EP0451573A1 - Dispositif de dérivation pour mécanisme de pliage - Google Patents

Dispositif de dérivation pour mécanisme de pliage Download PDF

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Publication number
EP0451573A1
EP0451573A1 EP91104492A EP91104492A EP0451573A1 EP 0451573 A1 EP0451573 A1 EP 0451573A1 EP 91104492 A EP91104492 A EP 91104492A EP 91104492 A EP91104492 A EP 91104492A EP 0451573 A1 EP0451573 A1 EP 0451573A1
Authority
EP
European Patent Office
Prior art keywords
cylinders
deflecting
deflection
cylinder
charge
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.)
Granted
Application number
EP91104492A
Other languages
German (de)
English (en)
Other versions
EP0451573B1 (fr
Inventor
Mark Anthony Wingate
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
Publication of EP0451573A1 publication Critical patent/EP0451573A1/fr
Application granted granted Critical
Publication of EP0451573B1 publication Critical patent/EP0451573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • 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
    • B65H29/58—Article switches or diverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/24—Pile receivers multiple or compartmented, e.d. for alternate, programmed, or selective filling

Definitions

  • the invention relates to a folding unit arranged downstream of a web-fed rotary printing press.
  • the paper web guided by a web-fed rotary printing machine After the paper web guided by a web-fed rotary printing machine has been printed, it is fed to a folding unit, in which the printed products are processed (folding, cutting and sorting).
  • the focus of the invention relates to the redirection of printed copies, which makes it possible to divide the flow of printed copies through the folding unit into several flows for the purpose of displaying printed copies.
  • the deflection of a print copy stream is carried out, for example, by feeding the print copy stream to a switch which directs the individual print copies alternately in different directions.
  • the print copy stream is fed via the folding drum to a switch.
  • the switch is designed so that it can direct the print copy stream in two directions.
  • the leading edge of the respective printed copy is derived from the switch in a designated direction.
  • the disadvantage here is that the front edge of the printed copy hits the switch first, which can lead to damage to the printed copy. Furthermore, in this type of printed copy deflection, the leading edge is without direct guidance, since the printed copy is not held at the leading edge. The printed copy is therefore pushed loosely over the switch. Difficulties in paper transport can occur, the whole Can bring the transport system to a standstill. This often results in a limited processing speed as a result of traffic jams and dog ears, which are caused by fixed parts such as deflectors, guides, superstructures, etc.
  • the object of the invention is based on the object of eliminating the disadvantages of the prior art by optimizing the transport of printed copies in the area of the redirection of printed copies, as well as in the subsequent forwarding of the printed copies.
  • the advantage of the invention can be seen in the fact that the printed copies are drawn at the leading edge without mechanical action on the leading edge for the purpose of deflecting the flow of printed copies. Furthermore, due to the elimination of mechanical grippers, noise minimization and improved transfer accuracy can be achieved.
  • the elements mounted in the deflecting cylinder and electrostatically chargeable elements can be reversed, so that the printed copy can be drawn towards or deflected from the deflecting cylinder; i.e. After a certain dwell time on the deflection cylinder, the printed copy can be pushed off again after the deflection, which advantageously eliminates the need for mechanical devices for stripping or gripping the printed copies.
  • the deflecting cylinders are provided with channels which extend in the circumferential direction of the cylinder into the lateral surface of the Deflection cylinders are embedded. This arrangement advantageously results in the possibility that the printed copy scrapers or the grippers of the transfer cylinder or the output cylinder can engage in the channels of the deflecting cylinders, whereby an optimal lifting of the printed copy from the deflecting cylinder is achieved.
  • the mechanical grippers of the transport cylinders (transfer cylinders, output cylinders) arranged downstream of the deflection cylinders are also replaced by electrically chargeable elements. This advantageously results in a further minimization of the noise level as well as a further optimization of the transfer accuracy.
  • the print specimen removal device comprises a polarity reversal device for charging the element which has attracted the respective electrostatically charged print specimen for a given period of time, and as a result of which the print specimen is then repelled by the element.
  • an adjacent transport cylinder which is arranged downstream of at least one of the deflection cylinders in the running direction of the printed copies, is provided, which has electrostatically chargeable elements on its circumferential surface parallel to its axis of rotation and can be rotated in relation to the speed and phase of the respective deflection cylinder, so that if the printed copy is repelled by the respective element of the respective deflection cylinder, it is attracted and slowed down by an element of the transport cylinder.
  • Another embodiment provides that for electrostatically charging the elements of each Deflection cylinder on the axis of which there is an arrangement of slip rings.
  • a slip ring arrangement is provided, of which at least two slip rings are attached to the axis of the respective deflection cylinder and rotate therewith.
  • fixed brushes are in sliding contact with the slip rings via a high-voltage source, one of which is charged with a type of electrostatic charge and the other with a counterpole type of electrostatic charge.
  • the front edge of the printed copy 11 lies continuously on the element 3 and is held by it.
  • the rotation of the deflecting cylinder 1 deflects the printed copy from the previous transport direction in accordance with the direction of rotation of the deflecting cylinder 1, and its opposite side is guided via a guide element 13.
  • Print copy conveyor belt 15 feeds.
  • the printed copy conveyor belt 15 conveys the printed copy 11 and leads it to a stack 21 for delivery.
  • the elements 3 to 10 of the respective deflecting cylinders 1, 2 are charged with each cylinder revolution by electrodes 23, 24 which emit electrostatic charges and which are fed by a high-voltage source. This happens via a conventional slip ring arrangement 35 with slip rings 36 (FIG. 2), which are rotatably carried by the axis of the respective cylinder 1, 2 and are charged accordingly by the high-voltage source, by firmly attached brushes 37 in sliding contact with the slip rings 36 which are in contact with the respective elements 3, 5, 7, 9 are electrically connected.
  • a conventional slip ring arrangement 35 with slip rings 36 (FIG. 2), which are rotatably carried by the axis of the respective cylinder 1, 2 and are charged accordingly by the high-voltage source, by firmly attached brushes 37 in sliding contact with the slip rings 36 which are in contact with the respective elements 3, 5, 7, 9 are electrically connected.
  • the outer surface of the deflecting cylinders 1, 2 with a plurality of channels 22 which extend in the circumferential direction Deflection cylinders 1, 2 are formed, provided.
  • the print copy wipers 18, 19 engage in these channels. Due to this arrangement, the printed copies 11 glide smoothly from the deflecting cylinders 1, 2 onto the conveyor belts 14, 15 via the printed copy wipers 18, 19.
  • FIG. 3 A further exemplary embodiment of the invention, as mentioned above, is shown in FIG. 3, in which the printed copy 11 is conveyed into the gap 12 between the deflecting cylinders 1, 2.
  • the element 6 provided with a negative electrostatic charge attracts the leading edge of the printed copy 11, which is provided with a positive charge.
  • the front edge of the printed copy 11 thus lies on the element 6 and is held there due to the fact that the printed copy 11 is subjected to an antipolar electrostatic charge and due to the repulsion by the same charge applied to it by the elements.
  • the required holding force is generated by a high voltage source and the intensity is adjusted according to the requirements.
  • the printed copy 11 is pulled away from the gap 12 ( ⁇ 90 degrees) and fed to a transfer cylinder 27.
  • a guide element 13 is arranged, which serves to support the print copy guide.
  • the transfer cylinder 27 is equipped with grippers 34, which remove the printed copy 11 from the deflection cylinder 2 and feed it to an output cylinder 28, which deposits the printed copy on a conveyor belt 30.
  • the next print copy 11 arriving in the gap 12 is attracted by an element 7, which is at this point in the area of the gap 12, and is fed to an output cylinder 29 in accordance with the direction of rotation of the deflection cylinder 1.
  • the output cylinder 29 is provided with grippers 34 which lift the printed copy 11 from the deflecting cylinder 1, reduce the speed of the printed copies 11 and bring them onto a conveyor belt 31 for storage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)
EP91104492A 1990-04-09 1991-03-22 Dispositif de dérivation pour mécanisme de pliage. Expired - Lifetime EP0451573B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/507,244 US5064180A (en) 1990-04-09 1990-04-09 Electrostatic diverter
US507244 1990-04-09

Publications (2)

Publication Number Publication Date
EP0451573A1 true EP0451573A1 (fr) 1991-10-16
EP0451573B1 EP0451573B1 (fr) 1994-03-02

Family

ID=24017832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104492A Expired - Lifetime EP0451573B1 (fr) 1990-04-09 1991-03-22 Dispositif de dérivation pour mécanisme de pliage.

Country Status (5)

Country Link
US (1) US5064180A (fr)
EP (1) EP0451573B1 (fr)
JP (1) JPH04226252A (fr)
CA (1) CA2039349A1 (fr)
DE (1) DE59101054D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988970A3 (fr) * 1998-09-24 2000-09-27 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de renvoi pour des signatures
FR2813552A1 (fr) 2000-09-01 2002-03-08 Heidelberger Druckmasch Ag Dispositif destine a l'isolation electrique de pieces en rotation dans des machines a imprimer rotatives
WO2001079099A3 (fr) * 2000-04-15 2002-04-11 Koenig & Bauer Ag Dispositifs pour ejecter des signatures d'un appareil de pliage
WO2002079065A3 (fr) * 2001-04-02 2003-01-30 Koenig & Bauer Ag Appareil de pliage
EP2484615A3 (fr) * 2011-02-08 2013-05-22 Goss International Americas, Inc. Procédé et appareil pour dérouter des produits imprimés en trois flux

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228373A (en) * 1990-01-08 1993-07-20 Robert A. Foisie Method and apparatus using electrostatic charges to temporarily hold packets of paper
US5538242A (en) * 1994-07-08 1996-07-23 Heidelberger Druckmaschinen Ag Signature aiming device
US5639083A (en) * 1994-07-14 1997-06-17 Heidelberger Druckmaschinen Ag Device for the delivery of folded products
US5558615A (en) * 1994-08-29 1996-09-24 Heidelberger Druckmaschinen Ag Modular exit roller assembly
US5490666A (en) * 1994-08-29 1996-02-13 Heidelberger Druchemaschiner Ag Folder with spring-biased exit roller
DE19716325C2 (de) * 1997-04-18 2001-04-26 Koenig & Bauer Ag Vorrichtung zum elektrostatischen Aufladen eines mehrlagigen Stranges
DE19755745C2 (de) * 1997-12-16 2002-05-08 Koenig & Bauer Ag Einrichtung zum elektrostatischen Beeinflussen von Signaturen
DE10344192B4 (de) * 2003-09-22 2009-04-30 E.C.H. Will Gmbh Vorrichtung zur Verarbeitung von Stapel aus elektrostatisch aufladbaren Flachteilen
ITFI20040030A1 (it) * 2004-02-11 2004-05-10 Perini Fabio Spa Macchina piegatrice per piegare un materiale continuo e relativo metodo di piegatura

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077235A (en) * 1980-05-06 1981-12-16 Spengler Walter Facilitating the opening of folded signatures for collation
EP0169490A1 (fr) * 1984-07-26 1986-01-29 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour transformer des produits pliés
DE3601660A1 (de) * 1986-01-21 1987-07-23 Eltex Elektrostatik Gmbh Verfahren und vorrichtung zum falzen von aus einer fortlaufenden materialbahn abgeschnittenen bogen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346253A (en) * 1965-03-31 1967-10-10 Frank R Paschke Electrostatic sheet control means
US3323794A (en) * 1965-04-05 1967-06-06 Harris Intertype Corp Sheet handling apparatus
US3999454A (en) * 1975-10-20 1976-12-28 George Hantscho Company, Inc. Pinless feeder
US4077519A (en) * 1977-03-28 1978-03-07 Xerox Corporation Curl detector and separator
JPS5436828A (en) * 1977-08-26 1979-03-17 Ricoh Co Ltd Sheet distributing device
US4190241A (en) * 1978-05-01 1980-02-26 Kimberly-Clark Corporation Apparatus for converting paper rolls into stacks of individual folded paper sheets
US4534552A (en) * 1983-07-20 1985-08-13 Motter Printing Press Co. Sheet diverting system
DE3735303A1 (de) * 1987-10-17 1989-04-27 Roland Man Druckmasch Falzapparat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077235A (en) * 1980-05-06 1981-12-16 Spengler Walter Facilitating the opening of folded signatures for collation
EP0169490A1 (fr) * 1984-07-26 1986-01-29 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour transformer des produits pliés
DE3601660A1 (de) * 1986-01-21 1987-07-23 Eltex Elektrostatik Gmbh Verfahren und vorrichtung zum falzen von aus einer fortlaufenden materialbahn abgeschnittenen bogen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988970A3 (fr) * 1998-09-24 2000-09-27 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de renvoi pour des signatures
WO2001079099A3 (fr) * 2000-04-15 2002-04-11 Koenig & Bauer Ag Dispositifs pour ejecter des signatures d'un appareil de pliage
US6913567B2 (en) 2000-04-15 2005-07-05 Koenig & Bauer Aktiengesellschaft Device for the extraction of signatures from a folding apparatus
FR2813552A1 (fr) 2000-09-01 2002-03-08 Heidelberger Druckmasch Ag Dispositif destine a l'isolation electrique de pieces en rotation dans des machines a imprimer rotatives
DE10043211A1 (de) * 2000-09-01 2002-03-14 Heidelberger Druckmasch Ag Einrichtung zur elektrischen Isolation rotierender Bauteile in Rotationsdruckmaschinen
US6616134B2 (en) 2000-09-01 2003-09-09 Heidelberger Druckmaschinen Ag Device for electrically insulating rotating components in rotary printing machines
WO2002079065A3 (fr) * 2001-04-02 2003-01-30 Koenig & Bauer Ag Appareil de pliage
US6941862B2 (en) 2001-04-02 2005-09-13 Koenig & Bauer Aktiengesellschaft Folder
EP1524227A3 (fr) * 2001-04-02 2007-08-15 Koenig & Bauer Aktiengesellschaft Procédé d'utilisation d'un appareil de pliage
EP1524226A3 (fr) * 2001-04-02 2007-08-15 Koenig & Bauer Aktiengesellschaft Appareil de pliage avec des roues à aubes et des convoyeurs à courroie
EP2484615A3 (fr) * 2011-02-08 2013-05-22 Goss International Americas, Inc. Procédé et appareil pour dérouter des produits imprimés en trois flux

Also Published As

Publication number Publication date
EP0451573B1 (fr) 1994-03-02
CA2039349A1 (fr) 1991-10-10
US5064180A (en) 1991-11-12
JPH04226252A (ja) 1992-08-14
DE59101054D1 (de) 1994-04-07

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