Abstract:
There is described a recto-verso printing press (100*) adapted to carry out simultaneous recto-verso printing of sheets, the printing press (100*) comprising a main printing group (5, 6, 15, 16, 25, 26) with first and second printing cylinders (5, 6) cooperating with one another to form a first printing nip between the first and second printing cylinders (5, 6) where first and second sides of sheets are simultaneously printed, the first printing cylinder (5) acting as a sheet conveying cylinder of the main printing group (5, 6, 15, 16, 25, 26). The printing press (100*) further comprises an additional printing group (7, 8, 17, 18, 27, 28) with third and fourth printing cylinders (7, 8) cooperating with one another to form a second printing nip between the third and fourth printing cylinders (7, 8) where the first and second sides of the sheets are simultaneously printed, the third printing cylinder (7) acting as a sheet conveying cylinder of the additional printing group (7, 8, 17, 18, 27, 28). The main printing group (5, 6, 15, 16, 25, 26) and the additional printing group (7, 8, 17, 18, 27, 28) are coupled to one another by means of an intermediate sheet conveying system comprising one or more sheet-transfer cylinders (10, 10', 10") interposed between the first and third printing cylinders (5, 7).
Abstract:
There is described an ink wiping system (100; 100'; 100") of an intaglio printing press comprising a wiping tank (101) and a rotatable wiping roller assembly (102; 102*) supported on and partly located in the wiping tank (101) for wiping excess ink from the surface of a rotatable intaglio printing cylinder (80) of the intaglio printing press. The ink wiping system (100; 100'; 100") comprises a wiping roller retracting device (150) adapted to be coupled to the wiping roller assembly (102; 102*) to move the wiping roller assembly (102; 102*) between a working position (W) where the wiping roller assembly (102; 102*) is supported on and partly located in the wiping tank (101) for cooperation with the intaglio printing cylinder (80) and a parking position (P) where the wiping roller assembly (102; 102*) is retracted out of the wiping tank (101) and away from the intaglio printing cylinder (80). The ink wiping system (100; 100'; 100") further includes, at the parking position (P), a storage section (110) adapted to receive the wiping roller assembly (102; 102*) which is retracted by the wiping roller retracting device (150).
Abstract:
There is described a sheet-fed or web-fed printing press for numbering and varnishing of security documents, especially banknotes, including : - a numbering group (02) comprising at least one numbering unit (21, 22) for numbering printed material in the form of individual sheets or successive portions of a continuous web carrying multiple security imprints ; and - a varnishing group (03) located downstream of the numbering group (02) for applying varnish onto recto and verso sides of the printed material, the varnishing group (03) comprising at least a first varnishing unit (31) disposed above a path of the printed material to apply varnish on the recto side of the printed material and at least a second varnishing unit (32) disposed below the path of the printed material to apply varnish on the verso side of the printed material.
Abstract:
There is described an inspection system (50) for in-line inspection of sheet-like or web-like material on an intaglio printing press, wherein the inspection system comprises an optical quality control apparatus for carrying out inspection of a printed area on a printed side of the sheet-like or web-like material, the optical quality control apparatus including a camera system (55) with at least one line-scan camera (56) for scanning and acquiring an image of the printed area while the sheet-like or web-like material is being transported in the intaglio printing press past the camera system (55). A location of the at least one line-scan camera (56) in the intaglio printing press along a delivery path of the sheet-like or web-like material is selected in such a way that cyclical vibrations that spread periodically throughout the intaglio printing press during operation of the intaglio printing press do not occur while the camera system (55) is scanning the printed area of the sheet-like or web-like material and acquiring a complete image of the printed area.
Abstract:
Bogenverarbeitende Maschine zur Qualitätsprüfung von Bogen bei der Herstellung von Banknoten oder anderen Wertpapieren, wobei die Bogen mit einer Mehrzahl von in Spalten und Reihen angeordneten Nutzen versehen sind, umfassend : -einen Bogenanleger (01) zum Zuführen einzelner Bogen ; -eine dem Bogenanleger (01) nachgeordneten Inspektionsvorrichtung zur Qualitätsprüfung der Bogen ; und -einen der Inspektionsvorrichtung nachgeordneten Bogenausleger (26) mit wenigstens einem ersten Stapel (27; 28) für Bogen, deren Qualität als zureichend bewertet wurde, und wenigstens einem anderen Stapel (29) für Bogen, deren Qualität als unzureichend bewertet wurde, wobei die Inspektionsvorrichtung mindestens die folgende Komponente umfasst: -eine erste Inspektionseinrichtung (A; B) zum Erfassen von Bilddaten einer Oberfläche der Vorderseite der Bogen ; -eine zweite Inspektionseinrichtung (A; B) zum Erfassen von Bilddaten einer Oberfläche der Rückseite der Bogen; -eine dritte Inspektionseinrichtung (C) zum Erfassen von Bilddaten der Lichtdurchlässigkeit der Bogen; und -eine Bewertungseinrichtung zum Bewerten der Qualität der Bogen anhand des Erfassungsergebnisses jeder Inspektionseinrichtung (A, B, C).