EP1681253B1 - Guiding device - Google Patents

Guiding device Download PDF

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Publication number
EP1681253B1
EP1681253B1 EP06000048A EP06000048A EP1681253B1 EP 1681253 B1 EP1681253 B1 EP 1681253B1 EP 06000048 A EP06000048 A EP 06000048A EP 06000048 A EP06000048 A EP 06000048A EP 1681253 B1 EP1681253 B1 EP 1681253B1
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EP
European Patent Office
Prior art keywords
hold
guiding device
feed table
sheet
drive
Prior art date
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Not-in-force
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EP06000048A
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German (de)
French (fr)
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EP1681253A1 (en
Inventor
Georg Herzan
Harald Lang
Bernhard Dr. Neisius
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Manroland AG
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Manroland AG
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Publication of EP1681253A1 publication Critical patent/EP1681253A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00Registering, e.g. orientating, articles; Devices therefor
    • B65H9/08Holding devices, e.g. finger, needle, suction, for retaining articles in registered position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36Article guides or smoothers, e.g. movable in operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00Power transmission; Driving means
    • B65H2403/50Driving mechanisms
    • B65H2403/51Cam mechanisms
    • B65H2403/514Cam mechanisms involving eccentric

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The guiding device for the cycled feed of sheets (2) in a feed direction in the region of a sheet feeder on a feed board (1) of especially a printing press has a front lay mark (3) for the alignment of the leading edge of the leading sheet of a sheet stream, and a hold-down device (5) which in the cycle of the feeding sheets can be lifted and lowered in relation to the feed board. The hold-down device is driven to move from its raised position into its lowered position on a movement path opposite to the direction (4) of sheet feed and approaching the feed board.

Description

Die Erfindung bezieht sich auf eine Leitvorrichtung zur taktmäßigen Bogenzufuhr in Förderrichtung im Bereich einer Bogenanlage an einem Anlegetisch einer Bogen verarbeitenden Maschine, insbesondere einer Druckmaschine, mit einer Vorder- und/oder Deckmarke zum Ausrichten der Vorderkante des jeweils vordersten Bogens eines insbesondere unterschuppten Bogenstroms und mit einer sich parallel quer über den Anlegetisch im Bereich der Vorder- und/oder Deckmarke erstreckenden Niederhaltevorrichtung, die im Takt der zu fördernden Bogen gegenüber dem Anlegetisch heb- und senkbar antreibbar ist.The invention relates to a guide device for the tactual sheet feed in the conveying direction in the area of a sheet feeder on a feed table of a sheet-processing machine, in particular a printing press, with a front and / or top mark for aligning the leading edge of the respective foremost sheet of a particular unterschuppten sheet flow and a holding device extending parallel across the feed table in the region of the front and / or top mark, which can be raised and lowered in time with the sheet to be conveyed relative to the feed table.

Derartige Leitvorrichtungen kommen im Bereich einer Bogenanlage einer Bogen verarbeitenden Maschine zum Einsatz, wobei die Bogen im Bereich eines Anlegetischs beispielsweise von Bogenrotationsdruckmaschinen an Vorder- und Deckmarken vorausgerichtet werden, bevor eine Überführung in die Bogenrotationsmaschine erfolgt.Such guide devices are used in the area of a sheet feeder of a sheet-processing machine, wherein the sheets are pre-aligned in the area of a feed table, for example, from sheet-fed rotary printing machines to front and top brands before a transfer takes place in the sheet-fed rotary machine.

Durch die Niederhaltevorrichtung werden die insbesondere unterschuppt ankommenden Bogen so flach auf dem Anlegetisch gehalten, daß sie sicher unter die Deckmarken und gegen die Vordermarken zur Anlage gebracht werden. Damit nach der Vorausrichtung der ablaufende Bogen den auf dem Anlegetisch nachfolgend einlaufende Bogen nicht mitreißt und so dessen Ausrichtung stört oder verhindert oder die Hinterkante des ablaufenden Bogens hochschlägt, was zu einer Beschädigung des Bogens bei Berührung mit Förderelementen führen kann, ist es bekannt die Niederhaltevorrichtung heb- und senkbar anzutreiben.By holding down the particular undershoot incoming sheets are kept so flat on the feed table that they are safely placed under the top brands and against the front marks to the plant. Thus, after the pre-registration of the expiring sheet not entraining the on the feed table incoming sheet and so disturbs its orientation or prevents or the trailing edge of the expiring sheet hitting, which can lead to damage of the sheet in contact with conveying elements, it is known the hold down heb - and lowerable drive.

Um diese Nachteile wirksam zu vermeiden ist ein großer vertikaler Verstellweg erforderlich, der zu einer großen Bauhöhe der Leitvorrichtung führt.In order to effectively avoid these disadvantages, a large vertical displacement is required, which leads to a large height of the guide.

Aufgabe der,Erfindung ist es eine Leitvorrichtung der eingangs genannten Art zu schaffen, die bei einfachem Aufbau eine geringe Bauhöhe aufweist und die Niederhaltevorrichtung bei ihrem Anheben so weit von den insbesondere steifen Bogen entfernt, daß diese nicht beschädigt werden.The object of the invention is to provide a guide device of the type mentioned, which has a low height with a simple structure and the hold-down device so far removed from the particular stiff bow when lifting that they are not damaged.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Niederhaltevorrichtung auf einem sich entgegen der Förderrichtung der Bogen dem Anlegetisch annähernden Bewegungsweg aus ihrer angehobenen Stellung in ihre abgesenkte Stellung und umgekehrt bewegbar antreibbar ist.This object is achieved in that the hold-down device on a counter to the conveying direction of the sheet approach table approaching movement from its raised position to its lowered position and vice versa is movable driven.

Da sich durch diese Ausbildung die Niederhaltevorrichtung zwar sehr weit weg von dem Bogen bewegt, dieser Bewegungsweg aber eine große Horizontalkomponenten aufweist, ist keine große Bauhöhe der Leitvorrichtung erforderlich.Since this training the hold-down device moves very far away from the arc, but this movement path has a large horizontal components, no large height of the guide is required.

Durch das von der Niederhaltevorrichtung unbeeinflußte freie Ablaufen der Bogen erfolgt keine negative Beeinflussung der nachfolgenden Bogen und kein Hochschlagen der Hinterkante der ablaufenden Bogen.By the uninfluenced by the hold-free free running of the sheet is no negative effect on the subsequent sheet and no beating up the trailing edge of the expiring bow.

Beschädigungen insbesondere an empfindlichen Bogen durch zu starkes Ziehen über die zurückkehrenden Deck- und Vordermarken werden sicher vermieden.Damage, especially to sensitive sheets due to excessive pulling over the returning cover and front marks, is reliably avoided.

Damit die Niederhaltevorrichtung sicher schnell in ihre angehobene Lage gelangt, kann die Niederhaltevorrichtung auf ihrem sich dem Anlegetisch annähernden Bewegungsweg mit einer geringeren Geschwindigkeit antreibbar sein als auf dem sich von dem Anlegetisch entfernenden Bewegungsweg oder es kann die Niederhaltevorrichtung auf ihrem sich dem Anlegtisch annähernden Bewegungsweg mit einer sich verringernden Geschwindigkeit und auf dem sich von dem Anlegetisch entfernenden Bewegungsweg mit einer sich vergrößernden Geschwindigkeit bewegbar antreibbar sein.Thus, the hold-down safely arrives quickly in its raised position, the hold-down device can be driven at its approaching the approach table movement at a slower speed than on the moving away from the feed table path or it can hold down on its approaching the approach table movement with a decreasing speed and on itself from the feed table removing movement path with a increasing speed to be driven drivable.

Dabei kann der Bewegungsweg sich kreisbogenartig erstrecken.In this case, the movement path may extend in a circular arc.

Dazu ist in einfacher Weise die Niederhaltevorrichtung an einem ersten Ende eines in Förderrichtung zum Anlegetisch geneigten Hebels angeordnet, der an seinem anderen Ende um eine Schwenkachse schwenkbar antreibbar ist, die sich in einem größeren Abstand als die Niederhaltevorrichtung parallel quer über den Anlegetisch erstreckt.For this purpose, the hold-down device is arranged in a simple manner at a first end of a tilted in the conveying direction of the feed lever, which is pivotally driven at its other end about a pivot axis which extends at a greater distance than the hold-down parallel across the feed table.

In einer einfachen, wenig Bauraum benötigenden Ausbildung ist die Niederhaltevorrichtung eine sich parallel quer über den Anlegetisch erstreckende Niederhaltestange.In a simple, less space-requiring training the hold-down is a parallel extending transversely across the feed table holding-down bar.

Damit die niederzuhaltenden Bogen nicht an der Niederhaltestange entlang schleifen, können entweder auf der Niederhaltestange mehrere Niederhalterollen in einem Abstand zueinander oder auf der Niederhaltestange ein Niederhalterohr frei drehbar angeordnet sein.So that the bow to be held down does not drag along the hold-down bar, a hold-down tube can be freely rotatably arranged either on the hold-down bar at a distance from one another or on the hold-down bar.

Um einen einfachen kostengünstigen Antrieb zur Erzeugung der Schwenkbewegung der Niederhaltevorrichtung verwenden zu können, ist vorzugsweise der Hebel Teil eines Mehrgelenkgetriebes, insbesondere eines Viergelenkgetriebes, das als Antriebsteil eine von einem Drehantrieb drehbar antreibbare Kurbel aufweist.In order to use a simple inexpensive drive for generating the pivoting movement of the hold-down device, the lever is preferably part of a multi-joint transmission, in particular a four-bar mechanism, which has as a drive part rotatable by a rotary drive crank.

Dazu kann sich koaxial zur Schwenkachse ein Antriebsrohr über den Anlegetisch erstrecken und an seinen beiden Enden drehbar gelagert sein, wobei insbesondere an einem ersten Ende des Antriebsrohres mit ihrem einen Ende eine Schwinge und an einem zweiten Ende des Antriebsrohres mit ihrem einen Ende ein Mitnehmer des Mehrgelenkgetriebes sich radial zur Schwenkachse erstreckend fest angeordnet sind, wobei durch den Mitnehmer der Hebel schwenkbar antreibbar ist.For this purpose, a drive tube may extend coaxially to the pivot axis over the feed table and be rotatably mounted at both ends, in particular at a first end of the drive tube with its one end a rocker and at a second end of the drive tube with its one end a driver of the multi-link transmission extending radially to the pivot axis are arranged fixed, being pivotally driven by the driver of the lever.

Weiterhin kann dabei bauraumsparend auf dem Antriebsrohr ein Hebelrohr frei drehbar gelagert sein, an dem der Hebel oder in einem Abstand zueinander mehrere Hebel sich radial zur Schwenkachse erstreckend mit ihrem einen Ende fest angeordnet sind, wobei an dem anderen Ende des Hebel die Niederhaltevorrichtung angeordnet ist.Furthermore, this space-saving on the drive tube, a lever tube can be freely rotatably mounted on which the lever or at a distance from each other several levers are arranged radially to the pivot axis extending with its one end fixed, wherein at the other end of the lever, the hold-down device is arranged.

An dem dem Drehantrieb entgegengesetzten Ende der Kurbel kann dabei eine Stange mit ihrem einen Ende angelenkt sein, die mit ihrem anderen Ende an dem zweiten Ende der Schwinge angelenkt ist.At the opposite end of the rotary drive of the crank while a rod can be hinged at one end, which is hinged at its other end to the second end of the rocker.

Der Abstand zwischen dem Anlegetisch und der Niederhaltevorrichtung ist in ihrer abgesenkten Stellung verstellbar um eine Anpassung dieses Abstandes an die Dicke der jeweils zu verarbeitenden Bogen zu ermöglichen.The distance between the feed table and the hold-down device is adjustable in its lowered position to allow an adaptation of this distance to the thickness of each sheet to be processed.

In einfacher Weise wird dies dadurch erreicht, daß der Winkel in Umfangsrichtung zur Schwenkachse zwischen dem Mitnehmer und dem Hebel veränderbar einstellbar ist.In a simple way, this is achieved in that the angle in the circumferential direction to the pivot axis between the driver and the lever is changeably adjustable.

Zur Bewegungsübertragung von dem Mitnehmer auf den Hebel kann in einfacher Weise der Mitnehmer ein radial sich erstreckendes Langloch aufweisen, in das ein axial zur Schwenkachse hervorstehender Zapfen des Hebels hineinragt.For transmitting movement from the driver to the lever, the carrier can have a radially extending slot in a simple manner into which a pin of the lever projecting axially relative to the pivot axis protrudes.

Ist dabei an dem Hebel eine axial zur Schwenkachse sich erstreckende Bohrung ausgebildet, in der ein Schwenkteil verdrehbar einstellbar angeordnet ist, wobei der Zapfen mit seiner Achse exzentrisch zur Drehachse des Schwenkteils an dem Schwenkteil fest angeordnet ist, so kann durch Verdrehen des Schwenkteils der Abstand der Niederhaltevorrichtung zum Anlegetisch eingestellt werden.Is thereby formed on the lever an axially to the pivot axis extending bore in which a pivot member is rotatably adjustable, wherein the pin with its axis eccentric to the axis of rotation of the pivoting part on the Pivoting part is fixed, it can be adjusted to the feed table by turning the pivoting part of the distance of the hold-down device.

Zur Drehlagerung kann das Antriebsrohr an seinen Enden in feststehenden Lagerböcken gelagert sein.For rotary mounting, the drive tube may be mounted at its ends in fixed bearing blocks.

Zur Optimierung auf die jeweils zu verarbeitenden Bogen kann die Niederhaltevorrichtung in und entgegen der Förderrichtung bewegbar einstellbar sein.In order to optimize the respective sheets to be processed, the hold-down device can be movably adjusted in and counter to the conveying direction.

Dazu können die Lagerböcke in und entgegen der Förderrichtung bewegbar einstellbar sein.For this purpose, the bearing blocks can be movably adjusted in and against the conveying direction.

Eine andere einfach aufgebaute Möglichkeit besteht darin, daß das Antriebsrohr auf einer konzentrischen Lagerachse oder auf konzentrischen Lagerzapfen um die Schwenkachse frei drehbar gelagert ist, wobei die Lagerachse oder die Lagerzapfen um eine zur Schwenkachse parallele Achse drehbar einstellbar an den feststehenden Lagerböcken angeordnet sind.Another simply constructed possibility is that the drive tube is freely rotatably mounted on a concentric bearing axis or concentric bearing pin about the pivot axis, wherein the bearing axis or the bearing pins are arranged rotatably adjustable about an axis parallel to the pivot axis to the fixed bearing blocks.

Eine einfache Anpassung der Leitvorrichtung an unterschiedliche Bogenformate ist dadurch möglich, daß die Niederhaltevorrichtung insbesondere die Niederhaltestange und die Lagerachse und das Antriebsrohr sowie das Hebelrohr durch entsprechende Teile gleichen Aufbaus aber größerer oder geringerer Erstreckung in Richtung der Schwenkachse austauschbar sind.A simple adaptation of the guide device to different sheet formats is possible in that the hold-down device in particular the hold-down rod and the bearing axis and the drive tube and the lever tube are interchangeable by corresponding parts of the same construction but greater or lesser extent in the direction of the pivot axis.

Damit können auch bei unterschiedlichen Formaten die weiteren Bauteile der Leitvorrichtung unverändert weiterverwandt werden.Thus, the other components of the guide can be used unchanged even with different formats.

Der Drehantrieb kann ein elektromotorischer Antrieb oder ein gleichförmig oder ungleichförmig übersetzender Zahnriemenantrieb oder Zahnradantrieb von einem Antrieb der Bogen verarbeitenden Maschine wie z.B. einem Antrieb einer Seitenmarke sein.The rotary drive may be an electromotive drive or a uniform or non-uniform translating toothed belt drive or gear drive from a drive of the sheet processing machine, such as e.g. be a drive of a page mark.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

Figur 1
eine prinzipielle Seitenansicht des übergabeseitigen Endes eines Anlegetisches mit einer Leitvorrichtung
Figur 2
eine Prinzipdarstellung der Leitvorrichtung nach Figur 1
Figur 3
eine perspektivische Darstellung einer konstruktiven Ausbildung der Leitvorrichtung nach Figur 2.
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show it
FIG. 1
a schematic side view of the delivery-side end of a feed table with a guide
FIG. 2
a schematic diagram of the guide after FIG. 1
FIG. 3
a perspective view of a structural design of the guide after FIG. 2 ,

Figur 1 zeigt den Bereich einer Bogenanlage mit einem Anlegetisch 1. Dem Anlegetisch 1 ist gewöhnlich eine Fördereinrichtung in Form eines sogenannten Bändertischs zur Zufuhr eines unterschuppt liegenden Stroms von Bogen 2 vorgeordnet. Hierbei liegt das vorauslaufende Ende eines Bogens 2 jeweils unter dem nachlaufenden Ende eines vorauslaufenden Bogens 2. FIG. 1 shows the area of a sheet plant with a feed table 1. The feed table 1 is usually preceded by a conveyor in the form of a so-called belt table for supplying a subjumped stream of sheet 2. In this case, the leading end of a sheet 2 is in each case below the trailing end of a leading sheet second

Am Anlegetisch 1 sind Vorder- und Deckmarken 3 zur Ausrichtung der Bogen 2 an deren Vorderkante angeordnet. Den Vorder- und Deckmarken 3 in Förderrichtung 4 vorgeordnet ist eine Niederhalteeinrichtung 5 mit einem Gehäuse 6 gezeigt. innerhalb der Niederhalteeinrichtung 5 ist in dem Gehäuse 6 eine Niederhaltestange 7 vorgesehen. Die Niederhaltestange 7 ist nahe den Vorder- und Deckmarken 3 angeordnet und mittels des Gehäuses 6 gegenüber den Vorder- und Deckmarken 3 und der Oberfläche des Anlegetischs 1 vertikal einstellbar.At the feed table 1 front and top marks 3 are arranged to align the sheet 2 at the front edge. Upstream of the front and top marks 3 in the conveying direction 4, a hold-down device 5 with a housing 6 is shown. within the hold-down device 5, a hold-down rod 7 is provided in the housing 6. The hold-down bar 7 is disposed near the front and top marks 3 and vertically adjustable by means of the housing 6 with respect to the front and top marks 3 and the surface of the feed table 1.

Am Anlegetisch 1 sind weiterhin pneumatische Leitvorrichtungen in Form von Blas-Sog-Düsen 8 angeordnet. Außerdem sind an den Vorder- und Deckmarken 3 Leitrollen 9 vorgesehen.At the feed table 1 pneumatic guide devices in the form of blow-suction nozzles 8 are further arranged. In addition, 3 guide rollers 9 are provided at the front and top brands.

Weiterhin ist der Niederhalteeinrichtung 5 vorgeordnet am Anlegetisch 1 eine Seitenmarke 10 zur seitlichen Ausrichtung der Bogen 2 quer zur Förderrichtung vorgesehen.Furthermore, the hold-down device 5 is arranged upstream of the feed table 1, a side mark 10 for lateral alignment of the sheet 2 transverse to the conveying direction.

Die Bogen 2 werden von der Bogen verarbeitenden Maschine in Förderrichtung 4 nach Ausrichtung in seitlicher Richtung an der Seitenmarke 10 und der Ausrichtung in Bezug auf ihre Vorderkante an den Vorder- und Deckmarken 3 übernommen und vom Anlegetisch 1 abgezogen. Hierbei übt die Niederhalteeinrichtung 5 über die Niederhaltestange 7 zunächst eine Führungsfunktion für den unten liegenden Bogen 2 in der Weise aus, daß dieser sicher unter die Deckmarke geleitet wird. Dies ist besonders bei welligen Bogen wichtig. Die Niederhaltestange 7 wirkt aber beim Abziehen des oberen Bogens 2 nicht mehr als Führungseinrichtung insbesondere auf das Ende des mit hoher Geschwindigkeit vom Anlegetisch 1 ablaufenden oberen Bogens 2. Vielmehr wird dieses schnell freigegeben.The sheets 2 are taken over by the sheet-processing machine in the conveying direction 4 after alignment in the lateral direction on the side mark 10 and the orientation with respect to its front edge on the front and top marks 3 and deducted from the feed table 1. In this case, the hold-down device 5 via the hold-down bar 7 first performs a guide function for the underlying sheet 2 in such a way that it is safely passed under the deck mark. This is especially important with wavy bows. However, the hold-down bar 7 acts when removing the upper sheet 2 no longer as a guide device in particular to the end of the running at high speed from the feed table 1 upper sheet 2. Rather, this is released quickly.

Die in den Figuren 2 und 3 näher dargestellt Niederhalteeinrichtung 5 insbesondere für Kartons ist oberhalb des Anlegetischs 1, in den die Vorder- und Deckmarken 3 integriert sind, angeordnet. Sie weist zwei Hebel 11 und 12 auf, die zum einen die Niederhaltestange 7 drehbar gelagert aufnehmen und führen und zum anderen verdrehfest auf einem torsionssteifen Hebelrohr 13 befestigt sind. Dieses Hebelrohr 13 ist auf einem Antriebsrohr 14 drehbar gelagert. Das Antriebsrohr 14 überträgt eine schwingende Drehbewegung über einen Mitnehmer 15 auf den Hebel 12 der Niederhalteeinrichtung 5. Das Antriebsrohr 14 ist auf einer Lagerachse 16 um eine Schwenkachse 18 frei drehbar gelagert, wobei die Lagerachse 16 mit ihren Enden um eine zur Schwenkachse 18 parallele Achse 17 drehbar einstellbar an Lagerböcken 19 und 20 gelagert ist. Die beiden Lagerböcke 19 und 20 sind auf dem Anlegetisch 1 befestigt. Im Lagerbock 19 ist eine Kurbel 21 drehbar gelagert, die mittels eines hier nicht gezeigten Antriebs synchron zum Maschinentakt der Bogen verarbeitenden Maschine rotierend angetrieben wird. Die gewünschte schwingende Drehbewegung wird von einer an der Kurbel 21 angelenkten Stange 22 auf eine Schwinge 23 übertragen. Die Schwinge 23 ist verdrehfest mit dem Antriebsrohr 14 verbunden, so daß die schwingende Drehbewegung auf den Mitnehmer 15 übertragen wird. Figur 2 zeigt dabei die Niederhaltestange 7 kurz vor dem Erreichen des tiefsten Punktes ihrer Bewegungsbahn. Durch eine Verstellung des Hebels 12 gegenüber dem Mitnehmer 15 erfolgt eine Höheneinstellung der taktenden Niederhalteeinrichtung 5 zum Anlegetisch 1 und damit die Anpassung an die Bogendicke. Dazu weist der Mitnehmer 15 ein radial sich erstreckendes Langloch 24 auf, in das ein axial zu Schwenkachse 18 hervorstehender Zapfen 25 des Hebels 12 hineinragt. An dem Hebel 12 ist eine zur Schwenkachse 18 axial sich erstreckende Bohrung 26 ausgebildet, in der ein Schwenkteil 27 verdrehbar einstellbar angeordnet ist. Der Zapfen 25 ist mit seiner Achse exzentrisch zur Drehachse des Schwenkteils 27 an diesem fest angeordnet.The in the Figures 2 and 3 Hold-down device 5, in particular for cardboard boxes, is arranged above the feed table 1, in which the front and top marks 3 are integrated. It has two levers 11 and 12, on the one hand record the hold-down rod 7 rotatably mounted and lead and the other rotationally fixed on a torsionally rigid lever tube 13. This lever tube 13 is rotatably mounted on a drive tube 14. The drive tube 14 transmits a swinging rotational movement via a driver 15 to the lever 12 of the hold-down device 5. The drive tube 14 is freely rotatably mounted on a bearing axis 16 about a pivot axis 18, wherein the bearing axis 16 with its ends about an axis parallel to the pivot axis 18 17th rotatably adjustable is mounted on bearing blocks 19 and 20. The two bearing blocks 19 and 20 are mounted on the feed table 1. In the bearing block 19, a crank 21 is rotatably mounted, which is driven in rotation by means of a drive, not shown here synchronously to the machine cycle of the sheet processing machine. The desired oscillating rotational movement is transmitted to a rocker 23 by a rod 22 articulated on the crank 21. The rocker 23 is rotationally connected to the drive tube 14, so that the oscillating rotational movement is transmitted to the driver 15. FIG. 2 shows the hold-down bar 7 shortly before reaching the lowest point of its trajectory. By adjusting the lever 12 relative to the driver 15 is a height adjustment of the clocking hold-down device 5 to the feed table 1 and thus the adaptation to the sheet thickness. For this purpose, the driver 15 has a radially extending slot 24 into which an axially projecting pivot axis 18 pin 25 of the lever 12 protrudes. On the lever 12 a to the pivot axis 18 axially extending bore 26 is formed, in which a pivot member 27 is arranged rotatably adjustable. The pin 25 is arranged with its axis eccentric to the axis of rotation of the pivot member 27 fixed thereto.

Beim Antrieb der Kurbel 21 bewegt sich die Niederhaltstange 7 von ihrer niedrigsten Umkehrlage auf einem kreisbogenförmigen Bewegungsweg 28 in der Förderrichtung 4 vom Anlegetisch 1 entfernend nach oben bis zum oberen Umkehrpunkt der schwingenden Drehbewegung. Die Steuerung des Antriebs der Kurbel 21 und damit der Niederhaltestange 7 ist derart vorgesehen, daß die niedrigste Stellung der Niederhaltestange 7 dann erreicht wird, wenn unter einem abzuziehenden Bogen 2 ein einlaufender Bogen 2 fast die Vorder- und Deckmarken 3 erreicht hat. Damit wird sichergestellt, daß die Vorderkante des unten liegenden Bogens 2 sicher gegen die Vorder- und unter die Deckmarken 3 angelegt werden kann.When driving the crank 21, the hold-down rod 7 moves from its lowest reversal position on an arcuate movement path 28 in the conveying direction 4 from the feed table 1 removing up to the upper reversal point of the oscillating rotational movement. The control of the drive of the crank 21 and thus the hold-down bar 7 is provided such that the lowest position of the hold-down bar 7 is reached when under an incoming sheet 2 an incoming sheet 2 has almost reached the front and top marks 3. This ensures that the leading edge of the underlying sheet 2 can be safely applied against the front and under the deck marks 3.

Unabhängig von der Antriebsrichtung der Kurbel 21 nähert sich die Niederhaltestange 7 ihrer niedrigsten Stellung mit einer Geschwindigkeitskomponente, die gegen die Förderrichtung 4 der abzuführenden Bogen gerichtet ist. Damit wird der Bogen 2 in seiner Beweglichkeitbeim Abziehen in die Bogen verarbeitenden Maschine jedoch nicht behindert, da die Niederhaltestange 7 sich bei der weiteren Bewegung vom Anlegetisch 1 und von den Vorder- und Deckmarken 3 entfernt. Wird die Kurbel 21 in Gegenuhrzeigersinn angetrieben, so entfernt sich die Niederhaltestange 7 nach dem Durchfahren ihrer niedrigsten Stellung schneller von dem Anlegetisch 1 und den Vorder- und Deckmarken 3 als sie sich zuvor an diese angenähert hat. Gleichzeitig ist die Bewegung des Bogens 2 auch dadurch nicht behindert, daß die den Bogen 2 bei der Leitbewegung berührenden Niederhaltestange 7 eine Relativbewegung erlaubt.Regardless of the drive direction of the crank 21, the hold-down rod 7 approaches its lowest position with a speed component, the directed against the conveying direction 4 of the discharged sheet. However, this does not hinder the flexibility of the sheet 2 when it is drawn off into the sheet-processing machine, since the holding-down rod 7 moves away from the feed table 1 and from the front and top marks 3 during the further movement. If the crank 21 is driven in a counterclockwise direction, the hold-down bar 7 removes faster after passing through its lowest position of the feed table 1 and the front and top marks 3 as it has previously approximated to this. At the same time, the movement of the sheet 2 is not hindered by the fact that the sheet 2 touching the guide during the down holding rod 7 allows a relative movement.

Die Funktion der Niederhaltestange 7 ist derart, daß beim maschinensynchronen Antrieb des in den Figuren gezeigten ebenen, aus der Kurbel 21, der Stange 22 und der Schwinge 23 gebildeten Viergelenkgetriebes die Niederhaltestange 7 aus einer oberen Umkehrlage heraus auf einen kreisbogenförmigen Bewegungsweg 28 dem Anlegetisch 1 angenähert wird. Die niedrigste Stellung wird, wie beschrieben, entgegen der Förderrichtung 4 der Bogen 2 dann erreicht, wenn der untere Bogen 2 an die Vorder- und Deckmarken 3 herangeführt ist. Danach bewegt sich die Niederhaltestange 7 wieder mit einer Geschwindigkeitskomponente in Förderrichtung 4 der Bogen 2 rasch vom Anlegetisch 1 weg.The function of the hold-down bar 7 is such that when machine-synchronous drive of the flat, shown in the figures, formed from the crank 21, the rod 22 and the rocker arm 23 four-bar mechanism, the hold-down rod 7 from an upper reversing position on an arcuate movement path 28 approximates the feed table 1 becomes. The lowest position, as described, counter to the conveying direction 4 of the sheet 2 is reached when the lower sheet 2 is brought to the front and top marks 3. Thereafter, the hold-down bar 7 moves again with a speed component in the conveying direction 4 of the sheet 2 quickly from the feed table 1 away.

Damit gibt die Niederhaltestange 7 den Bewegungsraum für den abzuziehenden Bogen 2 frei, so daß der Bogen 2 nicht zu stark über die Forder- und Deckmarken 3 gekrümmt wird. So wird vermieden, daß eine Beschädigung, insbesondere von Bogen 2 aus relativ steifem Material, durch Markieren an den Vorder- und Deckmarken 3 entstehen kann.Thus, the hold-down bar 7, the movement space for the sheet 2 to be deducted free, so that the sheet 2 is not curved too much on the Forder- and deck marks 3. This avoids that damage, in particular of sheet 2 made of relatively stiff material, can be caused by marking on the front and top marks 3.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Anlegetischfeed table
22
Bogenbow
33
Vorder- und DeckmarkenFront and top brands
44
Förderrichtungconveying direction
55
NiederhalteeinrichtungHold-down device
66
Gehäusecasing
77
NiederhaltestangeDown bar
88th
Blas-Sog-DüseBlow-suction nozzle
99
Leitrollenidlers
1010
Seitenmarkensidelays
1111
Hebellever
1212
Hebellever
1313
Hebelrohrlever pipe
1414
Antriebsrohrdrive tube
1515
Mitnehmertakeaway
1616
Lagerachsebearing axle
1717
Achseaxis
1818
Schwenkachseswivel axis
1919
Lagerbockbearing block
2020
Lagerbockbearing block
2121
Kurbelcrank
2222
Stangepole
2323
Schwingewing
2424
LanglochLong hole
2525
Zapfenspigot
2626
Bohrungdrilling
2727
Schwenkteilpivoting part
2828
Bewegungswegmotion path

Claims (23)

  1. Guiding device for the cyclic sheet feed in feed direction in the region of a sheet plant on a feed table of a machine processing sheets, more preferably a printing machine with a front and/or covering mark for the orientation of the front edge of the very first sheet in each case of a more preferably under-scaled sheet flow and with a hold-down device extending parallel across over the feed table in the region of the front and/or covering mark, which can be driven capable of being lifted and lowered relative to the feed table in time with the sheet to be fed,
    characterized in that
    the hold-down device can be moveably driven on a movement path (28) approaching the feed table (1) from its raised position into its lowered position and vice versa in such a manner that in the region of the contact of the sheets (2) it moves opposite to the feed direction (4) of the sheets (2).
  2. The guiding device according to Claim 1, characterized in that the hold-down device on its movement path approaching the feed table (1) can be driven with a lower speed than on the movement path moving away from the feed table (1).
  3. The guiding device according to Claim 1, characterized in that the hold-down device on its movement path approaching the feed table (1) can be driven with a decreasing speed and on the movement path moving away from the feed table (1) can be driven with an increasing speed.
  4. The guiding device according to any one of the preceding claims, characterized in that the movement path (28) extends arc of a circle-like.
  5. The guiding device according to Claim 4, characterized in that the hold-down device is arranged on a first end of a lever (11, 12) inclined in feed direction (4) to the feed table (1), which at its other end can be driven in a swivelling manner about a swivel axis (18) which extends parallel across over the feed table (1) at a greater distance than the hold-down device.
  6. The guiding device according to anyone of the preceding claims, characterized in that the hold-down device is a hold-down bar (7) which extends parallel across over the feed table.
  7. The guiding device according to Claim 6, characterized in that on the hold-down bar several hold-down rollers are arranged freely rotatable at a distance to one another.
  8. The guiding device according to Claim 6, characterized in that on the hold-down bar a hold-down tube is freely rotatably arranged.
  9. The guiding device according to any one of the preceding claims, characterized in that the lever (11) is part of a multiple joint gearing which as drive part comprises a crank (21) which can be rotatably driven by a rotary drive.
  10. The guiding device according to Claim 9, characterized in that the multiple joint gearing is a four-joint gearing.
  11. The guiding device according to any one of the Claims 9 and 10, characterized in that coaxially to the swivel axis (18) a drive tube (14) extends over the feed table (1) and on its both ends is rotatably mounted, wherein more preferably at a first end of the drive tube (14) with its one end a rocker (23) and on a second end of the drive tube (14) with its one end a driver (15) of the multi-joint gearing extending radially to the swivel axis (18) are securely arranged, wherein the lever (12) can be driven in a swivelling manner by the driver (15).
  12. The guiding device according to Claim 11, characterized in that on the drive tube (14) a lever tube (13) is mounted freely rotatably on which the lever or at a distance to one another, several levers (11, 12) extending radially to the swivel axis (18) with their one end are securely arranged, wherein on the other end of the levers (11, 12) the hold-down device is arranged.
  13. The guiding device according to Claim 12, characterized in that on the end of the crank (21) opposite to the rotary drive a rod (22) with its one end is articulated, which with its other end is articulated on the second end of the rocker (23).
  14. The guiding device according to any one of the preceding claims, characterized in that the distance between the feed table (1) and the hold-down device is adjustable in its lowered position.
  15. The guiding device according to Claim 14, characterized in that the angle in circumferential direction to the swivel axis (18) can be variably adjusted between the driver (15) and the lever (12).
  16. The guiding device according to Claim 15, characterized in that the driver (15) comprises a radially extending elongated hole (24) into which a pin (25) of the lever (12) which protrudes axially to the swivel axis (18), protrudes.
  17. The guiding device according to Claim 16, characterized in that on the lever (12) a bore (26) which extends axially to the swivel axis (18) is formed in which a swivel part (27) is arranged rotatably adjustable, wherein the pin (25) with its axis eccentrically to the axis of rotation of the swivel part (27) is securely arranged on the swivel part (27).
  18. The guiding device according to any one of the Claims 11 to 17, characterized in that the drive tube (14) at its end is mounted in fixed bearing blocks (19, 20).
  19. The guiding device according to any one of the preceding claims, characterized in that the hold-down device is moveably adjustable in and opposite to the feed direction (4).
  20. The guiding device according to any one of the Claims 18 and 19, characterized in that the bearing blocks are moveably adjustable in and opposite to the feed direction.
  21. The guiding device according to any one of the Claims 18 and 19, characterized in that the drive tube is mounted freely rotatable about the swivel axis on a concentric bearing axis or on concentric bearing pins, wherein the bearing axis or the bearing pins are arranged on the fixed bearing blocks rotatably about an axis parallel to the swivel axis.
  22. The guiding device according to any one of the preceding claims, characterized in that the hold-down device more preferably the hold-down bar (7) and the bearing axis (16) and the drive tube (14) as well as the lever tube (13) are exchangeable through corresponding parts of the same construction but larger or lesser extension in the direction of the swivel axis (18).
  23. The guiding device according to Claim 9, characterized in that the rotary drive is an electric motor drive or a uniformly or non-uniformly transmitting toothed belt drive or gear drive of a drive of the machine processing sheets.
EP06000048A 2005-01-12 2006-01-03 Guiding device Not-in-force EP1681253B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005001375A DE102005001375A1 (en) 2005-01-12 2005-01-12 guide

Publications (2)

Publication Number Publication Date
EP1681253A1 EP1681253A1 (en) 2006-07-19
EP1681253B1 true EP1681253B1 (en) 2008-10-01

Family

ID=35788648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06000048A Not-in-force EP1681253B1 (en) 2005-01-12 2006-01-03 Guiding device

Country Status (4)

Country Link
EP (1) EP1681253B1 (en)
JP (1) JP2006193335A (en)
AT (1) ATE409671T1 (en)
DE (2) DE102005001375A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008776B4 (en) * 2008-03-17 2021-05-27 Heidelberger Druckmaschinen Ag Device for aligning sheets with stops
DE102009001190B4 (en) 2009-02-26 2023-11-09 Koenig & Bauer Ag Sheet processing machine with a feeding table
DE102015201325A1 (en) * 2014-02-21 2015-08-27 Heidelberger Druckmaschinen Ag Method and device for holding down a sheet on the feed table of a sheet-processing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB716880A (en) * 1951-09-03 1954-10-13 Headley Townsend Backhouse Improvements in or relating to sheet feeding mechanisms
DE2134834B1 (en) * 1971-07-13 1972-09-14 Heidelberger Druckmaschinen Ag Sheet conveyor
DE4435264C2 (en) * 1994-10-01 2001-05-10 Heidelberger Druckmasch Ag Bow hold down
DE19631175C1 (en) * 1996-08-02 1998-01-29 Roland Man Druckmasch Device for feeding sheets to a printing press
DE19962116A1 (en) * 1999-12-21 2001-06-28 Heidelberger Druckmasch Ag Guide device for guiding sheets and method for operating a guide device
JP2002225228A (en) * 2001-01-31 2002-08-14 Mitsubishi Heavy Ind Ltd Paper presser of swing type
DE10244219B4 (en) * 2001-10-15 2019-01-17 Heidelberger Druckmaschinen Ag Device and method for sheet supply to a sheet-processing machine, in particular printing machine
DE10344402B4 (en) * 2002-10-02 2007-09-20 Man Roland Druckmaschinen Ag Guide for sheet feeding on a printing machine

Also Published As

Publication number Publication date
DE102005001375A1 (en) 2006-07-20
DE502006001649D1 (en) 2008-11-13
EP1681253A1 (en) 2006-07-19
JP2006193335A (en) 2006-07-27
ATE409671T1 (en) 2008-10-15

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