EP1300354B1 - Device for detecting the position of an edge of a processed material - Google Patents

Device for detecting the position of an edge of a processed material Download PDF

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Publication number
EP1300354B1
EP1300354B1 EP02020909A EP02020909A EP1300354B1 EP 1300354 B1 EP1300354 B1 EP 1300354B1 EP 02020909 A EP02020909 A EP 02020909A EP 02020909 A EP02020909 A EP 02020909A EP 1300354 B1 EP1300354 B1 EP 1300354B1
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EP
European Patent Office
Prior art keywords
ccd
lines
line
edge
row
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP02020909A
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German (de)
French (fr)
Other versions
EP1300354A3 (en
EP1300354A2 (en
Inventor
Arndt Jentzsch
Jörg Seefeld
Gerald Quapil
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication of EP1300354A3 publication Critical patent/EP1300354A3/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
    • B65H11/00—Feed tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of web
    • B65H23/0216—Sensing transverse register of web with an element utilising photoelectric effect
    • 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
    • B65H7/06—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 responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/10—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 responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect side register
    • 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
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • 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
    • 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
    • B65H2553/416—Array arrangement, i.e. row of emitters 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
    • B65H2553/00—Sensing or detecting means
    • B65H2553/80—Arangement of the sensing means
    • B65H2553/82—Arangement of the sensing means with regard to the direction of transport of the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/50—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves
    • B65H2557/512—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves infrared
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges

Definitions

  • the invention relates to a device for detecting the position of an edge of a processed material, which is fed to a printing press, with an opto-electrical measuring device designed as a reflex line, which consists of a lighting device and a receiver arranged at least two successive arranged CCD lines.
  • the reflex line consists of a lighting device and a receiver, which is composed of individual, one behind the other, formed as a functional units CCD lines.
  • the disadvantage is that in the areas between each two adjacent CCD lines imaging edge is not detected by the CCD lines. This means that such a reflex line is only limitedly suitable for detecting the format spectrum occurring within a format difference range. In addition, it is disadvantageous that, due to the length of the reflex line extending over the entire format difference range and consisting of series-connected CCD lines, long evaluation times result, which adversely affect the effectiveness of the device.
  • JP 2000241125 A describes a device for measuring flat objects, which is associated with a U-shaped frame.
  • the illumination device and in the other leg the photographic detection device is arranged, which consists of two spaced measuring lines.
  • the measurement lines are composed of spaced-apart elements, wherein the elements of one row are arranged in gap to the elements of the other row. Disadvantages are the high cost and the poor access to the processed material.
  • the object of the invention is to design a known reflex line such that it can detect edges of all formats occurring within a format difference range without restrictions and can be realized with little effort.
  • a feed table 1 with 2 processed, which is designed as a sheet 3, is shown.
  • the sheets 3 are transported in the conveying direction 4 on the feed table 1 and with the front edge against front marks 5.
  • a channel 7 is provided in the feed table 1, which extends transversely to the conveying direction 4.
  • the channel 7 extends at least over a format difference range 8 characteristic of the respective printing press.
  • the format difference range 8 is formed from the difference between the maximum and the minimum format of the sheets to be processed, so that the sheets 3 each have a format difference range 8 on both sides. However, it is described only on the basis of the direction of conveyance 4 on the left side format difference range 8, the device.
  • channel 7 designed as a reflex line 9 opto-electrical measuring device is arranged.
  • the reflective line 9 is permanently installed in the channel 7 and likewise extends at least beyond the format difference region 8. This ensures that the edge 6 of the processed material 2 to be supplied within the format difference region 8 can be detected.
  • the channel 7 is closed with a transparent cover strip 10, so that the surface of the feed table 1 and the cover strip 10 form a common plane.
  • the reflective line 9 is in the embodiment of CCD lines 11, 12, 13, 14, 15, which are arranged with gaps one behind the other in a first row and in a second row. But it is also possible to provide another n CCD lines.
  • the first row and the second row are parallel to each other at a distance from each other, with the CCD rows 12, 14 of the second row and the CCD rows 11, 13, 15 of the first row are arranged in a gap to each other.
  • the opposite CCD lines overlap X.
  • Each of the CCD lines 11 to 15 is associated with an LED line 16 as a lighting device. But it is also possible to provide a trained as a functional unit, over the entire length of the reflective line 9 extending lighting device.
  • the CCD lines 11, 12, 13, 14, 15 consist of a plurality of measuring elements arranged side by side in a row.
  • the CCD rows 11 to 15 and their associated LED lines 16 are arranged at a distance from the processed material 2.
  • the rays emitted by the LED lines 16 are reflected in the area covered by the processing material 2 from the lower side of the processed material and detected by the measuring elements of the CCD lines 11 to 15, while in the area that is not covered by the processing material 2, no or Only a small reflection of the rays takes place, so that the position of the edge 6 as a light / dark difference on the CCD lines 11 to 15 images.
  • an actual signal is generated, which is supplied to a processing electronics.
  • the actual signal is compared with a target signal stored in the processing electronics and, in the event of a deviation, an actuating signal is generated which is supplied to the control elements for bringing the edge 6 of the processed material 2 into the desired position.
  • the CCD line 11-15 is determined during a circulation change by the processing electronics, on which the edge 6 is imaged.
  • the entire reflective line 9 is activated and a sheet 3 is transported to the feed table 1 and with the front edge against the front marks 5.
  • the edge 6 is formed on one of the CCD lines 11 - 15, which generates a signal which is detected by the processing electronics and thus determines the CCD line 11-15, which is required for the execution of the order.
  • the edge 6 is formed on the CCD line 11, so that only this, including the associated LED line 16 is driven by the processing electronics. It is of course taken into account that on both sides of the drawn in Figure 1 position of the edge 6, a tolerance range is taken into account, in which the sheets 3 arrive offset. If a format is processed in which the sheet 3 enters the edge 6, for example, in the region of the overlap X formed by the CCD lines 12, 14, the processing units electronics activate the CCD lines 12, 14 including the associated LED lines 16 and thus realized low evaluation times.

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Handling Of Cut Paper (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft eine Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes, das einer Druckmaschine zugeführt wird, mit einer als Reflexzeile ausgebildeten optoelektrischen Messeinrichtung, die aus einer Beleuchtungseinrichtung und einem mindestens zwei hintereinander angeordnete CCD-Zeilen aufweisenden Empfänger besteht.The invention relates to a device for detecting the position of an edge of a processed material, which is fed to a printing press, with an opto-electrical measuring device designed as a reflex line, which consists of a lighting device and a receiver arranged at least two successive arranged CCD lines.

Aus der DE 101 36 870 A1 ist es bekannt, eine optoelektrische Messeinrichtung zum Erfassen der Lage der Kante eines Verarbeitungsgutes als ortsfest angeordnete, sich über den gesamten Formatdifferenzbereich erstreckende Reflexzeile auszubilden. Die Reflexzeile besteht aus einer Beleuchtungseinrichtung und einem Empfänger, der sich aus einzelnen, hintereinander geschalteten, als funktionelle Einheiten ausgebildeten CCD-Zeilen zusammensetzt.From DE 101 36 870 A1 it is known to form an opto-electrical measuring device for detecting the position of the edge of a processed material as a fixedly arranged, extending over the entire format difference range reflex line. The reflex line consists of a lighting device and a receiver, which is composed of individual, one behind the other, formed as a functional units CCD lines.

Nachteilig ist, dass eine in den Bereichen zwischen jeweils zwei benachbarten CCD-Zeilen sich abbildende Kante von den CCD-Zeilen nicht erfasst wird. Das bedeutet, dass eine derartige Reflexzeile nur eingeschränkt für das Erfassen des innerhalb eines Formatdifferenzbereiches anfallenden Formatspektrums geeignet ist.
Außerdem ist es von Nachteil, dass sich aufgrund der Länge der sich über den gesamten Formatdifferenzbereich erstreckenden, aus hintereinander geschalteten CCD-Zeilen bestehenden Reflexzeile, lange Auswertzeiten ergeben, die nachteilig die Effektivität der Einrichtung beeinflussen.The disadvantage is that in the areas between each two adjacent CCD lines imaging edge is not detected by the CCD lines. This means that such a reflex line is only limitedly suitable for detecting the format spectrum occurring within a format difference range.
In addition, it is disadvantageous that, due to the length of the reflex line extending over the entire format difference range and consisting of series-connected CCD lines, long evaluation times result, which adversely affect the effectiveness of the device.

In der JP 2000241125 A ist eine Vorrichtung zum Messen von flachen Objekten beschrieben, die einem u-förmigen Rahmen zugeordnet ist. In dem einen Schenkel ist die Beleuchtungseinrichtung und in dem anderen Schenkel die photographische Erfassungseinrichtung angeordnet, die aus zwei beabstandeten Messzeilen besteht. Die Messzeilen setzen sich aus beabstandet zueinander angeordneten Elementen zusammen, wobei die Elemente der einen Reihe auf Lücke zu den Elementen der anderen Reihe angeordnet sind.
Nachteilig sind der hohe Aufwand sowie der schlechte Zugang zum Verarbeitungsgut.JP 2000241125 A describes a device for measuring flat objects, which is associated with a U-shaped frame. In one leg, the illumination device and in the other leg, the photographic detection device is arranged, which consists of two spaced measuring lines. The measurement lines are composed of spaced-apart elements, wherein the elements of one row are arranged in gap to the elements of the other row.
Disadvantages are the high cost and the poor access to the processed material.

Aufgabe der Erfindung ist, eine bekannte Reflexzeile so auszugestalten, dass diese ohne Einschränkungen Kanten sämtlicher innerhalb eines Formatdifferenzbereiches anfallender Formate erfassen kann und mit einem geringen Aufwand zu realisieren ist.The object of the invention is to design a known reflex line such that it can detect edges of all formats occurring within a format difference range without restrictions and can be realized with little effort.

Erfindungsgemäß wird die Aufgabe durch eine Einrichtung nach den Merkmalen des Anspruchs 1 gelöst.According to the invention the object is achieved by a device according to the features of claim 1.

Durch die erfindungsgemäße Lösung ist es möglich, die Auswertzeiten zu minimieren und eine störungsfreie Erfassung der Lage einer Kante innerhalb eines Formatdifferenzbereiches zu realisieren und den Aufwand zu verringern.By the solution according to the invention, it is possible to minimize the evaluation and to realize a trouble-free detection of the position of an edge within a format difference range and to reduce the effort.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert.In one embodiment, the invention is explained in detail.

In den zugehörigen Zeichnungen zeigen

Fig. 1
eine Draufsicht auf eine schematische Darstellung eines Anlegtischs mit einer die Lage einer Kante erfassenden Einrichtung,
Fig. 2
eine Schnittdarstellung gem. der Linie A-A in Fig. 1.
In the accompanying drawings show
Fig. 1
a top view of a schematic representation of a feed table with the position of an edge detecting device,
Fig. 2
a sectional view acc. the line AA in Fig. 1st

In Figur 1 ist ein Anlegtisch 1 mit Verarbeitungsgut 2, das als Bogen 3 ausgebildet ist, dargestellt. Die Bogen 3 werden in Förderrichtung 4 auf den Anlegtisch 1 und mit der Vorderkante gegen Vordermarken 5 transportiert. Zum Erfassen der Lage einer Kante 6 des Bogens 3 ist im Anlegtisch 1 ein Kanal 7 vorgesehen, der quer zur Förderrichtung 4 verläuft. Der Kanal 7 erstreckt sich mindestens über einen für die jeweilige Druckmaschine charakteristischen Formatdifferenzbereich 8. Der Formatdifferenzbereich 8 wird gebildet aus der Differenz zwischen dem maximalen und dem minimalen Format der zur Verarbeitung gelangenden Bogen, so dass sich beidseitig der Bogen 3 jeweils ein Formatdifferenzbereich 8 ergibt. Es wird jedoch nur anhand des in Förderrichtung 4 auf der linken Seite gelegenen Formatdifferenzbereichs 8 die Einrichtung beschrieben.
Im Kanal 7 ist eine als Reflexzeile 9 ausgebildete optoelektrische Messeinrichtung angeordnet. Die Reflexzeile 9 ist fest im Kanal 7 installiert und erstreckt sich ebenfalls mindestens über den Formatdifferenzbereich 8. Damit wird sichergestellt, dass die Kante 6 des innerhalb des Formatdifferenzbereichs 8 zugeführten Verarbeitungsgutes 2 erfasst werden kann.
Der Kanal 7 ist mit einem durchsichtigen Abdeckstreifen 10 verschlossen, so dass die Oberfläche des Anlegtischs 1 und des Abdeckstreifens 10 eine gemeinsame Ebene bilden.
Die Reflexzeile 9 besteht im Ausführungsbeispiel aus CCD-Zeilen 11, 12, 13, 14, 15, die mit Lücken hintereinander in einer ersten Reihe und in einer zweiten Reihe angeordnet sind. Es ist aber auch möglich, weitere n CCD-Zeilen vorzusehen.
Die erste Reihe und die zweite Reihe verlaufen parallel in einem Abstand zueinander, wobei die CCD-Zeilen 12, 14 der zweiten Reihe und die CCD-Zeilen 11, 13, 15 der ersten Reihe auf Lücke zueinander angeordnet sind. Dabei bilden die sich gegenüberliegenden CCD-Zeilen Überschneidungen X.
Jeder der CCD-Zeilen 11 bis 15 ist eine LED-Zeile 16 als Beleuchtungseinrichtung zugeordnet. Es ist aber auch möglich, eine als funktionelle Einheit ausgebildete, sich über die gesamte Länge der Reflexzeile 9 erstreckende Beleuchtungseinrichtung vorzusehen.In Figure 1, a feed table 1 with 2 processed, which is designed as a sheet 3, is shown. The sheets 3 are transported in the conveying direction 4 on the feed table 1 and with the front edge against front marks 5. For detecting the position of an edge 6 of the sheet 3, a channel 7 is provided in the feed table 1, which extends transversely to the conveying direction 4. The channel 7 extends at least over a format difference range 8 characteristic of the respective printing press. The format difference range 8 is formed from the difference between the maximum and the minimum format of the sheets to be processed, so that the sheets 3 each have a format difference range 8 on both sides. However, it is described only on the basis of the direction of conveyance 4 on the left side format difference range 8, the device.
In channel 7 designed as a reflex line 9 opto-electrical measuring device is arranged. The reflective line 9 is permanently installed in the channel 7 and likewise extends at least beyond the format difference region 8. This ensures that the edge 6 of the processed material 2 to be supplied within the format difference region 8 can be detected.
The channel 7 is closed with a transparent cover strip 10, so that the surface of the feed table 1 and the cover strip 10 form a common plane.
The reflective line 9 is in the embodiment of CCD lines 11, 12, 13, 14, 15, which are arranged with gaps one behind the other in a first row and in a second row. But it is also possible to provide another n CCD lines.
The first row and the second row are parallel to each other at a distance from each other, with the CCD rows 12, 14 of the second row and the CCD rows 11, 13, 15 of the first row are arranged in a gap to each other. The opposite CCD lines overlap X.
Each of the CCD lines 11 to 15 is associated with an LED line 16 as a lighting device. But it is also possible to provide a trained as a functional unit, over the entire length of the reflective line 9 extending lighting device.

Die CCD-Zeilen 11, 12, 13, 14, 15 bestehen aus einer Vielzahl von in einer Reihe nebeneinander angeordneten Messelementen.
Die CCD-Zeilen 11 bis 15 und die ihnen zugeordneten LED-Zeilen 16 sind in einem Abstand zum Verarbeitungsgut 2 angeordnet. Die von den LED-Zeilen 16 ausgesendeten Strahlen werden im vom Verarbeitungsgut 2 abgedeckten Bereich von der Unterseite des Verarbeitungsgutes reflektiert und von den Messelementen der CCD-Zeilen 11 bis 15 erfasst, während in dem Bereich, der nicht vom Verarbeitungsgut 2 abgedeckt ist, keine oder nur eine geringe Reflexion der Strahlen erfolgt, so dass sich die Lage der Kante 6 als Hell/Dunkelunterschied auf den CCD-Zeilen 11 bis 15 abbildet. Durch die jeweilige CCD-Zeile 11 bis 15 wird ein Istsignal generiert, welches einer Verarbeitungselektronik zugeführt wird. In der Verarbeitungselektronik wird das Istsignal mit einem in der Verarbeitungselektronik abgelegten Sollsignal verglichen und bei einer Abweichung ein Stellsignal generiert, das Stellelementen zum Verbringen der Kante 6 des Verarbeitungsgutes 2 in die Sollposition zugeführt wird. Um die Auswertzeiten der Reflexzeile 9 zu verkürzen, wird bei einem Auflagewechsel durch die Verarbeitungselektronik die CCD-Zeile 11-15 bestimmt, auf der sich die Kante 6 abbildet. Dazu wird die gesamte Reflexzeile 9 aktiviert und ein Bogen 3 auf den Anlegtisch 1 und mit der Vorderkante gegen die Vordermarken 5 transportiert. Dabei bildet sich die Kante 6 auf einer der CCD-Zeilen 11 - 15 ab, die ein Signal generiert, welches von der Verarbeitungselektronik erfasst und damit die CCD-Zeile 11-15 festlegt, welche für die Abarbeitung des Auftrages erforderlich ist. Im Ausführungsbeispiel gem. Fig. 1 bildet sich die Kante 6 auf der CCD-Zeile 11 ab, so dass lediglich diese einschließlich der zugeordneten LED-Zeile 16 von der Verarbeitungselektronik angesteuert wird. Dabei wird natürlich berücksichtigt, dass beidseitig der in der Figur 1 eingezeichneten Lage der Kante 6 ein Toleranzbereich zu berücksichtigen ist, in dem die Bogen 3 versetzt einlaufen.
Wird ein Format verarbeitet, bei dem die Bogen 3 mit der Kante 6 z.B. im Bereich der von den CCD-Zeilen 12, 14 gebildeten Überschneidung X einläuft, werden durch die Verarbeitungselektronik die CCD-Zeilen 12, 14 einschließlich der zugehörigen LED-Zeilen 16 aktiviert und damit geringe Auswertzeiten realisiert.
Um zu sichern, dass bei der Verarbeitung jeden Materials, d.h. unabhängig von der Struktur der Oberfläche, der Farbe oder davon, ob das Material durchsichtig oder undurchsichtig ist, eine exakte Erfassung der Lage der Kante 6 durch die CCD-Zeilen 11-15 realisiert werden kann, wird als ein kontrastunterstützendes Mittel farbiges Licht verwendet, das von den LED-Zeilen 16 emittiert wird. Es ist aber auch möglich, in einem Abstand über der Reflexzeile 9 ein kontrastunterstützendes Mittel vorzusehen, das als einer auf einem Trägermaterial aufgebrachten farbigen oder reflektierenden Schicht ausgebildet ist.
Statt die Reflexzeile 9 im Kanal 7 des Anlegtischs anzuordnen, ist es auch möglich, diese an einer in einem Abstand über dem Anlegtisch 1 vorgesehene Traverse anzuordnen und ggf. die Oberfläche des Anlegtischs 1 als kontrastunterstützendes Mittel auszubilden.The CCD lines 11, 12, 13, 14, 15 consist of a plurality of measuring elements arranged side by side in a row.
The CCD rows 11 to 15 and their associated LED lines 16 are arranged at a distance from the processed material 2. The rays emitted by the LED lines 16 are reflected in the area covered by the processing material 2 from the lower side of the processed material and detected by the measuring elements of the CCD lines 11 to 15, while in the area that is not covered by the processing material 2, no or Only a small reflection of the rays takes place, so that the position of the edge 6 as a light / dark difference on the CCD lines 11 to 15 images. Through the respective CCD line 11 to 15, an actual signal is generated, which is supplied to a processing electronics. In the processing electronics, the actual signal is compared with a target signal stored in the processing electronics and, in the event of a deviation, an actuating signal is generated which is supplied to the control elements for bringing the edge 6 of the processed material 2 into the desired position. In order to shorten the evaluation times of the reflective line 9, the CCD line 11-15 is determined during a circulation change by the processing electronics, on which the edge 6 is imaged. For this purpose, the entire reflective line 9 is activated and a sheet 3 is transported to the feed table 1 and with the front edge against the front marks 5. In this case, the edge 6 is formed on one of the CCD lines 11 - 15, which generates a signal which is detected by the processing electronics and thus determines the CCD line 11-15, which is required for the execution of the order. In the embodiment gem. Fig. 1, the edge 6 is formed on the CCD line 11, so that only this, including the associated LED line 16 is driven by the processing electronics. It is of course taken into account that on both sides of the drawn in Figure 1 position of the edge 6, a tolerance range is taken into account, in which the sheets 3 arrive offset.
If a format is processed in which the sheet 3 enters the edge 6, for example, in the region of the overlap X formed by the CCD lines 12, 14, the processing units electronics activate the CCD lines 12, 14 including the associated LED lines 16 and thus realized low evaluation times.
In order to ensure that in the processing of any material, ie regardless of the structure of the surface, the color or whether the material is transparent or opaque, an exact detection of the position of the edge 6 by the CCD lines 11-15 are realized For example, colored light emitted from the LED lines 16 is used as a contrast-assisting means. But it is also possible at a distance above the reflective line 9 a Provide contrast-promoting agent, which is formed as a deposited on a substrate colored or reflective layer.
Instead of arranging the reflective line 9 in the channel 7 of the feed table, it is also possible to arrange this at a provided at a distance above the feed table 1 traverse and possibly form the surface of the feed table 1 as a contrast-promoting agent.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Anlegtischfeed table
22
Verarbeitungsgutprocess material
33
Bogenbow
44
Förderrichtungconveying direction
55
Vordermarkefront lay
66
Kanteedge
77
Kanalchannel
88th
FormatdifferenzbereichFormat difference range
99
Reflexzeilereflex line
1010
Abdeckstreifenflap
1111
CCD-ZeileCCD line
1212
CCD-ZeileCCD line
1313
CCD-ZeileCCD line
1414
CCD-ZeileCCD line
1515
CCD-ZeileCCD line
1616
LED-ZeileLED line
XX
Überschneidungoverlap

Claims (6)

  1. Equipment for detecting the position of an edge of stock (2) to be processed, which is fed to a printing machine, with an optoelectrical measuring device which is constructed as a reflex line (7) and which consists of an illuminating device and a receiver having at least two CCD lines (11 to n+1) arranged one behind the other, wherein the CDD lines (11, 12, 13, 14, 15 to n) are arranged in a first row and in a second row, which extends parallel thereto at a spacing, at gaps one after the other, wherein the gaps between the CCD lines (11, 13, 15, n) of the first row are arranged opposite the CCD lines (12, 14, n±1) of the second row and each of the CCD lines (11 to n+1) are so connected with an electronic processing system that in each instance one of the CCD lines (11 to n+1) is activatable for detection of the position of the edge (6).
  2. Equipment according to claim 1, characterised in that an illuminating device constructed as LED line (16) is associated with each CCD line (11 to n+1).
  3. Equipment according to claim 2, characterised in that the LED line (16) is constructed as an illuminating device extending over the entire length of the reflex line (9).
  4. Equipment according to claim 2, characterised in that each of the LED lines (16) and each of the CCD lines (11 to n+1) is directly coupled with the electronic processing system.
  5. Equipment according to claim 1, characterised in that one of the CCD lines (11, 13, 15, n) of the first row is so arranged with respect to the CCD lines (12, 14, n±1) that this forms an intersection (X).
  6. Equipment according to claim 5, characterised in that in each instance two CCD lines (11 to n+1) forming an intersection (X) are activatable by the electronic processing system.
EP02020909A 2001-10-06 2002-09-19 Device for detecting the position of an edge of a processed material Expired - Fee Related EP1300354B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10149437 2001-10-06
DE10149437A DE10149437A1 (en) 2001-10-06 2001-10-06 Device for detecting the position of an edge of a material to be processed

Publications (3)

Publication Number Publication Date
EP1300354A2 EP1300354A2 (en) 2003-04-09
EP1300354A3 EP1300354A3 (en) 2004-06-23
EP1300354B1 true EP1300354B1 (en) 2007-01-03

Family

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Family Applications (1)

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EP02020909A Expired - Fee Related EP1300354B1 (en) 2001-10-06 2002-09-19 Device for detecting the position of an edge of a processed material

Country Status (2)

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EP (1) EP1300354B1 (en)
DE (2) DE10149437A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005060772B4 (en) * 2005-12-16 2010-02-18 Eastman Kodak Co. Method for detecting an edge of a printing substrate
DE102007009676A1 (en) * 2007-02-28 2008-09-04 Koenig & Bauer Aktiengesellschaft Alignment unit for sheets of paper on feed table of sheet-printing machine, includes optical sensors which can be moved at sheet velocity, to detect front edge of sheet
EP2030924A1 (en) * 2007-08-28 2009-03-04 Müller Martini Holding AG Device for processing printed products
EP2093173B1 (en) * 2008-02-19 2013-06-12 Texmag GmbH Vertriebsgesellschaft Method and device for detecting orientation characteristics on a web of material
DE102008012775A1 (en) 2008-03-05 2009-09-10 Heidelberger Druckmaschinen Ag Method for measuring the position of sheets and for aligning sheets
DE102010027119A1 (en) 2010-07-14 2012-01-19 Heidelberger Druckmaschinen Ag Method and device for positioning sheets

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1307664A (en) * 1971-04-22 1973-02-21 Polygraph Leipzig Photo-electric sheet position detecting devices in sheet processing machines
US4005285A (en) * 1975-10-30 1977-01-25 Xerox Corporation Optical system for extending photosensor array resolution
DE3035550A1 (en) * 1980-09-20 1982-04-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electro-optical photocopier appts. - has line of luminescent diodes used to transform original into charge image on revolving drum
JPS63156474A (en) * 1986-12-20 1988-06-29 Toshiba Corp Reader
JP2902672B2 (en) * 1989-07-18 1999-06-07 沖電気工業株式会社 Paper sheet recognition device
DE50002833D1 (en) * 1999-02-10 2003-08-14 Nexpress Llc Rochester ARRANGEMENT FOR MEASURING THE EDGE POSITION OF A TRANSPARENT OBJECT
JP2000241125A (en) * 1999-02-19 2000-09-08 Nippon Electro Sensari Device Kk Dimension measuring apparatus
DE19926848A1 (en) * 1999-06-13 2000-01-20 Stephan Joerg Edge position sensing of continuously moving fabric line by infrared light uses transverse line of emitters and receivers and deduces edge position from integrated value of reflected light
DE10136870A1 (en) 2001-07-28 2003-02-06 Koenig & Bauer Ag Device for detecting the position of an edge of a material to be processed

Also Published As

Publication number Publication date
DE50209144D1 (en) 2007-02-15
EP1300354A3 (en) 2004-06-23
EP1300354A2 (en) 2003-04-09
DE10149437A1 (en) 2003-04-17

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