EP0741018B1 - Device for bearing an applicator roll - Google Patents

Device for bearing an applicator roll Download PDF

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Publication number
EP0741018B1
EP0741018B1 EP96106592A EP96106592A EP0741018B1 EP 0741018 B1 EP0741018 B1 EP 0741018B1 EP 96106592 A EP96106592 A EP 96106592A EP 96106592 A EP96106592 A EP 96106592A EP 0741018 B1 EP0741018 B1 EP 0741018B1
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EP
European Patent Office
Prior art keywords
roller
axis
plate cylinder
applicator roller
applicator
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
EP96106592A
Other languages
German (de)
French (fr)
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EP0741018A3 (en
EP0741018A2 (en
Inventor
Peter Hummel
Robert Ortner
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
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0741018A2 publication Critical patent/EP0741018A2/en
Publication of EP0741018A3 publication Critical patent/EP0741018A3/en
Application granted granted Critical
Publication of EP0741018B1 publication Critical patent/EP0741018B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Definitions

  • the invention relates to a device for storing an applicator roller according to the preamble of claim 1.
  • the disadvantages occur particularly with conventional roller bearings.
  • a roller is supported on both sides with a roller journal in a swivel arm, the by means of a cam or other shut-off gear to the neighboring rollers and the plate cylinder is movable or can be switched off.
  • the cam gear acts against spring force.
  • the unrolling of the application rollers on the plate cylinder is special disadvantageous due to the spring force. Every radial movement of the application roller when the cylinder channel on the plate cylinder overflows, the adjusting springs come to light in an irregular movement, even if you use fixed stops try to limit these movements.
  • an ink roller bearing for printing machines is known. It is as Fixed bearing listed and has wedge elements for adjusting the axial position.
  • the ink roller bearing is additionally provided with means for starting and stopping. A simultaneous Starting and stopping to a plate cylinder and an upstream roller is not described.
  • the object of the invention is therefore to provide storage for an applicator roller avoids the disadvantages described and an exact setting of the applicator roller both allowed to the plate cylinder as well as to the neighboring rollers.
  • the solution to the problem is based on the features of the characterizing part of the claim 1.
  • a solution has been found here, the on and off movement the application roller in an optimal way to the rollers or cylinders interacting with it allowed.
  • the on and off movements can be independent of each other to the plate cylinder and to the neighboring rollers.
  • results jolt-free operation even when overflowing due to the so-called frame-fixed storage defects in the plate cylinder in the form of cylinder channels.
  • the dampening unit consists of a water tank 1, an immersion roller 2, and an employee thereon Dosing roller 3 and an applicator roller 4 between the plunger roller 2 and a Plate cylinder 7 is arranged.
  • the application roller 4 is by means of a bridge roller 5 connected to a first inking roller 6.
  • the inking roller 6 and the application roller 4 are on the plate cylinder 7 employed.
  • the plate cylinder 7 has on its circumference in the Contour interruptions that serve to set up a printing form. With rotation of the plate cylinder, this interruption in the surface contour, the so-called Cylinder channel also overflow the position of the applicator roller 4 and the ink roller 6.
  • Around To prevent a non-uniform movement of the applicator roller 4 is a special roller bearing provided, as shown in Fig. 2 in section.
  • Fig. 2 it is shown for a roller side that the applicator roller 4 by means of a short Roll pin 8 is inserted in a bearing shell 9.
  • the bearing shell 9 is corresponding a so-called roller lock is formed, in which the roll neck 8 can be fixed in this way is that the applicator roller 4 follows all movements of the bearing shell 9.
  • the roll neck 8 is also provided on the end face with a recess 10.
  • the recess 10 engages a disk-shaped drive element 11, which is coupled to a drive shaft 12 and a drive gear 13 is driven in rotation.
  • the application roller 4 is by means of the devices described when inserted into the bearing shell 9 coaxially and immovably with the drive shaft 12 connected.
  • the drive shaft 12 is in turn within a frame part 14, which with the Printing press is firmly connected, adjustable.
  • the eccentric 16 in turn has a bearing for the drive shaft 12 on.
  • At the adjusting eccentrics 15, 16 adjusting levers 17, 18 are provided, which the Serve rotation of the eccentric 15, 16. Grab on the control levers 17, 18, only here schematically shown, control rods 19, 20.
  • the eccentric 15 over the Adjusting lever 17 held or moved by the actuating rod 19.
  • the eccentric 16 is on Adjusting lever 18 held or moved by the adjusting rod 20.
  • Fig. 3 the arrangement of the eccentric 15, 16 for their movement drive is shown in more detail.
  • the assignment of the eccentricities or the axial positions is the Adjusting eccentric 15, 16 to the drive shaft 12 and the axis of the applicator roller 4 shown.
  • an axis A1 for the application roller 4, for the positioning eccentric 15 an axis A2 and an axis A3 is provided for the positioning eccentric 16.
  • the axes A1, A2 and A3 are related to each other, their execution and Purpose is explained in more detail below.
  • On the eccentric 15, 16 act via a adjustable rotary connection 21, the control rods 19, 20.
  • the control rods 19, 20 are acted upon by a drive lever 22.
  • a pneumatic cylinder engages on the drive lever 22 23 on.
  • the axes A1, A2 and A3 are not coaxial, but from each other away.
  • the axes A1 and A2 form an eccentricity E1 of the application roller 4 the plate cylinder 7.
  • the axes A2 and A3 form an eccentricity E2 of the application roller 4 compared to the plunger roller 2, the eccentricity E2 being in the distance of the Axes of rotation of the eccentric 15, 16 represents.
  • the distances and the orientation are like this chosen that the adjustment possibilities result in ideal radial movements.
  • the axis A1 of the applicator roller 4 is arranged in relation to the axis A2 of the adjusting eccentric 15, that the eccentricity E1 corresponding to the distance is approximately perpendicular to the connection the axis A1 of the applicator roller 4 and the axis of the plate cylinder 7.
  • the axis A3 of the positioning eccentric 16 to the axis A2 of the positioning eccentric 15 about the eccentricity E2 is offset approximately at right angles to the orientation of the axis connection Applicator roller 4 and dip roller 2. This ensures that the respective eccentricity E1 or E2 when turning on or off or setting approximately radially on the assigned Impacting level.
  • Fig. 4 is again the connection between the drive lever 22 and the control levers 17, 18.
  • the actuating rods 19, 20 are rotatable within the drive lever 22 secured with lock nuts. They are in the adjusting levers 17, 18 in sliding pieces 24, 25 screwed in. When the drive lever 22 moves, there are also compensating movements the adjusting rods 19, 20 with respect to both the drive lever 22 and opposite the levers 17, 18 possible.
  • the applicator roller 4 can be positioned in two directions of adjustment A and B.
  • the directions A and B are each radial to the adjacent surface of the plate cylinder 7 or Dip roller 2.
  • An on or off movement of the applicator roller 4 should be simultaneous as radially as possible to the plate cylinder 7 and also radially to the dip roller 2.
  • the direction of attack A corresponds to the connection between the axis A1 of the application roller 4 and the axis of the dip roller 2.
  • the direction of attack B corresponds to the connection between the axis A1 of the application roller 4 and the axis of the plate cylinder 7.
  • an adjustment of the plate cylinder 7 so that the movement is tangential to the applicator roller 4.
  • the so-called pressure provision ie. to readjust the starting pressure.
  • the application roller 4 is provided only minimally affected by the tangential displacement.
  • there is no tracking the applicator roller 4 is required for larger travel ranges due to the lack of Springing of the application roller 4 could otherwise be necessary.
  • the two adjusting eccentrics 15, 16 are arranged that as described above each one of the eccentric 15, 16 exactly the optimal Parking movement to the dip roller 2 or to the plate cylinder 7 corresponds.
  • the independent Positioning of the application roller 4 relative to the plate cylinder 7 or to the dip roller 2 takes place in an optimal manner via the adjusting rods 19, 20 by this in the sliders 24, 25 can be screwed in or out.
  • the basic position of the application roller 4 fixed. So that the setting both approximately radially to the plate cylinder 7, as can also be carried out to dip roller 2.
  • the on and off movement is an optimal one Combination of the positioning movements relative to the two individual elements of the plate cylinder 7 or dipping roller 2.
  • Fig. 6 the parked position of the applicator roller 4 and the parking movement is shown or positioning movement shown in the form of a double arrow.
  • the combined Setting direction from the movement of the two eccentric 15, 16 points, so to speak, in the Gap between plate cylinder 7 and plunge roller 2.
  • the applicator roller 4 shows a special positioning of the applicator roller 4. It can be in certain Cases may be necessary, the applicator roller 4 only to the plate cylinder 7 and Ink roller 6 over the bridge roller 5 down. This is due to the separate positioning of the two eccentric 15, 16 possible.
  • the eccentric 16, which Adjustment to the plunger roller 2 rotates so far that in the employed position in As a result of the movement of the pneumatic cylinder 23, there is no longer any contact between the application roller 4 and the dip roller 2 is given. In this position, the application roller 4 can be used as an additional inking roller. This is for example in use of so-called waterless printing forms useful in the offset printing machine.
  • the application of the special bearing of the application roller 4 by means of the two eccentric 15, 16 is not limited to the embodiment shown.
  • the essential is the regarding of the neighboring functional elements rigid storage and the opposite to the different Functional elements independent adjustability. These characteristics are also executable by other technical means.
  • the device can be used on all applicators in printing presses, in which one To apply applicator roller to a forme cylinder and a roller supplying a liquid is. Inking units and coating units are also considered here. Furthermore is a Can be used in other coating systems with rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Coating Apparatus (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Liquid Crystal (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The support device comprises a fixed bearing for the forme roller (4) wherein the bearing is set in the frame of the offset printer and is displaceable relative to the plate cylinder and the roller mounted in front of same. Separate adjusters (15-20) are provided for moving the forme roller opposite the plate cylinder and forward roller (3). Each adjuster runs radially to the plate cylinder of forward roller. The connection between the rotary axis of the plate cylinder and an axis (A1) of the forme roller is at right-angles to the connection of the axis with the rotary axis of the immersion roller.

Description

Die Erfindung betrifft eine Vorrichtung zur Lagerung einer Auftragwalze nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device for storing an applicator roller according to the preamble of claim 1.

In Feuchtwerken von Offsetdruckmaschinen sind Auftragwalzen vorgesehen, die der Zufuhr von Feuchtmittel auf einen eine Druckform tragenden Plattenzylinder dienen. Diese Auftragwalzen müssen mittels Stellmitteln gegenüber mit ihnen zusammenwirkenden Walzen und gegenüber dem Plattenzylinder an- und abstellbar sein. Durch die bisher bekannte Art und Weise der Gestaltung der Stellmittel ist es bedingt, daß bei der Rotation des Plattenzylinders Ungleichförmigkeiten in den Ablauf hineinkommen. Der Grund dafür ist, daß die Druckform auf dem Plattenzylinder festgespannt werden muß, wodurch sich an dessen Oberfläche mehr oder weniger große kanalförmige Unterbrechungen ergeben. Beim Überlaufen dieser Unterbrechungen in der Oberfläche des Plattenzylinders bzw. des sogenannten Zylinderkanals kann eine Auftragwalze also eine dieser Fehlstelle folgende Bewegung ausführen. Dadurch ergeben sich infolge der entstehenden Relativbewegungen zwischen den Walzen Unregelmäßigkeiten beim Transport des Feuchtmittels.In dampening units of offset printing machines, application rollers are provided, which are the feed of fountain solution on a plate cylinder carrying a printing form. This Applicator rollers must be set up with rollers that interact with them and be turned on and off relative to the plate cylinder. Through the previously known The way of designing the actuating means is conditional on the rotation of the plate cylinder Irregularities in the drain. The reason for that is the printing form must be clamped on the plate cylinder, causing itself to be Surface more or less large channel-shaped interruptions result. When overflowing these interruptions in the surface of the plate cylinder or the so-called Cylinder channel, an applicator roll can therefore follow a movement following this defect To run. This results in the resulting relative movements between irregularities in the transport of the dampening solution.

Die Nachteile treten insbesondere bei konventionellen Walzenlagerungen auf. Hierbei ist eine Walze jeweils an beiden Seiten mit einem Walzenzapfen in einem Schwenkarm gelagert, der mittels eines Kurven- oder sonstigen Abstellgetriebes zu den Nachbarwalzen und dem Plattenzylinder hin bewegbar ist bzw. von diesen abstellbar ist. Das Kurvengetriebe wirkt gegen Federkraft. Das Abrollen der Auftragwalzen auf dem Plattenzylinder ist insbesondere durch die Anstellung über Federkraft nachteilig. Jede Radialbewegung der Auftragwalze beim Überlaufen des Zylinderkanals am Plattenzylinder wird durch die Anstellfedern in einer unregelmäßigen Bewegung zutage treten, auch wenn man durch Festanschläge versucht diese Bewegungen zu begrenzen. The disadvantages occur particularly with conventional roller bearings. Here is a roller is supported on both sides with a roller journal in a swivel arm, the by means of a cam or other shut-off gear to the neighboring rollers and the plate cylinder is movable or can be switched off. The cam gear acts against spring force. The unrolling of the application rollers on the plate cylinder is special disadvantageous due to the spring force. Every radial movement of the application roller when the cylinder channel on the plate cylinder overflows, the adjusting springs come to light in an irregular movement, even if you use fixed stops try to limit these movements.

Aus der DE-PS 504398 ist ein Farbwalzenlager für Druckmaschinen bekannt. Es ist als Festlager angeführt und weist Keilelemente zur Einstellung der Achslage auf. Das Farbwalzenlager ist zusätzlich mit Mitteln zur An- und Abstellung versehen. Ein gleichzeitiges An- und Abstellen zu einem Plattenzylinder und einer vorgelagerten Walze ist nicht beschrieben.From DE-PS 504398 an ink roller bearing for printing machines is known. It is as Fixed bearing listed and has wedge elements for adjusting the axial position. The ink roller bearing is additionally provided with means for starting and stopping. A simultaneous Starting and stopping to a plate cylinder and an upstream roller is not described.

Aus der US-PS 4290360 ist ein Farb-/Feuchtwerk für Offsetdruckmaschinen bekannt. Es ist eine Feuchtauftragwalze vorgesehen, die in einem Festlager gegenüber dem Plattenzylinder einstellbar und an- und abstellbar ist. Die Feuchtauftragwalze ist nicht gegenüber der vorgelagerten Walze einstellbar, da diese an die Feuchtauftragwalze gefedert angestellt ist.From US-PS 4290360 an inking / dampening unit for offset printing machines is known. It a dampening roller is provided in a fixed bearing opposite the plate cylinder is adjustable and can be switched on and off. The dampening roller is not opposite the upstream roller adjustable, as it is sprung on the dampening roller is employed.

Aus der US-PS 49 22 818 ist ein weiteres Farb-/Feuchtwerk für Offsetdruckmaschinen bekannt. Eine Feuchtauftragwalze ist auf Lagerhebeln schwenkbar gelagert. Die vorgelagerte Walze wird auf eigenen Lagerhebeln an- und abgestellt. Gleiches gilt für die Einstellung der Walzen zueinander. Die Antriebe der Lagerhebel erfolgen getrennt voneinander.Another inking / dampening unit for offset printing machines is known from US Pat. No. 4,922,818 known. A dampening roller is pivoted on bearing levers. The upstream The roller is turned on and off on its own storage levers. The same applies to the setting of the rollers to each other. The bearing levers are driven separately.

Aufgabe der Erfindung ist es daher, eine Lagerung für eine Auftragwalze vorzusehen, die die geschilderten Nachteile vermeidet und eine exakte Einstellung der Auftragwalze sowohl zu dem Plattenzylinder als auch zu den Nachbarwalzen gestattet.The object of the invention is therefore to provide storage for an applicator roller avoids the disadvantages described and an exact setting of the applicator roller both allowed to the plate cylinder as well as to the neighboring rollers.

Die Lösung der Aufgabe gestaltet sich nach den Merkmalen des Kennzeichens des Patentanspruches 1. Hierbei ist eine Lösung gefunden worden, die die An- und Abstellbewegung der Auftragwalze in optimaler Weise an die mit ihr zusammenwirkenden Walzen bzw. Zylinder gestattet. Weiterhin können die An- und Abstellbewegungen unabhängig voneinander zu dem Plattenzylinder und zu den Nachbarwalzen gesteuert werden. Außerdem ergibt sich durch die sozusagen gestellfeste Lagerung ein ruckfreier Betrieb auch beim Überlaufen von Fehlstellen im Plattenzylinder in Form von Zylinderkanälen. Weiterhin sind Betriebsweisen möglich, bei denen die Auftragwalze von den Nachbarwalzen abgestellt aber am Plattenzylinder angestellt bleibt.The solution to the problem is based on the features of the characterizing part of the claim 1. A solution has been found here, the on and off movement the application roller in an optimal way to the rollers or cylinders interacting with it allowed. Furthermore, the on and off movements can be independent of each other to the plate cylinder and to the neighboring rollers. Also results jolt-free operation even when overflowing due to the so-called frame-fixed storage defects in the plate cylinder in the form of cylinder channels. Furthermore, modes of operation possible where the applicator roller is parked by the neighboring rollers remains employed on the plate cylinder.

Im folgenden wird anhand von Zeichnungen ein Ausführungsbeispiel nach der Erfindung näher beschrieben. Hierbei zeigen:

Fig. 1
eine Übersicht über ein Feuchtwerk,
Fig. 2
eine Detaildarstellung eines Anstellmechanismus im Schnitt,
Fig. 3
eine seitliche Darstellung des Anstellmechanismus,
Fig. 4
eine Darstellung von Teilen des Anstellmechanismus,
Fig. 5
eine Prinzipskizze der Lage der Auftragwalze,
Fig. 6
eine erste Stellposition der Auftragwalze und
Fig. 7
eine zweite Stellposition der Auftragwalze.
An exemplary embodiment according to the invention is described in more detail below with reference to drawings. Here show:
Fig. 1
an overview of a dampening system,
Fig. 2
a detailed representation of an adjusting mechanism in section,
Fig. 3
a side view of the adjusting mechanism,
Fig. 4
a representation of parts of the adjusting mechanism,
Fig. 5
a schematic diagram of the position of the application roller,
Fig. 6
a first position of the applicator roller and
Fig. 7
a second position of the applicator roller.

In Fig. list eine Übersicht eines Feuchtwerkes in einer Offsetdruckmaschine dargestellt. Das Feuchtwerk besteht aus einem Wasserkasten 1, einer Tauchwalze 2, einer daran angestellten Dosierwalze 3 und einer Auftragwalze 4, die zwischen der Tauchwalze 2 und einem Plattenzylinder 7 angeordnet ist. Die Auftragwalze 4 ist mittels einer Brückenwalze 5 mit einer ersten Farbwalze 6 verbunden. Die Farbwalze 6 und die Auftragwalze 4 sind an dem Plattenzylinder 7 angestellt. Der Plattenzylinder 7 weist an seinem Umfang in der Kontur Unterbrechungen auf, die der Aufspannung einer Druckform dienen. Bei Rotation des Plattenzylinders wird diese Unterbrechung in der Oberflächenkontur, der sogenannte Zylinderkanal auch die Position der Auftragwalze 4 und der Farbwalze 6 überlaufen. Um einer ungleichförmigen Bewegung der Auftragwalze 4 vorzubeugen, ist eine spezielle Walzenlagerung vorgesehen, wie sie in Fig. 2 im Schnitt gezeigt ist.An overview of a dampening system in an offset printing machine is shown in FIG. The dampening unit consists of a water tank 1, an immersion roller 2, and an employee thereon Dosing roller 3 and an applicator roller 4 between the plunger roller 2 and a Plate cylinder 7 is arranged. The application roller 4 is by means of a bridge roller 5 connected to a first inking roller 6. The inking roller 6 and the application roller 4 are on the plate cylinder 7 employed. The plate cylinder 7 has on its circumference in the Contour interruptions that serve to set up a printing form. With rotation of the plate cylinder, this interruption in the surface contour, the so-called Cylinder channel also overflow the position of the applicator roller 4 and the ink roller 6. Around To prevent a non-uniform movement of the applicator roller 4 is a special roller bearing provided, as shown in Fig. 2 in section.

In Fig. 2 ist für eine Walzenseite dargestellt, daß die Auftragwalze 4 mittels eines kurzen Walzenzapfens 8 in einer Lagerschale 9 eingelegt ist. Die Lagerschale 9 ist entsprechend einem sogenannten Walzenschloß ausgebildet, in dem der Walzenzapfen 8 derart festlegbar ist, daß die Auftragwalze 4 allen Bewegungen der Lagerschale 9 folgt. Der Walzenzapfen 8 ist außerdem stirnseitig mit einer Ausnehmung 10 versehen. Beim Einsetzen der Auftragwalze 4 in die Lagerschale 9 übergreift die Ausnehmung 10 ein scheibenförmiges Antriebselement 11, das mit einer Antriebswelle 12 gekoppelt und von einem Antriebszahnrad 13 rotativ angetrieben wird. Die Auftragwalze 4 wird mittels der beschriebenen Vorrichtungen beim Einlegen in die Lagerschale 9 koaxial und unverrückbar mit der Antriebswelle 12 verbunden. Die Antriebswelle 12 wiederum ist innerhalb eines Gestellteiles 14, das mit der Druckmaschine fest verbunden ist, verstellbar gelagert. Dazu ist ein erster Stellexzenter 15 in dem Gestellteil 14 gelagert und innerhalb dieses ersten Stellexzenters 15 ist ein zweiter Stellexzenter 16 gelagert. Der Stellexzenter 16 wiederum weist eine Lagerung für die Antriebswelle 12 auf. An den Stellexzentern 15, 16 sind Stellhebel 17, 18 vorgesehen, die der Verdrehung der Stellexzenter 15, 16 dienen. An den Stellhebeln 17, 18 greifen, hier nur schematisch dargestellte, Stellstangen 19, 20 an. Somit wird der Stellexzenter 15 über den Stellhebel 17 von der Stellstange 19 gehalten bzw. bewegt. Der Stellexzenter 16 wird am Stellhebel 18 von der Stellstange 20 gehalten bzw. bewegt.In Fig. 2 it is shown for a roller side that the applicator roller 4 by means of a short Roll pin 8 is inserted in a bearing shell 9. The bearing shell 9 is corresponding a so-called roller lock is formed, in which the roll neck 8 can be fixed in this way is that the applicator roller 4 follows all movements of the bearing shell 9. The roll neck 8 is also provided on the end face with a recess 10. When inserting the application roller 4 in the bearing shell 9, the recess 10 engages a disk-shaped drive element 11, which is coupled to a drive shaft 12 and a drive gear 13 is driven in rotation. The application roller 4 is by means of the devices described when inserted into the bearing shell 9 coaxially and immovably with the drive shaft 12 connected. The drive shaft 12 is in turn within a frame part 14, which with the Printing press is firmly connected, adjustable. There is a first eccentric 15 stored in the frame part 14 and within this first eccentric 15 is a second Eccentric 16 stored. The eccentric 16 in turn has a bearing for the drive shaft 12 on. At the adjusting eccentrics 15, 16 adjusting levers 17, 18 are provided, which the Serve rotation of the eccentric 15, 16. Grab on the control levers 17, 18, only here schematically shown, control rods 19, 20. Thus, the eccentric 15 over the Adjusting lever 17 held or moved by the actuating rod 19. The eccentric 16 is on Adjusting lever 18 held or moved by the adjusting rod 20.

In Fig. 3 ist die Anordnung der Stellexzenter 15, 16 zu ihrem Bewegungsantrieb näher dargestellt. Insbesondere ist die Zuordnung der Exzentrizitäten bzw. der Achslagen der Stellexzenter 15, 16 zur Antriebswelle 12 bzw. zur Achse der Auftragwalze 4 gezeigt. Hierbei ist zu beachten, daß für die Auftragwalze 4 eine Achse A1, für den Stellexzenter 15 eine Achse A2 und für den Stellexzenter 16 eine Achse A3 vorgesehen ist. Die Achsen A1, A2 und A3 stehen in einer bestimmten Beziehung zueinander, deren Ausführung und Zweck weiter unten näher erläutert wird. Auf die Stellexzenter 15, 16 wirken über eine einstellbare Drehverbindung 21 die Stellstangen 19, 20. Die Stellstangen 19, 20 werden mittels eines Antriebshebels 22 beaufschlagt. Am Antriebshebel 22 greift ein Pneumatikzylinder 23 an. In Fig. 3, the arrangement of the eccentric 15, 16 for their movement drive is shown in more detail. In particular, the assignment of the eccentricities or the axial positions is the Adjusting eccentric 15, 16 to the drive shaft 12 and the axis of the applicator roller 4 shown. It should be noted here that an axis A1 for the application roller 4, for the positioning eccentric 15 an axis A2 and an axis A3 is provided for the positioning eccentric 16. The axes A1, A2 and A3 are related to each other, their execution and Purpose is explained in more detail below. On the eccentric 15, 16 act via a adjustable rotary connection 21, the control rods 19, 20. The control rods 19, 20 are acted upon by a drive lever 22. A pneumatic cylinder engages on the drive lever 22 23 on.

Wie in Fig. 3 gezeigt liegen die Achsen A1, A2 und A3 nicht koaxial, sondern voneinander entfernt. Die Achsen A1 und A2 bilden eine Exzentrizität E1 der Auftragwalze 4 gegenüber dem Plattenzylinder 7. Die Achsen A2 und A3 bilden eine Exzentrizität E2 der Auftragwalze 4 gegenüber der Tauchwalze 2, wobei die Exzentrizität E2 sich im Abstand der Drehachsen der Stellexzenter 15, 16 darstellt. Die Abstände und die Orientierung sind so gewählt, daß die Stellmöglichkeiten möglichst ideale radiale Bewegungen ergeben. So ist die Achse A1 der Auftragwalze 4 zu der Achse A2 des Stellexezenters 15 so angeordnet, daß die dem Abstand entsprechende Exzentrizität E1 in etwa rechtwinklig zur Verbindung der Achse A1 der Auftragwalze 4 und der Achse des Plattenzylinders 7 liegt. Entsprechend liegt die Achse A3 des Stellexzenters 16 zu der Achse A2 des Stellexzenters 15 um die Exzentrizität E2 versetzt etwa rechtwinklig zur Orientierung der Achsverbindung zwischen Auftragwalze 4 und Tauchwalze 2. Damit ist sichergestellt, daß sich die jeweilige Exzentrizität E1 bzw. E2 beim An- bzw. Ab- bzw. Einstellen annähernd radial an der zugeordneten Stellebene auswirkt.As shown in Fig. 3, the axes A1, A2 and A3 are not coaxial, but from each other away. The axes A1 and A2 form an eccentricity E1 of the application roller 4 the plate cylinder 7. The axes A2 and A3 form an eccentricity E2 of the application roller 4 compared to the plunger roller 2, the eccentricity E2 being in the distance of the Axes of rotation of the eccentric 15, 16 represents. The distances and the orientation are like this chosen that the adjustment possibilities result in ideal radial movements. So is the axis A1 of the applicator roller 4 is arranged in relation to the axis A2 of the adjusting eccentric 15, that the eccentricity E1 corresponding to the distance is approximately perpendicular to the connection the axis A1 of the applicator roller 4 and the axis of the plate cylinder 7. Corresponding is the axis A3 of the positioning eccentric 16 to the axis A2 of the positioning eccentric 15 about the eccentricity E2 is offset approximately at right angles to the orientation of the axis connection Applicator roller 4 and dip roller 2. This ensures that the respective eccentricity E1 or E2 when turning on or off or setting approximately radially on the assigned Impacting level.

In Fig. 4 ist noch einmal die Verbindung zwischen dem Antriebshebel 22 und den Stellhebeln 17, 18 gezeigt. Die Stellstangen 19, 20 sind innerhalb des Antriebshebels 22 drehbar mittels Kontermuttern gesichert. Sie werden in den Stellhebeln 17, 18 in Gleitstücken 24, 25 eingeschraubt. Bei einer Bewegung des Antriebshebels 22 sind so auch Ausgleichsbewegungen der Stellstangen 19, 20 gegenüber sowohl dem Antriebshebel 22 als auch gegenüber den Stellhebeln 17, 18 möglich.In Fig. 4 is again the connection between the drive lever 22 and the control levers 17, 18. The actuating rods 19, 20 are rotatable within the drive lever 22 secured with lock nuts. They are in the adjusting levers 17, 18 in sliding pieces 24, 25 screwed in. When the drive lever 22 moves, there are also compensating movements the adjusting rods 19, 20 with respect to both the drive lever 22 and opposite the levers 17, 18 possible.

In Fig. 5 ist die Lagebeziehung der Auftragwalze 4 einerseits zum Plattenzylinder 7 bzw. andererseits zu der Tauchwalze 2 aufgezeigt. Hierbei ist dargestellt, daß die Auftragwalze 4 in zwei Anstellrichtungen A und B zu positionierbar ist. Die Anstellrichtungen A und B liegen jeweils radial zur benachbarten Oberfläche des Plattenzylinders 7 bzw. der Tauchwalze 2. Eine An- bzw. Abstellbewegung der Auftragwalze 4 soll also gleichzeitig möglichst radial zum Plattenzylinder 7 und auch radial zur Tauchwalze 2 erfolgen. Die Anstellrichtung A entspricht der Verbindung zwischen der Achse A1 der Auftragwalze 4 und der Achse der Tauchwalze 2. Die Anstellrichtung B entspricht der Verbindung zwischen der Achse A1 der Auftragwalze 4 und der Achse des Plattenzylinders 7. Durch die Überlagerung der Anstellrichtungen A und B beim gleichzeitigen Anstellen an beide Oberflächen ist eine radiale Anstellung nicht in gleicher Weise möglich, da eine kombinierte An-/Abstellbewegung angestrebt wird.In Fig. 5, the positional relationship of the applicator roller 4 on the one hand to the plate cylinder 7 or on the other hand, to the dip roller 2. It is shown here that the applicator roller 4 can be positioned in two directions of adjustment A and B. The directions A and B are each radial to the adjacent surface of the plate cylinder 7 or Dip roller 2. An on or off movement of the applicator roller 4 should be simultaneous as radially as possible to the plate cylinder 7 and also radially to the dip roller 2. The direction of attack A corresponds to the connection between the axis A1 of the application roller 4 and the axis of the dip roller 2. The direction of attack B corresponds to the connection between the axis A1 of the application roller 4 and the axis of the plate cylinder 7. By the superposition the directions of attack A and B when simultaneously attacking both surfaces radial adjustment is not possible in the same way, since a combined on / off movement is sought.

Zur Verbesserung der Einstellmöglichkeiten und zur Optimierung der Stellauswirkungen kann außerdem vorgesehen sein, eine Verstellmöglichkeit des Plattenzylinders 7 so anzuordnen, daß die Bewegung tangential zur Auftragwalze 4 erfolgt. Dazu sollte auch die Anordnung der Achsverbindungen zwischen Plattenzylinder 7 und Auftragwalze 4, sowie zwischen Auftragwalze 4 und Tauchwalze 2 rechtwinklig zueinander ausgeführt sein. Beispielsweise bei Änderung des wirksamen Umfangs am Plattenzylinder 7 durch Unterlegen der Druckform ist eine Abstandsänderung zum benachbarten Druckwerkszylinder erforderlich, um die sogenannte Druckbeistellung dh. den Anstelldruck neu zu justieren. Bei dieser Verstellung soll aber die Einstellung der Auftragwalze nicht beeinflußt werden, da sie ja selbständig vorgenommen wird. Durch die Anordnung der Stellebenen in rechtem Winkel zueinander wird dieses Problem behoben. Dabei wird die Beistellung der Auftragwalze 4 durch die tangentiale Verschiebung nur minimal beeinflußt. Außerdem ist keine Nachführung der Auftragwalze 4 bei größeren Stellwegen erforderlich, die aufgrund der fehlenden Anfederung der Auftragwalze 4 sonst erforderlich sein könnte.To improve the setting options and to optimize the positioning effects can also be provided to arrange an adjustment of the plate cylinder 7 so that the movement is tangential to the applicator roller 4. This should include the arrangement the axis connections between plate cylinder 7 and applicator roller 4, and between applicator roller 4 and plunger roller 2 to be perpendicular to each other. For example when changing the effective scope on the plate cylinder 7 by underlaying the printing form requires a change in distance to the neighboring printing unit cylinder, the so-called pressure provision ie. to readjust the starting pressure. At this Adjustment should not affect the setting of the applicator roller, since it is is carried out independently. By arranging the positioning levels at a right angle to each other this problem is resolved. The application roller 4 is provided only minimally affected by the tangential displacement. In addition, there is no tracking the applicator roller 4 is required for larger travel ranges due to the lack of Springing of the application roller 4 could otherwise be necessary.

In der Ausführungsform nach der Erfindung sind die beiden Stellexzenter 15, 16 so angeordnet, daß wie oben beschrieben je einer der Stellexzenter 15, 16 genau der optimalen Abstellbewegung zur Tauchwalze 2 bzw. zum Plattenzylinder 7 entspricht. Durch die gemeinsame Bewegung beim An- und Abstellen der Auftragwalze 4 ergibt sich ein optimierter Mittelwert für die Stellbewegung beim Verstellen der Auftragwalze 4. Die unabhängige Positionierung der Auftragwalze 4 relativ zum Plattenzylinder 7 bzw. zur Tauchwalze 2 erfolgt in optimaler Weise über die Stellstangen 19, 20, indem diese in den Gleitstücken 24, 25 ein- oder ausgeschraubt werden. Damit wird die Grundposition der Auftragwalze 4 festgelegt. Damit kann die Einstellung sowohl annähernd radial zum Plattenzylinder 7, als auch zur Tauchwalze 2 ausgeführt werden. Die An- und Abstellbewegung ist eine optimale Kombination aus den Anstellbewegungen relativ zu den beiden Einzelelementen Plattenzylinder 7 bzw. Tauchwalze 2.In the embodiment according to the invention, the two adjusting eccentrics 15, 16 are arranged that as described above each one of the eccentric 15, 16 exactly the optimal Parking movement to the dip roller 2 or to the plate cylinder 7 corresponds. Through the common Movement when starting and stopping the application roller 4 results in an optimized Average value for the adjustment movement when adjusting the application roller 4. The independent Positioning of the application roller 4 relative to the plate cylinder 7 or to the dip roller 2 takes place in an optimal manner via the adjusting rods 19, 20 by this in the sliders 24, 25 can be screwed in or out. The basic position of the application roller 4 fixed. So that the setting both approximately radially to the plate cylinder 7, as can also be carried out to dip roller 2. The on and off movement is an optimal one Combination of the positioning movements relative to the two individual elements of the plate cylinder 7 or dipping roller 2.

In Fig. 6 ist die abgestellte Position der Auftragwalze 4 dargestellt und die Abstellbewegung bzw. Anstellbewegung in Form eines Doppelpfeiles aufgezeigt. Die kombinierte Stellrichtung aus der Bewegung der beiden Stellexzenter 15, 16 weist sozusagen in den Spalt zwischen Plattenzylinder 7 und Tauchwalze 2.In Fig. 6, the parked position of the applicator roller 4 and the parking movement is shown or positioning movement shown in the form of a double arrow. The combined Setting direction from the movement of the two eccentric 15, 16 points, so to speak, in the Gap between plate cylinder 7 and plunge roller 2.

In Fig. 7 ist eine besondere Positionierung der Auftragwalze 4 gezeigt. Es kann in bestimmten Fällen erforderlich sein, die Auftragwalze 4 nur zum Plattenzylinder 7 und zur Farbwalze 6 über die Brückenwalze 5 hin anzustellen. Dies ist durch die getrennte Positionierung der beiden Stellexzenter 15, 16 möglich. Hierzu wird der Stellexzenter 16, der die Anstellung zur Tauchwalze 2 bewirkt soweit verdreht, daß in der angestellten Position in Folge des Bewegung des Pneumatikzylinders 23 keine Berührung mehr zwischen der Auftragwalze 4 und der Tauchwalze 2 gegeben ist. In dieser Postition kann die Auftragwalze 4 als zusätzliche Farbauftragwalze verwendet werden. Dies ist beispielsweise bei der Verwendung von sogenannten wasserlosen Druckformen in der Offsetdruckmaschine nützlich.7 shows a special positioning of the applicator roller 4. It can be in certain Cases may be necessary, the applicator roller 4 only to the plate cylinder 7 and Ink roller 6 over the bridge roller 5 down. This is due to the separate positioning of the two eccentric 15, 16 possible. For this purpose, the eccentric 16, which Adjustment to the plunger roller 2 rotates so far that in the employed position in As a result of the movement of the pneumatic cylinder 23, there is no longer any contact between the application roller 4 and the dip roller 2 is given. In this position, the application roller 4 can be used as an additional inking roller. This is for example in use of so-called waterless printing forms useful in the offset printing machine.

Die Anwendung der speziellen Lagerung der Auftragwalze 4 mittels der beiden Stellexzenter 15, 16 ist nicht auf die gezeigte Ausführungsform beschränkt. Wesentliche ist die bezüglich der benachbarten Funktionselemente starre Lagerung und die gegenüber den verschiedenen Funktionselementen unabhängige Einstellbarkeit. Diese Merkmale sind auch mittels anderer technischer Mittel ausführbar.The application of the special bearing of the application roller 4 by means of the two eccentric 15, 16 is not limited to the embodiment shown. The essential is the regarding of the neighboring functional elements rigid storage and the opposite to the different Functional elements independent adjustability. These characteristics are also executable by other technical means.

Die Vorrichtung ist an allen Auftragwerken in Druckmaschinen einsetzbar, in denen eine Auftragwalze zu einem Formzylinder und einer eine Flüssigkeit zuliefernden Walze anzustellen ist. Hier kommen auch Farbwerke und Lackierwerke in Betracht. Weiterhin ist ein Einsatz in anderen Beschichtungseinrichtungen mit Walzen vorstellbar. The device can be used on all applicators in printing presses, in which one To apply applicator roller to a forme cylinder and a roller supplying a liquid is. Inking units and coating units are also considered here. Furthermore is a Can be used in other coating systems with rollers.

BezugszeichenlisteReference list

11
WasserkastenWater tank
22nd
TauchwalzeDipping roller
33rd
DosierwalzeDosing roller
44th
AuftragwalzeApplicator roller
55
BrückenwalzeBridge roller
66
FarbwalzeInk roller
77
PlattenzylinderPlate cylinder
88th
WalzenzapfenRoll neck
99
LagerschaleBearing shell
1010th
AusnehmungRecess
1111
AntriebselementDrive element
1212th
Antriebswelledrive shaft
1313
AntriebszahnradDrive gear
1414
GestellteilFrame part
1515
StellexzenterEccentric
1616
StellexzenterEccentric
1717th
StellhebelControl lever
1818th
StellhebelControl lever
1919th
StellstangeControl rod
2020th
StellstangeControl rod
2121
DrehverbindungSlewing ring
2222
AntriebshebelDrive lever
2323
PneumatikzylinderPneumatic cylinder
2424th
GleitstückSlider
2525th
GleitstückSlider
AA
AnstellrichtungDirection of attack
BB
AnstellrichtungDirection of attack
A1A1
Achseaxis
A2A2
Achseaxis
A3A3
Achseaxis
E1E1
Exzentrizitäteccentricity
E2E2
Exzentrizitäteccentricity

Claims (4)

  1. Device for bearing an applicator roller in an applicator unit of an offset printing press, preferably in a damping unit, with an applicator roller (4) arranged settable against and away from a forme cylinder or plate cylinder (7) or one of these in a frame portion (14), a roller (2) arranged relative to the applicator roller (4) and adjusting means for setting the applicator roller (4) against and away from the plate cylinder (7) and the upstream roller (2), wherein an adjustable fixed bearing for the applicator roller (4) is provided relative to the plate cylinder (7) and the upstream roller (2), characterised in that provided in the fixed bearing in each case are separate adjusting means (15, 17, 19; 16, 18, 20) for movement of the applicator roller (4) with respect to the plate cylinder (7) and with respect to the upstream roller (2), which have bearing elements arranged in pairs, wherein the adjusting means (15, 17, 19; 16, 18, 29) are fitted with a common drive (23) by means of which the setting against and away movement takes place by simultaneous driving of both bearing elements, and that the adjusting means (15, 16) are so arranged that the adjustment direction transferred to the applicator roller (4) runs in each case approximately radially to the plate cylinder (7) or to the upstream roller (2).
  2. Device according to Claim 1, characterised in that the connection of the rotational axis of the plate cylinder (7) to an axis (A1) of the applicator roller (4) is arranged perpendicular to the connection of the axis (A1) with the rotational axis of the dipping roller (2), and that an adjustment device for shifting the plate cylinder (7) is provided, the adjustment direction of which runs essentially parallel to a tangent on the applicator roller (4).
  3. Device according to Claim 1 to 2, characterised in that the adjusting means (15, 17, 19; 16, 18, 20) are adjustable independently of one another with respect to the drive (23).
  4. Device according to Claim 1 to 3, characterised in that the adjusting means are constructed as adjusting eccentrics (15, 16), wherein the adjusting eccentric (15) receives a bearing for the applicator roller (4) and is rotatably mounted within the adjusting eccentric (16), that the adjusting eccentric (15) has an eccentricity (E1) of its axis (A2) with respect to an axis (A1) of the applicator roller (4), which, in the set on position of the applicator roller (4) against the plate cylinder (7), lies substantially perpendicular to the connection of the axis (A1) with the axis of the plate cylinder (7), and that the adjusting eccentric (16) has an eccentricity (E2) of its axis (A3) with respect to an axis (A2) of the adjusting eccentric (15) which lies in the set on position of the applicator roller (4) against the dipping roller (2) substantially perpendicular to the connection of the axis (A1) with the axis of the dipping roller (2) and that the adjusting eccentrics (15;16) are connected in each case independently with the common drive (23) by means of adjustable adjustment rods (19;20).
EP96106592A 1995-05-03 1996-04-26 Device for bearing an applicator roll Expired - Lifetime EP0741018B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516131A DE19516131A1 (en) 1995-05-03 1995-05-03 Device for storing an application roller
DE19516131 1995-05-03

Publications (3)

Publication Number Publication Date
EP0741018A2 EP0741018A2 (en) 1996-11-06
EP0741018A3 EP0741018A3 (en) 1997-04-16
EP0741018B1 true EP0741018B1 (en) 2001-06-06

Family

ID=7760916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106592A Expired - Lifetime EP0741018B1 (en) 1995-05-03 1996-04-26 Device for bearing an applicator roll

Country Status (5)

Country Link
US (1) US5676057A (en)
EP (1) EP0741018B1 (en)
JP (1) JPH08300605A (en)
AT (1) ATE201848T1 (en)
DE (2) DE19516131A1 (en)

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Publication number Priority date Publication date Assignee Title
US6336403B1 (en) * 2000-04-05 2002-01-08 Townsend Industries, Inc. Dampening system for printing machines
DE10021540A1 (en) * 2000-05-03 2001-11-08 Koenig & Bauer Ag Arrangement for setting a distance from the axes of rotation of cylinders
US6837161B2 (en) * 2000-05-17 2005-01-04 Komori Corporation Ink removal method for printing press
DE10219941A1 (en) * 2002-05-03 2003-11-20 Roland Man Druckmasch Inking mechanism for printer has adjustable roller mounted in eccentric bushes which are fitted in two housings arranged side by side and supported for sliding and swivel movement relative to each other across longitudinal direction
NL1022049C2 (en) * 2002-12-02 2004-06-11 Mps Holding B V Printing module as well as a printing machine provided with such a printing module.
US6796228B2 (en) * 2002-12-27 2004-09-28 Day International, Inc. Dampener metering device
DE10352614A1 (en) * 2003-07-11 2005-02-10 Koenig & Bauer Ag Roller of a paint or dampening unit

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DE504398C (en) * 1927-07-09 1930-08-02 Albert Schnellpressen Inking roller bearings for printing machines
GB734803A (en) * 1952-04-09 1955-08-10 Maschf Augsburg Nuernberg Ag Device for setting and controlling the inking and damping rollers of printing machines
US2986086A (en) * 1959-02-27 1961-05-30 Miller Printing Machinery Co Antifriction eccentric journaling mounting for rotatable member
DE1227916B (en) * 1962-04-28 1966-11-03 Maschf Augsburg Nuernberg Ag Bearing arrangement for a cylinder of printing machines, in particular for the rubber cylinder of a sheet-fed offset printing machine
US3691956A (en) * 1970-11-20 1972-09-19 North American Rockwell Flat adjusting and throw-off arrangement for form roller in printing press
US4130057A (en) * 1977-10-25 1978-12-19 Roland Offsetmaschinenfabrik Faber & Schleicher Ag. Dampening system for printing presses, particularly offset printing presses
IT1160413B (en) * 1978-12-28 1987-03-11 Cigardi Omc Sa PERFECTED WATER AND WATER-ALCOHOL BLENDING DEVICE, APPLICABLE ON OFFSET PRINTING MACHINES
DE2902228C2 (en) * 1979-01-20 1981-12-17 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Device for supplying liquid to the plate cylinder of a rotary offset printing machine
DE3123990C2 (en) * 1981-06-19 1986-04-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Adjustment device for inking and dampening rollers on printing machines
DD210535A3 (en) * 1982-06-02 1984-06-13 Polygraph Leipzig DEVICE FOR ADJUSTING COLOR OR MOISTURE ROLLING ROLLERS
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DE4322791B4 (en) * 1993-07-08 2005-06-30 Heidelberger Druckmaschinen Ag Rotary press

Also Published As

Publication number Publication date
JPH08300605A (en) 1996-11-19
EP0741018A3 (en) 1997-04-16
DE19516131A1 (en) 1996-11-07
ATE201848T1 (en) 2001-06-15
US5676057A (en) 1997-10-14
EP0741018A2 (en) 1996-11-06
DE59607029D1 (en) 2001-07-12

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