# US 4,398,137 A · Control provisions for servo component at printing or binding machines

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- Number: US 4,398,137 A
- Document ID: US4398137A
- Status: Granted
- Kind: A
- Application number: 06/250,702
- Filed: 1981-04-03
- Granted: 1983-08-09
- Earliest claimed: 1980-10-04
- Assignees: VEB Kombinal Polygraph "Werner Lamberz" Leipzig
- Inventors: Max Janicki; Hans-Georg Liefke; Reinhart Keil; Gerd Geyer
- Web page: https://patentgrep.com/patent/US4398137A

## CPC

- B41F 31/045: {Remote control of the duct keys}
- B42B 9/00: Devices common to machines for carrying out the processes according to more than one of the preceding main groups (auxiliary equipment in making paper articles B31F; auxiliary equipment in printing machines B41; conveyors in general B65G; {handling sheets in general B65H})
- B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L)
- B42B: PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO (nailing or stapling in general B25C, B27F; machines for both collating or gathering and permanently attaching together sheets or signatures B42C1/12; temporarily attaching sheets together B42F)

## Abstract

A regulating device for servo components such as for example inking, dampening, format setting or deckle size setting screws employed at printing and binding machines for regulating deviations from set points. A measuring device for determining the position of the servo component is followed by a storage for actual setting values having its output connected to a comparison circuit. A second input of the comparison circuit is connected to a storage for set point values and the output of the comparison circuit is connected via a control circuit to the servo component. The storage for actual setting values is connected via a decoder to a display unit. A carrier for set point value data is connected to the storage for set point values. A clock generator is connected to the inputs of the storage for set point values and to the storage for actual setting values.

## Claims

### Claim 1

A regulating device for servo component, comprising a servo component,
a measuring device for determination of the actual setting of the servo component;
a storage for actual setting values connected to the measuring device;
a storage for set point values;
a comparison circuit connected to the storage for actual setting values and to the storage for set point values and operative for obtaining a deviation signal;
a set point value carrier connected to the storage for set points;
a clock generator connected to the storage for actual setting values and to the storage for set point values;
a decoder connected to the storage for actual setting values;
a display unit connected to the decoder; and
a control circuit having an input connected to the comparison circuit and having an output connected to the servo component and operative for controlling the servo component by using the deviation signal.

### Claim 2 (depends on 1)

The regulating device for servo components according to claim 1 where the storage for actual setting values coincides with the measuring device.

### Claim 3 (depends on 1)

The regulating device for servo component according to claim 1 wherein the control circuit comprises a digital to analog converter.

### Claim 4 (depends on 1)

The regulating device for servo component according to claim 1 wherein the comparison circuit is an expanded non-equivalence circuit.

### Claim 5 (depends on 4)

The regulating device for servo component according to claim 4 wherein the expanded non-equivalence circuit comprises a digital to analog converter in parallel to the non-equivalence function.

### Claim 6 (depends on 1)

The regulating device for servo component according to claim 1 wherein the storage for actual setting values, the storage for set point values, the comparison circuit, the control unit and the decoder are provided as an integrated circuit.

### Claim 7 (depends on 1)

The regulating device for servo component according to claim 1 wherein the display unit is provided as a diode display.

### Claim 8 (depends on 1)

The regulating device for servo component according to claim 1 wherein the measuring device is an incremental feed.

### Claim 9 (depends on 1)

The regulating device for servo component according to claim 1 wherein scanning code disks are coordinated to the storage for actual setting values.

### Claim 10

A method for controlling servo component comprising measuring the actual value of the setting of the servo component;
storing the actual setting value in a storage for actual setting values;
storing set point values in a storage for set point values;
comparing the actual values with the set point values for obtaining a deviation signal;
providing set point values from a set point value carrier to the storage for set point values;
decoding the stored actual values to provide decoded values and displaying the decoded values;
clocking the storage for actual values and the storage for set point values with signals from a clock generator; and
controlling the servo component by using the deviation signal in a control circuit for the servo component.