摘要:
The invention relates to a lift (03a) for use on a cylinder (010a) of a rotary printing machine. The lift comprises a trailing end (12) having a folded limb (0.5) which is arranged in the direction of production of the cylinder. The limb comprises a flexible edge provided with a first lifting arm (26) directed towards the edge of the limb protruding from the flexible edge, and a second lifting arm (27) arranged between the flexible edge (28) of the limb and the edge of the end of the limb. The two lifting arms form together a blunt (phi) angle extending from the flexible edge (28) on the side of the limb connected to a working surface of the lift.
摘要:
The invention relates to a rotary roller printing press with a printing unit (02) for printing a web (03; 03') with six printed pages, arranged axially next to each other, comprising a superstructure (04) in which the web is cut longitudinally into three partial webs (03a; 03b, 03c), with a folding installation (11), comprising at least one roller (117; 118) for transporting the partial webs and at least one folding apparatus. The invention is characterised in that the printing unit, the at least one roller for transporting the partial webs of the folding installation and a folding apparatus arranged after the above are separately mechanically driven by drive motors (61; 119; 120).
摘要:
During mounting and dismounting of blankets (2) on cylinders (1), rollers (3) are pressed against the cylinder in order to ensure uniform winding and unwinding. It is necessary to apply a uniform positioning pressure for a low control and driving expenditure. According to the invention, such a device for pressing blankets against cylinders is obtained by applying simultaneously several movable rollers (3, 29), independently from each other, by means of a single actuator (4). According to a particular embodiment of the invention, first and second rollers can be actuated for respectively mounting and dismounting the blanket. The assembly can be protected against contamination by moving a protection (47) by means of the same actuator. A stop is used for the correct positioning of the plate at the forward end.
摘要:
The invention relates to a device for clamping and/or jamming flexible plates (02) with bent suspension legs (06, 07) on a printing machine cylinder. According to the invention, said device consists of a three-armed, pivotable strip section (14), which is located in the cylinder recess (03). The first arm (16) can be activated against the force of springs (34) by means of an air hose (33), while the second arm (17) is arranged in such a way that it can be pressed against a suspension leg (07) that rests on the recess wall (13) with its free end. The third arm (18) is pivotably mounted in the cylinder recess and supports at least one jamming roller (31). Said roller is supported on the cylinder recess and can therefore interact with the other suspension leg (06). The invention hereby provides a robust, simply constructed device which is also economical to produce.
摘要:
The invention concerns an ink duct (1) disposed in a working position (A) on an ink-metering roller (4) for a rotary printing press. According to the invention, the ink duct can be cleaned easily since it is disposed so as to be pivoted into a second, that is emptying, position (B), in which the printing ink is collected in a very low channel (44).
摘要:
The invention relates to a printing group of a printing press comprising a transfer cylinder (6), a form cylinder, and a first roller (28) of an inking unit (08), which cooperates with the form cylinder as an ink application roller (28). The inking unit (08) is embodied with two axially traversing friction cylinders (33, 33') which are serially disposed in the inking path. The first roller (28) has substantially the same diameter as the form cylinder.