EP0822154B1 - Device for feeding sheets to a printing machine - Google Patents

Device for feeding sheets to a printing machine Download PDF

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Publication number
EP0822154B1
EP0822154B1 EP97112389A EP97112389A EP0822154B1 EP 0822154 B1 EP0822154 B1 EP 0822154B1 EP 97112389 A EP97112389 A EP 97112389A EP 97112389 A EP97112389 A EP 97112389A EP 0822154 B1 EP0822154 B1 EP 0822154B1
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EP
European Patent Office
Prior art keywords
sheet
suction
suction cross
cross
openings
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
EP97112389A
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German (de)
French (fr)
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EP0822154A3 (en
EP0822154A2 (en
Inventor
Reinhard Rückert
Peter Klein
Ulrich Dr.-Ing. Jung
Thomas Walther
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Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0822154A2 publication Critical patent/EP0822154A2/en
Publication of EP0822154A3 publication Critical patent/EP0822154A3/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
    • B65H3/00—Separating articles from piles
    • B65H3/36—Separating articles from piles by separators moved in special paths, e.g. enclosing an area
    • B65H3/38—Separating articles from piles by separators moved in special paths, e.g. enclosing an area the paths not enclosing an area
    • 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

Definitions

  • the invention relates to a device for guiding sheet-shaped printing materials to sheet-processing machines according to the preamble of the claim 1.
  • the printing material etc. is separated from a stack and in usually in shingled form of the printing press or other sheet processing Machine fed.
  • the arches to Transport equipment of the respective machine can cause the peelable and accelerated sheets the remaining and new aligned bow influenced. Therefore, funds have already been earmarked for to calm or influence the bows in the area of the so-called bow system in general.
  • US-PS 2 160 906 is a device for sheet feeding and alignment known. It has various aids in the area of the arch system, which are used to safely secure the incoming shingled sheets separate, remove and at the same time safely align the newly arriving ones can.
  • cover elements are nestled above the Sheet conveyor table arranged.
  • suction rolls arranged above the sheet feeding table. By means of these elements the sheet can move as it is withdrawn from the sheet feed table be better managed.
  • the devices mentioned also partially serve to to lift the arch from the conveyor table so that the following arch is better connected to the Front and side registration marks can be listed.
  • DE 739 377 C which corresponds to the preamble of claim 1, describes a method for aligning and fitting Applying sheets to rotating cylinders, in particular printing machines known.
  • the device described has one in the area of the sheet feeder Printing machine conveyor elements in the form of suction rolls above one Landing table on. The suction rolls grip the sheet in a raised position and convey it to the printing press.
  • the object of the invention is a device according to the preamble of the claim 1 so that the sheet over its entire width at Transfer from a feeder e.g. a sheet feed table into the machine kept smooth according to the operating needs and exactly the machine can be fed in such a way that its influence on the subsequent sheet is eliminated becomes.
  • a feeder e.g. a sheet feed table into the machine kept smooth according to the operating needs and exactly the machine can be fed in such a way that its influence on the subsequent sheet is eliminated becomes.
  • the solution to this problem is based on the characterizing part of the patent claim 1.
  • the different solution variants offer one To provide guide device extending over the entire sheet width. This can operate on different substrate thicknesses through different modes of operation and types of substrates can be set. Here is a simple Remote control possible.
  • the device is easy to Can be upgraded to clean the sheets to be fed.
  • the device also take over the function of protection against foreign bodies or the Serve to remove dust from the substrate.
  • Fig. 1 is the overview of the investment area of a sheet processing Machine shown.
  • a shingled arch flow that is on guided a sheet feed table 1 is not shown.
  • a bow B is indicated as having just been removed.
  • the sheets are placed over the sheet feed table 1 led against front marks 2.
  • These front marks 2 align the Sheets so that they are from a transfer device, e.g. a forerunner a plant drum 3 only indicated here can be performed. From there they are then in a first printing unit or a processing device transferred.
  • a side alignment mark 4 provided that aligns the sheet B in its lateral position when it is on the front marks 2 abuts.
  • a blowing device in the sheet guide table 1 5 provided in a known manner with the help of the blowing suction effect aligns the sheets with the front marks 2 and holds them there.
  • a suction traverse 6 is arranged above of the sheet guide table 1.
  • the suction traverse 6 consists of a hollow body that extends across the entire width of the sheet feed table 1 is enough.
  • the suction traverse 6 is as Square tube designed and with a side edge close to the sheet guide table 1 arranged. In the area of this side edge are suction openings 7 in the Suction cross member 6 provided.
  • the suction crossbar is superimposed on a contour that is conventional for the Guide the sheet B used guide rollers 11 represents.
  • These leadership roles 11 hold the sheet B down against the sheet guide table 1 and pull it can be recognized by the edge of the front marks 2.
  • Further guide rollers 12 are arranged on the front marks 2 and there lead the sheet B.
  • the suction traverse 6 holds the sheet only with its suction surface in the raised state a little above the following sheet so that the one to be removed Arch B can stretch and be guided straight and level.
  • the sheet is just as far from its guide surface on the sheet guide table 1 or the subsequent sheet lying on it, so that this follow-up sheet without adhering to sheet B against the front marks 2 can be.
  • the embodiment of the suction traverse 6 is shown in more detail in Figure 2.
  • the underside of the suction traverse 6 is provided with a guide surface 10 which extends from the suction openings 7 against the direction of sheet travel.
  • An air connection 13 is attached to the top of the suction traverse 6 with respect to FIG the longitudinal extent of the suction traverse 6 is arranged centrally. Distributed through this the air to both sides of the suction traverse 6, ie. also across the width of the Machine evenly, so that the sheet B even over the entire width is held.
  • a suction air flow passed through the suction traverse 6, so that the sheet B against the suction openings 7 is sucked.
  • a blown air stream can emerge through the openings 7, which on the Top of the sheet to be fed acts when the sheet to be processed do not tend to stick together.
  • This blown air flow can only be intermittent are used to keep the suction openings 7 free of contamination.
  • the suction openings 7 as blowing nozzles the so-called blow-suction effect can be used.
  • they are Arrange blow nozzles in such a way that they are at an oblique angle from the traverse 6 blow out against the sheet running direction of sheet B and in doing so Generate a vacuum near their outflow opening.
  • the bow B on the one hand streaked in the direction of its end on the sheet guide table 1 and also sucked against the cross member 6 at the same time.
  • Fig. 3 a variant of the device according to the invention is shown, which as Suction cross member 8 can be seen.
  • the cross section is triangular and the sheet guiding surface 10 is arranged horizontally.
  • Openings 9 indicated.
  • the air distribution or pressure distribution within the crossbar 8 is symmetrical.
  • the space above the arch system is then free of air supply.
  • This traverse 8 can also with blown air or Suction air can be operated.
  • the openings 9 as so-called Blow-suction nozzles are executed.
  • suction crossmember 6, 8 as a so-called Vacuum cleaner brush is formed.
  • suction crossmember 6, 8 brush-like elements are attached, which are the to be processed Strip sheet B before entering the machine.
  • Suction traverse 6, 8 to operate with suction air, so that of the incoming Bow stripped dust can be vacuumed.
  • openings 7, 9 are large enough to hold the dust particles to be able to vacuum safely.
  • the suction traverses 6, 8 are attached laterally in such a way that their height is above of the sheet guide table 1 are adjustable. This is required in order to To ensure function even with sheets of different thickness. In the same It is possible to make the attachment controllable in such a way that the Suction cross member 6, 8 clocked raised and lowered. It can the sliding surface 14 leading the sheet B both parallel and around a small one Angle swiveling to optimally guide the arch B when pulling off respectively.
  • sheets B are influenced as follows:
  • a sheet B arrives at the front marks 2 and is there and by means of the side mark 4 aligned. Then he is attacked by a predecessor or another Accelerator detected and deducted. By acceleration there is a retroactive effect on the following sheet. Therefore, when the follow-up sheet The suction air or Blown air on the suction traverse 6, 8 switched on. The bow B is now in the area sucked about its second half in the direction of travel against the suction traverse 6, 8 and thus lifted off from the following sheet. At the same time, the bow B with a holding force against the sheet running direction kept taut and spread. At the At the end of arc B, the suction air is switched off again or by a Blown air blast reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Advancing Webs (AREA)

Abstract

The height and breadth-adjustable rigid, hollow cross-arm (6) is positioned near the front lay-marks (2) above the sheet-guide table (1). The cross-arm's underside has openings pointing towards the guide surface of the sheet-guide table. Suction air or blown air is supplied to the cross-arm through an air-connection. The lower edge of the rectangular or triangular-sectioned cross-arm has a sloping slide surface parallel with the sheet-guide table.

Description

Die Erfindung betrifft eine Vorrichtung zur Führung von bogenförmigen Bedruckstoffen zu bogenverarbeitenden Maschinen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device for guiding sheet-shaped printing materials to sheet-processing machines according to the preamble of the claim 1.

Zur Zufuhr von Bogen in bogenverarbeitenden Maschinen, insbesondere an Druckmaschinen, wird der Bedruckstoff etc. von einem Stapel vereinzelt und in der Regel in unterschuppter Form der Druckmaschine oder anderen bogenverarbeitenden Maschine zugeführt. Bei der Übergabe aus der Bogenschuppe an die Transporteinrichtungen der jeweiligen Maschine kann es dazu kommen, daß der abzuziehende und beschleunigte Bogen die zurückbleibenden und neu auszurichtenden Bogen beeinflußt. Daher wurden bereits Mittel vorgesehen um die Bogen im Bereich der sogenannten Bogenanlage zu beruhigen bzw. zu beeinflussen im allgemeinen.For feeding sheets in sheet-processing machines, especially on Printing machines, the printing material etc. is separated from a stack and in usually in shingled form of the printing press or other sheet processing Machine fed. When handing over from the arches to Transport equipment of the respective machine can cause the peelable and accelerated sheets the remaining and new aligned bow influenced. Therefore, funds have already been earmarked for to calm or influence the bows in the area of the so-called bow system in general.

Aus der US-PS 2 160 906 ist eine Vorrichtung zur Bogenzufuhr und zum Ausrichten bekannt. Sie weist verschiedene Hilfsmittel im Bereich der Bogenanlage auf, die dazu dienen die unterschuppt ankommenden Bogen sicher voneinander zu trennen, abzufördern und gleichzeitig die neu ankommenden sicher ausrichten zu können. Dabei werden unter anderem Deckelemente anschmiegbar oberhalb des Bogenfördertisches angeordnet. In einer alternativen Anordnung werden Saugwalzen oberhalb des Bogenfördertisches angeordnet. Mittels dieser Elemente kann der Bogen in seiner Bewegung beim Abzug von dem Bogenfördertisch besser geführt werden. Die genannten Vorrichtungen dienen auch teilweise dazu, den Bogen vom Fördertisch abzuheben damit der folgende Bogen besser an die Vor- und Seitenausrichtmarken angeführt werden kann. From US-PS 2 160 906 is a device for sheet feeding and alignment known. It has various aids in the area of the arch system, which are used to safely secure the incoming shingled sheets separate, remove and at the same time safely align the newly arriving ones can. Among other things, cover elements are nestled above the Sheet conveyor table arranged. In an alternative arrangement, suction rolls arranged above the sheet feeding table. By means of these elements the sheet can move as it is withdrawn from the sheet feed table be better managed. The devices mentioned also partially serve to to lift the arch from the conveyor table so that the following arch is better connected to the Front and side registration marks can be listed.

Aus der DE 739 377 C, die dem Oberbegriff des Anspruchs 1 entspricht, ist ein Verfahren zum passgerechten Ausrichten und Anlegen von Bogen an umlaufende Zylinder, insbesondere von Druckmaschinen bekannt. Die beschriebene Vorrichtung weist im Bereich der Bogenanlage einer Druckmaschine Förderelemente in Form von Saugwalzen oberhalb eines Anlegetisches auf. Die Saugwalzen erfassen den Bogen in angehobener Lage und fördern ihn der Druckmaschine zu.DE 739 377 C, which corresponds to the preamble of claim 1, describes a method for aligning and fitting Applying sheets to rotating cylinders, in particular printing machines known. The device described has one in the area of the sheet feeder Printing machine conveyor elements in the form of suction rolls above one Landing table on. The suction rolls grip the sheet in a raised position and convey it to the printing press.

Weiterhin sind im Bereich von Bogenanlagen an bogenverarbeitenden Maschinen Vorrichtungen zur Abhaltung von Fremdkörpern bekannt. Diese sind beispielsweise als auf dem Bogenstrom aufliegenden Rollen oder als starre Schienen dicht oberhalb der Bogenzuführung ausgeführt, dergestalt, daß keine Fremdkörper mit in die Druckmaschine eingeführt werden.Also in the area of sheetfed systems on sheet-processing machines Devices for holding foreign objects are known. These are, for example as rolls lying on the sheet stream or tight as rigid rails executed above the sheet feeder, such that no foreign objects with be inserted into the press.

Mit all diesen bekannten Mitteln ist es nicht möglich, einen von dem Bogenzuführtisch abzuziehenden Bogen ruhig zu führen und einen je nach Bedruckstoffart, Format oder Maschinengeschwindigkeit unabhängigen Einfluß auf den Bogen zu nehmen, so daß dieser ruhig in die Maschine geführt wird.With all these known means it is not possible to get one from the sheet feeding table pull the sheet to be peeled off calmly and depending on the type of substrate, Format or machine speed independent influence on the sheet too take so that it is guided quietly into the machine.

Aufgabe der Erfindung ist es, eine Vorrichtung nach dem Oberbegriff des Patentanspruches 1 so weiterzubilden, daß der Bogen auf seiner ganzen Breite bei der Überführung von einer Zuführeinrichtung z.B. einem Bogenzuführtisch in die Maschine den Betriebsbedürfnissen entsprechend glatt gehalten und exakt der Maschine zugeführt werden kann, derart, daß sein Einfluß auf den Folgebogen beseitigt wird.The object of the invention is a device according to the preamble of the claim 1 so that the sheet over its entire width at Transfer from a feeder e.g. a sheet feed table into the machine kept smooth according to the operating needs and exactly the machine can be fed in such a way that its influence on the subsequent sheet is eliminated becomes.

Die Lösung dieser Aufgabe gestaltet sich nach dem Kennzeichen des Patentanspruches 1. Durch die verschiedenen Lösungsvarianten wird angeboten, eine über die gesamte Bogenbreite reichende Führungseinrichtung vorzusehen. Diese kann durch unterschiedliche Betriebsweisen auf verschiedene Bedruckstoffstärken und Bedruckstoffarten eingestellt werden. Hierbei ist auf einfache Weise eine Fernsteuerung möglich. Außerdem ist die Vorrichtung auf einfache Weise zum Reinigen der zuzuführenden Bogen aufrüstbar. Weiterhin kann die Vorrichtung auch noch die Funktion des Schutzes gegen Fremdkörper übernehmen oder der Beseitigung von Staub vom Bedruckstoff dienen.The solution to this problem is based on the characterizing part of the patent claim 1. The different solution variants offer one To provide guide device extending over the entire sheet width. This can operate on different substrate thicknesses through different modes of operation and types of substrates can be set. Here is a simple Remote control possible. In addition, the device is easy to Can be upgraded to clean the sheets to be fed. Furthermore, the device also take over the function of protection against foreign bodies or the Serve to remove dust from the substrate.

Die Erfindung wird im folgenden anhand von Zeichnungen näher dargestellt. The invention is illustrated below with reference to drawings.

Hierbei zeigt:

Fig. 1
eine Übersicht über den Anlagebereich,
Fig. 2
eine erste Variante der erfindungsgemäßen Vorrichtung und
Fig. 3
eine zweite Variante einer erfindungsgemäßen Vorrichtung.
Here shows:
Fig. 1
an overview of the investment area,
Fig. 2
a first variant of the device according to the invention and
Fig. 3
a second variant of a device according to the invention.

In Fig. 1 ist die Übersicht über den Anlagebereich einer bogenverarbeitenden Maschine gezeigt. Hierbei ist ein unterschuppt ausgebildeter Bogenstrom, der auf einem Bogenzuführtisch 1 geführt ist nicht näher dargestellt. Lediglich ein Bogen B ist als gerade abtransportiert angedeutet. Die Bogen werden über den Bogenzuführtisch 1 gegen Vordermarken 2 geführt. Diese Vordermarken 2 richten die Bogen so aus, daß sie von einer Übergabevorrichtung, z.B. einem Vorgreifer, auf eine hier nur angedeutete Anlagetrommel 3 geführt werden kann. Von dort werden sie dann in ein erstes Druckwerk oder eine Verarbeitungseinrichtung überführt. Im Bereich des Bogenzuführtisches 1 ist eine Seitenausrichtmarke 4 vorgesehen, die den Bogen B in seiner seitlichen Lage ausrichtet, wenn dieser an den Vordermarken 2 anliegt. Weiterhin ist im Bogenführungstisch 1 eine Blasvorrichtung 5 vorgesehen, die in bekannter Weise mit Hilfe des Blas-Sog-Effektes die Bogen an den Vordermarken 2 ausrichtet und sie dort in Anlage hält. Oberhalb des Bogenführungstisches 1 ist eine Saugtraverse 6 angeordnet. Die Saugtraverse 6 besteht aus einem Hohlkörper, der über die gesamte Breite des Bogenzuführtisches 1 reicht. Im dargestellten Fall ist die Saugtraverse 6 als Vierkantrohr ausgebildet und mit einer Seitenkante nahe an dem Bogenführungstisch 1 angeordnet. Im Bereich dieser Seitenkante sind Saugöffnungen 7 in der Saugtraverse 6 vorgesehen.In Fig. 1 is the overview of the investment area of a sheet processing Machine shown. Here is a shingled arch flow that is on guided a sheet feed table 1 is not shown. Just a bow B is indicated as having just been removed. The sheets are placed over the sheet feed table 1 led against front marks 2. These front marks 2 align the Sheets so that they are from a transfer device, e.g. a forerunner a plant drum 3 only indicated here can be performed. From there they are then in a first printing unit or a processing device transferred. In the area of the sheet feeding table 1 is a side alignment mark 4 provided that aligns the sheet B in its lateral position when it is on the front marks 2 abuts. Furthermore, there is a blowing device in the sheet guide table 1 5 provided in a known manner with the help of the blowing suction effect aligns the sheets with the front marks 2 and holds them there. Above of the sheet guide table 1, a suction traverse 6 is arranged. The suction traverse 6 consists of a hollow body that extends across the entire width of the sheet feed table 1 is enough. In the case shown, the suction traverse 6 is as Square tube designed and with a side edge close to the sheet guide table 1 arranged. In the area of this side edge are suction openings 7 in the Suction cross member 6 provided.

Erkennbar ist der Saugtraverse eine Kontur überlagert, die konventionell für die Führung der Bogen B benutzte Führungsrollen 11 darstellt. Diese Führungsrollen 11 halten den Bogen B nach unten gegen den Bogenführungstisch 1 und ziehen ihn erkennbar über die Kante der Vordermarken 2. Weitere Führungsrollen 12 sind an den Vordermarken 2 angeordnet und führen dort den Bogen B. Recognizable, the suction crossbar is superimposed on a contour that is conventional for the Guide the sheet B used guide rollers 11 represents. These leadership roles 11 hold the sheet B down against the sheet guide table 1 and pull it can be recognized by the edge of the front marks 2. Further guide rollers 12 are arranged on the front marks 2 and there lead the sheet B.

Im Gegensatz dazu hält die Saugtraverse 6 den Bogen nur mit ihrer Saugfläche im angehobenen Zustand wenig oberhalb dem Folgebogen fest, so daß der abzuziehende Bogen B sich strecken und gerade und eben geführt werden kann. Dabei wird der Bogen gerade soweit von seiner Führungsfläche auf dem Bogenführungstisch 1 bzw. dem darauf liegenden Folgebogen abgehoben, so daß dieser Folgebogen ohne am Bogen B anzuhaften gegen die Vordermarken 2 geführt werden kann.In contrast, the suction traverse 6 holds the sheet only with its suction surface in the raised state a little above the following sheet so that the one to be removed Arch B can stretch and be guided straight and level. The sheet is just as far from its guide surface on the sheet guide table 1 or the subsequent sheet lying on it, so that this follow-up sheet without adhering to sheet B against the front marks 2 can be.

Die Ausführungsform der Saugtraverse 6 ist in Figur 2 näher dargestellt. Hierbei ist die Unterseite der Saugtraverse 6 mit einer Führungsfläche 10 versehen, die sich gegen die Bogenlaufrichtung von den Saugöffnungen 7 aus erstreckt. Auf der Oberseite der Saugtraverse 6 ist ein Luftanschluß 13 angebracht der in Bezug auf die Längsausdehnung der Saugtraverse 6 mittig angeordnet ist. Dadurch verteilt sich die Luft nach beiden Seiten der Saugtraverse 6, dh. auch über die Breite der Maschine gleichmäßig, so daß der Bogen B auch über die ganze Breite gleichmäßig gehalten wird. In der gewählten Ausführungsform wird ein Saugluftstrom durch die Saugtraverse 6 geleitet, so daß der Bogen B gegen die Saugöffnungen 7 gesaugt wird. Diese sind in einem Anschliff der Unterkante der Saugtraverse 6 eingebracht, sodaß dort eine nur schmale Gleitfläche 14 neben den Saugöffnungen 7 entsteht. Diese schmale Gleitfläche 14 ist gegenüber der Bogenführungsfläche 10 in einem kleinen Winkel angeordnet. Die Saugtraverse 6 wird im gleichen Winkel gekippt oberhalb des Bogenführungstisches 1 angeordnet, sodaß die Gleitfläche 14 im wesentlichen parallel zum Bogenführungstisch 1 steht. Hier kann auch eine leichte Steigung in Bogenlaufrichtung angebracht sein.The embodiment of the suction traverse 6 is shown in more detail in Figure 2. Here the underside of the suction traverse 6 is provided with a guide surface 10 which extends from the suction openings 7 against the direction of sheet travel. On the An air connection 13 is attached to the top of the suction traverse 6 with respect to FIG the longitudinal extent of the suction traverse 6 is arranged centrally. Distributed through this the air to both sides of the suction traverse 6, ie. also across the width of the Machine evenly, so that the sheet B even over the entire width is held. In the chosen embodiment, a suction air flow passed through the suction traverse 6, so that the sheet B against the suction openings 7 is sucked. These are ground in the lower edge of the suction traverse 6 introduced so that there is only a narrow sliding surface 14 next to the suction openings 7 arises. This narrow sliding surface 14 is opposite the sheet guiding surface 10 arranged at a small angle. The suction traverse 6 is in the same angle tilted above the sheet guide table 1 so that the sliding surface 14 is substantially parallel to the sheet guide table 1. A slight slope in the direction of sheet travel can also be applied here.

Gleichfalls kann durch die Öffnungen 7 ein Blasluftstrom austreten, der auf die Oberseite des zu führenden Bogens wirkt, wenn die zu verarbeitenden Bogen nicht zum Aneinanderhaften neigen. Dieser Blasluftstrom kann auch nur stoßweise eingesetzt werden, um die Saugöffnungen 7 von Verunreinigungen freizuhalten. Likewise, a blown air stream can emerge through the openings 7, which on the Top of the sheet to be fed acts when the sheet to be processed do not tend to stick together. This blown air flow can only be intermittent are used to keep the suction openings 7 free of contamination.

Weiterhin kann durch eine spezielle Anordnung der Saugöffnungen 7 als Blasdüsen der sogenannte Blas-Sog-Effekt genutzt werden. In diesem Fall sind die Blasdüsen in der Weise anzuordnen, daß sie in schrägem Winkel aus der Traverse 6 gegen die Bogenlaufrichtung der Bogen B ausblasen und dabei in der Nähe ihrer Ausströmöffnung einen Unterdruck erzeugen. Damit wird der Bogen B einerseits in der Richtung seines Endes auf dem Bogenführungstisch 1 ausgestrichen und auch gleichzeitig gegen die Traverse 6 angesaugt.Furthermore, through a special arrangement of the suction openings 7 as blowing nozzles the so-called blow-suction effect can be used. In this case they are Arrange blow nozzles in such a way that they are at an oblique angle from the traverse 6 blow out against the sheet running direction of sheet B and in doing so Generate a vacuum near their outflow opening. The bow B on the one hand streaked in the direction of its end on the sheet guide table 1 and also sucked against the cross member 6 at the same time.

In Fig. 3 ist eine Variante der erfindungsgemäßen Vorrichtung gezeigt, die als Saugtraverse 8 zu sehen ist. Hierbei ist der Querschnitt dreieckig und die Bogenführungsfläche 10 ist horizontal angeordnet. In der Bogenführungsfläche 10 sind Öffnungen 9 angedeutet. Weiterhin ist an dieser Traverse 8 beiderseits, dh. an beiden Enden neben dem Bogenführungstisch 1 ein Luftanschluß vorhanden, damit die Luftverteilung beziehungsweise Druckverteilung innerhalb der Traverse 8 symmetrisch ist. Außerdem ist der Bauraum oberhalb der Bogenanlage dann frei von Luftzuführungen. Diese Traverse 8 kann ebenfalls mit Blasluft oder Saugluft betrieben werden. Gleichfalls können die Öffnungen 9 als sogenannte Blas-Sog-Düsen ausgeführt werden.In Fig. 3 a variant of the device according to the invention is shown, which as Suction cross member 8 can be seen. Here the cross section is triangular and the sheet guiding surface 10 is arranged horizontally. In the sheet guide surface 10 are Openings 9 indicated. Furthermore, on this traverse 8 on both sides, ie. on an air connection is provided at both ends next to the sheet guide table 1, thus the air distribution or pressure distribution within the crossbar 8 is symmetrical. In addition, the space above the arch system is then free of air supply. This traverse 8 can also with blown air or Suction air can be operated. Likewise, the openings 9 as so-called Blow-suction nozzles are executed.

Eine Ergänzung zur verbesserten Funktion der Bogenzufuhr und der bogenverarbeitenden Maschine ist darin zu sehen, daß die Saugtraverse 6, 8 als sogenannte Staubsaugerbürste ausgebildet wird. Darunter ist zu verstehen, daß an der Saugtraverse 6, 8 bürstenähnliche Elemente angebracht werden, die die zu verarbeitenden Bogen B vor dem Einlauf in die Maschine abstreifen. In diesem Fall ist die Saugtraverse 6, 8 mit Saugluft zu betreiben, damit der von den einlaufenden Bogen abgestreifte Staub abgesaugt werden kann. Ebenso ist in diesem Fall zu sorgen, daß die Öffnungen 7, 9 ausreichend groß sind, um die Staubpartikel sicher aufsaugen zu können.A supplement to the improved function of the sheet feeder and the sheet processing Machine can be seen in that the suction crossmember 6, 8 as a so-called Vacuum cleaner brush is formed. This is understood to mean that on the suction crossmember 6, 8 brush-like elements are attached, which are the to be processed Strip sheet B before entering the machine. In this case it is Suction traverse 6, 8 to operate with suction air, so that of the incoming Bow stripped dust can be vacuumed. Likewise in this case too ensure that the openings 7, 9 are large enough to hold the dust particles to be able to vacuum safely.

Die Saugtraversen 6, 8 sind seitlich befestigt, derart, daß sie in ihrer Höhe oberhalb des Bogenführungstisches 1 einstellbar sind. Dies ist erforderlich, um die Funktion auch bei Bogen unterschiedlicher Dicke zu gewährleisten. In gleicher Weise ist es möglich die Befestigung steuerbar zum machen, derart, daß die Saugtraverse 6, 8 getaktet angehoben und abgesenkt werden kann. Dabei kann die den Bogen B führende Gleitfläche 14 sowohl parallel als auch um einen kleinen Winkel schwenkend geführt werden, um den Bogen B beim Abziehen optimal zu führen.The suction traverses 6, 8 are attached laterally in such a way that their height is above of the sheet guide table 1 are adjustable. This is required in order to To ensure function even with sheets of different thickness. In the same It is possible to make the attachment controllable in such a way that the Suction cross member 6, 8 clocked raised and lowered. It can the sliding surface 14 leading the sheet B both parallel and around a small one Angle swiveling to optimally guide the arch B when pulling off respectively.

Im Betrieb der bogenverarbeitenden Maschine werden die Bogen B wie folgt beeinflußt:When operating the sheet processing machine, sheets B are influenced as follows:

Ein Bogen B kommt an den Vordermarken 2 an und wird dort und mittels der Seitenmarke 4 ausgerichtet. Dann wird er von einem Vorgreifer oder einer anderen Beschleunigungsvorrichtung erfaßt und abgezogen. Durch die Beschleunigung entsteht eine Rückwirkung auf den Folgebogen. Daher wird dann, wenn der Folgebogen in den Bereich der Ausrichtvorrichtungen kommt die Saugluft bzw. Blasluft an der Saugtraverse 6, 8 eingeschaltet. Der Bogen B wird nun im Bereich etwa seiner zweiten Hälfte in Laufrichtung gegen die Saugtraverse 6, 8 angesaugt und damit von dem Folgebogen abgehoben. Gleichzeitig wird der Bogen B mit einer Haltekraft gegen die Bogenlaufrichtung straff und ausgebreitet gehalten. Am Ende des Bogens B wird die Saugluft wieder abgeschaltet oder durch einen Blasluftstoß abgebaut.A sheet B arrives at the front marks 2 and is there and by means of the side mark 4 aligned. Then he is attacked by a predecessor or another Accelerator detected and deducted. By acceleration there is a retroactive effect on the following sheet. Therefore, when the follow-up sheet The suction air or Blown air on the suction traverse 6, 8 switched on. The bow B is now in the area sucked about its second half in the direction of travel against the suction traverse 6, 8 and thus lifted off from the following sheet. At the same time, the bow B with a holding force against the sheet running direction kept taut and spread. At the At the end of arc B, the suction air is switched off again or by a Blown air blast reduced.

Claims (10)

  1. Device for guiding a sheet (B) in the region of the sheet feeding of a sheet processing machine with guide elements which can be subjected to air arranged above a sheet feeding table (1),
    characterised in that in the region prior to front lays (2), a suction cross-member (6, 8) rigid in itself is arranged extending across the entire width of the sheet guiding table (1), that the suction cross-member (6, 8) is constructed as a hollow body and is provided at its underside with openings (7, 9) directed essentially against the guide surface of the sheet feeding table (1), wherein the suction cross-member (6, 8) remains aligned essentially with the openings (7, 9) directed downwardly and that the suction cross-member (6, 8) is provided with a pneumatic connection (13) for suction and blown air.
  2. Device according to Claim 1, characterised in that the suction cross-member is a rectangular hollow body (6) of which one lower edge is chamfered as a guide surface (14) and which is provided essentially across the entire width with openings (7).
  3. Device according to Claim 2, characterised in that the suction cross-member (6) is arranged inclined and its lower surface is constructed as sheet guiding surface (10) rising counter to the sheet running direction, wherein the guide surface (14) of the chamfered edge is arranged essentially parallel to the sheet guiding table (1).
  4. Device according to Claim 1, characterised in that the suction cross-member is a triangular hollow body (8), the underside of which is constructed as a sheet guiding surface (10) and is provided with openings (9).
  5. Device according to one of Claims 1 to 4, characterised in that the suction cross-member (6, 8) is adjustable in its height position.
  6. Device according to one of Claims 1 to 5, characterised in that the suction cross-member (6, 8) is supplied with suction or in switchable over fashion with blown air.
  7. Device according to Claim 6, characterised in that the suction cross-member (6, 8) is supplied with blown air and the openings (7, 9) are constructed as blowing-suction nozzles blowing obliquely counter to the sheet running direction.
  8. Device according to one of Claims 1 to 6, characterised in that the suction cross-member (6, 8) is driven with suction and is provided rhythmically between sheets (B) to be forwarded with an impulse of compressed air.
  9. Device according to one of Claims 1 to 6, characterised in that the suction cross-member (6, 8) is constructed as a dust sucker brush.
  10. Device according to one of Claims 1 to 6, characterised in that the suction cross-member (6, 8) is movable in the rhythm of the sheet sucking on parallel or at a slight angle away from the sheet guiding table (1).
EP97112389A 1996-08-02 1997-07-18 Device for feeding sheets to a printing machine Expired - Lifetime EP0822154B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631175 1996-08-02
DE19631175A DE19631175C1 (en) 1996-08-02 1996-08-02 Device for feeding sheets to a printing press

Publications (3)

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EP0822154A2 EP0822154A2 (en) 1998-02-04
EP0822154A3 EP0822154A3 (en) 1998-10-07
EP0822154B1 true EP0822154B1 (en) 2000-05-10

Family

ID=7801556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112389A Expired - Lifetime EP0822154B1 (en) 1996-08-02 1997-07-18 Device for feeding sheets to a printing machine

Country Status (4)

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EP (1) EP0822154B1 (en)
JP (1) JP2944965B2 (en)
AT (1) ATE192719T1 (en)
DE (2) DE19631175C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240734B4 (en) * 2001-08-31 2007-03-29 LTG Mailänder GmbH & Co. KG Method and apparatus for preventing damage or entanglement of tabular sheets
DE102004036875A1 (en) * 2004-07-29 2006-02-16 Koenig & Bauer Ag Sheet guiding device in a sheet system
DE102005001375A1 (en) * 2005-01-12 2006-07-20 Man Roland Druckmaschinen Ag guide
DE102008032684B4 (en) 2008-07-04 2023-07-20 Kba-Metalprint Gmbh Sheet metal suction device for transporting sheet metal into a metal printing machine or sheet metal painting machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE519519C (en) * 1931-02-28 Kleim & Ungerer Feed or feed table for high-speed presses, rotary printing machines, two-round machines, gravure and rubber printing machines and folding machines
US2160906A (en) * 1936-01-23 1939-06-06 Faber & Schleicher A G Sheet feeding and registering device
DE739377C (en) * 1938-05-20 1943-09-25 Planeta Druckmaschinenwerk Ag Process for the correct alignment and application of sheets to rotating cylinders, in particular of printing machines
JPS638161A (en) * 1986-06-24 1988-01-13 Canon Inc Holding method for recording sheet

Also Published As

Publication number Publication date
EP0822154A3 (en) 1998-10-07
JP2944965B2 (en) 1999-09-06
DE59701627D1 (en) 2000-06-15
DE19631175C1 (en) 1998-01-29
ATE192719T1 (en) 2000-05-15
JPH1076633A (en) 1998-03-24
EP0822154A2 (en) 1998-02-04

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