EP1044812A1 - Tambour de transfert avec capuchons pivotants - Google Patents

Tambour de transfert avec capuchons pivotants Download PDF

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Publication number
EP1044812A1
EP1044812A1 EP00105721A EP00105721A EP1044812A1 EP 1044812 A1 EP1044812 A1 EP 1044812A1 EP 00105721 A EP00105721 A EP 00105721A EP 00105721 A EP00105721 A EP 00105721A EP 1044812 A1 EP1044812 A1 EP 1044812A1
Authority
EP
European Patent Office
Prior art keywords
drum
cap
transfer
transfer drum
flap
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
EP00105721A
Other languages
German (de)
English (en)
Other versions
EP1044812B1 (fr
Inventor
Michael Koch
Andrea Franke
Peter Patzelt
Dietmar Müller
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1044812A1 publication Critical patent/EP1044812A1/fr
Application granted granted Critical
Publication of EP1044812B1 publication Critical patent/EP1044812B1/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
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • 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

Definitions

  • the invention relates to a transfer drum with pivotable drum caps between Printing units or after coating units of sheet-fed printing machines.
  • Sheet transfer drums of printing presses must be designed in such a way that the printed or varnished surfaces of the sheet on the drum shell are not smeared. Since on the one hand the sheets to be transported behave differently depending on their bending stiffness during transport and on the other hand different sheet guiding means are preferred depending on the previous pressure levels, different sheet guiding variants on transfer drums were developed which are only optimally suited for certain types of material and printing variants.
  • an air cushion is built up on the drum surface, for example with the aid of blown air which flows through air outlet openings in the drum jacket (DE 4 434 778).
  • DE 3 536 442 describes a sheet guiding cylinder for a wide range of paper types described, on the circumference of which pivotable cap segments are arranged, from which blowing air emerges radially and through the baffles located between the segments are sealed against each other.
  • the disadvantage of this construction is the high constructive effort, the additional necessary manual adjustment of the final Dust bites via a worm gear and the many setting parameters for the operator.
  • the object of the invention is therefore to create a flexible transfer drum, the one that is optimal for every material thickness to be processed with little changeover effort Lubrication-free guidance of printed or varnished sheets guaranteed
  • the movable flaps between the rear edges of the radially swiveling drum caps and the drum body close off the interior of the drum and thereby enable the generation of overpressure inside the drum by means of a suitable air supply system.
  • the air cushion required for the smear-free sheet guidance of printed or coated paper is then created via air outlet openings in the drum caps.
  • the drum caps are pivoted inwards together with the flaps according to the invention. Rigid arches can relax in the resulting free spaces without damaging the printed or painted surface.
  • This means that the same transfer drum can be used preferably for the transfer of paper when the drum caps with the air cushion are pivoted outwards, and preferably for rigid cardboard with the drum caps pivoted inwards without the air cushion.
  • the transfer drum according to the invention can look in detail as shown in FIG. 1.
  • side parts 1 are fastened, each of which has on its inside a circumferential stop 2 for two pivotable drum caps 3, which at the same time takes over the sealing between drum caps 3 and side parts 1.
  • the drum caps 3 have air outlet openings and are each rotatably supported at their front edges, as seen in the direction of sheet travel, on diametrically opposite drum cap joints 14 on the drum body 10 and, with the aid of two pneumatic cylinders 8, are either in a pivoted-out outer position 3a (solid lines) or a pivoted-in inner position 3b (dash-dot lines) ) emotional.
  • the pneumatic cylinders 8 are attached to the drum body 10 below the gripper bridges 9 and engage with the piston rod heads in corresponding joints 16 on the respective underside of the drum cap.
  • the flaps 4 according to the invention are located on the rear edges 11 of the drum caps 3. They are mounted tangentially displaceably on guide rollers 7 on the underside of the drum caps by means of laterally attached rollers 6 and are connected via a hinge band 5 to metal sheets 12 which are attached to the drum body 10 in the area of the gripper bridges 9 are. For the transport of sheets of paper, the two drum caps 3 are swung out into the outer position 3a.
  • the side parts 1 of the transfer drum, the pivotable drum caps 3, the flaps 4 and the sheets 12 form two drum interiors which are closed to the outside and which can be subjected to air pressure by suitable air supply systems 15.
  • This purpose is fulfilled, for example, by fans built into the side parts 1 and only indicated in FIG. 1. Blown air is conducted into the inside of the drum through the side parts 1 and the outer air cushion is built up via air outlet openings in the drum caps 3.
  • the drum caps 3 are pivoted pneumatically inwards up to the metal sheets 12 (FIG. 3b) and thereby increase the space between the sheet and the drum cap 3 required to relax the sheet.
  • FIGS. 2 and 3 show two variants of use for the transfer drum 18 described.
  • the sheet transport between two printing units 17 or between coating and drying units within sheet-processing offset printing presses in series is carried out by one or three transfer drums 18, at least one transfer drum 18 being designed according to the invention

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP00105721A 1999-03-20 2000-03-17 Tambour de transfert avec capuchons pivotants Expired - Lifetime EP1044812B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912709A DE19912709C2 (de) 1999-03-20 1999-03-20 Übergabetrommel mit schwenkbaren Trommelkappen
DE19912709 1999-03-20

Publications (2)

Publication Number Publication Date
EP1044812A1 true EP1044812A1 (fr) 2000-10-18
EP1044812B1 EP1044812B1 (fr) 2003-05-21

Family

ID=7901848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105721A Expired - Lifetime EP1044812B1 (fr) 1999-03-20 2000-03-17 Tambour de transfert avec capuchons pivotants

Country Status (2)

Country Link
EP (1) EP1044812B1 (fr)
DE (2) DE19912709C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335773B4 (de) * 2002-09-17 2008-05-08 Heidelberger Druckmaschinen Ag Bogentransporttrommel

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10355045B4 (de) 2002-12-20 2018-09-06 Heidelberger Druckmaschinen Ag Verfahren zur Variation eines Trommelprofils einer Vario-Trommel und Vario-Trommel zur Durchführung des Verfahrens
DE102004009703A1 (de) 2004-02-27 2005-09-15 Heidelberger Druckmaschinen Ag Maschine zum Verarbeiten von Bogen aus Bedruckstoff
DE102004021730B4 (de) * 2004-04-30 2011-08-18 KOENIG & BAUER Aktiengesellschaft, 97080 Bogenführungseinrichtung in Druckmaschinen
DE102005057367A1 (de) * 2005-12-01 2007-06-06 Koenig & Bauer Ag Bogendruckmaschine und Verfahren zum Betreiben der Bogendruckmaschine
DE102010023485A1 (de) 2009-07-09 2011-01-13 Heidelberger Druckmaschinen Ag Bogenführungstrommel
DE102009035931A1 (de) 2009-08-04 2011-02-10 Tesa Se Mehrschichtiges Etikett
DE102009046625A1 (de) 2009-11-11 2011-05-12 Tesa Se Etikett mit Effektpigmenten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536442A1 (de) * 1984-11-27 1986-05-28 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogenleiteinrichtung an bogenfuehrungszylindern von druckmaschinen
US5579691A (en) * 1994-12-20 1996-12-03 Heidelberger Druckmaschinen Ag Sheet transfer drum in a multi-color sheet-fed rotary printing press

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602084A1 (de) * 1986-01-24 1987-07-30 Heidelberger Druckmasch Ag Bogenueberfuehrtrommel zwischen den druckwerken von rotationsdruckmaschinen
DE4434778C1 (de) * 1994-09-29 1995-11-30 Roland Man Druckmasch Bogenführungsmodul für eine Wendeeinrichtung in einer für Schöndruck oder Schön- und Wiederdruck einsetzbaren Rotationsdruckmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536442A1 (de) * 1984-11-27 1986-05-28 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogenleiteinrichtung an bogenfuehrungszylindern von druckmaschinen
US5579691A (en) * 1994-12-20 1996-12-03 Heidelberger Druckmaschinen Ag Sheet transfer drum in a multi-color sheet-fed rotary printing press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335773B4 (de) * 2002-09-17 2008-05-08 Heidelberger Druckmaschinen Ag Bogentransporttrommel

Also Published As

Publication number Publication date
DE19912709C2 (de) 2000-12-28
EP1044812B1 (fr) 2003-05-21
DE19912709A1 (de) 2000-10-05
DE50002235D1 (de) 2003-06-26

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