EP1233862A2

EP1233862A2 - Transfer cylinder in a rotary printing machine

Info

Publication number: EP1233862A2
Application number: EP00989827A
Authority: EP
Inventors: Helmut Holm
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 1999-12-02
Filing date: 2000-12-01
Publication date: 2002-08-28
Anticipated expiration: 2020-12-01
Also published as: EP1361054A2; EP1233864B1; ATE488364T1; DK1310363T3; EP1334826B1; ES2211858T3; EP1334825B1; DE50015707D1; DE50010842D1; DE20024010U1; US20050145130A1; EP1361053A3; EP1574332A1; DE20023366U1; PT1454745E; EP1522405A3; EP1334825A3; WO2001039974A2; EP1361052A2; EP1310362A1

Abstract

The cylinder (2,3) has at least two ducts (12,13,14) one behind each other in a peripheral direction and taking second casings (9,11) on the cylinder. At least one of the ducts is at least partly covered by a second casing. The cylinder is a form or transfer cylinder with the second casing in the form of a printing plate,.

Description

description

Transfer cylinder of a rotary printing press

The invention relates to a transfer cylinder of a rotary printing press according to the preamble of claims 1 and 2.

DE 44 29 210 A1 discloses the arrangement of four printing foils arranged one behind the other in the direction of rotation of a forme cylinder and which are held in four pits. The printing foils each span an arc section lying between two pits.

DE 44 29 891 A1 shows a printing unit of a rotary printing press with a double-sized transfer cylinder (i.e. two section lengths around the circumference) which interacts with a single-sized forme cylinder.

An arrangement of cylinders of an offset printing unit is also known from DE 198 03 809 A1, in which the circumference of the transfer cylinder is in a double ratio to that of the forme cylinder. The forme cylinder can be covered in the circumferential direction with a printing form and in its longitudinal direction with at least four standing printed pages in broadsheet format, or a corresponding number of standing or lying tabloid or book formats. In the circumferential direction of the transfer cylinder, a single slot, either continuous in the longitudinal direction or divided in the longitudinal direction and offset by 180 °, is arranged to accommodate two printing blankets arranged next to one another in the longitudinal direction of the cylinder. The printing blanket is designed, for example, in two layers as a rubber blanket attached to a carrier plate.

DE 34 41 175 C2 are for the purpose of relaxing the rubber blanket Recesses in the cylinder surface of the transfer cylinder proposed. For this purpose, a pad can also be arranged between the cylinder and the rubber blanket, which does not point in the circumferential direction over the entire length of the rubber blanket and has an interruption. In addition to the tension channel for the rubber blanket, an insertion slot is provided on the circumference of the cylinder to accommodate the interrupted base. The recesses arranged in the longitudinal direction of the transfer cylinder and the channel receiving the rubber blanket are arranged such that they interact with the channel of the plate cylinder in the contact area.

DE 197 40 575 A1 shows form and transfer cylinders acting together, in one embodiment the transfer cylinders having two clamping channels and two rubber blankets held in the clamping channels one after the other in the circumferential direction. In another example, a double-sized transfer cylinder interacts with a double-sized forme cylinder, but both cylinders have only one clamping channel in the circumferential direction. In all examples, the channels do not roll on each other.

DE-OS 19 60 635 discloses a single forme cylinder which has a plurality of channels on its circumference in the circumferential direction for fastening printing forms. When the forme cylinder is covered with a printing form in the circumferential direction, at least one of the channels can be covered.

The invention has for its object to provide a transfer cylinder of a rotary printing press.

The object is achieved by the features of claims 1 and 2.

The advantages that can be achieved with the invention are, in particular, that a flexible one Use of different elevator formats is possible and at the same time pressure relief in the area of channels, in particular in the area of channels covered by lifts, and a printing quality which is as constant as possible over the scope is ensured when processing the printed image when using lifts with a long unwinding length.

The arrangement of several channels running in the longitudinal direction of the forme and / or transfer cylinder meets the most varied of requirements as required, without having to replace the cylinder in the event of changing requirements on existing printing presses or taking each requirement profile into account individually in production.

It is particularly advantageous that both different formats of the elevators, in the circumferential and longitudinal directions of the cylinders, as well as different constellations and phase shifts of the mutually interacting cylinders can be taken into account, and thus with regard to the partially competing requirements for register stability, low vibration, arrangement of the rolling print areas and minimization of the non-printable paper can be optimized as required.

An advantageous embodiment of a forme cylinder with double circumference, i. H. For example, two newspaper pages in the circumferential direction, optionally allows printing with printing forms arranged one behind the other in the circumferential direction or with printing forms that extend around the full circumference, whereby a channel is covered. The arrangement of full-size printing forms reduced z. B. considerably the changeover time. In the case of a transfer cylinder, an arrangement of printing blankets extending over the entire circumference considerably reduces the changeover time.

The arrangement of at least two channels which are approximately continuous in the longitudinal direction on a transfer cylinder opens up a multitude of possibilities Arrangement of elevators, such as printing blankets created. With regard to the quality of the processing of the printed image compared to double-sized cylinders with only one channel, the arrangement of several channels also means that in the case of printing blankets that extend over the full circumference, a covered channel simultaneously relaxes the elevator can serve.

The arrangement of a single elevator, which extends in the longitudinal and circumferential directions, brings advantages with regard to the diversity in the printable formats (height and width of the printing area, such as panorama, for example).

When a channel is covered by a printing form, it is advantageous due to the risk of breakage to arrange the forme cylinder and transfer cylinder in such a way that the covered channel rolls on a channel of the transfer cylinder. The unrolling of a channel of the transfer cylinder covered by a printing blanket on a channel of the forme cylinder is also advantageous with regard to a further improved relaxation of the printing blanket when the channels pass through one another, and is therefore advantageous for the unrolled printing image.

The arrangement of several lifts arranged side by side in the longitudinal direction of the cylinder, each extending almost over the entire circumference has z. B. advantages in terms of handling and individual interchangeability. This is especially the case for long cylinders, as is the case for double-wide (e.g. four newspaper pages in the longitudinal direction of the cylinder) or even three-fold (e.g. six newspaper pages) wide cylinders.

The design of the elevators for the transfer cylinder as a multilayer or multilayer printing blanket, which has a carrier plate and a support or layer connected to it, is also advantageous with regard to the quality of the processing of the printed image. Particularly in the case of large dimensions, printing quality that is consistently good and accurate in register over the circumference of the cylinder is possible Dimensionally stable training essential.

It is also advantageous to design the channels with a narrow opening towards the lateral surface of the cylinder, e.g. B. to reduce paper consumption. A narrow opening is particularly advantageous for channels of the forme cylinder, in particular for channels which are at least partially covered. For example, this can further reduce the risk of breakage.

Furthermore, it is advantageous to design the circumferential ratio of the transfer cylinder to the forme integer and to arrange the channels symmetrically in the circumferential direction on the cylinder.

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

Show it:

Fig. 1 is a double-wide pair of cylinders, the forme cylinder with two in

Longitudinal channels are formed and the elevators on the forme cylinder extend almost over the entire circumference;

2 shows a double-wide pair of cylinders, the form and transfer cylinder being formed with two channels running in the longitudinal direction and the lifts on the form and transfer cylinder extending almost over the entire circumference;

Fig. 3 two double-wide pairs of cylinders, the transfer cylinder with two in

Longitudinal channels formed and with two extending almost over the full circumference, lying in the longitudinal direction side by side Elevators is occupied;

Fig. 4 two double-wide pairs of cylinders, the transfer cylinder with two in

Longitudinal channels formed and is occupied by two elevators lying almost along the full circumference, lying side by side in the longitudinal direction, but offset in the circumferential direction by 180 °;

Fig. 5 two double-wide pairs of cylinders, the transfer cylinder with two in

Longitudinal channels formed and is occupied by two lifts extending almost over the entire length of the bale, arranged one behind the other in the circumferential direction;

6 shows two double-wide pairs of cylinders, the transfer cylinder being formed with two channels running in the longitudinal direction and with four elevators, two elevators arranged one behind the other in the circumferential direction being arranged next to one another in the longitudinal direction;

7 shows two double-wide pairs of cylinders, the transfer cylinder being formed with four channels running in the longitudinal direction and being covered with two elevators arranged one behind the other in the circumferential direction and extending almost over the entire length of the bale;

Fig. 8 is a multilayer printing blanket with channel and holding device.

A printing unit of a rotary printing press has at least one pair of cylinders 01 consisting of two cylinders 02; 03, for example a transfer cylinder 02 and a forme cylinder 03 cooperating with it. The transfer cylinder 02 can be printed on the substrate 04 to be printed with a counter-pressure cylinder, not shown, or with a transfer cylinder 07 of a second Cylinder pair 06 act together, which in turn is assigned a forme cylinder 08. The transfer cylinder 02; 07 are each provided with at least one elevator 09, for example a printing blanket 09, and the forme cylinders 03; 08 each with at least one elevator 11, for example a printing form 11, can be assigned.

Depending on the requirements of the print formats and the printing performance, as well as the possibilities in the paper guide, the cylinder pairs 01; 06 different widths. For example, the cylinder pairs 01; 06 designed for newspaper printing in single, double or triple widths, single width denoting the width of the bale, for example the forme cylinder 03, for two standing or lying newspaper pages. In commercial printing, the width required for four lying or six standing A4 pages is referred to as double width. The scope of the transfer 02; 07 and the forme cylinder 03; 08 are single or double, based on a wide variety of standing or lying formats, for example on a standing or lying newspaper format. Advantageous constellations in newspaper printing are, for example, a double size, i. H. two sides in the circumferential direction, in the transfer cylinder 02; 07 acting together with a double or single circumference in the forme cylinder 03; 08, each double wide.

1 shows a double-wide pair of cylinders 01, transfer cylinder 02 and forme cylinder 03 each having a double circumference. The forme cylinder 03 has two channels 12 running in the longitudinal direction and spaced apart in the circumferential direction; 13 for receiving the ends of at least one printing form 11, the transfer cylinder 02 a channel 14 for receiving the ends of at least one printing blanket 09. The channels 12; 13 of the forme cylinder 03, 08 are at least on a partial section in the longitudinal direction of the forme cylinder 03; 08, viewed in a cross section perpendicular to the axis of rotation, arranged one behind the other in the circumferential direction. In the example, the forme cylinder 03 is covered with four printing forms 11, for example printing plates 11, which are arranged next to one another in the longitudinal direction of the cylinder are each held with their two ends in the channel 12, extend to the area of the channel 12 in each case around the entire circumference and each cover the channel 13. In order to prevent a risk of breakage, the forme cylinder 03 and the transfer cylinder 02 are advantageously arranged with respect to one another such that the covered channel 13 interacts with the channel 14 of the transfer cylinder 02 when the cylinders roll off. The latter is not necessary if e.g. B. the channel 13 can be closed by means of a removable cover or the channel width is so small that breakage is avoided. The forme cylinder 03 can be single, double and triple wide. It can be flexibly occupied in a variety of ways, for example with one continuous, or two or more printing plates 11 of various formats arranged next to one another in the longitudinal direction (for example simple, panorama). If necessary, the forme cylinder 03 can also have more than two channels 12; 13 have. The transfer cylinder 02 in FIG. 1 can have a continuous channel 14 in which two printing blankets 09 are held next to one another in the axial direction. However, two in the axial direction next to each other, but offset from each other, z. B. by 180 °, channels 14; 16 may be arranged, the printing blankets arranged next to one another also being arranged offset from one another (not explicitly shown, second channel 16 would be covered in FIG. 1 and not visible).

The transfer cylinder 02 can, as shown by way of example in FIG. 2, a second, e.g. B. diametrically opposite and extending in the longitudinal direction of the transfer cylinder 02 channel 16. The channels 14; 16 of the transfer cylinder 02, 07 are at least on a partial section in the longitudinal direction of the transfer cylinder 03; 08, viewed in a cross section perpendicular to the axis of rotation, arranged one behind the other in the circumferential direction. In the example, a single printing blanket 09, which extends to the area of the channel 14 over the entire length of the bale and almost over the entire circumference, covers the transfer cylinder 02. The forme cylinder is here exemplarily with two in the longitudinal direction of the cylinder side by side lying, and each occupied by almost the full extent extending printing plates 11. In the example, the covered channel 13 interacts with the likewise covered channel 16 of the transfer cylinder 02 when the cylinder pair 01 rolls off. However, as in the first exemplary embodiment, it can roll on the uncovered channel 14.

In addition to that with the forme cylinder 03; 08 acting together, the double-wide embodiment of the transfer cylinder 02 can, for example, also be of single or triple width. The with the two channels 12, 13 having forme cylinders 03; 08 interacting transfer cylinders 02; 07 from the first two exemplary embodiments (FIGS. 1, 2) can, as shown by way of example in FIGS. 1 to 7 and their description, be flexible with a continuous printing blanket 09, or with two or more printing blankets 09 arranged next to one another in the longitudinal direction or one behind the other in the circumferential direction several in the longitudinal direction next to each other and simultaneously with several printing blankets 09 arranged one behind the other in the circumferential direction. In Figures 3 to 7, z. B. also a forme cylinder 03 of double circumference from FIGS. 1 or 2 and their description in place of the forme cylinders 03; 08 kick. If necessary, the transfer cylinder 03 can also have more than two channels 12; 13 have. 1 and 2 for the forme cylinder 03, 08, a transfer cylinder of conventional design and occupancy (e.g. double size and only one channel, one or two printing blankets in the longitudinal direction next to one another) or a transfer cylinder of double circumference can work together , which has two channels arranged next to one another in the axial direction and at the same time one behind the other in the circumferential direction, and can be covered with, for example, two printing blankets offset from one another in the circumferential and longitudinal directions. However, it is advantageous for all design variants of the forme cylinder 03; 08 interacting transfer cylinder 02; 07 if the latter has at least one channel 14; 16 in the longitudinal direction, and the at least partially covered channel 12; 13 of the forme cylinder 03; 08 on this channel 14; 16 rolls.

In the following exemplary embodiments, FIGS. 3 to 7 and the associated description, some further advantageous configurations for the arrangement of printing blankets 09 on a transfer cylinder 02; 07 set out, wherein the transfer cylinder 02; 07 a plurality of channels 14 running in the longitudinal direction; 16 has. The examples each show two double-wide cylinder pairs 01; 06, the two transfer cylinders 02; 07 work together on the substrate 04. The cylinder pairs 01; 06 can, if necessary, also be made single, triple or even four times wide. The teaching from the examples is then to be applied accordingly. In the examples, the transfer cylinder 02; 07 is twice as large as that of the forme cylinder 03; 08, which is covered here with four pressure plates 11 arranged side by side in the longitudinal direction. Likewise, the forme cylinder 03; 08 but can also be used with two panorama printing forms arranged side by side, or one panorama printing form and two simple printing forms. The interacting forme cylinder 03; 08, however, can also be of double size, it can be equipped with one or two channels 12; 13, with two printing forms 11 arranged side by side in the axial direction or in the circumferential direction one behind the other, or with several printing forms arranged side by side in the longitudinal direction and simultaneously with several printing forms arranged one behind the other in the circumferential direction. The embodiments shown in Figures 1 and 2 for the with the transfer cylinders 02; 07 of FIGS. 3 to 7 interacting forme cylinders 03; 08 are to be applied.

However, it is advantageous for all variants of the with the transfer cylinder 02; 07 from the exemplary embodiments 2 to 4 and 7 interacting forme cylinders 03; 08 if this has at least one channel 12; 13 in the longitudinal direction, and the at least partially covered channel 14; 16 of the transfer cylinder 02; 07 rolls on this.

3 shows the arrangement of two printing blankets 09 on a transfer cylinder 02; 07, which are arranged side by side in its longitudinal direction and each extend approximately over the full circumference. Two channels 14; 16 extend in the longitudinal direction of the transfer cylinder 02; 07 and are almost offset by 180 ° in the circumferential direction. The channel 16 is covered and, particularly in the case of non-dimensionally stable printing blankets 09, can counteract the flexing and relax the elevator as a relief unit. Advantageously, the channel 14 or the covered channel 16 acts against one another with the channel 12 of the forme cylinder 03; 08 together. 4, the two printing blankets 09 can also be arranged offset from one another in the circumferential direction by 180 °, in which case a part of the channel 14 and a part of the channel 16 are covered. The arrangement of three or more printing blankets 09 arranged next to one another, in particular in the case of very long cylinders, is carried out in an analogous manner in alignment or alternating.

5 shows the arrangement of two printing blankets 09 on a transfer cylinder 02; 07 shown with double handling, which are arranged one behind the other in the circumferential direction and each extend almost over the entire length of the bale. For each blanket 09, four in the longitudinal direction of the transfer cylinder 02; 07 transmitted newspaper pages arranged side by side. Are more than two channels 14, 16 on the transfer cylinder 02; 07 arranged, so the arrangement of a corresponding number of printing blankets 09, or an overlap of channels 14; 16 possible.

Fig. 6 shows the arrangement of four blankets 09 on one, for. B. double width and double large, transfer cylinder 02; 07. Two printing blankets 09 arranged one behind the other in the circumferential direction are arranged side by side in the longitudinal direction. In an analogous manner, especially for longer and stronger cylinders, more than two printing blankets are to be arranged in the longitudinal or in the circumferential direction. However, the latter sets a corresponding number of channels 14; 16 ahead.

7 shows an assignment of the transfer cylinder 02; 07 for example for four channels 14; 16; 17; 18 with two elevators 09; 11, in which case every second channel 17; 18 is covered. The same applies to the arrangement of four channels on forme cylinders 03; 08th

Both for the transfer cylinder 02; 07 as well as for the forme cylinders 03; 08 is the symmetrical arrangement of the channels 12 in the circumferential direction; 13 or 14; 16 advantageous with almost the same intermediate angles, z. B. with two channels 12; 13 or 14; 16 offset by 180 ° in each case, with three by 120 ° or alternately by 180 °. With more than two channels 12; 13 or 14; 16, a plurality of printing plates 11 or printing blankets 09 arranged next to one another in the longitudinal direction can also be offset from one another in the circumferential direction.

The ratio of the circumference of the transfer cylinder 02; 07 to which the forme cylinder 03; 08 is advantageously an integer, in particular in the case of a forme cylinder 03; 08 with channels 12; 13 equal to 1 if the scope is double.

The two pairs of cylinders 01 and 06 shown in FIGS. 3 to 7 do not have to be equipped in the same way with the same number and geometry of the channel, or with the same pattern for the elevators 09; 11 be occupied. However, it is advantageous to coordinate the phases of non-printing areas of the transfer cylinders 02; 07 so that areas that are not printing, in particular areas of the hidden or uncovered channels interact. Of course, the form 03 and transfer cylinders 02 described in FIGS. 1 to 7 can also be occupied in the “usual” manner, ie with several number of elevators 09; 11 predetermined by the number of channels one after the other in the circumferential direction.

The assignments of the transfer cylinders 02; shown in FIGS. 1 to 7 and the associated descriptions. 07 with printing blankets 09 are also to be applied accordingly to the other exemplary embodiments. The same applies to the assignment of the forme cylinder 03; 08 and the transfer to the other exemplary embodiments in connection with different designs of the transfer cylinder 02; 07th

In Figures 1 to 7, the channels 12; 13, 14, 16; 17; 18 each up to the end of the cylinder 02; 04, 07; 08 shown in progress. For example, for reasons of stability, for reasons of contamination or when using bearer rings, an edge without a channel 12; 13; 14; 16; 17; 18 are present. The channels 12; 13; 14; 16; 17; 18 run in this case almost over the entire length of the cylinder 02; 03, 07; 08 or its bale.

The embodiments and examples mentioned for the arrangement of channels 12; 13; 14; 16; 17; 18 and elevators 09; 11 on transfer cylinders 02; 07 and forme cylinders 03; 08 and configurations of printing units with a pair of cylinders 01; 06 from a transfer cylinder 02; 07 and a cooperating forme cylinder 03; 08 are of course also to be used in the case when the cylinder pair 01; 06 does not interact with a second transfer cylinder 07, but with an impression cylinder, for example a steel cylinder.

Under elevator 11 z. B. understood a one-piece pressure plate 11. The elevator 09 for the transfer cylinder 02; 07 represents a one-piece printing blanket 09. This one-piece printing blanket 09 can be of single-layer or multi-layer design, for the latter, for example, at least one layer 22 is applied to a carrier plate 21 and is firmly connected to the latter. The ends 23; 24 of the single or multilayer printing blanket 09 act with one in the channel 14; 16; 17; 18 arranged holding device 26 together.

In particular in connection with narrow openings of the channels 14; 16; 17; 18 to the outer surface of the transfer cylinder 02; 07 out, the formation of the printing blanket 09 as a multilayer printing blanket 09 is advantageous, which does not change its length or width, or changes it only insignificantly, when the forme cylinder 03 is rolled off the transfer cylinder 02, for example. H. is almost dimensionally stable. For this purpose, the blanket unit 09, as shown in FIG. 8, has the almost dimensionally stable carrier plate 21, for example made of metal or plastic, on which the elastic or soft layer 22 is applied (indicated in FIGS. 1 and 2). In the present example for the multilayer printing blanket 09, the ends 23 and 24 of the printing blanket 09 are identical to the ends of the carrier plate 21, since the carrier plate 21 is in contact with the channel 14; 16; 17; 18 cooperating area is bent and uncoated.

In another embodiment, the carrier plate 21 of the multilayer printing blanket 09 can also be coated up to the ends of the carrier plate 21, in which case the ends 23 and 24 of the multilayer printing blanket 09 also have the layer 21 in addition to the carrier plate 21. If the printing blanket is designed as a simple rubber blanket 09, the ends 23 act; 24 of the rubber blanket 09 with the channels 14; 16; 17; 18 together.

The channels 12; In an advantageous embodiment, 13 can have holding devices 33 for the printing forms 11.

The holding device 26; 33 can be a known device for the non-positive or positive locking and / or tensioning of an elevator 09; 11, such as B. force or form-fitting mechanisms, clamping strips or shafts driven by spring force or gear, or tangential drivers.

An advantageous embodiment of a holding device 26; 33 for an elevator 09; 11, in particular for a multilayer printing blanket 09 or a printing form 11, is exemplarily illustrated in FIG. 8 using the example of a multilayer printing blanket 09 in FIG. 8 by means of the channel 14 in the transfer cylinder 02. The arrangement of such or similar holding devices 33 for the printing plates 11 in the channels 12; 13 is indicated by way of example in FIG. 2.

The holding device 26 is arranged in the axially extending channel 14 of the transfer cylinder 02 for holding the printing blanket 09. The device for tensioning or holding the multi-part printing blanket 09 is actuated via a shaft 27 rotatably mounted in the channel 14 of the transfer cylinder 02, for example a spindle 27 with pressure pieces 28.

The channel 14, which runs parallel to the axis of the transfer cylinder 02 and is inclined to the tangent of the lateral surface by 30 to 60 °, in particular by approximately 45 °, has a gap 29 on the lateral surface of the transfer cylinder 02 and a gap lying inside the transfer cylinder 02 with which Gap 29 connected, bore 31. The width b29 of the gap 29 in the region of the lateral surface in the circumferential direction of the transfer cylinder (02; 03; 07; 08) is greater than twice the thickness of one of the ends 23; 24 of the printing blanket 09, which in the present example is equivalent to twice the thickness of the carrier plate 21. For the width b29 of the gap 29, 1 mm <b29 <5 mm, in particular b29 <3 mm, advantageously applies. In the case of a simple rubber blanket 09, the width b29 is slightly larger than twice the thickness of the rubber blanket 09, in the case of the multilayer printing blanket 09 coated to the ends of the carrier plate 21, the width b29 is slightly larger than twice the thickness of the coated end 23; 24 of the multi-layer printing blanket 09 to choose. In the bore 31, the shaft 27, in the example a pivotable spindle 27, is arranged in which the pressure pieces 28, for. B. stamps, balls or similar, are arranged resiliently and radially outward.

To clamp the printing blanket 09, both ends 23; 24 of the printing blanket 09, in the example synonymous with the ends of the carrier plate 21, are guided into the gap 29 and the spindle 27 is pivoted with the pressure pieces 28 such that they are almost perpendicular to the leading and trailing ends 23 and 24 of the printing blanket 09 or the support plate 21 and a cylinder-fixed wall 32 presses and holds them non-positively in the gap 29. If a plurality of printing blankets 09 are arranged one behind the other in the circumferential direction of the transfer cylinder 02, then a leading and a trailing end 23 and 24 of adjacent printing blankets 09 interact. The holding device 26 can additionally have a slide, not shown, which can be inserted into the gap 29 in addition to the ends 23 and 24 and closes the gap 29 towards the outside. This slide is advantageously connected to the spindle 27, so that it is moved into or out of the gap 29 when the spindle 27 is pivoted. The width b29 of the gap 29 is correspondingly larger when using such a slide.

The channels 12; 13 the forme cylinder 03; 08 are preferred as for channel 14; 16; 17; 18 also as narrow slots 12 inclined to the tangent of the lateral surface by 30 to 60 °, in particular by approximately 45 °; 13 executed, which have a width b12 (Fig. 1, 2) in the circumferential direction in the region of the lateral surface, which is greater than twice the thickness of the printing form 11. For the width b12 of the slot 12, 1 mm <b12 <5 mm, in particular b12 <3 mm, advantageously applies. For an exemplary basic illustration of the holding device 33 for the printing form 11, only the multipart printing blanket 09 (from the carrier plate 21 and layer 22) is shown in FIG. 8 for the multi-part printing blanket 09 by a printing form 11 with bent, into the channel 12; 13 reaching ends to replace. The reference number for the width b29 correspond to the width b12 and the reference symbol for the transfer cylinder 02 that of the forme cylinder, for. B. 03. The ends 23; 24 correspond to the bent ends of the printing form 11.

On a holding device 33 in the channels 12; 13 the forme cylinder 03; 08 can be dispensed with if the ends of the printing form 11 and / or the channels 12; 13 a secure hold is guaranteed.

LIST OF REFERENCE NUMBERS

01 pair of cylinders, first

02 cylinder, transfer cylinder (01)

03 cylinders, form cylinders (01)

04 substrate

05 -

06 pair of cylinders, second

07 cylinder, transfer cylinder (06)

08 cylinders, form cylinders (06)

09 elevator, printing blanket, rubber blanket

10 -

11 Elevator, printing form, printing plate

12 channel; Slot (03; 08)

13 channel; Slot (03; 08)

14 channel (02, 07)

15 -

16 channel (02, 07)

17 channel (02, 07)

18 channel (02, 07)

19 - 0 - 1 carrier plate (09) 2 layer (09) 3 end (09) 4 end (09) 5 - 6 holding device 7 shaft, spindle 28 pressure piece

29 gap

30 -

31 hole (02; 03; 07; 08)

32 wall (02; 03; 07; 08)

33 holding device

b12 width (12; 13) b19 width (19)

Claims

Expectations

1. Transfer cylinder (02; 07) of a rotary printing press with at least two channels (14; 16; 17; 18) arranged one behind the other in the circumferential direction of the transfer cylinder (02; 07), at least in a section arranged along the transfer cylinder (02; 07) Receiving one or more printing blankets (09), characterized in that at least one of the channels (14; 16; 17; 18) of the transfer cylinder (02; 07) is at least partially covered by a printing blanket (09).

2. Transfer cylinder (02; 07) of a rotary printing press with at least two channels (14; 16; 17; 18) arranged one behind the other in the circumferential direction of the transfer cylinder (02; 07), at least in a section arranged along the transfer cylinder (02; 07) Holding one or more printing blankets (09), and with at least two printing blankets (09) arranged one behind the other in the circumferential direction on the circumference of the transfer cylinder (02; 07), characterized in that the printing blankets (09) each have a multi-layer structure, a carrier plate (21) and having a layer (22) connected to the carrier plate (21).

3. transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that at least one of the channels (14; 16; 17; 18) of the transfer cylinder (02; 07) almost over the entire length of a bale of the transfer cylinder (02, 07) extends.

4. transfer cylinder (02; 07) according to claim 1 or 2, characterized in that the transfer cylinder (02; 07) has two circumferentially offset by 180 ° channels (14; 16; 17; 18), each of which is almost over the extend the entire length of the bale of the transfer cylinder (02; 07).

5. transfer cylinder (02; 07) according to claim 1, characterized in that the transfer cylinder (02; 07) has at least two in the longitudinal direction of the transfer cylinder (02; 07) side by side and each arranged approximately over the entire circumference of the printing blankets (09).

6. Transfer cylinder (02; 07) according to claim 5, characterized in that the printing blankets (09) are arranged with their ends in a channel (14; 16; 17; 18) or at least in alignment along the transfer cylinder (02; 07) are.

7. transfer cylinder (02; 07) according to claim 5, characterized in that the printing blankets (09) are arranged with their ends offset in the circumferential direction to one another in different channels (14; 16; 17; 18).

8. transfer cylinder (02; 07) according to claim 1, characterized in that the transfer cylinder (02; 07) has a printing blanket (09) running almost over the entire circumference.

9. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that the transfer cylinder (02; 07) has at least two printing blankets (09) next to one another in the axial direction.

10. Transfer cylinder (02; 07) according to claim 1, characterized in that the transfer cylinder (02; 07) has a plurality of printing blankets (09) arranged one behind the other in the circumferential direction.

11. Transfer cylinder (02; 07) according to one of claims 2 or 10, characterized in that the printing blankets (09) extend in the longitudinal direction approximately over the entire length of the bale of the transfer cylinder (02; 07).

12. Transfer cylinder (02; 07) according to claim 1, characterized in that the transfer cylinder (02; 07) has three in the longitudinal direction of the transfer cylinder (02; 07) side by side and each approximately over the entire circumference arranged printing blankets (09), which with their ends are alternately offset in the circumferential direction.

13. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that the bale of the transfer cylinder (02; 07) has a circumference which corresponds to at least two lying or standing newspaper pages.

14. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that a bale of the transfer cylinder (02; 07) has a width which corresponds to approximately four lying or standing newspaper pages.

15. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that a bale of the transfer cylinder (02; 07) has a width which corresponds to approximately eight standing book pages.

16. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that the bale of the transfer cylinder (02; 07) has a width which corresponds to approximately six lying or standing newspaper pages.

17. Transfer cylinder (02; 07) according to claim 1, characterized in that the channel (14; 16; 17; 18) of the transfer cylinder (02; 07) in the region of the lateral surface has a gap (29) with a width (b29) in Has circumferential direction that is greater than twice the thickness of one of the ends (23; 24) of the printing blanket (09) and in the range between 1 mm and 5 mm, in particular less than or equal to 3 mm.

18. Transfer cylinder (02; 07) according to claim 1, characterized in that the printing blanket (09) is designed as a multilayer printing blanket (09) which has a carrier plate (21) and an elastic layer (22) fastened thereon.

19. Transfer cylinder (02; 07) according to claim 1, characterized in that the printing blanket (09) is designed as a rubber blanket (09).

20. Transfer cylinder (02; 07) according to one of claims 1 or 2, characterized in that the transfer cylinder (02; 07) is arranged to cooperate with a forme cylinder (03; 08) as a pair of cylinders (01; 06).

21. Transfer cylinder (02; 07) according to claim 20, characterized in that the ratio of the circumference of transfer (02; 07) to forme cylinder (03; 08) is an integer.

22. Transfer cylinder (02; 07) according to claim 20, characterized in that at least one of the channels (14; 16; 17; 18) of the transfer cylinder (02; 07) in the region of a channel (12; 13) on the circumference of the forme cylinder ( 03, 08) rolls.

23. Transfer cylinder (02; 07) according to claim 20, characterized in that the forme cylinder (03; 08) cooperating with the transfer cylinder (02; 07) has two channels (12; 13) arranged one behind the other in the circumferential direction.

24. Transfer cylinder (02; 07) according to one of claims 1 or 23, characterized in that the channels (12; 13; 14; 16; 17; 18) are evenly spaced in the circumferential direction.

25. Transfer cylinder (02; 07) according to claim 24, characterized in that two channels (12; 13; 14; 16; 17; 18) are arranged offset from one another in the circumferential direction by approximately 180 °.

26. Transfer cylinder (02; 07) according to claim 23, characterized in that on the transfer cylinder (02; 07) cooperating forme cylinder (03; 08) in the longitudinal direction at least two printing forms (11) are arranged, which are almost over the entire Extend circumference and cover part of one of the channels (13).

27. Transfer cylinder (02; 07) according to claim 26, characterized in that the channel or channels (13) of the forme cylinder (03; 08) covered by the printing form (11) when the forme cylinder (03; 08) rolls against the transfer cylinder ( 02; 07) interact with a channel (14; 16; 17; 18) of the transfer cylinder (02; 07).

28. Transfer cylinder (02; 07) according to claim 1, characterized in that each channel (14; 16; 17; 18) of the transfer cylinder (02; 07) each has at least one holding device (26) for the printing blanket (09).

29. Transfer cylinder (02; 07) according to claim 19, characterized in that the transfer cylinder (02; 07) and the forme cylinder (03; 08) have the same circumference.