EP1249415A3 - Method and device for measuring positions of continuously moving sheets - Google Patents

Method and device for measuring positions of continuously moving sheets Download PDF

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Publication number
EP1249415A3
EP1249415A3 EP01129806A EP01129806A EP1249415A3 EP 1249415 A3 EP1249415 A3 EP 1249415A3 EP 01129806 A EP01129806 A EP 01129806A EP 01129806 A EP01129806 A EP 01129806A EP 1249415 A3 EP1249415 A3 EP 1249415A3
Authority
EP
European Patent Office
Prior art keywords
sheets
sheet
positions
printing
printing press
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Withdrawn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
EP01129806A
Other languages
German (de)
French (fr)
Other versions
EP1249415A2 (en
Inventor
Frank Pierel
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.)
NexPress Solutions LLC
Original Assignee
NexPress Solutions LLC
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 NexPress Solutions LLC filed Critical NexPress Solutions LLC
Publication of EP1249415A2 publication Critical patent/EP1249415A2/en
Publication of EP1249415A3 publication Critical patent/EP1249415A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B65H2511/20—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
    • B65H2511/20—Location in space
    • B65H2511/24—Irregularities, e.g. in orientation or skewness
    • 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
    • B65H2511/40—Identification
    • B65H2511/413—Identification of image
    • 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
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • 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
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42—Cameras
    • 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
    • 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
    • B65H2701/132—Side portions
    • B65H2701/1322—Side portions corner

Abstract

Die Erfindung bezieht sich auf eine Einrichtung zur Messung von Positionen von Bogen für eine Druckmaschine. Ein Problem beim Transport von Bogen durch die Druckmaschine ist das Sicherstellen der korrekten Orientierung und Lage der Bogen, die insbesondere beim Druck gewährleistet sein müssen. Die Erfindung erfüllt die Aufgabe, ein Verfahren und eine Einrichtung bereitzustellen, die Positionen von Bogen bei Druckmaschinen exakt bestimmen und korrigieren.
Zur erfindungsgemäßen Lösung werden Randbereiche eines Bogens jeweils abgebildet, Abbildungsdaten zu einer Rechnereinheit übertragen und die Position des Bogens anhand der Abbildungsdaten mittels eines Bilderkennungsalgorithmus ermittelt. Ferner werden die ermittelten Positionen des Bogens mit in der Rechnereinheit gespeicherten Positionen verglichen und aus dem Vergleich Positions - Abweichungen errechnet, die an die Druckmaschine übertragen werden und mittels einer Bogen-Registrationseinrichtung korrigiert werden.

Figure 00000001
The invention relates to a device for measuring positions of sheets for a printing press. One problem when transporting sheets through the printing press is ensuring the correct orientation and position of the sheets, which must be ensured in particular when printing. The object of the invention is to provide a method and a device which precisely determine and correct the positions of sheets in printing presses.
For the solution according to the invention, edge areas of a sheet are imaged, image data are transmitted to a computer unit and the position of the sheet is determined using the image data using an image recognition algorithm. Furthermore, the determined positions of the sheet are compared with positions stored in the computer unit, and positional deviations are calculated from the comparison, which are transmitted to the printing press and corrected by means of a sheet registration device.
Figure 00000001
EP01129806A 2001-04-14 2001-12-14 Method and device for measuring positions of continuously moving sheets Withdrawn EP1249415A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10118556 2001-04-14
DE10118556 2001-04-14

Publications (2)

Publication Number Publication Date
EP1249415A2 EP1249415A2 (en) 2002-10-16
EP1249415A3 true EP1249415A3 (en) 2004-02-04

Family

ID=7681556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129806A Withdrawn EP1249415A3 (en) 2001-04-14 2001-12-14 Method and device for measuring positions of continuously moving sheets

Country Status (4)

Country Link
US (2) US20030164876A1 (en)
EP (1) EP1249415A3 (en)
JP (1) JP2002331646A (en)
DE (2) DE10214531B4 (en)

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Also Published As

Publication number Publication date
US20030164876A1 (en) 2003-09-04
DE10214531B4 (en) 2011-04-28
EP1249415A2 (en) 2002-10-16
JP2002331646A (en) 2002-11-19
US20020177918A1 (en) 2002-11-28
DE10215511A1 (en) 2002-11-21
DE10214531A1 (en) 2002-10-17
US6845288B2 (en) 2005-01-18

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