EP2022634B1 - Device containing a control unit and a web regulator of a printing machine with multiple actuator units - Google Patents

Description

The invention relates to a device comprising a control unit and a multiple position units having image path controller of a printing press according to claim 1.

As a fan-out effect is referred to wet-Rollenhoffsetdruck a width elongation of a printing substrate, z. B. paper web, by moisture absorption. Resulting register differences between the successive pressure points in the print (colors) are to be corrected to produce a printed product with a good print quality and to avoid too large amounts of waste. The correction can be done by z. In a printing machine designed as an eight-high tower, after the first two pressure points, d. H. i. d. R. After the lower printing unit, a Bildbahnregler is installed, which deforms the fan-out widened paper web S-shaped and thus corrects the position of the colors to each other.

By the EP 0 850 761 A2 a Registerverstellsystem for register adjustment of a material web is known, which discloses all the features of the preamble of claim 1, including: a register correction, which deflects the material web and a printing width of the material web changes, and which is movably mounted in the path of the material web; a first actuator unit connected to the register correction wheel and a control unit and activating the registration correction wheel to adjust the printing width of the web; and a first position monitoring unit connected to the register correction wheel and the control unit and monitoring the position of the register correction wheel, the control unit preferably being integrated in a central machine control system.

By the US 6,244,182 B1 is a Bildbahnregler with several engageable against a web of rollers known, the employment of the respective rollers is motorized.

By the WO 2005/007406 A2 a method for influencing the fan-out effect is known, wherein for influencing the fan-out effect, first the image of a sensor is evaluated, which detects the print image on a scan width of at least a quarter of a web width, and in deviation from a setpoint specification one Actuator for influencing the fan-out effect, a control command is transmitted

By the US 5,553,542 A a control system in a multi-color roller printing machine is known, with which a width of a printing material is orthogonal to the transport direction adjustable, wherein in a running over the width of the printing material range z. B. rollers are movable against the substrate web, wherein a directed against the printing material travel of the rollers by a motor control is variable.

By the DE 297 18 907 U1 a device for correcting the fan-out effect on web-fed rotary printing presses is known, wherein a pivoting angle of individual adjustable to a paper web control elements and counter-actuating elements z. B. is individually pivotable from a machine control center.

By the DE 295 01 373 U1 is a z. B. arranged in a four-high tower device for correcting the fan-out effect on web-fed rotary printing presses with a train locally out of its plane deflecting actuator known, the actuator is actuated by a control loop, which contains a control device on the input side with a transmitter for the Deflection of the web in the direction of its width and the output side is connected to an actuating device of the actuating element, wherein in the direction of the width of the web a plurality of each formed as an image control rollers control elements may be provided, preferably at a control station, a display device is provided, inter alia, the adjustments of the image control rollers displays. The freely rotatably mounted image adjusting rollers are z. B. by means of electric motors, in the web plane into pivot. The pivoting takes place as a function of in the control device z. B. set by the operator, entered on the control station setpoints. The control device and the transmitter are z. B. components of a on the web register marks scanning color register control unit. The DE 295 01 373 U1 indicates that the designated as fan-out web elongation z. B. of the web speed, the distance of the pressure points, paper properties, the dampening solution amount, web width or web tension is affected.

By the DE 102 26 482 A1 a measuring potentiometer for positioning of control elements on printing machines is known, wherein a current angular position setpoint is transmitted via a bidirectional, serial interface of a machine control directly to a programmable evaluation, wherein a digital measurement signal of the measuring potentiometer after passing through the evaluation via a bus converter is routed to the serial interface and transferred from there to the machine control.

By the DE 43 27 646 A1 there is known a rotary lithographic press having a plurality of printing sections with a moistening unit, the printing sections being arranged along the paper web running line; and a plurality of web width adjusting devices disposed between two groups of printing sections, each adjusting device including a pressing force applying means for applying a pressing force on a side surface of a paper web to deform the paper web in a wavy surface, which is a shortening of the width causing the paper web; a pressure adjusting means for adjusting the pressure applied to the tooth surface by the pressing force applying means; and control means for controlling the pressure adjusting means in response to paper web information, e.g. B. Material, Abrnessung, web speed or the like and pressure information, z. B. displacements generated in the printed pattern.

By the WO 2005/072 967 A2 is a method for compensating a transverse strain of a substrate known, with a fan-out compensating deformation of the substrate z. B. mechanically carried preferably by both sides of the substrate to these salaried roles an image controller, these rollers are preferably driven independently rotatively, the deformation of the printing material by a controller controlling the image controller preferably steplessly within certain limits controllable, in particular z. B. is remotely controllable by a press belonging to the control room.

The invention has for its object to show a device comprising a control unit and a plurality of actuators having image path controller of a printing press, which a

Compensation of a fan-out effect caused transverse strain of a substrate improved.

The object is achieved by the features of claim 1.

The advantages that can be achieved with the invention are, in particular, that register differences between the pressure points (inks) following each other in the printing rapidly, ie. H. can be significantly reduced with a short reaction time nüring a current production of the printing press, the actuated actuators are easily integrated into an automatic open control chain or in an automatically running closed loop. Furthermore, the possibility is opened, depending on the respective production and / or the printing location compensation curve with a high operating comfort z. B, to adjust individually at a belonging to the printing press control console and, if necessary, automatically track in an ongoing production of the printing press. It is also advantageous that the actuators are each made very compact and, despite the use of electromechanical components by their preferably dust and moisture-proof encapsulation in their operation ensure high reliability.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

schematisch einen Achterturm einer Rollendruckmaschine;

Fig. 2

verdeutlicht den Fan-out-Effekt beim Durchlauf einer Papierbahn durch den Achterturm der Fig. 1;

Fig. 3

einen im Achterturm der Fig. 1 verwendeten Bildbahnregler in einer Baugruppendarstellung;

Fig. 4

eine Stelleinheit des in der Fig. 3 dargestellten Bildbahnreglers;

Fig. 5

eine perspektivische Ansicht von Einzelheiten der in der Fig. 4 dargestellten Stelleinheit;

Fig. 6

eine Programmmaske zur Einstellung des in der Fig. 3 dargestellten Bildbahnreglers;

Fig. 7

eine weitere Programmmaske zur Einstellung des in der Fig. 3 dargestellten Bildbahnreglers;

Fig. 8

eine Programmmaske mit einer für den in der Fig. 3 dargestellten Bildbahnregler eingestellten Kompensationskurve;

Fig. 9

ein Blockschaltbild betreffend eine Steuerung einer Vorrichtung aufweisend eine Steuereinheit und den mehrere Stelleinheiten aufweisenden Bildbahnregier gemäß mindestens einer der vorangegangenen Figuren.

Show it:

Fig. 1

schematically a four-high tower of a web-fed printing press;

Fig. 2

illustrates the fan-out effect when passing through a paper web through the Fourth tower of the Fig. 1 ;

Fig. 3

one in the four - tower Fig. 1 used image path controller in an assembly representation;

Fig. 4

an actuator of the in Fig. 3 illustrated image controller;

Fig. 5

a perspective view of details in the Fig. 4 illustrated actuator;

Fig. 6

a program mask for setting the in the Fig. 3 illustrated image controller;

Fig. 7

another program mask for setting the in the Fig. 3 illustrated image controller;

Fig. 8

a program mask with a for in the Fig. 3 illustrated image path controller set compensation curve;

Fig. 9

a block diagram relating to a control of a device comprising a control unit and the multi-actuators Bildbahnregier according to at least one of the preceding figures.

Fig. 1 schematically shows a four-high tower of a web press with both sides of a printing substrate 01, z. As a paper web 01, employees printing cylinder 02, in particular transfer cylinder 02, wherein two transfer cylinders 02 are employed in pairs against each other. On each side of the paper web 01, four transfer cylinders 02 are arranged to execute a four-color printing. The paper web 01 thus passes through in its from bottom to top

Transport direction T four printing locations at which one of the four inks of four-color printing is applied to the paper web 01 in each case. The two in the transport direction T of the web 01 both first, d. H. lower pressure points form in the four-high tower a lower pressure unit, whereas the two subsequent, d. H. upper pressure points form an upper pressure unit. Between the lower and the upper printing unit to compensate for a caused by the fan-out effect transverse strain .DELTA.01 of the printing substrate 01, an image web controller 03 with on each side of the paper web 01 z. B. four juxtaposed actuators 04 arranged. On a representation of cooperating with the respective transfer cylinders 02 form cylinders, as usual in offset printing, and other commonly belonging to a printing unit components and / or aggregates has been omitted for reasons of clarity. The transfer cylinder 02 transferred in their respective axial direction side by side several print images on the paper web 01, z. B. at least two to eight printed images. The web press is z. B. used in newspaper printing. In this case of application, the print images juxtaposed to the respective transfer cylinders 02 correspond in each case to one side of a newspaper.

Fig. 2 indicates in a simplified representation of how a width B01 of the paper web 01 passes through the, in the Fig. 1 illustrated four-tower in particular by a moisture absorption at the four successive pressure points preferably at the two in the transport direction T of the web 01 directed edges widened in each case by the amount of transverse strain Δ01, provided that no compensation of the fan-out effect takes place, wherein the transverse strain .DELTA.01 at both Edges of the paper web 01 by no means must be equal in terms of amount.

Fig. 3 shows the orbit controller 03 of the Fig. 1 in an assembly representation, wherein the term of the assembly in the sense of DIN 6789 taken definitions is used. Two at a distance A06 z. B. in the range between 50 mm and 150 mm, in particular between 80 mm to 100 mm, mutually parallel trusses 06, which in each case in the axial direction of the transfer cylinder 02 between the (not shown) frame walls of the printing machine can be arranged and between which the paper web 01 is feasible, each carrying a plurality, for. B. four juxtaposed actuators 04, each actuator 04 is formed in each case as a controllable module 04 with a force acting on the paper web 01 actuating means 07, wherein the actuating means 07 in turn is designed as a deflectable, freely rotatably mounted roller 07. In each module 04, an action brought about by the adjusting means 07 is arranged in the plane of the paper web 01-executing actuator 13, this actuator 13, in the illustrated example, causing the deflection of the respective roller 07 ( Fig. 5 ), wherein with the respective deflection of at least one of the rollers 07, the paper web 01 is deformed in its width B01 and thereby an occurring between different pressure points color register shift is corrected. Because the deflection of the rollers 07 takes place in each case in the plane of the paper web 01 for the purpose of employment of the rollers 07 to the paper web 01 or out of this plane for the purpose of parking the rollers 07 of the web 01, wherein both sides in the plane of the web 01 swiveled rollers 07 the paper web. 01 in its width B01 deform S-shaped. The actuator 13 sets a control command of a control unit 33 (FIG. Fig. 9 ) into mechanical work, DH in a executed by the respective roller 07 movement to. The actuator 13 is designed as an electromechanical drive 13. A further unclaimed design of the actuator 13 may be in the form of a valve 13 which influences a flow, in particular the pressure of an air flow directed onto the plane of the paper web 01, by its opening or closing controlled by the control unit 33. In the case of a pneumatic image path controller 03, the pressure set by the control unit 33 of the flow directed onto the plane of the paper web 01 corresponds to the actuating means 07 moved by the respective actuator 13 in the case of a mechanical image path controller 03. The actuators 13 are accordingly in each case the actuators in one of the control unit 33 influenced control chain or, if the control unit 33 with a setting of the actuating means 07th is returned in a controlled by the control unit 33 control loop.

For each adjusting means 07, an intensity of its engagement in the plane of the paper web 01 and thus a degree of deformation of the paper web 01 can be controlled and metered by a control command issued by the control unit 33 to the actuator 13; each roller 07 has, for the purpose of its deflection, a preferably continuously adjustable adjustment S07 z. B. in the range between 10 mm and 50 mm, in particular between 15 mm and 25 mm. The modules 04 are z. B. by means of a bracket 08 and a detachable connection, for. As a screw, attached to the respective cross member 06, preferably clamped, wherein the respective traverse 06 z. B. as a preferably hollow profile bar with a z. B. rectangular cross-section with an edge length of z. B. 20 mm to 50 mm, preferably 30 mm to 40 mm, is formed. The modules 04 are preferably arranged equidistantly at their respective traverse 06, z. B. each at a distance A04 of 200 mm to 400 mm, in particular 350 mm. Each traverse 06 has z. B. a clear width or length L06 in the range of 1700 mm to 2400 mm, in particular between 1,900 mm and 2,000 mm. The modules 04 are preferably arranged displaceably along their respective traverse 06 and can be free at their respective traverse 06, d. H. be positioned anywhere.

Fig. 4 shows in an enlargement of one of the modules 04 with an associated along the displacement S07 deflectable roller 07. The adjustment S07 each roller 07 of the orginal controller 03 ( Fig. 3 ) can be connected to a belonging to the printing press console z. B. from -25% to + 100% and be changed in this area, wherein at a setting of -25%, the respective roller 07 is pivoted from the plane of the paper web 01 maximum and therefore a retraction of the paper web 01 between the two spaced arranged trusses 06 is possible. At a setting of 0% there is a distance of z. B. 0.5 mm between the respective roller 07 and the paper web 01. The maximum penetration depth of each single roller 07 in the plane of the web 01 is reached at a setting of + 100%. This percentage setting and the actual setting of the adjustment path S07 can be assigned to one another linearly or non-linearly. Each roller 07 has a diameter D07 in the range of z. B. 50 mm to 100 mm, in particular 60 mm to 80 mm. The bracket 08 of the module 04 is z. B. connected to a mounting plate 09 of the module 04, wherein the mounting plate 09 and the bracket 08, the cross-section of the cross member 06 to which this module 04 is to attach form-fitting, so that the module 04 on the cross member 06 is rotationally fixed. The mounting plate 09 carries on its one side a housing 11, in which at least the drive 13 is preferably arranged dust and moisture protected for adjusting the belonging to this module 04 roller 07, and to its other side z. B. a lever 12 for receiving there the respective roller 07, which in the Fig. 5 is shown. A shaft 14 connected to the drive 13 penetrates the mounting plate 09. The roller 12 carrying the roller 07 is fixedly connected to this shaft 14. By a rotational movement of the drive 13 connected to the shaft 14 of the lever 12 and thus the freely rotatably mounted on a journal journal roller 07 is deflected. The displacement S07 of the roller 07 may be limited in their two deflection directions each by a mechanical stop, which protrudes in each case from the mounting plate 09 and against the z. B. the roller 07 supporting lever 12 abuts in an inadmissible rotational movement of the shaft 14.

The arranged in the housing 11 of the module 04 actuator 13 is in the preferred embodiment as a drive 13 for adjusting the belonging to this module 04 roller 07 is z. B. as an electrically driven motor 13, in particular as a stepper motor 13, preferably as a Klauenpolschrittmotor 13, z. B. formed as a 2-phase stepping motor 13, the winding z. B. is switched unipolar. A of such a drive 13, in particular stepper motor 13 torque exerted z. B. by means of a likewise arranged in the same housing 11 of the module 04 Transmission 16, in particular a planetary gear 16, stocky on the lever 12 deflecting shaft 14 given, with a reduction ratio of the transmission 16 z. B. in the range of 500: 1 to 100: 1, in particular 400: 1 to 300: 1 can lie. Thus, the motor 13, by means of a rotation of the shaft 14 driven by it, preferably adjusts the adjustment path S07 of the roller 07 of the relevant setting unit 04 via the gear 16 coupled to it. The maximum of the roller 07 to be executed adjustment S07 requires z. B. a rotation angle φ of the shaft 14 in the range of 30 ° to 60 °, in particular 40 ° to 45 ° ( Fig. 4 ), wherein the transmission 16, for example. a total of between 1,000 and 2,500 steps, in particular 1,800 to 2,000 steps. A provided in or on the housing 11 of the module 04, preferably connected to the driven shaft 14 potentiometer is used to detect the angular position of this shaft 14th

By means of a z. B. detachable line connection 17 ( Fig. 3 and 5 ), the respective actuator 13 for adjusting the belonging to this module 04 roller 07 z. B. at least supplied with electrical energy in connection with a constant voltage. By means of this preferably multi-pole line connection 17, the actuator 13 is also used by the electronic control unit 33 to adjust the roller 07 belonging to this module 04. Fig. 9 ), so that a bidirectional communication permitting line connection 17 is preferably also designed as a data interface 17, with which the actuator 13 of the respective module 04 is connected to a digital network 34 for data exchange. In the data interface 17 a the respective actuator 13 at least with respect to the control unit 33 identifying electronic address is impressed. Furthermore, preferably via this data interface 17, a measured value provided by the potentiometer with respect to the angular position of the shaft 14 to the z. B. the drive 13 controlling the control unit 33, whereby a closed loop is formed with respect to the control exercised by the control unit 33. A data flow directed from the potentiometer via the control unit 33 to the drive 13 is integrated in particular into an automatically running control loop. The belonging to the digital network 34 physical routing is preferably carried out initially in or along the traverse 06 carrying the module 04 and then on to the preferably outside the printing unit arranged control unit 33. The digital network 34 are several different, with the control unit 33 data exchanging units connected, but at least all actuators 13 of the image controller 03.

The control unit 33 may, for. B. be integrated in the belonging to the printing press control room. An exchange of data between arranged in the module 04 components, z. As the drive 13 and / or the potentiometer, and the control unit 33 preferably takes place via a line system 34, which is designed as the digital network 34, said line system 34 may be integrated into a network for controlling the printing press. In the preferred embodiment, the network 34, via which the control unit 33 exchanges data between it and at least the respective actuator 13 to be controlled of the image controller 03, a network for controlling arranged in the printing press units, for. As an inking and / or dampening, which are involved in a running in the printing press printing process.

Each of the rollers 07 of the in the Fig. 3 illustrated image controller 03 is from the control unit 33, z. B. from the press belonging to the control station, individually and independently of the other rollers 07 of this image controller 03 in their respective adjustment S07 adjustable. For this purpose, each belonging to a Bildbahnregler 03 module 04 is individually addressable from the control center, ie based on an individual, the respective module 04 assigned, unique address from the control room selectively controllable. This means that the respective actuator 13 of the actuating units 04 is assigned an electronic address identifying it in the digital network 34, by means of which a specific one of the plurality of actuators 13 connected to the digital network 34 can be selected, and the actuator 13 selected by the latter z. B. initiated displacement S07 of the movable Roller 07 each individually and independently of the other actuators 13 of the control unit 33 by via the digital network 34 exchanged data, at least one control command is adjustable. The digital network 34, via which the control unit 33 exchanges data between it and at least the respective motor 13 to be controlled of the image path controller 03 is, for. B. formed as an Ethernet based network 34. Fig. 9 FIG. 2 illustrates in a block diagram the control in a device comprising the already mentioned control unit 33 and the above-described multiple track units 04 having image path controller 03.

The control room has, as in the Fig. 9 indicated, at least via a display device 36, to which various program masks 18 are displayed, and via an operating unit 37, with which values can be manually entered or with which in at least one of the program masks 18 displayed values are selectable. Fig. 6 shows an example displayed on the control panel program mask 18, in the left lower area of a particular printing tower of the printing machine is shown schematically and based on at least one button 19 selectable. As in the upper left area of the Fig. 6 shown, can then be selected in the selected printing tower arranged between the lower and the upper pressure unit of this printing tower image path controller 03 based on at least one other button 21, in which case the displacement S07 each roller 07 z. B. by means of sliders 22 or by a numerical input in the individual rollers 07 associated input fields 23 can be adjusted. If all rollers 07 are to be adjusted in the same way, a numerical input can also be made in an input field 24 serving for overall adjustment. The input in the input fields 23; 24 concerns z. B. on the ranging from -25% to + 100% range S07 percentages, which z. B. can then be visualized by a corresponding positioning of the slider 22 in their respective adjustment and / or by a display of this numerical value.

Fig. 7 indicates alternatively Fig. 6 a further program mask 18, in which in respective input fields 23 for each of the roller 07 of a selected orbital controller 03, a numerical value, in particular a percentage, for the respective displacement S07 of the respective roller 07 can be entered. In an input field 24, a numerical input for a uniform Versfellung all belonging to this image path controller 03 rollers 07 can be entered. The example shown shows a compensation value of 15%.

The program masks 18 of the Fig. 7 and Fig. 6 is common that on the one hand an individual setting of several, preferably all belonging to a particular image controller 03 rollers 07 is provided, but on the other hand it is also possible to impose on these individual settings an input common compensation value. This compensation value, which applies to all rollers 07, alters all individual settings in the same way. For example, it adds 15% to all individual settings.

As is well known, the intensity of the fan-out effect depends inter alia on the production speed of the printing press, ie on the speed of its printing cylinder 02, in particular transfer cylinder 02 (FIG. Fig. 1 ). There is also a dependence of the intensity of the fan-out effect of properties of the printing substrate 01, z. B. of a grammage of the paper used. Fig. 8 shows an inventive, displayable on the display device 36 on the control panel program mask 18, which contains at least one graph 26 with a course of over the rotational speed of the printing cylinder 02 applied compensation curve 27, wherein the compensation curve 27 respectively those z. B. percentage compensation value indicates that all associated with a particular image controller 03 rollers 07 is stamped in association with the speed of the printing cylinder 02. In a memory of the control unit 33, a plurality of compensation curves 27 are preferably stored, wherein each of these compensation curves 27 is associated with a property of the printing material 01, or the grammage of the used paper. Each of these compensation curves 27 can be called up on the program mask 18 by a corresponding selection. In the in the Fig. 8 the example shown in the diagram 26 compensation curve 27 applies to a paper with the grammage of 45 g / m ² . The course of each compensation curve 27 can be determined by several support points 28 and actually set, the support points 28 the traversed by the printing press range of production speed from its standstill to its maximum speed z. B. divide evenly. The number of nodes 28 may be for each compensation curve 27 z. B. be based on a number input in an input field 31 freely definable. It can z. B. ten support stables 28 may be provided, the from standstill to the maximum speed of z. B. divide 45,000 cylinder revolutions per hour reaching range of production speed in nine equal speed intervals. The compensation value belonging to the respective values of the production speed is e.g. B. in a diagram 26 associated table 29 editable, ie there numerical values for the respective nodes 28 can be entered. From the numerical values entered in Table 29 for the respective interpolation points 28, the graph of the relevant compensation curve 27 is then generated by the control unit 33 in the diagram 26 by a line connecting the interpolation points 28. In a further input field 32, the course of the respective compensation curve 27 displayed in the diagram 26 can be changed, for. B. the course of the respective compensation curve 27 can be raised or lowered as a whole, wherein the value by which the course of the respective compensation curve 27 is to be changed, can be entered as an absolute value or as a relative value.

From the diagram in the 26th Fig. 8 illustrated course of one of the compensation curves 27 it can be seen that it is advantageous in a start-up area A of the printing machine, ie from its standstill z. B. up to about one-fifth or one-third of their maximum production speed, the respective compensation curve 27 to start with a comparatively large slope, to then in a subsequent run-up area B up to their maximum production speed steadily against a lower limit value of z. B. 30% z. B. drop non-linear or asymptotic. The setting of the adjustment path S07 of each roller 07 of a specific image path controller 03, which is dependent on the production speed of the printing press, is thus combined in a compensation curve 27, the compensation curve 27 increasing in the startup region A of the printing press with a gradient of greater magnitude than in the case of reversed signs in the curve ramp-up area B adjoining start-up area A falls again to its maximum production speed.

The set compensation curves 27 are in the memory of the control unit 33 in association with selected productions, z. To a paper type, and / or to selected printing towers, ie, to a print location, storable and may be invoked on program mask 18 from memory as a default. After entering or selecting a specific production on the program mask 18, the control unit 33 proposes for the respective printing locations, ie for the respective printing towers of the printing press, certain default settings for the adjustment path S07 of the respective rollers 07 of the image path controller 03 acting on the relevant printing location sets these default values automatically or after approval by the operator of the press. Based on the respective preset on the Kompensatiönskurven 27 presets of the adjustment S07 of each roller 07 of a particular image controller 03 in an ongoing production of the printing machine automatically z. B. be tracked by a managed by the control unit 33 control loop or by a new manual input to the control unit 33.

LIST OF REFERENCE NUMBERS

01

Substrate web, paper web

02

Printing cylinder, transfer cylinder

03

Pathway regulator

04

Actuator, module

05

-

06

traverse

07

Adjusting means, roller

08

hanger

09

mounting plate

10

-

11

casing

12

lever

13

Actuator, drive, valve, motor, stepper motor

14

wave

15

-

16

Transmission, planetary gear

17

Line connection, data interface

18

program mask

19

button

20

-

21

button

22

pusher

23

input box

24

input box

25

-

26

diagram

27

compensation curve

28

support point

29

table

30

-

31

input box

32

input box

33

control unit

34

Network, line system

35

-

36

display

37

operating unit

A

start-up range

B

Ramp area

A04

distance

A06

distance

B01

width

D07

diameter

L06

length

S07

adjustment

Δ01

Poisson

φ

angle of rotation

Claims (17)

1. A device having a control unit (33) and an image path controller (03) having several adjustment units (04) of a printing machine, wherein the printing machine is formed as a rotary printing machine with a printing unit cylinder (02) engaged on both sides on a printing substrate path (01), wherein the adjustment units (04) respectively act with an adjustment means (07) on a plane of the printing substrate path (01), wherein the adjustment means (07) is respectively formed as a deflectable, freely rotatable stored roller (07), wherein each adjustment unit (04) has an actuator (13), wherein the control unit (33) and the respective actuator (13) of these adjustment units (04) are each connected with a digital network (34), wherein respectively one address is associated with a respective actuator (13) of the adjustment units (04) in the digital network (34), wherein the control unit (33) exchanges data over the digital network (34) with an actuator (13) selected by its address, wherein the selected actuator (13) is respectively controlled individually by the control unit (33) from the data exchanged over the digital network (34), wherein the control unit (33) has available at least one display device (36) and one operating unit (37), various program masks (18) being displayable on the display device (36), characterized in that a program mask (18) is provided, which contains at least one diagram (26) of a course of a compensation curve (27) applied over a speed of the printing unit cylinder (02), wherein the compensation curve (27) respectively gives that compensation value, which, associated with the speed of the printing unit cylinders (02), is applied to all rollers (07) belonging to a certain image path controller (03), wherein several compensation curves (27) are stored in a memory of the control unit (33), each of these compensation curves (27) being associated with a grammage of the printing substrate path (01), wherein each of these compensation curves (27) may be called in by a corresponding selection on the program mask (18).
2. The device according to claim 1, characterized in that the control unit (33) is integrated into a control center belonging to the printing machine.
3. The device according to claim 1, characterized in that the digital network (34), over which the control unit (33) exchanges data between it and the respective actuator (13), is a network for controlling units positioned in the printing machine, which are involved in an executing printing process in the printing machine.
4. The device according to claim 1, characterized in that the control unit (33) exchanges data between it and one potentiometer of one of the respective actuator (13) over the digital network (34).
5. The device according to at least one of claims 1 to 4, characterized in that the actuator (13) is formed as an electromechanical drive (13).
6. The device according to claim 5, characterized in that the drive (13) is formed as a motor (13), wherein one shaft (14) driven by the motor (13) is coupled with a transmission (16).
7. The device according to claim 6, characterized in that the adjustment track (S07) of the roller (07) may be adjusted by one command issued by the control unit (33) on the motor (13).
8. The device according to claim 6, characterized in that the control unit (33) and the motor (13) are each connected to a same digital network (34), wherein an address in the digital network (34) is associated with the motor (13), wherein the control unit (33) exchanges data over the digital network (34) with the motor (13) selected by means of its address.
9. The device according to claim 6, characterized in that the transmission (16) and the motor (13) are positioned in a same casing (11).
10. The device according to claim 6, characterized in that the transmission (16) is formed as a planetary transmission (16).
11. The device according to claim 6, characterized in that the transmission (16) has a reduction gear ratio in the range from 500:1 to 100:1.
12. The device according to claim 6, characterized in that the shaft (14) driven by the motor (13) for achieving the maximum adjustment track (S07) of the roller (07) completes an angle of rotation (ϕ) in the range from 30° to 60°.
13. The device according to claim 1, characterized in that the adjustment track (S07) of the roller (07) is in the range between 10 mm and 50 mm.
14. The device according to claim 5, characterized in that the drive (13) is formed as a step motor (13).
15. The device according to claim 4, characterized in that the potentiometer acquires a rotary angle adjustment of the shaft (14) driven by the drive (13).
16. The device according to claim 15, characterized in that the potentiometer reports a measurement value concerning the rotary angle adjustment of the shaft (14) to the control unit (33) controlling the drive (13).
17. The device according to claim 16, characterized in that a data flow directed from the potentiometer over the control unit (33) to the drive (13) is integrated into an automatically operating control loop.

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