Veb Kombinat Polygraph 'werner Lamberz Leipzig'

Helmut Schuck

Hans Johne

Karl-Heinz Forster

Arndt Jentzsch

Ludwig Friedrich

Horst Schulz

Alfred Schott

Karl-Heinz Foerster

Wolfgang Muller

Klaus Schanze

Monika Kuehn

A control system for controlling a plurality of subprocess means, for example adjustment drives for ink zone adjusting screws in a plurality of modes of operation. The control system includes an input device, a start device and a number of control subsystems arranged in groups and connected to respective selection systems. The latter are in turn connected to a main control selection circuit which is in connection with the start device. Each group of the control subsystems and each group of the control selection circuits are connected via a first control code bus and a second control code bus, respectively, to the main control selection circuit.

Control system for printing machines

In a control system for a plurality of ink zone adjusters in a printing machine each adjuster is connected via a main control circuit and a first bidirectional address and data bus to an input and output unit where the measured data are stored on specific addresses to be retrieved for later use. An additional storage control circuit is connected to the first bidirectional data bus to provide an intermediate storage of the measured or retrieved data. The addtional storage control circuit includes an addressing circuit controlled by a program control circuit to apply addresses pertaining to individual printing units to corresponding storing circuits. These corresponding storing circuits are connected through the first bidirectional data bus via a processing circuit including a switching device controlled by the program control circuit to connect the additional storing circuits either directly, or via an adder or via a coder, so as to compensate for play in the mechanical components of the adjusters or to separate coarse and fine adjustment in the ink zones. A recording-reading storing device is provided in the input and output unit, which is connected to a double four-contact switch interconnected between the main control circuit and the circuits connected to the position sensors and the setting motors of the respective ink zone adjusters. All the adjustment steps can be simulated on the recording-reading storing device and the ink zones can be adjusted without interferring with the printing process.

Control system for ink zone adjusters

Remote control desk for multicolor printing machine

Disclosed is a control system for an ink blade of a printing machine provided with a series of key setting units each having a key position sensor and a key drive controlled by an adjusting device described in patent application Ser. No. 252,126. In order to achieve proper adjustment of marginal key setting units, there is provided a switching unit with a plurality of contacts assigned to respective key position measuring sensors and including additional switching contacts assigned to imaginary key position setting units adjoining the real setting units at each end of the ink zone. The additional marginal switching contacts are connected to the output of assigned sample-and-hold members which apply thereto the measured value from the extreme actual position sensors so that comparing differential transducer comparing the measured values of consecutive pairs of position sensors always produces a starting difference which does not exceed a predetermined limit value.

Remote control system for ink zones in printing machines

A remote adjustment and measuring unit for an ink zoning screw of a doctor blade mechanism in an ink well of a printing machine comprises a housing in which is adjustably mounted a guiding bearing for the rear end portion of the zoning screw; a driving electric motor and a measuring potentiometer are provided respectively with pinions in mesh with a transmission gear on the rear end portion of the screw, and the motor and the potentiometer are each mounted on an adjustable supporting plate.

Remote adjustment and measuring unit for ink zoning screw of a doctor

A control device for remote adjustments of ink zones in a printing press includes a control system comprising program request control connected respectively to multiplexers provided at the input side of the control system and to multiplexers provided at the output side of the control system, and a single motor control system. The multiplexers are connected to an adjustment system activating ink knife support elements. The control device further includes a differential former interconnected between the program control request and the multiplexers at the input side of the control system, and a computer interconnected between the differential former and the single motor control unit. The motor control unit controls the adjustment system so that the unsteady course of the positions of the ink knife support elements is balanced to the steady function of the knife bending curve.

Growing community of inventors

Coswig, Germany

Helmut Schuck