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    Printing roller for a rotary press
    3.
    发明授权
    Printing roller for a rotary press 失效
    旋转印刷机的印刷辊

    公开(公告)号：US4934266A

    公开(公告)日：1990-06-19

    申请号：US301649

    申请日：1989-01-25

    申请人： Giuseppe Fantoni

    发明人： Giuseppe Fantoni

    IPC分类号： B41F27/10

    CPC分类号： B41F27/105

    摘要： A printing roller for a rotary press consists of a tubular, elastic, thin shell which is rigidly and tightly joined to the ends of the roller, the roller having peripheral chambers which contain a non-compressible fluid, and with means for displacing the fluid in order thus to increase the external diameter of the printing roller. The devices for displacing the fluid consist of a threaded spindle which can be screwed into a line which is operatively connected to chambers taking up the fluid. The threaded spindle is operatively connected to a coaxially arranged piston which can transmit a pressure force to the fluid in the chambers. The outer edges of the enveloping shell have two lateral enlargements to create a receptacle or a seat for the printing plate which is to be mounted thereon. The receptacle has a depth which corresponds to the thickness of the printing plate. In an advantageous manner, the outer edges of the edge enlargements are rounded. The enlargements can be produced by machining the shell, for example by removing material or by applying material; in the latter case, in an advantageous manner, by application of a material of the same type, having properties which are similar to those of the printing plate. For taking up printing plates which consist of plates wound up and fitted together at the ends, the shell has at least one longitudinal slot in which the butt joint of the printing plate is located and fixed.

    摘要翻译： 用于旋转压力机的印刷辊由管状的弹性薄壳体组成，该壳体刚性且紧密地接合到辊的端部，该滚筒具有包含不可压缩流体的周边室，并且具有用于将流体置于 从而增加印刷辊的外径。 用于移动流体的装置由螺纹心轴组成，螺纹心轴可以旋入到可操作地连接到吸收流体的腔室的管线中。 螺纹主轴可操作地连接到同轴布置的活塞，其可以向腔室中的流体传递压力。 包封壳的外边缘具有两个横向放大，以形成用于要安装在其上的印版的插座或座。 容器的深度对应于印版的厚度。 以有利的方式，边缘增大的外边缘是圆形的。 可以通过加工外壳来产生放大，例如通过去除材料或通过施加材料; 在后一种情况下，以有利的方式，通过施加具有与印刷版类似的性质的相同类型的材料。 为了卷起由端部卷起并装配在一起的板组成的印版，壳体具有至少一个纵向槽，印版的对接接头位于该纵向槽中并固定。

    Method of mechanically joining the marginal portions of a blank of a printing plate for rotary printing, and printing plate thus produced
    5.
    发明授权
    Method of mechanically joining the marginal portions of a blank of a printing plate for rotary printing, and printing plate thus produced 失效
    机械连接用于旋转印刷的印版的坯料的边缘部分和由此制造的印刷版的方法

    公开(公告)号：US4964338A

    公开(公告)日：1990-10-23

    申请号：US301654

    申请日：1989-01-25

    申请人： Giuseppe Fantoni ,  Daniele Temporin

    发明人： Giuseppe Fantoni ,  Daniele Temporin

    IPC分类号： B41F27/12

    CPC分类号： B41F27/1293 ,  B41F27/1281 ,  Y10T29/49936

    摘要： The marginal portions of a printing plate for rotary printing are joined together to form a cylindrical printing plate, which can be mounted on a printing roller, for example, on a printing roller of extensible diameter. The joint is made by stripping the photosensitive coating of the printing plate at the two marginal portions forming a pocket in one marginal portion and inserting the other marginal portion, bent by about 90.degree., into the pocket. The joint can be made along a circumferential line of the cylinder or along a line which is inclined relative to the circumferential lines of the cylinder.The plate can be mounted with the bent-off and radially inwards-projecting marginal portions, or these marginal portions can be arranged at an inclination to the cylinder radius. The inlet between the two adjacent panels of the pocket is filled with a hardenable material. Thus, a joint is created which forms a continuous, smooth surface for the printing plate in the circumferential direction. The filling material can be removed after the printing plate has been used, so that storage of the printing plate as a flat plate becomes possible. Alternatively, the joint between the plate ends can also be made durable by introducing an adhesive between the marginal portions, in other thus to form a durable joint also in the axial direction.

    摘要翻译： 用于旋转印刷的印版的边缘部分接合在一起以形成圆柱形印版，其可以安装在例如印刷辊上的印刷辊上，该印刷辊在可延展的印刷辊上。 通过在两个边缘部分剥离印版的感光涂层，形成一个边缘部分的口袋并将弯曲大约90°的另一个边缘部分插入口袋中来制成接头。 接头可以沿着圆柱体的圆周线或沿着相对于圆柱体的圆周线倾斜的线制成。 板可以安装有弯曲和径向向内突出的边缘部分，或者这些边缘部分可以以与圆柱半径相对的倾斜度布置。 口袋两个相邻面板之间的入口填充有可硬化的材料。 因此，产生了在圆周方向上为印版形成连续，平滑的表面的接头。 在使用印版之后，可以除去填充材料，从而可以将印版作为平板进行存储。 或者，也可以通过在边缘部分之间引入粘合剂来使板端之间的接合变得耐用，从而在轴向方向上形成耐久的接头。