EP1252082B1 - Device and method for detecting paper sheets - Google Patents
Device and method for detecting paper sheets Download PDFInfo
- Publication number
- EP1252082B1 EP1252082B1 EP01900364A EP01900364A EP1252082B1 EP 1252082 B1 EP1252082 B1 EP 1252082B1 EP 01900364 A EP01900364 A EP 01900364A EP 01900364 A EP01900364 A EP 01900364A EP 1252082 B1 EP1252082 B1 EP 1252082B1
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- Prior art keywords
- pallet
- reflection
- point
- sensor
- sensing
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- 238000000034 method Methods 0.000 title claims description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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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
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/36—Positioning; Changing position
- B65H2301/363—Positioning; Changing position of material in pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/15—Height, e.g. of stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/23—Coordinates, e.g. three dimensional coordinates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/51—Presence
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/60—Optical characteristics, e.g. colour, light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
- B65H2553/41—Photoelectric detectors
- B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter
Definitions
- the present invention relates to a device the detection of the presence and position of Ream paper sheets, in particular of securities bills, on Pallets allowed.
- the present invention relates to another method for such detection.
- a problem with which one in the field of Production of printed sheets is often faced is the exact positioning of the sheet pile on the Pallets.
- a printing process for paper sheets, for example, for securities, namely sheet pile often on pallets from one machine to another transported to the different steps of the procedure to go through Thus one leads a given machine a stack of sheets on a pallet, transfers the Sheet pile into the inlet of the machine, pass the bows individually into the machine so that the machine can do its job Process step, for example, a print, a Numbering or the like, and can perform at the exit of the machine the sheet pile on a pallet come back.
- the sheets stacked on a pallet must open safe way from the pallet to the feed table of the Machine be transferred.
- This transfer can be on done in different ways: for example, the palette be arranged on a feed table on which the Pallet in a known reference position of a Transmission system is located; the transmission system, the In particular, a suitable gripper system for gripping the Sheet stack includes, can be supplied; a bridge can be lowered to the pallet with the feed table of the Machine to connect, and the stack can from the pallet be conveyed to the feed table.
- a first problem is that it happens that the pile of sheets on pallets of different material be delivered.
- piled up Bows on pallets of metal for example of steel, whose surface is reflective, or on pallets Plastic whose surface is dull, can be received.
- the detection system must therefore be able to Presence of sheets or sheet stacks independent of the type of pallet used, each one Palette type for this reason a different one Has reflection coefficient.
- a second problem is that in different colors printed sheets on the performance of the acquisition sensor system used: as the different colors a different Reflection behavior, it is possible that the Detection system the presence of bows on one can not capture the given pallet.
- the object of the invention in the Development of a device and a method which are reliable and not by external parameters, such as Example the material of the pallets, the color of the print or even the presence of security elements, such as for example holograms or the like, on imprints, to be influenced.
- the invention has numerous advantages and In particular, it can be stated that the device can be easily produced and their use is reliable.
- a sheet stack 1 is shown on a pallet 2, wherein the pallet 2 is arranged on an alignment table 3.
- a frame 4 is provided, which can sink over the stack and start up again.
- this frame 4 supports a gripper system 5 which can move the pallets and a detection system.
- the detection system comprises two optical probes 7 and 8 which are fixed to the supports 9 and 10.
- the supports 9 and 10 are in turn by means of pneumatic cylinders 11 and 12 (see Figure 3), which allow movement of the optical probes 7 and 8 between a starting position and an end position, attached to the frame 4. This end position is shown schematically in Figure 3 by the optical sensor 7 'and 8'.
- the distance between the starting position and the end position can be adjusted by moving stops.
- the system can be adapted to different hologram sizes.
- the optical sensors 7 and 8 respectively emit a light beam 13 and 14 whose reflection on the pallet 2 is used for detection.
- the sensors 7 and 8 each emit a light beam 13, 14, which is not perpendicular with respect to the surface of the sheets of the stack 1, that is, the pallet 2, but with respect to the surface of the stack is preferably angled by 40 °, not to the different reflection coefficients of the pallets, or the color of the prints on the paper, to be affected.
- End stops can be assigned to the arrival of the sensors to capture, such as proximity sensors or like.
- the inclination of the light rays with respect to the surface of the arches 40 ° is possible.
- the described example includes two Feeler, thus also the detection of a sheet pile allowed, which is obliquely aligned on the pallet is.
- the length of the track, over which the Feeler are moved from oneself on the arches located imprints from.
- These Track could thus be shorter if the bows no Hologram included, and thus could at this step Time to be saved.
Landscapes
- Controlling Sheets Or Webs (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Paper (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung, die die Erfassung des Vorhandenseins und der Position von Ries Papierbögen, insbesondere von Wertpapierbögen, auf Paletten gestattet. Die vorliegende Erfindung betrifft des weiteren ein Verfahren für eine solche Erfassung.The present invention relates to a device the detection of the presence and position of Ream paper sheets, in particular of securities bills, on Pallets allowed. The present invention relates to another method for such detection.
Ein Problem, mit dem man auf dem Gebiet der Herstellung von bedruckten Bögen häufig konfrontiert wird, ist die genaue Positionierung der Bogenstapel auf den Paletten. Bei einem Druckverfahren für Papierbögen, beispielsweise für Wertpapiere, werden nämlich Bogenstapel oftmals auf Paletten von einer Maschine zur anderen transportiert, um die verschiedenen Schritte des Verfahrens zu durchlaufen. Somit führt man einer gegebenen Maschine einen Bogenstapel auf einer Palette zu, überträgt den Bogenstapel in den Einlaß der Maschine, führt die Bögen einzeln in die Maschine ein, damit die Maschine ihren Verfahrensschritt, zum Beispiel einen Druck, eine Numerierung oder dergleichen, durchführen kann, und stellt am Ausgang der Maschine den Bogenstapel auf einer Palette wieder her.A problem with which one in the field of Production of printed sheets is often faced is the exact positioning of the sheet pile on the Pallets. In a printing process for paper sheets, for example, for securities, namely sheet pile often on pallets from one machine to another transported to the different steps of the procedure to go through. Thus one leads a given machine a stack of sheets on a pallet, transfers the Sheet pile into the inlet of the machine, pass the bows individually into the machine so that the machine can do its job Process step, for example, a print, a Numbering or the like, and can perform at the exit of the machine the sheet pile on a pallet come back.
Bei einem industriellen Produktionsverfahren wird dem Eingang einer Maschine natürlich nicht nur eine einzige Palette zugeführt, sondern ein kontinuierlicher Fluß von Paletten und Bogenstapeln wird zu jeder Maschine hin- und von ihr weggeführt.In an industrial production process, the Of course, not just a single machine entrance Pallet fed but a continuous flow of Pallets and sheet piles go back and forth to each machine led away from her.
Während die Bildung von Bogenstapeln am Ausgang einer Maschine einfach ist, wobei jeder Bogen, der von der Maschine bearbeitet wurde, einzeln austritt, ist das Laden von Bogenstapeln von Paletten zum Eingang der Maschine komplizierter.While the formation of sheet stacks at the exit of a Machine is simple, with every bow being made by the Machine was processed, single exit, is loading from sheet pile of pallets to the entrance of the machine complicated.
Die auf einer Palette aufgestapelten Bögen müssen auf sichere Weise von der Palette auf den Zuführtisch der Maschine übertragen werden. Diese Übertragung kann auf verschiedene Weise erfolgen: zum Beispiel kann die Palette auf einem Zuführtisch angeordnet werden, auf dem sich die Palette in einer bekannten Bezugsposition eines Übertragungssystems befindet; das Übertragungssystem, das insbesondere ein geeignetes Greifersystem zum Ergreifen des Bogenstapels umfaßt, kann zugeführt werden; ein Steg kann abgesenkt werden, um die Palette mit dem Zuführtisch der Maschine zu verbinden, und der Stapel kann von der Palette zu dem Zuführtisch befördert werden.The sheets stacked on a pallet must open safe way from the pallet to the feed table of the Machine be transferred. This transfer can be on done in different ways: for example, the palette be arranged on a feed table on which the Pallet in a known reference position of a Transmission system is located; the transmission system, the In particular, a suitable gripper system for gripping the Sheet stack includes, can be supplied; a bridge can be lowered to the pallet with the feed table of the Machine to connect, and the stack can from the pallet be conveyed to the feed table.
In diesem Stadium erschien es erforderlich, eine Erfassung des Vorhandenseins und der Position des Bogenstapels auf der Palette vorzunehmen. Befindet sich kein Bogen auf der Palette, muß nämlich der oben beschriebene Übertragungsprozeß der Bögen vermieden und stattdessen die Palette gewechselt werden, und wenn der Bogenstapel auf der Palette schlecht positioniert ist, wenn er sich beispielsweise zu nahe an dem Rand der Palette befindet, an dem der Steg sich abstützen wird, oder schräg ausgerichtet ist, kann er die Bewegung des Stegs behindern, was dann zu einem Blockieren der Maschine führen wird und den Eingriff einer Bedienperson erforderlich macht. Bei einem industriellen Produktionsverfahren sind solche Zeitverluste nicht akzeptabel und müssen auf ein Minimum reduziert werden. At this stage, it appeared necessary Detecting the presence and position of the Make sheet stack on the pallet. Is located no bow on the pallet, namely the one above described transmission process of the sheets avoided and instead the palette will be changed, and if the Sheet pile is poorly positioned on the pallet when for example, it is too close to the edge of the pallet where the bridge will rest, or at an angle aligned, it can obstruct the movement of the bridge, which will then lead to a blockage of the machine and makes the intervention of an operator required. at an industrial production process are such Time losses are unacceptable and must be kept to a minimum be reduced.
Nichtsdestotrotz wirft eine genaue und sichere Erfassung des Vorhandenseins und/oder der Position eines Bogenstapels auf einer Palette zahlreiche Probleme auf.Nonetheless raises an accurate and safe Detecting the presence and / or position of a Bow pile on a pallet numerous problems on.
Ein erstes Problem besteht darin, daß es vorkommt, daß die Bogenstapel auf Paletten aus unterschiedlichem Material zugeliefert werden. Somit ist es möglich, daß aufgestapelte Bögen auf Paletten aus Metall, zum Beispiel aus Stahl, deren Oberfläche reflektierend ist, oder auf Paletten aus Kunststoff, deren Oberfläche matt ist, empfangen werden. Das Erfassungssystem muß deshalb in der Lage sein, das Vorhandensein von Bögen oder Bogenstapeln unabhängig von der verwendeten Palettenart zu erfassen, wobei jede Palettenart aus diesem Grunde einen unterschiedlichen Reflexionskoeffizienten hat.A first problem is that it happens that the pile of sheets on pallets of different material be delivered. Thus, it is possible that piled up Bows on pallets of metal, for example of steel, whose surface is reflective, or on pallets Plastic whose surface is dull, can be received. The detection system must therefore be able to Presence of sheets or sheet stacks independent of the type of pallet used, each one Palette type for this reason a different one Has reflection coefficient.
Ein zweites Problem besteht darin, daß sich in unterschiedlichen Farben bedruckte Bögen auf die Leistung des verwendeten Erfassungssensorsystems auswirken können: da die verschiedenen Farben ein unterschiedliches Reflexionsverhalten haben, ist es möglich, daß das Erfassungssystem das Vorhandensein von Bögen auf einer gegebenen Palette nicht erfassen kann.A second problem is that in different colors printed sheets on the performance of the acquisition sensor system used: as the different colors a different Reflection behavior, it is possible that the Detection system the presence of bows on one can not capture the given pallet.
Schließlich werden auf dem Gebiet von Wertpapieren oft Hologramme als Sicherheitselement eingesetzt. Ein Hologramm scheint sich jedoch ebenfalls auf die Leistungen des Erfassungssystems auszuwirken. Aufgrund des besonderen Reflexionsverhaltens eines Hologramms kommt es vor, daß der verwendete Sensor das Vorhandensein von Bögen nicht erfaßt, und zwar insbesondere, wenn die Erfassung an der Stelle stattfindet, an der sich das Hologramm befindet. Es ist selbst schwierig, sogar unmöglich, den Fühler auf zufriedenstellende Weise so einzustellen, daß eine eindeutige Erfassung erfolgt.After all, in the field of securities often Holograms used as a security element. A hologram However, it also seems to depend on the services of the Affect collection system. Because of the special Reflection behavior of a hologram, it happens that the used sensor does not detect the presence of arcs, and in particular, if the detection at the site takes place at which the hologram is located. It is even difficult, even impossible, the feeler on satisfactory way to adjust so that a clear detection takes place.
Somit besteht das Ziel der Erfindung in der Entwicklung einer Vorrichtung und eines Verfahrens, die zuverlässig sind und nicht durch externe Parameter, wie zum Beispiel das Material der Paletten, die Farbe des Druckes oder auch das Vorhandensein von Sicherheitselementen, wie zum Beispiel Hologrammen oder dergleichen, auf Aufdrucken, beeinflußt werden.Thus, the object of the invention in the Development of a device and a method which are reliable and not by external parameters, such as Example the material of the pallets, the color of the print or even the presence of security elements, such as for example holograms or the like, on imprints, to be influenced.
Dieses Ziel wird durch die Vorrichtung und das Verfahren, die bzw. das in den Ansprüchen definiert wird, erreicht.This goal is achieved by the device and the Method as defined in the claims reached.
Dadurch, daß die optischen Fühler einen bezüglich der Oberfläche der Palette geneigten Lichtstrahl abgeben und über eine gewisse Strecke verschoben werden, können die durch das Material der Paletten und die beim Druck verwendeten Farben erzeugten Probleme vermieden werden.The fact that the optical sensor with respect to the Surface of the pallet tilted light beam and release can be moved over a certain distance, the through the material of the pallets and those during printing colors used are avoided.
Die Erfindung weist zahlreiche Vorteile auf und insbesondere kann angeführt werden, daß die Vorrichtung leicht hergestellt werden kann und ihre Verwendung zuverlässig ist.The invention has numerous advantages and In particular, it can be stated that the device can be easily produced and their use is reliable.
Die Erfindung wird durch die Beschreibung einer
Ausführungsform davon und der sich darauf beziehenden
Figuren besser verständlich.
Die Vorrichtung wird zunächst unter Bezug auf Figur 1
beschrieben.
In dieser Figur wird ein Bogenstapel 1 auf einer
Palette 2 dargestellt, wobei die Palette 2 auf einem
Ausrichttisch 3 angeordnet ist. Über dem Stapel 1 ist ein
Rahmen 4 vorgesehen, der über dem Stapel absinken und
wieder hochfahren kann. Dieser Rahmen 4 stützt insbesondere
ein Greifersystem 5, das die Paletten bewegen kann, und ein
Erfassungssystem. Das Erfassungssystem umfaßt zwei optische
Fühler 7 und 8, die an den Stützen 9 und 10 befestigt sind.
Die Stützen 9 und 10 sind wiederum mittels
Druckluftzylindern 11 und 12 (siehe Figur 3), die eine
Bewegung der optischen Fühler 7 und 8 zwischen einer
Ausgangsstellung und einer Endstellung gestatten, an dem
Rahmen 4 befestigt. Diese Endstellung wird in Figur 3 durch
die optischen Fühler 7' und 8' schematisch dargestellt. Der
Abstand zwischen der Ausgangsstellung und der Endstellung
kann durch bewegliche Anschläge eingestellt werden. Somit
kann das System unterschiedlichen Hologrammgrößen angepaßt
werden. Die optischen Fühler 7 und 8 geben jeweils einen
Lichtstrahl 13 und 14 ab, dessen Reflexion auf der Palette
2 für die Erfassung verwendet wird. Die Fühler 7 und 8
geben jeweils einen Lichtstrahl 13, 14 ab, der bezüglich
der Oberfläche der Bögen des Stapels 1, das heißt der
Palette 2, nicht senkrecht verläuft, sondern bezüglich der
Oberfläche des Stapels vorzugsweise um 40° abgewinkelt ist,
um nicht von den verschiedenen Reflexionskoeffizienten der
Paletten, oder der Farbe der Drucke auf dem Papier,
beeinträchtigt zu werden.The device will first be described with reference to FIG.
In this figure, a
In Figur 2 werden insbesondere der Sensor 7 mit seinem
Strahl 13 in der Ausgangsstellung und der Sensor 8' mit
seinem Strahl 14' in der Endstellung dargestellt. In Figur
2 ist des weiteren ein Steg 15 zu sehen, der um die Achse
16 schwenkt, um seine Positionierung an der Palette 2 und
die Übertragung des Bogenstapels 1 zum Zuführtisch 17 der
Maschine zu gestatten.In Figure 2, in particular, the
In der in Figur 2 dargestellten Situation ist der
Bogenstapel 1 auf der Palette 2 nach rechts, das heißt in
Richtung des Stegs 15, versetzt, und dieser kann nicht
ordnungsgemäß abgesenkt werden. Die Erfassung erfolgt auf
folgende Weise: Die Fühler 7 und 8 sind in ihrer
Ausgangsstellung auf den Rand der Palette 2 ausgerichtet.
Die Fühler werden eingeschaltet, damit sie ihre jeweiligen
Strahlen 13 und 14 abgeben, dann werden sie mittels der
Zylinder 11 und 12 seitlich verschoben, so daß sie auf
ausgerichtete Weise in der Endstellung ankommen, die in
Figur 2 durch den Fühler 8' symbolisch dargestellt wird.
Bei Erfassung des Vorhandenseins des Stapels 1 während der
Verschiebung der Fühler zwischen zwei Bezugsstellungen kann
leicht festgestellt werden, ob sich der Bogenstapel 1 in
einer akzeptablen Position befindet oder ob er sich zu nahe
am Rand der Palette 2 befindet.In the situation shown in Figure 2 is the
Genauso wie erfaßt wird, ob der Bogenstapel 1 auf der
Palette verschoben ist, ist es mit der vorliegenden
Erfindung auch möglich festzustellen, ob ein oder mehrere
Bögen des Stapels 1 überstehen und die Positionierung des
Stegs 15 möglicherweise behindern können.Just as it is detected whether the
Natürlich ist es erforderlich, die beschriebenen
Vorrichtungen Lagesensoren, insbesondere für die
Druckluftzylinder 11 und 12, und einer Zentraleinheit zur
elektronischen Verwaltung zuzuordnen, die eine Analyse der
von den optischen Fühlern empfangenen Daten, die Verfolgung
ihrer Bewegung zwischen ihren Bezugsstellungen (der
Ausgangs- und der Endstellung) und die Erzeugung eines
geeigneten Steuersignals in Abhängigkeit von der erfolgten
Erfassung, beispielsweise eines Fehlersignals, wenn der
Stapel 1 schlecht positioniert ist, eines Steuersignals für
die Folge des Prozesses (zum Beispiel Absenken des Stegs
15), wenn sich der Stapel 1 in einer akzeptablen Position
befindet, gestattet. Diese Liste von Steuersignalen ist
natürlich nicht erschöpfend und hängt von der betrachteten
Vorrichtung ab. Man könnte zum Beispiel des weiteren das
Greifersystem 5 zur Korrektur der Position des Stapels 1
verwenden, wenn er sich zu nahe am Rand der Palette 2
befindet. Dazu könnten die von den optischen Fühlern
erzeugten Signale zur Berechnung der zur Korrektur
notwendigen Verschiebung verwendet werden, und die Fühler
können danach die durchgeführte Korrektur bestätigen.Of course it is necessary to have the described
Devices position sensors, especially for the
Verschiedene Arten von Vorrichtungen können Endanschlägen zugeordnet sein, um das Ankommen der Sensoren zu erfassen, wie zum Beispiel Näherungssensoren oder dergleichen.Different types of devices can End stops can be assigned to the arrival of the sensors to capture, such as proximity sensors or like.
Das erfindungsgemäße Verfahren wird in dem Blockdiagramm nach Figur 4 dargestellt und umfaßt die folgenden Schritte:
- Einschalten der Fühler,
- Verschieben der Fühler über eine vorbestimmte Strecke,
- kontinuierliches Analysieren des durch Reflexion abgegebenen Lichtsignals zur Erfassung des Vorhandenseins von Bögen,
- Anhalten der Fühler am Ende der Bahn,
- Abgeben eines geeigneten Signals in Abhängigkeit des Ergebnisses der Erfassung,
- Ausschalten der Fühler und Zurückführen der Fühler in ihre Ausgangsstellung.
- Switching on the sensors,
- Moving the sensor over a predetermined distance,
- continuously analyzing the light signal emitted by reflection to detect the presence of arcs,
- Stopping the sensors at the end of the track,
- Outputting a suitable signal depending on the result of the detection,
- Switch off the sensors and return the sensors to their original position.
Vorzugsweise beträgt die Neigung der Lichtstrahlen bezüglich der Oberfläche der Bögen 40°. Selbstverständlich sind geringe Abweichungen von diesem Wert möglich.Preferably, the inclination of the light rays with respect to the surface of the arches 40 °. Of course slight deviations from this value are possible.
Des weiteren beinhaltet das beschriebene Beispiel zwei Fühler, damit ebenfalls die Erfassung eines Bogenstapels gestattet wird, der auf der Palette schräg ausgerichtet ist.Furthermore, the described example includes two Feeler, thus also the detection of a sheet pile allowed, which is obliquely aligned on the pallet is.
Weiterhin hängt die Länge der Bahn, über die die Fühler verschoben werden, von den sich auf den Bögen befindenden Aufdrucken ab. Insbesondere, wie oben zu sehen, ist es erforderlich, wenn die Aufdrucke ein Hologramm enthalten und wenn der Lichtstrahl auf das Hologramm auftrifft, eine Bahn zu durchlaufen, deren Abmessung in Verschiebungsrichtung größer ist als die des Hologramms, um daran vorbeizufahren und die Erfassung über einen Teil des Bogens durchzuführen, der kein Hologramm enthält. Diese Bahn könnte somit kürzer sein, wenn die Bögen kein Hologramm enthalten, und somit könnte bei diesem Schritt Zeit eingespart werden. Furthermore, the length of the track, over which the Feeler are moved from oneself on the arches located imprints from. In particular, as seen above, It is necessary if the imprints a hologram included and when the light beam on the hologram impinges to go through a web whose dimension in Displacement direction is greater than that of the hologram to stop by and capture the part of the Perform bow that contains no hologram. These Track could thus be shorter if the bows no Hologram included, and thus could at this step Time to be saved.
Natürlich sind im beanspruchten Schutzbereich auch andere Modifikationen möglich.Of course, in the claimed protection area as well other modifications possible.
Claims (12)
- A device for sensing the presence of paper sheets (1), in particular sheets of securities or banknotes, on a pallet (2), characterized in that it has at least one optical sensor (7,8), which emits a light beam (13,14), inclined at an angle in relation to the surface of the pallet (2), and irradiates the surface of the pallet (2) at a point of reflection, means (9,10,11,12) for displacing the point of reflection by a predetermined distance over the surface of the pallet (2) between a start position and an end position, and means for analyzing the light signal generated by reflection for sensing the presence of sheets during the displacement of the point of reflection and for giving a signal depending on the detection.
- The device as claimed in claim 1, characterized in that the angled inclination is approximately 40°.
- The device as claimed in claim 2, characterized in that it comprises two symmetrical sensors (7,8).
- The device as claimed in claim 1, characterized in that the means which allow the point of reflection to be displaced are formed at least by a compressed-air cylinder (11,12) which acts on a support (9,10), on which each sensor (7,8) is fastened, such that the sensor (7,8) is displaced parallel to the surface of the pallet.
- The device as claimed in one of the preceding claims,
characterized in that the displacement takes place over a predetermined distance which is superior to the size of a hologram present on the sheet. - The device as claimed in one of the preceding claims, characterized in that the distance between starting position and end position can be adjusted.
- The device as claimed in one of the preceding claims, characterized in that a gripper system (5) for correcting the position of the pallet depending on the result of the detection.
- The device as claimed in claim 7, characterized in that the correction carried out by the gripper system (5) can be determined by the sensors (7,8).
- A method for sensing a ream of paper, in particular a ream of securities or banknotes, on a pallet by means of at least one optical sensor which emits a light beam onto a point of reflection, the process being characterized by the following steps:switching on the sensor,displacing the point of reflection,analysing the reflected light signal for sensing the presence of sheets during displacement of the point of reflection,stopping the movement of the point of reflection,emitting a suitable signal in dependence on the sensing result,switching off the sensor.
- The method as claimed in claim 9, characterized in that the displacement of the point of reflection takes place by linear displacement of the sensor by a predetermined distance running parallel to the surface of the pallet.
- The method as claimed in claim 9 or 10, characterized in that the predetermined distance is greater than the dimension of a hologram provided on the paper.
- The method as claimed in one of claims 9 to 11, characterized in that it uses two symmetrical sensors.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH151002000 | 2000-01-26 | ||
| CH1512000 | 2000-01-26 | ||
| PCT/CH2001/000052 WO2001023289A2 (en) | 2000-01-26 | 2001-01-24 | Device and method for detecting paper sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1252082A2 EP1252082A2 (en) | 2002-10-30 |
| EP1252082B1 true EP1252082B1 (en) | 2005-07-20 |
Family
ID=4406493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01900364A Expired - Lifetime EP1252082B1 (en) | 2000-01-26 | 2001-01-24 | Device and method for detecting paper sheets |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7049619B2 (en) |
| EP (1) | EP1252082B1 (en) |
| JP (1) | JP2003510233A (en) |
| KR (1) | KR20020080384A (en) |
| CN (1) | CN1396883A (en) |
| AT (1) | ATE299832T1 (en) |
| AU (1) | AU778749B2 (en) |
| CA (1) | CA2397218A1 (en) |
| DE (1) | DE50106782D1 (en) |
| RU (1) | RU2002122760A (en) |
| WO (1) | WO2001023289A2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4520726B2 (en) * | 2003-11-18 | 2010-08-11 | 株式会社東芝 | Image forming apparatus |
| DE102005026200A1 (en) | 2005-06-07 | 2006-12-21 | Pepperl + Fuchs Gmbh | Detection and device for the detection of recording media |
| ES2345445T3 (en) * | 2005-12-19 | 2010-09-23 | Mei, Inc. | DISTRIBUTION UNIT FOR VALUE DOCUMENTS. |
| CN101161576B (en) * | 2006-10-13 | 2010-05-12 | 虹光精密工业（苏州）有限公司 | Reflection type paper detector |
| EP2128056A1 (en) * | 2008-05-28 | 2009-12-02 | KG Schneider-Senator Verkaufs-GmbH | Method and device for handling a stack of sheets or a section of the stack |
| US20100039510A1 (en) * | 2008-08-13 | 2010-02-18 | Apollo Systems, Llc | Method and DEVICE for PRINT INSPECTION |
| US8118390B2 (en) * | 2008-12-11 | 2012-02-21 | Eastman Kodak Company | Media identification system with moving optoelectronic device |
| US7980553B2 (en) * | 2008-12-11 | 2011-07-19 | Eastman Kodak Company | Media measurement with sensor array |
| US8534968B2 (en) * | 2009-06-05 | 2013-09-17 | Georgia-Pacific Consumer Products Lp | Railcar distribution system and method for shipping product |
| US8572935B2 (en) * | 2009-06-05 | 2013-11-05 | Georgia-Pacific Consumer Products Lp | Assemblage of and method of assembling reams of paper on a pallet |
| US9290316B2 (en) * | 2009-07-02 | 2016-03-22 | Georgia-Pacific Consumer Products Lp | Assemblage of containers |
| CN106219276A (en) * | 2016-08-05 | 2016-12-14 | 广东新宏泽包装股份有限公司 | Automatically tractor feeder and the detection method of paper is printed in detection |
| WO2018194682A1 (en) | 2017-04-21 | 2018-10-25 | Hewlett-Packard Development Company, L.P. | Sensors calibration |
| US10011453B1 (en) * | 2017-08-24 | 2018-07-03 | Xerox Corporation | Closed-loop stacker control using stack topography to avoid jams |
| JP7064983B2 (en) * | 2018-07-03 | 2022-05-11 | シャープ株式会社 | Paper feed device and image forming device equipped with this |
| CN111845123A (en) * | 2020-07-24 | 2020-10-30 | 杭州可天信息科技有限公司 | Printer paper crease-resistance alarm mechanism |
| CN111845124B (en) * | 2020-07-24 | 2021-11-30 | 恒科科技产业有限公司 | Printer paper jam prevention paper inclination alarm mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815480B2 (en) * | 1975-08-19 | 1983-03-25 | 松下電器産業株式会社 | gallium gallium |
| JPS58193849A (en) * | 1982-05-08 | 1983-11-11 | Fuji Xerox Co Ltd | Form detection device |
| JPS5943455A (en) * | 1982-09-03 | 1984-03-10 | Canon Inc | Magnetic disk controller |
| JPS61145042A (en) * | 1984-12-19 | 1986-07-02 | Komori Printing Mach Co Ltd | Paper piling position control device for leaf printing machine |
| US4681864A (en) * | 1985-07-15 | 1987-07-21 | W. R. Grace & Co. | Cracking catalyst |
| EP0289185B1 (en) * | 1987-04-30 | 1993-11-10 | Molex Incorporated | Optic sensing assembly |
| JP2922585B2 (en) * | 1990-06-01 | 1999-07-26 | 株式会社リコー | Sheet size detection device |
| CH686201A5 (en) * | 1993-03-31 | 1996-01-31 | Baumer Electric Ag | Optical contactless edge detection of paper |
| FR2704642B1 (en) * | 1993-04-27 | 1995-07-13 | Centre Tech Cuir Chaussure | DEVICE FOR DETECTING THE EDGES OF OBJECTS OF LOW THICKNESS, AND ITS APPLICATION TO AN APPARATUS FOR GRIPPING SUCH OBJECTS. |
| JP3849987B2 (en) * | 1994-12-26 | 2006-11-22 | サンデン株式会社 | Optical detector of paper sheet identification device |
| US5847405A (en) * | 1997-09-04 | 1998-12-08 | Xerox Corporation | Size or position sensing of intermixed sheets in a sheet stacking tray with sheet edge shadow detection |
| DE19909518A1 (en) * | 1998-03-23 | 1999-10-07 | Heidelberger Druckmasch Ag | Position detection method of stacked flat material, especially paper stack at input of printing machine |
| JPH11314801A (en) * | 1998-04-30 | 1999-11-16 | Canon Aptex Inc | Sheet supplying device and image forming device provided with sheet supplying device |
-
2001
- 2001-01-24 DE DE50106782T patent/DE50106782D1/en not_active Expired - Lifetime
- 2001-01-24 WO PCT/CH2001/000052 patent/WO2001023289A2/en active IP Right Grant
- 2001-01-24 US US10/181,237 patent/US7049619B2/en not_active Expired - Fee Related
- 2001-01-24 JP JP2001526452A patent/JP2003510233A/en active Pending
- 2001-01-24 EP EP01900364A patent/EP1252082B1/en not_active Expired - Lifetime
- 2001-01-24 KR KR1020027009432A patent/KR20020080384A/en not_active Application Discontinuation
- 2001-01-24 RU RU2002122760/12A patent/RU2002122760A/en not_active Application Discontinuation
- 2001-01-24 AU AU24980/01A patent/AU778749B2/en not_active Ceased
- 2001-01-24 AT AT01900364T patent/ATE299832T1/en not_active IP Right Cessation
- 2001-01-24 CN CN01804179A patent/CN1396883A/en active Pending
- 2001-01-24 CA CA002397218A patent/CA2397218A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20050224731A1 (en) | 2005-10-13 |
| AU778749B2 (en) | 2004-12-16 |
| JP2003510233A (en) | 2003-03-18 |
| WO2001023289A3 (en) | 2001-10-04 |
| AU2498001A (en) | 2001-04-30 |
| ATE299832T1 (en) | 2005-08-15 |
| DE50106782D1 (en) | 2005-08-25 |
| RU2002122760A (en) | 2004-04-10 |
| KR20020080384A (en) | 2002-10-23 |
| CN1396883A (en) | 2003-02-12 |
| EP1252082A2 (en) | 2002-10-30 |
| CA2397218A1 (en) | 2001-04-05 |
| WO2001023289A2 (en) | 2001-04-05 |
| US7049619B2 (en) | 2006-05-23 |
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