EP1584583B1 - Verfahren und Vorrichtung zum Zuführen von Papier - Google Patents

Verfahren und Vorrichtung zum Zuführen von Papier Download PDF

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Publication number
EP1584583B1
EP1584583B1 EP05007463A EP05007463A EP1584583B1 EP 1584583 B1 EP1584583 B1 EP 1584583B1 EP 05007463 A EP05007463 A EP 05007463A EP 05007463 A EP05007463 A EP 05007463A EP 1584583 B1 EP1584583 B1 EP 1584583B1
Authority
EP
European Patent Office
Prior art keywords
paper sheet
stack
suction belt
paper
bottommost
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.)
Not-in-force
Application number
EP05007463A
Other languages
English (en)
French (fr)
Other versions
EP1584583A2 (de
EP1584583A3 (de
Inventor
Tadashi Yano
Yuichi Sato
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.)
Sanwa Kako Co Ltd
Original Assignee
Sanwa Kako Co Ltd
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 Sanwa Kako Co Ltd filed Critical Sanwa Kako Co Ltd
Publication of EP1584583A2 publication Critical patent/EP1584583A2/de
Publication of EP1584583A3 publication Critical patent/EP1584583A3/de
Application granted granted Critical
Publication of EP1584583B1 publication Critical patent/EP1584583B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B65H3/126—Suction bands or belts separating from the bottom of 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
    • B65H3/00—Separating articles from piles
    • B65H3/34—Article-retaining devices controlling the release of the articles to the separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device

Definitions

  • the present invention relates to an improved method with regard to a so-called bottom feeder in which a paper sheet located bottommost in a stack of paper sheets is extracted one by one and is fed to a succeeding processing step and a paper feeding apparatus used for the same.
  • Japanese Patent Kokai No. 61-114937 has proposed a bottom feeder for feeding stacked sheets successively from the bottom, in which a center guide for stopping the bottom end of the front portion of the stacked sheets is provided and a gate for allowing a sheet to pass through is formed below the back guide for guiding the rear side of the sheet while the sheet located bottommost is released from the stopping by the center guide to drop downward.
  • Japanese Patent Kokai No. 9-194058 has proposed a bottom feeder which includes a laminated sheet held between a front guide and a back gate and a suction box for attracting the bottom face of a sheet located bottommost of the laminated sheets and making it move once backward and then forward in order to feed successively the bottommost sheet, wherein the suction box has an absorbing portion on the top face facing the sheet and a feeding roller is provided such that a part of it is protruded upward from the top face.
  • the surface is formed of a material having a high rigidity, for example, ceramic in order to improve this disadvantage, the contact area between the paper sheet and the roller decreases so that a sufficient friction force cannot be obtained.
  • a rubber roll having a low surface rigidity it is unavoidable to use a rubber roll having a low surface rigidity to flatten the roll surface with a load so that the contact area increases to ensure a specified friction force.
  • the next-coming paper sheet is stopped from coming into the rollers because, when the next-coming paper sheet comes into the roller portion immediately after the rear end portion of a paper sheet located on the bottommost of a stack of paper sheets passes the feeding roller, it makes contact with the rear end of the bottommost portion of the next-coming paper sheet or makes contact with the feeding roller so that it is given a flow or part of printed portion is eliminated or the surface of the rubber roll is worn due to erasing phenomenon.
  • GB 1 409 607 A discloses a paper sheet take-off device for a printing or copying machine wherein the paper sheets are removed individually from the bottom of a stack of paper sheets.
  • the device comprises a front guide, a back guide which is not described but necessarily must be present, a receiving pad and suction means for removing the bottommost sheet from the stack.
  • the container for the paper sheets comprises an aperture through which the sheets are removed individually by means of a rotatable suction roller and a plurality of fingers for supporting the stack of paper sheets in the area of the aperture which are swinging successively in one direction to move the lower face of the stack away from the suction roller, and in the opposite direction to allow the lower face of the paper stack to come into contact with the suction roller, wherein the swinging movement of the fingers is in synchronism with the rotation of the suction roller.
  • an object of the present invention is to provide a bottom feeder capable of suppressing reduction of the accuracy due to wear of the roll accompanied by a rubber roll, occurrence of flaw on the surface of the sheet, increase of maintenance cost accompanied by wear of the roll and rise of manufacturing cost due to complicacy of the apparatus.
  • the inventors of the present invention have found out that the object can be achieved by using a combination of a suction belt which attracts and feeds the bottom face of a paper sheet and a lift table provided with a cam, when extracting a paper sheet one by one from the bottommost portion of a stack of paper sheets, and have accomplished the present invention based on such a knowledge.
  • a paper sheet feeding apparatus comprising:
  • the bottommost paper sheet is fed as attracted to the suction belt, no relative slippage occurs between the paper sheet and the suction belt and until the suction belt stops at a specified position, the subsequent paper sheets to the bottommost paper sheet are supported by a lift table so that they are kept from making contact with the bottommost paper.
  • FIG. 1 is a cross sectional side view of a first embodiment of the present invention.
  • FIG. 2 is a plan view thereof.
  • FIG. 3 is a partial enlargement of FIG. 1 .
  • FIG. 4 is a cross sectional view with a partial perspective view for explaining the paper sheet extracting mechanism of the present invention.
  • the front end portion of a stack of paper sheets 1 is supported by a front guide 2 and the rear end portion thereof is supported by a back gate 3.
  • This front guide 2 is bent to the rear side to form a receiving pawl 4.
  • the receiving pawl 4 supports the bottommost paper sheet 1" to prevent it from falling down.
  • the bottom end of the back gate 3 is disposed below the bottom end of the front guide 2 and, consequently, the rear end portion of the stack of paper sheets 1 is kept below the front end portion.
  • the rear end portion of the paper sheet 1' is supported by the top face of a plurality of suction belts 5 (four in this example) and suction holes 6 are made in the suction belt 5.
  • a suction box 7 having a suction hole 7' is provided below the suction belt 5 to support the weight of the stack of paper sheets 1 and the suction belt 5.
  • the suction belt 5 is advanced forward and backward by rotation of a drive pulley 8 and a driven pulley 9.
  • an endless toothed belt is used and meshes with teeth on the surfaces of the drive pulley 8 and the driven pulley 9 in order to prevent a slippage between the drive pulley 8 and the suction belt 5.
  • the drive pulley 8 is rotatably supported by a bearing 10 and connected to a servo motor 12 through a coupling 11.
  • the suction box 7 is connected to a suction blower 14 through a duct 13 in order to maintain the interior of the suction box 7 at a negative pressure.
  • a suction blower 14 is connected to a suction blower 14 through a duct 13 in order to maintain the interior of the suction box 7 at a negative pressure.
  • a plurality of lift tables 15 are provided between the suction belts 5 (three in this example).
  • This lift table 15 repeats a lifting operation in which the top face 18 of the lift table 15 is raised above the top face of the suction belt or descended below corresponding to the rotation of a cam 17 around a supporting point 16 as referred to FIG. 4 .
  • the bottom portion of the lift table 15 keeps a rolling contact with the cam 17 on which a cam follower 19 is mounted.
  • the cam 17 is rotated and driven by a motor 21 which rotates continuously in a single direction at a specified velocity through a drive shaft 20.
  • FIGS. 5 to 9 are side views for explaining the operation of the apparatus of the present invention.
  • the suction blower 14 is started and a paper sheet on the bottommost layer is sucked by the suction belt 5 through the duct 13, the suction box 7 and the suction holes 6 in the suction belt 5.
  • the suction holes 6 in the suction belt 5 are provided only in part of the entire circumference of the belt (two positions in this example) so that the paper sheet is attracted by only a portion having the suction holes.
  • the drive pulley 8 is rotated by the servo motor 12 so as to drive the suction belt 5 in the direction of the arrow a and consequently, the sucked paper sheet 1' is retracted backward (rightward in the Figure).
  • the front end portion of this paper sheet 1' is disengaged from the receiving pawl 4 and drops on an under guide plate 23.
  • the servo motor 12 is stopped to stop the retraction of the paper sheet 1'.
  • the top face of the lift table 15 is located below the top face of the suction belt 5.
  • the suction belt 5 is driven by the servo motor 12 in an opposite direction, that is, in the direction of the arrow b to move the attracted paper sheet 1' forward (leftward in the Figure).
  • the top face of the lift table 15 is lifted corresponding to a rotation of the cam 17 so that it is raised over the top face of the suction belt 5 to support the weight of the next-coming paper sheet 1" on the second position from the bottommost layer and the sheets in the upper layers in order to prevent the paper sheet 1" drop due to the weight of the paper sheets in the upper layers and contact with the suction belt. Because the suction belt 5 moves while only the paper sheet 1' on the bottommost layer is attracted to the suction hole 6 in the suction belt 5, the second paper sheet 1" is not yet attracted at this time.
  • the suction belt 5 continues to advance and the lift table 15 is kept in the lifted condition and the front end of the paper sheet 1' arrives at the feed rolls 22 so that it is nipped by the feed rolls 22 (the feed rolls 22 are always rotating in a direction in which the paper sheet advances).
  • the top face of the lift table 15 maintains its position holding a position higher than the top face of the suction belt 5 by the amount of a specified dimension while preventing the next-coming paper sheet 1" from making contact with the suction belt 5 still running.
  • the paper sheets in the lower part of the stack of paper sheets are fed out successively to the feed rolls side one by one.
  • the method and apparatus of the present invention are suitably used when paper sheets are fed to a printing apparatus or die cutting and punching apparatus one by one from the bottom of a stack of paper sheets.

Landscapes

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

Claims (2)

  1. Verfahren zum Zuführen von Papierbögen
    durch Herausziehen eines und nur eines Papierbogens (1") aus einem Stapel (1) von Papierbögen, der sich zuunterst in dem Stapel (1) befindet, um ihn einem nachfolgenden Papierverarbeitungsschritt zuzuführen, wobei das untere Ende des Stapels zwischen einer vorderen Führung (2) und einem hinteren Abschluss (3) gehalten wird, die vordere Führung (2) eine Aufnahmeklaue (4) aufweist, die den zuunterst liegenden Papierbogen (1") abstützt, wobei der Stapel in Richtung zum hinteren Abschluss (3) geneigt ist, und
    der zuunterst liegende Papierbogen (1") durch Ansaugen von der Aufnahmeklaue (4) gelöst und einem nachfolgenden Verarbeitungsschritt zugeführt wird, wobei der verbleibende Stapel (1) gleichzeitig mit Hilfe von Hubtischen (15) angehoben wird, um den zuunterst liegenden Papierbogen (1") herauszuziehen, wobei ein Kontakt zwischen dem zuunterst liegenden Papierbogen (1") und dem im Stapel (1) als nächster liegenden Papierbogen verhindert wird.
  2. Vorrichtung zum Zuführen von Papierbögen, die aufweist:
    eine vordere Führung (2) und einen hinteren Abschluss (3), die zueinander parallel sind und jeweils senkrecht stehen, wobei das untere Ende der vorderen Führung (2) so nach innen gebogen ist, dass eine Aufnahmeklaue (4) gebildet wird, die den zuunterst liegenden Papierbogen (1") eines Stapels (1) von Papierbögen abstützt, ein in der Förderrichtung umkehrbares Saugband (5), das dem unteren Ende des hinteren Abschlusses (3) in einem Abstand gegenüberliegt, der es ermöglicht, dass nur ein einziger Papierbogen (1') durchgelassen wird, wenn das Saugband (5) in Rückwärtsrichtung bewegt wird,
    einen Hubtisch (15) zum Anheben des Stapels (1) über das Saugband (5), um einen Kontakt zwischen dem Stapel (1) und dem Saugband (5) zu verhindern,
    eine Nockeneinrichtung (17) zum Auf und Abbewegen des Hubtisches (15)
    und
    zwei Walzen, die in einer Verlängerung des Saugbandes (5) angeordnet sind und dazu dienen, einen herausgezogenen Papierbogen (1') vom Saugband (5) aufzunehmen.
EP05007463A 2004-04-06 2005-04-05 Verfahren und Vorrichtung zum Zuführen von Papier Not-in-force EP1584583B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004112555 2004-04-06
JP2004112555A JP2005298078A (ja) 2004-04-06 2004-04-06 紙葉給送方法及び装置

Publications (3)

Publication Number Publication Date
EP1584583A2 EP1584583A2 (de) 2005-10-12
EP1584583A3 EP1584583A3 (de) 2008-07-30
EP1584583B1 true EP1584583B1 (de) 2010-05-26

Family

ID=34909493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007463A Not-in-force EP1584583B1 (de) 2004-04-06 2005-04-05 Verfahren und Vorrichtung zum Zuführen von Papier

Country Status (4)

Country Link
EP (1) EP1584583B1 (de)
JP (1) JP2005298078A (de)
CN (1) CN100448764C (de)
DE (1) DE602005021425D1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007217174A (ja) * 2006-02-20 2007-08-30 Sanwa Seisaku Kk 紙葉給送方法及び装置の改良
JP4886075B1 (ja) * 2011-01-31 2012-02-29 江沢事務器株式会社 カット紙送給装置
CN102730440A (zh) * 2011-04-12 2012-10-17 常州戈顿科技有限公司 一种纸板加工机械的进纸机构
WO2012170474A1 (en) * 2011-06-07 2012-12-13 Ranpak Corp. Reduced footprint dunnage conversion system and method
DE102012013517A1 (de) * 2012-07-06 2014-01-09 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Vereinzeln von Wertdokumenten, sowie Wertdokumentbearbeitungssystem
CN103287615B (zh) * 2013-06-14 2016-01-20 江西创一精密机械有限公司 薄料板分板装置
CN103693465B (zh) * 2013-12-04 2018-01-12 无锡佳泰科技有限公司 一种标签纸分发装置的改进结构
DE102015217170B4 (de) * 2014-09-17 2023-10-05 Heidelberger Druckmaschinen Ag Vorrichtung zur Vereinigung eines Hilfsstapels mit einem Hauptstapel
CN104772928B (zh) * 2015-04-16 2017-08-22 温州中科包装机械有限公司 包装盒纸张顶纸分张机构
EP3360828B1 (de) * 2015-10-09 2020-05-06 Totani Corporation Blattproduktbereitstellungsvorrichtung
CN105984737B (zh) * 2015-12-11 2018-02-13 北京航天斯达科技有限公司 成摞纸张单张分离装置
CN106276338B (zh) * 2016-08-23 2017-12-05 广东东方精工科技股份有限公司 一种同时下降分时上升抬板的送纸方法
CN110497648A (zh) * 2019-08-16 2019-11-26 吉文献 基于凸轮复位原理的纸箱前处理纸板送料装置
CN112249743B (zh) * 2020-12-16 2021-06-08 佛山市金页盈信智能机械有限公司 一种出纸装置
JP7133261B1 (ja) * 2022-04-12 2022-09-08 昌弘 塚崎 給紙装置、及び給紙方法

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US3405935A (en) * 1966-12-30 1968-10-15 Soroban Engineering Inc Card picker mechanism
GB1409607A (en) * 1972-10-19 1975-10-08 Rotaprint Gmbh Sheet take-off device for printing or duplicating machines
JPS6050602B2 (ja) 1978-06-14 1985-11-09 日本板硝子株式会社 ガラス板周辺へのモ−ル接着固定用治具
US4363478A (en) * 1979-07-23 1982-12-14 Yasuhiro Tsukasaki Method and apparatus of feeding corrugated boards
JPS61114937A (ja) 1984-11-12 1986-06-02 Asahi Tekkosho:Kk 積層シ−トのフイ−ド方法とボトムフイ−ダ
US5184811A (en) * 1988-10-13 1993-02-09 Sun Automation, Inc. Method and apparatus for feeding sheets
US5116040A (en) * 1990-04-06 1992-05-26 De La Rue Giori S.A. Sheet-feeder
FR2708579B1 (fr) * 1993-08-05 1995-10-13 Martin Sa Procédé pour introduire une matière en plaque dans une machine de transformation de cette matière en plaque et dispositif pour la mise en Óoeuvre de ce procédé.
DE19549675B4 (de) * 1995-07-07 2005-02-17 Windmöller & Hölscher Kg Verfahren zum Vereinzeln gestapelter flacher Schlauchstücke
JPH09194058A (ja) * 1996-01-19 1997-07-29 Asahi Mach Kk ボトムフィーダ
DE19821871A1 (de) * 1998-05-15 1999-11-18 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Vereinzeln eines Stapels blattförmiger Aufzeichnungsträger

Also Published As

Publication number Publication date
CN100448764C (zh) 2009-01-07
EP1584583A2 (de) 2005-10-12
CN1683225A (zh) 2005-10-19
EP1584583A3 (de) 2008-07-30
JP2005298078A (ja) 2005-10-27
DE602005021425D1 (de) 2010-07-08

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