EP0818309A2 - Separate drives of a flexographic press - Google Patents

Separate drives of a flexographic press Download PDF

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Publication number
EP0818309A2
EP0818309A2 EP97109265A EP97109265A EP0818309A2 EP 0818309 A2 EP0818309 A2 EP 0818309A2 EP 97109265 A EP97109265 A EP 97109265A EP 97109265 A EP97109265 A EP 97109265A EP 0818309 A2 EP0818309 A2 EP 0818309A2
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EP
European Patent Office
Prior art keywords
drive
printing
inking
printing machine
separate
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.)
Withdrawn
Application number
EP97109265A
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German (de)
French (fr)
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EP0818309A3 (en
Inventor
Günter Rogge
Alois Thöle
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP0818309A2 publication Critical patent/EP0818309A2/en
Publication of EP0818309A3 publication Critical patent/EP0818309A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/008—Mechanical features of drives, e.g. gears, clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/15—Machines with cylinders only supported on one side, e.g. cantilever construction

Definitions

  • the invention relates to a printing press, preferably a flexographic printing press, with at least one impression cylinder and several Printing units in which the bearings of the printing cylinders and the inking units with the inking rollers of the individual Printing units on guides of the printing press frame radially or can be moved almost radially to the impression cylinder and at the drive of the pressure cylinder from a central drive, preferably a central wheel is derived.
  • the jackets of the impression cylinder and the impression cylinder revolve at the same peripheral speed. This condition is easy to accomplish when the diameter of the impression cylinder the diameters of the pitch circles of the associated drive gears correspond. Should be different with impression cylinders Diameters are printed, the diameters may only be in Change jumps that correspond to the tooth pitch of the drive gears, because otherwise the cylinder jackets will run in sync is not guaranteed with the impression cylinder jacket. The change in the diameter of the cylinder jackets only in Cracks in the tooth pitch of the associated drive gears are required however, restrictions on the design of the pressure rollers as well of the clichés to be attached to these, which are often undesirable are.
  • the object of the invention is therefore a printing machine of the beginning specified type to create, in which the diameter of the Printing cylinder regardless of the tooth pitch of the associated drive gears can be chosen.
  • this object is achieved in that for Printing cylinder provided a separate common controllable drive is and that between the drive gear and the driven Bearing journals of each pressure roller have a parallelogram coupling is arranged.
  • Parallelogram couplings are machine elements which have an axis offset from each other coupled by this Compensate for parallel waves over an offset distance. Such parallelogram couplings are also known as Schmidt couplings known.
  • the printing press according to the invention can be used in the usual way set up with pressure cylinders of different diameters, whereby however, each impression cylinder is connected to only one drive gear needs to become, without therefore meeting the condition is that the pressure cylinder diameter only changes the pitch of the teeth of the drive gear may change.
  • the Printing machine according to the invention resemble the parallelogram couplings each the axis offset between that of the drive gear driven shaft and the pressure roller coupled with this out. Since the axis offset to be compensated for is only slight, a parallelogram coupling can be used without any problems.
  • the peripheral speed of the printing cylinder can be determined by the separate common controllable drive in a simple manner accurate adjust the peripheral speed of the impression cylinder.
  • the controllable drive is usually an electric motor.
  • the drive gearwheels of the pressure cylinders are preferably driven by a common central wheel. It would be natural also possible through the drive gears of the impression cylinder to drive an endless chain or an endless timing belt. This could also be done via individually controlled electric motors happen.
  • the impression cylinder with a separate one is also expedient Provide drive. This can also be from a central wheel exist with which a driven by a controllable motor Drive pinion combs.
  • impression cylinders for the individual impression cylinders can be by a gear or also from a common chain or a common toothed belt be driven.
  • the inking rollers with a separate controllable drive are provided.
  • This drive can consist of an endless chain or an endless toothed belt.
  • the runs Timing belt or chain on one side of each inking roller via frame-fixed deflection wheels, one of which is radially inward and one radially outward of each inking roller and via a deflection wheel mounted on each inking unit frame looped over each drive wheel of each inking roller, with the chain or timing belt between the outer frame-fixed deflection wheel and the drive wheel and between the deflection wheel mounted on the inking unit frame and the inner one frame-fixed deflection wheel are parallel to each other.
  • the inking rollers of the printing units are expediently both Sides of the printing press each by separate endless chains or toothed belt driven by wheels fixed to the frame are driven by a common running through this Chain or a common toothed belt are driven.
  • the drives of the impression cylinder and the ink application or Anilox rollers are controlled by controlled electric motors.
  • the flexographic printing machine is basically of a known type, which for example from DE 43 08 492 A1 and the stand in this the publications mentioned in the art are known to is referred to for further explanation.
  • the flexographic printing machine shown in the drawing has one from the side parts 1, 2 existing frame in which for all printing units a common impression cylinder 1 stored is.
  • the printing machine frame is on both sides, for example provided consoles apparent from DE 29 41 521 A1, the bearing with guides for the pressure cylinder blocks 4 Carriages are provided, these printing cylinder slides in turn can be provided with guides for inking units 5, if both of the same guides cannot be moved. While in the embodiment described in DE 29 41 521 A1 the inking units from immersion rollers and Ink rollers exist, the one shown in the drawing Flexo printing machine only one anilox roller for each inking unit 7, which in a known and therefore not described manner an ink chamber doctor blade is provided.
  • Shaft journal 12 is freely rotatable and immovable in the axial direction the central wheel 13 is supported by a drive pinion 14 is driven by a controllable motor 15.
  • the the Side walls 1 projecting shaft journal flying in these stored pressure cylinder 6 are by parallelogram clutches 16 with shafts mounted in the uprights or partition walls 17 18 coupled, which penetrate the partition walls 17 Wear ends of drive gears 19.
  • the parallelogram coupling 16 equalizes an axis offset between the drive gears 19th bearing shafts 18 and the shaft journal 20 or of these driven pressure cylinders 6 from.
  • the anilox rollers 7 stored in the inking units 5 are driven by endless belts via the anilox roller gears 33.
  • the anilox rollers 7 on the left side of the flexographic printing machine are of the endless toothed belt 31 and the anilox rollers right side driven by the endless toothed belt 32.
  • the endless toothed belt 31 runs over the deflection wheels fixed to the frame 21, 22, 23, 24 and 34 and the right endless toothed belt 32 about the frame-fixed deflection wheels 25, 26, 27, 28 and 35.
  • the endless toothed belts 31 and 32 are driven by the deflection wheels 22 and 26, which are made correspondingly wide, by a endless toothed belt 38 driven to drive over that driven by the anilox roller motor 40 via a gear stage Gear 39 runs.
  • the endless toothed belt 38 runs in the manner shown continues on frame-fixed deflection wheels 42, 43 and 44 as well as via deflection wheels that can be freely rotated and mounted coaxially to the deflection wheels 21, 25, 34 and 35 are. Furthermore, the drive of the two endless belts runs 31, 32 serving endless belts 38 over the frame-fixed deflection wheel 45.
  • the dreams 46, 47 of the endless toothed belts 31, 32 that between the frame-fixed deflection wheels 24, 28 and the drive gears 33 of the anilox rollers 7 and those mounted on the inking units Deflection wheels 29, 30 and the inner frame-fixed deflection wheels 22, 26 are parallel to each other, so that the endless Toothed belt 31, 32 in a process of the inking blocks experienced no change in length.

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

Abstract

The mountings for the printing cylinders (6), and the inker blocks (5) with the ink-applicator rollers (7) of the separate printers on guides in the printer frame (1) can be radially moved in relation to the counter-printing cylinder (3). The drive of the printing cylinders is produced from a central drive, preferably a central wheel (13). The printing cylinders have a separate, shared controlled drive (14,15). Between the drive cog wheel (19) and the driven shaft journal (20) of each printing roller is a parallelogram coupling (16). The counter printing cylinder has a separate drive (9-11). The ink-applicator rollers have a shared separate controlled drive (22,31,38-41) in the form of a continuous chain or toothed belt running over deflector wheels (22,24,26,28).

Description

Die Erfindung betrifft eine Druckmaschine, vorzugsweise Flexodruckmaschine, mit mindestens einem Gegendruckzylinder und mehreren Druckwerken, bei der die Lagerungen der Druckzylinder und die Farbwerksböcke mit den Farbauftragswalzen der einzelnen Druckwerke auf Führungen des Druckmaschinengestells radial oder nahezu radial zu dem Gegendruckzylinder verfahrbar sind und bei der der Antrieb der Druckzylinder von einem zentralen Antrieb, vorzugsweise einem Zentralrad, abgeleitet ist.The invention relates to a printing press, preferably a flexographic printing press, with at least one impression cylinder and several Printing units in which the bearings of the printing cylinders and the inking units with the inking rollers of the individual Printing units on guides of the printing press frame radially or can be moved almost radially to the impression cylinder and at the drive of the pressure cylinder from a central drive, preferably a central wheel is derived.

Bei einer aus der DE 43 08 492 A1 bekannten Flexodruckmaschine dieser Art ist für sämtliche Druckzylinder ein gemeinsamer Gegendruckzylinder vorgesehen, der von einem Zentralrad, dessen Durchmesser dem Durchmesser des Gegendruckzylinders entspricht, über ein mit diesem kämmendes Antriebsritzel angetrieben wird. Mit dem Zentralrad kämmen auch die Antriebszahnräder sämtliche Druckwalzen, so daß ein einfacher Austausch der Druckzylinder, auch gegen solche mit unterschiedlichem Durchmesser, möglich ist.In a flexographic printing press known from DE 43 08 492 A1 This type is a common impression cylinder for all printing cylinders provided by a central wheel whose diameter corresponds to the diameter of the impression cylinder, about a driven with this meshing drive pinion. With the drive gears also mesh all the pressure rollers with the central wheel, so that an easy replacement of the impression cylinder, too against those with different diameters.

Für einen guten und verschmierungsfreien Druck ist es erforderlich, daß die Mäntel des Gegendruckzylinders und der Druckzylinder mit gleicher Umfangsgeschwindigkeit umlaufen. Diese Bedingung ist leicht zu erfüllen, wenn die Durchmesser der Druckzylinder den Durchmessern der Teilkreise der zugehörigen Antriebszahnräder entsprechen. Soll mit Druckzylindern unterschiedlicher Durchmesser gedruckt werden, dürfen sich die Durchmesser nur in Sprüngen ändern, die der Zahnteilung der Antriebszahnräder entsprechen, weil andernfalls ein Gleichlauf der Druckzylindermäntel mit dem Gegendruckzylindermantel nicht gewährleistet ist. Die Änderung der Durchmesser der Druckzylindermäntel nur in Sprüngen der Zahnteilung der zugehörigen Antriebszahnräder bedingen jedoch Beschränkungen bei der Gestaltung der Druckwalzen sowie der auf diesen zu befestigenden Klischees, die häufig unerwünscht sind.For good and smudge-free printing it is necessary that the jackets of the impression cylinder and the impression cylinder revolve at the same peripheral speed. This condition is easy to accomplish when the diameter of the impression cylinder the diameters of the pitch circles of the associated drive gears correspond. Should be different with impression cylinders Diameters are printed, the diameters may only be in Change jumps that correspond to the tooth pitch of the drive gears, because otherwise the cylinder jackets will run in sync is not guaranteed with the impression cylinder jacket. The change in the diameter of the cylinder jackets only in Cracks in the tooth pitch of the associated drive gears are required however, restrictions on the design of the pressure rollers as well of the clichés to be attached to these, which are often undesirable are.

Aufgabe der Erfindung ist es daher, eine Druckmaschine der eingangs angegebenen Art zu schaffen, bei der die Durchmesser der Druckzylinder unabhängig von der Zahnteilung der zugehörigen Antriebszahnräder gewählt werden können.The object of the invention is therefore a printing machine of the beginning specified type to create, in which the diameter of the Printing cylinder regardless of the tooth pitch of the associated drive gears can be chosen.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß für die Druckzylinder ein separater gemeinsamer steuerbarer Antrieb vorgesehen ist und daß zwischen dem Antriebszahnrad und dem angetriebenen Lagerzapfen jeder Druckwalze eine Parallelogrammkupplung angeordnet ist. Parallelogrammkupplungen sind Maschinenelemente, die einen Achsversatz von durch diese gekuppelten zueinander parallelen Wellen über eine Versatzstrecke ausgleichen. Derartige Parallelogrammkupplungen sind auch als Schmidt-Kupplungen bekannt.According to the invention this object is achieved in that for Printing cylinder provided a separate common controllable drive is and that between the drive gear and the driven Bearing journals of each pressure roller have a parallelogram coupling is arranged. Parallelogram couplings are machine elements which have an axis offset from each other coupled by this Compensate for parallel waves over an offset distance. Such parallelogram couplings are also known as Schmidt couplings known.

Die erfindungsgemäße Druckmaschine läßt sich in üblicher Weise mit Druckzylindern unterschiedlicher Durchmesser einrichten, wobei jedoch jeder Druckzylinder nur mit einem Antriebszahnrad verbunden zu werden braucht, ohne daß also die Bedingung einzuhalten ist, daß sich der Druckzylinderdurchmesser nur in Sprüngen der Teilung der Zähne des Antriebszahnrades ändern darf. Bei der erfindungsgemäßen Druckmaschine gleichen die Parallelogrammkupplungen jeweils den Achsversatz zwischen der von dem Antriebszahnrad getriebenen Welle und der mit dieser gekuppelten Druckwalze aus. Da der jeweils auszugleichende Achsversatz nur gering ist, läßt sich eine Parallelogrammkupplung problemlos einsetzen.The printing press according to the invention can be used in the usual way set up with pressure cylinders of different diameters, whereby however, each impression cylinder is connected to only one drive gear needs to become, without therefore meeting the condition is that the pressure cylinder diameter only changes the pitch of the teeth of the drive gear may change. In the Printing machine according to the invention resemble the parallelogram couplings each the axis offset between that of the drive gear driven shaft and the pressure roller coupled with this out. Since the axis offset to be compensated for is only slight, a parallelogram coupling can be used without any problems.

Die Umfangsgeschwindigkeit der Druckzylinder läßt sich durch den separaten gemeinsamen steuerbaren Antrieb in einfacher Weise genau der Umfangsgeschwindigkeit des Gegendruckzylinders anpassen. Der steuerbare Antrieb ist üblicherweise ein Elektromotor.The peripheral speed of the printing cylinder can be determined by the separate common controllable drive in a simple manner accurate adjust the peripheral speed of the impression cylinder. The controllable drive is usually an electric motor.

In bevorzugter Weise werden die Antriebszahnräder der Druckzylinder durch ein gemeinsames Zentralrad angetrieben. Es wäre natürlich auch möglich, die Antriebszahnräder der Druckzylinder durch eine endlose Kette oder einen endlosen Zahnenriemen anzutreiben. Ebenso könnte dies über einzelne gesteuerte Elektromotoren geschehen.The drive gearwheels of the pressure cylinders are preferably driven by a common central wheel. It would be natural also possible through the drive gears of the impression cylinder to drive an endless chain or an endless timing belt. This could also be done via individually controlled electric motors happen.

Zweckmäßigerweise ist auch der Gegendruckzylinder mit einem separaten Antrieb versehen. Dieser kann ebenfalls aus einem Zentralrad bestehen, mit dem ein von einem steuerbaren Motor angetriebenes Antriebsritzel kämmt.The impression cylinder with a separate one is also expedient Provide drive. This can also be from a central wheel exist with which a driven by a controllable motor Drive pinion combs.

Sind für die einzelnen Druckzylinder eigene Gegendruckzylinder vorgesehen, können diese durch ein Zahnradgetriebe oder aber auch von einer gemeinsamen Kette oder einem gemeinsamen Zahnriemen angetrieben sein.Are separate impression cylinders for the individual impression cylinders provided, these can be by a gear or also from a common chain or a common toothed belt be driven.

Nach einer bevorzugten Ausführungsform ist vorgesehen, daß auch die Farbauftragswalzen mit einem separaten steuerbaren Antrieb versehen sind. Dieser Antrieb kann aus einer endlosen Kette oder einem endlosen Zahnriemen bestehen. Zweckmäßigerweise läuft der Zahnriemen oder die Kette an einer Seite jeder Farbauftragswalze über gestellfeste Umlenkräder, von denen eins radial einwärts und eins radial auswärts zu jeder Farbauftragswalze angeordnet ist, und über ein auf jedem Farbwerksbock gelagertes Umlenkrad schlaufenförmig über jedes Antriebsrad jeder Farbauftragswalze, wobei die Trume der Kette oder des Zahnriemens zwischen dem äußeren gestellfesten Umlenkrad und dem Antriebsrad und zwischen dem auf dem Farbwerksbock gelagerten Umlenkrad und dem inneren gestellfesten Umlenkrad zueinander parallel sind. Bei dieser Ausgestaltung erfährt die endlose Kette oder der endlose Zahnriemen bei einem Verfahren der Farbwerksböcke keine Längenänderung, so daß ein Verfahren der Farbwerksböcke ohne Störung der Antriebe der Farbauftragswalzen möglich ist.According to a preferred embodiment it is provided that the inking rollers with a separate controllable drive are provided. This drive can consist of an endless chain or an endless toothed belt. Conveniently the runs Timing belt or chain on one side of each inking roller via frame-fixed deflection wheels, one of which is radially inward and one radially outward of each inking roller and via a deflection wheel mounted on each inking unit frame looped over each drive wheel of each inking roller, with the chain or timing belt between the outer frame-fixed deflection wheel and the drive wheel and between the deflection wheel mounted on the inking unit frame and the inner one frame-fixed deflection wheel are parallel to each other. With this configuration experiences the endless chain or the endless toothed belt in the case of a movement of the inking units, no change in length, so that a movement of the inking units without disturbing the drives the inking rollers is possible.

Zweckmäßigerweise sind die Farbauftragswalzen der Druckwerke beider Seiten der Druckmaschine jeweils durch getrennte endlose Ketten oder Zahnriemen angetrieben, die von gestellfesten Rädern angetrieben sind, die durch eine gemeinsame über diese laufende Kette oder einen gemeinsamen Zahnriemen angetrieben sind.The inking rollers of the printing units are expediently both Sides of the printing press each by separate endless chains or toothed belt driven by wheels fixed to the frame are driven by a common running through this Chain or a common toothed belt are driven.

Auch die Antriebe des Gegendruckzylinders und der Farbauftrags- bzw. Rasterwalzen erfolgt durch gesteuerte Elektromotoren.The drives of the impression cylinder and the ink application or Anilox rollers are controlled by controlled electric motors.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
eine Seitenansicht einer Flexodruckmaschine mit acht Druckwerken in schematischer Darstellung und
Fig. 2
einen Längsschnitt durch die Flexodruckmaschine nach Fig. 1.
An embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1
a side view of a flexographic printing machine with eight printing units in a schematic representation and
Fig. 2
2 shows a longitudinal section through the flexographic printing machine according to FIG. 1.

Die Flexodruckmaschine ist grundsätzlich bekannter Bauart, die beispielsweise aus DE 43 08 492 A1 und den in dieser zum Stand der Technik genannten Veröffentlichungen bekannt ist, auf die zur näheren Erläuterung verwiesen wird. The flexographic printing machine is basically of a known type, which for example from DE 43 08 492 A1 and the stand in this the publications mentioned in the art are known to is referred to for further explanation.

Die in der Zeichnung dargestellte Flexodruckmaschine weist ein aus den Seitenteilen 1, 2 bestehendes Gestell auf, in dem für sämtliche Druckwerke ein gemeinsamer Gegendruckzylinder 1 gelagert ist.The flexographic printing machine shown in the drawing has one from the side parts 1, 2 existing frame in which for all printing units a common impression cylinder 1 stored is.

Weiterhin ist das Druckmaschinengestell auf beiden Seiten beispielsweise aus der DE 29 41 521 A1 ersichtlichen Konsolen versehen, die mit Führungen für die Druckzylinderböcke 4 tragenden Schlitten versehen sind, wobei diese Druckzylinderschlitten ihrerseits mit Führungen für Farbwerksböcke 5 versehen sein können, wenn nicht beide denselben Führungen verfahrbar sind. Während bei der in der DE 29 41 521 A1 beschriebenen Ausführungsform einer Flexodruckmaschine die Farbwerke aus Tauchwalzen und Einfärbwalzen bestehen, weist die in der Zeichnung dargestellte Flexodruckmaschine für jedes Farbwerk nur noch eine Rasterwalze 7 auf, die in bekannter und daher nicht beschriebener Weise mit einer Farbkammerrakel versehen ist.Furthermore, the printing machine frame is on both sides, for example provided consoles apparent from DE 29 41 521 A1, the bearing with guides for the pressure cylinder blocks 4 Carriages are provided, these printing cylinder slides in turn can be provided with guides for inking units 5, if both of the same guides cannot be moved. While in the embodiment described in DE 29 41 521 A1 the inking units from immersion rollers and Ink rollers exist, the one shown in the drawing Flexo printing machine only one anilox roller for each inking unit 7, which in a known and therefore not described manner an ink chamber doctor blade is provided.

Auf den in dem Seitenteil 1 des Maschinengestells gelagerten Wellenzapfen 8 des Gegendruckzylinders 1 ist das Antriebszahnrad 9 aufgekeilt, das in der schematisch angedeuteten Weise über das Ritzel 10 von dem gesteuerten Antriebsmotor 11 angetrieben wird.On the shaft journal mounted in the side part 1 of the machine frame 8 of the impression cylinder 1 is the drive gear 9 wedged up in the schematically indicated manner over the Pinion 10 is driven by the controlled drive motor 11.

Auf einen den Antriebswellenzapfen 8 verlängernden abgesetzten Wellenzapfen 12 ist frei drehbar und in axialer Richtung unverschieblich das Zentralrad 13 gelagert, das über ein Antriebsritzel 14 von einem steuerbaren Motor 15 angetrieben wird. Die die Seitenwände 1 überragenden Wellenzapfen der in diesen fliegend gelagerten Druckzylinder 6 sind durch Parallelogrammkupplungen 16 mit in den Ständern oder Zwischenwänden 17 gelagerten Wellen 18 gekuppelt, die an ihren die Zwischenwände 17 durchsetzenden Enden Antriebszahnräder 19 tragen. Die Parallelogrammkupplung 16 gleicht einen Achsversatz zwischen den die Antriebszahnräder 19 tragenden Wellen 18 und den Wellenzapfen 20 bzw. den von diesen angetriebenen Druckzylindern 6 aus.Stepped on an extension of the drive shaft journal 8 Shaft journal 12 is freely rotatable and immovable in the axial direction the central wheel 13 is supported by a drive pinion 14 is driven by a controllable motor 15. The the Side walls 1 projecting shaft journal flying in these stored pressure cylinder 6 are by parallelogram clutches 16 with shafts mounted in the uprights or partition walls 17 18 coupled, which penetrate the partition walls 17 Wear ends of drive gears 19. The parallelogram coupling 16 equalizes an axis offset between the drive gears 19th bearing shafts 18 and the shaft journal 20 or of these driven pressure cylinders 6 from.

Die in den Farbwerksböcken 5 gelagerten Rasterwalzen 7 werden über die Rasterwalzenzahnräder 33 von endlosen Riemen angetrieben. Die Rasterwalzen 7 der linken Seite der Flexodruckmaschine werden von dem endlosen Zahnriemen 31 und die Rasterwalzen der rechten Seite von dem endlosen Zahnriemen 32 angetrieben.The anilox rollers 7 stored in the inking units 5 are driven by endless belts via the anilox roller gears 33. The anilox rollers 7 on the left side of the flexographic printing machine are of the endless toothed belt 31 and the anilox rollers right side driven by the endless toothed belt 32.

Der endlose Zahnriemen 31 läuft über die gestellfesten Umlenkräder 21, 22, 23, 24 und 34 und der rechte endlose Zahnriemen 32 über die gestellfesten Umlenkräder 25, 26, 27, 28 und 35. Zum Antrieb der endlosen Zahnriemen 31 und 32 werden die Umlenkräder 22 und 26, die entsprechend breit ausgeführt sind, durch einen endlosen Zahnriemen 38 angetrieben, der zu seinem Antrieb über das über eine Getriebestufe von dem Rasterwalzenmotor 40 angetriebene Zahnrad 39 läuft. Der endlose Zahnriemen 38 läuft in der dargestellten Weise weiterhin über gestellfeste Umlenkräder 42, 43 und 44 sowie über Umlenkräder, die frei drehbar und gleichachsig zu den Umlenkrädern 21, 25, 34 und 35 gelagert sind. Weiterhin läuft der dem Antrieb der beiden endlosen Riemen 31, 32 dienende endlose Riemen 38 über das gestellfeste Umlenkrad 45.The endless toothed belt 31 runs over the deflection wheels fixed to the frame 21, 22, 23, 24 and 34 and the right endless toothed belt 32 about the frame-fixed deflection wheels 25, 26, 27, 28 and 35. Zum The endless toothed belts 31 and 32 are driven by the deflection wheels 22 and 26, which are made correspondingly wide, by a endless toothed belt 38 driven to drive over that driven by the anilox roller motor 40 via a gear stage Gear 39 runs. The endless toothed belt 38 runs in the manner shown continues on frame-fixed deflection wheels 42, 43 and 44 as well as via deflection wheels that can be freely rotated and mounted coaxially to the deflection wheels 21, 25, 34 and 35 are. Furthermore, the drive of the two endless belts runs 31, 32 serving endless belts 38 over the frame-fixed deflection wheel 45.

Die Trume 46, 47 der endlosen Zahnriemen 31, 32, die zwischen den gestellfesten Umlenkrädern 24, 28 und den Antriebszahnrädern 33 der Rasterwalzen 7 sowie den auf den Farbwerksböcken gelagerten Umlenkrädern 29, 30 und den inneren gestellfesten Umlenkrädern 22, 26 verlaufen, sind parallel zueinander, so daß die endlosen Zahnriemen 31, 32 bei einem Verfahren der Farbwerksböcke keine Längenänderung erfahren.The dreams 46, 47 of the endless toothed belts 31, 32 that between the frame-fixed deflection wheels 24, 28 and the drive gears 33 of the anilox rollers 7 and those mounted on the inking units Deflection wheels 29, 30 and the inner frame-fixed deflection wheels 22, 26 are parallel to each other, so that the endless Toothed belt 31, 32 in a process of the inking blocks experienced no change in length.

Claims (6)

Druckmaschine, vorzugsweise Flexodruckmaschine, mit mindestens einem Gegendruckzylinder (3) und mehreren Druckwerken, bei der die Lagerungen der Druckzylinder (6) und die Farbwerksböcke (5) mit den Farbauftragswalzen (7) der einzelnen Druckwerke auf Führungen des Druckmaschinengestells (1) radial oder nahezu radial zu dem Gegendruckzylinder (3) verfahrbar sind und bei der der Antrieb der Druckzylinder (6) von einem zentralen Antrieb, vorzugsweise einem Zentralrad (13) abgeleitet ist,
dadurch gekennzeichnet,
daß für die Druckzylinder (6) ein separater, gemeinsamer steuerbarer Antrieb (14, 15) vorgesehen ist und daß zwischen dem Antriebszahnrad (19) und dem angetriebenen Wellenzapfen (20) jeder Druckwalze (6) eine Parallelogrammkupplung (16) angeordnet ist.Printing machine, preferably flexographic printing machine, with at least one impression cylinder (3) and several printing units, in which the bearings of the printing cylinders (6) and the inking units (5) with the inking rollers (7) of the individual printing units on guides of the printing machine frame (1) radially or almost can be moved radially to the impression cylinder (3) and in which the drive of the pressure cylinder (6) is derived from a central drive, preferably a central wheel (13),
characterized,
that a separate, jointly controllable drive (14, 15) is provided for the printing cylinder (6) and that a parallelogram coupling (16) is arranged between the drive gear (19) and the driven shaft journal (20) of each printing roller (6). Druckmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Gegendruckzylinder (3) mit einem separaten Antrieb (9, 10, 11) versehen ist. Printing machine according to claim 1, characterized in that the impression cylinder (3) with a separate drive (9, 10, 11) is provided. Druckmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Farbauftragswalzen (7) mit einem gemeinsamen separaten steuerbaren Antrieb (22, 31, 38, 39, 40, 41) versehen sind.Printing machine according to claim 1 or 2, characterized in that the inking rollers (7) with a common separate controllable drive (22, 31, 38, 39, 40, 41) are. Druckmaschine nach Anspruch 3, dadurch gekennzeichnet, daß der Antrieb der Farbauftragswalzen (7) aus einer endlosen Kette oder einem endlosen Zahnriemen (31, 32, 38) besteht.Printing machine according to claim 3, characterized in that the drive of the inking rollers (7) from an endless Chain or an endless toothed belt (31, 32, 38). Druckmaschine nach Anspruch 4, dadurch gekennzeichnet, daß die Kette oder der Zahnriemen (31, 32) über gestellfeste Umlenkräder (22, 26, 24, 28), von denen eins (22, 26) radial einwärts und eins (24, 28) radial auswärts zu jeder Farbauftragswalze (7) angeordnet ist, und über ein auf jedem Farbwerksbock (4) gelagerten Umlenkrad (29, 30) schlaufenartig über jedes Antriebsrad (33) jeder Farbauftragswalze (7) läuft und daß die Trume der Kette oder des Zahnriemens (31, 32) zwischen dem äußeren gestellfesten Umlenkrad (24, 28) und dem Antriebsrad (33) und zwischen dem auf jedem Farbwerksbock (5) gelagerten Umlenkrad (29, 30) und dem inneren gestellfesten Umlenkrad (22, 26) zueinander parallel sind.Printing machine according to claim 4, characterized in that the chain or the toothed belt (31, 32) via deflection wheels fixed to the frame (22, 26, 24, 28), one of which (22, 26) radial inward and one (24, 28) radially outward to each inking roller (7) is arranged, and over one on each inking unit (4) mounted deflection wheel (29, 30) like a loop over each drive wheel (33) of each inking roller (7) runs and that the dreams of the chain or toothed belt (31, 32) between the outer guide wheel fixed to the frame (24, 28) and the drive wheel (33) and between that on each inking unit (5) bearing deflection wheel (29, 30) and the inner frame-fixed deflection wheel (22, 26) are parallel to each other. Druckmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Farbauftragswalzen (7) der Druckwerke beider Seiten der Druckmaschine jeweils durch getrennte endlose Ketten oder Zahnriemen (31, 32) angetrieben sind, die von gestellfesten Rädern (22, 23) angetrieben sind, die durch eine gemeinsame über diese laufende Kette einen gemeinsamen Zahnriemen (38) angetrieben sind.Printing machine according to one of claims 1 to 5, characterized in that that the inking rollers (7) of the printing units both sides of the printing press each by separate endless Chains or timing belts (31, 32) are driven, the are driven by wheels (22, 23) fixed to the frame which through a common one over this ongoing chain Toothed belts (38) are driven.
EP97109265A 1996-07-08 1997-06-07 Separate drives of a flexographic press Withdrawn EP0818309A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627478 1996-07-08
DE19627478A DE19627478C2 (en) 1996-07-08 1996-07-08 Printing press

Publications (2)

Publication Number Publication Date
EP0818309A2 true EP0818309A2 (en) 1998-01-14
EP0818309A3 EP0818309A3 (en) 1998-07-22

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ID=7799246

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Application Number Title Priority Date Filing Date
EP97109265A Withdrawn EP0818309A3 (en) 1996-07-08 1997-06-07 Separate drives of a flexographic press

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Country Link
EP (1) EP0818309A3 (en)
JP (1) JPH1067097A (en)
KR (1) KR980008567A (en)
CN (1) CN1172729A (en)
BR (1) BR9703892A (en)
CZ (1) CZ161397A3 (en)
DE (1) DE19627478C2 (en)
TW (1) TW369483B (en)

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WO2007034159A2 (en) 2005-09-21 2007-03-29 Focus Label Machinery Ltd A printer
AT514850A5 (en) * 2011-12-23 2015-04-15 Security Printing Inst Of People S Bank Of China Method and device for ink transfer and supply and printing equipment with the device

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DE19826891A1 (en) 1998-06-17 1999-12-23 Heidelberger Druckmasch Ag Sheet-fed rotary printing machine
JP2007062354A (en) 2005-08-30 2007-03-15 Samsung Sdi Co Ltd Laser thermal transfer donor film, laser thermal transfer apparatus, laser thermal transfer method, and manufacturing apparatus for organic light-emitting element
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US7817175B2 (en) 2005-08-30 2010-10-19 Samsung Mobile Display Co., Ltd. Laser induced thermal imaging apparatus and fabricating method of organic light emitting diode using the same
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CN102350857A (en) * 2011-07-04 2012-02-15 潍坊东航印刷科技股份有限公司 Printing-roller servo device of flexographic printer
CN103331993A (en) * 2013-06-09 2013-10-02 苏州金科信汇光电科技有限公司 Printing device capable of adjusting printing pressure automatically
CN103287062A (en) * 2013-06-09 2013-09-11 苏州金科信汇光电科技有限公司 Printing servo device with adjustable printing length
CN112918072A (en) * 2021-01-25 2021-06-08 合力包装科技(青州)有限公司 Shaft extraction equipment for printing machine of flexographic printing machine

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EP1728628A1 (en) * 2005-06-01 2006-12-06 Kba-Giori S.A. Typographic printing machine with independent drive means
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WO2007034159A3 (en) * 2005-09-21 2007-10-18 Focus Label Machinery Ltd A printer
AT514850A5 (en) * 2011-12-23 2015-04-15 Security Printing Inst Of People S Bank Of China Method and device for ink transfer and supply and printing equipment with the device
AT514850B1 (en) * 2011-12-23 2015-08-15 Security Printing Inst Of People S Bank Of China Method and device for ink transfer and supply and printing equipment with the device

Also Published As

Publication number Publication date
DE19627478C2 (en) 1998-04-23
KR980008567A (en) 1998-04-30
EP0818309A3 (en) 1998-07-22
BR9703892A (en) 1998-09-22
DE19627478A1 (en) 1998-01-15
CZ161397A3 (en) 1998-02-18
TW369483B (en) 1999-09-11
CN1172729A (en) 1998-02-11
JPH1067097A (en) 1998-03-10

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