Rotogravure with snubber roll

A technology of gravure printing and printing mechanism, which is applied to gravure rotary printing machines, printing machines, rotary printing machines, etc. It can solve the problems of lost settings, web tension changes, etc., and achieve good registration accuracy and fast adjustment effects
CN109130455AInactive Publication Date: 2019-01-04HEIDELBERGER DRUCKMASCHINEN AG
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HEIDELBERGER DRUCKMASCHINEN AG
Publication Date
2019-01-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A rotogravure unit 10 of a printing machine for printing on a web-shaped printing material 100 includes a forme cylinder 3, an ink application device 6, an impression cylinder 2 and guide rollers 5 for guiding the printing material 100. A driven pull roller 8 and a further roller 2, 12 form a roller pair for transporting the printing material 100. The rotogravure unit advantageously permits only afew waste products to be created when the machine is started up or restarted and in-register printing is made quickly possible.
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Description

technical field

[0001] The invention relates to a rotogravure printing unit having the features stated in the preamble of claim 1 . Background technique

[0002] A configuration of a rotogravure printing unit is given, for example, in document EP 2 604 431 B1. The circumferential surface of the gravure printing cylinder (hereinafter also referred to simply as printing cylinder, gravure printing cylinder or printing cylinder) is at least partially sunk in an ink pan filled with gravure printing ink, which is arranged in the Below the gravure plate cylinder. During rotation of the intaglio printing cylinder about its axis of symmetry, those depressions in the peripheral surface which pass through the disc grooves are filled with intaglio printing ink.

[0003] Excess ink is wiped off by at least one doctor blade pressed against said peripheral surface. In the printing nip located in the upper corner section of the gravure printing cylinder, the gravure printing ink is trans...

Claims

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