EP0078382B1 - Vorrichtung zum Trocken von Bedruckten Bogen an Offsetdruckmaschinen - Google Patents

Vorrichtung zum Trocken von Bedruckten Bogen an Offsetdruckmaschinen Download PDF

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Publication number
EP0078382B1
EP0078382B1 EP82108401A EP82108401A EP0078382B1 EP 0078382 B1 EP0078382 B1 EP 0078382B1 EP 82108401 A EP82108401 A EP 82108401A EP 82108401 A EP82108401 A EP 82108401A EP 0078382 B1 EP0078382 B1 EP 0078382B1
Authority
EP
European Patent Office
Prior art keywords
infrared radiators
rows
blowers
sheets
delivery
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
Application number
EP82108401A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0078382A1 (de
Inventor
Julius Staffer
Karl-Heinz Walther
Hans-Georg Jahn
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 EP0078382A1 publication Critical patent/EP0078382A1/de
Application granted granted Critical
Publication of EP0078382B1 publication Critical patent/EP0078382B1/de
Expired 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
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing

Definitions

  • the invention relates to a device for drying printed sheets on offset printing machines according to the preamble of claim 1.
  • a drying device by means of emitters is already known ( " Elektro-excellentr”, Essen, No. 4-24. Jan 1953, page 34, picture 7), in which the emitters are arranged at a great distance above the delivery of a high-speed press. Due to the high energy losses, this machine only achieves an hourly machine output of 2000 sheets. Thus, the known infrared drying device in no way meets today's requirements.
  • FIG. 52-56615 Japanese Patent No. Sho 52-56615
  • FIG. 52-56615 shows an embodiment of an infrared dryer, which is also arranged above the delivery stack. Both runs of the delivery chain are passed between the stack and the infrared radiators, so that between the stack surface, i.e. There is a greater distance between the last sheet fed and the emitters and a high output power is therefore required for the emitters themselves.
  • the heat loss caused by the large distance not only heats the mechanical parts in the delivery, e.g. the delivery chain with the gripper bars, but also releases a large amount of heat unused to the environment.
  • This known design is not only very extensive and expensive in terms of its structure, but also has considerable energy losses, which immediately increase the cost of the production to be produced.
  • the object of the invention is to provide an infrared drying device for high-speed offset printing presses, which enables effective drying of the differently printed materials in the area of the sheet delivery with the least technical effort, has the lowest possible energy consumption, the heat losses of which are optimally low and which are easy for the respective person Dry conditions and operating modes can be adjusted.
  • a major advantage of the embodiment according to the invention is that the infrared radiators are arranged directly above the delivery stack, so that their heating output can be selected to be approximately half lower with the same drying output on the sheets. Because the emitters can be adjusted in the vicinity of the sheets during operation of the drying device, all common inks and substrates for the iR area can be dried at the lowest possible cost. It is also possible to ensure that the sheets are deposited evenly by simply changing the emitters against the blowers, to precisely adapt the drying device to the respective requirements and to bring about additional heat transport to the printed surface of the sheets with the air that is required anyway.
  • the sheets 1 show a sheet delivery which is known per se, in which the sheets 1 are gripped by a gripper system 2 and are transported over the delivery stack 5 from delivery chains provided on both sides within the side frames 3.
  • the grippers of the gripper system 2 open, so that the sheets are braked by the braking device 6 and sink onto the delivery stack 5.
  • the delivery chains are then deflected at the end of the delivery stack via sprockets 7 in such a way that the upper chain center 8 moves back into the machine.
  • infrared emitters 19 are provided above the sheets fed by means of the delivery chain 4 and are combined into rows of emitters via holders 11.
  • the rows of emitters extend across the width of the supplied sheets 1 and are lowered via scissor joints 12 in the working position to just above the supplied sheets or via the delivery stack 5.
  • intensive drying is achieved without large heat losses.
  • they have an intensive effect of heat on the printed image or on the sheet stack, so that the drying speed is accelerated.
  • the solvents released by the printing ink are removed from the sheets.
  • the scissor joints 12 are fastened to guides 13 which can be displaced along guide rails 14 longitudinally to the sheet transport direction, in such a way that the rows of emitters are used sooner or later in relation to the incoming sheets.
  • the infrared emitters can be raised out of the working position via the scissor joints 12, so that they release an underlying second guide rail 15.
  • Blowers 16, 17, 18 are provided on this, which are also combined into rails by means of rails 19.
  • These rows of blowers can also be moved on the guide rails 15 in the longitudinal direction of the machine, up to the region of the infrared radiator rows (FIG. 2).
  • These blowers press the released sheets 1 very quickly onto the delivery stack 5, so that the dimensions machine can be operated at high production speed.
  • a blower series is not required for a specific print job, it can, as shown in FIG. 1, be plugged onto the guide rail 14 in the waiting position (blower series 18).
  • the guide rails 14, 15 are fastened to the side frames 3 via holders 20, 21.
  • the individual elements of both the infrared radiators 9, 10 and the blowers 16, 17, 18 are exchangeably attached to brackets 11 or rails 19.
  • the infrared heater series or the fan series can also be switched on or off individually.
  • the drying device described thus enables an easy change from one operating mode to another, without the air flow being disturbed, and ensures that the individual sheets are deposited correctly without the printed image being damaged by sticking them together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Drying Of Solid Materials (AREA)
EP82108401A 1981-10-30 1982-09-11 Vorrichtung zum Trocken von Bedruckten Bogen an Offsetdruckmaschinen Expired EP0078382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3143089 1981-10-30
DE19813143089 DE3143089A1 (de) 1981-10-30 1981-10-30 Vorrichtung zum trocknen von bedruckten bogen an offsetdruckmaschinen

Publications (2)

Publication Number Publication Date
EP0078382A1 EP0078382A1 (de) 1983-05-11
EP0078382B1 true EP0078382B1 (de) 1984-09-12

Family

ID=6145209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108401A Expired EP0078382B1 (de) 1981-10-30 1982-09-11 Vorrichtung zum Trocken von Bedruckten Bogen an Offsetdruckmaschinen

Country Status (5)

Country Link
US (1) US4449453A (enrdf_load_stackoverflow)
EP (1) EP0078382B1 (enrdf_load_stackoverflow)
JP (1) JPS58134750A (enrdf_load_stackoverflow)
AT (1) AT383082B (enrdf_load_stackoverflow)
DE (1) DE3143089A1 (enrdf_load_stackoverflow)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730000A (en) * 1984-04-09 1988-03-08 Abbott Laboratories Quinoline antibacterial compounds
US4517894A (en) * 1983-07-21 1985-05-21 Davis James R Modular screen printing apparatus
US4773167A (en) * 1986-05-19 1988-09-27 Amjo Infra Red Dryers, Inc. Heater
US4811493A (en) * 1987-08-05 1989-03-14 Burgio Joseph T Jr Dryer-cooler apparatus
FR2653867B1 (fr) * 1989-10-31 1992-08-21 France Rayonnement Ensemble de sechage par u.v. a plusieurs emetteurs.
SE465765B (sv) * 1990-05-11 1991-10-28 Ivt Graphics Ab Anordning vid infraroed tork foer arkpressar
USD338713S (en) 1992-07-21 1993-08-24 Csb Corporation Combined hot air drying and fan unit for use on a printing press
US5317127A (en) * 1992-08-28 1994-05-31 Pitney Bowes Inc. Apparatus including air blowing and infrared light means for drying ink on a sheet
DE9214459U1 (de) * 1992-10-26 1993-02-04 Weitmann & Konrad GmbH & Co KG, 7022 Leinfelden-Echterdingen Vorrichtung zum thermischen Trocknen von Materialbahnen, -bögen o.dgl.
DE4308712B4 (de) * 1993-03-18 2005-10-13 Windmöller & Hölscher Kg Druckmaschine
DE4322324C2 (de) * 1993-07-05 2002-01-17 Heidelberger Druckmasch Ag Bogentransport und Bogenführung im Auslagebereich von Rotationsdruckmaschinen
DE4325725C2 (de) * 1993-07-30 1998-02-19 Cleanpack Gmbh Innovative Verp Verfahren und Vorrichtung zum Aufwickeln von im Rollen-Offsetdruck bedruckten Folienbahnen
US5537925A (en) * 1993-09-03 1996-07-23 Howard W. DeMoore Infra-red forced air dryer and extractor
US6293196B1 (en) 1993-10-06 2001-09-25 Howard W. DeMoore High velocity, hot air dryer and extractor
DE19549845B4 (de) * 1995-06-24 2007-07-12 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzielung einer einwandfreien Auflage eines Bedruckstoffes in einer Druckmaschine
DE19546720A1 (de) * 1995-12-14 1997-06-19 Hans Georg Platsch Puderbestäubungseinrichtung
US5966836A (en) * 1997-04-11 1999-10-19 Howard W. DeMoore Infrared heating apparatus and method for a printing press
DE29800579U1 (de) * 1998-01-15 1999-05-12 MAN Roland Druckmaschinen AG, 63075 Offenbach Trocknungsvorrichtung an einem Bogentransportsystem einer Druckmaschine
US6951172B2 (en) 1998-03-31 2005-10-04 Heidelberger Druckmaschinen Ag Accessory for a printing unit
DE19814661B4 (de) 1998-03-31 2004-05-13 Heidelberger Druckmaschinen Ag Zusatzeinrichtung für ein Druckwerk
US6367999B1 (en) * 1999-02-15 2002-04-09 Hewlett-Packard Company Hardcopy apparatus and method for providing uniform pressure to hold down media
US6877247B1 (en) 2000-08-25 2005-04-12 Demoore Howard W. Power saving automatic zoned dryer apparatus and method
DE10101775A1 (de) * 2001-01-17 2002-07-18 Nexpress Solutions Llc Konditioniervorrichtung zur Veränderung des Feuchtegehalts von Druckträgern

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955055A (en) * 1928-06-25 1934-04-17 Nellie B Date Electrical heater
CH149442A (de) * 1930-09-17 1931-09-15 Strahm Robert Einrichtung an Bogendruckmaschinen zum raschen Trocknen der Bogen.
GB386840A (en) * 1932-04-19 1933-01-26 Robert Strahm Improvements in apparatus for drying printed sheets
DE613552C (de) * 1933-02-28 1935-05-22 Maschf Augsburg Nuernberg Ag Bogenausfuehrvorrichtung fuer Rotationstiefdruckmaschinen
AT140272B (de) * 1934-03-03 1935-01-25 Maschf Augsburg Nuernberg Ag Bogenausleger für Druckmaschinen.
US2041238A (en) * 1934-05-23 1936-05-19 Beistle Company Attachment for printing presses
US2220928A (en) * 1937-05-22 1940-11-12 American Can Co Method of and apparatus for producing and utilizing radiant heat
US2269236A (en) * 1939-03-02 1942-01-06 Svenska Flaektfabriken Ab Method and device for controlling the heat supply in cellulose driers
GB576829A (en) * 1942-04-24 1946-04-23 Gen Electric Co Ltd Improvements in paint-drying and like apparatus
CH229202A (de) * 1942-07-17 1943-10-15 Mailaender Willy Verfahren zum Trocknen von bedruckten Flächen, insbesondere in Mehrfarben-Tiefdruckmaschinen, und Mehrfarben-Tiefdruckmaschine.
GB781105A (en) * 1954-02-19 1957-08-14 Fr Des Antimaculateurs Electro An apparatus for the rapid drying of printed sheets
US3499231A (en) * 1964-06-23 1970-03-10 Fostoria Fannon Inc A fast automatic infrared drying and fusing apparatus for a high melt coating on an easily combustible web
FR2086751A5 (enrdf_load_stackoverflow) * 1970-04-08 1971-12-31 Leguen Georges
SU474664A1 (ru) * 1972-12-11 1975-06-25 Проектно-Конструкторское Бюро Мебели Установка дл сушки лакокрасочных покрытий на кромках щитов
JPS49119710A (enrdf_load_stackoverflow) * 1973-03-19 1974-11-15
DE2351280B2 (de) * 1973-10-12 1979-01-25 Babcock-Bsh Ag Vormals Buettner- Schilde-Haas Ag, 4150 Krefeld Prallstrahltrockner für bahnförmiges Gut
DE2731075A1 (de) * 1977-07-09 1979-01-25 Eugen Knobel Durchlaufofen fuer warenbahnen
IT8021284V0 (it) * 1980-03-25 1980-03-25 Argon Service Ltd Forno di asciugatura a raggi infrarossi di tipo perfezionato.
DE3107487A1 (de) * 1981-02-27 1982-09-16 Svecia Silkscreen Maskiner AB, 14502 Norsborg "trockenanlage"
JPH05256615A (ja) * 1992-03-11 1993-10-05 Ngk Insulators Ltd 円筒状セラミックス成形体の肉厚測定方法

Also Published As

Publication number Publication date
DE3143089A1 (de) 1983-05-26
AT383082B (de) 1987-05-11
US4449453A (en) 1984-05-22
EP0078382A1 (de) 1983-05-11
JPS58134750A (ja) 1983-08-11
ATA353782A (de) 1986-10-15
DE3143089C2 (enrdf_load_stackoverflow) 1989-02-23
JPH0331579B2 (enrdf_load_stackoverflow) 1991-05-07

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