EP1593509A2 - Printing machine with at least one printing unit - Google Patents

Abstract

The printing press has a control system for the operation of at least the inking mechanism, which has a display panel (01) to show representations of the settings of the ink sirens. The control system enables settings to be made for those inking zones which strike both sides of the printed article at the same time showing them simultaneously next to each other on the display panel, unless these sides are adjacent on the material web being printed.

Description

The invention relates to printing presses with at least one printing unit according to the The preamble of claim 1, 2 or 3.

Depending on a pattern to be printed, there are generally various ones Zones of printing plates in a printing press a different color consumption. To ensure that the areas of the printing plates with the same Surface texture transferred amount of color in different zones regardless of whose color consumption is always the same, must be in one supplying the printing plates Inking unit a constant over the entire width of the inking unit thickness of the Color layer can be realized independently of the color consumption of the individual zones. Therefor In general, inking units are used whose color output is in the width direction adjacent zones is independently adjustable.

The settings of the individual zones of the inking unit are modern Printing presses generally controlled at a control room, where a Operator to view the settings of each inking zone and manipulate them as needed. Conventionally, they are on one Display screen of such a control station, the settings of a variety of in the Ink fountain adjacent zones simultaneously displayed. A fine adjustment of Settings of the inking unit is generally based on an operator a printed with the current settings of the printing press printed product performed. By measuring the position of a strip - shaped zone in the Printed matter that leaves an unsatisfactory color impression, a can experienced operator in knowledge of the web guide in the printing press the corresponding zone of one of mostly several inking units in the printing press identify who is responsible for this impression and their attitudes manipulate to improve the color impression.

However, different color impressions can not only be made between zones of the same one They can also occur between different sides of a page finished printed product annoying noticeable, the impact on the Printed products are visible at the same time. If these simultaneously visible pages in correspond to the press side by side printed on the same web pages, so a user may be able to view these settings at the same time, they compare and manipulate them to achieve a satisfactory color reproduction. However, this is rarely the case; more often stir at the same time aufschlagbare sides of the produce printed matter from in various printing units of the printing press printed webs or not immediately adjacent to a same web printed pages.

DE 198 56 675 A1 relates to an automatic page identification of a Press. The pages are printed with an encoding to this to recognize a control station by means of an optical reader.

The invention is based on the object printing presses with at least one Create printing unit.

The object is achieved by the features of claim 1, 2 or 3.

The achievable with the present invention consist in particular that they one Operator conveniently a comparison of the color settings of Print pages that aufschlagbar in a finished printed product at the same time so that they improve a color impression, in particular for alignment the impressions of simultaneously aufschlagbarer sides, necessary changes of the Recognize inking settings quickly.

Appropriately, the control station of the printing press also allows manipulation the settings of each represented color zones.

In a simple embodiment of the printing press can be provided that a user can select any pairs of pages of the printed product to to view their inking settings on the display screen of the control console to let; however, it is more user-friendly and efficient when the control center itself is set to one of a user or to one of an optical Reader selected side each in the finished printed product at the same time to identify aufschlagbare page independently and belonging to both sides To display inking settings simultaneously. When the control desk to the Web guiding device of the printing press is coupled, it can be used to identify at the same time aufschlagbarer pages operating parameters of the web guide device such about the positions of turning bars, position and operating conditions of Use slitting devices, etc.

The coupling of the control station to the web guide device can serve to determine corresponding operating parameters from the web guide device; more often, however, will be the case that the control station of these operating parameters external source, eg. B. by electronic means or by entering through a Operator receives and the positions of moving parts of the Web guiding device controls based on these operating parameters.

When the printing machine is used to material webs, z. B. paper webs short Webs of different widths with a plurality of side by side to print, so there are necessarily color zones, depending on the width of the web too belong to different sides or two sides at the same time in variable portions belong. If a minimum and maximum width is set, the one in the Printing machine to be printed on the web, so is the amount of ink zones that may belong to different sides; d. h., for each side of the Printed matter can be given a set of color zones, which is always the belonging to the page in question or depending on the width of the track at least the possibility exists that they belong to the page. When the control room is set up, to each page of the printed product in each case the settings of complete set of assigned color zones, eliminating the need to in each case on the basis of the web width belonging to a given page Identify color zones.

If the setting of a color zone can always be manipulated via the control console, when displayed on the display screen, there is in this embodiment Ability to manipulate a color zone that belongs to a different page than the one who wants to manipulate the operator. To such erroneous operations can be provided that the control center, although independent of the each web width indicates a same set of ink zone settings that it but is able to recognize color zones based on the width of the processed web, which do not belong to the displayed page and manipulations of an operator to ignore such color zones.

Preferably, the control station is set to each case in the individual case based on the width of processed web to recognize which side of the finished printed product each zone of the inking unit, and to each page of the printed product only the settings to indicate those color zones that actually belong to that page.

With appropriate width of the processing path, it may happen that a Color zone in each case partially on different pages of the finished printed product eliminated. Such a color zone is therefore displayed with its settings every time when one of the two pages to which she belongs is displayed. It is therefore possible that an operator for such a color zone, when together with the others Color zones of a first page to which it belongs, a different setting selects as if the color zone coincides with the other color zones of the second page is pictured. If an operator for such a color zone two If different settings are specified, the control center will set the relevant color zone conveniently to an average between the two specified settings one. Preferably, this average is based on the proportion of the two sides concerned weighted at the relevant color zone.

If the different web widths with which the printing press is operated, a small number of discrete, not too different values, that can Problem of belonging a color zone to different pages also thereby be eliminated that at the inking at least two classes of ink zones with different widths are provided, wherein the ink zones of the smallest width each in groups of several color zones next to each other and are staggered, that the boundaries between pages at the different web widths each with Limits of the color zones of the smallest width to each other or to neighboring ones Color zones coincide.

Embodiments of the invention are illustrated in the drawings and are in Described in more detail below.

Show it:

Fig. 1

schematically a display screen of a control station for a printing press according to the invention;

Fig. 2

a schematic section through an inking unit of the printing press;

Fig. 3

a schematic plan view of the inking unit, in the boundaries between Printed pages are drawn on basis of a first web width;

Fig. 4

the top view of Fig. 3 with boundaries between pages based on a second web width;

Fig. 5

the inking unit with marked side boundaries on the basis of a third track width;

Fig. 6

a plan view of a modified embodiment of the inking unit.

A printing press comprises one or more printing units, each of which has at least one printing unit Zone-wise adjustable inking unit is assigned. There are a number of ways which one or more to be printed webs, z. B. paper webs short Lanes through the printing units are feasible to the tracks four-color or with to print different colors. A web guiding device in which the printed webs, optionally broken down into partial webs, turned and mixed be connected to the printing units, to the webs or from them obtained sublanes on top of each other. A folder is used for folding and Separating the superimposed webs to individual printed products. There a such structure of a printing machine is known in the art, needs to details this structure, unless they are specifically related to the present invention, here not to be discussed further.

Also, a control station for controlling operating parameters of individual modules of the Printing machine is known per se.

Fig. 1 shows schematically a display screen 01 of such a control station in one Operating mode that allows an operator to control the dosage of color in to set a selected inking unit of the printing press. On the display screen 01 are two groups of bars 02 to see, the two in one of the printing press produced, folded and isolated printed product aufschlagbaren simultaneously Correspond to pages. One of these pages is for example by entering a page number in the control room by an operator selectable. The other one shown side of the control center is automatically fixed, where he entered into it Control information uses the position of turning bars or other moving Elements in the web guiding device describes and the way the printed Sets webs in the web guide device. From the thus known way the Webs in the web guiding device, the control center is capable of for each simultaneously with the operator-selected page traceable page, by which area of which printing it has run and the appropriate settings of this area of the appropriate Select and display the inking unit.

With the help of known from computer technology selection means such as a a mouse or trackball controlled cursor 03 allows the operator respectively a bar 02 of one of the groups, highlighted in FIG. 1 by hatching, to manipulate the inking zone corresponding to this bar 02.

An inking unit 04 of the printing machine is in a highly schematic section in Fig. 2nd shown. A paint tray 06 is bounded on one side by a rotating roller 07. A color meter 08 at the bottom of the ink pan 06 is to form a small Spaltes employed on the roller 07. The width of the gap determines the rotation the roller 07 from the ink tray 06 entrained amount of ink. This gap width is with Help a set screw 09 controllable, the top of the bottom against the paint knife 08 pushes and this elastically deformed. A servomotor 11 rotates the screw 09 below the control of the control room, one at the control room by the operator set the desired gap width.

Instead of lying below color knives can also be located overhead colorimeter be used.

As can be seen in the plan view of the inking unit 04 in Fig. 3, the inking unit 04 a plurality of adjacent color knives 08, each individually a servo motor 11 are adjustable and thus form ink zones 08 of the inking unit 04, in which the amount of ink delivered regardless of the other color zones is adjustable.

The printing units of the printing machine considered here as an example are intended for printing four adjacent pages on webs with widths of 1,640 mm, 1,600 mm or 1,560 mm. The total width of the inking unit 04 is therefore 1,640 mm, of which 11 mm account for a non-printing zone 12 on the sides of the inking unit 04 and 22 mm on a non-printing zone 13 in the center of the inking unit 04. The remaining width take four groups of ten color knives 08 ₁ , each with 38.8 mm width, which correspond to the four sides substantially, and between each two of these groups a panoramic color zone 08 ₂ of 22 mm width.

When the inking unit 04 is used to print a web having the maximum width of 1,640 mm, the boundaries between the four are A; B; C; D designated sides, as indicated by dotted lines in Fig. 3, respectively centered in the panoramic color zones 08 ₂ and the non-printing zone 13. Each side A; B; C; D thus includes a total of eleven paint zones 08 ₁ ; 08 ₂ , namely in each case a group of ten color zones 08 ₁ and the half of one of the panoramic color zones 08 ₂ . Accordingly, on the display screen 01 of FIG. 1, each group comprises eleven beams 02 each with the gap width of the individual ink zones 08 ₁ ; 08 ₂ corresponding height, each corresponding to the color zones 08 ₁ ; 08 ₂ , to which they are assigned, are designated 08 ₁ and 08 ₂ .

The panoramic color zones 08 ₂ , since they each partially belong to two sides, each appear in representations of the color zone settings for two different simultaneously aufschlagbare page pairs. Assuming, as a simple example, that the printing machine produces an 8-sided product from a single, double-sided printed web, by longitudinally cutting the printed web between the pages B and C and superimposing and folding the partial webs thus obtained a panoramic color zone 08 _2, for example, at the same time belong to pages 2 and 7 and thus appear in the screen representations of the page pairs 2, 3 and 6, 7 and be changeable in both representations. In order to prevent an operator, if it adjusts the color settings for all pairs of pages in succession, when adjusting the page pair 6, 7 unintentionally reverses a setting for this panoramic color zone 08 ₂ , which they previously made in the presentation of pages 2, 3 has, it is provided that the control center first stores the settings selected by the operator for this panoramic color zone 08 ₂ and, after completion of the adjustment, sets the panoramic color zone 08 ₂ to a gap width which is an average of the two different settings selected by the operator equivalent. Since in the width of 1,640 mm considered here, the panoramic color zone 08 ₂ belongs equally to pages 2 and 7, the settings desired by the user for the two sides have the same weight in the calculation of the gap width actually set by the control station. If a panoramic color zone 08 belongs to _two different pages at different proportions, it is expedient to weight the settings selected for the two pages according to the proportion of these pages in the panoramic color zone 08 ₂ when calculating the actually set gap width.

Fig. 4 shows, projected on the same inking unit as in Fig. 3, as dotted lines, the edges of four sides on a web of 1,600 mm width. Of the four with A; B; C; D designated sides extend the two inner sides B and C respectively over one half of the central non-printing zone 13, the adjoining groups of the ten color zones 08 ₁ of 38.8 mm width and 1 mm of the panoramic color zone 08 _second The outer sides A and D occupy 21 mm of the panoramic color zones 08 ₂ and of the outwardly adjacent color zones 08 ₁ nine pieces and one on a width of 29.8 mm. Thus, in turn belong to each page eleven ink zones 08 ₁ ; 08 ₂ , and the representation of the ink zone settings on the display screen 01 is the same as shown in Fig. 1.

Fig. 5 shows pages A; B; C; D an even narrower track of 1560 mm width, projected onto the inking unit 04. Here, the panoramic color zones 08 ₂ belong to the inner pages B; C no longer on the web, so that the number of ink zones for these pages reduced to ten. The number of ink zones 08 ₁ ; 08 _{2 of} the two outer sides A; D, however, increases to twelve. In this case, the number of bars 02 in the group on the display screen 01 is variable. If the user has a page A; B; C; D of the printed product to be produced z. B. by specifying their page number selects to display their inking device settings on the display screen 01, determines the control center based on this page number and information stored in it about the web guide in the printing press between the printing unit and folder, which color zones 08 ₁ ; 08 _{2 of} the inking 04 extends this page in printing and displays their settings as a bar chart on the display screen 01, wherein the number of bars 02 of the diagram is ten, if it is one of the inner sides B, C and for one of outer sides A, D is twelve. The same happens for the page which can be opened simultaneously with the page selected by the user, so that also their group of bars 02 can comprise ten or twelve bars 02.

By only on the display screen 01 depending on the width of the currently processed web only those ink zones 08 ₁ ; 08 ₂ are displayed, which actually belong to a page of interest, it is ensured that the operator only this color zone 08 ₁ ; 08 ₂ can select and manipulate. Erroneous operations due to unintentional manipulation of a not belonging to a page interest color zone 08 ₁ ; 08 ₂ are excluded.

Fig. 6 shows a plan view of a modified embodiment of an inking unit 04, which is particularly suitable for processing webs with a small number of different widths. The embodiment shown is specially designed for the processing of webs with the already mentioned widths 1640, 1600 and 1560 mm. The panoramic color zones 08 _{2 of} the inking unit 04 of FIG. 3 are here replaced by four independently adjustable ink zones 14 ₁ to 14 ₄ of 10 mm width. To accommodate this, the width of adjacent to the ink zones 14 ₁ to 14 ₄ ink zones 08 _{3 is} reduced from 38.8 to 29.8 mm. It is easy to understand that with this dimensioning and with central web guide, the boundaries between sides A and B or C and D of a 1560 mm wide web between the ink zones 14 ₁ and 14 ₂ , with a 1600 mm wide web between the ink zones 14 ₂ and 14 ₃ and at a 1640 mm wide web between the ink zones 14 ₃ and 14 ₄ lie. Consequently, there are no color zones that belong to two sides at the same time, and the above-mentioned problem that an operator for such color zones can select mutually contradictory settings does not occur.

As is also easy to understand, as a modification, the color zones 14 ₁ and 14 _{4 could} each be merged with the adjoining color zones 08 ₃ to a color zone of 39.8 mm width, and it would still be possible to process the mentioned web widths without having two sides of the same color zones.

LIST OF REFERENCE NUMBERS

01

display screen

02

bar

03

cursor

04

inking

05

-

06

paint tray

07

roller

08

Colorimeter, color zone

09

screw

10

-

11

servomotor

12

Zone, non-printing

13

Zone, non-printing

14

Colorimeter, color zone

08 ₁

Colorimeter, color zone

08 ₂

Colorimeter, color zone, panoramic color zone

08 ₃

Colorimeter, color zone

14 ₁

color zone

14 ₂

color zone

14 ₃

color zone

14 ₄

color zone

A

page

B

page

C

page

D

page

Claims (16)

Printing machine with at least one printing unit, a web guide device for superimposing a plurality of printed material webs and a folder for separating the superimposed material webs to individual printed products, and with a control station for controlling the operation of at least the inking unit (04) having a display screen (01) for displaying color settings (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit (04), characterized in that the control station has settings of those ink zones (08; ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit which correspond to pages opened simultaneously in the finished printed product, even if simultaneously and adjacent to the display screen (01) open pages are not directly adjacent to the printed material web. Printing machine with at least one printing unit, a web guide device for superimposing a plurality of printed material webs and a folder for separating the superimposed material webs to individual printed products, and with a control station for controlling the operation of at least the inking unit (04) having a display screen (01) for displaying of settings of the ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit (04), characterized in that the control station is coupled to the web guiding device and to Pages (A; B; C; D) of the finished printed product identified in the finished printed product simultaneously page (A; B; C; D) identified by operating parameters of the web guide device. Printing machine with at least one printing unit, a web guide device for superimposing a plurality of printed material webs and a folder for separating the superimposed material webs to individual printed products, and with a control station for controlling the operation of at least the inking unit (04) having a display screen (01) for displaying color zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit (04), characterized in that the control station for each inking zone (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit (04) determines, on the basis of the width of the printed material web, which side (A; B; C; D) of the finished printed product the color zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) are included, and on each side of the printed product only the settings of those ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ , 14, 14 ₁ , 14 ₂ , 14 ₃ , 14 ₄ ), d actually belong to the page in question. Printing machine according to claim 2 or 3, characterized in that the control station settings of those ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit, in the finished printed product simultaneously open pages, even if displayed simultaneously and adjacent to the display screen (01), when these simultaneously open pages are not directly adjacent to the printed material web. Printing machine according to Claim 1 or 3, characterized in that the control station is coupled to the web guiding device and to pages (A; B; C; D) of the finished printed product a page (A; B; C; D) simultaneously opened in the finished printed product identified by operating parameters of the web guide device. Printing machine according to claim 2 or 5, characterized in that the control station receives said operating parameters from an external source and controls positions of movable parts of the web guiding device on the basis of these operating parameters. Printing machine according to claim 1 or 2, characterized in that a minimum and a maximum width of the printed material web is fixed and that each side of the printed product has a set of ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ , 14 ₃ , 14 ₄ ), which comprises all the ink zones (08, 08 ₁ , 08 ₂ , 08 ₃ , 14, 14 ₁ , 14 ₂ , 14 ₃ , 14 ₄ ), which on the basis of an arbitrary web width between the minimum and maximum width of the page, and that the control station to each page of the printed product, the settings of the complete set of associated color zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ). Printing machine according to claim 2, 5 or 7, characterized in that the control station ignores manipulations of ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) on the display screen are shown without belonging to a page currently being displayed. Printing machine according to one of claims 1 or 2, characterized in that the control station for each inking zone (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) of the inking unit (04) the width of the printed web determines which side (A; B; C; D) of the finished printed product the ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) belong , and on each page of the printed product only the settings of those ink zones (08; 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) that actually belong to the page in question. Printing machine according to claim 1, 2 or 3, characterized in that the control station tampering with a color zone (08 ₂ ) belonging to different sides, each weighted by a factor corresponding to the proportion of a currently displayed side of this ink zone (08 ₂ ) , Printing machine according to claim 1, 2 or 3, characterized in that the printing machine at least two classes of colored zones, having different widths, wherein the color zones (14) of the smallest width in groups of a plurality of color zones (08 (08 14), 08 ₁ ; 08 ₂ ; 08 ₃ ; 14; 14 ₁ ; 14 ₂ ; 14 ₃ ; 14 ₄ ) are juxtaposed. Printing machine according to claim 1 or 4, characterized in that the two sides (A; B; C; D) of an opened printed product are directly adjacent. Printing machine according to claim 1, 2 or 3, characterized in that the printing unit is assigned at least one zonewise adjustable inking unit (04). Printing machine according to Claim 1, 2, 3 or 12, characterized in that one side (A; B; C; D) is predetermined by the two sides (A; B; C; D) and the other side (A; B; C; D) is determined automatically. Printing machine according to claim 14, characterized in that the predetermined page (A; B; C; D) is determined by manual input or by an optical reading device. Printing machine according to Claim 1 or 4, characterized in that the control station is coupled to the web guiding device and on each side (A; B; C; D) of the finished printed product a page (A; B; C; D) opened simultaneously in the finished printed product Identified by operating parameters of the web guide device.

Images