Fischer & Krecke Gmbh & Co.

Fischer & Krecke

Fischem & Krecke Gmbh & Co.

Bobst Bielefeld Gmbh

Klaus Schirrich

Wilfried Kolbe

Bodo Steinmeier

Manfred Terstegen

Wolfgang Brusdeilins

Diethard Obermeier

Lars Gr&uuml;ter

Christoph Hars

Fred Rostalski

Wilfried Tappe

Andreas K&uuml;ckelmann

Andreas Kückelmann

Michael Schmitt

Hartmut Grosse

Ewald Steinweg

Dieter Obermeier

Gunter Niemeyer

Hans-Rudolph Van Den Maagdenberg

Ralf Mulch

Lars Gruter

Harald Bollh&ouml;fener

Ottomar Tessmann

Harald Bollhöfener

A method for shifting a doctor blade in its longitudinal direction, the doctor blade being set against a cylinder of a printing machine, wherein the shift movement of the doctor blade is such that, for most of the time of the print operation, the shift velocity of the doctor blade is in a range from 0 to 0.1 m/s, and a printing machine having a doctor blade assembly, including a doctor blade arranged to be set against a cylinder, and a shift mechanism for shifting the doctor blade in its longitudinal direction, such that the shift mechanism is adapted to execute the method.

Method and apparatus for shifting a doctor blade

A method of manufacturing an anilox roller, in particular for a flexographic printing press, the anilox roller comprising a cylindrical core and a sleeve detachably held on the core and having at its surface an anilox layer with a grid pattern of pits, including the steps of mounting the sleeve on the core, and then forming the anilox layer on the sleeve.

Method of manufacturing an anilox roller for a flexographic printing press

A method of printing with a rotary printing press having a plurality of printing cylinders that are adapted to be adjusted on and off from a running web, with a length of a printed image being larger than a peripheral length of the largest one of the printing cylinders, the method including the steps of subdividing the printed image into elements, printing these elements with different printing cylinders, and periodically shifting at least one of the printing cylinders off from the web, each time for at least a duration of one turn of the printing cylinder.

Printing method

A device for handling sleeves ( ) for cylinders of printing presses, wherein a carrying tube ( ) is provided, on which a mounting device ( ), engaging these sleeve ( ), is disposed for mounting the sleeve in a position, which is aligned coaxially with the carrying tube.

Device for handling printing cylinder sleeves

A printing press with a doctor blade device ( ), which has a doctor blade ( ), which can be placed against a cylinder ( ), wherein the doctor blade ( ) is caused to oscillate with a frequency of at least 1 Hz by an oscillator ( ).

Printing press with a doctor blade device

A seal for a chambered doctor blade ( ) of a printing machine, in the form of a rubber-elastic body, which is inserted at the end of the chambered doctor blade in a seal holder ( ) and, with an obliquely applied lip ( ), lies against the periphery of a roller ( ), against which the chambered doctor blade is placed, wherein the seal ( ) has a second lip ( ), which forms a V-shaped cross section with the first.

Seal for chambered doctor blade

An engraved ink transfer cylinder for a flexographic printing press, wherein the roller body ( ) is clamped detachably on a continuous axle ( ) and surrounds this axle ( ) at a distance.

Engraved transfer cylinder for a flexographic printing press

A cleaning device for cleaning blocks clamped on a rotationally driven printing cylinder of a printing machine, the cleaning device including a rotatable cleaning roller, cleaning organs disposed on a periphery of the cleaning roller and which can be placed in contact with a peripheral surface of a printing cylinder, with angular positions of the cleaning organs varying in an axial direction of the cleaning roller, and the cleaning organs, in each angular position, are disposed on the periphery of the cleaning roller in only a single axial section of the cleaning roller, and control equipment for locking the cleaning organs in different angular positions.

Printing machine with block-cleaning device

A seal for a chambered doctor blade ( ) of a printing machine, in the form of a rubber-elastic body, which is inserted at the end of the chambered doctor blade in a seal holder ( ) and lies against the periphery of a roller ( ) against which the chambered doctor blade is placed, wherein the part of the seal ( ) taken up in the seal holder ( ), is constructed as a solid, rectangular support ( ), which lies, with one end face, with a smooth surface ( ), in contact with the chambered doctor blade ( ) and is surrounded at the three remaining sides by continuous tolerance equalization lips ( ).

A flexographic printing press with a back-pressure cylinder ( ) and at least one inking unit ( ), which has an exchangeable printing cylinder ( ), which can be placed against the back-pressure cylinder ( ), an engraved ink transfer cylinder ( ), which can be placed against the printing cylinder and a chamber doctor blade ( ), which can be placed against engraved ink transfer cylinder, wherein a washing cylinder ( ) is constructed to be inserted in the inking unit ( ) instead of the printing cylinder ( ) and to apply cleaning liquid to the surface of the back-pressure cylinder ( ).

Flexographic printing press with device for washing the back-pressure cylinder

Method of exchanging a printing cylinder sleeve and printing machine for carrying out the method

A printing cylinder with a cylinder core ( ), on which a carbon fiber-containing casing ( ) is disposed, wherein the casing ( ) is self-supporting and held at a distance from the peripheral surface ( ) of the cylinder core ( ) by disks ( ) disposed at the two ends.

Printing cylinder

A printing machine with a cylinder sleeve (,), which can be rotationally driven and is supported at both ends with protruding axle journals (,) directly in the machine frame (,), and with a shaft (,), which passes through the cylinder sleeve and can be driven along with it, such that the rotational driving takes place over the shaft (,) and the cylinder sleeve (,) can be set axially against a torque transfer element (,), which is seated on the shaft.

Printing machine

A drive clutch for connecting a drive shaft (,) with an exchangeable cylinder (,) of a printing machine, such that, at one end of the cylinder (,), a locking part (,) is provided and that, in or on the drive shaft, a spanner (,) is disposed, which has a recess (,), which opens up radially and into which the locking part (,) can be introduced positively, and that the spanner (,) can be retracted axially, in order to pull the cylinder (,) with the help of the locking part (,) against the end of the drive shaft (,).

Drive clutch for a pressure cylinder

Apparatus for detecting collisions in a printing machine having at least one rotationally driveable rotary body (,) and an actuator (,) for adjusting the rotary body in a direction normal to the axis of rotation, the apparatus including a torque sensor (T) and/or an angle increment sensor (&OHgr;) for detecting the driving torque and/or the rotary speed of the rotary body (,), and a control unit (,) adapted to detect a collision of the rotary body with another component member on the basis of the signal of the torque or angle increment sensor and to stop the actuator (,) thereupon.

Growing community of inventors

Bielefeld, Germany

Klaus Schirrich