Abstract:
There is described an intaglio printing press (1; 1*) comprising an intaglio cylinder (8) and an ink wiping system (10) with a rotating wiping roller assembly (11) contacting a circumference of the intaglio cylinder (8) for wiping excess ink from the surface of the intaglio cylinder (8), a rotational speed of the wiping cylinder being adjustable with respect to a rotational speed of the intaglio cylinder (8). The intaglio printing press (1; 1*) comprises an adjustable drive unit (25), which adjustable drive unit (25) is interposed between the wiping roller assembly (11) acting as a rotating output body of the adjustable drive unit (25) and a driving gear (100) coupled to the intaglio cylinder (8) and acting as a rotating input body of the adjustable drive unit (25). The adjustable drive unit (25) is designed to allow selected adjustment of a rotational speed of the wiping roller assembly (11) with respect to a rotational speed of the driving gear (100). In an adjusting state of the adjustable drive unit (25), driving into rotation of the wiping roller assembly (11) is adjusted by means of an adjustment motor (700) of the adjustable drive unit (25). In a non-adjusting state of the adjustable drive unit (25), the adjustment motor (700) is inoperative and driving into rotation of the wiping roller assembly (11) is performed exclusively mechanically via the adjustable drive unit (25), the wiping roller assembly (11) rotating at a defined rotational speed with respect to the rotational speed of the intaglio cylinder (8).
Abstract:
A machine for processing sheets comprises a number of modules through which the sheets for processing pass in a serial manner, one after the other. The modules each comprise a sheet introduction interface and/or a sheet output interface, whereby for at least one of the modules the sheet introduction interface and/or the sheet output interface may be selectively coupled to sheet output interfaces or sheet introduction interfaces of at least two other modules.
Abstract:
The invention relates to a device for controlling a sample quality comprising a first inspection unit for detecting image data of the upper surface of a sample front face and an evaluation unit for estimating the sample quality on the base of detection results of the inspection unit. A second inspection unit makes it possible to detect the rear face of the sample and a third inspection unit makes it possible to expose the sample to a radiation.
Abstract:
There is described a printing press (1; 1*; 1**) comprising an ink-receiving cylinder (9; 8) receiving ink from an inking system (90-93, 90*, 93*; 95-99, 95*, 99*; 100-104, 100*, 104*) having a plurality of ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) arranged one above the other around part of a circumference of the ink-receiving cylinder (9; 8), the ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) being inked by a corresponding plurality of inking devices (90, 90*; 95, 95*; 100, 100*), the printing press (1; 1*; 1**) further comprising an inking carriage (52; 55; 57) supporting the plurality of inking devices (90, 90*; 95, 95*; 100, 100*), which inking carriage (52; 55; 57) can be moved with respect to the ink-receiving cylinder (9; 8) between a working position and a retracted position. The at least one selected inking device (90*; 95*; 100*) amongst the plurality of inking devices (90, 90*; 95, 95*; 100, 100*) of the inking system (90-93, 90*, 93*; 95-99, 95*, 99*; 100-104, 100*, 104*) is supported onto the inking carriage (52; 55; 57) via a movable frame (60; 65; 70), which movable frame (60; 65; 70) is supported onto the inking carriage (52; 55; 57) to allow movement of the selected inking device (90*; 95*; 100*) with respect to the inking carriage (52; 55; 57) and with respect to a remaining part (90; 95; 100) of the plurality of inking devices (90, 90*; 95, 95**; 100, 100*).
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) which forms an integral part of the ink wiping system (100; 100'; 100") and is 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). In the working position (W) of the wiping roller assembly (102; 102*), the wiping roller retracting device (150) is coupled to the wiping roller assembly (102; 102*). 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 an intaglio printing press comprising (i) a stationary machine frame (01 ) supporting an intaglio printing cylinder (07) and an impression cylinder (06) contacting the intaglio printing cylinder (07), (ii) an inking system (12, 13, 16) for inking the intaglio printing cylinder (07), which inking system (12, 13, 16) comprises an ink-collecting cylinder (12) designed to contact the intaglio printing cylinder (07) and at least one inking device (13, 16) for supplying ink to said ink-collecting cylinder (12), and (iii) at least a first mobile carriage (1 1 ) supporting the ink-collecting cylinder (12), which first mobile carriage (1 1 ) is adapted to be moved with respect to the stationary machine frame (01 ) between a working position where the ink-collecting cylinder (12) contacts the intaglio printing cylinder (07) and a retracted position where the ink-collecting cylinder (12) is retracted away from the intaglio printing cylinder (07). The axis of rotation of the ink-collecting cylinder (12) lies below a horizontal plane (P0) intersecting the axis of rotation of the intaglio printing cylinder (07) and a plane (P2) intersecting the axis of rotation of the ink- collecting cylinder (12) and the axis of rotation of the intaglio printing cylinder (07) forms, in the working position of the first mobile carriage (11), an acute angle (β) with respect to the horizontal plane (P0).
Abstract:
There is described an intaglio printing press comprising (i) a stationary machine frame (01 ) supporting an intaglio printing cylinder (07) and an impression cylinder (06) contacting the intaglio printing cylinder (07), and (ii) an inking system (12, 13, 16) for inking the intaglio printing cylinder (07), which inking system (12, 13, 16) comprises an ink-collecting cylinder (12) designed to contact the intaglio printing cylinder (07) and at least one inking device (13, 16) for supplying ink to said ink-collecting cylinder (12). The intaglio printing press further comprises a driving system (110; 115; 116) for rotating the ink-collecting cylinder (12) independently of the intaglio printing cylinder (07) and the impression cylinder (06) at least during maintenance operations.
Abstract:
There is described an intaglio printing press comprising (i) a stationary machine frame (01 ) supporting an intaglio printing cylinder (07) and an impression cylinder (06) contacting the intaglio printing cylinder (07), (ii) an inking system (12, 13, 16) for inking the intaglio printing cylinder (07), which inking system (12, 13, 16) comprises an ink-collecting cylinder (12) designed to contact the intaglio printing cylinder (07) and at least one inking device (13, 16) for supplying ink to said ink-collecting cylinder (12), and (iii) at least a first mobile carriage (1 1 ) supporting the ink-collecting cylinder (12), which first mobile carriage (1 1 ) is adapted to be moved with respect to the stationary machine frame (01 ) between a working position where the ink-collecting cylinder (12) contacts the intaglio printing cylinder (07) and a retracted position where the ink-collecting cylinder (12) is retracted away from the intaglio printing cylinder (07). The intaglio printing press further comprises a correcting and adjusting system (80) for correcting and adjusting a rotational position of the ink-collecting cylinder (12) with respect to a rotational position of the intaglio printing cylinder (07) following maintenance operations to ensure proper circumferential register between the ink-collecting cylinder (12) and the intaglio printing cylinder (07) in the working position of the first mobile carriage (1 1 ).
Abstract:
There is described a printing press (1; 1*; 1**) comprising an ink-receiving cylinder (9; 8) receiving ink from an inking system (90-93, 90*, 93*; 95-99, 95*, 99*; 100-104, 100*, 104*) having a plurality of ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) arranged one above the other around part of a circumference of the ink-receiving cylinder (9; 8), the ink-applying cylinders or rollers (93, 93*; 99, 99*; 104, 104*) being inked by a corresponding plurality of inking devices (90, 90*; 95, 95*; 100, 100*), the printing press (1; 1*; 1**) further comprising an inking carriage (52; 55; 57) supporting the plurality of inking devices (90, 90*; 95, 95*; 100, 100*), which inking carriage (52; 55; 57) can be moved with respect to the ink-receiving cylinder (9; 8) between a working position and a retracted position. The at least one selected inking device (90*; 95*; 100*) amongst the plurality of inking devices (90, 90*; 95, 95*; 100, 100*) of the inking system (90-93, 90*, 93*; 95-99, 95*, 99*; 100-104, 100*, 104*) is supported onto the inking carriage (52; 55; 57) via a movable frame (60; 65; 70), which movable frame (60; 65; 70) is supported onto the inking carriage (52; 55; 57) to allow movement of the selected inking device (90*; 95*; 100*) with respect to the inking carriage (52; 55; 57) and with respect to a remaining part (90; 95; 100) of the plurality of inking devices (90, 90*; 95, 95**; 100, 100*).