EP0554774A1 - Dispositif pour transporter un courant de feuilles se chevauchant - Google Patents

Dispositif pour transporter un courant de feuilles se chevauchant Download PDF

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Publication number
EP0554774A1
EP0554774A1 EP93101189A EP93101189A EP0554774A1 EP 0554774 A1 EP0554774 A1 EP 0554774A1 EP 93101189 A EP93101189 A EP 93101189A EP 93101189 A EP93101189 A EP 93101189A EP 0554774 A1 EP0554774 A1 EP 0554774A1
Authority
EP
European Patent Office
Prior art keywords
sheet
box
suction
pressure
vacuum
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
EP93101189A
Other languages
German (de)
English (en)
Other versions
EP0554774B1 (fr
Inventor
Ernst Stock
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0554774A1 publication Critical patent/EP0554774A1/fr
Application granted granted Critical
Publication of EP0554774B1 publication Critical patent/EP0554774B1/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
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction belts
    • 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
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/321—Suction belts integral in feed table

Definitions

  • the invention relates to a device for conveying a shingled sheet stream to a sheet processing machine, with a conveyor table which is provided with endlessly surrounding, drivable conveyor belts, with a side alignment device for lateral alignment of the foremost sheet of the sheet stream, with a bottom the conveyor table arranged suction box, which is connected via suction openings in the conveyor table to the underside of the conveyor belts, which are provided with continuous suction holes, the suction box consisting of a vacuum box located in the transfer area of the first arc of the sheet stream and one extending from the vacuum box to the transfer area of the conveyor table There is suction pressure box, and vacuum box and suction pressure box of suction pressure sources can be pressurized independently of one another.
  • the area sucked onto the conveyor belts by vacuum is only a strip area along the front edge of the sheet.
  • the holding force acting on the foremost sheet can thus be reduced to such an extent that this sheet can easily be aligned on the side.
  • the last arc of the arc stream no longer has a subsequent arc that scales it.
  • the last arc is therefore not only in one Strip area of its front edge sucked from the vacuum onto the conveyor belts, but its entire sheet area located in the area of the vacuum box is available for suction.
  • this means that the holding force is still so high, even with reduced negative pressure or when the negative pressure is completely switched off, that no unimpeded and perfect side alignment is possible.
  • the holding force is too high, even when the vacuum supply is switched off completely, because the sheet largely closes the suction holes in the conveyor belts and therefore no or insufficiently rapid pressure equalization in the vacuum box can take place.
  • the object of the invention is therefore to provide a device of the type mentioned at the outset, which enables a supply of flawlessly side-aligned sheets, in particular also the last sheet at the end of a sheet stream, to a sheet processing machine.
  • This object is achieved in that the supply of the last sheet of the sheet current can be detected and a corresponding signal can be fed to a control unit and by the control unit after the subsequent expiry of a number of work cycles less than the number of sheets on the conveyor table corresponding to the number of work cycles, the vacuum source of the vacuum box can be put out of operation and an overpressure source can be put into operation, the vacuum box being pressurized by the overpressure source.
  • This design immediately eliminates the holding force acting on the last arc of the arc stream if this arc is the only remaining arc of the arc stream and is to be aligned.
  • the overpressure source ensures immediate vacuum reduction, so that the sheet is completely free of holding force in the shortest possible time and can be aligned to the side unhindered.
  • a subsequent shutdown of the pressurization by the pressure source can either in that the overpressure source can be put out of operation, for example when atmospheric pressure in the vacuum box is reached, or in that the overpressure source can be put out of operation after a certain operating time of, for example, about one second. This ensures that the vacuum in the vacuum box is reduced in a very short time, but that there is no overpressure in the vacuum box that would cause the sheet to be lifted off the conveyor belts.
  • the vacuum box can be subjected to a vacuum of higher levels than the suction pressure box.
  • the end of the sheet current can be detected by a sensor and a corresponding signal can be fed to the control unit.
  • the sensor is preferably arranged in the takeover area of the conveyor table.
  • the senor is a sensor that detects an interruption of the arc current, in particular an optical sensor.
  • the pressure source can be a pressure pump. If the overpressure pump is a permanently pump, the pressure outlet of which can be connected to the vacuum box via a valve, then the vacuum box can be pressurized very quickly, since the overpressure permanently generated by the pump is already available and only via the valve must be connected to the vacuum box.
  • valve is an electromagnetic valve which can be controlled by the control unit.
  • the sheet conveyor device shown has a conveyor table 1, which is provided with endless conveyor belts 2.
  • the conveyor belts 2 are guided in the conveying direction 3 over the table surface 14 of the conveyor table 1 and are deflected at the transfer end 4 and at the transfer end 5 of the conveyor table 1 by deflection rollers 6 to the underside of the conveyor table 1.
  • the conveyor belts 2 are always kept taut by means of tensioning rollers 7 and 8 arranged below the conveyor table 1.
  • the deflection roller 6 at the takeover end 4 is also the drive roller for the conveyor belts 2.
  • a suction box 13 which extends over the entire length of the conveying table 1 in the conveying direction 3, is arranged under the conveying table 1.
  • This suction box 13 consists of two separate parts, namely one Vacuum box 9, which is located in the transfer area of the first sheet 10 of the sheet stream 11 conveyed on the conveying table 1.
  • a suction pressure box 12 connects to the vacuum box 9 and extends to the takeover area 4 of the conveyor table 1.
  • a plurality of continuous suction openings 15 are formed in the table surface 14, which connect the underside of the conveyor belts 2 to the vacuum box 9 or suction pressure box 12.
  • the conveyor belts 2 are evenly distributed over their length with likewise continuous suction holes 16, the sheets of the sheet stream 11 are held in contact with the conveyor belts 2 by the negative pressure prevailing in the suction box 13 and are thus carried along by the rotating driven conveyor belts without slipping.
  • the suction pressure box 12 is continuously subjected to a vacuum from a vacuum source 17 during operation.
  • the vacuum box 9 is also pressurized by a vacuum source 18 during operation. However, in the work cycle of the sheet processing machine there is a change between a higher and a lower negative pressure than the negative pressure prevailing in the suction pressure box 12.
  • a sensor 19 arranged in the take-over area 4 of the conveying table 1 detects that the sheet flow 11 has ended and no further sheet follows, it emits a corresponding signal which is fed to a control unit 21 via the line 20.
  • the normally closed solenoid valve 24 is arranged in a pressure line 25 of a permanently operated positive pressure source 26, so that when the solenoid valve 24 is activated the pressure immediately arrives in the vacuum box 9 and reduces the vacuum built up there by the vacuum source 18.
  • the solenoid valve 24 is only activated for a certain operating time of about one second, so that the negative pressure is reduced until atmospheric pressure is reached, but no positive pressure can be built up in the negative pressure box 9.
  • the specific number of work cycles, after which the negative pressure source 9 is put out of operation and the positive pressure source 26 is put into operation corresponds to a number which is a number less by one work cycle than the number of sheets of the sheet stream 11 located on the conveying table 1.
  • the number of sheets of the sheet stream 11 located between the sensor 19 and the transfer end 5 is a fixed, predetermined number, this means that the vacuum is switched off and the vacuum box 9 is pressurized at a time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
EP93101189A 1992-02-07 1993-01-27 Dispositif pour transporter un courant de feuilles se chevauchant Expired - Lifetime EP0554774B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4203511 1992-02-07
DE4203511A DE4203511A1 (de) 1992-02-07 1992-02-07 Vorrichtung zum foerdern eines geschuppten bogenstroms zu einer bogen verarbeitenden maschine

Publications (2)

Publication Number Publication Date
EP0554774A1 true EP0554774A1 (fr) 1993-08-11
EP0554774B1 EP0554774B1 (fr) 1996-04-24

Family

ID=6451156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101189A Expired - Lifetime EP0554774B1 (fr) 1992-02-07 1993-01-27 Dispositif pour transporter un courant de feuilles se chevauchant

Country Status (4)

Country Link
US (1) US5288067A (fr)
EP (1) EP0554774B1 (fr)
JP (1) JP2612139B2 (fr)
DE (2) DE4203511A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680908A1 (fr) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour adapter la dépression dans une table de guidage d'une bande sous vide d'un dispositif d'alimentation en feuilles
EP0884259A2 (fr) * 1997-06-12 1998-12-16 MAN Roland Druckmaschinen AG Table de marge
EP1090863A2 (fr) * 1999-10-06 2001-04-11 MAN Roland Druckmaschinen AG Table de marge
EP1582490A1 (fr) * 2004-03-30 2005-10-05 Koenig & Bauer Aktiengesellschaft Dispositif d'alimentation d'un courant de feuilles se chevauchant
CN101683940B (zh) * 2008-09-22 2015-04-29 海德堡印刷机械股份公司 用于折叠页张的方法和装置
WO2016174224A1 (fr) * 2015-04-30 2016-11-03 Koenig & Bauer Ag Dispositif de transport permettant le transport séquentiel de substrats individuels en forme de feuille au moyen d'une bande aspirante
DE102018133450A1 (de) * 2018-12-21 2020-06-25 Bdt Media Automation Gmbh Vorrichtung zum Ausrichten der in einer Transportrichtung gesehenen Vorderkante von entlang eines Transportpfads bewegbaren flachen, flexiblen Objekten

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413089C2 (de) * 1994-04-15 1997-02-13 Roland Man Druckmasch Verfahren und Vorrichtung zum unterschuppten Zuführen von bogenförmigen Bedruckstoffen an eine Druckmaschine
DE4416289C2 (de) * 1994-05-07 2003-06-05 Heidelberger Druckmasch Ag Vorrichtung zum Fördern eines geschuppten Bogenstromes
DE9410970U1 (de) * 1994-07-12 1994-10-27 Ostma Maschinenbau GmbH, 53909 Zülpich Anlage zum Einstapeln von mit nicht lagefixiertem Gut gefüllten Verpackungsbeuteln in einen Verpackungsbehälter
DE4447723B4 (de) * 1994-08-23 2005-07-07 Ltg Lufttechnische Gmbh Vorrichtung zum Zuführen oder Abführen von tafelförmigen Gütern
US5492316A (en) * 1994-09-20 1996-02-20 Bill McFarland Method and apparatus for opening signature sheets
DE4442629C2 (de) * 1994-12-01 1998-05-07 Heidelberger Druckmasch Ag Saugbändertisch
US5921544A (en) * 1995-11-30 1999-07-13 Xerox Corporation Acquisition levitation transport device
DE19616714A1 (de) * 1996-04-26 1997-11-06 Heidelberger Druckmasch Ag Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu einer bogenverarbeitenden Maschine
DE19618870A1 (de) * 1996-05-10 1997-11-13 Heidelberger Druckmasch Ag Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu einer bogenverarbeitenden Maschine
DK1063187T3 (da) * 1999-06-23 2004-01-19 Ferag Ag Indretning til udtagning af flagestrømsdele fra en flagestrøm
US6585263B1 (en) * 2000-02-02 2003-07-01 Heidelberger Druckmaschinen Ag Deceleration drum assembly containing air guides
DE10213705C5 (de) * 2001-04-26 2017-01-05 Heidelberger Druckmaschinen Ag Vorrichtung zum Fördern eines Bogenstroms von einem Bogenstapel zu einer bogenverarbeitenden Maschine
DE10229322A1 (de) * 2002-06-29 2004-01-15 Kolbus Gmbh & Co. Kg Vorrichtung zum Vereinzeln eines Schuppenstroms von Druckprodukten in eine Folge beabstandeter Druckprodukte
US6755411B2 (en) * 2002-10-25 2004-06-29 Pitney Bowes Inc. Envelope transport module with vacuum ports for use in an envelope inserting machine
DE102004003509B4 (de) * 2003-02-21 2019-04-25 Heidelberger Druckmaschinen Ag Vorrichtung zum Fördern von Bogen
ATE395286T1 (de) * 2003-04-02 2008-05-15 Ferag Ag Vorrichtung zur erstellung eines schuppenstromes von flachen gegenständen
GB0511299D0 (en) * 2005-06-03 2005-07-13 Scan Coin Ind Ab Coin conveying apparatus
DE102005057361A1 (de) * 2005-12-01 2007-06-06 Koenig & Bauer Ag Einrichtung zum Fördern eines unterlappten Bogenstroms
DE102008048286A1 (de) * 2008-09-22 2010-03-25 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zum Falzen von Bogen
CN102602722B (zh) * 2011-01-19 2015-10-28 海德堡印刷机械股份公司 吸带台
CN102785954B (zh) * 2012-07-30 2015-06-17 天津长荣印刷设备股份有限公司 一种托料装置及其工作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1103293A (en) * 1964-07-01 1968-02-14 Harris Intertype Corp Improvements in or relating to sheet feeding apparatus
FR2465597A1 (fr) * 1979-09-24 1981-03-27 Mccorquodale Mach Syst Procede et appareil pour faire avancer des feuilles ou une bande en vue d'y effectuer des impressions
EP0134526A2 (fr) * 1983-09-02 1985-03-20 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Procédé et dispositif d'alimentation repérée en feuilles dans une machine d'impression
DE3838078A1 (de) * 1988-11-10 1989-06-01 Mabeg Maschinenbau Gmbh Nachf Vorrichtung zum foerdern eines insbesondere geschuppten stroms von bogen
DE9004967U1 (de) * 1990-04-26 1990-06-28 Koenig & Bauer AG, 8700 Würzburg Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US4139190A (en) * 1975-06-13 1979-02-13 Pitney-Bowes, Inc. Feeding and shingling apparatus
DD123800A1 (fr) * 1975-06-25 1977-01-19
DE3047468C2 (de) * 1980-12-17 1983-07-07 Dr. Otto C. Strecker Kg, 6102 Pfungstadt Vorrichtung zum Stapeln überlappt angeförderter Bogen
DE3138481C2 (de) * 1981-09-28 1984-05-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Fördern eines geschuppten Stroms von Papierbogen
US4765451A (en) * 1984-05-14 1988-08-23 International Paper Box Machine Co., Inc. Apparatus and method for segregating counted slugs of flats
DE3442135A1 (de) * 1984-11-17 1986-05-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren zum ausrichten von bogen
DE3860529D1 (de) * 1988-01-13 1990-10-04 Ferag Ag Verfahren und vorrichtung zum veraendern des ueberlappungsgrades von in einem schuppenstrom gefoerderten druckereiprodukten.
DE4013302A1 (de) * 1990-04-26 1991-10-31 Koenig & Bauer Ag Vorrichtung zum foerdern eines insbesondere geschuppten stroms von bogen
JP2601959B2 (ja) * 1990-10-15 1997-04-23 富士写真フイルム株式会社 シート搬送区分装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1103293A (en) * 1964-07-01 1968-02-14 Harris Intertype Corp Improvements in or relating to sheet feeding apparatus
FR2465597A1 (fr) * 1979-09-24 1981-03-27 Mccorquodale Mach Syst Procede et appareil pour faire avancer des feuilles ou une bande en vue d'y effectuer des impressions
EP0134526A2 (fr) * 1983-09-02 1985-03-20 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Procédé et dispositif d'alimentation repérée en feuilles dans une machine d'impression
DE3838078A1 (de) * 1988-11-10 1989-06-01 Mabeg Maschinenbau Gmbh Nachf Vorrichtung zum foerdern eines insbesondere geschuppten stroms von bogen
DE9004967U1 (de) * 1990-04-26 1990-06-28 Koenig & Bauer AG, 8700 Würzburg Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LAPIS Nr. 278, Juni 1987, NEW YORK US Seite 403 'Tree Chamber vacuum transport' *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680908A1 (fr) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour adapter la dépression dans une table de guidage d'une bande sous vide d'un dispositif d'alimentation en feuilles
US5697606A (en) * 1994-05-07 1997-12-16 Heidelberger Druckmaschinen Ag Device for adapting negative pressure in a suction belt feed table of a sheet feeder to varying operating conditions
EP0884259A2 (fr) * 1997-06-12 1998-12-16 MAN Roland Druckmaschinen AG Table de marge
EP0884259A3 (fr) * 1997-06-12 1999-04-14 MAN Roland Druckmaschinen AG Table de marge
EP1090863A2 (fr) * 1999-10-06 2001-04-11 MAN Roland Druckmaschinen AG Table de marge
EP1090863A3 (fr) * 1999-10-06 2002-05-08 MAN Roland Druckmaschinen AG Table de marge
EP1582490A1 (fr) * 2004-03-30 2005-10-05 Koenig & Bauer Aktiengesellschaft Dispositif d'alimentation d'un courant de feuilles se chevauchant
US7401777B2 (en) 2004-03-30 2008-07-22 Koenig & Bauer Ag Apparatus for supplying a shingled or overlapping sheet stream
CN101683940B (zh) * 2008-09-22 2015-04-29 海德堡印刷机械股份公司 用于折叠页张的方法和装置
WO2016174224A1 (fr) * 2015-04-30 2016-11-03 Koenig & Bauer Ag Dispositif de transport permettant le transport séquentiel de substrats individuels en forme de feuille au moyen d'une bande aspirante
DE102018133450A1 (de) * 2018-12-21 2020-06-25 Bdt Media Automation Gmbh Vorrichtung zum Ausrichten der in einer Transportrichtung gesehenen Vorderkante von entlang eines Transportpfads bewegbaren flachen, flexiblen Objekten

Also Published As

Publication number Publication date
JP2612139B2 (ja) 1997-05-21
US5288067A (en) 1994-02-22
DE59302301D1 (de) 1996-05-30
EP0554774B1 (fr) 1996-04-24
DE4203511A1 (de) 1993-08-12
JPH069132A (ja) 1994-01-18

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