EP1268143B1 - Dispositif de rognage et de decoupage automatiques d'images sur papier et autres substrats graphiques et photographiques, en particulier de grand format - Google Patents

Dispositif de rognage et de decoupage automatiques d'images sur papier et autres substrats graphiques et photographiques, en particulier de grand format Download PDF

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Publication number
EP1268143B1
EP1268143B1 EP01919748A EP01919748A EP1268143B1 EP 1268143 B1 EP1268143 B1 EP 1268143B1 EP 01919748 A EP01919748 A EP 01919748A EP 01919748 A EP01919748 A EP 01919748A EP 1268143 B1 EP1268143 B1 EP 1268143B1
Authority
EP
European Patent Office
Prior art keywords
substrate
images
cutting unit
optical sensors
rollers
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
EP01919748A
Other languages
German (de)
English (en)
Other versions
EP1268143A1 (fr
Inventor
Valter Maddalon
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.)
Fotoba International Srl
Original Assignee
Fotoba International Srl
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 Fotoba International Srl filed Critical Fotoba International Srl
Publication of EP1268143A1 publication Critical patent/EP1268143A1/fr
Application granted granted Critical
Publication of EP1268143B1 publication Critical patent/EP1268143B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/34—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier scanning being effected by a photosensitive device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member

Definitions

  • the present invention relates to a device for trimming and automatic cutting of a multiple or single images, obtained in particular by digital rendering on paper or other graphic or photographic supports wound in rolls or in the form of single sheets, especially of large size. It is known from publication EP-A-0951973 (disclosing the preamble of claim 1), in the name of the same applicant, to provide an automatic cutting device which allows to separate one by one multiple copies in a rapid and precise manner according to the positioning as set by the software of the digital rendering system itself in the printing stage by previously inserting between the copies or prints, where the cutting is required, marks of optical reflection recognizing, easily detectable by continuous scanning.
  • the angular correction of the cut can be carried out either with respect to a mark, as it was made previously, at the edge of an opaque material being laminated onto a transparent material, or with respect to images printed not at right angles to the substrate. It was thus possible to obtain the cutting on substrates in the form of reels or as sheets, even if free from any guide system.
  • the substrate introduction steps which require excessive care in the alignment would involve too much labor being engaged, thus lengthening the time of production to become anti-economic to the detriment of the advantages which could be obtained with the above-mentioned prior art as described in the said EP publication. Therefore the solution is that of adopting a pair of feed rollers having reduced lengths with respect to the width to be cut, such as to occupy only the central zone of the support width. In this way, since the feeding rollers have more orientation freedom, there is no problem of perfect alignment at the paper introduction, which thereby requires less care and allows a speedier cutting execution.
  • a preferred embodiment of the present invention provides for two angular motors placed at the side ends of the cutting unit and synchronized by the microprocessor such as to simulate the central pivoting of the cutting blades in spite of their lateral guide.
  • a device 1 for the automatic trimming and cutting of images 10a, 10b, 10c printed in a traditional way or obtained by digital rendering systems on a substrate 10 formed e.g. as a continuous paper reel but which could instead be formed of single sheets.
  • the successive images 10a, 10b, 10c are separate by marks or boundary lines M which can be detected optically by means of a pair of sensors 4, 4' along an ideal reading line that is perfectly transverse to the feed direction as indicated by the arrow F.
  • the feed of substrate 10 is driven by at least a pair of rollers 2, of which only the one above the substrate 10 is visible.
  • the length of the feeding rollers 2, useful to hold the substrate 10 is reduced with respect to the total width of the mobile cutting device 7 and also to the width A of the working table of the device. They are in a central position with respect to the substrate 10 and are driven by a motor 3.
  • differential length meters 6, 6' or “encoders” having a mutual distance B which is larger than the length of rollers 2 and shorter than said width A.
  • the optical sensors 4, 4' detect an angle zero and the two differential length meters 6, 6' detect a likely identical feed of the substrate 10 starting from the moment at which the mark M is detected by the optical sensor 4, 4' until the end of the feed movement or "offset” being controlled by a microprocessor, corresponding to the distance between the reading point or line as defined by the optical sensors 4, 4' and the working line of the cutting unit 7. If the feed is identically detected by the two "encoders" 6, 6', it means that there are no angular errors to be taken into account for the cutting and this will be accomplished under control of motor 9, along a line perfectly parallel to the separation mark M.
  • the two encoders 6, 6' detect different "offset" lengths during the shift automatically controlled by the microprocessor, this means that the nip of the rollers 2, which is of limited extension in the central zone and due in particular to the weight itself of the paper substrate, causes a skidding. In this way the angle shown by the mark M against the cutting units 7 after the "offset" feed will be modified and to correct the same the device of the present invention will be useful. In fact, the angular error will correspond to the feed difference as detected by the two encoders 6, 6' at the side of rollers 2.
  • the relevant differential data are supplied to the microprocessor which causes its algebraic sum with the possible angle of entering error, whereby the control pulse to the two motors 5, 5' can correct the cutting position to the same extent as the error given by the skidding of material.
  • the drive of the two motors 5, 5', which are placed at the end sides of the cutting unit 7, is synchronized by the microprocessor such as to simulate, with two lateral guides, a central pivoting of the cutting unit itself.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Cutting Processes (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Editing Of Facsimile Originals (AREA)

Claims (3)

  1. Dispositif pour rogner ou couper automatiquement des images (10a, 10b, 10c,...) imprimées sur des substrats graphiques et photographiques sous la forme d'une bobine ou de feuilles simples, en particulier de grand format, une marque de reconnaissance optique (M) étant prévue entre chaque image successive, le dispositif comprenant au moins une paire de tambours d'alimentation (2) entraínée par un moteur (3) et une unité de coupage mobile (7) dont les lames sont actionnées par un moteur (9), une paire de capteurs optiques (4, 4') étant placées entre chaque paire de tambours (2) et ladite unité de coupage mobile (7) pour détecter lesdites marques (M), caractérisé en ce qu'il comprend en outre, sur les côtés desdits tambours (2), qui forment leurs points de contact sur une zone centrale uniquement dudit substrat (10), ayant une longueur inférieure à la largeur de l'unité de coupage mobile (7) et inférieure à la largeur du substrat d'image (10), deux dispositifs de mesure de différence de longueur (6, 6') pour détecter des longueurs d'alimentation différentes du substrat (10) après le passage d'une ligne de marque (M) à partir des capteurs optiques (4, 4') vers la ligne de coupage, et un microprocesseur pour traiter les données issues desdits dispositifs de mesure (6, 6') en combinaison avec l'angle d'erreur résultant de la lecture de deux capteurs optiques (4, 4') pour commander ensuite le fonctionnement des deux moteurs (5, 5') pour commander l'orientation de ladite unité de coupage mobile (7).
  2. Dispositif selon la revendication 1, caractérisé en ce que ledit microprocesseur effectue la somme algébrique de l'erreur angulaire telle que détectée par les deux dispositifs de mesure (6, 6') en conséquence d'un glissement du substrat (10) en correspondance avec le transport fixe sous le contrôle du microprocesseur lui-même, égal à la distance entre la ligne desdits capteurs optiques (4, 4'), et la ligne active de ladite unité de coupage (7), ajoutée à l'erreur angulaire telle que détectée lorsque la marque (M) est lue par les capteurs optiques (4, 4'), l'unité de coupage mobile (7) étant orientée de manière appropriée par une action sur lesdits moteurs (5, 5').
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que lesdits dispositifs de mesure de différence d'alimentation (6, 6') sont placés sur les côtés de ladite paire de tambours d'alimentation (2) à une distance totale (B) entre eux qui est inférieure à la largeur (A) de la table de travail du dispositif sans les guides latéraux.
EP01919748A 2000-04-06 2001-03-15 Dispositif de rognage et de decoupage automatiques d'images sur papier et autres substrats graphiques et photographiques, en particulier de grand format Expired - Lifetime EP1268143B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI000740 2000-04-06
IT2000MI000740A IT1317179B1 (it) 2000-04-06 2000-04-06 Dispositivo di finitura e taglio automatico di immagini su carta edaltri supporti grafici e fotografici in particolare di grande formato.
PCT/IT2001/000131 WO2001076833A1 (fr) 2000-04-06 2001-03-15 Dispositif de rognage et de decoupage automatiques d'images sur papier et autres substrats graphiques et photographiques, en particulier de grand format

Publications (2)

Publication Number Publication Date
EP1268143A1 EP1268143A1 (fr) 2003-01-02
EP1268143B1 true EP1268143B1 (fr) 2003-12-10

Family

ID=11444778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919748A Expired - Lifetime EP1268143B1 (fr) 2000-04-06 2001-03-15 Dispositif de rognage et de decoupage automatiques d'images sur papier et autres substrats graphiques et photographiques, en particulier de grand format

Country Status (6)

Country Link
EP (1) EP1268143B1 (fr)
AT (1) ATE255985T1 (fr)
AU (1) AU4680601A (fr)
DE (1) DE60101465T2 (fr)
IT (1) IT1317179B1 (fr)
WO (1) WO2001076833A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20012234A1 (it) * 2001-10-24 2003-04-24 Fotoba Int Srl Apparecchiatura di finitura e taglio automatico di immagini su fogli di carta ed altri supporti grafici e fotografici
JP4933052B2 (ja) 2004-03-18 2012-05-16 オセ−テクノロジーズ ビーブイ スマートパンチングに対するシート処理方法及びシート処理機器
EP1577064A1 (fr) * 2004-03-18 2005-09-21 Océ-Technologies B.V. Procédé et dispositif de perforation décalé et empilage décalé
IT1365619B1 (it) * 2005-05-27 2009-09-11 Fotoba Int Srl Dispositivo per tagliare carta ed altri supporti grafici in bobina contemporaneamente su due assi con correzione automatica degli errori
US8051757B2 (en) 2006-10-25 2011-11-08 Fotoba International S.R.L. Method for cutting paper and other graphic supports on a roll at the same time along two perpendicular axes with automatic correction of errors
IT1393147B1 (it) 2009-03-09 2012-04-11 Sacmi Labelling S P A Ora Sacmi Verona S P A Apparato e metodo di alimentazione
CN112278936B (zh) * 2020-11-06 2022-07-08 徐州亮华环保科技有限公司 一种用于纸制品的高精度自动裁切机及其工作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE24431T1 (de) * 1982-10-22 1987-01-15 Agfa Gevaert Nv Geraet zum schneiden von dokumenten.
US4697485A (en) * 1986-04-16 1987-10-06 Preco Industries, Inc. Die press having 3-axis registration system operable during material advancement
US5079981A (en) * 1988-11-14 1992-01-14 D&K Custom Machine Design, Inc. Cutter mechanism
JP2696034B2 (ja) * 1992-03-30 1998-01-14 大日本スクリーン製造株式会社 シート材の搬送装置
US5586479A (en) * 1993-03-10 1996-12-24 Eastman Kodak Company Cutting apparatus for cutting an image from a receiving sheet
US5644979A (en) * 1996-04-30 1997-07-08 Preco Industries, Inc. Die cutting and stamping press having simultaneous X, Y, and .O slashed. axes die registration mechanism and method
IT243960Y1 (it) * 1998-04-23 2002-03-06 Fotoba Internat S A S Di Pietr Dispositivo automatico di taglio in squadra di carta ed altrisupporti grafici e fotografici

Also Published As

Publication number Publication date
ITMI20000740A0 (it) 2000-04-06
ATE255985T1 (de) 2003-12-15
WO2001076833A1 (fr) 2001-10-18
EP1268143A1 (fr) 2003-01-02
DE60101465T2 (de) 2004-10-21
ITMI20000740A1 (it) 2001-10-06
IT1317179B1 (it) 2003-05-27
DE60101465D1 (de) 2004-01-22
AU4680601A (en) 2001-10-23

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