EP1127818A3 - Device for separating a top most sheet from a supply stack by means of air blowing means - Google Patents

Device for separating a top most sheet from a supply stack by means of air blowing means Download PDF

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Publication number
EP1127818A3
EP1127818A3 EP01101676A EP01101676A EP1127818A3 EP 1127818 A3 EP1127818 A3 EP 1127818A3 EP 01101676 A EP01101676 A EP 01101676A EP 01101676 A EP01101676 A EP 01101676A EP 1127818 A3 EP1127818 A3 EP 1127818A3
Authority
EP
European Patent Office
Prior art keywords
sheet
air
stack
blowing means
separating
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.)
Withdrawn
Application number
EP01101676A
Other languages
German (de)
French (fr)
Other versions
EP1127818A2 (en
Inventor
Ralf Allner
Thomas Biber
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.)
Eastman Kodak Co
Original Assignee
NexPress Solutions LLC
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 NexPress Solutions LLC filed Critical NexPress Solutions LLC
Publication of EP1127818A2 publication Critical patent/EP1127818A2/en
Publication of EP1127818A3 publication Critical patent/EP1127818A3/en
Withdrawn legal-status Critical Current

Links

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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42324—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of the 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
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Vorrichtung (1) zum Separieren eines obersten Blattes (S1) von einem Vorratsstapel (S) mit Luftblasmitteln (3.1;3.2) wobei Luftblasmittel (3.1) zum Auffächern von mehreren Blättern eines oberen Blattstapelbereiches (SR) und Luftblasmittel (3.2) zum Trennen des obersten Blattes (S1) und Zurückhalten eines dem obersten Blatt nachfolgenden, anhaftenden Blattes (S2) stromabwärts vor dem Vorratsstapel und quer zu einer Blatt-Transportbahn (42) angeordnet sind und entgegen einer Blatt-Transportrichtung (T) auf den oberen Bereich des Blattstapels einwirken, der mittels einer Hubeinrichtung (5) auf eine vorbestimmte gleiche Höhenlage positionierbar ist, wobei mittels der von einer Druckluftquelle (6) gespeisten Luftblasmittel (3.1;3.2) mit mindestens einer im Bereich einer Mittellinie (Y;Z) des Stapels (S) und der Transportbahn (42) angeordneten Luftdüse (31) sowie mit mehreren beidseitig der Mittellinie angeordneten Luftdüsen (32) Luftstrahlen mit unterschiedlichen Drücken, Ausrichtungen und Durchmessern erzeugbar sind, und wobei ein von einer Hochdruck-Luftquelle (7) gespeistes zusätzliches, mehrere Luftdüsen (D1,D1';D2,D2') aufweisendes Luftblasmittel (3.3) im Bereich der Mittellinie (Y;Z) des Stapels (S) und der Transportbahn (42) angeordnet ist, mittels dem Luftstrahlen (ST) mit einem hohen Luftüberdruck und geringem Durchmesser erzeugbar sind, die einerseits das Trennen des obersten Blattes (S1) vom Stapel sowie das Zurückhalten des dem obersten Blatt nachfolgenden, anhaftenden Blattes (S2) unterstützen und andererseits der Unterstützung des Auffächerns der Blätter im oberen Bereich des Blattstapels dienen.

Figure 00000001
Device (1) for separating an uppermost sheet (S1) from a supply stack (S) with air-blowing means (3.1; 3.2) whereby air-blowing means (3.1) for fanning out several sheets of an upper sheet-stack area (SR) and air-blowing means (3.2) for separating the uppermost Sheet (S1) and retention of an adhering sheet (S2) following the uppermost sheet are arranged downstream in front of the supply stack and transversely to a sheet transport path (42) and act against the sheet transport direction (T) on the upper region of the sheet stack, which can be positioned by means of a lifting device (5) to a predetermined same altitude, whereby by means of the air blowing means (3.1; 3.2) fed by a compressed air source (6) with at least one in the region of a center line (Y; Z) of the stack (S) and the Transport path (42) arranged air nozzle (31) and with several air nozzles (32) arranged on both sides of the center line, air jets with different pressures, alignment gene and diameters can be generated, and wherein an additional, several air nozzles (D1, D1 '; D2, D2') fed by a high-pressure air source (7) has air blowing agent (3.3) in the region of the center line (Y; Z) of the stack ( S) and the transport path (42) is arranged, by means of which air jets (ST) with a high air pressure and small diameter can be generated, which on the one hand the separation of the top sheet (S1) from the stack and the retention of the adhering sheet following the top sheet (S2) support and on the other hand to support the fanning of the sheets in the upper region of the sheet stack.
Figure 00000001
EP01101676A 2000-02-25 2001-01-30 Device for separating a top most sheet from a supply stack by means of air blowing means Withdrawn EP1127818A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000108909 DE10008909B4 (en) 2000-02-25 2000-02-25 Apparatus for separating a topmost sheet from a supply stack by means of air blowing means
DE10008909 2000-02-25

Publications (2)

Publication Number Publication Date
EP1127818A2 EP1127818A2 (en) 2001-08-29
EP1127818A3 true EP1127818A3 (en) 2003-01-02

Family

ID=7632407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101676A Withdrawn EP1127818A3 (en) 2000-02-25 2001-01-30 Device for separating a top most sheet from a supply stack by means of air blowing means

Country Status (3)

Country Link
EP (1) EP1127818A3 (en)
JP (1) JP4584475B2 (en)
DE (1) DE10008909B4 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7007944B1 (en) * 2000-10-14 2006-03-07 Eastman Kodak Company Pulsed airknife control for a vacuum corrugated feed supply
US7458570B2 (en) * 2004-09-13 2008-12-02 Ricoh Printing Systems, Ltd. Sheet-supplying device
DE102005021189A1 (en) * 2005-05-03 2006-11-16 Eastman Kodak Co. Stacker for printer feeders has vertical guide rod which slides along horizontal base rail to adjust width available for different sheet formats, rod being removed by swiveling to accommodate very large format sheets
JP4760309B2 (en) * 2005-11-02 2011-08-31 富士ゼロックス株式会社 Sheet supply apparatus and image forming apparatus
JP4561861B2 (en) * 2008-04-04 2010-10-13 富士ゼロックス株式会社 Sheet supply apparatus and image forming apparatus
CN105173802B (en) * 2015-09-30 2017-06-09 广州联科自动化设备有限公司 Flexible Teflon cloth separating machine structure
JP7325922B2 (en) * 2017-05-09 2023-08-15 コニカミノルタ株式会社 Paper feeder and image forming device
CN114620281B (en) * 2022-04-13 2024-03-01 浏阳市颐和隆烟花集团有限公司 Enclose and sign paper mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184672A (en) * 1976-10-05 1980-01-22 H.T.B. Limited Control means for the supply of operating mediums and sheet feeding machines having the same
US4699369A (en) * 1986-06-27 1987-10-13 Xerox Corporation Front air knife improvement for a top vacuum corrugation feeder
EP0453835A2 (en) * 1990-04-27 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-feeder for a machine manufacturing those sheets
EP0612680A1 (en) * 1993-02-25 1994-08-31 Eastman Kodak Company Receiver sheet supply and feed apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2646332B2 (en) * 1993-10-13 1997-08-27 株式会社エスケイセールス Automatic printed matter supply device
JPH09118446A (en) * 1995-08-10 1997-05-06 Eastman Kodak Co Device to facilitate handling of sheet with tab in top feeding type suction type corrugated feeder
JPH11334912A (en) * 1998-05-26 1999-12-07 Nok Corp Separation device for sheet-like part

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184672A (en) * 1976-10-05 1980-01-22 H.T.B. Limited Control means for the supply of operating mediums and sheet feeding machines having the same
US4699369A (en) * 1986-06-27 1987-10-13 Xerox Corporation Front air knife improvement for a top vacuum corrugation feeder
EP0453835A2 (en) * 1990-04-27 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-feeder for a machine manufacturing those sheets
EP0612680A1 (en) * 1993-02-25 1994-08-31 Eastman Kodak Company Receiver sheet supply and feed apparatus

Also Published As

Publication number Publication date
EP1127818A2 (en) 2001-08-29
DE10008909A1 (en) 2001-08-30
JP2001287844A (en) 2001-10-16
DE10008909B4 (en) 2011-05-12
JP4584475B2 (en) 2010-11-24

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