EP0858889B1 - Machine rotative à imprimer à feuilles comprenant un système de dépoussiérage avec un dispositif de guidage de feuilles - Google Patents

Machine rotative à imprimer à feuilles comprenant un système de dépoussiérage avec un dispositif de guidage de feuilles Download PDF

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Publication number
EP0858889B1
EP0858889B1 EP98101228A EP98101228A EP0858889B1 EP 0858889 B1 EP0858889 B1 EP 0858889B1 EP 98101228 A EP98101228 A EP 98101228A EP 98101228 A EP98101228 A EP 98101228A EP 0858889 B1 EP0858889 B1 EP 0858889B1
Authority
EP
European Patent Office
Prior art keywords
impression cylinder
dust removal
removal system
printing press
sheet
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
EP98101228A
Other languages
German (de)
English (en)
Other versions
EP0858889A2 (fr
EP0858889A3 (fr
Inventor
Thomas Walther
Udo Trillig
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0858889A2 publication Critical patent/EP0858889A2/fr
Publication of EP0858889A3 publication Critical patent/EP0858889A3/fr
Application granted granted Critical
Publication of EP0858889B1 publication Critical patent/EP0858889B1/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
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/23—Brushes

Definitions

  • the invention relates to a sheet-fed rotary printing press with a Dust removal system with sheet guiding device according to the preamble of Claim 1.
  • a sheet-fed printing machine with a device of this type is known from CH-PS 419 188.
  • the invention relates to a device for spreading, brushing and suctioning the dust off the surface of the paper to be printed, the device being arranged in the sheet conveying direction in front of the printing zone.
  • the suction is designed in the form of an oscillatable suction bar, which has brushes at the end regions, is arranged in a swivel bearing and can be removed freely upwards from the printing unit. It is a disadvantage of this device that the sheet guide does not take enough account of the different basis weights of the sheets to be processed.
  • a sheet guiding device for the smooth application of printed sheets in front of the printing nip is known. Thereafter, a blowing nozzle for pressing the sheet onto the cylinder jacket by the force of air flowing is provided, which is mounted such that it can oscillate parallel to the axis of the printing cylinder and can be moved back and forth in the sheet conveying direction in the work cycle of the printing press.
  • the gear technology training to achieve the oscillating movement of the sheet guiding device affects the space in front of the printing nip.
  • DE 42 17 813 A1 is a sheet guiding device in one Rotary printing machine with parallel to the axis of a printing cylinder and over whose outer surface extending blow strips known.
  • first blow bar depends on Printing material can be swiveled in different angles to the normal.
  • second blow bar in the conveying direction is stationary in front of the Pressure gap arranged.
  • the object of the invention is a sheet-fed rotary printing press with a To create a dedusting system with sheet guiding device, which the mentioned Avoids disadvantages and a more uniform sheet guidance on a printing cylinder for one-sided or double-sided printing of the sheet-shaped printing material allowed to improve the print quality while cleaning the substrate increase.
  • the object is achieved through the training features of claim 1 solved. Further training results from the subclaims.
  • the advantage of the invention is that the sheet-shaped printing material essentially regardless of its weight per unit area immediately after the transfer area the pressure cylinder is guided by the creation of the air cushion between sheet-like substrate and impression cylinder is noticeably reduced.
  • the Printing material lies smoothly on the jacket of the printing cylinder, the activated one Dust removal system does not adversely affect the routing of the substrate on the Printing cylinder affects.
  • the arrangement of the dedusting system with sheet guiding device is for a system printing unit (first printing unit in the conveying direction of the Substrate) can be used.
  • a system printing unit first printing unit in the conveying direction of the Substrate
  • their use is not limited to this, but rather the device is also suitable for printing units that have a turning device in Follow the direction of conveyance, there is also an arrangement in front of further processing units, such as. Paint shops, or after pollination facilities, e.g. Powder systems, possible.
  • the blow pipe 4 is provided with openings for the discharge of blowing air, which are more preferred Way in a first blowing direction 11 approximately opposite to the conveying direction 13.
  • the openings are arranged such that the blown air flow onto the transfer area and on the printing material guided on the printing cylinder 2 occurs.
  • the first row in A blown air flow is generated in the direction of the transfer area and the second row in A blown air flow is generated in the direction of the outer surface of the pressure cylinder 2.
  • the dedusting system 5 consists essentially of a suction box with another brushes arranged at the lower and upper limit.
  • the brushes are defined in a Distance to the outer surface of the printing cylinder 2 is arranged.
  • the dedusting system 5 is in a guide arranged approximately at right angles to the lateral surface of the printing cylinder 2 12 longitudinally displaceable, so that the distance to the printing cylinder 2 is exactly adjustable.
  • the guide 12 serves to insert or remove the dust removal system 5 in the specified area 20 within the printing unit 16.
  • the dedusting system 5 is coupled to a pneumatic system, preferably a suction source, which in Suction 9 removes the dust or powder from the substrate surface.
  • the sheet guide 6 consists of a closed blow box, the openings for has the discharge of blown air.
  • the second blowing direction 10 is on the jacket of the printing cylinder 2 and preferably in the conveying direction 13 into the printing nip (formed by printing cylinders 2 and blanket cylinder 1) directed.
  • the design of the sheet guiding device 6 is executed such that the area facing the pressure gap has a strong curvature and therefore close to the pressure zone.
  • the sheet guiding device 6 is in swivel joints 7 fixed to the frame and pivotable at a defined angle to the lateral surface of the printing cylinder 2 stored.
  • the mode of action is as follows:
  • the sheet-like printing material is transferred from a feeder 18 via a feed table 19 in the conveying direction 13 to a pre-gripper 17, which feeds the printing material to the feed drum 3.
  • the feed drum 3 takes over and accelerates the printing material to machine speed and transfers it to the printing cylinder 2 of the first printing unit 16 in the transfer area.
  • the blowing air emerging from the activated blowing tube 4 in the blowing direction 11 flows approximately counter to the conveying direction 13 and generates a force acting on the printing material. This counteracts the infiltration of the printing material by ambient air at an early stage, so that the printing material is guided flat (smooth) on the jacket of the printing cylinder 2.
  • blown air continues to flow in a defined circular sector onto the printing material guided in the gripper closure on the printing cylinder 2.
  • the printing material passes through the ionizer 8, which is potentially disruptive electrostatic charges with dust / powder particles eliminated. By reducing the electrostatic charge an energy balance is restored.
  • the dust or the powder is sucked through the dust removal system 5 from the surface of the printing material and fed to a receptacle.
  • the substrate is on the dedusting system 5 conveyed past, is stretched and passes the sheet guide 6.
  • the sheet guide 6 can be arranged at intervals across the width of the printing cylinder 2 Bow guide rods or be designed as a sheet guide plate.
  • the sheet guiding device is preferred 6, however, is designed as a blow box with openings for the exit of the blown air flow.
  • the blown air stream emerges from the blower box in the second blowing direction 10 onto the lateral surface of the printing cylinder 2 and preferably also in the direction of the printing zone.
  • the blown air flow directed through corresponding openings on the blanket cylinder 1 be and of the drag flow of the blanket cylinder 1 in the direction of the printing zone stream.
  • the blown air is deflected in the area of the pressure zone and flows against it the conveying direction 13 of the printing material back.
  • the substrate is additional out flat on the pressure cylinder 2.
  • the one deflected in front of or in the pressure zone Blown air flow is partially extracted by means of the dedusting system 5.
  • the Sheet guiding device 6 can be pivoted in the swivel joints 7 arranged fixed to the frame.
  • the sheet guiding device is the processing of sheet-shaped substrates with a low basis weight 6 inclined so that the adjacent in the conveying direction 13 of the pressure zone Area a smaller distance from the outer surface of the printing cylinder 2 than that of the Dust removal system 5 has adjacent area.
  • a higher basis weight e.g. rigid materials
  • the substrate is Printing cylinder 2 of the first printing unit 16 to the subsequent transfer drum 15 Pass the pressure zone and continue to the subsequent second printing unit 16 transported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)

Claims (10)

  1. Machine d'impression rotative à feuilles, comprenant un système de dépoussiérage (5) à dispositif pour guider des feuilles, qui est agencé, dans la direction de transport (13) de la matière d'impression sous forme de feuille, avant une zone d'impression, et le système de dépoussiérage (5) est réalisé sous forme d'un caisson d'aspiration ayant des brosses agencées au moins dans les zones supérieure et inférieure et est couplé à une source d'air d'aspiration pour éliminer des impuretés de la surface de la matière d'impression,
    caractérisée en ce que, dans la direction de transport (13) de la matière d'impression, le système de dépoussiérage (5) est agencé avant la zone d'impression d'une première unité d'impression (16), en ce qu'au moins un tube de soufflage (4) ayant des ouvertures orientées sensiblement à l'encontre de la direction de transport (13) est disposé en amont du système de dépoussiérage (5) parallèlement à l'axe d'un cylindre d'impression (2) et en s'étendant sur sa surface d'enveloppe, de sorte qu'un courant d'air de soufflage peut être engendré sur la surface d'enveloppe du cylindre d'impression (2) et la zone de transfert disposée en amont, orienté dans une première direction de soufflage (11), sur le même cylindre d'impression (2).
  2. Machine d'impression rotative à feuilles selon la revendication 1 ou 10,
    caractérisée en ce qu'au moins deux séries d'ouvertures sont agencées dans le tube de soufflage (4), desquelles une première série engendre, à chaque fois, une force par le courant d'air de soufflage en direction de la zone de transfert et une seconde série dans un secteur circulaire de la surface d'enveloppe du cylindre d'impression (2).
  3. Machine d'impression rotative à feuilles selon la revendication 1 ou 10,
    caractérisée en ce qu'un dispositif d'ionisation (8) est agencé parallèlement à l'axe du cylindre d'impression (2) et en s'étendant sur la largeur du cylindre d'impression (2) entre le tube de soufflage (4) et le système de dépoussiérage (5).
  4. Machine d'impression rotative à feuilles selon la revendication 1 ou 10,
    caractérisée en ce qu'un dispositif de guidage de feuilles (6) est agencé entre la zone d'impression et le système de dépoussiérage (5).
  5. Machine d'impression rotative à feuilles selon la revendication 4,
    caractérisée en ce que le dispositif de guidage de feuilles (6) est formé de barres de guidage individuelles ou d'une tôle de guidage.
  6. Machine d'impression rotative à feuilles selon la revendication 4,
    caractérisée en ce que le dispositif de guidage de feuilles (6) est un caisson de soufflage ayant des ouvertures pour la sortie d'au moins un courant orienté sur la surface d'enveloppe du cylindre d'impression (2) dans une seconde direction de soufflage (10).
  7. Machine d'impression rotative à feuilles selon la revendication 6,
    caractérisée en ce qu'un courant d'air de soufflage supplémentaire est orienté dans la zone d'impression et, en pouvant être dévié à l'encontre de la direction de transport (13), aplanit la surface d'impression sur le cylindre d'impression (2).
  8. Machine d'impression rotative à feuilles selon la revendication 7,
    caractérisée en ce que le courant d'air de soufflage supplémentaire est également orienté sur le cylindre porte-blanchet (1) et est orienté par le courant d'entraínement du cylindre porte-blanchet (1) dans la zone d'impression et, en pouvant être dévié à l'encontre de la direction de transport (13) dans la zone d'impression, aplanit la matière d'impression sur le cylindre d'impression (2).
  9. Machine d'impression rotative à feuilles selon la revendication 1,
    caractérisée en ce que le système de dépoussiérage (5) est agencé avant la zone d'impression dans une zone (20) formée par le cylindre d'impression (2), un cylindre porte-blanchet (1) et un tambour de marge (3) disposé en amont dans la direction de transport (13) de la matière d'impression.
  10. Machine d'impression rotative à feuilles selon la revendication 1,
    caractérisée en ce qu'un autre système de dépoussiérage (5) est agencé avant la zone d'impression d'une autre unité d'impression (16), qui, dans la direction de transport (13), est disposé en aval d'un dispositif de retournement, en ce que ce système de dépoussiérage (5) présente, parallèlement à l'axe d'un cylindre d'impression (2) et en s'étendant sur sa surface d'enveloppe, au moins un tube de soufflage (4) ayant des ouvertures orientées sensiblement à l'encontre de la direction de transport (13), en amont, de sorte qu'un courant d'air de soufflage peut être engendré sur la surface d'enveloppe du cylindre d'impression (2) et la zone de transfert disposée en amont, de façon orientée dans la première direction de soufflage (11), sur le même cylindre d'impression (2).
EP98101228A 1997-02-15 1998-01-24 Machine rotative à imprimer à feuilles comprenant un système de dépoussiérage avec un dispositif de guidage de feuilles Expired - Lifetime EP0858889B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29702626U DE29702626U1 (de) 1997-02-15 1997-02-15 Entstaubungssystem mit Bogenführungseinrichtung
DE29702626U 1997-02-15

Publications (3)

Publication Number Publication Date
EP0858889A2 EP0858889A2 (fr) 1998-08-19
EP0858889A3 EP0858889A3 (fr) 1999-03-03
EP0858889B1 true EP0858889B1 (fr) 2001-11-07

Family

ID=8035979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98101228A Expired - Lifetime EP0858889B1 (fr) 1997-02-15 1998-01-24 Machine rotative à imprimer à feuilles comprenant un système de dépoussiérage avec un dispositif de guidage de feuilles

Country Status (4)

Country Link
EP (1) EP0858889B1 (fr)
JP (1) JPH10226046A (fr)
AT (1) ATE208268T1 (fr)
DE (2) DE29702626U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248635A1 (de) * 2002-10-18 2004-04-29 Koenig & Bauer Ag Bogenrotationsdruckmaschine mit einem Entstaubungssystem mit Bogenführungseinrichtung
DE102004051330B4 (de) * 2003-10-31 2006-10-05 Koenig & Bauer Ag Entstaubungsvorrichtung mit einer Bogenleiteinrichtung
DE10252377B4 (de) * 2002-11-15 2006-11-09 Man Roland Druckmaschinen Ag Verarbeitungsmaschine mit einer berührungslos arbeitenden Entstaubungsvorrichtung

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29702626U1 (de) * 1997-02-15 1997-04-03 MAN Roland Druckmaschinen AG, 63075 Offenbach Entstaubungssystem mit Bogenführungseinrichtung
DE19753068B4 (de) * 1997-11-29 2004-12-09 Man Roland Druckmaschinen Ag Bogenführungseinrichtung in einer Druckmaschine
DE10040519A1 (de) 1999-09-20 2001-03-22 Heidelberger Druckmasch Ag Bogenleiteinrichtung für eine Bogendruckmaschine
ATE246555T1 (de) 2000-02-01 2003-08-15 Heidelberger Druckmasch Ag Vorrichtung zur entfernung von partikeln von materialbahnen
DE10004305A1 (de) * 2000-02-01 2001-08-02 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Entfernung von Partikeln von Materialbahnen
DE10011979C5 (de) * 2000-03-11 2008-02-14 Man Roland Druckmaschinen Ag Einrichtung zur Bogenführung in einer Druckmaschine
DE102005032601A1 (de) * 2005-01-07 2006-07-20 Heidelberger Druckmaschinen Ag Druckmaschine
WO2006095582A1 (fr) * 2005-03-08 2006-09-14 Konica Minolta Medical & Graphic, Inc. Sheet-fed printing press and printing method
DE102005028838A1 (de) * 2005-06-25 2007-01-04 Man Roland Druckmaschinen Ag Bogendruckmaschine und Verfahren zum Transportieren von Druckbogen in einer Bogendruckmaschine
DE102014216286A1 (de) * 2014-08-15 2016-02-18 Koenig & Bauer Ag Vorrichtung zum Führen von Bogen in einer Bogenrotationsdruckmaschine
CN111730648B (zh) * 2020-05-17 2022-03-01 广州市威顿彩印有限公司 一种印刷完成后裁剪除尘装置

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE1240885B (de) * 1963-07-15 1967-05-24 Johannisberg G M B H Maschf Vorrichtung zum Ausstreichen sowie zum Abbuersten und Absaugen des Staubes von der Oberflaeche des zu bedruckenden Papiers an Bogendruckmaschinen, insbesondere Hochdruck-flachformmaschinen
DE1786277A1 (de) * 1968-09-10 1972-01-20 Hans Gruenenfelder Vorrichtung zum elektrostatischen Entladen von laufenden Materialbahnen und deren gleichzeitiger Entstaubung
DE2552725C3 (de) * 1975-11-25 1980-01-10 Herbert 4802 Halle Mattle Einrichtung zur Staubentfernung
DD253008A1 (de) * 1986-10-01 1988-01-06 Polygraph Leipzig Einrichtung zur bogenfuehrung in druckmaschinen
EP0306684B1 (fr) * 1987-09-11 1992-04-08 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour presser une feuille contre le cylindre de contre-pression dans une presse rotative à feuilles pour l'impression en plusieurs couleurs
DE4217813C2 (de) * 1992-05-29 1996-06-05 Heidelberger Druckmasch Ag Vorrichtung zum Erzielen einer flächigen Anlage von Bedruckstoffen
DE4410189A1 (de) * 1994-03-24 1995-09-28 Heidelberger Druckmasch Ag Leiteinrichtung für bewegtes Bogenmatrial in Druckmaschinen
DE19523072C2 (de) * 1995-06-24 2003-12-04 Heidelberger Druckmasch Ag Bogenblaseinrichtung für eine Druckmaschine
DE19549845B4 (de) * 1995-06-24 2007-07-12 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzielung einer einwandfreien Auflage eines Bedruckstoffes in einer Druckmaschine
DE29520375U1 (de) * 1995-12-22 1996-02-15 Kba-Planeta Ag, 01445 Radebeul Einrichtung zum wahlweisen Anstellen von Zusatzeinrichtungen
DE29702626U1 (de) * 1997-02-15 1997-04-03 MAN Roland Druckmaschinen AG, 63075 Offenbach Entstaubungssystem mit Bogenführungseinrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248635A1 (de) * 2002-10-18 2004-04-29 Koenig & Bauer Ag Bogenrotationsdruckmaschine mit einem Entstaubungssystem mit Bogenführungseinrichtung
DE10248635B4 (de) * 2002-10-18 2010-03-11 Koenig & Bauer Aktiengesellschaft Bogenrotationsdruckmaschine mit einem Entstaubungssystem mit Bogenführungseinrichtung
DE10252377B4 (de) * 2002-11-15 2006-11-09 Man Roland Druckmaschinen Ag Verarbeitungsmaschine mit einer berührungslos arbeitenden Entstaubungsvorrichtung
DE102004051330B4 (de) * 2003-10-31 2006-10-05 Koenig & Bauer Ag Entstaubungsvorrichtung mit einer Bogenleiteinrichtung

Also Published As

Publication number Publication date
DE29702626U1 (de) 1997-04-03
EP0858889A2 (fr) 1998-08-19
JPH10226046A (ja) 1998-08-25
EP0858889A3 (fr) 1999-03-03
DE59802007D1 (de) 2001-12-13
ATE208268T1 (de) 2001-11-15

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