EP1354833A2 - Method for laterally aligning sheets - Google Patents

Method for laterally aligning sheets Download PDF

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Publication number
EP1354833A2
EP1354833A2 EP03006271A EP03006271A EP1354833A2 EP 1354833 A2 EP1354833 A2 EP 1354833A2 EP 03006271 A EP03006271 A EP 03006271A EP 03006271 A EP03006271 A EP 03006271A EP 1354833 A2 EP1354833 A2 EP 1354833A2
Authority
EP
European Patent Office
Prior art keywords
sheet
gripper system
gripper
measuring device
evaluation unit
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.)
Granted
Application number
EP03006271A
Other languages
German (de)
French (fr)
Other versions
EP1354833A3 (en
EP1354833B1 (en
Inventor
Volkmar Schumann
Carsten Reinsch
Steffen Tenzer
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
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Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1354833A2 publication Critical patent/EP1354833A2/en
Publication of EP1354833A3 publication Critical patent/EP1354833A3/en
Application granted granted Critical
Publication of EP1354833B1 publication Critical patent/EP1354833B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators

Definitions

  • the invention relates to a method for aligning sheets according to the side edge, at which the sheets to be aligned are conveyed within a spreading area on a feed table on which the actual position of the side edge is determined by means of a measuring device and the foremost arc is detected by an arc acceleration device and the gripper system is fed to a drum, the gripper system being implemented the target position of the side edge, which, objectified by an approximately center in the spreading area provided side drawing line, can be moved in the axial direction.
  • a sheet transported from the feed table to the gripper system of the drum by the sheet acceleration device is brought into the desired position by axially shifting the gripper system with respect to the side edge and then transferred to the gripping device of a downstream cylinder.
  • the gripper system and the gripping device come too close together when transferring sheets, so that there is an impermissible deformation of the sheet when processing thick substrates.
  • Another way of eliminating 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 grippers small.
  • this requires poor sheet guidance, which leads to increased waste and interruptions in operations.
  • 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 the claim 1 solved.
  • it is possible to define the distances between the interlocking To design bow support systems so that without height adjustment of bow support systems a sheet guide can be realized, even with problematic substrates ensures trouble-free sheet travel.
  • FIG. 1 shows a sheet feeder system, consisting of a feed table 1 with front marks 2 in a position on feed table 1, a sheet acceleration device 3, which is designed as a vibrating 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.
  • the vibrating system 4 has a vibrating gripper system 9, which consists of gripper fingers 10 and a gripper bar 11, the vibrating gripper system 9 being assigned to the vibrating system 4 in a fixed manner on the frame.
  • the gripper system 6 of the drum 5 is slidably provided in the drum 5 in the axial direction and consists of grippers 14 which cooperate with gripper cuffs 15.
  • the feed table 1 is shown with a sheet 16 and a subsequent sheet 17. From the feed table 1, only the half located in the sheet conveying direction 18 on the left side - a side I - is shown. There is a side II on the opposite side.
  • the sheets 16, 17 are transported in the sheet conveying direction 18 onto the feed table 1.
  • a measuring device 21 is slidably and lockably provided in a recess 19 of the feed table 1, which extends transversely to the sheet conveying direction 18 over at least one format setting area 20. The measuring device 21 can be moved within the format range 20 and can thus be adjusted 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 being processed can run in, so that their actual position can still be reliably detected and brought into a target position.
  • the target position is identical to the position of a side drawing line 23, which is provided approximately centrally in the spreading area 22.
  • FIG. 3a shows the vibrating 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 alignment according to the side edge.
  • the gripper fingers 10, grippers 14 and sheet grippers 12 have a width a, while a distance b is provided between the gripper fingers 10, the grippers 14 or the sheet grippers 12.
  • a system distance c is provided between two interlocking sheet holding systems 9, 6, 8. The system distance c is selected such that the deformations of the material to be processed that occur during the transfer / takeover are so small that the productivity of the printing press is not adversely affected.
  • the gripper fingers 10 / gripper 14 or gripper 14 / sheet gripper 12 are arranged centrally to one another.
  • 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 processing material to be processed according to a side edge.
  • the grippers 14 of the gripper system 6 are arranged in the middle of the gripper fingers 10 of the oscillating gripper system 9 when the sheet is picked up and can subsequently be displaced from their central position X by a maximum of a pulling path Z / 2 in the direction of the side I or side II.
  • FIG. 3b shows that the gripper system 6 is shifted in the direction of the side II. After a maximum pulling path Z / 2 has been realized, 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 (center position X).
  • the gripper fingers 10, grippers 14 and sheet grippers 12 are designed with a width a - Z / 4.
  • the distance b is thus Z / 4, so that a system distance c is maintained at a range c + Z / 2.
  • the procedure is as follows , If an arc-shaped printing material is fed, which has to be moved away from the side I by Z / 2 in order to reach the desired position and thus the side drawing line 23 with respect to the side edge, the grippers 14 of the gripper system 6 are reduced by half of the drawing path Z to be realized / 2, i.e. moved by Z / 4 in the direction of side I.
  • the sheet-like printing material is clamped by the grippers 14 of the gripper system 6 and subsequently the gripper system 6 is moved away from the side I by Z / 2 and the desired position is thus achieved.
  • the sheet-like printing material is then 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 position in the middle (center position X) of the oscillating gripper system 9, but rather is moved to a position deviating therefrom for taking over the subsequent sheet-shaped printing material.
  • This takeover position results from the fact that the measuring device 21 in the feed table 1 and the evaluation unit determine from the actual position and the target position for the subsequent sheet-shaped printing material a pulling path to be realized by the gripper system 6 according to the amount and direction.
  • the printing material is taken over by the vibrating gripper system 9 by the gripper system 6 and subsequently the gripper system 6 is shifted by the amount determined by the measuring device 21 / evaluation unit during the transport to the gripping device 8 and thus the desired position is realized.
  • the procedure is as follows.
  • the sheets 16, 17 are conveyed onto the feed table 1 in such a way that the side edges enter within the spreading area 22, which is identical to the maximum drawing path Z.
  • the target position is objectified by the side drawing line 23.
  • a partial pulling path e 1 In order for the sheet 16 to get from the actual position into the desired position, a partial pulling path e 1 must be realized, the pulling direction being directed to the side pull line 23.
  • the follow-up sheet 17 must cover a partial pulling path e 2 in order to achieve the desired position, the pulling direction likewise being directed to the side pulling line 23.
  • the sheet 16 is controlled by the gripper system 6 of this into the transfer position for transferring the eccentrically / e is 1 second Subsequently, the sheet 16 is taken over by the gripper system and this is shifted in the axial direction and in the direction of the side drawing line 23 and the side I by the partial drawing path e 1 , so that the sheet 16 is brought into the desired position. The sheet 16 is then transferred to the gripping device 8. In parallel to this, the actual position of the following sheet 17 is detected by the measuring device 21 and a pulling path e 2 and the pulling direction, which is directed away from the side I and is directed towards the side pulling line 23, are detected.
  • the gripper system 6 initiated by the evaluation unit arranged downstream of the measuring device 21, controls the takeover position for the following sheet 17.
  • the take-over position is again off-center, at a distance from the side drawing line 23 by the partial drawing path e 2/2 .
  • the following sheet 17 is gripped by the gripper system 6 and the gripping system 6 is displaced by the partial pulling path e 2 , initiated by the measuring device 21, in the direction of the side pulling line 23, thus realizing the desired position of the following sheet 17.

Abstract

The procedure for the alignment of sheets of paper by the side edge entails feeding the sheets inside a spreading area to a laying table (1) upon which the first position of the side edge is established by a measurement device. A gripper system (6) before gripping the sheet to be aligned is brought from a half drawing distance into a transfer position against the drawing direction, and after gripping the sheet is moved by the whole drawing distance in the drawing direction.

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 according to the side edge, at which the sheets to be aligned are conveyed within a spreading area on a feed table on which the actual position of the side edge is determined by means of a measuring device and the foremost arc is detected by an arc acceleration device and the gripper system is fed to a drum, the gripper system being implemented the target position of the side edge, which, objectified by an approximately center in the spreading area provided side drawing 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 according to the side edge on a drum by axially displacing the gripper system. The sheets separated by a sheet feeder are transported to the feed table in such a way that the side edges run in within a spreading area. The actual position of the side edge is recorded by a measuring device and compared with a target position. The target position is identical to a so-called side drawing line, which is provided approximately in the center of the spreading area. If the actual position deviates from the desired position, the measuring device generates an actuating signal and feeds it to an actuating device which shifts the gripper system in the axial direction of the drum downstream of a sheet acceleration device. A sheet transported from the feed table to the gripper system of the drum by the sheet acceleration device is brought into the desired position by axially shifting the gripper system with respect to the side edge and then transferred to the gripping device of a downstream cylinder.
There is a risk that the gripper system and the gripping device come too close together when transferring sheets, so that there is an impermissible deformation of the sheet when processing thick substrates. In order to eliminate these disadvantages, it is known to design the gripper cuffs of the gripper system of the drum to be height-adjustable, which requires a great deal of effort. Another way of eliminating 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 grippers small. However, this requires poor sheet guidance, which leads to increased waste and interruptions in operations.

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 the claim 1 solved. With the solution according to the invention, it is possible to define the distances between the interlocking To design bow support systems so that without height adjustment of bow support systems a sheet guide can be realized, even with problematic substrates ensures trouble-free sheet travel.

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
The invention is explained in more detail using an exemplary embodiment. Show in the accompanying drawings
Fig. 1
a bow system in the side view
Fig. 2
a schematic representation of a feed table in plan view
Fig. 3
a comparison of the diagrams of different interlocking bow support 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 feeder system, consisting of a feed table 1 with front marks 2 in a position on feed table 1, a sheet acceleration device 3, which is designed as a vibrating 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. The vibrating system 4 has a vibrating gripper system 9, which consists of gripper fingers 10 and a gripper bar 11, the vibrating gripper system 9 being assigned to the vibrating system 4 in a fixed manner on the frame. The gripper system 6 of the drum 5 is slidably provided in the drum 5 in the axial direction and consists of grippers 14 which cooperate with gripper cuffs 15. The gripping device 8 assigned to the cylinder 7, which consists of sheet grippers 12 and gripper pads 13, is mounted in the cylinder 7 in a manner fixed to the frame.
In Figure 2, the feed table 1 is shown with a sheet 16 and a subsequent sheet 17. From the feed table 1, only the half located in the sheet conveying direction 18 on the left side - a side I - is shown. There is a side II on the opposite side. The sheets 16, 17 are transported in the sheet conveying direction 18 onto the feed table 1. A measuring device 21 is slidably and lockably provided in a recess 19 of the feed table 1, which extends transversely to the sheet conveying direction 18 over at least one format setting area 20. The measuring device 21 can be moved within the format range 20 and can thus be adjusted 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 being processed can run in, so that their actual position can still be reliably detected and brought into a target position. The target position is identical to the position of a side drawing line 23, which is provided approximately centrally in the spreading area 22.
In Figure 3, different schemes of interlocking sheet holding systems are compared. FIG. 3a shows the vibrating 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 alignment according to the side edge. The gripper fingers 10, grippers 14 and sheet grippers 12 have a width a, while a distance b is provided between the gripper fingers 10, the grippers 14 or the sheet grippers 12. A system distance c is provided between two interlocking sheet holding systems 9, 6, 8. The system distance c is selected such that the deformations of the material to be processed that occur during the transfer / takeover are so small that the productivity of the printing press is not adversely affected.
When the sheets are picked up / transferred, the gripper fingers 10 / gripper 14 or gripper 14 / sheet gripper 12 are arranged centrally to one another.

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 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 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 processing material to be processed according to a side edge. The grippers 14 of the gripper system 6 are arranged in the middle of the gripper fingers 10 of the oscillating gripper system 9 when the sheet is picked up and can subsequently be displaced from their central position X by a maximum of a pulling path Z / 2 in the direction of the side I or side II. FIG. 3b shows that the gripper system 6 is shifted in the direction of the side II. After a maximum pulling path Z / 2 has been realized, 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 (center position X).

Um bei der Realisierung eines maximalen Ziehweges Z / 2 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 verringert und so der Abstand b um Z / 2 vergrößert.
Damit wird zwar erreicht, dass der Systemabstand c zwischen dem Greifersystem 6 und der Greifeinrichtung 8 bei Realisierung eines Ziehweges Z / 2 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 a - Z / 4 ausgeführt. Damit wird der Abstand b um Z / 4, so dass ein Systemabstand c eingehalten wird bei einem Bereich c + Z / 2. Um aber einen maximalen Ziehweg Z / 2 in Richtung der Seite I oder Seite II realisieren zu können, wird wie folgt verfahren.
Wird ein bogenförmiger Bedruckstoff zugeführt, der um Z / 2 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, also um Z / 4 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 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 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 von der Seitenziehlinie 23 beabstandet. In dieser Übernahmeposition wird der 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. In order to be able to ensure a system distance c when realizing a maximum pulling path Z / 2 in the direction of side I or II, the width a of the gripper fingers 10, the gripper 14 and the sheet gripper 12 is reduced by the maximum pulling path Z / 2 and thus the Distance b increased by Z / 2.
Although this ensures that the system distance c between the gripper system 6 and the gripping device 8 is maintained when a pulling path Z / 2 is realized, an area c + Z is formed between the interlocking grippers 14 and sheet grippers 12 in which a sheet guide is missing. It is therefore possible that a corner of the sheet is not guided within this area c + Z, so that sheet travel is impaired and thus malfunctions occur.
This disadvantage is eliminated in an embodiment according to FIG. 3c. In this embodiment, the gripper fingers 10, grippers 14 and sheet grippers 12 are designed with a width a - Z / 4. The distance b is thus Z / 4, so that a system distance c is maintained at a range c + Z / 2. However, in order to be able to realize a maximum pulling path Z / 2 in the direction of the side I or side II, the procedure is as follows ,
If an arc-shaped printing material is fed, which has to be moved away from the side I by Z / 2 in order to reach the desired position and thus the side drawing line 23 with respect to the side edge, the grippers 14 of the gripper system 6 are reduced by half of the drawing path Z to be realized / 2, i.e. moved by Z / 4 in the direction of side I. Then the sheet-like printing material is clamped by the grippers 14 of the gripper system 6 and subsequently the gripper system 6 is moved away from the side I by Z / 2 and the desired position is thus achieved. The sheet-like printing material is then 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 position in the middle (center position X) of the oscillating gripper system 9, but rather is moved to a position deviating therefrom for taking over the subsequent sheet-shaped printing material. This takeover position results from the fact that the measuring device 21 in the feed table 1 and the evaluation unit determine from the actual position and the target position for the subsequent sheet-shaped printing material a pulling path to be realized by the gripper system 6 according to the amount and direction. In this take-over position, the printing material is taken over by the vibrating gripper system 9 by the gripper system 6 and subsequently the gripper system 6 is shifted by the amount determined by the measuring device 21 / evaluation unit during the transport to the gripping device 8 and thus the desired position is realized.
In the case of a sheet 16 and a subsequent sheet 17, as shown in the exemplary embodiment in FIG. 2, the procedure is as follows. The sheets 16, 17 are conveyed onto the feed table 1 in such a way that the side edges enter within the spreading area 22, which is identical to the maximum drawing path Z. The target position is objectified by the side drawing line 23. In order for the sheet 16 to get from the actual position into the desired position, a partial pulling path e 1 must be realized, the pulling direction being directed to the side pull line 23. The follow-up sheet 17 must cover a partial pulling path e 2 in order to achieve the desired position, the pulling direction likewise being directed to the side pulling line 23.
According to the inventive solution, the sheet 16 is controlled by the gripper system 6 of this into the transfer position for transferring the eccentrically / e is 1 second Subsequently, the sheet 16 is taken over by the gripper system and this is shifted in the axial direction and in the direction of the side drawing line 23 and the side I by the partial drawing path e 1 , so that the sheet 16 is brought into the desired position. The sheet 16 is then transferred to the gripping device 8. In parallel to this, the actual position of the following sheet 17 is detected by the measuring device 21 and a pulling path e 2 and the pulling direction, which is directed away from the side I and is directed towards the side pulling line 23, are detected. After the sheet 16 has been transferred to the gripping device 8, the gripper system 6, initiated by the evaluation unit arranged downstream of the measuring device 21, controls the takeover position for the following sheet 17. The take-over position is again off-center, at a distance from the side drawing line 23 by the partial drawing path e 2/2 . In this take-over position, the following sheet 17 is gripped by the gripper system 6 and the gripping system 6 is displaced by the partial pulling path e 2 , initiated by the measuring device 21, in the direction of the side pulling line 23, thus realizing the desired position of the following sheet 17.

Aufstellung der verwendeten BezugszeichenList of the reference numerals used

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 drag
e1 e 1
partieller Ziehwegpartial pull path
e2 e 2
partieller Ziehwegpartial pull path
XX
Mittenpositioncenter position

Claims (2)

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, die, vergegenständlicht ist durch eine etwa mittig im Streubereich vorgesehene Seitenziehlinie, in axialer Richtung verschoben werden kann, gekennzeichnet durch folgende Schritte: durch die Messeinrichtung (21)/Auswerteinheit wird ein partieller Ziehweg (e1), um den der vorderste Bogen (16) zur Realisierung der Soll-Lage in Richtung der Seitenziehlinie (23) verschoben werden muss, erfasst, in der Messeinrichtung (21)/Auswerteinheit wird der partielle Ziehweg ( e 1 / 2 ) gebildet, durch die Messeinrichtung (21) wird das Greifersystem (6) der Trommel (5) in eine Übernahmeposition gesteuert, die um den Ziehweg ( e 2 / 2) versetzt ist zur Mittenposition (X) des Greifersystems (6), der vorderste Bogen (16) wird durch das Greifersystem (6) von der Bogenbeschleunigungsvorrichtung (3) übernommen und zu einer Greifeinrichtung (8) eines Zylinders (7) transportiert, dabei wird das Greifersystem (6), initiiert durch die Messeinrichtung (21)/Auswerteinheit um den Ziehweg (e1) in Richtung der Seitenziehlinie (23) verschoben und nachfolgend der vorderste Bogen (16) an die Greifeinrichtung (8) übergeben, gleichzeitig wird durch die Messeinrichtung (21)/Auswerteinheit ein partieller Ziehweg (e2) eines Folgebogens (17) ermittelt sowie der partielle Ziehweg ( e 2 / 2) gebildet und das Greifersystem (6) in eine Übernahmeposition gesteuert, die um den Ziehweg ( e 2 / 2) versetzt zur Mittenposition (X) ist. Method for aligning sheets according to the side edge, in which the sheets to be aligned are conveyed within a spreading area on a feed table, on which the actual position of the side edge is determined by means of a measuring device and the foremost sheet is detected by a sheet acceleration device and fed to the gripper system of a drum The gripper system for realizing the target position, which, objectified, is displaced in the axial direction by an approximately side pull line provided approximately in the center of the spreading area, characterized by the following steps: by the measuring device (21) / evaluation unit is a partial drawing path (e 1) by which the foremost sheet (16) for realization of the target position in the direction of the side pull line (23) to be moved must be detected, in the measuring device (21) / evaluation unit is the partial drawing path (e 1/2) is formed, by the measuring means (21), the gripper system (6) is controlled in the drum (5) into a transfer position which is offset by the drawing distance (e 2/2) to the center position (X) of the gripper system (6), the foremost sheet (16) is taken over by the sheet acceleration device (3) by the gripper system (6) and transported to a gripping device (8) of a cylinder (7), the gripper system (6), initiated by the measuring device (21) / evaluation unit, is displaced by the drawing path (e 1 ) in the direction of the side drawing line (23) and the foremost sheet (16) is subsequently transferred to the gripping device (8), at the same time by the measuring means (21) / evaluation unit a partial drawing distance (e 2) is determined a subsequent sheet (17) and formed, the partial drawing distance (e 2/2) and controlled by the gripper system (6) into a transfer position to the drawing stroke ( e 2/2 ) is offset to the center position (X). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Messeinrichtung (21) quer zu einer Bogenförderrichtung (18) im Anlegtisch (1) zur Formatanpassung verschoben werden kann.A method according to claim 1, characterized in that the measuring device (21) can be moved transversely to a sheet conveying direction (18) in the feed table (1) for format adjustment.
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
DE10216758A DE10216758A1 (en) 2002-04-16 2002-04-16 Procedure for aligning sheets by the side edge
DE10216758 2002-04-16

Publications (3)

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

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DE (2) DE10216758A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031507A1 (en) * 2004-06-30 2006-02-02 Koenig & Bauer Ag Device for positioning a sheet flow
CN101683780A (en) * 2008-09-25 2010-03-31 海德堡印刷机械股份公司 Method and apparatus for laterally aligning a sheet in a processing machine
US7722035B2 (en) 2005-12-23 2010-05-25 Heidelberger Druckmaschinen Ag Method and apparatus for correcting the lateral position of a printing material, printing material conveying system and machine processing printing material
DE102014215802A1 (en) * 2014-08-08 2016-02-11 Koenig & Bauer Ag Method of aligning sheets to the side edge

Families Citing this family (4)

* 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
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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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

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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
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

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031507A1 (en) * 2004-06-30 2006-02-02 Koenig & Bauer Ag Device for positioning a sheet flow
US7722035B2 (en) 2005-12-23 2010-05-25 Heidelberger Druckmaschinen Ag Method and apparatus for correcting the lateral position of a printing material, printing material conveying system and machine processing printing material
CN101683780A (en) * 2008-09-25 2010-03-31 海德堡印刷机械股份公司 Method and apparatus for laterally aligning a sheet in a processing machine
CN101683780B (en) * 2008-09-25 2013-08-07 海德堡印刷机械股份公司 Method and apparatus 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

Also Published As

Publication number Publication date
EP1354833A3 (en) 2004-06-23
EP1354833B1 (en) 2006-05-31
DE10216758A1 (en) 2003-10-30
DE50303539D1 (en) 2006-07-06

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