EP0878299A1 - Newspaper rotary web printing machine - Google Patents

Abstract

Two plate cylinders (24a,24b) are rotarily mounted in the housing (18). the first plate cylinder has a first offset blanket cylinder (10a), while the second plate cylinder has a second offset blanket cylinder (10b). The offset blanket cylinders of the same diameter as their plate cylinders each have a rubber blanket sleeve (12a,12b). The two plate cylinders each have a length four times the width of one newspaper page, and a periphery corresponding to the height of one newspaper page, and four printing plates corresponding to the pages of a newspaper.

Description

The invention relates to a web-fed newspaper press according to the Preamble of claim 1.

From the prior art are web-fed rotary offset printing machines for printing Newspapers known in which four single-color or multi-color newspaper pages across the first and second sides of a running paper web are printed. These so-called 16-page printing machines are used, for example, for printing monochrome or multicolored daily newspapers or weekly newspapers.

Galaxy-Serie" der Anmelderin ist es bekannt, Gummi - Gummi-Druckwerke mit Plattenzylindern einzusetzen, von denen jeder zwei Druckplatten um den Umfang des Zylinders herum und vier Druckplatten über die Breite des Zylinders hinweg trägt (sogenanntes 8x2-Design), wobei jede der Druckplatten ein zu einer Zeitungsseite korrespondierendes Druckbild aufweist.From the

Galaxy series "by the applicant it is known to use rubber-rubber printing units with plate cylinders, each of which carries two printing plates around the circumference of the cylinder and four printing plates across the width of the cylinder (so-called 8x2 design), each of which Printing plates has a print image corresponding to a newspaper page.

Due to the formation of the blanket cylinder and the corresponding Plate cylinders as double-sized cylinders, with two pressure plates around the circumference of each cylinder are arranged, such 8x2 printing machines have a high Weight and are comparatively large, which is why they are accordingly reinforced and thus expensive foundation and a correspondingly large room in which the Printing machines are set up, need.

In addition, the 8x2 printing machines are flexible in design and Arrangement of the pages generally comparatively small and the number of page jumps, that is, the number of pages that must be printed without an unprinted one Page in the printed product arises in the usual way with such machines on four sides.

US 3,335,663 describes a plate clamping mechanism that is attached to a simply large one Plate cylinder is arranged. The plate cylinder carries a total of four conventional ones Printing plates arranged across the width of the cylinder. Although in the Scripture mentioned is that it is a reversible cylinder in the direction of rotation acts that can be used in a newspaper press, describes or shows the Scripture has no details about the printing press as such.

US 3,230,897 describes a plate clamp mechanism for a double sized one Plate cylinder that carries four stereotypical printing plates across the width and two these plates are arranged around the circumference of the cylinder. The document gives no indication of what type of printing press the cylinder is used in can be.

From US 5,429,048 is a web-fed offset printing press for the Commercial printing is known, which a printing unit with a blanket sleeve carrying Blanket cylinder and a single flexible offset printing plate Has printing plate cylinder. The scripture gives no indication of more than one Clamp the printing plate on the printing plate cylinder and the machine for the Use newspaper printing.

The object of the invention is to achieve a roller rotary offset printing machine to create newspapers with the four newspaper pages can be printed across the width of a paper web, which is small in size has a low weight and is easily accessible, only one to operate small number of operators is necessary and which is easy and fast Exchange of printing plates and blankets allowed.

This object is achieved by the features of claim 1.

Further features of the invention are contained in the subclaims.

According to a first embodiment of the invention, a web-fed rotary printing press has for newspaper printing a printing unit, which has a housing with a has a first side wall and a second side wall, in which a first and a second plate cylinder are rotatably mounted. The plate cylinders have a length that corresponds essentially to four times the width of a newspaper page and have one Extent that corresponds essentially to the height of a newspaper page. The first and second plate cylinders are corresponding first and second blanket cylinders assigned, each of which is essentially the same diameter as that of it has assigned plate cylinders. Each of the first and second blanket cylinders carries an endless blanket sleeve that axially on the associated blanket cylinder can be slid on or pulled off, while the respective first or second Blanket cylinder flying in the first side wall of the housing of the printing press is stored.

According to a further embodiment of the invention, the first and second Plate cylinder and the associated blanket cylinder, or the turning centers of the Cylinder of each printing unit, arranged essentially along a line, so that there is an essentially linear cylinder arrangement.

According to a further embodiment of the invention, each pair of cylinders consisting of a plate cylinder and the blanket cylinder assigned to it is driven in a printing unit by a separate motor.
According to a further preferred embodiment of the invention, each of the first and second plate cylinders carries four conventional flat printing plates which are stretched around the cylinder and held by a plate clamping mechanism, the printing plates being arranged directly next to one another on the plate cylinder.

According to a further embodiment of the invention, each of the first and second wears Plate cylinder four axially slidable on and removable from the cylinder endless printing plate sleeves, the first and the second plate cylinder correspondingly are overhung in a side wall of the housing of the printing press when the endless printing plate sleeves by one in the associated opposite Side wall of the housing arranged opening axially withdrawn from the plate cylinder will. In this embodiment of the invention, the endless axially removable and push-on printing plates preferably also directly adjacent to one another arranged on the associated plate cylinder.

In the same way, however, it is also possible to use the conventional flat printing plates or also the axially removable endless plate sleeves spaced apart on the to arrange the associated plate cylinder.

In a further embodiment of the printing press according to the invention, the first and second plate cylinders have a length in the range between 1200 mm and 1700 mm. The scope of the corresponding first or second plate cylinder can be one Have a length in the range between 470 mm and 650 mm. The ratio of length to The diameter of the first and second plate cylinders is preferably in one Range between 8.4: 1 and 9: 1.

According to a further embodiment of the invention, a Printing machine preferably four printing units arranged one above the other, one of which each creates a printed image with a different color. The one to be printed In this embodiment of the invention, the paper web preferably runs in essentially vertically from one printing unit to the next. In addition, with this Embodiment of the invention, a fifth printing unit over the four below Printing units may be arranged, the four printing units preferably having printed images print the colors yellow, magenta, cyan and black and the fifth printing unit as Impression unit or for printing additional special colors can be used usually differ from the four aforementioned colors.

Alternatively, it can be provided that the fifth printing unit has the same color as one of the printing units below prints and alternates with this printing unit is operated so that the corresponding printing unit, which is temporarily not in operation is, in the so-called flying alternating operation with new printing plates or new ones Blankets for a next print job can be populated while using the the respective other printing unit the printing operation is continued. This is a continuous printing with flying plate change possible.

The printing press according to the invention is advantageously used together with a known puncteless folder used, the known from the printed web Appropriate signatures are generated. By using a pointless Folders become the edges of each signature and thus the amount of Paper, which is required for a specific print job, advantageously further reduced.

Furthermore, the newspaper printing press according to the invention has the advantage that due to the small diameter of the plate cylinder, the number of printing plates for each Print job needed is only half the number of printing plates that are are required in a known 16-page printing press in which two identical Plates over the circumference of a plate cylinder and four printing plates over the width of the Cylinders are arranged. As a result, the costs and the space required for Generated and considerably reduced for storing the printing plates.

Furthermore, in the newspaper printing press according to the invention, the number of page jumps is reduced to only two jumps, which gives flexibility in terms of page design, the so-called paging "compared to an 8-page printing machine in which the number of page jumps is usually four, is significantly improved. Accordingly, the printing machine according to the invention has a considerably greater flexibility in the arrangement of the pages, the page layout and the page layout of each newspaper page, what leads to a reduction in the time and costs required in the prepress stage and, in comparison with a conventional 4x2 newspaper printing press, the amount of waste which is produced as a result of incorrectly placing a printing plate on a plate cylinder is reduced.

Furthermore, in the printing press according to the invention, the damaged by Blanket or a web break, in which the web is around the blanket cylinder wraps, resulting downtimes of the printing press are considerably reduced since the endless sleeve-shaped rubber blankets with the web section wrapped around them in a simple manner axially by one formed in the side wall of the printing press Opening can be removed from the blanket cylinder and then through a new blanket sleeve can be replaced. This advantageously does not additional downtime for removing the compressed and hardened layer Web and ink from the blanket cylinder are required, as is usual is the case when using conventional finite blankets.

In addition, the printing machine according to the invention has the advantage that Wider printing of the paper web (fan-out effect) due to the low height of the Printing units and therefore also those of four or five arranged one above the other Printing units or printing towers formed by the printing units is comparatively small, which significantly improves the quality of the printed products. Next to it follows due to the reduced height of the printing towers, the further advantage that with a printing tower With five printing units, only a single gallery or platform is required, which means that ergonomics are increased and material costs are reduced. So can for example, in a printing tower with five printing units, in which the fifth Printing unit is operated alternately with one of the four printing units underneath, the preparatory work for the use of the fifth printing unit easily by one person be carried out, which is on the gallery or platform, without this z. B. a ladder is needed. Therefore, for the operation of an inventive Printing machine with five printing towers having no printing towers Safety precautions are required that the printer when setting up the Protect printers from falling from the gallery or platform.

Finally, it is an advantage of the web-fed rotary offset printing machine according to the invention, that the width of the unprinted edge is only a fraction of the edge width, as it does with conventional state-of-the-art newspaper printing machines can be achieved at best.

Fig. 1

eine schematische Seitenansicht einer bevorzugten Ausführungsform einer erfindungsgemäßen Zeitungsdruckmaschine, bei der Drucktürme mit jeweils vier Druckwerken beiderseits eines Falzapparates angeordnet sind,

Fig. 2

eine schematische Seitenansicht eines Druckturmes mit fünf Druckwerken gemäß einer weiteren Ausführungsform der Erfindung,

Fig. 3

eine schematische Frontansicht des Druckturmes von Fig. 2;

Fig. 4

eine schematische Aufsicht auf ein Druckwerk einer erfindungsgemäßen Zeitungsdruckmaschine; und

Fig. 5

eine schematische Darstellung einer weiteren Ausführungsform einer erfindungsgemäßen Zeitungsdruckmaschine, bei der die Druckplatten als endlose hülsenförmige Druckplatten ausgebildet sind, die auf einem fliegend gelagerten Plattenzylinder nebeneinanderliegend angeordnet sind.

The invention is described below with reference to the drawings using preferred embodiments in the form of examples. The drawings show:

Fig. 1

2 shows a schematic side view of a preferred embodiment of a newspaper printing press according to the invention, in which printing towers, each with four printing units, are arranged on either side of a folder,

Fig. 2

2 shows a schematic side view of a printing tower with five printing units according to a further embodiment of the invention,

Fig. 3

is a schematic front view of the printing tower of Fig. 2;

Fig. 4

a schematic plan view of a printing unit of a newspaper printing press according to the invention; and

Fig. 5

is a schematic representation of another embodiment of a newspaper printing press according to the invention, in which the printing plates are designed as endless sleeve-shaped printing plates, which are arranged side by side on a cantilevered plate cylinder.

The web-fed newspaper printing press according to the invention, shown schematically in FIG. 1 1 comprises a plurality of printing towers 2a, 2b, 2c and 2d, of each of which has a large number of printing units 4, for example four printing units, each one of the colors yellow, magenta, cyan or black on a first and a second side of a preferably essentially perpendicular through the printing units 4 trending paper web 6 prints. The printing press 1 according to the invention also has a folder 8, which a plurality of printed in the printing unit 4 Paper webs 6 is fed. The folder 8 is preferably in the middle or in The center of the printing press 1 is arranged and generated from the webs 6 fed to it a large number of cut and folded signatures, not shown, or Newspaper pages.

The device according to the invention is not based on the arrangement shown in FIG Printing towers 2, the number of printing units 4 used in each printing tower and the arrangement of the folder 8 in the middle of the printing press 1 is limited. That's the way it is for example also possible, a further fifth printing unit 4 or more Arrange printing units 4 on one, two or more of the printing unit towers 2 and the folder 8, for example at the end of a row of printing unit towers 2 to provide.

2 is a schematic cross-sectional view of a preferred embodiment a printing tower 2 with a total of five printing units 4.1, 4.2 arranged one above the other, 4.2, 4.4 and 4.5 shown in detail. Each printing unit 4 comprises a first and a first second blanket cylinder 10a, 10b, on which a corresponding first and second Endless sleeve-shaped rubber blanket 12a, 12b is arranged. As in detail in Fig. 3 is shown, the endless blankets 12a, 12b on the blanket cylinders 10a, 10b attached in such a way that they are axially from the first and second Blanket cylinder 10a, 10b through a corresponding opening 14 in a first Side wall 16 of the housing 18 can be removed (Fig. 3). While peeling off or removing the first and / or second blanket sleeve 12a, 12b by the associated opening 14, the first and / or second blanket cylinders 10a, 10b in the opposite second side wall 20 of the housing overhung as it is indicated for example in Fig. 3. During the operation of the printing press, the first and second blanket cylinders 10a, 10b preferably rotatable in both Side walls 16 and 20 of the housing mounted, as shown in Fig. 4. For this the corresponding bearings 22 in each of the blanket cylinders 10a, 10b associated opening 14 may be attached, as indicated in Fig. 4. A detailed description regarding the attachment of an endless sleeve-shaped Blanket on a floating blanket cylinder is for example in the US 5,429,048.

Each printing unit 4 further comprises first and second, the first and second Blanket cylinders 10a, 10b corresponding to assigned plate cylinders 24a, 24b. Everyone the first and second plate cylinders 24a, 24b have substantially the same Diameter as the associated blanket cylinder 10a, 10b and carries a set of four printing plates A, B, C, D or E, F, G, H, each of which printing plate Printed image of an associated preferably standing newspaper page carries on the Lane 6 is to be printed. The printing plates A, B, C, D, E, F, G, H are preferred ordinary flexible flat pressure plates that surround the body of the first and / or second Plate cylinders 24a, 24b are clamped or wound around and on the Plate cylinders 24 are held by means of a known pressure plate clamping device 38 as shown schematically in Fig. 2.

According to a preferred embodiment of the invention, each of the first and second plate cylinder 24a, 24b a pressure plate clamping device 38, by means of which each of the four conventional printing plates A, B, C, D, E, F, G, H separately on the Plate cylinder is held. A plate clamping device of the generic type for separate clamping and holding of four different pressure plates described for example in US 3,335,663 and US 3,230,897.

Alternatively, it can be provided that the printing plates A, B, C, D, E, F, G, H as endless sleeve-shaped pressure plates A ', B', C ', D', E ', F', G ', H' are formed as they are are known for example from US 4,913,048. In this embodiment the Invention shown schematically in Fig. 5 become the first and second Plate cylinder 24a, 24b flying in the corresponding side wall 20 of the housing 18 stored when the endless printing plates or printing form sleeves A ', B', C 'and D' as well E ', F', G ', H' through an associated opening in the figure, not shown in the figures opposite side wall of the housing 18 during the standstill of the Printing machine axially withdrawn from the corresponding plate cylinder 24a, 24b, or on be postponed. During the operation of the printing press 1, the Plate cylinders 24a, 24b in this embodiment of the invention also in both Side walls 16, 20 of the housing 18 rotatably mounted, as previously related was described with the associated blanket cylinders 10a and 10b.

In the preferred embodiment of the invention, the printing plates A, A ', B, B', C, C ', D, D' and E, E ', F, F', G, G ', H, H' preferably on the associated first and second plate cylinders 24a, 24b mounted in such a way that between two adjacent printing plates there is no gap. Alternatively, according to one, it cannot illustrated embodiment of the invention can be provided, conventional flexible flat pressure plates or endless sleeve-shaped pressure plates on the respective Attach plate cylinders 24a, 24b in such a way that the side edges of two adjacent printing plates are arranged at a distance from each other.

As can be seen, for example, from FIGS. 1 and 2, the preferred ones are Embodiment of the invention, the first and second plate cylinders 24a, 24b one each printing unit, or their turning centers, preferably essentially along one Line arranged, the cylinders of a printing unit advantageously over the Horizontal can be arranged slightly inclined to the wrapping area the web 6 in which the web enlarges each of the first and second Blanket cylinder 10a, 10b wrapped around a printing unit 4. When using one along the horizontal linear cylinder arrangement can also be provided be that the angle of the wrapping area by between two printing units z. B. the printing units 4.1 and 4.2 in Fig. 2, arranged adjustable guide rollers, which in the Drawings are not shown and over which the web 6 is guided, can be changed.

As can further be seen from FIGS. 2 and 3, the preferred one Embodiment of the invention each pair of cylinders consisting of the first and second Plate cylinder 24a, 24b and the associated blanket cylinder 12a, 12b by one separate motor 26 driven.

Furthermore, it can be provided that the first plate cylinder 24a is driven by a first motor, the second plate cylinder 24b by a separate second motor and the first and second rubber blanket cylinders 12a, 12b coupled by gearwheels are driven by a separate third motor, the motors being the cylinders can drive either directly or via a gearbox and the synchronization of the printing units 4.1, 4.2, 4.3, 4.4 and 4.5, or the printing unit towers 2, alone via corresponding control electronics, which are known as electronic longitudinal shaft ". This results in considerable structural simplifications, in particular when flying alternating operation or when operating as impression mechanism, since the motors of the plate cylinders can be raised and lowered independently of one another without the need for complex mechanical couplings. For the two above Described embodiments of the invention, an adjustment of the circumferential register is preferably carried out via the separate drive motors.

Alternatively, it can be provided that the plate and blanket cylinders 24a, 24b and 10a, 10b are driven in a known manner via a common longitudinal shaft. The adjustment of the circumferential register of the first or second plate cylinder 24a, 24b can take place here by means of a corresponding circumferential register adjustment device 27, which is formed, for example, by a known harmonic drive can be, which to the drive shafts of the first and / or the second Plate cylinder 24a, 24b is coupled. The circumferential register and additionally Lateral register adjustment of each of the plate cylinders 24a, 24b can be done in the same way by means of a known conventional register adjustment device, such as, for example is described in US 5,535,675.

According to a further embodiment of the invention, the first and the second point Plate cylinders 24a, 24b have a length that ranges between 1200 mm and 1700 mm lies. In this embodiment of the invention, the scope of the first and second lies Plate cylinders 24a, 24b and the first and second blanket cylinders 10a, 10b preferably in the range between 470 mm and 650 mm. Accordingly lies with this Embodiment of the invention the length-to-diameter ratio of the first and second plate cylinder 24a, 24b in the range between 8.4: 1 and 9: 1.

As described above and shown, for example, in FIG. 1, four printing units 4 one above the other, each one of the colors yellow (Y), magenta (M), Cyan (C) or Black (B) on a substantially vertical from a printing unit 4 to next printing unit 4 runs web 6 prints.

According to a further embodiment of the invention, four printing units 4.1. 4.2, 4.3 and 4.4 for the colors yellow (Y), magenta (M), cyan (C) and black (B) together with a fifth printing unit 4.5 arranged one above the other, as is the case, for example, in FIG. 2 is shown. The fifth printing unit 4.5 can either be used to print an additional one Special color (S) can be used, which is used for example in company logos etc. and by superimposing color grids of the four colors yellow (Y), magenta (M), Cyan (C) and black (B) printed with a comparatively low quality can be.

Alternatively, it can be provided that the fifth printing unit 4.5 alternates with one the lower printing units 4.1 to 4.4 is operated, which is the same color as the fifth Printing unit 4.5, preferably black (B), prints. In this operating mode, the Printing unit, which is currently not required for a print job, shutdown and switched off after the associated plate cylinder 24a, 24b of the Printing unit have been turned off from the associated blanket cylinders 10a, 10b.

The switched-off printing unit 4 can then be replaced with new printing plates A, A ', B, B', C, C ', D, D ', E, E', F, F ', G, G' and H, H 'for a next print job.

As shown in FIG. 2, a gallery or work platform 28 can also be used a scaffold or railing 30 and a ladder 32 for entering the platform 28 be provided. The platform 28 is preferably approximately 2.2 m high and is arranged between the printing units 4.2 and 4.3 of Fig. 2 in such a way that the Printer 34 can set up the lower printing units 4.1 and 4.2 while on the Floor of the print shop is, and he set up the top three printing units 4.3, 4.4 and 4.5 or prepare for printing while standing on platform 28. At the in Fig. 2 shown embodiment of the printing units 4.1 to 4.5 of the printing tower 2 is the height of each printing unit 4.1, 4.2, 4.3, 4.4, 4.5 approximately 1.1 m and the height of the Platform 28 is approximately 2.5 m. Therefore, the printer 34 can use the endless ones Blankets 12a, 12b and / or the endless printing plates A ', B', C ', D' and E ', F', G '; H 'of the upper printing units 4.3 to 4.5 through the associated opening 14 shown in FIG. 4 axially while standing on the platform 28.

In the preferred embodiment of the invention, in the conventional plane Printing plates A, B, C, D and E, F, G, H on the corresponding first and second Plate cylinders 24a, 24b will use the flat, flexible printing plates preferably through openings 40.1 arranged at the level of the plate cylinders 24a, 24b, 40.2, 40.3, 40.4, 40.5 changed through as z. B. is indicated in Fig. 3.

However, the height of each printing unit or the height of the platform 28 can be in can be chosen larger or smaller in the same way.

REFERENCE SIGN LIST

1

Roll rotary offset newspaper press

2a

Printing tower

2 B

Printing tower

2c

Printing tower

2d

Printing tower

4.1

Printing unit

4.2

Printing unit

4.3

Printing unit

4.4

Printing unit

4.5

Printing unit

6

train

8th

Folder

10a

first blanket

10b

second blanket

12a

Blanket sleeve

12b

Blanket sleeve

14

Opening (Fig. 2)

16

Side wall

18th

casing

20th

Side wall

22

camp

24a

first plate cylinder

24b

second plate cylinder

26

engine

27

Circumference register adjustment device

28

platform

30th

Railing / scaffolding

32

ladder

34

operator

38

Pressure plate clamping device

40.1

Opening (Fig. 3)

40.2

Opening (Fig. 3)

40.3

Opening (Fig. 3)

40.4

Opening (Fig. 3)

40.5

Opening (Fig. 3)

A, B, C, D, E, F, G, H

conventional printing plates

A ', B', C ', D', E ', F', G ', H'

endless printing plates

Claims (18)

Web-fed newspaper press with at least one printing unit having a housing (18),
with a first and a second plate cylinder (24a, 24b) rotatably mounted in the housing (18) as well as a first blanket cylinder (10a) assigned to the first plate cylinder (24a) and a second blanket cylinder (10b) assigned to the second plate cylinder (24b) each have essentially the same diameter as the plate cylinder assigned to them and each carry a blanket sleeve (12a, 12b) which can be axially removed from the blanket cylinder (10a, 10b), while the blanket cylinder (10a, 10b) is flying in a side wall (20 ) of the housing (18) is mounted,
characterized by
that the first and second plate cylinders (24a, 24b) each have a length substantially four times the width of a newspaper page and a circumference substantially the height of a newspaper page and carry four printing plates corresponding to the pages of a newspaper. Device according to claim 1,
characterized by
that the centers of rotation of the first and second plate cylinders (24a, 24b) and the associated first and second blanket cylinders (10a, 10b) of a printing unit are arranged substantially linearly. Device according to claim 1 or 2,
characterized by
that the plate cylinders (10a, 10b) and the blanket cylinders (24a, 24b) assigned to them form cylinder pairs which are driven by a separate motor. Device according to claim 3,
characterized by
that each of the plate cylinders (24a, 24b) has a circumferential register adjustment device (27). Device according to one of the preceding claims,
characterized by
that each of the first and second plate cylinders (24a, 24b) carries four flexible conventional printing plates which are held on the cylinder by a printing plate clamp (38). Device according to claim 5,
characterized by
that the flexible printing plates are arranged directly next to one another on the first and second plate cylinders (24a, 24b). Device according to one of claims 1 to 4,
characterized by
that each of the first and second plate cylinders (24a, 24b) carries four axially removable endless printing plates (A ', B'; C ', D', E ', F', G 'and H'), the first and second plate cylinders (24a, 24b) are overhung in a first side wall (16) of the housing (18) when the endless pressure plates (A ', B'; C ', D', E ', F', G ', H') axially removed from the plate cylinder (24a, 24b). Device according to claim 7,
characterized by
that the axially removable endless pressure plates A ', B'; C ', D', E ', F', G 'and H' are arranged directly next to one another on the first and second plate cylinders (24a, 24b). Device according to one of the preceding claims,
characterized by
that the first and second plate cylinders (24a, 24b) have a length in the range between 1200 mm and 1700 mm. Device according to one of the preceding claims,
characterized by
that the first and second plate cylinders (24a, 24b) have a circumference in the range between 470 mm and 650 mm. Device according to one of the preceding claims,
characterized by
that the length-to-diameter ratio of the first and second plate cylinders (24a, 24b) is in the range between 8.4: 1 and 9: 1. Device according to one of the preceding claims,
characterized by
that four printing units (4.1, 4.2, 4.3, 4.4) are arranged one above the other for printing a different color and the web (6) runs essentially in the vertical direction from one printing unit to the next. Device according to claim 12,
characterized by
that a fifth printing unit (4.5) is arranged over the four printing units (4.1 to 4.4). Device according to claim 12,
characterized by
that the four printing units (4.1 to 4.4) print the colors yellow (Y), magenta (M), cyan (C) and black (B), and that the fifth printing unit (4.5) prints a different color from the aforementioned colors. Device according to claim 13,
characterized by
that the fifth printing unit (4.5) prints the same color as one of the four underlying printing units (4.1 to 4.4) and is operated alternately with the printing unit (4.1 to 4.4) printing the same color. Device according to one of the preceding claims,
characterized by
that each of the plate cylinders (24a, 24b) has a plate clamping mechanism (38) with which four conventional pressure plates (A, B, C, D; E, F, G, H) can be fastened independently of one another on the cylinder. Device according to one of the preceding claims,
characterized by
that a pointless folder for further processing of the web (6) printed in the printing unit (4.1 to 4.5) is arranged in signatures downstream of the printing unit (4.1 to 4.5). Device according to claim 1,
characterized by
that the first plate cylinder (24a) can be driven via a first drive motor and the second plate cylinder (24b) via a separate second drive motor, and that the first and second blanket cylinders (10a, 10b) are coupled to one another via a gear and by a third drive motor are driven.

Images