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52. 发明授权

US4205605A Device for determination of operating angle of distributor rollers 失效
标题翻译：用于确定分配辊运行角度的装置
公开(公告)号：US4205605A
公开(公告)日：1980-06-03
申请号：US885982
申请日：1978-03-13
申请人： Harry M. Greiner , Peter Schramm
发明人： Harry M. Greiner , Peter Schramm
IPC分类号： B41F31/15 , B41F31/14 , B41L27/16
CPC分类号： B41F31/15 , Y10S101/38
摘要： A control system for optimizing the starting angle of a vibrating roller for production of an evenly distributed film of ink on the printing plate of a printing press, particularly an offset press, in which a reciprocating drive connection is provided between the press drive and the vibrating roller for reciprocation of the latter. A chart is provided for each one of a complete set of reference distribution starting angles for the vibrating roller, each chart showing for each starting angle a corresponding ink density distribution curve which, when matched to the observed ink density distribution in a printed product, provides direct reading of optimum starting angle. A variable phase changer is interposed in the drive connection leading to the vibrating roller for directly setting the starting angle to optimum value. In a preferred embodiment of the invention the charts are arranged angularly spaced on a rotatable carrier disc which is coupled to a first servo device, while the phase changer is coupled to a second servo device, the servo devices being coupled together by servo circuitry for angular coincidence at an angle which is manually set. When the disc is in reference position (for example, zero), the optimum starting angle is read off the chart, following which the disc and phase changer are set, simultaneously, to the optimum angle.
摘要翻译：一种控制系统，用于在印刷机，特别是胶版印刷机的印版上优化用于生产均匀分布的油墨膜的振动辊的起始角度，其中在压力传动和振动之间设置有往复驱动连接辊子用于往复运动。为振动辊的一组完整的参考分配开始角度中的每一个提供了图表，每个图表显示了每个起始角度对应的油墨密度分布曲线，当与印刷产品中的观察到的油墨密度分布相匹配时，其提供直接读取最佳起始角度。可变相变器插入到通向振动辊的驱动连接件中，以将起始角度直接设定为最佳值。在本发明的一个优选实施例中，图表在与可转动的载体盘上成角度地间隔布置，该转盘与第一伺服装置相耦合，而相变器耦合到第二伺服装置，伺服装置由伺服电路以手动设定的角度重合。当光盘处于参考位置（例如零）时，从图表中读出最佳起始角度，随后将光盘和相位变换器同时设置为最佳角度。

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