EP1515848B2 - Cylinder pair and cylinder of a printing unit of a rotary offset printing machine - Google Patents

Abstract

The printer unit (02) prints a web (03) with six axially adjacent printed pages and has a superstructure (04) in which the web is divided longitudinally into three part-webs (03a,03b,03c). A folder structure has at least one roller for conveying the part-webs and at least one folder device each driven mechanically separately by drive motors. At least two printing towers (01) each have at least two printer units and s folder structure which has two vertically staggered groups of at least two formers each and at least one group of leading rollers.

Description

The invention relates to a pair of cylinders and a cylinder of a printing unit of an offset rotary printing press according to the preamble of claims 1 or 11 and in each case a method for their respective use according to the preamble of claims 8 or 31.

From the WO 01/39977 A1 a printing unit of a rotary printing machine with at least one transfer cylinder and at least one forme cylinder is known, wherein the transfer cylinder has a channel for receiving one or more blankets and the forme cylinder at least two circumferentially successively arranged channels for receiving one or more printing plates, wherein at least one of the channels of Form cylinder is at least partially covered by a printing plate and wherein the at least partially covered channel of the forme cylinder in the region of a channel for receiving one or more blankets of the cooperating transfer cylinder rolls. The printing plates can be arranged with their ends offset in the circumferential direction to each other in different channels or the forme cylinder can have in the axial direction next to each other at least two printing plates or more circumferentially successively arranged printing plates, which in the case of several arranged over the entire circumference printing plates this forms with their ends in the circumferential direction can also be arranged alternately offset from one another.

The DE 22 20 652 A1 describes a device for securing flexible printing plates on the plate cylinder of a rotary printing press, the device having arranged on the same axis clamping jaw pairs, which are arranged about an axis parallel to the cylinder axis, extending over the entire length of the cylinder pivotally mounted in a cylinder channel in the cylinder body , A pair of clamping jaws consists of a clamping jaw and a clamping jaw, wherein both the clamping jaw and cooperating with the clamping jaw about an axis parallel to the cylinder axis pivotally mounted and actuated from the front side of the cylinder. In the described embodiment, four clamping jaw pairs in the cylinder circumferential direction are arranged alternately once on one half of the cylinder length and once on the other half of the cylinder length. To adapt the device to printing plates of different format widths is provided between two adjacent clamping jaw pairs a short clamping jaw pair as an extension piece such that it is coupled in the cylinder body with the adjacent clamping jaw pairs and thus pivoted in the same manner as the clamping jaw pairs can. In each cylinder channel two coaxially arranged connecting shafts are provided, which are rigidly connected to a arranged in one half of the cylinder length clamping jaw pair and make a torque of the other half belonging end face of the cylinder on the connected to the connecting shafts clamping jaw pair transferable. The connecting shafts are therefore also pivotally mounted in the cylinder channel as the associated with them clamping jaw pair.

From the DE 25 28 008 A1 is a pair of cylinders of a rotary printing machine with a 6/2-plate cylinder and a blanket cylinder known, wherein the plate cylinder of the middle pressure plate set to the both ends outer pressure plate sets and the blanket cylinder the middle blanket against the both ends outer blankets are arranged offset by a deliberately different from 90 ° angle , The non-angled ends of the elevators resting on the respective cylinder are held by holding means movable in wide cylinder pits. Opposite ends of elevators form between them a gap extending across the width of these elevators.

From the DE 199 24 786 A1 a device for clamping and / or clamping of flexible plates with folded Einhänbringeln is known, which protrude into a mounting slot of a cylinder supporting the plates, the mounting slot in the radial direction of the cylinder with an axis-parallel cylinder pit in conjunction, wherein in the cylinder pit in Moving clamping and / or clamping elements are provided within the interior of the base body, wherein the base body may consist of a plurality of shorter mutually detachable base bodies. The base body or bodies arranged in a row in the cylinder pit are connected to each other in a rotationally fixed manner, for example by means of a toothing, a first and a last of the base bodies being respectively connected in a rotationally fixed manner to an end coupling piece with its parts covering the cylinder pit on the flanks of the cylinder body Cylinder is attached for example by screwing.

From the DE 199 61 574 A1 is a cylinder of a web-fed rotary printing press known, wherein the lateral surface of the cylinder over its length divided into juxtaposed sections and in each section an opening is provided. This type of cylinder is not suitable for the arrangement of several lifts on the lateral surface of the cylinder along the circumference.

From the JP 10-071 694 A is also known such a single-circumferential cylinder, wherein the forme cylinder and the transfer cylinder are arranged in the printing unit such that an opened portion of the forme cylinder rolls on a closed portion of the transfer cylinder and vice versa.

From the DE 198 54 495 A1 is a printing cylinder with a channel with alternately arranged on the lateral surface closed and open areas known, wherein engage in the open areas tabs of a pressure cylinder to be mounted on the printing plate.

From the WO-A96 / 35581 a cylinder for printing machines is known, wherein an open to the lateral surface channel is closed with a flush on the lateral surface insert.

From the CH 345 906 A a single-circumference cylinder for printing presses is known, wherein on the cylinder in the axial direction of four elevators are arranged side by side, the elevators are each secured in an open to the lateral surface of the cylinder clamping channel, wherein the clamping channels adjacent lifts along the circumference of the cylinder offset from one another are.

The invention has for its object to provide a pair of cylinders or a cylinder of a printing unit of a rotary offset printing machine and a method for their respective use.

The object is achieved by a pair of cylinders or a cylinder with the features of claims 1 or 11 and by a method for their respective use with the features of claims 8 or 31.

The advantages achieved by the invention are, in particular, that openings in the lateral surface of the cylinder are provided only where they are required to hold the elevators. This reduces the risk of breakage on the lifts on a salaried cylinder for the elevators. Due to the staggered arrangement of the openings, the effect of the channel impact is simultaneously reduced. These measures contribute especially to cylinders of great length to smoothness and low vibration and thus also to print quality. In the channels are closed on the outer surface of the cylinder closed sections inexpensive filling elements without holding means for the lifts easy to install. The filling elements can be assembled to almost any length.

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

Fig. 1

eine perspektivische Ansicht eines Zylinders mit zwei Kanälen und vier nebeneinander anordenbaren Aufzügen;

Fig. 2

eine vereinfachte Darstellung eines Druckwerks mit einem 6/2-Formzylinder und einem Übertragungszylinder (Einfachumfang);

Fig. 3

eine perspektivische Ansicht eines Aufzugs;

Fig. 4

eine Teilschnittdarstellung eines Zylinders mit einem Kanal und einer darin angeordneten Vorrichtung zum Befestigen eines Aufzugs auf einem Zylinder;

Fig. 5

eine ebene Abwicklung von vier nebeneinander versetzt auf einem Zylinder angeordneten Aufzügen;

Fig. 6

eine vereinfachte perspektivische Ansicht eines Basiskörpers oder Füllelements.

Show it:

Fig. 1

a perspective view of a cylinder with two channels and four juxtaposed lifts;

Fig. 2

a simplified representation of a printing unit with a 6/2 forme cylinder and a transfer cylinder (single circumference);

Fig. 3

a perspective view of an elevator;

Fig. 4

a partial sectional view of a cylinder with a channel and a device arranged therein for securing an elevator on a cylinder;

Fig. 5

a flat development of four side by side offset on a cylinder arranged elevators;

Fig. 6

a simplified perspective view of a base body or filler.

In the Fig. 1 is a cylinder 01 of a printing unit of a rotary printing press, in particular offset rotary printing press, exemplified. This cylinder 01 can be designed as a forme cylinder 01a or as a transfer cylinder 01b and can be in the circumferential direction with z. B. an elevator and axially, ie its length L with z. Four elevators 02a; 02b; 02c; 02d so that there are four vertical or horizontal lifts on cylinder 01 ( Fig. 5 ).

In a forme cylinder, the elevators are preferably designed as plate-shaped printing plates. In a transfer cylinder, the elevators are preferably rubber blankets each applied to a carrier plate, d. H. the elevators for the transfer cylinder are preferably formed as a metal blanket.

The printing unit can, for. Example, be designed as a 9-cylinder satellite printing unit in which four pairs each consisting of a forme cylinder 01 a and a transfer cylinder 01 b in a frame preferably in pairs diametrically preferably uniformly distributed around a common impression cylinder, so that through an employment of the cylinder pairs to the counter-pressure cylinder forces attacking each other, wherein the forme cylinder 01 a and transfer cylinder 01 b each have the features of the solution proposed here. The impression cylinder preferably has a smooth, d. H. closed lateral surface without openings.

Especially for the newspaper printing arrangements are favorable ( Fig. 2 ), in which a forme cylinder 01 a in its axial direction in a first row z. B. with six plate-shaped printing plates 02a; 02b; 02c; 02d; 02e; 02f and - in the Fig. 2 only indicated - on the not visible in the illustration page of the forme cylinder 01 a in a second row z. B. with another six plate-shaped printing plates 02g; 02h; 02i; 02J; 02k; 021 is occupied, so that the forme cylinder 01 a carries along its circumference one behind the other two plate-shaped printing plates. Such a forme cylinder 01 a rolls on a transfer cylinder 01 b, the z. B. axially with three juxtaposed rubber blankets 02m; 02n; 02o is occupied, with each rubber blanket 02m; 02n; 02o spans the practically full extent of the transfer cylinder 01 b. The rubber blankets 02m; 02n; 02o have in this example twice the width and length of the plate-shaped printing plates 02a to 02l. The total with z. B. twelve plate-shaped printing plates 02a to 02l occupied form cylinder 01a and the total of z. B. two rubber blankets 02m; 02n; 02o occupied transfer cylinder 01 b in this case preferably have the same geometric dimensions with respect to the length L of their bale and its circumference. The plate-shaped printing plates 02a to 02l are with their respective ends 03; 04 on the forme cylinder 01 a in two on the circumference z. B. offset by 180 ° channels 11; 12 attached, whereas the respective ends 03; 04 of rubber blankets 02m; 02n; 02o are held in at least one channel 11 '. The forme cylinder 01 a and the transfer cylinder 01 b are arranged in the printing unit such that their respective channels 11; 11 'roll on each other. For the sake of completeness, it is noted that the forme cylinder 01 a may also be occupied by elevators designed as panorama printing plates, so that each plate-shaped printing form in each case contains two printed image pages. In this case, those in the Fig. 2 for the elevators assigned reference numerals 02a to 02l on the printed image pages, wherein the printed image pages 02a; 02b and 02c, respectively; 02d and 02e, respectively; 02f or 02g; 02h or 02i; 02j or 02k; 02l are each arranged on a panoramic printing plate. Each print page can z. B. correspond to a newspaper page. An arrangement of six newspaper pages juxtaposed in the axial direction of the forme cylinder 01a is advantageous.

If now, as will be described later, elevators are arranged offset in the circumferential direction of the cylinder to each other, that means in the case of using panoramic printing plates that not the individual printed pages, but to be fastened on the lateral surface 13 of the cylinder 01 a, in each case two Printed pages existing panoramic printing plates are arranged offset from each other. In order to allow a staggered arrangement of elevators, in a cylinder with two channels, the elevators must either fully span the cylinder circumferentially, with both ends of the same elevator fixed in the same channel and the ends of an adjacent elevator in the other channel, or are in the Cylinder more than two channels provided, such. B. four channels, each offset by 90 ° to each other, so each z. B. two elevators circumferentially one behind the other can be arranged, the ends of each elevator are mounted in two different, each offset by 180 ° channels and adjacent elevators are secured in the offset by 90 ° channels.

The cylinder 01; 01a; 01b has a diameter D1 of, for example, 160 mm to 340 mm, preferably between 280 mm and 300 mm. The axial length L of the bale of the cylinder 01, 01a; 01b is z. B. in the range between 1200 mm and 2400 mm, preferably between 1900 mm and 2300 mm ( Fig. 1 ). A plate-shaped printing plate or a support plate for a rubber blanket is usually made of a flexible, but otherwise dimensionally stable material, eg. B. of an aluminum alloy, and has two opposite, in or on the cylinder 01; 01 a; 01 b to be fastened ends 03; 04 with a material thickness M of z. B. 0.2 mm to 0.4 mm, preferably 0.3 mm, said ends 03; 04 for training Einhänbringeln 06; 07 each along a bending line 08; 09 with respect to the extended length I of the elevator 02a to 02o by an angle α; β are bent between 40 ° and 140 °, preferably 45 °, 90 ° or 135 ° ( Fig. 3 ). When only a single elevator 02m to 02o is applied in the circumferential direction of the cylinder 01b, the length l of the elevator 02m to 02o corresponds to almost the length of the circumference of the cylinder 01b.

In the in the Fig. 1 Example shown, in which the explanation of the invention is based in the following, a first channel 11 and a second channel 12 are provided in the cylinder 01, wherein both channels 11; 12 extend continuously in the direction of the length L of the cylinder 01 and in the direction of its circumference z. B. are offset by a 180 ° spanning circular arc to each other. To avoid imbalance of the rotating cylinder in the printing cylinder 01, it is advantageous, the channels 11; 12 equidistant, ie to arrange at equal distances from each other. A variant not according to the invention in the Fig. 1 shown arrangement with continuous channels 11; 12 is when at least one of the channels 11; 12 extends only over a portion of the length L of the cylinder 01, wherein this portion does not necessarily have to be arranged on the edge of the lateral surface 13 of the cylinder 01, but may be located between the end faces of the cylinder 01 in the interior of the lateral surface 13 of the cylinder 01 , For manufacturing and practical reasons, however, it is advantageous, even a only over a portion of the length L of the cylinder 01 extending channel 11; 12 to connect with an end face of the cylinder 01, so that the non-continuous channel 11; 12 extends under a closed to the lateral surface of the cylinder portion. If in the in the Fig. 2 shown example of a 6/2-forme cylinder 01 a the channels 11; 12 z. In section B, in which the elevators 02c; 02d; 02i; 02j are fixed, in the lateral surface 13 a to the channels 11; 12 leading opening 14, the channels 11; Pass 12 to one end face of the forme cylinder 01 a either through the section A or C. The in the axial direction of the cylinder 01 a; 01b extending width of the sections A; B; C is preferably through the width of the elevators 02m; 02n; 02o defined on the transfer cylinder 01 b.

Both channels 11; 12 are in the interior of the cylinder 01 at a distance a of z. B. 4 mm to 10 mm, preferably 6 mm under the lateral surface 13 as a preferably circular bore through the cylinder 01 and each have a diameter D2 of z. B. 25 mm to 50 mm, preferably 30 mm. The ratio of the diameter D1; D2 from the cylinder 01 to the channel 11; 12 is thus preferably at 10; 1. When the cross-sectional area of the channels 11; 12 is not circular, the ratio of the cross-sectional areas of the cylinder 01 to one of the channels 11; Preferably at 100: 1, so that the cross-sectional area of the channels 11; 12 is comparatively small to that of the cylinder 01.

In the in the Fig. 1 shown example, both channels 11; 12 in its longitudinal direction in so many sections A; B; C; D split, as elevators 02a; 02b; 02c; 02d can be arranged side by side on the lateral surface 13 of the cylinder 01, wherein the sectionwise division of the lateral surface 13 of those of the channels 11; 12 corresponds. The channels 11; 12 have in some of their sections A; B; C; D a narrow, slot-shaped opening 14 to the lateral surface 13 of the cylinder 01 on ( Fig. 5 ). It is advantageous if in the circumferential direction of the cylinder 01 with respect to the same section A; B; C; D a provided with an opening 14 channel 11 with a closed to the lateral surface 13 of the cylinder 01 channel 12 alternates. This results in terms of the channels 11; 12 both in the circumferential direction and in the longitudinal direction of the cylinder 01, an alternating arrangement of openings 14 in the sections A; B; C; D.

The slot width S of the opening 14 is less than 5 mm and is preferably in the range of 1 mm to 3 mm ( Fig. 4 ).

As the Fig. 5 can recognize, corresponds in this example, the number of in each channel 11; 12 arranged side by side in the longitudinal direction, provided with an opening 14 sections A; B; C; D half of the length L of the cylinder 01 offset juxtaposed elevators 02a; 02b; 02c; 02d. If the lateral surface 13 of the cylinder 01 is occupied in the circumferential direction next to each other with more than one elevator, more than two, each spaced in a particular circular arc channels or sections of channels are provided and it results from the larger number of elevators complex occupancy arrangements on the Lateral surface 13 of the cylinder 01.

In this example, the number of elevators 02a; 02b; 02c; 02d and sections A; B; C; D for simplicity, each chosen to four, here each section A; B; C; D ¼ the length L of the cylinder 01 has. As the Fig. 5 indicated in a developed view of the lateral surface 13 of the cylinder 01, all elevators are 02a; 02b; 02c; 02d on the lateral surface 13 of the cylinder 01 in the axial direction next to each other and the elevators 2b and 02d offset to the elevators 2a and 2c arranged such that these elevators 2b and 02d cover the sections B and D of the channel 12, whereas the elevators 2a and 2c Cover the sections A and C of the channel 11. The channel 11 has only in the sections B and D an opening 14 to the lateral surface 13 of the cylinder 01, while the channel 12 in the sections A and C each have a corresponding opening 14. The elevators 02a; 02b; 02c; 02d span in this example in each case the entire circumference of the cylinder 01. Thus, the ends 03; 04 of the elevators 02a; 02c fixed in the same channel 12, whereas the ends 03; 04 of the elevators 02b; 02d are secured in the other channel 11. Every elevator 02a; 02b; 02c; 02d thus covers each section A; B; C; D one of the two channels 11; 12, while he with his two ends 03; 04 in the other channel 11; 12 is attached. In this example, with reference to a across all sections A; B; C; D and on the lateral surface 13 of the cylinder 01 in parallel with a channel 11; 12 extending line whose position by the location of a channel 11; 12 is given, each section adjacent to an opening 14 of a closed to the lateral surface 13 of the cylinder 01 section. Along this line, the openings 14 introduced into the lateral surface 13 of the cylinder 01 are aligned with each other.

The at the ends 03; 04 of each elevator 02a to 02o molded suspension legs 06; 07 are inserted into the respective opening 14. It is advantageous to mount in each case one suspension leg 06 of each elevator 02a to 02o in a form-fitting manner on a first wall 17, wherein this first wall 17 is bounded by a in the production direction P of the cylinder 01; 01 a; 01 b leading edge 16 of the opening 14 to the interior of the channel 11 ';11; 12 extends. The angle α formed at one end 03 of the elevator 02a to 02o preferably corresponds to the angle α which extends between this first and the interior of the channel 11 ';11; 12 extending wall 17 and an imaginary, resting on the opening 14 tangent T results. The other suspension leg 07 of each elevator 02a to 02o can be applied to a second wall 19, wherein this second wall 19 of a in the direction of production P of the cylinder 01; 01 a; 01 b trailing edge 18 of the opening 14 to the interior of the channel 11 ';11; 12 extends. Again, the angle β formed at one end 04 of the elevator 02a to 02o advantageously corresponds to the angle β which extends between this second and the interior of the channel 11 ';11; 12 extending wall 19 and an imaginary, resting on the opening 14 tangent T gives ( Fig. 3 and Fig. 4 ).

As in Fig. 4 is shown, is for fixing the elevators 02a to 02o on the lateral surface 13 of the cylinder 01; 01 a; 01b in those sections A; B; C; D of the channel 11 ';11; 12, which have an opening 14 to the lateral surface 13, a holding device is provided, wherein the holding device z. B. at least from a holding means 21, z. B. a clamping piece 21, and a spring element 22 is made. The inserted into the opening 14 Suspension leg 07 ( Fig. 3 ) at the trailing end 04 of the elevators 02a to 02o is preferably applied to the second wall 19 of the opening 14 and pressed there by the clamping piece 21 by a force exerted by the spring element 22 on the clamping piece 21 force F. To release the clamping is in the channel 11 ';11; 12 an adjusting means 23 is provided, which counteracts in its actuation of the force exerted by the spring element 22 on the clamping piece 21 force F and the clamping piece 21 pivots away from the second wall 19 of the opening 14.

For easier mounting of the holding device in the channel 11 ';11; 12 is provided to arrange the preferably consisting of at least one clamping piece 21 and a spring element 22 holding device in a base body 24, wherein this base body 24 is preferably designed substantially as a cylindrical hollow body whose outer diameter D3 is slightly smaller than the diameter D2 of a channel 11 ';11; 12 is and due to its design in the channel 11; 11; 12 is supported, wherein the clamping piece 21 is pivotally mounted in the interior or at the bottom 27 of this base body 24. It is advantageous, the support of the base body 24 in the channel 11 ';11; 12 to be combined with a rotation of the base body 24 by, for example, on the base body 24, a stop is formed, the z. In the channel 11 ';11; 12 or at one of the edges 16; 18 of the opening 14 extending walls 17; 19 supported. Due to the considerable lengths of sections A; B; C; D, each also depending on the length L of the bale of the respective cylinder 01; 01 a; 01b vary in size, is provided for ease of adaptation to any length required for them, which for each section A; B; C; D required base body 24 is not integral, but the base body 24 as compared to the lengths of the sections A; B; C; D short section with the length I1 to manufacture, in which case several similar base body 24 in the channel 11 ';11; 12 for the required length of sections A; B; C; D strung together. Each base body 24 can for its preferably positive connection end-side with a tongue and groove connection 28; Be provided 29 or connector. The length I1 of the manufactured as a piece base body 24 may, for. B. between 30 mm and 100 mm and preferably 60 mm ( Fig. 6 ).

In sections A; B; C; D, in which a holding device for securing a Einhänlegeels 06; 07 is not required by one of the elevators 02a to 02o, ie R. in sections A; B; C; D without opening 14, the introduction of a provided with a holding device base body 24 in the channel 11 ';11; 12 neither necessary nor economical. For these sections A; B; C; D filling elements 26 are provided which may be similar in their outer contour of those of the base body 24, wherein the filling elements 26 have in their interior, however, no holding device and thus are less expensive ( Fig. 6 ). The filling elements 26 are based on the length of the sections A; B; C; D preferably designed as comparatively short sections with a length I2, wherein the length I2 as well as the length I1 of the base body 24 z. B. between 30 mm and 100 mm and may be preferably 60 mm. Thus, in each section A; B; C; D of a channel 11 ';11; Preferably, groups of about five to six base bodies 24 or filling elements 26 are arranged, these groups in turn being arranged alternately.

It is advantageous to design the filling elements 26 in such a way that they can be replaced by a simple processing step, for. B. by cutting or sawing, can be shortened to any length. The base body 24 and the filling elements 26 are preferably made of a plastic as an injection molded part or of another easily workable material. It is intended, everywhere in those sections A; B; C; D in the channel 11; 12 to arrange filling elements 26 lined up, which are closed, d. H. the to the lateral surface 13 of the cylinder 01; 01 a, 01 b have no opening 14. In order to connect the individual filling elements 26 with one another or in each case a first or last filling element 26 in a row of a plurality of filling elements 26 with one in the same channel 11; 12 arranged base body 24 to connect, the filling elements 26 on its end face 32, the same tongue and groove connection 28; In order to obtain the filling element 26 functional in terms of its connectability to other filling elements 26 or base bodies 24 after a shortening in its length I2, the groove 28 introduced in it with a length I3 over a large part of Length I2 of the filling element 26 executed, wherein the length I3 can be up to 70% of the length I2.

As adjusting means 23 for the holding device in the base bodies 24 is preferably one with a pressure medium, for. B. compressed air, acted upon hose provided in the channel 11 '; 11; 12 advantageously continuously from one to the other end face of the cylinder 01; 01 a; 01 b can be laid. At least the hose, i. H. the adjusting means 23 laid there where a clamping piece 21 is to be operated. The adjusting means 23 for the holding device is thus preferably operated remotely, in particular pneumatically, so that the holding device of a closed operating position in which they have at least one end 03; 04 from one of the elevators 02a to 02f; 02g to 02l; 02m; 02n; 02o stops, changes to an open operating position.

It is advantageous to also design the filling elements 26 as a substantially cylindrical hollow body. In this embodiment, both the base body 24 and the filling elements 26 on a through hole 31 through which in a juxtaposition of the base body 24 and filling elements 26 in the same channel 11; 12, the hose can be passed. In particular, when the through hole 31 in the base bodies 24 and filling elements 26 arranged eccentrically or with respect to a line passing through their respective center Oi Sy, the center O and extending through it line Sy in the same cross-sectional plane XX, is configured asymmetrically, the tongue and groove connection 28; 29 or connector are used by their arrangement and shape to line up the base body 24 and filling elements 26 both with each other and to each other with its through hole 31 in alignment. When the base bodies 24 in the channel 11; 12 are arranged against rotation, is due to the positive connection of all in the same channel 11; 12 arranged base body 24 and filling elements 26 and a sufficient rotation of the filling elements 26 achieved. If necessary, the same anti-rotation can be formed on the filling elements 26 as on the base bodies 24. A continuous from one to the other end face of the cylinder 01; 01 a; 01 b arranged adjusting means 23 allows the holding device in a plurality of base bodies 24 in the same channel 11 ';11; 12 are arranged to operate simultaneously and together. It is advantageous to ensure that at least all the holding devices which are in the same section A; B; C; D of a channel 11 ';11; 12 are arranged, can be operated simultaneously and together. This embodiment results in that in different sections A; B; C; D arranged holding devices are partially operable and thus independently have their open operating position or their closed operating position. Elevators 02a to 02o in different sections A; B; C; D can thus be kept and solved individually and independently.

In a further embodiment, at least the adjusting means 23 is formed as a spindle, for. B. as an eccentric spindle, in the channels 11 ';11; 12 is arranged. Optionally, a clamping piece 21 may be formed directly on the spindle or connected thereto. With one of an end face of the cylinder 01a; 01b torque applied to the spindle may include one or more retainers in the channels 11 ';11; 12 are operated. For example, a spindle may come from an end face of the cylinder 01a; 01b in the channel 11 ';11; 12 by a at the edge of the cylinder 01; 01a; 01b arranged section A or C ( Fig. 2 ) in the relevant channel 11 ';11; 12 no opening 14 to the lateral surface 13 of the cylinder 01a; 01b extend, and a holding device in the section B, in the respective channel 11 ';11; 12 to the lateral surface 13 of the cylinder 01a; 01b has an opening 14, actuate. It can also be provided that in the same channel 11 ';11; 12 z. In sections A and C, respectively, from the face of the cylinder 01a; 01b operable spindles are introduced, these sections A; C each have an opening 14 to the lateral surface 13 of the cylinder 01a; 01b, whereas in section B, neither an opening 14 nor an adjusting means 23 or a spindle are provided.

Regardless of how the channel 11 'or channels 11; 12 in the cylinder 01; 01 a; 01 b are configured, whether they consistently from one to the other end face of the cylinder 01; 01 a; 01 b are or not according to the invention only in the respective sections A; B; C; D are formed as sections, applies according to the solution proposed here for a cylinder 01; 01 a; 01 b with the circumference U and the length L, wherein the lateral surface 13 of the cylinder 01; 01 a; 01 b over the length L in at least three juxtaposed sections A; B; C; D is divided, that the lateral surface 13 in at least three sections A; B; C; D each having at least one slot-shaped opening 14, wherein at least two openings (14) of a section A; B; C; D to the openings 14 of another section A; B; C; D with respect to the circumference U of the cylinder 01; 01 a; 01 b are arranged offset from each other. In this case, preferably two in two different sections A are aligned; B; C; D arranged openings 14 with each other. Each opening 14 opens at least a portion of a below the lateral surface 13 of the cylinder 01; 01 a; 01 b extending channel 11 '; 11; 12th

Using a cylinder 01 according to the invention; 01 a; 01 b results z. B. a printing unit of an offset rotary printing machine with at least one on a transfer cylinder 1 b rolling forme cylinder 01 a, wherein the forme cylinder 01 a axially and along its circumference U z. B. at least two elevators 02a to 021 and the transfer cylinder 1 b axially z. B. at least two elevators 02m to 02o, wherein at least two of the forme cylinder 01a arranged in the axial direction of elevators 02a to 02l along the circumference U are arranged offset from each other. Preferably, the forme cylinder 01a has at least four elevators 02a to 02l axially, wherein the elevators 02a to 021 are arranged offset in pairs on the forme cylinder 01a in its axial direction. In particular, the forme cylinder 01a can have six elevators 02a to 021 axially, which are arranged offset in pairs on the forme cylinder 01a in its axial direction. In a printing unit of this type, the elevators 02m to 02o of the transfer cylinder 1 b relative to its circumference U preferably as long as two elevators 02a to 02l of the forme cylinder 01a, so in this printing a double-circumference form cylinder 01 a and a single-circumference transfer cylinder 1 b interact and roll on each other.

It is advantageous to form this printing unit as described above as a 9-cylinder satellite printing unit. Because a printing unit with cylinders of great length, z. B. with a length up to 2400 mm, wherein the printing unit has a forme cylinder side by side preferably six newspaper pages in its axial direction, and having a cooperating with the forme cylinder transfer cylinder of appropriate length, especially at high rotational speeds tends to disturbing, the print quality to a considerable extent impairing bending vibrations, which are reinforced by the channel impact between the forme cylinder and the transfer cylinder. Therefore, it is advantageous that in particular cylinders of great length are used in a 9-cylinder satellite printing unit, because in a 9-cylinder satellite printing unit, each transfer cylinder can be supported on a central impression cylinder, the impression cylinder again from one to the first Transfer cylinder diametrically arranged second transfer cylinder is supported. The counter-pressure cylinder usually has a smooth, closed lateral surface, which supports the transfer cylinder over the entire surface. This arrangement of in conjunction with a channel impact reducing offset of the middle Gummidrucktuchs over the two outer rubber blankets ensures a high degree of vibration, smoothness and thus print quality. The advantage obtainable with the invention therefore consists in particular in that a low-vibration printing unit can be formed even for cylinders of great length, wherein measures taken on the cylinder can be realized in a favorable manner in terms of production engineering.

LIST OF REFERENCE NUMBERS

01

cylinder

01a

form cylinder

01b

transfer cylinder

02a to 02l

Elevator, printing form,

02m to 02o

Elevator, printing form, rubber blanket

03, 04

end up

05

-

06; 07

suspension leg

08; 09

elastic line

10

-

11 '; 11; 12

channels

13

lateral surface

14

opening

15

-

16

leading edge

17

first wall

18

trailing edge

19

second wall

20

-

21

Holding means; clamp

22

spring element

23

Actuating means; Tube; spindle

24

base body

25

-

26

filler

27

Reason (24)

28

groove

29

feather

30

-

31

Through Hole

32

front

A, B, C; D

sections

D1

Diameter of the cylinder

D2

Diameter of the channel

D3

outer diameter

U

Circumference of the cylinder

M

material thickness

P

production direction

S

slot width

F

force

a

distance

L

length

O

Focus

sy

line

X X

Cross-sectional plane

I

length

I1

length

I2

length

I3

length

Claims (31)

1. A cylinder pair of a printing couple of a rotary offset printing press, comprising a forme cylinder (01 a) and a transfer cylinder (01 b),

   - wherein an axial length (L) of the forme cylinder (01 a) and of the transfer cylinder (01 b) is subdivided into a plurality of portions (A; B; C; D) following one after the other,

   - wherein at least one packing (02a to 02f; 02g to 02l; 02m; 02n; 02o) is arranged in each case in the portions (A; B; C; D),

   - wherein the forme cylinder (01 a) and the transfer cylinder (01 b) in each case have openings (14) leading into channels (11'; 11; 12) which extend in the axial direction below their generated face (13), for the insertion of the ends (03; 04) of packings (02a to 02f; 02g to 02l; 02m; 02n; 02o),

   - wherein at least one opening (14) is formed in the forme cylinder (01a) for each printing forme (02a to 02f; 02g to 02l) and at least one opening (14) is formed in the transfer cylinder (01 b) for each blanket (02m; 02n; 02o),

   - wherein at least one opening (14) in the forme cylinder (01 a) rolls on at least one opening (14) in the transfer cylinder (01 b),

   - wherein all the openings (14) in the forme cylinder (01 a) following one after the other in the axial direction are in alignment with one another and result in a continuous opening (14),

   - wherein the forme cylinder (01 a) is covered in its axial direction with the number - equal to the transfer cylinder (01 b) - or with a larger number of printing formes (02a to 02f; 02g to 021) adjacent to one another and along its periphery (U) with two printing formes (02a to 02f; 02g to 02l),

   - wherein the width of a printing forme (02a to 02f; 02g to 02l) corresponds to the width of a blanket (02m; 02n; 02o), or the widths of a plurality of printing formes (02a to 02f; 02g to 02l) are complementary to the width of a blanket (02m; 02n; 02o),

   characterized in that

   - the transfer cylinder (01 b) is covered in its axial direction with at least three blankets (02m; 02n; 02o) adjacent to one another and along its periphery (U) with one blanket (02m; 02n; 02o),

   - the openings (14) in portions (A; B; C; D) adjacent in the axial direction of the transfer cylinder (01 b) are offset by 180° in the peripheral direction,

   - the width, extending in the axial direction, of each opening (14) formed in the transfer cylinder (01 b) corresponds in each case to the width of a portion (A; B; C; D) covered with one of the blankets (02m; 02n; 02o),

   - openings (14) axially spaced in the axial direction of the transfer cylinder (01 b) by at least one closed portion (A; B; C; D) of the generated face (13) are in alignment with one another,

   - the channels (11'; 11; 12) of the transfer cylinder (01 b) are made continuous from one end face of the said transfer cylinder (01 b) to the other.
2. A cylinder pair according to Claim 1, characterized in that the width of a blanket (02m; 02n; 02o) corresponds to the width of two printing formes (02a to 02f; 02g to 02l).
3. A cylinder pair according to Claim 1, characterized in that the printing formes (02a to 02f; 02g to 02l) are equally wide in each case.
4. A cylinder pair according to Claim 1, characterized in that the blankets (02m; 02n; 02o) are equally wide in each case.
5. A cylinder pair according to Claim 1, characterized in that the blankets (02m; 02n; 02o) have a dimensionally stable carrier plate.
6. A cylinder pair according to Claim 1, characterized in that at least one holding apparatus is arranged in portions - extending below opened portions (A; B; C; D) of the generated face (13) - of channels (11'; 11; 12) of the forme cylinder (01 a) and of the transfer cylinder (01 b).
7. A cylinder pair according to Claim 1, characterized in that at least one filling element (26) without a holding apparatus is arranged in portions - extending below closed portions (A; B; C; D) of the generated face (13) - of channels (11'; 11; 12) of the forme cylinder (01 a) and of the transfer cylinder (01 b).
8. A method of using a cylinder pair according to Claim 1, characterized in that the transfer cylinder (01 b) is arranged so as to co-operate with a counter impression cylinder.
9. A method according to Claim 8, characterized in that the transfer cylinder (01 b) is arranged so as to co-operate with a counter impression cylinder having a closed generated face (13) without openings (14).
10. A method according to Claim 8, characterized in that the cylinder pair is inserted in a four-fold arrangement around a common counter impression cylinder so as to form a 9-cylinder satellite printing couple.
11. A cylinder (01; 01 a; 01 b) of a printing couple of a rotary offset printing press,

    - wherein an axial length (L) of the cylinder (01; 01 a; 01 b) is subdivided into a plurality of portions (A; B; C; D) following one after the other,

    - wherein the portions (A; B; C; D) are covered, in their width extending in the axial direction, with at least one packing (02a to 02f; 02g to 021; 02m; 02n; 02o) in each case,

    - wherein the cylinder (01; 01 a; 01 b) has openings (14) leading into channels (11'; 11; 12) which extend in the axial direction below its generated face (13), for the insertion of the ends (03; 04) of packings (02a to 02f; 02g to 021; 02m; 02n; 02o),

    - wherein an opening (14) is formed in the cylinder (01; 01 a; 01 b) for each packing (02a to 02f; 02g to 02l; 02m; 02n; 02o),

    - wherein the cylinder (01; 01 a; 01 b) is covered in its axial direction with at least three packings (02a to 02f; 02g to 02l; 02m; 02n; 02o) adjacent to one another and along its periphery (U) with at least one packing (02a to 02f; 02g to 021; 02m; 02n; 02o),

    - wherein a holding apparatus is provided in the channels (11'; 11; 12),

    - wherein the holding apparatus optionally has a closed operative position or an opened operative position and in its closed operative position holds at least one end (03; 04) of one of the packings (02a to 02f; 02g to 02l; 02m; 02n; 02o),

    - wherein the cylinder (01; 01 a; 01 b) is supported on a counter-impression cylinder which co-operates with it and which has a closed generated face,

    characterized in that

    - the openings (14) in portions (A; B; C; D) adjacent in the axial direction of the cylinder (01; 01 a; 01 b) are arranged offset in the peripheral direction,

    - openings (14) axially spaced by at least one closed portion (A; B; C; D) of the generated face (13) are in alignment with one another,

    - holding apparatus in different portions (A; B; C; D) with openings (14) in alignment with one another are in the opened operative position or the closed operative position locally in a manner independent of one another,

    - the channels (11'; 11; 12) of the cylinder (01; 01 a; 01 b) are made continuous from one end face of the said cylinder (01; 01 a; 01 b) to the other.
12. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the width, extending in the axial direction, of each opening (14) formed in the cylinder (01; 01 a; 01 b) corresponds in each case to the width of at least one of the packings (02a to 02f; 02g to 02l; 02m; 02n; 02o).
13. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the holding apparatus has a control means (23) capable of being actuated in a remote-controlled manner in order to carry out a change from its closed to its opened operative position and/or from its opened operative position to its closed operative position.
14. A cylinder (01; 01 a; 01 b) according to Claim 13, characterized in that the control means (23) is capable of being actuated in a pneumatic manner.
15. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the holding apparatus changes its operative position as a result of a hose which is arranged in the channel (11'; 11; 12) and which is capable of being acted upon by a pressure medium.
16. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the cylinder (01; 01 a; 01 b) is constructed in the form of a transfer cylinder (01 b).
17. A cylinder pair according to Claim 1, characterized in that the openings (14) in the cylinders (01 a; 01 b) have a slot width (S) of less than 5 mm in their respective peripheral direction.
18. A cylinder pair according to Claim 1, characterized in that the cylinders (01 a; 01 b) have an axial length (L) of between 1200 mm and 2400 mm.
19. A cylinder pair according to Claim 1, characterized in that the cylinders (01 a; 01 b) have a diameter (D1) of between 160 mm and 340 mm.
20. A cylinder pair according to Claim 1, characterized in that each channel (11'; 11; 12) is arranged at a distance (a) of from 4 mm to 10 mm below the generated face (13) of the respective cylinder (01 a; 01 b).
21. A cylinder pair according to Claim 1, characterized in that each channel (11'; 11; 12) is constructed in the form of a circular bore.
22. A cylinder pair according to Claim 1, characterized in that each channel (11'; 11; 12) has a diameter (D2) of from 25 mm to 50 mm.
23. A cylinder pair according to Claim 1, characterized in that a packing (02a to 02l) constructed in the form of a printing forme has at least one print-image location.
24. A cylinder pair according to Claim 1, characterized in that the printing forme (02a to 02l) is constructed in the form of a panoramic printing plate.
25. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the openings (14) in the peripheral direction of the cylinder (01; 01a; 01b) have a slot width (S) of less than 5 mm.
26. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the cylinder (01; 01 a; 01 b) has an axial length (L) of between 1200 mm and 2400 mm.
27. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the cylinder (01; 01 a; 01 b) has a diameter (D1) of between 160 mm and 340 mm.
28. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that each channel (11'; 11; 12) is arranged at a distance (a) of from 4 mm to 10 mm below the generated face (13) of the cylinder (01; 01 a; 01 b).
29. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that each channel (11'; 11; 12) is constructed in the form of a circular bore.
30. A cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that each channel (11'; 11; 12) has a diameter (D2) of from 25 mm to 50 mm.
31. A method of using a cylinder (01; 01 a; 01 b) according to Claim 11, characterized in that the cylinder (01; 01 a; 01 b) is arranged in a 9-cylinder satellite printing couple.

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