Printing machine with modular additional printing group
A technology for additional printing and printing presses, applied in printing presses, rotary printing presses, printing and other directions, it can solve the problems of complicated installation of impression cylinders, and achieve the effect of easy and fast replacement and cost reduction.
Inactive Publication Date: 2008-10-15
KBA NOTASYS SA
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Problems solved by technology
According to US4462311, the position of the impression cylinder in the frame has to be changed for different intermediate modules, although the intermediate modules cooperate basically with the same structure of the inking module
This means that the installation of the impression cylinder in the frame is more complicated, thus enabling the position of the impression cylinder to be changed
Method used
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[0031] The paper offset printing machine according to the invention for printing security documents, in particular banknotes, will be described below. As follows, the embodiments shown in the figures are based on a common machine structure with the same main printing group for simultaneous front-back offset printing of sheets. The master printing group is similar to that described in European patent application EP0949069, which is incorporated herein by reference. It should be appreciated, however, that the master printing group may be used to print according to other printing methods, such as gravure printing. Similarly, printing presses work well for printing on webs, rather than individual sheets.
[0032] The printing press comprises an additional printing group independent of the main printing group, arranged upstream of the main printing group with respect to the direction of movement of the paper, which performs additional printing of the security document before being...
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The present invention describes a web-fed or sheet-fed printing machine for security papers, in particular banknotes, comprising a machine frame (100) in which is located a main printing group (10, 13, 15, 20, 23, 25), the printing machine further comprising an additional printing group (1, 2, 8; 1, 2', 8; 1 ,2'', 8), independent of the main printing group, placed upstream of the main printing group with respect to a direction of displacement of the web or sheets for performing additional printing of the security papers prior to printing by said main printing group. The additional printing group comprises an inking module (1) containing at least one inking device (3), and a printing module (2; 2'; 2'') comprising a cylinder arrangement including a plurality of cylinders (4, 5; 4', 5', 6',7'; 4'', 5'', 6'', 7''), the printing module being interposed between the inking module and the machine frame of the printing machine. The additional printing group is constructed in such a manner that the printing module can be decoupled from the inking module and the machine frame for replacement by another printing module without this requiring removal of said inking module (1) from the printing machine.
Description
technical field [0001] The present invention relates to a web-fed or sheet-fed printing press for security documents, in particular banknotes, comprising in particular a main printing group and an additional printing group which is relative to the web or paper The direction of movement is arranged upstream of the main printing group for additional printing of the security document before being printed by the main printing group. Background technique [0002] Printers are known in the art. For example, European patent application EP0132858 describes an offset printing press having a main printing group which enables a sheet to be printed simultaneously on both sides by offset printing, each side of the sheet receiving a complete design with juxtaposed colours. In particular, the machine is set up to be able to print both sides of the paper according to ordinary offset printing techniques or according to other offset printing techniques (commonly known as "Orlof offset printi...
Claims
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IPC IPC(8): B41F11/02
CPCB41F11/02B41P2217/11
Inventor G·霍伊尔V·施维茨基J·谢德
Owner KBA NOTASYS SA