EP1688377A2 - Bogenförderapparat - Google Patents

Bogenförderapparat Download PDF

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Publication number
EP1688377A2
EP1688377A2 EP06001324A EP06001324A EP1688377A2 EP 1688377 A2 EP1688377 A2 EP 1688377A2 EP 06001324 A EP06001324 A EP 06001324A EP 06001324 A EP06001324 A EP 06001324A EP 1688377 A2 EP1688377 A2 EP 1688377A2
Authority
EP
European Patent Office
Prior art keywords
sheet
suction ports
chucking means
chucking
air
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Withdrawn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
EP06001324A
Other languages
English (en)
French (fr)
Other versions
EP1688377A3 (de
Inventor
Kazuhiko Kato
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.)
Komori Corp
Original Assignee
Komori Corp
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 Komori Corp filed Critical Komori Corp
Publication of EP1688377A2 publication Critical patent/EP1688377A2/de
Publication of EP1688377A3 publication Critical patent/EP1688377A3/de
Withdrawn legal-status Critical Current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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • 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

Definitions

  • the present invention relates to a sheet convey apparatus which is used in a sheet feeder or the like for a sheet-fed offset rotary printing press and serves to chuck stacked sheets one by one from the uppermost one and feed it forward.
  • a sheet convey apparatus has been proposed as shown in Japanese Utility Model Laid-Open No. 5-51835, which comprises a suction port holder which chucks the trailing edge of the uppermost one of stacked sheets and upper and lower cams and front and rear cams which are fixed parallel to each other to cam shafts rotatably driven by motors.
  • the suction port holder is moved downward by the cam action of the upper and lower cams to chuck the trailing edge of a sheet, and moved upward.
  • the sheet is then conveyed to a feed roller by the cam action of the front and rear cams.
  • a sheet convey apparatus 101 comprises a pile board 11 on which a plurality of sheets 10 are to be stacked, a pair of first suction ports 12 which are supported to be movable in the widthwise direction of the sheets 10 stacked on the pile board 11, and a pair of second suction ports 13 which are supported to be movable in the back-and-forth direction (a direction of arrows A - B) of the sheets 10 staked on the pile board 11.
  • a sheet convey apparatus 101 comprises a pile board 11 on which a plurality of sheets 10 are to be stacked, a pair of first suction ports 12 which are supported to be movable in the widthwise direction of the sheets 10 stacked on the pile board 11, and a pair of second suction ports 13 which are supported to be movable in the back-and-forth direction (a direction of arrows A - B) of the sheets 10 staked on the pile board 11.
  • the pair of suction ports 13 are attached to the two ends of a support shaft 14 extending in the widthwise direction (a direction perpendicular to the direction of the arrows A - B) of the sheets 10.
  • the support shaft 14 is supported to be movable in the direction of the arrows A - B through a cam shaft (not shown) which is axially supported by a sucker frame 15 and driven to rotate by a motor, and a cam (not shown) which is axially mounted on the cam shaft.
  • Suction air is supplied to the suction ports 12 and 13 from an intake device (not shown) through a hose.
  • Sheet air blowers 16 serving as an air blowing member blow separation air to the sheets 10 stacked on the pile board 11 from behind so the stacked sheets 10 separate smoothly.
  • air is supplied from the sheet air blowers 16 to move a sheet 10 slightly upward, the moved sheet 10 is reliably chucked by the suction ports 12.
  • a leveling foot 17 serving as an air blowing member reciprocates between a standby position (Fig. 6A) and an operative position (Fig. 8A) and enters between an uppermost sheet 10A chucked by the suction ports 12 and the sheets 10 under it to press the sheets 10. Simultaneously, the leveling foot 17 blows separation air to separate the uppermost sheet 10A entirely from the sheets 10 under it.
  • holddown wheels 18 and a forwarding roll 19 catch the released sheet and feed it onto a feeder board 20.
  • Sheet convey operation in the conventional sheet convey apparatus will be described with reference to Figs. 6A and 6B to Figs. 12A and 12B.
  • the sheet air blowers 16 blow separation air momentarily to the sheets 10 stacked on the pile board 11 from behind to separate a sheet 10 stacked on the top.
  • the first suction ports 12 to which suction air is supplied from the intake device (not shown) move downward to chuck the trailing edge of the uppermost sheet 10A which is separated by the sheet air blowers 16.
  • the first suction ports 12 then move upward to lift the trailing edge of the sheet 10A, as shown in Figs. 7A and 7B. In this state, as shown in Figs.
  • the leveling foot 17 enters between the uppermost sheet 10A and a sheet (the second sheet from the top) 10 under the sheet 10A to urge the sheets 10.
  • the sheet air blowers 16 supply separation air to separate the uppermost sheet 10A entirely from the sheets 10 under it.
  • the intake device (not shown) supplies suction air to the second suction ports 13 to chuck, by the second suction ports 13, a downstream portion in the sheet convey direction (the direction of the arrow A) of the trailing edge of the separated uppermost sheet 10A.
  • the sheet 10A chucked by the first suction ports 12 is released and transferred from the first suction ports 12 to the second suction ports 13, as shown in Figs. 9A and 9B.
  • the second suction ports 13, while chucking the uppermost sheet 10A are accelerated to a convey speed as they translate in the sheet convey direction (the direction of the arrow A), as shown in Figs. 10A and 10B.
  • the sheet is conveyed as its trailing edge is chucked by one suction port holder.
  • the leading edge of the sheet which is not chucked by the suction port holder comes into contact with a sheet under it during conveyance.
  • sheet conveyance cannot be performed smoothly.
  • the leading edge of the sheet cannot be caught by the feed roller, poor sheet-feeding readily occurs. This is conspicuous particularly with a large-sized sheet.
  • a sheet convey apparatus comprising a pile board on which a plurality of sheets are to be stacked, air blowing means for supplying air between a first sheet and a second sheet which are the first and the second when counted from an uppermost one of the sheets stacked on the pile board, to separate the first sheet from the second sheet, first chucking means, supported to be movable in a direction of sheet thickness, for chucking and holding a trailing edge of the separated first sheet to lift upward the separated first sheet, second chucking means, supported to be movable in a sheet back-and-forth direction, for chucking and holding a more sheet leading edge side than a portion chucked by the first chucking means of the first sheet transferred from the first chucking means, and conveying the first sheet forward, and third chucking means, supported to be movable in the sheet back-and-forth direction, for chucking and holding the trailing edge of the first sheet transferred from the first chucking means
  • a sheet convey apparatus 101 comprises a pile board 111 on which a plurality of sheets 110 are to be stacked, a pair of first suction ports 112 (first chucking means) which are supported to be movable in the widthwise direction of the sheets 110 stacked on the pile board 111, and a pair of second suction ports 113 (second chucking means) which are supported to be movable in the back-and-forth direction (a direction of arrows A - B) of the sheets 110 staked on the pile board 111.
  • first suction ports 112 first chucking means
  • second suction ports 113 second chucking means
  • the pair of suction ports 113 are attached to the two ends of a support shaft 114 extending in the widthwise direction (a direction perpendicular to the direction of the arrows A - B) of the sheets 110.
  • the support shaft 114 is supported to be movable in the direction of the arrows A - B through a cam shaft (not shown) which is axially supported by a sucker frame 115 and driven to rotate by a motor, and a cam (not shown) which is axially mounted on the cam shaft.
  • Suction air is supplied to the suction ports 112 and 113 from an intake device (not shown) through a hose.
  • Sheet air blowers 116 serving as an air blowing member blow separation air to the sheets 110 stacked on the pile board 111 from behind so the stacked sheets 110 separate smoothly.
  • air is supplied from the sheet air blowers 116 to move a sheet 110 slightly upward, the moved sheet 110 is reliably chucked by the suction ports 112.
  • a leveling foot 117 serving as an air blowing member reciprocates between a standby position and an operative position (Fig. 1A) and enters between an uppermost sheet 110A chucked by the suction ports 112 and the sheets 110 under it to press the sheets 110. Simultaneously, the leveling foot 117 blows separation air to separate the uppermost sheet 10A entirely from the sheets 110 under it.
  • holddown wheels 118 and a forwarding roll 119 catch the released sheet and feed it onto a feeder board 120.
  • the sheet convey apparatus 101 further comprises three third suction ports 121a to 121c (third chucking means) which are supported to be movable in the back-and-forth direction (the direction of the arrows A - B) of the sheets 110 stacked on the pile board 111 and chuck the trailing edge of the sheet 110 transferred from the suction ports 112 to convey it forward.
  • the suction ports 121a to 121c are arranged substantially on one straight line (on one straight line C) in the widthwise direction of the suction ports 112 and sheets 110 and move in the direction of arrows A - B integrally with the suction ports 113 at the same speed.
  • the suction ports 121a to 121c chuck a portion near the sheet widthwise direction of the trailing edge of the sheet 110 chucked by the suction ports 112.
  • the suction ports 121a to 121c also cooperate with the suction ports 113 to convey the sheet 110 transferred from the suction ports 112 to the suction ports 113.
  • Three parallel arms 122 extend in the horizontal direction.
  • One end of each arm 122 is fixed to the support shaft 114.
  • the three third suction ports 121a to 121c are attached to the distal ends of the respective arms 122 which extend toward the trailing edge (the direction of the arrow B) of the sheets 110 stacked on the pile board 111. That is, the suction ports 121a to 121c are supported to integrally move in the directions of the arrows A - B through the arms 122 to follow the suction ports 113. Therefore, the suction ports 121a to 121c move in the horizontal direction at the same speed as that of the suction ports 113.
  • the suction ports 121a to 121c are located at substantially the same height as that of the suction ports 113. Suction air is supplied to the suction ports 121a to 121c from an intake device (not shown) through the hose at the same timing as that for the suction ports 113. As shown in Fig. 1B, the suction port 121a is arranged between the pair of suction ports 112 in the widthwise direction of the sheets 110. The suction ports 121b and 121c are arranged outside the pair of suction ports 112. Both the suction ports 121a to 121c and the pair of suction ports 112 are arranged on substantially one straight line C in the widthwise direction of the sheets 110 when seen from the top.
  • the leveling foot 117 is arranged behind (in the direction of the arrow B), of the suction ports 121a to 121c and suction ports 112, the suction port 121a which is arranged at the center.
  • the sheet air blowers 123 are arranged behind the suction ports 121b and 121c which are arranged on the two sides.
  • the uppermost sheet 110A is transferred from the suction ports 112 to the suction ports 113.
  • suction air is supplied to the suction ports 121a to 121c to chuck the trailing edge of the sheet 110A by the suction ports 121a to 121c.
  • the sheet air blowers 123 blow separation air which separates the uppermost sheet 110A from the sheets 110 under it.
  • Fig. 2 shows the second embodiment of the present invention.
  • the side view of the second embodiment and the side views of the third to fifth embodiments to be described hereinafter are substantially identical to the side view of the first embodiment shown in Fig. 1B, and accordingly these side views will be omitted.
  • the identical members to those of the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.
  • the second embodiment is different from the first embodiment in that the two side ones of three suction ports 121a to 121c and corresponding sheet air blowers 123 are omitted. More specifically, in a sheet convey apparatus 151 according to the second embodiment, one suction port 121a provided in front of a leveling foot 117 is arranged between a pair of suction ports 112. One arm 122 extends which has one end fixed to the center of a support shaft 114. The suction port 121a is attached to the other end of the arm 122. In this structure, when a sheet 110A is to be transferred from the pair of suction ports 112 to a pair of suction ports 113, its trailing edge is further chucked and held by the suction port 121a.
  • Fig. 3 shows the third embodiment of the present invention.
  • the third embodiment is different from the first embodiment in that the central one of three suction ports 121a to 121c is omitted. More specifically, in a sheet convey apparatus 161 according to the third embodiment, no suction port is arranged in front of a leveling foot 117, and the pair of suction ports 121b and 121c are arranged in front of a pair of sheet air blowers 123. Two arms 122 extend each of which has one end fixed to a corresponding end of a support shaft 114. Each of the pair of suction ports 121b and 121c is attached to the other end of the corresponding one of the two arms 122. In this structure, when a sheet 110A is to be transferred, its trailing edge is chucked and held by suction ports 113 and the suction ports 121b and 121c.
  • Fig. 4 shows the fourth embodiment of the present invention.
  • the fourth embodiment is different from the first embodiment in that another pair of suction ports are arranged outside the two outer ones of three suction ports 121a to 121c. More specifically, in a sheet convey apparatus 171 according to the fourth embodiment, in addition to a pair of suction ports 112, another pair of suction ports 112' are arranged outside the suction ports 121b and 121c. In this structure, when a sheet 110A is to be transferred, its trailing edge is chucked and held by the suction ports 112, 112', and 121a to 121c.
  • Fig. 5 shows the fifth embodiment of the present invention.
  • the fifth embodiment is different from the first embodiment in that two more pairs of suction ports are arranged outside and inside the two outer ones of three suction ports 121a to 121c. More specifically, in a sheet convey apparatus 181 according to the fifth embodiment, in addition to a pair of suction ports 112, another pair of suction ports 112' are arranged outside the suction ports 121b and 121c, and still another pair of suction ports 112" are arranged inside the suction ports 121b and 121c. In this structure, when a sheet 110A is to be transferred, its trailing edge is chucked and held by the suction ports 112, 112', 112", and 121a to 121c.
  • the respective embodiments described above are exemplified by an example in which the suction ports 121 added to the pair of suction ports 112 are arranged at various positions and an example in which the number of the suction ports 112 which originally forms a pair is increased. Note that the present invention is not limited to these examples. It suffices as far as the added suction ports 121 are arranged substantially on one straight line in the sheet widthwise direction with respect to the suction ports 112. While the sheet is exemplified as a sheet 110 in the respective embodiments, the present invention can also be applied to a film-type sheet member.
  • the leveling foot 117 need not discharge air but may merely serve as a sheet press.
  • the present invention when a sheet is to be transferred from the first suction ports to the second suction ports, a space is ensured under the sheet.
  • separation air can reliably prevent the sheet from coming into contact with another sheet, so that the sheet can be conveyed smoothly.
  • the trailing edge of the sheet that has been fed out previously is not blown up by the separation air.
  • the sheet that has been fed out previously does not flutter or wave, so that poor sheet-feeding can be prevented.
EP06001324A 2005-02-02 2006-01-23 Bogenförderapparat Withdrawn EP1688377A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005026332A JP2006213437A (ja) 2005-02-02 2005-02-02 シート状物搬送装置

Publications (2)

Publication Number Publication Date
EP1688377A2 true EP1688377A2 (de) 2006-08-09
EP1688377A3 EP1688377A3 (de) 2007-07-04

Family

ID=36218786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001324A Withdrawn EP1688377A3 (de) 2005-02-02 2006-01-23 Bogenförderapparat

Country Status (4)

Country Link
US (1) US20060170146A1 (de)
EP (1) EP1688377A3 (de)
JP (1) JP2006213437A (de)
CN (1) CN1814528A (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114080281A (zh) * 2019-06-21 2022-02-22 株式会社天田集团 真空夹持器以及工件的吸附保持方法

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JP4495637B2 (ja) * 2005-05-27 2010-07-07 株式会社リコー 給紙装置及びこれを備えた電子写真装置
US7637499B2 (en) * 2006-02-09 2009-12-29 Canon Kabushiki Kaisha Sheet feeding apparatus and recording apparatus
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JP2013056765A (ja) * 2011-09-09 2013-03-28 Mimaki Engineering Co Ltd 媒体搬送機構及び媒体搬送方法
DE102011116365A1 (de) * 2011-10-19 2013-04-25 Heidelberger Druckmaschinen Aktiengesellschaft Bogenbearbeitungsmaschine mit Bogenanleger mit Saugbandmodul
JP6189428B2 (ja) * 2012-06-22 2017-08-30 グーデル グループ アーゲー 積み重ねられた被加工物の一番上から略平らな被加工物を取り出す方法及び装置
CN102910466B (zh) * 2012-11-07 2016-04-13 金红叶纸业集团有限公司 片状物分取机构及方法
CN103009175A (zh) * 2012-12-07 2013-04-03 浙江工商职业技术学院 开片机
JP6078739B2 (ja) * 2013-01-29 2017-02-15 株式会社デュプロ 給紙装置
CN103538363B (zh) * 2013-10-18 2016-08-24 何小午 用于胶印机的真空吸送纸机构
CN103848238B (zh) * 2014-02-14 2016-08-17 天津市诚远印刷机械有限公司 一种模切机机动给纸装置
JP6378530B2 (ja) * 2014-05-03 2018-08-22 株式会社半導体エネルギー研究所 フィルム吸着機構
CN104773543B (zh) * 2015-02-28 2017-02-22 唐山瑞可达科技有限公司 一种平压平包装印刷设备分纸输送机构
DE102015107378A1 (de) * 2015-05-11 2016-11-17 Dieffenbacher Maschinenfabrik Gmbh, Zaisenhausen Vorrichtung und Verfahren zum Transport von Folien
CN105173804A (zh) * 2015-09-02 2015-12-23 张家港市紫东机械科技有限公司 一种自动送纸装置
CN107662830B (zh) * 2016-07-27 2019-07-05 北京印刷学院 卡片纸给纸装置
CN106346549B (zh) * 2016-08-31 2018-03-20 张家港市华扬冶金机械有限公司 一种金属箔切片移送装置
CN107673095A (zh) * 2017-09-27 2018-02-09 侯鹏 一种气动式自动给纸机
JP7040022B2 (ja) * 2018-01-09 2022-03-23 コニカミノルタ株式会社 給紙装置及び画像形成装置
CN110510433B (zh) * 2019-09-02 2020-10-09 安徽宏洋包装集团有限公司 一种印刷用进纸装置
DE102022105125A1 (de) 2022-03-04 2023-09-07 TRUMPF Werkzeugmaschinen SE + Co. KG Verfahren und Vorrichtung zum Vereinzeln von Werkstücken

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CN114080281B (zh) * 2019-06-21 2023-08-15 株式会社天田集团 真空夹持器以及工件的吸附保持方法

Also Published As

Publication number Publication date
JP2006213437A (ja) 2006-08-17
EP1688377A3 (de) 2007-07-04
CN1814528A (zh) 2006-08-09
US20060170146A1 (en) 2006-08-03

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