EP1537995A2 - Method for lateral aligning of sheets - Google Patents

Method for lateral aligning of sheets Download PDF

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Publication number
EP1537995A2
EP1537995A2 EP04026401A EP04026401A EP1537995A2 EP 1537995 A2 EP1537995 A2 EP 1537995A2 EP 04026401 A EP04026401 A EP 04026401A EP 04026401 A EP04026401 A EP 04026401A EP 1537995 A2 EP1537995 A2 EP 1537995A2
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
EP04026401A
Other languages
German (de)
French (fr)
Other versions
EP1537995B1 (en
EP1537995A3 (en
Inventor
Volkmar Schumann
Ulrich KÖHLER
Martin Dr.-Ing. Riese
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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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1537995A2 publication Critical patent/EP1537995A2/en
Publication of EP1537995A3 publication Critical patent/EP1537995A3/en
Application granted granted Critical
Publication of EP1537995B1 publication Critical patent/EP1537995B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/222—Stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/23—Coordinates, e.g. three dimensional coordinates

Definitions

  • the invention relates to a method for aligning sheets after the side edge, in where the sheets to be aligned within a scattering area on a feed table promoted, on which the actual position of the side edge determined by means of a measuring device and the respective foremost sheet is detected by a sheet accelerating device and the gripper system is fed to a drum, wherein the gripper system for Realization of the desired position of the side edge, which, objectified by an approximately centered provided in the scattering range side-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.
  • DE 102 16 758 A1 proposes the gripper system To move the drum to align the sheet to the side edge and after passing the sheets to the downstream cylinder the gripper system not due to a starting position (middle position), but after the detection the location of the following arc the gripper system to half the pull path to be realized to spend in the opposite direction. This will result in improper arc deformation avoided by laterally too close Asked gripper serves.
  • the disadvantage of this method is that, due to the machine geometry, the measured value characterizing the lateral position of the following sheet is present only shortly before the next sheet is taken over by the gripper system. This requires high accelerations or drive torques of the gripper system displacing actuators, in particular in high-speed machines, on the other hand, the gripper system remains after the transfer of the aligned sheet to the downstream cylinder to the transfer to the takeover position over a large machine angle.
  • the object of the invention is to provide a generic method for aligning sheets, which can be realized with little effort, even in high-speed machines.
  • the object is achieved by a method according to the features of the claim 1 solved.
  • the distances of the intermeshing Sheet holding system to be designed so that without height adjustment of sheet holding systems a bowing can be realized, which is also problematic substrates Ensures trouble-free sheet travel, where it by the division of the axial adjustment movement of the gripper system in three partial movements is possible, the accelerations and to reduce moments of the actuator displacing the gripper system and so on
  • the method can also be applied to high-speed machines.
  • 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 and adjusted to the formats reaching for processing.
  • 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 such that the deformations of the material to be processed during the transfer / transfer are so small that the productivity of the printing press is not adversely affected.
  • the gripper fingers 10 / gripper 14 and gripper 14 / sheet gripper 12 are arranged centrally to each other. FIG.
  • 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 at the sheet transfer centered on the gripper fingers 10 of the vibratory gripper system 9 and can be moved from their center position X at most by a pulling Z / 2 toward the side I or II.
  • the gripper system 6 is moved in the direction of the side II.
  • the width a of the gripper fingers 10, the gripper 14 and the sheet gripper 12 is reduced by the maximum pulling Z / 2 and so the Distance b increased by Z / 2.
  • the gripper fingers 10, grippers 14 and sheet grippers 12 are performed in a width a - Z / 4.
  • the distance b is increased by Z / 4, so that a system distance c is maintained at a range c + Z / 2 ⁇
  • a maximum Ziehweg Z / 2 in the direction of page I or page II as follows method.
  • the grippers 14 are guided in a central position (center position X) to the oscillating gripper system 9. From this center position X, the gripper system 6 is moved to a transfer position.
  • This acceptance position results from the fact that 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 a determined by the gripper system 6 pulling path is determined by amount and direction. It is not necessary that the exact amount of the pulling path already exists.
  • the transfer position when a first preliminary measurement is determined by the measuring device 21 / evaluation unit, for example, when the sheet material is applied to the front mark 2, but the swing gripper system 9 is not yet closed.
  • the sheet 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 one of the measuring device 21 / evaluation unit determined exact amount of Ziehweges based on a second measurement, for example the swing gripper system 9 has detected the sheet material is generated.
  • the target position is realized.
  • 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.
  • a partial drawing path e 1 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 gripper system 6 of this is controlled in the transfer position which is off-center e 1/2. Subsequently, the sheet 16 of
  • 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-drawing line 23, detected.
  • the gripper system 6 initiated by the evaluation unit downstream evaluation unit, controlled from the center position X in the transfer position for the subsequent sheet 17.
  • the takeover position is in turn eccentrically / 2 spaced around the partial drawing distance e 2 from the side pull line 23rd
  • this transfer position of the follower sheet 17 is 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.
  • the grippers 14 of the gripper system 6 are guided into their middle position X.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

The straightening process is applied to the side edges of sheets on the resting table (1). The actual position is measured by measuring device (21). The sheet is taken by a sheet at the separating device (3) and a grip system (6) to a drum (5). The intended position is achieved on the basis of a partial traction path evaluated in the measuring device.

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 where the sheets to be aligned within a scattering area on a feed table promoted, on which the actual position of the side edge determined by means of a measuring device and the respective foremost sheet is detected by a sheet accelerating device and the gripper system is fed to a drum, wherein the gripper system for Realization of the desired position of the side edge, which, objectified by an approximately centered provided in the scattering range side-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.

Um diese Nachteile zu beseitigen, wird in der DE 102 16 758 A1 vorgeschlagen, das Greifersystem der Trommel zum Ausrichten der Bogen nach der Seitenkante zu verschieben und nach dem Übergeben der Bogen an den nachgeordneten Zylinder das Greifersystem nicht in eine Ausgangsposition (Mittelstellung) zurückzuführen, sondern nach dem Erfassen der Lage des folgenden Bogens das Greifersystem um den halben zu realisierenden Ziehweg in die entgegengesetzte Richtung zu verbringen. Dadurch wird eine unzulässige Bogenverformung durch seitlich zu nahe gestellte Greiferaufschläge vermieden.In order to eliminate these disadvantages, DE 102 16 758 A1 proposes the gripper system To move the drum to align the sheet to the side edge and after passing the sheets to the downstream cylinder the gripper system not due to a starting position (middle position), but after the detection the location of the following arc the gripper system to half the pull path to be realized to spend in the opposite direction. This will result in improper arc deformation avoided by laterally too close Asked gripper serves.

Der Nachteil dieses Verfahrens liegt darin, dass, bedingt durch die Maschinengeometrie, der die Seitenlage des folgenden Bogens charakterisierende Messwert erst kurz vor Übernahme des folgenden Bogens durch das Greifersystem vorliegt. Das bedingt insbesondere bei schnelllaufenden Maschinen hohe Beschleunigungen bzw. Antriebsmomente der das Greifersystem verschiebenden Stellantriebe, wobei andererseits das Greifersystem nach der Übergabe der ausgerichteten Bogen an den nachgeordneten Zylinder bis zum Verbringen in die Übernahmeposition über einen großen Maschinenwinkel stehen bleibt.
Aufgabe der Erfindung ist es, ein gattungsgemäßes Verfahren zum Ausrichten von Bogen zu schaffen, das mit geringem Aufwand auch bei schnelllaufenden Maschinen zu realisieren ist.The disadvantage of this method is that, due to the machine geometry, the measured value characterizing the lateral position of the following sheet is present only shortly before the next sheet is taken over by the gripper system. This requires high accelerations or drive torques of the gripper system displacing actuators, in particular in high-speed machines, on the other hand, the gripper system remains after the transfer of the aligned sheet to the downstream cylinder to the transfer to the takeover position over a large machine angle.
The object of the invention is to provide a generic method for aligning sheets, which can be realized with little effort, even in high-speed machines.

Erfindungsgemäß wird die Aufgabe durch ein Verfahren nach den Merkmalen des Anspruchs 1 gelöst.According to the invention the object is achieved by a method according to the features of the claim 1 solved.

Durch die erfindungsgemäße Lösung ist es möglich, die Abstände der ineinandergreifenden Bogenhaltesystem so zu gestalten, dass ohne Höhenverstellung von Bogenhaltesystemen eine Bogenführung realisiert werden kann, die auch bei problembehafteten Bedruckstoffen einen störungsfreien Bogenlauf sicherstellt, wobei es durch die Aufteilung der axialen Stellbewegung des Greifersystems in drei Teilbewegungen möglich ist, die Beschleunigungen und Momente des das Greifersystem verschiebenden Stellantriebs zu reduzieren und so das Verfahren auch bei schnelllaufenden Maschinen angewendet werden kann.By the solution according to the invention it is possible, the distances of the intermeshing Sheet holding system to be designed so that without height adjustment of sheet holding systems a bowing can be realized, which is also problematic substrates Ensures trouble-free sheet travel, where it by the division of the axial adjustment movement of the gripper system in three partial movements is possible, the accelerations and to reduce moments of the actuator displacing the gripper system and so on The method can also be applied to high-speed machines.

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 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 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.
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. 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.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 and adjusted to the formats reaching for processing. 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 such that the deformations of the material to be processed during the transfer / transfer 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 at the sheet transfer centered on the gripper fingers 10 of the vibratory gripper system 9 and can be moved from their center position X at most by a pulling Z / 2 toward the side I or II. In the figure 3b is shown that the gripper system 6 is moved in the direction of the side II. After the realization of a maximum pulling stroke Z / 2, the curved 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). In order to ensure a system distance c in the realization of a maximum pulling distance Z / 2 in the direction of the 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 Z / 2 and so the Distance b increased by Z / 2.

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.Although this ensures that the system distance c between the gripper system 6 and the gripping device 8 is achieved when implementing a Z / 2 Ziehweges, however, forms between the intermeshing grippers 14 and sheet grippers 12, a range c + Z, in which a sheet 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.

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 vergrößert, 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.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 performed in a width a - Z / 4. Thus, the distance b is increased by Z / 4, so that a system distance c is maintained at a range c + Z / 2 · However, in order to realize a maximum Ziehweg Z / 2 in the direction of page I or page II, as follows method.

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.
Unmittelbar nach der Übergabe des bogenförmigen Bedruckstoffs an die Greifeinrichtung 8 des Zylinders 7 werden die Greifer 14 in eine Position mittig (Mittenposition X) zum Schwinggreifersystem 9 geführt. Aus dieser Mittenposition X wird das Greifersystem 6 in eine Übernahmeposition verschoben. Diese Übernahmeposition ergibt sich dadurch, dass durch die Messeinrichtung 21 im Anlegtisch 1 und die 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. Dabei ist es nicht erforderlich, dass der exakte Betrag des Ziehwegs bereits vorliegt. Vielmehr ist es zur Realisierung der Übernahmeposition ausreichend, wenn durch die Messeinrichtung 21/Auswerteinheit ein erster vorläufiger Messwert ermittelt wird, z.B. wenn das Bogenmaterial an den Vordermarken 2 anliegt, das Schwinggreifersystem 9 aber noch nicht geschlossen ist. In dieser Übernahmeposition wird das Bogenmaterial durch das Greifersystem 6 vom Schwinggreifersystem 9 übernommen und nachfolgend während des Transports zur Greifeinrichtung 8 das Greifersystem 6 um einen von der Messeinrichtung 21/Auswerteinheit ermittelten exakten Betrag des Ziehweges verschoben, der auf der Grundlage eines zweiten Messwertes, z.B. wenn das Schwinggreifersystem 9 das Bogenmaterial erfasst hat, generiert wird. Damit wird 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.
Zur Übernahme des Bogens 16 durch das Greifersystem 6 wird dieses in die Übernahmeposition gesteuert, die außermittig bei e 1 / 2 liegt. Nachfolgend wird der Bogen 16 vomIf an arcuate printing material is supplied, 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 become half of the pulling path Z to be realized / 2, so moved by Z / 4 in the direction of page I. Thereafter, the sheet-shaped substrate is clamped by the grippers 14 of the gripper system 6 and subsequently moves the gripper system 6 by Z / 2 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.
Immediately after the transfer of the sheet-shaped printing material to the gripping device 8 of the cylinder 7, the grippers 14 are guided in a central position (center position X) to the oscillating gripper system 9. From this center position X, the gripper system 6 is moved to a transfer position. This acceptance position results from the fact that 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 a determined by the gripper system 6 pulling path is determined by amount and direction. It is not necessary that the exact amount of the pulling path already exists. Rather, it is sufficient for the realization of the transfer position when a first preliminary measurement is determined by the measuring device 21 / evaluation unit, for example, when the sheet material is applied to the front mark 2, but the swing gripper system 9 is not yet closed. In this takeover position, the sheet 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 one of the measuring device 21 / evaluation unit determined exact amount of Ziehweges based on a second measurement, for example the swing gripper system 9 has detected the sheet material is generated. Thus, the target position is realized.
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.
For taking over the sheet 16 by the gripper system 6 of this is controlled in the transfer position which is off-center e 1/2. Subsequently, the sheet 16 of

Greifersystem 6 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. Danach werden das Greifersystem 6 und damit die Greifer 14 in ihre Mittenposition X, also mittig bezüglich der Greiferfinger 10 des Schwinggreifersystems 9 verschoben. Gripper system 6 taken over and this in the axial direction and in the direction of the side-line 23 and the side I shifted by 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. Thereafter, the gripper system 6 and thus the gripper 14 in its center position X, ie moved centrally with respect to the gripper fingers 10 of the swing gripper system 9.

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. Ausgehend von diesem Ziehweg e2 sowie der ermittelten Ziehrichtung wird das Greifersystem 6, initiiert durch die der Messeinrichtung nachgeordneten Auswerteinheit, aus der Mittenposition X in die Übernahmeposition für den Folgebogen 17 gesteuert.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-drawing line 23, detected. Starting from this pulling path e 2 and the determined pulling direction, the gripper system 6, initiated by the evaluation unit downstream evaluation unit, controlled from the center position X in the transfer position for the subsequent sheet 17.

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. Nach der Übergabe des Folgebogens 17 an die Greifeinrichtung 8 des Zylinders 7 werden die Greifer 14 des Greifersystem 6 in ihre Mittenposition X geführt. The takeover position is in turn eccentrically / 2 spaced around the partial drawing distance e 2 from the side pull line 23rd In this transfer position of the follower sheet 17 is 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. After the transfer of the follower sheet 17 to the gripping device 8 of the cylinder 7, the grippers 14 of the gripper system 6 are guided into their middle position X.

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)

Verfahren zum Ausrichten von Bogen nach der Seitenkante, bei dem die auszurichtenden
Bogen innerhalb eines Streubereichs (22) auf einen Anlegtisch (1) gefördert werden und die Ist-Lage der Seitenkante mittels einer Messeinrichtung (21) festgestellt sowie von einer Bogenbeschleunigungsvorrichtung (3) erfasst und einem Greifersystem (6) einer Trommel (5) zugeführt wird, das Greifersystem (6) ist zur Realisierung einer Soll-Lage, die vergegenständlicht ist durch eine etwa mittig im Streubereich (22) vorgesehene Seitenziehlinie (23), in axialer Richtung verschiebbar ausgebildet, 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) aus einer Mittenposition (X), in der das Greifersystem (6) mittig zu einem Schwinggreifersystem (9) der Bogenbeschleunigungsvorrichtung (3) steht, in eine Übergabeposition gesteuert, die um den Ziehweg ( e 1 / 2) versetzt zur Mittenposition (X) verläuft, 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, danach wird das Greifersystem (6) in die Mittenposition (X) zurückgeführt, gleichzeitig wird durch die Messeinrichtung (21)/Auswerteinheit ein partieller Ziehweg (e2) eines Folgebogens (17) ermittelt sowie der partielle Ziehweg ( e 2 / 2) gebildet zum Verbringen des Greifersystems (6) in die Übernahmeposition für den Folgebogen (17). Method of aligning sheets to the side edge where the sheets to be aligned
Bow within a spreading area (22) on a feed table (1) are promoted and the actual position of the side edge is detected by means of a measuring device (21) and detected by a sheet accelerating device (3) and fed to a gripper system (6) of a drum (5), the gripper system (6) is designed to be displaceable in the axial direction in order to realize a desired position, which is objectified by a side draw line (23) provided approximately centrally in the spreading area (22), by the measuring device (21) / evaluation unit is a partial pulling path (e 1 ) by which the foremost sheet (16) for realizing the target position in the direction of the side-pull line (23) must be moved, detected in the measuring device (21) / evaluation unit is the partial drawing path (e 1/2) is formed, by the measuring device (21), the gripper system (6) of the drum (5) from a center position (X), in which the gripper system (6) is centrally to a swing gripper system (9) of the sheet accelerating device (3), controlled in a transfer position, around said pulling path (e 1/2) offset to the center position (X), the foremost sheet (16) is taken over by the gripper system (6) from the sheet accelerating device (3) 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 subsequently the foremost sheet (16) is transferred to the gripping device (8), Thereafter, the gripper system (6) is returned to the center position (X), at the same time by the measuring means (21) / evaluation unit a partial drawing distance (e 2) is determined a subsequent sheet (17) and the partial drawing distance (e 2/2) is formed for displacing the gripper system (6) in the takeover position for the following sheet (17) , 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) transversely to a sheet conveying direction (18) in the feed table (1) can be moved to the format adaptation.
EP04026401A 2003-12-06 2004-11-06 Method for lateral aligning of sheets Active EP1537995B1 (en)

Applications Claiming Priority (2)

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DE10357173 2003-12-06
DE10357173A DE10357173A1 (en) 2003-12-06 2003-12-06 Method of aligning sheets to the side edge

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EP1537995A2 true EP1537995A2 (en) 2005-06-08
EP1537995A3 EP1537995A3 (en) 2008-04-30
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014536B4 (en) 2006-03-29 2018-08-23 Koenig & Bauer Ag Method of aligning sheets to the side edge
DE102006014535A1 (en) * 2006-03-29 2007-10-04 Koenig & Bauer Aktiengesellschaft Paper sheet alignment method involves detecting offset from specified position by two sequential measurements, where catching position of gripper system is determined as momentary middle position from the offset of one sheet
DE102007042373A1 (en) * 2007-09-06 2009-03-12 Koenig & Bauer Aktiengesellschaft Sheet guiding device for use in sheet fed press, has sheet retaining unit to which free ends of drawn sheets are transferable, where sheet retaining unit is guided at distance to feed table and band table
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

Citations (2)

* Cited by examiner, † Cited by third party
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
DE10216758A1 (en) * 2002-04-16 2003-10-30 Koenig & Bauer Ag Procedure for aligning sheets by the side edge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (2)

* Cited by examiner, † Cited by third party
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
DE10216758A1 (en) * 2002-04-16 2003-10-30 Koenig & Bauer Ag Procedure for aligning sheets by the side edge

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