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    Process for preparing removable metal sleeves for printing machines
    31.
    发明授权
    Process for preparing removable metal sleeves for printing machines 失效
    制备印刷机用可拆卸金属套筒的方法

    公开(公告)号：US06401614B1

    公开(公告)日：2002-06-11

    申请号：US09637258

    申请日：2000-08-11

    Applicant: Laura Teresa Venturati

    Inventor： Laura Teresa Venturati

    IPC: B41C118

    CPC classification number: B41C1/182 ,  B41N1/20

    Abstract: It is disclosed a process for preparing a removable sleeve to be photoengraved, for use in printing presses, which sleeve is obtained by immersion of a cylinder in a copper-electroplating tank to generate the sleeve itself, and separation of the cylinder is obtained either by an extraction tooling or with use of a metal ring for closure of the holes for air admission, which are designed to create an air cushion enabling easy removal.

    Abstract translation: 公开了一种用于制备用于印刷机的可剥离套筒的方法，所述可移除套筒用于印刷机，该套筒通过将圆筒浸入铜电镀槽中而获得，以产生套筒本身，并且通过 提取工具或使用金属环封闭用于进气的孔，其被设计成产生能够容易地移除的气垫。

    Methods and apparatuses for engraving gravure cylinders
    32.
    发明授权
    Methods and apparatuses for engraving gravure cylinders 有权
    雕刻凹版滚筒的方法和装置

    公开(公告)号：US6048446A

    公开(公告)日：2000-04-11

    申请号：US175387

    申请日：1998-10-20

    Applicant: A. John Michaelis

    Inventor： A. John Michaelis

    IPC: B41C1/00 ,  B41C3/08 ,  B05D1/32 ,  B05D5/00 ,  C25D5/48 ,  C25D7/00

    CPC classification number: B41N1/20 ,  B41C1/00 ,  B41C1/02 ,  B41C1/188 ,  Y10S205/921

    Abstract: The present invention provides several methods for engraving gravure cylinders much more rapidly and at a higher resolution while, at the same time, reducing the engraving cost. The present invention employs a resist that is deposited onto the surface of a gravure cylinder. The resist is capable of being physically and/or chemically changed in response to being exposed to a form of actinic energy, such as a laser beam. The exposed areas of resist allow a material, such as chromium, to be plated onto the surface of the gravure cylinder to form walls that define cells therebetween. In use, the cells contain ink for printing the desired patterns of text and/or images.

    Abstract translation: 本发明提供了几种更加快速地以更高分辨率雕刻凹版滚筒的方法，同时降低雕刻成本。 本发明采用沉积在凹版滚筒表面上的抗蚀剂。 抗蚀剂能够响应于暴露于诸如激光束的光化能的形式而被物理和/或化学地改变。 抗蚀剂的暴露区域允许将诸如铬的材料电镀到凹版滚筒的表面上以形成在其间限定孔的壁。 在使用中，单元格包含用于打印期望的文本和/或图像图案的墨水。

    Method and apparatus for mounting a printing sleeve onto a printing roll
    33.
    发明授权
    Method and apparatus for mounting a printing sleeve onto a printing roll 失效
    用于将印刷套筒安装到印刷辊上的方法和装置

    公开(公告)号：US5784961A

    公开(公告)日：1998-07-28

    申请号：US788186

    申请日：1997-01-24

    Applicant: Heinz-W. Lorig ,  Karl Sauressig

    Inventor： Heinz-W. Lorig ,  Karl Sauressig

    IPC: B41F5/24 ,  B41C1/18 ,  B41F13/10 ,  B41F13/11 ,  B41N1/20 ,  B41N1/22 ,  B41F27/00 ,  B41F13/20

    CPC classification number: B41N1/22 ,  B41C1/182 ,  B41N1/20 ,  Y10T29/49558

    Abstract: A printing sleeve for a rotogravure or flexo printing roll is provided thatas a slightly conical or tapered geometry wherein the inner diameter at one end is slightly smaller than the inner diameter at a second end. Similarly, the printing roll is provided with a slightly conical geometry or tapered diameter as well wherein the outside diameter at one end is slightly smaller than the outside diameter at the other end. The larger end of the printing sleeve is mounted over the smaller end of the printing roll and the sleeve is pushed forward either manually or mechanically until the larger end of the printing sleeve is disposed over the larger end of the printing roll. A key/slot combination may be provided on the inside surface of the printing sleeve and outside surface of the printing roll to ensure proper alignment. An apparatus also is provided for mounting a printing sleeve over a printing roll which includes two support bearings for mounting the opposing ends of the printing roll or printing axle. A clamp is provided to positively clamp the larger end of the printing roll against its respective support bearing. A support arm is further provided to balance the printing roll thereby enabling the lowering or release of the support bearing supporting the opposing end of the printing roll. After the sleeve has been partially inserted over the printing roll, the support bearing is then raised and the support arm is released. Then, a push adaptor is provided for forcing the printing sleeve in place over the printing roll with a predetermined amount of force.

    Abstract translation: 提供了一种用于凹版印刷或柔版印刷辊的印刷套筒，其具有稍微锥形或锥形的几何形状，其中一端的内径略小于第二端的内径。 类似地，印刷辊具有稍微锥形的几何形状或锥形直径，其中一端的外径略小于另一端的外径。 印刷套筒的较大端部安装在印刷辊的较小端部上，并且套筒被手动或机械地向前推动，直到印刷套筒的较大端部布置在印刷辊的较大端部上方。 可以在印刷套筒的内表面和印刷辊的外表面上提供键/槽组合，以确保正确对准。 还提供了一种用于将印刷套筒安装在印刷辊上的装置，该印刷辊包括用于安装印刷辊或印刷轴的相对端的两个支撑轴承。 提供夹具以将印刷辊的较大端部朝向其相应的支撑轴承正向夹紧。 还提供支撑臂以平衡印刷辊，从而能够降低或释放支撑印刷辊的相对端的支撑轴承。 在套筒已经部分地插入印刷辊之后，支撑轴承然后升高并且支撑臂被释放。 然后，提供推动适配器用于以预定量的力将印刷套筒推压在印刷辊上的适当位置。

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