EP1582490A1 - Device for feeding a stream of overlapping sheets - Google Patents

Device for feeding a stream of overlapping sheets Download PDF

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Publication number
EP1582490A1
EP1582490A1 EP05004412A EP05004412A EP1582490A1 EP 1582490 A1 EP1582490 A1 EP 1582490A1 EP 05004412 A EP05004412 A EP 05004412A EP 05004412 A EP05004412 A EP 05004412A EP 1582490 A1 EP1582490 A1 EP 1582490A1
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EP
European Patent Office
Prior art keywords
sheet
suction
last
belt
suction box
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
EP05004412A
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German (de)
French (fr)
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EP1582490B1 (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
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Koenig and Bauer AG
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Publication date
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Publication of EP1582490A1 publication Critical patent/EP1582490A1/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
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • 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
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/321—Suction belts integral in feed table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping

Definitions

  • the invention relates to a device for supplying a scaly arc stream from a sheet pile of a sheet feeder to a feed table of a sheet processing machine Machine with a belt table, with at least one revolving driven Suction belt is provided with at least two consecutively with suction acted upon suction boxes in operative connection, as well as with means for detecting the arc.
  • Such devices are well known.
  • the one by a sheet feeder of one Sheet pile isolated sheets are seen as shingled stream stream on one Transported belt table having suction belts, there detected by the suction belts and transported to the feed table.
  • the suction belts are in the area of sheet transfer pressurized by a suction box facing the sheet feeder, while in the area of sheet transfer to the feed table, the suction belts be subjected to negative pressure by one of the machine-facing suction box.
  • the respective foremost arc of the sheet flow is on the feed table with the leading edge guided against leading brands and so aligned to the front edge. following If the bow is e.g. aligned to the side edge.
  • EP 0 554 774 B1 it is proposed in EP 0 554 774 B1 to detect the supply of the last arc of the arc current. After the penultimate sheet has been withdrawn, the vacuum supply to the machine facing suction box is interrupted and connected to an overpressure source. This device is not applicable in the thin pressure range, since a defined guidance of the last sheet is not given to the leading brands.
  • the object of the invention is to modify a generic device so that regardless of the material to be processed, even the last arc of a sheet flow is easily aligned.
  • the object is achieved by a device according to the features of Claim 1 solved.
  • the solution according to the invention makes it possible, the last arc of a scaly arc stream regardless of the material condition defined on the front lays to apply. This will ensure that the entire process gets processed Material can be processed trouble-free.
  • a belt table 1 with a downstream feed table 2 is shown schematically in side view.
  • the belt table 1 has at least one suction belt 3, which is guided over an upper deflecting roller 4 and a lower deflecting roller 5 and tensioned by means of two rollers 6.
  • a sheet feeder not shown, facing suction box 7 and a lower, also not shown bow-processing machine facing suction box 8 is arranged. Between the suction boxes 7, 8 more suction boxes can be arranged.
  • the upper suction box 7 is connected via a suction nozzle 9 with a first vacuum source, not shown, and the lower suction box 8 via a suction nozzle 10 with a second vacuum source, not shown.
  • a suction nozzle 10 opening or closing actuator 11 is arranged at the suction nozzle 10 .
  • a ventilation flap 12 is further provided, which can be actuated by means of an adjusting device 13.
  • the belt table 1 is followed by the feed table 2, of which a table top 14 is shown. In your position on the feed table 2 leading marks 15 are shown.
  • the front marks 15 can be spent in the working cycle from the position on the feed table 2 in a pivoted-away from the feed table 2 position. Adjacent to the front marks 15, a sheet 17 to be aligned, to which a following sheet 18 is arranged downstream as the last sheet 19, is shown.
  • a double-sheet control 16 is further provided, while the upper guide roller 4 is assigned a cyclically operating swab roller 23.
  • the drive of the suction belt 3 in a sheet transport direction 25 is effected by a drive unit 20 assigned to the upper deflection roller 5.
  • the drive unit 20 is connected to a control unit 21 which is linked to the setting unit 11, the setting device 13 and the double sheet control 16.
  • Also connected to the control unit 21 are the machine controller 22 and an input unit 24.
  • the sheets separated by the sheet feeder are fed to the belt table 1 under suction and are picked up by the suction belt 3, supported by the swab roller 23 guided in the working cycle against the upper deflection roller 4.
  • the holding force acting on the sheet is realized by the negative pressure built up in the upper suction box 7 by means of the vacuum source connected to the suction nozzle 9.
  • the sheets are conveyed as a sheet flow from the suction belt 3, driven by the drive unit 20, in the sheet transport direction 25, wherein the respective foremost sheet of the sheet flow is transported as bow 17 ausuinfoder on the feed table 2 and with the front edge against the front marks 15.
  • the force acting on the sheet 17 to be aligned, initiated by means of the pressure prevailing in the lower suction box 8 negative pressure holding force is minimized by the underlap of the subsequent sheet 18 or completely canceled.
  • the sheet 17 to be aligned can be easily applied to the front marks 15 and subsequently also aligned, if necessary, according to the side edge.
  • the sheet 17 After aligning the sheet 17 is withdrawn by means not shown and transported to the downstream sheet-processing machine. Simultaneously with the removal of the sheet 17 to be aligned, the follower sheet 18 is conveyed in the sheet transport direction 25. If a single arc is detected by the double sheet control 16 as a function of the position on the belt table 1 and the stagger spacing of the undercut arc current instead of a double or triple arc, this is detected as the last arc of the arc current and generates a signal. It is advantageous to assign the double-sheet control 16 to the belt table 1 in such a way that it detects the sheet 17 / subsequent sheet 18 or another sheet to be aligned with the underlap. The signal generated by the double-sheet control 16 is supplied to the control unit 21.
  • the last sheet 19 is detected and found in the control unit 21, the number of located between the front lays 15 and the last sheet 19 bow or the number of work cycles, which must be realized until the last sheet 19 rests as bow 17 ausuzinder to the front marks 15. If the sheet designated in the figurative representation as a follower sheet 18 is identified as the last sheet 19, the follower sheet 18 / last sheet 19 is transported against the leading marks 15 during the removal of the sheet 17 to be aligned by means of a sheet feeder, not shown. In this case, controlled by the control unit 21, the drive unit 20 is stopped, and thus the movement of the suction belt 3 is interrupted when the leading edge of the determined as last sheet 19 subsequent sheet 18 applies to the front marks 15.
  • the drive unit 20 can be stopped so that the last sheet 19 applies with a lower suppression of the front marks 15. Simultaneously or immediately before the application or within the power stroke, in which the transport of the last sheet 19, the vacuum supply to the lower suction box 8 is interrupted by the control unit 21 by means of the adjusting unit 11 and the venting flap 12 is opened by the adjusting device 13. Thus, the last sheet 19 can be aligned to the side edge and subsequently withdrawn.
  • the interruption of the vacuum supply by means of the adjusting unit 11 to the lower suction box 8 and the opening of the venting flap 12 by the adjusting device 13 is arbitrarily within the working cycle, in which the last sheet 19 is transported to the front lays 15, via the input unit 24 possible.
  • the release of the last sheet 19 can be adjusted depending on the material to be processed or on the design of the sheet system. For example, in a sheet feeder where side edge alignment is provided on the feed table 2 after alignment with respect to the leading edge, the ventilation of the lower suction box 8 must be earlier than in a sheet feeder with side edge alignment on a downstream cylinder.
  • the last bend 19 and its position on the belt table are detected by the double-sheet control 16. It is also possible to detect the final arc 19 by additional means.
  • the last sheet 19 and thus the sheet located on the feed table 1 / belt table 2 before this can be detected by the machine control.

Abstract

Device for delivering a sheet stream from a stack of a sheet feeder to a feed table (2) of a sheet-processing machine comprises a belt table (1) provided with at least one peripherally driven suction belt (3) that interacts with at least two suction boxes (7, 8) arranged behind each other. The suction belt is stopped after detection of the last sheet (19) of the sheet stream and after placing of the last sheet with its front edge on the front marks (15). Preferred Features: The suction air is supplied to the lower suction box (8) by a control unit (11).

Description

Die Erfindung betrifft eine Vorrichtung zum Zuführen eines geschuppten Bogenstromes von einem Bogenstapel eines Bogenanlegers zu einem Anlegtisch einer bogenverarbeitenden Maschine mit einem Bändertisch, der mit mindestens einem umlaufend angetriebenen Saugband versehen ist, das mit mindestens zwei hintereinander mit Saugluft beaufschlagbaren Saugkästen in Wirkverbindung steht, sowie mit Mitteln zum Erfassen der Bogen.The invention relates to a device for supplying a scaly arc stream from a sheet pile of a sheet feeder to a feed table of a sheet processing machine Machine with a belt table, with at least one revolving driven Suction belt is provided with at least two consecutively with suction acted upon suction boxes in operative connection, as well as with means for detecting the arc.

Derartige Vorrichtungen sind allgemein bekannt. Die durch einen Bogenanleger von einem Bogenstapel vereinzelten Bogen werden als geschuppter Bogenstrom auf einem Saugbänder aufweisenden Bändertisch transportiert, dort von den Saugbändern erfasst und zum Anlegtisch transportiert. Dabei werden die Saugbänder im Bereich der Bogenübernahme von einem dem Bogenanleger zugewandten Saugkasten unterdruckbeaufschlagt, während im Bereich der Bogenübergabe auf den Anlegtisch die Saugbänder durch einen der Maschine zugewandten Saugkasten mit Unterdruck beaufschlagt werden. Der jeweils vorderste Bogen des Bogenstroms wird auf dem Anlegtisch mit der Vorderkante gegen Vordermarken geführt und so nach der Vorderkante ausgerichtet. Nachfolgend wird der Bogen z.B. nach der Seitenkante ausgerichtet. Beim Ausrichten des jeweils vordersten Bogens darf dieser durch die Saugbänder nur mit einer solchen Haltekraft geführt werden, dass beim Anlegen des Bogens an die Vordermarken die Vorderkante nicht beschädigt wird und eine Seitenausrichtung problemlos möglich ist. Das wird dadurch ermöglicht, dass durch den unterschuppt angeordneten Folgebogen die Saugbänder vollständig oder nahe vollständig abgedeckt werden, so dass der auszurichtende Bogen nur mit einer geringen Haltekraft im Übergabebereich geführt wird. Fehlt ein Folgebogen, wenn z.B. der Bogenstrom unterbrochen wird, wirkt auf den letzten auszurichtenden Bogen eine solche Haltkraft, dass bei der Verarbeitung von Papier die Gefahr einer Beschädigung der Bogenvorderkante besteht bzw. eine exakte Seitenausrichtung nicht möglich ist.Such devices are well known. The one by a sheet feeder of one Sheet pile isolated sheets are seen as shingled stream stream on one Transported belt table having suction belts, there detected by the suction belts and transported to the feed table. The suction belts are in the area of sheet transfer pressurized by a suction box facing the sheet feeder, while in the area of sheet transfer to the feed table, the suction belts be subjected to negative pressure by one of the machine-facing suction box. The respective foremost arc of the sheet flow is on the feed table with the leading edge guided against leading brands and so aligned to the front edge. following If the bow is e.g. aligned to the side edge. When aligning each Foremost bow may this led by the suction belts only with such a holding force be that when creating the sheet to the front marks the leading edge is not is damaged and a page orientation is easily possible. That's going to happen allows the suction belts to be completely opened by the lower-lying following bend or close completely covered, so that the bow to be aligned only is performed with a low holding force in the transfer area. Missing a follow-up sheet, if e.g. the arc current is interrupted acts on the last sheet to be aligned such a holding force that when processing paper carries the risk of damage the sheet leading edge exists or an exact page orientation is not possible is.

Um diesen Nachteil zu beseitigen, wird in der EP 0 554 774 B1 vorgeschlagen, die Zufuhr des letzten Bogens des Bogenstroms zu erfassen. Nachdem der vorletzte Bogen abgezogen worden ist, wird die Unterdruckzufuhr zum der Maschine zugewandten Saugkasten unterbrochen und dieser mit einer Überdrückquelle verbunden.
Diese Vorrichtung ist im Dünndruckbereich nicht anwendbar, da eine definierte Führung des letzten Bogens zu den Vordermarken nicht gegeben ist. In order to eliminate this disadvantage, it is proposed in EP 0 554 774 B1 to detect the supply of the last arc of the arc current. After the penultimate sheet has been withdrawn, the vacuum supply to the machine facing suction box is interrupted and connected to an overpressure source.
This device is not applicable in the thin pressure range, since a defined guidance of the last sheet is not given to the leading brands.

Aufgabe der Erfindung ist es, eine gattungsgemäße Vorrichtung so zu verändern, dass unabhängig vom zur Verarbeitung gelangenden Material auch der letzte Bogen eines Bogenstroms problemlos ausgerichtet wird.The object of the invention is to modify a generic device so that regardless of the material to be processed, even the last arc of a sheet flow is easily aligned.

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 Claim 1 solved.

Die erfindungsgemäße Lösung ermöglicht es, den letzten Bogen eines geschuppten Bogenstromes unabhängig von der Materialbeschaffenheit definiert an den Vordermarken anzulegen. Damit wird sichergestellt, dass das gesamte zur Verarbeitung gelangende Material störungsfrei verarbeitet werden kann.The solution according to the invention makes it possible, the last arc of a scaly arc stream regardless of the material condition defined on the front lays to apply. This will ensure that the entire process gets processed Material can be processed trouble-free.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. In der zugehörigen Zeichnung ist ein Bändertisch 1 mit einem nachgeordneten Anlegtisch 2 schematisch in Seitenansicht dargestellt. Der Bändertisch 1 weist mindestens ein Saugband 3 auf, das über eine obere Umlenkwalze 4 und eine untere Umlenkwalze 5 geführt sowie mittels zweier Walzen 6 gespannt wird. Im Bändertisch 1 ist ein oberer, einem nicht dargestellten Bogenanleger zugewandter Saugkasten 7 und ein unterer, einer ebenfalls nicht dargestellten bogenverarbeitenden Maschine zugewandter Saugkasten 8 angeordnet. Zwischen den Saugkästen 7, 8 können weitere Saugkästen angeordnet sein. Der obere Saugkasten 7 ist über einen Saugstutzen 9 mit einer nicht dargestellten ersten Unterdruckquelle und der untere Saugkasten 8 über einen Saugstutzen 10 mit einer nicht dargestellten zweiten Unterdruckquelle verbunden. Am Saugstutzen 10 ist eine den Saugstutzen 10 öffnende oder schließende Stelleinheit 11 angeordnet. Am unteren Saugkasten 8 ist weiterhin eine Entlüftungsklappe 12 vorgesehen, die mittels einer Stelleinrichtung 13 betätigt werden kann.
Dem Bändertisch 1 ist der Anlegtisch 2 nachgeordnet, von dem ein Tischblech 14 gezeigt ist. In Ihrer Position am Anlegtisch 2 sind Vordermarken 15 dargestellt. Die Vordermarken 15 können im Arbeitstakt aus der Position am Anlegtisch 2 in eine vom Anlegtisch 2 abgeschwenkte Position verbracht werden. An den Vordermarken 15 anliegend, ist ein auszurichtender Bogen 17, dem ein Folgebogen 18 als Letztbogen 19 nachgeordnet ist, dargestellt. Vor der unteren Umlenkwalze 5 ist weiterhin eine Doppelbogenkontrolle 16 vorgesehen, während der oberen Umlenkwalze 4 eine taktweise arbeitende Tupferwalze 23 zugeordnet ist. Der Antrieb des Saugbandes 3 in eine Bogentransportrichtung 25 erfolgt durch eine der oberen Umlenkwalze 5 zugeordnete Antriebseinheit 20. Die Antriebseinheit 20 ist verbunden mit einer Steuereinheit 21, die mit der Stelleinheit 11, der Stelleinrichtung 13 und der Doppelbogenkontrolle 16 verknüpft ist. Mit der Steuereinheit 21 sind auch die Maschinensteuerung 22 und eine Eingabeeinheit 24 verbunden.
Die vom Bogenanleger vereinzelten Bogen werden unterschuppt dem Bändertisch 1 zugeführt und vom Saugband 3, unterstützt durch die im Arbeitstakt gegen die obere Umlenkwalze 4 geführte Tupferwalze 23, erfasst. Die auf die Bogen wirkende Haltekraft wird realisiert durch den im oberen Saugkasten 7 mittels der mit dem Saugstutzen 9 verbundenen Unterdruckquelle aufgebauten Unterdruck. Die Bogen werden als Bogenstrom von dem Saugband 3, angetrieben durch die Antriebseinheit 20, in Bogentransportrichtung 25 gefördert, wobei der jeweils vorderste Bogen des Bogenstromes als auszurichtender Bogen 17 auf den Anlegtisch 2 und mit der Vorderkante gegen die Vordermarken 15 transportiert wird. Dabei wird die auf den auszurichtenden Bogen 17 wirkende, mit Hilfe des im unteren Saugkastens 8 herrschenden Unterdrucks initiierte Haltekraft durch die Unterlappung des Folgebogens 18 minimiert oder vollständig aufgehoben. Dadurch kann der auszurichtende Bogen 17 problemlos an den Vordermarken 15 angelegt und nachfolgend ebenso ggf. nach der Seitenkante ausgerichtet werden. Nach dem ausrichten wird der Bogen 17 durch nicht dargestellte Mittel abgezogen und in die nachgeordnete bogenverarbeitende Maschine transportiert. Gleichzeitig mit dem Abziehen des auszurichtenden Bogens 17 wird der Folgebogen 18 in Bogentransportrichtung 25 gefördert.
Wird von der Doppelbogenkontrolle 16 in Abhängigkeit von der Position auf dem Bändertisch 1 sowie des Staffelabstandes des unterlappten Bogenstroms statt eines Doppel-oder Dreifachbogens ein Einfachbogen detektiert, so wird dieser als letzter Bogen des Bogenstromes erkannt und ein Signal generiert. Dabei ist es vorteilhaft, die Doppelbogenkontrolle 16 so dem Bändertisch 1 zuzuordnen, dass diese die Unterlappung auszurichtender Bogen 17/Folgebogen 18 bzw. eines weiteren Bogens erfasst.
Das von der Doppelbogenkontrolle 16 generierte Signal wird der Steuereinheit 21 zugeführt. Damit wird der Letztbogen 19 erkannt und in der Steuereinheit 21 die Anzahl der zwischen den Vordermarken 15 und dem Letztbogen 19 befindlichen Bogen bzw. die Anzahl Arbeitstakte festgestellt, die realisiert werden müssen, bis der Letztbogen 19 als auszurichtender Bogen 17 an den Vordermarken 15 anliegt. Wird der in der figürlichen Darstellung als Folgebogen 18 bezeichnete Bogen als Letztbogen 19 festgestellt, wird während des Abziehens des auszurichtenden Bogens 17 mittels einer nicht dargestellten Bogenzuführeinrichtung der Folgebogen 18/Letztbogen 19 gegen die Vordermarken 15 transportiert. Dabei wird, gesteuert durch die Steuereinheit 21, die Antriebseinheit 20 gestoppt und damit die Bewegung des Saugbandes 3 unterbrochen, wenn die Vorderkante des als Letztbogen 19 ermittelten Folgebogens 18 an den Vordermarken 15 anlegt. Dabei kann die Antriebseinheit 20 so gestoppt werden, dass der Letztbogen 19 mit einer geringeren Überdrückung an den Vordermarken 15 anlegt. Gleichzeitig oder unmittelbar vor dem Anlegen bzw. innerhalb des Arbeitstaktes, in dem der Transport des Letztbogens 19 erfolgt, wird über die Steuereinheit 21 die Unterdruckzufuhr zum unteren Saugkasten 8 mittels der Stelleinheit 11 unterbrochen und die Entlüftungsklappe 12 durch die Stelleinrichtung 13 geöffnet. Damit kann der Letztbogen 19 nach der Seitenkante ausgerichtet und nachfolgend abgezogen werden.
Das Unterbrechen der Unterdruckzufuhr mittels der Stelleinheit 11 zum unteren Saugkasten 8 und das öffnen der Entlüftungsklappe 12 durch die Stelleinrichtung 13 ist beliebig innerhalb des Arbeitstaktes, in dem der Letztbogen 19 zu den Vordermarken 15 transportiert wird, über die Eingabeeinheit 24 möglich. Damit kann die Freigabe des Letztbogens 19 in Abhängigkeit vom zur Verarbeitung gelangenden Material oder von der Ausgestaltung der Bogenanlage angepasst werden. So muss z.B. in einer Bogenanlage, bei der nach dem Ausrichten bezüglich der Vorderkante eine Seitenkantenausrichtung auf dem Anlegtisch 2 vorgesehen ist, die Belüftung des unteren Saugkastens 8 früher erfolgen als bei einer Bogenanlage mit einer Seitenkantenausrichtung auf einem nachgeordneten Zylinder.
Im Ausführungsbeispiel wird beschrieben, dass der Letztbogen 19 sowie seine Position auf dem Bändertisch durch die Doppelbogenkontrolle 16 erfasst wird. Es ist auch möglich, durch zusätzliche Mittel den Letztbogen 19 zu erfassen. Außerdem können die Letztbogen 19 und damit die auf dem Anlegtisch 1/Bändertisch 2 vor diesem befindlichen Bogen durch die Maschinensteuerung erfasst werden. In one embodiment, the invention is explained in detail. In the accompanying drawing, a belt table 1 with a downstream feed table 2 is shown schematically in side view. The belt table 1 has at least one suction belt 3, which is guided over an upper deflecting roller 4 and a lower deflecting roller 5 and tensioned by means of two rollers 6. In the belt table 1 is an upper, a sheet feeder, not shown, facing suction box 7 and a lower, also not shown bow-processing machine facing suction box 8 is arranged. Between the suction boxes 7, 8 more suction boxes can be arranged. The upper suction box 7 is connected via a suction nozzle 9 with a first vacuum source, not shown, and the lower suction box 8 via a suction nozzle 10 with a second vacuum source, not shown. At the suction nozzle 10 a suction nozzle 10 opening or closing actuator 11 is arranged. At the lower suction box 8, a ventilation flap 12 is further provided, which can be actuated by means of an adjusting device 13.
The belt table 1 is followed by the feed table 2, of which a table top 14 is shown. In your position on the feed table 2 leading marks 15 are shown. The front marks 15 can be spent in the working cycle from the position on the feed table 2 in a pivoted-away from the feed table 2 position. Adjacent to the front marks 15, a sheet 17 to be aligned, to which a following sheet 18 is arranged downstream as the last sheet 19, is shown. Before the lower guide roller 5, a double-sheet control 16 is further provided, while the upper guide roller 4 is assigned a cyclically operating swab roller 23. The drive of the suction belt 3 in a sheet transport direction 25 is effected by a drive unit 20 assigned to the upper deflection roller 5. The drive unit 20 is connected to a control unit 21 which is linked to the setting unit 11, the setting device 13 and the double sheet control 16. Also connected to the control unit 21 are the machine controller 22 and an input unit 24.
The sheets separated by the sheet feeder are fed to the belt table 1 under suction and are picked up by the suction belt 3, supported by the swab roller 23 guided in the working cycle against the upper deflection roller 4. The holding force acting on the sheet is realized by the negative pressure built up in the upper suction box 7 by means of the vacuum source connected to the suction nozzle 9. The sheets are conveyed as a sheet flow from the suction belt 3, driven by the drive unit 20, in the sheet transport direction 25, wherein the respective foremost sheet of the sheet flow is transported as bow 17 ausurichtender on the feed table 2 and with the front edge against the front marks 15. In this case, the force acting on the sheet 17 to be aligned, initiated by means of the pressure prevailing in the lower suction box 8 negative pressure holding force is minimized by the underlap of the subsequent sheet 18 or completely canceled. As a result, the sheet 17 to be aligned can be easily applied to the front marks 15 and subsequently also aligned, if necessary, according to the side edge. After aligning the sheet 17 is withdrawn by means not shown and transported to the downstream sheet-processing machine. Simultaneously with the removal of the sheet 17 to be aligned, the follower sheet 18 is conveyed in the sheet transport direction 25.
If a single arc is detected by the double sheet control 16 as a function of the position on the belt table 1 and the stagger spacing of the undercut arc current instead of a double or triple arc, this is detected as the last arc of the arc current and generates a signal. It is advantageous to assign the double-sheet control 16 to the belt table 1 in such a way that it detects the sheet 17 / subsequent sheet 18 or another sheet to be aligned with the underlap.
The signal generated by the double-sheet control 16 is supplied to the control unit 21. Thus, the last sheet 19 is detected and found in the control unit 21, the number of located between the front lays 15 and the last sheet 19 bow or the number of work cycles, which must be realized until the last sheet 19 rests as bow 17 ausurichtender to the front marks 15. If the sheet designated in the figurative representation as a follower sheet 18 is identified as the last sheet 19, the follower sheet 18 / last sheet 19 is transported against the leading marks 15 during the removal of the sheet 17 to be aligned by means of a sheet feeder, not shown. In this case, controlled by the control unit 21, the drive unit 20 is stopped, and thus the movement of the suction belt 3 is interrupted when the leading edge of the determined as last sheet 19 subsequent sheet 18 applies to the front marks 15. In this case, the drive unit 20 can be stopped so that the last sheet 19 applies with a lower suppression of the front marks 15. Simultaneously or immediately before the application or within the power stroke, in which the transport of the last sheet 19, the vacuum supply to the lower suction box 8 is interrupted by the control unit 21 by means of the adjusting unit 11 and the venting flap 12 is opened by the adjusting device 13. Thus, the last sheet 19 can be aligned to the side edge and subsequently withdrawn.
The interruption of the vacuum supply by means of the adjusting unit 11 to the lower suction box 8 and the opening of the venting flap 12 by the adjusting device 13 is arbitrarily within the working cycle, in which the last sheet 19 is transported to the front lays 15, via the input unit 24 possible. Thus, the release of the last sheet 19 can be adjusted depending on the material to be processed or on the design of the sheet system. For example, in a sheet feeder where side edge alignment is provided on the feed table 2 after alignment with respect to the leading edge, the ventilation of the lower suction box 8 must be earlier than in a sheet feeder with side edge alignment on a downstream cylinder.
In the exemplary embodiment, it is described that the last bend 19 and its position on the belt table are detected by the double-sheet control 16. It is also possible to detect the final arc 19 by additional means. In addition, the last sheet 19 and thus the sheet located on the feed table 1 / belt table 2 before this can be detected by the machine control.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Bändertischbelt table
22
Anlegtischfeed table
33
Saugbandsuction belt
44
obere Umlenkwalzeupper guide roller
55
untere Umlenkwalzelower deflection roller
66
Walzeroller
77
oberer Saugkastenupper suction box
88th
unterer Saugkastenlower suction box
99
Saugstutzensuction
1010
Saugstutzensuction
1111
Stelleinheitactuator
1212
Entlüftungsklappevent flap
1313
Stelleinrichtungsetting device
1414
Tischblechtable sheet
1515
Vordermarkefront lay
1616
DoppelbogenkontrolleDouble sheet control
1717
Auszurichtender BogenBow to be straightened
1818
Folgebogenepisode arc
1919
Letztbogenlast bow
2020
Antriebseinheitdrive unit
2121
Steuereinheitcontrol unit
2222
Maschinensteuerungmachine control
2323
Tupferwalzeswab roll
2424
Eingabeeinheitinput unit
2525
BogentransportrichtungSheet transport direction

Claims (9)

Vorrichtung zum Zuführen eines geschuppten Bogenstromes von einem Bogenstapel eines Bogenanlegers zu einem Anlegtisch einer bogenverarbeitenden Maschine, mit einem Bändertisch, der mit mindestens einem umlaufend angetriebenen Saugband versehen ist, das mit mindestens zwei hintereinander angeordneten, unabhängig voneinander mit Saugluft beaufschlagbaren Saugkästen in Wirkverbindung steht, sowie mit Mitteln zum Erfassen der Bogen, dadurch gekennzeichnet, dass nach dem Erfassen eines Letztbogens (19) des Bogenstromes und dem Anlegen des Letztbogens (19) mit der Vorderkante an Vordermarken (15) das Saugband (3) außer Betrieb setzbar ist.Apparatus for feeding a shingled sheet stream from a sheet stack of a sheet feeder to a feed table of a sheet processing machine, comprising a belt table provided with at least one circumferentially driven suction belt operatively connected to at least two suction boxes arranged independently of each other, which can be supplied with suction air; with means for detecting the sheets, characterized in that after the detection of a last sheet (19) of the sheet flow and the application of the last sheet (19) with the leading edge on front marks (15), the suction belt (3) can be put out of operation. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine Saugluftzuführung innerhalb des den Letztbogen (19) an die Vordermarken (15) führenden Arbeitstaktes zu einem den Vordermarken (15) zugewandten, mit dem Saugband (3) in Verbindung stehenden unteren Saugkasten (8) unterbrechbar und der Saugkasten (8) belüftbar ausgeführt ist.Apparatus according to claim 1, characterized in that a Saugluftzuführung within the last bow (19) leading to the leading edge (15) work cycle to the front brands (15) facing, with the suction belt (3) in communication lower suction box (8) interruptible and the suction box (8) is designed ventilated. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Saugluftzufuhr zum unteren Saugkasten (8) mittels einer Stelleinheit (11) regelbar ist.Apparatus according to claim 1 and 2, characterized in that the suction air supply to the lower suction box (8) by means of an adjusting unit (11) is adjustable. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Belüftung des unteren Saugkastens (8) mittels einer durch eine Stelleinrichtung (13) betätigbare Entlüftungsklappe (12) realisierbar ist.Apparatus according to claim 1 and 2, characterized in that the ventilation of the lower suction box (8) by means of an actuating device (13) operable ventilation flap (12) can be realized. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zum Erfassen des Letztbogens (19) eine Doppelbogenkontrolle (16) vorgesehen ist.Apparatus according to claim 1, characterized in that for detecting the last sheet (19) a double-sheet control (16) is provided. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Unterbrechung der Saugluftzuführung und die Belüftung des unteren Saugkastens (8) innerhalb des Arbeitstaktes verstellbar ausgeführt ist.Apparatus according to claim 1 and 2, characterized in that the interruption of the suction air supply and the ventilation of the lower suction box (8) is designed to be adjustable within the working cycle. Vorrichtung nach Anspruch 1 und 5, dadurch gekennzeichnet, dass bei Erfassen eines Letztbogens (19) durch die Doppelbogenkontrolle (16) ein Signal generierbar und einer Steuereinheit (21) zuführbar ist. Apparatus according to claim 1 and 5, characterized in that upon detection of a last sheet (19) by the double sheet control (16) a signal can be generated and a control unit (21) can be fed. Vorrichtung nach Anspruch 1, 3, 4 und 7, dadurch gekennzeichnet, dass durch die Steuereinheit (21) die Stelleinheit (11) und die Stelleinrichtung (13) beeinflussbar ist.Apparatus according to claim 1, 3, 4 and 7, characterized in that by the control unit (21), the setting unit (11) and the adjusting device (13) can be influenced. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Anlegen des Letztbogens (19) mit einer geringfügigen Überdrückung erfolgt.Apparatus according to claim 1, characterized in that the application of the last sheet (19) takes place with a slight suppression.
EP05004412A 2004-03-30 2005-03-01 Device for feeding a stream of overlapping sheets Expired - Fee Related EP1582490B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015335A DE102004015335A1 (en) 2004-03-30 2004-03-30 Apparatus for feeding a scaly arc stream
DE102004015335 2004-03-30

Publications (2)

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EP1582490A1 true EP1582490A1 (en) 2005-10-05
EP1582490B1 EP1582490B1 (en) 2008-05-07

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ID=34877641

Family Applications (1)

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EP05004412A Expired - Fee Related EP1582490B1 (en) 2004-03-30 2005-03-01 Device for feeding a stream of overlapping sheets

Country Status (3)

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US (1) US7401777B2 (en)
EP (1) EP1582490B1 (en)
DE (2) DE102004015335A1 (en)

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DE102007036134A1 (en) * 2007-08-01 2009-02-05 Koenig & Bauer Aktiengesellschaft Adjustable device to feed sheets in scaled sequence to printing press has timer stoppable at maximum or minimum pressure level in suction box
CN110982164A (en) * 2013-10-15 2020-04-10 巴塞尔聚烯烃股份有限公司 Polyethylene for injection moulding

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DE102005057361A1 (en) * 2005-12-01 2007-06-06 Koenig & Bauer Ag Under-lapped sheet flow conveying device, has suction belt drivable in speed characteristics during transport of last sheet of sequence of sheets on feed table, where speed characteristics exhibit rest with transport speed equal to zero
DE102016212712B4 (en) 2016-07-13 2019-01-31 Koenig & Bauer Ag sheet feeder
DE102016015729A1 (en) 2016-07-13 2018-01-18 Koenig & Bauer Ag sheet feeder
DE102022112361B3 (en) 2022-05-17 2023-04-06 Koenig & Bauer Ag Sheet feeder for a sheet processing machine

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EP0554774A1 (en) * 1992-02-07 1993-08-11 MAN Roland Druckmaschinen AG Device for forwarding a stream overlapping sheets
DE4442629A1 (en) * 1994-12-01 1996-06-05 Heidelberger Druckmasch Ag Suction band feed table for sheets of paper
EP1155996A2 (en) * 2000-04-06 2001-11-21 LTG Mailänder GmbH Device and method for feeding articles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007036134A1 (en) * 2007-08-01 2009-02-05 Koenig & Bauer Aktiengesellschaft Adjustable device to feed sheets in scaled sequence to printing press has timer stoppable at maximum or minimum pressure level in suction box
DE102007036134B4 (en) * 2007-08-01 2019-01-17 Koenig & Bauer Ag Adaptable to the substrate device for feeding sheets in a shingled sequence
CN110982164A (en) * 2013-10-15 2020-04-10 巴塞尔聚烯烃股份有限公司 Polyethylene for injection moulding

Also Published As

Publication number Publication date
DE502005003941D1 (en) 2008-06-19
DE102004015335A1 (en) 2005-10-20
US20050230905A1 (en) 2005-10-20
EP1582490B1 (en) 2008-05-07
US7401777B2 (en) 2008-07-22

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