarded.

In an advantageous embodiment, the inking unit 14 has an ink fountain 15 which extends over six printed pages. In another embodiment, three ink fountains 15, each approximately two printed pages wide, are arranged side by side in the axial direction. The dampening unit 20 is designed in an advantageous embodiment as a four-roller spray dampening unit 20.

In a first embodiment, the forme cylinder 16 has, for. B. a range between 850 and 1,000 mm, in particular from 900 to 940 mm. The scope is e.g. B. to accommodate two standing pages, z. B. newspaper pages in broadsheet format, by means of two elevators 19, z. B. flexible printing forms 19, formed. The printing formes 19 can be mounted on the forme cylinder 16 in the circumferential direction and, in the embodiment shown in FIG. 3, can be replaced individually as a single printing plate equipped with a printing side in the axial direction.

The length L16 of the usable bale of the forme cylinder 16 in the first embodiment is, for. B. 1,850 to 2,400 mm, in particular 1,900 to 2,300 mm and is in the axial direction for receiving z. B. at least six adjacent printed pages, in particular newspaper pages of different formats, eg. B. in broadsheet and a different format, dimensioned (see Fig. 3, sections A to F). It is u. a. Depending on the type of product to be manufactured, whether only one print page or several print pages are arranged next to one another in the axial direction on a printing form 19.

In a larger version, the forme cylinder 16 z. B. a circumference between 980 and 1,300 mm, in particular from 1,000 to 1,200 mm. The length L16 of the usable bale is z. B. 1,950 to 2,500, advantageously 1,950 to 2,400 mm, in particular 2,000 to 2,400 mm. The assignment corresponds to the above. Execution.

The transfer cylinder 17 in the first embodiment also has a scope z. B. between 850 and 1,000 mm, in particular from 900 to 940 mm. The length L17 of the usable bale of the transfer cylinder 17 is z in the first embodiment. B. also 1,850 to 2,400 mm, in particular 1,900 to 2,300 mm.

He is in the longitudinal direction side by side with only three-sided width elevators 21, z. B. blankets or blankets 21, occupied (sections ABC and EFG). They extend in the circumferential direction essentially around the full circumference. The rubber blankets 21 are the Vibration behavior of the printing unit 13 in the operating case favorably influencing in the circumferential direction, for. B. 180 °, offset from each other (Fig.3).

In the larger version, the transfer cylinder 17 z. B. a circumference between 980 and 1,300 mm, in particular from 1,000 to 1,200 mm. The length L17 of the usable bale is z. B. 1,950 to 2,500, advantageously 1,950 to 2,400 mm, in particular 2,000 to 2,400 mm. The assignment with elevators 21 corresponds to the first embodiment.

Diameter of bales of cylinders 16; 17 are in the first o. G. Execution z. B. from 270 to 320 mm, in particular from about 285 to 300 mm. In the second above Execution is the diameter of bales of cylinders 16; 17 z. B. from about 310 to 410 mm, in particular from 320 to about 380 mm. A ratio of a usable bale length of cylinders 16; 17 to their diameter should be 5.8 to 8.8, z. B. at 6.3 to 8.0, in a broad version in particular at 6.5 to 8.0.

As length L16; L17 of the usable bale is to be understood here as the width or length of the bale which is used to accommodate lifts 19; 21 is suitable. This corresponds approximately to a maximum possible web width of a web 03 to be printed. Relative to an entire length of the bale of the cylinders 16; 17 would be L16 to this length; L17 of the usable bale, the width of any existing bearer rings, of any grooves and / or of any surface areas that may be present, which z. B. must be accessible for the operation of clamping and / or clamping devices.

In an advantageous embodiment, the satellite cylinder 18 also essentially has the dimensions and ratios mentioned, at least of the assigned transmission cylinder 17. As already mentioned above, the printing press is designed for the production of different product formats, ie the printing of webs 03 of different widths. This does not mean a different width due to part-width webs, as would be the case with "half", "third", "two-third wide" webs of the same base web. With the different web width, there is a difference with the same number of possible pages Product format.

Forme and transfer cylinder 16; In a particularly advantageous embodiment, 17 have the occupancy shown in FIG. 3 with the elevators 19; 21 on. 4 shows a particularly advantageous arrangement of channels 27; 36; 37 for fastening the elevators 19; 21 shown. On the forme cylinder 16 two channels 27 or channel openings 28 (openings 28) which are continuous over the effective length of the forme cylinder 16 and are 180 ° apart in the circumferential direction, and on the transfer cylinder 17 two channels which are each continuous over half the effective length and 180 ° to one another in the circumferential direction offset channels 36; 37 or channel openings 38; 39 (openings 38; 39). The channels 27; 36; 37 are only shown in the form of slots in FIG. 4 for inserting the ends of the elevator, but can, as explained in more detail below, open inside to accommodate a corresponding clamping and / or tensioning device.

In Fig. 4 this is a form and a transfer cylinder 16; 17 having printing unit 13 for printing a variable web width is shown schematically together with a fold structure 11 described below and two web widths. In a first operating mode, a web 03.1 with a first width b1 for printing with a first printing page format F1 and in a second operating mode a web 03.2 with a second width b2 for printing with a smaller, second printing page format F2 can be printed, and wherein the transfer cylinder 17 has a width in the axial direction of at least six newspaper page widths of the larger printing page format F1, and two printing blankets side by side on its circumference in the axial direction which has a width in the axial direction of three newspaper page widths of at least the smaller format F2, z. B. print page format F2 - but better of the larger format F1, z. B. Print page format F1 - have.

A page number of newspaper pages viewed in the axial direction is, for. B. in the first mode (newspaper printing, F1) and the second mode (newspaper printing, F2) is the same. It is preferably six pages of the corresponding format F1; F2.

The larger width b1 is suitable for printing six newspaper pages arranged next to one another in the first format F1 and is, for. B. at 1,800 to 2,500, advantageously at 1,900 to 2,400 mm, in particular at 1,900 to 2,200 mm. The smaller width b2 is suitable for printing six newspaper pages arranged side by side in the second format F2 and is, for. B. at 1,750 to 2,100, advantageously at 1,750 to 2,050 mm, preferably between 1,850 mm and 1,950 mm, but with b1> b2. The possible widths for newspaper printing are not to be applied to the two mentioned, but to any width or format in between. I.e. in principle, all webs 03 of various widths (or corresponding newspaper formats) are variable, which z. B. from 1,750 mm to 2,400 mm, at least from 1,850 and 2,200 mm.

An imaginary printing machine central axis M is also indicated in FIGS. 3 and 4. The two elevators 21 are arranged symmetrically with respect to this printing machine center axis M. The train 03.1; 03.2 passes through the printing units 13 regardless of the width b1; b2 symmetrical to this printing machine central axis M.

In at least one of the operating modes, the forme cylinder 16 of the printing unit 13 carries z. B. one in the axial direction over at least three newspaper page widths of the currently relevant format F1; F2-reaching printing form 19 "(see below). This is then, for example, side by side with printed images of three newspaper pages or one provided a total of three newspaper pages with the corresponding printed image, in particular exposed. There is also the former tip of a middle one of three folding formers 41; 42; 43 of the funnel structure 11 in this printing machine central axis M (see below).

Fig. 5 shows schematically the situation for a wide web 03.1 (Fig. 5a) and a narrow web 03.2 (Fig. 5b), the main cutting lines S1 and S2 for the two different product widths (web widths) are also shown. “Main cutting lines” are understood here to mean the longitudinal cuts which the web 03 separates in an alignment between two adjacent former hoppers 41; 42; 43, so that the partial webs formed can only be guided over the adjacent former hoppers 41; 42; 43. The additions “. 1 "and" .2 "(in S1.1; S2.1; S1.2; S2.2) express here that they are each a first and a second position of the respective one that is different from the first position and transverse to the transport direction Main cutting line S1; S2 corresponds to the two different formats F1; F2 of the product or widths b1; b2 of the webs 03.1; 03.2. The longitudinal cuts along the main cutting lines S1 and S2 can be made by means of the longitudinal cutting device 06 or one mentioned in the context of FIG comparable longitudinal cutting device, not shown in FIG. 1, be produced before the ^" funnel inlet. A particularly advantageous embodiment of a longitudinal cutting device (06; 65) suitable for this is set out below.

Also shown in FIGS. 5 to 10 are here with F41; F42; F43 designated fold planes, which the symmetry planes of the respective former 41; 42; 43 and in which, if appropriately designed, the funnel tips lie. It can be seen here that a distance A1 between the fold planes F41 and F42 and a distance A2 between the fold planes F42 and F43 depend on the width b1; b2 of the course 03.1; 03.2 and / or the current print page format F1; F2 and / or the type of assignment with printed images (symmetrical / asymmetrical) varies. These varying distances A1; A2 by moving the outer former 41; 43 reached, the middle former 42 remains stationary. Subsection lines S4; S5 (but not shown in FIGS. 5 to 12) could, for example, in addition to the above-mentioned main cutting lines S1; S2 may be provided in the folding plane F41, the folding plane F42 and / or the folding plane F43, in which case, in the case of the secondary cut, a multi-layer product, loosely superimposed on the back, is cut open at the back (see tabloid production Fig. 13 to 16 and special format with Plow Palatinate Fig. 17 and 18).

6 to 10 are advantageous assignments and configurations of the elevators 19; 21, in particular the printing forms 19, for the wider and the narrower web 03.1; 03.2 set out. The elevators 19; 21, however, do not correspond to a plan view but to a complete development of the respective cylinder 16; 17th

For all of the following explanations relating to FIGS. 6 to 10, the transfer cylinder 17 is equipped in the axial direction side by side with two elevators 21 of the larger format which are three pages wide. In an advantageous embodiment, these two elevators 21 can each extend over the full circumference and either align with their ends (joints in the channel openings 38; 39) or be offset from one another by 180 ° in the circumferential direction (see above). In another embodiment, two elevators 21 can be arranged one behind the other in the circumferential direction, in which case the ends of the two elevators 21 which are each arranged next to one another are aligned with one another. In any case, it is advantageous if the two elevators 21 arranged axially next to one another together extend at least over the length of the transfer cylinder 17, which is required for printing on the wider web 03.1.

6 and 7, a preferred variant for the assignment of the transfer cylinder 17 - namely two elevators 21 each extending over the full circumference - is shown in dashed lines. 8, 9 and 10, the three-sided width is in the axial Direction shown, the version in the circumferential direction, however, left open and can be one of the above variants.

Fig. 6 shows the assignment of the forme cylinder 16 with printing forms 19; 19 'in the operating mode or mode in which it has print images of the larger print page format F1. The web width corresponds to the larger width b1. All (here twelve) printing forms 19 designed as individual printing forms 19 can be arranged. However, combinations of individual printing forms 19 and panoramic printing forms 19 '(exemplarily shown at the bottom right in FIG. 6) can also be present. The latter have a width of several - z. B. two or even three - individual printing forms 19 and either carry a multi-page wide print image (panorama print page) or several single or multi-page wide print images of the first (larger) print page format F1. A distinction is made here between panorama printing form 19 '(19 ") and panorama printing image or printing page: In this sense, a panorama printing form 19' (19") can have individual or panorama printing images. The distances A1 and A2 in FIG. 6 each correspond to twice the width b19 of an individual printing form 19 or the double printing page width bF1 of the larger format F1 or the width b19 'of a panorama printing form 19' or printing image of the larger format F1. The printing forms 19; 19 '; 19 "are preferably designed as planographic printing forms for offset printing.

In contrast to FIG. 6, FIG. 7 shows the assignment of the forme cylinder 16 with printing formes 19 "in the operating mode or mode in which it has print images of the smaller print page format F2. The web width corresponds to the smaller width b2. Here are advantageous embodiments each arranged symmetrically to the printing machine center axis M two panorama printing forms 19 ", each of which has a width of several - e.g. B. two, in particular three - not shown, theoretically required individual printing forms of the smaller format F2 and either as in Fig. 7 several - here three - each impression-wide printing images of the second (smaller) printing page format F2 or as in Fig. 8 one each Wear a multi-page print image and a full-page print image. The forme cylinder 16 in FIG. 7 is equipped with a double circumference (ie two newspaper pages on the circumference) with four, two printing formes 19 ″ which are next to one another on the circumference and two in a row, such as three printing images of the smaller print page format F2 In a simple scope, only two such printing forms 19 "would be provided side by side. In FIG. 8, the printing forms 19 "each have a printed image that is several pages wide and a printed page that is one page wide. However, mixed variants are also possible, but not shown here. The distances A1 and A2 in FIGS. 7 and 8 each correspond to twice the width of a potential one , not shown single-page printing form or twice the printing page width bF2 of the smaller format F2.

Preferably, the printing forms 19 "carrying the smaller printing page format F2 not only have the width of the three printing pages, but also extend to the end of the effective outer surface of the forme cylinder 16. The two printing forms 19" arranged next to one another thus have a width corresponding to the maximum or the larger width b1 of the wider web 03.1. This enables a more uniform transport behavior over the entire effective length L16 of the forme cylinder 16, regardless of the web width just used, and / or reduces the risk of the corresponding elevator 21 running dry in the edge zones when using the narrower web 03.2. The printing forms 19 "then carry the printed images asymmetrically to their width and are exposed asymmetrically during production, for example. The non-printing edge area is 50 to 100 mm.

9 and 10 show the assignment of the forme cylinder 16 to printing form 19 "with three printing pages, which are provided asymmetrically with printing images. Two printing images lying on a printing form 19" (eg format or printing page format F4 and F5) do not have an integer ratio here their width; the section lines S1.x; S2.x are e.g. B. not symmetrical to the printing machine central axis M. The distances A1 and A2 are e.g. B. different from each other. At least in one of the three formers 41 to 43 (here at 42 and 43) the fold plane F41 falls; F42; F43 (here F42; F43) not with the center of the assigned partial web 03a; 03b; 03c (here 03b and 03c) together, so that the resulting longitudinally folded partial strand has unequal leg lengths.

11 shows a web run of a production, with the longitudinally cut partial webs 03a; 03b; 03c; one or more webs 03 printed in a printing tower 01 or in a plurality of printing towers 01; 03 'run straight ahead (without turning) onto the three folding hoppers 41 to 43 arranged next to one another, folded lengthways there and finally fed to the folder 12. The former 41 shown schematically in side view of FIG. 11; 42; 43 has an overall usable leg length which corresponds to at least one sixth of the width b1 of the wider (or widest) web 03.1 (b1 / 6). A strand width is also indicated here, which results in production with the narrower width b2 to b2 / 6.

FIG. 12 shows a representation comparable to FIG. 11, wherein in addition to the three formers 41 to 43, a further form former 44 - in particular laterally to the other three - is arranged. At least one cut partial web 03a to 03c is turned out of the straight line in so-called “4-hopper production”, passed through this fourth former 44 and finally fed to the folder 12 in addition to the other strands. The four former 41 to 44 point each have an overall usable leg length which corresponds to at least one sixth of the width b1 of the wider (or widest) web 03.1 (b1 / 6).

In an advantageous variant, the printing press is in an operating mode for printing six standing printed pages arranged side by side, one as newspaper format F1; F2 trained format F1; F2 (on a correspondingly wide web 03.1; 03.2) and in another mode of operation for the printing of four adjacent printed pages, a format F3 designed as tabloid format F3 or operable. For this purpose, a first exemplary embodiment is given in FIGS. 13 and 14 and a second exemplary embodiment in FIGS. 15 and 16.

In anticipation of that set forth in FIGS. 13 and 14, the fourth former 44 (as an additional former 44) of FIG. B. in a first embodiment of the above. Variant a larger maximum width compared to the former 41 to 43, ie. H. a usable maximum leg length, which corresponds to significantly more than one sixth of the width b1 of the wider (or widest) web 03.1 (b1 / 6) - in particular at least 120% of the sixth of width b1 of the wider web 03.1. In this way, a production (format F3) shown in FIGS. 13 and 14 can optionally be carried out for a newspaper production (format F1; F2).

13, the - in particular six newspaper-wide - form cylinder 16 in the axial direction is again only equipped with two panorama printing forms 19 ", which, however, carry printed images of a tabloid format F3 (and not of a newspaper format). The incoming web 03.3 here has a further one, from the first and second width b1; b2 different width b3. The printed images with their later product length (after transverse fold) lie in the axial direction of the forme cylinder 16 and correspond to a quarter of the width b3 ^{v of} the web 03.3 (b3 / 4) (see FIG. 14) After the transverse fold (not shown), the product width results essentially to a quarter of the circumference U _{FZ of} the forme cylinder (U _FZ / 4) .The width b3 is, for example, smaller than the other two widths b1; b2 and is z. B. at 1,600 to 1,800 mm, preferably between 1,700 mm and 1,750 mm. The printed web 03.3 is here along a main cutting line S3 of the tabloid format (preferably coincides with the printing machine center axis M together) cut longitudinally in the middle, both partial webs 03a; 03b are turned by 90 ° each from a turning bar 46 from the previous transport direction to a long side of the printing press and out of alignment three folding formers 41 to 43, whereupon they are either transverse to the printing machine central axis M via a suitably oriented folding form 44 or - as shown - after repeated Deflection on a further turning bar 46 through 90 ° via the appropriately oriented former 44 to the folder 12. The folding former 44 again has a larger maximum width than the folding former 41 to 43, ie a usable maximum leg length, which is clearly more than one sixth of the width b1 of the wider (or widest) web 03.1 (b1 / 6) - in particular at least 120% of the sixth of the width b1 corresponds to the wider web 03.1 -. In the folder 12, the tabloid product is completed by cross cutting, among other things. The folding former 44 (tabloid format F3) or the group of folding former 41 to 43 (newspaper format F1 and / or F2) is thus used for the optional production of tabloid or newspaper products.

In the second version of the above. Variant (FIGS. 15 and 16), the additional folding former 44 is not arranged next to the machine level, next to the group of folding former 41 to 43, but within the machine alignment, in particular above or below this group. This can be a single folding former 44 arranged in the path of the web 03 or, as shown, two such folding former 44 can preferably be arranged next to one another in the web path such that the two (half) partial webs 03a; 03b or the (half-funnel-wide) partial webs 03a1; each resulting from two further cuts along the secondary cutting lines S4 and S5; 03a2 (exemplarily only for partial web 03a) run straight onto the former 44, d. H. do not necessarily have to be turned. For example, in an operating mode for newspaper production on the group of former hoppers 41 to 43 with a width b1 or b2 of the original web 03.1; 03.2 produces, while in another mode of operation in tabloid production on the former 44 or on the group of former 44 with a width b3 of the original web 03.3 is produced. The above applies to the width of the former 44 and the width b3.

The auxiliary cutting lines S4 and S5 can be produced in the above-mentioned mode of operation (tabloid) in an advantageous embodiment by the same knives (see below) as in the another mode of operation for newspaper printing, the main cutting lines S1 and S2, but correspondingly positioned differently axially. Thus, for example, three knife units arranged axially next to one another are sufficient, the central one in the printing machine center axis M - z. B. viewed in the axial direction stationary - and the two outer in the axial direction are positioned or movable.

17 and 18 show two further variants and modes of operation of the printing press, wherein by means of a web 03, z. B. the wider web 03.1, products in a special format with plow fold - in particular resulting in a tabloid format - can be produced. Thus, the forme cylinder 16 is again equipped with the printing formes 19 "extending over the entire length, each of which has a narrow print image (format F6) in the area near the end face and in the middle area corresponding to FIG. 13 or 15 print images in a tabloid format, e.g. The above-mentioned format F3, with their orientation. The edge areas which have the narrow printed pages (format F6) and which are folded in below in each case by a plow fold, not shown, before the narrower sheet 03.2 or 03.3 which has now been folded in the edge area (originally e.g. sheet 03.1 or 03.2 of a width b1 or b2) is cut longitudinally, for example, along the main cutting line S3 of the tabloid format The two partial webs 03a; 03b that have already been folded in the edge area are now merged into one in the manner of partial webs 03a and 03b from FIG common additional folding former 44 (not shown) or, as shown (FIG. 17), straight on to the group of two additional folding former 44 guided. The above-mentioned preferably applies to the formation of the additional folding former 44.

18 shows a further variant with regard to the varied use of the printing press, with the forme cylinder 16 again being covered in its full length with the two panorama printing formes 19 ″. The cutting line along the line producing the two partial webs 03a; 03b for the two additional folding formers 44 The main cutting line S3, however, does not take place in the printing machine central axis M here but asymmetrical to the forme cylinder 16 and the printed web 03.1. On one side of the forme cylinder 16, for example, there is an outside-in assignment with two pages in tabloid format F3 and one print page in narrower format F6. The longitudinal section for producing the two partial webs 03a; 03b takes place here between the inside of the tabloid printing side and the narrower printing side (format F6) - thus not in the alignment of the printing machine central axis M and also not on the printed web 03 in the area of the joint of the two elevators 21 of the transfer cylinder 17. This partial web 03a is now led to one of the two formers 44. This is done in one embodiment, as shown, by laterally displacing the partial web 03a via two turning bars, not shown, in such a way that either the unprinted area located between the two tabloid printed pages or the middle of the partial web is brought into alignment with the folding plane F44. In a second embodiment, not shown, at least the relevant folding former 44 is designed to be movable transversely to the web running direction and is positioned in such a way that this partial web 03a can be guided straight onto it. The remaining partial web 03b contains, in addition to the printed images of the right printing forms 19 ", the narrow printing images (format F6) of the left printing forms 19" and experiences at least the impact of the two elevators 21 of the transfer cylinder 17 with a plow fold before they are applied to the other of the two formers 44 - especially straight ahead - is led. The second partial web 03b preferably also has a plow fold in the outer area. In the example, print images are in additional special formats F7; F8, which can optionally be arranged together or individually on the aforementioned printing forms 19 ". One special format F8 has a continuous two-tabloid print page length, and the other special format F7 even a three-tabloid print page length.

Thus, as shown, it advantageously carries in at least one of the operating modes of the forme cylinder 16 of the printing unit 03 a printing form 9 "which extends over at least three newspaper page widths. As explained above, in one of the operating modes of the forme cylinder 16 carries two over three in the axial direction Newspaper page widths of the currently relevant format F1; F2-reaching printing forms 19 ". In another operating mode, the forme cylinder 16 of the printing unit 13 then carries, in the axial direction, a plurality of printing forms 19, each extending over a newspaper page width of the currently relevant format F1.

Even in the mode of printing of the larger format F1, triple-wide printing forms 19 "can be arranged on the forme cylinder 16, which are then also provided, in particular illustrated, with printed images of three newspaper pages of the larger format F1.

In at least one of the operating modes, the forme cylinder 16 can be juxtaposed in the axial direction two over two newspaper page widths of the currently relevant format F1; F2-reaching printing forms 19 '; 19 ".

The forme cylinder 16 has, in the embodiment shown, a circumference of two printing pages of the larger newspaper format F1 arranged one behind the other and is circumferentially connected with two printing forms 19; 19 '; 19 ". The ends of printing forms 19; 19 '; 19" which are axially aligned with one another are preferably arranged on the forme cylinder 16 in continuous channel openings 28. The printing forms 19; 19 '; 19 "are then arranged in two channel openings 28 or channels 27 which are offset by 180 ° in the circumferential direction and through one another in the axial direction.

The width b21 of the printing blankets 21 (see FIG. 19) corresponds to z. B. in both modes of operation of the number mentioned - here three - the printed pages of the larger format F1. The two blankets 21 are, for. B. as shown in Fig. 4, with its ends z. B. in the two to each other in the circumferential direction, in particular by 180 °, offset channel openings 38; 39 attached to the circumference of the transfer cylinder 17. The two channel openings 38; 39 are essentially sufficient in the illustrated embodiment over the width of a printing blanket 21 and not over the entire length of the transfer cylinder 17th

In another embodiment, the two channel openings 38 each extend over a width corresponding to two printing blankets 21.

The width b21 of the triple-width printing blanket 21 is e.g. at 900 to 1,250 mm, in particular at 950 to 1,200 mm, preferably between 1,000 mm and 1,100 mm.

A width bl9 "of the triple-width printing form 19" is also e.g. at 900 to 1,250 mm, in particular at 950 to 1,200 mm, preferably between 1,000 mm and 1,100 mm.

In an embodiment not shown, the two printing blankets 21 arranged side by side on the transfer cylinder 17 are aligned in the axial direction with respect to one another and their ends are arranged in a single channel opening 38 which extends over the length of the transfer cylinder 17.

The channel opening 28 and 38; 39 for receiving the printing form ends and / or the printing blanket ends in the area of the lateral surface preferably has a width in the circumferential direction of at most 5 mm, in particular of at most 3 mm.

The elevators 19; 21 on forme and transfer cylinder 16; 17 of the printing unit 13, as shown schematically in FIG. 19, are preferably designed as flexible plates, the elevator 21 designed as a rubber blanket 21 preferably having multi-layered printing blankets 21, e.g. B. as a so-called. Metal printing blanket 21, with an on a dimensionally stable support plate 23 (z. B. metal plate) arranged elastic and / or compressible layer 22 (dashed) is executed (in Fig. 19, the only reference to the metal printing blanket 21 are dashed tied). A plate-shaped printing form 19 or a carrier plate 23 for a rubber printing blanket usually consists of a flexible, but otherwise dimensionally stable material, e.g. B. made of an aluminum alloy, and has two opposite, in or on the cylinder 16; 17 ends 24 to be fastened; 26 with a material thickness of z. B. 0.2 mm to 0.4 mm, preferably 0.3 mm, these ends 24; 26 for training as hanging legs 24; 26 in each case along a bending line in relation to the elongated length I of the elevator 19; 21 by an angle α; are bent between 40 ° and 140 °, preferably 45 °, 90 ° or 135 ° (Fig. J9). A leading end 24 is, for example, at an acute angle α of 40 ° to 50 °, in particular 45 °, and a trailing end End 26 at an angle of 80 ° to 100 °, in particular 90 °, if only a single elevator 21 is applied in the circumferential direction of the cylinder 16, 17, in particular the transfer cylinder 17, the length I of the elevator 21 corresponds almost to the circumference this cylinder 17th

Basically, the folded ends 24; 26 of the elevators 19; 21 now each in a on the circumference of the respective cylinder 16; 17 in the longitudinal direction axially parallel, slot-shaped opening 28; 38; 39 insertable, the ends 24; 26 can be held, for example, by their shape, friction or deformation. However, they can also be additionally fixable by means which can be actuated by spring force, by pressure medium or by a centrifugal force which is effective during operation. The slot-shaped openings 28 for pressure plates 19 arranged side by side in the axial direction on the forme cylinder 16 are in one advantageous embodiment in each case in alignment, for. B. arranged as a continuous slot-shaped opening 28, while the openings 38; 39 for the two rubber blankets 21 arranged next to one another on the transfer cylinder 17 are not continuous, but are offset from one another in the circumferential direction by 180 °.

The following to the elevator ends 24; 26, and to the holding device 29, 31 described in the channel of the forme cylinder 16 in an advantageous embodiment also essentially meets the channel 36; 37 of the transfer cylinder 17 to. Therefore, the corresponding reference numerals in FIG. 20 are also given for the transfer cylinder 17 in brackets. In an advantageous embodiment of the forme cylinder 16, two channels 27 are provided in the forme cylinder 16, both channels 27 extending continuously in the axial direction of the cylinder 16 at least over the entire length of the six sections A to F in the bale (see FIG. 3). They are in the circumferential direction of the cylinder 16 z. B. offset from each other by 180 °. Below a lateral surface 30 inside the cylinder 16; (17) arranged, e.g. For example, as shown in FIG. 20, channels 27; (36; 37) have at least the length of the six sections A to F a narrow, slit-shaped opening 28; (38; 39) to the outer surface 30 of the cylinder 16; (17). A slot width s28; (s38; s39) of the opening 28; (38; 39) on the forme cylinder 16; (17) in the circumferential direction is less than 5 mm and is preferably in the range from 1 mm to 3 mm.

The folded ends 24; 26 of the printing form 19; 21 can now be inserted into one of the openings 28, (38; 39) which are axially parallel on the circumference in the longitudinal direction and are, at least the trailing end 26, through one in the channel 27; (36; 37) arranged holding device 29, 31 fixable.

The holding device 29, 31 here has at least one clamping piece 29, for. B. clamping element 29 and a spring element 31 (Fig. 20). The trailing suspension leg 26 (see FIG. 19) which is not shown at right angles and preferably comes on a wall of the opening 28 which is essentially complementary to the edge; (38; 39) to the system and is pressed there by the clamping piece 29 by a force exerted by the spring element 31 on the clamping piece 29. The leading suspension leg 24 (not shown), which is bent at an acute angle (see FIG. 19), preferably comes to a wall of the opening 28 which is essentially complementary to the bending; (38; 39), which forms a hooking edge or nose at an acute angle 'of 40 ° to 50 °, in particular 45 ", for contact with the lateral surface 30. To release the clamping of the trailing end 26 is in the channel 27; (36; 37) an adjusting means 32 is provided which counteracts the force exerted by the spring element 31 on the clamping piece 29 and pivots the clamping piece 29 away from the wall or the end 26.

In an advantageous embodiment, not only one clamping piece 29 is located in each channel 27 of the forme cylinder 16, but several clamping pieces 29 are arranged axially next to one another over the length of the sections A to F in the manner of segments, each with at least one spring element 31. For example, several, e.g. B. six, such clamping pieces 29 are arranged, wherein a one having can be arranged centrally between the clamping elements 29 of each section A to F, here between the third and fourth clamping element 29 of each section A to F. The register stone or register pin is e.g. B. manually displaceable and adjustable in a groove of a base in the axial direction. In a further development (not shown), the register stone can also be actuated via an actuating device, for example an axially guided in a free cavity of the channel 27 or the fitting element. B. a motor-driven threaded spindle, axially movable.

In the embodiment shown, the adjusting means 32 is designed for the forme cylinder 16 in such a way that when actuated, the holding device (s) 29, 31, ie all the clamping pieces 29, are closed or released simultaneously over the length of the sections A to F. In the case of the transfer cylinder 17, this applies to holding device (s) 29, 31 of the respective area ABC or DEF. The actuating means 32 is here for the forme cylinder 16 as extending at least over the length of the sections A to F, and for the transfer cylinder 17 as extending at least over the length of the sections ABZ or DEF in the channel 27; 36; 37 extending and actuatable with pressure medium reversibly deformable hollow body 32, z. B. executed as a hose 32. This hose 32 is arranged according to FIG. 20 with the clamping pieces 29 cooperating in the channel 27 in such a way that it counteracts the self-locking spring elements 31 closing the holding device 29, 31 when actuated. Through the areas, if any It is then passed through register elements.

In a printing unit 02 or cylinders 16; 17 advantageous embodiment is at least two cylinders 16; 17, in particular two forme cylinders 16, at least one of the printing towers 01 each have a device for pressing an elevator 19; 21 to a cylinder 16; 17, in particular a printing form 19 assigned to the forme cylinder 16 (in the following pressing device). This is e.g. B. advantageous if in two corresponding printing units 13 a fast, z. B. flying plate change should be made. In particular, it is advantageous for a quick, safe and exact product change if such a pressing device is assigned to all forme cylinders 16 of a printing tower 01. A corresponding pressing device has z. B. at least six pressing elements, for. B. rolling elements, which on the elevators 19; 21 can be switched on or off individually for each section A to F. In this way, controlled and guided retraction or tensioning and / or detachment or removal of the elevator 19; 21 allows. This also makes it possible to have an end 24; 26 of the elevator 19; 21 in the corresponding channel 27; 36; 37 or the opening 28; 38; 39 to move in or a released end 24; 26 or the partially released elevator 19; 21 hold down in a desired position. The pressing device extends along the cylinder 16; 17 at least in the entire area of sections A to F, i. H. in the area of the bale effective for printing. It can thus be fixed on the lateral surface 30 of the cylinder 16 elevators 19 by at least one pressing element as needed, while one end 24; 26 of an elevator 19 or more elevators 19 is or are released, d. H. is not pressed at this time.

The embodiment of the pressing device described above is particularly advantageous in connection with the embodiment described in FIG. 20 for the common adjusting means 32 which extends over all sections A to F. In this constellation, a single or group-wise mounting, changing and / or removing is also for six printing forms 19 arranged next to one another on the forme cylinder 16 are possible without an increased outlay in terms of actuating devices or supply of operating materials having to take place within the forme cylinder 16. This also considerably simplifies production, assembly and maintenance.

In an advantageous embodiment, the cylinders 16; 17; 18 of the printing unit 02 is driven in such a way that the printing units 13 of the printing unit 02 can each be rotatably driven at least by a drive motor which is mechanically independent of the other printing units 13, both in the setup and in the production operation. In the case of the satellite printing unit 02, the satellite cylinder 18 can also be driven mechanically by a drive motor independently of the assigned printing units 13. These drive motors are preferably controlled as regards their angular position electric motors, for. B. as asynchronous motors, synchronous motors or DC motors. In an advantageous development, between the respective drive motor and the cylinder 16 to be driven; 17; 18 or pair of cylinders 16, 17; 18, 18 at least one gear, in particular at least one reduction gear (such as pinion, attachment and / or planetary gear).

Of particular advantage, the dampening unit 20, in particular as a spray dampening unit 20, has closing elements 48, so-called “shutters” in the edge regions of the possible transmission width, which can optionally be introduced into the spray path in the case of a narrower web 03.2; 03.3. At least one edge region such a closing element 48 is provided, which essentially corresponds, for example, to a width of half the difference between the smaller and larger width b1; b2; b3 of the web 03.1; 03.2; 03.3, which is shown schematically in FIG Between such a spray source 49 and a roller 51 of the dampening unit 20, two such closing elements 48 are provided per edge area, which then together have a width of half the difference between the smaller and the larger area per edge area width b1 intended for printing; b2; b3 of the course 03.1; 03.2; 03.3 have. The spray source 49 can advantageously be designed as a spray bar 49 with spray nozzles or as a brush roller 49. In principle, however, other versions of the spray source are also conceivable.

In the inking unit 14, in particular as a zone inking unit 14, depending on the mode of operation or web to be printed 03.1; 03.2; 03.3 Farm eaters, not shown, of color zones in the peripheral area either either closed in principle or released for image-based control of the amount of color.

As already shown in FIG. 4 ff. And already described above, in addition to the special design and assembly of the forme and transfer cylinder 16; 17 or the configuration of the printing unit 13, the arrangement and design of the group of at least three folding guides 41; 42; 43 as guiding and / or processing elements 41; 42; 43 in the folding structure 11 an important role in the formation of the printing press for different product formats. As symbolized in FIG. 4 by the double arrows in the formers 41 and 43, in an advantageous embodiment the two outer (formers 41; 43) of the three formers 41; 42; 43 transversely to the direction of entry of the partial webs 03a; 03b; 03c movably arranged. The middle former 42 can be arranged fixed to the frame, the former tip preferably lying in the central axis M of the printing press. Under three formers 41; 42; 43 is to be understood here that the formers 41; 42; 43 of this group transversely to the running direction of incoming webs or partial webs 03a; 03b; 03c offset from one another next to one another and viewed at least partially overlapping in the horizontal plane.

In a first structural variant (schematically in FIG. 21), the two outer folding formers 41; 43 slightly offset in the vertical direction to the middle, in However, when viewed horizontally, it is arranged to overlap with the middle former 42 so that if necessary (narrow web 03.2 and corresponding narrow partial webs 03a; 03b; 03c) in their edge region close to the middle former 42, seen in plan view, they can be brought into overlap with the latter. However, the funnel noses are in vertical alignment with one another (shown in dash-dot lines), so that folded strands come to lie on one another. The vertical offset is a maximum of half a funnel height h42.

In a second variant (schematically in FIG. 22), the formers 41; 42; 43 movable (e.g. foldable) or removable extension elements 47 in the respective edge areas, which in the case of the wide web 03.1 (and correspondingly wider partial webs) in the operating position and in the case of the narrow web 03.2 (and correspondingly narrower partial webs) from the effective area are removed. The extensions 47 thus broaden the transport plane of the respective former 41; 42; 43, d. H. that level which is formed by the contact zones of the converging flanks with the web 03. In the former operating position, at least the middle of the former 42 has a width b42.1, while in the second operating position it has a width b42.2. In the second operating position, the effective width is then made narrower by a total amount Δ. The same can accordingly for the two outer former 41; 43 apply. The two outer former 41; 43 can, however, also be formed only on the side facing the middle former 42 by the amount .DELTA. / 2. FIG. 13 shows the wide b41; b42; b43 the former 41; 42; 43 of the group shown without general and without the addition.

5a and 5b show a possible result of a movement of the outer former 41; 43 shown in that they are shown further or closer to the middle spaced. Of course, the width of the former 41; 42; 43 never that of the partial web 03a; 03b; 03c but is only to be understood symbolically in the figures. The fixed width B42.1, which is designed for a fixed-format newspaper print, or the width B42.1, which is not reduced in the case of variable newspaper printing, at least of the middle, but possibly all three, formers 41; 42; 43, is z. B. at 600 to 830 mm, advantageously 630 to 600 mm, in particular at 630 to 730 mm. With folding direction 41; 42; 43 of variable width lies the width B42.2 of at least the middle, but possibly all three, formers 41; 42; 43, e.g. B. at about 580 to about 700, advantageously at 580 to 680 mm, preferably between about 616 mm and 650 mm. With the variable former 41; 42; 43, there is a selectable difference Δ, for example between 100 and 250 mm, in particular between 120 and 200 mm, the widths being selected correspondingly to one another from the value ranges specified above. Half the measure applies to Δ / 2.

The effective width b44 (maximum width in the upper former area) of the additional former 44 is preferably significantly larger than that of the (undiminished) folding former 41; 42; 43 of the funnel group. The broad z. B. a factor of 1.05 to 1.4, in particular 1.1 to 1.3 may be greater than an unchangeable or the maximum width b41.1; b42.1; b43.1 the folding former 41; 42; 43 of the funnel group.

In a variant z. 15, both additional funnels 44 can be designed with a variable width b44, in which case the above-mentioned. Relationships refer to the maximum width b44 of the additional funnel 44.

In an advantageous embodiment, the variable printing press has one or more of the guide and / or processing elements described below on the path of the web 03.1; 03.2; 03.3 through the printing press on:

In an advantageous embodiment of the roll changer 05 (FIGS. 1 and 24) it is provided that support arms 52 can be moved on each swivel axis 54 to each end face of a roll 53 to be unwound, in such a way that it can be moved transversely to the printing machine center axis M. are stored that regardless of the width b1; b2; b3 of the web 03.1 just used; 03.2; 03.3 the roller 53 can be positioned in such a way that the center plane m03 of the raised roller 53 coincides with the printing machine center axis M. The support arms 52, which act here as guide and / or processing elements 52, can be positioned symmetrically and in opposite directions to one another transversely to the printing machine center axis M.

In the representation of guide and / or processing elements described below, z. T. uses the same reference numerals if the assigned parts have the same functionality or even design. As guiding and / or processing tools here and below also cutting, web guiding, web drive and / or web guiding elements, such as. B. pressure rollers, turning bars, slitting knives and / or guide rollers understood.

In addition to or even independently of the design of the other guiding and / or processing elements, a pulling group 56 consisting of pulling roller 57 and a plurality of pressure rollers 58, which can be optionally adjusted thereto, can be inserted in the feed mechanism 10. B. rubber rollers can be provided (Fig. 25). These are grouped symmetrically to the printing machine central axis M in several (at least two) groups and switched in groups for the purpose of switching on and off. In the example, two groups of two and one group of three pressure rollers 58 are provided on each half of the pull roller 57 from the outside inwards. The starting is done, for example, pneumatically from a source, not shown, or electrically. Depending on the mode of operation, when printing on a wide web 03.1 all groups are now placed against the pull roller and when printing on a narrower web, outer groups remain. The pull roller 57 is driven in rotation by a drive motor 59.

In another version of a train group 61 - z. B. following the last printing unit 02 passed through by the respective web 03 or before the funnel inlet - has guide and / or processing elements 62 designed as pressure rollers 62 , which can be positioned symmetrically and transversely to the printing machine center axis M in opposite directions to each other (FIGS. 26a and b). An odd number of pressure rollers 62 is preferably provided, z. B. the middle in the alignment of the printing machine central axis M effective and with respect to a direction transverse to the Tran sports direction is fixed, while all the eccentric pressure rollers 62 are movable transversely to the transport direction and are thus adjustable to the web width. The positioning can advantageously be carried out via at least one threaded spindle 63, which can preferably be driven by a drive motor 64. For the pressure rollers 62 of each of the two sides, a separate threaded spindle 63 having several sections of different thread pitch can be provided or - as shown - a common threaded spindle 63 with several (here two each) different left and right hand threads of different pitches can be provided. During the printing of a wide web 03.1 (FIG. 26a), the pressure rollers 62 provided outside the printing machine center axis M are further out than during the printing of a narrower web 03.2; 03.3. Also in FIG. 26b, the scissor symbols indicate a longitudinal cutting device 06 (in front of the turning devices 07) or 65 (after the turning devices 07 but before the funnel inlet) which may follow the pull group 61.

The longitudinal cutting device 06; 65 again preferably has an odd number of guide and / or processing elements 66, which are designed here as knives 66 and can be positioned symmetrically and transversely to the printing machine center axis M in opposite directions to one another. Again, the central guiding and / or processing element 66 is again effective in the alignment of the printing machine center axis M and fixedly arranged with respect to a direction transverse to the transport direction, while all off-center knives 66 are movable transversely to the transport direction and are thus designed to be adjustable to the web width. The positioning is advantageously carried out as in FIG. 26, the pressure roller 62. Counter knives 67 are preferably also positioned together with the knives 66. While pressing a wide web 03.1 (FIG. 27a), the knives 66 provided outside the printing machine central axis M are further out than when a narrower web 03.2; 03.3. The middle knife remains stationary in the alignment of the printing machine center axis M.

28a and b and FIGS. 29a and b show two possible configurations of the turning device 07, with two guiding and / or processing elements 68 designed as turning bars 68 transverse to an infeed direction of a partial web 03a; 03b; 03c are positioned. 28a and b show parallel, 45 ° inclined turning bars 68 for the lateral displacement of a partial web 03a; 03b; 03c, while FIGS. 29a and b offset two turning bars 68 inclined to the infeed direction by 45 ° and 135 ° for the lateral and falling of a partial web 03a; 03b; 03c shows. The positioning is again advantageously carried out via a threaded spindle as shown in FIG. 26 for the rollers 62. 28a and 29a show their position during the printing of a wide web 03.1 and FIGS. 28b and 29b their position during the printing of a narrower web 03.2; 03.3.

30a and b show an alternative concept for the variable printing press, the webs 03 or partial webs 03a; 03b; 03c are guided to the fold or former assembly 11 by 90 ° from the alignment of the printing machine center axis M. Hopper assembly 11 and folder 12, not shown in FIG. 30, are offset by 90 ° to the printing press shown in FIG. 1. If, as indicated in FIG. 30 by double arrows, three movable turning bars 69 are provided for deflecting, depending on the width b1; b2; b3 of the course 03.1; 03.2; 03.3 a position of the turning bars 69 can be found so that the partial webs 03a; 03b; 03c on three stationary folding formers 71; 72; 73 are feasible. For example, a funnel structure 11 with stationary funnels 71 to 73 can be used, the fixed width of which is in each case at least the width of the partial webs 03a; 03b; 03c corresponds. In Fig. 30a there are partial web-wide turning bars 69 and in Fig. 30b triple width (ie at least six newspaper printed page widths of the larger one Format F1) turning bars 69 provided. FIG. 31 schematically shows the arrangement of two printing press sections, each with a plurality (here two) of printing towers 01 or printing units 02, by means of which, via a respective turning device 07 described in FIG. 30a or b, but only schematically indicated in FIG. 31, on a common hopper structure 11 is produced.

32 shows a folding structure 11 in section. Here, as shown, two groups of essentially the same formers 41; 42; 43 be arranged one above the other, which are either slightly offset vertically (not shown) or are designed with extensions 47 (only indicated for the lower group). Directly in front of each hopper group is at least one hopper feed roller 76 or pull roller 76 driven by a motor 74.

The folder 12 of the printing press is designed for all of the above exemplary embodiments in an advantageous embodiment with seven fields.

The circumference of the transport cylinder 77 corresponds to more than five, in particular seven, section lengths or seven lengths of the signature (“seven-field transport cylinder 77”). On the transport cylinder 77, seven holding devices are inserted in the circumferential direction one after the other at equal intervals in the circumferential surface of the transport cylinder 77, for example Puncture strips with extendable puncture needles arranged (puncture folding apparatus). The holding devices can also be designed as grippers (gripper folding apparatus). Furthermore, seven cutting strips are arranged, which are preferably viewed slightly in the direction of rotation (eg 0.3 to 3 cm) to the position of the Clamping point (gripper folder) or the puncture puncture (puncture folder) are arranged spaced apart on the outer surface of the transport cylinder 77. The circumference of the jaw cylinder 78 also preferably corresponds to more than five, in particular seven section lengths or seven lengths of the signature. Furthermore, seven folding knives are attached to the transport cylinder 77, which are extended each time a gap is reached (depending on the collective or normal operation, each time or several times) between the transport cylinder 77 and a folding jaw cylinder 78 in order to convey the signatures transported on the transport cylinder 77 to the folding jaw cylinder 78 to hand over and fold. For this purpose, the jaw cylinder 78 has an even spacing in the circumferential direction, e.g. B. as many folding flaps (not shown) as the number of folding knives and / or the holding devices on the transport cylinder 77, here in particular seven. The folded products are transferred from the jaw cylinder 78 to a paddle wheel 79 and from there onto a delivery device 81, e.g. B. designed a conveyor belt 81.

A cutting cylinder 82 acting together with the transport cylinder 77 as a cross cutting device can double, i. H. two circumferential knives spaced apart by a section length, or also four times large, d. H. four knives spaced apart by a section length on the circumference.

The conception of the asymmetrically exposed panorama printing forms, in particular together with at least one of several transversely movable folding direction 41; 42; In addition to the six-page width machine (six print images side by side), 43 can also be used on other machines, especially four-page width newspaper presses (four print images side by side). Here, for example, n = 3 print images for the six-page width machine and n = 2 print images for the four-side width machine are arranged next to one another in the axial direction on a printing form 19 ″, in particular asymmetrically. An example is given in FIGS. 33a and b, wherein in 33a of the forme cylinder 16 is occupied with print images of the larger format F1, in which case the four print images can only be arranged on eight individual printing formes 19, only on four panorama printing form 19 '(two side by side and one behind the other) or combined (for example in FIG. 33) combined) The printing forms 19, 19 'preferably cover the entire effective length L16 or the width b1 of the one to be printed larger web 03.1. If the printing unit 13 is not double-circumferential (two newspaper pages in the circumferential direction) but simple, this applies equally to four individual printing forms 19, two panorama printing forms 19 'or mixed.

In the other operating mode with a narrower web 03.2, the forme cylinder 16 now has print images of the smaller format F2. Preferably, the printing forms 19 "are again in the form of panorama printing forms 19", but with two printing pages of the smaller format F2, and yet they still extend essentially over the range of the possible printing length of the wider web 03.1, i.e. H. they have the same width as panorama printing forms 19 'of the larger format F1. As described above, the printing forms 19 ″ are again exposed asymmetrically, for example. As in the above arrangement with three funnels, a funnel construction is also advantageous here, with a distance A1 of the folding planes F42; F43 being changeable in the manner mentioned above.

Then, as shown in FIG. 33, two printing blankets 21, for example, are arranged side by side on the transfer cylinder 17, each of which has a width of two printing pages of a newspaper format F1; F2, in particular the larger newspaper format F1. These can then extend around the full circumference and their ends can be aligned with one another or alternately arranged on the transfer cylinder by 180 °.

It is explicitly pointed out that the following, which is shown for the printing press according to FIG. B. the three newspaper pages wide blankets 21 and / or the three newspaper pages wide printing forms 19 and / or the format variability and / or the described adjustability of one or more of the guide and / or processing elements 41; 42; 43; 52; 62; 66; and / or the satellite design and / or arrangement of channel openings 28; 38; 39 and / or width of channel openings 28; 38; 39 and / or the special arrangement of formers 41; 42; 43; 44 and / or other features not mentioned in this list is advantageously applicable. The same applies to the contents of FIGS. 35 and 36.

Fig. 34 shows a printing machine, in particular in a triple-width version for printing six newspaper pages arranged next to one another, with each folding structure 11 (consisting, for example, of two levels with three folding judges side by side) with printing towers 01; 01a with stacked printing units, in particular satellite printing units. A printing press section equipped essentially in the same way has, for example, two printing towers 01; 01 a, wherein in an advantageous further development at least one of these printing towers 01 in addition to the eight printing points of the satellite printing units 02 two further printing points, e.g. B. in the form of a six-cylinder printing unit 83 or two three-cylinder printing units 83 are assigned. These two additional printing points can, if necessary, also on a printing tower 01 of a printing machine that is detached from the special printing machine according to FIG. 34 in combination with one or more of the above. Features may be beneficial. In a printing tower 01a which has been expanded in this way, either two webs 03 can then be printed in one color on one side and in one color on the other side, or else one web 03 can be printed in four colors on both sides and a second web 03 in one color on both sides. In contrast to ground floor designs (see FIGS. 35, 36), the printing press is designed here in a multi-storey manner in that the printing towers or the respectively lower printing units 02 and the reel changer 05 are not arranged on the same system level. The printing towers 01 are arranged in a plane T above the plane G carrying the roll changers 05. The former are arranged, for example, on a so-called “table”, in particular a concrete table.

The printing machine of FIG. 34 here has three such printing machine sections, with webs 03 from distant printing towers, as marked by an example by ^* 01 of the adjacent printing press section, but lying in front of the next folding structure 11, can be transferred. Each of these from four printing towers 01; 01 a and a fold structure 11 existing section are such. B. five role changer 05 assigned. Depending on the requirements of the desired productions, turning towers with three, four or five turning devices 07 (turning decks) can be provided. A folder 12 (here F1, F2, F3) is arranged downstream of each folder structure 11. 34 also shows a selection of advantageous production options and products. The designation is explained on the basis of the gray production for the web guide shown in line 3:

In the configuration according to line 3, two products (2 x), each with 84 pages (p.), Each with 7 webs (B.) are generated on two folders (here F1 and F3). This takes place here in a broadsheet arrangement (ie standing newspaper pages in the circumferential direction of the forme cylinder 16, and in double production, ie in operation without collecting (unsorted or unsaid). For example, two identical printing forms 19; 19 '; 19 "lie on and thus a double output of products per unit of time is generated per strand, or else two different products can be alternately produced on the strand and correspondingly alternately discharged into two product streams. On the first folder 12 from the left ( F1), for example, first four webs printed in 4/4 printing are guided from the right side, two webs 1/4 and 4/1 printed on the outside left in the printing tower and one web printed 4/4 in the adjacent printing tower Pages on which 72 are printed in four colors (and the rest in one color) (84/72) .Gil applies to the product produced on the other folder (F3) t the same here. The remaining nine rows of the table should be read in the same way. B. in line 6 on two folders (F1 and F3) each from 6 webs (B.) a 72 page (p.) Strong, 60 four-color page product and on a folder (here F2) a 24-page product is produced , In an advantageous embodiment, the offset printing units 13 are at least one of the printing units 02 of a printing tower 11 (e.g., however, all printing units 02; 83 of a printing tower, but advantageously all printing units 02; 83 of an entire printing press section, but in particular all printing units 02; 83 of the printing press ) equipped with three-sided printing forms 19 "and / or three-sided elevators 21 in the embodiment described above or designed to be equipped.

The folding structures 11 have z. B. at least one former level, but advantageously two superimposed former levels with the three adjacent folding formers 41 to 43 (z. B. from Fig. 4 to 16). One or more of these fold structures 11 can advantageously additionally have a lateral additional funnel 44 as shown in FIGS. 12 to 14 (or, if appropriate, an additional funnel level.

Fig. 35 shows a ground level printing press, i. H. Reel changer 05 and printing towers 01; 01a are at essentially the same level E, e.g. B. a ground floor level E. This can result in advantages in terms of construction costs (no basement or a lower height of a building 86 which houses the pressure towers 01; 01a, for example a hall 86) is required. In an outside of the turrets 01; 01a and / or the fold structure 11, the building 86 can then be made considerably lower (as indicated in FIG. 35).

As can be seen in the plan view (lower part of the figure), an additional folding former 44 can be arranged laterally to the group of three former in the illustrated folding structure 11. This can be the case for one of the two or both of the formerly illustrated former levels if these again each have three former formers 41; 42; 43 have side by side. This additional former can have the same width as the other three folding former, but as shown in FIG. 13 can also have a larger width. There can then be a total of seven funnels (two times three plus additional funnels) Product strands (eg so-called "books" are driven and - if the additional hopper has a larger hopper width - a product of greater width is optionally available on the additional hopper. In an embodiment without the laterally arranged additional hopper 44, however, the two hopper levels can also be arranged in the manner shown in FIG. 16 (one level three formers, the other level two wider formers). An option can be an embodiment where two "normal" formers with three side-by-side formers as shown in Fig. 32 are provided, and two additional fold formers 44 in an overlying level (indicated here by dashed lines) in the manner of the two upper former 44 of FIG. 16 are arranged above it.

One or more of the printing towers 01, as referred to here as 01 a, can have additional printing units 83.

36, the web feed from the reel changer 05 takes place from the long side of the machine, ie at a 90 ° angle to the printing machine center plane M. Preferably, the printing press is also constructed here on the ground floor, ie reel changer 05 and printing towers 01; 01 a are arranged on essentially the same level. The roll changer (s) 05 is or are located to the side of the machine, the axis of rotation of the material or paper rolls running essentially parallel to the center axis M of the printing press. After unrolling transversely to the machine, the web now runs at the level of the machine on a deflection element 84, for. B. a guide element 84 in the manner of a turning bar 84, so that its direction of movement is then in the printing machine center plane M. The guide element 84 has a length which, when projected onto the incoming web, corresponds at least to its maximum width. It is preferably inclined at 45 ° to the running direction of the incoming web and to the machine center plane M. In the present case, it has a length whose projection onto the incoming web corresponds to at least six newspaper pages lying side by side. In the case of a 90 ° offset of the roll changer 05, the usable length of the turning bar 84 corresponds at least 1.4 times the maximum web width to be processed in the printing press, ie here at least 1.4 times a web width six newspaper page widths or here at least 8.5 newspaper page widths. Between two printing towers 01, two turning bars crossed with respect to one another can also be provided, which then allow the deflection in one direction and also in the other direction. The two crossed turning bars 84 can then either be loaded with this track either by a reel changer 05, or, as shown, can be acted on simultaneously by two reel changers 05 lying in the same alignment.

With regard to the safe web guiding, an infeed mechanism which adjusts the web tension may be provided before the turning bar 84, but advantageously between the turning bar 84 and entry into the printing tower 01.

The lateral arrangement of the roll changers 05 can again be considered in isolation, but can also develop a particular advantage in connection with one or more of the above-mentioned advantageous features.

LIST OF REFERENCE NUMBERS

01 pressure tower

02 printing unit, satellite printing unit, nine-cylinder satellite printing unit, ten-cylinder satellite printing unit, H-printing unit

03 Material web, web

04 superstructure

05 reel changer

06 slitter

07 Turning device, turning device

08 Register facility

09 harp

10 feed mechanism

11 fold structure, funnel structure

12 folder

13 printing unit, offset printing unit

14 inking unit, zone inking unit

15 color box

16 cylinders, form cylinders

17 cylinders, transfer cylinders

18 impression cylinders, satellite cylinders

19 Elevator, printing form, printing plate, single printing form

20 dampening system, spray dampening system

21 Elevator, printing blanket, rubber blanket, metal printing blanket

22 layer

23 carrier plate

24 end, leading, hanging leg 25

26 end, trailing, hanging leg Duct opening, duct opening clamping piece, gill element lateral surface spring element adjusting means, hollow body, hose

Channel channel opening, channel opening, slot opening, channel opening, slot

Folder, guide and / or processing element Folder, guide and / or processing element Folder, guide and / or processing element Folder, additional folder former

Turning bar extension element closing element spray source, spray bar, brush roller

Roller support arm, guide and / or processing element roller swivel axis Traction group traction roller pressure roller drive motor

Tension group pressure roller, guide and / or processing element threaded spindle drive motor slitting device knife, guide and / or processing element counter knife turning bar, guide and / or processing element turning bar

Folding funnel Folding funnel Folding funnel drive motor

Hopper inlet roller, pull roller transport cylinder, jaw cylinder, paddle wheel

Delivery device, conveyor belt cutting cylinder

Material web, web, partial web 03b material web, web, partial web

03c Material web, web, partial web

03a1 material web, partial web

03a2 material web, partial web

03.1 Material web, web, wide

03.2 Material web, web, narrow

03.3 Material web, web

19 'AAuuffzzuugg ,, D printing form, single printing form, panorama printing form

19 "AAuufzzuugg ,, D printing form, single printing form, panorama printing form

A section

B section

C section

D section

E section

F section

M printing machine central axis

A1 distance

A2 distance

F1 format, print page format, newspaper format

F2 format, print page format, newspaper format

F3 format, tabloid format

F4 format, print page format

F5 format, print page format

F6 format F7 special format

F8 special format

F41 fold plane

F42 fold plane

F43 fold plane

S1 main cutting line

S2 main cutting line

S3 main cutting line

S4 secondary cut lines

S5 secondary cut lines

L16 length

L17 length

I length (19; 21)

b1 width, web width b2 width, web width, smaller b1 b3 width, web width, smaller b1 and b2 b19 width b19 'width b21 width

h42 funnel height

m03 center plane m19 center axis s28 slot width s38 slot width s39 slot width

bF1 print page width bF2 print page width

U _FZ scope (16)

α angle β angle α 'angle corresponding designation of a second web or partial web

Claims

Expectations

1. offset printing unit (13) of a printing press for newspaper printing with a form and a transfer cylinder (16; 17), wherein the transfer cylinder (17) has a length (L17) in the axial direction of at least six standing newspaper page widths, characterized in that on the outer surface of the transfer cylinder (17) in the axial direction, only two printing blankets (21) are arranged side by side, each of which has a width in the axial direction of three standing newspaper pages.

2. Offset printing unit (13) according to claim 1, characterized in that at least two printing forms (19; 19 ") are arranged next to one another in the axial direction on the lateral surface of the forme cylinder (16), at least one of the at least two printing forms (19") has a width in the axial direction of three standing newspaper pages.

3. offset printing unit (13) according to claim 1, characterized in that on the lateral surface of the forme cylinder (16) in the axial direction six printing plates (19) are arranged side by side, each having a width in the axial direction of a standing newspaper page.

4. Offset printing unit (13) of a printing press for newspaper printing with a form and a transfer cylinder (16; 17), wherein the transfer cylinder (17) has a length (L17) in the axial direction of at least six standing newspaper page widths, characterized in that on the outer surface of the forme cylinder (16), six printing formes (19) are arranged side by side in the axial direction, each of which has a width in the axial direction of one standing newspaper page.

5. offset printing unit (13) according to claim 4, characterized in that on the outer surface of the transfer cylinder (17) in the axial direction next to each other only two printing blankets (21) are arranged, each having a width in the axial direction of three standing newspaper pages.

6. offset printing unit (13) according to claim 1 or 4, characterized in that in a first operating mode a web (03.1) with a first width (b1) for printing with a first print page format (F1) and in a second operating mode a web (03.2 ; 03.3) with a smaller width (b2; b3) for printing with a smaller, second printed page format (F2; F3) is guided through the printing unit (13).

7. offset printing unit (13) according to claim 6, characterized in that the transfer cylinder (17) has a length (L17) in the axial direction of at least six standing newspaper pages of the larger print page format (F1), and only two next to each other on its circumference in the axial direction Printing blankets (21) which each have a width in the axial direction of three standing newspaper pages of at least the smaller printing page format (F2).

8. offset printing unit (13) according to claim 6, characterized in that in at least one of the operating modes of the forme cylinder (16) of the printing unit (13) in the axial direction over at least three standing newspaper pages of the currently relevant format (F1; F2) reaching printing form ( 19) carries.

9. offset printing unit (13) according to claim 2 or 4, characterized in that the three-sided printing form (19 ") side by side with printed images of three newspaper pages, in particular exposed.

10. offset printing unit (13) according to claim 2 or 4, characterized in that the three-page printing width printing blanket (21) has a width of three print images located side by side on the lateral surface of the forme cylinder (16) in the newspaper pages.

11. Offset printing unit (13) according to claim 6 and one of claims 1 or 5, characterized in that the width of the printing blankets (21) in both modes of operation corresponds to three printing pages of the larger format provided (F1).

12. Offset printing unit (13) according to claim 1 or 5, characterized in that the two printing blankets (21) arranged next to one another on the transfer cylinder (17) are offset in the circumferential direction from one another, in particular offset by 180 ".

13. offset printing unit (13) according to claim 1 or 5, characterized in that the two printing blankets (21) with their ends in two mutually in the circumferential direction, in particular by 180 °, offset channel openings (38; 39) on the circumference of the transfer cylinder (17) are attached.

14. offset printing unit (13) according to claim 2, characterized in that the two channel openings (38; 39) each extend across the width of the two printing blankets (21).

15. offset printing unit (13) according to claim 12, characterized in that the two channel openings (38; 39) each extend across the width of a printing blanket (21).

16. Offset printing unit (13) according to claim 1 or 5, characterized in that the two printing blankets (21) arranged next to one another on the transfer cylinder (17) are axially aligned with one another and are arranged with their ends in a continuous channel opening (38; 39) ,

17. offset printing unit (13) according to claim 16, characterized in that on the transfer cylinder (17) in the circumferential direction one behind the other two such aligned pairs of printing blankets (21) are arranged, the total of four printing blankets (21) with their ends in two 180 ° offset in the circumferential direction, through channel opening (38; 39) are arranged.

18. offset printing unit (13) according to claim 1, 5 or 17, characterized in that the printing blankets (21) as a multilayer printing blankets (21) with at least one elastic layer (22) on a substantially dimensionally stable support plate (23), in particular as a metal printing blanket (21) are formed with a rubber layer located on a metal plate.

19. offset printing unit (13) according to claim 6, characterized in that in at least one operating mode of the forme cylinder (16) in the axial direction next to each other carries two over at least three newspaper page widths of the currently relevant format (F1; F2) reaching printing forms (19).

20. offset printing unit (13) according to claim 6, characterized in that in at least one of the operating modes of the forme cylinder (16) in the axial direction next to each other carries several over a newspaper page width of the currently relevant format (F1) reaching printing forms (19).

21. offset printing unit (13) according to claim 6, characterized in that in at least one of the operating modes of the forme cylinder (16) in the axial direction next to each other carries two over three newspaper page widths of the currently relevant format (F1; F2) reaching printing forms (19).

22. Offset printing unit (13) according to claim 1 or 4, characterized in that the forme cylinder (16) has a circumference of two printing pages arranged one behind the other in the standing newspaper format.

23. offset printing unit (13) according to claim 1 or 4, characterized in that the forme cylinder (16) in the circumferential direction one behind the other with two printing forms (19; 19 '; 19 ") is occupied.

24. Offset printing unit (13) according to claim 1 or 4, characterized in that ends (24; 26) of axially aligned printing forms (19) on the forme cylinder (16) are arranged in a continuous channel opening (28).

25. offset printing unit (13) according to claim 23 and 24, characterized in that the printing forms (19) in two circumferentially offset from each other by 180 °, in the axial direction through channel openings (28) are arranged.

26. offset printing unit (13) according to claim 13, 14 or 15, characterized in that the channel opening (38; 39) for receiving ends (24; 26) of the printing blankets (21) in the region of the lateral surface a slot width (s28; s38; s39) in the circumferential direction of at most 5 mm, in particular of at most 3 mm.

27. Offset printing unit (13) according to claim 24 or 25, characterized in that the channel opening (28) for receiving ends (24; 26) of the printing forms (19) in the region of the lateral surface has a slot width (s28) in the circumferential direction of at most 5 mm , in particular of at most 3 mm.

28. Offset printing unit (13) according to claim 6, characterized in that a number of pages of the printed pages viewed in the axial direction is the same in the first operating mode and the second operating mode.

29. Offset printing unit (13) according to claim 6, characterized in that the Forme cylinder (16) on its lateral surface in the axial direction, viewed in the first operating mode, has six standing printed pages in a first newspaper format (F1; F2) and in the second operating mode has six standing printed pages in a smaller, second newspaper format (F2).

30. offset printing unit (13) according to claim 29, characterized in that the forme cylinder (16) in a third mode of operation on its lateral surface viewed in the axial direction carries four lying print pages in tabloid format (F3).

31. offset printing unit (13) according to claim 6, characterized in that the forme cylinder (16) viewed on its outer surface in the axial direction in the first operating mode six standing print pages in newspaper format (F1; F2) and in the second operating mode four lying print pages in tabloid format (F3) carries.

32. offset printing unit (13) according to claim 6, characterized in that the two formats (F1; F2) represent newspaper formats.

33. offset printing unit (13) according to claim 6 or 32, characterized in that at least one of the formats (F1; F2) is designed as a print page in broadsheet format.

34. offset printing unit (13) according to claim 6 or 32, characterized in that the larger format (F1) has a greater width of the printing side than the smaller (F2; F3).

35. Offset printing unit (13) according to claim 6, characterized in that in one mode of operation two three-page printing widths (19 ") and in the other operating mode only a plurality of printing page-wide and / or two-page printing forms (19; 19 ') on the forme cylinder (16) are arranged side by side.

36. offset printing unit (13) according to claim 6 or 35, characterized in that the three-sided printing plate (19 ") extends substantially over half the length of the barrel of the forme cylinder (16).

37. Offset printing unit (13) according to claim 6 or 35, characterized in that the three-sided printing form (19 ") extends substantially over half the width of a web (03.1) of the larger format (F1) to be printed.

38. offset printing unit (13) according to claim 2, 4, 36 or 37, characterized in that the three-sided printing form (19 ") is asymmetrically provided with printed images, in particular exposed.

39. Offset printing unit (13) according to claim 2 or 4, characterized in that three print images of a newspaper format (F2) are arranged equidistantly on the three-page printing form (19 ") in such a way that they are in direct succession from the printing machine center axis (M) are arranged on the outside and a non-printing area remains in the edge area of the forme cylinder (16) near the end face.

40. offset printing unit (13) according to claim 6 or 38, characterized in that three printed images of the smaller format (F2) are arranged equidistantly on the three-sided printing form (19 ") in such a way that they are in direct succession from the printing machine center axis (M) are arranged outwards and a non-printing area remains in the edge area of the forme cylinder (16) near the face.

41. offset printing unit (13) according to claim 39 or 40, characterized in that the non-printing edge area is 50 to 100 mm.

42. Offset printing unit (13) according to claim 2 or 4, characterized in that the triple-width printing form (19 ") has a width (b19") of 950 to 1,200 mm, in particular 950 to 1,100 mm.

43. Offset printing unit (13) according to claim 1 or 5, characterized in that the triple-width printing blanket (21) has a width (b21) of from 950 to 1,200 mm, in particular 950 to 1,100 mm.

44. Web-fed rotary printing press with an offset printing unit (13) according to one or more of claims 1 to 30 or 32 to 41, characterized in that the web (03) following the printing unit (13) in both modes of newspaper printing, in each case by a longitudinal cutting device ( 06; 65) can be cut into three part-wide sections (03a; 03b; 03c).

45. Web-fed rotary printing press according to claim 44, characterized in that a width of the partial webs (03a; 03b; 03c) corresponds in each case to a double width of the printed page format (F1; F2), in particular newspaper format (F1; F2).

46. Web-fed rotary printing press with an offset printing unit (13) according to claim 30 or 31 and one of claims 32 to 41, characterized in that the web (03) following the printing unit (13) in the mode of operation of the tabloid printing by at least one longitudinal cutting device (06 ; 65) is cut into a total of four partial webs (03a1; 03a2; 03b1; 03b2).

47. Web-fed rotary printing machine according to claim 46, characterized in that a width of the partial webs (03a1; 03a2; 03b1; 03b2) corresponds in each case to a length of the printed page format, in particular tabloid format (F3).

48. Web-fed rotary printing machine according to claim 44, characterized in that the partial webs (03a; 03b; 03c) can be fed to a folding structure (11) with three folding formers (41; 42; 43) arranged next to one another without any further longitudinal section.

49. Web-fed rotary printing machine according to claim 48, characterized in that the two outer of the three funnels (41; 42; 43) are arranged to be movable transversely to the direction of entry of the partial webs (03a; 03b; 03c).

50. Web-fed rotary printing machine according to claim 46, characterized in that the partial webs (03a; 03b; 03c) can be fed to a folding structure (11) with a group of two folding formers (44) arranged next to one another.

51. Web-fed rotary printing machine according to claim 44 and 46, characterized in that it can be operated either in newspaper printing or in tabloid printing.

52. Web-fed rotary printing machine according to claim 51, characterized in that the four partial webs (03a1; 03a2; 03b1; 03b2) can be fed to a folding structure (11) with two folding formers (41; 42; 43) arranged next to one another and each with two partial web widths.

53. Web-fed rotary printing machine according to claim 51, characterized in that the four partial webs (03a1; 03a2; 03b1; 03b2) are turned in pairs and can be fed to a two-part web-wide former (44).

54. Web-fed rotary printing machine according to claims 51 and 53, characterized in that the folding former (44) is arranged as an additional folding former (44) laterally next to the group of three former (41; 42; 43).