US20070068407A1 - Sheet guiding device for sheet feeders - Google Patents

Sheet guiding device for sheet feeders Download PDF

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Publication number
US20070068407A1
US20070068407A1 US11/528,928 US52892806A US2007068407A1 US 20070068407 A1 US20070068407 A1 US 20070068407A1 US 52892806 A US52892806 A US 52892806A US 2007068407 A1 US2007068407 A1 US 2007068407A1
Authority
US
United States
Prior art keywords
sheet
guiding
guiding device
guiding elements
crossmember
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.)
Abandoned
Application number
US11/528,928
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English (en)
Inventor
Manfred Schmitt
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Assigned to HEIDELBERGER DRUCKMASCHINEN AG reassignment HEIDELBERGER DRUCKMASCHINEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMITT, MANFRED
Publication of US20070068407A1 publication Critical patent/US20070068407A1/en
Abandoned 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
    • 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
    • B65H3/66—Article guides or smoothers, e.g. movable in operation
    • B65H3/68—Article guides or smoothers, e.g. movable in operation immovable in operation

Definitions

  • the invention relates to a sheet-guiding device for a feeding region of a sheet-processing machine, particularly a printing press.
  • a suction conveying device which includes lifting and/or dragging suckers.
  • the uppermost sheet is separated from a sheet pile or stack by having the lifting suckers, in a lower position thereof, apply suction to the sheet, and then raising the lifting suckers.
  • blown air is guided under the sheet by separating blowers from the rear or trailing edge of the pile or stack, in order to assist in the separation of the sheet from the pile or stack and in the raising of the sheet, while lateral loosening blowers, in order to maintain the air pressure, continuously blow air against the lateral edges of the pile or stack in the leading section of the sheet.
  • a sheet-guiding device of that general type has become known heretofore from German Published, Non-prosecuted Patent Application DE 17 86 232 A1, corresponding to U.S. Pat. No. 3,482,833, wherein, in a feeding region of a sheet feeding device, a sheet is guided at the upper side thereof on a sheet conveying path over a sheet pile or stack by a plurality of horizontally disposed telescopically extensible sheet-guiding rods.
  • the telescopic rods extend horizontally in one plane from a crossmember which is disposed behind a suction head in the sheet transport direction transversely with respect to the sheet transport direction and is connected to the suction head above the sheet pile or stack as far as a transfer point to a feed table of a printing press.
  • the afore-mentioned sheet-guiding rods can be telescoped or pressed together upon the occurrence of a format-dependent adjustment of the suction head, respectively in and counter to the sheet transport direction.
  • Stepwise extending sections are formed by the tubular sections of the sheet-guiding rods.
  • the guiding elements are substantially dimensionally stable. A considerable disadvantage is that the sheet-guiding elements must be serviced or maintained in order to preserve the functional reliability thereof, because the telescopic rods are subject to increasing wear by contamination and abrasion.
  • a sheet-guiding device in a feed region of a sheet-processing machine.
  • the sheet-guiding device includes a suction head settable to the format length of a sheet.
  • Flexible sheet-guiding elements are disposed above a sheet conveying plane.
  • the sheet-guiding elements have a constant length and are disposed so as to be stationary, as well as to be deflectable by a positional change of the suction head.
  • the sheet-guiding device further includes deflector guide elements for deflecting the sheet-guiding elements out of a set guide plane.
  • the sheet-guiding device further includes a first stationary crossmember.
  • the sheet-guiding elements have a first end with which the sheet-guiding elements are disposed on the first stationary crossmember.
  • the sheet-guiding device further includes a second stationary crossmember.
  • the sheet-guiding elements have a second end with which the sheet-guiding elements are disposed on the second stationary crossmember.
  • the sheet-guiding device further includes axially displaceable and vertically adjustable holding devices by which the sheet-guiding elements are disposed on the second crossmember.
  • the sheet-guiding device further includes a spring force-loaded tensioning roller for tensioning the sheet-guiding elements.
  • the sheet-processing machine is a rotary press.
  • An advantage of the invention is that the sheet-guiding elements are adjustable in terms of format not only in the longitudinal direction of the sheet but also in the transverse direction of the sheet, so that the lateral format adjustment of devices, such as lateral pile or stack stops or lateral loosening blowers, for example, is not impeded by the sheet-guiding device, and sheet guidance over the entire sheet width nevertheless occurs.
  • a further advantage of the invention is that stepless or infinitely variable guiding devices having low friction are provided.
  • the sheet-guiding elements according to the invention afford the advantage that they require extremely low maintenance, because strong or thick cable or rope material exhibiting correspondingly low wear can be used due to obtuse deflection angles for the belt material. Format differences from the greatest possible format to the smallest possible format in the longitudinal direction of the paper do not have to be compensated for at the guiding cords, because the latter do not have a fixed point at the suction head, but rather are only deflected.
  • FIG. 1 is a diagrammatic, side-elevational view of a sheet-fed rotary printing press illustrating the present invention
  • FIG. 2 is an enlarged, fragmentary, side-elevational view of FIG. 1 showing a feeder of the printing press with a sheet-guiding system disposed above a sheet pile or stack;
  • FIG. 3 is a top-plan view of the sheet pile or stack with sheet-guiding elements disposed thereabove.
  • FIG. 4 is a view similar to FIG. 2 showing an alternative embodiment for guiding the sheet-guiding elements.
  • a sheet-processing machine for example a printing press 1 , having a sheet feeder 2 , at least one printing unit 3 or 4 and a delivery 6 .
  • Sheets 7 are removed from a sheet pile or stack 8 and stream-fed singly or in an overlapping or shingled manner over a feed table 9 to a sheet-feeding device 5 which transfers the sheets 7 to the printing units 3 and 4 in an accelerated manner.
  • the printing units 3 and 4 in a conventional manner, each include a respective plate cylinder 11 , 12 .
  • the respective plate cylinders 11 , 12 have respective devices 13 , 14 for fastening flexible printing plates thereon.
  • each plate cylinder 11 , 12 has a device 16 , 17 assigned thereto for semi-automatically or fully automatically changing printing plates.
  • the sheet pile or stack 8 lies on a controllably liftable pile or stack board 10 . Removal of the sheets 7 from the upper side of the sheet pile or stack 8 is effected by a so-called suction head 18 which has, among others, a number of lifting and dragging suckers 19 , 21 for singling or separating the sheets 7 . Moreover, blowing devices 22 are provided for loosening the upper sheet layers, and sensing or feeling elements 23 are provided for tracking or readjusting the stack or pile 8 . A number of lateral and rear stops 24 are provided for aligning the sheet pile or stack 8 , particularly the upper sheets 7 of the sheet pile or stack 8 .
  • the suction head 18 is disposed in the rear region above the sheet pile or stack 8 and is mounted so as to be displaceable respectively in and counter to the sheet transport direction for format matching or adjustment.
  • a number of flexible sheet-guiding elements 26 are provided on a common elevation level between the suction head 18 and the upper side of the sheet pile or stack 8 , for example in the form of cables, cords, belts and so forth, for ensuring that a sheet subjected to blown or blast air from the blowing or blast devices 22 cannot leave the provided transport path in an upward direction.
  • the sheet-guiding elements 26 are fastened at a first end 27 thereof to a first crossmember 28 , which is disposed in front or upstream of the sheet pile or stack 8 in the sheet transport direction, and are fastened at a second end 29 thereof to a second crossmember 31 which is disposed behind or downstream of the sheet pile or stack 8 .
  • a respective sheet-guiding element 26 partly wraps around a spring-loaded tensioning roller 32 disposed on the rear crossmember 28 .
  • Two deflection rollers 33 , 34 per sheet-guiding element 26 are fastened to levers 35 , 40 and are disposed on the suction head 18 in a downwardly-directed manner, so that the sheet-guiding elements 26 are guided below and laterally around the suction head 18 .
  • the second end 29 of each sheet-guiding element 26 is disposed on the second crossmember 31 by a vertically adjustable and axially displaceable holding device 36 . As is seen in FIGS.
  • the holding device 36 and the deflection rollers 33 , 34 are preferably disposed, with respect to the height or elevation thereof, in such a way that the sheet-guiding elements 26 lie approximately in a common guide plane E approximately respectively parallel to the upper side of the sheet pile or stack 8 and a conveying plane.
  • the suction head 18 is displaced in the sheet transport direction, i.e., in the direction of the second crossmember 31 , when small format lengths are processed, a smaller geometric overall length of the sheet-guiding elements 26 of constant length is necessary. However, in order to be able to hold the sheet-guiding elements 26 in a constantly tensioned manner, a small deflection of the sheet-guiding elements 26 is produced by the tensioning roller 32 .
  • the first deflection roller 33 of the first embodiment of FIG. 2 is replaced by a combination of two deflection rollers 41 and 42 , which are wrapped around in an S-shape.
  • One deflection roller 42 is disposed on a spring-loaded lever 43
  • the other deflection roller 41 is disposed in a stationary manner on the suction head 18 . Due to this guidance of the sheet-guiding elements 26 , a displacement path of the suction head 18 does not have to be compensated for.
  • the suction head 18 is disposed in the rear region above the sheet pile or stack 8 and is mounted so as to be respectively displaceable in and counter to the sheet transport direction for format matching or adjustment.
  • a number of flexible sheet-guiding elements 26 are provided on an elevation level between the suction head 18 and the upper side of the sheet pile or stack 8 , which ensure that a sheet 7 subjected to the blowing or blast devices cannot leave the provided transport path in an upward direction.
  • the sheet-guiding elements 26 are fastened at the first end 27 thereof to the first crossmember 28 which is disposed in front or upstream of the sheet pile or stack 8 in the sheet transport direction, and are fastened at the second end 29 thereof to a second crossmember 31 disposed behind or downstream of the sheet pile or stack 8 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
US11/528,928 2005-09-29 2006-09-28 Sheet guiding device for sheet feeders Abandoned US20070068407A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005046685A DE102005046685A1 (de) 2005-09-29 2005-09-29 Bogenleiteinrichtung für Bogenanleger
DE102005046685.0 2005-09-29

Publications (1)

Publication Number Publication Date
US20070068407A1 true US20070068407A1 (en) 2007-03-29

Family

ID=37507560

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/528,928 Abandoned US20070068407A1 (en) 2005-09-29 2006-09-28 Sheet guiding device for sheet feeders

Country Status (4)

Country Link
US (1) US20070068407A1 (ja)
EP (1) EP1770036B1 (ja)
JP (2) JP2007091474A (ja)
DE (1) DE102005046685A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103587983A (zh) * 2013-11-18 2014-02-19 杭州惠宝机电有限公司 一种吸风式送纸构件
US20160325960A1 (en) * 2015-05-06 2016-11-10 Xerox Corporation System, apparatus and method for dampening and stabilizing automation picking and stacking
CN106608553A (zh) * 2015-10-23 2017-05-03 杭州惠宝机电有限公司 双风机分格吸风送纸装置
US11214112B2 (en) 2017-06-14 2022-01-04 ThyssenKrupp Federn und Stabilisatoren GmbH Stabilizer bar adhesive mount for a vehicle stabilizer bar, vehicle stabilizer bar having a stabilizer bar adhesive mount, and method for forming a stabilizer bar adhesive mount on a vehicle stabilizer bar

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039986A1 (de) * 2006-08-25 2008-02-28 Koenig & Bauer Aktiengesellschaft Bogenleiteinrichtung für Bogenanleger
JP4215806B2 (ja) 2007-03-30 2009-01-28 株式会社東芝 半導体装置
JP2009073631A (ja) * 2007-09-20 2009-04-09 Mitsubishi Heavy Ind Ltd 枚葉印刷機の給紙装置並びに枚葉印刷機
JP6248552B2 (ja) * 2013-11-06 2017-12-20 大日本印刷株式会社 情報処理装置、情報処理方法及び情報処理プログラム

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482833A (en) * 1967-09-25 1969-12-09 Miller Printing Machinery Co Sheet feeder assembly
US4430012A (en) * 1981-04-06 1984-02-07 Zenith Radio Corporation Paper guide for line printer
US5039086A (en) * 1988-09-02 1991-08-13 Hitachi, Ltd. Method and apparatus for adjusting posture of sheets
US5863037A (en) * 1995-10-06 1999-01-26 Heidelberger Druckmaschinen Ag Sheet guide device for sheet feeders
US5915688A (en) * 1995-11-09 1999-06-29 Heidelberger Druckmaschinen Ag Device for forming an auxiliary sheet pile during a nonstop pile change in a delivery of a printing press
US20040201166A1 (en) * 2003-04-11 2004-10-14 Hans Butterfass Method of feeding sheets to a sheet-processing machine, sheet-smoothing method and device
US20050016401A1 (en) * 2003-07-24 2005-01-27 Miyakoshi Printing Machinery Co., Ltd. Rotary press
US6978996B2 (en) * 2002-07-25 2005-12-27 Heidelberger Druckmaschinen Ag Flat printing material-processing machine with an auxiliary pile carrier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD261574A1 (de) * 1987-05-29 1988-11-02 Polygraph Leipzig Bogenleiteinrichtung
DE19713919C1 (de) 1997-04-04 1998-07-02 Kba Planeta Ag Bogenleiteinrichtung für Bogenanleger
DE29916690U1 (de) * 1999-09-22 1999-12-09 Roland Man Druckmasch Bogenleiteinrichtung für Bogenanleger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482833A (en) * 1967-09-25 1969-12-09 Miller Printing Machinery Co Sheet feeder assembly
US4430012A (en) * 1981-04-06 1984-02-07 Zenith Radio Corporation Paper guide for line printer
US5039086A (en) * 1988-09-02 1991-08-13 Hitachi, Ltd. Method and apparatus for adjusting posture of sheets
US5863037A (en) * 1995-10-06 1999-01-26 Heidelberger Druckmaschinen Ag Sheet guide device for sheet feeders
US5915688A (en) * 1995-11-09 1999-06-29 Heidelberger Druckmaschinen Ag Device for forming an auxiliary sheet pile during a nonstop pile change in a delivery of a printing press
US6978996B2 (en) * 2002-07-25 2005-12-27 Heidelberger Druckmaschinen Ag Flat printing material-processing machine with an auxiliary pile carrier
US20040201166A1 (en) * 2003-04-11 2004-10-14 Hans Butterfass Method of feeding sheets to a sheet-processing machine, sheet-smoothing method and device
US20050016401A1 (en) * 2003-07-24 2005-01-27 Miyakoshi Printing Machinery Co., Ltd. Rotary press

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103587983A (zh) * 2013-11-18 2014-02-19 杭州惠宝机电有限公司 一种吸风式送纸构件
US20160325960A1 (en) * 2015-05-06 2016-11-10 Xerox Corporation System, apparatus and method for dampening and stabilizing automation picking and stacking
US9815653B2 (en) * 2015-05-06 2017-11-14 Xerox Corporation System, apparatus and method for damping and stabilizing automation picking and stacking
CN106608553A (zh) * 2015-10-23 2017-05-03 杭州惠宝机电有限公司 双风机分格吸风送纸装置
US11214112B2 (en) 2017-06-14 2022-01-04 ThyssenKrupp Federn und Stabilisatoren GmbH Stabilizer bar adhesive mount for a vehicle stabilizer bar, vehicle stabilizer bar having a stabilizer bar adhesive mount, and method for forming a stabilizer bar adhesive mount on a vehicle stabilizer bar

Also Published As

Publication number Publication date
EP1770036A1 (de) 2007-04-04
EP1770036B1 (de) 2013-01-16
JP3154365U (ja) 2009-10-15
JP2007091474A (ja) 2007-04-12
DE102005046685A1 (de) 2007-04-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HEIDELBERGER DRUCKMASCHINEN AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHMITT, MANFRED;REEL/FRAME:018357/0436

Effective date: 20060925

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION