EP1184177B1 - Rotary printing machine - Google Patents

Rotary printing machine Download PDF

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Publication number
EP1184177B1
EP1184177B1 EP01118944A EP01118944A EP1184177B1 EP 1184177 B1 EP1184177 B1 EP 1184177B1 EP 01118944 A EP01118944 A EP 01118944A EP 01118944 A EP01118944 A EP 01118944A EP 1184177 B1 EP1184177 B1 EP 1184177B1
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EP
European Patent Office
Prior art keywords
function unit
printing machine
rotary printing
printing
machine according
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EP01118944A
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German (de)
French (fr)
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EP1184177A3 (en
EP1184177A2 (en
Inventor
Peer Dilling
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Manroland AG
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MAN Roland Druckmaschinen AG
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Publication of EP1184177A2 publication Critical patent/EP1184177A2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/24Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34Cylinder lifting or adjusting devices
    • B41F13/38Cylinder lifting or adjusting devices electrically or magnetically operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/24Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26Arrangement of cylinder bearings
    • B41F13/30Bearings mounted on sliding supports

Definitions

  • the invention relates to a rotary printing press according to the preamble of claim 1.
  • Such a device is already known for a gravure printing machine, namely from the EP 0 934 827 A2 in which the paths of a counterpressure roller and a impression roller are measured. Separately, the position of an inking unit is measurable.
  • the positioning device according to the invention advantageously allows an exact positioning of the associated functional unit in any desired position, wherein an automatic adaptation to changing boundary conditions can take place. This applies in an advantageous manner for changing cylinder diameter, which facilitates a format change.
  • the function unit is associated with sensors for detecting the path traveled in each case as well as the impact on the associated printing unit cylinder whose output signals can be fed to the control unit.
  • the combination of distance and point-related control results in a particularly high accuracy when approaching a desired operating position.
  • control unit can be programmed so that the functional unit can be moved to a desired operating position starting from the position determined upon impact with the associated printing unit cylinder when the drive device is activated.
  • the position at which the functional unit impinges on the associated printing cylinder here forms a zero point or reference point, which seeks the function unit in each case itself, so that regardless of the location of this reference point is always an exact operating position is reachable.
  • This can be a pressure or gap setting.
  • the sensor arrangement can expediently be assigned to an incremental arrangement for determining the distance covered. This automatically results in digital values that are easy to process in terms of data.
  • a further advantageous embodiment of the higher-level measures may consist in that the sensor arrangement for determining the impact of the functional unit on the associated printing cylinder as a strainable by the contact pressure between the functional unit and printing cylinder part of the drive means associated strain detector be formed.
  • the setting of the functional unit to gap with respect to the associated printing cylinder takes place on the other hand functionally path-dependent.
  • control unit which is expediently designed as a programmable computer, may have a communication connection for a remote programming and / or monitoring device. This advantageously makes it possible to remedy misadjustments using modern communication means, resulting in an excellent maintenance and service friendliness.
  • the basic structure and the operation of rotary printing presses are known per se and therefore need no further explanation in the present context.
  • the Figure 1 underlying printing unit consists of a machine frame 1, on which several in a conventional manner cooperating, here a double printing unit forming printing cylinder 2 are mounted. These are various, necessary for the operation of the printing press facilities, such as inking, dampening, washing facilities, imaging devices, fixing, extinguishing equipment, assigned. These devices each form an insertable into the printing unit function unit 3, which is completely pre-assembled outside the machine and in itself adjustable.
  • At least a part of the functional units 3 is received in each case with the frame-side ends mounted on the side walls of the machine frame 1 guide rails 4, which form a linear guide device. These functional units 3 are accordingly adjustable relative to the respectively associated printing cylinder 2 in the linear direction.
  • Each of these linearly adjustable functional units 3 is provided with a drive device 5 shown in detail in FIG.
  • This comprises a fixed to the machine frame 1, electric drive motor 6, which drives via a countershaft 7 mounted on the machine frame 1 end shields 8 threaded spindle 9, which is engageable with a mounted on the associated functional unit 3 threaded nut 10.
  • This may be a half-open threaded nut, so that a simple decoupling between the functional unit 3 and the frame-side drive device 5 is possible, which particularly simplifies the insertion or removal of the functional unit 3.
  • the drive motor 6, which may be a DC motor, can be controlled by means of a positioning device 11 assigned to the functional unit 3 and also shown in FIG.
  • a control unit 12 embodied as a programmable computer, in which the desired positions which the functional unit 3 is to be approached are entered in the form of electronic data and corresponding measured values are supplied to the respective current position of the functional unit 3 in the form of suitable signals.
  • the control unit 12 determines from the position-dependent signals supplied to it control commands for the drive motor 6, which are transmitted via a signal line 13. For inputting the values of the positions to be approached, an input device 14 is provided, which is connected to the control device 12 via a signal line 15. The control unit 12 further has an input for a signal indicated by a signal line 16 connection with the machine control device, which gives the use commands. In addition, in the example shown, the control unit 12 has a so-called remote connection to which a signal line 17 is assigned, via which communication with the control unit 12 and, accordingly, remote programming and / or remote monitoring is possible.
  • the measuring elements for determining the mentioned, position-dependent measured values consist of a displacement measuring device 18, which measures the distance traveled by the functional unit 3 in each case, and a sensing device 19 for scanning the abovementioned zero point, to which the displacement measuring device 18 can refer.
  • the displacement measuring device 18 includes an incremental element 20, to which a sensor 21 is assigned, which is arranged so that a relative movement between the incremental element 20 and the sensor 21 results.
  • the output of the sensor 21 is connected via a signal line 22 to an associated input of the control unit 12.
  • the sensing device 19 includes a second sensor 23, the signal upon impact of the functional unit 3 on the associated printing cylinder 2 generated, which is supplied via a signal line 24 to an associated input of the control unit 12.
  • the zero point that scans the inventive positioning to accomplish a self-adjustment automatically defined as the position at which the functional unit 3 runs with its the printing cylinder 2 associated working member on the associated printing cylinder 2 and touches them.
  • the second sensor 23 is accordingly designed so that a signal is emitted when the associated functional unit 3 runs onto the associated printing cylinder 2.
  • the second sensor 23 is formed as a strain gauge, which is attached to one of the threaded spindle 9 associated bearing plate 8. About this runs the power flow for deriving a running when the functional unit 3 on the associated printing cylinder 2 of this exerted reaction force on the machine frame 1.
  • the bearing plate 8 is claimed to bending, which increases with increasing contact pressure and vice versa.
  • the strain gauge forming the second sensor 23 thus provides a signal analogous to the contact pressure.
  • the beginning of this signal corresponds practically to the first Berühung and accordingly the above zero point.
  • the further course of this signal correlates with the contact pressure.
  • the signal delivered by the second sensor 23 therefore advantageously contains a double statement, namely an indication of the contact point which can be used as the zero point, as well as an indication of the contact pressure, the exact observance of which is desirable in many cases.
  • the control unit 12 is here programmed so that the functional unit 3 with activated drive device 5, starting from the self-seeking in the manner outlined above zero point is movable into a desired operating position. Since the positioning device 11 always determines the named zero point itself as the contact point, this results in an automatic self-adjustment, whereby changing boundary conditions, for example as a result of temperature fluctuations, are corrected automatically. The same applies to different ones Diameter of the printing cylinder 2, so that no adjustment work incurred even when format change.
  • Some functional units 3 are made in operation with pressure to the associated printing cylinder 2, others are set to gap to the associated printing cylinder 2.
  • the zero position is approached, which corresponds to the contact position at which the working member of the functional unit 3 impinges on the associated printing cylinder 2.
  • the drive motor 6 is controlled by the control unit 12 so that the functional unit 3 is moved back from the said zero position corresponding to the clear gap distance corresponding distance.
  • the distance covered is determined exactly by means of the path measuring device 18, so that the functional unit 3 reaches exactly the desired position, in which the desired gap width is present. To comply with this gap width over long periods of time, it can be provided that the zero position is approached again from time to time and the gap width is set again.
  • the transport of the functional unit 3 into the parked waiting position or the set-up position, in which the functional unit 3 can be removed or inserted also runs.
  • the drive motor 6 is controlled by the control unit 12 so that the functional unit 3 is delivered starting from the above zero position until signaled by the second sensor 23 of the desired contact pressure becomes.
  • the signal emitted by the second sensor 23 is a continuous signal whose level is continuously compared by the control unit 12 with a predetermined desired value. Each time the actual value is changed, an automatic readjustment results, so that the desired contact pressure is permanently maintained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung betrifft eine Rotationsdruckmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a rotary printing press according to the preamble of claim 1.

Eine derartige Vorrichtung ist bereits für eine Tiefdruckmaschine bekannt, und zwar aus der EP 0 934 827 A2 , wobei die Wege einer Gegendruckwalze und eines Presseurs gemessen werden. Separat davon ist die Position eines Farbwerks messbar.Such a device is already known for a gravure printing machine, namely from the EP 0 934 827 A2 in which the paths of a counterpressure roller and a impression roller are measured. Separately, the position of an inking unit is measurable.

Bei Anordnungen hier vorliegender Art ergeben sich Zustellbewegungen zwischen den Druckwerkszylindern und den diesen zugeordneten Funktionsaggregaten. Bei den bekannten Rotationsdruckmaschinen werden die Zustellbewegungen zwischen einander zugeordneten Organen in der Regel jeweils durch eine durch mechanische Anschläge begrenzte Schwenkbewegung realisiert. Nachteilig dabei ist, dass die Anschläge justiert und bei sich ändernden Randbedingungen nachjustiert werden müssen. Es ergibt sich daher ein hoher Bedienungsaufwand. Hinzu kommt, dass sich viele Randbedingungen, wie beispielsweise die Temperatur von Druckzylindern häufig oder laufend ändern, so dass eine exakte Nachjustierung mit vertretbarem Aufwand gar nicht möglich ist. Die Folge davon ist eine ungenaue Einstellung, was sich ungünstig auf das erzielbare Arbeitsergebnis auswirkt.In arrangements of this type present delivery movements occur between the printing unit cylinders and the associated functional units. In the known rotary printing machines, the feed movements between mutually associated organs are generally realized in each case by a limited by mechanical stops pivotal movement. The disadvantage here is that the attacks adjusted and must be readjusted with changing boundary conditions. It therefore results in a high operating cost. In addition, many boundary conditions, such as the temperature of printing cylinders frequently or continuously change, so that an exact readjustment with reasonable effort is not possible. The consequence of this is an inaccurate setting, which has an unfavorable effect on the achievable work result.

Darüber hinaus ist es auch bereits bekannt, z.B. bei Flexographie-Druckmaschinen ( EP 0 051 037 A1 ) oder Farbwerken von Flachdruckmaschinen ( US 5,025,726 ) Anstelldrücke von Walzen bzw. Zylindern zu messen und daraus Stellwerte zu ermitteln.In addition, it is also already known, for example in flexographic printing presses ( EP 0 051 037 A1 ) or inking units of planographic printing machines ( US 5,025,726 ) Measuring contact pressures of rollers or cylinders and to determine control values.

Hiervon ausgehend ist es daher die Aufgabe der vorliegenden Erfindung, eine Rotationsdruckmaschine mit einem Funktionsaggregat unter Vermeidung der Nachteile der bekannten mechanischen Anordnungen zu schaffen, bei der eine hohe Bedienungsfreundlichkeit und Genauigkeit gewährleistet sind.On this basis, it is therefore an object of the present invention to provide a rotary printing press with a functional unit while avoiding the disadvantages of the known mechanical arrangements, in which a high level of user-friendliness and accuracy are ensured.

Diese Aufgabe wird durch eine Rotationsdruckmaschine gemäß Anspruch 1 gelöst.This object is achieved by a rotary printing machine according to claim 1.

Diese Maßnahmen machen mechanische Anschläge entbehrlich, so dass in vorteilhafter Weise auch die damit verbundenen Nachteile entfallen. Die erfindungsgemäße Positioniereinrichtung ermöglicht in vorteilhafter Weise eine exakte Positionierung des zugeordneten Funktionsaggregats in jeder gewünschten Position, wobei eine automatische Anpassung an sich ändernde Randbedingungen erfolgen kann. Diese gilt in vorteilhafter Weise auch für sich ändernde Zylinderdurchmesser, was einen Formatwechsel erleichtert.These measures make mechanical attacks dispensable, so that account advantageously the associated disadvantages. The positioning device according to the invention advantageously allows an exact positioning of the associated functional unit in any desired position, wherein an automatic adaptation to changing boundary conditions can take place. This applies in an advantageous manner for changing cylinder diameter, which facilitates a format change.

Vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen der übergeordneten Maßnahmen sind in den Unteransprüchen angegeben. Erfindungsgemäß sind dem Funktionsaggregat Sensoren zur Feststellung des jeweils zurückgelegten Wegs sowie des Auftreffens auf den zugeordneten Druckwerkszylinder zugeordnet, deren Ausgangssignale dem Steuergerät zuführbar sind. Die Kombination von strecken- und punktbezogener Steuerung ergibt eine besonders hohe Genauigkeit beim Anfahren einer gewünschten Betriebsposition.Advantageous embodiments and expedient developments of the higher-level measures are specified in the subclaims. According to the invention, the function unit is associated with sensors for detecting the path traveled in each case as well as the impact on the associated printing unit cylinder whose output signals can be fed to the control unit. The combination of distance and point-related control results in a particularly high accuracy when approaching a desired operating position.

Vorteilhaft kann das Steuergerät so programmiert sein, dass das Funktionsaggregat bei aktivierter Antriebseinrichtung ausgehend von der beim Auftreffen auf den zugeordneten Druckwerkszylinder festgestellten Position in eine gewünschte Betriebsposition bewegbar ist. Die Position, bei der das Funktionsaggregat auf den zugeordneten Druckwerkszylinder auftrifft, bildet hier einen Nullpunkt bzw. Bezugspunkt, den sich das Funktionsaggregat in jedem Falle selbst sucht, so dass unabhängig von der Lage dieses Bezugspunkts stets eine exakte Betriebsposition erreichbar ist. Dabei kann es sich um eine Einstellung auf Druck oder auf Spalt handeln.Advantageously, the control unit can be programmed so that the functional unit can be moved to a desired operating position starting from the position determined upon impact with the associated printing unit cylinder when the drive device is activated. The position at which the functional unit impinges on the associated printing cylinder, here forms a zero point or reference point, which seeks the function unit in each case itself, so that regardless of the location of this reference point is always an exact operating position is reachable. This can be a pressure or gap setting.

Zweckmäßig kann die Sensoranordnung zur Feststellung des zurückgelegten Wegs einer Inkrementalanordnung zugeordnet sein. Dabei ergeben sich automatisch digitale Werte, die leicht datenmäßig verarbeitbar sind.The sensor arrangement can expediently be assigned to an incremental arrangement for determining the distance covered. This automatically results in digital values that are easy to process in terms of data.

Eine weitere vorteilhafte Ausgestaltung der übergeordneten Maßnahmen kann darin bestehen, dass die Sensoranordnung zur Feststellung des Auftreffens des Funktionsaggregats auf den zugeordneten Druckwerkszylinder als einem durch den Anpressdruck zwischen Funktionsaggregat und Druckwerkszylinder beanspruchbaren Teil der Antriebseinrichtung zugeordneter Dehnungsdetektor ausgebildet sein. Dieser liefert in vorteilhafter Weise ein dem Anpressdruck analoges Signal. Es ergibt sich daher gleichzeitig ein Drucksensor. Dies erleichtert die Ansteuerung der Antriebseinrichtung zum Erreichen einer Betriebsposition, bei der das Funktionsaggregat mit Druck an den zugeordneten Druckwerkszylinder angestellt wird. Die Einstellung des Funktionsaggregats auf Spalt bezüglich des zugeordneten Druckwerkszylinders erfolgt demgegenüber zweckmäßig wegabhängig.A further advantageous embodiment of the higher-level measures may consist in that the sensor arrangement for determining the impact of the functional unit on the associated printing cylinder as a strainable by the contact pressure between the functional unit and printing cylinder part of the drive means associated strain detector be formed. This advantageously provides a signal which is analogous to the contact pressure. It therefore results at the same time a pressure sensor. This facilitates the activation of the drive device for reaching an operating position, in which the functional unit is set with pressure on the associated printing cylinder. The setting of the functional unit to gap with respect to the associated printing cylinder takes place on the other hand functionally path-dependent.

In weiterer Fortbildung der übergeordneten Maßnahmen kann das Steuergerät, das zweckmäßig als programmierbarer Rechner ausgebildet ist, einen Kommunikationsanschluss für eine Fernprogrammierungs- und/oder -überwachungseinrichtung aufweisen. Dies ermöglicht in vorteilhafter Weise eine Behebung von Fehleinstellungen unter Benutzung moderner Kommunikationsmittel, wodurch sich eine ausgezeichnete Wartungs- und Servicefreundlichkeit ergeben.In a further development of the higher-level measures, the control unit, which is expediently designed as a programmable computer, may have a communication connection for a remote programming and / or monitoring device. This advantageously makes it possible to remedy misadjustments using modern communication means, resulting in an excellent maintenance and service friendliness.

Weitere vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen der übergeordneten Maßnahmen sind in den restlichen Unteransprüchen angegeben und aus der nachstehenden Beispielsbeschreibung anhand der Zeichnung näher entnehmbar.Further advantageous embodiments and expedient developments of the parent measures are specified in the remaining subclaims and from the following description of the example with reference to the drawing closer.

In der nachstehend beschriebenen Zeichnung zeigen:

Figur 1
eine schematische Ansicht einer Druckeinheit einer erfindungsgemäßen Rollenrotationsdruckmaschine und
Figur 2
ein Funktionsaggregat der Anordnung gemäß Figur 1 mit zugeordneten Antriebs-, Führungs- und Positioniereinrichtungen.
In the drawing described below:
FIG. 1
a schematic view of a printing unit of a web-fed rotary printing press according to the invention and
FIG. 2
a functional unit of the arrangement of Figure 1 with associated drive, guiding and positioning.

Der grundsätzliche Aufbau und die Wirkungsweise von Rotationsdruckmaschinen, wie Rollenrotationsdruckmaschinen, sind an sich bekannt und bedürfen daher im vorliegenden Zusammenhang keiner näheren Erläuterung mehr. Die der Figur 1 zugrundeliegende Druckeinheit besteht aus einem Maschinengestell 1, auf dem mehrere in an sich bekannter Weise zusammenwirkende, hier ein Doppeldruckwerk bildende Druckwerkszylinder 2 gelagert sind. Diesen sind verschiedene, zum Betrieb der Druckmaschine notwendige Einrichtungen, wie Farbwerke, Feuchtwerke, Wascheinrichtungen, Bebilderungseinrichtungen, Fixiereinrichtungen, Löscheinrichtungen, zugeordnet. Diese Einrichtungen bilden jeweils ein in die Druckeinheit einsetzbares Funktionsaggregat 3, das außerhalb der Maschine komplett vormontierbar und in sich einstellbar ist.The basic structure and the operation of rotary printing presses, such as web-fed rotary printing presses, are known per se and therefore need no further explanation in the present context. The Figure 1 underlying printing unit consists of a machine frame 1, on which several in a conventional manner cooperating, here a double printing unit forming printing cylinder 2 are mounted. These are various, necessary for the operation of the printing press facilities, such as inking, dampening, washing facilities, imaging devices, fixing, extinguishing equipment, assigned. These devices each form an insertable into the printing unit function unit 3, which is completely pre-assembled outside the machine and in itself adjustable.

Zumindest ein Teil der Funktionsaggregate 3 ist jeweils mit den gestellseitigen Enden auf an den Seitenwänden des Maschinengestells 1 angebrachten Führungsschienen 4 aufgenommen, die eine lineare Führungseinrichtung bilden. Diese Funktionsaggregate 3 sind dementsprechend gegenüber dem jeweils zugeordneten Druckwerkszylinder 2 in linearer Richtung verstellbar.At least a part of the functional units 3 is received in each case with the frame-side ends mounted on the side walls of the machine frame 1 guide rails 4, which form a linear guide device. These functional units 3 are accordingly adjustable relative to the respectively associated printing cylinder 2 in the linear direction.

Jedes dieser linear verstellbaren Funktionsaggregate 3 ist mit einer in Figur 2 näher dargestellten Antriebseinrichtung 5 versehen. Diese umfasst einen am Maschinengestell 1 befestigten, elektrischen Antriebsmotor 6, der über ein Vorgelege 7 eine auf am Maschinengestell 1 angebrachten Lagerschilden 8 gelagerte Gewindespindel 9 antreibt, die in Eingriff mit einer am zugeordneten Funktionsaggregat 3 angebrachten Gewindemutter 10 bringbar ist. Dabei kann es sich um eine halboffene Gewindemutter handeln, so dass eine einfache Entkopplung zwischen Funktionsaggregat 3 und gestellseitiger Antriebseinrichtung 5 möglich ist, was das Einsetzen bzw. Abnehmen des Funktionsaggregats 3 besonders vereinfacht.Each of these linearly adjustable functional units 3 is provided with a drive device 5 shown in detail in FIG. This comprises a fixed to the machine frame 1, electric drive motor 6, which drives via a countershaft 7 mounted on the machine frame 1 end shields 8 threaded spindle 9, which is engageable with a mounted on the associated functional unit 3 threaded nut 10. This may be a half-open threaded nut, so that a simple decoupling between the functional unit 3 and the frame-side drive device 5 is possible, which particularly simplifies the insertion or removal of the functional unit 3.

Der Antriebsmotor 6, bei dem es sich um einen Gleichstrommotor handeln kann, ist mittels einer dem Funktionsaggregat 3 zugeordneten, ebenfalls in Figur 2 dargestellten Positioniereinrichtung 11 steuerbar. Diese umfasst ein als programmierbarer Rechner ausgebildetes Steuergerät 12, in das die gewünschten Positionen, die das Funktionsaggregat 3 anfahren können soll, in Form elektronischer Daten eingegeben sind und dem der jeweils aktuellen Position des Funktionsaggregats 3 entsprechende Messwerte in Form geeigneter Signale zugeführt werden. In der Regel gibt es drei Positionen, die das Funktionsaggregat 3 anfahren muss, nämlich eine Betriebsstellung, eine abgestellte Stellung und eine Umrüststellung.The drive motor 6, which may be a DC motor, can be controlled by means of a positioning device 11 assigned to the functional unit 3 and also shown in FIG. This comprises a control unit 12 embodied as a programmable computer, in which the desired positions which the functional unit 3 is to be approached are entered in the form of electronic data and corresponding measured values are supplied to the respective current position of the functional unit 3 in the form of suitable signals. As a rule, there are three positions that the functional unit 3 must approach, namely an operating position, a parked position and a conversion position.

Das Steuergerät 12 ermittelt aus den ihm zugeführten, positionsabhängigen Signalen Steuerbefehle für den Antriebsmotor 6, die über eine Signalleitung 13 übertragen werden. Zum Eingeben der Werte der anzufahrenden Positionen ist eine Eingabeeinrichtung 14 vorgesehen, die über eine Signalleitung 15 mit dem Steuergerät 12 verbunden ist. Das Steuergerät 12 besitzt ferner einen Eingang für eine durch eine Signalleitung 16 angedeutete Verbindung mit der Maschinensteuereinrichtung, welche die Einsatzbefehle gibt. Außerdem besitzt das Steuergerät 12 im dargestellten Beispiel einen sogenannten Remote-Anschluss, dem eine Signalleitung 17 zugeordnet ist, über die eine Kommunikation mit dem Steuergerät 12 und dementsprechend eine Fernprogrammierung und/oder Fernüberwachung möglich ist.The control unit 12 determines from the position-dependent signals supplied to it control commands for the drive motor 6, which are transmitted via a signal line 13. For inputting the values of the positions to be approached, an input device 14 is provided, which is connected to the control device 12 via a signal line 15. The control unit 12 further has an input for a signal indicated by a signal line 16 connection with the machine control device, which gives the use commands. In addition, in the example shown, the control unit 12 has a so-called remote connection to which a signal line 17 is assigned, via which communication with the control unit 12 and, accordingly, remote programming and / or remote monitoring is possible.

Die Messglieder zur Ermittlung der erwähnten, positionsabhängigen Messwerte bestehen aus einer Wegmesseinrichtung 18, welche den vom Funktionsaggregat 3 jeweils zurückgelegten Weg misst, und einer Tasteinrichtung 19 zur Abtastung des oben erwähnten Nullpunkts, auf den die Wegmesseinrichtung 18 Bezug nehmen kann. Die Wegmesseinrichtung 18 enthält ein Inkrementalelement 20, dem ein Sensor 21 zugeordnet ist, der so angeordnet ist, dass sich eine Relativbewegung zwischen Inkrementalelement 20 und Sensor 21 ergibt. Der Ausgang des Sensors 21 ist über eine Signalleitung 22 mit einem zugeordneten Eingang des Steuergeräts 12 verbunden. Die Tasteinrichtung 19 enthält einen zweiten Sensor 23, der beim Auftreffen des Funktionsaggregats 3 auf den zugeordneten Druckwerkszylinder 2 ein Signal erzeugt, das über eine Signalleitung 24 einem zugeordneten Eingang des Steuergeräts 12 zugeführt wird.The measuring elements for determining the mentioned, position-dependent measured values consist of a displacement measuring device 18, which measures the distance traveled by the functional unit 3 in each case, and a sensing device 19 for scanning the abovementioned zero point, to which the displacement measuring device 18 can refer. The displacement measuring device 18 includes an incremental element 20, to which a sensor 21 is assigned, which is arranged so that a relative movement between the incremental element 20 and the sensor 21 results. The output of the sensor 21 is connected via a signal line 22 to an associated input of the control unit 12. The sensing device 19 includes a second sensor 23, the signal upon impact of the functional unit 3 on the associated printing cylinder 2 generated, which is supplied via a signal line 24 to an associated input of the control unit 12.

Zweckmäßig wird der Nullpunkt, den die erfindungsgemäße Positioniereinrichtung zur Bewerkstelligung einer Selbstjustage selbsttätig abtastet, wie oben schon angedeutet ist, als die Position definiert, bei der das Funktionsaggregat 3 mit seinem dem Druckwerkszylinder 2 zugeordneten Arbeitsorgan auf den zugeordneten Druckwerkszylinder 2 aufläuft und diesen berührt. Der zweite Sensor 23 ist dementsprechend so ausgebildet, dass ein Signal abgegeben wird, wenn das zugehörige Funktionsaggregat 3 auf den zugeordneten Druckwerkszylinder 2 aufläuft. Im dargestellten Ausführungsbeispiel ist der zweite Sensor 23 als Dehnmessstreifen ausgebildet, der an einem der Gewindespindel 9 zugeordneten Lagerschild 8 angebracht ist. Über dieses läuft der Kraftfluss zur Ableitung einer beim Auflaufen des Funktionsaggregats 3 auf den zugeordneten Druckwerkszylinder 2 von diesem ausgeübten Reaktionskraft auf das Maschinengestell 1. Das Lagerschild 8 wird dabei auf Biegung beansprucht, die mit zunehmender Anpresskraft zunimmt und umgekehrt.Appropriately, the zero point that scans the inventive positioning to accomplish a self-adjustment automatically, as already indicated above, defined as the position at which the functional unit 3 runs with its the printing cylinder 2 associated working member on the associated printing cylinder 2 and touches them. The second sensor 23 is accordingly designed so that a signal is emitted when the associated functional unit 3 runs onto the associated printing cylinder 2. In the illustrated embodiment, the second sensor 23 is formed as a strain gauge, which is attached to one of the threaded spindle 9 associated bearing plate 8. About this runs the power flow for deriving a running when the functional unit 3 on the associated printing cylinder 2 of this exerted reaction force on the machine frame 1. The bearing plate 8 is claimed to bending, which increases with increasing contact pressure and vice versa.

Der den zweiten Sensor 23 bildende Dehnmessstreifen liefert somit ein zum Anpressdruck analoges Signal. Der Beginn dieses Signals entspricht praktisch der ersten Berühung und dementsprechend dem oben genannten Nullpunkt. Der weitere Verlauf dieses Signals korreliert mit dem Anpressdruck. Das vom zweiten Sensor 23 gelieferte Signal enthält daher in vorteilhafter Weise eine Doppelaussage, nämlich eine Anzeige des als Nullpunkt verwendbaren Kontaktpunkts sowie eine Anzeige des Anpressdrucks, dessen genaue Einhaltung in vielen Fällen erwünscht ist.The strain gauge forming the second sensor 23 thus provides a signal analogous to the contact pressure. The beginning of this signal corresponds practically to the first Berühung and accordingly the above zero point. The further course of this signal correlates with the contact pressure. The signal delivered by the second sensor 23 therefore advantageously contains a double statement, namely an indication of the contact point which can be used as the zero point, as well as an indication of the contact pressure, the exact observance of which is desirable in many cases.

Das Steuergerät 12 ist hier so programmiert, dass das Funktionsaggregat 3 bei aktivierter Antriebseinrichtung 5 ausgehend von dem in oben dargelegter Weise selbst gesuchten Nullpunkt in eine gewünschte Betriebsposition bewegbar ist. Da die Positioniereinrichtung 11 den genannten Nullpunkt stets selbst als den Kontaktpunkt ermittelt, ergibt sich eine automatische Selbstjustage, wobei sich ändernde Randbedingungen, beispielsweise in Folge von Temperaturschwankungen automatisch ausgeregelt werden. Dasselbe gilt auch für unterschiedliche Durchmesser der Druckwerkszylinder 2, so dass auch beim Formatwechsel keine Justagearbeiten anfallen.The control unit 12 is here programmed so that the functional unit 3 with activated drive device 5, starting from the self-seeking in the manner outlined above zero point is movable into a desired operating position. Since the positioning device 11 always determines the named zero point itself as the contact point, this results in an automatic self-adjustment, whereby changing boundary conditions, for example as a result of temperature fluctuations, are corrected automatically. The same applies to different ones Diameter of the printing cylinder 2, so that no adjustment work incurred even when format change.

Manche Funktionsaggregate 3 werden im Betrieb mit Druck an den zugeordneten Druckwerkszylinder 2 angestellt, andere werden auf Spalt zum zugeordneten Druckwerkszylinder 2 eingestellt. Zunächst wird in jedem Fall die Nullposition angefahren, die der Kontaktposition entspricht, bei der das Arbeitsorgan des Funktionsaggregats 3 auf den zugeordneten Druckwerkszylinder 2 auftrifft. Sofern ein Spalt eingestellt werden soll, wird der Antriebsmotor 6 vom Steuergerät 12 so angesteuert, dass das Funktionsaggregat 3 ausgehend von der genannten Nullposition eine der lichten Spaltweite entsprechende Wegstrecke zurückbewegt wird. Die zurückgelegte Strecke wird mittels der Wegmesseinrichtung 18 exakt festgestellt, so dass das Funktionsaggregat 3 exakt in die gewünschte Position gelangt, bei der die gewünschte Spaltweite vorliegt. Zur Einhaltung dieser Spaltweite über längere Zeiträume hinweg kann vorgesehen sein, dass von Zeit zu Zeit die Nullposition wieder angefahren und die Spaltweite von neuem eingestellt wird.Some functional units 3 are made in operation with pressure to the associated printing cylinder 2, others are set to gap to the associated printing cylinder 2. First, in each case, the zero position is approached, which corresponds to the contact position at which the working member of the functional unit 3 impinges on the associated printing cylinder 2. If a gap is to be set, the drive motor 6 is controlled by the control unit 12 so that the functional unit 3 is moved back from the said zero position corresponding to the clear gap distance corresponding distance. The distance covered is determined exactly by means of the path measuring device 18, so that the functional unit 3 reaches exactly the desired position, in which the desired gap width is present. To comply with this gap width over long periods of time, it can be provided that the zero position is approached again from time to time and the gap width is set again.

Beim Drucken größerer Auflagen kann dies z.B. während der betriebsbedingten Betriebsunterbrechungen z.B. in den Waschpausen, erfolgen. Bei kleineren Auflagen kommt man in der Regel mit einer Einstellung pro Druckauftrag aus.When printing larger runs, this may e.g. during operational stoppages e.g. in the washing breaks, done. With smaller runs, one usually gets by with one setting per print job.

Ähnlich wie die Einstellung eines Spalt verläuft auch der Transport des Funktionsaggregats 3 in die abgestellte Warteposition bzw. die Rüstposition, in welcher das Funktionsaggregat 3 abnehmbar bzw. einsetzbar ist.Similar to the setting of a gap, the transport of the functional unit 3 into the parked waiting position or the set-up position, in which the functional unit 3 can be removed or inserted, also runs.

Sofern das Funktionsaggregat 3 mit dem zugeordneten Druckwerkszylinder 2 unter Einhaltung eines vorgegebenen Anpressdrucks zusammenwirken soll, wird der Antriebsmotor 6 vom Steuergerät 12 so angesteuert, dass das Funktionsaggregat 3 ausgehend von der oben genannten Nullposition solange zugestellt wird, bis vom zweiten Sensor 23 der gewünschte Anpressdruck signalisiert wird. Bei dem vom zweiten Sensor 23 abgegebenen Signal handelt es sich um ein Dauersignal, dessen Höhe vom Steuergerät 12 permanent mit einem vorgegebenen Sollwert verglichen wird. Bei jeder Änderung des Istwerts ergibt sich somit eine automatische Nachstellung, so dass der gewünschte Anpressdruck permanent eingehalten wird.If the functional unit 3 is to interact with the associated printing cylinder 2 while maintaining a predetermined contact pressure, the drive motor 6 is controlled by the control unit 12 so that the functional unit 3 is delivered starting from the above zero position until signaled by the second sensor 23 of the desired contact pressure becomes. The signal emitted by the second sensor 23 is a continuous signal whose level is continuously compared by the control unit 12 with a predetermined desired value. Each time the actual value is changed, an automatic readjustment results, so that the desired contact pressure is permanently maintained.

Claims (10)

  1. A rotary printing machine, in particular a web-fed rotary printing machine, having at least one printing group which comprises a plurality of printing-group cylinders (2) of which at least one can be operatively connected to and disconnected from at least one function unit (3) that is associated with a function required to operate the printing group and is provided with a drive device (5) and is received on a linear guiding device (4) and associated with which there is a positioning device (11) that has a control mechanism (12), characterised in that it is possible to feed to the control mechanism (12) position-dependent signals which can be generated by means of a sensor arrangement (21; 23) associated with the function unit (3) and by means of which the drive device (5) can be activated, with, for the purpose of identifying the respective path covered when the drive device (5) is activated, a sensor (21) and a second sensor (23) generating, at the time when the associated printing-group cylinder (2) is struck, respective signals that can be fed to the control mechanism (12).
  2. A rotary printing machine according to claim 1, characterised in that a signal that corresponds to the contact pressure between the function unit (3) and the printing-group cylinder (2) and can be fed to the control mechanism (12) is generated by the second sensor (23).
  3. A rotary printing machine according to claim 2, characterised in that the second sensor (23) generates a continuous signal that is analogous to the contact pressure and whose beginning corresponds to the strike of the function unit (3) against the associated printing-group cylinder (2).
  4. A rotary printing machine according to one of the preceding claims, characterised in that the control mechanism (12) is programmed in such a way that the function unit (3) can be moved into a desired operating position by means of the drive device (5), starting from the position that is identified when the associated printing-group cylinder (2) is struck.
  5. A rotary printing machine according to claim 4, characterised in that the drive device (5) can be activated in order to move the function unit (3) into an operating position with a gap between the function unit (3) and the printing-group cylinder (2) in a manner that is dependent upon the path covered.
  6. A rotary printing machine according to claim 4, characterised in that the drive device (5) can be activated in order to move the function unit (3) into an operating position with pressing between the function unit (3) and the printing-group cylinder (2) in a manner that is dependent upon the contact pressure.
  7. A rotary printing machine according to one of the preceding claims, characterised in that at least one operating position and one turned-off position and also preferably an additional alternating position are provided along the path of displacement of the function unit (3).
  8. A rotary printing machine according to one of the preceding claims, characterised in that the sensor (21) for identifying the path covered is associated with an incremental arrangement (20).
  9. A rotary printing machine according to one of the preceding claims, characterised in that the second sensor (23) for identifying the strike of the function unit (3) against the associated printing-group cylinder (2) and/or the contact pressure is formed as a strain detector that is preferably formed as a strain gauge and is associated with a part of the drive device (5) that can be loaded by the contact pressure between the function unit (3) and the printing-group cylinder (2).
  10. A rotary printing machine according to claim 9, characterised in that the strain detector that is preferably formed as a strain gauge is associated with an end shield (8) of a feed screw (9) with which the function unit (3) can be engaged and which can be driven by means of a drive motor (6) that can be activated by the control mechanism (12).
EP01118944A 2000-08-30 2001-08-04 Rotary printing machine Expired - Lifetime EP1184177B1 (en)

Applications Claiming Priority (2)

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DE10042503 2000-08-30
DE10042503A DE10042503A1 (en) 2000-08-30 2000-08-30 Rotary press

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US (1) US6655277B2 (en)
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JP (2) JP2002086672A (en)
CA (1) CA2356105C (en)
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US20050072328A1 (en) * 2003-10-03 2005-04-07 Gilliam Ronald D. Automated system to control printing contact pressure
WO2007086052A2 (en) * 2006-01-25 2007-08-02 Advanced Vision Technology (Avt) Ltd. System and method for setting up a printing press
EP1839854A1 (en) * 2006-03-31 2007-10-03 ELTROMAT GmbH Method and device for the optimal position adjustment in a rotary flexographic printing machine comprising several printing groups
ES2303471B1 (en) * 2007-01-26 2009-04-16 Comexi, S.A. FLEXOGRAPHIC PRINTER MACHINE WITH IMPROVED STABILITY PRINTING UNITS.
ITFI20080064A1 (en) * 2008-04-04 2009-10-05 Perini Fabio Spa "PRINTING MACHINE AND METHOD FOR ITS CALIBRATION"
JP5754577B2 (en) 2009-02-03 2015-07-29 スリーボンドファインケミカル株式会社 Dye-sensitized solar cell sealing agent composition
IT1400201B1 (en) * 2010-05-25 2013-05-24 Perini Fabio Spa EMBOSSING GROUP AND EMBOSSING METHOD.
US8919250B2 (en) * 2010-08-02 2014-12-30 Goss International Americas, Inc. Printing press and method for positioning cylinders therein
CN103158335B (en) * 2011-12-08 2016-02-03 潮州市彩达包装机械有限公司 The rotatable imprinting apparatus of three arbor wheels

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JP2002086672A (en) 2002-03-26
EP1184177A3 (en) 2004-03-17
DE50113427D1 (en) 2008-02-14
CA2356105A1 (en) 2002-02-28
CA2356105C (en) 2007-07-24
EP1184177A2 (en) 2002-03-06
US20020078844A1 (en) 2002-06-27
US6655277B2 (en) 2003-12-02
JP2005297578A (en) 2005-10-27
DE10042503A1 (en) 2002-03-14

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