EP1340701B1 - Apparatus for laterally aligning sheets - Google Patents

Apparatus for laterally aligning sheets Download PDF

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Publication number
EP1340701B1
EP1340701B1 EP03002782A EP03002782A EP1340701B1 EP 1340701 B1 EP1340701 B1 EP 1340701B1 EP 03002782 A EP03002782 A EP 03002782A EP 03002782 A EP03002782 A EP 03002782A EP 1340701 B1 EP1340701 B1 EP 1340701B1
Authority
EP
European Patent Office
Prior art keywords
sheet
aligned
side edge
actual
measuring device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03002782A
Other languages
German (de)
French (fr)
Other versions
EP1340701A2 (en
EP1340701A3 (en
Inventor
Arndt Jentzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1340701A2 publication Critical patent/EP1340701A2/en
Publication of EP1340701A3 publication Critical patent/EP1340701A3/en
Application granted granted Critical
Publication of EP1340701B1 publication Critical patent/EP1340701B1/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
    • B65H11/00—Feed tables
    • B65H11/007—Feed tables with front stop arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • 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
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve
    • B65H2557/2423—Calculating methods; Mathematic models involving a particular data profile or curve involving an average value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1315—Edges side edges, i.e. regarded in context of transport

Definitions

  • the invention relates to a device for aligning sheets after a side edge, in the actual position of an aligned to front marks applied sheet on a feed table detected by a measuring device and by a Bogenbeschreibungsvorraum is transferred to a gripper system of a drum, wherein the gripper system for the realization a desired position is arranged displaceably in the axial direction.
  • Such a device is known from DE 36 44 431 A1 and from DE 199 06 499 A1 and EP 0 753 407 A2.
  • this device is the actual position of the sheet to be aligned by means of a measuring device on the feed table determined and compared in an evaluation unit with a predetermined target position.
  • a control signal is generated, controlled by an actuator which corresponds to the gripper system of a downstream drum.
  • the gripper system is moved so that of the gripper system held bow to be aligned with respect to its side edge brought into the desired position becomes.
  • the measuring equipment In order to avoid that by the measuring device when detecting the actual position, due to small damages or fibers, erroneous measurements occur at the side edge, is proposed in DE 195 06 467 A1, at least three independently to provide working measuring equipment.
  • the measuring equipment is within one short, parallel to the measuring side edge extending portion juxtaposed for determining a plurality of measured values. From the readings to a location the side edge are determined, by means of a mathematical method, a measurement result formed that extremes attributable to anomalies of the side edge of the Hides measured values.
  • a disadvantage is the high effort required for implementation, since at least three independent mutually functioning measuring devices must be provided.
  • the object of the invention is to change a generic device so that with simple means an exact detection of the actual position of the side edge of a be aligned Bow is possible regardless of their nature.
  • the object is achieved by a device according to the features of the claim 1 solved.
  • a sheet system consisting of a feed table 1 with front marks 2, a bow acceleration device 3, which is designed as a vibration system 4 and a Sheet holding system 28, and a drum 5, in which a gripper system 6 axially displaceable is arranged.
  • the drum 5 is a cylinder 9 downstream.
  • a sheet 7 to be aligned On the feed table 1 is a sheet 7 to be aligned, which is to be aligned by the gripper system 6, and a following sheet 8 shown.
  • the feed table 1 is associated with a measuring device 10, at least extends over a characteristic of each machine format range 12, in which the Side edge of the incoming sheet 7,8 can be detected.
  • the format area 12 extends transverse to a conveying direction 11.
  • this is in the feed table 1 a transversely to the conveying direction 11 extending channel 13 is provided, in which the measuring device 10 is arranged.
  • the channel 13 is closed with a transparent cover strip 14, such that the surface of the feed table 1 and the cover strip 14 have a common plane form.
  • the measuring device 10 is used as an opto-electrical measuring device, e.g. as a reflex line 15 trained. However, any other measuring principle can also be used.
  • the Reflex line 15 consists of a lighting device extending over the entire length 16 and one approximately in the same plane, on an adjacent to the illumination device 16 parallel position and also over the entire Length extending receiver 17.
  • the receiver may consist of individual, one behind the other CCD elements or as extending over the entire format area 12 Scanner line be formed.
  • the CCD elements in turn consist of a variety from in a row juxtaposed measuring elements.
  • the measuring device 10 is connected to an evaluation unit 18, in which target values can be entered and stored.
  • the evaluation unit 18 is linked to an actuating element 19, which in turn is in operative connection with the gripper system 6 of the drum 5.
  • the gripper system 6 consists of gripper fingers 21 which are clamped on a gripper shaft 20 and which correspond to gripper mounts 22.
  • the gripper system 6 is arranged as a functional unit on a carriage 24 which is slidably mounted in a drum channel 23. On the carriage 24 engages a driver 25, which is connected to a concentrically guided in a drum base 26 actuating shaft 27. With the control shaft 27 corresponds to the actuator 19, by which the gripper system 6 can be moved in the axial direction.
  • the sheet 7 to be aligned is conveyed to the feed table 1 and with the front edge against the front marks 2 located in a position on the feed table 1, brought to rest and thus aligned with the leading edge.
  • the actual position of a side edge is detected by the measuring device 10.
  • the measuring device 10 in the design of the measuring device 10 as a reflective line 15 of the illumination device 16 beams imitated, which are reflected from the underside of the sheet 7 to be aligned and detected by the receiver 17. In the area which is not covered by the sheet 7 to be aligned, no rays emitted by the illumination device 16 are reflected, so that the actual position of the side edge is reflected on the receiver 17.
  • a first actual signal is generated, which is supplied to the evaluation unit 18 and stored in this. Thereafter, the fitting with the leading edge of the front lays 2 sheet 7 is detected by the sheet accelerating device 3 and deducted from the feed table 1, wherein the front lays 2 are guided into a position under the feed table 1. If the sheet acceleration device 3 is designed as a vibration system 4, the sheet 7 to be aligned is clamped by the sheet holding system 28 and subsequently removed from the feed table 1.
  • the actual position of the side edge of the sheet 7 to be aligned is measured by the measuring device 10 or The reflex line 15 is detected in a sequence of measurements and the generated further actual signals are supplied to the evaluation unit 18.
  • an average value is formed by the first actual signal and the further actual signals of a measurement cycle, whereby the actual values which exceed a predetermined tolerance, ie actual values which were initiated by anomalies of the side edge, are masked out and thus find no consideration.
  • This actual average value reflects the position of the side edge of the sheet 7 to be aligned and is compared with the desired value stored in the evaluation unit 18.
  • an actuating signal is generated by the evaluation unit 18 and supplied to the actuating element 19.
  • the gripper system 6 is displaced in the axial direction to such an extent that the side edge of the sheet 7 to be aligned is out of the present Position reaches the desired position. Subsequently, the sheet 7 to be aligned is transferred in the desired position of the drum 5 to the cylinder 9.
  • the follower sheet 8 is transported with its leading edge against the front table 2 positioned on the feed table 1, aligned and brought to rest. Subsequently, the actual position of the side edge of the follower sheet 8 is detected by the measuring device 10 / reflex line 15 and analogously realized a series of measurements at the beginning of the peeling.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Registering Or Overturning Sheets (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Ausrichten von Bogen nach einer Seitenkante, bei der die Ist-Lage eines auszurichtenden, an Vordermarken angelegten Bogens auf einem Anlegtisch von einer Messeinrichtung erfasst und durch eine Bogenbeschleunigungsvorrichtung an ein Greifersystem einer Trommel übergeben wird, wobei das Greifersystem zur Realisierung einer Soll-Lage in axialer Richtung verschiebbar angeordnet ist.The invention relates to a device for aligning sheets after a side edge, in the actual position of an aligned to front marks applied sheet on a feed table detected by a measuring device and by a Bogenbeschleunigungsvorrichtung is transferred to a gripper system of a drum, wherein the gripper system for the realization a desired position is arranged displaceably in the axial direction.

Eine derartige Vorrichtung ist aus der DE 36 44 431 A1 sowie aus der DE 199 06 499 A1 und der EP 0 753 407 A2 bekannt. Bei dieser Vorrichtung wird die Ist-Lage des auszurichtenden Bogens mittels einer Messeinrichtung auf dem Anlegtisch ermittelt und in einer Auswerteinheit mit einer vorgegebenen Soll-Lage verglichen. Bei Abweichungen der Ist- von der Soll-Lage wird ein Stellsignal generiert, durch das ein Stellglied angesteuert wird, welches mit dem Greifersystem einer nachgeordneten Trommel korrespondiert. Durch das Stellglied wird das Greifersystem so verschoben, dass der von dem Greifersystem gehaltene auszurichtende Bogen bezüglich seiner Seitenkante in die Soll-Lage gebracht wird. Um zu vermeiden, dass durch die Messeinrichtung beim Erfassen der Ist-Lage, bedingt durch kleine Beschädigungen oder Fasern, an der Seitenkante Fehlmessungen entstehen, wird in der DE 195 06 467 A1 vorgeschlagen, mindestens drei unabhängig voneinander arbeitende Messeinrichtungen vorzusehen. Die Messeinrichtungen sind innerhalb eines kurzen, parallel zur messenden Seitenkante verlaufenden Abschnitt nebeneinander angeordnet zur Ermittlung einer Mehrzahl von Messwerten. Aus den Messwerten, die zu einer Lage der Seitenkante ermittelt werden, wird mittels eines mathematischen Verfahrens ein Messergebnis gebildet, dass auf Anomalien der Seitenkante zurückzuführende Extremwerte der Messwerte ausblendet.Such a device is known from DE 36 44 431 A1 and from DE 199 06 499 A1 and EP 0 753 407 A2. In this device is the actual position of the sheet to be aligned by means of a measuring device on the feed table determined and compared in an evaluation unit with a predetermined target position. In case of deviations the actual of the desired position, a control signal is generated, controlled by an actuator which corresponds to the gripper system of a downstream drum. By the actuator, the gripper system is moved so that of the gripper system held bow to be aligned with respect to its side edge brought into the desired position becomes. In order to avoid that by the measuring device when detecting the actual position, due to small damages or fibers, erroneous measurements occur at the side edge, is proposed in DE 195 06 467 A1, at least three independently to provide working measuring equipment. The measuring equipment is within one short, parallel to the measuring side edge extending portion juxtaposed for determining a plurality of measured values. From the readings to a location the side edge are determined, by means of a mathematical method, a measurement result formed that extremes attributable to anomalies of the side edge of the Hides measured values.

Nachteilig ist der hohe zur Realisierung erforderliche Aufwand, da mindestens drei unabhängig voneinander arbeitende Messeinrichtungen vorgesehen werden müssen.A disadvantage is the high effort required for implementation, since at least three independent mutually functioning measuring devices must be provided.

Aufgabe der Erfindung ist es, eine gattungsgemäße Vorrichtung so zu verändern, dass mit einfachen Mitteln ein exaktes Erfassen der Ist-Lage der Seitenkante eines auszurichtenden Bogens unabhängig von ihrer Beschaffenheit möglich ist.The object of the invention is to change a generic device so that with simple means an exact detection of the actual position of the side edge of a be aligned Bow is possible regardless of their nature.

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

Durch die erfindungsgemäße Lösung ist es möglich, mit einer Messeinrichtung mehrere Messungen der Seitenkante eines auszurichtenden Bogens zu realisieren und mittels einer Mittelwertbildung durch Rauigkeiten der Bogenseitenkante verursachte Fehlmessungen zu kompensieren.
Außerdem ist möglich, durch Anomalien der Bogenseitenkante bedingte Messwerte bei einer Mittelwertbildung auszuschließen.By the solution according to the invention it is possible to realize with a measuring device several measurements of the side edge of a sheet to be aligned and to compensate for a mean value formation caused by roughness of the sheet side edge erroneous measurements.
In addition, it is possible to exclude conditional values due to anomalies of the sheet side edge when averaging.

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

Fig. 1
eine Bogenanlage in der Seitenansicht,
Fig. 2
eine ausschnittsweise Darstellung eines Anlegtischs in der Draufsicht.
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 partial view of a feed table in plan view.

Die Fig. 1 zeigt eine Bogenanlage, bestehend aus einem Anlegtisch 1 mit Vordermarken 2, einer Bogenbeschleunigungsvorrichtung 3, die als Schwinganlage 4 ausgebildet ist sowie ein Bogenhaltesystem 28 aufweist, und einer Trommel 5, in der ein Greifersystem 6 axial verschiebbar angeordnet ist. Der Trommel 5 ist ein Zylinder 9 nachgeordnet. Auf dem Anlegtisch 1 ist ein von dem Greifersystem 6 erfasster auszurichtender Bogen 7 und ein Folgebogen 8 dargestellt. Dem Anlegtisch 1 ist eine Messeinrichtung 10 zugeordnet, die sich mindestens über einen für jede Maschine charakteristischen Formatbereiches 12 erstreckt, in dem die Seitenkante der einlaufenden Bogen 7,8 erfasst werden kann. Der Formatbereich 12 erstreckt sich quer zu einer Förderrichtung 11. Im Ausführungsbeispiel ist dazu im Anlegtisch 1 ein sich quer zur Förderrichtung 11 erstreckender Kanal 13 vorgesehen, in dem die Messeinrichtung 10 angeordnet ist. Der Kanal 13 ist mit einem durchsichtigen Abdeckstreifen 14 verschlossen, so dass die Oberfläche des Anlegtischs 1 und des Abdeckstreifens 14 eine gemeinsame Ebene bilden. Die Messeinrichtung 10 ist als optoelektrische Messeinrichtung , z.B. als Reflexzeile 15 ausgebildet. Es kann jedoch auch jedes andere Messprinzip Verwendung finden. Die Reflexzeile 15 besteht aus einer sich über die gesamte Länge erstreckenden Beleuchtungseinrichtung 16 und einem sich etwa in gleicher Ebene, auf einer benachbarten zur Beleuchtungseinrichtung 16 parallelen Position befindenden und sich ebenfalls über die gesamte Länge erstreckenden Empfänger 17. Der Empfänger kann aus einzelnen, hintereinander geschalteten CCD-Elementen oder als eine sich über den gesamten Formatbereich 12 erstreckende Scannerzeile ausgebildet sein. Die CCD-Elemente bestehen ihrerseits aus einer Vielzahl von in einer Reihe nebeneinander angeordneten Messelementen. 1 shows a sheet system, consisting of a feed table 1 with front marks 2, a bow acceleration device 3, which is designed as a vibration system 4 and a Sheet holding system 28, and a drum 5, in which a gripper system 6 axially displaceable is arranged. The drum 5 is a cylinder 9 downstream. On the feed table 1 is a sheet 7 to be aligned, which is to be aligned by the gripper system 6, and a following sheet 8 shown. The feed table 1 is associated with a measuring device 10, at least extends over a characteristic of each machine format range 12, in which the Side edge of the incoming sheet 7,8 can be detected. The format area 12 extends transverse to a conveying direction 11. In the exemplary embodiment, this is in the feed table 1 a transversely to the conveying direction 11 extending channel 13 is provided, in which the measuring device 10 is arranged. The channel 13 is closed with a transparent cover strip 14, such that the surface of the feed table 1 and the cover strip 14 have a common plane form. The measuring device 10 is used as an opto-electrical measuring device, e.g. as a reflex line 15 trained. However, any other measuring principle can also be used. The Reflex line 15 consists of a lighting device extending over the entire length 16 and one approximately in the same plane, on an adjacent to the illumination device 16 parallel position and also over the entire Length extending receiver 17. The receiver may consist of individual, one behind the other CCD elements or as extending over the entire format area 12 Scanner line be formed. The CCD elements in turn consist of a variety from in a row juxtaposed measuring elements.

Die Messeinrichtung 10 ist mit einer Auswerteinheit 18 verbunden, in die Soll-Werte eingegeben und gespeichert werden können. Die Auswerteinheit 18 ist mit einem Stellelement 19 verknüpft, das seinerseits in Wirkverbindung mit dem Greifersystem 6 der Trommel 5 steht. Das Greifersystem 6 besteht aus auf einer Greiferwelle 20 geklemmten Greiferfingern 21, die mit Greiferaufschlägen 22 korrespondieren. Das Greifersystem 6 ist als funktionelle Einheit auf einem Schlitten 24 angeordnet, der verschiebbar in einem Trommelkanal 23 gelagert ist. Am Schlitten 24 greift ein Mitnehmer 25 an, der mit einer konzentrisch in einem Trommelgrundkörper 26 geführten Stellwelle 27 verbunden ist. Mit der Stellwelle 27 korrespondiert das Stellelement 19, durch das das Greifersystem 6 in axialer Richtung verschoben werden kann. Von einem nicht dargestellten Bändertisch wird der auszurichtende Bogen 7 au den Anlegtisch 1 und mit der Vorderkante gegen die in einer Position am Anlegtisch 1 befindlichen Vordermarken 2 gefördert, zur Ruhe gebracht und so nach der Vorderkante ausgerichtet. Von dem in Ruhe befindlichen auszurichtenden Bogen 7 wird die Ist-Lage einer Seitenkante durch die Messeinrichtung 10 erfasst. Dazu werden bei Ausbildung der Messeinrichtung 10 als Reflexzeile 15 von der Beleuchtungseinrichtung 16 Strahlen imitiert, die von der Unterseite des auszurichtenden Bogens 7 reflektiert und vom Empfänger 17 erfasst werden. Im Bereich, der nicht vom auszurichtenden Bogen 7 abgedeckt ist, werden keine von der Beleuchtungseinrichtung 16 ausgesandten Strahlen reflektiert, so dass sich die Ist-Lage der Seitenkante auf dem Empfänger 17 abbildet. Durch den Empfänger 17 wird ein erstes Ist-Signal generiert, welches der Auswerteinheit 18 zugeführt und in dieser gespeichert wird.
Danach wird der mit der Vorderkante an den Vordermarken 2 anliegende auszurichtende Bogen 7 von der Bogenbeschleunigungsvorrichtung 3 erfasst und vom Anlegtisch 1 abgezogen, wobei die Vordermarken 2 in eine Position unter den Anlegtisch 1 geführt werden. Ist die Bogenbeschleunigungsvorrichtung 3 als Schwinganlage 4 ausgebildet, wird der auszurichtende Bogen 7 von dem Bogenhaltesystem 28 geklemmt und nachfolgend vom Anlegtisch 1 abgezogen. In der ersten Phase des Abziehens, in der die Vorderkante des auszurichtenden Bogens 7 einen Weg s zurücklegt, wobei s etwa 2 bis 10 mm betragen kann, wird die Ist-Lage der Seitenkante des in der Bewegung befindlichen auszurichtenden Bogens 7 von der Messeinrichtung 10 bzw. der Reflexzeile 15 in einer Folge von Messungen erfasst und die generierten weiteren Ist-Signale der Auswerteinheit 18 zugeführt. In der Auswerteinheit 18 wird von dem ersten Ist-Signal und den weiteren Ist-Signalen eines Messzyklus ein Mittelwert gebildet, wobei die Ist-Werte, die eine vorgegebene Toleranz überschreiten, also Ist-Werte, die durch Anomalien der Seitenkante initiiert wurden, ausgeblendet werden und damit keine Berücksichtigung finden. Dieser Ist-Mittelwert gibt die Lage der Seitenkante des auszurichtenden Bogens 7 wieder und wird mit dem in der Auswerteinheit 18 abgelegten Soll-Wert verglichen. The measuring device 10 is connected to an evaluation unit 18, in which target values can be entered and stored. The evaluation unit 18 is linked to an actuating element 19, which in turn is in operative connection with the gripper system 6 of the drum 5. The gripper system 6 consists of gripper fingers 21 which are clamped on a gripper shaft 20 and which correspond to gripper mounts 22. The gripper system 6 is arranged as a functional unit on a carriage 24 which is slidably mounted in a drum channel 23. On the carriage 24 engages a driver 25, which is connected to a concentrically guided in a drum base 26 actuating shaft 27. With the control shaft 27 corresponds to the actuator 19, by which the gripper system 6 can be moved in the axial direction. From a belt table, not shown, the sheet 7 to be aligned is conveyed to the feed table 1 and with the front edge against the front marks 2 located in a position on the feed table 1, brought to rest and thus aligned with the leading edge. From the sheet 7 to be aligned at rest, the actual position of a side edge is detected by the measuring device 10. For this purpose, in the design of the measuring device 10 as a reflective line 15 of the illumination device 16 beams imitated, which are reflected from the underside of the sheet 7 to be aligned and detected by the receiver 17. In the area which is not covered by the sheet 7 to be aligned, no rays emitted by the illumination device 16 are reflected, so that the actual position of the side edge is reflected on the receiver 17. By the receiver 17, a first actual signal is generated, which is supplied to the evaluation unit 18 and stored in this.
Thereafter, the fitting with the leading edge of the front lays 2 sheet 7 is detected by the sheet accelerating device 3 and deducted from the feed table 1, wherein the front lays 2 are guided into a position under the feed table 1. If the sheet acceleration device 3 is designed as a vibration system 4, the sheet 7 to be aligned is clamped by the sheet holding system 28 and subsequently removed from the feed table 1. In the first phase of the peeling off, in which the leading edge of the sheet 7 to be aligned covers a distance s, where s can be about 2 to 10 mm, the actual position of the side edge of the sheet 7 to be aligned is measured by the measuring device 10 or The reflex line 15 is detected in a sequence of measurements and the generated further actual signals are supplied to the evaluation unit 18. In the evaluation unit 18, an average value is formed by the first actual signal and the further actual signals of a measurement cycle, whereby the actual values which exceed a predetermined tolerance, ie actual values which were initiated by anomalies of the side edge, are masked out and thus find no consideration. This actual average value reflects the position of the side edge of the sheet 7 to be aligned and is compared with the desired value stored in the evaluation unit 18.

Weicht der Ist-Mittelwert des auszurichtenden Bogens 7 von dem Soll-Wert ab, wird durch die Auswerteinheit 18 ein Stellsignal generiert und dem Stellelement 19 zugeführt. Durch das Stellelement 19 wird, nachdem der auszurichtende Bogen 7 von der Bogenbeschleunigungsvorrichtung 3/Schwinganlage 4 an das Greifersystem 6 der Trommel 5 übergeben wurde, das Greifersystem 6 in einem solchen Maß in axialer Richtung verschoben, dass die Seitenkante des auszurichtenden Bogens 7 aus der Ist-Lage in die Soll-Lage gelangt. Nachfolgend wird der auszurichtende Bogen 7 in der Soll-Lage von der Trommel 5 an den Zylinder 9 übergeben.
Während des Transports des auszurichtenden Bogens 7 zur Trommel 5 wird der Folgebogen 8 mit seiner Vorderkante gegen die am Anlegtisch 1 positionierten Vordermarken 2 transportiert, ausgerichtet und zur Ruhe gebracht. Anschließend wird durch die Messeinrichtung 10/Reflexzeile 15 die Ist-Lage der Seitenkante des Folgebogens 8 erfasst und analog eine Folge von Messungen zu Beginn des Abziehens realisiert. If the actual mean value of the sheet 7 to be aligned differs from the desired value, an actuating signal is generated by the evaluation unit 18 and supplied to the actuating element 19. By the adjusting element 19, after the sheet 7 to be aligned has been transferred from the sheet accelerating device 3 / vibration system 4 to the gripper system 6 of the drum 5, the gripper system 6 is displaced in the axial direction to such an extent that the side edge of the sheet 7 to be aligned is out of the present Position reaches the desired position. Subsequently, the sheet 7 to be aligned is transferred in the desired position of the drum 5 to the cylinder 9.
During the transport of the sheet 7 to be aligned to the drum 5, the follower sheet 8 is transported with its leading edge against the front table 2 positioned on the feed table 1, aligned and brought to rest. Subsequently, the actual position of the side edge of the follower sheet 8 is detected by the measuring device 10 / reflex line 15 and analogously realized a series of measurements at the beginning of the peeling.

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
auszurichtender Bogenbow to be aligned
88th
Folgebogenepisode arc
99
Zylindercylinder
1010
Messeinrichtungmeasuring device
1111
Förderrichtungconveying direction
1212
Formatbereichformat range
1313
Kanalchannel
1414
Abdeckstreifenflap
1515
Reflexzeilereflex line
1616
Beleuchtungseinrichtunglighting device
1717
Empfängerreceiver
1818
Auswerteinheitevaluation
1919
Stellelementactuator
2020
Greiferwellegripper shaft
2121
Greiferfingergripper fingers
2222
Greiferaufschlaggripper
2323
Trommelkanaldrum channel
2424
Schlittencarriage
2525
Mitnehmertakeaway
2626
TrommelgrundkörperDrum base
2727
Stellwelleactuating shaft
2828
BogenhaltesystemSheet holding system
ss
Wegpath

Claims (5)

  1. Device for aligning of sheets according to a side edge, in which the actual position of a sheet, which is to be aligned and which is placed at front lay marks, on a feed table is detected by a measuring device and transferred by a sheet accelerating device to a gripper system of a drum, wherein the gripper system is arranged to be displaceable in axial direction for realisation of a desired position, characterised in that in addition to detection of the actual position of the side edge of the sheet (7), which is placed at the front lay marks (2) and is to be aligned, a detection of the actual position of the side edge is carried out in a succession of measurements by the measuring device (10) while the sheet (7) to be aligned, guided by the sheet accelerating device (3), covers a path (s), wherein the measuring device (10) is connected with an evaluating unit (18) for formation of an mean actual value from the sum of the ascertained actual values.
  2. Device according to claim 1, characterised in that formation of the mean actual value is carried out with consideration of the actual values lying within a tolerance range.
  3. Device according to claim 1, characterised in that the actual values generated by anomalies of the side edge are not taken into consideration in the formation of the mean actual value.
  4. Device according to claim 1, characterised in that the path (s) amounts to approximately 2 to 10 millimetres.
  5. Device according to claim 1, characterised in that in the case of deviations of the mean actual value from a target value able to be input into the evaluating unit (18) a setting signal can be generated for controlling a setting element (19) taking the gripper system (6) in axial direction.
EP03002782A 2002-02-27 2003-02-07 Apparatus for laterally aligning sheets Expired - Lifetime EP1340701B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10208570A DE10208570A1 (en) 2002-02-27 2002-02-27 Device for aligning sheets to a side edge
DE10208570 2002-02-27

Publications (3)

Publication Number Publication Date
EP1340701A2 EP1340701A2 (en) 2003-09-03
EP1340701A3 EP1340701A3 (en) 2004-06-16
EP1340701B1 true EP1340701B1 (en) 2005-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002782A Expired - Lifetime EP1340701B1 (en) 2002-02-27 2003-02-07 Apparatus for laterally aligning sheets

Country Status (2)

Country Link
EP (1) EP1340701B1 (en)
DE (2) DE10208570A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057843A1 (en) * 2004-12-01 2006-06-08 Koenig & Bauer Ag Lenticular foil processing method for sheet printing press, involves aligning sheet from lenticular foil in sheet running direction and also transverse to sheet running direction after forming tangents between neighboring lens strips
DE102004057842A1 (en) * 2004-12-01 2006-06-08 Koenig & Bauer Ag Device for treatment of sheets has feed table on which sheets are placed aligned against front marks and end rollers which are arranged at the feed table at distance from front marks and lying on feed line
DE102007061398A1 (en) 2007-12-19 2009-06-25 Koenig & Bauer Aktiengesellschaft Transparent or translucent sheet's edge detecting method for use in sheet processing machine, involves providing sheet with marking by marking unit in distance to front edge before detection of position of side edge
DE102016226168B4 (en) 2016-12-23 2019-03-21 Koenig & Bauer Ag Device for monitoring sheet travel along a transport path
DE102017207706B4 (en) 2017-05-08 2019-03-28 Koenig & Bauer Ag Device for monitoring sheet travel along a transport path

Family Cites Families (6)

* 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
EP0716287B1 (en) * 1994-12-10 2001-04-25 Koenig & Bauer Aktiengesellschaft Device for measuring a position of webs or sheets
DE19506467A1 (en) * 1995-02-24 1996-08-29 Koenig & Bauer Albert Ag Device and method for measuring a position of an edge of webs or sheets
DE19506466C1 (en) * 1995-02-24 1996-09-26 Koenig & Bauer Albert Ag Sheet edge position measuring device
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
DE19906499B4 (en) * 1999-02-17 2006-08-03 Koenig & Bauer Ag Method and device for laterally aligning sheets

Also Published As

Publication number Publication date
EP1340701A2 (en) 2003-09-03
DE50300499D1 (en) 2005-06-09
DE10208570A1 (en) 2003-09-04
EP1340701A3 (en) 2004-06-16

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