EP1403202A1 - Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles - Google Patents

Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles Download PDF

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Publication number
EP1403202A1
EP1403202A1 EP02021524A EP02021524A EP1403202A1 EP 1403202 A1 EP1403202 A1 EP 1403202A1 EP 02021524 A EP02021524 A EP 02021524A EP 02021524 A EP02021524 A EP 02021524A EP 1403202 A1 EP1403202 A1 EP 1403202A1
Authority
EP
European Patent Office
Prior art keywords
sensor
sheets
sheet
detection
evaluation unit
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.)
Granted
Application number
EP02021524A
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German (de)
English (en)
Other versions
EP1403202B1 (fr
Inventor
Rolf Banschbach
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.)
Leuze Electronic GmbH and Co KG
Original Assignee
Leuze Electronic GmbH and Co KG
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 Leuze Electronic GmbH and Co KG filed Critical Leuze Electronic GmbH and Co KG
Priority to DE50205040T priority Critical patent/DE50205040D1/de
Priority to EP20020021524 priority patent/EP1403202B1/fr
Publication of EP1403202A1 publication Critical patent/EP1403202A1/fr
Application granted granted Critical
Publication of EP1403202B1 publication Critical patent/EP1403202B1/fr
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Expired - Lifetime 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
    • B65H7/12—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 double feed or separation
    • B65H7/125—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 double feed or separation sensing the double feed or separation without contacting the articles
    • 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
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • 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
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/23—Capacitive detectors, e.g. electrode arrangements
    • 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
    • B65H2553/30—Sensing or detecting means using acoustic or ultrasonic elements

Definitions

  • the method according to the invention is for different types of sheet-processing machines, including printing machines, for example Sheet-fed offset printing machines, gathering machines, laminating machines or folding machines can be used.
  • printing machines for example Sheet-fed offset printing machines, gathering machines, laminating machines or folding machines can be used.
  • the arithmetic mean of the signal levels of the sensor contained in the detection of an n-fold and (n + 1-fold) arc (2) is formed.
  • single sheets are conveyed in the printing press, the sheets 2 being located only in the areas of their long sides Overlap edges. This overlap is usually caused by close scaling.
  • multiple sheets can be conveyed in sheet-processing machines, a multiple sheet consisting of a stack of n sheets 2.
  • n 2, 3 or 4 sheets 2.
  • a sensor arrangement is provided on the sheet-processing machine 1, by means of which a detection and differentiation of single sheets and multiple sheets of different stacking heights is made possible.
  • the sensor arrangement is mounted in brackets, not shown, which are fastened to the sheet-processing machine 1.
  • the capacitive sensor 4 and the ultrasonic sensor 5 are aligned with the center of the sheets 2, these being arranged one behind the other in the conveying direction of the sheets 2.
  • the sequence of the individual sensors in the conveying direction can be chosen as desired. A side-by-side arrangement of these sensors 4 is also possible.
  • capacitive sensors 4 and ultrasonic sensors 5 can also be provided.
  • other sensors 4 such as inductive or optical sensors can also be provided.
  • the ultrasonic sensor 5 on the other hand, essentially serves only to check whether there is a sheet 2 at all in the area of the sensor arrangement. The signals registered thereby serve to compensate for drifts of the capacitive sensor 4.
  • FIGS. 2a, 2b and 3a, 3b illustrate different exemplary embodiments for carrying out the threshold value determinations during the learning phase.
  • first single sheets and then multiple sheets with a continuously increasing stack height are fed to the sensor arrangement during the learning phase.
  • the learning process is initiated in the learning phase with a manual comparison.
  • the capacitive sensor 4 is aligned with a single sheet and the signal level I 1 registered in the capacitive sensor 4 is stored.
  • a threshold value S 12 for distinguishing between a single and double sheet is calculated from a signal level I 1 .
  • the capacitive sensor 4 is triggered via the evaluation unit 6 in a predetermined, preferably periodic measuring cycle.
  • the period of the measuring cycle is designated T in FIG. 2a.
  • FIG. 2a shows three successive periods of the measuring cycle.
  • FIG. 2a shows the measuring point A at which a sheet 2 is detected with the capacitive sensor 4.
  • a sheet 2 will be in the same sheet position during each period, i.e. detected at the same measuring point A.
  • the capacitive sensor 4 is manually compared on a single sheet at the beginning of the learning phase.
  • the single and multiple sheets conveyed on it are then again automatically detected in a periodic measuring cycle specified by the evaluation unit 6, the period of the measuring cycle again being designated by T.
  • the signal level I 1 for a single sheet is obtained at the measuring point A and the signal level I 2 for a double sheet is obtained at the measuring point B, which is significantly greater than the value I 1 .
  • the threshold value S 34 is determined accordingly to distinguish between triple and quadruple arches.
  • the operating phase is started analogously to the performance example according to FIG. 2a.
  • the calculation of a threshold value takes place in each case on the basis of a measured signal level, this being multiplied by a scaling factor.
  • no scaling factors are required in the method described in FIG. 3a, since the signal levels determined at two different measuring points are used for the threshold value calculation.

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  • Controlling Sheets Or Webs (AREA)
EP20020021524 2002-09-26 2002-09-26 Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles Expired - Lifetime EP1403202B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE50205040T DE50205040D1 (de) 2002-09-26 2002-09-26 Verfahren zum Betrieb eines Sensors zur Erfassung von Bögen in einer bogenverarbeitenden Maschine
EP20020021524 EP1403202B1 (fr) 2002-09-26 2002-09-26 Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020021524 EP1403202B1 (fr) 2002-09-26 2002-09-26 Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles

Publications (2)

Publication Number Publication Date
EP1403202A1 true EP1403202A1 (fr) 2004-03-31
EP1403202B1 EP1403202B1 (fr) 2005-11-23

Family

ID=31970318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020021524 Expired - Lifetime EP1403202B1 (fr) 2002-09-26 2002-09-26 Procédé d'opération d'un détecteur pour la détection des feuilles dans une machine de traitement de feuilles

Country Status (2)

Country Link
EP (1) EP1403202B1 (fr)
DE (1) DE50205040D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019617A1 (de) * 2004-12-22 2006-07-06 Man Roland Druckmaschinen Ag Bogenverarbeitende Vorrichtung, insbesondere Bogendruckmaschine
EP1886949A2 (fr) 2006-08-09 2008-02-13 MAN Roland Druckmaschinen AG Détecteur d'erreur d'impression d'une machine de traitement de feuilles d'impression
EP1947040A1 (fr) * 2007-01-20 2008-07-23 manroland AG Machine d'impression de feuilles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826487A (en) * 1972-01-24 1974-07-30 Polygraph Leipzig Control apparatus and method for transporting sheets
EP0168202A1 (fr) * 1984-06-28 1986-01-15 De La Rue Systems Limited Procédé et appareil pour contrôler des feuilles
US5356130A (en) * 1992-02-19 1994-10-18 Ferag Ag Method and apparatus for detecting faults in a stream of overlapping products
EP0854452A2 (fr) * 1996-12-24 1998-07-22 Ncr International Inc. Appareil pour détecter des feuilles superimposées
EP0854453A2 (fr) * 1996-12-24 1998-07-22 Ncr International Inc. Appareil pour détecter des feuilles superimposées
DE20018193U1 (de) * 2000-10-25 2001-01-04 Leuze Electronic Gmbh & Co Vorrichtung zur Kontrolle von Bögen
US6405152B1 (en) * 1998-05-18 2002-06-11 Prim Hall Enterprises, Inc. Precision calipering system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826487A (en) * 1972-01-24 1974-07-30 Polygraph Leipzig Control apparatus and method for transporting sheets
EP0168202A1 (fr) * 1984-06-28 1986-01-15 De La Rue Systems Limited Procédé et appareil pour contrôler des feuilles
US5356130A (en) * 1992-02-19 1994-10-18 Ferag Ag Method and apparatus for detecting faults in a stream of overlapping products
EP0854452A2 (fr) * 1996-12-24 1998-07-22 Ncr International Inc. Appareil pour détecter des feuilles superimposées
EP0854453A2 (fr) * 1996-12-24 1998-07-22 Ncr International Inc. Appareil pour détecter des feuilles superimposées
US6405152B1 (en) * 1998-05-18 2002-06-11 Prim Hall Enterprises, Inc. Precision calipering system
DE20018193U1 (de) * 2000-10-25 2001-01-04 Leuze Electronic Gmbh & Co Vorrichtung zur Kontrolle von Bögen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BILLER U: "KEIN BLATT ZUVIEL", TECHNISCHE RUNDSCHAU, HALLWAG VERLAG. BERN, CH, vol. 88, no. 21, 24 May 1996 (1996-05-24), pages 42 - 43, XP000593950, ISSN: 1023-0823 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019617A1 (de) * 2004-12-22 2006-07-06 Man Roland Druckmaschinen Ag Bogenverarbeitende Vorrichtung, insbesondere Bogendruckmaschine
EP1886949A2 (fr) 2006-08-09 2008-02-13 MAN Roland Druckmaschinen AG Détecteur d'erreur d'impression d'une machine de traitement de feuilles d'impression
DE102006037248B4 (de) * 2006-08-09 2021-01-14 manroland sheetfed GmbH Falschbogensensor einer Druckbogen verarbeitenden Maschine
EP1947040A1 (fr) * 2007-01-20 2008-07-23 manroland AG Machine d'impression de feuilles
DE102007003001A1 (de) 2007-01-20 2008-07-24 Man Roland Druckmaschinen Ag Bogendruckmaschine

Also Published As

Publication number Publication date
DE50205040D1 (de) 2005-12-29
EP1403202B1 (fr) 2005-11-23

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