EP0155475A1 - Apparatus for removing sheets from a pile and for transporting the sheets from the pile - Google Patents

Apparatus for removing sheets from a pile and for transporting the sheets from the pile Download PDF

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Publication number
EP0155475A1
EP0155475A1 EP85101008A EP85101008A EP0155475A1 EP 0155475 A1 EP0155475 A1 EP 0155475A1 EP 85101008 A EP85101008 A EP 85101008A EP 85101008 A EP85101008 A EP 85101008A EP 0155475 A1 EP0155475 A1 EP 0155475A1
Authority
EP
European Patent Office
Prior art keywords
stack
sheets
guide block
groove
vacuum
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
EP85101008A
Other languages
German (de)
French (fr)
Other versions
EP0155475B1 (en
Inventor
Karl-Fritz Heina
Adolf Hornung
Kurt Dipl.-Ing. Wörner
Klaus Dr. Ing. Wolf
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Priority to AT85101008T priority Critical patent/ATE24305T1/en
Publication of EP0155475A1 publication Critical patent/EP0155475A1/en
Application granted granted Critical
Publication of EP0155475B1 publication Critical patent/EP0155475B1/en
Expired legal-status Critical Current

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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
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B65H3/128—Suction bands or belts separating from the top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/323—Overhead suction belt, i.e. holding material against gravity

Definitions

  • the invention relates to a device for removing sheets from a stack and for transporting the sheets away from the stack with an endlessly circulating belt which is provided with a plurality of perforations, and with a guide block which is stationary with respect to the stack and has a groove in the guide surface thereof , the depth of which essentially corresponds to the band thickness and the width of which essentially corresponds to the band width, and which has a suction opening which can be connected to a vacuum source and which is assigned to the openings in the band.
  • Such a device known from DE-AS 12 79 396 is used for the optional removal of letters in two directions with the aid of two parallel flat suction belts which are guided endlessly by guide rollers and are provided with openings. These openings are assigned suction openings in a guide block, which can be connected to a suction chamber with the interposition of a slide are, which can be connected to a vacuum source.
  • the suction belts run in recesses in the guide block such that they are flush with the outer surface of the guide block on the arc side.
  • a suction effect which is not precisely definable in terms of strength is present above the suction surface, that is to say in the direction of tape travel and also transversely thereto, so that a large oversizing of the suction vacuum is required to ensure the desired suction effect.
  • the object on which the invention is based is therefore to design the device of the type mentioned at the outset in such a way that, when a weak vacuum is used, a large suction force can be achieved in a predetermined areal distribution and dynamic range.
  • the endless belt is a toothed belt
  • the teeth facing the stack are delimited by groove side walls to form chambers, and which has at least one opening between two teeth, and that one to the Recessing opening, which extends in the guide block in the sheet discharge direction and is assigned to the openings, is provided.
  • the device according to the invention it is possible to use low vacuums of, for example, 0.3 bar, as can be generated with a side channel compressor, and nevertheless achieve a large suction force due to the large suction area, which is caused by the vacuum within the chambers between the Teeth of the toothed belt and the groove side walls come into effect.
  • the valve is arranged directly on the guide block in association with the suction opening and the vacuum to be evacuated is therefore small, furthermore because the vacuum initially forms primarily in the suction chambers above the suction opening directly connected to the valve.
  • An adjustment of the suction zone is also possible in that the groove side walls end at a distance from the tape run-off side of the guide block, since this removes the lateral guidance of the toothed belt and thus also the lateral limitation of the suction zone before the end of the guide block.
  • the length of the transport path over the device receiving the sheet can be adjusted without changing the spatial assignment of the device carrying the sheet stack and the device receiving the sheet discharged from the device, usually an alignment table .
  • the device according to the invention can also be used for the removal of sheets from the underside of a stack. This makes it possible to make a fold machine to transport incoming folded sheets at right angles, to collect them in a stack forming a buffer and to continuously remove them from this stack for further processing. In spite of right-angled sheet deflection, overall, very high sheet throughput speeds can be achieved by one system.
  • the described device according to the invention enables a considerable increase in the number of sheets transported per hour, which is of the order of 60,000, since the valve switching times can be kept very short.
  • the suction of air through the toothed belt against the guide surface of the guide block ensures that an air cushion is always present between the toothed belt surface on the guide surface and the guide surface, so that there is no direct contact between the toothed belt and the guide surface and the toothed belt runs smoothly over the guide surface .
  • the device shown in FIG. 1 is arranged above a sheet stack 1, from which the uppermost sheet 2 is to be removed and transported away.
  • the device consists of a drive roller 3 and two guide rollers 4 and 5 and a tension roller 6, over which an endless belt in the form of a toothed belt 15 is guided.
  • the rollers are mounted on a plate 8, on which a mounting flange 9 is attached, which can be fixed with the help of holes 10 on a machine part, not shown.
  • the tensioning roller 6 is adjustable in an elongated hole 7 in the plate 8.
  • the device is positioned so that the toothed belt 15 rotates between the guide rollers 4 and 5 essentially parallel above the stack 1.
  • the toothed belt 15 is guided over a flat guide surface of a guide block 11, which is formed by the bottom of a groove 16 in the guide block 11 on the side facing the stack 1.
  • the guide block 11 extends with an inlet section over the stack 1 and projects with an outlet section over the stack 1, the running direction of the toothed belt 15 being illustrated by the arrows 28.
  • the toothed belt 15 has teeth 21 arranged at a distance, which form chambers 22 between them, into each of which an opening 17 provided between two teeth 21 opens.
  • the chambers 22 are laterally delimited by groove side walls 25.
  • a suction opening 18 opens into the bottom of the groove 16 and merges into a bore 19.
  • valve 12 which is connected via a vacuum opening 14 to a vacuum source, not shown, for example a side channel compressor, and which has an electrically controlled control part 13.
  • a vacuum source not shown, for example a side channel compressor
  • the construction of the valve 12 with the control part 13 is known.
  • Fig. 3 the valve 12 and its valve piston 23 are shown schematically for illustration.
  • the vacuum is clock-controlled via the valve 12 and the B OH tion 19 in the suction opening 18 and in contact therewith through holes 17 in the toothed belt 15 for exposure, whereby air is sucked in, which a cushion between the bottom of the groove 16 and the toothed belt 15 for its smooth running, while at the same time the top sheet 2 is sucked in by the vacuum from the stack 1 (FIG. 1) and transported away by the toothed belt 15 in the direction of arrow 28.
  • the suction opening 18 has a recess 20 which extends in the direction of the sheet run-off, which is illustrated by the arrow 28 and which likewise opens into the groove bottom and extends over the openings 17.
  • the vacuum applied via the suction opening 18 also acts in the recess 20, although weakened in the direction of the sheet run-off.
  • the sheet outlet side extends The end wall 26 of the groove side walls 25 does not extend as far as the end wall 27 of the guide block 11 on the arc outlet side, so that the suction effect from the end wall 26 of the groove side walls 25 is eliminated.
  • the guide block 11 can be fixed to the plate 8 (FIG. 1) by screws, not shown, which are screwed into bores 24 (FIG. 3) in the guide block 11.

Abstract

A guide block (11) has a groove (16) with a flat floor cut into it, in which an endless belt (15) containing perforations (17) travels. A suction opening (18) opens into the floor of the groove (16), to which a vacuum is periodically applied by means of a valve (12). The endless belt (15) travels over a stack (1) of sheets (2) by means of guide rollers (4,5) and a drive roller (3). The vacuum, when periodically applied by the valve (12), operates through the perforations (17) so that the topmost sheet (2) of the stack (1) is sucked against the endless belt (15) and carried away in the same direction (28). One preferred form of the endless belt (15) is a toothed belt, with spaces between the teeth (21) that form vacuum chambers (22). With this compact and therefore easily positionable device, sheets (2) are sucked up from a stack (1) and transported away while maintaining their orientation, meaning that very high production rates are attained.

Description

Die Erfindung betrifft eine Vorrichtung zur Abnahme von Bogen von einem Stapel und zum Transport der Bogen weg vom Stapel mit einem endlos umlaufenden Band, das mit einer Vielzahl von Durchbrechungen versehen ist, und mit einem bezüglich des Stapels ortsfesten Führungsblock, in dessen Führungsfläche eine Nut ausgespart ist, deren Tiefe im wesentlichen der Bandstärke und deren Weite im wesentlichen der Bandbreite entspricht, und der eine mit einer Vakuumquelle verbindbare Saugöffnung aufweist, die den Durchbrechungen in dem Band zugeordnet ist.The invention relates to a device for removing sheets from a stack and for transporting the sheets away from the stack with an endlessly circulating belt which is provided with a plurality of perforations, and with a guide block which is stationary with respect to the stack and has a groove in the guide surface thereof , the depth of which essentially corresponds to the band thickness and the width of which essentially corresponds to the band width, and which has a suction opening which can be connected to a vacuum source and which is assigned to the openings in the band.

Eine solche, aus der DE-AS 12 79 396 bekannte Vorrichtung dient zum wahlweisen Abtransport von Briefen in zwei Richtungen mit Hilfe von zwei parallelen flachen Saugbändern, die endlos von Führungswalzen geführt und mit Durchbrechungen versehen sind. Diesen Durchbrechungen sind Saugöffnungen in einem Führungsblock zugeordnet, die unter Zwischenschaltung eines Schiebers mit einer Saugkammer verbindbar sind, welche an eine Vakuumquelle anschließbar ist. Die Saugbänder laufen dabei in Aussparungen im Führungsblock derart, daß sie mit der bogenseitigen Außenfläche des Führungsblocks bündig abschließen.Such a device known from DE-AS 12 79 396 is used for the optional removal of letters in two directions with the aid of two parallel flat suction belts which are guided endlessly by guide rollers and are provided with openings. These openings are assigned suction openings in a guide block, which can be connected to a suction chamber with the interposition of a slide are, which can be connected to a vacuum source. The suction belts run in recesses in the guide block such that they are flush with the outer surface of the guide block on the arc side.

Bei dieser Ausgestaltung der Vorrichtung ist über der Saugfläche, also in Bandlaufrichtung und auch quer dazu, eine stärkenmäßig nicht genau definierbare Saugwirkung vorhanden, so daß zur Gewährleistung der gewünschten Saugwirkung eine große Überdimensionierung des Saugvakuums erforderlich ist.In this embodiment of the device, a suction effect which is not precisely definable in terms of strength is present above the suction surface, that is to say in the direction of tape travel and also transversely thereto, so that a large oversizing of the suction vacuum is required to ensure the desired suction effect.

Die der Erfindung zugrundeliegende Aufgabe besteht deshalb darin, die Vorrichtung der eingangs genannten Art so auszubilden, daß bei Einsatz eines schwachen Vakuums eine große Ansaugkraft in vorgegebener flächenmäßiger Verteilung und Dynamik erreicht werden kann.The object on which the invention is based is therefore to design the device of the type mentioned at the outset in such a way that, when a weak vacuum is used, a large suction force can be achieved in a predetermined areal distribution and dynamic range.

Diese Aufgabe wird bei der Vorrichtung der eingangs genannten Art dadurch gelöst, daß das endlose Band ein Zahnriemen ist, dessen dem Stapel zugewandte Zähne von Nutseitenwänden unter Bildung von Kammern begrenzt sind, und der zwischen zwei Zähnen wenigstens eine Durchbrechung aufweist, und daß eine an die Saugöffnung anschließende, sich im Führungsblock in Bogenablaufrichtung erstreckende, den Durchbrechungen zugeordnete Ausnehmung vorgesehen ist.This object is achieved in the device of the type mentioned in that the endless belt is a toothed belt, the teeth facing the stack are delimited by groove side walls to form chambers, and which has at least one opening between two teeth, and that one to the Recessing opening, which extends in the guide block in the sheet discharge direction and is assigned to the openings, is provided.

Mit der erfindungsgemäßen Vorrichtung ist es möglich, geringe Vakua von beispielsweise 0,3 bar, wie sie sich mit einem Seitenkanalverdichter erzeugen lassen, einzusetzen und trotzdem aufgrund der großen Saugfläche eine große Ansaugkraft zu erreichen, die durch das Vakuum innerhalb der Kammern zwischen den Zähnen des Zahnriemens und den Nutseitenwänden zur Wirkung gelangen. Dabei ist auch eine hohe Dynamik gegeben, da das Ventil direkt auf dem Führungsblock in Zuordnung zur Saugöffnung angeordnet und damit das zu evakuierende Vakuum klein ist, ferner, da sich das Vakuum zunächst primär in den Saugkammern über der mit dem Ventil direkt verbundenen Saugöffnung ausbildet. Gleichzeitig entsteht auch eine große Fernwirkung bei der Ansaugung der vom Stapel abzuhebenden Bogen, da die Strömungsgeschwindigkeit der angesaugten Luft infolge der anfangs kleinen Querschnitte besonders hoch ist. Aufgrund des anfangs großen Strömungswiderstandes baut sich das Vakuum in der mit den Saugöffnungen verbundenen Ausnehmung und über die zugehörigen Durchbrechungen in den zugeordneten Ansaugkammern zwischen den Zahnriemenzähnen erst später auf, wobei ein sicherer Abtransport des Bogens gewährleistet ist.With the device according to the invention, it is possible to use low vacuums of, for example, 0.3 bar, as can be generated with a side channel compressor, and nevertheless achieve a large suction force due to the large suction area, which is caused by the vacuum within the chambers between the Teeth of the toothed belt and the groove side walls come into effect. There is also a high level of dynamism, since the valve is arranged directly on the guide block in association with the suction opening and the vacuum to be evacuated is therefore small, furthermore because the vacuum initially forms primarily in the suction chambers above the suction opening directly connected to the valve. At the same time, there is also a great long-distance effect when suctioning the sheets to be lifted from the stack, since the flow speed of the sucked-in air is particularly high due to the initially small cross sections. Due to the initially large flow resistance, the vacuum builds up later in the recess connected to the suction openings and via the associated openings in the associated suction chambers between the toothed belt teeth, with the sheet being reliably transported away.

Eine Einstellung der Saugzone ist auch dadurch möglich, daß die Nutseitenwände im Abstand von der Bandablaufseite des Führungsblocks enden, da dadurch die seitliche Führung des Zahnriemens und somit auch die seitliche Begrenzung der Saugzone vor dem Ende des Führungsblocks aufgehoben wird.An adjustment of the suction zone is also possible in that the groove side walls end at a distance from the tape run-off side of the guide block, since this removes the lateral guidance of the toothed belt and thus also the lateral limitation of the suction zone before the end of the guide block.

Wenn der Führungsblock in Bandlaufrichtung bezüglich des Stapels verstellbar ist, läßt sich dadurch ohne Veränderung der räumlichen Zuordnung der den Bogenstapel tragenden Einrichtung und der den von der Vorrichtung abgeführten Bogen aufnehmenden Einrichtung, gewöhnlich einem Ausrichtetisch, die Länge des Transportweges über der den Bogen aufnehmenden Einrichtung einstellen.If the guide block is adjustable with respect to the stack in the direction of tape travel, the length of the transport path over the device receiving the sheet can be adjusted without changing the spatial assignment of the device carrying the sheet stack and the device receiving the sheet discharged from the device, usually an alignment table .

Die erfindungsgemäße Vorrichtung läßt sich auch zum Abtransport von Bogen von der Unterseite eines Stapels einsetzen. Dadurch ist es möglich, aus einer Falzmaschine kommende gefalzte Bogen im rechten Winkel dazu abzutransportieren, in einem einen Puffer bildenden Stapel zu sammeln und von diesem Stapel kontinuierlich für die weitere Bearbeitung abzuführen. Dadurch könnnen trotz rechtwinkliger Bogenumlenkung insgesamt gesehen sehr hohe Bogendurchlaufgeschwindigkeiten durch eine Anlage erreicht werden.The device according to the invention can also be used for the removal of sheets from the underside of a stack. This makes it possible to make a fold machine to transport incoming folded sheets at right angles, to collect them in a stack forming a buffer and to continuously remove them from this stack for further processing. In spite of right-angled sheet deflection, overall, very high sheet throughput speeds can be achieved by one system.

Die beschriebene erfindungsgemäße Vorrichtung ermöglicht eine erhebliche Steigerung der pro Stunde abtransportierten Bogen, die in die Größenordnung von 60000 geht, da die Ventilschaltzeiten sehr kurz gehalten werden können.The described device according to the invention enables a considerable increase in the number of sheets transported per hour, which is of the order of 60,000, since the valve switching times can be kept very short.

Außerdem wird durch die Ansaugung von Luft durch den Zahnriemen gegen die Führungsfläche des Führungsblocks erreicht, daß zwischen der führungsflächenseitigen Zahnriemenoberfläche und der Führungsfläche immer ein Luftpolster vorhanden ist, so daß ein direkter Kontakt zwischen Zahnriemen und Führungsfläche nicht stattfindet und der Zahnriemen reibungsarm über die Führungsfläche läuft.In addition, the suction of air through the toothed belt against the guide surface of the guide block ensures that an air cushion is always present between the toothed belt surface on the guide surface and the guide surface, so that there is no direct contact between the toothed belt and the guide surface and the toothed belt runs smoothly over the guide surface .

Anhand von Zeichnungen werden Ausführungsbeispiele der Erfindung näher erläutert. Es zeigt:

  • Fig. 1 schematisch eine Seitenansicht einer Ausführungsform der Vorrichtung,
  • Fig. 2 im Schnitt II-II von Fig. 3 den Führungsblock mit Zahnriemen,
  • Fig. 3 den Schnitt III-III von Fig. 2.
Exemplary embodiments of the invention are explained in more detail with reference to drawings. It shows:
  • 1 schematically shows a side view of an embodiment of the device,
  • 2 in section II-II of Fig. 3, the guide block with toothed belt,
  • 3 shows the section III-III of Fig. 2nd

Die in Fig. 1 gezeigte-Vorrichtung ist über einem Bogenstapel 1 angeordnet, von welchem der oberste Bogen 2 abgenommen und wegtransportiert werden soll. Die Vorrichtung besteht aus einer Antriebwalze 3 und zwei Führungswalzen 4 und 5 sowie einer Spannwalze 6, über die ein endloses Band in Form eines Zahnriemens 15 geführt ist. Die Walzen sind an einer Platte 8 gelagert, an der ein Befestigungsflansch 9 angebracht ist, der mit Hilfe von Bohrungen 10 an einem nicht gezeigten Maschinenteil festlegbar ist. Die Spannwalze 6 ist in einem Langloch 7 in der Platte 8 verstellbar. Die Vorrichtung ist so positioniert, daß der Zahnriemen 15 zwischen den Führungswalzen 4 und 5 im wesentlichen parallel oberhalb des Stapels 1 umläuft.The device shown in FIG. 1 is arranged above a sheet stack 1, from which the uppermost sheet 2 is to be removed and transported away. The device consists of a drive roller 3 and two guide rollers 4 and 5 and a tension roller 6, over which an endless belt in the form of a toothed belt 15 is guided. The rollers are mounted on a plate 8, on which a mounting flange 9 is attached, which can be fixed with the help of holes 10 on a machine part, not shown. The tensioning roller 6 is adjustable in an elongated hole 7 in the plate 8. The device is positioned so that the toothed belt 15 rotates between the guide rollers 4 and 5 essentially parallel above the stack 1.

Dabei ist der Zahnriemen 15 über eine ebene Führungsfläche eines Führungsblocks 11 geführt, die von dem Boden einer Nut 16 im Führungsblock 11 auf der dem Stapel 1 zugewandten Seite gebildet wird. Der Führungsblock 11 erstreckt sich mit einem Zulaufabschnitt über dem Stapel 1 und ragt mit einem Ablaufabschnitt über den Stapel 1 vor, wobei die Laufrichtung des Zahnriemens 15 durch die Pfeile 28 veranschaulicht ist.The toothed belt 15 is guided over a flat guide surface of a guide block 11, which is formed by the bottom of a groove 16 in the guide block 11 on the side facing the stack 1. The guide block 11 extends with an inlet section over the stack 1 and projects with an outlet section over the stack 1, the running direction of the toothed belt 15 being illustrated by the arrows 28.

Wie in Fig. 2 und 3 gezeigt ist, hat der Zahnriemen 15 im Abstand angeordnete Zähne 21, die zwischen sich Kammern 22 bilden, in die jeweils eine zwischen zwei Zähnen 21 vorgesehene Durchbrechung 17 mündet. Die Kammern 22 sind seitlich von Nutseitenwänden 25 begrenzt. Im Boden der Nut 16 mündet eine Saugöffnung 18, die in eine Bohrung 19 übergeht.As shown in FIGS. 2 and 3, the toothed belt 15 has teeth 21 arranged at a distance, which form chambers 22 between them, into each of which an opening 17 provided between two teeth 21 opens. The chambers 22 are laterally delimited by groove side walls 25. A suction opening 18 opens into the bottom of the groove 16 and merges into a bore 19.

In der Bohrung 19 sitzt, wie in Fig. 1 gezeigt ist, ein Ventil 12, das über eine Vakuumöffnung 14 mit einer nicht gezeigten Vakuumquelle, beispielsweise einem Seitenkanalverdichter, verbunden ist und das einen elektrisch angesteuerten Steuerteil 13 aufweist. Die Bauweise des Ventils 12 mit Steuerteil 13 ist bekannt. In Fig. 3 sind schematisch zur Veranschaulichung das Ventil 12 und sein Ventilkolben 23 dargestellt. Das Vakuum kommt taktgesteuert über das Ventil 12 und die Boh- rung 19 in der Saugöffnung 18 und den damit in Kontakt stehenden Durchbrechungen 17 im Zahnriemen 15 zur Einwirkung, wodurch Luft angesaugt wird, die ein Polster zwischen dem Boden der Nut 16 und dem Zahnriemen 15 für dessen reibungsfreien Lauf bildet, wobei gleichzeitig durch das Vakuum der oberste Bogen 2 vom Stapel 1 (Fig. 1) angesaugt und vom Zahnriemen 15 in Richtung des Pfeils 28 abtransportiert wird.In the bore 19, as shown in FIG. 1, there is a valve 12, which is connected via a vacuum opening 14 to a vacuum source, not shown, for example a side channel compressor, and which has an electrically controlled control part 13. The construction of the valve 12 with the control part 13 is known. In Fig. 3 the valve 12 and its valve piston 23 are shown schematically for illustration. The vacuum is clock-controlled via the valve 12 and the B OH tion 19 in the suction opening 18 and in contact therewith through holes 17 in the toothed belt 15 for exposure, whereby air is sucked in, which a cushion between the bottom of the groove 16 and the toothed belt 15 for its smooth running, while at the same time the top sheet 2 is sucked in by the vacuum from the stack 1 (FIG. 1) and transported away by the toothed belt 15 in the direction of arrow 28.

Die Saugöffnung 18 hat eine sich in Bogenablaufrichtung, die durch den Pfeil 28 veranschaulicht ist, erstreckende Ausnehmung 20, die ebenfalls in den Nutboden mündet und sich über den Durchbrechungen 17 erstreckt. Das über die Saugöffnung 18 angelegte Vakuum wirkt auch in der Ausnehmung 20, wenn auch in Bogenablaufrichtung abgeschwächt. Wie aus Fig. 2 zu ersehen ist, erstreckt sich die bogenablaufseitige Stirnwand 26 der Nutseitenwände 25 nicht bis zur bogenablaufseitigen Stirnwand 27 des Führungsblocks 11, so daß die Saugwirkung ab der Stirnwand 26 der Nutseitenwände 25 aufgehoben ist.The suction opening 18 has a recess 20 which extends in the direction of the sheet run-off, which is illustrated by the arrow 28 and which likewise opens into the groove bottom and extends over the openings 17. The vacuum applied via the suction opening 18 also acts in the recess 20, although weakened in the direction of the sheet run-off. As can be seen from Fig. 2, the sheet outlet side extends The end wall 26 of the groove side walls 25 does not extend as far as the end wall 27 of the guide block 11 on the arc outlet side, so that the suction effect from the end wall 26 of the groove side walls 25 is eliminated.

Der Führungsblock 11 kann durch nicht gezeigte Schrauben an der Platte 8 (Fig. 1) festgelegt werden, die in Bohrungen 24 (Fig. 3) im Führungsblock 11 geschraubt sind.The guide block 11 can be fixed to the plate 8 (FIG. 1) by screws, not shown, which are screwed into bores 24 (FIG. 3) in the guide block 11.

Claims (4)

1. Vorrichtung zur Abnahme von Bogen von einem Stapel und zum Transport der Bogen weg vom Stapel mit einem endlos umlaufenden Band, das mit einer Vielzahl von Durchbrechungen versehen ist, und mit einem bezüglich des Stapels ortsfesten Führungsblock, in dessen Führungsfläche eine Nut ausgespart ist, deren Tiefe im wesentlichen der Bandstärke und deren Weite im wesentlichen der Bandbreite entspricht, und der eine mit einer Vakuumquelle verbindbare Saugöffnung aufweist, die den Durchbrechungen in dem Band zugeordnet ist, dadurch gekennzeichnet, daß das endlose Band (15) ein Zahnriemen ist, dessen dem Stapel (1) zugewandten Zähne (21) von Nutseitenwänden (25) unter Bildung von Kammern (22) begrenzt sind, und der zwischen zwei Zähnen (21) wenigstens eine Durchbrechung (17) aufweist, und daß eine an die Saugöffnung (18) anschließende, sich im Führungsblock (11) in Bogenablaufrichtung (28) erstreckende, den Durchbrechungen (17) zugeordnete Ausnehmung (20) vorgesehen ist.1. Apparatus for removing sheets from a stack and for transporting the sheets away from the stack with an endlessly circulating belt which is provided with a multiplicity of openings and with a guide block which is stationary with respect to the stack and in the guide surface of which a groove is recessed, the depth of which essentially corresponds to the band thickness and the width of which essentially corresponds to the band width, and which has a suction opening which can be connected to a vacuum source and which is assigned to the openings in the band, characterized in that the endless band (15) is a toothed belt, the Stack (1) facing teeth (21) are delimited by groove side walls (25) to form chambers (22), and which has at least one opening (17) between two teeth (21) and that adjoins the suction opening (18) , In the guide block (11) in the sheet discharge direction (28) extending, the openings (17) assigned recess (20) is provided. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nutseitenwände (25) im Abstand von der Bandablaufseite (27) des Führungsblocks (11) enden.2. Device according to claim 1, characterized in that the groove side walls (25) end at a distance from the tape discharge side (27) of the guide block (11). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Führungsblock (11) in Bandlaufrichtung (28) bezüglich des Stapels (1) verstellbar ist.3. Apparatus according to claim 1 or 2, characterized in that the guide block (11) in the tape running direction (28) with respect to the stack (1) is adjustable. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie der Unterseite eines Stapels (2) zum Abtransport von Bogen (1) zugeordnet ist.4. Device according to one of the preceding claims, characterized in that it is assigned to the underside of a stack (2) for the removal of sheets (1).
EP85101008A 1984-03-19 1985-01-31 Apparatus for removing sheets from a pile and for transporting the sheets from the pile Expired EP0155475B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101008T ATE24305T1 (en) 1984-03-19 1985-01-31 DEVICE FOR TAKING SHEETS FROM A STACK AND TRANSPORTING THE SHEETS AWAY FROM THE STACK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3410026 1984-03-19
DE3410026A DE3410026C1 (en) 1984-03-19 1984-03-19 Device for removing sheets from a stack and for transporting the sheets away from the stack

Publications (2)

Publication Number Publication Date
EP0155475A1 true EP0155475A1 (en) 1985-09-25
EP0155475B1 EP0155475B1 (en) 1986-12-17

Family

ID=6230946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101008A Expired EP0155475B1 (en) 1984-03-19 1985-01-31 Apparatus for removing sheets from a pile and for transporting the sheets from the pile

Country Status (6)

Country Link
US (1) US4643412A (en)
EP (1) EP0155475B1 (en)
JP (1) JPS612631A (en)
AT (1) ATE24305T1 (en)
CA (1) CA1237452A (en)
DE (1) DE3410026C1 (en)

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DE8912276U1 (en) * 1989-10-16 1989-11-30 Maschinenbau Oppenweiler Binder Gmbh & Co, 7155 Oppenweiler, De
DE4105388A1 (en) * 1991-02-21 1992-08-27 Werner Bonnet DEVICE FOR GRIPING AND TRANSPORTING OBJECTS
EP1153865A1 (en) * 2000-05-13 2001-11-14 Franz Gremser GmbH & Co. KG Suction roll
CN104003219A (en) * 2013-02-27 2014-08-27 株式会社东芝 Paper sheet pickup device and paper sheet processing apparatus

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US4635921A (en) * 1985-11-06 1987-01-13 Xerox Corporation Front air knife top vacuum corrugation feeder
US4678176A (en) * 1985-11-06 1987-07-07 Xerox Corporation Front air knife top vacuum corrugation feeder
US4627605A (en) * 1985-11-06 1986-12-09 Xerox Corporation Front air knife top vacuum corrugation feeder
US4768769A (en) * 1986-12-19 1988-09-06 Xerox Corporation Low cost rear air knife top vacuum corrugation feeder
AU647941B2 (en) * 1991-07-12 1994-03-31 De Beers Industrial Diamond Division (Proprietary) Limited Diamond synthesis
DE4126546C1 (en) * 1991-08-10 1992-10-01 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5301834A (en) * 1993-01-21 1994-04-12 The Lift Ticket Card vending machine
GB2276871B (en) * 1993-04-07 1997-04-23 Licentia Gmbh Method of and apparatus for separately removing flat articles from a stack
US5664773A (en) * 1995-06-07 1997-09-09 Hunter Douglas Inc. Strip conveyor and stacker
DE19544684A1 (en) * 1995-11-30 1997-06-05 Kodak Ag Device for removing and transferring plate-shaped objects from a stack with a suction device
DE19632657C1 (en) * 1996-08-13 1997-09-18 Binder & Co Masch Oppenweiler Device for removing sheets from stack
DE19648742C2 (en) * 1996-11-25 1999-06-24 Binder & Co Masch Oppenweiler Device for removing sheets from a stack and for transporting the sheets away from the stack
DE19716297C2 (en) * 1997-04-18 2003-02-27 Santrade Ltd Double belt system
AT411990B (en) * 1999-09-08 2004-08-26 Waagner Biro Binder Ag EMPTY SACK SINGULATION
JP3434252B2 (en) * 1999-11-08 2003-08-04 シャープ株式会社 Recording medium transport device
US6439563B1 (en) * 2000-01-18 2002-08-27 Currency Systems International, Inc. Note feeder
US20020121074A1 (en) * 2001-03-02 2002-09-05 Optima Machinery Corporation Bag loading method and assembly for a bag filling station
US6672038B2 (en) 2001-03-02 2004-01-06 Optima Machinery Corporation Bag manipulating method and assembly for a bag filling station
DE60107648T2 (en) * 2001-04-03 2005-12-15 Mars Incorporated Banknote storage device
US8137252B2 (en) * 2003-05-12 2012-03-20 Ishida Co., Ltd. Packaging bag supply device and bagging device having the same
JP6989945B2 (en) * 2017-09-27 2022-01-12 株式会社サム技研 Booklet cover flipping device

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DE8912276U1 (en) * 1989-10-16 1989-11-30 Maschinenbau Oppenweiler Binder Gmbh & Co, 7155 Oppenweiler, De
DE4105388A1 (en) * 1991-02-21 1992-08-27 Werner Bonnet DEVICE FOR GRIPING AND TRANSPORTING OBJECTS
EP1153865A1 (en) * 2000-05-13 2001-11-14 Franz Gremser GmbH & Co. KG Suction roll
CN104003219A (en) * 2013-02-27 2014-08-27 株式会社东芝 Paper sheet pickup device and paper sheet processing apparatus
CN104003219B (en) * 2013-02-27 2016-06-01 株式会社东芝 Paper sheet pickup device and bill handling device

Also Published As

Publication number Publication date
CA1237452A (en) 1988-05-31
ATE24305T1 (en) 1987-01-15
JPH025649B2 (en) 1990-02-05
JPS612631A (en) 1986-01-08
US4643412A (en) 1987-02-17
EP0155475B1 (en) 1986-12-17
DE3410026C1 (en) 1990-01-04

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