EP0000011A1 - Machine rotative pour imprimer des feuilles. - Google Patents

Machine rotative pour imprimer des feuilles. Download PDF

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Publication number
EP0000011A1
EP0000011A1 EP78100018A EP78100018A EP0000011A1 EP 0000011 A1 EP0000011 A1 EP 0000011A1 EP 78100018 A EP78100018 A EP 78100018A EP 78100018 A EP78100018 A EP 78100018A EP 0000011 A1 EP0000011 A1 EP 0000011A1
Authority
EP
European Patent Office
Prior art keywords
sheet
drum
printing
transfer drum
guide plate
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
EP78100018A
Other languages
German (de)
English (en)
Other versions
EP0000011B2 (fr
EP0000011B1 (fr
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/fr
Application granted granted Critical
Publication of EP0000011B1 publication Critical patent/EP0000011B1/fr
Publication of EP0000011B2 publication Critical patent/EP0000011B2/fr
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, preferably for face and back printing, with sheet transfer drums arranged between the printing units, under which sheet guide plates extending over their entire width are provided.
  • a device for sheet transfer and application is also known, in which sheet guide bars are arranged below the transfer point of the sheet between the printing cylinder and sheet transfer drum.
  • the sheet guide bars must be converted when the machine is switched from face printing to face and reverse printing or vice versa according to the respective sheet path.
  • 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 printing cylinder represent a sheet turning station.
  • 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 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 close to the circumference of the sheet transfer drum.
  • the middle sheet is pivoted as a coupling of a pushing loop into the gap between the printing cylinder and 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 guidance of the sheet guideway, in the reversal of the movement of the sheet guided by the impression cylinder, that is to say when it has been detected on its trailing edge, because of its low speed at that time and its movement parallel to the sheet guideway tends very easily to lay down at least with its rear end on the sheet guiding plate. As a result, 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.
  • a printing unit 1 of a multicolor printing machine which is located in the central area, is shown, which can be converted from straight printing to surface printing.
  • the printing unit 1 consists, as usual, of a plate cylinder 2, a rubber cylinder 3 and a printing cylinder 4.
  • the printing cylinder 4 is preceded by a sheet transfer drum 5 designed as a blowing 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.
  • a sheet transfer drum 6 with a double diameter.
  • the sheet transfer drum 5 being designed as a turning drum if it is a turning station, which is the case here.
  • Example is the case.
  • the sheet transfer drum 5 is therefore only called turning drum in the following.
  • Two sheet guide plates 9 and 10 are fastened to a crossbar 8 fixed to the housing and which extends below the pressure 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 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 a short distance at a short distance.
  • Distance parallel, ie equidistant, to the drum circumference 12 of the turning drum 5, 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 down as side 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 guided gently both in the case of cut printing as well as perfecting and smearing of a printed underside of the sheet does not occur.
  • the invention consists in that the sheet guide plates are fastened in a stationary manner and are each assigned to a sheet transfer drum, the sheet guide plate of the sheet transfer drum upstream of a printing cylinder approaching the drum circumference in the direction of drum rotation and the sheet guide plate of a sheet transfer drum arranged downstream of the printing cylinder being removed from the drum circumference in the direction of drum rotation, such that an air cushion inevitably forms between the underside of the sheet transported by the respective sheet transfer drum and the associated sheet guide plate at any machine speed,
  • the sheet guide plate 9 thus 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 operation of the two sheet guide plates 9 and 10 is different.
  • the end of the sheet guided by the turning drum 5 slides out of the gap between the turning drum 5 and the sheet transfer drum 6 when the turning device 5 consisting of the turning drum 5 and the sheet transfer drum 6 slides out, it forms an air wedge with the surface of the sheet guide plate 9 when falling downwards.
  • This air wedge compresses to a safe air cushion as soon as the bow end is drawn into the area in which the upper end 10 of the sheet guide plate 9 runs practically equidistant from the drum circumference 12 of the turning drum 5.
  • the possibly printed underside does not strike the guide surface of the sheet guide plate 9.
  • the sheet transfer plate 10 behaves differently.
  • the sheet transfer drum 7 has taken over the sheet from 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 Machine rotative pour imprimer des feuilles. Expired EP0000011B2 (fr)

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 true EP0000011A1 (fr) 1978-12-20
EP0000011B1 EP0000011B1 (fr) 1980-04-30
EP0000011B2 EP0000011B2 (fr) 1983-08-24

Family

ID=6010493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100018A Expired EP0000011B2 (fr) 1977-06-02 1978-06-01 Machine rotative pour imprimer des feuilles.

Country Status (12)

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

Cited By (4)

* 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
EP0230032A2 (fr) * 1986-01-24 1987-07-29 Heidelberger Druckmaschinen Aktiengesellschaft Tambour de transfert de feuilles entre les unités d'impression d'une rotative d'impression
KR20020055612A (ko) * 2000-12-29 2002-07-10 김형국 자동장착 익스펜드
US10918107B2 (en) 2015-05-20 2021-02-16 Conopco, Inc. Encapsulated lactams

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722908Y2 (fr) * 1979-09-06 1982-05-18
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
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
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933039A (en) * 1958-08-21 1960-04-19 Miehle Goss Dexter Inc Sheet transferring mechanism

Family Cites Families (11)

* 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
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933039A (en) * 1958-08-21 1960-04-19 Miehle Goss Dexter Inc Sheet transferring mechanism

Cited By (5)

* 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
EP0230032A2 (fr) * 1986-01-24 1987-07-29 Heidelberger Druckmaschinen Aktiengesellschaft Tambour de transfert de feuilles entre les unités d'impression d'une rotative d'impression
EP0230032A3 (en) * 1986-01-24 1989-04-12 Heidelberger Druckmaschinen Aktiengesellschaft Sheet transfer drum between the printing units of a rotary printing machine
KR20020055612A (ko) * 2000-12-29 2002-07-10 김형국 자동장착 익스펜드
US10918107B2 (en) 2015-05-20 2021-02-16 Conopco, Inc. Encapsulated lactams

Also Published As

Publication number Publication date
EP0000011B2 (fr) 1983-08-24
AU3409678A (en) 1979-09-20
JPS5545386B2 (fr) 1980-11-18
IT7868265A0 (it) 1978-06-01
ATA389778A (de) 1980-10-15
AT362402B (de) 1981-05-25
AU514401B2 (en) 1981-02-05
JPS542807A (en) 1979-01-10
GB1577508A (en) 1980-10-22
ZA781172B (en) 1979-02-28
CA1092437A (fr) 1980-12-30
ES470290A1 (es) 1979-02-01
DE2724856A1 (de) 1978-12-07
EP0000011B1 (fr) 1980-04-30
US4203361A (en) 1980-05-20
IT1108372B (it) 1985-12-09
BR7803516A (pt) 1979-02-13
DE2724856B2 (de) 1979-03-15
DE2724856C3 (de) 1984-06-20

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