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Method of setting optimized pre-inking prior to the start of printing

A printing start and ink technology, which is applied to the general parts of printing machinery, printing, printing machines, etc., can solve the problems of incompatibility and insufficiency

Inactive Publication Date: 2006-03-22
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that it is not possible to map one print order to another due to the multiple parameters that are based on the print order
That is to say, it is not enough to calculate the adjustment of the ink distribution for the current printing order based on the old data

Method used

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  • Method of setting optimized pre-inking prior to the start of printing
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  • Method of setting optimized pre-inking prior to the start of printing

Examples

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Embodiment Construction

[0017] FIG. 3 shows a sheet-fed printing press 1 with two printing units 3 , 4 each having an inking unit 16 , 17 . In the direction of sheet travel, a feeder 2 is connected in front of the printing units 3, 4, which feeds the sheets from a feeder stack 8 to the first stage of the printing press 1 via a suction table 9. Printing device 3. The sheets are printed in the first printing unit 3 between a blanket cylinder 26 and an impression cylinder 28 by first color separations and are then transported via a transport cylinder 14 to the second printing unit 4 . In the second printing unit 4 , the sheet is then printed in a second color separation between an impression cylinder 10 and a blanket cylinder 13 . At the output of the second printing unit 4 , the printed sheets are transported via a delivery to a delivery stack 7 and can be transported to post-press processing.

[0018] In both printing units 3 , 4 , the printing ink is distributed uniformly over the entire printing w...

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PUM

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Abstract

The present invention relates to a method for optimally adjusting ink distribution in an ink feeding device (16, 17) before the start of printing of an imprinter having at least one printing device (3, 4), wherein an adjustment amount for ink distribution is determined by an electronic control device (5) of the imprinter. The invention is characterized in that in the electronic control device (5) of the imprinter, at least one standard characteristic curve (Std FEl-Profil) for controlling ink distribution before the start of printing is stored into at least one set of parameters of a printing order; on the basis of the stored standard characteristic curve (Std FEl-Profil), a current characteristic curve (Akt FEl-Profil) is worked out according to the task amount of a current printing order; the ink distribution before the start of printing of the current printing order is controlled by using the current characteristic curve (Akt FEl-Profil).

Description

technical field [0001] The invention relates to a method for setting an optimal ink distribution in an inking unit before printing starts in a printing press having at least one printing unit, wherein the adjustment for the ink distribution is ascertained by an electronic control unit of the printing press quantity. Background technique [0002] In offset printing presses, the printing unit is equipped with an inking unit which supplies the printing form cylinder carrying the printing plates with the ink necessary for printing. When the printing press has reached a stable operating state, ie the printing press is in a steady continuous printing, the printing press works with a defined constant adjustment of the corresponding inking unit. However, before the printing press reaches this stable state, ie in the start-up phase before printing starts or after a job change, it must first be adjusted to this stable state in the inking units of the individual printing units. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00B41F31/02
CPCB41P2233/11B41F31/00
Inventor 卡罗琳·加托马丁·迈尔
Owner HEIDELBERGER DRUCKMASCHINEN AG
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