[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0276745B1 - Printing unit suitable for the quick exchange of printing plates - Google Patents

Printing unit suitable for the quick exchange of printing plates Download PDF

Info

Publication number
EP0276745B1
EP0276745B1 EP88100782A EP88100782A EP0276745B1 EP 0276745 B1 EP0276745 B1 EP 0276745B1 EP 88100782 A EP88100782 A EP 88100782A EP 88100782 A EP88100782 A EP 88100782A EP 0276745 B1 EP0276745 B1 EP 0276745B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing unit
cylinders
printing
impression
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
EP88100782A
Other languages
German (de)
French (fr)
Other versions
EP0276745A3 (en
EP0276745A2 (en
Inventor
Peter Knauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0276745A2 publication Critical patent/EP0276745A2/en
Publication of EP0276745A3 publication Critical patent/EP0276745A3/en
Application granted granted Critical
Publication of EP0276745B1 publication Critical patent/EP0276745B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines

Definitions

  • the invention relates to a printing unit of a web offset rotary printing press which is suitable for flying plate changes and has at least two printing units which can be adjusted alternately or simultaneously on a counter-supported printing material web, each consisting of a plate cylinder and a blanket cylinder, which are used to produce perfecting and printing on the blanket cylinders Printing material web are also adjustable against each other.
  • Such a printing unit is known from DE-PS 35 10 822.
  • the common impression cylinder which is not required in this case, is used as the paper guide roller. Touching the impression cylinder can cause the ink to smear on the side of the paper web previously printed by a blanket cylinder.
  • the object of the invention is to further develop a generic printing unit in such a way that smearing of ink is effectively prevented during straight and reverse printing.
  • each blanket cylinder is assigned its own impression cylinder and the two impression cylinders are spaced from one another, the way is free between the two impression cylinders for a contact-free guidance of the substrate web to a downstream printing unit.
  • the printing unit according to the invention can thus be used both as an impression unit for flying plate changes and as a normal printing unit for the creation of two-color face printing or of a high quality perfecting.
  • a first printing unit of the printing unit according to the invention is composed of a plate cylinder 1, to which an inking unit (not shown) and a dampening unit are assigned, and a blanket cylinder 2 attached to the latter.
  • the blanket cylinder 2 is mounted so that it can either be adjusted against a counter-pressure cylinder 3 or removed from it.
  • a plate cylinder 5 interacts with a blanket cylinder 4 of a second printing unit and is supplied with printing ink and water by an inking unit and dampening unit, not shown.
  • the blanket cylinder 4 is mounted such that it can be adjusted to the first blanket cylinder 2 or to a further impression cylinder 6 or can be removed from both in a central position.
  • the two impression cylinders 3 and 6 are immovably mounted in the machine frame at a distance which allows the unimpeded passage of a printing material web 7 ', also taking into account any vibrations that may occur on the web.
  • the printing material web 7, as shown in FIG. 1, is guided around both impression cylinders 3 and 6 with two-color fine printing.
  • the blanket cylinder 4 applies the first printing ink in cooperation with the impression cylinder 6 and the blanket cylinder 2 the second printing ink in cooperation with the impression cylinder 3.
  • By alternately starting one of the blanket cylinders 2, 4 on the associated impression cylinder 3 or 6 see FIGS. 3 and 5), it is possible to produce changing impressions with this web guide.
  • the second blanket cylinder 4 is turned off from the impression cylinder 6 assigned to it and is set against the first blanket cylinder 2.
  • a printing material web, designated 7 ', is passed between the two blanket cylinders 2 and 4 and printed by these on both sides in face and back printing.
  • the printing material web 7 ' is then passed between the two impression cylinders 3 and 6 without contact to a subsequent printing unit or, if no further inks are to be applied, to the other downstream units, such as a drying unit.
  • the transmission described below and shown in FIGS. 2, 4, 6 and 8 is suitable for realizing the types of production described above with a single force introduction point branching off the main drive.
  • the necessary gearwheels arranged in three parallel vertical planes next to each other on the same machine side have been given the same reference numbers as the cylinders on whose shafts they are arranged, and an index corresponding to their plane has been used to distinguish them.
  • the level indicated with a line is closest to the end of the cylinder, which is followed by the levels indicated with two "and three lines" to the outside.
  • the gears used are all helical and correspond in their pitch circle diameter to the diameter of the cylinder on whose shaft they are located. In order to enable power transmission for certain gearwheel pairs and to exclude this with others due to missing flank contact, some of the wheels have a positive or negative profile shift, which is shown in FIGS. 2, 4, 6 and 8 by a "+" or a "-" Character is expressed.
  • FIGS. 2, 4, 6 and 8 results from a cut according to the cut line shown in FIG. 1 with a subsequent flap into a projection plane.
  • a gearwheel 3 ′ arranged on the shaft of the first impression cylinder 3 and a gearwheel 6 ′ arranged on the shaft of the second impression cylinder 6 are in constant engagement.
  • a further gear 6 is freely rotatably mounted, which can be connected to this shaft via a coupling 10.
  • this gear 6 which has a negative profile shift
  • gear 4 equipped on the shaft of the second rubber blanket cylinder 4 is engaged in profile displacement.
  • the gear 4" ' which is still freely rotatable on this shaft, can be connected to it by a coupling 11.
  • gear 4 is a gear 5" equipped with a negative profile shift on the shaft of the plate cylinder 5 in engagement.
  • the blanket cylinder 2 are employed on the impression cylinder 3 and the blanket cylinder 4 on the impression cylinder 6 for two-color fine printing.
  • the power flow is divided into two strands.
  • the upper train drives the counter-pressure cylinder 3 via the gearwheel 3 ', the first rubber blanket cylinder 2 via its closed coupling 9 and the pair of wheels 3 "', 2" 'and the associated plate cylinder 1 via the pair of wheels 2 "', 1" ' Strand is driven via the gear 6 'first of all the impression cylinder 6, further via the closed clutch 10 and the pair of wheels 6 ", 4" the second blanket cylinder 4 and via the pair of wheels 4 ", 5" the associated plate cylinder 5.
  • a reaction from the shaft of the first rubber blanket cylinder 2 to the shaft of the second rubber blanket cylinder 4 through the meshing gears 2 "'and 4"' is avoided by the opened clutch 11.
  • the first blanket cylinder 2 is set against the impression cylinder 3 when impressed by the upper printing unit.
  • the second blanket cylinder 4 is in its central position.
  • the power transmission takes place in the upper section of the drive as described in the previous paragraph.
  • only the counter-pressure cylinder 6 is driven by the pair of wheels 8, 6 '.
  • the opened clutch 10 prevents further power transmission. Since no reaction from the shaft of the first blanket cylinder 2 to the shaft of the second blanket cylinder 4 is possible via the opened clutch 11, the lower printing unit stands still and can be prepared for a following impression.
  • the second blanket cylinder 4 is employed on the first blanket cylinder 2 when applying perfecting, the latter remaining in contact with the impression cylinder 3 assigned to it for drive reasons.
  • these cylinders are now driven with the clutch 10 open from the upper drive train via the pair of wheels 2 "', 4"', the closed clutch 11 and the pair of wheels 4 ", 5".
  • the impression cylinder 6 runs idle, which is irrelevant due to the distance of the two impression cylinders to the printing material web 7 'passed between them.
  • the gearbox can be built very narrow and can therefore be accommodated on one machine side. Assembly and ease of maintenance have been improved by the couplings placed exclusively on the shaft ends.

Landscapes

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

Description

Die Erfindung betrifft ein für fliegenden Plattenwechsel geeignetes Druckwerk einer Rollenoffset-Rotationsdruckmaschine mit mindestens zwei wechselweise oder gleichzeitig an eine gegengestützte Bedruckstoffbahn anstellbaren, je aus einem Plattenzylinder und einem Gummituchzylinder bestehenden Druckeinheiten, die zur Erzeugung von Schön- und Widerdruck auf der hierfür zwischen den Gummituchzylindern hindurchgeführten Bedruckstoffbahn auch gegeneinander anstellbar sind.The invention relates to a printing unit of a web offset rotary printing press which is suitable for flying plate changes and has at least two printing units which can be adjusted alternately or simultaneously on a counter-supported printing material web, each consisting of a plate cylinder and a blanket cylinder, which are used to produce perfecting and printing on the blanket cylinders Printing material web are also adjustable against each other.

Ein solches Druckwerk ist aus der DE-PS 35 10 822 bekannt. Bei diesem wird im Falle des Druckens mit gegeneinandergestellten Gummituchzylindern der gemeinsame, in diesem Fall nicht benötigte Gegendruckzylinder als Papierleitwalze verwendet. Durch die Berührung mit dem Gegendruckzylinder kann es auf der zuvor vom einen Gummituchzylinder bedruckten Seite der Papierbahn dabei zu einem Abschmieren der Farbe kommen.Such a printing unit is known from DE-PS 35 10 822. In this case, in the case of printing with blanket cylinders placed against one another, the common impression cylinder, which is not required in this case, is used as the paper guide roller. Touching the impression cylinder can cause the ink to smear on the side of the paper web previously printed by a blanket cylinder.

Aufgabe der Erfindung ist es, ein gattungsgemäßes Druckwerk derart weiterzubilden, daß beim Schön- und Widerdruck ein Abschmieren von Farbe wirksam verhindert wird.The object of the invention is to further develop a generic printing unit in such a way that smearing of ink is effectively prevented during straight and reverse printing.

Diese Aufgabe wird durch die Anwendung der Merkmale des Kennzeichens des Patentanspruches 1 gelöst.- Dadurch, daß jedem Gummituchzylinder ein eigener Gegendruckzylinder zugeordnet ist und die beiden Gegendruckzylinder voneinander beabstandet sind, wird zwischen beiden Gegendruckzylinder der Weg für eine berührungsfreie Führung der Bedruckstoffbahn bis zu einem nachgeordneten Druckwerk frei. Das erfindungsgemäße Druckwerk ist damit sowohl als Eindruckwerk für fliegenden Plattenwechsel als auch als normales Druckwerk zur Erstellung von zweifarbigem Schöndruck oder von einem qualitativ hochwertigen Schön- und Widerdruck einsetzbar.This object is achieved by applying the features of the characterizing part of patent claim 1. - Because each blanket cylinder is assigned its own impression cylinder and the two impression cylinders are spaced from one another, the way is free between the two impression cylinders for a contact-free guidance of the substrate web to a downstream printing unit. The printing unit according to the invention can thus be used both as an impression unit for flying plate changes and as a normal printing unit for the creation of two-color face printing or of a high quality perfecting.

Nachstehend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnungen beschrieben. Dabei zeigt

  • Fig. 1 eine schematische Darstellung der Zylinderkonfiguration beim Aufbringen von zweifarbigem Schöndruck,
  • Fig. 2 einen Teillängsschnitt durch die Antriebsseite bei der Produktion gemäß Fig. 1.
  • Fig. 3 eine schematische Darstellung der Zylinderkonfiguration beim Eindruck durch eine erste Druckeinheit,
  • Fig. 4 einen Teillängsschnitt durch die Antriebsseite bei der Produktion gemäß Fig. 3,
  • Fig. 5 eine schematische Darstellung der Zylinderkonfiguration beim Eindruck durch eine zweite Druckeinheit,
  • Fig. 6 einen Teillängsschnitt durch die Antriebsseite bei der Produktion gemäß Fig. 5,
  • Fig. 7 eine schematische Darstellung der Zylinderkonfiguration beim Schön- und Widerdruck,
  • Fig. 8 einen Teillängsschnitt durch die Antriebsseite bei der Produktion gemäß Fig. 7.
An embodiment of the invention is described below with reference to the drawings. It shows
  • 1 is a schematic representation of the cylinder configuration when applying two-color straight printing,
  • 2 shows a partial longitudinal section through the drive side in the production according to FIG. 1.
  • 3 shows a schematic representation of the cylinder configuration when impressed by a first printing unit,
  • 4 shows a partial longitudinal section through the drive side during the production according to FIG. 3,
  • 5 shows a schematic representation of the cylinder configuration when impressed by a second printing unit,
  • 6 shows a partial longitudinal section through the drive side during the production according to FIG. 5,
  • 7 is a schematic representation of the cylinder configuration for perfecting,
  • 8 shows a partial longitudinal section through the drive side during the production according to FIG. 7.

Eine erste Druckeinheit des erfindungsgemäßen Druckwerkes setzt sich aus einem Plattenzylinder 1, dem ein nicht dargestelltes Farbwerk und ein Feuchtwerk zugeordnet sind, und einem an diesen angestellten Gummituchzylinder 2 zusammen. Der Gummituchzylinder 2 ist so gelagert, daß er entweder an einen Gegendruckzylinder 3 anstellbar oder von diesem abstellbar ist.A first printing unit of the printing unit according to the invention is composed of a plate cylinder 1, to which an inking unit (not shown) and a dampening unit are assigned, and a blanket cylinder 2 attached to the latter. The blanket cylinder 2 is mounted so that it can either be adjusted against a counter-pressure cylinder 3 or removed from it.

Mit einem Gummituchzylinder 4 einer zweiten Druckeinheit wirkt ein Plattenzylinder 5 zusammen, der durch ein nicht dargestelltes Farbwerk und Feuchtwerk mit Druckfarbe und Wasser versorgt wird. Der Gummituchzylinder 4 ist so gelagert, daß er an den ersten Gummituchzylinder 2 oder an einem weiteren Gegendruckzylinder 6 anstellbar oder in einer Mittelstellung von beiden abstellbar ist. Die beiden Gegendruckzylinder 3 und 6 sind unverstellbar im Maschinengestell in einem Abstand gelagert, der das unbeninderte HindurchfütiT'en einer Bedruckstoffbahn 7' auch unter Berücksichtigung von eventuell auftretenden Schwingungen der Bahn gestattet.A plate cylinder 5 interacts with a blanket cylinder 4 of a second printing unit and is supplied with printing ink and water by an inking unit and dampening unit, not shown. The blanket cylinder 4 is mounted such that it can be adjusted to the first blanket cylinder 2 or to a further impression cylinder 6 or can be removed from both in a central position. The two impression cylinders 3 and 6 are immovably mounted in the machine frame at a distance which allows the unimpeded passage of a printing material web 7 ', also taking into account any vibrations that may occur on the web.

Die Bedruckstoffbahn 7 wird-wie in Fig. 1 dargestellt-bei zweifarbigem Schöndruck um beide Gegendruckzylinder 3 und 6 herumgeführt. Dabei wird vom Gummituchzylinder 4 die erste Druckfarbe im Zusammenwirken mit dem Gegendruckzylinder 6 und vom Gummituchzylinder 2 die zweite Druckfarbe im Zusammenwirken mit dem Gegendruckzylinder 3 aufgebracht. Bei wechselweisem Anstellen jeweils eines der Gummituchzylinder 2, 4 an den diesem zugeordnetem Gegendruckzylinder 3 bzw. 6 (siehe Fig. 3 und 5) ist bei dieser Bahnführung die Erstellung wechselnder Eindrucke möglich.The printing material web 7, as shown in FIG. 1, is guided around both impression cylinders 3 and 6 with two-color fine printing. The blanket cylinder 4 applies the first printing ink in cooperation with the impression cylinder 6 and the blanket cylinder 2 the second printing ink in cooperation with the impression cylinder 3. By alternately starting one of the blanket cylinders 2, 4 on the associated impression cylinder 3 or 6 (see FIGS. 3 and 5), it is possible to produce changing impressions with this web guide.

Bei der in Fig. 7 dargestellten Konfiguration ist der zweite Gummituchzylinder 4 vom ihm zugeordneten Gegendruckzylinder 6 abgestellt und an den ersten Gummituchzylinder 2 angestellt. Eine mit 7' bezeichnete Bedruckstoffbahn wird zwischen den beiden Gummituchzylindern 2 und 4 hindurchgeführt und von diesen beidseitig im Schön- und Widerdruck bedruckt. Die Bedruckstoffbahn 7' wird anschließend zwischen den beiden Gegendruckzylindern 3 und 6 hindurch berührungsfrei einem folgenden Druckwerk oder, falls keine weiteren Farben mehr aufgebracht werden sollen, den sonstigen nachgeschalteten Aggregaten, wie zum Beispiel einem Trockenwerk, zugeführt.In the configuration shown in FIG. 7, the second blanket cylinder 4 is turned off from the impression cylinder 6 assigned to it and is set against the first blanket cylinder 2. A printing material web, designated 7 ', is passed between the two blanket cylinders 2 and 4 and printed by these on both sides in face and back printing. The printing material web 7 'is then passed between the two impression cylinders 3 and 6 without contact to a subsequent printing unit or, if no further inks are to be applied, to the other downstream units, such as a drying unit.

Zur Realisierung der vorstehend beschriebenen Produktionsarten mit einer einzigen, vom Hauptantrieb abzweigenden Krafteinleitungsstelle ist das im folgenden beschriebene, in den Fig. 2, 4, 6 und 8 dargestellte Getriebe geeignet. Die erforderlichen, in drei parallelen vertikalen Ebenen nebeneinander auf derselben Maschinenseite angeordneten Zahnräder wurden der besseren Übersichtlichkeit halber mit den gleichen Bezugszahlen wie die Zylinder, auf deren Wellen sie angeordnet sind, bezeichnet und zur Unterscheidung mit einem ihrer Ebene entsprechenden Index versehen. Dabei liegt die mit einem Strich ' indizierte Ebene dem Zylinderende am nächsten, woran sich die mit zwei " und mit drei Strichen "' indizierten Ebenen nach außen anschließen.The transmission described below and shown in FIGS. 2, 4, 6 and 8 is suitable for realizing the types of production described above with a single force introduction point branching off the main drive. For the sake of clarity, the necessary gearwheels arranged in three parallel vertical planes next to each other on the same machine side have been given the same reference numbers as the cylinders on whose shafts they are arranged, and an index corresponding to their plane has been used to distinguish them. The level indicated with a line is closest to the end of the cylinder, which is followed by the levels indicated with two "and three lines" to the outside.

Die verwendeten Zahnräder sind alle schrägverzahnt und entsprechen bezüglich ihres Teilkreisdurchmessers dem Durchmesser des Zylinders, auf dessen Welle sie sich befinden. Um bei bestimmten Zahnradpaaren eine Kraftübertragung zu ermöglichen und diese bei anderen durch fehlende Flankenberührung auszuschließen, weisen einige der Räder eine positive oder negative Profilverschiebung auf, was in den Fig. 2, 4, 6 und 8 durch eine "+" oder ein "-" Zeichen zum Ausdruck kommt.The gears used are all helical and correspond in their pitch circle diameter to the diameter of the cylinder on whose shaft they are located. In order to enable power transmission for certain gearwheel pairs and to exclude this with others due to missing flank contact, some of the wheels have a positive or negative profile shift, which is shown in FIGS. 2, 4, 6 and 8 by a "+" or a "-" Character is expressed.

Die Darstellung in den Fig. 2, 4, 6 und 8 entsteht durch einen Schnitt gemäß der in Fig. 1 dargestellten Schnittlinie mit einem anschließenden Klappen in eine Projektionsebene.The representation in FIGS. 2, 4, 6 and 8 results from a cut according to the cut line shown in FIG. 1 with a subsequent flap into a projection plane.

Mit einem vom Hauptantrieb der Druckmaschine abzweigenden Ritzel 8 stehen ein auf der Welle des ersten Gegendruckzylinder§ 3 angeordnetes Zahnrad 3' und ein auf der Welle des zweiten Gegendruckzylinders 6 angeordnetes Zahnrad 6' in ständigem Eingriff. Auf der Welle des ersten Gegendruckzylinders 3 ist außerdem ein mit negativer Profilversrhiebung versehenes Zahnrad 3"' frei drehbar angeordnet, das durch eine Kupplung 9 mit dieset Welle verbunden werden kann. Mit diesem Zahnrad 3"' kämmt ein mit positiver Profilverschiebung versehenes, auf der Welle des ersten Gummituchzylinders 2 angeordnetes Zahnrad 2"'. Dieses steht im Eingriff mit einem mit negativer Profilverschiebung ausgestatteten Zahnrad 1"' auf der Welle des Plattenzylinders 1 und außerdem mit einem ebenfalls mit negativer Profilverschiebung versehenen Zahnrad 4"' auf der Welle des zweiten Gummituchzylinders 4. Dieser letztgenannte Zahneingriff ist in den Fig. 2, 4, 6 und 8 durch eine zusätzliche, den Kraftfluß zwischen beiden Zahnrädern verdeutlichende gestrichelte Linie dargestellt.With a pinion 8 branching off from the main drive of the printing press, a gearwheel 3 ′ arranged on the shaft of the first impression cylinder 3 and a gearwheel 6 ′ arranged on the shaft of the second impression cylinder 6 are in constant engagement. On the shaft of the first counter-pressure cylinder 3 there is also a freely rotatable gear 3 "'provided with a negative profile displacement, which can be connected to this shaft by a coupling 9. With this gear 3"' meshes with a positive profile shift on the shaft of the first blanket cylinder 2 arranged gear 2 "'. This meshes with a gear 1"' equipped with a negative profile shift on the shaft of the plate cylinder 1 and also with a gear 4 "'also provided with a negative profile shift on the shaft of the second blanket cylinder 4 2, 4, 6 and 8, this last-mentioned tooth engagement is represented by an additional dashed line which illustrates the power flow between the two gear wheels.

Auf der Welle des zweiten Gegendruckzylinders 6 ist außer dem bereits erwähnten Zahnrad 6' ein weiteres Zahnrad 6" frei drehbar gelagert, welches über eine Kupplung 10 mit dieser Welle verbunden werden kann. Mit diesem, eine negative Profilverschiebung aufweisenden Zahnrad 6" steht ein mit positiver Profilverschiebung ausgestattetes Zahnrad 4" auf der Welle des zweiten Gummituchzylinders 4 im Eingriff. Das weiterhin auf dieser Welle frei drehbar gelagerte Zahnrad 4"' kann durch eine Kupplung 11 mit jener verbunden werden. Mit dem Zahnrad 4" steht ein mit negativer Profilverschiebung ausgestattetes Zahnrad 5" auf der Welle des Plattenzylinders 5 im Eingriff.On the shaft of the second counter-pressure cylinder 6, in addition to the already mentioned gear 6 ', a further gear 6 "is freely rotatably mounted, which can be connected to this shaft via a coupling 10. With this gear 6", which has a negative profile shift, there is a positive one Gear 4 "equipped on the shaft of the second rubber blanket cylinder 4 is engaged in profile displacement. The gear 4" ', which is still freely rotatable on this shaft, can be connected to it by a coupling 11. With the gear 4 "is a gear 5" equipped with a negative profile shift on the shaft of the plate cylinder 5 in engagement.

In Fig. 2 sind zum zweifarbigen Schöndruck der Gummituchzylinder 2 an den Gegendruckzylinder 3 und der Gummituchzylinder 4 an den Gegendruckzylinder 6 angestellt. Der Kraftfluß teilt sich vom Ritzel 8 ausgehend in zwei Stränge auf. Der obere Strang treibt über das Zahnrad 3' den Gegendruckzylinder 3, über dessen geschlossene Kupplung 9 und das Räderpaar 3"', 2"' den ersten Gummituchzylinder 2 sowie über das Räderpaar 2"', 1"' den zugehörigen Plattenzylinder 1. Im unteren Strang wird über das Zahnrad 6' zunächst der Gegendruckzylinder 6, weiter über die geschlossene Kupplung 10 und das Räderpaar 6", 4" der zweite Gummituchzylinder 4 und über das Räderpaar 4", 5" der zugehörige Plattenzylinder 5 angetrieben. Eine Rückwirkung von der Welle des ersten Gummituchzylinders 2 auf die Welle des zweiten Gummituchzylinders 4 durch die im Eingriff stehenden Zahnräder 2"' und 4"' wird durch die geöffnete Kupplung 11 vermieden.In Fig. 2, the blanket cylinder 2 are employed on the impression cylinder 3 and the blanket cylinder 4 on the impression cylinder 6 for two-color fine printing. Starting from the pinion 8, the power flow is divided into two strands. The upper train drives the counter-pressure cylinder 3 via the gearwheel 3 ', the first rubber blanket cylinder 2 via its closed coupling 9 and the pair of wheels 3 "', 2" 'and the associated plate cylinder 1 via the pair of wheels 2 "', 1" ' Strand is driven via the gear 6 'first of all the impression cylinder 6, further via the closed clutch 10 and the pair of wheels 6 ", 4" the second blanket cylinder 4 and via the pair of wheels 4 ", 5" the associated plate cylinder 5. A reaction from the shaft of the first rubber blanket cylinder 2 to the shaft of the second rubber blanket cylinder 4 through the meshing gears 2 "'and 4"' is avoided by the opened clutch 11.

In Fig. 4 ist beim Eindruck durch die obere Druckeinheit der erste Gummituchzylinder 2 an den Gegendruckzylinder 3 angestellt. Der zweite Gummituchzylinder 4 befindet sich in seiner Mittelstellung. Im oberen Strang des Antriebs erfolgt die Kraftübertragung wie im vorhergehenden Absatz beschrieben. Im unteren Strang wird durch das Räderpaar 8, 6' nur der Gegendruckzylinder 6 angetrieben. Die geöffnete Kupplung 10 unterbindet die weitere Kraftübertragung. Da über die geöffnete Kupplung 11 auch keine Rückwirkung von der Welle des ersten Gummituchzylinders 2 auf die Welle des zweiten Gummituchzylinders 4 möglich ist, steht die untere Druckeinheit still und kann für einen folgenden Eindruck vorbereitet werden.In FIG. 4, the first blanket cylinder 2 is set against the impression cylinder 3 when impressed by the upper printing unit. The second blanket cylinder 4 is in its central position. The power transmission takes place in the upper section of the drive as described in the previous paragraph. In the lower strand, only the counter-pressure cylinder 6 is driven by the pair of wheels 8, 6 '. The opened clutch 10 prevents further power transmission. Since no reaction from the shaft of the first blanket cylinder 2 to the shaft of the second blanket cylinder 4 is possible via the opened clutch 11, the lower printing unit stands still and can be prepared for a following impression.

In Fig. 6 wird beim Eindruck der unteren Druckeinheit der erste Gummituchzylinder 2 vom Gegendruckzylinder 3 abgestellt und der zweite Gummituchzylinder 4 an den Gegendruckzylinder 6 angestellt. Der Antrieb pflanzt sich im oberen Strang durch die geöffnete Kupplung 9 nur über das Räderpaar 8, 3' bis zur Welle des Gegendruckzylinders 3 fort. Im unteren Strang wird über das Räderpaar 8, 6' der Gegendruckzylinder 6, über die geschlossene Kupplung 10 und das Räderpaar 6", 4" der Gummituchzylinder 4 sowie über das Räderpaar 4", 5" der zugehörige Plattenzylinder 5 angetrieben. Die Kupplung 11 ist geöffnet, damit über das Räderpaar 4"', 2"' keine Rückwirkung zur oberen Druckeinheit erfolgt und dort bei Stillstand desselben ein folgender Eindruck vorbereitet werden kann.In FIG. 6, when the lower printing unit is impressed, the first blanket cylinder 2 is turned off from the impression cylinder 3 and the second blanket cylinder 4 is turned against the impression cylinder 6. The drive propagates in the upper strand through the opened clutch 9 only via the pair of wheels 8, 3 'to the shaft of the impression cylinder 3. In the lower line, the impression cylinder 6 is driven via the pair of wheels 8, 6 ', the blanket cylinder 4 via the closed coupling 10 and the pair of wheels 6 ", 4" and the associated plate cylinder 5 via the pair of wheels 4 ", 5". The clutch 11 is opened so that there is no reaction to the upper pressure unit via the pair of wheels 4 "', 2"' and a following impression can be prepared there when the latter is at a standstill.

In Fig.. 8 ist beim Aufbringen von Schön- und Widerdruck der zweite Gummituchzylinder 4 an den ersten Gummituchzylinder 2 angestellt, wobei letzterer aus Antriebsgründen an dem ihm zugeordneten Gegendruckzylinder 3 in Anlage bleibt. Um eine gegenüber den bisher beschriebenen Produktionsarten notwendige Drehrichtungsumkehr der Zylinder 4, 5 der unteren Druckeinheit zu erreichen, erfolgt der Antrieb dieser Zylinder nunmehr bei geöffneter Kupplung 10 vom oberen Antriebsstrang aus über das Räderpaar 2"', 4"', die geschlossene Kupplung 11 und das Räderpaar 4", 5". Der Gegendruckzylinder 6 läuft leer mit, was aufgrund des Abstandes der beiden Gegendruckzylinder zu der zwischen ihnen hindurchgeführten Bedruckstoffbahn 7' ohne Belang ist.In Fig. 8 the second blanket cylinder 4 is employed on the first blanket cylinder 2 when applying perfecting, the latter remaining in contact with the impression cylinder 3 assigned to it for drive reasons. In order to achieve a reversal of the direction of rotation of the cylinders 4, 5 of the lower pressure unit compared to the previously described production types, these cylinders are now driven with the clutch 10 open from the upper drive train via the pair of wheels 2 "', 4"', the closed clutch 11 and the pair of wheels 4 ", 5". The impression cylinder 6 runs idle, which is irrelevant due to the distance of the two impression cylinders to the printing material web 7 'passed between them.

Die Notwendigkeit, die Zahnräder 1'" und 5"-wie in den Fig. 2, 4, 6 und 8 dargestellt--überbreit auzulegen, steht im Zusammenhang mit der von diesen ausgehenden weiteren Kraftübertragung an die nicht dargestellten Farb- und Feuchtwerke. Die Anwendung von negativer bzw. positiver Profilverschiebung bei einigen Zahnrädern ist wiederum eine Folge aus dieser Überbreite der Zahnräder 1'" und 5".The need for the gearwheels 1 '"and 5" - as shown in FIGS. 2, 4, 6 and 8 - to be laid out too wide is related to the further transmission of force to the color and color not shown Dampening systems. The use of negative or positive profile shift in some gears is again a consequence of this excess width of the gears 1 '"and 5".

An den Zahnrädern 1"' und 5" der Plattenzylinder 1 und 5 greifen außerdem die Antriebsritzel von hier nicht dargestellten, aus der DE-PS 35 10 822 bekannten Beschleunigungsmotoren an, die bei wechselndem Eindruck die jeweils abgeschaltete und für einen neuen Eindruck vorbereitete Druckeinheit vor deren Zuschaltung auf Maschinendrehzahl beschleunigen.On the gears 1 "'and 5" of the plate cylinders 1 and 5 also attack the drive pinions of acceleration motors, not shown here, known from DE-PS 35 10 822, which, in the event of a changing impression, precede the printing unit which has been switched off and prepared for a new impression accelerate their connection to machine speed.

Das Getriebe kann sehr schmal gebaut und daher auf einer Maschinenseite untergebracht werden. Montage und Wartungsfreundlichkeit wurden durch die ausschließlich an den Wellenenden plazierten Kupplungen verbessert.The gearbox can be built very narrow and can therefore be accommodated on one machine side. Assembly and ease of maintenance have been improved by the couplings placed exclusively on the shaft ends.

Claims (8)

1. Printing unit in a web-fed offset rotary printing machine suitable for flying plate exchange, having at least two printing units each comprising a plate cylinder and a rubber blanket cylinder which can be set alternately or simultaneously on a counter-supported print carrier web, which units can also be set against each other to produce recto and verso print on the printed material web guided between the rubber blanket cylinders for this purpose, characterised in that the rubber blanket cylinder (2) of the first printing unit can be set against a first impression cylinder (3) to apply a verso print, the rubber blanket cylinder (4) of the second printing unit can be set against a second impression cylinder (6) to apply a verso print and both impression cylinders (3, 6) are spaced apart for guiding the printed material web (7') through when verso and recto print are applied by the juxtaposed rubber blanket cylinders (2, 4).
2. Printing unit according to Claim 1, characterised in that both impression cylinders (3, 6) and the rubber blanket cylinders (2, 4) and plate cylinders (1, 5) of both printing units can be driven by a single pinion (8) connected to the main drive.
3. Printing unit according to Claim 2, characterised in that the pinion (8) mates with gear wheels (3', 6') fixedly arranged on the shafts of the impression cylinders (3, 6).
4. Printing unit according to Claim 2 and 3, characterised in that further gear wheels (3"', 6") are arranged on the shafts of the impression cylinders (3, 6), and mating with these gear wheels and arranged on the shafts of the rubber blanket cylinders (2, 4) are gear wheels (2"', 4") by means of which extra wide gear wheels (1"', 5") arranged on the shafts of the plate cylinders (1, 5) can be directly driven.
5. Printing unit according to one of the preceding claims, characterised in that the rubber blanket cylinder (4) of the second printing unit carries on its shaft two gear wheels (4", 4"') of which either the first gear wheel (4"), firmly connected to this shaft, can be driven by means of the gear wheel (6"), arranged on the shaft of the impression cylinder (6), and connectable to this in force fit manner by means of a coupling (10), or the second gear wheel (4"') which can be coupled to the shaft of the rubber blanket cylinder (4) by means of a coupling (11) can be driven in the respective opposite direction of rotation by means of toothed engagement with a gear wheel (2"') arranged on the shaft of the other rubber banket cylinder (2).
6. Printing unit according to one of the preceding claims, characterised in that all the gear wheels (1"', 2"', 3', 3"', 4", 4"', 5", 6', 6", 8) and couplings (9, 10, 11) necessary for the drive are arranged on one side of the printing machine.
7. Printing unit according to one of the preceding claims, characterised in that all the couplings (9; 10; 11) are arranged on the outside on the ends of the shafts.
8. Printing unit according to one of the preceding claims, characterised in that the pitch diameters of all the gearwheels (1"', 2"', 3', 3"', 4", 4"', 5", 6', 6") correspond to the outer diameter of the cylinder (1, 2, 3, 4, 5, 6) on the shaft of which they are arranged and in that the gear wheels (1"', 3"', 4"', 5", 6") have a negative profile offset but the gear wheels (2"', 4") have a positive profile offset.
EP88100782A 1987-01-24 1988-01-20 Printing unit suitable for the quick exchange of printing plates Expired - Lifetime EP0276745B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3702071A DE3702071C1 (en) 1987-01-24 1987-01-24 Suitable printing unit for changing plate
DE3702071 1987-01-24

Publications (3)

Publication Number Publication Date
EP0276745A2 EP0276745A2 (en) 1988-08-03
EP0276745A3 EP0276745A3 (en) 1988-11-02
EP0276745B1 true EP0276745B1 (en) 1991-01-23

Family

ID=6319469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100782A Expired - Lifetime EP0276745B1 (en) 1987-01-24 1988-01-20 Printing unit suitable for the quick exchange of printing plates

Country Status (4)

Country Link
US (1) US4934265A (en)
EP (1) EP0276745B1 (en)
JP (1) JPS63260440A (en)
DE (2) DE3702071C1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918127C1 (en) * 1989-06-03 1990-12-13 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4136902C2 (en) * 1991-11-09 1998-06-10 Roland Man Druckmasch Drive for sheet-fed rotary printing machines
DE19603663A1 (en) * 1996-02-02 1997-08-07 Roland Man Druckmasch Printing unit for the flying printing plate change
DE19629605C2 (en) * 1996-07-23 2000-02-03 Koenig & Bauer Ag Drive a printing unit
DE29702923U1 (en) * 1997-02-19 1997-03-27 Maschinenfabrik Wifag, Bern Cylinder unit for a web-fed rotary printing press
US6227110B1 (en) 1998-06-23 2001-05-08 Heidelberger Druckmaschinen Ag Wet printing press with throw-off mechanism
DE29921184U1 (en) * 1999-12-03 2001-04-12 Web Tech Licensees B.V., Badhoevedorp Satellite printing machine for printing on sheets and webs
US6474231B1 (en) * 2000-07-26 2002-11-05 Heidelberger Druckmaschinen Ag Multi-color printing press with common blanket cylinder
DE10046376C2 (en) * 2000-09-20 2002-12-12 Koenig & Bauer Ag Drive a printing unit
DE10046368C2 (en) * 2000-09-20 2003-02-06 Koenig & Bauer Ag Drive a printing unit
DE10103642A1 (en) * 2001-01-27 2002-08-01 Zahnradfabrik Friedrichshafen Actuator for steer-by-wire steering system with dry-running clutch and transmission and part of clutch integrated in transmission
GB0315986D0 (en) * 2003-07-08 2003-08-13 Goss Graphic Systems Ltd Printing press
US7849796B2 (en) 2005-03-30 2010-12-14 Goss International Americas, Inc Web offset printing press with articulated tucker
WO2006104828A2 (en) * 2005-03-30 2006-10-05 Goss International Americas, Inc. Cantilevered blanket cylinder lifting mechanism
JP4814309B2 (en) * 2005-03-30 2011-11-16 ゴス インターナショナル アメリカス インコーポレイテッド Printing unit having blanket cylinder support surface
US7516698B2 (en) 2005-03-30 2009-04-14 Goss International Americasn, Inc. Web offset printing press with autoplating
WO2006110539A2 (en) * 2005-04-11 2006-10-19 Goss International Americas, Inc. Print unit with single motor drive permitting autoplating
JP5113353B2 (en) * 2006-07-18 2013-01-09 株式会社ミヤコシ Exchange cylinder type rotary press
DE102009042625A1 (en) * 2008-09-29 2010-04-01 Heidelberger Druckmaschinen Ag Sheet-fed offset printing machine for printing on both sides of sheets
CN102615936A (en) * 2012-04-17 2012-08-01 浙江飞云机械有限公司 Single-piece paper double-side printing machine
CN102632688A (en) * 2012-04-17 2012-08-15 浙江飞云机械有限公司 Method for improving printing quality of printing machine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1827845U (en) * 1959-05-26 1961-03-09 Wilhelm Schluckebier ROTARY PRINTING MACHINE.
DE2214784A1 (en) * 1971-05-14 1972-12-07 VEB Polygraph Leipzig, Kombinat für polygraphische Maschinen und Ausrüstungen, χ 7050 Leipzig Process for the continuous production of book blocks and a printing machine suitable for carrying out this process
US4798137A (en) * 1979-04-20 1989-01-17 Publishers Equipment Corporation Conversion of letterpress to offset printing
DE3048840C1 (en) * 1980-12-23 1983-03-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Reversible direction of rotation drive for a web-fed rotary printing press with a ten-cylinder printing unit
US4494457A (en) * 1981-06-19 1985-01-22 Press Machinery Corporation Apparatus for conversion of a printing press to offset printing
US4488483A (en) * 1982-05-31 1984-12-18 Kabushiki Kaisha Tokyo Kikai Seisakusho Multicolor rotary printing press
DE3313219C2 (en) * 1983-04-13 1985-04-18 Metronic Gerätebau GmbH & Co, 8702 Veitshöchheim Printing unit for a rotary printing press
EP0132858B1 (en) * 1983-07-26 1987-11-19 De La Rue Giori S.A. Perfecting rotary multicolour printing machine
DE3510822C1 (en) * 1985-03-26 1986-07-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Web-fed rotary offset printing machine with flying plate change
US4696229A (en) * 1985-03-26 1987-09-29 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Rotary offset printing press equipped for flying plate change
DE3614029C1 (en) * 1986-04-25 1987-04-02 Roland Man Druckmasch Web-fed rotary offset printing machine with a printing unit for flying plate changes
DE3614030A1 (en) * 1986-04-25 1987-10-29 Roland Man Druckmasch PRINTER FOR A ROLL ROTATION PRINTING MACHINE
DE3644445A1 (en) * 1986-12-24 1988-07-07 Roland Man Druckmasch PRINTING UNIT OF A ROLL OFFSET ROTATIONAL PRINTING MACHINE FOR ALTERNATING PRINTS

Also Published As

Publication number Publication date
EP0276745A3 (en) 1988-11-02
JPS63260440A (en) 1988-10-27
US4934265A (en) 1990-06-19
EP0276745A2 (en) 1988-08-03
DE3861592D1 (en) 1991-02-28
DE3702071C1 (en) 1988-07-14

Similar Documents

Publication Publication Date Title
EP0276745B1 (en) Printing unit suitable for the quick exchange of printing plates
EP0919372B1 (en) Printing unit for a rotary printing machine
EP0796733B1 (en) Printing machine, preferably flexographic press
DE4021895C2 (en) Printing unit of an offset printing machine for performing a flying printing plate change
CH692141A5 (en) Printing unit for on-the-fly printing plate changes.
DE3825145C2 (en)
DE3614029C1 (en) Web-fed rotary offset printing machine with a printing unit for flying plate changes
DE19856906A1 (en) Double printing mechanism for rotary printing press, with transfer cylinders printing web on both sides in rubber-rubber principle adjustable relative to each other
DE3825652A1 (en) FLEXO PRINTING MACHINE
EP0818309A2 (en) Separate drives of a flexographic press
DE3048840C1 (en) Reversible direction of rotation drive for a web-fed rotary printing press with a ten-cylinder printing unit
DE19520841C2 (en) Inking unit for an offset printing unit and method for inking and dampening the printing form
DE2835960B1 (en) Device for damping vibrations in the gear drive transmission of rotary printing machines
DE407369C (en) Rubber printing machine for the continuous printing of paper or fabric webs with two impression cylinders
DE3510822C1 (en) Web-fed rotary offset printing machine with flying plate change
DE4431464A1 (en) Inking process for form cylinder of rotary press with short inking device
EP0615841B1 (en) Printing machine
DE2458772A1 (en) ROTARY PRINTING MACHINE
DE10046367B4 (en) Drive a printing unit
DE4305393C2 (en) Web-fed rotary printing machine with impression mechanism for flying printing plate changes
DE2610126C2 (en) Vibratory roller drive
DE10144563A1 (en) Printing press and method for operating an inking unit
DE2553768C3 (en) Web-fed rotary printing press
DE19853114B4 (en) Double printing unit of a rotary printing machine
DE2942734C2 (en) Inking unit for offset rotary printing machines with an ink return device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19880924

17Q First examination report despatched

Effective date: 19900411

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 3861592

Country of ref document: DE

Date of ref document: 19910228

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19921228

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940121

EUG Se: european patent has lapsed

Ref document number: 88100782.7

Effective date: 19940810

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19971211

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19971231

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980107

Year of fee payment: 11

Ref country code: CH

Payment date: 19980107

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990120

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050120