EP0531880B1 - Method and means for adjusting eccentric rings for cylinders in printing machines - Google Patents

Method and means for adjusting eccentric rings for cylinders in printing machines Download PDF

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Publication number
EP0531880B1
EP0531880B1 EP92115050A EP92115050A EP0531880B1 EP 0531880 B1 EP0531880 B1 EP 0531880B1 EP 92115050 A EP92115050 A EP 92115050A EP 92115050 A EP92115050 A EP 92115050A EP 0531880 B1 EP0531880 B1 EP 0531880B1
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EP
European Patent Office
Prior art keywords
cylinder
force
forme
cylinders
blanket
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EP92115050A
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German (de)
French (fr)
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EP0531880A1 (en
Inventor
Christian Martin Michael Fischer
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Koenig and Bauer AG
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Koenig and Bauer Albert AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/24Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26Arrangement of cylinder bearings
    • B41F13/28Bearings mounted eccentrically of the cylinder axis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung betrifft ein Verfahren und eine Anordnung zum Einstellen von Exzenterbuchsen für Zylinder von Druckmaschinen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a method and an arrangement for adjusting eccentric bushes for cylinders of printing machines according to the preamble of patent claim 1.

Bei den Druckwerken von Offset-Rollenrotationsdruckmaschinen müssen alle am Druckprozeß beteiligten Elemente, vor allem Zahnräder und Zylinder sowie Zylinderlagerungen, mit höchster Präzision gefertigt und montiert sein. Andernfalls treten Druckmängel in Form von Zahn-, Walzen-, oder Kanalstreifen, oder gar die gefürchteten Doubliererscheinungen auf, bei denen die einzelnen Rasterpunkte Doppeldruck, kommaartige Verlängerungen oder Schatten bzw. Punktverbreiterungen aufweisen. Um diesen Gefahren zu begegnen, ist es üblich, auf beiden Stirnseiten der Druck-, Gummi- und Plattenzylinder sogenannte Schmitz- oder Laufringe anzubringen. Diese Schmitz- oder Laufringe sind Stahlringe, die gehärtet und geschliffen und auf genauestes Maß gearbeitet sind. Sie werden auf die Stirnseiten der Platten-, Druck- und Gummizylinder aufgezogen oder angeflanscht. Während des Druckens rollen die Schmitzringe unter gegenseitigem starkem Druck praktisch unter Linienberührung aufeinander ab. Die Schmitzringe versteifen das gesamte Druckwerk, weil die einzelnen Zylinder unter Vorspannung abrollen.In the printing units of offset web-fed rotary printing presses, all elements involved in the printing process, especially gearwheels and cylinders as well as cylinder bearings, must be manufactured and assembled with the highest precision. Otherwise there are printing defects in the form of toothed, roller or channel strips, or even the dreaded duplication phenomena in which the individual halftone dots have double printing, comma-like extensions or shadows or point widening. In order to counter these dangers, it is customary to attach so-called bearer rings or races on both end faces of the pressure, rubber and plate cylinders. These bearer rings or races are steel rings that are hardened and ground and worked to the most exact measure. They are mounted or flanged onto the end faces of the plate, pressure and rubber cylinders. During printing, the bearer rings roll under each other under strong pressure, practically with line contact. The bearer rings stiffen the entire printing unit because the individual cylinders roll under pre-tension.

Sie dämpfen die Zylinderschwingungen und bewirken daher einen ruhigeren Maschinenlauf. Außerdem verhüten sie bei den Kanal-An- und Abläufen Laufunruhe und daher Markierungen auf den bedruckten Bogen. Sie verhindern, daß in den sog. Zylinderkanälen, wo die Druckspannung ohne Schmitzringe plötzlich zusammenbrechen würde, die Zylinder ihren Abstand verringern und anschließend beim Druckeinsatz wieder geringfügig auseinandergehen.They dampen the cylinder vibrations and therefore cause the machine to run more smoothly. In addition, they prevent uneven running of the sewers and drains and therefore markings on the printed sheet. They prevent that in the so-called cylinder channels, where the compressive stress would suddenly collapse without bearer rings, the cylinders reduce their distance and then diverge slightly again when pressure is used.

Der Einsatz von Schmitzringen bedingt jedoch, daß ein Verstellen der Abstände der zusammenwirkenden Zylinder nicht möglich ist. Das hat zur Folge, daß die Aufzugstärken auf den Zylindern genauestens eingehalten werden müssen, um auf einen richtigen Anpreßdruck zu kommen. Soll die Länge des Druckbildes verändert werden, so muß ein neuer Plattenaufzug angefertigt werden. Daraus folgt wegen des fixen Zylinderabstandes, daß auch der Aufzug auf dem Gummizylinder verändert werden muß, obwohl man ihn unverändert lassen möchte. Soll umgekehrt der Aufzug auf dem Gummizylinder aus irgendeinem Grunde verändert werden, so hat das zwangsläufig auch die Änderung des Plattenzylinderumfanges zur Folge, so daß eine womöglich richtige Drucklänge verschlechtert wird.However, the use of bearer rings means that it is not possible to adjust the distances between the interacting cylinders. The consequence of this is that the elevator strengths on the cylinders must be adhered to precisely in order to achieve the correct contact pressure. If the length of the printed image is to be changed, a new plate elevator must be made. Because of the fixed cylinder spacing, this means that the lift on the rubber cylinder must also be changed, even though you want to leave it unchanged. Conversely, if the elevator on the rubber cylinder is to be changed for any reason, this inevitably also results in a change in the circumference of the plate cylinder, so that a possibly correct printing length is deteriorated.

Gemäß DE-OS 27 36 175 ist ein Druckwerk für eine Offset-Rollenrotationsdruckmaschine bekannt, welches ohne Schmitzringe arbeitet. Die Vorspannung der Zylinder für die Druckwerke zwischen zwei benachbarten Druckmaschinenzylindern erfolgt auf die Zylinderzapfen über Lager mittels Druckfedern oder durch druckmittelbeaufschlagbare Arbeitszylinder.According to DE-OS 27 36 175, a printing unit for an offset web-fed rotary printing press is known, which works without bearer rings. The cylinders for the printing units are preloaded between two adjacent printing press cylinders on the cylinder journal via bearings using pressure springs or working cylinders that can be pressurized with pressure medium.

Nachteilig bei diesem Druckwerk ist, daß zusätzliche Federkraftspeicher oder druckmittelbeaufschlagbare Arbeitszylinder eingesetzt werden müssen.A disadvantage of this printing unit is that additional spring energy stores or working cylinders that can be pressurized must be used.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Anordnung zum Druckanstellen von Zylindern spielbehafteter Exzenterbuchsen bei Druckmaschinen zu schaffen, ohne Qualitätsmängel inkaufnehmen zu müssen.The invention has for its object to provide a method and an arrangement for pressure adjustment of cylinders of playful eccentric bushings in printing presses without having to accept quality defects.

Diese Aufgabe wird erfindungsgemäß durch den kennzeichnenden Teil der Patentansprüche 1 und 7 gelöst.This object is achieved by the characterizing part of claims 1 and 7.

Die Vorteile der erfindungsgemäßen Lösung bestehen insbesondere darin, daß durch das lage- und richtungsorientierte Ansetzen der Anstellkraft an die Flansche der Exzenterbuchsen für die Zylinder mittels der druckmittelbeaufschlagbaren Arbeitszylinder entsprechend der Resultierenden der Druckkraft gesichert ist, daß das Spiel der Lagerbuchsen eleminiert ist, ohne Laufringe, sog. Schmitzringe zu verwenden. So können die Druckzylinder nicht ins Schwingen geraten bei Druckanstellung. Auf diese Art und Weise werden auch Schwingungen vermieden, die durch die Kanaldurchläufe entstehen.The advantages of the solution according to the invention are, in particular, that the position and direction-oriented application of the contact force to the flanges of the eccentric bushes for the cylinders by means of the working cylinders which can be acted upon by pressure medium ensures that the play of the bearing bushes is eliminated, without races, to use so-called bearer rings. This means that the pressure cylinders cannot vibrate when the pressure is switched on. In this way, vibrations caused by the channel runs are also avoided.

Die Erfindung soll nachfolgend an einem Ausführungsbeispiel näher erläutert werden. Die zugehörigen Zeichnungen zeigen

Fig. 1
die schematische Darstellung eines Mehrzylinderdruckwerkes in der Seitenansicht,
Fig. 2
die Seitenansicht eines an- und abstellbaren Druckzylinders,
Fig. 3 bis 5
Kräftediagramme entsprechend der Zylinderanordnung nach Fig. 1.
The invention is intended in one Embodiment will be explained in more detail. The associated drawings show
Fig. 1
the schematic representation of a multi-cylinder printing unit in side view,
Fig. 2
the side view of an adjustable and removable pressure cylinder,
3 to 5
Force diagrams corresponding to the cylinder arrangement according to FIG. 1.

Gemäß Fig. 1 ist die schematische Darstellung eines Mehrzylinderdruckwerkes einer Y-Offset-Rollenrotationsdruckmaschine gezeigt mit den Druckwerkszylindern 1 bis 6, wobei die Druckwerkszylinder 1; 4; 6 als Formyzlinder und die Druckwerkszylinder 2; 3; 5 als Gummizylinder ausgebildet sind. Die Druckwerkszylinder 1 bis 6 sind mit ihren als Kreuz symbolisch dargestellten Wellenzapfen beidseitig im Maschinengestell 7 nach Fig. 2 gelagert. Die Formzylinder 1; 4; 6 sind mit ihren Wellenstümpfen beidseitig in Wälzlagern gelagert und besitzen ein Lagerspiel, welches gegen Null geht. Die Druckwerkszylinder 2; 4; 5 sind beidseitig in Wälzlagern 8 gelagert, die von Exzenterbuchsen 9 aufgenommen wurden. Das Exzenterbuchsenlagerspiel beträgt hier etwa 0,05 mm. Die Druckwerkszylinder 1 bis 6 sind wie folgt gegeneinander anstellbar: 2 an 1 und an 3, 4 an 3 und 5 an 6 und an 3. Die Druckwerkszylinder 2; 4; 5 erhalten ihre Vorspannung zum Ausgleich des Spieles a der Exzenterbuchsen 9 mittels Hebelgestängen, welche mit den Kolbenstangen 11 von Arbeitszylindern 12; 13; 14 verbunden sind. Die Arbeitszylinder 12 bis 14 können als hydraulische oder pneumatische Arbeitszylinder ausgeführt sein. Die Arbeitszylinder 12 bis 14 besitzen jeweils Öffnungen 16; 17, die mit einer nicht dargestellten Steueranlage für das Arbeitsmedium in Verbindung stehen. Weiterhin sind die Arbeitszylinder 12 bis 14 im Maschinengestell 7 mittels Schrauben 18 befestigt. Das Hebelgestänge besteht jeweils aus einem mit dem Ende der Kolbenstange 11 gelenkig verbundenen Winkelhebel 19, welcher im Punkt 21 des Maschinengestells 7 gelagert und an seinem anderen Ende mit einer Koppel 22 im Krafteinleitungspunkt 20 gelenkig verbunden ist. Die Koppel 22 ist ebenfalls gelenkig mit einem Flansch 23 verbunden, welcher wiederum form- und kraftschlüssig mit der Exzenterbuchse 9 in Verbindung steht. Weiterhin sind auf den Exzenterbuchsen 9 des Druckwerkszylinder 2; 4; 5 jeweils Flansche 24 form- und kraftschlüssig befestigt, welche mit einer Nase gegen ein gestellfestes Widerlager 26 im Gegenkrafteinleitungspunkt 25 drücken. Durch Betätigen der Arbeitszylinder 12 bis 14 können die Druckwerkszylinder 2; 4; 5 an die Druckwerkszylinder 1; 3; 6 angestellt werden, so daß die Papierbahn 27 auf der linken Seite zweimal und auf der rechten Seite einmal mit hoher Qualität bedruckt werden kann und über die Papierleitwalze 28 das Mehrzylinderdruckwerk verläßt.1, the schematic representation of a multi-cylinder printing unit of a Y offset web-fed rotary printing press is shown with the printing unit cylinders 1 to 6, the printing unit cylinders 1; 4; 6 as Formyzlinder and the printing unit cylinder 2; 3; 5 are designed as rubber cylinders. The printing unit cylinders 1 to 6 are mounted with their shaft journals symbolically represented as a cross on both sides in the machine frame 7 according to FIG. 2. The forme cylinder 1; 4; 6 are supported by their shaft ends on both sides in roller bearings and have a bearing clearance which is close to zero. The printing unit cylinder 2; 4; 5 are mounted on both sides in roller bearings 8, which were received by eccentric bushings 9. The eccentric bushing bearing clearance here is approximately 0.05 mm. The printing unit cylinders 1 to 6 can be adjusted against one another as follows: 2 on 1 and on 3, 4 on 3 and 5 on 6 and on 3. The printing unit cylinders 2; 4; 5 get their preload to compensate for the game a of the eccentric bushes 9 by means of lever linkages which are connected to the piston rods 11 of working cylinders 12; 13; 14 are connected. The working cylinders 12 to 14 can be designed as hydraulic or pneumatic working cylinders. The working cylinders 12 to 14 each have openings 16; 17, which are connected to a control system, not shown, for the working medium. Furthermore, the working cylinders 12 to 14 are fastened in the machine frame 7 by means of screws 18. The lever linkage consists in each case of an angle lever 19 which is articulated to the end of the piston rod 11 and which is mounted in the point 21 of the machine frame 7 and is articulated at its other end to a coupling 22 in the force introduction point 20. The coupling 22 is also connected in an articulated manner to a flange 23, which in turn is connected to the eccentric bushing 9 in a positive and non-positive manner. Furthermore, on the eccentric bushes 9 of the printing couple cylinder 2; 4; 5 each flanges 24 fastened positively and non-positively, which press with a nose against an abutment 26 which is fixed to the frame at the counter-force introduction point 25. By actuating the working cylinders 12 to 14, the printing couple cylinders 2; 4; 5 to the printing unit cylinder 1; 3; 6 are set so that the paper web 27 can be printed twice on the left side and once on the right side with high quality and leaves the multi-cylinder printing unit via the paper guide roller 28.

Gemäß Fig. 3 bis 5 sind Kräftediagramme dargestellt, die sich auf die anstellbaren Druckwerkszylinder 2; 4; 5 beziehen.
Gemäß Fig. 3 wird der Kräfteverlauf im austellbaren Gummizylinder 2 dargestellt. Daraus ist zu erkennen, daß die Gesamtresultierende R2 in einem Winkeln α ± 45° zur Resultierenden r2 der Druckkräfte Z1; Z3 der benachbarten Druckwerkszylinder 1; 3 verläuft.
3 to 5 force diagrams are shown, which refer to the adjustable printing unit cylinder 2; 4; 5 Respectively.
According to FIG. 3, the course of forces in the expandable rubber cylinder 2 is shown. From this it can be seen that the total resultant R2 at an angle α ± 45 ° to the resultant r2 of the compressive forces Z1; Z3 of the adjacent printing unit cylinders 1; 3 runs.

Das Gewicht G2 des Gummizylinders 2 sowie die Kräfte Z1 und Z3 der benachbarten Druckwerkszylinder 1; 3 sowie die gewünschte Richtung der Gesamtresultierenden R2 bestimmen die Lage und Größe der Kräfte K22 und K26, die von der Koppel 22 des Arbeitszylinders 12 bzw. von dem Widerlager 26 des Gummizylinders 2 im Maschinengestell 7 aufgenommen wird. Die Kräfte gemäß Fig. 3 können sein: Z1 = 650 daN, Z3 = 650 daN, G2 = 375 daN, R2 = 1.700 daN, K22 = 840 daN, K26 = 840 daN. Der Winkeln α beträgt ca. 25°. Dadurch, daß die Gesamtresuliertende R2 immer in Richtung der resultierenden Kräfte der benachbarten Druckwerkszylinder 1; 3 verläuft, wird während des Betriebszustandes ein ruhiger Lauf der Druckwerkszylinder gewährleistet, auch bei Kanaldurchlauf. Aus Fig. 3 ist weiterhin ersichtlich, daß sich das Widerlager 26 mit dem Gegenkrafteinleitungspunkt 25 im I. Quadranten und die Koppel 22 mit dem Krafteinleitungspunkt 20 im III. Quadranten, die Resultierenden r2 und R2 sich jedoch dazwischen, d. h. im II. Quadranten befinden.The weight G2 of the blanket cylinder 2 and the forces Z1 and Z3 of the adjacent printing unit cylinder 1; 3 and the desired direction of the overall resultant R2 determine the position and magnitude of the forces K22 and K26, which is absorbed by the coupling 22 of the working cylinder 12 or by the abutment 26 of the rubber cylinder 2 in the machine frame 7. The forces according to FIG. 3 can be: Z1 = 650 daN, Z3 = 650 daN, G2 = 375 daN, R2 = 1,700 daN, K22 = 840 daN, K26 = 840 daN. The angle α is approximately 25 °. Characterized in that the overall result R2 always in the direction of the resulting forces of the adjacent printing unit cylinder 1; 3 runs, the printing unit cylinder is guaranteed to run smoothly during the operating state, even when the channel is running through. From Fig. 3 it can also be seen that the abutment 26 with the counterforce application point 25 in the 1st quadrant and the coupling 22 with the force application point 20 in III. Quadrants, however, the resultants r2 and R2 are in between, i.e. H. located in the second quadrant.

Gemäß Fig. 4 wird der Kräfteverlauf im anstellbaren Formzylinder 4 dargestellt. Daraus ist ersichtlich, daß die Gesamtresultierende R4 ebenfalls in einem Winkel α ± 45° zur Resultierenden r4 der Druckkraft Z3 des benachbarten Druckwerkszylinders 3 verläuft. Das Gewicht G4 des Formzylinders 4; die Kraft Z3 des benachbarten Druckwerkszylinders 3 sowie die gewünschte Richtung der Gesamtresultierenden R4 bestimmt die Lage und Größe der Kräfte K22 und K26, die von der Koppel 22 des Arbeitszylinders 13 bzw. von dem Widerlager 26 des Formzylinders 4 im Maschinengestell 7 aufgenommen wird. Die Kräfte gemäß Fig. 4 können sein: Z3 = 650 daN, G4 = 375 daN, R4 = 1.850 daN, K22 = 760 daN, K26 = 760 daN. Der Winkel α beträgt ca. 39°.
Aus Fig. 4 ist weiterhin ersichtlich, daß sich das Widerlager 26 im I. Quadranten und die Koppel 22 mit dem Krafteinleitungspunkt 20 im II. Quadranten, die Resultierenden r4 und R4 sich jedoch dazwischen, d. h. im IV. Quadranten befinden.
4, the course of forces in the adjustable forme cylinder 4 is shown. From this it can be seen that the total resultant R4 also at an angle α ± 45 ° to the resultant r4 of the compressive force Z3 of the adjacent printing unit cylinder 3. The weight G4 of the forme cylinder 4; the force Z3 of the adjacent printing unit cylinder 3 and the desired direction of the overall resultant R4 determine the position and magnitude of the forces K22 and K26, which is absorbed by the coupling 22 of the working cylinder 13 or by the abutment 26 of the forme cylinder 4 in the machine frame 7. The forces according to FIG. 4 can be: Z3 = 650 daN, G4 = 375 daN, R4 = 1,850 daN, K22 = 760 daN, K26 = 760 daN. The angle α is approximately 39 °.
From Fig. 4 it can also be seen that the abutment 26 in the 1st quadrant and the coupling 22 with the force application point 20 in the 2nd quadrant, but the resultant r4 and R4 are in between, ie in the 4th quadrant.

Gemäß Fig. 5 wird der Kräfteverlauf im anstellbaren Gummizylinder 5 dargestellt. Hieraus ist ebenfalls zu erkennen, daß die Gesamtresultierende R5 in einem Winkel α ± 45° zur Resultiernden r5 der Druckkräfte Z3 und Z6 der benachbarten Druckwerkszylinder 3; 6 verläuft. Das Gewicht G5 des Gummizylinders 5 sowie die Kräfte Z3 und Z6 der benachbarten Druckwerkszylinder 3; 6 sowie die gewünschte Richtung der Gesamtresultierenden R5 bestimmen die Lage und Größe der Kräfte K22 und K26, die von der Koppel 22 des Arbeitszylinders 14 bzw. von dem Widerlager 26 des Gummizylinders 5 im Maschinengestell 7 aufgenommen wird.
Die Kräfte gemäß Fig. 5 können sich: Z3 = 650 daN, Z6 = 650 daN, G5 = 375 daN, R5 = 1.350 daN, K22 = 760 daN, K26 = 760 daN. Der Winkel α beträgt ca. 11°.
5, the course of forces in the adjustable rubber cylinder 5 is shown. From this it can also be seen that the total resultant R5 at an angle α ± 45 ° to the resultant r5 of the pressure forces Z3 and Z6 of the adjacent printing unit cylinders 3; 6 runs. The weight G5 of the blanket cylinder 5 and the forces Z3 and Z6 of the adjacent printing unit cylinders 3; 6 and the desired direction of the overall resultant R5 determine the position and magnitude of the forces K22 and K26, which is absorbed by the coupling 22 of the working cylinder 14 or by the abutment 26 of the rubber cylinder 5 in the machine frame 7.
The forces according to FIG. 5 can be: Z3 = 650 daN, Z6 = 650 daN, G5 = 375 daN, R5 = 1,350 daN, K22 = 760 daN, K26 = 760 daN. The angle α is approximately 11 °.

Aus Fig. 5 ist ebenso ersichtlich, daß sich das Widerlager 26 im IV. Quadranten und die Koppel 22 mit dem Krafteinleitungspunkt 20 im II. Quadranten, die Resultierenden r5 und R5 sich jedoch dazwischen, d. h. im I. Quadranten befinden.From Fig. 5 it can also be seen that the abutment 26 in the fourth quadrant and the coupling 22 with the force application point 20 in the second quadrant, but the resultant r5 and R5 between them, i. H. located in the 1st quadrant.

Gemäß Fig. 1 ist es auch möglich, die Druckwerkszylinder 1 bis 4 in der gezeigten Lage anzuordnen. Dann treffen die in Fig. 3 und 4 gezeigten Kräftediagramme zu. Weiterhin ist es möglich, unter Weglassen der Druckwerkszylinder 5 und 6 nach Fig. 1, die Druckwerkszylinder 1 bis 4 um 180° zu verdrehen als Druckwerkszylinder 1' bis 4' und diese statt der Druckwerkszylinder 5; 6 anzuordnen. Die Kräfte entsprechen etwa denen in Fig. 3 und 4 gezeigten, mit dem Unterschied, daß sich die Resultierenden r2'; R2' im IV. Quadranten und die Resultierenden r4'; R4' im II. Quadranten befinden.1, it is also possible to arrange the printing couple cylinders 1 to 4 in the position shown. Then the force diagrams shown in FIGS. 3 and 4 apply. Furthermore, it is possible, with omission of the printing unit cylinders 5 and 6 according to FIG. 1, to rotate the printing unit cylinders 1 to 4 by 180 ° as printing unit cylinders 1 'to 4' and these instead of the printing unit cylinders 5; 6 to arrange. The forces correspond approximately to those shown in FIGS. 3 and 4, with the difference that the resultants r2 '; R2 'in the fourth quadrant and the resultant r4'; R4 'are in the second quadrant.

Die Quadranten beziehen sich auf ein rechtwinkliges Koordinatensystem mit Quadranten, welche durch die X-Achse und Y-Achse begrenzt werden. Der Schnittpunkt der X-Achse mit der Y-Achse liegt auf der Rotationsachse der Druckwerkszylinder. Die Quadranten verlaufen nach ihrer Bezeichnung I bis IV entgegen dem Uhrzeigersinn und beginnen mit I. Quadrant: X-Achse und Y-Achse positiv; II. Quadrant: X-Achse negativ, Y-Achse positiv; III. Quadrant: X-Achse und Y-Achse negativ; IV. Quadrant: X-Achse positiv, Y-Achse negativ.The quadrants refer to a right-angled coordinate system with quadrants, which are delimited by the X-axis and Y-axis. The intersection of the X axis with the Y axis lies on the axis of rotation of the printing unit cylinders. The quadrants run counterclockwise according to their designations I to IV and begin with I. Quadrant: X-axis and Y-axis positive; II. Quadrant: X axis negative, Y axis positive; III. Quadrant: X axis and Y axis negative; IV. Quadrant: X-axis positive, Y-axis negative.

TeilelisteParts list

11
FormzylinderForme cylinder
22nd
GummizylinderRubber cylinder
33rd
GummizylinderRubber cylinder
44th
FormzylinderForme cylinder
55
GummizylinderRubber cylinder
66
FormzylinderForme cylinder
77
MaschinengestellMachine frame
88th
Wälzlagerroller bearing
99
ExzenterbuchseEccentric bushing
1010th
--
1111
KolbenstangePiston rod
1212th
ArbeitszylinderWorking cylinder
1313
ArbeitszylinderWorking cylinder
1414
ArbeitszylinderWorking cylinder
1515
--
1616
Öffnungopening
1717th
Öffnungopening
1818th
Schraubescrew
1919th
WinkelhebelAngle lever
2020th
KrafteinleitungspunktForce application point
2121
Lagercamp
2222
KoppelPaddock
2323
Flanschflange
2424th
Flanschflange
2525th
GegenkrafteinleitungspunktCounterforce application point
2626
WiderlagerAbutment
2727
PapierbahnPaper web
αα
Winkelangle
aa
Spielgame
r2r2
resultierende Kraft Zylinder 1 und 3resulting force cylinders 1 and 3
r4r4
resultierende Kraft Zylinder 3resulting force cylinder 3
r5r5
resultierende Kraft Zylinder 3 und 6resulting force cylinders 3 and 6
R2R2
Gesamtresultierende Zylinder 2Total cylinders 2
R4R4
Gesamtresultierende Zylinder 4Total cylinder 4
R5R5
Gesamtresultierende Zylinder 5Total cylinder 5
G2G2
Gewicht Zylinder 2Weight cylinder 2
G4G4
Gewicht Zylinder 4Weight cylinder 4
G5G5
Gewicht Zylinder 5Weight cylinder 5
Z1Z1
Druckkraft Zylinder 1Compression force cylinder 1
Z3Z3
Druckkraft Zylinder 3Compression force cylinder 3
Z6Z6
Druckkraft Zylinder 6Compression force cylinder 6
K22K22
Kraft, die von der Koppel 22 übertragen wirdForce that is transmitted from the coupling 22
K26K26
Kraft, die vom Widerlager aufgenommen wirdForce absorbed by the abutment
II.
Quadrantquadrant
IIII
Quadrantquadrant
IIIIII
Quadrantquadrant
IVIV
Quadrantquadrant

Claims (7)

  1. An arrangement for adjusting forme (4) and blanket cylinders (2; 5), which are borne in eccentric bushes (9) and may be set against other forme (1; 6) and/or blanket cylinders (3) of a multi-cylinder printing unit, in particular for offset web-fed rotary printing machines, by means of working cylinders (12; 13; 14), the working cylinders (12; 13; 14) are connected to the eccentric bushes (9) by way of lever rods (19) and flanges (23), the eccentric bushes are supported against the side frame by way of stops in the form of abutments (26), said arrangement having two pairs (1, 2-4, 3; 4, 3-6, 5) each comprising a forme cylinder (1; 4; 6) and a blanket cylinder (2; 3; 5), one forme cylinder (4; 4) and one blanket cylinder (2; 5) each being borne in eccentric bushes (9; 9; 9), and the other forme (1; 6) and blanket cylinders (3) being stationary, and the eccentrically borne forme cylinder (4) being capable of being set against the stationary blanket cylinder (3),
    characterized in that, when setting the pressure, the pressure forces (Z1; Z3) from both the first stationary forme cylinder (1) and the second stationary blanket cylinder (3) form a resultant force (r2) which is at an angle (α) 0 to ± 45° to a resultant force (R2) which comprises the pressure-force forces (Z1; Z3) of the first stationary forme cylinder (1) and of the second stationary blanket cylinder (3), and of the weight (G2) of the first blanket cylinder (2), and the forces (K22; K26) introduced at the eccentric bush (9) of the first blanket cylinder (2).
  2. An arrangement according to Claim 1, characterized in that the second forme cylinder (4) may be pressed against the second stationary blanket cylinder (3) with a resultant force (R4).
  3. An arrangement according to Claims 1 and 2, characterized in that the third blanket cylinder (5), which is in contact with the third forme cylinder (6), may be pressed against the second stationary blanket cylinder (3) with a resultant force (R5).
  4. An arrangement according to Claims 1 to 3, characterized in that the forces (K22; K26) introduced at the eccentric bushes (9) of the printing cylinders (2; 4; 5) may be introduced by way of flanges (23; 24) arranged at the periphery of the eccentric bushes (9).
  5. An arrangement according to Claim 1, characterized in that a force introduction point (20) for introducing a force (K22) is provided on each of the eccentric bushes (9), in that the force introduction point (20) of the first printing unit cylinder (2) which may be set is arranged in the IIIrd quadrant, and, for introducing a counter force (K26), the counter-force introduction point (25) is arranged in the Ist quadrant of the printing unit cylinder (2), in that the force introduction point (20) for introducing a force (K22) of the second printing unit cylinder (4) which may be set is arranged in the IInd quadrant, and, for introducing a counter force (K26), the counter-force introduction point (25) is arranged in the Ist quadrant, said quadrants (II; I) each being in relation to the rotational axis of the printing unit cylinder (4).
  6. An arrangement according to Claim 1, characterized in that a force introduction point (20) for introducing a force (K22) is provided on each of the eccentric bushes (9), in that the force introduction point (20) of the first printing unit cylinder (2) which may be set is arranged in the Ist quadrant, and, for introducing a counter force (K26), the counter-force introduction point (25) is arranged in the IIIrd quadrant, said quadrants (I; III) each being in relation to the rotational axis of the printing unit cylinder (2), in that the force introduction point (20) of the second printing unit cylinder (4) which may be set is arranged in the IInd quadrant, and the counter-force introduction point (25) for introducing a counter-force (K26) is arranged in the IVth quadrant, said quadrants (II; IV) each being in relation to the rotational axis of the printing unit cylinder (4).
  7. A process for adjusting forme (4) and blanket cylinders (2; 5), borne in eccentric bushes (9), according to Claim 1, characterized in that, for the forme (4) and blanket cylinders (2; 5) which may be set, the pressure forces (Z1, Z3, Z6) of the stationary adjacent forme (1; 6) and blanket cylinders (3) are determined and the weight forces (G2, G4, G5) and the striking forces (K26) of the forme (4) and blanket cylinders (2; 5), which may be set, for the flanges (23; 24) are supplemented, and the flanges (23; 24) are subsequently fixed such that the total resultant force (R2; R4; R5) of the forme (4) and blanket cylinders (2; 5) which may be set runs in the direction of the resultant forces (r2; r4; r5) of the adjacent stationary forme (1; 6) and blanket cylinders (3), forming an angle (α) from 0 to ± 45°.
EP92115050A 1991-09-09 1992-09-03 Method and means for adjusting eccentric rings for cylinders in printing machines Expired - Lifetime EP0531880B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4129840 1991-09-09
DE4129840A DE4129840A1 (en) 1991-09-09 1991-09-09 METHOD AND ARRANGEMENT FOR ADJUSTING EXCENTRIC BUSHINGS FOR CYLINDERS OF PRINTING MACHINES

Publications (2)

Publication Number Publication Date
EP0531880A1 EP0531880A1 (en) 1993-03-17
EP0531880B1 true EP0531880B1 (en) 1997-01-22

Family

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Application Number Title Priority Date Filing Date
EP92115050A Expired - Lifetime EP0531880B1 (en) 1991-09-09 1992-09-03 Method and means for adjusting eccentric rings for cylinders in printing machines

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US (1) US5320038A (en)
EP (1) EP0531880B1 (en)
JP (1) JPH05200972A (en)
DE (3) DE9115598U1 (en)
RU (1) RU2096182C1 (en)

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DE4034323C2 (en) * 1990-10-29 1997-12-04 Kba Planeta Ag Pressure on and off device
DE4241565A1 (en) * 1992-12-10 1994-06-16 Roland Man Druckmasch Storage for a pressure cylinder equipped with a slide-on sleeve
DE4241566A1 (en) * 1992-12-10 1994-06-16 Roland Man Druckmasch Bearing for rotary press cylinder with sleeve and adjustable supports - allows restricted pivoting of levers to retract rollers from periphery of cylinder for fitting or removal of sleeve
DE4308126A1 (en) * 1993-03-12 1994-09-15 Roland Man Druckmasch Method and device for adjusting pressure cylinders
DE4322791B4 (en) * 1993-07-08 2005-06-30 Heidelberger Druckmaschinen Ag Rotary press
DE4401289C2 (en) * 1994-01-18 1997-05-07 Roland Man Druckmasch Cylinder adjustment device
DE4417661C2 (en) * 1994-05-20 1996-06-05 Koenig & Bauer Albert Ag Arrangement for preventing printing unit damage in a web-fed rotary printing press
DE4422097A1 (en) * 1994-06-24 1996-01-04 Roland Man Druckmasch Arrangement of an electric motor for driving a rotating body
EP0943433B1 (en) 1998-03-16 2002-07-31 Grapha-Holding Ag Printing unit for a printing machine, particularly rotary offset printing machine
US6382099B1 (en) 1999-05-17 2002-05-07 Mark L. Herrmann Printing apparatus and method for preventing barring or banding on a printed substrate
DE10111068B4 (en) 2000-04-07 2018-01-18 Heidelberger Druckmaschinen Ag Roller lock for releasably securing a roller in a printing machine
JP4611493B2 (en) * 2000-06-23 2011-01-12 株式会社小森コーポレーション Rotary printing press cylinder
WO2006123728A1 (en) * 2005-05-20 2006-11-23 Komori Corporation Register adjusting device of rotary body
EP1961565B1 (en) * 2007-02-21 2014-04-16 Komori Corporation Sheet processing apparatus
JP6418630B2 (en) * 2014-05-14 2018-11-07 株式会社小森コーポレーション Printing machine cylinder

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GB1203968A (en) * 1967-12-19 1970-09-03 Hoe Crabtree Ltd Improvements in or relating to printing machines
DE2736175A1 (en) * 1977-08-11 1979-02-22 Koenig & Bauer Ag Printing mechanism for offset rotary press - has elements storing mechanical energy or delivering power mounted between dowel pins of neighbouring cylinders

Also Published As

Publication number Publication date
DE59207934D1 (en) 1997-03-06
DE4129840A1 (en) 1992-04-09
US5320038A (en) 1994-06-14
EP0531880A1 (en) 1993-03-17
JPH05200972A (en) 1993-08-10
RU2096182C1 (en) 1997-11-20
DE9115598U1 (en) 1992-04-23

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