Printing press and method for operating the same

A technology for printing machine and running interruption, which is applied in the direction of printing machine, printing, general parts of printing machinery, etc., to achieve the effect of easy cleaning and simplified operability

Inactive Publication Date: 2006-11-01
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this ink transfer device is that when the anilox roller rotates in the opposite direction of rotation to the printing run, the ink adhering to the anilox roller in the form of lumps is conveyed from the ink fountain and fed into the anilox roller as excess ink In the part of the inking unit (Anilox-Farbwerk) following the anilox roller
Contrary to chamber doctor blades, this is unavoidable in ink transfer units which only comprise a single metering doctor blade and are thus open upwards

Method used

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  • Printing press and method for operating the same
  • Printing press and method for operating the same
  • Printing press and method for operating the same

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Embodiment Construction

[0022] The first embodiment shown in FIGS. 1a and 1b and the second embodiment shown in FIGS. 2a and 2b respectively relate to a printing press 1 for offset offset printing. Each printing press 1 includes a printing plate cylinder 30 and an anilox inking device 2, the anilox inking device 2 includes an anilox roller 9 and an inking roller 10, the anilox roller 9 has a geometric The anilox roller has a rotation axis 19, and the ink form roller 10 has a geometrical ink form roller rotation axis 20. The inking roller 10 is in rolling contact with the anilox roller 9 and also in rolling contact with the plate cylinder 30 during printing operation.

[0023] On the anilox roller 9 rests an ink transfer device which is different from the chamber doctor blade. The ink transfer device includes an ink fountain 3 with a metering blade 4. The metering doctor blade 4 is the only doctor blade of the ink transfer device and rests on the anilox roller 9 in the opposite direction to the rotation d...

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PUM

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Abstract

A method for operating a printing press having a printing form cylinder and a screen roller, includes rotating the printing form cylinder in a first direction of rotation and rotating the screen roller at the same time, during a continuous printing operation. The printing form cylinder is rotated in a second direction of rotation and the screen roller is kept at a rotational standstill at the same time, during an interruption in the printing operation. A printing press for carrying out the method has a clutch, preferably a freewheeling clutch, integrated into an anilox inking unit having the screen roller, in such a way that the clutch stops the rotation of the screen roller during reverse running of the printing press.

Description

Technical field [0001] The invention relates to a printing press with anilox rollers and a method of operating such a printing press. Background technique [0002] DE 101 44 563 A1 (corresponding to US 6,745,689B2) describes a printing machine with an anilox roller, a chamber type doctor blade is attached to the anilox roller, the chamber type doctor blade includes a reverse metering doctor blade and a forward Measuring scrapers, they seal up and down the chamber of the chamber scraper. The advantage of the chamber doctor blade is that it enables the anilox roller to rotate in the direction opposite to the printing operation without the risk of excess ink being sent out of the chamber. The disadvantage of this chamber scraper is its poor cleanability and a large number of wear parts. The wear parts of the chamber scraper are the positive metering scraper and the reverse metering scraper. [0003] DE 102 03 695 A1 (corresponding to US 6,705,223 B2) also describes a printing press ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F31/13B41F31/04
CPCB41F31/027B41F31/13
Inventor 延斯·希罗尼穆斯于尔根·米歇尔斯迪特尔·沙夫拉特沃尔夫冈·舍恩贝格尔伯恩哈德·施瓦布米夏埃多·蒂勒曼
Owner HEIDELBERGER DRUCKMASCHINEN AG
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