EP0183928B1 - Vorrichtung zum Führen von ein- oder beidseitig bedruckten Bogen - Google Patents

Vorrichtung zum Führen von ein- oder beidseitig bedruckten Bogen Download PDF

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Publication number
EP0183928B1
EP0183928B1 EP85111659A EP85111659A EP0183928B1 EP 0183928 B1 EP0183928 B1 EP 0183928B1 EP 85111659 A EP85111659 A EP 85111659A EP 85111659 A EP85111659 A EP 85111659A EP 0183928 B1 EP0183928 B1 EP 0183928B1
Authority
EP
European Patent Office
Prior art keywords
sheet
sides
printing
openings
drum
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
EP85111659A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0183928A3 (en
EP0183928A2 (de
Inventor
Bert Dipl.-Ing. Cappel
Norbert Kreuzer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6251571&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0183928(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT85111659T priority Critical patent/ATE51362T1/de
Publication of EP0183928A2 publication Critical patent/EP0183928A2/de
Publication of EP0183928A3 publication Critical patent/EP0183928A3/de
Application granted granted Critical
Publication of EP0183928B1 publication Critical patent/EP0183928B1/de
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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/228—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/08—Combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic 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
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device on multi-color printing presses for guiding sheets printed on one or both sides according to the preamble of the first claim.
  • a device of this type is known from GB-A-458 158.
  • the disadvantage is that the blown air is not simultaneously with the accuracy required due to the low weight of thin paper, counteracting and with different. Strength in curvatures or straight areas of the curved path can be adjusted to one another, and that only a central fan supplies the two blowing devices arranged opposite one another and the upstream blowing air drum with air. This obviously has a high volume flow and a high pressure difference, since the one upper blow box should also work as a dryer.
  • sheets printed on both sides can be optimally guided on a blown air stream and sheets printed on one side on a blown air / suction air stream at the highest machine speeds and low paper weight. It is disadvantageous that, in the presence of a steep sheet outlet on the blown air flow, sheets printed on both sides with a low paper weight tend to collapse at relatively low machine speeds, because the sheet's own position-stabilizing properties are not sufficient to keep the sheet flat and smooth from the underside to guide the acting air poster tangentially downwards on a defined path. The result is greasing on the guide surfaces at relatively low speeds and thin paper.
  • a sheet guiding device for sheet guiding on perfecting and printing machines with printing units arranged one behind the other, which are connected to one another by sheet guiding cylinders, is also already known (DE-A-2 657 250).
  • the sheet guiding device also has sheet guiding brackets in addition to the blow boxes that extend under the sheet conveying path and are adapted to the course of the sheet and provided with outlet openings, which means that the sheets are conveyed in all formats and speed ranges without any creases and smear-free in machines of low construction.
  • the disadvantage is that the mechanical support leads to lubrication on the guide bracket if pressure-free areas are missing in the printed image.
  • the object of the invention is to provide a device on multicolor printing machines of the type mentioned, in which, in particular along a steep arc exit, the sheet is smoothed in connection with a positionally stable guidance of sheets printed on both sides by blown air streams which are thin due to the low weight Paper accuracy required can be adjusted to each other.
  • the sheets 1 coming from a feeder 11 are fed to a printing unit 12, printed there and then fed to a second printing unit 13.
  • a turning station 14 is arranged upstream of this second printing unit 13.
  • the sheets 1 can be turned there and then printed on the back in the second printing unit 13, but they can also be fed unturned to the second printing unit 13 for two-color printing.
  • the sheets 1 are fed to the delivery 15 after passing through the second printing unit.
  • the transport of the sheets between the printing units 12, 13 or the second printing unit 13 and the delivery arm 15 takes place via chain conveyors, to which grippers 6 are attached, in two chain circles 16, 17.
  • the sheets 1 are guided on guide surfaces 2.1, each of which Form the top of flow channels 3.1 to 3.6.
  • fans 8.1 to 8.4 are arranged in side by side openings.
  • a large number of flow channels form a continuous fan path between the printing units 12, 13 and / or printing unit 13 and the delivery arm 15.
  • the fan path acts as an air cushion path exclusively with blow fans 8.1 to 8.4, which ensures flutter-free and smear-free guidance of sheets printed on both sides at the highest speeds and thin Paper is reached.
  • an upper guide surface 2.2 is additionally arranged above the guide surface 2.1 within the chain circle 17 in the second printing unit 13 and forms the underside of flow channels 4.1 to 4.3.
  • fans 10.1 to 10.4 are arranged in openings arranged side by side. All fans 8.1 to 8.4 and 10.1 to 10.4 are designed as blow fans.
  • the characteristics of the fans 8, 10 have a low pressure at a high volume flow.
  • the guide surfaces 2.1 and 2.2 have holes 7 of the same size, which are regularly distributed on both guide surfaces.
  • the bores 7 have a diameter of at least 15 mm and a distance of approximately 50 mm from one another, corresponding to FIG. 3.
  • the total bore area is 15 to 30% of the total area of the guide.
  • the fluid of the respective guide surface 2.1 or 2.2 has a volume flow of approximately 2,000 m 3 / hour. at a pressure between 30 and 300 Pascal.
  • All fans 8.1 to 8.4 and 10.1 to 10.4 of the double-sided fan track can be adjusted with the accuracy required due to the low paper weight by means of separate controllers which are arranged on the delivery of the printing press.
  • the smoothing effect in connection with the load capacity of the air cushion on the substrate can be optimally adjusted in order to ensure that smear-free and flutter-free sheet travel in perfecting and reverse printing machines with all paper types and formats in an extended speed range is obtained, even if there is a steep sheet exit is present, which would lead to a collapse of thin sheets with a one-sided gentle air cushion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP85111659A 1984-11-30 1985-09-14 Vorrichtung zum Führen von ein- oder beidseitig bedruckten Bogen Expired - Lifetime EP0183928B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111659T ATE51362T1 (de) 1984-11-30 1985-09-14 Vorrichtung zum fuehren von ein- oder beidseitig bedruckten bogen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3443704 1984-11-30
DE19843443704 DE3443704A1 (de) 1984-11-30 1984-11-30 Vorrichtung zum fuehren von ein- oder beidseitig bedruckten bogen

Publications (3)

Publication Number Publication Date
EP0183928A2 EP0183928A2 (de) 1986-06-11
EP0183928A3 EP0183928A3 (en) 1987-09-30
EP0183928B1 true EP0183928B1 (de) 1990-03-28

Family

ID=6251571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111659A Expired - Lifetime EP0183928B1 (de) 1984-11-30 1985-09-14 Vorrichtung zum Führen von ein- oder beidseitig bedruckten Bogen

Country Status (3)

Country Link
EP (1) EP0183928B1 (enrdf_load_stackoverflow)
AT (1) ATE51362T1 (enrdf_load_stackoverflow)
DE (1) DE3443704A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106904A1 (de) * 1991-03-05 1992-09-10 Koenig & Bauer Ag Duesenanordnung fuer die bogenfuehrung in bogenrotationsdruckmaschinen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205217A (en) * 1990-12-31 1993-04-27 Howard W. DeMoore Vacuum transfer apparatus for rotary sheet-fed printing presses
DE4111262C1 (enrdf_load_stackoverflow) * 1991-04-08 1992-06-25 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4242730C2 (de) * 1992-12-17 1997-01-30 Heidelberger Druckmasch Ag Bogenausleger einer Druckmaschine
DE4322324C2 (de) * 1993-07-05 2002-01-17 Heidelberger Druckmasch Ag Bogentransport und Bogenführung im Auslagebereich von Rotationsdruckmaschinen
DE4344039C2 (de) * 1993-12-23 2002-08-29 Koenig & Bauer Ag Bogenleiteinrichtung in umstellbaren Druckmaschinen
DE4406844C2 (de) * 1994-03-03 1997-05-07 Koenig & Bauer Albert Ag Vorrichtung zum Führen von frisch beschichteten Bogen
DE19524641A1 (de) * 1994-09-02 1996-03-14 Heidelberger Druckmasch Ag Leiteinrichtung für einen Bogen
EP0701958B1 (de) * 1994-09-02 1998-07-15 Heidelberger Druckmaschinen Aktiengesellschaft Leiteinrichtung für einen Bogen
DE19503110B4 (de) * 1995-02-01 2009-01-29 Heidelberger Druckmaschinen Ag Bogenleiteinrichtung für Druckmaschinen
DE19747040A1 (de) * 1997-08-28 1999-03-04 Heidelberger Druckmasch Ag Luftpolsterführung
EP0899228B1 (de) * 1997-08-28 2004-04-14 Heidelberger Druckmaschinen Aktiengesellschaft Luftpolsterführung
DE10010206A1 (de) * 2000-03-02 2001-09-06 Koenig & Bauer Ag Kettenkreis-Bogenauslage
DE10060557B4 (de) * 2000-12-06 2007-05-31 Man Roland Druckmaschinen Ag Bogenleiteinrichtung in einer Rotationsdruckmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458158A (fr) * 1912-05-01 1913-10-04 Bariumoxyd Ges M B H Procédé de préparation d'eau oxygénée pure et à haut degré de concentration à partir d'un peroxyde alcalino-terreux
DE887818C (de) * 1939-02-16 1953-08-27 Albert Schnellpressen Ablegevorrichtung fuer Bogen-Rotationstiefdruckmaschinen
DE1449656C3 (de) * 1961-12-02 1972-06-29 Svenska Flaektfabriken Ab Vorrichtung zum flatterfreien Führen von Flachmaterial
US3334897A (en) * 1965-05-25 1967-08-08 Richard E Sharkey Method and apparatus for controlling curvature in printed sheets being withdrawn from an impression cylinder
DE1972516U (de) * 1967-06-20 1967-11-16 Koenig & Bauer Schnellpressfab Bogenfuehrungsvorrichtung fuer druckmaschinen.
DD125394A1 (enrdf_load_stackoverflow) * 1976-02-27 1977-04-20
DD137079A1 (de) * 1978-01-25 1979-08-15 Hans Zimmermann Bogenleiteinrichtung in bogenauslegern von druckmaschinen
DE3114581C2 (de) * 1981-04-10 1984-01-19 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Fördervorrichtung für eine Bogen-Rotationsdruckmaschine
DE3411029A1 (de) * 1984-03-24 1985-10-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum fuehren von ein- und beidseitig bedruckten bogen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106904A1 (de) * 1991-03-05 1992-09-10 Koenig & Bauer Ag Duesenanordnung fuer die bogenfuehrung in bogenrotationsdruckmaschinen

Also Published As

Publication number Publication date
DE3443704C2 (enrdf_load_stackoverflow) 1988-07-21
DE3443704A1 (de) 1986-06-05
EP0183928A3 (en) 1987-09-30
ATE51362T1 (de) 1990-04-15
EP0183928A2 (de) 1986-06-11

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