Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for controlling a position of numbering wheels of a numbering device that has independently-driven type numbering wheels.SOLUTION: A numbering device 1 is of the type comprising a plurality of independently-driven numbering wheels 7 disposed adjacent to one another for rotation about a common rotation axis, includes steps actuating the numbering wheels 7 between successive numbering iterations, whereby each numbering wheel which has to be rotated to a new target position is driven into rotation until it reaches its new target position. The device further electronically regulates, at least during actuation of the numbering wheels 7, the position of each numbering wheel which is not rotated or which has reached its new target position.
Abstract:
PROBLEM TO BE SOLVED: To provide an intaglio printing system for producing bank bills and valuable paper.SOLUTION: A first and a second intaglio printer 1a and 1b for printing on a front surface and a rear surface of a sheet are coupled so as to operate with each other by a sheet processing/transporting system 9. The sheet processing/transporting system 9 comprises an unmanned transporting car system for automatically transporting the sheet from a sheet discharging station 8.1 of the first intaglio printer 1a where front surface printing is performed to a sheet supplying station 1.2 of the second intaglio printer 1b where rear surface printing is performed.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for detection of occurrence of printing errors on printed substrates during the process thereof on a printing press, an expert system and the printing press including the expert system.SOLUTION: The functional component of the printing press is provided with a plurality of sensors to monitor the behavior of the printing press during processing the printed substrate. To decide the occurrence of the characteristic behavior of the printing press which leads or is likely to lead to the occurrence of the printing error on the printed substrate, or of the characteristic behavior of the printing press which leads or is likely to lead to the excellent printing quality of the printed substrate, the method including the process for performing the in-line analysis of the behavior of the printing press is described. The performing of the fuzzy-pattern classification of the behavior of the printing press is preferably to be included by the in-line analysis of the behavior of the printing press. According to one embodiment of the proposed method, the in-line analysis of the behavior of the printing press is coupled with an in-line optical inspection of the printed substrate.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved numbering device (1) for carrying out numbering in sheet-fed or web-fed numbering presses.SOLUTION: A numbering device (1) includes casings (2, 3) and a numbering unit (6) with rotatable numbering wheels (7) carrying alpha-numerical symbols thereon. Numbering wheels (7) are disposed next to each other and rotate about a common rotation axis. The numbering unit (6) includes electro-mechanical actuation means for setting the position of the numbering wheels (7). The electro-mechanical actuation means are entirely located in the casing and are mechanically autonomous. A plurality of independent driving means (15, 18-23; 23*) for actuating a corresponding plurality of numbering wheels (7) are provided. The driving means are arranged in a distributed manner at equal intervals in an arc shape around the rotational axis of the numbering wheels.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for improving physical resistance of security paper and strengthening resistance of security paper to counterfeit.SOLUTION: There is described a process for producing security papers comprising a step of sealing a surface of the security papers by applying a protective pattern on the surface of the security paper. The step contains a step of printing the security papers by intaglio printing using an intaglio printing plate with engraved areas such that at least 80% of the whole surface of each security paper is covered with a combination of embossed intaglio patterns produced by engraved areas of the intaglio printing plate which are inked or flat intaglio patterns produced by unengraved areas of the intaglio printing plate which are inked after wiping of the intaglio printing plate. At least a part of the embossed intaglio patterns and flat intaglio patterns is printed with a transparent or semi-transparent intaglio ink.
Abstract:
PROBLEM TO BE SOLVED: To provide a printing machine which increases the security of printing by modifying the existing printing apparatus and to provide a special printing system, particularly for securities.SOLUTION: The printing machine includes: at least one transfer system (5) for conveying an object (1) to be printed on an impression cylinder (6); at least one screen (7, 8) of a cylindrical or flat shape, being provided with a doctor blade and being configured to collaborate with the impression cylinder (6) and print the object to be printed by using an ink containing pigments that can be oriented by a magnetic field; and an unloading system (9) for carrying the object (1) to be printed. The impression cylinder is provided with at least one magnetic element on its printing surface and the magnetic element is positioned on a place corresponding to a printing image to be performed on the object to be printed by the screen (7, 8).
Abstract:
PROBLEM TO BE SOLVED: To provide a sheet processing machine suitable to a plurality of expected proper use environments, and to provide modules therefor.SOLUTION: The sheet processing machine includes a plurality of modules through which the sheets to be processed pass one after another. The modules each have a sheet input interface and/or a sheet output interface. In at least one of the modules, the sheet input interface and/or the sheet output interface can optionally be coupled to sheet output interfaces and sheet input interfaces, respectively, of at least two other modules.
Abstract:
PROBLEM TO BE SOLVED: To improve a well known machine and process in an ink supply system for an intaglio printing machine for printing a bill, valuable security such as a check, a passport, an ID and other similar articles.SOLUTION: A system for an intaglio printing machine includes at least a duct 1 for supply ink to a surface of an engraved selective ink supply cylinder 5. The selective ink supply cylinder, then, inks a surface of a plate cylinder 16 of the intaglio printing machine via a chevron roller 17. The chevron roller 17 includes a relief 18 corresponding to an engraving 27 to be inked on the plate cylinder 16. An ink supply system further includes a wiping system 8 for wiping the surface of the selective ink supply cylinder and recovering the wiped ink in the duct 1.
Abstract:
PROBLEM TO BE SOLVED: To improve the security of human intervening for maintenance purposes.SOLUTION: A sheet supply or web supply printing machine includes: a main unit (1); at least one mobile carriage (2) adapted to be coupled to the main unit for cooperation therewith during printing operations and to be moved away from the main unit during maintenance operations; a control unit for controlling displacement of the mobile carriage toward and away from the main unit (1); and an access zone (9, 9') surrounding at least partly the mobile carriage for allowing an operator to get access to the main unit and the mobile carriage; wherein the access zone lies outside the displacement path (10) of the mobile carriage. The printing machine further includes a detection means (11) for monitoring the access zone and detecting the presence of the operator within the access zone. The displacement of the mobile carriage is interrupted or prevented in the case that the presence of the operator within the access zone is detected by the detection means and before the operator intrudes in the displacement path of the mobile carriage.