EP0338278B1 - Rotary printing press with a continuous printing band - Google Patents

Rotary printing press with a continuous printing band Download PDF

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Publication number
EP0338278B1
EP0338278B1 EP89105155A EP89105155A EP0338278B1 EP 0338278 B1 EP0338278 B1 EP 0338278B1 EP 89105155 A EP89105155 A EP 89105155A EP 89105155 A EP89105155 A EP 89105155A EP 0338278 B1 EP0338278 B1 EP 0338278B1
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EP
European Patent Office
Prior art keywords
rollers
printing
gear wheel
printing press
rotary printing
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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
EP89105155A
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German (de)
French (fr)
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EP0338278A3 (en
EP0338278A2 (en
Inventor
Dieter Rogge
Wilfried Wallmann
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP0338278A2 publication Critical patent/EP0338278A2/en
Publication of EP0338278A3 publication Critical patent/EP0338278A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/007—Use of printing belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/48—Endless printing belt for other than selective or progressive printing

Definitions

  • the invention relates to a rotary printing press with one or more impression cylinders and with a plurality of printing units, each with an ink cylinder and an endless plate belt, which runs over several rollers, one of which can be adjusted to the associated impression cylinder.
  • the endless cliché belt runs over a master cylinder which can be adjusted to the impression cylinder, and a guide cylinder which is adjustable in order to be able to change the format sizes by placing longer or shorter cliché belts.
  • a rotary printing press is provided with several printing units, it is desirable that the distance from the ink cylinder to the impression cylinder, measured on the plate, is always the same, in order to avoid dirty printing due to different drying of the inks.
  • a printing machine in which a printing tape runs over 4 rollers which lie in the corners of an irregular square. Furthermore, in this known printing press, the impression cylinder is placed against the printing belt, supported on the printing cylinder, and at the same time the anilox rollers of the inking unit are also pressed against the printing belt in the area of the jacket of the printing roller.
  • the object of the invention is therefore to provide a rotary printing machine of the type specified at the outset, in which the distances between the inking roller and the impression cylinder measured on the cliché belts are always the same.
  • this object is achieved in that the cliché belt of each printing unit runs over four rollers, which are mounted in side view in the corners of a square or parallelogram and of which two diametrically opposed rollers can be placed on the ink cylinder or a cliché belt and on the impression cylinder and the other two diametrically opposite rollers are mounted in guides and can be moved towards and away from one another by drives.
  • the rotary printing press according to the invention it is ensured that the respective length of the printing plate section between the roller set on the ink cylinder and the roller set on the impression cylinder is always the same, so that the inks are applied with the same amount of drying.
  • the center lines of the bearings of the rollers expediently span a side view of a parallelogram with sides of the same length or of different lengths.
  • rollers are mounted in lateral, rigidly connected bearing plates which are non-rotatable with respect to the printing unit frame or the printing unit carriage, but are laterally displaceable.
  • a device that laterally adjusts the bearing plates can be provided for easy adjustment of the side register.
  • a gear wheel is arranged axially displaceably but non-rotatably on a shaft journal of one of the rollers, with the helical toothing one or the counter-pressure cylinder driving the central wheel that a bush fixed on a frame-fixed pin rotatably but axially displaceably and is connected to a finger or a washer, which engages in an annular groove of the hub of the gear, and that an adjusting device is provided for the axial displacement of the bushing is. If the bushing is adjusted in the axial direction by the adjusting device, the longitudinal register can be adjusted because a displacement of the gear wheel driving the roller on the shaft journal causes the roller to be rotated forward or backward accordingly.
  • a format wheel is expediently rotatably but axially immovably mounted on the bushing, which meshes with the central wheel and the ink cylinder drive gearwheel and whose hub carries the disk which engages in the annular groove of the hub of the gearwheel.
  • a printing press with a ge in a frame 2 stored impression cylinder 1 is shown, the total of six printing units 3 are assigned.
  • the impression cylinder 1 serves as a common impression cylinder for all printing units 3.
  • Fig. 2 also shows a frame 2 ', which carries a total of six printing units 3'. In contrast to the embodiment according to FIG. 1, each printing unit 3 'is assigned a separate impression cylinder 1'.
  • Each printing unit 3 or 3 uses a cliché belt 4, which loops around a total of four rollers, namely an upper and a lower tensioning roller 5, 6 and two printing rollers 7, 8.
  • All are Rollers 5 to 8 are mounted in two side plates 9 and 10 arranged parallel to one another at a distance.
  • the rigid connection between the plates 9 and 10 takes place via four round traverses 11.
  • pins 12 and 13 the two plates 9 and 10 are non-rotatably but laterally displaceable in the side walls 15, 16 of the format cylinder slide 17.
  • a bushing 18 is firmly placed, in which the adjusting member 19 engages for the motorized side register adjustment device, not shown.
  • a bushing 20 is non-rotatably but laterally displaceable. This side shift takes place via an actuator 21 of a motor-operated longitudinal register adjustment device, not shown.
  • the format wheel 23 is placed on the bushing 20 via a bearing 22. This format wheel 23 meshes with the central wheel 24, the diameter of which corresponds to the diameter of the impression cylinder 1 and is firmly connected to the latter.
  • the toothing of the central wheel is helical.
  • a further gear wheel 25 meshes with the central wheel 24.
  • This gear wheel 25 has an attachment 26 provided with an annular groove, a disk 27 engaging in the annular groove, which is firmly connected to the format wheel 23.
  • the actuator 21 is used for the longitudinal register adjustment in that it also adjusts the format wheel 23 with the bushing 20 and with this the gear wheel 25 in the axial direction, which is non-rotatably but axially displaceably arranged on the shaft journal 28 of the pressure roller 7. If the gear 25 is displaced in the axial direction, this gives the pressure roller a rotation because the gear 25 is in engagement with the central gear 24 by means of helical teeth.
  • lateral dots on the cliché band 4 indicate that this band is toothed on its back.
  • the tensioning rollers 5 and 6 can consequently be shifted relative to one another by the same amounts. This is necessary for tensioning a cliché tape or to ensure the use of cliché tapes of different lengths.

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  • Rotary Presses (AREA)

Description

Die Erfindung betrifft eine Rotationsdruckmaschine mit einem oder mehreren Gegendruckzylindern und mit mehreren Druckwerken mit jeweils einem Farbzylinder und einem endlosen Klischeeband, das über mehrere Walzen läuft, von denen eine an den zugehörigen Gegendruckzylinder anstellbar ist.The invention relates to a rotary printing press with one or more impression cylinders and with a plurality of printing units, each with an ink cylinder and an endless plate belt, which runs over several rollers, one of which can be adjusted to the associated impression cylinder.

Bei einer aus der DE-PS 448 987 bekannten Rotationsdruckmaschine dieser Art läuft das endlose Klischeeband über einen Hauptzylinder, der an den Gegendruckzylinder anstellbar ist, und einen Führungszylinder, der verstellbar ist, um durch Auflegen längerer oder kürzerer Klischeebänder die Formatgrößen verändern zu können.In a rotary printing press of this type known from DE-PS 448 987, the endless cliché belt runs over a master cylinder which can be adjusted to the impression cylinder, and a guide cylinder which is adjustable in order to be able to change the format sizes by placing longer or shorter cliché belts.

Ist eine Rotationsdruckmaschine mit mehreren Druckwerken versehen, ist es wünschenswert, daß der auf dem Klischeeband gemessene Abstand von dem Farbzylinder zu dem Gegendruckzylinder immer gleich ist, um aufgrund einer unterschiedlichen Antrocknung der Farben einen unsauberen Druck zu vermeiden.If a rotary printing press is provided with several printing units, it is desirable that the distance from the ink cylinder to the impression cylinder, measured on the plate, is always the same, in order to avoid dirty printing due to different drying of the inks.

Aus DE-A-17 86 507 ist eine Druckmaschine bekannt, bei der ein Druckband über 4 Walzen läuft, die in den Ecken eines unregelmäßigen Vierecks liegen. Weiterhin ist bei dieser bekannten Druckmschine der Gegendruckzylinder an das Druckband unter Abstützung auf den Druckzylinder angestellt, wobei gleichzeitig auch die Rasterwalzen des Farbwerks gegen das Druckband im Bereich des Mantels der Druckwalze angestellt sind.From DE-A-17 86 507 a printing machine is known in which a printing tape runs over 4 rollers which lie in the corners of an irregular square. Furthermore, in this known printing press, the impression cylinder is placed against the printing belt, supported on the printing cylinder, and at the same time the anilox rollers of the inking unit are also pressed against the printing belt in the area of the jacket of the printing roller.

Aus US-A-38 35 775 ist eine Druckmaschine mit Druckbändern bekannt, die nur über zwei Walzen laufen, von denen eine Walze spannbar ist.From US-A-38 35 775 a printing press with printing tapes is known which only run over two rollers, one roller of which can be tensioned.

Aufgabe der Erfindung ist es daher, eine Rotationsdruckmaschine der eingangs angegebenen Art zu schaffen, bei der die auf den Klischeebändern gemessenen Abstände zwischen der Farbwalze und dem Gegendruckzylinder immer gleich sind.The object of the invention is therefore to provide a rotary printing machine of the type specified at the outset, in which the distances between the inking roller and the impression cylinder measured on the cliché belts are always the same.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß das Klischeeband eines jeden Druckwerks über vier Walzen läuft, die in Seitenansicht in den Ecken eines Quadrats oder Parallelogramms gelagert sind und von denen zwei diametral gegenüberliegende Walzen an den Farbzylinder bzw. ein Klischeeband und an den Gegendruckzylinder anstellbar und die anderen beiden diametral gegenüberliegenden Walzen in Führungen gelagerte und durch Antriebe aufeinander zu und voneinander weg bewegbare Spannwalzen sind. Bei der erfindungsgemäßen Rotationsdruckmaschine ist sichergestellt, daß die jeweilige Länge des Klischeebandabschnitts zwischen der an den Farbzylinder angestellten Walze und der an den Gegendruckzylinder angestellten Walze immer gleich ist, so daß die Farben mit gleicher Antrocknung aufgetragen werden.According to the invention, this object is achieved in that the cliché belt of each printing unit runs over four rollers, which are mounted in side view in the corners of a square or parallelogram and of which two diametrically opposed rollers can be placed on the ink cylinder or a cliché belt and on the impression cylinder and the other two diametrically opposite rollers are mounted in guides and can be moved towards and away from one another by drives. In the rotary printing press according to the invention, it is ensured that the respective length of the printing plate section between the roller set on the ink cylinder and the roller set on the impression cylinder is always the same, so that the inks are applied with the same amount of drying.

Weiterhin ist es bei der erfindungsgemäßen Druckmaschine möglich, die Druckwalzen und die Spannwalzen, über die die Klischeebänder laufen, in ihrem Durchmesser relativ klein zu halten.Furthermore, in the printing press according to the invention it is possible to keep the diameter of the printing rollers and the tensioning rollers over which the plate belts run relatively small.

Zweckmäßigerweise spannen die Mittellinien der Lager der Walzen in Seitenansicht ein Parallelogramm mit gleichlangen oder unterschiedlich langen Seiten auf.The center lines of the bearings of the rollers expediently span a side view of a parallelogram with sides of the same length or of different lengths.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Walzen in seitlichen, starr miteinander verbundenen Lagerplatten gelagert sind, die in bezug auf den Druckwerksrahmen bzw. den Druckwerksschlitten undrehbar, aber seitlich verschiebbar sind. Zur einfachen Einstellung des Seitenpassers kann eine die Lagerplatten seitlich verstellende Einrichtung vorgesehen sein.In a further embodiment of the invention it is provided that the rollers are mounted in lateral, rigidly connected bearing plates which are non-rotatable with respect to the printing unit frame or the printing unit carriage, but are laterally displaceable. A device that laterally adjusts the bearing plates can be provided for easy adjustment of the side register.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß auf einem Wellenzapfen einer der Walzen ein Zahnrad axialverschieblich aber undrehbar angeordnet ist, daß mit der Schrägverzahnung eines den oder die Gegendruckzylinder antreibenden Zentralrades kämmt, daß auf einem gestellfesten Zapfen eine Buchse undrehbar aber axial verschieblich geführt und mit einem Finger oder einer Scheibe verbunden ist, die in eine Ringnut der Nabe des Zahnrades greift, und daß eine Stelleinrichtung zur Axialverschiebung der Buchse vorgesehen ist. Wird die Buchse in axialer Richtung durch die Stelleinrichtung verstellt, kann das Längsregister verstellt werden, weil eine Verschiebung des die Walze antreibenden Zahnrades auf dem Wellenzapfen eine entsprechende Vor- oder Rückdrehung der Walze bewirkt.In a further embodiment of the invention it is provided that a gear wheel is arranged axially displaceably but non-rotatably on a shaft journal of one of the rollers, with the helical toothing one or the counter-pressure cylinder driving the central wheel that a bush fixed on a frame-fixed pin rotatably but axially displaceably and is connected to a finger or a washer, which engages in an annular groove of the hub of the gear, and that an adjusting device is provided for the axial displacement of the bushing is. If the bushing is adjusted in the axial direction by the adjusting device, the longitudinal register can be adjusted because a displacement of the gear wheel driving the roller on the shaft journal causes the roller to be rotated forward or backward accordingly.

Zweckmäßigerweise ist auf der Buchse ein Formatrad drehbar aber axial unverschieblich gelagert, das mit dem Zentralrad und dem Farbzylinderantriebszahnrad kämmt und dessen Nabe die Scheibe trägt, die in die Ringnut der Nabe des Zahnrades greift.A format wheel is expediently rotatably but axially immovably mounted on the bushing, which meshes with the central wheel and the ink cylinder drive gearwheel and whose hub carries the disk which engages in the annular groove of the hub of the gearwheel.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
eine Druckmaschine mit einem zentralen Gegendruckzylinder und mehreren über dessen Umfang verteilt angeordneten Druckwerken in schematischer Seitenansicht,
Fig. 2
eine Druckmaschine mit entsprechend der Zahl von Farbwerken vorgesehenen Gegendruckzylindern in schematischer Seitenansicht,
Fig. 3
eines der in den Fig. 1 und 2 eingesetzten Banddruckwerke in vergrößerter Seitenansicht,
Fig. 4
einen Schnitt durch durch das Druckwerk längs der Linie IV-IV in Fig. 3 und
Fig. 5
eine Ansicht des Druckwerks in Richtung des Pfeils V in Fig. 3 im Hinblick auf die Anordnung der Verstellspindeln der beiden Spannzylinder.
Embodiments of the invention are explained below with reference to the drawing. In this shows
Fig. 1
a printing machine with a central impression cylinder and several printing units arranged distributed over its circumference in a schematic side view,
Fig. 2
a printing machine with counter-pressure cylinders provided according to the number of inking units in a schematic side view,
Fig. 3
one of the tape printing units used in FIGS. 1 and 2 in an enlarged side view,
Fig. 4
a section through the printing unit along the line IV-IV in Fig. 3 and
Fig. 5
a view of the printing unit in the direction of arrow V in Fig. 3 with regard to the arrangement of the adjusting spindles of the two clamping cylinders.

In Fig. 1 ist eine Druckmaschine mit einem in einem Gestell 2 ge lagerten Gegendruckzylinder 1 dargestellt, dem insgesamt sechs Druckwerke 3 zugeordnet sind.In Fig. 1, a printing press with a ge in a frame 2 stored impression cylinder 1 is shown, the total of six printing units 3 are assigned.

Der Gegendruckzylinder 1 dient in diesem Fall allen Druckwerken 3 als gemeinsamer Gegendruckzylinder.In this case, the impression cylinder 1 serves as a common impression cylinder for all printing units 3.

Die Fig. 2 zeigt ebenfalls einen Rahmen 2′, der insgesamt sechs Druckwerke 3′ trägt. Im Gegensatz zu der Ausführung nach Fig. 1 sind hier jedem Druckwerk 3′ separate Gegendruckzylinder 1′ zugeordnet.Fig. 2 also shows a frame 2 ', which carries a total of six printing units 3'. In contrast to the embodiment according to FIG. 1, each printing unit 3 'is assigned a separate impression cylinder 1'.

Jedes Druckwerk 3 bzw. 3′ verwendet als Drucküberträger ein Klischeeband 4, welches insgesamt vier Walzen umschlingt, nämlich eine obere und eine untere Spannwalze 5, 6 sowie zwei Druckwalzen 7, 8. Wie insbesondere aus der Fig. 4 zu erkennen ist, sind alle Walzen 5 bis 8 in zwei mit Abstand parallel zueinander angeordneten Seitenplatten 9 und 10 gelagert. Die starre Verbindung zwischen den Platten 9 und 10 erfolgt über vier Rundtraversen 11. Mittels Zapfen 12 und 13 lagern die beiden Platten 9 und 10 nicht drehbar aber seitenverschieblich in den Seitenwänden 15, 16 des Formatzylinderschlittens 17. Auf das nach außen aus der Wand 15 des Formatzylinderschlittens 17 herausragende Ende des Zapfens 12 ist eine Buchse 18 fest aufgesetzt, in die das Verstellglied 19 für die nicht dargestellte motorische Seitenpasserverstelleinrichtung eingreift. Auf das aus der linken Wand 16 des Formatzylinderschlittens 17 hervorragende Ende des Zapfens 13 ist eine Buchse 20 unverdrehbar aber seitenverschieblich aufgesetzt. Diese Seitenverschiebung geschieht über ein Stellglied 21 einer nicht dargestellten motorisch betriebenen Längsregisterverstelleinrichtung. Über ein Lager 22 ist auf die Buchse 20 das Formatrad 23 aufgesetzt. Dieses Formatrad 23 kämmt mit dem Zentralrad 24, dessen Durchmesser dem Durchmesser des Gegendruckzylinders 1 entspricht und mit diesem fest verbunden ist. Die Verzahnung des Zentralrades ist eine Schrägverzahnung. Neben dem Formatrad 23 kämmt noch ein weiteres Zahnrad 25 mit dem Zentralrad 24. Dieses Zahnrad 25 trägt einen mit einer Ringnut versehenen Ansatz 26, wobei in die Ringnut eine Scheibe 27 eingreift, die fest mit dem Formatrad 23 verbunden ist. Das Stellglied 21 dient dadurch der Längsregisterverstellung, daß es mit der Buchse 20 auch das Formatrad 23 und mit diesem das Zahnrad 25 in axialer Richtung verstellt, das undrehbar aber axial verschieblich auf dem Wellenzapfen 28 der Druckwalze 7 angeordnet ist. Wird das Zahnrad 25 in axialer Richtung verschoben, so erteilt dieses der Druckwalze eine Drehung, weil das Zahnrad 25 durch eine Schrägverzahnung im Eingriff mit dem Zentralrad 24 ist.Each printing unit 3 or 3 'uses a cliché belt 4, which loops around a total of four rollers, namely an upper and a lower tensioning roller 5, 6 and two printing rollers 7, 8. As can be seen in particular from FIG. 4, all are Rollers 5 to 8 are mounted in two side plates 9 and 10 arranged parallel to one another at a distance. The rigid connection between the plates 9 and 10 takes place via four round traverses 11. By means of pins 12 and 13, the two plates 9 and 10 are non-rotatably but laterally displaceable in the side walls 15, 16 of the format cylinder slide 17. On the outside from the wall 15 of the Format cylinder slide 17 projecting end of the pin 12, a bushing 18 is firmly placed, in which the adjusting member 19 engages for the motorized side register adjustment device, not shown. On the end of the pin 13 projecting from the left wall 16 of the format cylinder slide 17, a bushing 20 is non-rotatably but laterally displaceable. This side shift takes place via an actuator 21 of a motor-operated longitudinal register adjustment device, not shown. The format wheel 23 is placed on the bushing 20 via a bearing 22. This format wheel 23 meshes with the central wheel 24, the diameter of which corresponds to the diameter of the impression cylinder 1 and is firmly connected to the latter. The toothing of the central wheel is helical. In addition to the format wheel 23, a further gear wheel 25 meshes with the central wheel 24. This gear wheel 25 has an attachment 26 provided with an annular groove, a disk 27 engaging in the annular groove, which is firmly connected to the format wheel 23. The actuator 21 is used for the longitudinal register adjustment in that it also adjusts the format wheel 23 with the bushing 20 and with this the gear wheel 25 in the axial direction, which is non-rotatably but axially displaceably arranged on the shaft journal 28 of the pressure roller 7. If the gear 25 is displaced in the axial direction, this gives the pressure roller a rotation because the gear 25 is in engagement with the central gear 24 by means of helical teeth.

In der Fig. 4 deuten seitliche Punkte auf dem Klischeeband 4 darauf hin, daß dieses Band auf seiner Rückseite verzahnt ist.4, lateral dots on the cliché band 4 indicate that this band is toothed on its back.

Um zu erreichen, daß die beiden Spannwalzen 5 und 6 gegeneinander verstellt werden können, sind ihre Achszapfen 29 in Gleitstücken 30 gelagert, welche in Ausnehmungen 31 der Platten 9 und 10 geführt sind. Die in einer Platte 9 bzw. 10 einander gegenüberliegenden Schlitten 30 tragen Stellmuttern 32, in die Gewindespindeln 33 und 34 eingreifen (siehe Fig. 3). Die Gewindespindeln 33 und 34 haben dabei gegenläufiges Gewinde. Die einander zugewandten Enden der Gewindespindeln 33 und 34 sind über Muffenstücke 35 mit einer Welle 36 verbunden, die in einem mit der Platte 9 bzw. 10 verbundenen Lagerbock 37 gelagert sind. Mit diesem Lagerbock 37 ist ein Winkel 38 verschraubt, der einen Motor 39 trägt. Das Ritzel 40 dieses Motors 39 kämmt mit einem Zahnrad 41, das mit der Welle 36 fest verbunden ist (Fig. 5).In order to ensure that the two tensioning rollers 5 and 6 can be adjusted against each other, their axle journals 29 are mounted in sliding pieces 30 which are guided in recesses 31 in the plates 9 and 10. The carriages 30 lying opposite one another in a plate 9 or 10 carry adjusting nuts 32 into which threaded spindles 33 and 34 engage (see FIG. 3). The threaded spindles 33 and 34 have opposite threads. The mutually facing ends of the threaded spindles 33 and 34 are connected via sleeve pieces 35 to a shaft 36 which are mounted in a bearing block 37 connected to the plate 9 and 10, respectively. An angle 38, which carries a motor 39, is screwed to this bearing block 37. The pinion 40 of this motor 39 meshes with a gear 41 which is fixedly connected to the shaft 36 (FIG. 5).

Durch Einschalten des Motors 39 können demzufolge die Spannwalzen 5 und 6 um gleiche Beträge gegeneinander verschoben werden. Dies ist erforderlich zum Spannen eines Klischeebandes bzw. um den Einsatz verschieden langer Klischeebänder zu gewährleisten.By turning on the motor 39, the tensioning rollers 5 and 6 can consequently be shifted relative to one another by the same amounts. This is necessary for tensioning a cliché tape or to ensure the use of cliché tapes of different lengths.

Claims (6)

  1. A rotary printing press with one or more impression cylinders (1, 1') and with several printing units (3, 3') with one inking roller each and a continuous printing band (4) running over several rollers (5 to 8), whereof one can be applied against the associated impression cylinder,

    characterized in that

    the printing band (4) of each printing unit (3, 3') runs over four rollers (5, 6, 7, 8) which, in a side view, are mounted in the corners of a square or of a parallelogram, and whereof two diametrically opposed rollers (7, 8) can be applied against the inking roller or a printing band and against the impression cylinder (1, 1'), and the other two diametrically opposed rollers (5, 6) are tension rollers mounted in guide-ways and can be moved towards and away from each other by drives.
  2. A rotary printing press according to claim 1, characterized in that the centre lines of the bearings of the rollers (5 to 8) form in a side view a parallelogram with sides of equal or different lengths.
  3. A rotary printing press according to claim 1 or 2, characterized in that the rollers are mounted in lateral rigidly interconnected bearing plates (9, 10) which cannot be rotated with respect to the printing unit frame or the printing unit carriage, but are laterally displaceable.
  4. A rotary printing press according to claim 3, characterized in that for the setting of the side adjuster, provision is made for a device (18, 19) laterally adjusting the bearing plates (9, 10).
  5. A rotary printing press according to one of claims 1 to 4, characterized in that on a journal (28) of one of the rollers (7), a gear wheel (25) is mounted for axial displacement but secured against rotation, which meshes with the helical teeth of a central gear wheel (24) driving the impression cylinder or cylinders, that on a pin (13) fixed to the frame a bush (20) is carried secured against rotation but for axial displacement and is connected to a finger or plate (27) which engages in an annular groove of the hub (26) of the gear wheel (25), and that provision is made for an adjustment device (21) for the axial displacement of the bush (20).
  6. A rotary printing press according to claim 5, characterized in that on the bush (20) a formatting wheel (23) is mounted for rotation but secured against axial displacement which meshes with the central gear wheel (24) and the drive gear wheel of the inking roller, and whose hub carries the plate (27) which engages in the annular groove of the hub of the gear wheel (25).
EP89105155A 1988-04-19 1989-03-22 Rotary printing press with a continuous printing band Expired - Lifetime EP0338278B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3813112 1988-04-19
DE3813112 1988-04-19

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EP0338278A2 EP0338278A2 (en) 1989-10-25
EP0338278A3 EP0338278A3 (en) 1990-01-03
EP0338278B1 true EP0338278B1 (en) 1993-01-13

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EP (1) EP0338278B1 (en)
JP (1) JPH01316267A (en)
DE (1) DE58903255D1 (en)

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US20100089264A1 (en) * 2008-10-10 2010-04-15 Alrick Vincent Warner Absorbent Articles Having Distinct Graphics And Apparatus And Method For Printing Such Absorbent Articles
US8776683B2 (en) 2009-06-02 2014-07-15 The Procter & Gamble Company Process for manufacturing absorbent products having customized graphics
US8960086B2 (en) * 2009-06-26 2015-02-24 The Procter & Gamble Company Systems and methods for varying the repeat pitch distance of a substrate for use with absorbent articles

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DE448987C (en) * 1924-01-05 1927-09-01 Gustav Fischer Rotary printing machine in which the image carrier is an endless belt that takes up the images for gravure, flat or letterpress
US2788738A (en) * 1950-08-03 1957-04-16 Robert W Wood Printing press for printing newspapers and the like
US3518940A (en) * 1967-06-30 1970-07-07 Cameron Machine Co Endless belt printing machine
US3835775A (en) * 1972-10-10 1974-09-17 R Benton Gravure printing press with endless printing belts
CA1144420A (en) * 1980-12-08 1983-04-12 Charles Aaron Flexographic belt printing press
GB2102733B (en) * 1981-05-30 1985-10-02 Cobden Chadwick Ltd Printing presses

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DE58903255D1 (en) 1993-02-25
EP0338278A3 (en) 1990-01-03
EP0338278A2 (en) 1989-10-25
JPH01316267A (en) 1989-12-21
US5009157A (en) 1991-04-23

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