EP1892206A2 - Sheet guide device for sheet feeders - Google Patents

Sheet guide device for sheet feeders Download PDF

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Publication number
EP1892206A2
EP1892206A2 EP07114944A EP07114944A EP1892206A2 EP 1892206 A2 EP1892206 A2 EP 1892206A2 EP 07114944 A EP07114944 A EP 07114944A EP 07114944 A EP07114944 A EP 07114944A EP 1892206 A2 EP1892206 A2 EP 1892206A2
Authority
EP
European Patent Office
Prior art keywords
sheet
band
guiding device
sheet guiding
conveying
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
EP07114944A
Other languages
German (de)
French (fr)
Other versions
EP1892206A3 (en
EP1892206B1 (en
Inventor
Guntram Diem
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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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1892206A2 publication Critical patent/EP1892206A2/en
Publication of EP1892206A3 publication Critical patent/EP1892206A3/en
Application granted granted Critical
Publication of EP1892206B1 publication Critical patent/EP1892206B1/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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • 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
    • B65H3/66—Article guides or smoothers, e.g. movable in operation
    • B65H3/68—Article guides or smoothers, e.g. movable in operation immovable in operation

Definitions

  • the invention relates to a sheet guiding device for sheet feeder with a sheet separating and conveying, for format adjustment in and against the sheet conveying direction movable sheet separator and with blowing devices for building a Bogen inconvenience supporting air cushion and a Bogen inconvenienceebene the sheet limiting, consisting of individual sheet guide sheet guide, wherein the Sheet guiding elements consist of a band-shaped body and at least one acted upon by a rewinding winding roll.
  • Such a sheet guide is described. It consists of strips arranged above the sheet pile, which extend from the sheet separator downwards to about the transfer point of the sheet extend to the machine and guide the underblown air carrying bow.
  • the bands are rolled up on bobbins, which are acted upon by a restoring force, so that the tapes are wound and held constantly tight.
  • the tapes are wound off the winding rolls or wound on them, so that the sheets are guided over the entire conveying path.
  • the disadvantage is that the bands are excited to vibrate, so that the bowing is adversely affected. It is also disadvantageous that the bands tend to sag in large-sized machines due to their low rigidity, which also adversely affects the bowing and can only be compensated by complex measures by z. B. high clamping forces can be realized.
  • a sheet guiding device is known, the individual arranged at a distance next to each other, owns own rigidity, consisting of strip-shaped flat material sheet guiding elements.
  • the sheet guiding elements are articulated on the sheet separator and slidably guided in the area facing the downstream machine.
  • a disadvantage is that the free ends of the sheet guiding elements in the processing of sheets that are smaller than the maximum size, project into the downstream machine and hinder operator actions or operations.
  • the object of the invention is to form the sheet guiding elements so that they have a bowing enabling self-rigidity and can be rolled up for length adjustment.
  • the object is achieved by a sheet guiding device according to the features of claim 1.
  • the solution according to the invention makes it possible to realize a sheet guiding device in which the band-shaped bodies can be wound up or unwound advantageously in a format adaptation, on the other hand realize their own rigidity due to their design in the extended position, which causes only low clamping forces applied Need to become.
  • FIG. 1 shows a sheet feeder with a stack of sheets 2 consisting of sheet 1.
  • 2.1 shows in FIG. 2 a sheet stack with maximum sheet format and with 2.2 with minimal sheet format.
  • a sheet separator 3 is arranged, which is equipped with a button base 4, a sheet separator 5, a sheet transport device 7 and 9 loosening blower.
  • the sheet separator 5 consists of separating suction 6 and the sheet transport device 7 from transport suckers 8.
  • the sheet stack 2 is located on a located in a vertical position sheet flap 10, which is performed in cycles to a flap shaft 11 pivotally.
  • the flap shaft 11 is arranged downstream of a circulating transport roller 12, which is in operative connection with spaced apart on a common shaft 13 arranged clock rollers 14. Between the clock rollers 14 spacer rollers 15 are provided, which have a smaller diameter than the clock rollers 14. Side of the sheet stack 2 side blowers 16 are also provided. At a distance from the sheet stack 2, a sheet guiding device 19 is provided.
  • the sheet guiding device 19 is composed of individual sheet guiding elements, which consist of a band-shaped body 20 and a winding roll 21.
  • the winding rollers 21 are spaced from each other on a support rod 18 which is fixedly connected to the sheet separator 3. The winding rollers 21 are acted upon by a rewinding force.
  • the band-shaped body 20 extend from the winding rollers 21 in sheet conveying direction 17 to a clock rollers 14 downstream of the clamping rod 22 to which the free ends of the band-shaped body 20 are locked.
  • the band-shaped body 20 are guided in the gap formed between the spacer rollers 15 and the transport roller 12.
  • the band-shaped body 20 are made of steel or a plastic of low strength and are wound on the winding rollers 21. When wound up, the band-shaped bodies 20 have a rectangular profile cross-section.
  • the band-shaped body 20 are plastically deformed so that they pass in the transition from the rolled state to an extended position in a profile cross-section, which has an increased moment of resistance against a bending load.
  • band-shaped bodies 20 imprinted plastic deformations, these can during the transition to the extended position a curved profile cross-section, as he z. B. in so-called rolling meters use, pass.
  • the band-shaped body 20 are guided against the action of the rewind force of the winding rollers 21 above the sheet pile 2 with the free end to the clamping rod 22 and clamped there, preferably the concave shapes of the band-shaped body 20, the at Transition from the rolled in the stretched state arise, facing away from the sheet pile 2.
  • the band-shaped body 20 Due to the inventive design of the band-shaped body 20 they have a high inherent rigidity in the unrolled state, so that only small clamping forces, which are applied by the winding rollers 21, are required to realize the necessary rigidity of the sheet guiding device 19.
  • the respective uppermost sheet 1 of the sheet stack 2 is lifted by the separating suction 6 and thus isolated in the sheet processing machine facing away from the area.
  • the stylus foot 4 By means of the stylus foot 4, the loosening blowers 9 and the side blowers 16, an air cushion is built up under the sheet 1 covered by the transport suckers 8 and thus the sheet 1 is completely separated from the sheet stack 2 and lifted against the band-shaped bodies 20 of the sheet guiding device 19.
  • the sheet 1 is transferred to the transport suction 8 and transported through this in the sheet conveying direction 17, wherein the sheet flap 10 is pivoted by rotation of the flap shaft 11 and the clock rollers 14 are lifted.
  • the sheet 1 is guided by the band-shaped bodies 20 of the sheet guiding device 19.
  • the clock rollers 14 are controlled against the transport roller 12 and the sheet 1 transported in the downstream machine, the sheet 1 is released from the transport suckers 8. If it is necessary to move the sheet separator 3 for format adaptation in or against the sheet conveying direction 17, the band-shaped body 20 are wound by the rewinding force of the winding rollers 21 or unwound against this rewinding force.
  • the sheet guiding elements not required for bowing can be removed by releasing the free end of this band-shaped body 20 from the clamping rod 22 and the band-shaped body 20 on the winding roll 21 is wound up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The sheet feeding device has a sheet separator (3), separating a sheet (1) and adjustable in and against sheet conveying direction (17) for format adjustment. Glass devices develop an air cushion, supporting the sheet conveying, and the device limits a sheet conveying level of the sheet and comprises individual sheet feeding elements. The sheet feeding elements comprise a strap-like body (20) and a winding roll (21) loaded by a rewinding force. The strap-like bodies have a formation increasing the resistive torque against bending.

Description

Die Erfindung betrifft eine Bogenleiteinrichtung für Bogenanleger mit einem die Bogen vereinzelnden und fördernden, zur Formatanpassung in und entgegen der Bogenförderrichtung verschiebbaren Bogentrenner sowie mit Blaseinrichtungen zum Aufbauen eines die Bogenförderung unterstützenden Luftpolsters und eine eine Bogenförderebene der Bogen begrenzende, aus einzelnen Bogenleitelementen bestehende Bogenleiteinrichtung, wobei die Bogenleitelemente aus einem bandförmigen Körper und wenigstens einer durch eine Rückspulkraft beaufschlagbaren Wickelrolle bestehen.The invention relates to a sheet guiding device for sheet feeder with a sheet separating and conveying, for format adjustment in and against the sheet conveying direction movable sheet separator and with blowing devices for building a Bogenförderung supporting air cushion and a Bogenförderebene the sheet limiting, consisting of individual sheet guide sheet guide, wherein the Sheet guiding elements consist of a band-shaped body and at least one acted upon by a rewinding winding roll.

Bei gattungsgemäßen Bogenanlegern ist es allgemein üblich, die Bogen von einem Bogenstapel mittels einer an einem Bogentrenner angeordneten Trenneinrichtung zu vereinzeln, den vereinzelten Bogen an eine ebenfalls am Bogentrenner angeordnete Transporteinrichtung zu übergeben, die diesen in Bogenförderrichtung zur nachgeordneten Bogen verarbeitenden Maschine transportiert. Zur Unterstützung der Bogentrennung und der Bogenförderung werden die Bogen durch Blasvorrichtungen unterblasen, so dass ein Luftpolster aufgebaut wird, auf dem der lediglich durch die Transporteinrichtung gehaltene Bogen geführt wird, bis er durch Arbeitsorgane der nachgeordneten Maschine erfasst und nachfolgend von der Transporteinrichtung freigegeben wird.
Um insbesondere Bogen geringer Steifigkeit exakt und problemlos an die Arbeitsorgane der Bogen verarbeitenden Maschine übergeben zu können, ist es bekannt, eine die Bogenförderebene begrenzende Bogenleiteinrichtung vorzusehen.
In der DE 195 37 284 C1 ist eine derartige Bogenleiteinrichtung beschrieben. Sie besteht aus oberhalb des Bogenstapels angeordneten Bändern, die sich vom Bogentrenner abwärts geneigt bis etwa zur Übergabestelle der Bogen an die Maschine erstrecken und die von Tragluft unterblasenen Bogen führen. Die Bänder sind auf Wickelrollen aufgerollt, welche mit einer Rückstellkraft beaufschlagt sind, so dass die Bänder gewickelt und ständigstraff gehalten werden. Beim Verschieben des Bogentrenners zur Formateinstellung in oder entgegen der Bogentransportrichtung werden die Bänder von den Wickelrollen ab- oder auf diese gewickelt, so dass die Bogen über den gesamten Förderweg geführt werden.
Nachteilig ist, dass die Bänder zu Schwingungen angeregt werden, so dass die Bogenführung nachteilig beeinflusst wird. Außerdem ist es von Nachteil, dass die Bänder in großformatigen Maschinen aufgrund ihrer geringen Eigensteifigkeit zum Durchhängen neigen, was die Bogenführung ebenfalls nachteilig beeinflusst und nur durch aufwändige Maßnahmen kompensiert werden kann, indem z. B. hohe Spannkräfte realisiert werden.In generic sheet feeders, it is common practice to separate the sheet from a stack of sheets by means of a separator arranged on a sheet separator, to transfer the separated sheet to a likewise arranged on the sheet separator transport device that transports these in the sheet conveying direction to the downstream sheet processing machine. To support the sheet separation and sheet conveying the sheets are blown by blowing devices, so that an air cushion is established, on which the only held by the transport device sheet is guided until it is detected by working organs of the downstream machine and subsequently released by the transport device.
In order to be able to transfer in particular sheets of low rigidity precisely and without problems to the working members of the sheet-processing machine, it is known to provide a sheet conveying device delimiting the sheet conveying device.
In the DE 195 37 284 C1 Such a sheet guide is described. It consists of strips arranged above the sheet pile, which extend from the sheet separator downwards to about the transfer point of the sheet extend to the machine and guide the underblown air carrying bow. The bands are rolled up on bobbins, which are acted upon by a restoring force, so that the tapes are wound and held constantly tight. When moving the sheet separator for format adjustment in or against the sheet transport direction, the tapes are wound off the winding rolls or wound on them, so that the sheets are guided over the entire conveying path.
The disadvantage is that the bands are excited to vibrate, so that the bowing is adversely affected. It is also disadvantageous that the bands tend to sag in large-sized machines due to their low rigidity, which also adversely affects the bowing and can only be compensated by complex measures by z. B. high clamping forces can be realized.

Aus der DE 197 13 919 C1 ist eine Bogenleiteinrichtung bekannt, die einzelne im Abstand nebeneinander angeordnete, eine Eigensteifigkeit besitzende, aus streifenförmigen Flachmaterial bestehende Bogenleitelemente aufweist. Die Bogenleitelemente sind am Bogentrenner angelenkt und im der nachgeordneten Maschine zugewendeten Bereich verschiebbar geführt.
Nachteilig ist, dass die freien Enden der Bogenleitelemente bei der Verarbeitung von Bogen, die kleiner als das maximale Format sind, in die nachgeordnete Maschine ragen und Bedienhandlungen oder Arbeitsvorgänge behindern.From the DE 197 13 919 C1 a sheet guiding device is known, the individual arranged at a distance next to each other, owns own rigidity, consisting of strip-shaped flat material sheet guiding elements. The sheet guiding elements are articulated on the sheet separator and slidably guided in the area facing the downstream machine.
A disadvantage is that the free ends of the sheet guiding elements in the processing of sheets that are smaller than the maximum size, project into the downstream machine and hinder operator actions or operations.

Aufgabe der Erfindung ist es, die Bogenleitelemente so auszubilden, dass diese eine die Bogenführung ermöglichende Eigensteifigkeit aufweisen und zur Längenverstellung aufgerollt werden können.The object of the invention is to form the sheet guiding elements so that they have a bowing enabling self-rigidity and can be rolled up for length adjustment.

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

Die erfindungsgemäße Lösung ermöglicht es, eine Bogenleiteinrichtung zu realisieren, bei der in vorteilhafter Weise bei einer Formatanpassung einerseits die bandförmigen Körper auf- oder abgespult werden können, anderseits aufgrund ihrer Ausgestaltung in der Strecklage eine Eigensteifigkeit realisieren, die dazu führt, dass nur geringe Spannkräfte aufgebracht werden müssen.The solution according to the invention makes it possible to realize a sheet guiding device in which the band-shaped bodies can be wound up or unwound advantageously in a format adaptation, on the other hand realize their own rigidity due to their design in the extended position, which causes only low clamping forces applied Need to become.

Die Erfindung wird an einem Ausführungsbeispiel näher erläutert. In den zugehörigen Zeichnungen zeigen

Figur 1
eine ausschnittsweise schematische Darstellung eines Bogenanlegers in der Seitenansicht
Figur 2
eine Draufsicht gem. Fig. 1
Figur 3
einen Schnitt entlang der Linie A-A in Fig. 2
The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawings show
FIG. 1
a partial schematic representation of a sheet feeder in the side view
FIG. 2
a top view gem. Fig. 1
FIG. 3
a section along the line AA in Fig. 2nd

In Figur 1 ist ein Bogenanleger mit einem aus Bogen 1 bestehenden Bogenstapel 2 dargestellt. Mit 2.1 ist in Figur 2 ein Bogenstapel mit maximalem Bogenformat und mit 2.2 mit minimalem Bogenformat gezeigt. An der Oberseite des Bogenstapels 2 ist ein Bogentrenner 3 angeordnet, der mit einem Tasterfuß 4, einer Bogentrenneinrichtung 5, einer Bogentransporteinrichtung 7 und Lockerungsbläsern 9 ausgestattet ist. Die Bogentrenneinrichtung 5 besteht aus Trennsaugern 6 und die Bogentransporteinrichtung 7 aus Transportsaugern 8. Im der die Bogen 1 verarbeitenden Maschine zugewandten Bereich des Bogenanlegers liegt der Bogenstapel 2 an einer in einer senkrechten Lage befindlichen Bogenklappe 10 an, die taktweise um eine Klappenwelle 11 schwenkbar ausgeführt ist. Der Klappenwelle 11 ist eine umlaufende Transportwalze 12 nachgeordnet, die in Wirkverbindung mit im Abstand zueinander auf einer gemeinsamen Welle 13 angeordneten Taktrollen 14 steht. Zwischen den Taktrollen 14 sind Distanzrollen 15 vorgesehen, die einen geringeren Durchmesser aufweisen als die Taktrollen 14. Seitlich am Bogenstapel 2 sind weiterhin Seitenbläser 16 vorgesehen.
In einem Abstand zum Bogenstapel 2 ist eine Bogenleiteinrichtung 19 vorgesehen. Die Bogenleiteinrichtung 19 setzt sich aus einzelnen Bogenleitelementen zusammen, die aus einem bandförmigen Körper 20 und einer Wickelrolle 21 bestehen. Die Wickelrollen 21 sind beabstandet zueinander auf einer Tragstange 18 angeordnet, die mit dem Bogentrenner 3 fest verbunden ist. Die Wickelrollen 21 sind mit einer Rückspulkraft beaufschlagt. Die bandförmigen Körper 20 erstrecken sich von den Wickelrollen 21 in Bogenförderrichtung 17 bis zu einer den Taktrollen 14 nachgeordneten Klemmstange 22, an der die freien Enden der bandförmigen Körper 20 arretiert sind. Die bandförmigen Körper 20 sind im zwischen den Distanzrollen 15 und der Transportwalze 12 gebildeten Spalt geführt.
Die bandförmigen Körper 20 bestehen aus Stahl oder einem Kunststoff geringer Stärke und sind auf den Wickelrollen 21 aufgewickelt. Im aufgewickelten Zustand weisen die bandförmigen Körper 20 einen rechteckigen Profilquerschnitt auf. Die bandförmigen Körper 20 sind plastisch so verformt, dass sie beim Übergang vom aufgerollten Zustand in eine Strecklage in einem Profilquerschnitt übergehen, der ein erhöhtes Widerstandsmoment gegen eine Biegebelastung aufweist. Entsprechend der den bandförmigen Körpern 20 aufgeprägten plastischen Verformungen können diese beim Übergang in die Strecklage einen gewölbten Profilquerschnitt, wie er z. B. bei so genannten Rollmetern Verwendung findet, übergehen. Es ist aber auch möglich, den bandförmigen Körpern 20 eine solche plastische Verformung aufzuprägen, dass beim Übergang in die Strecklage der Profilquerschnitt zwei Wölbungen aufweist oder andere Profilquerschnitte ausgebildet werden, die das Widerstandmoment gegen Biegung erhöhen (Fig. 3).
Von den auf der Tragstange 18 angeordneten Wickelrollen 21 werden die bandförmigen Körper 20 entgegen der Wirkung der Rückspulkraft der Wickelrollen 21 oberhalb des Bogenstapels 2 mit dem freien Ende zur Klemmstange 22 geführt und dort geklemmt, wobei vorzugsweise die konkaven Ausformungen der bandförmigen Körper 20, die beim Übergang vom gerollten in den gestreckten Zustand entstehen, vom Bogenstapel 2 abgewandt sind. Damit wird die Gefahr beseitigt, dass die von den bandförmigen Körpern 20 geführten Bogen 1 durch deren Kante beschädigt werden, wobei es möglich ist, die bandförmigen Körper 20 mit einer Umhüllung zu versehen, welche eine geringe Reibung gegenüber den zu transportierenden Bogen 1 aufweist. Durch die erfindungsgemäße Ausbildung der bandförmigen Körper 20 besitzen diese im ausgerollten Zustand eine hohen Eigensteifigkeit, so dass nur geringe Spannkräfte, welche durch die Wickelrollen 21 aufgebracht werden, erforderlich sind, um die notwendige Steifigkeit der Bogenleiteinrichtung 19 zu realisieren.
In bekannter Weise wird der jeweils oberste Bogen 1 des Bogenstapels 2 durch die Trennsauger 6 angehoben und damit im der Bogen verarbeitenden Maschine abgewandten Bereich vereinzelt. Durch den Tasterfuß 4, die Lockerungsbläser 9 und die Seitenbläser 16 wird unter dem durch die Transportsauger 8 erfassten Bogen 1 ein Luftpolster aufgebaut und damit der Bogen 1 vom Bogenstapel 2 vollständig getrennt sowie gegen die bandförmigen Körper 20 der Bogenleiteinrichtung 19 gehoben. Nachfolgend wird der Bogen 1 an die Transportsauger 8 übergeben und durch diese in Bogenförderrichtung 17 transportiert, wobei die Bogenklappe 10 durch Drehung der Klappenwelle 11 abgeschwenkt und die Taktrollen 14 abgehoben sind. Dabei wird der Bogen 1 von den bandförmigen Körpern 20 der Bogenleiteinrichtung 19 geführt. Nachdem der Bogen 1 in den Bereich Transportwalze 12/Taktrolle 14 gelangt ist, werden die Taktrollen 14 gegen die Transportwalze 12 gesteuert und der Bogen 1 in die nachgeordnete Maschine transportiert, wobei der Bogen 1 von den Transportsaugern 8 freigegeben wird.
Ist es erforderlich, den Bogentrenner 3 zur Formatanpassung in oder entgegen der Bogenförderrichtung 17 zu verschieben, werden die bandförmigen Körper 20 durch die Rückspulkraft der Wickelrollen 21 aufgespult oder entgegen dieser Rückspulkraft abgewickelt. Sollen Bogen 1 verarbeitet werden, deren Format zwischen maximalen Bogenformat 2.1 und minimalen Bogenformat 2.2 liegt, können die nicht zur Bogenführung erforderlichen Bogenleitelemente entfernt werden, indem das freie Ende dieser bandförmigen Körper 20 von der Klemmstange 22 gelöst und der bandförmige Körper 20 auf der Wickelrolle 21 aufgewickelt wird.FIG. 1 shows a sheet feeder with a stack of sheets 2 consisting of sheet 1. 2.1 shows in FIG. 2 a sheet stack with maximum sheet format and with 2.2 with minimal sheet format. At the top of the sheet stack 2, a sheet separator 3 is arranged, which is equipped with a button base 4, a sheet separator 5, a sheet transport device 7 and 9 loosening blower. The sheet separator 5 consists of separating suction 6 and the sheet transport device 7 from transport suckers 8. In the sheet 1 processing machine facing area of the sheet feeder the sheet stack 2 is located on a located in a vertical position sheet flap 10, which is performed in cycles to a flap shaft 11 pivotally. The flap shaft 11 is arranged downstream of a circulating transport roller 12, which is in operative connection with spaced apart on a common shaft 13 arranged clock rollers 14. Between the clock rollers 14 spacer rollers 15 are provided, which have a smaller diameter than the clock rollers 14. Side of the sheet stack 2 side blowers 16 are also provided.
At a distance from the sheet stack 2, a sheet guiding device 19 is provided. The sheet guiding device 19 is composed of individual sheet guiding elements, which consist of a band-shaped body 20 and a winding roll 21. The winding rollers 21 are spaced from each other on a support rod 18 which is fixedly connected to the sheet separator 3. The winding rollers 21 are acted upon by a rewinding force. The band-shaped body 20 extend from the winding rollers 21 in sheet conveying direction 17 to a clock rollers 14 downstream of the clamping rod 22 to which the free ends of the band-shaped body 20 are locked. The band-shaped body 20 are guided in the gap formed between the spacer rollers 15 and the transport roller 12.
The band-shaped body 20 are made of steel or a plastic of low strength and are wound on the winding rollers 21. When wound up, the band-shaped bodies 20 have a rectangular profile cross-section. The band-shaped body 20 are plastically deformed so that they pass in the transition from the rolled state to an extended position in a profile cross-section, which has an increased moment of resistance against a bending load. Corresponding to the band-shaped bodies 20 imprinted plastic deformations, these can during the transition to the extended position a curved profile cross-section, as he z. B. in so-called rolling meters use, pass. However, it is also possible to impart to the band-shaped bodies 20 such a plastic deformation that during the transition to the extended position the profile cross-section has two curvatures or other profile cross-sections are formed which increase the resistance moment against bending (FIG. 3).
Of the arranged on the support rod 18 bobbins 21, the band-shaped body 20 are guided against the action of the rewind force of the winding rollers 21 above the sheet pile 2 with the free end to the clamping rod 22 and clamped there, preferably the concave shapes of the band-shaped body 20, the at Transition from the rolled in the stretched state arise, facing away from the sheet pile 2. This eliminates the risk that the sheet 1 guided by the band-shaped bodies 20 will be damaged by its edge, it being possible to provide the band-shaped bodies 20 with a casing which is low in friction comprising the sheet 1 to be transported. Due to the inventive design of the band-shaped body 20 they have a high inherent rigidity in the unrolled state, so that only small clamping forces, which are applied by the winding rollers 21, are required to realize the necessary rigidity of the sheet guiding device 19.
In a known manner, the respective uppermost sheet 1 of the sheet stack 2 is lifted by the separating suction 6 and thus isolated in the sheet processing machine facing away from the area. By means of the stylus foot 4, the loosening blowers 9 and the side blowers 16, an air cushion is built up under the sheet 1 covered by the transport suckers 8 and thus the sheet 1 is completely separated from the sheet stack 2 and lifted against the band-shaped bodies 20 of the sheet guiding device 19. Subsequently, the sheet 1 is transferred to the transport suction 8 and transported through this in the sheet conveying direction 17, wherein the sheet flap 10 is pivoted by rotation of the flap shaft 11 and the clock rollers 14 are lifted. The sheet 1 is guided by the band-shaped bodies 20 of the sheet guiding device 19. After the sheet 1 has arrived in the area transport roller 12 / clock roller 14, the clock rollers 14 are controlled against the transport roller 12 and the sheet 1 transported in the downstream machine, the sheet 1 is released from the transport suckers 8.
If it is necessary to move the sheet separator 3 for format adaptation in or against the sheet conveying direction 17, the band-shaped body 20 are wound by the rewinding force of the winding rollers 21 or unwound against this rewinding force. If sheets 1 are to be processed whose format lies between maximum sheet format 2.1 and minimum sheet format 2.2, the sheet guiding elements not required for bowing can be removed by releasing the free end of this band-shaped body 20 from the clamping rod 22 and the band-shaped body 20 on the winding roll 21 is wound up.

Aufstellung der verwendeten Bezugszeichen

1
Bogen
2
Bogenstapel
2.1
Maximales Bogenformat
2.2
Minimales Bogenformat
3
Bogentrenner
4
Tasterfuß
5
Bogentrenneinrichtung
6
Trennsauger
7
Bogentransporteinrichtung
8
Transportsauger
9
Lockerungsbläser
10
Bogenklappe
11
Klappenwelle
12
Transportwalze
13
Welle
14
Taktrolle
15
Distanzrolle
16
Seitenbläser
17
Bogenförderrichtung
18
Tragstange
19
Bogenleiteinrichtung
20
Bandförmiger Körper
21
Wickelrolle
22
Klemmstange
List of used reference numbers
1
bow
2
sheet pile
2.1
Maximum sheet size
2.2
Minimal sheet format
3
sheet separator
4
Tasterfuß
5
Sheet separator
6
suction separator
7
Sheet transport device
8th
transport sucker
9
loosening blowers
10
bow flap
11
flap shaft
12
transport roller
13
wave
14
synchronizing roller
15
Spacing roller
16
page blowers
17
Sheet conveying direction
18
supporting rod
19
sheet guiding device
20
Band-shaped body
21
reel
22
clamping rod

Claims (6)

Bogenleiteinrichtung für Bogenanleger mit einem die Bogen (1) vereinzelnden und fördernden, zur Formatanpassung in und entgegen der Bogenförderrichtung (17) verschiebbaren Bogentrenner (3) sowie mit Blaseinrichtungen (9, 16) zum Aufbauen eines die Bogenförderung unterstützenden Luftpolsters und eine eine Bogenförderebene der Bogen (1) begrenzende, aus einzelnen Bogenleitelementen bestehende Bogenleiteinrichtung (19), wobei die Bogenleitelemente aus einem bandförmigen Körper (20) und wenigstens einer durch eine Rückspulkraft beaufschlagbaren Wickelrolle (21) bestehen, dadurch gekennzeichnet, dass die bandförmigen Körper (20) nach dem Übergang von den Wickelrollen (21) in eine Strecklage eine das Widerstandsmoment gegen Biegung erhöhende Ausbildung aufweisen.Sheet guiding device for sheet feeder with a sheet (1) isolating and conveying, for format adjustment in and against the sheet conveying direction (17) displaceable sheet separator (3) and with blowing devices (9, 16) for building a sheet conveying the supporting air cushion and a sheet conveying plane of the sheet (1) limiting, consisting of individual sheet guiding elements sheet guiding device (19), wherein the sheet guiding elements consist of a band-shaped body (20) and at least one acted upon by a rewinding winding roller (21), characterized in that the band-shaped body (20) after the transition from the winding rollers (21) in an extended position have a resistance moment against bending increasing training. Bogenleiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die bandförmigen Körper (20) eine oder mehrere in Längsrichtung verlaufende Verformungen aufweisen.Sheet guiding device according to claim 1, characterized in that the band-shaped bodies (20) have one or more longitudinally extending deformations. Bogenleiteinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Verformungen als Wölbungen ausgebildet sind.Sheet guiding device according to claim 2, characterized in that the deformations are formed as bulges. Bogenleiteinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die konvexe Ausbildung der Wölbungen zu dem Bogen (1) hin gerichtet ist.Sheet guiding device according to claim 3, characterized in that the convexity of the convexities is directed towards the sheet (1). Bogenleiteinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die bandförmigen Körper (20) aus Metall oder Kunststoff bestehen.Sheet guiding device according to claim 2, characterized in that the band-shaped bodies (20) consist of metal or plastic. Bogenleiteinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die bandförmigen Körper (20) mit einer Umhüllung versehen sind, welche eine geringe Reibung gegenüber den Bogen (1) aufweist.Sheet guiding device according to claim 5, characterized in that the band-shaped bodies (20) are provided with a casing which has a low friction with respect to the sheets (1).
EP07114944.7A 2006-08-25 2007-08-24 Sheet guide device for sheet feeders Active EP1892206B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610039986 DE102006039986A1 (en) 2006-08-25 2006-08-25 Sheet guiding device for sheet feeder

Publications (3)

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EP1892206A2 true EP1892206A2 (en) 2008-02-27
EP1892206A3 EP1892206A3 (en) 2009-07-22
EP1892206B1 EP1892206B1 (en) 2016-01-27

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DE (1) DE102006039986A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817287A1 (en) * 1987-05-29 1988-12-15 Polygraph Leipzig Sheet transfer device in sheet feeders
DE19537284C1 (en) * 1995-10-06 1996-10-24 Heidelberger Druckmasch Ag Sheet guide unit for sheet feeder attachment of printing machine
DE202005018169U1 (en) * 2005-11-22 2006-01-12 Man Roland Druckmaschinen Ag Sheet guide for document stacker has multiple small sheet guides of fixed length which can be retracted when not needed
EP1770036A1 (en) * 2005-09-29 2007-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Sheet guiding device for sheet feeder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD261574A1 (en) * 1987-05-29 1988-11-02 Polygraph Leipzig sheet guiding device
DE19713919C1 (en) * 1997-04-04 1998-07-02 Kba Planeta Ag Sheet guide for sheet feeder
DE29805409U1 (en) * 1998-03-25 1998-05-20 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Sheet guiding device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817287A1 (en) * 1987-05-29 1988-12-15 Polygraph Leipzig Sheet transfer device in sheet feeders
DE19537284C1 (en) * 1995-10-06 1996-10-24 Heidelberger Druckmasch Ag Sheet guide unit for sheet feeder attachment of printing machine
EP1770036A1 (en) * 2005-09-29 2007-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Sheet guiding device for sheet feeder
DE202005018169U1 (en) * 2005-11-22 2006-01-12 Man Roland Druckmaschinen Ag Sheet guide for document stacker has multiple small sheet guides of fixed length which can be retracted when not needed

Also Published As

Publication number Publication date
EP1892206A3 (en) 2009-07-22
DE102006039986A1 (en) 2008-02-28
EP1892206B1 (en) 2016-01-27

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