Ink control based on model

A technology of ink and ink delivery, which is applied to the general parts of printing machinery, printing, printing machines, etc., and can solve the problems of slow adjustment characteristics, consumption, and slow adjustment of ink delivery devices

Active Publication Date: 2007-07-18
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The disadvantage of this procedure is that corresponding costs must be incurred during the adjustment process, so that adjustment deviations can be compensated as quickly as possible in order to generate as little waste as possible when adjusting the color differences
Furthermore, the inking unit in an offset printing press can only be adjusted very slowly because of the very slow adjustment behavior of the inking unit

Method used

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  • Ink control based on model
  • Ink control based on model
  • Ink control based on model

Examples

Experimental program
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Embodiment Construction

[0018] specific implementation plan

[0019] FIG. 1 shows a printing press 1 with two printing units 3 , 4 as well as a feeder 2 and a delivery 6 . In the feeder 2 , the printing material 9 in the form of a sheet is removed from the feeder stack 8 and fed via a suction belt to the first printing unit 3 of the printing press 1 . There, the sheet 9 is printed in the printing nip between the impression cylinder 28 and the blanket cylinder 26 and transferred by means of the transfer cylinder 14 to the second printing unit 4 following it. There, the sheet 9 is printed with a second ink print in a second printing nip between the impression cylinder 10 and the blanket cylinder 13 and passed to the delivery 6 . In the delivery 6 , the printed sheets 9 are deposited on a delivery stack 7 . Both printing units 3 , 4 each have an inking unit 16 , 17 which supplies printing ink to the plate cylinders 11 , 12 . Both printing units 3 , 4 additionally each have a dampening unit 18 , 19 fo...

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PUM

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Abstract

A method is provided for controlling an ink feed of an offset printing press having a control computer and at least one inking unit controlled by the control computer. The control computer calculates an ink layer thickness necessary for the color through the use of spectral reflectance values and, in order to set the calculated ink layer thickness, performs necessary setting operations on the inking unit. A printing press having an apparatus for carrying out the method is also provided.

Description

technical field [0001] The invention relates to a method and a device for controlling an ink supply process of an offset printing press having a control computer and at least one inking unit controlled by the control computer. Background technique [0002] The inking unit of the offset printing press is used to transfer the ink layer required to form the printing pattern to the plate cylinder, blanket cylinder and finally to the substrate. In this case, an ink fountain is used in the inking unit, which allows the inking to be adjusted according to the desired result with metering elements in the different ink zones. In this case it is particularly important that the inking on the printing material and the resulting printed image correspond to the original. For this purpose, the printing press has a series of regulation processes in which the actual ink values ​​of the printed pattern formed are compared with the specified values ​​of the original, and the ink supply is then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/10B41F33/14B41F33/16
CPCB41F33/0045
Inventor 马丁·迈尔
Owner HEIDELBERGER DRUCKMASCHINEN AG
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