US3730515A - Apparatus for feeding sheets of paper - Google Patents

Apparatus for feeding sheets of paper Download PDF

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Publication number
US3730515A
US3730515A US00114623A US3730515DA US3730515A US 3730515 A US3730515 A US 3730515A US 00114623 A US00114623 A US 00114623A US 3730515D A US3730515D A US 3730515DA US 3730515 A US3730515 A US 3730515A
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US
United States
Prior art keywords
sheet
sheets
paper
suction
underlapping
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.)
Expired - Lifetime
Application number
US00114623A
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English (en)
Inventor
H Spiess
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Individual
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Individual
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Filing date
Publication date
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Publication of US3730515A publication Critical patent/US3730515A/en
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    • 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
    • B65H5/26—Duplicate, alternate, selective, or coacting feeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • 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
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • B65H29/6636—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed in combination with auxiliary means for underlapping 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
    • 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/10—Selective handling processes
    • B65H2301/12—Selective handling processes of sheets or web
    • B65H2301/121—Selective handling processes of sheets or web for sheet handling processes, i.e. wherein the web is cut into sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • ABSTRACT Apparatus for feeding sheets cut from a continuous web of paper in an underlapping sequence or array comprising a group of suction cups, suction rollers or the like, which are adapted to be moved back and forth parallel to the line of travel of the sheets and attach themselves to the trailing edges of successive sheets after they are freed from conveying means to lift the edges of these sheets, retard their forward movement, and stretch the sheets in such a manner that the leading edge of the next sheet is moved below the raised edge.
  • the invention relates to sheet feeders comprising separating and conveying means for separating the sheets and conveying the same to a machine for further processing said sheets such as a printing machine.
  • the object of the invention is to provide a sheet feeder in which a paper web cutter is used but which obviates the use ofa turnover drum and a device which overlaps the individual sheets, the sheets separated from the web being fed to the feed table with their longitudinal edges forward.
  • the cutter is also intended to perform only as many cuts per unit of time as sheets are to be fed to the sheet-using machine per unit of time.
  • Another object of the invention is to so construct the sheet feeder that it can selectively be changed over in a short period of time and without any appreciable conversion to handling webs or sheet piles on a raisable pile table.
  • I provide apparatus for feeding sheets cut from a continuous web of paper in an underlapping sequence or array comprising a group of suction cups, suction rollers or the like which are adapted to be moved back and forth parallel to the line of travel of the sheets and attach themselves to the trailing edges of successive sheets after they are freed from conveying means to lift the edges of these sheets, retard their forward movement, and stretch the sheets in such a manner that the leading edge of the next sheet is moved below the raised edge.
  • FIG. 1 is a diagrammatic side elevation of the sheet feeder
  • FIG. 2 is a plan view of FIG. 1;
  • FIG. 3 is a vertical cross-section taken on lines III III in FIG. 1 through the support on which the underlapping sheets are guided;
  • FIG. 4 is a similar view of the support in a different adjustment.
  • FIG. 5 shows a view similar to FIG. 1, the frame carrying the head stop and conveyor section having been lowered and moved to the right underneath the middle conveyor section.
  • the web of paper is unreeled from a reel a and is fed to a cross cutter b which cuts the web into sheets of adjustable length.
  • Conveyor belts c, and 0 receiving the sheets move at greater speed so as to create some gaps between the individual sheets.
  • the sheet end is engaged by pneumatically or mechanically controlled suction cups e, suction roller of the like is lifted and retarded in respect of its further movement.
  • the leading edge of the sheet passes between rollers f and the bottom belt rollers 11 around which belts g extend and which rotate at a reduced speed, and further transport the brake sheet at a lower speed.
  • the sheet Since the sheet is for the time being retained at its rear edge by the suction cups 2, it is stretched and lifted from the bottom belts 0 Consequently, the next following sheet which is still located between belts c and c and is moving at greater speed, passes with its forward edge without obstruction beneath the rear edge of the leading sheet moving at lower speed so that an array of underlapping sheets is formed.
  • the suction cups e are so disposed that, although they follow the slow forward movement of the engaged sheet, they offer some resistance to this movement of the sheet, for instance, by spring tension. Consequently the sheet remains stretched as long as its rear end is engaged by the suction cups e.
  • the suction cups e When the suction cups e have covered the short distance as indicated by the shorter arrowed line in FIG. 1, they release the sheet end and a second group of suction cups, suction rollers or the like (not shown for the sake of clarity) moving in the opposite direction to the first group of suction cups, attach themselves to the end of the next sheet.
  • the two groups of suction cups or suction rollers are coupled so that one group moves to the right while the other group is drawn to the left by the sheet.
  • the control of the suction cups 2 by each adhering sheet can be replaced by a mechanical control means which move the suction cups at the speed of belts g.
  • the rollers f and h are horizontally adjustable so that they can be adapted to the length of the sheets being processed.
  • the distance between these rollers and the rollers d is substantially equal to the length to which the sheets are being cut.
  • parallel rails r are arranged beneath the belts i and are individually vertically adjustable by rotation of shaft s. As shown in FIG. 4, the rails r can thus be adjusted to give a slight transverse curvature to the sheets. As a result, the sheets are stiffened and creasing is prevented.
  • the belts i are mounted with their end rollers on their own frame 0 which allows these conveyor belts to be lowered and laterally withdrawn.
  • the bell crank lever u which supports one end of the frame 0 on the horizontal rail, is turned upwards.
  • the conveyor belt 1' and the head stop or abutment k are lowered into a position whereby the frame 0 together with the belts i can be pushed beneath belts c and g.
  • a vertically adjustable pile table u carrying a pile of sheets q can be readily moved into position in the resulting free space.
  • Apparatus for feeding sheets of paper cut from a continuous web of paper in an underlapping sequence comprising first conveyor means, second conveyor edge of said first sheet is moved by said second conveying means to stretch the first sheet and allow the leading edge of a following second sheet to be moved beneath the lifted trailing edge of said first sheet, said suction retarding means being released from said first sheet at the end of said predetermined distance.
US00114623A 1970-03-05 1971-02-11 Apparatus for feeding sheets of paper Expired - Lifetime US3730515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702010467 DE2010467B2 (de) 1970-03-05 1970-03-05 Vorrichtung zur bildung einer folge von sich unter lappender bogen fuer bogenanlegeapparate

Publications (1)

Publication Number Publication Date
US3730515A true US3730515A (en) 1973-05-01

Family

ID=5764230

Family Applications (1)

Application Number Title Priority Date Filing Date
US00114623A Expired - Lifetime US3730515A (en) 1970-03-05 1971-02-11 Apparatus for feeding sheets of paper

Country Status (7)

Country Link
US (1) US3730515A (de)
JP (1) JPS4832029B1 (de)
CH (1) CH513067A (de)
DE (1) DE2010467B2 (de)
FR (1) FR2066089A5 (de)
GB (1) GB1285419A (de)
SE (1) SE377100B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302001A (en) * 1979-01-23 1981-11-24 Georg Spiess Gmbh Device for forming a sequence of underlapping sheets
US6129503A (en) * 1997-06-26 2000-10-10 Bobst Group, Inc. Combination counter-ejector shingle-output delivery system
WO2018229201A1 (de) * 2017-06-14 2018-12-20 Bw Papersystems Stuttgart Gmbh Vorrichtung und verfahren zur bildung eines schuppenstroms von unter- oder überlappenden bögen
US10486416B2 (en) 2016-04-29 2019-11-26 Koenig & Bauer Ag Device for overlapping sheets
US20210024314A1 (en) * 2019-02-20 2021-01-28 Bw Papersystems Stuttgart Gmbh Apparatus for cutting a material web into individual sheets with a web storage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159334U (de) * 1979-04-30 1980-11-15
DE3404459A1 (de) * 1984-02-08 1985-08-14 Frankenthal Ag Albert Verfahren und vorrichtung zur auslage bogenfoermiger produkte in form eines schuppenstromes
US4776577A (en) * 1987-03-10 1988-10-11 Marquip, Inc. Shingling of delicate conveyed sheet material
EP0553739B1 (de) * 1992-01-31 1995-08-02 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Einrichtung zum Verstellen von Bogenleitelementen in Rotationsdruckmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545912A (en) * 1921-05-13 1925-07-14 Charles B Maxson Feeding and stacking method and machine
US1994012A (en) * 1931-06-15 1935-03-12 Hickok W O Mfg Co Sheet lapping mechanism
US2285076A (en) * 1939-08-11 1942-06-02 Backhouse Headley Townsend Sheet feeder
US3218897A (en) * 1962-12-27 1965-11-23 Smith & Winchester Mfg Company Sheet feeding apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545912A (en) * 1921-05-13 1925-07-14 Charles B Maxson Feeding and stacking method and machine
US1994012A (en) * 1931-06-15 1935-03-12 Hickok W O Mfg Co Sheet lapping mechanism
US2285076A (en) * 1939-08-11 1942-06-02 Backhouse Headley Townsend Sheet feeder
US3218897A (en) * 1962-12-27 1965-11-23 Smith & Winchester Mfg Company Sheet feeding apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302001A (en) * 1979-01-23 1981-11-24 Georg Spiess Gmbh Device for forming a sequence of underlapping sheets
US6129503A (en) * 1997-06-26 2000-10-10 Bobst Group, Inc. Combination counter-ejector shingle-output delivery system
US10486416B2 (en) 2016-04-29 2019-11-26 Koenig & Bauer Ag Device for overlapping sheets
WO2018229201A1 (de) * 2017-06-14 2018-12-20 Bw Papersystems Stuttgart Gmbh Vorrichtung und verfahren zur bildung eines schuppenstroms von unter- oder überlappenden bögen
KR20200024225A (ko) * 2017-06-14 2020-03-06 비더블유 페이퍼시스템즈 스투트가르트 게엠베하 언더- 또는 오버래핑 시트들의 겹침 스트림을 형성하기 위한 디바이스 및 방법
JP2020524121A (ja) * 2017-06-14 2020-08-13 ビーダブリュ ペイパーシステムズ シュトゥットガルト ゲゼルシャフト ミット ベシュレンクテル ハフツング アンダーラップ又はオーバーラップするシートの鱗状列流を形成するためのデバイス及び方法
JP2022093368A (ja) * 2017-06-14 2022-06-23 ビーダブリュ ペイパーシステムズ シュトゥットガルト ゲゼルシャフト ミット ベシュレンクテル ハフツング アンダーラップ又はオーバーラップするシートの鱗状列流を形成するためのデバイス及び方法
US11612944B2 (en) 2017-06-14 2023-03-28 Bw Papersystems Stuttgart Gmbh Device and method for forming a shingle stream of under- or overlapping sheets
US20210024314A1 (en) * 2019-02-20 2021-01-28 Bw Papersystems Stuttgart Gmbh Apparatus for cutting a material web into individual sheets with a web storage

Also Published As

Publication number Publication date
DE2010467A1 (de) 1971-11-25
CH513067A (de) 1971-09-30
SE377100B (de) 1975-06-23
JPS4832029B1 (de) 1973-10-03
DE2010467B2 (de) 1971-11-25
GB1285419A (en) 1972-08-16
FR2066089A5 (de) 1971-08-06

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