EP1464603A1 - Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems - Google Patents

Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems Download PDF

Info

Publication number
EP1464603A1
EP1464603A1 EP04075978A EP04075978A EP1464603A1 EP 1464603 A1 EP1464603 A1 EP 1464603A1 EP 04075978 A EP04075978 A EP 04075978A EP 04075978 A EP04075978 A EP 04075978A EP 1464603 A1 EP1464603 A1 EP 1464603A1
Authority
EP
European Patent Office
Prior art keywords
sheet
buffering member
sheets
processing system
endless
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Withdrawn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
EP04075978A
Other languages
English (en)
French (fr)
Inventor
Roger J.M. Peeters
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.)
Canon Production Printing Netherlands BV
Original Assignee
Oce Technologies BV
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 Oce Technologies BV filed Critical Oce Technologies BV
Priority to EP04075978A priority Critical patent/EP1464603A1/de
Publication of EP1464603A1 publication Critical patent/EP1464603A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/50—Piling apparatus of which the discharge point moves in accordance with the height to the pile
    • B65H29/51—Piling apparatus of which the discharge point moves in accordance with the height to the pile piling by collecting on the periphery of cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
    • B65H2404/539—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other
    • B65H2404/5391—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other adhesive properties
    • 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
    • B65H2511/40—Identification
    • B65H2511/414—Identification of mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed

Definitions

  • the present invention is related to a system for processing printed sheets.
  • the system may be a stand-alone system such as a finisher or may be part of an image reproduction system such as a printing or copying system.
  • the invention further relates to a method for controlling such a sheet processing system.
  • the print medium In order to reproduce images, it is generally known to feed a medium in sheet or web form through the image forming part of an image reproduction system such as a printing and/or copying system to form images of a marking substance thereon.
  • an image reproduction system such as a printing and/or copying system
  • the print medium In case the print medium is in web form, the print medium may be subsequently cut in to sheets.
  • the printed sheets may be conveyed to a sheet processing system.
  • the sheet processing system may be an integral part of the image reproduction system or may be a stand-alone system operating in-line with the image reproduction system.
  • the printed sheets are typically conveyed separately and in consecutive order to an input of such sheet processing system at the processing speed of the image reproduction system.
  • the printed sheets are conveyed consecutively at the processing speed of the sheet processing system along a predetermined path through the sheet processing system where they may be subjected to all kinds of finishing treatments.
  • the sheet processing system may be a stand-alone system operating offline. In the latter case a stack of printed sheets is usually offered to the sheet processing system for further processing. In operation, such sheet processing system retrieves sheets from the stack and conveys them consecutively at the processing speed of the system along a predetermined path through the sheet processing system where they may be subjected to all kinds of finishing treatments.
  • finishing treatments include but are not limited to cutting, punching, inverting, sorting, trimming, rotating, stapling and folding such as to obtain finished sheets, sets of finished sheets or booklets, which may be subsequently deposited at a sheet deposition station on a selected tray.
  • lowering the processing speed of the sheet processing system may also effect the processing capability of the entire image reproduction system as the processing speed of the sheet processing system should be at least as high as the processing speed of the image reproduction system. Therefore, gaining time to execute a finishing treatment by degrading the processing speed of the sheet processing system is not a desirable solution.
  • a sheet processing system which, in case a time-consuming finishing treatment has to be effectuated on a sheet or a set of sheets, temporarily stops conveyance of a succeeding sheet and places it in a waiting state on a buffer roller at least till the time-consuming finishing treatment is completed. Thereafter, the sheet which has been temporarily put in a waiting state is further conveyed in super-imposed relationship with the consecutive non-stopped sheet.
  • the buffer roller In order to put a sheet in and out of the waiting state, the buffer roller each time needs to be stopped and afterwards accelerated within the interval period between two succeeding sheets.
  • the repetitive stopping and acceleration of the buffer roller is a disturbing noise source and negatively affects the system's reliability.
  • the disclosed approach is not scaleable to high processing speeds as the interval period between two succeeding sheets becomes too small to enable timely and reliable stopping and acceleration of the buffer roller
  • a sheet processing system for feeding sheets successively along a supply path to a sheet deposition station where the sheets are collected, the sheet processing system having means for temporarily interrupting the supply of successive sheets to the sheet deposition station to enable processing of the sheets collected at the sheet deposition station, the means for temporarily interrupting the supply of successive sheets comprising:
  • the cycling period of the sheet buffering member is smaller than or equal to the interval between the arrival of the leading edge of a first sheet and the arrival of the leading edge of a second successive sheet at the endless outer surface of the sheet buffering member.
  • the cycling period of the sheet buffering member is smaller than the interval between the arrival of the leading edge of a first sheet and the arrival of the leading edge of a second successive sheet at the endless outer surface of the sheet buffering member.
  • the reliability of the transport can even be further improved when at least a portion of the endless outer surface of the sheet buffering member is composed of an adhesive material, said portion covering the entire circumference of the sheet buffering member.
  • the buffering member is a buffering roller
  • such portion is typically an annular portion.
  • the sheet processing system according to the present invention further comprises at least a first pressure member and a second pressure member, wherein the or each pressure member can be resiliently urged against the endless outer surface of the buffering member while any sheet assembled on the cycling buffering member is guided there-between.
  • the first, the second pressure member and any further pressure member are positioned such that in operation at any time at least one of the first, the second, or any further pressure member contacts the superimposed sheets assembled on the outer surface. Doing so is advantageous to provide a reliable paper transport on the buffering member. More preferably, the first, the second, and any further pressure member are rotatable.
  • a sheet processing system comprising:
  • a method for controlling a sheet processing system comprising:
  • a sheet processing system (1) according to an embodiment of the present invention is schematically depicted.
  • the sheet processing system may be a stand-alone system or may be an integral part of an image reproduction system such as e.g. a printing or copying system.
  • Sheet or sets of sheets (2) can be inputted and are fed consecutively along a predetermined path to a sheet deposition station (3), where they are deposited.
  • two predetermined paths are disclosed. When the sheets or set of sheets are controlled to follow predetermined path A, then they are fed without being subjected to a further finishing treatment at the processing speed of the sheet processing system to a sheet deposition station where they are flipped and deposited on a selected tray (8).
  • control means are provided enabling the sheet processing system to operate in the normal mode.
  • sheets are successively guided and fed using guiding and drive means including a continuously cycling buffering member (10) to an intermediate sheet deposition station (4) where a predetermined number of sheets is assembled in correspondence with the job definition.
  • the set of assembled sheets is aligned and stapled by a stapler (5).
  • a stapler As the stapling action requires more time than the interval period between two sheets successively fed along predetermined path B towards the stapling position, such action is considered to be a time-consuming action and therefore the sheet(s) immediately following the set of sheets to be stapled are buffered in order not to degrade the processing speed of the sheet processing system.
  • the sheet processing system is controlled to operate in a buffering mode wherein those sheets are temporarily buffered before forwarding them to the intermediate sheet deposition station.
  • the buffered sheet(s) together with the first consecutive sheet are fed to the intermediate sheet deposition station.
  • the stapled set of sheets (6) is fed further along predetermined path B to a sheet deposition station, where the set is flipped and deposited on a selected tray (9).
  • the trays (8)(9) are part of a flexible sheet deposition unit (7) for depositing sheets on a selected one of multiple trays facing a selected one of multiple outputs of the sheet processing system.
  • drive means and guide members should be provided such that each tray can be moved up and down such as to face an output of the sheet processing system and such that the distance between adjacent trays can be adjusted.
  • sheets produced in a "booklet mode” may be directed to a first sheet deposition station where stapled sets of sheets are deposited on a selected tray (9) while sheets produced in a "sheet mode” are directed to the other sheet deposition station where they are deposited on a selected tray (8).
  • the respective sheet deposition station may also be selected, instead of dependent on the finishing steps applied, e.g. single sheets versus booklets, dependent on format, e.g. A3 vs.
  • the print medium Before arriving at the sheet deposition unit, the print medium may be subjected to all kind of finishing treatments including but not limited to cutting, punching, inverting, sorting, stapling and folding such as to obtain finished sheets, sets of finished sheets or booklets.
  • the print medium is typically composed of paper, film, cardboard, label stock, plastic or textile.
  • the sheet deposition unit may form an integral part of the sheet processing system or may be a separate unit which can be put in-line with the sheet processing system.
  • the sheet processing system disclosed in fig.1 can be controlled to operate in a buffering mode.
  • the buffering mode sheets are temporarily buffered on a continuously cycling buffering member (10) before forwarding them to the intermediate sheet deposition station (4) in order to provide the time required to execute proper alignment and stapling of a previous set of sheets assembled on the intermediate tray (4) in correspondence with the job definition.
  • This buffering is executed without degrading the processing speed of the sheet processing system.
  • sheets arriving at the endless surface of the continuously cycling buffering member are assembled thereon in superimposed relationship till the control means control the sheet processing system to operate again in a mode different from buffering mode, e.g. the normal mode.
  • a mode different from buffering mode e.g. the normal mode.
  • a first sheet (21) is fed along predetermined path B to the endless surface (14) of the continuously cycling buffering member.
  • the sheet processing system is controlled by control means to operate in the buffering mode, the sheet (21) is guided along path B' instead of further following path B as can be seen in fig.2(b).
  • the control means comprise a switch (12) acting on the buffering member.
  • the switch is discussed in more detail with reference to fig.4. The switch is in a position such that the first sheet assembled on the buffering member is continuously cycled with a cycling period.
  • a second consecutive sheet (22) is fed along predetermined path B towards the endless outer surface of the buffering member.
  • Two rotatable pressure members (11) are provided, each of them being resiliently urged against the endless outer surface (14) of the buffering member such that any sheet assembled on the cycling buffering member is guided there-between.
  • the rotatable pressure members are positioned such that in operation at any time at least one of the rotatable pressure members contacts the sheets assembled on the buffering member.
  • the interval time between the arrival of the leading edge of the first sheet (21) at the endless outer surface and the arrival of leading edge of the second consecutive sheet (22) at the same position is known as the processing speed of the sheet processing system is known as well as the distance between the two consecutive sheets.
  • Use can be made of known position detection means to accurately determine the arrival of the sheets at the endless outer surface of the buffering member to determine the interval time between two consecutive sheets.
  • the data registered by the detection means may be used by the control means to slightly adapt the cycling period of the buffering member and/or the processing speed of the sheet processing system to compensate for possible synchronisation errors, being errors resulting in slight variations in the interval time between respective sheets guided along predetermined path B and/or B'.
  • Additional position detection means may be positioned along predetermined path B and B' to allow for a more accurate monitoring and compensation when required.
  • the cycling period of the buffering member is chosen dependent on the interval time between the two consecutive sheets.
  • the buffering member is driven such that when the leading edge of the consecutive sheet (22) arrives at the endless surface (14) of the sheet buffering member (10), simultaneously the leading edge of the buffered sheet (21) arrives at the same position.
  • the respective sheets are further subjected in superimposed relationship to the cycling motion of the buffering member.
  • the cycling period is chosen such that the leading edge of the second sheet (22) arrives at the endless surface of the buffering after the arrival of the leading edge of the first sheet. In the latter case, the respective sheets only partially overlap each other. Care should be taken that the overlap is sufficiently large to ensure that the complete covering of the endless outer surface of the sheet buffering member is avoided.
  • the configuration as depicted in fig.2 and 3 is such that the interval time between two consecutive sheets is smaller than or equal to the cycling period, assuming that the preceding sheet is cycled only once.
  • the cycling period is chosen such that the interval time is about an integer multiple of the cycling period.
  • Two sheets are now buffered on the endless surface of the buffering member. By doing so enough time is provided for executing the alignment and stapling of a preceding set of sheet.
  • the two buffered sheets may now be guided along predetermined path B towards the intermediate deposition location (4).
  • the buffering member is cycled such that the leading edge of the consecutive sheet (23) arrives simultaneously (fig 2(d)) or shortly after (fig.3) the leading edge of the preceding sheet (2).
  • FIG.4 an example of a sheet buffering member (10) having an endless outer surface (14) and a switch (12) acting thereon is schematically depicted.
  • the rotatable buffering member comprises 5 discs, positioned equidistant one with respect to another.
  • a silicone rubber belt is mounted on the second and the fourth disc.
  • a sheet processing system (1) according to an embodiment of the present invention is schematically depicted.
  • the sheet processing system may be a stand-alone system or may be an integral part of an image reproduction system such as e.g. a printing or copying system.
  • Sheets (2) are inputted consecutively at an input and are fed along a predetermined supply path C to an intermediate sheet deposition station (4) where a predetermined number of sheets is collected in correspondence with the job definition. Subsequently the set of assembled sheets is aligned and stapled by a stapler (5). The stapled set of sheets (6) is fed further to a sheet deposition station, where the set is flipped and deposited on a selected tray (9).
  • the tray (9) may be part of a flexible sheet deposition unit (7) for depositing sheets on a selected one of multiple trays facing the output of the sheet processing system.
  • the print medium Before arriving at the sheet deposition unit, the print medium may be subjected to all kind of finishing treatments including but not limited to cutting, punching, inverting, sorting, stapling and folding such as to obtain finished sheets, sets of finished sheets or booklets.
  • the sheet deposition unit may form an integral part of the sheet processing system or may be a separate unit which can be put in-line with the sheet processing system. When the stapling action requires more time than the interval period between two sheets successively fed along supply path C towards the stapling position, such action is considered to be a time-consuming action.
  • the sheet processing system is controlled such that the sheet(s) immediately following the set of sheets to be stapled are temporarily buffered in order not to degrade the processing speed of the sheet processing system.
  • at least the sheets which need to be buffered are directed along supply path D.
  • These sheets are temporarily buffered on a continuously cycling buffering member (10) before being forwarded to the intermediate sheet deposition station (4).
  • This buffering is executed without degrading the processing speed of the sheet processing system.
  • Sheets arriving at the endless surface of the continuously cycling buffering member are assembled thereon in superimposed relationship till the sheet processing system is controlled to release the assembled sheets from the surface of the sheet buffering member.
  • the released sheets are directed to the intermediate sheet deposition station (4) for further handling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP04075978A 2003-04-03 2004-03-31 Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems Withdrawn EP1464603A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04075978A EP1464603A1 (de) 2003-04-03 2004-03-31 Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03076006 2003-04-03
EP03076006 2003-04-03
EP04075978A EP1464603A1 (de) 2003-04-03 2004-03-31 Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems

Publications (1)

Publication Number Publication Date
EP1464603A1 true EP1464603A1 (de) 2004-10-06

Family

ID=32852242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04075978A Withdrawn EP1464603A1 (de) 2003-04-03 2004-03-31 Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems

Country Status (1)

Country Link
EP (1) EP1464603A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857390A1 (de) * 2006-05-15 2007-11-21 Hunkeler AG Sammelvorrichtung
EP2502862A1 (de) * 2011-03-24 2012-09-26 Hunkeler AG Verfahren und Vorrichtung zum Verarbeiten von Bogen unterschiedlichen Formats

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB953303A (en) * 1961-03-20 1964-03-25 West Virginia Pulp & Paper Co Sheet handling apparatus
FR2183417A5 (de) * 1972-05-05 1973-12-14 Holweg Const Mec
GB2030969A (en) * 1978-09-20 1980-04-16 Windmoeller & Hoelscher Apparatus for forming stacks from plastics film comprising an electrostatically charged stacking drum
US4974822A (en) * 1988-05-17 1990-12-04 Man Roland Druckmaschinen Ag Sheet product folding and folded product transport and handling apparatus, particularly printed products derived from a printing machine
JP2003002501A (ja) * 2001-06-18 2003-01-08 Canon Inc シート処理装置及びこれを備えた画像形成装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB953303A (en) * 1961-03-20 1964-03-25 West Virginia Pulp & Paper Co Sheet handling apparatus
FR2183417A5 (de) * 1972-05-05 1973-12-14 Holweg Const Mec
GB2030969A (en) * 1978-09-20 1980-04-16 Windmoeller & Hoelscher Apparatus for forming stacks from plastics film comprising an electrostatically charged stacking drum
US4974822A (en) * 1988-05-17 1990-12-04 Man Roland Druckmaschinen Ag Sheet product folding and folded product transport and handling apparatus, particularly printed products derived from a printing machine
JP2003002501A (ja) * 2001-06-18 2003-01-08 Canon Inc シート処理装置及びこれを備えた画像形成装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 05 12 May 2003 (2003-05-12) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857390A1 (de) * 2006-05-15 2007-11-21 Hunkeler AG Sammelvorrichtung
US7618040B2 (en) 2006-05-15 2009-11-17 Hunkeler Ag Gathering device
EP2502862A1 (de) * 2011-03-24 2012-09-26 Hunkeler AG Verfahren und Vorrichtung zum Verarbeiten von Bogen unterschiedlichen Formats
US9039003B2 (en) 2011-03-24 2015-05-26 Hunkeller Ag Method of, and apparatus for, processing sheets of different formats
US9073303B2 (en) 2011-03-24 2015-07-07 Hunkeler Ag Method of, and apparatus for, processing sheets of different formats

Similar Documents

Publication Publication Date Title
US6612571B2 (en) Sheet conveying device having multiple outputs
JP3879305B2 (ja) 画像形成装置および用紙束生成装置並びに画像形成装置を用いた用紙束の生成方法
JPH08240939A (ja) ツーアップ高速印刷システム
US5689795A (en) Sheet transfer apparatus with adaptive speed-up delay
US11801705B2 (en) Image forming system, image forming apparatus, and sheet processing device
JP2009113923A (ja) シート排出装置、シート処理装置、画像形成装置
JP2008062307A (ja) 断裁屑回収方法及びシート束断裁装置及び製本装置並びに画像形成装置
JP4203788B2 (ja) シート処理装置及びこれを備えた画像形成装置
JP2010195523A (ja) 用紙後処理装置及び画像形成装置
EP1464603A1 (de) Bogenbearbeitungssystem und Verfahren zur Steuerung eines solchen Systems
US5447303A (en) Sheet inverter apparatus
US20040251614A1 (en) Sheet processing system and method for controlling such system
JP2005254623A (ja) シート処理装置及びこれを備えた画像形成装置
US20070063424A1 (en) Sheet processing apparatus and sheet processing method
JP2000255880A (ja) 仕分け装置
JP2007176684A (ja) 用紙後処理装置
JPH11245538A (ja) 製本装置
JP2000063031A (ja) シート綴じ込み装置
US8936242B1 (en) Re-time sheet buffering system for digital print finishers
US10124977B2 (en) Sheet stacking apparatus and image forming system
JP3466132B2 (ja) 証明書発行装置
JPH11349191A (ja) シート搬送装置及び画像形成装置
EP4242147A1 (de) Förderer und bilderzeugungsvorrichtung
JP7240142B2 (ja) シート搬送装置、シート処理装置及び画像形成システム
JP3581494B2 (ja) シート材処理装置及び画像形成装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050406

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20061019