EP0892754A1 - Caisse aspirante pour guidage de feuille - Google Patents

Caisse aspirante pour guidage de feuille

Info

Publication number
EP0892754A1
EP0892754A1 EP97920566A EP97920566A EP0892754A1 EP 0892754 A1 EP0892754 A1 EP 0892754A1 EP 97920566 A EP97920566 A EP 97920566A EP 97920566 A EP97920566 A EP 97920566A EP 0892754 A1 EP0892754 A1 EP 0892754A1
Authority
EP
European Patent Office
Prior art keywords
suction
suction box
sheet
box
suction chamber
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
EP97920566A
Other languages
German (de)
English (en)
Other versions
EP0892754B1 (fr
Inventor
Gerald Josef Reinhard
Johannes Georg Schaede
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 EP0892754A1 publication Critical patent/EP0892754A1/fr
Application granted granted Critical
Publication of EP0892754B1 publication Critical patent/EP0892754B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the invention relates to a suction box for guiding sheets according to the preamble of claim 1.
  • the invention has for its object to provide a suction box for guiding sheets.
  • the suction box according to the invention can advantageously be adapted to the format of sheets. As a result, downflow of air is avoided and a constant suction power is achieved even with formats of different sizes. With large formats, corners and edges tend to flutter more. In order to avoid fluttering of the corners, independently controllable suction chambers are provided.
  • this suction box With inspection systems, because it is necessary for inspection systems to guide sheets that are to be inspected quietly and flutter-free, at least during image recording. In the remaining areas of a sheet transport rec ke this is not absolutely necessary, so that the increased technical to flutter-free guidance Effort can be avoided.
  • the device according to the invention is shown in the drawing and is described in more detail below.
  • Fig. 1 is a schematic side view of a
  • Figure 2 is a schematic view of a device for qualitative assessment in transport direction of the printed sheets.
  • FIG. 1 A schematic plan view of a suction box of the device for qualitative assessment of printed sheets
  • a device for the qualitative assessment of processed material 1 consists essentially of a guide 2, a lighting device 3, at least one sensor 4 and a downstream evaluation unit.
  • This quality control system can be used to monitor both webs and sheets 1 in a rotary printing press or
  • the quality control system is used in a sheet-fed rotary printing press for securities, in particular for banknotes.
  • Sheets 1 to be inspected are transported, for example, by means of gripper systems 6 in a sheet transport plane 7. These gripper systems 6 are attached to rotating chains 8 of a chain conveyor known per se. Above the sheet transport level 7, the guide 2 is arranged. This guide 2 has the arch, for example
  • the guide surface 9 is designed, for example, as a suction box 2.
  • the guide surface 9 is provided with a plurality of perforations 11, ie the guide surface 9 is formed by a perforated plate.
  • the perforations 11 have a diameter of 2 mm, for example, and are in spaced 3mm apart.
  • This guide surface 9 is interchangeable (with different perforations) and can be opened for maintenance work.
  • Partition walls are arranged within the suction box 2, so that a number of independently acting, separately controllable suction chambers 12 to 23 is formed.
  • an area corresponding to the smallest format of the sheets 1 to be processed is divided in transport direction T into a front 12 and rear suction chamber 13.
  • On the four sides of this rectangular area there is another suction chamber 14, 16, 17, 18.
  • four suction chambers 19, 21, 22, 23 are again arranged in the direction of the outer edges of the sheet 1, the in
  • Transport direction T extending outer suction chambers 21, 23 can be divided again.
  • a negative pressure in the individual suction chambers 12 to 23 is individual, for. B. by means of bypass control, adjustable.
  • a holding force acting on the sheet 1 on z. B. format, material or processing of the sheet 1 can be adjusted.
  • the lighting device 3 and the sensor 4 are arranged opposite the suction box 2.
  • the lighting device 3 has a V-shaped cross section in the transport direction T, ie it is designed as a V-shaped box 24.
  • This box 24 points two legs 26, 27 with flat faces 28, 29 which face the sheet 1 to be inspected facing towards the left. These legs 26, 27 enclose an opening angle alpha of, for example, 122 °. This opening angle alpha preferably has a range from 90 ° to 150 °.
  • Each of the two light exit surfaces 28, 29 is trapezoidal.
  • the shorter of the two base sides 31, 32 abut each other and run parallel to the transport direction T.
  • the two short base sides 31 have a length 131 of z. B 350 mm.
  • the size and shape of the lighting device is therefore adapted to the format of the sheets to be inspected.
  • the light exit surfaces 28, 29 consist for example of milk glass panes.
  • a plurality of diffusely radiating light sources are arranged under each of these milk glass panes. These light sources are designed, for example, as single flash tubes. This arrangement of light sources and milk glass panes achieves particularly uniform illumination of the sheets 1 to be inspected.
  • the lighting device 3 can instead of V-shaped cross-section also have a curved, for example circular-arc-shaped cross-section,
  • a plurality of guide webs 33 (“shutter”) running parallel in the transport direction T can also be placed on the milk glass pane.
  • These guide webs 33 can, for example, be made from sheet metal or also from frosted glass.
  • An angle of inclination of these guide webs 33 with respect to the light exit surfaces 28, 29 or arc transport plane 7 is adapted to run approximately parallel to a light beam, such a light beam directed between two guide webs 33 striking a reflecting area of the sheet 1 after reflection there on the sensor 4.
  • the lighting device can also consist of several individually arranged light sources.
  • the sensor 4 is arranged in a center of this lighting device 3.
  • a CCD area camera 4 with an upstream lens is provided as the sensor 4.
  • the lens is designed in the present example such that the entire sheet 1 to be inspected is detected, ie a distance between the CCD area camera 4 and the sheet transport plane 7 is adapted to the lens of the CCD area camera 4. But it is also possible capture several parts one after the other and combine them into a total picture.
  • the sheet 1 to be inspected is located in the optical axis of the lens of the CCD area camera 4.
  • Embodiment built a nig tardar l lter sensor acting as a trigger.
  • This sensor detects the front edge of the sheet 1 to be inspected and triggers the inspection process.
  • This sensor is arranged so as to be adjustable in transport direction T in order to align the position of the sheet in the case of sheet sizes of different sizes such that the inspection takes place approximately in the center of the lens of the CCD area scan camera 4.
  • An evaluation device is connected downstream of the CCD area camera 4.
  • a picture of the sheet 1 to be inspected is in a
  • Pixel is an exact location by specifying it
  • Reflectance value e.g. B. its gray value, a value Z determining this.
  • Each pixel P (X, Y, i i i Z) is thus given the values X, Y, Z in
  • the light reflected from the sheet 1 on the individual pixels P is correspondingly obtained by the CCD area camera 4 its amount converted into an electrical analog signal.
  • This analog signal is fed to an A / D converter, which forms the digital values Z therefrom.
  • the range of values is broken down into 0 to 255 discrete values. In this case, the value 0 means no remission hitting the corresponding pixel P of the i CCD area camera 4, while 255 corresponds to maximum remission.
  • the sheet 1 to be inspected has reflecting surfaces.
  • Light rays with weak scatter and noticeably directed portion are reflected.
  • Such areas can in particular be silver threads of a banknote or, for example, holograms or kinegrams. These reflective surfaces must be recognized as such.
  • a value range is now assigned to the values of the pixels P of such a sheet 1 in such a way that the occurring one
  • Range of values outside the reflective surfaces is clearly within the limits 0 and 255.
  • the sheet 1 is illuminated uniformly by means of the lighting device 3 in such a way that any surface located at any point on the sheet 1 and which has almost ideally reflecting properties, an incident light beam directly into the
  • CCD area camera 4 reflected. At least partially directed light beams are used for this.
  • the associated value Z of a pixel P takes i i
  • the value Z of a pixel P 230 to i 255 assigned to an i reflecting surface then reaches.

Abstract

L'invention vise à adapter la caisse aspirante au format de la feuille. A cet effet, il est prévu une chambre d'aspiration centrale de dimension inférieure au plus petit format d'une feuille à guider.
EP97920566A 1996-04-02 1997-04-01 Caisse aspirante pour guidage de feuille Expired - Lifetime EP0892754B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19613084A DE19613084A1 (de) 1996-04-02 1996-04-02 Saugkasten zum Führen von Bogen
DE19613084 1996-04-02
PCT/DE1997/000656 WO1997036813A1 (fr) 1996-04-02 1997-04-01 Caisse aspirante pour guidage de feuille

Publications (2)

Publication Number Publication Date
EP0892754A1 true EP0892754A1 (fr) 1999-01-27
EP0892754B1 EP0892754B1 (fr) 2000-01-19

Family

ID=7790213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97920566A Expired - Lifetime EP0892754B1 (fr) 1996-04-02 1997-04-01 Caisse aspirante pour guidage de feuille

Country Status (6)

Country Link
US (1) US6176482B1 (fr)
EP (1) EP0892754B1 (fr)
JP (1) JPH11509506A (fr)
DE (2) DE19613084A1 (fr)
ES (1) ES2142678T3 (fr)
WO (1) WO1997036813A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003205528B2 (en) * 2002-02-20 2007-02-15 Kba-Notasys Sa Device for conveying sheets that comprises a sheet directing element

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4616451B2 (ja) † 2000-09-22 2011-01-19 株式会社小森コーポレーション 印刷品質検査装置
JP4676070B2 (ja) * 2001-02-09 2011-04-27 株式会社小森コーポレーション 枚葉印刷機
ITBO20010411A1 (it) * 2001-06-29 2002-12-29 Gd Spa Metodo e dispositivo per il trasporto di elementi in foglio ripiegati
EP1304228B1 (fr) * 2001-10-17 2007-06-13 Seiko Epson Corporation Appareil de transport de support d'enregistrement et imprimante
JP3785981B2 (ja) * 2001-10-17 2006-06-14 セイコーエプソン株式会社 記録媒体搬送装置、該搬送装置を備えた記録装置、及び記録装置における記録媒体の吸引ユニット
JP4878104B2 (ja) * 2003-07-21 2012-02-15 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機を通じて枚葉紙を搬送するための方法および該方法を実施するための装置
ITVR20060185A1 (it) * 2006-12-01 2008-06-02 G M P S R L Dispositivo di controllo per macchina numeratrice adibita alla stampa di numerazioni progressive o regressive su banconote, biglietti della lotteria, carte valori in generale
EP2138437A1 (fr) 2008-06-27 2009-12-30 Kba-Giori S.A. Système d'inspection pour contrôler la qualité de feuilles imprimées
CN101850652B (zh) * 2009-03-19 2015-03-11 小森公司 薄片形件质量检查装置
EP2399745A1 (fr) 2010-06-25 2011-12-28 KBA-NotaSys SA Système d'inspection pour l'inspection en ligne de documents imprimés produits sur une presse d'impression de rotogravure
EP2524805A1 (fr) 2011-05-20 2012-11-21 KBA-NotaSys SA Système d'essuyage d'encre pour presse d'impression en creux
EP2524809A1 (fr) 2011-05-20 2012-11-21 KBA-NotaSys SA Ink wiping system for an intaglio printing press
US9656456B2 (en) 2011-08-22 2017-05-23 Windmoeller & Hoelscher Kg Machine and method for printing material webs
EP2748004B1 (fr) * 2011-08-22 2017-01-04 Windmöller & Hölscher KG Machine et procédé d'impression de bandes d'impression
EP2636527A1 (fr) 2012-03-09 2013-09-11 Kba-Notasys Sa Système d'essuyage d'encre d'une presse d'impression en creux et presse d'impression en creux le comprenant
EP2650131A1 (fr) 2012-04-10 2013-10-16 KBA-NotaSys SA Presse à imprimer avec chariot d'encrage mobile
EP2657021A1 (fr) 2012-04-24 2013-10-30 KBA-NotaSys SA Unité d'entraînement réglable d'une presse à imprimer et presse à imprimer, en particulier presse d'impression en creux la comprenant
EP2722179A1 (fr) 2012-10-18 2014-04-23 KBA-NotaSys SA Presse d'impression en héliogravure et procédé de surveillance de fonctionnement de celle-ci
EP2746049A1 (fr) 2012-12-20 2014-06-25 KBA-NotaSys SA Procédé de contrôle d'une impression taille-douce et gamme de contrôle à cette fin
EP2774759A1 (fr) 2013-03-07 2014-09-10 KBA-NotaSys SA Cylindre porte-forme d'une presse d'impression rotative à feuilles pour la production de billets de banque et de titres similaires
EP3398782A1 (fr) 2017-05-04 2018-11-07 KBA-NotaSys SA Système d'encrage pour encrer un cylindre d'impression en creux d'une presse d'impression en creux, presse d'impression en creux le comprenant et procédé d'encrage d'un tel cylindre d'impression en creux
DE102019124702A1 (de) * 2019-09-13 2021-03-18 Bundesdruckerei Gmbh Vorrichtung und verfahren zur erfassung eines holografischen merkmals

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US2572640A (en) * 1948-08-18 1951-10-23 Irving S Lovegrove Vacuum film holder
US3724940A (en) * 1970-12-07 1973-04-03 Ricoh Kk Electrophotographic copying apparatus with means for erasing marginal images
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IT1095199B (it) * 1978-06-06 1985-08-10 S F A Societa Di Fisica Applic Macchina per il controllo automatico di qualita'su banconote e cartevalori di fresca stampa
FR2476612A1 (fr) * 1980-02-27 1981-08-28 Rochette Cenpa Dispositif de convoyage sur courroies sans fin, de plaques, de bandes ou de feuilles de materiau
JPS60111572A (ja) * 1983-11-21 1985-06-18 Fuji Photo Film Co Ltd シ−ト状記録媒体走査装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003205528B2 (en) * 2002-02-20 2007-02-15 Kba-Notasys Sa Device for conveying sheets that comprises a sheet directing element

Also Published As

Publication number Publication date
US6176482B1 (en) 2001-01-23
EP0892754B1 (fr) 2000-01-19
DE59701042D1 (de) 2000-02-24
DE19613084A1 (de) 1997-10-09
JPH11509506A (ja) 1999-08-24
ES2142678T3 (es) 2000-04-16
WO1997036813A1 (fr) 1997-10-09

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