EP0000011B2 - Bogenrotationsdruckmaschine. - Google Patents

Bogenrotationsdruckmaschine. Download PDF

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Publication number
EP0000011B2
EP0000011B2 EP78100018A EP78100018A EP0000011B2 EP 0000011 B2 EP0000011 B2 EP 0000011B2 EP 78100018 A EP78100018 A EP 78100018A EP 78100018 A EP78100018 A EP 78100018A EP 0000011 B2 EP0000011 B2 EP 0000011B2
Authority
EP
European Patent Office
Prior art keywords
sheet
drum
guide plate
sheet transfer
printing
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
EP78100018A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0000011B1 (de
EP0000011A1 (de
Inventor
Gerhard Pollich
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 EP0000011A1 publication Critical patent/EP0000011A1/de
Publication of EP0000011B1 publication Critical patent/EP0000011B1/de
Application granted granted Critical
Publication of EP0000011B2 publication Critical patent/EP0000011B2/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
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine

Definitions

  • the invention relates to a sheet-fed rotary printing press for face and back printing with sheet transfer drums arranged between the printing units, under which stationary sheet-guiding plates extending over their entire width are provided.
  • a device for sheet transfer and application in which hollow sheet guide bars with air outlet openings are arranged below the transfer point of the sheet between the printing cylinder and sheet transfer drum. Air is blown out of these air outlet openings with increased pressure in order to prevent the fine pressure on the sheet guiding bars from being smeared off.
  • the DT-PS 21 28 216 discloses a device for sheet transfer and use in printing presses for optional face or reverse printing, in which a sheet transfer drum together with the upstream printing cylinder represent a sheet turning station. Both under the impression cylinder and under the sheet transfer drum, a sheet guide plate is provided stationary at a short distance from the drum or cylinder circumference, which are connected to one another via an adjustable third or middle sheet guide plate. The last-mentioned sheet guide plate can be converted into a face and a face and back printing position.
  • all three sheet guide plates form a closed guide which, tangentially starting from the circumference of the impression cylinder, opens into an equidistant path running near the circumference of the sheet transfer drum.
  • the middle sheet is used as a paddock; a thrust loop is pivoted into the gap between the printing cylinder and the sheet transfer drum, so that it extends tangentially to it at a short distance from the circumference of the sheet transfer drum.
  • a disadvantage of the known device is that in the perfecting position because of the tangential. Guiding the sheet guide in the reversal of the movement of the sheet guided by the impression cylinder, so when it has been detected at its rear edge, because of its low speed at this time and its movement parallel to the sheet guide, it tends very easily to at least with its rear end on the Lay the sheet guide plate, whereby the printed underside of the sheet is smeared. But the face-to-face position of the middle sheet guide plate is also not without problems. Experiments have shown that the sheet end tends to stick to the cylinder circumference of the impression cylinder or to overtake the cylinder in the case of particularly smooth papers, which is why it slides over the upper edge of the middle sheet sheet employed.
  • the second turning station is now, for example, in a five-color press with two turning stations between printing unit two and three, the underside of the sheet is printed on a four-color fine and single-color counterprint. Despite the fine printing position of the sheet guide plate, this printed underside of the sheet smears because it is pulled over the edge of the adjusted sheet guide plate.
  • the object of the invention is to attach sheet guide plates under sheet transfer drums in such a stationary manner that the sheet is gently guided both in straight printing and in perfecting and smearing of a printed underside of the sheet does not occur.
  • the invention consists in that the sheet guide plate of the sheet transfer drum upstream of a printing cylinder approaches the drum circumference in the direction of drum rotation and the sheet guide plate of the sheet transfer drum which is respectively arranged downstream of the printing cylinder moves away from the drum circumference in the direction of drum rotation, such that there is between the underside of the sheet transported by the respective sheet transfer drum and the associated guide plate inevitably forms an air cushion at every machine speed, the sheet transfer drum arranged directly in front of the printing cylinder being designed as a turning drum and the end of the sheet transfer plate, which is arranged upstream of the turning drum, runs almost radially to the turning drum, that is to say downwards, from the turning drum points.
  • DE-B-2544566 and DE-B-25 52 998 have already made known sheet guiding plates for chain chain laying, which are intended to feed the sheet taken from the last printing unit to the delivery stack without smearing by forming an air cushion.
  • the lower end of the sheet guide plate is guided tangentially past the take-up drum in the form of an extension. This measure cannot prevent the ends of stiffer sheets from spreading from the take-off drum and hitting the edge of the sheet guide plate before an air cushion forms. Lubrication of the printed sheet side cannot consequently be prevented with a sheet guide plate extending tangentially beyond the removal drum.
  • the second-mentioned also referring to a sheet delivery DE-B-2552998 shows a sheet guide plate, which begins directly in the vicinity of the sheet transfer point between the last printing cylinder and the chain delivery and steadily, z. B. spirally, removed from the take-off drum.
  • this measure promotes the formation of an air cushion on the sheet guide plate, because the trailing edge of the sheet lies against the spiral-shaped sheet guide plate end and thereby pushes an air cushion in front of it.
  • An air cushion is only formed in cooperation with the baffle section under the chain arm.
  • both curved guide plate guides in the known chain brackets do not give any indication as to how a curved guide plate is to be formed under a turning drum, namely pointing radially downward, in order to reliably prevent smearing.
  • a printing unit 1 of a multicolor printing machine which is located in the middle area, is shown, which can be converted from straight printing to face and back printing.
  • the printing unit 1 consists, as usual, of a plate cylinder 2, a blanket cylinder 3 and a printing cylinder 4.
  • the printing cylinder 4 is preceded by a sheet transfer drum 5 designed as a reversing drum and a sheet transfer drum 6 provided with a double diameter.
  • a sheet transfer drum 7 with a diameter that corresponds to that of the printing cylinder 4.
  • the sheet transfer drum 7 there is again a sheet transfer drum 6 with a double diameter.
  • the sheet transfer drum5 is therefore only called turning drum in the following.
  • Both sheet guide plates 10 and 10 are fastened to a crossbar 8 fixed to the housing and which extends below the printing cylinder 4. Both sheet guide plates 9 and 10 extend over the entire width of the sheet transfer drums.
  • the sheet guide plate 9 is located under the turning drum 5 and the sheet guide plate 10 is located under the sheet transfer drum 7.
  • the upper end 11 of the sheet guide plate 9 begins in the immediate vicinity of the printing cylinder 4, then runs parallel for a short distance at a short distance, i. H. Equidistant from the drum circumference 12 of the turning drum 5, it then moves away from the drum circumference 12 and practically opens into the lower end 13, which runs almost radially to the turning drum 5 and extends almost as far downward as the sheet transfer drum 6 with a double diameter .
  • the sheet guide plate 9 has a slightly sinusoidally curved shape.
  • the upper end 14 of the other sheet guide plate 10 also begins in the immediate vicinity of the printing cylinder 4. At this point, the sheet guide plate 10 is closest to the drum circumference 15 of the sheet transfer drum 7 and it spirally moves away from the drum circumference in the direction of rotation of the sheet transfer drum 7.
  • the sheet transfer drum 7 has taken over the sheet from the impression cylinder 4 and transfers it to the sheet transfer drum 6 with a double diameter.
  • the rear end of the sheet is pressed so firmly onto the outer surface of the printing cylinder 4 that the sheet must be removed from the printing cylinder 4 and therefore clings closely to the drum circumference 15 of the sheet transfer drum 7.
  • the non-printed trailing edge of the sheet lies on the sheet guide plate 10 and pushes an air cushion in front of it, which prevents the printed surface of the underside of the sheet from coming into contact with the guide surface of the sheet guide plate 10.
  • smearing of the printed underside of the sheet is effectively prevented.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP78100018A 1977-06-02 1978-06-01 Bogenrotationsdruckmaschine. Expired EP0000011B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2724856A DE2724856C3 (de) 1977-06-02 1977-06-02 Bogenrotationsdruckmaschine
DE2724856 1977-06-02

Publications (3)

Publication Number Publication Date
EP0000011A1 EP0000011A1 (de) 1978-12-20
EP0000011B1 EP0000011B1 (de) 1980-04-30
EP0000011B2 true EP0000011B2 (de) 1983-08-24

Family

ID=6010493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100018A Expired EP0000011B2 (de) 1977-06-02 1978-06-01 Bogenrotationsdruckmaschine.

Country Status (12)

Country Link
US (1) US4203361A (it)
EP (1) EP0000011B2 (it)
JP (1) JPS542807A (it)
AT (1) AT362402B (it)
AU (1) AU514401B2 (it)
BR (1) BR7803516A (it)
CA (1) CA1092437A (it)
DE (1) DE2724856C3 (it)
ES (1) ES470290A1 (it)
GB (1) GB1577508A (it)
IT (1) IT1108372B (it)
ZA (1) ZA781172B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10918107B2 (en) 2015-05-20 2021-02-16 Conopco, Inc. Encapsulated lactams

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228140A1 (de) * 1982-07-28 1984-02-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Leitungs- und leitungsverbindungssystem fuer die druckmittelversorgung von maschinen
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
DE3602084A1 (de) * 1986-01-24 1987-07-30 Heidelberger Druckmasch Ag Bogenueberfuehrtrommel zwischen den druckwerken von rotationsdruckmaschinen
DE3710257A1 (de) * 1987-03-28 1988-10-13 Heidelberger Druckmasch Ag Bogen-rotationsdruckmaschine zur herstellung von einseitigem mehrfarbendruck oder schoen- und widerdruck
DE3830070A1 (de) * 1988-09-03 1990-03-15 Roland Man Druckmasch Mechanische bogenleiteinrichtung in der bogenanlage an druckmaschinen
DE9416106U1 (de) * 1994-10-06 1994-11-24 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Bogenleitblech für eine Wendeeinrichtung
DE19514252C1 (de) * 1995-04-15 1996-08-22 Heidelberger Druckmasch Ag Bogenrotationsdruckmaschine
KR20020055612A (ko) * 2000-12-29 2002-07-10 김형국 자동장착 익스펜드
DE10357439B4 (de) * 2003-12-09 2014-07-31 manroland sheetfed GmbH Bedruckstoffleiteinrichtung in einer Verarbeitugsmaschine
DE102015209688B4 (de) 2014-06-18 2020-06-10 Koenig & Bauer Ag Wendevorrichtung für Bogen und Verfahren zum Wenden von Bogen mit einer Wendevorrichtung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE555814C (de) * 1928-11-11 1932-07-29 Hamburger Fremdenblatt Brosche Mehrfarben-Rotationsdruckmaschine fuer Bogen
FR883712A (fr) * 1942-07-01 1943-07-13 Procédé de séchage des surfaces imprimées, en particulier dans les machines à imprimer en creux en plusieurs couleurs, et machine à imprimer en creux en plusieurs couleurs
US2610850A (en) * 1948-02-24 1952-09-16 Huck Co Sheet delivery mechanism for printing machines
DE1102767B (de) * 1958-08-21 1961-03-23 Miehle Goss Dexter Inc Bogentransporteinrichtung an Druckpressen
US2933039A (en) * 1958-08-21 1960-04-19 Miehle Goss Dexter Inc Sheet transferring mechanism
DE1561101A1 (de) * 1966-12-27 1970-01-08 Planeta Veb Druckmasch Werke Bogenleiteinrichtung fuer Bogenfuehrungszylinder
DE2128216C3 (de) * 1970-07-20 1976-09-30 Polygraph Leipzig Vorrichtung zur Bogenuebergabe und -wendung in Druckmaschinen fuer wahlweisen Schoen- oder Schoen- und Widerdruck
US3742847A (en) * 1970-11-27 1973-07-03 Polygraph Leipzig Kom Veb Sheet turning mechanism for perfectors
DE2137115A1 (de) * 1971-07-24 1973-02-01 Maschf Augsburg Nuernberg Ag Bogenfoerdereinrichtung
DE2544566C3 (de) * 1975-10-04 1984-11-15 Miller Printing Equipment Corp., Pittsburgh, Pa. Bogenausleger für Bogendruckmaschinen
DE2552998C2 (de) * 1975-11-26 1983-11-10 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenausleger für Rotationsdruckmaschinen
US4099463A (en) * 1977-04-13 1978-07-11 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Maschinen Und Ausruestungen Support arrangement for guiding sheets through a printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10918107B2 (en) 2015-05-20 2021-02-16 Conopco, Inc. Encapsulated lactams

Also Published As

Publication number Publication date
ES470290A1 (es) 1979-02-01
DE2724856A1 (de) 1978-12-07
AU3409678A (en) 1979-09-20
ATA389778A (de) 1980-10-15
DE2724856B2 (de) 1979-03-15
AU514401B2 (en) 1981-02-05
BR7803516A (pt) 1979-02-13
JPS542807A (en) 1979-01-10
CA1092437A (en) 1980-12-30
EP0000011B1 (de) 1980-04-30
AT362402B (de) 1981-05-25
GB1577508A (en) 1980-10-22
IT7868265A0 (it) 1978-06-01
EP0000011A1 (de) 1978-12-20
DE2724856C3 (de) 1984-06-20
US4203361A (en) 1980-05-20
JPS5545386B2 (it) 1980-11-18
IT1108372B (it) 1985-12-09
ZA781172B (en) 1979-02-28

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