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EP0578161B1 - Printing element for a rotary printing machine with a plurality of carriages for a cylinder - Google Patents

Printing element for a rotary printing machine with a plurality of carriages for a cylinder Download PDF

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Publication number
EP0578161B1
EP0578161B1 EP93110692A EP93110692A EP0578161B1 EP 0578161 B1 EP0578161 B1 EP 0578161B1 EP 93110692 A EP93110692 A EP 93110692A EP 93110692 A EP93110692 A EP 93110692A EP 0578161 B1 EP0578161 B1 EP 0578161B1
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EP
European Patent Office
Prior art keywords
printing
carriage
printing element
cylinder
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93110692A
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German (de)
French (fr)
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EP0578161A1 (en
Inventor
Mario Forno
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Officine Meccaniche Giovanni Cerutti SpA
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Officine Meccaniche Giovanni Cerutti SpA
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Publication of EP0578161A1 publication Critical patent/EP0578161A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/18—Auxiliary devices for exchanging forme cylinders

Definitions

  • the above invention relates to a printing element for a rotary printing press which is equipped with a plurality of carriages, each carriage accommodating a printing cylinder.
  • a printing element for a rotary printing press which is equipped with a plurality of carriages, each carriage accommodating a printing cylinder.
  • Such a device is described for example in the document FR-A-2637222.
  • this object is achieved by a pressure element which receives a plurality of printing cylinder receiving carriages in the working position and is characterized in that the pressure roller, with which the paper web is pressed against a printing cylinder which is rotating, is received at each end by a movable carriage which, in its position is adjustable in a vertical plane and that each carriage is received by a carriage which is adjustable in its position along horizontal guide rails which are connected to the side parts of the pressure element.
  • the second pressure cylinder carriage for the prepares the following printing process in such a way that the second printing cylinder is already set in rotary motion in order to achieve the rotary speed necessary for future production.
  • the ink application device is processed and the doctor device is adjusted.
  • the pressing roller which can be moved in a vertical plane, is lifted, and at the same time the carriage moves horizontally, which picks up the pressing roller until it is above it Printing cylinder of the second carriage is located. This is followed by a carriage travel in order to press the paper web again against the second printing cylinder which is available for the new printing process by the pressure roller.
  • the first receiving carriage of the printing cylinder which is no longer in use, can be moved out of the printing element and replaced by a third receiving carriage for a printing cylinder, which is already equipped for printing a subsequent edition.
  • the pressure element which is identified overall by 1, has a recess 2 in the lower part which accommodates trolleys 4 and 5, which are equipped with rollers 6 and 7, using precision guides.
  • Each carriage is equipped with a printing cylinder 8 or 9, as well as with an ink application device 10 or 11 and a doctor device 12 or 13.
  • parallel guide rails are provided on both side parts of the pressure element 1, above the recess 2 for receiving the carriages 4 and 5 of the pressure cylinders 8, 9, which are identified overall by 30.
  • the guide rails 30 are arranged horizontally and receive a movable carriage 31 which is operatively connected to a precision drive spindle 32, advantageously a ball screw, in order to enable the carriage 31 to be moved and positioned with high accuracy.
  • the spindle 32 is driven by a motor 33, advantageously a controllable direct current motor.
  • the carriage 31 could also be moved with the aid of one or more piston-cylinder units, which for this purpose are operatively connected to the movable carriage and the frame of the machine. In this case, the exact position of the carriage 31 is accomplished with the aid of stops, stops which are advantageously adjustable in their position.
  • a dancer roll 1 is also provided, which is pivotally mounted in order to compensate for the train on which the paper web 39 is set during the movement of the carriage 31 along the guide rails 30.
  • Each carriage 31 has vertically arranged slide rails 34 and 35, which form precise parallel guides for a carriage 36 which receives a pressure roller 40 and rollers 37 and 38 for guiding the paper web 39.
  • the paper web 39 is pressed in a known manner against the assigned printing cylinder or 9.
  • the upper part of the carriage 31 receives a drive motor 41, advantageously a controllable motor which drives a threaded spindle 43 via an angular drive 42, which is operatively connected to the body of the carriage 36.
  • a drive motor 41 advantageously a controllable motor which drives a threaded spindle 43 via an angular drive 42, which is operatively connected to the body of the carriage 36.
  • the threaded spindle 43 is connected, with the interposition of a connecting piece 44, to a piston-cylinder unit 45, by means of which the slide 36 can be quickly set into a lifting or lowering movement.
  • Each side part of the pressure element designated 1 is advantageously connected to a horizontally arranged bar 46 on which stop means 47 and 48 or electrical limit switches are arranged, which serve as stops to determine the working position of the slide 31 and its movement stroke in the horizontal direction.
  • stop means 47 and 48 or electrical limit switches are arranged, which serve as stops to determine the working position of the slide 31 and its movement stroke in the horizontal direction.
  • FIG. 1 While in FIG. 1 the opening 2 of the printing element 1 is occupied by two cylinder receiving carriages 4 and 5, it can be seen from FIG. 3 that the opening 2 of the printing element is occupied only by a second printing cylinder receiving carriage 4; the first impression cylinder carriage 5 has already been extended.
  • the pressure roller 40 presses the paper web 39 onto the printing cylinder 8, and a new printing cylinder receiving carriage can be inserted into the free space 2, which carriage has already been prepared for the subsequent printing process outside the printing element 1.
  • FIG. 4 shows the device according to the invention with its essential components in longitudinal section along the line IV-IV of FIG. 2.
  • a side part of the pressure element 1 can be seen.
  • the movable slide 31 is arranged inside the pressure element 1 and can be moved along the parallel guides 30 with the aid of the spindle 32.
  • the carriage receives a controllable motor 41, which rotates the shaft 43 via an angular drive 42.
  • a lengthening rod 49 branches off from the angular drive 42 and is suitable for also driving a spindle 43 which is arranged on the second side part (not shown) of the pressure element 1.
  • the threaded spindle 43 is operatively connected by a connecting piece 44 to a piston-cylinder unit 45, and this is connected to a support 36, which is slidably arranged in the vertical direction between two parallel guide strips 34, 35.
  • the carriage 36 receives rotatably mounted rollers 37, 38 which serve to guide the paper web 39, the paper web being pressed by the pressure roller 40 against one of the two pressure cylinders 8 and 9 which are used for production.
  • the operation of the device according to the invention is as follows: When carriage 4 and 5 retracted into a pressure element 1 for receiving the pressure cylinders 8 and 9, the pressure roller is located, for example, above the first cylinder 9, which at this moment represents the working cylinder.
  • the pressure roller 40 presses the paper web 39 in motion against the printing cylinder 9.
  • the printing cylinder 8 represents a replacement cylinder which is in the waiting position and has been prepared for a subsequent printing operation.
  • the piston-cylinder unit 45 is actuated and the pressure roller 40 is raised from the printing cylinder 9 underneath, as a result of which the paper web 39 in motion is lifted off the printing cylinder 9.
  • the paper web continues its movement and, by actuating the motor 41 and by using the angular drive 42 and the drive spindle 43, the carriage is raised with the pressure roller 40, which is moved into a position 40 'in which it becomes possible to move the carriage 31 quickly along the guides 30 by actuating the ball screw 32 via the motor 33. This is until the pressure roller 40 is exactly above the second printing cylinder 8, which has in the meantime been raised to the nominal speed and the inking unit has already been prepared for the following printing process.
  • the squeegee device of the cylinder was already set and the cylinder 8 has already been rotated. In this position, which is determined by the associated end stop 48, as shown in FIG. 1, the carriage 36 and the pressure roller 40 are lowered again, which is brought into operative connection with the cylinder 8 or 8 'of the carriage 9 .
  • the printing process can be resumed after a very short time.

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

Description

Die vorstehende Erfindung betrifft ein Druckelement fuer eine Rotationsdruckmaschine, die mit mehreren Wagen ausgeruestet ist, wobei jeder Wagen einen Druckzylinder aufnimmt. Eine solche Vorrichtung wird beispielsweise in der Druckschrift FR-A-2637222 beschrieben.The above invention relates to a printing element for a rotary printing press which is equipped with a plurality of carriages, each carriage accommodating a printing cylinder. Such a device is described for example in the document FR-A-2637222.

Es ist bekannt, dass auch in Rotationsdruckmaschinen die Bestrebung besteht, die Totzeiten zu vermeiden, die z.B. aufgrund eines Maschinenstillstandes waehrend eines Austauschvorganges der Aufnahmewagen fuer die Druckzylinder waehrend des Fertigungswechsels auftreten.It is known that even in rotary printing presses there is an effort to avoid the idle times that e.g. due to a machine standstill during an exchange process, the receiving carriage for the pressure cylinders occur during the production change.

Geht man davon aus, dass die Auflagengroesse bei Druckerzeugnissen, die in einer Rotationsdruckmaschine hergestellt werden, die Tendenz hat, pro Auflage geringer zu werden, so wird verstaendlich, dass haeufige Produktionsunterbrechungen der Rotationsdruckmaschine, die fuer den Austausch der Zylinderaufnahmewagen, der Farbauftragsvorrichtung, sowie des Druckzylinders zu einer wesentlichen Zunahme der Maschinenstillstandszeiten fuehren. Es ist dem Fachmann auch bekannt, dass zum Austausch eines Aufnahmewagens fuer den Druckzylinder zusaetzliche Arbeitsvorgaenge durchzufuehren sind, die z.B. in einem Anhalten der Papierbahn oder einem Anheben der Anpressrolle zu sehen sind. Die Anpressrolle hat die Aufgabe, die Papierbahn waehrend des Druckvorganges gegen den mit einer Druckplatte versehenen Zylinder zu pressen.If one assumes that the print run size for printed products that are produced in a rotary printing press has the tendency to decrease per print run, it is understandable that frequent production interruptions of the rotary printing press, which are necessary for the exchange of the cylinder pick-up carriage, the ink application device and the Printing cylinders lead to a significant increase in machine downtimes. It is also known to the person skilled in the art that for the exchange of a Additional work operations are to be carried out for the carriage for the printing cylinder, which can be seen, for example, when the paper web is stopped or the pressure roller is raised. The pressure roller has the task of pressing the paper web against the cylinder provided with a pressure plate during the printing process.

Im Nachgang an die Ausfuehrung dieser und anderer zusaetzlicher Arbeitsvorgaenge wird es moeglich sein, den Wagen zur Aufnahme der Druckzylinders aus dem zugeordneten Druckelement zu entnehmen, um im Anschluss daran einen neuen Wagen mit einem neuen Druckzylinder einzufahren.After the execution of these and other additional work processes, it will be possible to remove the carriage for receiving the printing cylinders from the assigned printing element in order to subsequently insert a new carriage with a new printing cylinder.

Des weiteren ist es erforderlich, im voraus den Aufnahmewagen fuer die durchzufuehrenden Druckvorgaenge vorzubereiten und nach Einfahren des Wagens den neuen Druckzylinder auf die gewuenschte Arbeitsgeschwindigkeit hochzufahren, um im Anschluss daran ein Absenken der Anpressrolle vorzunehmen, um die sich in Bewegung befindliche Papierbahn auf den neuen Druckzylinder zu pressen und einen Druckvorgang fuer eine neue Auflage einzuleiten.Furthermore, it is necessary to prepare the receiving carriage in advance for the printing processes to be carried out and, after the carriage has been run in, to raise the new printing cylinder to the desired working speed, in order to then lower the pressure roller in order to move the paper web in motion onto the new printing cylinder to press and initiate a printing process for a new edition.

Um bei einem Wechsel der Auflage all die beschriebenen Vorgaenge fuer eine Vielzahl von Druckelementen durchzufuehren, ist es in der Praxis notwendig, die gesamte Rotationsdruckmaschine anzuhalten, was zu einer Stillstandzeit der Druckmaschine ueber einen laengeren Zeitraum fuehrt, demzufolge sinkt der Leistungsgrad der Druckmaschine erheblich.In order to carry out all of the described processes for a large number of printing elements when the edition is changed, in practice it is necessary to stop the entire rotary printing press, which leads to a downtime of the printing press over a longer period of time leads, consequently the efficiency of the printing machine drops considerably.

Es ist Aufgabe der vorstehenden Erfindung die Nachteile des Standes der Technik zu vermeiden und ein Druckelement vorzuschlagen, das es ermoeglicht, von der Verwendung eines Druckzylinders auf einen zweiten Druckzylinder automatisch zu wechseln, wobei dieser Vorgang ohne die Notwendigkeit einer Unterbrechung der Rotationsdruckmaschine erfolgen kann.It is an object of the above invention to avoid the disadvantages of the prior art and to propose a printing element which makes it possible to automatically switch from the use of one printing cylinder to a second printing cylinder, this process being able to be carried out without the need to interrupt the rotary printing press.

Erfindungsgemaess wird diese Aufgabe durch ein Druckelement geloest, das mehrere Druckzylinderaufnahmewagen in Arbeitsstellung aufnimmt und sich dadurch kennzeichnet, dass die Anpressrolle, mit der die Papierbahn gegen einen sich in Drehung befindlichen Druckzylinder gepresst wird, an jedem Ende von einem verfahrbaren Schlitten aufgenommen wird, der in seiner Lage einstellbar in einer vertikalen Ebene verfahrbar ist und dass jeder Schlitten von einem Wagen aufgenommen ist, der in seiner Lage einstellbar entlang waagerechter Fuehrungsschienen verfahrbar ist, die mit den Seitenteilen des Druckelements verbunden sind.According to the invention, this object is achieved by a pressure element which receives a plurality of printing cylinder receiving carriages in the working position and is characterized in that the pressure roller, with which the paper web is pressed against a printing cylinder which is rotating, is received at each end by a movable carriage which, in its position is adjustable in a vertical plane and that each carriage is received by a carriage which is adjustable in its position along horizontal guide rails which are connected to the side parts of the pressure element.

Mit einem Druckelement, das diese Merkmale aufweist, ist es moeglich, zum Bedrucken einer ersten Auflage den in einem ersten Aufnahmewagen gelagerten Druckzylinder zu verwenden.With a printing element having these features, it is possible to use the printing cylinder mounted in a first receiving carriage for printing on a first edition.

Soll die Fertigung umgestellt werden, so wird in der Maschine der zweite Druckzylinderaufnahmewagen fuer den folgenden Druckvorgang vorbereitet in der Weise, dass der zweite Druckzylinder bereits in Drehbewegung versetzt wird, um die fuer die zukuenftige Produktion notwendige Drehgeschwindigkeit zu erreichen. Gleichzeitig erfolgt ein Aufbereiten der Farbauftragsvorrichtung, ferner erfolgt ein Einstellen der Rakeleinrichtung.If the production is to be changed over, the second pressure cylinder carriage for the prepares the following printing process in such a way that the second printing cylinder is already set in rotary motion in order to achieve the rotary speed necessary for future production. At the same time, the ink application device is processed and the doctor device is adjusted.

In dem Moment, in dem der in Wartestellung angeordnete zweite Druckzylinder fuer den Druck einer neuen Auflage eingesetzt werden soll, erfolgt ein Anheben der in einer senkrechten Ebene verfahrbaren Anpressrolle, gleichzeitig erfolgt ein horizontales Verfahren des Wagens der die Anpressrolle aufnimmt, bis sich diese ueber dem Druckzylinder des zweiten Aufnahmewagens befindet. Im Anschluss daran erfolgt ein Abfahren des Schlittens, um die Papierbahn durch die Anpressrolle erneut gegen den zweiten Druck- zylinder der fuer den neuen Druckvorgang zur Verfuegung steht, zu pressen.At the moment when the second printing cylinder arranged in the waiting position is to be used for printing a new edition, the pressing roller, which can be moved in a vertical plane, is lifted, and at the same time the carriage moves horizontally, which picks up the pressing roller until it is above it Printing cylinder of the second carriage is located. This is followed by a carriage travel in order to press the paper web again against the second printing cylinder which is available for the new printing process by the pressure roller.

Waehrend dieses Fertigungswechsels, Vorgang, der mit erheblicher Geschwindigkeit erfolgt, wird die Bewegung der Papierbahn nicht unterbrochen und es tritt praktisch keine Maschinenstillstandzeit ein. Es koennen dadurch schwerwiegende technische Nachteile vermieden werden, die z.B. in einem Reissen der Papierbahn zu sehen sind, das haeufig waehrend eines Wiederhochfahrens einer Rotationsdruckmaschine eintritt.During this change in production, operation which takes place at a considerable speed, the movement of the paper web is not interrupted and there is practically no machine downtime. Serious technical disadvantages can be avoided as a result, which can be seen, for example, in a tearing of the paper web that frequently occurs during a restart of a rotary printing press.

Der erste Aufnahmewagen des Druckzylinders, der jetzt nicht mehr im Einsatz steht, kann aus dem Druckelement ausgefahren werden und durch einen dritten Aufnahmewagen fuer einen Druckzylinder, der bereits fuer den Druck einer nachfolgenden Auflage ausgeruestet ist, ersetzt zu werden.The first receiving carriage of the printing cylinder, which is no longer in use, can be moved out of the printing element and replaced by a third receiving carriage for a printing cylinder, which is already equipped for printing a subsequent edition.

Der Erfindungsgegenstand wird nun genauer beschrieben und anhand eines Ausfuehrungsbeispieles in den Zeichnungen dargestellt. Es zeigen:

  • Fig. 1 ein Druckelement in Vorderansicht, mit zwei Druckzylinderaufnahmewagen und einer Vorrichtung zum Verfahren der Anpressrolle,
  • Fig. 2 in Vorderansicht die Vorrichtung zum Verfahren der Anpressrolle in einer Zwischenstellung,
  • Fig. 3 in Vorderansicht das Druckelement mit der Anpressrolle im Zusammenwirken mit einem zweiten Zylinder, waehrend der Aufnahmewagen des ersten Zylinders bereits ausgefahren wurde,
  • Fig. 4 die Verschiebevorrichtung der Anpressrolle und den Druckzylinder im Querschnitt gemaess der Linie IV-IV der Fig. 1.
The subject matter of the invention will now be described in more detail and illustrated in the drawings using an exemplary embodiment. Show it:
  • 1 shows a pressure element in front view, with two pressure cylinder receiving carriages and a device for moving the pressure roller,
  • 2 is a front view of the device for moving the pressure roller in an intermediate position,
  • 3 is a front view of the pressure element with the pressure roller in cooperation with a second cylinder, while the receiving carriage of the first cylinder has already been extended,
  • 4 shows the displacement device of the pressure roller and the pressure cylinder in cross section along the line IV-IV of FIG. 1st

Wie der Fig. 1 zu entnehmen ist, weist das gesamthaft mit 1 gekennzeichnete Druckelement im unteren Teil eine Ausnehmung 2 auf, die unter Verwendung von Praezisionsfuehrungen 3, Wagen 4 und 5 aufnimmt, die mit Laufrollen 6 und 7 ausgeruestet sind.As can be seen in FIG. 1, the pressure element, which is identified overall by 1, has a recess 2 in the lower part which accommodates trolleys 4 and 5, which are equipped with rollers 6 and 7, using precision guides.

Jeder Wagen ist mit einem Druckzylinder 8 bzw. 9 ausgeruestet, sowie mit einer Farbauftragsvorrichtung 10 bzw. 11 und einer Rakeleinrichtung 12 bzw. 13.Each carriage is equipped with a printing cylinder 8 or 9, as well as with an ink application device 10 or 11 and a doctor device 12 or 13.

Wie schematisch in den Zeichnungen dargestellt ist, sind an beiden Seitenteilen des Druckelementes 1, ueber der Ausnehmung 2 zur Aufnahme der Wagen 4 und 5 der Druckzylinder 8, 9, parallele Fuehrungsschienen vorgesehen, die gesamthaft mit 30 gekennzeichnet sind. Die Fuehrungsschienen 30, sind horizontal angeordnet und nehmen einen verfahrbaren Wagen 31 auf, der mit einer Praezisionsantriebsspindel 32, in vorteilhafter Weise einer Kugelumlaufspindel, wirkverbunden ist, um damit ein Verfahren und Positionieren des Wagens 31 mit hoher Genauigkeit zu ermoeglichen. Die Spindel 32 wird ueber einen Motor 33, in vorteilhafter Weise einen steuerbaren Gleichstrommotor, angetrieben.As is shown schematically in the drawings, parallel guide rails are provided on both side parts of the pressure element 1, above the recess 2 for receiving the carriages 4 and 5 of the pressure cylinders 8, 9, which are identified overall by 30. The guide rails 30 are arranged horizontally and receive a movable carriage 31 which is operatively connected to a precision drive spindle 32, advantageously a ball screw, in order to enable the carriage 31 to be moved and positioned with high accuracy. The spindle 32 is driven by a motor 33, advantageously a controllable direct current motor.

Auch koennte das Verschieben des Wagens 31 unter Zuhilfenahme von einer oder mehreren Kolbenzylindereinheiten erfolgen, die zu diesem Zwecke mit dem verfahrbaren Wagen und dem Rahmen der Maschine wirkverbunden sind. In diesem Fall wird die genaue Lage des Wagens 31 unter Zuhilfenahme von Anschlaegen, in vorteilhafter Weise in ihrer Lage einstellbaren Anschlaegen, bewerkstelligt.The carriage 31 could also be moved with the aid of one or more piston-cylinder units, which for this purpose are operatively connected to the movable carriage and the frame of the machine. In this case, the exact position of the carriage 31 is accomplished with the aid of stops, stops which are advantageously adjustable in their position.

Es hat sich als vorteilhaft erwiesen, dass die mit dem Zylinder 8 bzw. dem Zylinder 9 zu bedruckende Papierbahn 39 am Einlauf des Druckelementes ueber eine Rolle 100 gefuehrt wird. In vorteilhafter Weise ist auch eine Taenzerrolle 1 vorgesehen, die verschwenkbar gelagert ist, um einen Ausgleich im Zug, dem die Papierbahn 39 aus gesetzt ist, waehrend des Verfahrens des Wagens 31 laengs der Fuehrungsschienen 30 zu ermoeglichen.It has proven to be advantageous that those with the Cylinder 8 or the paper web 39 to be printed on cylinder 9 is guided over a roller 100 at the inlet of the printing element. In an advantageous manner, a dancer roll 1 is also provided, which is pivotally mounted in order to compensate for the train on which the paper web 39 is set during the movement of the carriage 31 along the guide rails 30.

Jeder Wagen 31 weist senkrecht angeordnete Gleitschienen 34 und 35 auf, die praezise Parallelfuehrungen fuer einen Schlitten 36 bilden, der eine Anpressrolle 40 sowie Rollen 37 und 38 fuer die Fuehrung der Papierbahn 39 aufnimmt.Each carriage 31 has vertically arranged slide rails 34 and 35, which form precise parallel guides for a carriage 36 which receives a pressure roller 40 and rollers 37 and 38 for guiding the paper web 39.

Unter Zuhilfenahme der Anpressrolle 40 wird die Papierbahn 39 in bekannter Weise gegen den zugeordneten Druckzylinder bzw. 9 gepresst.With the aid of the pressure roller 40, the paper web 39 is pressed in a known manner against the assigned printing cylinder or 9.

Das Oberteil des Wagens 31 nimmt einen Antriebsmotor 41 auf, in vorteilhafter Weise einen steuerbaren Motor, der ueber einen Winkeltrieb 42 eine Gewindespindel 43 antreibt, die mit dem Koerper des Schlittens 36 wirkverbunden ist.The upper part of the carriage 31 receives a drive motor 41, advantageously a controllable motor which drives a threaded spindle 43 via an angular drive 42, which is operatively connected to the body of the carriage 36.

Die Gewindespindel 43 ist unter Zwischenschaltung eines Verbindungsstueckes 44 mit einer Kolbenzylindereinheit 45 verbunden, durch die der Schlitten 36 rasch in eine Hub- bzw. Absenkbewegung versetzt werden kann.The threaded spindle 43 is connected, with the interposition of a connecting piece 44, to a piston-cylinder unit 45, by means of which the slide 36 can be quickly set into a lifting or lowering movement.

In vorteilhafter Weise ist jedes Seitenteil des mit 1 bezeichneten Druckelements mit einer horizontal angeordneten Leiste 46 verbunden, auf der Anschlagmittel 47 und 48 oder elektrische Endschalter angeordnet sind, die als Anschlaege dienen, um die Arbeitslage des Schlittens 31 und dessen Bewegungshub in horizontaler Richtung festzulegen. Somit kann mit Genauigkeit eine bestimmte Lage des Schlittens und damit der Anpressrolle 40 gegenueber dem Druckzylinder 8 oder 9, der fuer den Druckvorgang Verwendung findet, eingestellt werden.Each side part of the pressure element designated 1 is advantageously connected to a horizontally arranged bar 46 on which stop means 47 and 48 or electrical limit switches are arranged, which serve as stops to determine the working position of the slide 31 and its movement stroke in the horizontal direction. Thus, a certain position of the carriage and thus the pressure roller 40 can be set with accuracy in relation to the printing cylinder 8 or 9, which is used for the printing process.

Waehrend in Fig. 1 die Oeffnung 2 des Druckelementes 1 von zwei Zylinderaufnahmewagen 4 und 5 besetzt wird, kann der Fig. 3 entnommen werden, dass die Oeffnung 2 des Druckelementes nur von einem zweiten Druckzylinderaufnahmewagen 4 besetzt ist; der erste Druckzylinderaufnahmewagen 5 wurde bereits ausgefahren.While in FIG. 1 the opening 2 of the printing element 1 is occupied by two cylinder receiving carriages 4 and 5, it can be seen from FIG. 3 that the opening 2 of the printing element is occupied only by a second printing cylinder receiving carriage 4; the first impression cylinder carriage 5 has already been extended.

In dieser Lage drueckt die Anpressrolle 40 die Papierbahn 39 auf den Druckzylinder 8, und in den freien Raum 2 kann ein neuer Druckzylinderaufnahmewagen eingefahren werden, der bereits ausserhalb des Druckelements 1 fuer den nachfolgenden Druckvorgang vorbereitet wurde.In this position, the pressure roller 40 presses the paper web 39 onto the printing cylinder 8, and a new printing cylinder receiving carriage can be inserted into the free space 2, which carriage has already been prepared for the subsequent printing process outside the printing element 1.

Der Fig. 3 kann entnommen werden, dass es moeglich ist, die Anpressrolle 40 sowohl mit einem Druckzylinder 8 in Wirkverbindung zu bringen, der groesseren Durchmesser aufweist, oder durch weiteres Absenken der Rolle 40 (wie gestrichelt dargestellt ist) kann diese auch in Arbeitskontakt mit einem Zylinder 8', der kleineren Durchmesser aufweist, gebracht werden.3 that it is possible to bring the pressure roller 40 into operative connection with a pressure cylinder 8, which has a larger diameter, or by further lowering the roller 40 (as shown in dashed lines), this can also be in working contact with a cylinder 8 ', which has a smaller diameter.

Fig. 4 zeigt die erfindungsgemaesse Vorrichtung mit ihren wesentlichen Bauteilen im Laengsschnitt gemaess der Linie IV-IV der Fig. 2.FIG. 4 shows the device according to the invention with its essential components in longitudinal section along the line IV-IV of FIG. 2.

Es ist ein Seitenteil des Druckelementes 1 erkennbar. Im Inneren des Druckelements 1 ist der verfahrbare Schlitten 31 angeordnet, der unter Zuhilfenahme der Spindel 32 laengs der Parallelfuehrungen 30 verfahrbar ist. An der Oberseite nimmt der Wagen einen steuerbaren Motor 41 auf, der ueber einen Winkeltrieb 42 die Welle 43 in Drehbewegung versetzt.A side part of the pressure element 1 can be seen. The movable slide 31 is arranged inside the pressure element 1 and can be moved along the parallel guides 30 with the aid of the spindle 32. At the top, the carriage receives a controllable motor 41, which rotates the shaft 43 via an angular drive 42.

Wie der Zeichnung zu entnehmen ist, zweigt vom Winkeltrieb 42 eine Verlaengerungsstange 49 ab, die geeignet ist, auch eine Spindel 43 anzutrieben, die am zweiten Seitenteil (nicht dargestellt), des Druckelementes 1 angeordnet ist.As can be seen in the drawing, a lengthening rod 49 branches off from the angular drive 42 and is suitable for also driving a spindle 43 which is arranged on the second side part (not shown) of the pressure element 1.

Die Gewindespindel 43 steht durch ein Verbindungsstueck 44 mit einer Kolben-Zylindereinheit 45 in Wirkverbindung, und diese ist mit einem Auflager 36 verbunden, das verschiebbar in Vertikalrichtung zwischen zwei parallelen Fuehrungsleisten 34, 35 angeordnet ist.The threaded spindle 43 is operatively connected by a connecting piece 44 to a piston-cylinder unit 45, and this is connected to a support 36, which is slidably arranged in the vertical direction between two parallel guide strips 34, 35.

Der Schlitten 36 nimmt drehbar gelagerte Rollen 37, 38 auf, die zur Fuehrung der Papierbahn 39 dienen, wobei die Papierbahn durch die Anpressrolle 40 gegen einen der zwei Druckzylinder 8 bzw. 9, die fuer die Fertigung im Einsatz stehen, angepresst wird.The carriage 36 receives rotatably mounted rollers 37, 38 which serve to guide the paper web 39, the paper web being pressed by the pressure roller 40 against one of the two pressure cylinders 8 and 9 which are used for production.

Die Arbeitsweise der erfindungsgemaessen Vorrichtung ist folgende:
Bei in ein Druckelement 1 eingefahrenem Wagen 4 und 5 zur Aufnahme der Druckzylinder 8 und 9, befindet sich die Anpressrolle, z.B. ueber dem ersten Zylinder 9, der in diesem Moment den Arbeitszylinder darstellt. Die Anpressrolle 40 drueckt die sich in Bewegung befindliche Papierbahn 39 gegen den Druckzylinder 9. Der Druckzylinder 8 stellt einen Ersatzzylinder dar, der sich in Wartestellung befindet und fuer einen folgenden Druckvorgang vorbereitet wurde.The operation of the device according to the invention is as follows:
When carriage 4 and 5 retracted into a pressure element 1 for receiving the pressure cylinders 8 and 9, the pressure roller is located, for example, above the first cylinder 9, which at this moment represents the working cylinder. The pressure roller 40 presses the paper web 39 in motion against the printing cylinder 9. The printing cylinder 8 represents a replacement cylinder which is in the waiting position and has been prepared for a subsequent printing operation.

Sobald ein Produktionswechsel erfolgen soll, wird die Kolbenzylindereinheit 45 betaetigt und die Anpressrolle 40 vom darunterliegenden Druckzylinder 9 angehoben, wodurch sich die in Bewegung befindliche Papierbahn 39 vom Druckzylinder 9 abhebt. Die Papierbahn setzt ihre Bewegung staendig fort und, durch Betaetigen des Motors 41 und durch Einsatz des Winkeltriebes 42 sowie der Antriebsspindel 43, erfolgt ein Anheben des Schlittens mit der Anpressrolle 40, die in eine Position 40' verfahren wird, in der es moeglich wird, den Wagen 31 schnell entlang der Fuehrungen 30 durch Betaetigen der Kugelumlaufspindel 32 ueber den Motor 33 zu verfahren. Dies bis sich die Anpressrolle 40 genau ueber dem zweiten Druckzylinder 8 befindet, der in der Zwischenzeit auf Nenndrehzahl hochgefahren wurde, und dessen Farbwerk bereits fuer den folgenden Druckvorgang vorbereitet wurde. Die Rakeleinrichtung des Zylinders wurde bereits eingestellt und der Zylinder 8 wurde bereits in Drehbewegung versetzt. In dieser Stellung, die durch den zugeordneten Endanschlag 48, wie in Fig. 1 dargestellt ist, festgelegt wird, erfolgt ein erneutes Absenken des Schlittens 36 und der Anpressrolle 40, diese wird mit dem Zylinder 8 bzw. 8' des Wagens 9 in Wirkverbindung gebracht.As soon as a production change is to take place, the piston-cylinder unit 45 is actuated and the pressure roller 40 is raised from the printing cylinder 9 underneath, as a result of which the paper web 39 in motion is lifted off the printing cylinder 9. The paper web continues its movement and, by actuating the motor 41 and by using the angular drive 42 and the drive spindle 43, the carriage is raised with the pressure roller 40, which is moved into a position 40 'in which it becomes possible to move the carriage 31 quickly along the guides 30 by actuating the ball screw 32 via the motor 33. This is until the pressure roller 40 is exactly above the second printing cylinder 8, which has in the meantime been raised to the nominal speed and the inking unit has already been prepared for the following printing process. The squeegee device of the cylinder was already set and the cylinder 8 has already been rotated. In this position, which is determined by the associated end stop 48, as shown in FIG. 1, the carriage 36 and the pressure roller 40 are lowered again, which is brought into operative connection with the cylinder 8 or 8 'of the carriage 9 .

Somit kann nach kuerzester Zeit eine Wiederaufnahme des Druckvorganges erfolgen.Thus, the printing process can be resumed after a very short time.

Im Anschluss daran ist es moeglich, den ersten Druckzylinderaufnahmewagen 5 aus dem Druckelement auszufahren, um in den freien Raum 2 einen neuen Druckzylinderaufnahmewagen einzufahren, der in Wartestellung verbleibt und fuer die Produktion einer folgenden Auflage zum Einsatz kommen wird.Subsequently, it is possible to extend the first printing cylinder receiving carriage 5 out of the printing element in order to drive a new printing cylinder receiving carriage into the free space 2, which remains in the waiting position and will be used for the production of a subsequent edition.

Wird beabsichtigt, erneut den Drukvorgang auf eine neue Auflage einzustellen, so erfolgen die Anhebe-, Verfahr- und Absenkvorgaenge der Anpressrolle 40 in entgegengesetzter Weise wie im Vorangegangenen beschrieben.If it is intended to set the printing process again on a new edition, the lifting, moving and lowering processes of the pressure roller 40 take place in the opposite manner to that described in the preceding.

Claims (7)

  1. Printing element (1) for a rotary printing machine for receiving a plurality of carriages (4, 5) for the mounting of impression cylinders (8, 9) which are arranged in the working position, the pressure roller (40), by which the paper web (39) is pressed against a rotating impression cylinder (8, 9), being received at each end by a movable slide (36), and the slide (36) being movable adjustably in a vertical plane, characterized in that the slide (36) received by a carriage (31) which is displaceable on horizontal guides (30) and is adjustable in its position, and the guides (30) are connected to the side parts of the printing element (1).
  2. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that each side part of the printing element (1) is equipped with horizontal parallel guides (30) which receive a carriage (31) connected to a drive spindle (32) which can be driven via a controllable motor (33).
  3. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that each carriage (31) is equipped with vertically arranged guide strips (34, 35) which form a precision guide for a slide (36) which receives rollers (37, 38) for guiding the paper web (39), and in that between the guide rollers (37, 38) is provided a pressure roller (40) which presses the paper web (39) against the impression cylinder (8, 9) used for the printing operation.
  4. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that the carriage (31) has a controllable drive motor (41) acting on a threaded spindle (43) which is connected operatively to the slide (36).
  5. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that the drive spindle (43) is connected operatively, with a rotatable connection piece (44) interposed, to a piston/cylinder unit (45) which is connected operatively to the slide (36).
  6. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that each side part of the printing element (1) is equipped with a horizontally arranged strip (46) having stops (47, 48) of adjustable position which serve as stops for the slide (36), in order to fix the exact working position of the impression cylinder (40).
  7. Printing element for a rotary printing machine according to Patent Claim 1, characterized in that the paper web (39) is guided by a roller (100) at the entrance of the printing element (1), and the guide roller (100) is assigned a pivotably mounted dancing roller (101).
EP93110692A 1992-07-10 1993-07-05 Printing element for a rotary printing machine with a plurality of carriages for a cylinder Expired - Lifetime EP0578161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921684 1992-07-10
ITMI921684A IT1255333B (en) 1992-07-10 1992-07-10 PRINTING ELEMENT FOR A ROTARY MACHINE, EQUIPPED WITH MORE TROLLEYS SUPPORTING A PRINT CYLINDER

Publications (2)

Publication Number Publication Date
EP0578161A1 EP0578161A1 (en) 1994-01-12
EP0578161B1 true EP0578161B1 (en) 1996-03-06

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Application Number Title Priority Date Filing Date
EP93110692A Expired - Lifetime EP0578161B1 (en) 1992-07-10 1993-07-05 Printing element for a rotary printing machine with a plurality of carriages for a cylinder

Country Status (5)

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US (1) US5347926A (en)
EP (1) EP0578161B1 (en)
JP (1) JPH06155705A (en)
DE (1) DE59301772D1 (en)
IT (1) IT1255333B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507819C2 (en) * 1994-02-09 1998-07-20 Tetra Laval Holdings & Finance Printing plant for a rotary printing press with cylinders arranged vertically and rotatably in a separate frame
US5816152A (en) * 1997-09-02 1998-10-06 Delaware Capital Formation, Inc. Reconfigurable printing press
DE10008215B4 (en) * 2000-02-23 2013-03-28 Manroland Web Systems Gmbh Printing unit for a rotary printing press with cross slide
US6802252B1 (en) * 2000-05-17 2004-10-12 Claudio Maggio Automatic device for replacing printing cartridges in a gravure printing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647613A (en) * 1900-01-01
US2790384A (en) * 1953-05-14 1957-04-30 Druckmaschinenwerk Victoria Ve Making-ready machines
FR1596546A (en) * 1968-08-02 1970-06-22
US3625145A (en) * 1969-06-05 1971-12-07 Bobst Champlain Inc Cylinder cart for exchanging cylinders on the fly
FR2527519A1 (en) * 1982-05-25 1983-12-02 Chambon Machines OFFSET PRINTING APPARATUS WITH VARIABLE FORMAT
IT1204804B (en) * 1986-02-17 1989-03-10 Cerutti Spa Off Mec ADDITIONAL PRINTING UNIT OF THE FLEXOGRAPHIC TYPE
DE3733375A1 (en) * 1987-10-02 1989-04-13 Metronic Geraetebau FLEXO PRINTING UNIT
JPH0215564A (en) * 1988-07-01 1990-01-19 Nkk Corp Electrode members of solid oxide fuel cells and solid oxide fuel cells
IT1225200B (en) * 1988-10-05 1990-11-02 Schiavi Cesare Costr Mec PERFECTED ROTOCALCO ROTARY MACHINE

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Publication number Publication date
US5347926A (en) 1994-09-20
ITMI921684A0 (en) 1992-07-10
DE59301772D1 (en) 1996-04-11
IT1255333B (en) 1995-10-31
JPH06155705A (en) 1994-06-03
EP0578161A1 (en) 1994-01-12
ITMI921684A1 (en) 1994-01-10

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