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Method for vibration compensation in a printing press and the printing press

A printing machine and printing device technology, which is applied to the general parts of printing machinery, printing machines, rotary printing machines, etc., can solve the problems of small activity space and reduced interference, and achieve vibration suppression, total vibration amplitude reduction, and small amplitude Effect

Active Publication Date: 2010-12-29
海德堡印刷机械知识产权股份两合公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been established that mechanisms are generally given too little room to maneuver to reduce disturbances below acceptable thresholds

Method used

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  • Method for vibration compensation in a printing press and the printing press
  • Method for vibration compensation in a printing press and the printing press
  • Method for vibration compensation in a printing press and the printing press

Examples

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Embodiment Construction

[0029] FIG. 1 shows a schematic qualitative view of an exemplary typical vibration spectrum of a sheet-fed printing press with several printing units. with respect to the machine frequency ω M The value of the amplitude A in appropriate units (a.u) is plotted as a function of the relative frequency f of . The spectrum has a plurality of discrete frequency lines of different amplitudes. There are frequency components that are the machine frequency ω M Integer multiples (including 1). In addition there are frequency components which are not the machine frequency ω M Integer multiples of . The amplitudes of non-integer frequency components are significantly smaller than the amplitudes of integer frequency components. The sum of the frequency components of the frequency spectrum tends to be vibration-resistant with increasing frequency, that is to say the vibrations can be described with sufficient accuracy by means of low frequency components. In the example specifically sh...

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Abstract

In a method for compensating an oscillation which has a frequency spectrum with a number of discrete frequency components in a printing press, at least one counter torque is introduced into the printing press in order to compensate for at least one discrete frequency component of the oscillation. A first group of one or more frequency components are compensated for by introducing one or more previously determined counter torques, and a second group of one or more frequency components is compensated for by introducing specific counter torques as a function of a measurement, carried out during the operation of the printing press, of at least one signal which contains at least the one or the plurality of frequency components.

Description

technical field [0001] The invention relates to a method for compensating vibrations in a printing press, the vibrations having a frequency spectrum comprising a plurality of discrete frequency components, wherein at least one counter moment for compensating the at least one discrete frequency component of the vibration introduced into the printer. Background technique [0002] Interfering vibrations can occur on the printing press, which have a negative effect on the printing quality. It is precisely for sheet-fed printing presses with long printing unit groups, ie a plurality of printing units arranged in series, typically eight, ten or twelve printing units, that a particularly high degree of precision is required in order to avoid, for example, Position error (transfer error, registration error) that occurs when a sheet is transferred from the element guiding the first sheet to the element guiding the second sheet. Relatively small vibration amplitudes have unacceptabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00B41F13/004F16F15/18F16F15/02
CPCB41P2213/42B41F13/0008B41F13/085
Inventor 伯恩哈德·布克埃里克·克诺普夫马蒂亚斯·内尔斯特凡·施赖伯马尔特·塞德勒德特勒夫·施特龙克
Owner 海德堡印刷机械知识产权股份两合公司