EP1717027A2 - Process and device for driving rotary bodies in a printing press - Google Patents
Process and device for driving rotary bodies in a printing press Download PDFInfo
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- EP1717027A2 EP1717027A2 EP06007942A EP06007942A EP1717027A2 EP 1717027 A2 EP1717027 A2 EP 1717027A2 EP 06007942 A EP06007942 A EP 06007942A EP 06007942 A EP06007942 A EP 06007942A EP 1717027 A2 EP1717027 A2 EP 1717027A2
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- printing
- bodies
- plate
- mode
- rotational
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/004—Electric or hydraulic features of drives
- B41F13/0045—Electric driving devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2217/00—Printing machines of special types or for particular purposes
- B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
- B41P2217/13—Machines with double or multiple printing units for "flying" printing plates exchange
Definitions
- the invention relates to a method and a device for driving rotational bodies of a printing press, which rotate in a first mode with different phase angles and in a second mode with the same phase.
- the printing material and printing image-carrying rotary body (printing cylinder, transfer drums, blanket cylinder, plate cylinder ...) of conventional printing presses are driven by a all aggregates (printing and coating units) connecting gear train (drive wheel train).
- the angular positions of the rotating bodies are fixed to one another.
- discontinuous movements eg Greifer horrgetriebe, Kanalüberroll Institute on sheetfed presses
- vibration-inducing forces not at all aggregates simultaneously in the drive wheel train but temporally distributed, for example, the printing units are not operated with the same angular position (phase), but by a certain angle of rotation offset from each other.
- the phase angle characterizes the rotational angular position of a characteristic reference point on the circumferential contour of a single large rotational body, for example, the rotational angular position of the cylinder channel of a plate cylinder of a sheet-fed offset printing press, at a certain time.
- a rotational angle offset of 120 ° is selected between adjacent printing units, so that every third printing unit has the same phase positions of the rotational bodies arranged therein. This means that the same pressure events occur simultaneously in every third printing unit.
- this rotation angle offset and thus the number of synchronous printing units on the choice of the step angle ⁇ (angle between the straight line connecting the axis pressure cylinder - axis transfer cylinder and the horizontal) and in dependence on the diameter ratios of the contacting cylinder or drums be determined.
- the rotational angular offset is 180 °, e.g. the printing cylinders in adjacent printing units are rotated by 180 ° with respect to one another, or the same pressure events occur simultaneously in every second printing unit.
- auxiliary processes such as a plate change on all plate cylinders of the printing units a rotary printing press
- the press has to move in succession and in groups (in each case the rotational bodies with the same phase position) with all the rotational bodies involved, the rotational angle position required for the respective auxiliary process. For example, if a sheet-fed offset printing press has 9 printing units and the phase positions of adjacent printing units are offset by 120 °, a plate change first in the works 1,4,7, then in the works 2,5,8 and finally in the works 3,6 , 9 take place simultaneously.
- a disadvantage of this solution is the high cost of equipping all printing units with individual drives, which include motors, drive controllers, rotation angle position sensor and additional electrical connections.
- the invention is therefore based on the object to reduce the cost of the individual drives, without reducing the time-saving potential of individual drives in the implementation of auxiliary processes.
- the object is achieved by a device having the features of the first claim or a method having the features of the third claim.
- the basic idea of the proposed solution is to equip the rotating bodies involved in the auxiliary process as a function of their phase position with individual drives (partial individual drive).
- the costs for the individual drives can be saved at the reference phase rotational bodies.
- the rotary bodies with the first phase position are rotated together by the existing drive wheel train of the printing press in the required rotational angle position for the respective auxiliary process, while the other rotating bodies are simultaneously rotated by the individual drives in this rotational angular position.
- the invention has the advantage that the same time savings with a reduced number of individual drives as with complete equipment with individual drives.
- the largest cost saving effect for the single drive configuration occurs when the group of reference phase rotational bodies driven by the drive wheel train forms the group with the highest number of rotational bodies.
- the sheet-fed offset printing machine consists of 4 printing units DW1... 4, wherein only the double-sized printing cylinders and the simply large blanket cylinders GZ1..4 and plate cylinders PZ1..4 are represented by the printing units. All four printing units DW1 ... 4 are via a drive wheel ARZ, by the meshing drive gears of the individual cylinders DZ1..4, GZ1 ... 4, PZ1 ... 4 in the printing units DW1 ... 4 and the Transfer drums ÜT1 ... 3 between the printing units DW1 ... 4 is formed, driven.
- the drive torque for the drive wheel train ARZ is provided in known manner by one or more main drives (not shown). Between the printing units DW1 ...
- phase position difference 120 °, i. the blanket and plate cylinders GZ1, GZ4, PZ1, PZ4 in the first and fourth printing units DW1, DW4 are in the same angular position or have the same (first) phase position.
- the color separations in the first and fourth printing units DW1, DW4 are simultaneously transferred to the sheets, while the partial printing units in the second printing unit DW2 offset by an angle of rotation of 120 ° to the first phase position of the first printing unit DW1 and the third printing unit DW3 240 ° offset to the first Printing unit DW1 is transferred to the sheet.
- the (further) plate cylinders PZ2, PZ3 in the second and third printing units DW2, DW3 rotate with (further) phase positions offset by 120 ° or by 240 ° with respect to the first or fourth printing unit DW1, DW4.
- the plate change is an auxiliary process (second mode) in which the plate cylinder PZ1 ... 4 in a certain, in all printing units DW1 ... 4 same Drehwinkeiposition the equipped with Plattenklemmvoruzeen cylinder channel must be rotated so that the removal of the old printing plate and the mounting the new printing plate can be performed without major manual effort.
- the drive wheel train ARZ When all the plate cylinders PZ1 ... 4 are conventionally driven by the drive wheel train ARZ, the drive wheel train ARZ must first be rotated to the common disk change position of the first and fourth printing units DW1, DW4. After completion of the plate changing process, the drive wheel ARZ is further rotated by 120 ° to the plate change position of the plate cylinder PZ2 in the second printing unit DW2. If the plate change is completed there, the drive wheel ARZ is rotated by a further 120 ° to the plate changing position of the third printing unit DW3.
- a conventional 4-works press thus requires three cycles for a complete plate change.
- a 4-plate press equipped with single plate cylinder drives requires only one plate change cycle because all plate cylinders can be rotated independently of the drive gear train and simultaneously into the plate change position, but requires the investment of 4 individual drives.
- only the (further) plate cylinders PZ2, PZ3 on the second and third printing units DW2, DW3 are each assigned a single drive M1, M2 in the exemplary 4-for-press, which reduces the capital outlay to 50% compared to a press fully equipped with individual drives. can be reduced.
- the plate cylinders PZ1, PZ4 in the first and fourth printing units DW1, DW4 remain integrated in the drive wheel train ARZ, since they have a matching phase position and do not require separate twistability.
- the coincident phase position is referred to as a reference or first phase position and the plate cylinder PZ1, PZ4 driven by the drive wheel train ARZ are referred to as first rotation bodies in an analogous manner.
- the in accordance with the invention with only two single drives M1, M2 equipped press also requires only a disc change cycle. While the (first) plate cylinder PZ1, PZ4 in the first and fourth printing unit DW1, DW4 jointly from Drive wheel ARZ are rotated in the disk change position, the (further) plate cylinder PZ2, PZ3 in the second and third printing DW2, DW3 parallel to it by the associated individual drives M1, M2 of their (further) phase angles in the first phase position of the drive wheel ARZ moving plate cylinder PZ1, PZ4 turned until all plate cylinders PZ1 ... 4 have reached the common plate change position at approximately the same time.
- the further plate cylinders PZ2, PZ3 can first be rotated in a "catch-up movement" into the first phase position of the plate cylinders PZ1, PZ4 in the first and fourth printing units DW1, DW4 and then rotate all the plate cylinders PZ1 ... 4 with synchronized phase position in the plate changing position. It is also possible that, in order to shorten the plate changing time, the individually driven plate cylinders PZ2, PZ3 are rotated independently of each other and initially independent of the phase position of the plate cylinder PZ1, PZ4 driven by the drive wheel train ARZ on the shortest path to the plate changing position and synchronized in time with the first Plate cylinders PZ1, PZ2 reach the plate change position.
- the configuration according to the invention of single-drive printing machines is applicable to all rotary bodies that temporarily perform in-phase movements.
- the coupling of the individual drives M1, M2 for the plate cylinder PZ2, PZ3 with the associated blanket cylinders GZ2, GZ3 for the synchronized implementation of other auxiliary processes, such as washing processes, within the scope of the invention.
- the synchronization of the individual drives M1, M2 takes place in a known manner via (not shown) rotary encoder on the individually driven bodies of revolution (plate cylinder PZ2, PZ3) and associated rotary encoder, for example, adjacent rotational bodies, which are moved over the drive wheel ARZ (in the example on the blanket cylinders GZ2 , GZ3), wherein the rotation angle signals are processed by drive controllers (not shown) which synchronize with the drive wheel train ARZ.
- the drive control system is simplified and relieved of synchronization tasks, so that shorter response times and lower vibration tendency can be achieved with longer machines with a higher number of printing units.
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Antrieb von Rotationskörpern einer Druckmaschine, die in einer ersten Betriebsart mit unterschiedlichen Phasenlagen und in einer zweiten Betriebsart mit gleicher Phasenlage rotieren.The invention relates to a method and a device for driving rotational bodies of a printing press, which rotate in a first mode with different phase angles and in a second mode with the same phase.
Die bedruckstoff- und druckbildführenden Rotationskörper (Druckzylinder, Übergabetrommeln, Gummituchzylinder, Plattenzylinder ...) von konventionellen Druckmaschinen werden über einen alle Aggregate (Druck- und Lackwerke) verbindenden Zahnräderzug (Antriebsräderzug) angetrieben.The printing material and printing image-carrying rotary body (printing cylinder, transfer drums, blanket cylinder, plate cylinder ...) of conventional printing presses are driven by a all aggregates (printing and coating units) connecting gear train (drive wheel train).
Aufgrund der mechanischen Kopplung der Aggregate und der darin angeordneten Rotationskörper sind die Winkelstellungen der Rotationskörper zueinander festgelegt. Um die durch diskontinuierliche Bewegungen (z.B. Greifersteuergetriebe, Kanalüberrollungen an Bogendruckmaschinen) verursachten schwingungsanregenden Kräfte nicht an allen Aggregaten gleichzeitig in den Antriebsräderzug einzuleiten, sondern zeitlich zu verteilen, werden beispielsweise die Druckwerke nicht mit der gleichen Drehwinkelstellung (Phasenlage) betrieben, sondern um einen bestimmten Drehwinkel zueinander versetzt. Die Phasenlage kennzeichnet die Drehwinkellage eines charakteristischen Bezugspunktes auf der Umfangskontur eines einfach großen Rotationskörpers, beispielsweise die Drehwinkelposition des Zylinderkanals eines Plattenzylinders einer Bogenoffset-Druckmaschine, zu einem bestimmten Zeitpunkt.Due to the mechanical coupling of the units and the rotational body arranged therein, the angular positions of the rotating bodies are fixed to one another. To initiate by discontinuous movements (eg Greifersteuergetriebe, Kanalüberrollungen on sheetfed presses) vibration-inducing forces not at all aggregates simultaneously in the drive wheel train, but temporally distributed, for example, the printing units are not operated with the same angular position (phase), but by a certain angle of rotation offset from each other. The phase angle characterizes the rotational angular position of a characteristic reference point on the circumferential contour of a single large rotational body, for example, the rotational angular position of the cylinder channel of a plate cylinder of a sheet-fed offset printing press, at a certain time.
Häufig wird ein Drehwinkelversatz von 120° zwischen benachbarten Druckwerken gewählt, so dass jedes dritte Druckwerk die gleichen Phasenlagen der darin angeordneten Rotationskörper aufweist. Das heißt, dass in jedem dritten Druckwerk gleiche Druckereignisse zeitgleich ablaufen.Frequently, a rotational angle offset of 120 ° is selected between adjacent printing units, so that every third printing unit has the same phase positions of the rotational bodies arranged therein. This means that the same pressure events occur simultaneously in every third printing unit.
Bei Bogenoffset-Druckmaschinen in Reihenbauweise kann dieser Drehwinkelversatz und damit die Anzahl der gleichlaufenden Druckwerke über die Wahl des Stufenwinkels α (Winkel zwischen der geraden Verbindungslinie Achse Druckzylinder - Achse Übertragungszylinder und der Waagerechten) und in Abhängigkeit von den Durchmesserverhältnissen der in Kontakt stehenden Zylinder oder Trommeln festgelegt werden.In sheet-fed offset printing machines in series construction, this rotation angle offset and thus the number of synchronous printing units on the choice of the step angle α (angle between the straight line connecting the axis pressure cylinder - axis transfer cylinder and the horizontal) and in dependence on the diameter ratios of the contacting cylinder or drums be determined.
In einer Bogenoffset-Druckmaschine mit einem, Stufenwinkel α = 22,5° und einem Durchmesserverhältnis Plattenzylinder : Gummizylinder : Druckzylinder : Übertragungszylinder = 1:1:2:2 beträgt beispielsweise der Drehwinkelversatz 180°, d.h. die Druckzylinder in benachbarten Druckwerken sind zueinander um 180° verdreht bzw. in jedem zweiten Druckwerk laufen zeitgleich gleiche Druckereignisse ab.For example, in a sheet-fed offset printing machine having a step angle α = 22.5 ° and a plate cylinder: blanket cylinder: printing cylinder: transfer cylinder = 1: 1: 2: 2, the rotational angular offset is 180 °, e.g. the printing cylinders in adjacent printing units are rotated by 180 ° with respect to one another, or the same pressure events occur simultaneously in every second printing unit.
Die permanente mechanische Kopplung der Rotationskörper hat den Nachteil, dass Hilfsprozesse, wie beispielsweise ein Plattenwechsel an allen Plattenzylindern der Druckwerke einer Rotationsdruckmaschine, nicht an allen betroffenen Rotationskörpern gleichzeitig durchgeführt werden können. Die Druckmaschine muss vielmehr nacheinander und gruppenweise (jeweils die Rotationskörper mit gleicher Phasenlage) mit allen beteiligten Rotationskörpern die für den jeweiligen Hilfsprozess erforderliche Drehwinkelstellung anfahren. Wenn beispielsweise eine Bogenoffset-Druckmaschine 9 Druckwerke besitzt und die Phasenlagen benachbarter Druckwerke um 120° versetzt sind, kann ein Plattenwechsel zuerst in den Werken 1,4,7, danach in den Werken 2,5,8 und zuletzt in den Werken 3,6,9 gleichzeitig stattfinden.The permanent mechanical coupling of the rotary body has the disadvantage that auxiliary processes, such as a plate change on all plate cylinders of the printing units a rotary printing press, can not be performed on all affected bodies of revolution simultaneously. Rather, the press has to move in succession and in groups (in each case the rotational bodies with the same phase position) with all the rotational bodies involved, the rotational angle position required for the respective auxiliary process. For example, if a sheet-fed offset printing press has 9 printing units and the phase positions of adjacent printing units are offset by 120 °, a plate change first in the
Wenn eine Bogenoffset-Druckmaschine eine Bogenwendung aufweist, müssen die Druckplatten in den Druckwerksgruppen vor und nach dem Wendeaggregat nacheinander gewechselt werden, da durch die Wendeeinrichtung und die Formatverstellung kein fester Drehwinkelbezug zwischen den Druckwerken vor und nach dem Wendeaggregat besteht. Eine Druckmaschine mit 3 Druckwerken vor und 3 Druckwerken nach der Wendung und mit 120° Phasenlagenversatz benötigt 6 Zyklen für den Plattenwechsel an allen Plattenzylindern. Der dafür benötigte Zeitaufwand steht der Forderung nach kurzen Rüst- und Auftragwechselzeiten entgegen.If a sheetfed offset printing machine has a perfecting, the printing plates in the groups of printing units before and after the turning unit must be changed one after the other, since the turning device and the format adjustment no fixed rotational angle reference between the printing units before and after the turning unit. A press with 3 printing units before and 3 printing units after turning and with 120 ° phase shift requires 6 cycles for plate changing on all plate cylinders. The time required for this is contrary to the demand for short set-up and order change times.
Zur Reduzierung des Zeitbedarfs für Hilfsprozesse bei z.B. einem Auftragswechsel ist aus der
Nachteilig an dieser Lösung ist der hohe Kostenaufwand für die Ausstattung aller Druckwerke mit Einzelantrieben, die Motoren, Antriebsregler, Drehwinkel-Lagegeber und zusätzliche elektrische Verbindungen umfassen.A disadvantage of this solution is the high cost of equipping all printing units with individual drives, which include motors, drive controllers, rotation angle position sensor and additional electrical connections.
Der Erfindung liegt daher die Aufgabe zugrunde, die Kosten für die Einzelantriebe zu reduzieren, ohne das Zeitsparpotential von Einzelantrieben bei der Durchführung von Hilfsprozessen zu vermindern.The invention is therefore based on the object to reduce the cost of the individual drives, without reducing the time-saving potential of individual drives in the implementation of auxiliary processes.
Erfindungsgemäß wird die Aufgabe durch eine Vorrichtung mit den Merkmalen des ersten Anspruchs oder ein Verfahren mit den Merkmalen des dritten Anspruchs gelöst. Der Grundgedanke der vorgeschlagenen Lösung besteht darin, die am Hilfsprozess beteiligten Rotationskörper in Abhängigkeit von ihrer Phasenlage mit Einzelantrieben auszustatten (partieller Einzelantrieb).According to the invention the object is achieved by a device having the features of the first claim or a method having the features of the third claim. The basic idea of the proposed solution is to equip the rotating bodies involved in the auxiliary process as a function of their phase position with individual drives (partial individual drive).
Indem nicht alle der für die Dauer der Hilfsprozesse zu synchronisierenden Rotationskörper mit Einzelantrieben ausgerüstet werden, sondern nur diejenigen, welche eine von einer Bezugsphasenlage (erste Phasenlage) abweichende Phasenlage aufweisen, können die Kosten für die Einzelantriebe an den Rotationskörpern mit Bezugsphasenlage eingespart werden. Die Rotationskörper mit der ersten Phasenlage werden gemeinsam vom vorhandenen Antriebsräderzug der Druckmaschine in die für den jeweiligen Hilfsprozess erforderliche Drehwinkelposition gedreht, während die übrigen Rotationskörper zeitgleich dazu von den Einzelantrieben in diese Drehwinkelposition gedreht werden.By not all of the rotation bodies to be synchronized for the duration of the auxiliary processes being equipped with individual drives, but only those which have a phase position deviating from a reference phase position (first phase position), the costs for the individual drives can be saved at the reference phase rotational bodies. The rotary bodies with the first phase position are rotated together by the existing drive wheel train of the printing press in the required rotational angle position for the respective auxiliary process, while the other rotating bodies are simultaneously rotated by the individual drives in this rotational angular position.
Die Erfindung hat den Vorteil, dass sich mit einer reduzierten Anzahl von Einzelantrieben die gleiche Zeiteinsparung wie bei vollständiger Ausstattung mit Einzelantrieben ergibt. Der größte Kostenspareffekt für die Einzelantriebskonfiguration tritt ein, wenn die Gruppe der Rotationskörper mit Bezugsphasenlage, die vom Antriebsräderzug angetrieben wird, die Gruppe mit der höchsten Anzahl von Rotationskörpern bildet.The invention has the advantage that the same time savings with a reduced number of individual drives as with complete equipment with individual drives. The largest cost saving effect for the single drive configuration occurs when the group of reference phase rotational bodies driven by the drive wheel train forms the group with the highest number of rotational bodies.
Die Erfindung soll am Beispiel einer Bogenoffset-Druckmaschine mit partiellem Einzelantrieb der Plattenzylinder näher erläutert werden. Die dazugehörigen Zeichnungen haben folgende Bedeutung:
Figur 1- schematische Darstellung einer Bogenoffset-Druckmaschine mit partiellem Einzelantrieb
- FIG. 1
- schematic representation of a sheetfed offset printing machine with partial single drive
Wie aus der Figur 1 ersichtlich, besteht die Bogenoffset-Druckmaschine aus 4 Druckwerken DW1...4, wobei von den Druckwerken nur die doppelt großen Druckzylinder und die einfach großen Gummituchzylinder GZ1..4 und Plattenzylinder PZ1..4 dargestellt sind. Alle vier Druckwerke DW1...4 werden über einen Antriebsräderzug ARZ, der durch die im Eingriff stehenden Antriebszahnräder der einzelnen Zylinder DZ1..4,GZ1...4,PZ1...4 in den Druckwerken DW1...4 und den Übergabetrommeln ÜT1...3 zwischen den Druckwerken DW1...4 gebildet wird, angetrieben. Der Antriebsmoment für den Antriebsräderzug ARZ wird in bekannter Weise von einem oder mehreren (nicht dargestellten) Hauptantrieben bereitgestellt. Zwischen den Druckwerken DW1...4 besteht eine Phasenlagendifferenz von 120°, d.h. die Gummituch- und die Plattenzylinder GZ1,GZ4,PZ1,PZ4 im ersten und vierten Druckwerk DW1,DW4 befinden sich in der gleichen Drehwinkelstellung bzw. weisen die gleiche (erste) Phasenlage auf.As can be seen from FIG. 1, the sheet-fed offset printing machine consists of 4 printing units DW1... 4, wherein only the double-sized printing cylinders and the simply large blanket cylinders GZ1..4 and plate cylinders PZ1..4 are represented by the printing units. All four printing units DW1 ... 4 are via a drive wheel ARZ, by the meshing drive gears of the individual cylinders DZ1..4, GZ1 ... 4, PZ1 ... 4 in the printing units DW1 ... 4 and the Transfer drums ÜT1 ... 3 between the printing units DW1 ... 4 is formed, driven. The drive torque for the drive wheel train ARZ is provided in known manner by one or more main drives (not shown). Between the printing units DW1 ... 4 there is a phase position difference of 120 °, i. the blanket and plate cylinders GZ1, GZ4, PZ1, PZ4 in the first and fourth printing units DW1, DW4 are in the same angular position or have the same (first) phase position.
Im Druckbetrieb (erste Betriebsart) werden die Farbauszüge im ersten und vierten Druckwerk DW1,DW4 gleichzeitig auf die Bogen übertragen, während die Druckteilbilder im zweiten Druckwerk DW2 um einen Drehwinkel von 120° versetzt zur ersten Phasenlage des ersten Druckwerkes DW1 und im dritten Druckwerk DW3 um 240° versetzt zum ersten Druckwerk DW1 auf die Bogen übertragen wird. Dementsprechend rotieren die (weiteren) Plattenzylinder PZ2,PZ3 im zweiten und dritten Druckwerk DW2,DW3 mit um 120° bzw. um 240° gegenüber dem ersten oder vierten Druckwerk DW1,DW4 versetzten (weiteren) Phasenlagen.In the printing operation (first operating mode), the color separations in the first and fourth printing units DW1, DW4 are simultaneously transferred to the sheets, while the partial printing units in the second printing unit DW2 offset by an angle of rotation of 120 ° to the first phase position of the first printing unit DW1 and the third printing unit DW3 240 ° offset to the first Printing unit DW1 is transferred to the sheet. Correspondingly, the (further) plate cylinders PZ2, PZ3 in the second and third printing units DW2, DW3 rotate with (further) phase positions offset by 120 ° or by 240 ° with respect to the first or fourth printing unit DW1, DW4.
Bei einem Wechsel des Druckauftrages müssen die Druckplatten auf allen Plattenzylindern PZ1...4 gewechselt werden. Der Plattenwechsel ist ein Hilfsprozess (zweite Betriebsart), bei dem die Plattenzylinder PZ1...4 in eine bestimmte, in allen Druckwerken DW1...4gleiche Drehwinkeiposition des mit Plattenklemmvorrichtungen ausgestatteten Zylinderkanals verdreht werden müssen, damit das Entfernen der alten Druckplatte und das Aufziehen der neuen Druckplatte ohne größeren manuellen Aufwand durchgeführt werden kann.When changing the print job, the printing plates on all plate cylinders PZ1 ... 4 must be changed. The plate change is an auxiliary process (second mode) in which the plate cylinder PZ1 ... 4 in a certain, in all printing units DW1 ... 4 same Drehwinkeiposition the equipped with Plattenklemmvorrichtungen cylinder channel must be rotated so that the removal of the old printing plate and the mounting the new printing plate can be performed without major manual effort.
Wenn alle Plattenzylinder PZ1...4 in konventioneller Weise vom Antriebsräderzug ARZ angetrieben werden, muss der Antriebsräderzug ARZ zunächst in die gemeinsame Plattenwechselposition des ersten und vierten Druckwerkes DW1,DW4 gedreht werden. Nach Abschluss des Plattenwechselvorganges wird der Antriebsräderzug ARZ um 120° weitergedreht bis in die Plattenwechselposition des Plattenzylinders PZ2 im zweiten Druckwerk DW2. Ist der Plattenwechsel auch dort vollzogen, wird der Antriebsräderzug ARZ um weitere 120° gedreht bis in die Plattenwechselposition des dritten Druckwerkes DW3. Eine konventionelle 4-Werke-Druckmaschine benötigt somit drei Zyklen für einen kompletten Plattenwechsel.When all the plate cylinders PZ1 ... 4 are conventionally driven by the drive wheel train ARZ, the drive wheel train ARZ must first be rotated to the common disk change position of the first and fourth printing units DW1, DW4. After completion of the plate changing process, the drive wheel ARZ is further rotated by 120 ° to the plate change position of the plate cylinder PZ2 in the second printing unit DW2. If the plate change is completed there, the drive wheel ARZ is rotated by a further 120 ° to the plate changing position of the third printing unit DW3. A conventional 4-works press thus requires three cycles for a complete plate change.
Eine vollständig mit Plattenzylinder-Einzelantrieben ausgestattete 4-Werke-Druckmaschine benötigt dagegen nur einen Plattenwechselzyklus, weil alle Plattenzylinder unabhängig vom Antriebsräderzug und gleichzeitig in die Plattenwechselposition gedreht werden können, erfordert aber den Investitionsaufwand für 4 Einzelantriebe. Erfindungsgemäß wird bei der beispielhaften 4-Werke-Druckmaschine lediglich den (weiteren) Plattenzylindern PZ2,PZ3 am zweiten und dritten Druckwerk DW2,DW3 jeweils ein Einzelantrieb M1,M2 zugeordnet, wodurch der Investitionsaufwand im Vergleich zu einer vollständig mit Einzelantrieben ausgestatteten Druckmaschine auf 50% reduziert werden kann.On the other hand, a 4-plate press equipped with single plate cylinder drives requires only one plate change cycle because all plate cylinders can be rotated independently of the drive gear train and simultaneously into the plate change position, but requires the investment of 4 individual drives. According to the invention, only the (further) plate cylinders PZ2, PZ3 on the second and third printing units DW2, DW3 are each assigned a single drive M1, M2 in the exemplary 4-for-press, which reduces the capital outlay to 50% compared to a press fully equipped with individual drives. can be reduced.
Die Plattenzylinder PZ1,PZ4 im ersten und vierten Druckwerk DW1,DW4 bleiben im Antriebsräderzug ARZ eingebunden, da sie eine übereinstimmende Phasenlage aufweisen und keine separate Verdrehbarkeit erfordern. Die übereinstimmende Phasenlage wird als Bezugs- oder erste Phasenlage und die vom Antriebsräderzug ARZ angetriebenen Plattenzylinder PZ1,PZ4 werden in analoger Weise als erste Rotationskörper bezeichnet.The plate cylinders PZ1, PZ4 in the first and fourth printing units DW1, DW4 remain integrated in the drive wheel train ARZ, since they have a matching phase position and do not require separate twistability. The coincident phase position is referred to as a reference or first phase position and the plate cylinder PZ1, PZ4 driven by the drive wheel train ARZ are referred to as first rotation bodies in an analogous manner.
Die in erfindungsgemäßer Weise mit nur zwei Einzelantrieben M1,M2 ausgestattete Druckmaschine benötigt ebenfalls nur einen Plattenwechselzyklus. Während die (ersten) Plattenzylinder PZ1,PZ4 im ersten und vierten Druckwerk DW1,DW4 gemeinsam vom Antriebsräderzug ARZ in die Plattenwechselposition gedreht werden, werden die (weiteren) Plattenzylinder PZ2,PZ3 im zweiten und dritten Druckwerk DW2,DW3 parallel dazu durch die zugeordneten Einzelantriebe M1,M2 von ihren (weiteren) Phasenlagen in die erste Phasenlage der vom Antriebsräderzug ARZ bewegten Plattenzylinder PZ1,PZ4 gedreht, bis alle Plattenzylinder PZ1...4 annähernd zum gleichen Zeitpunkt die gemeinsame Plattenwechselposition erreicht haben. Dabei können die weiteren Plattenzylinder PZ2,PZ3 zunächst in einer "Einholbewegung" in die erste Phasenlage der Plattenzylinder PZ1,PZ4 im ersten und vierten Druckwerk DW1,DW4 gedreht werden und danach alle Plattenzylinder PZ1...4 mit synchronisierter Phasenlage in die Plattenwechselposition rotieren. Es ist ebenso möglich, dass zur Verkürzung der Plattenwechselzeit die einzeln angetriebenen Plattenzylinder PZ2,PZ3 unabhängig voneinander und zunächst unabhängig von der Phasenlage der vom Antriebsräderzug ARZ angetriebenen Plattenzylinder PZ1,PZ4 auf dem jeweils kürzesten Weg in die Plattenwechselposition gedreht werden und zeitlich synchronisiert mit den ersten Plattenzylindern PZ1,PZ2 die Plattenwechselposition erreichen. In beiden Fällen werden die Drehbewegungen der einzeln angetriebenen Plattenzylinder PZ2,PZ3 mit den Drehbewegungen der ersten Rotationskörpern PZ1,PZ4 bzw. des Antriebsräderzuges ARZ synchronisiert, so dass beispielsweise die gemeinsame Drehwinkelposition zum Plattenwechsel annähernd gleichzeitig von allen Rotationskörpern PZ1...PZ4 erreicht wird.The in accordance with the invention with only two single drives M1, M2 equipped press also requires only a disc change cycle. While the (first) plate cylinder PZ1, PZ4 in the first and fourth printing unit DW1, DW4 jointly from Drive wheel ARZ are rotated in the disk change position, the (further) plate cylinder PZ2, PZ3 in the second and third printing DW2, DW3 parallel to it by the associated individual drives M1, M2 of their (further) phase angles in the first phase position of the drive wheel ARZ moving plate cylinder PZ1, PZ4 turned until all plate cylinders PZ1 ... 4 have reached the common plate change position at approximately the same time. In this case, the further plate cylinders PZ2, PZ3 can first be rotated in a "catch-up movement" into the first phase position of the plate cylinders PZ1, PZ4 in the first and fourth printing units DW1, DW4 and then rotate all the plate cylinders PZ1 ... 4 with synchronized phase position in the plate changing position. It is also possible that, in order to shorten the plate changing time, the individually driven plate cylinders PZ2, PZ3 are rotated independently of each other and initially independent of the phase position of the plate cylinder PZ1, PZ4 driven by the drive wheel train ARZ on the shortest path to the plate changing position and synchronized in time with the first Plate cylinders PZ1, PZ2 reach the plate change position. In both cases, the rotational movements of the individually driven plate cylinders PZ2, PZ3 are synchronized with the rotational movements of the first rotational bodies PZ1, PZ4 or the drive wheel train ARZ, so that, for example, the common rotational angular position for plate change is achieved approximately simultaneously by all rotational bodies PZ1... PZ4.
Bei Deaktivierung der zweiten Betriebsart, d.h. im Beispiel bei Beendigung des Plattenwechsels und Übergang zum Druckbetrieb, werden die weiteren Rotationskörper PZ2,PZ3 in ihre ursprünglichen Phasenlagen für die erste Betriebsart zurückgedreht und wieder mit dem Antriebsräderzug ARZ synchronisiert.Upon deactivation of the second mode, i. in the example at the end of the plate change and transition to the printing operation, the further rotational body PZ2, PZ3 are rotated back into their original phase positions for the first mode and synchronized again with the drive wheel train ARZ.
Die separate Drehbarkeit der Plattenzylinder PZ2,PZ3 ist in der Zeichnung symbolisch durch den fehlenden Kontakt der Zylinderkonturen mit den benachbarten Gummizylindern GZ2,GZ3 dargestellt.The separate rotation of the plate cylinder PZ2, PZ3 is shown symbolically in the drawing by the lack of contact of the cylinder contours with the adjacent rubber cylinders GZ2, GZ3.
Gegenüber der Variante des Einzelantriebes aller Plattenzylinder PZ1...4 wird mit dem partiellen Einzelantrieb der gleiche Effekt, nämlich die Einsparung der Zeit von zwei Plattenwechselzyklen, bei halbem Kostenaufwand erreicht. Ähnlich deutliche Vorteile sind bei anderen Maschinenkonfigurationen zu erzielen, z.B. bei einer Bogenwendeeinrichtung nach dem ersten Druckwerk oder bei einer 5-Farben-Druckmaschine, bei denen jeweils die Investition in einen einzigen Plattenzylinder-Einzelantrieb ausreicht, um die Zeit eines Plattenwechselzyklus einzusparen.Compared to the variant of the single drive of all plate cylinders PZ1 ... 4 is achieved with the partial single drive the same effect, namely the saving of the time of two plate change cycles, at half cost. Similar distinct advantages can be achieved in other machine configurations, e.g. in a sheet turning device after the first printing unit or in a 5-color printing press, in each case the investment in a single plate cylinder single drive is sufficient to save the time of a plate change cycle.
Die erfindungsgemäße Konfiguration von Druckmaschinen mit Einzelantrieben ist auf alle Rotationskörper anwendbar, die temporär phasengleiche Bewegungen ausführen.The configuration according to the invention of single-drive printing machines is applicable to all rotary bodies that temporarily perform in-phase movements.
Ebenso liegt die Kopplung der Einzelantriebe M1,M2 für die Plattenzylinder PZ2,PZ3 auch mit den zugeordneten Gummituchzylindern GZ2,GZ3 zur synchronisierten Durchführung anderer Hilfsprozesse, beispielsweise von Waschprozessen, im Rahmen der Erfindung. Die Synchronisierung der Einzelantriebe M1,M2 erfolgt in bekannter Weise über (nicht dargestellte) Drehwinkelgeber an den einzeln angetriebenen Rotationskörpern (Plattenzylinder PZ2,PZ3) und zugeordnete Drehwinkelgeber beispielsweise an benachbarten Rotationskörpern, die über den Antriebsräderzug ARZ bewegt werden (im Beispiel an den Gummituchzylindern GZ2,GZ3), wobei die Drehwinkelsignale von (nicht dargestellten) Antriebsreglern verarbeitet werden, die die Synchronisierung mit dem Antriebsräderzug ARZ ausführen.Likewise, the coupling of the individual drives M1, M2 for the plate cylinder PZ2, PZ3 with the associated blanket cylinders GZ2, GZ3 for the synchronized implementation of other auxiliary processes, such as washing processes, within the scope of the invention. The synchronization of the individual drives M1, M2 takes place in a known manner via (not shown) rotary encoder on the individually driven bodies of revolution (plate cylinder PZ2, PZ3) and associated rotary encoder, for example, adjacent rotational bodies, which are moved over the drive wheel ARZ (in the example on the blanket cylinders GZ2 , GZ3), wherein the rotation angle signals are processed by drive controllers (not shown) which synchronize with the drive wheel train ARZ.
Durch die Reduzierung der Anzahl von Einzelantrieben wird das Antriebssteuersystem vereinfacht und von Synchronisierungsaufgaben entlastet, so dass kürzere Reaktionszeiten und geringere Schwingungsneigung bei längeren Maschinen mit einer höheren Anzahl an Druckwerken erreicht werden.By reducing the number of individual drives, the drive control system is simplified and relieved of synchronization tasks, so that shorter response times and lower vibration tendency can be achieved with longer machines with a higher number of printing units.
Aufstellung der verwendeten Bezugszeichen
- DW1..4
- Druck- oder Lackwerke
- DZ1..4
- Druckzylinder
- GZ1...4
- Gummituchzylinder
- PZ1...4
- Plattenzylinder
- ÜT1...3
- Übergabetrommeln
- ARZ
- Antriebsräderzug
- M1,M2
- Einzelantriebe
- DW1..4
- Printing or coating plants
- DZ1..4
- pressure cylinder
- GZ1 ... 4
- Blanket cylinder
- PZ1 ... 4
- plate cylinder
- ÜT1 ... 3
- Transfer drums
- ARZ
- drive wheel
- M1, M2
- individual drives
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510019539 DE102005019539A1 (en) | 2005-04-27 | 2005-04-27 | Method and device for driving rotational bodies of a printing machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1717027A2 true EP1717027A2 (en) | 2006-11-02 |
| EP1717027A3 EP1717027A3 (en) | 2012-02-15 |
| EP1717027B1 EP1717027B1 (en) | 2013-02-27 |
Family
ID=36691616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20060007942 Expired - Fee Related EP1717027B1 (en) | 2005-04-27 | 2006-04-15 | Process and device for driving rotary bodies in a printing press |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1717027B1 (en) |
| DE (1) | DE102005019539A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009028658A1 (en) | 2008-08-20 | 2010-04-15 | Manroland Ag | Method for controlling processing machine for sheet material, involves operating single cylinder and drum by common gear train of driving motor of main drive together with assigned machine control for printing substrate transport |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19623224C1 (en) | 1996-06-11 | 1997-09-11 | Roland Man Druckmasch | Offset printing machine operating drive |
| DE19903869A1 (en) | 1999-02-01 | 2000-08-03 | Siemens Ag | Drive control for sheet fed printing press |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223583B4 (en) * | 1992-07-17 | 2005-02-24 | Heidelberger Druckmaschinen Ag | Method for driving the plate change in a sheet-fed press and drive for performing the method |
| DE19640649A1 (en) * | 1996-10-02 | 1998-04-16 | Roland Man Druckmasch | Drive for a sheet printing machine |
| US6345574B1 (en) * | 2000-05-17 | 2002-02-12 | Heidelberger, Druckmaschinen Ag | Printing unit arrangement in a web-fed rotary printing press |
| DE10046368C2 (en) * | 2000-09-20 | 2003-02-06 | Koenig & Bauer Ag | Drive a printing unit |
| DE10046366C2 (en) * | 2000-09-20 | 2002-11-14 | Koenig & Bauer Ag | Drive a printing unit |
| DE10222003A1 (en) * | 2002-05-17 | 2003-12-04 | Koenig & Bauer Ag | Method and device for changing printing plates |
| DE10257282A1 (en) * | 2002-12-07 | 2004-06-24 | Koenig & Bauer Ag | Process for the flying change of printing plates in sheet-fed offset rotary printing machines |
-
2005
- 2005-04-27 DE DE200510019539 patent/DE102005019539A1/en not_active Withdrawn
-
2006
- 2006-04-15 EP EP20060007942 patent/EP1717027B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19623224C1 (en) | 1996-06-11 | 1997-09-11 | Roland Man Druckmasch | Offset printing machine operating drive |
| DE19903869A1 (en) | 1999-02-01 | 2000-08-03 | Siemens Ag | Drive control for sheet fed printing press |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1717027B1 (en) | 2013-02-27 |
| DE102005019539A1 (en) | 2006-11-09 |
| EP1717027A3 (en) | 2012-02-15 |
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