EP1040061B1 - Dispositif pour influencer des signatures par voie electrostatique - Google Patents

Dispositif pour influencer des signatures par voie electrostatique Download PDF

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Publication number
EP1040061B1
EP1040061B1 EP98966538A EP98966538A EP1040061B1 EP 1040061 B1 EP1040061 B1 EP 1040061B1 EP 98966538 A EP98966538 A EP 98966538A EP 98966538 A EP98966538 A EP 98966538A EP 1040061 B1 EP1040061 B1 EP 1040061B1
Authority
EP
European Patent Office
Prior art keywords
voltage
conductors
influencing
folding
electrode
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
EP98966538A
Other languages
German (de)
English (en)
Other versions
EP1040061A1 (fr
Inventor
Reinhard Georg Gross
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1040061A1 publication Critical patent/EP1040061A1/fr
Application granted granted Critical
Publication of EP1040061B1 publication Critical patent/EP1040061B1/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
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/167—Rotary folders with folding jaw cylinders having associated sheet guide means
    • 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
    • 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
    • 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
    • B65H5/004—Feeding articles separated from piles; Feeding articles to machines using electrostatic force
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/532—Modifying characteristics of surface of parts in contact with handled material
    • B65H2301/5322—Generating electrostatic charge at said surface

Definitions

  • the invention relates to a device for electrostatically influencing signatures according to the preamble of claim 1.
  • DE 44 43 368 A1 describes a device for electrostatically influencing webs in rotary printing presses by means of pulsed electrodes which are supplied with electrical voltage.
  • FR 25 86 660 A1, US 45 26 357 A and US 55 31 436 A disclose sheet guiding devices, an influential electrode consisting of at least two conductors and being arranged between insulating materials.
  • the invention has for its object to provide a device for electrostatically influencing signatures or sheets.
  • An influential electrode 1 preferably of a flat design, has two conductors 2 which are electrically separated from one another; 3, each with its beginning 4; 6 are connected to a plus output 7 or a minus output 8 of a voltage source 9. Ends 11; 12 the conductor 2; 3 are provided without connection to one another or to the voltage source 9.
  • the head 2; 3 are e.g. B. comb-shaped, the "prongs", d. H. the free ends of each comb-like conductor 2, 3 interlock, d. H. a "prong" of the conductor 2 lies next to a "prong" of the conductor 3 etc. without contact.
  • the head 2; 3 can e.g. B. consist of copper and on an electrically non-conductive base, for. B. an insulating film 13 may be applied, for. B. by coating. Another insulating film 14 covers the conductor 2; 3 from.
  • the head 2; 3, each spaced at approximately the same distance from one another, can also extend in a zigzag shape, spiral shape or in another shape over a large area in an influence electrode 1.
  • the head 2; 3 can also be made of semiconductor material, e.g. B. carbon exist.
  • the influence electrode 1 is thus flexible, has a thickness d of approximately 0.4 mm and can be z. B. be connected to a self-adhesive film, not shown (Fig. 1 and 2). After removing a protective layer, the flexible influence electrode 1 with the adhesive side on a machine part, for. B. glued baffle. On the outside of the influence electrode 1 opposite the adhesive side, the insulating film 13 or 14 can be coated with a non-stick coating, e.g. B. made of PTFE.
  • the influence electrodes 1 can be made flat in a modular design, are flexible and can therefore be adapted to concave or convex curved surfaces of machine components. A plurality of influence electrodes 1 can also be arranged side by side and / or one behind the other. Furthermore, cutouts or recesses can also be contained in the insulating material film 13, 14 without the conductor 2, 3 being damaged in the process.
  • Each influence electrode 1 is 4 at the beginning; 6 of their leaders 2; 3 with contacts 64; 66 provided.
  • the connection contacts 64; 66 are on lines 67; 68 with the plus output 7 or the minus output 8 of the voltage source 9 in connection, which generates an adjustable equalizing voltage 69 in the range from 1,000 volts to 10,000 volts at a pulse frequency of five hertz to 20 kilohertz.
  • the voltage source 9 is by means of lines 71; 72 can be connected to an AC network 73.
  • the influence electrode 1 is arranged at a selected point in the transport of a sheet 17 or a signature 18 in a rotary printing press.
  • a longitudinal folding device 19 for producing a so-called third fold consists in a known manner of a driven pair of folding rollers 21; 22, a cyclically up and down longitudinal folding knife 23, a plurality of upper and lower driven conveyor belts 24; 26 and pressure brushes 27.
  • folding rollers 21; 22 there is a left and a right folding table 28; 29, the sides close to the folding rollers cheeks 31; 32, which in the direction of the inlet gusset 33 of the folding rollers 21; 22 are inclined.
  • the folding table 28 On both sides of a third fold to be introduced into a signature 18 are on the folding table 28; 29 influence electrodes 34; 36 applied, each of which is connected to a voltage source 9 (FIG. 3).
  • the influence electrodes 34; 36 are preferably seen in a rear area of the folding table 28 in the direction of production; 29 and arranged flat on this, e.g. B. glued on. This has the advantage that the rear corners of the signature 18 drawn into the folding roller nip at high speed after leaving the conveyor belts 24; 26 on the folding table 28; 29 can be held and therefore cannot turn or fold.
  • a transverse folding device 37 of a folding apparatus consists of a folding jaw cylinder 38 with three folding jaw systems 39 evenly distributed over the circumference, and a collecting cylinder 41.
  • a baffle plate 47 is arranged, which has a flat influence electrode 48 on its side facing the transverse folding device 37 (FIG. 4).
  • the part 51 of the signature 49 which previously ran on the collecting cylinder 41 becomes after the withdrawal of the puncture systems 43 in FIG Accelerated opposite direction.
  • the part 51 is drawn in the vicinity of or at the influenza electrode 48, so that a "corner formation” or tearing of the part 51 is avoided.
  • a pulsed direct voltage preferably in the range between 2,500 volts and 3,500 volts, with a preferred plus frequency between 50 Hertz and 100 Hertz is fed to the influence electrode 48.
  • This pulsed DC voltage ensures a constant opening and closing. Recharge the influenza electrode so that it is highly effective.
  • a transfer drum 52, a turning drum 53 and a printing cylinder 54 of a sheet-fed rotary printing press are shown (FIG. 5), each of which has grippers on their peripheries for transferring or turning a sheet 17.
  • Below the transfer drum 52 is the beginning 56 of a sheet guide plate 57 which is guided with its end 58 up to the vicinity of an inlet gusset 59 located between the printing cylinder 54 and the reversing drum 53.
  • the sheet guide plate 57 has bores, not shown, and is connected to a blown air supply 61.
  • the influence electrode 62 On the side of the sheet guide plate 57 facing the turning drum 53 and the transfer drum 52 there is one Flat influence electrode 62 glued on, which in turn is connected to a voltage source 9, not shown.
  • the influence electrode 62 also has holes, not shown, which are arranged outside the course of the strand-shaped semiconductors and are connected to the bores in the sheet guide plate 57.
  • the pulse frequency of the voltage source 9 is appropriately proportional to the machine speed and can, for. B. can be set by means of a pulse circuit, not shown.
  • the pulse frequency is preferably in the range from 50 to 100 Hertz.
  • the voltage source 9 can have an adjustable alternating voltage 74 in emit a range between 1,000 volts and 10,000 volts and a frequency in a range between 5 hertz and 20 kilohertz. 1).
  • the voltage is preferably between 2,500 volts and 3,500 volts at a preferred pulse frequency between 50 Hertz and 100 Hertz.
  • influenza electrodes 1; 34, 36; 48; 62 on a sheet 17 or a signature 18 is further reinforced if this is a residual moisture, for. B. have up to 20%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (13)

  1. Dispositif pour influencer par voie électrostatique des signatures (18) ou des feuilles (17), le long d'une voie de transport dans une machine à imprimer rotative, à l'aide d'au moins une électrode d'influence (1 ; 34, 36 ; 48 ; 62), sollicitée par une tension électrique, caractérisé en ce que l'électrode d'influence (1 ; 34, 36 ; 48 ; 62) présente chaque fois au moins deux conducteurs (2 ; 3) disposés entre des matériaux isolants (3 ; 4), en ce que la tension électrique est une tension pulsée, et en ce que la fréquence de pulsation de la tension est proportionnelle à la vitesse de rotation de la machine.
  2. Dispositif selon la revendication 1, caractérisé en ce que les conducteurs (2 ; 3) présentent une forme de section transversale quelconque et sont disposés en surface dans l'électrode d'influence (1 ; 34, 36 ; 48 ; 62).
  3. Dispositif selon la revendication 1, caractérisé en ce que les amorces (4 ; 6) des conducteurs (2 ; 3) sont reliées chacune séparément (7, 9, respectivement 8, 9) à une source de tension (9), en ce que les extrémités (11 ; 12) des conducteurs (2 ; 3) sont séparées électriquement l'une de l'autre, en ce que les conducteurs (2 ; 3) sont disposés sensiblement à même distance les uns des autres.
  4. Dispositif selon la revendication 1, caractérisé en ce que la tension pulsée est d'une valeur comprise dans la plage entre 1 000 volts et 10 000 Volts.
  5. Dispositif selon la revendication 1, caractérisé en ce que la fréquence de la tension pulsée est située dans la place comprise entre 5 hertz et 20 kilohertz.
  6. Dispositif selon la revendication 1, caractérisé en ce que la tension pulsée est une tension continue.
  7. Dispositif selon la revendication 1, caractérisé en ce que tension pulsée est une tension alternative.
  8. Dispositif selon la revendication 1, caractérisé en ce que les conducteurs (2 ; 3) sont chacun réalisés du genre de chambres et s'engagent les uns les autres par leurs extrémités libres.
  9. Dispositif selon la revendication 1, caractérisé en ce que les conducteurs (2 ; 3) sont chacun réalisés du genre et sont disposés les uns à côtés des autres, à distance mutuelle.
  10. Dispositif selon la revendication 1, caractérisé en ce que les conducteurs (2 ; 4) sont chacun réalisés en forme de zigzag et sont disposés les uns à côté des autres, à distance mutuelle.
  11. Dispositif selon la revendication 1, caractérisé en ce que les électrodes d'influence (34 ; 36) sont disposées chaque fois des deux côtés d'un troisième pli, à réaliser dans une signature (18), sur une table de pliage (28, 29).
  12. Dispositif selon la revendication 1, caractérisé en ce que l'électrode d'influence (62) plate est prévue pour un fonctionnement en retournement dans une machine à imprimer rotative à feuilles, entre un gousset d'entrée (59), formé entre un cylindre d'impression (54) et un tambour de retournement (53), ainsi qu'un point situé au-dessous du tambour de transfert (52).
  13. Dispositif selon la revendication 1, caractérisé en ce que l'électrode d'influence (48) est disposée après le gousset de sortie (46) d'un cylindre porte-lame de pliage (41) et d'un cylindre à volet de pliage (38).
EP98966538A 1997-12-16 1998-12-14 Dispositif pour influencer des signatures par voie electrostatique Expired - Lifetime EP1040061B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19755745 1997-12-16
DE19755745A DE19755745C2 (de) 1997-12-16 1997-12-16 Einrichtung zum elektrostatischen Beeinflussen von Signaturen
PCT/DE1998/003659 WO1999030995A1 (fr) 1997-12-16 1998-12-14 Dispositif pour influencer des signatures par voie electrostatique

Publications (2)

Publication Number Publication Date
EP1040061A1 EP1040061A1 (fr) 2000-10-04
EP1040061B1 true EP1040061B1 (fr) 2001-09-19

Family

ID=7852002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966538A Expired - Lifetime EP1040061B1 (fr) 1997-12-16 1998-12-14 Dispositif pour influencer des signatures par voie electrostatique

Country Status (3)

Country Link
EP (1) EP1040061B1 (fr)
DE (2) DE19755745C2 (fr)
WO (1) WO1999030995A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049643C5 (de) * 2006-11-06 2019-04-04 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zum Wenden eines Bogens während des Förderns durch eine Druckmaschine
EP2128064B1 (fr) * 2008-05-29 2013-04-03 Simco Nederland B.V. Procédé et dispositif pour maintenir ensemble une pile d'objets non conductrice électriquement et son unité d'électrode
CH705738A1 (de) 2011-11-11 2013-05-15 Ferag Ag Verfahren zum Applizieren von flächigen Ergänzungsprodukten an Basisprodukten sowie Vorrichtung zur Durchführung des Verfahrens.
DE102019118568A1 (de) 2019-07-09 2021-01-14 Koenig & Bauer Ag Bogenverarbeitende Maschine mit einer Wendeeinrichtung und Verfahren zum Fördern von Bogen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067523A (en) * 1980-01-18 1981-07-30 Computer Instrumentation Ltd Holding sheet material on to a drum
US4526357A (en) * 1983-01-03 1985-07-02 Coulter Systems Corporation Electro-static sheet feeding method and apparatus
FR2586660B1 (fr) * 1985-08-27 1988-04-01 Aerospatiale Manipulateur electrostatique pour materiaux en feuilles
DE3601660A1 (de) * 1986-01-21 1987-07-23 Eltex Elektrostatik Gmbh Verfahren und vorrichtung zum falzen von aus einer fortlaufenden materialbahn abgeschnittenen bogen
US5064180A (en) * 1990-04-09 1991-11-12 Harris Graphics Corporation Electrostatic diverter
JP2718626B2 (ja) * 1993-11-16 1998-02-25 キヤノン株式会社 シート材搬送装置
DE4443368A1 (de) * 1994-12-06 1996-06-13 Pogatzki Volkmar W Dr Rotationstiefdruckwerk mit spannungsbeaufschlagtem Presseur

Also Published As

Publication number Publication date
DE59801556D1 (de) 2001-10-25
WO1999030995A1 (fr) 1999-06-24
EP1040061A1 (fr) 2000-10-04
DE19755745C2 (de) 2002-05-08
DE19755745A1 (de) 1999-06-24

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