EP1588965B1 - Méthode pour commander la position d'une feuille dans une plieuse - Google Patents

Méthode pour commander la position d'une feuille dans une plieuse Download PDF

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Publication number
EP1588965B1
EP1588965B1 EP04009558A EP04009558A EP1588965B1 EP 1588965 B1 EP1588965 B1 EP 1588965B1 EP 04009558 A EP04009558 A EP 04009558A EP 04009558 A EP04009558 A EP 04009558A EP 1588965 B1 EP1588965 B1 EP 1588965B1
Authority
EP
European Patent Office
Prior art keywords
sheet
curve
measured
folding machine
folding
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 - Lifetime
Application number
EP04009558A
Other languages
German (de)
English (en)
Other versions
EP1588965A1 (fr
Inventor
Klaus Stocklossa
Eberhard Krieger
Georg Dannemann
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder 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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Priority to EP04009558A priority Critical patent/EP1588965B1/fr
Priority to DE502004004356T priority patent/DE502004004356D1/de
Priority to US11/110,692 priority patent/US20050239621A1/en
Priority to CN2005100676161A priority patent/CN1689949B/zh
Publication of EP1588965A1 publication Critical patent/EP1588965A1/fr
Application granted granted Critical
Publication of EP1588965B1 publication Critical patent/EP1588965B1/fr
Anticipated expiration legal-status Critical
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
    • B65H45/00—Folding thin 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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • 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
    • B65H2511/52—Defective operating conditions
    • 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
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/23—Recording or storing data
    • 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
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve

Definitions

  • the invention relates to a method for controlling the position of a transported in a folding machine sheet, as shown in DE-A-3 730 683 is known.
  • a sheet In a folding unit of a folding machine, a sheet should be folded so that after folding, all edges of the sheet are congruent superimposed. The prerequisite for this is that the sheet was cut absolutely right-angled, the sheet is inserted at right angles to the longitudinal axes of the folding rollers and the folding rollers have the same tensile force over their working width.
  • the folding pocket When folding in a folding pocket, it is necessary that the folding pocket is not placed obliquely to the sheet transport direction and their clear width is optimally selected between the pocket bars.
  • the sheet stop in the folder pocket must be set at right angles to the transport direction.
  • adjusting devices are provided at the corresponding points of the folding machine.
  • a change in the folding result is detected by an operator of the folding machine only if the quality of the finished folded sheet is continuously monitored. The operator must then recognize on the basis of the folded product, at which point of the folding machine a correction must be made so that the folding quality is optimal again. This is very expensive and requires a very large experience of the operator.
  • the invention has for its object to provide with structurally simple means a method for controlling the position of a sheet transported in a folding machine, which allows an operator to quickly recognize the source of error in the folding of a sheet and make the appropriate measures for correction.
  • the operator of the folding machine is alerted by the error signal of the processor device to the misplacement of the sheet.
  • the operator immediately recognizes at which point in a folding machine the error first occurred. He can then take the appropriate measures to correct the misplacement of the bow.
  • the correction can be made during operation by the operator.
  • the processor means may issue a command to stop the folding machine after the error signal has been output.
  • the detection device is formed in a preferred embodiment of a light curtain, which passes on an electrical signal as a measured value to the processor device depending on the coverage by the arc.
  • a light curtain is, for example, the photosensor with analog output FAV30-01 from SensoPart.
  • the electrical signal may be a voltage value, e.g. from 0 to 10V, a current value, e.g. from 0 to 20mA, a serial data interface may be a parallel interface or the like.
  • the detection and evaluation can also be done via an image processing system with camera, processor device and appropriate software.
  • the reference curve is preferably determined during passage of a calibration sheet, which is optimally folded after passing through the folding machine.
  • the folding machine shown in Fig. 1 has a first folding unit 23 with two folding rollers 24, 26 and a first folding unit 23 downstream second folding unit 29 with folding rollers 28, 30.
  • the first folding unit 23 is a first inclined roller table 16 upstream, which has in a known manner an alignment ruler 20 which extends in the transport direction TR1 of the sheet 36.
  • the sheet 36 is brought by the first inclined roller table 16 to rest against the alignment ruler 20 and then guided in the transport direction TR1 between the folding rollers 24, 26 and folded by these.
  • the transport direction TR2 is perpendicular to the transport direction TR1 of the first Schrägrollenticians 16.
  • the oblique rollers of the sheet 39 is brought to rest on an alignment ruler 22 and then guided between the folding rollers 28, 30 of the second folding unit 29 and folded again.
  • a light curtain 32 is arranged as a detection device, the longitudinal direction of which runs at right angles to the longitudinal direction of the alignment ruler 20.
  • the sheet 36 should already rest against the alignment ruler 20, in order then to be introduced in the transport direction TR1 between the folding rollers 24, 26.
  • the light curtain 32 is arranged such that it extends beyond the sheet edge 37 facing away from the alignment ruler 20 in the direction of the alignment ruler 20 in order to be able to grasp the sheet edge 37.
  • the light curtain 32 passes a reading to a processor device (not shown).
  • the light curtain is, for example, a photosensor with analog output FAV30-01 from SensoPart. This photosensor outputs a voltage of 0 to 10V to the processor device depending on the coverage by the arc 37.
  • a similar light curtain 34 is arranged in front of the second folding unit 29.
  • Fig. 2 shows schematically a folding pocket 40 with a plurality of pocket-forming pocket bars 42 and the path of a fold pocket 48 incoming bow limiting stop 44. Shortly after the pocket inlet is arranged parallel to the stop 44 in light curtain 46, which extends over the in Fig. 2 extends right edge 49 of an arc addition. As indicated by the double arrow TR, the sheet 48 is inserted until it hits the stop 44. Subsequently, the sheet 48 is again conveyed out of the folding pocket 40 addition.
  • FIG. 3 shows, for example, a U (voltage) S (path) reference curve RK of a calibration sheet, which is determined by the processor device on the basis of the measured values which were determined by the light scanner 32 during the passage of a calibration sheet.
  • the voltage U is passed from the light curtain to the processor device.
  • the path S is determined via a rotary encoder at the corresponding folding unit. This rotary encoder is firmly connected to the sheet transport system. Each pulse on the rotary encoder corresponds to a certain path of the sheet transport system. From the number of pulses, the processor device can therefore determine the sheet path S and thus the U-S curve.
  • FIG. 4 shows a measurement curve MK1 of an arc 36 passing obliquely in the region of the light curtain 32.
  • the measurement curve MK1 shows that the sheet edge 37, when entering through the light curtain 32, is closer to the alignment ruler 20 than the sheet edge 37 of the calibration sheet.
  • the distance of the sheet edge 37 substantially corresponds to the distance of the sheet edge of the calibration sheet.
  • the measured curve MK2 shown in FIG. 5 reveals that the sheet running direction of the sheet 36 is parallel to the sheet running direction of the calibration sheet. However, the sheet 36 covers the light curtain 32 further than the calibration sheet, so that a higher voltage is output from the light curtain 32.
  • the curve 36 corresponding to the curve MK 2 is thus located at a distance from the alignment ruler 20.
  • FIG. 6 shows a measurement curve MK3 of a sheet 36 which is transported exactly along the alignment ruler 20 and whose width corresponds to the width of the calibration sheet. However, the leading sheet edge of the incoming sheet 36 later enters the light curtain 32 than that of the calibration sheet.
  • a measurement curve MK1, MK2 or MK3 is determined by the processor device, it outputs an error signal indicating that the sheet 36 is not transported according to the calibration sheet. After the error signal has been output, taking the differences in the measured curves MK1, MK2 and MK3 into consideration for the reference curve RK, the appropriate measures can then be taken by an operator or, if appropriate, automatically.
  • the second embodiment of the folding machine 50 shown in FIG. 7 differs from the folding machine shown in FIG. 1 in that the folding roller pairs 23, 29 each have a pair of knife shafts 52 and 54, respectively, through the perforations or grooves in one of the folding roller pairs 23 , 29 folded sheets are formed which weaken the sheets along a fold line.
  • Correction of slanted perforation lines is normally performed by pulling a sheet switch (not shown) on the leading side in front of the pair of knife shafts 52 in the folder 12. By pulling a path extension is enforced when passing through the curved switch and thus compensated for the lead.
  • the use of the light curtain 58 behind the pair of knife shafts 52 allows the monitoring of the directional stability of the expiring arc side edge 62 and thus the perforation line generated in the pair of knife shafts 52.
  • Any deviation of a determined measurement curve from a reference curve can be signaled to the operator by an error signal of the processor device, so that the corresponding curved diverter can be pulled.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (8)

  1. Procédé pour le contrôle de position d'une feuille (36, 38, 48) transportée dans une plieuse, dans lequel
    - la course de la feuille (36, 38, 48) est déterminée pendant le transport de la feuille (36, 38, 48),
    - des données de la feuille (36, 38, 48) sont détectées par un dispositif d'enregistrement (32, 34, 46) pendant le transport de la feuille (36, 38, 48) en au moins un endroit de détection,
    - le dispositif de détection (32, 34, 46) transmet des valeurs de mesure correspondant aux données détectées à un dispositif processeur,
    - le dispositif processeur calcule une courbe de mesure (MK1, MK2, MK3) sur la base des valeurs de mesure détectées et de la course déterminée de la feuille (36, 38, 48) par l'endroit de détection,
    - le dispositif processeur compare la courbe de mesure (MK1, MK2, MK3) avec une courbe de référence (RK) prédéfinie,
    caractérisé en ce que
    - les données détectées par le dispositif de détection (32, 34, 46) sont des positions d'une arête de feuille (37, 39, 49) agencée sensiblement dans le sens de transport (TR), et
    - le dispositif processeur sort un signal d'erreur lorsque la courbe de mesure (MK1, MK2, MK3) est différente de la courbe de référence (RK).
  2. Procédé selon la revendication 1, caractérisé en ce que, dans le cas d'un faible écart de la courbe de mesure (MK1, MK2, MK3) par rapport à la courbe de référence (RK), une information pour un utilisateur de la plieuse (10) est sortie après la sortie du signal d'erreur.
  3. Procédé selon la revendication 1, caractérisé en ce que, dans le cas d'un grand écart entre la courbe de mesure (MK1, MK2, MK3) et la courbe de référence (RK), la plieuse (10) est arrêtée après la sortie du signal d'erreur.
  4. Procédé selon la revendication 1, caractérisé en ce que, après la sortie du signal d'erreur, les entraînements de la plieuse, responsables de l'écart, sont activés de telle sorte que, dans le cas d'une feuille consécutive, la courbe de mesure (MK1, MK2, MK3) et la courbe de référence (RK) coïncident.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de détection (32, 34, 46) est formé par un rideau de lumière qui transmet une valeur de tension comme valeur de mesure au dispositif processeur en fonction du recouvrement par la feuille (36, 38, 48).
  6. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de détection (32, 34, 46) est formé par un rideau de lumière qui, en fonction du recouvrement par la feuille (36, 38, 48), transmet comme valeur de mesure une valeur de courant, une interface de données série ou une interface parallèle au dispositif processeur.
  7. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de détection est formé par une caméra qui est raccordée à un système de traitement d'image.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la courbe de référence (RK) est déterminée lors du passage d'une feuille d'étalonnage.
EP04009558A 2004-04-22 2004-04-22 Méthode pour commander la position d'une feuille dans une plieuse Expired - Lifetime EP1588965B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04009558A EP1588965B1 (fr) 2004-04-22 2004-04-22 Méthode pour commander la position d'une feuille dans une plieuse
DE502004004356T DE502004004356D1 (de) 2004-04-22 2004-04-22 Verfahren zur Lagekontrolle eines in einer Falzmaschine transportierten Bogens
US11/110,692 US20050239621A1 (en) 2004-04-22 2005-04-21 Method for monitoring the position of a sheet transported in a folding machine
CN2005100676161A CN1689949B (zh) 2004-04-22 2005-04-22 在折页机中传送的页张的位置检测方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04009558A EP1588965B1 (fr) 2004-04-22 2004-04-22 Méthode pour commander la position d'une feuille dans une plieuse

Publications (2)

Publication Number Publication Date
EP1588965A1 EP1588965A1 (fr) 2005-10-26
EP1588965B1 true EP1588965B1 (fr) 2007-07-18

Family

ID=34924696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009558A Expired - Lifetime EP1588965B1 (fr) 2004-04-22 2004-04-22 Méthode pour commander la position d'une feuille dans une plieuse

Country Status (4)

Country Link
US (1) US20050239621A1 (fr)
EP (1) EP1588965B1 (fr)
CN (1) CN1689949B (fr)
DE (1) DE502004004356D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662906A (zh) * 2012-09-06 2014-03-26 海德堡印刷机械股份公司 具有关节臂支承装置的用于使页张定向的装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2030924A1 (fr) * 2007-08-28 2009-03-04 Müller Martini Holding AG Dispositif de traitement de produits imprimés
DE102007054937A1 (de) * 2007-11-17 2009-05-20 Manroland Ag Vorrichtung zum Falzen von Flachprodukten
DE102017107480A1 (de) * 2017-04-07 2018-10-11 Schmale-Holding Gmbh & Co. Verfahren und Vorrichtung zum Ausrichten eines Flächenbereiches eines flexiblen Materialstückes
CN111278756A (zh) * 2017-11-02 2020-06-12 好利用国际株式会社 折纸机
CN109230798B (zh) * 2018-12-17 2019-03-19 长沙奥托机械股份有限公司 一种折页机纸台输纸控制方法及装置

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DE3270835D1 (en) * 1982-03-01 1986-06-05 Christian Pierre Bourg Sheet collator
DD215296A1 (de) * 1983-05-03 1984-11-07 Polygraph Leipzig Einrichtung zur kontrolle des bogenlaufes von angelegten bogen
DE3730683A1 (de) * 1987-09-12 1989-03-23 Gremser Masch Franz Verfahren und vorrichtung zur kontrolle von gegenstaenden
US5120976A (en) * 1990-07-25 1992-06-09 The Boeing Company Strip lay-up verification system with width and centerline skew determination
US5294803A (en) * 1991-12-30 1994-03-15 Tandberg Data A/S System and a method for optically detecting an edge of a tape
JPH06113068A (ja) * 1992-09-28 1994-04-22 Canon Inc 記録装置
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US6635895B2 (en) * 2000-09-07 2003-10-21 Fife Corporation Edge scan sensor for web guiding apparatus
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662906A (zh) * 2012-09-06 2014-03-26 海德堡印刷机械股份公司 具有关节臂支承装置的用于使页张定向的装置
CN103662906B (zh) * 2012-09-06 2016-11-23 海德堡印刷机械股份公司 具有关节臂支承装置的用于使页张定向的装置

Also Published As

Publication number Publication date
US20050239621A1 (en) 2005-10-27
CN1689949A (zh) 2005-11-02
DE502004004356D1 (de) 2007-08-30
CN1689949B (zh) 2010-06-09
EP1588965A1 (fr) 2005-10-26

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