EP1663829B1 - Device for processing sheet material - Google Patents

Device for processing sheet material Download PDF

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Publication number
EP1663829B1
EP1663829B1 EP04764875A EP04764875A EP1663829B1 EP 1663829 B1 EP1663829 B1 EP 1663829B1 EP 04764875 A EP04764875 A EP 04764875A EP 04764875 A EP04764875 A EP 04764875A EP 1663829 B1 EP1663829 B1 EP 1663829B1
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EP
European Patent Office
Prior art keywords
transport
sheet material
clamping rings
checking device
belt
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Active
Application number
EP04764875A
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German (de)
French (fr)
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EP1663829A1 (en
Inventor
Markus Haberstroh
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Giesecke and Devrient GmbH
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Giesecke and Devrient GmbH
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Publication of EP1663829A1 publication Critical patent/EP1663829A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • 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 processing sheet material, in particular a banknote processing machine, wherein the sheet material is held between a conveyor belt and further, opposite the conveyor belt transport and is guided between at least two opposing components of a test device.
  • the conveyor belt is used to guide and to press the sheet material against the opposite means of transport and against intermediate tracks or test equipment.
  • the transport means are usually transport rollers or rollers or a second conveyor belt, which is returned by means of deflection rollers either directly in front of and behind the test device or guided around the test device.
  • the first conveyor belt in the area of the test device guiding and pressing function hinders the implementation of a transmission measurement on the sheet material.
  • a dirt measurement is also hindered since the sheet material usually has to be illuminated from both sides in such a measurement. Therefore, the first conveyor belt is usually replaced by a plurality of narrow, parallel to each other in the transport direction and spaced apart belt. But even so a full-surface measurement of the sheet material over its entire width is not possible.
  • the positions of the straps are rather than dark vertical stripes in the evaluation of z. B. transmitted light noticeable.
  • the transport route must be interrupted and the sheet material to be measured by the testing device in free flight.
  • the problem is the measurement in free flight but at low transport speeds and in particular in the case of lappigem sheet material. Gravity can take unpredictable influences on the sheet material and cause the machine to lock up.
  • the DE-OS 26 55 580 describes such a free flight path, wherein the banknotes are conveyed between several belt pairs clamped. Before and after the testing device, the belts are guided away via deflection rollers from the transport path, so that the sheet material passes the testing device in free flight. In this case, the opposing pairs of belts are arranged in a gap to each other and engage slightly into one another.
  • the object of the present invention is therefore to propose a device for processing sheet material, in which the sheet material is reliably guided past a checking device in such a way that it is accessible and reliably testable on both sides over its entire width.
  • the solution according to the invention coaxially to the guide roller clamping rings which slightly project beyond the conveyor belt guided on the pulley, so that the sheet material is lifted from the conveyor belt at the moment in which it is introduced between the two components of the test device.
  • the sheet material clamps between the clamping rings and the transport means opposite the clamping rings.
  • the clamping rings here do not serve to impart a reversible wave-shaped profile to the sheet material, thereby achieving an increase in the stiffness of the sheet material. Rather, the sheet material is reliably detected and guided by means of the clamping rings. To support this process, there is a guide plate meshing with the clamping rings.
  • the sheet material is then in a defined, level position.
  • the Matching guide plate according to the requirements of the relevant test equipment and consists for example of a radiation-transparent material such as plastic or glass and can be designed in many ways, for example as a grid-shaped plate.
  • the sheet material is thus lifted by means of the clamping rings of the conveyor belt and guided along the meshing with the clamping rings guide plate in planar alignment z-wipe the two components of the test device.
  • the influence of gravity on the sheet material handling is negligible at transport speeds of 10 m / s and so low even at 5 m / s that difficulties are not to be expected.
  • the transport means opposite the transport means may for example be mutually spaced transport rollers, wherein the clamping rings cooperate with in the transport direction immediately before and preferably also behind the test device arranged transport rollers or sensor rollers.
  • the means of transport may also comprise a further conveyor belt, which is led away from the transport path in front of the testing device by means of at least one deflection roller.
  • the clamping rings can either interact directly with a surface of the second conveyor belt or with corresponding coaxial with the deflection roller of the second conveyor belt arranged clamping rings.
  • the one or more conveyor belts are passed around the test device by means of the deflection roller and optionally further deflection rollers.
  • this offers substantial functional advantages, since there are, for example, no damaged banknote parts between thread and returning belts can thread, which would otherwise lead to transport problems.
  • the clamping rings consist at least along their outer circumference of elastic material, such. As polyurethane or silicone.
  • Such clamping rings can deform during the transport of multiple prints without lifting the clamping ring axis of rotation so that such multiple deductions between the clamping rings and the opposite means of transport can be transported through without causing stalls.
  • the circumferential path of the clamping rings preferably overlaps slightly with a circumferential path of the opposite, cooperating with them transport, so that there is always a minimum pressure between the clamping rings and the opposite means of transport for the reliable transport of the sheet material available.
  • the clamping rings and the at least one deflection roller are arranged in the simplest case as sublime on the surface of the guide pulley or as separate clamping rings between the individual belts of the conveyor belt and these radially outstanding.
  • the clamping rings can be arranged in the simplest case as sublime on the surface of the guide pulley or as separate clamping rings between the individual belts of the conveyor belt and these radially outstanding.
  • the clamping rings to passively independent of the pulleys rotating rollers that rotate with the opposite, actively driven transport.
  • This preferred variant has several advantages.
  • the circumferential speed and thus the transport speed of the clamping rings acting on the sheet material would be greater than the transport speed of the conveyor belt in the case of clamping rings connected rigidly to the deflection roller, since the clamping rings project radially at least slightly beyond the conveyor belt.
  • a further advantageous embodiment provides that the clamping rings are interconnected rigidly together, so that they run absolutely the same. As a result, an inclination of the sheet material is avoided when entering the test device.
  • a preferred embodiment of the guide plate provides that it defines relative to the opposing component of the test device a guide channel for the sheet to be tested, the narrowest point in the transport direction behind the clamping rings, so that the sheet material unhindered run in front of the nip and then from the elastic Clamping rings can be detected.
  • FIG. 1 schematically a section of a banknote processing device with a total of 5 sensor slots SP 1 to SP 5 is shown.
  • Banknotes 100 are guided past a transport path 1 at the sensor locations SP.
  • the transport path 1 is formed on one side of the transported banknotes by a conveyor belt 2 and on the other side by transport rollers 3 spaced from each other in the transport direction.
  • the banknotes 100 are held between the conveyor belt 2 and the opposite transport rollers 3 and guided past the sensor locations SP, which are each arranged between two adjacent transport rollers 3.
  • the conveyor belt 2 can exert a pressing force on the transported banknotes 100 in the direction of the sensor locations SP without additional pressure means.
  • transport rollers 3 may optionally be provided other means of transport.
  • the transport rollers 3 may be deflection rollers of a conveyor belt 2 opposite the conveyor belt. If a sensor space SP is not occupied by a sensor, the transport distance be realized in the corresponding area by a simple guide plate.
  • all five sensor locations are occupied, wherein the first three sensors SP 1 to SP 3 in the transport direction and the last sensor SP 4 are adapted to detect the banknotes transported past them on one side.
  • the fourth sensor at the sensor location SP 4 also serves to detect the banknote 100 on one side.
  • it is a transmission sensor 4 which requires the illumination of the banknotes 100 from the opposite banknote side by means of a radiation source 5 in order to provide measurement results.
  • the banknotes 100 can be irradiated over the entire transport width by means of the radiation source 5 and detected by the opposite sensor 4, the conveyor belt 2 is led away in the relevant section by means of a first guide roller 6 of the transport path 1, passed around the radiation source 5 and by means of a second deflection roller 7 again fed to the transport path 1. Between the two pulleys 6 and 7, the transport path 1 is completed by a guide plate 8. The banknotes 100 are then transported through a guide channel formed between the guide plate 8 and the sensor 4 and irradiated through the guide plate 8 by the radiation source 5.
  • FIG. 2 shows a detail in more detail FIG. 1 in the region of the sensor station SP 4.
  • the conveyor belt 2 consists of a plurality of not shown in detail, parallel juxtaposed round belt, which are supplied by the first guide roller 6 away from the transport path 1 and by means of the second guide roller 7 of the transport path 1 again.
  • the first guide pulley 6 shown in section it can be seen that the individual round belts of the conveyor belt 2 in associated grooves 9 run.
  • the depth of the grooves 9 is chosen to be greater than the thickness of the conveyor belt 2.
  • the outer circumference of the guide roller 6 thus protrudes radially beyond the conveyor belt 2 and assumes the function of a clamping ring 10.
  • This clamping ring 10 and the clamping roller 10 opposite transport roller 3 detect a Banknote supplied by the conveyor belt 2 lifts the banknote from the conveyor belt 2 and transports it between the sensor 4 and the jet source 5.
  • the second guide roller 7 is constructed in the same way and interacts with the transport roller 3 opposite it in the same way as the first guide roller 6.
  • the clamping ring 10 or at least the surface thereof is made of an elastic material, such. As polyurethane or silicone molded.
  • the circumferential lines of the clamping ring 10 and the opposite transport roller 3 overlap slightly by, for example, 0.2 mm, so that on the one hand the reliable detection of an incoming banknote is guaranteed by generating a minimum pressure on the banknote and on the other hand multiple deductions of, for example, up to 10 banknotes between the Clamping ring 10 and the transport roller 3 can be transported without lifting the deflection roller 6.
  • the guide plate 8 together with the sensor head of the opposite sensor 4 and arranged in the transport direction and behind the sensor head Leithimmmen 12 a guide channel 11.
  • the guide plate 8 is adjustable (not shown) to adjust the guide channel to the sheet material to be processed can , Usually, however, the gap width is set to an optimum value only before the delivery of the device to a customer.
  • the inlet zone 13 of the guide plate 8 meshes with the clamping rings 10 of the guide roller 6. In a corresponding manner comb the guide combs 12 with the transport rollers 3. That is, the transport rollers 3 have parallel circumferential grooves, which in the FIG. 2 are not explicitly shown.
  • the inlet end 13 of the guide plate 8 is bent away from the transport path 1 in order to ensure reliable insertion of the banknotes into the guide channel 11.
  • the transport gap defined by the guide channel 11 for the banknotes has a narrowest gap width at a slight distance a behind the point of contact of the clamping ring 10 with the opposite transport roller 3. This distance a is preferably about 4 to 5 mm with a narrowest gap width of 1.5 mm ,
  • the gap width of the guide channel 11 widens continuously from the narrowest point in the transport direction to, for example, about 2.5 mm at the end of the guide channel.
  • FIG. 3 shows in more detail the structural design of the guide roller 6 with the clamping rings 10.
  • the conveyor belt consists of three parallel endless belts, each running on a single mounted single roller 16 of the guide roller 6. Between the individual rollers 16, the clamping rings 10 are provided, which in turn are designed as independent clamping rollers.
  • the pinch rollers 10 and the individual rollers 16 are threaded onto an internal continuous shaft 30 and clamped at both ends with screws 14.
  • the rollers 10, 16 are operated passively. D. h., While the single rollers 16 rotate with the transport speed of the endless belt running on them, the pinch rollers 10 passively rotate over the bearings 31 with the opposite, actively driven transport roller 3 with.
  • the rotational speed of the individual rollers 16 is thus not necessarily identical to the rotational speed of the pinch rollers 10. Therefore, the pinch rollers 10 run on the bearing with bearing 31 shaft 30 regardless of the individual rollers 16. However, the pinch rollers 10 are braced by the two screws 14, rigidly together connected to prevent a skew of the banknotes when entering between the pinch rollers 10 and the pinch rollers 10 opposite transport roller 3.
  • FIG. 4 shows in perspective on the sliding plate looking an assembly consisting of the guide roller 6 and the guide roller 7 with the associated individual rollers 16 and clamping rings or pinch rollers 10 and the thus meshing guide plate 8. It can be seen that the guide plate 8 not only with the clamping rings or pinch rollers 10 but at the same time with the single rollers 16 meshes.
  • FIG. 5 shows a further embodiment, which is essentially of the in FIG. 2 illustrated embodiment, characterized in that instead of the radiation source 5, a second sensor 15 is provided to detect the transported through the guide channel 11 banknotes on both sides. Accordingly, the guide plate 8 is formed shorter, since the sensor head of the sensor 15 assumes the lead function in the guide channel 11. It has been found to be advantageous if the inlet edge of the sensors 4 and 15 is slightly set back relative to the transport plane of the guide plate 8 and the guide element 12 by 0.5 mm, for example, and forms a short, flat run-on slope.

Abstract

In a bank note processing machine bank notes 100 are led through between two components of a checking device with the help of a conveyor belt. The conveyor belt is led away from the transport path and around the checking device with the help of deflection rollers. Coaxially to the deflection rollers are disposed clamping rings or clamping rollers, which grasp the sheet material and guide it through the checking device. This operation is supported by a guide plate, which combs with the clamping rings.

Description

Die Erfindung betrifft eine Vorrichtung zum Bearbeiten von Blattgut, insbesondere eine Banknotenbearbeitungsmaschine, wobei das Blattgut zwischen einem Transportband und weiteren, dem Transportband gegenüberliegenden Transportmitteln gehalten und zwischen mindestens zwei einander gegenüberliegenden Komponenten einer Prüfeinrichtung hindurch geführt wird.The invention relates to a device for processing sheet material, in particular a banknote processing machine, wherein the sheet material is held between a conveyor belt and further, opposite the conveyor belt transport and is guided between at least two opposing components of a test device.

Das Transportband dient zur Führung und zum Andrücken des Blattguts gegen die gegenüberliegenden Transportmittel und gegen dazwischen liegende Führungsstrecken oder Prüfeinrichtungen. Bei den Transportmitteln handelt es sich üblicherweise um Transportwalzen oder -rollen oder um ein zweites Transportband, das mittels Umlenkrollen entweder unmittelbar vor und hinter der Prüfeinrichtung zurückgeführt oder um die Prüfeinrichtung herumgeführt wird.The conveyor belt is used to guide and to press the sheet material against the opposite means of transport and against intermediate tracks or test equipment. The transport means are usually transport rollers or rollers or a second conveyor belt, which is returned by means of deflection rollers either directly in front of and behind the test device or guided around the test device.

Um eine sichere Transportfunktion auch bei schwankender Blattstärke aufrechtzuerhalten, wird in der DE 198 40 420 A1 vorgeschlagen, das dem Blattgut zugewandte Trum des ersten Transportbands durch Andruckelemente elastisch in Richtung auf das Blattgut zu belasten. In der DE 29 23 148 A1 wird darüberhinaus vorgeschlagen, das zweite Transportband auf Umlenkrollen in Nuten zu führen, so dass die Geschwindigkeit des Blattguts von dem in Umlenkrichtung außenliegenden, ersten Transportband bestimmt wird. Das innenliegende, zweite Transportband dient dann lediglich als Abstützung für das Blattgut zwischen benachbarten Umlenkrollen, wobei diese Abstützung stattdessen auch durch eine das zweite Transportband ersetzende lichtdurchlässige Glasplatte erzielt werden kann, wenn das Blattgut über die gesamte Breite für Prüfzwecke zugänglich sein soll.In order to maintain a safe transport function even with fluctuating blade thickness, is in the DE 198 40 420 A1 proposed to load the sheet material facing strand of the first conveyor belt by pressure elements elastically in the direction of the sheet material. In the DE 29 23 148 A1 In addition, it is proposed to guide the second conveyor belt onto guide rollers in grooves, so that the speed of the sheet material is determined by the first conveyor belt located in the direction of deflection. The inner, second conveyor belt then serves only as a support for the sheet material between adjacent pulleys, which support instead can be achieved by a second conveyor belt replacing translucent glass plate, if the sheet material should be accessible over the entire width for testing purposes.

Das im Bereich der Prüfeinrichtung Führungs- und Andruckfunktion übernehmende erste Transportband behindert jedoch die Durchführung einer Transmissionsmessung am Blattgut. Auch eine Schmutzmessung wird behindert, da das Blattgut bei einer solchen Messung üblicherweise von beiden Seiten beleuchtet werden muss. Daher wird das erste Transportband üblicherweise durch mehrere schmale, in Transportrichtung parallel nebeneinander verlaufende und zueinander beabstandete Riemen ersetzt. Aber auch damit ist eine vollflächige Messung des Blattguts über seine gesamte Breite nicht möglich. Die Positionen der Riemen machen sich vielmehr als dunkle Längsstreifen bei der Auswertung von z. B. transmittiertem Licht bemerkbar.However, the first conveyor belt in the area of the test device guiding and pressing function hinders the implementation of a transmission measurement on the sheet material. A dirt measurement is also hindered since the sheet material usually has to be illuminated from both sides in such a measurement. Therefore, the first conveyor belt is usually replaced by a plurality of narrow, parallel to each other in the transport direction and spaced apart belt. But even so a full-surface measurement of the sheet material over its entire width is not possible. The positions of the straps are rather than dark vertical stripes in the evaluation of z. B. transmitted light noticeable.

Um die freie Zugänglichkeit für Prüfzwecke zu gewährleisten, muß daher die Transportstrecke unterbrochen und das Blattgut von der Prüfeinrichtung im Freiflug gemessen werden. Problematisch ist die Messung im Freiflug aber bei niedrigen Transportgeschwindigkeiten und insbesondere im Falle von lappigem Blattgut. Die Schwerkraft kann hier unkalkulierbare Einflüsse auf das Blattgut nehmen und zum Blockieren der Maschine führen. Die DE-OS 26 55 580 beschreibt eine derartige Freiflugstrecke, wobei die Banknoten zwischen mehreren Riemenpaaren eingeklemmt gefördert werden. Vor und hinter der Prüfeinrichtung werden die Riemen über Umlenkrollen von der Transportstrecke weggeleitet, so dass das Blattgut die Prüfeinrichtung im Freiflug passiert. Dabei sind die einander gegenüberliegenden Riemenpaare auf Lücke zueinander angeordnet und greifen geringfügig ineinander ein. Dadurch wird den transportierten Banknoten ein reversibles wellenförmiges Profil senkrecht zur Transportrichtung aufgeprägt, welche zu einer Erhöhung der Steifheit des Blattguts in Transportrichtung führt. Die Freiflugstrecke lässt sich auf diese Weise zuverlässig überwinden. Die Profilbildung kann durch die Transportriemen selbst erfolgen, sie kann aber auch durch auf den Umlenkrollen angeordnete, elastische Ringe erzielt werden, deren Umfang in radialer Richtung der Umlenkrollen über die Transportriemen hinausragen. Es ist jedoch unmittelbar einsichtig, dass die Prüfung an wellenförmig verformtem Blattgut nicht ohne weiteres zuverlässig und gleichmäßigldurchführbar ist.In order to ensure the free accessibility for testing purposes, therefore, the transport route must be interrupted and the sheet material to be measured by the testing device in free flight. The problem is the measurement in free flight but at low transport speeds and in particular in the case of lappigem sheet material. Gravity can take unpredictable influences on the sheet material and cause the machine to lock up. The DE-OS 26 55 580 describes such a free flight path, wherein the banknotes are conveyed between several belt pairs clamped. Before and after the testing device, the belts are guided away via deflection rollers from the transport path, so that the sheet material passes the testing device in free flight. In this case, the opposing pairs of belts are arranged in a gap to each other and engage slightly into one another. As a result, a reversible wave-shaped profile perpendicular to the transport direction is impressed on the transported bank notes, which leads to an increase in the stiffness of the sheet material in the transport direction. The free flight distance can be overcome reliably in this way. The profile formation can be done by the transport belt itself, but it can also be achieved by arranged on the pulleys, elastic rings whose Extend circumference in the radial direction of the pulleys on the conveyor belt. However, it is immediately apparent that testing on undulating deformed sheet material is not readily reliable and uniformly practicable.

Aufgabe der vorliegenden Erfindung ist es daher, eine Einrichtung zum Bearbeiten von Blattgut vorzuschlagen, bei der das Blattgut zuverlässig an einer Prüfeinrichtung derart vorbeigeführt wird, dass es beidseitig über seine gesamte Breite zugänglich und zuverlässig prüfbar ist.The object of the present invention is therefore to propose a device for processing sheet material, in which the sheet material is reliably guided past a checking device in such a way that it is accessible and reliably testable on both sides over its entire width.

Diese Aufgabe wird durch eine Einrichtung mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. In davon abhängigen Ansprüchen sind vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung angegeben.This object is achieved by a device having the features of independent claim 1. In dependent claims advantageous developments and refinements of the invention are given.

Ähnlich der DE-OS 26 55 580 sieht auch die erfindungsgemäße Lösung koaxial zur Umlenkrolle Klemmringe vor, die das auf der Umlenkrolle geleitete Transportband geringfügig überragen, so dass das Blattgut in dem Moment, in dem es zwischen die beiden Komponenten der Prüfeinrichtung eingeführt wird, von dem Transportband abgehoben wird. Dabei klemmt das Blattgut zwischen den Klemmringen und den den Klemmringen gegenüberliegenden Transportmitteln. Im Gegensatz zur DE-OS 26 55 580 dienen die Klemmringe hier allerdings nicht dazu, dem Blattgut ein reversibles wellenförmiges Profil aufzuprägen, um dadurch eine Erhöhung der Steifheit des Blattguts zu erzielen. Vielmehr wird das Blattgut mittels der Klemmringe zuverlässig erfasst und geführt. Zur Unterstützung dieses Vorgangs ist eine mit den Klemmringen kämmende Leitplatte vorhanden. In dem Spalt zwischen der Leitplatte und der der Leitplatte gegenüberliegenden Komponente der Prüfeinrichtung befindet sich das Blattgut dann in einer definierten, ebenen Lage. Um die beidseitige Zugänglichkeit des Blattguts zu gewährleisten, ist die Leitplatte entsprechend den Anforderungen der betreffenden Prüfeinrichtungen anzupassen und besteht beispielsweise aus einem strahlungsdurchlässigen Material wie Kunststoff oder Glas und kann vielfältig gestaltet sein, beispielsweise auch als gitterförmige Platte. Das Blattgut wird somit mittels der Klemmringe von dem Transportband abgehoben und entlang der mit den Klemmringen kämmenden Leitplatte in ebener Ausrichtung z-wischen den beiden Komponenten der Prüfeinrichtung hindurchgeführt. Der Einfluss der Schwerkraft auf die Blattgutführung ist bei Transportgeschwindigkeiten von 10 m/s vernachlässigbar und auch bei 5 m/s so gering, dass mit Schwierigkeiten nicht zu rechnen ist.Similar to the DE-OS 26 55 580 Also sees the solution according to the invention coaxially to the guide roller clamping rings which slightly project beyond the conveyor belt guided on the pulley, so that the sheet material is lifted from the conveyor belt at the moment in which it is introduced between the two components of the test device. The sheet material clamps between the clamping rings and the transport means opposite the clamping rings. In contrast to DE-OS 26 55 580 However, the clamping rings here do not serve to impart a reversible wave-shaped profile to the sheet material, thereby achieving an increase in the stiffness of the sheet material. Rather, the sheet material is reliably detected and guided by means of the clamping rings. To support this process, there is a guide plate meshing with the clamping rings. In the gap between the guide plate and the guide plate opposite component of the test device, the sheet material is then in a defined, level position. To ensure the bilateral accessibility of the sheet material is the Matching guide plate according to the requirements of the relevant test equipment and consists for example of a radiation-transparent material such as plastic or glass and can be designed in many ways, for example as a grid-shaped plate. The sheet material is thus lifted by means of the clamping rings of the conveyor belt and guided along the meshing with the clamping rings guide plate in planar alignment z-wipe the two components of the test device. The influence of gravity on the sheet material handling is negligible at transport speeds of 10 m / s and so low even at 5 m / s that difficulties are not to be expected.

Die dem Transportband gegenüberliegenden Transportmittel können beispielsweise zueinander beabstandete Transportrollen sein, wobei die Klemmringe mit in Transportrichtung unmittelbar vor und vorzugsweise auch hinter der Prüfeinrichtung angeordneten Transportrollen bzw. Sensorrollen zusammenwirken. Die Transportmittel können aber auch ein weiteres Transportband umfassen, welches vor der Prüfeinrichtung mittels mindestens einer Umlenkrolle von der Transportstrecke weggeleitet wird. In diesem Falle können die Klemmringe entweder unmittelbar mit einer Oberfläche des zweiten Transportbands zusammenwirken oder mit entsprechenden, koaxial zur Umlenkrolle des zweiten Transportbands angeordneten Klemmringen.The transport means opposite the transport means may for example be mutually spaced transport rollers, wherein the clamping rings cooperate with in the transport direction immediately before and preferably also behind the test device arranged transport rollers or sensor rollers. However, the means of transport may also comprise a further conveyor belt, which is led away from the transport path in front of the testing device by means of at least one deflection roller. In this case, the clamping rings can either interact directly with a surface of the second conveyor belt or with corresponding coaxial with the deflection roller of the second conveyor belt arranged clamping rings.

Vorzugsweise werden das oder die Transportbänder mittels der Umlenkrolle und gegebenenfalls weiteren Umlenkrollen um die Prüfeinrichtung herumgeleitet. Dies bietet gegenüber Transportbändern, die vor und hinter der Prüfeinrichtung mittels Umkehrrollen um 180° umgekehrt werden, wesentliche funktionale Vorteile, da sich z.B. keine beschädigten Banknotenteile zwischen Rolle und zurücklaufenden Bänder einfädeln können, die ansonsten zu Transportströrungen führen würden.Preferably, the one or more conveyor belts are passed around the test device by means of the deflection roller and optionally further deflection rollers. Compared with conveyor belts, which are reversed by 180 ° in front of and behind the checking device by means of reversing rollers, this offers substantial functional advantages, since there are, for example, no damaged banknote parts between thread and returning belts can thread, which would otherwise lead to transport problems.

Vorteilhafterweise bestehen die Klemmringe zumindest entlang ihrem Außenumfang aus elastischem Material, wie z. B. Polyurethan oder Silicon. Solche Klemmringen können sich beim Transport von Mehrfachabzügen ohne Hub der Klemmringdrehachse so verformen, dass solche Mehrfachabzüge zwischen den Klemmringe und den gegenüberliegenden Transportmitteln hindurch transportiert werden können, ohne dass es zu Staufällen kommt. Dabei überschneidet sich die Umfangsbahn der Klemmringe vorzugsweise geringfügig mit einer Umfangsbahn der gegenüberliegenden, mit ihnen zusammenwirkenden Transportmittel, so dass immer ein Mindestdruck zwischen den Klemmringen und den gegenüberliegenden Transportmitteln für den zuverlässigen Transport des Blattguts zur Verfügung steht.Advantageously, the clamping rings consist at least along their outer circumference of elastic material, such. As polyurethane or silicone. Such clamping rings can deform during the transport of multiple prints without lifting the clamping ring axis of rotation so that such multiple deductions between the clamping rings and the opposite means of transport can be transported through without causing stalls. In this case, the circumferential path of the clamping rings preferably overlaps slightly with a circumferential path of the opposite, cooperating with them transport, so that there is always a minimum pressure between the clamping rings and the opposite means of transport for the reliable transport of the sheet material available.

Aus konstruktiven. Gründen wird es bevorzugt, die Klemmringe und die mindestens eine Umlenkrolle auf einer gemeinsamen Welle anzuordnen, wobei die Klemmringe im einfachsten Fall als Erhabenheiten auf der Oberfläche der Umlenkrolle oder als separate Klemmringe zwischen den einzelnen Riemen des Transportbands und diese radial überragend angeordnet sein können. Vorzugsweise handelt es sich aber bei den Klemmringen um unabhängig von den Umlenkrollen passiv drehende Rollen, die mit dem gegenüberliegenden, aktiv angetriebenen Transportmittel mitdrehen. Diese bevorzugte Variante hat mehrere Vorteile. Einerseits wäre bei starr mit der Umlenkrolle verbundenen Klemmringe die Umfangsgeschwindigkeit und damit die auf das Blattgut wirkende Transportgeschwindigkeit der Klemmringe größer als die Transportgeschwindigkeit des Transportbands, da die Klemmringe das Transportband zumindest geringfügig radial überragen. Dies wird vermieden, wenn die Transportgeschwindigkeit durch die den Klemmringen gegenüberliegenden Transportmittel bestimmt wird. Andererseits sind wegen der elastischen Klemmringe keine Trägheitsmassen der Rollenhalterung zu überwinden, wenn das Blattgut in die Prüfeinrichtung einläuft. Es erfolgt lediglich eine elastische Verformung des Klemmringmantels. Dadurch ist ein störungsfreier Transport auch von z.B. zehn Mehrfachabzügen möglich.From constructive. For reasons, it is preferable to arrange the clamping rings and the at least one deflection roller on a common shaft, wherein the clamping rings can be arranged in the simplest case as sublime on the surface of the guide pulley or as separate clamping rings between the individual belts of the conveyor belt and these radially outstanding. Preferably, however, in the clamping rings to passively independent of the pulleys rotating rollers that rotate with the opposite, actively driven transport. This preferred variant has several advantages. On the one hand, the circumferential speed and thus the transport speed of the clamping rings acting on the sheet material would be greater than the transport speed of the conveyor belt in the case of clamping rings connected rigidly to the deflection roller, since the clamping rings project radially at least slightly beyond the conveyor belt. This is avoided if the transport speed through the Clamping opposite transport is determined. On the other hand, due to the elastic clamping rings no inertial masses of the roll holder to overcome when the sheet material enters the testing device. There is only an elastic deformation of the clamping ring jacket. As a result, a trouble-free transport of eg ten multiple prints is possible.

Eine weitere vorteilhafte Ausgestaltung sieht vor, dass die Klemmringe untereinänder starr miteinander verbunden sind, so dass sie absolut gleich laufen. Dadurch wird eine Schrägstellung des Blattguts beim Einlaufen in die Prüfeinrichtung vermieden.A further advantageous embodiment provides that the clamping rings are interconnected rigidly together, so that they run absolutely the same. As a result, an inclination of the sheet material is avoided when entering the test device.

Eine bevorzugte Ausgestaltung der Leitplatte sieht vor, dass sie relativ zu der ihr gegenüberliegenden Komponente der Prüfeinrichtung einen Führungskanal für das zu prüfende Blattgut definiert, dessen engste Stelle in Transportrichtung hinter den Klemmringen liegt, damit das Blattgut ungehindert vor der Klemmstelle einlaufen und dann von den elastischen Klemmringen erfasst werden kann.A preferred embodiment of the guide plate provides that it defines relative to the opposing component of the test device a guide channel for the sheet to be tested, the narrowest point in the transport direction behind the clamping rings, so that the sheet material unhindered run in front of the nip and then from the elastic Clamping rings can be detected.

Es hat sich weiter als vorteilhaft erwiesen, die Leitplatte geringfügig schräg zu stellen, so dass sich der Führungskanal hinter der engsten Stelle kontinuierlich aufweitet.It has also proven to be advantageous to make the guide plate slightly oblique, so that the guide channel widens continuously behind the narrowest point.

Nachfolgend wird die Erfindung beispielhaft anhand der begleitenden Zeichnungen erläutert. Darin zeigen:

  • Figur 1 schematisch einen Ausschnitt aus einer Banknotenbearbeitungsvorrichtung mit mehreren Sensorplätzen SP 1 bis SP 5.
  • Figur 2 einen Teilausschnitt aus Figur 1 mit einem einzelnen Sensorplatz gemäß einer ersten Ausführungsform,
  • Figur 3 eine Umlenkrolle mit Klemmringen,
  • Figur 4 eine Kombination zweier Umlenkrollen mit Klemmringen und damit kämmender Leitplatte, und
  • Figur 5 einen Teilausschnitt aus Figur 1 mit einem einzelnen Sensorplatz gemäß einer zweiten Ausführungsform.
The invention will now be described by way of example with reference to the accompanying drawings. Show:
  • FIG. 1 schematically a section of a banknote processing device with multiple sensor locations SP 1 to SP 5th
  • FIG. 2 a partial section FIG. 1 with a single sensor location according to a first embodiment,
  • FIG. 3 a pulley with clamping rings,
  • FIG. 4 a combination of two pulleys with clamping rings and thus meshing guide plate, and
  • FIG. 5 a partial section FIG. 1 with a single sensor slot according to a second embodiment.

In Figur 1 ist schematisch ein Ausschnitt aus einer Banknotenbearbeitungsvorrichtung mit insgesamt 5 Sensorplätzen SP 1 bis SP 5 gezeigt. Banknoten 100 werden entlang einer Transportstrecke 1 an den Sensorplätzen SP vorbeigeführt. Die Transportstrecke 1 wird auf der einen Seite der transportierten Banknoten durch ein Transportband 2 und auf der anderen Seite durch in Transportrichtung voneinander beabstandete Transportrollen 3 gebildet. Die Banknoten 100 werden zwischen dem Transportband 2 und den gegenüberliegenden Transportrollen 3 gehalten und an den Sensorplätzen SP vorbeigeführt, die jeweils zwischen zwei benachbarten Transportrollen 3 angeordnet sind. Durch die bogenförmige Anordnung benachbarter Sensorplätze SP jeweils in einen Winkel um 3° oder mehr wird erreicht, dass das Transportband 2 ohne zusätzliche Andruckmittel eine Anpresskraft auf die transportierten Banknoten 100 in Richtung der Sensorplätze SP ausüben kann. Anstelle der dem Transportband 2 gegenüberliegenden Transportrollen 3 können gegebenenfalls auch andere Transportmittel vorgesehen sein. Insbesondere kann es sich bei den Transportrollen 3 um Umlenkrollen eines dem Transportband 2 gegenüberliegenden Transportbands handeln. Sofern ein Sensorplatz SP nicht durch einen Sensor belegt ist, kann die Transportstrecke in dem entsprechenden Bereich durch eine einfache Leitplatte realisiert werden.In FIG. 1 schematically a section of a banknote processing device with a total of 5 sensor slots SP 1 to SP 5 is shown. Banknotes 100 are guided past a transport path 1 at the sensor locations SP. The transport path 1 is formed on one side of the transported banknotes by a conveyor belt 2 and on the other side by transport rollers 3 spaced from each other in the transport direction. The banknotes 100 are held between the conveyor belt 2 and the opposite transport rollers 3 and guided past the sensor locations SP, which are each arranged between two adjacent transport rollers 3. By the arcuate arrangement of adjacent sensor locations SP in each case at an angle of 3 ° or more is achieved that the conveyor belt 2 can exert a pressing force on the transported banknotes 100 in the direction of the sensor locations SP without additional pressure means. Instead of the transport belt 2 opposite transport rollers 3 may optionally be provided other means of transport. In particular, the transport rollers 3 may be deflection rollers of a conveyor belt 2 opposite the conveyor belt. If a sensor space SP is not occupied by a sensor, the transport distance be realized in the corresponding area by a simple guide plate.

Im dargestellten Ausführungsbeispiel sind alle fünf Sensorplätze belegt, wobei die in Transportrichtung ersten drei Sensoren SP 1 bis SP 3 und der letzte Sensor SP 4 dafür ausgebildet sind, die an ihnen vorbeitransportierten Banknoten einseitig zu erfassen. Auch der vierte Sensor am Sensorplatz SP 4 dient der einseitigen Erfassung der Banknote 100. Es handelt sich in diesem Falle jedoch um einen Transmissionssensor 4, der die Beleuchtung der Banknoten 100 von der gegenüberliegenden Banknotenseite mittels einer Strahlungsquelle 5 erfordert, um Messergebnisse zu liefern. Damit die Banknoten 100 über die gesamte Transportbreite mittels der Strahlungsquelle 5 bestrahlt und mittels des gegenüberliegenden Sensors 4 erfasst werden können, wird das Transportband 2 in dem betreffenden Abschnitt mittels einer ersten Umlenkrolle 6 von der Transportstrecke 1 weggeleitet, um die Strahlungsquelle 5 herumgeleitet und mittels einer zweiten Umlenkrolle 7 wieder der Transportstrecke 1 zugeleitet. Zwischen den beiden Umlenkrollen 6 und 7 wird die Transportstrecke 1 durch eine Leitplatte 8 vervollständigt. Die Banknoten 100 werden dann durch einen zwischen der Leitplatte 8 und dem Sensor 4 gebildeten Führungskanal hindurchtransportiert und durch die Leitplatte 8 hindurch von der Strahlungsquelle 5 bestrahlt.In the illustrated embodiment, all five sensor locations are occupied, wherein the first three sensors SP 1 to SP 3 in the transport direction and the last sensor SP 4 are adapted to detect the banknotes transported past them on one side. The fourth sensor at the sensor location SP 4 also serves to detect the banknote 100 on one side. However, in this case it is a transmission sensor 4 which requires the illumination of the banknotes 100 from the opposite banknote side by means of a radiation source 5 in order to provide measurement results. Thus, the banknotes 100 can be irradiated over the entire transport width by means of the radiation source 5 and detected by the opposite sensor 4, the conveyor belt 2 is led away in the relevant section by means of a first guide roller 6 of the transport path 1, passed around the radiation source 5 and by means of a second deflection roller 7 again fed to the transport path 1. Between the two pulleys 6 and 7, the transport path 1 is completed by a guide plate 8. The banknotes 100 are then transported through a guide channel formed between the guide plate 8 and the sensor 4 and irradiated through the guide plate 8 by the radiation source 5.

Figur 2 zeigt in größerem Detail einen Ausschnitt aus Figur 1 im Bereich des Sensorplatzes SP 4. Das Transportband 2 besteht aus einer Mehrzahl von nicht im einzelnen dargestellten, parallel nebeneinander verlaufenden Rundriemen, die mittels der ersten Umlenkrolle 6 von der Transportstrecke 1 weg und mittels der zweiten Umlenkrolle 7 der Transportstrecke 1 wieder zugeführt werden. Anhand der im Schnitt dargestellten ersten Umlenkrolle 6 wird erkennbar, dass die einzelnen Rundriemen des Transportbands 2 in zugehörigen Nuten 9 verlaufen. Die Tiefe der Nuten 9 ist größer gewählt als die Dicke des Transportbands 2. Der äußere Umfang der Umlenkrolle 6 ragt somit radial über das Transportband 2 hinaus und übernimmt die Funktion eines Klemmrings 10. Dieser Klemmring 10 und die dem Klemmring 10 gegenüberliegende Transportrolle 3 erfassen eine mittels des Transportbands 2 zugeführte Banknote, heben die Banknote von dem Transportband 2 ab und transportieren sie zwischen dem Sensor 4 und der Strahlurigsquelle 5 hindurch. Die zweite Umlenkrolle 7 ist genauso aufgebaut und wirkt mit der ihr gegenüberliegenden Transportrolle 3 genauso zusammen wie die erste Umlenkrolle 6. FIG. 2 shows a detail in more detail FIG. 1 in the region of the sensor station SP 4. The conveyor belt 2 consists of a plurality of not shown in detail, parallel juxtaposed round belt, which are supplied by the first guide roller 6 away from the transport path 1 and by means of the second guide roller 7 of the transport path 1 again. On the basis of the first guide pulley 6 shown in section it can be seen that the individual round belts of the conveyor belt 2 in associated grooves 9 run. The depth of the grooves 9 is chosen to be greater than the thickness of the conveyor belt 2. The outer circumference of the guide roller 6 thus protrudes radially beyond the conveyor belt 2 and assumes the function of a clamping ring 10. This clamping ring 10 and the clamping roller 10 opposite transport roller 3 detect a Banknote supplied by the conveyor belt 2 lifts the banknote from the conveyor belt 2 and transports it between the sensor 4 and the jet source 5. The second guide roller 7 is constructed in the same way and interacts with the transport roller 3 opposite it in the same way as the first guide roller 6.

Der Klemmring 10 oder zumindest dessen Oberfläche ist aus einem elastischen Material, wie z. B. Polyurethan oder Silicon, geformt. Die Umfangslinien des Klemmrings 10 und der gegenüberliegenden Transportrolle 3 überlappen sich geringfügig um beispielsweise 0,2 mm, so dass einerseits die zuverlässige Erfassung einer einlaufenden Banknote durch Erzeugen eines Mindestdrucks auf die Banknote gewährleistet ist und dass andererseits Mehrfachabzüge von beispielsweise bis zu 10 Banknoten zwischen dem Klemmring 10 und der Transportrolle 3 ohne Hub der Umlenkrolle 6 transportiert werden können.The clamping ring 10 or at least the surface thereof is made of an elastic material, such. As polyurethane or silicone molded. The circumferential lines of the clamping ring 10 and the opposite transport roller 3 overlap slightly by, for example, 0.2 mm, so that on the one hand the reliable detection of an incoming banknote is guaranteed by generating a minimum pressure on the banknote and on the other hand multiple deductions of, for example, up to 10 banknotes between the Clamping ring 10 and the transport roller 3 can be transported without lifting the deflection roller 6.

Verschiedene Leitelemente sind vorgesehen, um den ebenen Transport der Banknote am Sensor 4 vorbei zu gewährleisten. Dazu bildet die Leitplatte 8 gemeinsam mit dem Sensorkopf des gegenüberliegenden Sensors 4 und mit in Transportrichtung vor und hinter dem Sensorkopf angeordneten Leitkämmen 12 einen Führungskanal 11. Die Leitplatte 8 ist einstellbar (nicht dargestellt), um den Führungskanal an das zu bearbeitende Blattgut anpassen zu können. Üblicherweise wird die Spaltbreite allerdings nur vor der Auslieferung des Geräts an einen Kunden auf einen optimalen Wert eingestellt. Das Einlaufzone 13 der Leitplatte 8 kämmt mit den Klemmringen 10 der Umlenkrolle 6. In entsprechender Weise kämmen die Leitkämme 12 mit den Transportrollen 3. Das heißt, auch die Transportrollen 3 weisen parallele umlaufende Nuten auf, welche in der Figur 2 nicht explizit dargestellt sind. Das Einlaufende 13 der Leitplatte 8 ist von der Transportstrecke 1 weggebogen, um eine zuverlässige Einführung der Banknoten in den Führungskanal 11 zu gewährleisten. Der durch den Führungskanal 11 definierte Transportspalt für die Banknoten besitzt eine engste Spaltweite in einem geringfügigen Abstand a hinter dem Berührungspunkt des Klemmrings 10 mit der gegenüberliegenden Transportrolle 3. Dieser Abstand a beträgt vorzugsweise etwa 4 bis 5 mm bei einer engsten Spaltweite von 1,5 mm. Die Spaltweite des Führungskanals 11 weitet sich ab der engsten Stelle in Transportrichtung kontinuierlich auf beispielsweise ca. 2,5 mm am Ende des Führungskanals auf. Durch Verlagerung der Leitplatte 8 lassen sich der Abstand a, die engste Spaltweite und die maximale Spaltweite am Ende des Führungskanals variieren. Wie erwähnt müssen diese Einstellungen üblicherweise nur einmal vor der Auslieferung an den Kunden erfolgen.Various guide elements are provided to ensure the planar transport of the bill past the sensor 4. For this purpose, the guide plate 8 together with the sensor head of the opposite sensor 4 and arranged in the transport direction and behind the sensor head Leitkämmen 12 a guide channel 11. The guide plate 8 is adjustable (not shown) to adjust the guide channel to the sheet material to be processed can , Usually, however, the gap width is set to an optimum value only before the delivery of the device to a customer. The inlet zone 13 of the guide plate 8 meshes with the clamping rings 10 of the guide roller 6. In a corresponding manner comb the guide combs 12 with the transport rollers 3. That is, the transport rollers 3 have parallel circumferential grooves, which in the FIG. 2 are not explicitly shown. The inlet end 13 of the guide plate 8 is bent away from the transport path 1 in order to ensure reliable insertion of the banknotes into the guide channel 11. The transport gap defined by the guide channel 11 for the banknotes has a narrowest gap width at a slight distance a behind the point of contact of the clamping ring 10 with the opposite transport roller 3. This distance a is preferably about 4 to 5 mm with a narrowest gap width of 1.5 mm , The gap width of the guide channel 11 widens continuously from the narrowest point in the transport direction to, for example, about 2.5 mm at the end of the guide channel. By shifting the guide plate 8, the distance a, the narrowest gap width and the maximum gap width at the end of the guide channel can be varied. As mentioned, these settings usually need to be done only once before delivery to the customer.

Figur 3 zeigt in weiterem Detail die konstruktive Gestaltung der Umlenkrolle 6 mit den Klemmringen 10. In dem konkreten Ausführungsbeispiel besteht das Transportband aus drei parallelen Endlosriemen, die jeweils auf einer einzeln gelagerten Einzelrolle 16 der Umlenkrolle 6 laufen. Zwischen den Einzelrollen 16 sind die Klemmringe 10 vorgesehen, welche ihrerseits als selbständige Klemmrollen ausgebildet sind. Die Klemmrollen 10 und die Einzelrollen 16 werden auf einer innen liegenden durchgehenden Welle 30 aufgefädelt und an beiden Enden mit Schrauben 14 verspannt. Die Rollen 10, 16 werden dabei passiv betrieben. D. h., während die Einzelrollen 16 mit der Transportgeschwindigkeit der auf ihnen laufenden Endlosriemen drehen, drehen die Klemmrollen 10 passiv über die Lager 31 mit der gegenüberliegenden, aktiv angetriebenen Transportrolle 3 mit. Die Rotationsgeschwindigkeit der Einzelrollen 16 ist somit nicht notwendigerweise identisch mit der Rotationsgeschwindigkeit der Klemmrollen 10. Daher laufen die Klemmrollen 10 auf der mit Lager 31 gelagerten Welle 30 unabhängig von den Einzelrollen 16. Allerdings sind die Klemmrollen 10 durch die beiden Schrauben 14 verspannt, starr miteinander verbunden, um einen Schräglauf der Banknoten beim Einlaufen zwischen die Klemmrollen 10 und die den Klemmrollen 10 gegenüberliegende Transportrolle 3 zu vermeiden. FIG. 3 shows in more detail the structural design of the guide roller 6 with the clamping rings 10. In the concrete embodiment, the conveyor belt consists of three parallel endless belts, each running on a single mounted single roller 16 of the guide roller 6. Between the individual rollers 16, the clamping rings 10 are provided, which in turn are designed as independent clamping rollers. The pinch rollers 10 and the individual rollers 16 are threaded onto an internal continuous shaft 30 and clamped at both ends with screws 14. The rollers 10, 16 are operated passively. D. h., While the single rollers 16 rotate with the transport speed of the endless belt running on them, the pinch rollers 10 passively rotate over the bearings 31 with the opposite, actively driven transport roller 3 with. The rotational speed of the individual rollers 16 is thus not necessarily identical to the rotational speed of the pinch rollers 10. Therefore, the pinch rollers 10 run on the bearing with bearing 31 shaft 30 regardless of the individual rollers 16. However, the pinch rollers 10 are braced by the two screws 14, rigidly together connected to prevent a skew of the banknotes when entering between the pinch rollers 10 and the pinch rollers 10 opposite transport roller 3.

Figur 4 zeigt perspektivisch auf die Gleitplatte blickend eine Baugruppe bestehend aus der Umlenkrolle 6 und der Umlenkrolle 7 mit den zugehörigen Einzelrollen 16 und Klemmringen bzw. Klemmrollen 10 sowie der damit kämmenden Leitplatte 8. Man erkennt, dass die Leitplatte 8 nicht nur mit den Klemmringen bzw. Klemmrollen 10 sondern gleichzeitig auch mit den Einzelrollen 16 kämmt. FIG. 4 shows in perspective on the sliding plate looking an assembly consisting of the guide roller 6 and the guide roller 7 with the associated individual rollers 16 and clamping rings or pinch rollers 10 and the thus meshing guide plate 8. It can be seen that the guide plate 8 not only with the clamping rings or pinch rollers 10 but at the same time with the single rollers 16 meshes.

Figur 5 zeigt ein weiteres Ausführungsbeispiel, welches sich im Wesentlichen von dem in Figur 2 dargestellten Ausführungsbeispiel dadurch unterscheidet, dass an Stelle der Strahlungsquelle 5 ein zweiter Sensor 15 vorhanden ist, um die durch den Führungskanal 11 transportierten Banknoten beidseitig zu erfassen. Dementsprechend ist die Leitplatte 8 kürzer ausgebildet, da der Sensorkopf des Sensors 15 die Leitfunktion im Führungskanal 11 übernimmt. Es hat sich als vorteilhaft herausgestellt, wenn die Einlaufkante der Sensoren 4 und 15 geringfügig gegenüber der Transportebene der Leitplatte 8 bzw. des Leitelements 12 um beispielsweise 0,5 mm zurückgesetzt ist und eine kurze, flache Anlaufschräge bildet. FIG. 5 shows a further embodiment, which is essentially of the in FIG. 2 illustrated embodiment, characterized in that instead of the radiation source 5, a second sensor 15 is provided to detect the transported through the guide channel 11 banknotes on both sides. Accordingly, the guide plate 8 is formed shorter, since the sensor head of the sensor 15 assumes the lead function in the guide channel 11. It has been found to be advantageous if the inlet edge of the sensors 4 and 15 is slightly set back relative to the transport plane of the guide plate 8 and the guide element 12 by 0.5 mm, for example, and forms a short, flat run-on slope.

Claims (11)

  1. An apparatus for processing sheet material, in particular a bank-note processing machine, comprising
    - a transport path (1) for the sheet material (100),
    - a checking device (SP 4) for checking the sheet material (100) having at least two components (4, 5; 4, 15) opposing each other along the transport path (1),
    - a transport belt (2) before the checking device in the transport direction and, opposingly thereto, transport means (3) for holding and guiding the sheet material, the transport belt (2) being directed away from the transport path (1) before the checking device by means of at least one diverting roller (6; 16) so that the sheet material is without transport-belt guidance in the detection area of the checking device, and
    - clamping rings (10) which are disposed coaxially with the at least one diverting roller (6; 16) disposed before the checking device in the transport direction,
    wherein the transport means (3) opposing the transport belt (2) cooperate with the clamping rings (10) to grasp sheet material (100) guided in the transport path (1) and to guide it through between the two components (4, 5; 4, 15) of the checking device (SP 4),
    characterized in that
    the clamping rings (10) protrude beyond the transport belt (2) and lift the sheet material (100) off the transport belt (2), and by the cooperation of the transport means (3) with the clamping rings (10) the sheet material is guided through between the two components of the checking device in flat alignment, and for supporting this process there is present a guide plate (8) which meshes with the clamping rings (10).
  2. The apparatus according to claim 1, characterized in that the transport belt (2) is directed around the checking device (SP 4) by means of the least one diverting roller (6; 16).
  3. The apparatus according to claim 1 or 2, characterized in that the clamping rings (10) consist of elastic material at least along their outside circumference.
  4. The apparatus according to claim 3, characterized in that the circumferential track of the clamping rings (10) overlaps slightly with a circumferential track of the transport means (3) cooperating therewith.
  5. The apparatus according to any of claims 1 to 4, characterized in that the clamping rings (10) and the at least one diverting roller (6; 16) are disposed on a common shaft (14).
  6. The apparatus according to any of claims 1 to 5, characterized in that the transport means (3) are actively driven, and the clamping rings (10) rotate passively with the transport rollers (3) independently of the at least one diverting roller (6; 16).
  7. The apparatus according to any of claims 1 to 6, characterized in that the clamping rings (10) are rigidly interconnected.
  8. The apparatus according to any of claims 1 to 7, characterized in that the guide plate (8) extends opposite one of the two components (4) of the checking device (SP 4) along the transport path (1) and defines a guide channel (11) for the sheet material to be checked, whose narrowest point is located behind the clamping rings (10) in the transport direction.
  9. The apparatus according to claim 8, characterized in that the guide channel (11) widens continuously behind the narrowest point in the transport direction.
  10. The apparatus according to any of claims 1 to 9, characterized in that the transport means (3) opposing the transport belt (2) are transport rollers spaced apart in the transport direction.
  11. The apparatus according to any of claims 1 to 9, characterized in that the transport means (3) opposing the transport belt (2) likewise comprise a transport belt which is directed away from the transport path (1) before the checking device (SP 4) by means of at least one diverting roller.
EP04764875A 2003-09-09 2004-09-06 Device for processing sheet material Active EP1663829B1 (en)

Applications Claiming Priority (2)

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DE10341589A DE10341589A1 (en) 2003-09-09 2003-09-09 Device for processing sheet material
PCT/EP2004/009927 WO2005026028A1 (en) 2003-09-09 2004-09-06 Device for processing sheet material

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EP1663829B1 true EP1663829B1 (en) 2009-11-25

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CN (1) CN100515894C (en)
AT (1) ATE449740T1 (en)
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DE102015006667A1 (en) 2015-05-22 2016-11-24 Giesecke & Devrient Gmbh Device for processing sheet material

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US20070063431A1 (en) 2007-03-22
RU2355622C2 (en) 2009-05-20
HK1096645A1 (en) 2007-06-08
WO2005026028A1 (en) 2005-03-24
CN1845864A (en) 2006-10-11
RU2006111581A (en) 2008-01-20
US7503562B2 (en) 2009-03-17
CN100515894C (en) 2009-07-22
EP1663829A1 (en) 2006-06-07
DE10341589A1 (en) 2005-03-31
DE502004010431D1 (en) 2010-01-07

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