EP2008957B1 - Bremsvorrichtung für Flacherzeugnisse und entsprechende Biegepresse - Google Patents

Bremsvorrichtung für Flacherzeugnisse und entsprechende Biegepresse Download PDF

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Publication number
EP2008957B1
EP2008957B1 EP08158853A EP08158853A EP2008957B1 EP 2008957 B1 EP2008957 B1 EP 2008957B1 EP 08158853 A EP08158853 A EP 08158853A EP 08158853 A EP08158853 A EP 08158853A EP 2008957 B1 EP2008957 B1 EP 2008957B1
Authority
EP
European Patent Office
Prior art keywords
braking
eccentric element
brake shoe
braking device
rotation
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
EP08158853A
Other languages
English (en)
French (fr)
Other versions
EP2008957A1 (de
Inventor
Franck Chagnon
Philippe Herda
Thierry Melon
Jérôme PERES
Eric Pierda
Jean-François Robert
Philippe Robin
Thierry Vauchelle
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.)
Goss International Montataire SA
Original Assignee
Goss International Montataire SA
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 Goss International Montataire SA filed Critical Goss International Montataire SA
Publication of EP2008957A1 publication Critical patent/EP2008957A1/de
Application granted granted Critical
Publication of EP2008957B1 publication Critical patent/EP2008957B1/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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/14—Retarding or controlling the forward movement of articles as they approach stops
    • 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
    • B65H29/68—Reducing the speed of articles as they advance
    • 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
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • Document is known FR-A-2 793 229 such a braking device of a flat product.
  • This device uses an electromagnet to move the brake lining from its passage position to its braking position.
  • the invention aims to increase the reliability of the braking device, especially at high production rates.
  • the subject of the invention is a braking device of the indicated type, in which the drive means comprise an eccentric element which is movable in rotation and co-operates with the braking jaw, and in which the braking jaw comprises a face.
  • braking device directed to the flat product to be braked in the installed state and an actuating face disposed opposite the braking face, and the eccentric element cooperating with the actuating face, characterized in that the braking jaw comprises a base body and a wear member, and the wear member is in contact with the eccentric member.
  • the subject of the invention is also a folding machine, in particular a folding bending machine comprising a folding table and a braking device for bending flat products arriving on the folding table, characterized in that the braking device is equipped with a braking device as defined above.
  • the folder is characterized in that the braking device comprises means for controlling the eccentric element adapted to exclusively brake the downstream part of a flat product to be folded.
  • the folder 2 comprises a right-angle fold device 4, flat product conveying means 6 and a braking device 8 of a flat product.
  • the folder 2 comprises a frame 10 on which are mounted these different components.
  • the right-angle fold device 4 is provided with a right-angle fold blade 12 (see FIG. Figure 3 ) and two parallel folding rolls 14, 16.
  • the square folding device 4 is further provided with a folding table 18, provided with a folding slot 20.
  • the right-angle fold device 4 is adapted to fold a flat product by pushing this product. flattening through the bending slot 20 by the bending blade 12 and grasping it by the folding rolls 14, 16.
  • the conveying means 6 comprise parallel belts 21 adapted to bring a succession of flat products to be folded, such as printed signatures 23 or sheets printed on the folding table 18.
  • the braking device 8 is adapted to slow down or completely stop the products to be folded before folding.
  • the braking device 8 comprises a support 22 which is movable in translation in a direction perpendicular to the plane of the folding table 18.
  • the support 22 is displaceable, for example, in a direction perpendicular to the plane of the folding table 18 by means of a jack 24 fixed to the frame 10 (see Figure 3 ).
  • the braking device 8 further comprises a plurality of braking jaws 26 each of which is movable between a passage position of the flat product to be folded and a braking position of the flat product.
  • a passage position of the flat product to be folded When the braking jaw 26 is in its position of passage of the flat product, it is further away from the surface of the folding table 18 than when it is in its braking position of the flat product.
  • the braking jaw 26 comprises a braking face 28 directed towards the product to be folded 23 or the folding table 18 and an actuating face 30 disposed opposite the braking face 28.
  • Each braking jaw 26 consists of a base body 32, a brake lining 34 and a wear member 36.
  • the base body 32 is for example a metal block, in particular aluminum.
  • the brake lining 34 forms the braking surface 28 and may comprise either a plastic brake pad 34A or a brush 34B.
  • the brushes 34B may have different widths (see Figure 3 ), measured transversely to the conveying direction of the flat products.
  • the wear member 36 is a block which is, for example, made of bronze, and which has a concave friction surface. This friction surface forms the actuating face 30 directed away from the braking face 28.
  • the braking device 8 is provided with means for returning the braking jaw 26 towards its passage position.
  • These return means comprise a leaf spring 38, a first end is fixed to the support 22 and a second end is fixed to the brake jaw 26 and carries it.
  • the natural frequency of the blade 38 is different from the natural frequency of the rest of the folder. This prevents brake linings from being excited by the brake during operation.
  • the braking device 8 further comprises means for driving the jaw 26 from its passage position to its braking position.
  • These drive means comprise an eccentric element 40 rotatable about an axis of rotation X-X.
  • the eccentric member 40 has an outer surface 41 having a circle-shaped cross section whose axis is offset from the axis of rotation X-X.
  • the eccentric member 40 may be replaced by a cam having an outer surface 41 of non-circular section.
  • the eccentric element 40 is rotatable about the axis XX between a passage position corresponding to the passage position of the brake jaw 26 (see FIG. Figure 2 ) and a braking position corresponding to the braking position of the brake jaw 26.
  • the eccentric element 40 is fixed in rotation on a shaft 42 itself rotatable about the axis XX.
  • the eccentric element 40 applies with its outer surface 41 freely on the friction surface of the wear member 36 so that when the eccentric member 40 is in its passage position, the brake shoe 26 is freely movable from its position of passage to its braking position by removing the wear member 36 from the eccentric member 40 and against the return force of the spring 38.
  • the eccentric member 40 is made of a harder material than the wear member 36, for example of steel.
  • the leaf spring 38 maintains the braking jaw 26 in its position of passage to the idle state, and recalls the braking jaw 26 towards its passage position when the latter is in its braking position.
  • the braking device 8 comprises means for driving in rotation the shaft 42.
  • these drive means comprise an electric motor 44 for each shaft 42, motor 44 whose output shaft is connected by by means of a double cardan joint connection 46 to the shaft 42.
  • the double universal joint connection allows the height adjustment of the assembly consisting of leaf springs 38, blade support 22, and shafts 42, knowing that the motors 44 are fixed to the frame 10. In addition, it allows to move the brake linings between a support position and an off-position on the folding table 18.
  • a shaft 42 comprises at least two eccentric elements 40, each of which cooperates with a wear member 36, thus with a brake lining.
  • two or more brake linings are controllable by a single shaft 42.
  • the shaft 42 is rotatably accommodated to the support 22 but also fixed relative thereto while each motor 44 is fixed to the frame 10.
  • the folder 2 further comprises control means 50 for controlling each motor 44 and consequently the eccentric element 40 in a manner synchronized with the arrival of the flat products to be folded on the folding table 18.
  • control means 50 comprise a sensor 52 raising the position and / or the speed of the products to be folded 23 and delivering a signal corresponding to a control unit 54.
  • the control unit 54 is connected to each motor 44
  • the control means 50 are adapted to bring the eccentric member 40 in rotation so that the braking jaws 26 apply exclusively to a downstream part of a flat product to be bent 23.
  • the upstream part of the product plate 23 is not braked by contact with the brake lining 26.
  • the folder according to the invention is advantageous since the eccentric members 40 can be rotated at a high speed. As a result, the folder can be driven at high bend rates, for example, 70,000 copies per hour.
  • the motors 44 are synchronized with a drive motor of the folder 2.
  • the two motors 44 can be controlled so that the phase of rotation of the eccentric elements 40 associated with a motor 44 is shifted from the phase of rotation of the eccentric elements 40 associated with another motor 44.
  • two motors 44 can independently drive brake linings arranged on either side of the folding blade 12 in each case. In this case it is possible to shift the action of the brake linings located on both sides of the blade 12, to straighten the cross of the notebook. In other words, the variation of the motors 44 of the brake jaws 26 located on either side of the blade 12 makes it possible to correct the cross-section of a booklet that is not perpendicular to the blade 12.
  • the phasing of the motors 44 with respect to the signatures 23 is modifiable.
  • the cardan joint 46 and the motors 44 have been replaced by a single driven shaft 42 by a single motor 44 , a second shaft 42A being driven through a toothed belt connection 50.
  • the two shafts are fixed by translation with respect to each other.
  • the advantage of this variant is its low cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (11)

  1. Vorrichtung zum Bremsen eines flachen Produktes, insbesondere einer Signatur, des Typs, der aufweist;
    - eine Stütze (22),
    - eine Backe zum Bremsen (26) des flachen Produktes (23), die zwischen einer Durchgangsposition des flachen Produktes und einer Bremsposition des flachen Produktes bewegbar ist,
    - Mittel zum Antreiben (40, 42) der Bremsbacke (26) aus ihrer Durchgangsposition in Richtung zu ihrer Bremsposition,
    wobei die Antriebsmittel ein exzentrisches Element (40) aufweisen, das drehbar bewegbar ist und mit der Bremsbacke (26) zusammenwirkt, und
    wobei die Bremsbacke (26) aufweist: eine Bremsseite (28), die im installierten Zustand in Richtung zu dem abzubremsenden flachen Produkt (23) ausgerichtet ist, und eine Betätigungsseite (30), die entgegengesetzt zu der Bremsseite angeordnet ist, wobei das exzentrische Element (40) mit der Betätigungsseite (30) zusammenwirkt,
    dadurch gekennzeichnet, dass die Bremsbacke (26) einen Basiskörper (32) und ein Verschleißelement (36) aufweist, und dass das Verschleißelement (36) mit dem exzentrischen Element (40) in Kontakt ist.
  2. Bremsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das exzentrische Element (40) insbesondere zwischen einer Durchgangsposition, die mit der Durchgangsposition der Bremsbacke (26) korrespondiert, und einer Bremsposition, die mit der Bremsposition der Bremsbacke (26) korrespondiert, drehbar bewegbar ist, und dass die Bremsbacke (26) zwischen, ihrer Durchgangsposition und ihrer Bremsposition frei bewegbar ist, wenn das exzentrische Element (40) in seiner Durchgangsposition ist.
  3. Bremsvorrichtung gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Verschleißelement (36) aus einem weniger harten Material als das exzentrische Element (40) hergestellt ist und insbesondere aus Bronze ist.
  4. Bremsvorrichtung gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das exzentrische Element (40) aus einem härteren Material als das Verschleißelement (36), zum Beispiel aus Strahl hergestellt ist.
  5. Bremsvorrichtung gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Mittel zum Zurückholen der Bremsbacke (26) in Richtung ihrer Durchgangsposition, insbesondere eine Feder (38) aufweist.
  6. Bremsvorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, dass die Rückholmittel eine Blattfeder (38) aufweisen, die an der Bremsbacke (26) und an der Stütze (22) befestigt ist.
  7. Bremsvorrichtung gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Mittel zum drehbaren Antreiben des exzentrischen Elements (40), insbesondere einen Motor (44) und eine Kardangelenkverbindung (46) aufweist.
  8. Bremsvorrichtung gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das exzentrische Element (40) um eine Rotationsachse (X-X) drehbar bewegbar ist, wobei das exzentrische Element (40) eine Außenfläche (41) aufweist, die einen Querschnitt in Kreisform hat, dessen Achse bezüglich der Rotationsachse (X-X) versetzt ist.
  9. Bremsvorrichtung gemäß irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das exzentrische Element (40) ein Nocken ist, der eine Außenfläche (41) mit nicht kreisförmigem Querschnitt hat.
  10. Faltmaschine, die ausgestattet ist mit einer Winkelfaltvorrichtung, aufweisend einen Falttisch (18), und mit einer Vorrichtung zum Bremsen von zu faltenden flachen Produkten (23), die auf dem Falttisch (18) ankommen, dadurch gekennzeichnet, dass die Bremsvorrichtung mit einer Bremsvorrichtung gemäß irgendeinem der vorhergehenden Ansprüche ausgestattet ist.
  11. Faltmaschine gemäß Anspruch 10, dadurch gekennzeichnet, dass die Bremsvorrichtung (8) Mittel zum Steuern des exzentrischen Elements aufweist, die angepasst sind, um ausschließlich den stromabwärtigen Teil eines zu faltenden flachen Produktes (23) zu bremsen.
EP08158853A 2007-06-28 2008-06-24 Bremsvorrichtung für Flacherzeugnisse und entsprechende Biegepresse Not-in-force EP2008957B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0756108A FR2918048B1 (fr) 2007-06-28 2007-06-28 Dispositif de freinage de produits plats et plieuse correspondante.

Publications (2)

Publication Number Publication Date
EP2008957A1 EP2008957A1 (de) 2008-12-31
EP2008957B1 true EP2008957B1 (de) 2012-08-15

Family

ID=38788051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08158853A Not-in-force EP2008957B1 (de) 2007-06-28 2008-06-24 Bremsvorrichtung für Flacherzeugnisse und entsprechende Biegepresse

Country Status (5)

Country Link
US (1) US7931268B2 (de)
EP (1) EP2008957B1 (de)
JP (1) JP2009007171A (de)
CN (1) CN101348197B (de)
FR (1) FR2918048B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003235B3 (de) * 2009-03-27 2010-07-08 Koenig & Bauer Aktiengesellschaft Verfahren zum Betreiben eines ein Falzmesser und einen Falztisch aufweisenden Längsfalzapparates und ein Längsfalzapparat
US20240270524A1 (en) * 2023-02-09 2024-08-15 Toshiba Tec Kabushiki Kaisha Sheet processing device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288456A (en) * 1927-04-15 1928-04-12 American Type Founders Co Improvements in or relating to sheet retarding mechanisms for use with sheet feeding mechanisms
GB654338A (en) * 1947-11-19 1951-06-13 Dexter Folder Co Improvements relating to sheet-feeding mechanism
US3507489A (en) * 1966-09-06 1970-04-21 Masson Scott Thrissell Eng Ltd Sheet feeding apparatus
GB1343303A (en) * 1971-03-02 1974-01-10 Polygraph Leipzig Method and apparatus for the accurately-registered feed of sheets to a printing machine
US4506873A (en) * 1984-03-01 1985-03-26 Faltin Hans G Braking means for moving paper products entering folders
IT1230509B (it) * 1988-10-11 1991-10-25 Fimi Spa Macchina e metodo per il rallentamento di una serie di fogli di lamiera viaggianti in stretta successione lungo una linea di produzione
DE3903381A1 (de) * 1989-02-04 1990-08-09 Frankenthal Ag Albert Vorrichtung zum abstoppen von falzprodukten
JP2744315B2 (ja) * 1990-02-06 1998-04-28 キヤノン株式会社 画像形成装置
FR2672544B1 (fr) * 1991-02-08 1995-10-06 Marinoni Harris Sa Plieuse de machine d'imprimerie a dispositif ralentisseur d'exemplaires envoyes dans un pli d'equerre de ladite plieuse.
GB2281069B (en) * 1993-08-17 1997-04-23 Rockwell Pmc Limited Folding apparatus
CH689977A5 (fr) * 1994-05-11 2000-02-29 Bobst Sa Dispositif de freinage d'éléments en plaque au sein d'une station de réception d'une machine de traitement de tels éléments.
DE19914177A1 (de) * 1999-03-29 2000-10-05 Heidelberger Druckmasch Ag Ausleger einer Bogen verarbeitenden Druckmaschine
DE19921169C2 (de) * 1999-05-07 2003-03-13 Roland Man Druckmasch Vorrichtung zum Abbremsen von Papierbögen
EP1720786B1 (de) * 2004-03-01 2008-04-02 Koenig & Bauer AG Längsfalzapparat mit einem bremsweg
DE102005007745A1 (de) * 2005-02-18 2006-08-31 Man Roland Druckmaschinen Ag Falzapparat für eine Druckmaschine

Also Published As

Publication number Publication date
US20090008870A1 (en) 2009-01-08
FR2918048B1 (fr) 2011-05-20
EP2008957A1 (de) 2008-12-31
JP2009007171A (ja) 2009-01-15
US7931268B2 (en) 2011-04-26
CN101348197A (zh) 2009-01-21
FR2918048A1 (fr) 2009-01-02
CN101348197B (zh) 2012-05-30

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