EP1354833B1 - Method for laterally aligning sheets - Google Patents

Method for laterally aligning sheets Download PDF

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Publication number
EP1354833B1
EP1354833B1 EP03006271A EP03006271A EP1354833B1 EP 1354833 B1 EP1354833 B1 EP 1354833B1 EP 03006271 A EP03006271 A EP 03006271A EP 03006271 A EP03006271 A EP 03006271A EP 1354833 B1 EP1354833 B1 EP 1354833B1
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EP
European Patent Office
Prior art keywords
sheet
gripper
gripper system
measuring device
unit connected
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.)
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Application number
EP03006271A
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German (de)
French (fr)
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EP1354833A2 (en
EP1354833A3 (en
Inventor
Volkmar Schumann
Carsten Reinsch
Steffen Tenzer
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Publication of EP1354833A3 publication Critical patent/EP1354833A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12Revolving grippers, e.g. mounted on arms, frames or cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20Assisting by photoelectric, sonic, or pneumatic indicators

Definitions

  • the invention relates to a method for aligning sheets after the side edge, in which the sheets to be aligned are conveyed within a scattering area on a feed table on which the actual position of the side edge determined by a measuring device and the respective foremost sheet detected by a Bogenbeschreibungsvorraum and the Gripper system is fed to a drum, wherein the gripper system for the realization of the desired position of the side edge, which, objectified by an approximately centrally provided in the scattering range side draw line, can be moved in the axial direction.
  • a sheet transported by the sheet accelerating device from the feed table to the gripper system of the drum is brought into the desired position by axial displacement of the gripper system with respect to the side edge and then transferred to the gripper device of a downstream cylinder.
  • the gripper system and the gripping device come too close to the sheet transfer in large drawing paths, so that it comes in the processing of thick substrates to impermissible bow deformations.
  • Another way to eliminate these disadvantages is to make the distances between the grippers of the gripper system and the grippers of the gripping device large and the width of the gripper low. However, this requires a poor bowing, which leads to an increased spoilage and business interruptions.
  • the object of the invention is to provide a method for aligning sheets, which can be realized with little effort and increases the productivity of a printing press.
  • the object is achieved by a method according to the features of claim 1.
  • the inventive solution it is possible to make the distances of the intermeshing sheet holding systems so that without height adjustment of sheet holding systems, a sheet guide can be realized, which ensures trouble-free sheet travel even with problematic substrates.
  • FIG. 1 shows a sheet-fed system consisting of a feed table 1 with front marks 2 located in a position on the feed table 1, a sheet accelerating device 3, which is designed as a vibration system 4, a drum 5 with a gripper system 6 and a cylinder 7 arranged downstream of the drum 5, which is equipped with a gripping device 8, shown.
  • the oscillating system 4 has a vibrating gripper system 9, which consists of gripper fingers 10 and a gripper bar 11, wherein the vibrating gripper system 9 is associated frame-fixed the vibrating system 4.
  • the gripper system 6 of the drum 5 is provided in the axial direction displaceable in the drum 5 and consists of grippers 14, which cooperate with gripper clutches 15.
  • the feed table 1 is shown with a bow 16 and a follower sheet 17. From the feed table 1 only in the sheet conveying direction 18 on the left side - one side I - located half is shown. On the opposite side there is a page II.
  • the sheets 16,17 are transported in the sheet conveying direction 18 on the feed table 1.
  • a measuring device 21 is slidably and lockably provided in a measuring device 21 is slidably and lockably provided. The measuring device 21 can be moved within the format range 20 to be set to the formats to be processed.
  • the measuring device 21 extends at least over a scattering area 22 and is connected to an evaluation unit, not shown.
  • the scattering area 22 is the area in which the side edges of the sheets reaching the processing can run in, so that their actual position can still be reliably detected and brought into a desired position.
  • the desired position is identical to the position of a side draw line 23, which is provided approximately centrally in the scattering region 22.
  • FIG. 3 shows different patterns of interlocking sheet holding systems.
  • FIG. 3a shows the oscillating gripper system 9, the gripper system 6 of the downstream drum 5 and the gripping device 8 of the cylinder 7.
  • the gripper system 6 of the drum 5 does not perform any axial movement for aligning with the side edge.
  • the gripper fingers 10, gripper 14 and sheet gripper 12 have a width a, while between the gripper fingers 10, the grippers 14 or the sheet grippers 12, a distance b is provided. Between two interengaging sheet holding systems 9,6,8 a system distance c is provided. In this case, the system distance c is chosen so that the resulting during the transfer / acquisition deformations of the material to be processed are so small that the productivity of the printing press is not adversely affected. In the acquisition / transfer of the bow, the gripper fingers 10 / gripper 14 and gripper 14 / sheet gripper 12 are arranged centrally to each other.
  • FIG. 3b shows the state of the art in which the gripper system 6 of the drum 5 is displaced axially in order to be able to align the sheet-like material to be processed for processing with one side edge.
  • the grippers 14 of the gripper system 6 are arranged in the sheet transfer centered on the gripper fingers 10 of the vibratory gripper system 9 and can subsequently from its center position X a maximum of a pulling path Z 2 in the direction of page I or page II.
  • the gripper system 6 is moved in the direction of the side II. After realization of a maximum pulling distance Z 2 the arcuate processing material held by the gripper system 6 is transferred to the gripping device 8 and subsequently the gripper system 6 is returned to its starting position (middle position X).
  • the width a of the gripper fingers 10, the gripper 14 and the sheet gripper 12 to the maximum pulling distance Z 2 decreases and so does the distance b around Z 2 increased.
  • the sheet-shaped printing material is transferred from the grippers 14 of the gripper system 6 to the gripping device 8 of the cylinder 7. Thereafter, the gripper system 6 is not returned to a central position (center position X) to the oscillating gripper system 9, but moved to a different position to take over the subsequent sheet-shaped substrate.
  • This takeover position results from the fact that by the measuring device 21 in the feed table 1 and the evaluation unit from the actual position and the target position for the subsequent sheet-shaped printing material to be realized by the gripper system 6 pulling path by amount and direction is determined.
  • the printing material is taken over by the gripper system 6 from the oscillating gripper system 9 and subsequently displaced during transport to the gripping device 8, the gripper system 6 by the amount determined by the measuring device 21 / evaluation and thus realizes the desired position.
  • an arc 16 and a subsequent arc 17, as shown in the embodiment in Fig. 2 the procedure is as follows.
  • the sheets 16,17 are promoted to the feed table 1, that the side edges within the scattering range 22, which is identical to the maximum pull Z, shrink.
  • the desired position is objectified by the side-line 23. In order for the sheet 16 to move from the actual position to the desired position, a partial drawing path e 1 must be realized, the drawing direction being directed to the side-drawing line 23.
  • the follower sheet 17 must cover a partial pulling path e 2 for realizing the desired position, wherein the pulling direction is likewise directed to the side draw line 23.
  • the sheet 16 is taken over by the gripper system and this moved in the axial direction and in the direction of the side line 23 and the side I to the partial pulling path e 1 , so that the sheet 16 is brought into the desired position. Subsequently, the sheet 16 is transferred to the gripping device 8.
  • the actual position of the subsequent sheet 17 is detected by the measuring device 21 and a pulling path e 2 and the drawing direction, which is directed away from the side I and directed to the side-pull line 23, detected.
  • the gripper system 6 initiated by the downstream of the measuring device 21 evaluation unit, the transfer position for the subsequent sheet 17 is controlled.
  • the takeover position is again eccentric to the partial Ziehweg e 2 2 spaced from the side-pull line 23. In this takeover position, the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Registering Or Overturning Sheets (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Ausrichten von Bogen nach der Seitenkante, bei denen die auszurichtenden Bogen innerhalb eines Streubereiches auf einem Anlegtisch gefördert werden, auf dem die Ist-Lage der Seitenkante mittels einer Messeinrichtung festgestellt und der jeweils vorderste Bogen von einer Bogenbeschleunigungsvorrichtung erfasst und dem Greifersystem einer Trommel zugeführt wird, wobei das Greifersystem zur Realisierung der Soll-Lage der Seitenkante, die, vergegenständlicht durch eine etwa mittig im Streubereich vorgesehene Seitenziehlinie, in axialer Richtung verschoben werden kann.The invention relates to a method for aligning sheets after the side edge, in which the sheets to be aligned are conveyed within a scattering area on a feed table on which the actual position of the side edge determined by a measuring device and the respective foremost sheet detected by a Bogenbeschleunigungsvorrichtung and the Gripper system is fed to a drum, wherein the gripper system for the realization of the desired position of the side edge, which, objectified by an approximately centrally provided in the scattering range side draw line, can be moved in the axial direction.

Aus der DE 36 44 431 A1 ist es bekannt, Bogen nach der Seitenkante auf einer Trommel durch axiales Verschieben des Greifersystems auszurichten. Die von einem Bogenanleger vereinzelten Bogen werden so auf den Anlegtisch transportiert, dass die Seitenkanten innerhalb eines Streubereichs einlaufen. Die Ist-Lage der Seitenkante wird von einer Messeinrichtung erfasst und mit einer Soll-Lage verglichen. Dabei ist die Soll-Lage identisch mit einer sogenannten Seitenziehlinie, die etwa mittig im Streubereich vorgesehen ist. Bei Abweichungen der Ist-Lage von der Soll-Lage wird von der Messeinrichtung ein Stellsignal generiert und dieses einer Stelleinrichtung zugeführt, welche das Greifersystem der einer Bogenbeschleunigungseinrichtung nachgeordneten Trommel in axialer Richtung verschiebt. Ein durch die Bogenbeschleunigungseinrichtung vom Anlegtisch zum Greifersystem der Trommel transportierter Bogen wird durch axiales Verschieben des Greifersystems bezüglich der Seitenkante in die Soll-Lage gebracht und anschließend an die Greifeinrichtung eines nachgeordneten Zylinders übergeben.
Dabei besteht die Gefahr, dass bei großen Ziehwegen sich das Greifersystem und die Greifeinrichtung bei der Bogenübergabe zu nahe kommen, so dass es bei der Verarbeitung von dicken Bedruckstoffen zu unzulässigen Bogenverformungen kommt. Um diese Nachteile zu beseitigen, ist es bekannt, die Greiferaufschläge des Greifersystems der Trommel höhenverstellbar auszugestalten, was einen hohen Aufwand erfordert. Eine weitere Möglichkeit, diese Nachteile zu beseitigen, besteht darin, die Abstände zwischen den Greifern des Greifersystems und den Greifern der Greifeinrichtung groß und die Breite der Greifer gering auszubilden. Das bedingt aber eine schlechte Bogenführung, was zu einem erhöhten Makulaturanfall und zu Betriebsunterbrechungen führt.
From DE 36 44 431 A1 it is known to align sheets to the side edge on a drum by axial displacement of the gripper system. The sheets separated by a sheet feeder are transported on the feed table so that the side edges run in within a scattering area. The actual position of the side edge is detected by a measuring device and compared with a desired position. In this case, the desired position is identical to a so-called side draw line, which is provided approximately centrally in the scattering area. In the event of deviations of the actual position from the desired position, an actuating signal is generated by the measuring device and supplied to an actuating device which displaces the gripper system of the drum downstream of a sheet accelerating device in the axial direction. A sheet transported by the sheet accelerating device from the feed table to the gripper system of the drum is brought into the desired position by axial displacement of the gripper system with respect to the side edge and then transferred to the gripper device of a downstream cylinder.
There is a risk that the gripper system and the gripping device come too close to the sheet transfer in large drawing paths, so that it comes in the processing of thick substrates to impermissible bow deformations. In order to eliminate these disadvantages, it is known to design the gripper loads of the gripper system of the drum height adjustable, which requires a lot of effort. Another way to eliminate these disadvantages is to make the distances between the grippers of the gripper system and the grippers of the gripping device large and the width of the gripper low. However, this requires a poor bowing, which leads to an increased spoilage and business interruptions.

Aufgabe der Erfindung ist es, ein Verfahren zum Ausrichten von Bogen zu schaffen, das mit einem geringen Aufwand zu realisieren ist und die Produktivität einer Druckmaschine erhöht.The object of the invention is to provide a method for aligning sheets, which can be realized with little effort and increases the productivity of a printing press.

Erfindungsgemäß wird die Aufgabe durch ein Verfahren nach den Merkmalen des Anspruchs 1 gelöst. Durch die erfindungsgemäße Lösung ist es möglich, die Abstände der ineinandergreifenden Bogenhaltesysteme so zu gestalten, dass ohne Höhenverstellung von Bogenhaltesystemen eine Bogenführung realisiert werden kann, die auch bei problembehafteten Bedruckstoffen einen störungsfreien Bogenlauf sicherstellt.According to the invention the object is achieved by a method according to the features of claim 1. The inventive solution, it is possible to make the distances of the intermeshing sheet holding systems so that without height adjustment of sheet holding systems, a sheet guide can be realized, which ensures trouble-free sheet travel even with problematic substrates.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. In den zugehörigen Zeichnungen zeigen

Fig. 1
eine Bogenanlage in der Seitenansicht
Fig. 2
eine schematische Darstellung eines Anlegtischs in der Draufsicht
Fig. 3
eine Gegenüberstellung der Schemata von verschieden ineinandergreifenden Bogenhaltesystemen
In one embodiment, the invention is explained in detail. In the accompanying drawings show
Fig. 1
a bow plant in the side view
Fig. 2
a schematic representation of a feed table in plan view
Fig. 3
a comparison of the schemes of different interlocking sheet holding systems

In Figur 1 ist eine Bogenanlage, bestehend aus einem Anlegtisch 1 mit in einer Position am Anlegtisch 1 befindlichen Vordermarken 2, einer Bogenbeschleunigungsvorrichtung 3, die als Schwinganlage 4 ausgebildet ist, einer Trommel 5 mit einem Greifersystem 6 und einem der Trommel 5 nachgeordneten Zylinder 7, der mit einer Greifeinrichtung 8 ausgestattet ist, dargestellt. Die Schwinganlage 4 weist ein Schwingergreifersystem 9 auf, das aus Greiferfingern 10 und einer Greiferaufschlagleiste 11 besteht, wobei das Schwingergreifersystem 9 gestellfest der Schwinganlage 4 zugeordnet ist. Das Greifersystem 6 der Trommel 5 ist in axialer Richtung verschiebbar in der Trommel 5 vorgesehen und besteht aus Greifern 14, die mit Greiferaufschlägen 15 zusammenwirken. Die dem Zylinder 7 zugeordnete Greifeinrichtung 8, die aus Bogengreifern 12 und Greiferauflagen 13 besteht, ist gestellfest im Zylinder 7 gelagert.
In Figur 2 ist der Anlegtisch 1 mit einem Bogen 16 und einem Folgebogen 17 dargestellt. Vom Anlegtisch 1 ist nur die in Bogenförderrichtung 18 auf der linken Seite - einer Seite I - gelegene Hälfte dargestellt. Auf der gegenüberliegenden Seite befindet sich eine Seite II. Die Bogen 16,17 werden in Bogenförderrichtung 18 auf den Anlegtisch 1 transportiert. In einer Aussparung 19 des Anlegtischs 1, die sich quer zur Bogenförderrichtung 18 über mindestens einen Formatstellbereich 20 erstreckt, ist verschiebbar und arretierbar eine Messeinrichtung 21 vorgesehen. Die Messeinrichtung 21 kann innerhalb des Formatbereichs 20 verschoben und so auf die zur Verarbeitung gelangenden Formate eingestellt werden. Die Messeinrichtung 21 erstreckt sich mindestens über einen Streubereich 22 und ist mit einer nicht dargestellten Auswerteinheit verbunden. Der Streubereich 22 ist der Bereich, in dem die Seitenkanten der zur Verarbeitung gelangenden Bogen einlaufen können, damit deren Ist-Lage noch sicher erfasst sowie in eine Soll-Lage gebracht werden kann. Dabei ist die Soll-Lage identisch mit der Lage einer Seitenziehlinie 23, die etwa mittig im Streubereich 22 vorgesehen ist.
In Figur 3 sind verschiedene Schemata von ineinandergreifenden Bogenhaltesystemen gegenübergestellt. Die Figur 3a zeigt das Schwinggreifersystem 9, das Greifersystem 6 der nachgeordneten Trommel 5 und die Greifeinrichtung 8 des Zylinders 7. Das Greifersystem 6 der Trommel 5 führt keine axiale Bewegung zum Ausrichten nach der Seitenkante aus. Die Greiferfinger 10, Greifer 14 und Bogengreifer 12 haben eine Breite a, während zwischen den Greiferfingern 10, den Greifern 14 oder den Bogengreifern 12 ein Abstand b vorgesehen ist. Zwischen zwei jeweils ineinandergreifenden Bogenhaltesystemen 9,6,8 ist ein Systemabstand c vorgesehen. Dabei ist der Systemabstand c so gewählt, dass die bei der Übergabe/Übernahme entstehenden Verformungen des zur Verarbeitung gelangenden Materials so gering sind, dass die Produktivität der Druckmaschine nicht nachteilig beeinflusst wird.
Bei der Übernahme/Übergabe der Bogen sind die Greiferfinger 10/Greifer 14 bzw. Greifer 14/Bogengreifer 12 mittig zueinander angeordnet.
1 shows a sheet-fed system consisting of a feed table 1 with front marks 2 located in a position on the feed table 1, a sheet accelerating device 3, which is designed as a vibration system 4, a drum 5 with a gripper system 6 and a cylinder 7 arranged downstream of the drum 5, which is equipped with a gripping device 8, shown. The oscillating system 4 has a vibrating gripper system 9, which consists of gripper fingers 10 and a gripper bar 11, wherein the vibrating gripper system 9 is associated frame-fixed the vibrating system 4. The gripper system 6 of the drum 5 is provided in the axial direction displaceable in the drum 5 and consists of grippers 14, which cooperate with gripper clutches 15. The cylinder 7 associated gripping device 8, which consists of sheet grippers 12 and gripper pads 13 is fixed to the frame mounted in the cylinder 7.
In Figure 2, the feed table 1 is shown with a bow 16 and a follower sheet 17. From the feed table 1 only in the sheet conveying direction 18 on the left side - one side I - located half is shown. On the opposite side there is a page II. The sheets 16,17 are transported in the sheet conveying direction 18 on the feed table 1. In a recess 19 of the feed table 1, which extends transversely to the sheet conveying direction 18 over at least one format adjustment area 20, a measuring device 21 is slidably and lockably provided. The measuring device 21 can be moved within the format range 20 to be set to the formats to be processed. The measuring device 21 extends at least over a scattering area 22 and is connected to an evaluation unit, not shown. The scattering area 22 is the area in which the side edges of the sheets reaching the processing can run in, so that their actual position can still be reliably detected and brought into a desired position. In this case, the desired position is identical to the position of a side draw line 23, which is provided approximately centrally in the scattering region 22.
FIG. 3 shows different patterns of interlocking sheet holding systems. FIG. 3a shows the oscillating gripper system 9, the gripper system 6 of the downstream drum 5 and the gripping device 8 of the cylinder 7. The gripper system 6 of the drum 5 does not perform any axial movement for aligning with the side edge. The gripper fingers 10, gripper 14 and sheet gripper 12 have a width a, while between the gripper fingers 10, the grippers 14 or the sheet grippers 12, a distance b is provided. Between two interengaging sheet holding systems 9,6,8 a system distance c is provided. In this case, the system distance c is chosen so that the resulting during the transfer / acquisition deformations of the material to be processed are so small that the productivity of the printing press is not adversely affected.
In the acquisition / transfer of the bow, the gripper fingers 10 / gripper 14 and gripper 14 / sheet gripper 12 are arranged centrally to each other.

Figur 3b zeigt den Stand der Technik, bei dem das Greifersystem 6 der Trommel 5 axial verschoben wird, um das zur Verarbeitung gelangende bogenförmige Verarbeitungsgut nach einer Seitenkante ausrichten zu können. Die Greifer 14 des Greifersystems 6 sind bei der Bogenübernahme mittig zu den Greiferfingern 10 des Schwingergreifersystems 9 angeordnet und können nachfolgend aus ihrer Mittenposition X maximal um einen Ziehweg Z 2

Figure imgb0001
in Richtung auf die Seite I oder die Seite II verschoben werden. In der Figur 3b ist dargestellt, dass das Greifersystem 6 in Richtung auf die Seite II verschoben wird. Nach Realisierung eines maximalen Ziehweges Z 2
Figure imgb0002
wird das von dem Greifersystem 6 gehaltene bogenförmige Verarbeitungsgut an die Greifeinrichtung 8 übergeben und nachfolgend das Greifersystem 6 in seine Ausgangsposition (Mittenposition X) zurückgeführt.FIG. 3b shows the state of the art in which the gripper system 6 of the drum 5 is displaced axially in order to be able to align the sheet-like material to be processed for processing with one side edge. The grippers 14 of the gripper system 6 are arranged in the sheet transfer centered on the gripper fingers 10 of the vibratory gripper system 9 and can subsequently from its center position X a maximum of a pulling path Z 2
Figure imgb0001
in the direction of page I or page II. In the figure 3b is shown that the gripper system 6 is moved in the direction of the side II. After realization of a maximum pulling distance Z 2
Figure imgb0002
the arcuate processing material held by the gripper system 6 is transferred to the gripping device 8 and subsequently the gripper system 6 is returned to its starting position (middle position X).

Um bei der Realisierung eines maximalen Ziehweges Z 2

Figure imgb0003
in Richtung der Seite I oder II einen Systemabstand c gewährleisten zu können, ist die Breite a der Greiferfinger 10, der Greifer 14 und der Bogengreifer 12 um den maximalen Ziehweg Z 2
Figure imgb0004
verringert und so der Abstand b um Z 2
Figure imgb0005
vergrößert.In order to realize a maximum pulling distance Z 2
Figure imgb0003
in the direction of the side I or II to be able to ensure a system distance c, the width a of the gripper fingers 10, the gripper 14 and the sheet gripper 12 to the maximum pulling distance Z 2
Figure imgb0004
decreases and so does the distance b around Z 2
Figure imgb0005
increased.

Damit wird zwar erreicht, dass der Systemabstand c zwischen dem Greifersystem 6 und der Greifeinrichtung 8 bei Realisierung eines Ziehweges Z 2

Figure imgb0006
eingehalten wird, jedoch bildet sich zwischen den ineinandergreifenden Greifern 14 und Bogengreifern 12 ein Bereich c + Z, in dem eine Bogenführung fehlt. Damit ist es möglich, dass innerhalb diesen Bereiches c + Z eine Bogenecke nicht geführt wird, so dass es zu Beeinträchtigungen des Bogenlaufs und damit zu Betriebsstörungen kommt.
Dieser Nachteil wird in einer Ausführungsform nach Fig. 3c beseitigt. Bei dieser Ausführungsform werden die Greiferfinger 10, Greifer 14 und Bogengreifer 12 in einer Breite Z 4
Figure imgb0007
ausgeführt. Damit wird der Abstand b um Z 4
Figure imgb0008
vergrößert, so dass ein Systemabstand c eingehalten wird bei einem Bereich c + Z 2 .
Figure imgb0009
Um aber einen maximalen Ziehweg Z 2
Figure imgb0010
in Richtung der Seite I oder Seite II realisieren zu können, wird wie folgt verfahren.
Wird ein bogenförmiger Bedruckstoff zugeführt, der um Z 2
Figure imgb0011
von der Seite I wegbewegt werden muss, um bezüglich der Seitenkante die Soll-Lage und damit die Seitenziehlinie 23 zu erreichen, werden die Greifer 14 des Greifersystems 6 um die Hälfte des zu realisierenden Ziehweges Z 2 ,
Figure imgb0012
also um Z 4
Figure imgb0013
in Richtung der Seite I bewegt. Danach wird der bogenförmige Bedruckstoff von den Greifern 14 des Greifersystems 6 geklemmt und nachfolgend das Greifersystem 6 um Z 2
Figure imgb0014
von der Seite I wegbewegt und so die Soll-Lage realisiert. Anschließend wird der bogenförmige Bedruckstoff von den Greifern 14 des Greifersystems 6 an die Greifeinrichtung 8 des Zylinders 7 übergeben. Danach wird das Greifersystem 6 nicht in eine Position mittig (Mittenposition X) zum Schwinggreifersystem 9 zurückgeführt, sondern in eine davon abweichende Position zur Übernahme des nachfolgenden bogenförmigen Bedruckstoffs verschoben. Diese Übernahmeposition ergibt sich dadurch, dass durch die Messeinrichtung 21 im Anlegtisch 1 und der Auswerteinheit aus der Ist-Lage und der Soll-Lage für den nachfolgenden bogenförmigen Bedruckstoff ein durch das Greifersystem 6 zu realisierender Ziehweg nach Betrag und Richtung ermittelt wird. In dieser Übernahmeposition wird der Bedruckstoff durch das Greifersystem 6 vom Schwinggreifersystem 9 übernommen und nachfolgend während des Transports zur Greifeinrichtung 8 das Greifersystem 6 um den von der Messeinrichtung 21/Auswerteinheit ermittelten Betrag verschoben und damit die Soll-Lage realisiert.
Bei einem Bogen 16 und einem Folgebogen 17, wie im Ausführungsbeispiel in Fig. 2 dargestellt, wird wie folgt verfahren. Die Bogen 16,17 werden so auf den Anlegtisch 1 gefördert, dass die Seitenkanten innerhalb des Streubereichs 22, der identisch ist mit dem maximalen Ziehweg Z, einlaufen. Die Soll-Lage ist durch die Seitenziehlinie 23 vergegenständlicht. Damit der Bogen 16 aus der Ist-Lage in die Soll-Lage gelangt, muss ein partieller Ziehweg e1 realisiert werden, wobei die Ziehrichtung auf die Seitenziehlinie 23 gerichtet ist. Der Folgebogen 17 muss zur Realisierung der Soll-Lage einen partiellen Ziehweg e2 zurücklegen, wobei die Ziehrichtung ebenfalls auf die Seitenziehlinie 23 gerichtet ist.
Nach der erfindungsgemäßen Lösung wird zur Übernahme des Bogens 16 durch das Greifersystem 6 dieses in die Übernahmeposition gesteuert, die außermittig bei e 1 2
Figure imgb0015
liegt. Nachfolgend wird der Bogen 16 vom Greifersystem übernommen und dieser in axialer Richtung und in Richtung der Seitenziehlinie 23 sowie der Seite I verschoben um den partiellen Ziehweg e1, so dass der Bogen 16 in die Soll-Lage gebracht wird. Anschließend wird der Bogen 16 an die Greifeinrichtung 8 übergeben. Parallel dazu wird die Ist-Lage des Folgebogens 17 von der Messeinrichtung 21 erfasst und ein Ziehweg e2 sowie die Ziehrichtung, die von der Seite I weggerichtet und auf die Seitenziehlinie 23 gerichtet ist, detektiert. Nach der Übergabe des Bogens 16 an die Greifeinrichtung 8 wird das Greifersystem 6, initiiert durch die der Messeinrichtung 21 nachgeordneten Auswerteinheit, die Übernahmeposition für den Folgebogen 17 gesteuert. Die Übernahmeposition liegt wiederum außermittig, um den partiellen Ziehweg e 2 2
Figure imgb0016
von der Seitenziehlinie 23 beabstandet. In dieser Übernahmeposition wird derAlthough this ensures that the system distance c between the gripper system 6 and the gripping device 8 in the realization of a pulling path Z 2
Figure imgb0006
is maintained, however, forms between the intermeshing grippers 14 and sheet grippers 12 a range c + Z, in which a bow guide is missing. Thus it is possible that within this area c + Z a corner of the sheet is not performed, so that it comes to impairing the sheet travel and thus to malfunction.
This disadvantage is eliminated in an embodiment according to FIG. 3c. In this embodiment, the gripper fingers 10, gripper 14 and sheet gripper 12 are in one width Z 4
Figure imgb0007
executed. This will change the distance b Z 4
Figure imgb0008
increased, so that a system distance c is maintained at a range c + Z 2 ,
Figure imgb0009
But for a maximum pulling path Z 2
Figure imgb0010
in the direction of the side I or side II, the procedure is as follows.
Is fed to a sheet-shaped substrate, the order Z 2
Figure imgb0011
must be moved away from the side I in order to reach the desired position and thus the side-pull line 23 with respect to the side edge, the grippers 14 of the gripper system 6 by half of the pulling path to be realized Z 2 .
Figure imgb0012
So um Z 4
Figure imgb0013
moved towards the side I. Thereafter, the sheet-shaped substrate is clamped by the grippers 14 of the gripper system 6 and subsequently the gripper system 6 order Z 2
Figure imgb0014
moved away from the side I and so realized the desired position. Subsequently, the sheet-shaped printing material is transferred from the grippers 14 of the gripper system 6 to the gripping device 8 of the cylinder 7. Thereafter, the gripper system 6 is not returned to a central position (center position X) to the oscillating gripper system 9, but moved to a different position to take over the subsequent sheet-shaped substrate. This takeover position results from the fact that by the measuring device 21 in the feed table 1 and the evaluation unit from the actual position and the target position for the subsequent sheet-shaped printing material to be realized by the gripper system 6 pulling path by amount and direction is determined. In this transfer position, the printing material is taken over by the gripper system 6 from the oscillating gripper system 9 and subsequently displaced during transport to the gripping device 8, the gripper system 6 by the amount determined by the measuring device 21 / evaluation and thus realizes the desired position.
In an arc 16 and a subsequent arc 17, as shown in the embodiment in Fig. 2, the procedure is as follows. The sheets 16,17 are promoted to the feed table 1, that the side edges within the scattering range 22, which is identical to the maximum pull Z, shrink. The desired position is objectified by the side-line 23. In order for the sheet 16 to move from the actual position to the desired position, a partial drawing path e 1 must be realized, the drawing direction being directed to the side-drawing line 23. The follower sheet 17 must cover a partial pulling path e 2 for realizing the desired position, wherein the pulling direction is likewise directed to the side draw line 23.
After the solution according to the invention, the takeover of the sheet 16 by the gripper system 6, this controlled in the transfer position, the off-center at e 1 2
Figure imgb0015
lies. Subsequently, the sheet 16 is taken over by the gripper system and this moved in the axial direction and in the direction of the side line 23 and the side I to the partial pulling path e 1 , so that the sheet 16 is brought into the desired position. Subsequently, the sheet 16 is transferred to the gripping device 8. In parallel, the actual position of the subsequent sheet 17 is detected by the measuring device 21 and a pulling path e 2 and the drawing direction, which is directed away from the side I and directed to the side-pull line 23, detected. After the transfer of the sheet 16 to the gripping device 8, the gripper system 6, initiated by the downstream of the measuring device 21 evaluation unit, the transfer position for the subsequent sheet 17 is controlled. The takeover position is again eccentric to the partial Ziehweg e 2 2
Figure imgb0016
spaced from the side-pull line 23. In this takeover position, the

Folgebogen 17 von dem Greifersystem 6 erfasst und das Greifersystem 6 um den partiellen Ziehweg e2, initiiert durch die Messeinrichtung 21, in Richtung der Seitenziehlinie 23 verschoben und so die Soll-Lage des Folgebogens 17 realisiert.Sequence sheet 17 detected by the gripper system 6 and the gripper system 6 by the partial pulling path e 2 , initiated by the measuring device 21, moved in the direction of the side line 23 and so realized the desired position of the subsequent sheet 17.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Anlegtischfeed table
22
Vordermarkefront lay
33
BogenbeschleunigungsvorrichtungSheet acceleration device
44
Schwinganlageswing feeder
55
Trommeldrum
66
Greifersystemgripper system
77
Zylindercylinder
88th
Greifeinrichtunggripper
99
SchwingergreifersystemSchwinger gripper system
1010
Greiferfingergripper fingers
1111
GreiferaufschlagleisteGripper bar
1212
Bogengreifersheet grippers
1313
GreiferauflageGripper pad
1414
Greifergrab
1515
Greiferaufschlaggripper
1616
vorderster Bogenforemost bow
1717
Folgebogenepisode arc
1818
BogenförderrichtungSheet conveying direction
1919
Aussparungrecess
2020
FormatstellbereichFormat Range
2121
Messeinrichtungmeasuring device
2222
Streubereichstray field
2323
SeitenziehlinieSide pull line
aa
Breitewidth
bb
Abstanddistance
cc
Systemabstandsystem distance
ZZ
maximaler Ziehwegmaximum pulling distance
e1 e 1
partieller Ziehwegpartial drawing way
e2 e 2
partieller Ziehwegpartial drawing way
XX
Mittenpositioncenter position

Claims (2)

  1. Method of aligning sheets with respect to the side edge, in which the sheets (16, 17) to be aligned are conveyed within a margin-of-error area (22) on a feed table (1), on which the actual position of the side edge is established by means of a measuring device (21) and the respective foremost sheet (16) is detected by a sheet acceleration device (3) and fed to the gripper system (6) of a drum (5), wherein the gripper system (6) for realisation of the target position, which is concretised by a lateral draw line (23) provided approximately centrally in the margin-of-error area (22), can be displaced in axial direction from its centre position (X) towards a first side or a second side, characterised by the following steps:
    - a first partial draw travel (e1) by which the foremost sheet (16) must be displaced in the direction of the lateral draw line (23) for realisation of the target position is detected by the measuring device (21) and an evaluating unit connected therewith,
    - half of the first partial draw travel (e1/2) is formed in the measuring device (21) and in the evaluating unit connected therewith,
    - the gripper system (6) of the drum (5) is controlled by the measuring device (21) and the evaluating unit connected therewith into a take-over position which is offset by half the first partial draw travel (e1/2) with respect to the centre position (X) of the gripper system (6) in the direction of the side from which the sheet (16) has to be moved away,
    - the foremost sheet (16) is taken over from the sheet accelerating device (3) by the gripper system (6) and transported to a gripper device (8) of the cylinder (7),
    - in that case the gripper system (6), initiated by the measuring device (21) and the evaluating unit connected therewith, is displaced in the direction of the lateral draw line (23) through the first partial draw path (e1) and subsequently the foremost sheet (16) is transferred to the gripper device (8),
    - a second partial draw travel (e2) of a succeeding sheet (17) is ascertained at the same time, and half the second partial draw travel (e 2/2) is formed, by the measuring device (21) and the evaluating unit connected therewith and the gripper system (6) is controlled into a take-over position which is offset by half the second partial draw travel (e 2/2) with respect to the centre position (X) in the direction of the side from which the sheet (17) has to be moved away.
  2. Method according to claim 1, characterised in that the measuring device (21) can be displaced transversely to a sheet conveying direction (18) in the feed table (1) for format adaptation.
EP03006271A 2002-04-16 2003-03-21 Method for laterally aligning sheets Expired - Lifetime EP1354833B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10216758 2002-04-16
DE10216758A DE10216758A1 (en) 2002-04-16 2002-04-16 Procedure for aligning sheets by the side edge

Publications (3)

Publication Number Publication Date
EP1354833A2 EP1354833A2 (en) 2003-10-22
EP1354833A3 EP1354833A3 (en) 2004-06-23
EP1354833B1 true EP1354833B1 (en) 2006-05-31

Family

ID=28458856

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
EP (1) EP1354833B1 (en)
DE (2) DE10216758A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041230A1 (en) 2008-09-25 2010-04-01 Heidelberger Druckmaschinen Ag Method and device for the lateral alignment of a sheet in a processing machine
DE102014215802A1 (en) 2014-08-08 2016-02-11 Koenig & Bauer Ag Method of aligning sheets to the side edge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357173A1 (en) * 2003-12-06 2005-06-30 Koenig & Bauer Ag Method of aligning sheets to the side edge
DE102004031507A1 (en) * 2004-06-30 2006-02-02 Koenig & Bauer Ag Device for positioning a sheet flow
CN1986219B (en) 2005-12-23 2011-04-20 海德堡印刷机械股份公司 Method for correcting the lateral position of a printing material, device, conveying system and processing machine
DE102006014536B4 (en) 2006-03-29 2018-08-23 Koenig & Bauer Ag Method of aligning sheets to the side edge
DE102006050747A1 (en) * 2006-10-27 2008-04-30 Koenig & Bauer Aktiengesellschaft Method for aligning sheet in sheet processing machine, involves detecting position of sheet with sheet velocity on feed table, where sheet speeding device is transported to downstream cylinder, and speeding device has sheet holding system
DE102014208782A1 (en) 2013-05-13 2014-11-13 Koenig & Bauer Aktiengesellschaft Method of aligning sheets to one side edge

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Publication number Priority date Publication date Assignee Title
DE1159471B (en) * 1959-10-03 1963-12-19 Nebiolo S P A Device for setting different sheet thicknesses in a rotary sheet printing machine for multi-color printing
DD125113A1 (en) * 1976-02-03 1977-04-06
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
DE4415669C2 (en) * 1994-05-04 2001-04-05 Koenig & Bauer Ag Sheet conveyor system
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041230A1 (en) 2008-09-25 2010-04-01 Heidelberger Druckmaschinen Ag Method and device for the lateral alignment of a sheet in a processing machine
US8146915B2 (en) 2008-09-25 2012-04-03 Heidelberger Druckmaschinen Ag Method and apparatus for laterally aligning a sheet in a processing machine and sheet-fed printing machine having the apparatus
USRE45028E1 (en) 2008-09-25 2014-07-22 Heidelberger Druckmaschinen Ag Method and apparatus for laterally aligning a sheet in a processing machine and sheet-fed printing machine having the apparatus
DE102009041230B4 (en) * 2008-09-25 2018-01-04 Heidelberger Druckmaschinen Ag Method and device for the lateral alignment of a sheet in a processing machine
DE102009041230C5 (en) 2008-09-25 2023-07-20 Heidelberger Druckmaschinen Ag Process and device for laterally aligning a sheet in a processing machine
DE102014215802A1 (en) 2014-08-08 2016-02-11 Koenig & Bauer Ag Method of aligning sheets to the side edge
DE102014215802B4 (en) 2014-08-08 2022-11-03 Koenig & Bauer Ag Procedure for aligning sheets according to the page edge

Also Published As

Publication number Publication date
DE50303539D1 (en) 2006-07-06
EP1354833A2 (en) 2003-10-22
EP1354833A3 (en) 2004-06-23
DE10216758A1 (en) 2003-10-30

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