DE202008009136U1 - Satellite printing unit - Google Patents

Abstract

Satellite printing unit (1) consisting of at least one impression cylinder (4) and four around each impression cylinder (4) arranged transfer cylinders (2), wherein on each transfer cylinder (2) at least one forme cylinder (3) is arranged and at least one Dampening unit (6) and an inking unit (5) dampening solution and paint on the Apply form cylinder (3), characterized in that the ratio of Scopes of transfer cylinders (2) to impression cylinder (4) is 1 to 2 or 1 to 3 or 1 to 4 and based on a perpendicular to the installation level of the satellite printing unit extending plane (9) the contact points of the transfer cylinder (2) and the impression cylinder (4) on the left or right semicircle plane the circumference of the impression cylinder or cylinders (4) are arranged, wherein the dampening units (6) and / or the inking units (5) with respect to a vertically through the connecting plane of the two impression cylinders (4) extending center plane are arranged mirror-symmetrically.

Description

The The invention relates to a satellite printing unit consisting of at least an impression cylinder and four transfer cylinders arranged around each impression cylinder, being on each transfer cylinder at least one forme cylinder is arranged and at least one dampening unit and an inking unit applies dampening solution and ink to the forme cylinder.

On The market known compact printing presses are constructed as a rubber-rubber assembly. In a rubber-rubber arrangement of the printing unit to be printed Train in the Schön- and reverse printed on both sides. To a two-sided four-color printing (4/4) to ensure are the inking units of four on top of each other pressure points of different colors (black, magenta, Cyan and yellow).

All four on top of each other lying inking units are identical. To equality in the inking to reach are the arrangements of the four superimposed cylinder groups also identical in bridge arrangement executed.

The Arrangement of the cylinder groups in bridge construction has several disadvantages, For example, in the wet offset method to compensate for the Fanouts (width expansion of the paper web due to fountain solution entry) before the enemas in the second, third and fourth rubber-gum gap a fanout compensation must be installed. Furthermore need the transfer cylinders or blanket cylinder due to the large distance from each other to Purification of each one individual washing device, so that in the present case, four washing devices per print page must be provided.

Of the The inventor has therefore set itself the task of a new satellite printing unit available too which can be implemented as a compact printing unit and in the at the same time the fanout effect occurs to a lesser extent or not at all.

These Task is by a satellite printing unit according to claim 1 solved.

Of the Inventor has recognized that a satellite printing unit at the specific scope ratio from transfer cylinder to counter-pressure cylinder or satellite cylinder and in the the voltage applied to the satellite cylinder transfer cylinder in one be arranged in a special way due to the favorable Abständer the transfer cylinder less or not at all tends to Fanouteffekt. In addition, this allows one especially the use of identical inking and dampening components and thus a compact and modular satellite printing unit.

Based on the findings, the inventor proposes a satellite printing unit consisting of at least one impression cylinder and four transfer cylinders arranged around each impression cylinder, wherein at least one forme cylinder is arranged on each transfer cylinder and at least one dampening unit and an inking unit apply dampening solution and ink to the forme cylinder to improve that the ratio of the circumference of transfer cylinder to impression cylinder 1: 2 or 1: 3 or 1: 4 and based on a plane perpendicular to the installation plane of the satellite printing unit level, the contact points of the transfer cylinder and the impression cylinder on the left or right semicircle level of the circumference the impression cylinder (s) are arranged, the dampening units ( 6 ) and / or the inking units ( 5 ) with respect to a perpendicular through the connecting plane of the two impression cylinders ( 4 ) extending center plane are arranged mirror-symmetrically.

hereby can the one above the other lying inking units and / or dampening units are identical, what in case of repair the compatibility and thus the interchangeability of components of the inking and / or dampening. So, for example Standard modules possible their transport is facilitated. Furthermore, this offers Satellite printing unit design benefits in terms of fanout effect, because the pressure points are very close to each other.

The paper handling is due to the large satellite cylinder circumference improved. A simpler ink supply is made possible because same colors lie horizontally opposite.

In addition, will a change of printing plates at full machine speed (Dynachange) per side of the satellite printing unit easy to realize, For example, if two satellite cylinders, this with a Motor to be driven.

alternative to the 9-cylinder satellite arrangement, the satellite printing unit Also be designed as a 10-cylinder satellite arrangement. A paper web wraps around partially two impression cylinders, wherein the dampening and / or Regarding the inking units one perpendicular through the connecting plane of the two impression cylinders extending center plane are arranged mirror-symmetrically. Here too can by the symmetrical structure identical inking and / or dampening or inking and / or dampening components are used.

The perimeter ratio from form cylinder to transfer cylinder To impression cylinder can be 1 to 1 to 2 or 1 to 1 to 3 or 1 to 1 to 4.

For the impression cylinder a satellite washing device is provided, the satellite washing device is arranged such that the surface of two adjacent impression cylinders is washable.

alternative or in addition it is convenient, if at least one washing device for the transfer cylinder arranged is. The washing device should be designed or arranged in such a way be that two surfaces of two adjacent transfer cylinders are cleanable. This allows the number of washing devices be significantly reduced.

Around with the new satellite printing unit different types of printing presses To equip high circulation numbers, it is advantageous if the bale length of the Impression cylinder, the transfer cylinder and the forme cylinder of a length of four, six, eight, or ten pending or recumbent newspaper pages equivalent.

alternative to that, the bale length can be the impression cylinder, the transfer cylinder and the forme cylinder of a length of five, seven or nine standing or lying newspaper pages.

Around to allow a pre-moistening are based on the direction of rotation of the forme cylinder first Dampeners and then arranged the inking units.

A Drive variant of the satellite printing unit sees a common Drive for a counter-pressure cylinder and these employed four transmission and four form cylinder.

Around a bridge drive can realize a common drive for every two transfer cylinders and two form cylinder can be arranged.

Also conceivable is a single engine concept, each with a drive for each Impression cylinder and each transfer cylinder and each forme cylinder is arranged.

It is advantageous if the impression cylinder material recesses have to save weight and preferably as a hollow cylinder accomplished are.

It be noted that the chutes or the balancing holes the previously known cylinder not as material recesses in the sense of this invention.

preferred Further developments of the invention will become apparent from the following Description. An embodiment The invention will be described by, but not limited to, with reference to the two drawings explained in more detail. there shows:

1 : Satellite printing unit;

2 : Further satellite printing unit.

Hereinafter, the present invention will be described with reference to FIGS 1 and 2 described.

The 1 shows a possible embodiment of the invention. The invention also includes 9-cylinder satellite assemblies; however, in 1 a satellite arrangement 1 shown, which is constructed as a 10-cylinder satellite. To the two impression cylinders 4 are in a special way four transfer cylinders 2 arranged. With reference to a plane perpendicular to the installation level of the satellite printing unit 9 , are the contact points of the transfer cylinder 2 and the impression cylinder 4 on the left or right semicircle plane of the circumference of the impression cylinder or cylinders 4 arranged. As a result, the pressure points are very close to each other, which has a favorable effect on the fanout effect.

At every transfer cylinder 2 is at least a form cylinder 3 arranged and at least one dampening unit 6 and an inking unit 5 transfer the dampening solution and the paint to the forme cylinder 3 ,

The special feature of the arrangement of the dampening units 6 and the inking units 5 is that these with respect to a through the impression cylinder 4 perpendicular to the installation level of the satellite printing unit 1 extending center plane are arranged mirror-symmetrically.

Furthermore, a special circumferential ratio of the cylinder is present, so is the scope of form cylinder 3 to transfer cylinder 2 to impression cylinder 4 in this version 1 to 1 to 2.

To the surfaces of the transfer cylinder 2 to wash is for every two transfer cylinders 2 a washing device 7 arranged. Similarly, is a washing device 8th for the two impression cylinders 4 arranged.

An in 1 not shown printing material can from the top of the satellite printing unit 1 introduced, the first impression cylinder 2 wrap around and be covered with four colors. Becomes the substrate web mirror-symmetrical to the center plane of the connection of both impression cylinders 4 through the second impression cylinder 2 led theoretically on a Bedruckstoffbahnseite an 8-color printing is possible. However, this web guide is preferably used for the Dynachange operation, ie only on an impression cylinder 4 a 4-color print is realized while on the other impression cylinder 4 , the transfer cylinder 2 are in pressure-off position, and thus on the forme cylinders 3 a printing plate change are available.

In an alternative web guide the printing material web, both impression cylinders are looped in an S-shape, and thus a two-sided four-color printing (4/4) possible.

2 shows another 10-cylinder satellite arrangement 1 that are different from the execution 1 differs only in the peripheral ratio of the cylinder. The scope of form cylinder 3 to transfer cylinder 2 to impression cylinder 4 is in this version 1 to 1 to 4.

1

Satellite printing unit

2

transfer cylinder

3

form cylinder

4

Impression cylinder

5

inking

6

dampening

7

Washing device transfer cylinder

8th

wash Impression cylinder

9

level

Claims (12)

Satellite printing unit ( 1 ) consisting of at least one impression cylinder ( 4 ) and four around each impression cylinder ( 4 ) arranged transfer cylinders ( 2 ), wherein at each transfer cylinder ( 2 ) at least one forme cylinder ( 3 ) is arranged and at least one dampening unit ( 6 ) and an inking unit ( 5 ) Dampening solution and paint on the forme cylinder ( 3 ), characterized in that the ratio of the peripheries of transfer cylinders ( 2 ) to impression cylinder ( 4 ) Is 1 to 2 or 1 to 3 or 1 to 4 and in relation to a plane perpendicular to the installation level of the satellite printing unit ( 9 ) the contact points of the transfer cylinder ( 2 ) and the impression cylinder ( 4 ) on the left or right semicircle plane of the circumference of the impression cylinder or cylinders ( 4 ), wherein the dampening units ( 6 ) and / or the inking units ( 5 ) with respect to a perpendicular through the connecting plane of the two impression cylinders ( 4 ) extending center plane are arranged mirror-symmetrically. Satellite printing unit according to claim 1, characterized in that the satellite printing unit is constructed as a 10-cylinder satellite arrangement with two counter-pressure cylinders ( 4 ). Satellite printing unit according to one of claims 1 and 2, characterized in that the peripheral relationships of forme cylinders ( 3 ) to transfer cylinder ( 2 ) to impression cylinder ( 4 ) 1 to 1 to 2 or 1 to 1 to 3 or 1 to 1 to 4. Satellite printing unit according to one of claims 2 to 3, characterized in that per satellite printing unit ( 1 ) a satellite washing device ( 8th ), wherein the satellite washing device ( 8th ) is arranged such that the surface of both adjacent impression cylinders ( 4 ) is washable. Satellite printing unit according to one of the preceding claims 1 to 4, characterized in that a washing device ( 7 ) for two transfer cylinders ( 2 ), wherein the washing device ( 7 ) is arranged such that two surfaces of two adjacent transfer cylinders ( 2 ) are washable. Satellite printing unit according to one of the preceding claims 1 to 5, characterized in that the bale length of the impression cylinders ( 4 ), the transfer cylinder ( 2 ) and the form cylinder ( 3 ) corresponds to a length of four, six, eight or ten standing or lying newspaper pages. Satellite printing unit according to one of the preceding claims 1 to 5, characterized in that the bale length of the impression cylinders ( 4 ), the transfer cylinder ( 2 ) and the form cylinder ( 3 ) corresponds to a length of five, seven or nine standing or lying newspaper pages. Satellite printing unit according to one of the preceding claims 1 to 7, characterized in that with respect to the direction of rotation of the forme cylinder ( 3 ) first the dampening units ( 6 ) and then the inking units ( 5 ) are arranged so that a pre-moistening is possible. Satellite printing unit according to one of the preceding claims 1 to 8, characterized in that a common drive for a counter-pressure cylinder ( 4 ) and to these employed four transmission ( 2 ) and four forme cylinders ( 3 ) is arranged. Satellite printing unit according to one of the preceding claims 1 to 8, characterized in that a common drive for every two transfer cylinders ( 2 ) and two forme cylinders ( 3 ) is arranged. Satellite printing unit according to one of the preceding claims 1 to 8, characterized in that in each case a drive for each Gegendruckzy cylinder ( 4 ) and each transfer cylinder ( 2 ) and each form cylinder ( 3 ) is arranged. Satellite printing unit according to one of the preceding claims 1 to 11, characterized in that the impression cylinders ( 4 ) Materialausnehmungen have to save weight and are preferably designed as a hollow cylinder.