EP1080028A2 - Device for transporting sheet-like articles - Google Patents

Device for transporting sheet-like articles

Info

Publication number
EP1080028A2
EP1080028A2 EP99945987A EP99945987A EP1080028A2 EP 1080028 A2 EP1080028 A2 EP 1080028A2 EP 99945987 A EP99945987 A EP 99945987A EP 99945987 A EP99945987 A EP 99945987A EP 1080028 A2 EP1080028 A2 EP 1080028A2
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
transport
conveyed
pressure elements
roller
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
EP99945987A
Other languages
German (de)
French (fr)
Other versions
EP1080028B1 (en
Inventor
Erwin Demmeler
Wolfgang König
Norbert Beck
Mario MÖNCH
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.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
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 Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP1080028A2 publication Critical patent/EP1080028A2/en
Application granted granted Critical
Publication of EP1080028B1 publication Critical patent/EP1080028B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/025—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/324—Inclined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/262—Arrangements of belts facing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the invention relates to a device for transporting sheet-like conveyed goods between a conveyor belt and a guide means, which each rest on one of the two opposite sides of the conveyed goods.
  • Devices of this type are used in particular in paper conveyor technology, for example in printing machines, copiers, document processing machines and the like, and in banknote processing machines.
  • DE 43 02827 AI proposes the arrangement of means for causing magnetic and / or electromagnetic forces. Such an arrangement is obviously associated with a significant effort and energy consumption and moreover very quickly leads to problems of electromagnetic compatibility. In addition, problems with the sensors used there are also to be expected, particularly when used in banknote checking devices.
  • the invention is therefore based on the object of a device for
  • the solution according to the invention is characterized in particular by the fact that the sheet-like material is guided flatly on the one hand through the conveyor belt, which However, due to the elastic loading by the pressure elements, it always ensures a sufficient contact force between the sheet material and the conveyor belt.
  • the pressure elements are designed as rotatably mounted rollers. Rolling bearings are particularly suitable for this, as they require little maintenance and are particularly inexpensive as standard components.
  • Leaf springs are particularly suitable for guiding and elastic pretensioning of the pressure elements, since they can perform both functions with minimal effort and installation space.
  • a preferred embodiment of the invention provides that a roller conveyor with rotatably mounted rollers is provided as the guide means.
  • the roller conveyor consists of rollers which are elastically loaded in the direction of the conveyor belt. Part of the fluctuation in the thickness of the sheet material can then be compensated for by the movement of the pressure elements and the remainder by the displacement of the guide means.
  • the pressure elements and the rollers of the roller conveyor are preferably arranged in pairs opposite one another. Particularly good guidance of the goods to be transported is achieved if the roller conveyor has cylindrical rollers, since in this way a linear clamping action is applied to the goods to be transported, as a result of which the predetermined direction of transport is reliably maintained.
  • a particularly maintenance and user-friendly embodiment of the invention provides that the conveyor belt and the guide means on the one hand and the pressure elements on the other hand are each arranged in a section of a folding scaffold.
  • the device has a transport channel into which both the conveyor belt and the guide means protrude.
  • This transport channel covers the maximum possible sheet format to be conveyed and ensures that disruptive influences are kept away from the transport path, especially in the area of the sheet side edges, where there is a risk of dog-ear formation.
  • FIG. 1 shows an enlarged detail from FIG. 1
  • Fig. 3 is a front view of the transport device in the direction of the longitudinal axis of the conveyor belt and
  • Fig. 4 is an illustration of the transport device with the transport channel opened.
  • Fig. 1 shows a side view of the transport route of a banknote processing machine.
  • a high level of safety and reliability is essential, especially as the value of the transported goods, access to the transported goods themselves must always be controlled.
  • fluctuations in quality and thickness of the goods to be transported occur precisely in such applications, which results in extremely difficult conditions for a reliable mode of transport.
  • Fig. 1 shows an elastic conveyor belt 1, which is guided around the deflection rollers 2 to 6 and around the drive roller 7 and the tensioning roller 8.
  • the tensioning roller 8 is vertically displaceably mounted, so that the tension in the conveyor belt 1 can be adjusted by appropriate displacement.
  • the drive roller 7 is connected to a drive motor, not shown.
  • the horizontally extending transport channel 9 is formed by two parallel channel walls 10 and 11.
  • the transport channel 9 has between the deflection rollers 2 and 3 an arcuate angled downward. The radius of this arc corresponds to the roller radius of the deflection roller 2.
  • the conveyor belt 1 runs in an S-shaped manner.
  • the bank notes to be transported are fed to the transport device.
  • the direction of rotation of the conveyor belt 1 is indicated by the arrow 12.
  • the lower run of the conveyor belt 1, which runs between the deflection roller 2 and the drive roller 7, is located approximately in the middle between the two channel walls 10 and 11.
  • the channel wall 10 lies within the area encircled by the conveyor belt 1, while the Channel wall 11 is below the lower belt run.
  • the channel wall 10 on the side facing away from the conveyor belt 1, several pairs of threaded bushes 13a are pressed, which each clamp in pairs by means of screws 13 screwed in a leaf spring 14, of which by the supporting bolts 13 facing sections 15 are fork-shaped.
  • These sections 15 each comprise roller bearings 16 along their end faces and lie pretensioned from above on the axles 17 which support the roller bearings 16 and are connected to the axle 17 by means of a welding point 18 on the side of the roller bearing 16.
  • the roller bearings 16 partially project through corresponding window-like cutouts 19 in the channel wall.
  • the window-like cutouts 19 provided for the roller bearings 16 and the guidance of the axes 17 through the fork-shaped sections 15 of the leaf springs 14 can be clearly seen in the illustration according to FIG. 4.
  • Rolling bearings 20 are arranged opposite each of the roller bearings 16 on the other side of the conveyor belt, which roller bearings 20 are guided by means of a floating bearing in a support bar 21 which runs parallel to the conveyor belt 1 and is connected to the channel wall 11 to form a right angle.
  • roller bearings 20 are each screwed to the support bar 21 by means of a screw 22.
  • the roller bearings 20 also protrude through correspondingly arranged window-like recesses in the channel wall 11 into the transport channel 9, so that the conveyor belt 1 can roll on them.
  • the roller bearings 16 and 20 each have a cylindrical shape, so that a clamping line is formed between them and the conveyor belt 1 and the sheet material to be conveyed. This makes the sheet material to be conveyed particularly safe guided and prevents skewing.
  • the width of the transport channel is dimensioned such that even the largest sheet format to be transported can be completely taken up by the transport channel 9.
  • the distance between individual pairs of roller bearings 16 and 20 in the transport direction is dimensioned such that even with the smallest sheet format to be transported, the goods to be transported are always acted upon by at least two pairs of roller bearings 16 and 20. This can be clearly seen in FIG. 2 on the bank note 23 with the front edge 24 and the rear edge 25 located in the transport path.
  • a sheet switch 26 is provided approximately in the middle of the conveying channel, by means of which sheet material can be discharged from the transport channel 9. Due to the elastic loading of the conveyor belt 1 by the preloaded roller bearings 16, thickness differences of the material to be conveyed can be compensated for directly at each individual clamping point between opposing roller bearings 16 and 20, so that reliable conveying is also provided when sheet material of very different thickness is very close to one another to be transported. In particular, this prevents buckling or curling of lobed sheets.
  • the transport channel 9 can be opened very easily for maintenance, inspection purposes or to remove jams, as a result of which the entire transport route and all elements involved in the conveyance are very easily accessible.
  • the channel wall 10, which supports the roller bearings 16, is pivotally connected to the base part 31 by a joint 30, while the channel wall 11 and the axes of the deflection, drive or tensioning roller 2 to 8 are fixedly connected to this base frame are.
  • the channel wall 10 can be pivoted about the joint 30, so as to release the transport channel 9.
  • Sheet material 23 which may still be in the transport channel 9 is now held between the conveyor belt 1 and at least two roller bearings 20 without being acted upon by the prestressed roller bearings 16.

Abstract

A device for transporting sheetlike material is proposed wherein the material to be conveyed is always held between a conveyer belt (1) and a guide means (20) each lying against one of the opposite sides of the material (23). In order to maintain a reliable transport function even with fluctuating sheet thickness, it is provided that the run of the conveyer belt facing the material (23) is loaded elastically in the direction of the material (23) by pressure elements (14, 16).

Description

Einrichtung zum Transportieren von blattförmigem Fördergut Device for transporting sheet-like conveyed goods
Die Erfindung betrifft eine Einrichtung zum Transportieren von blattförmi- gern Fördergut zwischen einem Förderband und einem Führungsmittel, welche jeweils an einer der beiden gegenüberliegenden Seiten des Fördergutes anliegen. Derartige Einrichtungen werden insbesondere in der Papierfördertechnik beispielsweise in Druckmaschinen, Kopierern, Belegverarbeitungsmaschinen und dergleichen sowie in Banknotenbearbeitungsmaschi- nen eingesetzt.The invention relates to a device for transporting sheet-like conveyed goods between a conveyor belt and a guide means, which each rest on one of the two opposite sides of the conveyed goods. Devices of this type are used in particular in paper conveyor technology, for example in printing machines, copiers, document processing machines and the like, and in banknote processing machines.
Auf dem Gebiet des Banknotentransportes ist es beispielsweise aus der DE 43 02827 AI bekannt, Banknoten zwischen zwei sich gleich schnell und in die gleiche Richtung bewegenden Transportbändern zu transportieren. Die- ses Transportverfahren ist zum einen mit einem aufwendigen und wartungsintensiven Bandführungssystem verbunden und es bedarf regelmäßig sehr vieler Bandumlenkpunkte, um eine genügend starke Klerirmkraft auf die Banknoten zu übertragen um diese reibschlüssig zu fördern. Zur Verbesserung der Haftreibung zwischen den umlaufenden Förderbändern schlägt die DE 43 02 827 AI das Anordnen von Mitteln zum Hervorrufen magnetischer und/ oder elektromagnetischer Kräfte vor. Eine solche Anordnung ist ganz offensichtlich mit einem bedeutenden Aufwand und Energieverbrauch verbunden und führt darüber hinaus sehr schnell zu Problemen der elektromagnetischen Verträglichkeit. Darüber hinaus sind auch, insbesondere beim Einsatz in Banknotenprüfeinrichtungen, Probleme mit den dort eingesetzten Sensoren zu erwarten.In the field of banknote transport, it is known, for example from DE 43 02827 AI, to transport banknotes between two conveyor belts moving at the same speed and in the same direction. On the one hand, this transport process is connected to a complex and maintenance-intensive belt guide system, and a large number of belt deflection points are regularly required in order to transfer a sufficiently strong clerical force to the banknotes in order to promote them in a friction-locked manner. To improve the static friction between the rotating conveyor belts, DE 43 02 827 AI proposes the arrangement of means for causing magnetic and / or electromagnetic forces. Such an arrangement is obviously associated with a significant effort and energy consumption and moreover very quickly leads to problems of electromagnetic compatibility. In addition, problems with the sensors used there are also to be expected, particularly when used in banknote checking devices.
Aus der DE 28 57883 C2 ist es bekannt, Banknoten zwischen einem Transportband und einer feststehenden Platte zu fördern. Eine solche Einrichtung hat insbesondere den Nachteil, daß sie durch die einseitig aufgebrachte hohe Reibung an der stehenden Wand dazu neigt, die Banknoten zu knittern oder zu verklemmen.From DE 28 57883 C2 it is known to convey banknotes between a conveyor belt and a fixed plate. Such a device has the particular disadvantage that it is due to the high applied on one side Friction against the standing wall tends to wrinkle or jam the banknotes.
Ein weiteres Problem, welches beim Fördern mittels Transportbändern auf- tritt, ist die Undefinierte Klemrnkraft, die das Band auf die zu fördernden Banknoten insbesondere dann ausübt, wenn Banknoten unterschiedlicher Dicke mit kurzen Abständen hintereinander gefördert werden. Liegt beispielsweise eine dünne Banknote in Transportrichtung gesehen zwischen zwei deutlich dickeren Banknoten, so wird auf diese dünnere Banknote eine wesentlich geringere Reibkraft übertragen als auf die beiden benachbarten dickeren Banknoten.Another problem which arises when conveying by means of conveyor belts is the undefined clamping force which the belt exerts on the banknotes to be conveyed, in particular when banknotes of different thicknesses are conveyed in short intervals. If, for example, a thin banknote lies between two significantly thicker banknotes, viewed in the direction of transport, a considerably lower frictional force is transmitted to this thinner banknote than to the two adjacent thicker banknotes.
Zur Förderung von Blattgut ist darüber hinaus aus der DE 29 14 969 AI bekannt, das Blattgut zwischen einer Reihe von fest gelagerten und einer wei- teren Reihe von angefederten Rollen zu transportieren. Eine solche Anordnung hat den Nachteil, daß im Bereich zwischen zwei Rollenpaaren das Blattgut beidseitig ungerührt ist und somit leicht ein Knittern oder Verklemmen eintreten kann.To promote sheet material is also known from DE 29 14 969 AI to transport the sheet material between a number of fixed and another row of spring-loaded rollers. Such an arrangement has the disadvantage that, in the area between two pairs of rollers, the sheet material is unstirred on both sides and can therefore easily cause creasing or jamming.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Einrichtung zumThe invention is therefore based on the object of a device for
Transportieren von blattförmigem Fördergut zu schaffen, welche selbst bei hohen Fördergeschwindigkeiten eine sichere Transportfunktion auch bei schwankender Blattstärke garantiert und dabei einfach im Aufbau und wartungsfreundlich ist.To transport sheet-shaped goods to be conveyed, which guarantees a safe transport function even with fluctuating sheet thickness even at high conveyor speeds and is simple in construction and easy to maintain.
Diese Aufgabe wird durch eine Einrichtung gemäß Anspruch 1 gelöst.This object is achieved by a device according to claim 1.
Die erfindungsgemäße Lösung zeichnet sich insbesondere dadurch aus, daß das blattförmige Gut einerseits flächig durch das Förderband geführt ist, die- ses jedoch aufgrund der elastischen Beaufschlagung durch die Andruckelemente stets eine ausreichende Anpreßkraft zwischen Blattgut und Förderband sicherstellt.The solution according to the invention is characterized in particular by the fact that the sheet-like material is guided flatly on the one hand through the conveyor belt, which However, due to the elastic loading by the pressure elements, it always ensures a sufficient contact force between the sheet material and the conveyor belt.
Vorteilhaft in bezug auf Verschleiß und Energieverbrauch ist es, wenn die Andruckelemente als drehbar gelagerte Rollen ausgebildet sind. Hierzu eignen sich insbesondere Wälzlager, welche wartungsarm und als Normbauteile auch besonders kostengünstig sind.With regard to wear and energy consumption, it is advantageous if the pressure elements are designed as rotatably mounted rollers. Rolling bearings are particularly suitable for this, as they require little maintenance and are particularly inexpensive as standard components.
Zur Führung und elastischen Vorspannung der Andruckelemente eignen sich besonders Blattfedern, da diese bei minimalem Aufwand und Einbauraum beide Funktionen übernehmen können.Leaf springs are particularly suitable for guiding and elastic pretensioning of the pressure elements, since they can perform both functions with minimal effort and installation space.
Eine bevorzugte Ausführungsform der Erfindung sieht vor, daß als Füh- rungsmittel eine Rollenbahn mit drehbar gelagerten Rollen vorgesehen ist. Insbesondere, wenn sehr große Schwankungen in der Blattstärke des Transportgutes zu erwarten sind, ist es von Vorteil, wenn die Rollenbahn aus in Richtung auf das Förderband elastisch beaufschlagten Rollen besteht. So kann dann ein Teil der Dickenschwankung des Blattgutes durch die Bewe- gung der Andruckelemente und der übrige Teil durch die Verschiebung des Führungsmittels ausgeglichen werden.A preferred embodiment of the invention provides that a roller conveyor with rotatably mounted rollers is provided as the guide means. In particular, if very large fluctuations in the sheet thickness of the goods to be transported are to be expected, it is advantageous if the roller conveyor consists of rollers which are elastically loaded in the direction of the conveyor belt. Part of the fluctuation in the thickness of the sheet material can then be compensated for by the movement of the pressure elements and the remainder by the displacement of the guide means.
Vorzugsweise sind die Andruckelemente und die Rollen der Rollenbahn paarweise gegenüberliegend angeordnet. Eine besonders gute Führung des Transportgutes wird erreicht, wenn die Rollenbahn zylindrische Rollen aufweist, da auf diese Weise eine linienförmige Klemmbeaufschlagung des Transportgutes erfolgt, wodurch die vorgegebene Transportrichtung sicher beibehalten wird. Eine besonders wartungs- und bedienungsfreundliche Ausführungsform der Erfindung sieht vor, daß das Förderband sowie das Führungsmittel einerseits und die Andruckelemente andererseits in jeweils einem Abschnitt eines aufklappbaren Gerüstes angeordnet sind.The pressure elements and the rollers of the roller conveyor are preferably arranged in pairs opposite one another. Particularly good guidance of the goods to be transported is achieved if the roller conveyor has cylindrical rollers, since in this way a linear clamping action is applied to the goods to be transported, as a result of which the predetermined direction of transport is reliably maintained. A particularly maintenance and user-friendly embodiment of the invention provides that the conveyor belt and the guide means on the one hand and the pressure elements on the other hand are each arranged in a section of a folding scaffold.
Unterstützend auf die Transportsicherheit wirkt es sich aus, wenn die Einrichtung einen Transportkanal aufweist, in den sowohl das Förderband, als auch das Führungsmittel hineinragt. Dieser Transportkanal deckt möglichst das maximal zu fördernde Blattformat ab und stellt sicher, daß störende Einflüsse vom Transportweg, vor allem im Bereich der Blattseitenkanten, wo die Gefahr der Bildung von Eselsohren besteht, ferngehalten werden.It has a supporting effect on transport security if the device has a transport channel into which both the conveyor belt and the guide means protrude. This transport channel covers the maximum possible sheet format to be conveyed and ensures that disruptive influences are kept away from the transport path, especially in the area of the sheet side edges, where there is a risk of dog-ear formation.
Weitere vorteilhafte Merkmale sowie der Aufbau und die Funktion der Erfindung ergeben sich aus nachstehender Beschreibung eines Ausführungs- beispieles anhand der Zeichnung. Hierzu zeigt:Further advantageous features and the structure and function of the invention result from the following description of an exemplary embodiment with reference to the drawing. This shows:
Fig. 1 eine Seitenansicht der Transporteinrichtung,1 is a side view of the transport device,
Fig. 2 einen vergrößerten Ausschnitt aus Fig. 1,2 shows an enlarged detail from FIG. 1,
Fig. 3 eine Vorderansicht der Transporteinrichtung in Richtung der Längs achse des Förderbandes undFig. 3 is a front view of the transport device in the direction of the longitudinal axis of the conveyor belt and
Fig. 4 eine Darstellung der Transporteinrichtung mit aufgeklapptem Transportkanal.Fig. 4 is an illustration of the transport device with the transport channel opened.
Fig. 1 zeigt in Seitenansicht die Transportstrecke einer Banknotenbearbeitungsmaschine. Gerade bei solchen Anwendungen ist ein hoher Sicherheitsund Zuverlässigkeitsstandard unabdingbar, zumal auf rund des Wertes des transportierten Gutes der Zugriff auf das Transportgut selbst stets kontrolliert sein muß. Darüber hinaus treten gerade bei solchen Anwendungen Qualitäts- und auch Dickenschwankungen des zu transportierenden Gutes auf, wodurch ausgesprochen schwierige Bedingungen für eine zuverlässige Transportweise gegeben sind.Fig. 1 shows a side view of the transport route of a banknote processing machine. In such applications in particular, a high level of safety and reliability is essential, especially as the value of the transported goods, access to the transported goods themselves must always be controlled. In addition, fluctuations in quality and thickness of the goods to be transported occur precisely in such applications, which results in extremely difficult conditions for a reliable mode of transport.
Fig. 1 zeigt ein elastisches Förderband 1, welches um die Umlenkrollen 2 bis 6 sowie um die Antriebsrolle 7 und die Spannrolle 8 geführt ist. Die Spannrolle 8 ist vertikal verschiebbar gelagert, so daß durch entsprechendes Verschieben die Zugspannung im Förderband 1 eingestellt werden kann. Die Antriebsrolle 7 ist mit einem nicht dargestellten Antriebsmotor verbunden. Der horizontal verlaufende Transportkanal 9 wird durch zwei parallel zueinander angeordnete Kanal wände 10 und 11 gebildet. Der Transportkanal 9 besitzt zwischen den Umlenkrollen 2 und 3 eine nach unten weisende bogen- förmige Abwinklung. Der Radius dieses Bogens entspricht dem Rollenradius der Umlenkrolle 2. Zwischen der Umlenkrolle 2, die das Förderband 1 auf der Aus-senseite beaufschlagt und der die Förderbandinnenseite beaufschlagenden Umlenkrolle 3 verläuft das Förderband 1 S-förmig geschwungen.Fig. 1 shows an elastic conveyor belt 1, which is guided around the deflection rollers 2 to 6 and around the drive roller 7 and the tensioning roller 8. The tensioning roller 8 is vertically displaceably mounted, so that the tension in the conveyor belt 1 can be adjusted by appropriate displacement. The drive roller 7 is connected to a drive motor, not shown. The horizontally extending transport channel 9 is formed by two parallel channel walls 10 and 11. The transport channel 9 has between the deflection rollers 2 and 3 an arcuate angled downward. The radius of this arc corresponds to the roller radius of the deflection roller 2. Between the deflection roller 2, which acts on the conveyor belt 1 on the outside and the deflection roller 3, which acts on the inside of the conveyor belt, the conveyor belt 1 runs in an S-shaped manner.
Von diesem bogenförmigen Abschnitt aus werden die zu transportierenden Banknoten der Transporteinrichtung zugeführt. Der Drehsinn des Förderbandes 1 ist durch den Pfeil 12 angedeutet. Das untere Trum des Förderbandes 1, welches zwischen der Umlenkrolle 2 und der Antriebsrolle 7 verläuft, befindet sich etwa mittig zwischen den beiden Kanalwänden 10 und 11. Da- bei liegt die Kanalwand 10 innerhalb des von dem Transportband 1 umlau- fenen Bereiches, während die Kanalwand 11 unterhalb des unteren Bandtrums liegt. In die Kanal wand 10 sind, wie insbesondere in Fig. 2 zu sehen ist, auf der vom Förderband 1 abgewandten Seite mehrere Paare von Gewindebuchsen 13a eingepreßt, welche jeweils paarweise mittels in dieselben eingeschraubten Schrauben 13 eine Blattfeder 14 einspannen, deren von den tragenden Bolzen 13 abgewandte Abschnitte 15 gabelförmig ausgebildet sind. Diese Abschnitte 15 umfassen jeweils Wälzlager 16 entlang deren Stirnseiten und liegen vorgespannt von oben auf den Achsen 17, welche die Wälzlager 16 tragen, auf und sind mittels eines Schweißpunktes 18 jeweils seitlich des Wälzlagers 16 mit der Achse 17 verbunden. Die Wälzlager 16 durchragen dabei teilweise entsprechende fensterartige Ausschnitte 19 der Kanalwand. Die für die Wälzlager 16 vorgesehenen fensterartigen Ausschnitte 19 sowie die Führung der Achsen 17 durch die gabelförmigen Abschnitte 15 der Blattfedern 14 sind in der Darstellung gemäß Fig. 4 gut erkennbar.From this arcuate section, the bank notes to be transported are fed to the transport device. The direction of rotation of the conveyor belt 1 is indicated by the arrow 12. The lower run of the conveyor belt 1, which runs between the deflection roller 2 and the drive roller 7, is located approximately in the middle between the two channel walls 10 and 11. The channel wall 10 lies within the area encircled by the conveyor belt 1, while the Channel wall 11 is below the lower belt run. In the channel wall 10, as can be seen in particular in Fig. 2, on the side facing away from the conveyor belt 1, several pairs of threaded bushes 13a are pressed, which each clamp in pairs by means of screws 13 screwed in a leaf spring 14, of which by the supporting bolts 13 facing sections 15 are fork-shaped. These sections 15 each comprise roller bearings 16 along their end faces and lie pretensioned from above on the axles 17 which support the roller bearings 16 and are connected to the axle 17 by means of a welding point 18 on the side of the roller bearing 16. The roller bearings 16 partially project through corresponding window-like cutouts 19 in the channel wall. The window-like cutouts 19 provided for the roller bearings 16 and the guidance of the axes 17 through the fork-shaped sections 15 of the leaf springs 14 can be clearly seen in the illustration according to FIG. 4.
Jeweils den Wälzlagern 16 gegenüberliegend sind auf der anderen Seite des Förderbandes 1 Wälzlager 20 angeordnet, welche mittels einer fliegenden Lagerung in einer Tragleiste 21 geführt sind, die parallel zum Förderband 1 verläuft und mit der Kanalwand 11 einen rechten Winkel bildend verbunden ist.Rolling bearings 20 are arranged opposite each of the roller bearings 16 on the other side of the conveyor belt, which roller bearings 20 are guided by means of a floating bearing in a support bar 21 which runs parallel to the conveyor belt 1 and is connected to the channel wall 11 to form a right angle.
Wie in Fig. 4 dargestellt, sind die Wälzlager 20 jeweils mittels einer Schraube 22 mit der Tragleiste 21 verschraubt. Auch die Wälzlager 20 ragen durch entsprechend angeordnete fensterartige Ausnehmungen in der Kanalwand 11 in den Transportkanal 9 hinein, so daß das Förderband 1 auf ihnen abrollen kann.As shown in Fig. 4, the roller bearings 20 are each screwed to the support bar 21 by means of a screw 22. The roller bearings 20 also protrude through correspondingly arranged window-like recesses in the channel wall 11 into the transport channel 9, so that the conveyor belt 1 can roll on them.
Die Wälzlager 16 und 20 besitzen jeweils zylindrische Form, so daß sich zwischen ihnen und dem Förderband 1 sowie dem zu fördernden Blattgut eine Klemmlinie bildet. Dadurch wird das zu fördernde Blattgut besonders sicher geführt und ein Schräglaufen verhindert. Um äußere Einflüsse auf den Transport des Blattgutes 23 auszuschließen, ist die Breite des Transportkana- les so dimensioniert, daß auch das größte zu transportierende Blattformat vollständig durch den Transportkanal 9 auf enommen werden kann. Der Abstand zwischen einzelnen Wälzlagerpaaren 16 und 20 in Transportrichtung ist so bemessen, daß auch bei kleinstem zu transportierenden Blattformat das Transportgut stets von mindestens zwei Wälzlagerpaaren 16 und 20 beaufschlagt ist. Dies ist in Fig. 2 an der sich in der Transportstrecke befindlichen Banknote 23 mit der Vorderkante 24 und der Hinterkante 25 deutlich zu erkennen.The roller bearings 16 and 20 each have a cylindrical shape, so that a clamping line is formed between them and the conveyor belt 1 and the sheet material to be conveyed. This makes the sheet material to be conveyed particularly safe guided and prevents skewing. In order to rule out external influences on the transport of the sheet material 23, the width of the transport channel is dimensioned such that even the largest sheet format to be transported can be completely taken up by the transport channel 9. The distance between individual pairs of roller bearings 16 and 20 in the transport direction is dimensioned such that even with the smallest sheet format to be transported, the goods to be transported are always acted upon by at least two pairs of roller bearings 16 and 20. This can be clearly seen in FIG. 2 on the bank note 23 with the front edge 24 and the rear edge 25 located in the transport path.
Wird nun der Transporteinrichtung ein Blatt über den bogenförmigen Abschnitt des Transportkanales 9 zugeführt, so wird dieses durch das Förderband 1 sowie die Umlenkrolle 2 erfaßt, im Bogen um 90° umgelenkt und gemäß Fig. 1 nach rechts befördert. Die erstmalige Beaufschlagung bzw.If a sheet is now fed to the transport device via the arcuate section of the transport channel 9, this is grasped by the conveyor belt 1 and the deflection roller 2, deflected in an arc by 90 ° and conveyed to the right according to FIG. 1. The first application or
Kontaktierung des Blattes durch das Förderband 1 erfolgt in einem Bereich, in welchem das Förderband bogenförmig verläuft mit der in dieser Phase gestauchten Bogeninnenseite. Diese Kontaktfläche wird im weiteren Förderverlauf gerade in der Transportrichtung ausgerichtet und die Stauchung somit abgebaut. Da sich während des geraden Ausrichtens des Förderbandes und des Blattes das hintere Blattende noch im Klemmeingriff zwischen Förderband 1 und Umlenkrolle 2 befindet, wird eine Zugspannung auf das Blatt übertragen, die es streckt bzw. glattzieht. Während des Transportes durch den Transportkanal 9 gelangt es nacheinander in linienförmige Klemmung mit den jeweiligen Wälzlagern 20 und unter Zwischenschaltung des Förderbandes 1 der vorgespannten Wälzlager 16. Auf diese Weise ist ein sicherer Geradeauslauf garantiert. Das Blattgut liegt also während des Transportes mit einer Seite stets flächig am mitlaufenden Förderband 1 und linienförmig nacheinander an den einzelnen Wälzlagern 20 an. Etwa in der Mitte des Förderkanales ist eine Blattweiche 26 vorgesehen, durch die ein Ausschleusen von Blattgut aus dem Transportkanal 9 möglich ist. Durch die elastische Beaufschlagung des Förderbandes 1 durch die vorgespannten Wälzlager 16 können Dickenunterschiede des Fördergutes an jeder einzelnen Klemmstelle zwischen jeweils gegenüberliegenden Wälzlagern 16 und 20 unmittelbar ausgeglichen werden, so daß eine sichere Förderung auch dann gegeben ist, wenn Blattgut von sehr unterschiedlicher Dicke sehr dicht hintereinander transportiert werden soll. Insbesondere wird dadurch das Einknicken oder Einrollen lappiger Blätter vermieden.Contacting of the sheet by the conveyor belt 1 takes place in an area in which the conveyor belt runs in an arc with the inside of the sheet compressed in this phase. This contact surface is aligned in the transport direction in the further course of the conveyance and the compression is thus reduced. Since the rear end of the sheet is still in clamping engagement between the conveyor belt 1 and the deflection roller 2 during the straight alignment of the conveyor belt and the sheet, tensile stress is transmitted to the sheet, which stretches or smoothes it. During transport through the transport channel 9, it comes successively into linear clamping with the respective roller bearings 20 and with the interposition of the conveyor belt 1 of the pretensioned roller bearings 16. In this way, safe straight running is guaranteed. During transport, the sheet material always rests with one side flat on the moving conveyor belt 1 and one after the other linearly on the individual roller bearings 20. A sheet switch 26 is provided approximately in the middle of the conveying channel, by means of which sheet material can be discharged from the transport channel 9. Due to the elastic loading of the conveyor belt 1 by the preloaded roller bearings 16, thickness differences of the material to be conveyed can be compensated for directly at each individual clamping point between opposing roller bearings 16 and 20, so that reliable conveying is also provided when sheet material of very different thickness is very close to one another to be transported. In particular, this prevents buckling or curling of lobed sheets.
Wie in den Fig. 3 und 4 dargestellt ist, kann der Transportkanal 9 zu Wartungs-, Inspektionszwecken oder aber zur Staubeseitigung sehr leicht geöffnet werden, wodurch die ganze Transportstrecke sowie alle an der Förderung beteiligten Elemente sehr gut zugänglich sind. Hierzu ist die Kanal- wand 10, welche die Wälzlager 16 trägt, durch ein Gelenk 30 schwenkbar mit dem Grund gesteil 31 verbunden, während die Kanalwand 11 sowie die Achsen der Umlenk-, Antriebs- bzw. Spannrolle 2 bis 8 fest mit diesem Grundgestell verbunden sind.As shown in FIGS. 3 and 4, the transport channel 9 can be opened very easily for maintenance, inspection purposes or to remove jams, as a result of which the entire transport route and all elements involved in the conveyance are very easily accessible. For this purpose, the channel wall 10, which supports the roller bearings 16, is pivotally connected to the base part 31 by a joint 30, while the channel wall 11 and the axes of the deflection, drive or tensioning roller 2 to 8 are fixedly connected to this base frame are.
Aus der in Fig. 3 dargestellten Grundstellung läßt sich nach Lösen des Verriegelungselementes 32 die Kanalwand 10 um das Gelenk 30 schwenken, um so den Transportkanal 9 freizugeben.From the basic position shown in FIG. 3, after releasing the locking element 32, the channel wall 10 can be pivoted about the joint 30, so as to release the transport channel 9.
Eventuell noch im Transportkanal 9 befindliches Blattgut 23 ist nun ohne die Beaufschlagung durch die vorgespannten Wälzlager 16 zwischen dem Förderband 1 und mindestens zwei Wälzlagern 20 gehalten. Sheet material 23 which may still be in the transport channel 9 is now held between the conveyor belt 1 and at least two roller bearings 20 without being acted upon by the prestressed roller bearings 16.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Vorrichtung zum Transportieren von blattförmigem Fördergut (23) zwischen einem Förderband (1) und einem Führungsmittel (20), wel- ehe jeweils an einer der beiden gegenüberliegenden Seiten des Fördergutes (23) anliegen, dadurch gekennzeichnet, daß das dem Fördergut (23) zugewandte Trum des Förderbandes (1) durch Andruckelemente (14, 16) elastisch in Richtung auf das Fördergut (23) belastet ist.1. A device for transporting sheet-like material to be conveyed (23) between a conveyor belt (1) and a guide means (20), which each rest on one of the two opposite sides of the material to be conveyed (23), characterized in that the material to be conveyed (23 ) facing strand of the conveyor belt (1) is elastically loaded by pressure elements (14, 16) in the direction of the material to be conveyed (23).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Andruckelemente als drehbar gelagerte Rollen (16) ausgebildet sind.2. Device according to claim 1, characterized in that the pressure elements are designed as rotatably mounted rollers (16).
3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Wälzlager (16) als Andruckelemente vorgesehen sind.3. Device according to one of the preceding claims, characterized in that rolling bearings (16) are provided as pressure elements.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Andruckelemente mittels Blattfedern (14) geführt und vorgespannt sind.4. Device according to one of the preceding claims, characterized in that the pressure elements are guided and biased by means of leaf springs (14).
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Führungsmittel eine Rollenbahn (20) vorgesehen ist.5. Device according to one of the preceding claims, characterized in that a roller conveyor (20) is provided as the guide means.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die6. The device according to claim 5, characterized in that the
Rollenbahn (20) aus in Richtung auf das Förderband (1) elastisch beaufschlagten Rollen besteht. Roller conveyor (20) consists of elastically loaded rollers in the direction of the conveyor belt (1).
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Andruckelemente (14, 16) und die Rollen der Kugelbahn (20) paarweise gegenüberliegend angeordnet sind.7. The device according to claim 6, characterized in that the pressure elements (14, 16) and the rollers of the ball track (20) are arranged in pairs opposite one another.
8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die Rollenbahn zylindrische Rollen (20) aufweist.8. Device according to one of claims 5 to 7, characterized in that the roller conveyor has cylindrical rollers (20).
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Förderband (1) sowie das Führungsmittel (20) einerseits und die Andruckelemente (14, 16) andererseits in jeweils einem Abschnitt eines aufklappbaren Gerüstes angeordnet sind.9. Device according to one of the preceding claims, characterized in that the conveyor belt (1) and the guide means (20) on the one hand and the pressure elements (14, 16) on the other hand are each arranged in a section of a hinged frame.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung einen Transportkanal (9) auf- weist, in den sowohl das Förderband (1) -als auch das Führungsmittel10. Device according to one of the preceding claims, characterized in that the device has a transport channel (9) in which both the conveyor belt (1) and the guide means
(20) hineinragt. (20) protrudes.
EP99945987A 1998-09-04 1999-08-17 Device for transporting sheet-like articles Expired - Lifetime EP1080028B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19840420 1998-09-04
DE19840420A DE19840420A1 (en) 1998-09-04 1998-09-04 Device for transporting sheet-like conveyed goods
PCT/EP1999/006026 WO2000013995A2 (en) 1998-09-04 1999-08-17 Device for transporting sheet-like articles

Publications (2)

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EP1080028A2 true EP1080028A2 (en) 2001-03-07
EP1080028B1 EP1080028B1 (en) 2004-08-11

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US (1) US6371480B1 (en)
EP (1) EP1080028B1 (en)
JP (1) JP4064061B2 (en)
AT (1) ATE273223T1 (en)
AU (1) AU5852799A (en)
DE (2) DE19840420A1 (en)
RU (1) RU2237002C2 (en)
WO (1) WO2000013995A2 (en)

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Publication number Publication date
AU5852799A (en) 2000-03-27
DE59910212D1 (en) 2004-09-16
US6371480B1 (en) 2002-04-16
JP2002524366A (en) 2002-08-06
DE19840420A1 (en) 2000-03-09
WO2000013995A2 (en) 2000-03-16
ATE273223T1 (en) 2004-08-15
JP4064061B2 (en) 2008-03-19
RU2237002C2 (en) 2004-09-27
WO2000013995A3 (en) 2000-12-07
EP1080028B1 (en) 2004-08-11

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