EP0366611B1 - Dispositif pour former un pli supplémentaire pour plieuses de rotatives d'impression - Google Patents

Dispositif pour former un pli supplémentaire pour plieuses de rotatives d'impression Download PDF

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Publication number
EP0366611B1
EP0366611B1 EP89810789A EP89810789A EP0366611B1 EP 0366611 B1 EP0366611 B1 EP 0366611B1 EP 89810789 A EP89810789 A EP 89810789A EP 89810789 A EP89810789 A EP 89810789A EP 0366611 B1 EP0366611 B1 EP 0366611B1
Authority
EP
European Patent Office
Prior art keywords
folding
printing
region
copy
fold
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
EP89810789A
Other languages
German (de)
English (en)
Other versions
EP0366611A2 (fr
EP0366611A3 (fr
Inventor
Eduard Von Hein
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik 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 Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Publication of EP0366611A2 publication Critical patent/EP0366611A2/fr
Publication of EP0366611A3 publication Critical patent/EP0366611A3/fr
Application granted granted Critical
Publication of EP0366611B1 publication Critical patent/EP0366611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/16—Rotary folders
    • B65H45/161—Flying tuck folders

Definitions

  • the invention relates to a device for producing an additional fold in folders of rotary printing presses according to the preamble of claim 1.
  • Folding devices of the type mentioned above are known. Folding takes place at full paper running speed by means of a rotating folding knife which emerges from the surface of a rotating drum, the folding knife tip showing the printed copy to be folded or. Print copy package pushes into two oppositely driven folding rollers.
  • a disadvantage of these devices is the folding away at a high paper running speed. This leads to damage due to the whip effect occurring at the trailing ends of the printed copies.
  • a device for producing an additional fold is known from US Pat. No. 1,890,971, the fold rollers of which are provided with knurled areas for better grasping of the fold products. Except for these Knurlings have a uniform diameter over their entire circumference, with the exception of a narrow end area between a gear wheel attached to one end of each folding roller and a circumferential knurling spaced apart therefrom, the intermediate area here having a smaller diameter than the rest of the two folding rollers, so that the longitudinal fold the continuous folding products are not subjected to additional rolling. Damage to the trailing ends of the printed copies as a result of a whip effect cannot be avoided by this known device.
  • the object of the present invention is to develop a device for producing a further fold of the type specified in the preamble of patent claim 1 in such a way that damage to the trailing ends of the printed copies to be folded due to the inevitably occurring whip effect can be reliably avoided.
  • the advantages achieved with the invention are based on the fact that, due to the corresponding configuration of at least one folding roller, the trailing ends of the printed copies can "flutter", that is to say the unavoidable whip effect occurs, but no folds can be rolled into the trailing ends of the printed copies, so that damage to the ends of the printed copies is reliably avoided and the printed copies remain wrinkle-free with the exception of the desired folds.
  • the middle third of the length of the printed copy is additionally guided with the tapes by remaining areas of the folding roller surface without the middle part of the printed copy being rolled out between the folding rollers. This enables high folding speeds in high folding quality.
  • the folding rollers 4, 5 grip the printed copy 2 introduced into the folding nip by the folding knife 3, form the fold 32 and guide the printed copy 2 to the delivery wheel 13 with the aid of the conveyor belt system 6, 7.
  • the folding rollers 4 and 5 have cutouts 14 and 15, respectively. These cutouts 14 and 15 enable the trailing end 16 of the printed copy 2 to flutter freely, while the printed copy 2 is fed to the delivery wheel 13 through the belts 17 and 18 of the conveyor belt system 6, 7.
  • Fig. 3 shows schematically how the folding rollers 4 and 5 are designed.
  • a printed copy 2 was drawn in with a dashed line to show which area of the printed copy 2 touches where the folding roller 4 and 5, respectively.
  • the folding roller 4 or 5 is rotatably and drivably mounted with its axes 19 and 20 in the pairs of pivot levers 8 and 9, respectively.
  • the part 21 of the folding roller surface which forms the fold of the printed copy 2 is continuous and has only incisions 22 and 23 for guiding the strips 17 and 18, respectively. This part 21, which forms the fold of the printed copy, extends over approximately a third of the length of the printed copy 2 when viewed in the unwinding direction.
  • the first area 24 adjoining the part 21 of the folding rollers 4 and 5 is provided with a recess 25 which is delimited on the left and right by the remaining areas 26 and 27.
  • the width of the cutout 25 is dimensioned such that the printed copy 2 comes to rest on both sides with the edge zones on the remaining surfaces 26 and 27.
  • guide rings 28, 29 are arranged to support the bands 17 and 18, respectively.
  • the length of the first area 24 corresponds to approximately one third of the length of the printed copy 2, which means that the second third of the printed copy covers this first area 24 when viewed in the unwinding direction.
  • the trailing end of the printed copy 2 can flutter freely in this second region 30.
  • the folds caused by the whip effect and the resulting fluttering of the printed copies 2 are not rolled in, but they are smoothed out when the printed copies 2 are transported, since these are only held by the belts 17 and 18.

Claims (3)

  1. Dispositif pour réaliser un pli supplémentaire dans un exemplaire imprimé (2) déjà plié au moins une fois, sur la plieuse d'une presse rotative d'imprimerie, ce dispositif comportant :
    a) - un tambour support pour une lame de pliage,
    b) - une lame de pliage (3) montée sur ce tambour support,
    c) - deux rouleaux de pliage (4,5) qui tournent en sens opposés et dont le mouvement est synchronisé avec le mouvement d'arrivée des exemplaires imprimés (2), l'interstice ménagé entre ces deux rouleaux coïncidant avec la lame de pliage (3),
    d) - et un système de bandes de transport (6,7) entraîné par les rouleaux de pliage (4,5), pour évacuer les exemplaires imprimés (2) qui ont été pliés,
    caractérisé par les particularités suivantes :
    e)- les rouleaux de pliage (4,5) comportent une partie (21) destinée à assurer la formation du pli (32) de chaque exemplaire imprimé, dont la longueur correspond sensiblement au premier tiers de la longueur de l'exemplaire imprimé (2) dans le sens de la périphérie ;
    f)- au moins l'un des rouleaux de pliage (4,5) présente une première zone (24) qui fait suite à la partie (21) prévue pour la formation du pli, dans le sens périphérique, cette zone comportant des évidements (25) et des plages résiduelles d'appui (26,27), ces plages d'appui (26,27) servant à maintenir l'exemplaire imprimé (2) pendant le mouvement qu'il poursuit dans le système de transport ;
    g)- cette première zone (24) pourvue d'évidements(25) et de plages résiduelles d'appui (26,27) correspond sensiblement au deuxième tiers de la longueur de l'exemplaire imprimé (2) ;
    h)- une deuxième zone (30) des rouleaux de pliage (4,5), sur laquelle vient s'appliquer la partie terminale (31) de l'exemplaire imprimé (2) qui vient d'être plié, est complètement évidée à l'exception des parties de guidage (28,29) nécessaires pour le système de transport (6,7).
  2. Dispositif selon la revendication 1, caractérisé en ce que les plages résiduelles d'appui (26,27) sont prévues dans la première zone (24) d'au moins l'un des rouleaux de pliage (4,5), en regard des bordures latérales de l'exemplaire imprimé.
  3. Dispositif selon la revendication 1, caractérisé en ce que les plages résiduelles d'appui (26,27) sont prévues dans la première zone (24) d'au moins l'un des rouleaux de pliage (4,5), à l'endroit de la zone médiane de l'exemplaire imprimé (2).
EP89810789A 1988-10-25 1989-10-18 Dispositif pour former un pli supplémentaire pour plieuses de rotatives d'impression Expired - Lifetime EP0366611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836342A DE3836342A1 (de) 1988-10-25 1988-10-25 Vorrichtung zur herstellung eines zusaetzlichen falzes in falzapparaten von rotationsdruckmaschinen
DE3836342 1988-10-28

Publications (3)

Publication Number Publication Date
EP0366611A2 EP0366611A2 (fr) 1990-05-02
EP0366611A3 EP0366611A3 (fr) 1991-04-03
EP0366611B1 true EP0366611B1 (fr) 1994-05-04

Family

ID=6365888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810789A Expired - Lifetime EP0366611B1 (fr) 1988-10-25 1989-10-18 Dispositif pour former un pli supplémentaire pour plieuses de rotatives d'impression

Country Status (4)

Country Link
US (1) US5007891A (fr)
EP (1) EP0366611B1 (fr)
JP (1) JP2606744B2 (fr)
DE (1) DE3836342A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0612879B1 (fr) * 1993-02-18 1995-02-08 Jensen Ag Burgdorf Appareil de pliage automatique de pièces de linge
DE29511605U1 (de) * 1995-07-19 1995-08-31 Roland Man Druckmasch Trommelfalzvorrichtung für eine Rotationsdruckmaschine
DE19702252A1 (de) * 1997-01-23 1998-07-30 Roland Man Druckmasch Falzwalzen einer Vorrichtung zum Längsfalzen
JP3257980B2 (ja) * 1998-05-13 2002-02-18 キヤノンアプテックス株式会社 シート処理装置及び画像形成装置
DE19826515A1 (de) * 1998-06-15 1999-12-16 Roland Man Druckmasch Falzwalzen einer Vorrichtung zum Längsfalzen
DE19956248A1 (de) * 1999-11-23 2001-05-31 Heidelberger Druckmasch Ag Vorrichtung zum Falzen flächiger Exemplare
JP4379561B2 (ja) * 2001-01-30 2009-12-09 キヤノンファインテック株式会社 シート処理装置及びこれを備えた画像形成装置
US6878104B2 (en) * 2001-10-05 2005-04-12 Hewlett-Packard Development Company, L.P. Variable media thickness folding method
JP3752469B2 (ja) * 2002-05-28 2006-03-08 ニスカ株式会社 シート後処理装置及び画像形成装置
SE523007C2 (sv) * 2002-07-04 2004-03-23 Plockmatic Int Ab Valsanordning vid häft- och falsmaskin
DE10304534A1 (de) * 2003-02-04 2004-08-05 Man Roland Druckmaschinen Ag Falzwalze einer Falzvorrichtung und Verfahren zu ihrer Herstellung
JP4859570B2 (ja) * 2006-07-14 2012-01-25 三菱重工印刷紙工機械株式会社 ウェブ折り畳み装置及び輪転印刷機
FR2921353B1 (fr) * 2007-09-24 2010-06-18 Goss Int Montataire Sa Rouleau de pliage et plieuse correspondante
DE102014007495A1 (de) 2014-05-23 2015-11-26 Manroland Web Systems Gmbh Falzwalze mit gummielastischen Einlagen
DE102018116946A1 (de) * 2018-07-12 2020-01-16 Manroland Goss Web Systems Gmbh Falzvorrichtung
DE102020111152A1 (de) 2020-04-23 2021-10-28 Manroland Goss Web Systems Gmbh Falzwalze mit Beschichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890971A (en) * 1931-06-10 1932-12-13 Cottrell C B & Sons Co Signature folding machine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US308214A (en) * 1884-11-18 Paper-folding machine
US1120771A (en) * 1914-03-14 1914-12-15 Charles Wagner Lithographic press.
DE363709C (de) * 1919-11-12 1922-11-13 Paul Grothe Falzmaschine mit unter oder an der Falzstelle liegenden Foerderwalzen
US1501774A (en) * 1922-02-18 1924-07-15 Frank W Heeter Folding machine
US1581677A (en) * 1924-09-12 1926-04-20 Great Eastern Laundry Machiner Sheet-folding mechanism
US1693147A (en) * 1927-07-01 1928-11-27 Chambers Brothers Co Sheet folding
US3576051A (en) * 1969-05-14 1971-04-27 Petro Tex Chem Corp Apparatus for producing thermoplastic film
DE2837392C3 (de) * 1978-08-26 1981-04-02 Koenig & Bauer AG, 8700 Würzburg Längsfalzvorrichtung
DE2846191C3 (de) * 1978-10-24 1981-08-13 Koenig & Bauer AG, 8700 Würzburg Falzapparat für Rollenrotationsdruckmaschinen
DE2912839A1 (de) * 1979-03-30 1980-10-16 Meteor Siegen Apparat Schmeck Vorrichtung zum falzen von bogen aus papier o.dgl.
US4545782A (en) * 1983-01-20 1985-10-08 Rockwell International Corporation Anti-dog-ear device for a folding apparatus
JPS61176150U (fr) * 1985-03-30 1986-11-04
JPH042934Y2 (fr) * 1986-03-28 1992-01-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890971A (en) * 1931-06-10 1932-12-13 Cottrell C B & Sons Co Signature folding machine

Also Published As

Publication number Publication date
EP0366611A2 (fr) 1990-05-02
EP0366611A3 (fr) 1991-04-03
DE3836342C2 (fr) 1992-04-02
JP2606744B2 (ja) 1997-05-07
JPH02215654A (ja) 1990-08-28
DE3836342A1 (de) 1990-04-26
US5007891A (en) 1991-04-16

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