EP0708046A1 - Register and feeding device - Google Patents

Abstract

The register alignment device uses front edge stops (A1,A2) and side edge stops (A3,A4), or side sliders, respectively cooperating with the front and side edges of the sheet (5). Position sensors (S1,S2,S3) are used to detect printed markings (P1,P2,P3) on the sheet, with further detectors (D1,D2) associated with the front edge stops for detecting the front edge of the sheet. The front edge stops are adjusted via setting motors (M1,M2) until the front markings are detected by the corresp. sensors (S1,S2), with similar subsequent adjustment of the side stops, until the remaining sensors (S3) detect the side alignment markings.

Description

The invention relates to a register feed device for sheet-fed printing and embossing machines with front edge stops and side stop or side shift. If a sheet with a first printed image from a previous printing process is to be provided with a second printed image or embossed subject in a later subsequent printing or embossing process, the position of the second image for each individual sheet must match the first image exactly with this . In practice, however, various register errors can occur, as a result of which the second printed image is shifted from the first. This means that the first print image, the position of which is defined by print marks, is not exactly aligned with respect to the sheet edges and that, above all, not all sheets have the same register errors, but that these errors can vary from sheet to sheet.

These register errors arise, for example, when cutting the sheets from a web-fed printing press or during a first printing process in a sheet-fed printing press, if there are differences in the image distance from the sheet edges as a result of operating errors, inaccurate settings or operational disturbances. Especially in the case of higher quality requirements, for example in stamping foil printing, hologram transfer, blind embossing, cold or hot punching and creasing or applying a second print image, these register errors occur a very big problem. Above all, sloping leading edges with an angular deviation in relation to the print mark positions could not be corrected correctly.
So far, the registers were set as optimally as possible manually at the beginning of a printing or embossing process and were no longer changed during the printing process. In the best case, with very slow, continuously occurring deviations, readjustment by hand to a very limited extent. Correcting single sheets in this way is not possible in this previous way.

It is therefore an object of the present invention to create a register device which, for each sheet, individually, optimally and automatically corrects all register errors and in particular inclined leading edges with angular errors and thereby enables perfectly matching printed and embossed images of consistently high quality. In addition, this should be done with a relatively simple and safe working, practice-oriented procedure.

This object is achieved by an inventive register pull-in device according to claim 1.
The arrival of the sheet is determined at the two front edge stops with position detectors and then both stops are moved in the direction of travel X until the front print marks have reached their desired positions and the front edge is accordingly correctly aligned. The sheet is then moved in the transverse direction by the side stop or sideshift until the side print mark has reached its desired position, so that all the print marks are now in the desired position, ie the leading edge and side edge are aligned correctly. Then the sheet is gripped with the gripper bar and used for further processing drawn into the printing or embossing machine. The embossed subject then exactly matches the first printed image, so that the highest quality can be achieved for each individual sheet.

Fig. 1

eine Lageanordnung von Druckmarken, Sensoren und Anschlägen für einen fehlerfreien Referenzbogen

Fig. 2

einen fehlerhaften Bogen und die notwendigen Korrekturverschiebungen um diesen in Sollposition zu bringen

Fig. 3

schematisch eine erfindungsgemässe Registereinzugsvorrichtung mit Positionssensoren, Lagedetektoren und Stellgliedern

Fig. 4

ein Schaltschema mit einer Systemsteuerung

Fig. 5a,b

den zeitlichen Ablauf der Verschiebungen und der Verschiebungsgeschwindigkeiten beim Ausrichten eines Bogens in die Sollposition

Fig. 6a,b

Ausführungsbeispiele einer Vorrichtung in zwei Ansichten

Fig. 7

Beispiele einer Seitenverschiebung mit ziehendem und mit stossendem Anschlag

Fig. 8

eine Druck-Prägemaschine mit einer Registereinzugsvorrichtung.

The dependent claims relate to advantageous developments of the invention, which work in a particularly simple, precise and practical manner. In the following the invention is further explained with the aid of examples and figures, it shows:

Fig. 1

a positional arrangement of print marks, sensors and stops for an error-free reference sheet

Fig. 2

a faulty sheet and the necessary correction shifts to bring it into the desired position

Fig. 3

schematically an inventive register retraction device with position sensors, position detectors and actuators

Fig. 4

a circuit diagram with a control panel

5a, b

the chronological sequence of the displacements and the displacement speeds when aligning a sheet in the target position

6a, b

Embodiments of a device in two views

Fig. 7

Examples of a side shift with pulling and pushing stops

Fig. 8

a pressure embossing machine with a register feed device.

D1, D2

Vorderkanten-Lage-Detektoren

A1, A2

Vorderanschläge

A3

Seitenanschlag oder Seitenschieber

P1, P2

Druckmarken bez. Bild-Vorderrand

P3

Druckmarke bez. Bild-Seitenrand

P1S, P2S, P3S

fehlerfreie SOLL Positionen, korrigierte Stellung für den Weitertransport nach X4, X5, Y6 - Verschiebung

S1, S2, S3

Sensoren zum Lesen von P1, P2, P3

M1, M2, M3

den Anschlägen A1, A2, A3 zugeordnete Stellglieder

X, -X

Laufrichtung, Gegenlaufrichtung

Y, -Y

Querrichtung

X0, Y0

Grundverschiebungen

X1, X2, Y3

Korrekturwerte an den Anschlägen A1, A2, A3 (= Registerfehler, Bild - Kantenfehler)

YL

Einlauf-Lageschwankung bzw -korrektur

X4 = X0 + X1

Gesamtverschiebungen der Anschläge

X5 = X0 + X2

Y6 = Y0 + Y3

Y6 = Y0' + Y3 + YL

(inkl. Einlauf-Lagekorrektur YL)

W

Winkelfehler einer schrägen Vorderkante

Figur 1 zeigt einen fehlerfreien Referenzbogen 5 mit Vorderkante 51, linker und rechter Seitenkante 52, 53 und Hinterkante 54 sowie mit einem Druckbild 6. Die Lage des Druckbilds wird definiert durch zwei vordere Druckmarken P1, P2 für den vorderen Bildrand und eine seitliche Druckmarke P3 für den Seitenrand des Bildes. Die Bogenlaufrichtung ist mit X, die Gegenrichtung mit -X, die Seitenrichtung nach links mit Y, und nach rechts mit -Y angegeben. Den Druckmarken P1, P2, P3 entsprechende Positionssensoren S1, S2, S3 sind so über dem Bogen 5 angebracht, d.h. auf die Druckmarken eingestellt und an einer festen Halterung 12 (Fig.6a) fixiert, dass der fehlerfreie Referenzbogen keine Korrekturverschiebungen der Anschläge A1, A2, A3 erfordert. Er wird dann nur mit einer Grundverschiebung um X0 (der Anschläge A1 und A2 in X-Richtung) sowie um Y0 (der Anschläge A3 in Y-Richtung) in seine SOLL-Position P1S,P2S,P3S gebracht zum anschliessenden Weitertransport in die Druck- oder Prägemaschine 1 (Fig. 8).The following definitions are used in connection with the figures:

D1, D2

Leading edge position detectors

A1, A2

Front stops

A3

Side stop or sideshift

P1, P2

Print marks Image front margin

P3

Print mark Image margin

P1S, P2S, P3S

error-free TARGET positions, corrected position for further transport to X4, X5, Y6 - shift

S1, S2, S3

Sensors for reading P1, P2, P3

M1, M2, M3

actuators assigned to the stops A1, A2, A3

X, -X

Direction of rotation, opposite direction

Y, -Y

Cross direction

X0, Y0

Basic shifts

X1, X2, Y3

Correction values at the stops A1, A2, A3 (= register errors, image - edge errors)

YL

Inlet position fluctuation or correction

X4 = X0 + X1

Total displacements of the stops

X5 = X0 + X2

Y6 = Y0 + Y3

Y6 = Y0 '+ Y3 + YL

(incl.inlet position correction YL)

W

Angular error of an oblique leading edge

FIG. 1 shows a flawless reference sheet 5 with front edge 51, left and right side edge 52, 53 and rear edge 54 and with a print image 6. The position of the print image is defined by two front print marks P1, P2 for the front picture edge and a lateral print mark P3 for the margin of the picture. The sheet running direction is indicated with X, the opposite direction with -X, the side direction to the left with Y, and to the right with -Y. Position sensors S1, S2, S3 corresponding to the printing marks P1, P2, P3 are attached above the sheet 5, ie adjusted to the printing marks and fixed to a fixed holder 12 (FIG. A2, A3 required. It is then only with a basic shift by X0 (the stops A1 and A2 in the X direction) and by Y0 (the stops A3 in the Y direction) brought into its TARGET position P1S, P2S, P3S for subsequent transport to the printing or embossing machine 1 (FIG. 8).

d.h. um diese Korrekturwerte müssen die Anschläge verschoben werden, damit das Druckbild 5' dem des fehlerlosen Referenzbogens 5 entspricht. Zusätzlich zu diesen Korrekturwerten werden die Vorderanschläge A1, A2 um eine Grundverschiebung X0 von z.B. 1 mm und der Seitenanschlag oder Seitenschieber A3 um eine Grundverschiebung Y0 von z.B. 4 mm verschoben (wenn die Einlauf-Lageschwankung YL = 0 ist). Die Gesamtverschiebungen der Anschläge A1, A2, A3 betragen dann: $$\begin{array}{c}\begin{array}{c}\text{X4 = X0 + X1 = 1.2 mm}\\ \text{X5 = X0 + X2 = 0.4 mm}\\ \text{Y6 = Y0 + Y3 = 4.4 mm}\end{array}\end{array}$$

Y6 kompensiert aber zusätzlich auch die auftretenden Einlauf-Lageschwankungen YL.In contrast, as illustrated with reference to FIG. 2, the position of an oblique front edge 51 'with an angular error W and the side edge 52' of a defective sheet 5 'is corrected by the stops A1, A2, A3 so that the sensors S1, S2, S3 again correspond to its print marks P1, P2, P3 and after a possible basic shift by X0, Y0 the error-free target position P1S, P2S, P3S is reached, so that in a subsequent second printing or embossing process the second print image or embossed subject exactly with the present one Print image matches. As an example, the incorrectly dash-dotted sheet 5 'shown here has the following image edge errors: $$\text{X1 = +0.2 mm X2 = - 0.6 mm Y3 = + 0.4 mm}$$

ie the stops have to be shifted by these correction values so that the printed image 5 'corresponds to that of the flawless reference sheet 5. In addition to these correction values, the front stops A1, A2 are shifted by a basic shift X0 of, for example, 1 mm and the side stop or sideshift A3 by a basic shift Y0 of, for example, 4 mm (if the inlet position fluctuation YL = 0). The total displacements of the stops A1, A2, A3 are then: $$\begin{array}{c}\begin{array}{c}\text{X4 = X0 + X1 = 1.2 mm}\\ \text{X5 = X0 + X2 = 0.4 mm}\\ \text{Y6 = Y0 + Y3 = 4.4 mm}\end{array}\end{array}$$

Y6 also compensates for the running-in position fluctuations YL.

.
Diese Verstellbereiche, d.h. die maximal möglichen Verschiebungen X4, X5, Y6 betragen vorzugweise:
für die Vorderanschläge $\text{A1, A2 : X4, X5 = 2 bis 6 mm}$

für den Seitenanschlag oder Seitenschieber $\text{A3 : Y6 = 5 bis 12 mm}$

und für die Register-Korrekturbereiche X1, X2, Y3 : 1 bis 3 mm.As an example for the sheet edge 52 '' shown: YL = 1 mm with unchanged image edge error Y3 of 0.4 mm.
In order to return to the same TARGET position P3S, 52 '' must then be shifted by this amount YL = 1 mm less, ie only by: $\text{Y6 '= Y6 - YL = 3.4 mm}$

.
These adjustment ranges, ie the maximum possible displacements X4, X5, Y6 are preferably:
for the front stops $\text{A1, A2: X4, X5 = 2 to 6 mm}$

for the side stop or sideshift $\text{A3: Y6 = 5 to 12 mm}$

and for register correction areas X1, X2, Y3: 1 to 3 mm.

In previous register feed devices, fluctuations in the running position are eliminated by pulling the sheet edges 52 in the Y direction towards a fixed side stop, corresponding to a basic displacement Y0 for the reference sheet. In the previous procedure, there was no basic shift X0 on the fixed front stops.

und am Anschlag A2 die Verschiebung $\text{X5 = X0 + X2}$

erreicht ist und damit die Sollpositionen P1S und P2S zum Zeitpunkt T3 eingenommen sind. Durch die Zeitpunkte TS1 und TS2 werden somit die Korrekturwerte X1 und X2 bestimmt. Zum Abbremsen der Anschläge und Stellglieder M1, M2 kann dabei eine einberechnete Bremsrampe 40 von T2 bis T3 gefahren werden. Anschliessend beginnt im Zeitpunkt T4 die Seitenverschiebung des Anschlags bzw. Schiebers A3, z.B. durch Ziehen des Bogens in Y-Richtung bis der Positionssensor S3 die zugeordnete Seiten-Druckmarke P3 erfasst, womit der Seitenkorrekturwert Y3 bestimmt ist. Der Anschlag A3 wird, wiederum berechnet, weiterverschoben bis zum Zeitpunkt T5, so dass die Seitenverschiebung $\text{Y6 = Y0 + Y3}$

erreicht und damit auch die Soll-Position P3S eingenommen ist. Anschliessend im Zeitpunkt T6 ergreift der Greiferbalken 8 (Fig. 6a) den nun fehlerfrei ausgerichteten Bogen in der Soll-Position P1S, P2S, P3S.
Die Verschiebung der Vorderanschläge kann dabei beginnen erst nachdem die Vorderkante 51 an beiden Anschlägen A1, A2 eingetroffen ist
oder es können bei nicht gleichzeitigem Eintreffen von 51 an A1 und A2 deren Verschiebungen auch einzeln, gestaffelt beginnen sobald die Vorderkante 51 am betreffenden Anschlag eingetroffen ist.
Während der Seitenverschiebung wird der Bogen 5 durch geeignete Förderelemente 15 (in Fig. 6) immer noch in Kontakt mit den Anschlägen A1, A2 gehalten.FIG. 3 schematically illustrates a register pulling-in and correction device according to the invention, and FIG. 5 shows the associated chronological sequence in this new method, the speed profile V (T) (FIG. 5a) and the path X (T) (FIG. 5b) of the sheet edge covered there 51 and the stop A1 are shown. The sheet runs in at a constant speed of, for example, 0.3 m / s in direction X until it hits stop A1 at time T1. The arrival of the sheet edge at the stops A1, A2 is determined by position detectors D1 and D2, preferably attached to them. The stops A1, A2 are then moved until the position sensors S1, S2 detect the assigned front print marks P1, P2 at the time TS1 or TS2. With corrections X1 and X2 corrected the angular error W of the defective oblique edge 51 '. In the target position, W = 0. Then the stops are moved by so much until the stop A1 $\text{X4 = X0 + X1}$

and the shift at stop A2 $\text{X5 = X0 + X2}$

is reached and thus the target positions P1S and P2S have been taken at time T3. The correction values X1 and X2 are thus determined by the times TS1 and TS2. In order to brake the stops and actuators M1, M2, a calculated braking ramp 40 can be moved from T2 to T3. The side shift of the stop or slide A3 then begins at time T4, for example by pulling the sheet in the Y direction, until the position sensor S3 detects the associated page print mark P3, which determines the page correction value Y3. The stop A3 is, again calculated, postponed until time T5, so that the side shift $\text{Y6 = Y0 + Y3}$

reached and thus the target position P3S is also assumed. Then at time T6, the gripper bar 8 (FIG. 6a) grips the sheet, which is now correctly aligned, in the desired position P1S, P2S, P3S.
The displacement of the front stops can only begin after the front edge 51 has arrived at both stops A1, A2
or, if 51 and A1 and A2 do not arrive at the same time, their displacements can also start individually, staggered as soon as the front edge 51 has reached the stop in question.
During the lateral shift, the sheet 5 is still held in contact with the stops A1, A2 by suitable conveying elements 15 (in FIG. 6).

In FIG. 3 it is illustrated with the alternative front mark P1a that any suitable positions on the print image can also be selected as print marks, the assigned sensor (here S1a for mark P1a) on the holder 12 (FIG. 6) being set accordingly.

As a further possible variant, a side stop A4 is drawn in on the right in FIG. 3, which would push the sheet in the Y direction. In contrast, the left stop A3 pulls, then e.g. in the form of a clamping slide, the bow in the Y direction. The stops A1, A2, A3 and A4 are controlled by actuators M1, M2, M3 and M4 and can be moved with an accuracy of at least 0.1 mm. Suitable actuators are e.g. ac servo motors with spindles or rack, as well as linear motors. Cam disks 24, 25 are also suitable, as shown in FIGS. 6, 7, in which the maximum linear displacements in the X and Y directions are given and limited by the curve stroke.

Figure 4 shows a circuit diagram of the register device according to the invention with a system control 11 with a computer, which with the machine control 7 of a downstream printing or embossing machine 1 (in Fig. 8) and with the position sensors S1, S2, S3, the position detectors D1, D2 and the actuators M1, M2, M3 is connected. An operating and display unit 9 allows e.g. also the ongoing control of the edge errors X1, X2, Y3 as well as the acquisition and statistical evaluation of operating data.

FIG. 6a shows a side view and FIG. 6b shows a top view of a register pulling device, which accepts sheets from a feeder 3, aligns them correctly and then transfers them to the gripper bar 8 in a correct target position for further processing in a printing or embossing machine 1. The sheet 5 is conveyed by a belt as a transport device 14 to the front stops A1, A2, where detectors D1, D2 determine the arrival of the sheet. These detectors can be equipped, for example, with precisely adjusted photo cells, generally with optoelectronic or also with electromechanical elements. The position sensors S1, S2, S3 are here on one hinged frame 13 attached, on which they are adjustable and fixed in the X and Y directions exactly on the assigned print marks P1, P2, P3 of a flawless reference sheet and fixed. The front stops A1, A2 with the detectors D1, D2 are here mounted on a bar 20, the ends 21, 22 of which can be displaced in the X direction by the actuators M1, M2. The actuators here consist of servomotors 23 and flat cam slides 24. The displacements become corresponding to the geometric arrangement, ie the distances on the Y axis from printing marks P1, P2 to the adjacent end 21 or 22 and the distance between the ends 21, 22 the actuators are converted by a system controller 11 (FIG. 4) to the correction values X1, X2 at the stops. As conveying elements 15, which hold the sheet at the stops during the displacements, brushes 16 are used on the rear trailing edge 54 in FIG. 6a and suction wheels 18 in front of the stops in FIG. 6b. The conveying force is adjusted according to the sheet thickness in such a way that the sheet rests securely on the stops and is not compressed in the process.
The stops A1, A2 can additionally be mechanically adjustable and fixable on the beam 20 in the X direction.

FIG. 7 shows a side shift design in which the side stop A3 can be designed either as a slider 19 for pulling the sheet in the Y direction on the left sheet edge 52 or as a "real" stop 28 for pushing on the right sheet edge 53. A servo motor 23 serves as the actuator and drives cylinder cam disks 25 which can be displaced thereon via a spline shaft 26. On the slide 19, the sheet is held in place by a holding element 32, e.g. pressed by means of a pneumatically movable plunger 17. This holding element 32 is also controlled and actuated by the system controller 11.

FIG. 8 shows a printing and embossing machine 1 with a feeder 3, a register station 10 according to the invention, a press 2 and a delivery arm 4.

A gripper bar 8 grips the sheet 5 in a corrected correct target position and feeds it to the press 2. A panel 9 also contains displays and controls for the register retraction and correction device 10.

The register insertion and correction device according to the invention for sheet-printing and embossing machines with two front edge stops and side stop or side shift has position sensors S1, S2, S3 for detecting print marks P1, P2, P3 of the sheet (5) and two assigned to the front stops A1, A2 Detectors D1, D2 for detecting the front edge of the sheet (51). The front stops A1, A2 can be adjusted by actuators M1, M2 until the front printing marks P1, P2 of the sheet are detected by the corresponding sensors S1, S2. Above all, oblique leading edges with angular errors W are corrected perfectly. An actuator M3 then adjusts the side stop or side opener A3 until the side print mark P3 is detected by the assigned position sensor S3. A system controller (11) controls this register correction with the position sensors S1, S2, S3, the detectors D1, D2 and the actuators M1, M2, M3.
This results in a simple, reliable automatic register correction for each individual sheet and thus consistently the highest print quality.

Label list

1

Printing and embossing machine

2nd

Press

3rd

Investors

4th

boom

5

bow

6

Printed image

7

Machine control

8th

Gripper bar

9

Operating and display panel

10th

Feeder tab

11

Control panel

12th

bracket

13

hinged frame

14

Sheet transport device

15

Conveyor element

16

brush

17th

Pestle

18th

Suction wheel

19th

Slider

20th

bar

21.22

Ends of 20

23

Servo motor

24th

Cam

25th

Cylinder cam

26

Spline

28

Side abutment

32

Holding element

40

Braking ramp

51

Leading edge

51 '

sloping, faulty front edge

52

left side edge

53

right side edge

54

Trailing edge

D1, D2

Leading edge position detectors

A1, A2

Front stops

A3

Side stop or sideshift

P1, P2

Print marks Image front margin

P3

Print mark Image margin

P1S, P2S, P3S

error-free TARGET positions, corrected position for further transport to X4, X5, Y6 - shift

S1, S2, S3

Sensors for reading P1, P2, P3

M1, M2, M3

actuators assigned to the stops A1, A2, A3

X, -X

Direction of rotation, opposite direction

Y, -Y

Cross direction

X0, Y0

Basic shifts

X1, X2, Y3

Correction values at the stops A1, A2, A3 (= register errors, image - edge errors)

YL

Inlet position fluctuation or correction

X4 = X0 + X1

Total displacements of the stops

X5 = X0 + X2

Y6 = Y0 + Y3

Y6 = Y0 '+ Y3 + YL

(incl.inlet position correction YL)

W

Angular error of an oblique leading edge

Claims (20)

Register feed device for sheets - printing and embossing machines with leading edge stops and side stops or side shifters, characterized in that position sensors S1, S2, S3 for detecting print marks over an incoming sheet (5) with a printed image (6) on a holder (12) P1, P2, P3 of the sheet are attached, wherein two sensors S1, S2 locate the assigned front print marks P1, P2, which define the front edge of the print image, and wherein a sensor S3 locates the assigned print mark P3, which defines the side edge of the print image , and with two front stops A1, A2 and two detectors D1, D2 assigned to them, which detect the arrival of the leading edge of the sheet (51), and the front stops A1, A2 are controllable by actuators M1, M2 and adjustable until the front ones Print marks P1, P2 of the sheet are detected by the corresponding sensors S1, S2 and connected with an actuator M3 Adjust the side stop or sideshift A3 until the side print mark P3 is detected by the assigned position sensor S3 and with a system controller (11) which is used with the position sensors S1, S2, S3, the detectors D1, D2 and the actuators M1, M2 , M3 is connected. Device according to claim 1, characterized in that the position sensors S1, S2, S3 are slidably and adjustably mounted on a hinged frame (13) above the arch (5). Apparatus according to claim 1, characterized in that the front stops A1, A2 are mounted on a bar (20), the two ends (21, 22) of which are adjustable by the actuators M1, M2. Device according to claim 1, characterized in that the actuators M1, M2, M3 have servomotors (23). Apparatus according to claim 1, characterized in that the actuators have cams (24). Device according to claim 1, characterized in that the position sensors S1, S2, S3 and / or the detectors D1, D2 have photocells. Device according to claim 1, characterized in that the detectors D1, D2 are attached to the front stops A1, A2. Apparatus according to claim 1, characterized in that the side stop A3 by a servo motor (23) over a transverse Spline shaft (26) and a cylinder cam disc (25) which can be moved and fixed thereon are actuated. Device according to claim 1, characterized in that the stops A1, A2, A3 are assigned conveyor elements (15) which hold the sheet during the displacements (X4, X5, Y6) with a force appropriate to the sheet thickness on the stops. Apparatus according to claim 9, characterized in that brushes (16), rollers (17), suction wheels (18) or suction belts are used as conveying elements (15). Apparatus according to claim 1, characterized in that the sheet resting on the front stops A1, A2 can be displaced in the running direction X into the desired positions P1S, P2S. Device according to claim 1, characterized in that the front stops A1, A2 push the sheet in the opposite direction -X into the desired positions P1S, P2S. Device according to claim 1, characterized in that the side stop or slide A3 brings the sheet into the desired position P3S by pulling. Apparatus according to claim 1, characterized in that the side stop A3 brings the sheet into the desired position P3S by pushing. Device according to claim 1, characterized in that the actuators move the stops A1, A2, A3 with a predetermined calculated braking ramp (40) into the register error-corrected target positions P1S, P2S, P3S defined by the print marks. Device according to claim 1, characterized in that the actuators M1, M2, M3 move the stops A1, A2, A3 by a basic shift (X0, Y0) in addition to the register correction shifts (X1, X2, Y3). Apparatus according to claim 16, characterized in that the adjustment ranges (X4, X5) of the front stops are 2-6 mm. Apparatus according to claim 16, characterized in that the adjustment range (Y6) of the side stop is 5 - 12 mm. Apparatus according to claim 16, characterized in that the correction areas (X1, X2, Y3) are 1-3 mm. Sheet-fed printing and embossing machine with a register feed device (10) according to one of the preceding claims and with an associated operating and display panel (9).

Images