摘要:
The printing tower consists of a plurality of printing units superposed vertically for the offset printing of a continuous material web, each printing unit including of at least one printing group having a forme cylinder, a transfer cylinder and an inking unit including inking rollers, the printing tower including at least one electronic control module associated with each printing unit for controlling the printing unit, the printing tower including of a first level and a second level each containing at least one printing unit, the first level and the second level being situated one above the other, wherein at least one control module of a printing unit of the second level is disposed on the first level.
摘要:
A rotary press is provided. The rotary press includes a plurality of print towers aligned in a longitudinal direction, each print tower having a frame stationary relative to the ground, and at least one lift designed to move people. The at least one lift may be an intermediate lift designed to move people. The intermediate lift is positioned so the lift is vertically movable in an intermediate space between two adjacent print towers, and serves both print towers between which the lift is positioned.
摘要:
A printing press includes a frame that supports one or more printing units. Each printing unit includes a retractable inker module cantileverly supported by the frame, an ink injection system having a pump, a sidelay registration mechanism for one or more plate cylinders of the printing unit, an extension sleeve extending a length of a plate cylinder sleeve, and an expandable layer for each blanket cylinder and plate cylinder that provides changing the inner diameter of the blanket cylinder and the plate cylinder.
摘要:
To modify an existing printing press from its original length/cut off to a different cut off, a sub-frame may be mounted on an existing frame of a printing press. The sub-frame permits the relocation of bearing supports for various printing cylinders, such as, for example, the plate cylinders and blanket cylinders. In addition to mounting the sub-frame on the existing frame, new plate and blanket cylinders having different sizes than the plate and blanket cylinders used in the existing printing press may be mounted in the sub-frame to provide different printing lengths/cut offs. Suitable sleeves, such as the eccentric mounting sleeves may be provided as necessary in order to mount the cylinders to the sub-frame.
摘要:
A sleeve-shaped printing element for mounting on a carrying cylinder in a printing unit of a web-processing rotary printing machine. The element includes a structure formed of material permitting radial expansion of the sleeve-shaped printing element, the carrying cylinder has an elongated axial extent and being formed with ducts for discharging an expansion medium. The ducts open on a circumferential surface of the carrying cylinder, and the expansion medium is pressurizable by a pressure source. The sleeve-shaped printing element is formed with an inner diameter increasing from one end to the other end of the printing element, and is formed with an at least approximately constant wall thickness; and a combination of the printing element and the carrying cylinder.
摘要:
A de-duster for a moving printing material web includes at least one blower nozzle assigned to a first side of the printing material web, and at least one blower nozzle assigned to a second side of the printing material web. The blower nozzles are set counter to web travel direction at an angle α. The de-duster further includes at least one extraction nozzle assigned to the first side of the printing material web, and at least one extraction nozzle assigned to the second side of the printing material web. The extraction nozzles are set counter to the web travel direction at an acute angle β. Each of the at least one blower nozzle is disposed between the at least one extraction nozzle at a respective side of the printing material web and the respective side of the printing material web. A combination of the de-duster and a cutting device, a folder with the combination, and a web-processing printing press in combination with the folder, are also provided.
摘要:
An integrated ink rail assembly includes at least one page pack mounted directly to a manifold, an ink rail mounted to the manifold, and an orifice rail mounted to the ink rail. An ink source is connected to the page pack. The page pack, manifold, ink rail, and orifice rail define a plurality of ink passages to deliver ink from the ink source to a drum. The ink passage may be directed towards the middle of the assembly such that a web smaller than the page pack can be printed.
摘要:
The loading device according to the invention comprises a magazine for receiving at least one printing plate and transferring it from the magazine to the plate cylinder. It also comprises at least one guide rail to guide a printing plate during transfer thereof by cooperation with a notch of a front edge of the printing plate, the notch sliding along the guide rail during the transfer.
摘要:
Disclosed herein is an ink rail assembly having a key sharing provision. The ink rail assembly includes a page pack having an ink inlet for receiving ink from an ink source and an ink outlet; and an ink rail fluidly coupled to the page pack ink outlet. The ink rail includes at least two ink keys for delivering ink to a drum of a printing press, and a diverter assembly in fluid communication with the at least two ink keys and to the page pack to control the flow of ink from the page pack and selective divert the flow of ink between the at least two ink keys.
摘要:
A method is provided for a rotary press of the type including at least one cylinder for printing and feeding a web to be printed, and a device for driving in rotation the or each printing and feed cylinder.In normal operation, the at least one cylinder is driven by applying thereto a positive drive torque and a positive drive power, and, in the event of the web breaking, the at least one cylinder is braked by the associated drive device.According to one embodiment of the invention, in an emergency shutdown step, the torque or the power applied to the at least one printing and feed cylinder by the associated drive device is limited in such a manner as not to exceed a predetermined torque threshold or power threshold.