Analysis of vibration of printing unit of offset printing press

Analysis of vibration of printing unit of offset printing press
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Juliusz Krzyżkowski, Yuriy Pyryev
j[dot]krzyzkowski[at]wip[dot]pw[dot]edu[dot]pl; y[dot]pyryev[at]wip[dot]pw[dot]edu[dot]pl
13 August 2013
16 x


Abstract: There are several causes of vibration of off set printing presses. Major are cyclic work of feeders and deliveries, gaps with mechanisms for fi xing plate and blanket in cylinders of printing pair and inappropriate stress between those cylinders. All mentioned above causes increased exploitation of bearings, gears driving cylinders and other parts of the printing press. The consequences of vibration are also breaking of paper web and such artefacts as doubling and streaking on the prints. In this paper printing pair cylinders of lithographic printing press are described as a two-degree of freedom model. Solution of a system of diff erential equations, which describes this model shows infl uence of vibration of printing unit cylinders on the fl uctuation of the ink fi lm thickness on the prints (magnitude of streaking phenomenon).

Keywords: lithographic printing, off set printing, off set presses, printing unit, plate cylinder, blanket cylinder

Area: Mechanics, Automation and Robotics


  author = {Juliusz Krzyżkowski and Yuriy Pyryev},
  title = {Analysis of vibration of printing unit of offset printing press},
  journal = {Challenges of Modern Technology},
  year = {2011},
  volume = {2},
  number = {2},
  pages = {31--34},
  url = {http://www.journal.young-scientists.eu/index.php/isuues/file/28-analysis-of-vibration-of-printing-unit-of-offset-printing-press}

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