EP1334827B1 - Apparatus for laterally aligning sheets - Google Patents

Apparatus for laterally aligning sheets Download PDF

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Publication number
EP1334827B1
EP1334827B1 EP20030002274 EP03002274A EP1334827B1 EP 1334827 B1 EP1334827 B1 EP 1334827B1 EP 20030002274 EP20030002274 EP 20030002274 EP 03002274 A EP03002274 A EP 03002274A EP 1334827 B1 EP1334827 B1 EP 1334827B1
Authority
EP
European Patent Office
Prior art keywords
motor
cylinder
gripper system
gripper
rotational speed
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
EP20030002274
Other languages
German (de)
French (fr)
Other versions
EP1334827A1 (en
Inventor
Uwe Becker
Gerhard Heyn
Ullrich Köhler
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1334827A1 publication Critical patent/EP1334827A1/en
Application granted granted Critical
Publication of EP1334827B1 publication Critical patent/EP1334827B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/14—Adjusting lateral edges, e.g. side stops

Definitions

  • the invention relates to a device for laterally aligning sheets in a sheet-fed rotary printing press with a gripper system mounted so as to be axially displaceable in a cylinder, which gripper system can be displaced by a motorized actuator which can be influenced by an evaluation unit.
  • the disadvantage is that faulty positioning actions can be initiated by wear and contamination of the control disk.
  • the applications are limited, since it is necessary that the transfer and transfer point are provided offset approximately 180 ° to each other.
  • a device is also known from EP 0 753 407 B1, in which the gripper system displaceably mounted in the cylinder in the axial direction can be displaced by a linear actuator or linear motor arranged in the cylinder channel.
  • the disadvantage is that the cylinder actuator mounted in the cylinder and constantly circulating linear actuator or linear motor must be controlled.
  • the object of the invention is to provide a further generic device for the lateral alignment of sheets, which enables high performance with little effort and is universally applicable.
  • a part of a cylinder 1 is shown in a sectional view.
  • the cylinder 1 is mounted in side walls 2 by means of a roller bearing 6 and bushes 7, of which only one side wall 2 is shown.
  • a gripper system 3 is arranged in the cylinder 1.
  • a pulling shaft 4 is concentrically provided, which is guided in bearings 5.
  • a threaded nut 8 is provided, into which a threaded spindle 9 engages.
  • the threaded spindle 9 is mounted secured against axial displacement by thrust bearing 10 in a motor flange 11.
  • the motor flange 11 is arranged fixed to the frame on the side wall 2.
  • a motor 12 With the motor flange 11, a motor 12 is fixedly connected. A motor shaft 13 of the motor 12 is coupled by a torsionally stiff coupling 14 with the threaded spindle 9. With the pull shaft 4, a driver 15 is connected, which in turn acts on a gripper carriage 16 of the gripper system 3. In addition to the gripper carriage 16 belong to the gripper system 3, a gripper shaft 17 with gripper fingers 18 which correspond with gripper clutches 19.
  • the gripper system 3 is mounted as a functional unit axially displaceable by the gripper carriage 16 is received in guides 20 of the cylinder 1. In a conventional manner, sheets are singulated in a sheet feeder and fed via a belt table a feed table. Here, the bows are aligned to front marks after the leading edge.
  • the actual position of the side edge is detected and generates a measured value, which is supplied to an evaluation unit for a target-actual comparison. If the actual value deviates from a predetermined desired value, the evaluation unit generates an actuating signal with which the motor 12 is activated.
  • the motor 12 rotates at a speed which follows the rotational speed of the cylinder 1 synchronously.
  • the speed synchronization of the engine 12 with the cylinder 1 is realized by a machine-internal or a separate, not shown speed sensor. In this case, the instantaneous speed of the machine or of the cylinder 1 is constantly detected and tracked by this measured value of the motor 14, so that the motor shaft 13 and the drawing shaft 4 rotate synchronously.
  • the recorded on the feed table sheet is fed directly or by additional means the cylinder 1 and clamped between the gripper fingers 18 and the gripper hooks 19 and conveyed to the downstream printing press.
  • the actual position of the desired position is adjusted by the gripper system 3 is axially displaced in the guides 20. If the motor 12 supplied from the target-actual comparison resulting control signal, the instantaneous speed of the motor 12 is moved forward or backward and then synchronized again. Due to the leading or lagging adjustment of the speed of the Motors 12, a rotation between the threaded nut 18 and threaded spindle 9 initiated and thus the pulling shaft 4 in or against a direction of arrow 21 is moved.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum seitlichen Ausrichten von Bogen in einer Bogenrotationsdruckmaschine mit einem in einem Zylinder axial verschiebbar gelagerten Greifersystem, das durch ein über eine Auswerteinheit beeinflussbares motorisches Stellglied verschoben werden kann.The invention relates to a device for laterally aligning sheets in a sheet-fed rotary printing press with a gripper system mounted so as to be axially displaceable in a cylinder, which gripper system can be displaced by a motorized actuator which can be influenced by an evaluation unit.

Durch die DE 36 44 431 A1 ist eine derartige Vorrichtung bekannt, bei der das Greifersystem zum seitlichen Ausrichten der Bogen ständig über eine Steuerscheibe axial bei jeder Umdrehung des Zylinders verschoben wird. Abweichungen der Seitenkantenlage des Bogens werden von einer der Vorrichtung vorgeordneten Abtasteinrichtung erfasst und über einen Getriebemotor die Steuerscheibe verstellt.By DE 36 44 431 A1, such a device is known in which the gripper system for the lateral alignment of the sheet is constantly displaced axially via a control disk at each revolution of the cylinder. Deviations of the side edge position of the sheet are detected by a scanning device upstream of the device and adjusted via a geared motor, the control disk.

Nachteilig ist, dass durch Verschleiß und Verschmutzung der Steuerscheibe fehlerbehaftete Stellhandlungen initiiert werden können. Außerdem sind die Einsatzmöglichkeiten eingeschränkt, da es erforderlich ist, dass der Übergabe- und Übernahmepunkt annähernd 180° zueinander versetzt vorgesehen sind.The disadvantage is that faulty positioning actions can be initiated by wear and contamination of the control disk. In addition, the applications are limited, since it is necessary that the transfer and transfer point are provided offset approximately 180 ° to each other.

Aus der EP 0 753 407 B1 ist weiterhin eine Vorrichtung bekannt, bei der das im Zylinder in axialer Richtung verschiebbar gelagerte Greifersystem durch einen im Zylinderkanal angeordneten linearen Aktor bzw. Linearmotor verschoben werden kann.A device is also known from EP 0 753 407 B1, in which the gripper system displaceably mounted in the cylinder in the axial direction can be displaced by a linear actuator or linear motor arranged in the cylinder channel.

Nachteilig ist, dass der im Zylinderkanal gelagerte und ständig umlaufende lineare Aktor bzw. Linearmotor angesteuert werden muss.The disadvantage is that the cylinder actuator mounted in the cylinder and constantly circulating linear actuator or linear motor must be controlled.

Aufgabe der Erfindung ist die Schaffung einer weiteren gattungsgemäßen Vorrichtung zum seitlichen Ausrichten von Bogen, die eine hohe Leistung bei einem geringen Aufwand ermöglicht und universell einsetzbar ist.The object of the invention is to provide a further generic device for the lateral alignment of sheets, which enables high performance with little effort and is universally applicable.

Erfindungsgemäß wird die Aufgabe durch eine Vorrichtung nach den Merkmalen des Anspruchs 1 realisiert.According to the invention the object is achieved by a device according to the features of claim 1.

Durch die erfindungsgemäße Lösung ist es möglich, mit einfachen Mitteln problemlos das Greifersystem zum Ausrichten von Bogen nach der Seitenkante axial zu verschieben. Außerdem ist diese Vorrichtung problemlos auch dann einzusetzen, wenn der Übernahme- und Übergabepunkt nicht gleichmäßig versetzt zueinander vorgesehen sind.By the solution according to the invention, it is possible to easily move the gripper system for aligning sheets after the side edge with simple means. In addition, this device is easy to use even if the acquisition and transfer point are not evenly offset from each other.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. In der zugehörigen Zeichnung ist ein Teil eines Zylinders 1 in einer Schnittdarstellung gezeigt. Der Zylinder 1 ist in Seitenwänden 2 mittels eines Wälzlagers 6 und Buchsen 7 gelagert, von denen nur eine Seitenwand 2 dargestellt ist. Im Zylinder 1 ist ein Greifersystem 3 angeordnet. In dem Zylinder 1 ist konzentrisch eine Ziehwelle 4 vorgesehen, die in Lagern 5 geführt ist. Am äußeren Ende der Ziehwelle 4 ist mit dieser drehfest verbunden eine Gewindemutter 8 vorgesehen, in die eine Gewindespindel 9 eingreift. Die Gewindespindel 9 ist gegen ein axiales Verschieben durch Axiallager 10 gesichert in einem Motorflansch 11 gelagert. Der Motorflansch 11 ist gestellfest an der Seitenwand 2 angeordnet. Mit dem Motorflansch 11 ist ein Motor 12 fest verbunden. Eine Motorwelle 13 des Motors 12 ist durch eine drehsteife Kupplung 14 mit der Gewindespindel 9 gekoppelt.
Mit der Ziehwelle 4 ist ein Mitnehmer 15 verbunden, der seinerseits an einem Greiferschlitten 16 des Greifersystems 3 angreift. Neben dem Greiferschlitten 16 gehören zum Greifersystem 3 eine Greiferwelle 17 mit Greiferfingern 18, die mit Greiferaufschlägen 19 korrespondieren. Das Greifersystem 3 ist als funktionelle Einheit axial verschiebbar gelagert, indem der Greiferschlitten 16 in Führungen 20 des Zylinders 1 aufgenommen ist.
In an sich bekannter Weise werden Bogen in einem Bogenanleger vereinzelt und über einen Bändertisch einem Anlegtisch zugeführt. Hier werden die Bogen an Vordermarken nach der Vorderkante ausgerichtet. Durch Messmittel wird die Ist-Lage der Seitenkante erfasst und ein Messwert generiert, der einer Auswerteinheit zu einem Soll-Ist-Vergleich zugeführt wird. Weicht der Ist-Wert von einem vorgegebenen Soll-Wert ab, wird von der Auswerteinheit ein Stellsignal erzeugt, mit dem der Motor 12 angesteuert wird. Der Motor 12 läuft mit einer Drehzahl um, die synchron der Drehzahl des Zylinders 1 folgt. Die Drehzahlsynchronisation des Motors 12 mit dem Zylinder 1 wird durch einen maschineninternen oder einen separaten, nicht dargestellten Drehzahlgeber realisiert. Dabei wird ständig die Momentandrehzahl der Maschine oder des Zylinders 1 erfasst und durch diesen Messwert der Motor 14 nachgeführt, so dass Motorwelle 13 und Ziehwelle 4 synchron umlaufen.
Der auf dem Anlegtisch erfasste Bogen wird direkt oder durch zusätzliche Mittel dem Zylinder 1 zugeführt und zwischen den Greiferfingern 18 sowie den Greiferaufschlägen 19 geklemmt und in die nachgeordnete Druckmaschine gefördert. Beim Transport in die Druckmaschine wird die Ist-Lage der Soll-Lage angepasst, indem das Greifersystem 3 axial in den Führungen 20 verschoben wird. Wird dem Motor 12 ein aus dem Soll-Ist-Vergleich resultierendes Stellsignal zugeführt, wird die Momentandrehzahl des Motors 12 vor- oder nacheilend verstellt und danach wieder synchronisiert. Durch die vor- oder nacheilende Verstellung der Drehzahl des Motors 12 wird eine Verdrehung zwischen der Gewindemutter 18 und Gewindespindel 9 initiiert und damit die Ziehwelle 4 in oder entgegen einer Pfeilrichtung 21 verschoben. Da die Ziehwelle 4 über den Mitnehmer 15 mit dem Greifersystem 3 in Wirkverbindung steht, folgt dieses der Stellbewegung der Ziehwelle 4, so dass der vom Greifersystem 3 geklemmte Bogen axial verschoben und damit bezüglich seiner Seitenkanten in die Soll-Lage verbracht wird. Nach der Übergabe des ausgerichteten Bogens an die Druckmaschine wird die Momentandrehzahl des Motors 12 nach- oder voreilend verstellt und damit das Greifersystem 3 in seine Ausgangsposition zurückgeführt. Beide Stellhandlungen, also das Verschieben des Greifersystems 3 aus einer Ausgangslage in eine die Soll-Lage des Bogens realisierende Position und das Zurückführen des Greifersystems 3 in seine Ausgangsposition wird innerhalb einer Umdrehung des Zylinders 1 realisiert.In one embodiment, the invention is explained in detail. In the accompanying drawing, a part of a cylinder 1 is shown in a sectional view. The cylinder 1 is mounted in side walls 2 by means of a roller bearing 6 and bushes 7, of which only one side wall 2 is shown. In the cylinder 1, a gripper system 3 is arranged. In the cylinder 1, a pulling shaft 4 is concentrically provided, which is guided in bearings 5. At the outer end of the pull shaft 4 is rotatably connected to a threaded nut 8 is provided, into which a threaded spindle 9 engages. The threaded spindle 9 is mounted secured against axial displacement by thrust bearing 10 in a motor flange 11. The motor flange 11 is arranged fixed to the frame on the side wall 2. With the motor flange 11, a motor 12 is fixedly connected. A motor shaft 13 of the motor 12 is coupled by a torsionally stiff coupling 14 with the threaded spindle 9.
With the pull shaft 4, a driver 15 is connected, which in turn acts on a gripper carriage 16 of the gripper system 3. In addition to the gripper carriage 16 belong to the gripper system 3, a gripper shaft 17 with gripper fingers 18 which correspond with gripper clutches 19. The gripper system 3 is mounted as a functional unit axially displaceable by the gripper carriage 16 is received in guides 20 of the cylinder 1.
In a conventional manner, sheets are singulated in a sheet feeder and fed via a belt table a feed table. Here, the bows are aligned to front marks after the leading edge. By measuring means, the actual position of the side edge is detected and generates a measured value, which is supplied to an evaluation unit for a target-actual comparison. If the actual value deviates from a predetermined desired value, the evaluation unit generates an actuating signal with which the motor 12 is activated. The motor 12 rotates at a speed which follows the rotational speed of the cylinder 1 synchronously. The speed synchronization of the engine 12 with the cylinder 1 is realized by a machine-internal or a separate, not shown speed sensor. In this case, the instantaneous speed of the machine or of the cylinder 1 is constantly detected and tracked by this measured value of the motor 14, so that the motor shaft 13 and the drawing shaft 4 rotate synchronously.
The recorded on the feed table sheet is fed directly or by additional means the cylinder 1 and clamped between the gripper fingers 18 and the gripper hooks 19 and conveyed to the downstream printing press. When transported to the printing press, the actual position of the desired position is adjusted by the gripper system 3 is axially displaced in the guides 20. If the motor 12 supplied from the target-actual comparison resulting control signal, the instantaneous speed of the motor 12 is moved forward or backward and then synchronized again. Due to the leading or lagging adjustment of the speed of the Motors 12, a rotation between the threaded nut 18 and threaded spindle 9 initiated and thus the pulling shaft 4 in or against a direction of arrow 21 is moved. Since the pulling shaft 4 is in operative connection via the driver 15 with the gripper system 3, this follows the adjusting movement of the pulling shaft 4, so that the sheet clamped by the gripper system 3 is axially displaced and thus spent with respect to its side edges in the desired position. After the transfer of the aligned sheet to the printing press, the instantaneous speed of the motor 12 is postponed or advanced and thus the gripper system 3 returned to its original position. Both Stellhandlungen, so moving the gripper system 3 from a starting position in a target position of the sheet realizing position and returning the gripper system 3 to its original position is realized within a revolution of the cylinder 1.

Es ist grundsätzlich auch möglich, auf eine Rückführung des Greifersystems 3 in seine Ausgangsposition zu verzichten und unmittelbar in der Position, durch die der Bogen in seine Soll-Lage gebracht wurde, einen Folgebogen zu erfassen und aus der Ist-Lage der Soll-Lage zuzuführen.It is in principle also possible to dispense with a return of the gripper system 3 to its original position and directly in the position by which the sheet was brought into its desired position, to detect a subsequent sheet and feed it from the actual position of the desired position ,

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Zylindercylinder
22
SeitenwandSide wall
33
Greifersystemgripper system
44
Ziehwellepulling shaft
55
Lagercamp
66
Wälzlagerroller bearing
77
BuchseRifle
88th
Gewindemutterthreaded nut
99
Gewindespindelscrew
1010
Axiallagerthrust
1111
Motorflanschmotor flange
1212
Motorengine
1313
Motorwellemotor shaft
1414
Kupplungclutch
1515
Mitnehmertakeaway
1616
Greiferschlittengripper carriages
1717
Greiferwellegripper shaft
1818
Greiferfingergripper fingers
1919
Greiferaufschlaggripper
2020
Führungguide
2121
Pfeilrichtungarrow

Claims (3)

  1. Device for lateral aligning of sheets in a rotary sheet printing machine with a gripper system which is mounted in a cylinder to be axially displaceable and which can be displaced by a setting element able to be influenced by way of an evaluating unit, characterised in that the gripper system (3) is connected with a draw shaft (4), which is arranged concentrically in the cylinder (1) and which has at its outer end a threaded nut (8), which is arranged to be secure against relative rotation and in which engages a threaded spindle (9) connected in rotationally fast manner with a motor shaft (13) of a motor (12) driven synchronously with the cylinder (1), and the motor (12) is drivable to be leading or trailing within a working cycle.
  2. Device according to claim 1, characterised in that the synchronous drive of the motor (12) is carried out by means of a rotational speed transmitter or by a rotational speed synchronisation internal to the machine.
  3. Device according to claim 1, characterised in that a setting signal can be generated by a target/actual comparison of the position of the side edge of the sheet to be aligned and can be fed to the motor (12) for leading or trailing adjustment of its rotational speed.
EP20030002274 2002-02-12 2003-02-01 Apparatus for laterally aligning sheets Expired - Lifetime EP1334827B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10205633 2002-02-12
DE2002105633 DE10205633A1 (en) 2002-02-12 2002-02-12 Device for the lateral alignment of sheets

Publications (2)

Publication Number Publication Date
EP1334827A1 EP1334827A1 (en) 2003-08-13
EP1334827B1 true EP1334827B1 (en) 2006-10-04

Family

ID=27588539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030002274 Expired - Lifetime EP1334827B1 (en) 2002-02-12 2003-02-01 Apparatus for laterally aligning sheets

Country Status (2)

Country Link
EP (1) EP1334827B1 (en)
DE (2) DE10205633A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047328A1 (en) 2008-09-16 2010-04-15 Heidelberger Druckmaschinen Ag Device for lateral adjustment of sheet on cylinder of processing machine for rotary sheet printing machine, has stationary actuator and transmission for converting rotary motion of servomotor into linear movement of gripper device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009380A1 (en) * 2006-03-01 2007-09-06 Koenig & Bauer Aktiengesellschaft Paper sheet printing press has control unit comparing paper margin alignment with target value
DE102006055547A1 (en) * 2006-11-24 2008-05-29 Koenig & Bauer Aktiengesellschaft Sheet feeding and aligning device for sheet printing machine, has actuator formed as combination drive including linear drive that is driven to sheet retaining system in axial direction for realizing target position of side edge of sheet
DE102007061398A1 (en) 2007-12-19 2009-06-25 Koenig & Bauer Aktiengesellschaft Transparent or translucent sheet's edge detecting method for use in sheet processing machine, involves providing sheet with marking by marking unit in distance to front edge before detection of position of side edge
DE102008031275A1 (en) * 2008-07-02 2010-01-07 Koenig & Bauer Aktiengesellschaft Device for lateral adjustment of print substrate sheet in sheet fed printing press, has gripper finger shaft and gripper support shaft that are synchronously adjustable in axial direction
DE102008032717A1 (en) 2008-07-11 2010-01-14 Koenig & Bauer Aktiengesellschaft Load distributor for use in sheet processing printing machine, has single drives, where law of motion of single drives is provided such that moment distributions of single drives form resulting moment distribution

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808528C3 (en) * 1978-02-28 1981-10-29 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Sheet gripper device in which the sheet grippers can be moved in the axial direction
DE3644431A1 (en) * 1986-12-24 1988-09-01 Koenig & Bauer Ag ARCH GRIPPER DEVICE IN A ROTARY PRINTING MACHINE WITH ARC GRIPPERS THAT ARE MOVABLE IN THE AXIAL DIRECTION
DE3721900A1 (en) * 1987-07-02 1989-01-19 Heidelberger Druckmasch Ag REMOTE-CONTROLLED ADJUSTMENTS FOR THE ELASTIC DEFORMING OF A REGISTER RAIL
DE4406740B4 (en) * 1994-03-02 2005-01-27 Heidelberger Druckmaschinen Ag Device for register correction in a sheet-fed press
DE19524891A1 (en) * 1995-07-08 1997-01-09 Heidelberger Druckmasch Ag Device for the lateral alignment of sheets in the feeder of a sheet-fed rotary printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047328A1 (en) 2008-09-16 2010-04-15 Heidelberger Druckmaschinen Ag Device for lateral adjustment of sheet on cylinder of processing machine for rotary sheet printing machine, has stationary actuator and transmission for converting rotary motion of servomotor into linear movement of gripper device

Also Published As

Publication number Publication date
DE50305220D1 (en) 2006-11-16
EP1334827A1 (en) 2003-08-13
DE10205633A1 (en) 2003-08-14

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