EP1279919A1 - Apparatus for detecting the position of the edge of a product - Google Patents

Apparatus for detecting the position of the edge of a product Download PDF

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Publication number
EP1279919A1
EP1279919A1 EP02013028A EP02013028A EP1279919A1 EP 1279919 A1 EP1279919 A1 EP 1279919A1 EP 02013028 A EP02013028 A EP 02013028A EP 02013028 A EP02013028 A EP 02013028A EP 1279919 A1 EP1279919 A1 EP 1279919A1
Authority
EP
European Patent Office
Prior art keywords
contrast
enhancing means
processed
feed table
holder
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.)
Withdrawn
Application number
EP02013028A
Other languages
German (de)
French (fr)
Inventor
Arndt Jentzsch
Michael Koch
Uwe Becker
Jörg Seefeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1279919A1 publication Critical patent/EP1279919A1/en
Withdrawn legal-status Critical Current

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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
    • B65H2511/20—Location in space
    • 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
    • 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 material to be processed, which is fed to a printing press, with an optoelectric measuring device, which consists of an illumination device and a receiver having a plurality of measuring elements arranged next to one another.
  • the material to be processed can be in the form of a sheet or sheet, this being made of different materials, such as Paper, cardboard, sheet metal or foils, etc. can exist.
  • DE 195 32 009 C2 discloses a method and a device for measuring the position of an edge of webs or sheets by means of an optoelectric measuring device.
  • the measuring device consists of an illumination device which is assigned to one side of the webs or sheets, while the receiver is provided on the opposite side. The light coming from the lighting device is detected by the receiver. Depending on the position of the edge to be detected between the lighting device and the receiver, an actual position signal is generated, which is fed to processing electronics and compared there with a target position signal. In the event of deviations, an actuating signal is generated, by means of which actuating means are activated in order to implement the desired position.
  • the lighting device is displaceably arranged on a traverse extending across the width of the feed table and the position of an edge located between the lighting device and the receiver is thus detected.
  • This arrangement has the disadvantage that the assignment of the lighting device / receiver and the adjustment is complex and problematic.
  • the object of the invention is to provide a device for detecting the position of an edge of a material to be processed, which can be implemented with little effort, requires little installation space, offers ideal conditions for the sheet travel and also an accurate detection of the position of a material to be processed which is problematic Edge allows.
  • the object is achieved by the features of claim 1.
  • the solution according to the invention makes it possible, in a simple manner, to exactly detect the position of an edge, regardless of the type of material to be processed.
  • a feed table 1 is shown in FIG.
  • a work piece 2 which is designed as a sheet 3.
  • the material to be processed 2 lies with its leading edge, the conveying direction of the material to be processed is provided with reference number 4, on front marks 5.
  • the position of the edge 6 of the material to be processed 2, which in the exemplary embodiment is designed as a sheet 3, but it is fundamentally possible to also form the material to be processed 2 as a web.
  • a reflex line 10 is provided in a channel 8 which extends transversely to the sheet conveying direction 4 and at least over a format area 9 which is characteristic of the machine.
  • the reflex line 10 is permanently installed in the channel 8 and extends at least over the format area 9. This ensures that the edge 6 of the processing material 2 occurring within the format area 9 can be detected.
  • the channel 8 is closed with a transparent cover strip 7, so that the surface of the feed table 1 and the cover strip 7 form a common plane.
  • the reflex line 10 consists of a lighting device 11 which extends over the entire length and a receiver 12 which is located approximately in the same plane, on an adjacent position 12 which is parallel to the lighting device and also extends over the entire length.
  • the receiver 12 can consist of individual ones in succession switched CCD elements, for example 12.1, 12.2, 12.3 or as a scanner line 13 which extends over at least the entire format width 9. Scanner lines 13 are known per se, for example from flatbed scanners.
  • the CCD elements 12.1, 12.2, 12.3 in turn consist of a large number of measuring elements arranged side by side in a row.
  • the lighting device 11 and the receiver 12 are arranged at a distance a from the material to be processed.
  • the rays emitted by the lighting device 11 are reflected in the area covered by the processing goods 2 from the underside of the processing goods 2 and detected by the measuring elements of the receiver 12, while in the area that is not covered by the processing goods 2 there is no reflection of the rays by the lighting device 11 takes place so that the position of the edge 6 is imaged on the receiver 12, by which an actual signal is generated which is fed to 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 fed to actuating elements for bringing the edge 6 of the material to be processed 2 into the target position.
  • the reflex line 10 with a small measuring range I instead of at least extending over the format range 9.
  • the measuring range I of this shortened reflex line 10.1 is significantly smaller than the format range 9 over which the reflex line 10 extends.
  • this is slidably and fixably mounted in the channel 8.
  • the reflex line 10.1 can thus be set within the channel 8 to the area into which the material to be processed 2 enters.
  • 10.1 can be detected when problematic processing goods 2, ie, those made of transparent or colored material, are processed, it is advantageous to provide a contrast-enhancing means 14.
  • the contrast-enhancing means 14 is arranged in a plane provided at a distance from the feed table 1 and is dimensioned such that the reflex line 10 is at least just covered by a parallel projection of the contrast-enhancing means 14 onto the feed table 1. As shown in FIG. 4, the contrast-enhancing means 14 is received in a holder 15 which is fixed by means not shown.
  • the contrast-enhancing means 14 can be designed, for example, as a reflector or as a reflective film or reflective layer applied to a base. It is also possible to design the contrast-enhancing means 14 in color, preferably red, white, black, yellow, blue or in mixed colors.
  • the various embodiments of the contrast-enhancing means can optionally be positioned in the holder 15.
  • contrast-enhancing means 14 This enables the contrast-enhancing means 14 to be optimally adapted to the processing material 2 to be processed, and the edge 6 is thus precisely detected by the reflex line 10.
  • the shortened reflex line 10.1 shows the shortened reflex line 10.1 with a contrast-enhancing means 14. Since the shortened reflex line 10.1 has a measuring range I that is significantly smaller than the format range 9, the dimensions of the contrast-enhancing means 14 are adapted to the measuring range I and accommodated in a holder 15, which in turn is positioned such that the contrast-enhancing means 14 covers at least the reflex line 10.1 by a parallel projection onto the feed table 1.
  • the holder 15 is mechanically or electrically coupled to the holder 15, so that the assignment of the contrast-enhancing means 14 to the shortened reflex line 10.1 is independent of it Position in channel 8 is retained.
  • a rotating body 16 designed as a multi-surface device is arranged such that it can be rotated and locked on an axis of rotation 17.
  • the different embodiments of the contrast-enhancing means 14 are provided on the lateral surfaces, so that by rotating the rotating body 16 these can be assigned to the processing material 2 to be processed, in order to enable an exact detection of the position of the edge 6.
  • the rotating body 16 can be arranged in a stationary manner and can be assigned to the reflex lines 10, 10.1, extending at least over the format area 9.
  • the rotating body 16 can, however, also only have a length I and be assigned to the shortened reflex line 10.1 and mechanically or electrically coupled to it, so that both are operatively connected regardless of the position of the shortened reflex line 10.1 in the channel 6.
  • the edge 6 of the material to be processed 2 it is possible to detect the edge 6 of the material to be processed 2 either with or without the contrast-enhancing means 14.
  • the rays emitted by the lighting device 11 and reflected by the processed material 2 are detected by the receiver 12, while when the edge 6 is detected by the contrast-enhancing means 14, the rays reflected by the latter are detected by the receiver 12 are recorded.

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

Arrangement for measuring the position of the edge (6) of a medium comprises an optoelectronic measurement system with a light source and a number of adjoining measurement elements with optical receivers. The measurement elements are arranged in a reflection cell (10) within the support table (1) along which the medium being printed is moved. Arranged at a distance above or away from the print medium is a contrast generating device.

Description

Die Erfindung betrifft eine Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes, das einer Druckmaschine zugeführt wird, mit einer optoelektrischen Messeinrichtung, die aus einer Beleuchtungseinrichtung und einem eine Vielzahl nebeneinander angeordneter Messelemente aufweisenden Empfänger besteht.The invention relates to a device for detecting the position of an edge of a material to be processed, which is fed to a printing press, with an optoelectric measuring device, which consists of an illumination device and a receiver having a plurality of measuring elements arranged next to one another.

Um in Druckmaschinen das Verarbeitungsgut lagegenau zuführen zu können, ist es erforderlich, seine Istlage zu erfassen und nachfolgend einer Solllage anzugleichen. Das Verarbeitungsgut kann dabei bahn- oder bogenförmig vorliegen, wobei dieses aus unterschiedlichen Materialien, wie z.B. Papier, Karton, Blech oder Folien usw. bestehen kann.In order to be able to feed the material to be processed precisely in printing machines, it is necessary to record its actual position and then adjust it to a target position. The material to be processed can be in the form of a sheet or sheet, this being made of different materials, such as Paper, cardboard, sheet metal or foils, etc. can exist.

Aus der DE 195 32 009 C2 sind ein Verfahren und eine Vorrichtung zum Messen der Lage einer Kante von Bahnen oder Bogen mittels einer optoelektrischen Messeinrichtung bekannt. Die Messeinrichtung besteht aus einer Beleuchtungseinrichtung, die der einen Seite von den Bahnen oder Bogen zugeordnet ist, während auf der gegenüberliegenden Seite der Empfänger vorgesehen ist. Das von der Beleuchtungseinrichtung ausgehende Licht wird von dem Empfänger erfasst. Entsprechend der Lage der zu detektierenden Kante zwischen der Beleuchtungseinrichtung und dem Empfänger wird ein Istlagensignal generiert, das einer Verarbeitungselektronik zugeführt und dort mit einem Solllagensignal verglichen wird. Bei Abweichungen wird ein Stellsignal erzeugt, durch welches Stellmittel angesteuert werden zur Realisierung der Solllage.DE 195 32 009 C2 discloses a method and a device for measuring the position of an edge of webs or sheets by means of an optoelectric measuring device. The measuring device consists of an illumination device which is assigned to one side of the webs or sheets, while the receiver is provided on the opposite side. The light coming from the lighting device is detected by the receiver. Depending on the position of the edge to be detected between the lighting device and the receiver, an actual position signal is generated, which is fed to processing electronics and compared there with a target position signal. In the event of deviations, an actuating signal is generated, by means of which actuating means are activated in order to implement the desired position.

In der Praxis werden diese optoelektrischen Messeinrichtungen als Kompaktgeräte verwendet, wobei in einem gabelförmigen Grundkörper auf der einen Seite die Beleuchtungseinrichtung und auf der gegenüberliegenden Seite der Empfänger angeordnet ist. Nachteilig ist, dass der gabelförmige Grundkörper innerhalb eines für eine Druckmaschine charakteristischen Formatbereichs verschoben werden muss. Dazu ist es erforderlich, z.B. in bogenverarbeitenden Druckmaschinen im die Bogen führenden Anlegtisch einen den gabelförmigen Grundkörper aufnehmenden Kanal vorzusehen, wodurch wiederum Mittel erforderlich sind, die diesen so abdecken, dass ein störungsfreier Bogenlauf bei der Verarbeitung der unterschiedlichen Bogenformate gesichert ist. Außerdem beansprucht die Messeinrichtung zusätzlichen Bauraum. Es ist auch möglich, die Beleuchtungseinrichtung und den Empfänger separat auszubilden und z.B. den Empfänger in einem sich über den Formatbereich erstreckenden Kanal verschiebbar zu installieren sowie den Kanal mit einem durchsichtigen, mit der Oberfläche des Anlegtischs vergleichenden Material abzudecken.In practice, these optoelectric measuring devices are used as compact devices, the illumination device being arranged in a fork-shaped base body on one side and the receiver on the opposite side. It is disadvantageous that the fork-shaped base body has to be moved within a format range which is characteristic of a printing press. For this purpose, it is necessary, for example in sheet-processing printing machines, to provide a channel which accommodates the fork-shaped base body in the sheet-feeding table, which in turn requires means which cover it in such a way that trouble-free sheet travel is ensured when processing the different sheet formats. In addition, the measuring device takes up additional installation space. It is also possible to design the lighting device and the receiver separately and, for example, to install the receiver displaceably in a channel extending over the format range and to cover the channel with a transparent material that compares with the surface of the feed table.

In einem Abstand über dem Kanal wird die Beleuchtungseinrichtung verschiebbar an einer sich über die Breite des Anlegtischs erstreckenden Traverse angeordnet und so die Lage einer zwischen Beleuchtungseinrichtung und Empfänger befindlichen Kante detektiert. Diese Anordnung hat den Nachteil, dass die Zuordnung Beleuchtungseinrichtung/Empfänger sowie die Justierung aufwändig und problembehaftet ist.At a distance above the channel, the lighting device is displaceably arranged on a traverse extending across the width of the feed table and the position of an edge located between the lighting device and the receiver is thus detected. This arrangement has the disadvantage that the assignment of the lighting device / receiver and the adjustment is complex and problematic.

Aufgabe der Erfindung ist es, eine Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes zu schaffen, die mit einem geringen Aufwand zu realisieren ist, wenig Bauraum beansprucht, dem Bogenlauf ideale Bedingungen bietet und auch bei der Verarbeitung problembehafteten Verarbeitungsgutes eine exakte Erfassung der Lage einer Kante ermöglicht.The object of the invention is to provide a device for detecting the position of an edge of a material to be processed, which can be implemented with little effort, requires little installation space, offers ideal conditions for the sheet travel and also an accurate detection of the position of a material to be processed which is problematic Edge allows.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst.
Durch die erfindungsgemäße Lösung ist es möglich, auf einfache Weise unabhängig von der Art des zur Verarbeitung gelangenden Verarbeitungsgutes exakt die Lage einer Kante zu detektieren.According to the invention the object is achieved by the features of claim 1.
The solution according to the invention makes it possible, in a simple manner, to exactly detect the position of an edge, regardless of the type of material to be processed.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. In den zugehörigen Zeichnungen zeigen

Fig. 1
eine Draufsicht auf eine schematische Darstellung eines Anlegtischs mit einem bogenförmigen Verarbeitungsgut und einer die Lage einer Kante erfassenden Einrichtung,
Fig. 2
eine Ansicht gem. Fig. 1 mit einer anderen Ausführungsform der die Lage der Kante erfassenden Einrichtung,
Fig. 3
eine Schnittdarstellung gemäß der Linie A-A in Fig. 1,
Fig. 4
einen Schnitt B-B gem. Fig. 1 mit einer Hintergrundausblendung
Fig. 5
einen Schnitt C-C gem. Fig. 2 mit einer Hintergrundausblendung
Fig. 6
eine Seitenansicht einer weiteren Möglichkeit einer Hintergrundausblendung
The invention is explained in more detail using an exemplary embodiment. Show in the accompanying drawings
Fig. 1
2 shows a plan view of a schematic illustration of a feed table with an arcuate processing material and a device that detects the position of an edge,
Fig. 2
a view acc. 1 with another embodiment of the device detecting the position of the edge,
Fig. 3
2 shows a sectional illustration along the line AA in FIG. 1,
Fig. 4
a section BB acc. Fig. 1 with a background suppression
Fig. 5
a section CC acc. Fig. 2 with a background suppression
Fig. 6
a side view of another possibility of background suppression

In Figur 1 ist ein Anlegtisch 1 dargestellt. Auf dem Anlegtisch 1 befindet sich ein Verarbeitungsgut 2, das als Bogen 3 ausgebildet ist. Das Verarbeitungsgut 2 liegt mit seiner Vorderkante, die Förderrichtung des Verarbeitungsgutes ist mit dem Bezugszeichen 4 versehen, an Vordermarken 5 an. Vom Verarbeitungsgut 2, das im Ausführungsbeispiel als Bogen 3 ausgebildet ist, wobei es aber grundsätzlich möglich ist, das Verarbeitungsgut 2 auch als Bahn auszubilden, soll die Lage der Kante 6 erfasst werden. Dazu ist in einem Kanal 8, der sich quer zur Bogenförderrichtung 4 und mindestens über einen für die Maschine charakteristischen Formatbereich 9 erstreckt, eine Reflexzeile 10 vorgesehen. Die Reflexzeile 10 ist fest im Kanal 8 installiert und erstreckt sich mindestens über den Formatbereich 9. Damit wird sichergestellt, dass die Kante 6 des innerhalb des Formatbereichs 9 anfallenden Verarbeitungsgutes 2 erfasst werden kann.A feed table 1 is shown in FIG. On the feed table 1 there is a work piece 2, which is designed as a sheet 3. The material to be processed 2 lies with its leading edge, the conveying direction of the material to be processed is provided with reference number 4, on front marks 5. The position of the edge 6 of the material to be processed 2, which in the exemplary embodiment is designed as a sheet 3, but it is fundamentally possible to also form the material to be processed 2 as a web. For this purpose, a reflex line 10 is provided in a channel 8 which extends transversely to the sheet conveying direction 4 and at least over a format area 9 which is characteristic of the machine. The reflex line 10 is permanently installed in the channel 8 and extends at least over the format area 9. This ensures that the edge 6 of the processing material 2 occurring within the format area 9 can be detected.

Der Kanal 8 ist mit einem durchsichtigen Abdeckstreifen 7 verschlossen, so dass die Oberfläche des Anlegtischs 1 und des Abdeckstreifens 7 eine gemeinsame Ebene bilden.
Die Reflexzeile 10 besteht aus einer sich über die gesamte Länge erstreckenden Beleuchtungseinrichtung 11 und einem sich etwa in gleicher Ebene, auf einer benachbarten, zur Beleuchtungseinrichtung parallelen Position befindenden und sich ebenfalls über die gesamte Länge erstreckenden Empfänger 12. Der Empfänger 12 kann aus einzelnen, hintereinander geschalteten CCD-Elementen, z.B. 12.1, 12.2, 12.3 oder als eine sich über mindestens die gesamte Formatbreite 9 erstreckende Scannerzeile 13 ausgebildet sein. Scannerzeilen 13 sind an sich bekannt, z.B. aus Flachbettscannern. Die CCD-Elemente 12.1, 12.2, 12.3 bestehen ihrerseits aus einer Vielzahl von in einer Reihe nebeneinander angeordneten Messelementen. Die Beleuchtungseinrichtung 11 und der Empfänger 12 sind in einem Abstand a zum Verarbeitungsgut angeordnet. Die von der Beleuchtungseinrichtung 11 ausgesendeten Strahlen werden im vom Verarbeitungsgut 2 abgedeckten Bereich von der Unterseite des Verarbeitungsgutes 2 reflektiert und von den Messelementen des Empfängers 12 erfasst, während in dem Bereich, der nicht vom Verarbeitungsgut 2 abgedeckt ist, keine Reflexion der Strahlen der Beleuchtungseinrichtung 11 erfolgt, so dass sich die Lage der Kante 6 auf dem Empfänger 12 abbildet, durch den ein Istsignal generiert wird, 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.The channel 8 is closed with a transparent cover strip 7, so that the surface of the feed table 1 and the cover strip 7 form a common plane.
The reflex line 10 consists of a lighting device 11 which extends over the entire length and a receiver 12 which is located approximately in the same plane, on an adjacent position 12 which is parallel to the lighting device and also extends over the entire length. The receiver 12 can consist of individual ones in succession switched CCD elements, for example 12.1, 12.2, 12.3 or as a scanner line 13 which extends over at least the entire format width 9. Scanner lines 13 are known per se, for example from flatbed scanners. The CCD elements 12.1, 12.2, 12.3 in turn consist of a large number of measuring elements arranged side by side in a row. The lighting device 11 and the receiver 12 are arranged at a distance a from the material to be processed. The rays emitted by the lighting device 11 are reflected in the area covered by the processing goods 2 from the underside of the processing goods 2 and detected by the measuring elements of the receiver 12, while in the area that is not covered by the processing goods 2 there is no reflection of the rays by the lighting device 11 takes place so that the position of the edge 6 is imaged on the receiver 12, by which an actual signal is generated which is fed to 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 fed to actuating elements for bringing the edge 6 of the material to be processed 2 into the target position.

Es ist auch möglich, statt die Reflexzeile 10 sich mindestens über den Formatbereich 9 erstreckend auszubilden, diese mit einem geringen Messbereich I zu versehen. Der Messbereich I dieser gekürzten Reflexzeile 10.1 ist wesentlich kleiner als der Formatbereich 9, über den sich die Reflexzeile 10 erstreckt. Um sicher zu stellen, dass die Kante 6 des innerhalb des Formatbereichs 9 zur Verarbeitung gelangenden Materials von der Reflexzeile 10.1 erfasst wird, ist diese verschiebbar und fixierbar im Kanal 8 gelagert. Die Reflexzeile 10.1 kann so innerhalb des Kanals 8 auf den Bereich eingestellt werden, in den das Verarbeitungsgut 2 einläuft.
Um zu sichern, dass die Lage der Kante 6 auch dann exakt von den Reflexzeilen 10; 10.1 erfasst werden kann, wenn problembehaftetes Verarbeitungsgut 2, d.h., solches aus durchsichtigem oder farbigem Material, zur Verarbeitung gelangt, ist es von Vorteil, ein kontrastunterstützendes Mittel 14 vorzusehen. Das kontrastunterstützende Mittel 14 ist in einer in einem Abstand zum Anlegtisch 1 vorgesehenen Ebene angeordnet und so dimensioniert, dass die Reflexzeile 10 durch eine Parallelprojektion des kontrastunterstützenden Mittels 14 auf den Anlegtisch 1 mindestens gerade abgedeckt wird. Das kontrastunterstützenden Mittel 14 ist, wie in Fig. 4 gezeigt, in einem Halter 15 aufgenommen, der durch nicht dargestellte Mittel fixiert ist. Das kontrastunterstützende Mittel 14 kann z.B. als Reflektor oder als eine auf eine Unterlage aufgebrachte Reflexionsfolie bzw. Reflexionsschicht ausgebildet sein. Es ist auch möglich, das kontrastunterstützende Mittel 14 farbig, vorzugsweise rot, weiß, schwarz, gelb, blau oder in Mischfarben aus diesen auszubilden. Die verschiedenen Ausführungsformen des kontrastunterstützenden Mittels können wahlweise im Halter 15 positioniert werden. Damit wird eine optimale Anpassung des kontrastunterstützenden Mittels 14 an das zur Verarbeitung gelangende Verarbeitungsgut 2 ermöglicht und so die Kante 6 exakt von der Reflexzeile 10 erfasst. So hat es sich als vorteilhaft erwiesen, bei der Verarbeitung von Klarsichtfolie das kontrastunterstützende Mittel 14 schwarz oder rot auszubilden, während bei der Verarbeitung von schwarzem Verarbeitungsgut 2 es vorteilhaft ist, wenn das kontrastunterstützende Mittel 14 weiß ausgebildet oder mit einer Reflexionsschicht versehen ist.It is also possible to provide the reflex line 10 with a small measuring range I instead of at least extending over the format range 9. The measuring range I of this shortened reflex line 10.1 is significantly smaller than the format range 9 over which the reflex line 10 extends. In order to ensure that the edge 6 of the material to be processed within the format area 9 is captured by the reflex line 10.1, this is slidably and fixably mounted in the channel 8. The reflex line 10.1 can thus be set within the channel 8 to the area into which the material to be processed 2 enters.
To ensure that the position of the edge 6 is then exactly from the reflex lines 10; 10.1 can be detected when problematic processing goods 2, ie, those made of transparent or colored material, are processed, it is advantageous to provide a contrast-enhancing means 14. The contrast-enhancing means 14 is arranged in a plane provided at a distance from the feed table 1 and is dimensioned such that the reflex line 10 is at least just covered by a parallel projection of the contrast-enhancing means 14 onto the feed table 1. As shown in FIG. 4, the contrast-enhancing means 14 is received in a holder 15 which is fixed by means not shown. The contrast-enhancing means 14 can be designed, for example, as a reflector or as a reflective film or reflective layer applied to a base. It is also possible to design the contrast-enhancing means 14 in color, preferably red, white, black, yellow, blue or in mixed colors. The various embodiments of the contrast-enhancing means can optionally be positioned in the holder 15. This enables the contrast-enhancing means 14 to be optimally adapted to the processing material 2 to be processed, and the edge 6 is thus precisely detected by the reflex line 10. Thus, it has proven to be advantageous to design the contrast-enhancing means 14 black or red when processing transparent film, while when processing black workpieces 2 it is advantageous if the contrast-enhancing means 14 is white or provided with a reflection layer.

In Fig. 5 ist die verkürzte Reflexzeile 10.1 mit einem kontrastunterstützenden Mittel 14 dargestellt. Da die verkürzte Reflexzeile 10.1 einen Messbereich I aufweist, der wesentlich kleiner ist als der Formatbereich 9, ist das kontrastunterstützende Mittel 14 in seinen Abmessungen entsprechend dem Messbereich I angepasst und in einem Halter 15 aufgenommen, der seinerseits so positioniert ist, dass das kontrastunterstützende Mittel 14 durch eine Parallelprojektion auf den Anlegtisch 1 mindestens die Reflexzeile 10.1 abdeckt.5 shows the shortened reflex line 10.1 with a contrast-enhancing means 14. Since the shortened reflex line 10.1 has a measuring range I that is significantly smaller than the format range 9, the dimensions of the contrast-enhancing means 14 are adapted to the measuring range I and accommodated in a holder 15, which in turn is positioned such that the contrast-enhancing means 14 covers at least the reflex line 10.1 by a parallel projection onto the feed table 1.

Da die Reflexzeile 10.1 zur Anpassung an das Format des zur Verarbeitung gelangenden Verarbeitungsgutes 2 im Kanal 8 verschiebbar gelagert ist, ist der Halter 15 mechanisch oder elektrisch mit dem Halter 15 gekoppelt, so dass die Zuordnung des kontrastunterstützenden Mittels 14 zur gekürzten Reflexzeile 10.1 unabhängig von ihrer Position im Kanal 8 erhalten bleibt.Since the reflex line 10.1 is slidably mounted in the channel 8 to adapt to the format of the processing material 2 to be processed, the holder 15 is mechanically or electrically coupled to the holder 15, so that the assignment of the contrast-enhancing means 14 to the shortened reflex line 10.1 is independent of it Position in channel 8 is retained.

In Fig. 6 ist eine weitere Möglichkeit der Zuordnung des kontrastunterstützenden Mittels 14 zu den Reflexzeilen 10; 10.1 gezeigt. Ein als Mehrflächner ausgebildeter Drehkörper 16 ist auf einer Drehachse 17 dreh- und arretierbar angeordnet. Auf den Mantelflächen sind die unterschiedlichen Ausführungsformen des kontrastunterstützenden Mittels 14 vorgesehen, so dass durch Drehen des Drehkörpers 16 diese dem zur Verarbeitung gelangenden Verarbeitungsgut 2 zugeordnet werden können, um ein exaktes Erfassungen der Lage der Kante 6 zu ermöglichen. Der Drehkörper 16 kann ortsfest angeordnet und sich mindestens über den Formatbereich 9 erstreckend den Reflexzeilen 10, 10.1 zugeordnet sein. Der Drehkörper 16 kann aber auch lediglich mit einer Länge I ausgeführt und der gekürzten Reflexzeile 10.1 zugeordnet sowie mit dieser mechanisch oder elektrisch gekoppelt sein, so dass unabhängig von der Position der gekürzten Reflexzeile 10.1 im Kanal 6 beide in Wirkverbindung stehen.6 shows a further possibility of assigning the contrast-enhancing means 14 to the reflex lines 10; 10.1 shown. A rotating body 16 designed as a multi-surface device is arranged such that it can be rotated and locked on an axis of rotation 17. The different embodiments of the contrast-enhancing means 14 are provided on the lateral surfaces, so that by rotating the rotating body 16 these can be assigned to the processing material 2 to be processed, in order to enable an exact detection of the position of the edge 6. The rotating body 16 can be arranged in a stationary manner and can be assigned to the reflex lines 10, 10.1, extending at least over the format area 9. The rotating body 16 can, however, also only have a length I and be assigned to the shortened reflex line 10.1 and mechanically or electrically coupled to it, so that both are operatively connected regardless of the position of the shortened reflex line 10.1 in the channel 6.

Es ist grundsätzlich möglich, sowohl mit dem oder ohne das kontrastunterstützende Mittel 14 die Kante 6 des Verarbeitungsgutes 2 zu detektieren. Dabei werden bei einer Lagebestimmung der Kante 6 ohne das kontrastunterstützende Mittel 14 die von der Beleuchtungseinrichtung 11 ausgesendeten und vom Verarbeitungsgut 2 reflektierten Strahlen von dem Empfänger 12 erfasst, während beim Detektieren der Kante 6 mit dem kontrastunterstützenden Mittel 14 die von diesem reflektierten Strahlen von dem Empfänger 12 erfasst werden.In principle, it is possible to detect the edge 6 of the material to be processed 2 either with or without the contrast-enhancing means 14. When determining the position of the edge 6 without the contrast-enhancing means 14, the rays emitted by the lighting device 11 and reflected by the processed material 2 are detected by the receiver 12, while when the edge 6 is detected by the contrast-enhancing means 14, the rays reflected by the latter are detected by the receiver 12 are recorded.

Aufstellung der verwendeten BezugszeichenList of the reference numerals used

11
Anlegtischfeed table
22
Verarbeitungsgutprocess material
33
Bogenarc
44
Förderrichtungconveying direction
55
Vordermarkefront lay
66
Kanteedge
77
Abdeckstreifenflap
88th
Kanalchannel
99
Formatbereichformat range
1010
Reflexzeilereflex line
10.110.1
gekürzte Reflexzeileshortened reflex line
1111
Beleuchtungseinrichtunglighting device
1212
Empfängerreceiver
12.112.1
Elementelement
12.212.2
Elementelement
12.312.3
Elementelement
1313
Scannerzeilescanner line
1414
kontrastunterstützendes Mittelcontrast-enhancing agent
1515
Halterholder
1616
Drehkörperrotating body
1717
Drehachseaxis of rotation
aa
Abstanddistance
II
Messbereichmeasuring range

Claims (12)

Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes, das einer Druckmaschine zugeführt wird, mit einer optoelektrischen Messeinrichtung, die aus einer Beleuchtungseinrichtung und einem eine Vielzahl nebeneinander angeordneter Messelemente aufweisenden Empfänger besteht, dadurch gekennzeichnet, dass die optoelektrische Messeinrichtung als eine in einem das Verarbeitungsgut (2) führenden Anlegtisch (1) angeordnete Reflexzeile (10,10.1) ausgebildet ist, der beabstandet zum Verarbeitungsgut (2) ein kontrastunterstützendes Mittel (14) zugeordnet ist.Device for detecting the position of an edge of a material to be processed, which is fed to a printing press, with an optoelectric measuring device which consists of an illumination device and a receiver having a plurality of measuring elements arranged next to one another, characterized in that the optoelectric measuring device as one in a 2) leading line table (1) arranged reflex line (10,10.1) is formed, which is associated with a contrast-supporting means (14) at a distance from the material to be processed (2). Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) als Reflektor oder als auf einen Träger aufgebrachte Reflexionsschicht ausgebildet ist.Device according to claim 1, characterized in that the contrast-enhancing means (14) is designed as a reflector or as a reflection layer applied to a carrier. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) als mit einer Farbschicht versehener Träger ausgebildet ist.Device according to claim 1, characterized in that the contrast-enhancing means (14) is designed as a support provided with a color layer. Einrichtung nach Anspruch 1 und 3 dadurch gekennzeichnet, dass die Träger rot, schwarz, gelb, blau, weiß oder in Mischfarben aus diesen ausgebildet sind.Device according to claim 1 and 3, characterized in that the carriers are formed from these in red, black, yellow, blue, white or in mixed colors. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) in einer Parallelprojektion auf den Anlegtisch (1) mindestens die Reflexzeile (10; 10.1) gerade abdeckt.Device according to claim 1, characterized in that the contrast-enhancing means (14) in a parallel projection onto the feed table (1) just covers at least the reflex line (10; 10.1). Einrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) auswechselbar in einem den Anlegtisch (1) gestellfest zugeordneten Halter (15) angeordnet ist.Device according to claims 1 to 5, characterized in that the contrast-enhancing means (14) is interchangeably arranged in a holder (15) which is fixed to the feed table (1). Einrichtung nach Anspruch 1 und 6, dadurch gekennzeichnet, dass der gestellfeste Halter (15) der im Anlegtisch (1) gestellfest angeordneten Reflexzeile (10) zugeordnet ist.Device according to claims 1 and 6, characterized in that the holder (15) fixed to the frame is assigned to the reflex line (10) arranged fixed to the frame in the feed table (1). Einrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) auswechselbar in einem verschiebbar dem Anlegtisch (1) zugeordneten Halter (15) angeordnet ist.Device according to claims 1 to 5, characterized in that the contrast-enhancing means (14) is interchangeably arranged in a holder (15) slidably associated with the feed table (1). Einrichtung nach Anspruch 1 und 8, dadurch gekennzeichnet, dass der verschiebbare Halter (15) der verschiebbar im Anlegtisch (1) angeordneten Reflexzeile (10.1) zugeordnet ist.Device according to Claims 1 and 8, characterized in that the displaceable holder (15) is assigned to the reflex line (10.1) which is displaceably arranged in the feed table (1). Einrichtung nach Anspruch 1 und 9, dadurch gekennzeichnet, dass der verschiebbare Halter (15) der Verschiebbewegung der Reflexzeile (10.1) durch mechanische oder elektrische Kopplung nachführbar ist.Device according to claim 1 and 9, characterized in that the displaceable holder (15) of the displacement movement of the reflex line (10.1) can be tracked by mechanical or electrical coupling. Einrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das kontrastunterstützende Mittel (14) in einem Drehkörper (16) angeordnet ist zum wahlweisen Zuordnen zu dem zur Verarbeitung gelangenden Verarbeitungsgut (2).Device according to claims 1 to 5, characterized in that the contrast-enhancing means (14) is arranged in a rotating body (16) for optional assignment to the processing goods (2) to be processed. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Drehkörper (16) als Mehrflächner ausgebildet ist.Device according to claim 1, characterized in that the rotating body (16) is designed as a multi-surface.
EP02013028A 2001-07-28 2002-06-13 Apparatus for detecting the position of the edge of a product Withdrawn EP1279919A1 (en)

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DE2001136870 DE10136870A1 (en) 2001-07-28 2001-07-28 Device for detecting the position of an edge of a material to be processed

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7115889B2 (en) 2003-06-05 2006-10-03 Heidelberger Druckmaschinen Ag Device and method for sensing the position of an edge of a product
DE102006046525A1 (en) * 2006-09-29 2008-04-03 Koenig & Bauer Aktiengesellschaft Sheet-positioning device for detecting the position of a side edge of a sheet transported in a sheet-transporting device onto a stacking table uses the front edge of a transported sheet towards measured stacking marks
WO2009140778A1 (en) * 2008-05-21 2009-11-26 Ferag Ag Optical position detection
DE102014201773A1 (en) 2013-01-31 2014-07-31 Koenig & Bauer Aktiengesellschaft Guiding assembly in sheet processing machine for guiding sheet, has guide device that is provided with sheet hold-down which is extended to table top and whose height is always greater than distance between top marks and table top

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149096A1 (en) 2001-10-05 2003-04-17 Koenig & Bauer Ag Device for detecting the position of an edge of a material to be processed
DE10149437A1 (en) 2001-10-06 2003-04-17 Koenig & Bauer Ag Device for detecting the position of an edge of a material to be processed
US7097029B2 (en) 2004-12-23 2006-08-29 Krones Ag. Parcel goods aligning device
DE102006029882B4 (en) * 2006-06-28 2016-06-02 Koenig & Bauer Ag Method for operating the illumination device of a photoelectric receiver
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
DE102012207286A1 (en) 2012-05-02 2013-11-07 Böwe Systec Gmbh METHOD FOR ADJUSTING AT LEAST ONE DEVICE FOR A CIVILIZING DEVICE AND A COUNTERING DEVICE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336726A1 (en) 1983-10-08 1985-05-02 Erhardt & Leimer GmbH, 8900 Augsburg Edge sensing apparatus
US5120976A (en) * 1990-07-25 1992-06-09 The Boeing Company Strip lay-up verification system with width and centerline skew determination
DE19532009A1 (en) * 1994-12-10 1996-06-13 Koenig & Bauer Albert Ag Methods and devices for carrying out this method for measuring the position of a web or sheet
DE19906499A1 (en) * 1999-02-17 2000-08-24 Koenig & Bauer Ag Side correction process for sheets of paper in sheet printing press, grip system of which includes holding device to guide sheet to intended side position
JP2001077986A (en) 1999-09-03 2001-03-23 Sharp Corp Original edge sensor, original reader and facsimile terminal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787702A (en) * 1970-09-05 1974-01-22 Agfa Gevaert Ag Apparatus for detecting and evaluating indicia on processed photographic film or the like
DE3336721C2 (en) * 1983-10-08 1986-12-11 Erhardt & Leimer GmbH, 8900 Augsburg Photoelectric sensing device
EP0432289B1 (en) * 1989-12-11 1993-09-08 Siemens Nixdorf Informationssysteme Aktiengesellschaft Optical sensor for reflective and non-reflective materials
FI94176C (en) * 1992-12-16 1995-07-25 Valmet Paper Machinery Inc Method and apparatus for tracking the edge of a moving track
DE19506456C2 (en) * 1995-02-24 1999-07-01 Boewe Systec Ag Control device for monitoring the running of two superimposed paper webs in a paper processing machine
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336726A1 (en) 1983-10-08 1985-05-02 Erhardt & Leimer GmbH, 8900 Augsburg Edge sensing apparatus
US5120976A (en) * 1990-07-25 1992-06-09 The Boeing Company Strip lay-up verification system with width and centerline skew determination
DE19532009A1 (en) * 1994-12-10 1996-06-13 Koenig & Bauer Albert Ag Methods and devices for carrying out this method for measuring the position of a web or sheet
DE19906499A1 (en) * 1999-02-17 2000-08-24 Koenig & Bauer Ag Side correction process for sheets of paper in sheet printing press, grip system of which includes holding device to guide sheet to intended side position
JP2001077986A (en) 1999-09-03 2001-03-23 Sharp Corp Original edge sensor, original reader and facsimile terminal
US6744540B1 (en) * 1999-09-03 2004-06-01 Sharp Kabushiki Kaisha Document end detecting unit, document reading unit, and facsimile apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7115889B2 (en) 2003-06-05 2006-10-03 Heidelberger Druckmaschinen Ag Device and method for sensing the position of an edge of a product
DE102006046525A1 (en) * 2006-09-29 2008-04-03 Koenig & Bauer Aktiengesellschaft Sheet-positioning device for detecting the position of a side edge of a sheet transported in a sheet-transporting device onto a stacking table uses the front edge of a transported sheet towards measured stacking marks
WO2009140778A1 (en) * 2008-05-21 2009-11-26 Ferag Ag Optical position detection
US8823953B2 (en) 2008-05-21 2014-09-02 Ferag Ag Optical position detection
DE102014201773A1 (en) 2013-01-31 2014-07-31 Koenig & Bauer Aktiengesellschaft Guiding assembly in sheet processing machine for guiding sheet, has guide device that is provided with sheet hold-down which is extended to table top and whose height is always greater than distance between top marks and table top

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