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Control of a printing press using a torsion model

A printing machine and model technology, applied in the direction of rotary printing machine, general parts of printing machinery, printing machine, etc.

Inactive Publication Date: 2007-08-29
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach has the great disadvantage of not reacting to changes in the printing press after delivery to the user, since the truth table stored in the printing press does not take this into account

Method used

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  • Control of a printing press using a torsion model
  • Control of a printing press using a torsion model
  • Control of a printing press using a torsion model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] FIG. 1 shows a printing press 1 which processes sheet-like printing materials 22 in offset web printing. The printing press 1 has five printing units 6 and one coating unit 7 . The first four printing units 6 are used here to apply inks of the four primary colors yellow, red, blue and black in front printing, while the fifth printing unit 6 is filled with spot color inks such as silver, gold or similar. However, the inks used in the printing unit 6 are completely irrelevant for the functioning of the invention. Following the fifth printing unit 6 , the printed sheet 22 is provided with a coating in the coating unit 7 . The printed sheets 22 produced in the glazing unit 7 are gripped by means of the gripper bridges in the delivery conveyor chain 8 and deposited on the delivery pile 4 in the delivery unit 3 . If the delivery pile 4 has reached its maximum height, it is removed and reprocessed. On the side of the printing press 1 opposite the delivery is a feeder 2 whic...

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PUM

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Abstract

A method and an apparatus control a printing press having a plurality of printing units, a plurality of cylinders which are coupled mechanically to one another and a control computer for controlling at least one drive motor which drives the mechanically coupled cylinders. A torsion model is stored in the machine computer for describing the torsion state of the cylinders in the printing press which are rotatably coupled mechanically to one another, as a function of at least one measurable operating parameter or at least one variable of the printing press which is known to the machine computer. A control of the printing press is performed by the control computer on the basis of the values which are calculated by the torsion model.

Description

technical field [0001] The invention relates to a device and a method for controlling a printing press having a plurality of printing units, a plurality of cylinders mechanically coupled to one another and a control computer for controlling at least one drive motor which drives these mechanically coupled roller. Background technique [0002] A sheet-fed rotary printing press in offset printing has several printing units, which each apply a printing image in a color separation of a defined color to a printing material. Usually, there are at least four printing units so that the three primary colors red, yellow, blue and black can be printed. However, other printing units can also be provided for spot colors such as gold or silver. In addition, a special coating unit connected after the printing unit can be used to apply the coating to the substrate. In addition, sheet-fed rotary printing presses can process the front and back of the substrate, so in this case, double the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00B41F33/14B41F33/08B41F13/004
CPCB41F33/0009
Inventor 斯特凡·施赖贝尔伯恩哈德·布克维尔纳·乔斯马尔特·塞德勒
Owner HEIDELBERGER DRUCKMASCHINEN AG
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