EP1084072B1 - Device and method for individually separating a pile of sheetlike data recording media - Google Patents

Device and method for individually separating a pile of sheetlike data recording media Download PDF

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Publication number
EP1084072B1
EP1084072B1 EP99923578A EP99923578A EP1084072B1 EP 1084072 B1 EP1084072 B1 EP 1084072B1 EP 99923578 A EP99923578 A EP 99923578A EP 99923578 A EP99923578 A EP 99923578A EP 1084072 B1 EP1084072 B1 EP 1084072B1
Authority
EP
European Patent Office
Prior art keywords
feed device
rest
singling
retaining
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99923578A
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German (de)
French (fr)
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EP1084072A1 (en
Inventor
Erwin Demmeler
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
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Giesecke and Devrient GmbH
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Publication of EP1084072A1 publication Critical patent/EP1084072A1/en
Application granted granted Critical
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    • 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
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5238—Retainers of the pad-type, e.g. friction pads
    • 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
    • B65H3/34—Article-retaining devices controlling the release of the articles to the separators
    • 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 and a method for separating a stack of sheet-like recording media.
  • banknote processing machines used to stack individual banknotes of a banknote to be handed over to a transport system which stores the banknotes for promotes further processing to test, sorting and stacking facilities.
  • a transport system which stores the banknotes for promotes further processing to test, sorting and stacking facilities.
  • the throughput of a banknote processing system becomes very essential determined by the performance of the singler.
  • EP 0 535 407 B1 describes a separating device for paper sheets known in which the sheet stack rests on a lifting device, which can be moved up and down between conveyor belts. Through the up and down Movement of the lifting device are pre-separation rollers, which are resiliently biased, together with the front they grasp Section of the sheet stack lifted off the conveyor belts this lowered.
  • the separation gap is between a feed roller and a fixed separating roller, the Separating roller the following lying on the paper sheet to be separated Hold back leaves.
  • EP 0 267 665 A1 describes a device in which a Stack by a substantially vertical movement of a pad of a conveyor is lifted when the front end of the bottom Leaf has already passed a restraint. The front end of the bottom sheet is passed by the corresponding after passing the restraint device Rolls continue to be pressed against the conveyor while the rear end of the sheet with the remaining stack from the conveyor remains lifted. This will remove the bottom sheet deducted.
  • the invention has for its object a device and a method to separate sheet-shaped recording media, which also with different sheet quality of the record carriers work with high throughput and high functional reliability. In doing so the recording media are also separated in a particularly gentle manner become.
  • the solution according to the invention results in a cyclical interruption the loading of the stack by a feed device and synchronized a change in the width of the separation gap for this process.
  • Very high can be achieved with the solution according to the invention Achieve throughputs without interference through jammed recording media, even if the stack of media with very different Quality (e.g. roughness, limpness, thickness, etc.).
  • Record carriers are particularly accurate even with different lengths adjust and adhere.
  • the restraining force can be exerted on the recording medium dispense very finely, which ensures the best possible protection the record carrier is achieved.
  • Fig. 1 shows a separating device for banknote stacks (30), which in an input pocket, not shown, can be inserted.
  • the one in the direction of separation short sides of the banknotes are shown on the Banknote contact surface 3 aligned.
  • the input tray is facing down through the upper run of the conveyor belt 4 and the rocker pad 5 limited edition.
  • the rocker pad 5 is in the form of two ledge-shaped components, which on a common holder 6 are attached and each on one side of the conveyor belt 4 parallel to this get lost.
  • the holder 6 is a rotatingly driven cam disk 7 assigned, which controls the lifting movement of the rocker pad 5.
  • the conveyor belt 4 runs between the drive roller 8 and the deflection roller 9 and is approximately below the bank note contact surface 3 by a Support roller 10 acted upon.
  • the restraint 13 Above the upper run of the conveyor belt 4, for example between the drive roller 8 and the support roller 10 is the restraint 13, which is rotatably mounted about the pivot axis 14.
  • a total of four retaining skids 15 are attached are aligned on the rocker pad 5 or on the conveyor belt 4.
  • How 2 shows the two outer retaining skids 15 provided above the rocker pad 5, while the two middle Retaining skids 15a on corresponding grooves 16, which are in the longitudinal direction of the conveyor belt 4 are aligned, aligned.
  • the grooves 16 and the retaining skids 15 each have a rectangular cross section.
  • the pressure rollers 17 are fastened on a common axis of rotation, which freely rotatable and vertically displaceable in an elongated hole in the restraint 13 is performed.
  • the restraint is based on its own weight and / or a biasing element, not shown, on the rocker pad 5 from. Alternatively, a direct coupling of the restraint device is also possible 13 and rocker pad 5 possible.
  • the directed towards the conveyor belt 4 Pivotal movement is limited by a stop 19, which means an adjusting wheel 20 and the retaining bracket 13a of the retaining device 13 adjusted and can thus be adapted to the banknote quality.
  • the Adjustment wheel 20 projects through a window in banknote contact surface 3 through, so that it is always accessible without much effort. To the Adjust or readjust the position of the retaining skids 15 in the vertical direction to be able to, these can be acted upon by the adjusting screw 21.
  • Fig. 1 shows the lifting movement of the Rocker pad 5.
  • the rocker pad becomes like this during the lifting movement shifted that the banknote stack 30 first with that of the retainer opposite end is lifted from the conveyor belt 4 and first with the end facing the restraint back on the Conveyor belt 4 is placed. This ensures that the bottom sheet is always pulled and not pushed. This can either as shown, done by a pivoting movement of the rocker pad 5 or also by a pure lifting movement, the rocker pad 5 with aligned at an angle of a few degrees to the upper run of the conveyor belt 4 is.
  • the movement of the rocker pad 5 causes the restraint device, which at the clamping point 32 via the two outer Retaining skids 15 rests on the rocker support 5, raised or lowered.
  • the restraint device 13 is pivoted about the pivot axis 14, whereby the alignment also by means of the banknote contact surface 3 the banknotes generates positive shaking motion becomes.
  • Fig. 2a represents the phase at which the rocker pad 5 is lifted from the conveyor belt 4 at most.
  • the Separation gap which by the retaining skids 15a and the corresponding Grooves 16 of the conveyor belt 4 is formed at this time opened to the maximum and the clamping force at the clamping points 32 between the retaining skids 15 and the rocker pad 5 is at a maximum.
  • This separation phase corresponds to the position of the rocker pad in dashed lines Representation in Fig. 1st
  • the banknote stack 30 is lifted off the conveyor belt 4 at this time and between the top of the conveyor belt 4 and the lower edge of the Retaining skids 15a remain a gap 33 of approximately one banknote thickness, the are about 0.1 to 0.2 mm. From this position, the rocker pad 5 lowered so that first, as shown in Fig. 2b, the bottom of the Retaining skids 15a and the surface of the conveyor belt 4 on a common one Level, d. H. the separation gap is closed, but there is still no intermeshing between the conveyor belt and the retaining skids instead of.
  • the distance 33 thus corresponds to 0 mm and at the clamping point 32 still finds a contact between the retaining skids 15 and Rocker pad 5 instead, due to the elasticity of the rocker pad 5 arise however, no significant clamping forces at the clamping point 32.
  • Banknote BN of the banknote stack 30 in contact with the permanently circulating Conveyor belt 4 and moves in the direction of the separation gap.
  • the bank note can be placed on the rocker support 5 despite the Retaining skids 15 by the action of the conveyor belt 4 in the Separation gap can be pushed because the retaining skids are opposite the upper run of the conveyor belt 4 and the rocker pad 5 an opening angle have.
  • the next banknote is due to the friction pulled a piece between the two banknotes, but through the retaining skids 15, 15a retained.
  • next banknote is with its leading edge at the separation gap, that is to say on the retaining skids 15; who are already
  • the bottom banknote in the separating gap is replaced by the Conveyor belt 4 moves on until it is gripped by the transport roller 12, which is then available for onward transport.
  • the length of the gap between two banknotes can be directly influenced. If the cam disk 7 runs synchronously with the conveyor belt, for example, the gap is only the length of the neighboring one Banknotes dependent. When separating a stack of banknotes of the same length then there are constant gaps.
  • the frictional forces must be between the lowest banknote and the conveyor belt 4 may be greater than the frictional forces between the first and second banknotes.
  • the conveyor belt 4 in a further embodiment of the invention with two sections evenly distributed around the circumference, each with a perforated pattern provided which with a suction box 11, which is between the drive roller 8 and the support roller 10, over which the conveyor belt 4 runs, and the one port, not shown, for connecting to a vacuum source owns, cooperate.
  • one of the perforated areas of the conveyor belt lies in the area of the front edge the banknote and strengthens it while moving over the suction box 11 the liability between the conveyor belt 4 and the bottom banknote.
  • the length of the conveyor belt or the distance between the two Hole patterns are chosen so that during a complete revolution two banknotes are separated.
  • FIG 3 shows the further embodiment and one of the two hole patterns shown with individual holes 40 in a position above the suction box 11.
  • the vacuum in the suction box 11 for example is controllable by a valve unit.
  • the conveyor belt then points in In contrast to the embodiment just described, no partial but a perforation that is distributed throughout the entire length of the tape.
  • By switching on the vacuum one then differs in time long pressurization, adjusted to the respective banknote length the banknote possible. This allows the action of Control the conveyor belt to the lowest banknote.
  • an appropriate Vacuum control in the suction box 11 can also be the gap between affect two banknotes in a row.
  • Another advantage of this embodiment is that, in contrast to partially perforated tape, in which the wear is always in the range of Hole pattern takes place, even wear over the entire circumference of the conveyor belt occurs, resulting in a particularly long service life of a conveyor belt.
  • the retention device 13 can be used to increase the retention force a suction area 41 can also be arranged in the retaining device 13.
  • the suction area 41 is between the two inner ones Retaining skids 15a are provided. While the suction force on the conveyor belt 4 only occurs when the holes 40 are just passing over the suction box 11 the suction force on the retaining device 13 is permanently effective since none Control elements are provided for the suction or interruption are.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Conveying Record Carriers (AREA)

Abstract

An apparatus for singling sheetlike data carriers is proposed wherein the stack (30) to be singled is located on a rest (5) which is movable relative to a feed device (4) in clocked fashion such that individual data carriers are moved in the direction of a singling gap whose width is variable by a retaining element (13) in synchronism with the clocked motion of the rest (5). This apparatus is able to attain a high throughput even with different sheet qualities while guaranteeing high functional safety.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Vereinzeln eines Stapels blattförmiger Aufzeichungsträger.The invention relates to a device and a method for separating a stack of sheet-like recording media.

Derartige Vorrichtungen und Verfahren werden unter anderem in Banknotenbearbeitungsmaschinen eingesetzt, um einzelne Banknoten eines Banknotenstapels an ein Transportsystem zu übergeben, welches die Banknoten zur weiteren Bearbeitung zu Prüf-, Sortier- und Stapeleinrichtungen fördert. Dabei wird der Durchsatz einer Banknotenbearbeitungsanlage ganz wesentlich von der Leistung des Vereinzelers bestimmt.Such devices and methods are used, among other things, in banknote processing machines used to stack individual banknotes of a banknote to be handed over to a transport system which stores the banknotes for promotes further processing to test, sorting and stacking facilities. there the throughput of a banknote processing system becomes very essential determined by the performance of the singler.

Aus der EP 0 535 407 B1 ist eine Vereinzelungsvorrichtung für Papierblätter bekannt, bei welcher der Blattstapel auf einer Hebevorrichtung aufliegt, welche zwischen Förderbändern auf- und abbewegbar ist. Durch die Auf- und Abbewegung der Hebevorrichtung werden Vorvereinzelungsrollen, welche elastisch vorgespannt sind, gemeinsam mit dem von ihnen erfaßten vorderen Abschnitt des Blattstapels von den Förderbändern abgehoben bzw. auf diese abgesenkt. Der Vereinzelungsspalt wird zwischen einer Vorschubwalze und einer feststehenden Vereinzelungswalze fest eingestellt, wobei die Vereinzelungswalze die auf dem zu vereinzelnden Papierblatt liegenden folgenden Blätter zurückhalten soll. EP 0 535 407 B1 describes a separating device for paper sheets known in which the sheet stack rests on a lifting device, which can be moved up and down between conveyor belts. Through the up and down Movement of the lifting device are pre-separation rollers, which are resiliently biased, together with the front they grasp Section of the sheet stack lifted off the conveyor belts this lowered. The separation gap is between a feed roller and a fixed separating roller, the Separating roller the following lying on the paper sheet to be separated Hold back leaves.

Bei der in der US 3,612,512 beschriebenen Vorrichtung wird der Abzug des untersten Blattes eines Stapels unterbrochen, indem der Stapel mittels einer Auflage von einer Fördereinrichtung abgehoben wird. Hierzu wird die Auflage samt Stapel von der Fördereinrichtung weggeschwenkt.In the device described in US 3,612,512, the deduction of the bottom sheet of a stack interrupted by the stack by means of a Edition is lifted by a conveyor. For this, the The support and the stack are pivoted away from the conveyor.

In der EP 0 267 665 A1 wird eine Vorrichtung beschrieben, bei welcher ein Stapel durch eine im wesentlichen vertikale Bewegung einer Auflage von einer Fördereinrichtung abgehoben wird, wenn das vordere Ende des untersten Blattes eine Rückhalteeinrichtung bereits passiert hat. Das vordere Ende des untersten Blattes wird nach Passieren der Rückhalteeinrichtung von entsprechenden Rollen weiterhin an die Fördereinrichtung gedrückt, während das hintere Ende des Blattes mit dem restlichen Stapel von der Fördereinrichtung abgehoben bleibt. Hierdurch wird das unterste Blatt vom Stapel abgezogen.EP 0 267 665 A1 describes a device in which a Stack by a substantially vertical movement of a pad of a conveyor is lifted when the front end of the bottom Leaf has already passed a restraint. The front end of the bottom sheet is passed by the corresponding after passing the restraint device Rolls continue to be pressed against the conveyor while the rear end of the sheet with the remaining stack from the conveyor remains lifted. This will remove the bottom sheet deducted.

Die beiden letztgenannten Schriften stellen den dem Gegenstand der vorliegenden Erfindung am nächsten kommenden Stand der Technik dar. The latter two writings represent the subject of the present Invention closest to the prior art.

Zwar lassen sich mit den bekannten Vereinzelungsvorrichtungen durch die getaktete Auf- und Abbewegung der Hebevorrichtung, insbesondere bei konstanter Papierqualität, einzelne Blätter von einem Stapel abziehen und gegebenenfalls durch entsprechende Ansteuerung der Hebevorrichtung auch Lücken zwischen einzelnen Blättern erzeugen, jedoch erreichen die bekannten Vereinzelungsvorrichtungen bei hohen Vereinzelergeschwindigkeiten und/oder unterschiedlicher Blattqualität ihre Grenzen und es treten Störungen, z. B. Doppelabzüge oder auch ein Verstopfen des Vereinzelungsspaltes, auf. Da der Vereinzelungsspalt auf eine Blattdicke eingestellt ist, besteht schon beim Einzug eines Blattes mit umgeknickter Vorderkante eine sehr starke Pressung im Vereinzelungsspalt, welche zu einer Störung, beispielsweise Verstopfen des Vereinzelungsspaltes, führen kann. Aber selbst wenn ein derart umgeknickt zugeführtes Blatt den Vereinzelungsspalt passiert, so ist doch die Belastung auf dieses Blatt sehr stark, so daß Beschädigungen am Blatt, wie z. B. abgerissene Eselsohren oder dergleichen, auftreten können.Admittedly, with the known separation devices through the clocked up and down movement of the lifting device, especially at constant paper quality, pull individual sheets from a stack and if necessary, by appropriate control of the lifting device also create gaps between individual sheets, but reach the known ones Separating devices at high separating speeds and / or different sheet quality its limits and it occurs disorders, z. B. double deductions or clogging of the separating gap, on. Since the separation gap is set to a sheet thickness, there is a lot when you pull in a sheet with the front edge folded over strong pressure in the separation gap, which leads to a malfunction, for example Clogging of the separation gap can lead. But even if a sheet fed in such a bent manner passes the separating gap, so the load on this sheet is very strong, so that damage to the Sheet such as B. torn dog ears or the like, can occur.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung sowie ein Verfahren zum Vereinzeln von blattförmigen Aufzeichnungsträgern zu schaffen, welche auch bei unterschiedlicher Blattqüalität der Aufzeichnungsträger mit hohem Durchsatz und hoher Funktionssicherheit arbeiten. Dabei sollen die Aufzeichnungsträger auch auf besonders schonende Art und Weise vereinzelt werden.The invention has for its object a device and a method to separate sheet-shaped recording media, which also with different sheet quality of the record carriers work with high throughput and high functional reliability. In doing so the recording media are also separated in a particularly gentle manner become.

Diese Aufgabe wird durch die Merkmale der Ansprüche 1 bzw. 19 gelöst.This object is solved by the features of claims 1 and 19, respectively.

Durch die erfindungsgemäße Lösung erfolgt eine taktweise Unterbrechung der Beaufschlagung des Stapels durch eine Vorschubeinrichtung und synchronisiert zu diesem Vorgang eine Veränderung der Weite des Vereinzelungsspalts. Zusätzlich zur Veränderung des Vereinzelungsspalts wird auch die Rückhaltekraft auf den als nächstes zu vereinzelnden Aufzeichnungsträger beeinflußt. Mit der erfindungsgemäßen Lösung lassen sich sehr hohe Durchsätze ohne Störungen durch klemmende Aufzeichnungsträger erreichen, selbst wenn der Stapel Aufzeichnungsträger mit sehr unterschiedlicher Qualität (z.B. Rauhigkeit, Lappigkeit, Dicke usw.) beinhaltet. Auch lassen sich durch die Erfindung die Lücken zwischen nacheinander vereinzelten Aufzeichnungsträgern auch bei unterschiedlicher Länge besonders genau einstellen und einhalten. Ferner läßt sich die Rückhaltekraft auf die Aufzeichnungsträger sehr fein dosieren, wodurch eine bestmögliche Schonung der Aufzeichnungsträger erzielt wird.The solution according to the invention results in a cyclical interruption the loading of the stack by a feed device and synchronized a change in the width of the separation gap for this process. In addition to changing the separation gap, too the retention force on the record carrier to be separated next affected. Very high can be achieved with the solution according to the invention Achieve throughputs without interference through jammed recording media, even if the stack of media with very different Quality (e.g. roughness, limpness, thickness, etc.). Let too the gaps between successively separated by the invention Record carriers are particularly accurate even with different lengths adjust and adhere. Furthermore, the restraining force can be exerted on the recording medium dispense very finely, which ensures the best possible protection the record carrier is achieved.

Weitere vorteilhafte Merkmale sowie die Funktion und der Aufbau der Erfindung ergeben sich aus nachfolgender Beschreibung eines Ausführungsbeispiels für die Vereinzelung von Banknoten anhand der Zeichnung. Hierzu zeigt:

Fig. 1
eine Seitenansicht der Vereinzelungsvorrichtung,
Fig. 2 a - d
Darstellungen des Vereinzelungsspaltes in vier unterschiedlichen Betriebszuständen,
Fig. 3
ein weiteres Ausführungsbeispiel in Seitenansicht und
Fig. 4
eine Schnitt-Darstellung des Ausführungsbeispiels gemäß Fig. 3.
Further advantageous features as well as the function and structure of the invention result from the following description of an exemplary embodiment for the separation of banknotes on the basis of the drawing. This shows:
Fig. 1
a side view of the separating device,
Fig. 2 a - d
Representations of the separation gap in four different operating states,
Fig. 3
another embodiment in side view and
Fig. 4
3 shows a sectional illustration of the exemplary embodiment according to FIG. 3.

Fig. 1 zeigt eine Vereinzelungsvorrichtung für Banknotenstapel (30), die in ein nicht näher dargestelltes Eingabefach eingelegt werden. Die in Vereinzelungsrichtung weisenden kurzen Seiten der Banknoten werden darin an der Banknotenanlauffläche 3 ausgerichtet. Das Eingabefach wird nach unten durch das obere Trumm des Förderbandes 4 und die als Wippenauflage 5 ausgeführte Auflage begrenzt. Die Wippenauflage 5 ist in Form von zwei leistenförmigen Bauteilen ausgeführt, welche an einem gemeinsamen Halter 6 befestigt sind und jeweils auf einer Seite des Förderbandes 4 parallel zu diesem verlaufen. Dem Halter 6 ist eine rotierend antreibbare Nockenscheibe 7 zugeordnet, welche die Hubbewegung der Wippenauflage 5 steuert. Fig. 1 shows a separating device for banknote stacks (30), which in an input pocket, not shown, can be inserted. The one in the direction of separation short sides of the banknotes are shown on the Banknote contact surface 3 aligned. The input tray is facing down through the upper run of the conveyor belt 4 and the rocker pad 5 limited edition. The rocker pad 5 is in the form of two ledge-shaped components, which on a common holder 6 are attached and each on one side of the conveyor belt 4 parallel to this get lost. The holder 6 is a rotatingly driven cam disk 7 assigned, which controls the lifting movement of the rocker pad 5.

Das Förderband 4 verläuft zwischen der Antriebswalze 8 und der Umlenkrolle 9 und wird etwa unterhalb der Banknotenanlauffläche 3 durch eine Stützrolle 10 beaufschlagt. Oberhalb der Antriebswalze 8 befindet sich eine erste Transportrolle 12 eines sich an die Vereinzelungsvorrichtung anschließenden Transportsystems, so daß eine ankommende Banknote zwischen der Transportrolle 12 und seitlich von der Antriebswalze 8 angeordneten frei drehenden Rollen eingeklemmt und transportiert werden kann.The conveyor belt 4 runs between the drive roller 8 and the deflection roller 9 and is approximately below the bank note contact surface 3 by a Support roller 10 acted upon. There is a drive roller 8 above first transport roller 12 of an adjoining the separating device Transport system, so that an incoming banknote between the Transport roller 12 and laterally arranged by the drive roller 8 freely rotating rollers can be pinched and transported.

Oberhalb des oberen Trumms des Förderbandes 4, etwa zwischen der Antriebswalze 8 und der Stützrolle 10 befindet sich die Rückhalteeinrichtung 13, die drehbar um die Schwenkachse 14 gelagert ist. Auf der Unterseite der Rückhalteeinrichtung 13 sind insgesamt vier Rückhaltekufen 15 befestigt, die auf die Wippenauflage 5 bzw. auf das Förderband 4 ausgerichtet sind. Wie der Fig. 2 zu entnehmen ist, sind die beiden äußeren Rückhaltekufen 15 oberhalb der Wippenauflage 5 vorgesehen, während die beiden mittleren Rückhaltekufen 15a auf korrespondierende Nuten 16, welche in Längsrichtung des Förderbandes 4 verlaufen, fluchtend ausgerichtet sind. Die Nuten 16 und die Rückhaltekufen 15 besitzen jeweils rechteckigen Querschnitt.Above the upper run of the conveyor belt 4, for example between the drive roller 8 and the support roller 10 is the restraint 13, which is rotatably mounted about the pivot axis 14. On the bottom of the Restraint device 13, a total of four retaining skids 15 are attached are aligned on the rocker pad 5 or on the conveyor belt 4. How 2 shows the two outer retaining skids 15 provided above the rocker pad 5, while the two middle Retaining skids 15a on corresponding grooves 16, which are in the longitudinal direction of the conveyor belt 4 are aligned, aligned. The grooves 16 and the retaining skids 15 each have a rectangular cross section.

Zwischen den Rückhaltekufen 15 und dem Eingabefach sind insgesamt drei Andruckrollen 17 angeordnet, die jeweils auf den drei Förderbandabschnitten abrollen, die neben den beiden Nuten 16 liegen. Zwischen den Andruckrollen 17 und seitlich von diesen verlaufen Führungsstreifen 18, welche als Verlängerung der mit der Rückhalteeinrichtung 13 verbundenen Banknotenanlauffläche 3 ausgebildet sind. Die Führungsstreifen verlaufen in einem Winkel von etwa 45° zur Banknotenanlauffläche 3 oder sind mit einem entsprechenden Radius versehen, wobei ihre dem Förderband 4 zugewandten Enden in Richtung auf die Rückhaltekufen 15 ausgerichtet sind. There are a total of three between the retaining skids 15 and the input compartment Pressure rollers 17 are arranged, each on the three conveyor belt sections unroll next to the two grooves 16. Between the pressure rollers 17 and laterally from these guide strips 18, which as Extension of the banknote contact surface connected to the retaining device 13 3 are formed. The guide strips run in one An angle of approximately 45 ° to the bank note contact surface 3 or with a corresponding one Radius provided, their facing the conveyor belt 4 Ends are aligned towards the retaining skids 15.

Die Andruckrollen 17 sind auf einer gemeinsamen Drehachse befestigt, welche frei drehbar und vertikal verschiebbar in einem Langloch der Rückhalteeinrichtung 13 geführt ist.The pressure rollers 17 are fastened on a common axis of rotation, which freely rotatable and vertically displaceable in an elongated hole in the restraint 13 is performed.

Die Rückhalteeinrichtung stützt sich aufgrund ihres Eigengewichtes und/oder eines nicht dargestellten Vorspannelementes auf der Wippenauflage 5 ab. Alternativ ist auch eine direkte Kopplung von Rückhalteeinrichtung 13 und Wippenauflage 5 möglich. Die zum Förderband 4 gerichtete Schwenkbewegung ist durch einen Anschlag 19 begrenzt, welcher mittels eines Einstellrades 20 und des Haltebügels 13a der Rückhalteeinrichtung 13 justiert und damit an die Banknoten-Qualität angepaßt werden kann. Das Einstellrad 20 ragt dabei durch ein Fenster in der Banknotenanlauffläche 3 hindurch, so daß es stets ohne größeren Aufwand zugänglich ist. Um die Position der Rückhaltekufen 15 in vertikaler Richtung ein- bzw. nachstellen zu können, sind diese durch die Stellschraube 21 beaufschlagbar.The restraint is based on its own weight and / or a biasing element, not shown, on the rocker pad 5 from. Alternatively, a direct coupling of the restraint device is also possible 13 and rocker pad 5 possible. The directed towards the conveyor belt 4 Pivotal movement is limited by a stop 19, which means an adjusting wheel 20 and the retaining bracket 13a of the retaining device 13 adjusted and can thus be adapted to the banknote quality. The Adjustment wheel 20 projects through a window in banknote contact surface 3 through, so that it is always accessible without much effort. To the Adjust or readjust the position of the retaining skids 15 in the vertical direction to be able to, these can be acted upon by the adjusting screw 21.

Angedeutet durch den Doppelpfeil 31 und die Darstellung der Wippenauflage 5 mit unterbrochenen Linien zeigt die Fig. 1 die Hubbewegung der Wippenauflage 5. Die Wippenauflage wird während der Hubbewegung so verschoben, daß der Banknotenstapel 30 zuerst mit dem von der Rückhalteeinrichtung abgewandten Ende vom Förderband 4 abgehoben wird und zuerst mit dem der Rückhalteeinrichtung zugewandten Ende wieder auf das Förderband 4 abgelegt wird. Auf diese Weise wird sichergestellt, daß das unterste Blatt stets gezogen und nicht geschoben wird. Dies kann entweder, wie dargestellt, durch eine Schwenkbewegung der Wippenauflage 5 erfolgen oder auch durch eine reine Hubbewegung, wobei die Wippenauflage 5 mit einem Winkel von wenigen Grad zum Obertrumm des Förderbandes 4 ausgerichtet ist. Indicated by the double arrow 31 and the representation of the rocker pad 5 with broken lines, Fig. 1 shows the lifting movement of the Rocker pad 5. The rocker pad becomes like this during the lifting movement shifted that the banknote stack 30 first with that of the retainer opposite end is lifted from the conveyor belt 4 and first with the end facing the restraint back on the Conveyor belt 4 is placed. This ensures that the bottom sheet is always pulled and not pushed. This can either as shown, done by a pivoting movement of the rocker pad 5 or also by a pure lifting movement, the rocker pad 5 with aligned at an angle of a few degrees to the upper run of the conveyor belt 4 is.

In beiden Fällen wird durch die Bewegung der Wippenauflage 5 die Rückhalteeinrichtung, welche an der Klemmstelle 32 über die beiden äußeren Rückhaltekufen 15 auf der Wippenauflage 5 aufliegt, angehoben bzw. abgesenkt. Dabei wird die Rückhalteeinrichtung 13 um die Schwenkachse 14 verschwenkt, wodurch auch mittels der Banknotenanlauffläche 3 eine die Ausrichtung der Banknoten positiv beeinflußende Rüttelbewegung erzeugt wird.In both cases, the movement of the rocker pad 5 causes the restraint device, which at the clamping point 32 via the two outer Retaining skids 15 rests on the rocker support 5, raised or lowered. The restraint device 13 is pivoted about the pivot axis 14, whereby the alignment also by means of the banknote contact surface 3 the banknotes generates positive shaking motion becomes.

Die Funktionsweise der Vereinzelungsvorrichtung wird im folgenden unter Bezugnahme auf Fig. 2 näher erläutert, wobei Fig. 2a die Phase darstellt, bei welcher die Wippenauflage 5 maximal vom Förderband 4 abgehoben ist. Der Vereinzelungsspalt, der durch die Rückhaltekufen 15a und die korrespondierenden Nuten 16 des Förderbandes 4 gebildet ist, ist zu diesem Zeitpunkt maximal geöffnet und die Klemmkraft an den Klemmstellen 32 zwischen den Rückhaltekufen 15 und der Wippenauflage 5 ist maximal. Diese Vereinzelungsphase entspricht der Stellung der Wippenauflage in gestrichelter Darstellung in Fig. 1.The operation of the separating device is described below With reference to Fig. 2 explained in more detail, wherein Fig. 2a represents the phase at which the rocker pad 5 is lifted from the conveyor belt 4 at most. The Separation gap, which by the retaining skids 15a and the corresponding Grooves 16 of the conveyor belt 4 is formed at this time opened to the maximum and the clamping force at the clamping points 32 between the retaining skids 15 and the rocker pad 5 is at a maximum. This separation phase corresponds to the position of the rocker pad in dashed lines Representation in Fig. 1st

Der Banknotenstapel 30 ist zu diesem Zeitpunkt vom Förderband 4 abgehoben und zwischen der Oberseite des Förderbandes 4 und der Unterkante der Rückhaltekufen 15a bleibt eine Lücke 33 von etwa einer Banknotendicke, das sind etwa 0,1 bis 0,2 mm. Aus dieser Stellung wird nun die Wippenauflage 5 abgesenkt, so daß sich zunächst, wie in Fig. 2b dargestellt, die Unterseite der Rückhaltekufen 15a und die Oberfläche des Förderbandes 4 auf einer gemeinsamen Ebene befinden, d. h. der Vereinzelungsspalt ist geschlossen, aber es findet noch keine Kämmung zwischen Förderband und Rückhaltekufen statt. Der Abstand 33 entspricht also 0 mm und an der Klemmstelle 32 findet zwar noch eine Berührung zwischen den Rückhaltekufen 15 und der Wippenauflage 5 statt, aufgrund der Elastizität der Wippenauflage 5 entstehen jedoch an der Klemmstelle 32 keine nennenswerten Klemmkräfte. Durch die Absenkung in die Mittellage der Wippenauflage 5 gelangt die unterste Banknote BN des Banknotenstapels 30 in Kontakt mit dem permanent umlaufenden Förderband 4 und bewegt sich in Richtung Vereinzelungsspalt. Die Banknote kann dabei trotz der auf der Wippenauflage 5 aufliegenden Rückhaltekufen 15 durch die Beaufschlagung durch das Förderband 4 in den Vereinzelungsspalt geschoben werden, da die Rückhaltekufen gegenüber dem Obertrumm des Förderbandes 4 und der Wippenauflage 5 einen Öffnungwinkel besitzen. Die nächstfolgende Banknote wird aufgrund der Reibung zwischen den beiden Banknoten ein Stück mitgezogen, jedoch durch die Rückhaltekufen 15, 15a zurückgehalten.The banknote stack 30 is lifted off the conveyor belt 4 at this time and between the top of the conveyor belt 4 and the lower edge of the Retaining skids 15a remain a gap 33 of approximately one banknote thickness, the are about 0.1 to 0.2 mm. From this position, the rocker pad 5 lowered so that first, as shown in Fig. 2b, the bottom of the Retaining skids 15a and the surface of the conveyor belt 4 on a common one Level, d. H. the separation gap is closed, but there is still no intermeshing between the conveyor belt and the retaining skids instead of. The distance 33 thus corresponds to 0 mm and at the clamping point 32 still finds a contact between the retaining skids 15 and Rocker pad 5 instead, due to the elasticity of the rocker pad 5 arise however, no significant clamping forces at the clamping point 32. By the lowering reaches the bottom position of the rocker pad 5 Banknote BN of the banknote stack 30 in contact with the permanently circulating Conveyor belt 4 and moves in the direction of the separation gap. The bank note can be placed on the rocker support 5 despite the Retaining skids 15 by the action of the conveyor belt 4 in the Separation gap can be pushed because the retaining skids are opposite the upper run of the conveyor belt 4 and the rocker pad 5 an opening angle have. The next banknote is due to the friction pulled a piece between the two banknotes, but through the retaining skids 15, 15a retained.

Fig. 2c zeigt den Betriebszustand, bei welchem die Wippenauflage 5 maximal abgesenkt ist und die Rückhalteeinrichtung 13 am Anschlag 19 anliegt, so daß zwischen der Wippenauflage und den Rückhaltekufen 15 ein freier Spalt entsteht. Zu diesem Zeitpunkt haben sich die beiden inneren Rückhaltekufen 15a bereits in die Nut 16 des Förderbandes 4 bewegt; diese Kämmung 34 beträgt etwas mehr als eine Banknotenstärke, d. h. ca. 0,2 mm.2c shows the operating state in which the rocker support 5 is at its maximum is lowered and the retaining device 13 abuts the stop 19, so that between the rocker pad and the retaining skids 15 a free gap arises. At this point, the two inner restraint skids have 15a already moved into the groove 16 of the conveyor belt 4; this comb 34 is slightly more than a banknote thickness, d. H. approx. 0.2 mm.

Zu diesem Zeitpunkt steht die nächstfolgende Banknote mit ihrer Vorderkante am Vereinzelungsspalt, also an den Rückhaltekufen 15 an; die sich bereits im Vereinzelungsspalt befindende unterste Banknote wird durch das Förderband 4 weiterbewegt, bis sie durch die Transportrolle 12 erfaßt wird, die dann für den Weitertransport zur Verfügung steht.At this point, the next banknote is with its leading edge at the separation gap, that is to say on the retaining skids 15; who are already The bottom banknote in the separating gap is replaced by the Conveyor belt 4 moves on until it is gripped by the transport roller 12, which is then available for onward transport.

Aus dieser Position heraus wird die Wippenauflage 5 wieder angehoben, die nächstfolgende Banknote wird vom Förderband 4 abgehoben, wodurch ein zu diesem Zeitpunkt unerwünschtes Nachschieben in Richtung des Vereinzelungssspalts verhindert wird. Während die Wippenauflage 5 über die in Fig. 2d dargestellte Mittellage, welche wiederum der Darstellung 2b entspricht, in Richtung nach oben gehoben wird, bis sie eine Position gemäß Fig. 2a erreicht, befindet sich noch das hintere Ende der ersten zu vereinzelnden Banknote BN im Vereinzelungsspalt, so daß sie zunehmend durch die Klemmkraft zwischen der Wippenauflage 5 und den Rückhaltekufen 15 belastet ist, jedoch durch das nachgeschaltete Transportsystem aus dem Vereinzelungsspalt herausgezogen wird. Dadurch werden Zugkräfte auf diese Banknote aufgebracht, die ein Glattziehen bewirken. Gleichzeitig wird durch diese Klemmung an der Klemmstelle 32, die zu diesem Zeitpunkt ihren Maximalwert besitzt, die nächste zu vereinzelnde Banknote noch am Vereinzelungsspalt zurückgehalten. Auf diese Weise wird zwischen zwei Banknoten eine gewünschte Lücke erzeugt.From this position, the rocker pad 5 is raised again next banknote is lifted off the conveyor belt 4, whereby a at this time undesirable pushing in the direction of the separation gap is prevented. While the rocker pad 5 over the in 2d shown middle position, which in turn corresponds to the representation 2b, is lifted upwards until it corresponds to a position Fig. 2a reached, there is still the rear end of the first to be separated Banknote BN in the separating gap, so that it increasingly through the clamping force between the rocker pad 5 and the retaining skids 15 is burdened, however, by the downstream transport system from the Separation gap is pulled out. This will pull on applied this banknote, which cause a smoothing. At the same time by this clamping at the clamping point 32, which is at this time Has the maximum value, the next banknote to be separated is still on Separation gap retained. This way, between two Banknotes created a desired gap.

Aus der in Fig. 2a dargestellten Position wiederholt sich nun wieder das eben dargestellte Verfahren, so daß nun die zweite Banknote in den Vereinzelungsspalt befördert wird, während die dritte Banknote, wie bereits oben beschrieben, zurück und auf Abstand gehalten wird.This is repeated again from the position shown in FIG. 2a just described method, so that now the second banknote in the separating gap is promoted while the third banknote, as already above described, back and kept at a distance.

Während dieses Vorganges bewirkt die sich durch die Banknotenbewegung drehenden Andruckrollen 17 zusammen mit den Führungsstreifen 18 ein Auffächern der einzelnen Banknoten sowie ein Andrücken der zu vereinzelnden Banknote an das Förderband 4. Insbesondere bei der letzten Banknote eines Stapels, also bei fehlender Andruckkraft aus dem Stapelgewicht, ist diese Funktion besonders wichtig. In Verbindung mit den Führungsstreifen 18 erfolgt auch ein Vorprofilieren der Banknote, was das Einziehen in den Vereinzelungsspalt (beginnende Kämmung) begünstigt. During this process, it is caused by the movement of the banknotes rotating pressure rollers 17 together with the guide strips 18 a fanning out the individual banknotes as well as pressing on the individual ones Banknote to the conveyor belt 4. Especially for the last banknote of one Stack, i.e. if there is no pressure from the stack weight, this is Function particularly important. In conjunction with the guide strips 18 there is also a pre-profiling of the banknote, which is feeding into the separating gap (beginning combing) favored.

Dadurch, daß während des Aufwärtsbewegens der Wippenauflage 5 die nächste zu vereinzelnde Banknote noch zurückgehalten wird, ist es möglich, auch Banknoten unterschiedlicher Länge aus einem gemeinsamen Stapel heraus zu vereinzeln und trotzdem noch eine Lücke, deren Länge dann jedoch von der Banknotenlänge abhängig ist, zu erzeugen. Das Zurückhalten der nächstfolgenden Banknote wird ab dem in Fig. 2d dargestellten Zustand (Mittellage) durch die nun zunehmende Klemmkraft an der Klemmstelle 32 bewirkt. Begünstigt wird dieser Rückhaltungseffekt natürlich noch dadurch, daß die Beaufschlagung durch das Förderband 4 während der Aufwärtsbewegung der Wippenauflage 5 zurückgenommen wird.Characterized in that during the upward movement of the rocker pad 5 the next bank note to be separated is still held back, it is possible to banknotes of different lengths from a common stack to separate and still a gap, the length of which, however depends on the length of the banknotes. Restraining the The next following banknote is from the state shown in Fig. 2d (Middle position) due to the increasing clamping force at the clamping point 32 causes. This restraint effect is of course further enhanced by that the loading by the conveyor belt 4 during the upward movement the rocker pad 5 is withdrawn.

Durch eine entsprechende Steuerung der Bewegung der Wippenauflage 5 kann die Länge der Lücke zwischen zwei Banknoten direkt beeinflußt werden. Läuft die Nockenscheibe 7 beispielsweise synchron mit dem Förderband, so ist die Lücke lediglich von der Länge der jeweils benachbarten Banknoten abhängig. Bei einer Vereinzelung eines Stapels gleichlanger Banknoten entstehen dann konstante Lücken.By appropriately controlling the movement of the rocker pad 5 the length of the gap between two banknotes can be directly influenced. If the cam disk 7 runs synchronously with the conveyor belt, for example, the gap is only the length of the neighboring one Banknotes dependent. When separating a stack of banknotes of the same length then there are constant gaps.

Es ist jedoch auch möglich, direkt hinter der Vereinzelungsvorrichtung, die Hinterkante der letztvereinzelten Banknote mittels eines entsprechenden Sensors 2 zu detektieren und die Wippenauflage 5 so anzusteuern, daß auch bei unterschiedlich langen aufeinanderfolgenden Banknoten (mixed depositions) stets gleich große Lücken zwischen den einzelnen Banknoten erzeugt werden.However, it is also possible to use the directly behind the separating device Trailing edge of the last singled banknote by means of a corresponding Detect sensor 2 and control the rocker pad 5 so that also for consecutive banknotes of different lengths (mixed depositions) always created the same gaps between the individual banknotes become.

Während des Vereinzelungsvorganges müssen die Reibungskräfte zwischen der untersten Banknote und dem Förderband 4 größer sein als die Reibungskräfte zwischen der ersten und der zweiten Banknote. Um eine größtmögliche Haftung zwischen Banknote und Förderband zu erreichen, ist das Förderband 4 bei einer weiteren Ausführungsform der Erfindung mit zwei gleichmäßig am Umfang verteilten Abschnitten mit je einem Lochmuster versehen, welche mit einem Saugkasten 11, der zwischen der Antriebswalze 8 und der Stützrolle 10 angeordnet ist, über welchen das Förderband 4 läuft, und der einen nicht dargestellten Anschluß zum Verbinden mit einer Unterdruckquelle besitzt, zusammenwirken. Kurz nachdem der Transport der ersten Banknote nach Beaufschlagung durch das Förderband 4 begonnen hat, liegt einer der gelochten Bereiche des Förderbandes im Bereich der Vorderkante der Banknote an und verstärkt während des Überfahrens des Saugkastens 11 die Haftung zwischen dem Förderband 4 und der untersten Banknote. Die Länge des Förderbandes bzw. der Abstand zwischen den beiden Lochmustern ist dabei so gewählt, daß während eines kompletten Umlaufes zwei Banknoten vereinzelt werden.During the separation process, the frictional forces must be between the lowest banknote and the conveyor belt 4 may be greater than the frictional forces between the first and second banknotes. To be the greatest possible To achieve liability between banknote and conveyor belt is the conveyor belt 4 in a further embodiment of the invention with two sections evenly distributed around the circumference, each with a perforated pattern provided which with a suction box 11, which is between the drive roller 8 and the support roller 10, over which the conveyor belt 4 runs, and the one port, not shown, for connecting to a vacuum source owns, cooperate. Shortly after the transportation of the first Banknote has started after being loaded by conveyor belt 4, one of the perforated areas of the conveyor belt lies in the area of the front edge the banknote and strengthens it while moving over the suction box 11 the liability between the conveyor belt 4 and the bottom banknote. The length of the conveyor belt or the distance between the two Hole patterns are chosen so that during a complete revolution two banknotes are separated.

In Fig. 3 ist die weitere Ausführungsform und eines der beiden Lochbilder mit einzelnen Löchern 40 in einer Position über dem Saugkasten 11 dargestellt.3 shows the further embodiment and one of the two hole patterns shown with individual holes 40 in a position above the suction box 11.

Bei einer weiteren, zeichnerisch nicht dargestellten Ausführungsform der Erfindung ist vorgesehen, daß der Unterdruck im Saugkasten 11 beispielsweise durch eine Ventileinheit steuerbar ist. Das Förderband weist dann im Gegensatz zur gerade beschriebenen Ausführungsform keine partielle sondern eine über die gesamte Bandlänge durchgehend verteilte Lochung auf. Durch das Zuschalten des Unterdrucks ist dann eine zeitlich unterschiedlich lange, auf die jeweilige Banknotenlänge abgestimmte Unterdruckbeaufschlagung der Banknote möglich. Dadurch läßt sich die Einwirkung des Förderbandes auf die unterste Banknote gezielt steuern. Durch eine entsprechende Unterdrucksteuerung im Saugkasten 11 läßt sich auch die Lücke zwischen zwei hintereinander vereinzelten Banknoten beeinflussen. In a further embodiment of the The invention provides that the vacuum in the suction box 11, for example is controllable by a valve unit. The conveyor belt then points in In contrast to the embodiment just described, no partial but a perforation that is distributed throughout the entire length of the tape. By switching on the vacuum, one then differs in time long pressurization, adjusted to the respective banknote length the banknote possible. This allows the action of Control the conveyor belt to the lowest banknote. By an appropriate Vacuum control in the suction box 11 can also be the gap between affect two banknotes in a row.

Ein weiterer Vorteil dieser Ausführungsform ist, daß im Gegensatz zum partiell gelochten Band, bei welchem der Verschleiß immer im Bereich des Lochbildes stattfindet, ein gleichmäßiger Verschleiß über den gesamten Umfang des Förderbandes eintritt, wodurch sich besonders lange Standzeiten eines Förderbandes ergeben.Another advantage of this embodiment is that, in contrast to partially perforated tape, in which the wear is always in the range of Hole pattern takes place, even wear over the entire circumference of the conveyor belt occurs, resulting in a particularly long service life of a conveyor belt.

Durch die Anordnung von zwei Saugkammern, wobei die eine Saugkammer in Transportrichtung vor dem Vereinzelungsspalt liegt und die andere Saugkammer hinter dem Vereinzelungsspalt angeordnet ist, ist es möglich, diese beiden Saugkammern zeitlich überlagert, nacheinander zu beaufschlagen. Dadurch kann auf die Banknote, welche gerade vereinzelt wird, möglichst lange während ihrer Bewegung durch den engen Vereinzelungsspalt die die Förderung unterstützende Saugkraft ausgeübt werden, ohne daß die darüber liegende Banknote, welche als nächstes vereinzelt wird, bereits erfaßt wird. Bei dieser Ausführung wandert sozusagen die Saugbeaufschlagung mit der Banknote ein Stück des Förderweges.By arranging two suction chambers, one suction chamber lies in front of the separating gap in the direction of transport and the other Suction chamber is arranged behind the separation gap, it is possible these two suction chambers superimposed in time to act upon one another. As a result, the banknote that is being singled out is possible long while moving through the narrow separation gap the suction power supporting the promotion are exercised without the the banknote lying above, which will be separated next, has already been recorded becomes. In this version, the suction is moving, so to speak with the banknote a piece of the funding route.

Zur Erhöhung der Rückhaltekraft durch die Rückhalteeinrichtung 13 kann auch ein Saugbereich 41 in der Rückhalteeinrichtung 13 angeordnet sein.The retention device 13 can be used to increase the retention force a suction area 41 can also be arranged in the retaining device 13.

Wie in Fig. 4 dargestellt, ist der Saugbereich 41 zwischen den beiden inneren Rückhaltekufen 15a vorgesehen. Während die Saugkraft am Förderband 4 nur auftritt, wenn die Löcher 40 gerade den Saugkasten 11 überfahren, ist die Saugkraft an der Rückhalteeinrichtung 13 permanent wirksam, da hier keine Steuerungselemente für die Saugbeaufschlagung bzw. Unterbrechung vorgesehen sind. As shown in Fig. 4, the suction area 41 is between the two inner ones Retaining skids 15a are provided. While the suction force on the conveyor belt 4 only occurs when the holes 40 are just passing over the suction box 11 the suction force on the retaining device 13 is permanently effective since none Control elements are provided for the suction or interruption are.

Durch die Saugbeaufschlagung durch den Saugbereich 41 in der Rückhalteeinrichtung 13 läßt sich die Rückhaltewirkung auf die Banknoten verbessern, so daß dabei die Klemmkräfte an der Klemmstelle 32 und damit die Reibbeanspruchung der Banknote verringert werden können. Dies bewirkt eine deutliche Schonung der Banknoten während der Vereinzelung.By suction through the suction area 41 in the restraint 13 can improve the retention effect on banknotes, so that the clamping forces at the clamping point 32 and thus the friction stress the banknote can be reduced. This causes a clear one Protection of banknotes during separation.

Auch kann durch eine Druckluftbeaufschlagung durch einen nicht dargestellten Druckbereich, welcher in Vereinzelungsrichtung nach der Klemmstelle 32 angeordnet ist, die Haftung zwischen der zu vereinzelnden Banknoten und dem Förderband 4 erhöht werden.It can also be caused by a compressed air supply by a not shown Pressure range, which is in the separation direction after the nip 32 is arranged, the liability between the banknotes to be separated and the conveyor belt 4 can be increased.

Claims (21)

  1. An apparatus for singling sheetlike data carriers from a stack (30) located on a rest (5) with a feed device (4),
    the feed device (4) and rest (5) being movable relative to each other in clocked fashion such that individual data carriers are moved in the direction of a singling gap, and
    the singling gap is limited by a retaining device (18) and the feed device (4),
    characterized in that the width of the singling gap limited by the retaining device (13) and the feed device (4) is variable in synchronism with the clocked motion.
  2. An apparatus according to claim 1, characterized in that the retaining device (13) is controlled in accordance with the motion of the rest (5) for changing the width of the singling gap.
  3. An apparatus according to either of the above claims, characterized in that the retaining device (13) can be acted upon directly by the rest (5).
  4. An apparatus according to any of the above claims, characterized in that the retaining device (15a) and the feed device (4) have profiles which mesh with each other.
  5. An apparatus according to any of the above claims, characterized in that the motion of the rest (5) is a lifting (31) and/or swivel motion.
  6. An apparatus according to claim 5, characterized in that the swivel motion of the rest (5) is effected around a pivot located on the side of the singling gap opposite the stack (30).
  7. An apparatus according to any of the above claims, characterized in that the retaining device (13) has at least one clamping element (15) for producing a normal force on the data carriers.
  8. An apparatus according to claim 7, characterized in that the rest (5) serves as a support for the normal force produced by the clamping element (15) on the opposite side of the data carrier.
  9. An apparatus according to any of the above claims, characterized in that the retaining device (13) is acted upon by elastic means in the direction of the feed device (4).
  10. An apparatus according to any of the above claims, characterized in that the rest (5) is inclined toward the singling gap relative to the conveying direction of the feed device (4).
  11. An apparatus according to any of the above claims, characterized in that the feed device (4) is provided with at least one suction area for subjecting the adjacent data carrier to a vacuum.
  12. An apparatus according to claim 11, characterized in that the feed device (4) is a conveyer belt partly provided with at least one hole pattern (40).
  13. An apparatus according to claim 11, characterized in that the feed device (4) is a conveyer belt with a perforation extending over the total belt length and the conveyer belt cooperates with a suction chamber (11) whose vacuum is controllable.
  14. An apparatus according to claim 13, characterized in that the suction area comprises two suction chambers (11), the vacuum of each suction chamber being controllable.
  15. An apparatus according to claim 14, characterized in that one suction chamber is provided before the singling gap in the transport direction and the other suction chamber therebehind.
  16. An apparatus according to any of the above claims, characterized in that the retaining device (13) has a pressure roll (17) preceding the singling gap.
  17. An apparatus according to any of the above claims, characterized in that the retaining device (13) has a suction area (41) for acting upon the adjacent data carrier.
  18. An apparatus according to any of the above claims, characterized in that a sensor (2) is provided after the singling gap in the singling direction for detecting the distance between two singled data carriers, its output signal being used to maintain predetermined distances of the control of the singling apparatus.
  19. A method for singling sheetlike data carriers from a stack (30) located on a rest (5) with a feed device (4), wherein the feed device (4) and rest (5) are movable relative to each other in clocked fashion such that individual data carriers are moved in the direction of a singling gap limited by a retaining device (13) and the feed device (4), and wherein in a first step
    a) the stack (30) is deposited on the rest (5),
       characterized by the following further method steps:
    b) moving the rest (5) and a feed device (4) toward each other so that the data carrier acted upon directly by the feed device (4) is moved at least partly through the singling gap limited by the retaining device (13) and the feed device (4), simultaneously closing the singling gap so that the next data carrier is retained at the singling gap,
    c) moving the rest (5) and feed device (4) apart and ending or at least reducing the action of the feed device (4) on the stack (30) and opening the singling gap,
    d) repeating steps b) and c).
  20. A method according to claim 19, characterized in that the data carrier is acted upon by a retaining force at the time when the moving apart of rest (5) and feed device (4) is ended.
  21. A method according to claim 20, characterized in that the retaining force is built up or reduced continuously.
EP99923578A 1998-05-15 1999-05-11 Device and method for individually separating a pile of sheetlike data recording media Expired - Lifetime EP1084072B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19821871A DE19821871A1 (en) 1998-05-15 1998-05-15 Bank note counting machine with tray advancing towards counter
DE19821871 1998-05-15
PCT/EP1999/003238 WO1999059906A1 (en) 1998-05-15 1999-05-11 Device and method for individually separating a pile of sheetlike data recording media

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EP1084072A1 EP1084072A1 (en) 2001-03-21
EP1084072B1 true EP1084072B1 (en) 2003-08-06

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CN1301231A (en) 2001-06-27
DE19821871A1 (en) 1999-11-18
JP2002515390A (en) 2002-05-28
ES2203139T3 (en) 2004-04-01
WO1999059906A1 (en) 1999-11-25
US6412770B1 (en) 2002-07-02
CN1108268C (en) 2003-05-14
AU4040399A (en) 1999-12-06
ATE246655T1 (en) 2003-08-15
EP1084072A1 (en) 2001-03-21
RU2221735C2 (en) 2004-01-20

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