A method for producing a dampening system housing, includes the steps of providing a longitudinal housing element prepared from a flat component, making available two side parts with grooves for accommodating the longitudinal housing element, inserting the longitudinal housing element in the grooves and sealing the longitudinal housing element in the grooves, as well as a correspondingly produced dampening system housing.
B41L 23/08 - Devices for treating the surface of sheets, webs, or other articles in connection with printing by damping, e.g. by moistening copy-sheets in connection with hectographic printing using spray elements
The invention relates to an ink delivery device (30) for the supply of an inking system (20) of a printing machine (10) with ink, comprising an ink reservoir (31), a drive that is connected to the ink reservoir (31) and configured such that pressure can be applied to the ink reservoir (31) by means of the drive, and a controller for actuating the drive of the ink delivery device (30), wherein the drive and the controller are configured and connected to each other such that the ink delivery device (30) can be operated based on a method, and to such a method, wherein the method comprises the following steps: - initiating an ink delivery process, increasing the pressure in the ink reservoir to a target operating pressure, adjusting the pressure in the ink reservoir to an adjusted operating pressure, and terminating the ink delivery process.
Arrangement on a printing press (1) having a process-agent cleaning apparatus (8), a process-agent line (5) which connects the process-agent cleaning apparatus (8) and the printing press (1), and a flotation unit (9), and method for operating an arrangement of this type.
Disclosed is an arrangement on a printing machine, comprising at least one low-temperature (NT) control point, at least one medium-temperature (MT) control point, and at least one high-temperature (HT) control point which are disposed in a low-temperature zone (NT zone), a medium-temperature zone (MT zone), and at least one high-temperature zone (HT zone) of a printing machine and are designed such that the NT zone can be controlled to a low temperature by means of the NT control point, the MT zone can be controlled to a medium temperature by means of the MT control point, and the HT zone can be controlled to a high temperature by means of the HT control point, the low temperature being lower than the medium temperature, and the medium temperature being lower than the high temperature. The arrangement further comprises a low-temperature (NT) control device and a high-temperature (HT) control device. The temperature at the MT control point can be controlled by means of both the NT control device and the HT control device.
The invention relates to a dampening-solution circuit (1) for a printing press and to a printing press having a dampening-solution circuit (1) of this type, wherein the dampening-solution circuit (1) has a dampening unit (2), a dampening-solution main container (3), a dampening-solution supply means (4) and a dampening-solution return line (5), wherein the dampening-solution supply means (4) is arranged between the dampening-solution main container (3) and the dampening unit (2) in such a way that dampening solution can be supplied to the dampening unit (2) from the dampening-solution main container (3) via the dampening-solution supply means (4), wherein the dampening-solution return line (5) is arranged between the dampening unit (2) and the dampening-solution main container (3) in such a way that dampening solution can be returned from the dampening unit (2) via the dampening-solution return line (5) into the dampening-solution supply means (4), wherein a cleaning branch (6) having a dampening-solution cleaning apparatus (7) is provided in the region of the dampening-solution return line (5), which cleaning branch (6) is designed in such a way that, during operation of the dampening-solution circuit (1) from a dampening-solution main flow (FH), a first dampening-solution part flow (FT1) can be guided out of the dampening-solution main flow (FH) through the dampening-solution cleaning apparatus (7), and wherein the cleaning branch (6) is connected to the dampening-solution circuit (1) in such a way that the dampening solution which is cleaned in the dampening-solution cleaning apparatus (7) can be returned into the dampening-solution supply means (4).
The invention relates to a cooling device for printing machines, comprising a refrigerating circuit (10) and a cooling water circuit (12), wherein the refrigerating circuit (10) is provided with a compressor (14) having a compressor drive and a regulator (34). The compressor is configured such that the compressor output of the compressor (14) can be controlled via the regulator independently of the rotational speed of the compressor drive.
The invention relates to an apparatus (10) for supplying a printing press with washing liquid, having at least one metering device (18) for metering a volume of washing liquid which is to be fed to the printing press, a washing liquid supply (32, 34, 36), a feed line (20, 22, 24) for feeding washing liquid to the metering device (18), a delivery device (26, 28, 30) for feeding in washing liquid from the washing liquid supply (32, 34, 36) into the feed line (20, 22, 24), and an intermediate container (48) which is arranged in the feed line. The intermediate container is provided at its upper end with a venting valve (80), from which a leakage line (82) leads away to a collecting container (84) to return washing liquid which emerges from the venting valve (80).
G01F 11/28 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
8.
CLEANING METHOD AND CLEANING DEVICE FOR A CYLINDER SURFACE OF A PRINTING MACHINE
The invention relates to a cleaning device (10) for a cylinder surface of a printing machine, with a spraying arm (12) for spraying a cleaning fluid onto the cylinder surface or onto a cleaning towel for cleaning same, and with a delivery unit (16) for delivering the cleaning fluid to the spraying arm, said delivery unit (16) having a converter (20) for transferring the cleaning fluid into a homogeneous liquid-gas mixture. The invention is characterized in that the converter (20) is supplied with a gas for enriching the cleaning fluid.
The invention relates to an apparatus for cleaning the surfaces of impression cylinders with the aid of a cleaning cloth which is transported from a supply roller over a pressure strip to a collecting shaft for dirty cleaning cloth, having an adjusting device for advancing and withdrawing the pressure strip in relation to the impression cylinder, a drive which lies behind the pressure strip being provided for the advance of said adjusting device. The pressure strip is guided within a bar profile of substantially U-shaped cross section, in which a groove-shaped pressure chamber (14) is situated at the base of the U-profile, which groove-shaped pressure chamber (14) extends over the length of the bar profile and out of which an elongate drive element (16, 30) can be advanced against the pressure strip by the introduction of a pressure medium into the pressure chamber.
Disclosed is a washing apparatus for an offset printing press, comprising several washing points on the cylinders of the printing press and a supply system for delivering water, cleaning agent, and compressed air to spray a mixture of water and cleaning agent (detergent) onto the cylinder surfaces that are to be cleaned. The inventive washing apparatus is characterized by annular ducts (14, 16, 18) for the water, cleaning agent, and compressed air, which extend from a central supply unit (10) along all potential washing points of the printing press. Said annular ducts (14, 16, 18) are provided with a number of modular washing units (20, 22) which are located directly at the washing points and are coupled to or enclosed in the annular ducts (14, 16, 18), and valves (40, 42, 48, 50, 54) for discharging water, cleaning agent, and compressed air.
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