EP0508218B1 - Dispositif de guidage de feuilles sur cylindres de transfert pour machines à imprimer des feuilles - Google Patents

Dispositif de guidage de feuilles sur cylindres de transfert pour machines à imprimer des feuilles Download PDF

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Publication number
EP0508218B1
EP0508218B1 EP92105105A EP92105105A EP0508218B1 EP 0508218 B1 EP0508218 B1 EP 0508218B1 EP 92105105 A EP92105105 A EP 92105105A EP 92105105 A EP92105105 A EP 92105105A EP 0508218 B1 EP0508218 B1 EP 0508218B1
Authority
EP
European Patent Office
Prior art keywords
sheet
bevel gear
drum
sheets
segments
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.)
Revoked
Application number
EP92105105A
Other languages
German (de)
English (en)
Other versions
EP0508218A1 (fr
Inventor
Rolf Martin Lange
Erich Wegel
Hans-Jürgen Rottstedt
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=6429030&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0508218(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
Publication of EP0508218A1 publication Critical patent/EP0508218A1/fr
Application granted granted Critical
Publication of EP0508218B1 publication Critical patent/EP0508218B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B41F21/08—Combinations of endless conveyors and grippers
    • 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

Definitions

  • the invention relates to a sheet guide on sheet guide drums of sheet printing machines according to the preamble of the first claim.
  • the known ring segments can only absorb axial forces in one direction, which is why they are arranged in mirror image at both ends of the drum for counter support. Radial forces cannot be absorbed, so they are not suitable for carrying the bow.
  • known sheet guiding means must also be attached, for example with a sawtooth-like outer boundary, so that the sheets each have only point contact with the drum or drum shell.
  • the sheet metal shells are provided with a large number of bores, not shown, which ensure an outflow of the air flow generated by the rotating movement of the drum. Due to the well-known ring segments, the arch is guided on its transport path in a shaft that prevents lateral evasion.
  • the additional sheet guiding means provided between the L-shaped ring segments may have a maximum support width which depends on the thickness and the rigidity of the sheet material. However, it is not possible to do without the additional sheet guiding means between the ring segments. If such sheet guiding means are used, then pressure-free corridors must be available for lubrication-free sheet conveyance. There is a risk of smearing with all-over prints.
  • the advantage of the invention is that axial and radial forces can be absorbed by the bevel gear segments, so that rigid arch material up to a certain width, e.g. rigid cardboard or sheet metal material can be greased around the edge of a sheet guide drum without scratching and without scratching the printed image and without damaging the sheet, because additional means for preventing lubrication of any kind are missing between the outer bevel gear segments.
  • rigid arch material up to a certain width, e.g. rigid cardboard or sheet metal material can be greased around the edge of a sheet guide drum without scratching and without scratching the printed image and without damaging the sheet, because additional means for preventing lubrication of any kind are missing between the outer bevel gear segments.
  • the printing unit 1 of a sheet offset rotary printing press shown in FIG. 1 is constructed and comprises in a conventional manner two plate / rubber cylinder pairs 2, 3 and 4, 5.
  • the printed sheet 12 is transferred via a take-up drum 7 to a transport chain 8 which conveys the sheet 12 either to a further printing unit, not shown, or to a sheet delivery.
  • Gripper carriages 9 with corresponding known gripper systems usually grip the sheet 12 at its front edge and take it over from the impression cylinder 6. After the sheets 12 have been transferred to the gripper carriages 9, they are guided around the take-up drum 7 and transported further in a sloping sheet guiding area. The back of the sheet 12 is guided by curved guide elements 10 and by blow boxes 11.
  • Sheets 12 guided around the take-up drum 7 tend to smear on a lateral surface or on supporting elements. According to the invention, therefore, such sheet guiding elements are missing from the take-up drum 7.
  • the gripper carriages 9 run in a known manner into recesses 17, which are provided comparable to a drum channel.
  • the bevel gear segments 13, 14 are attached to the drum shaft 16, for example, by means of clamping screws 15.
  • the two bevel gear segments 13, 14 are set in the axial direction on the side edges of rigid sheet 12 of a certain width so that they are conveyed by the printing machine without smearing.
  • the bevel gear segments 13, 14 force the side edges of the rigid bends 12 into a radial position, which is characterized by mutually aligned heights. Since axial forces can only be absorbed in one direction, the mirror image arrangement of the Bevel gear segments 13, 14 thus for counter-support of the arch 12 and at the same time for radial support at a set height.
  • the aligned heights of the bevel gear segments 13, 14 may have a maximum support width for guiding and carrying in the axial direction, which depends on the thickness and rigidity of the sheet material and is at least so large that the sheet 12 does not sag in the middle part of its width.
  • the drawing does not show, but it is of course possible to provide known additional mechanical, pneumatic or other (eg super-blue) sheet guiding means on the drum shaft 16 between the bevel gear segments 13, 14, but with the disadvantage that the risk of lubrication increases again , whereby the arch 12 can optionally also be brought into a curved stable shape with a medium support, which stabilizes the support of the side edges on the bevel gear segments 13, 14.
  • known additional mechanical, pneumatic or other (eg super-blue) sheet guiding means on the drum shaft 16 between the bevel gear segments 13, 14, but with the disadvantage that the risk of lubrication increases again , whereby the arch 12 can optionally also be brought into a curved stable shape with a medium support, which stabilizes the support of the side edges on the bevel gear segments 13, 14.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (4)

  1. Dispositif de guidage de feuilles sur des cylindres de transfert de feuilles (7) de machines d'impression à feuilles, des segments étant prévus de façon correspondante sur le cylindre de transfert de feuilles (7), en pouvant être déplacés axialement et fixés, à une distance quelque peu plus grande que la largeur respective de la feuille (12), segments qui guident la feuille (12) sur le bord latéral,
    caractérisé en ce que, sur un côté de l'arbre (16) du cylindre de transfert de feuilles (7), il est prévu un segment de roue conique (13), auquel est associé, de façon symétrique, sur l'autre côté de l'arbre (16) du cylindre, un second segment de roue conique (14), lesquels segments guident et portent sans maculage, sur le bord latéral, des feuilles (12) résistant à la flexion de largeur déterminée.
  2. Dispositif de guidage de feuilles selon la revendication 1,
    caractérisé en ce que les segments de roue conique (13,14) sont prévus en pouvant être déplacés axialement et fixés sur l'arbre (16) du cylindre de transfert.
  3. Dispositif de guidage de feuilles selon les revendications 1 et 2,
    caractérisé en ce que les segments de roue conique (13,14) sont fixés sur l'arbre (16) du cylindre de transfert par des vis de serrage (15).
  4. Dispositif de guidage de feuilles selon les revendications 1 à 3,
    caractérisé en ce que, au centre entre les segments de roue conique (13,14), sur l'arbre (16) du cylindre de transfert, il est prévu des segments supplémentaires contre le maculage.
EP92105105A 1991-04-08 1992-03-25 Dispositif de guidage de feuilles sur cylindres de transfert pour machines à imprimer des feuilles Revoked EP0508218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4111262 1991-04-08
DE4111262A DE4111262C1 (fr) 1991-04-08 1991-04-08

Publications (2)

Publication Number Publication Date
EP0508218A1 EP0508218A1 (fr) 1992-10-14
EP0508218B1 true EP0508218B1 (fr) 1994-09-21

Family

ID=6429030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105105A Revoked EP0508218B1 (fr) 1991-04-08 1992-03-25 Dispositif de guidage de feuilles sur cylindres de transfert pour machines à imprimer des feuilles

Country Status (4)

Country Link
EP (1) EP0508218B1 (fr)
JP (1) JPH0775883B2 (fr)
AT (1) ATE111807T1 (fr)
DE (2) DE4111262C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29918309U1 (de) * 1999-10-16 1999-12-23 Roland Man Druckmasch Umführtrommel für Bogendruckmaschinen
DE19950408A1 (de) * 1999-10-20 2001-05-03 Heidelberger Druckmasch Ag Bogenleiteinrichtung für Bedruckstoffbögen verarbeitende Maschinen
DE10157117A1 (de) * 2001-11-21 2003-05-28 Koenig & Bauer Ag Bogenausleger für eine bogenverarbeitende Maschine
DE10222060B4 (de) * 2002-05-17 2006-06-29 Koenig & Bauer Ag Bogenführungstrommel in einer Druckmaschine und Bogendruckmaschine
JP4928871B2 (ja) * 2006-08-22 2012-05-09 リョービ株式会社 枚葉印刷機の渡し胴
DE102015204113A1 (de) 2014-03-26 2015-10-01 Koenig & Bauer Ag Bogentransportvorrichtung für eine bogenverarbeitende Maschine und Verfahren zum Transportieren von Bogen von einem Bogenführungszylinder an ein Bogenfördersystem

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725705C (de) * 1941-01-25 1942-09-28 Willy Mailaender Rotationsgummidruckmaschine zum mehrfarbigen Bedrucken von Blechtafeln
DE2156577B2 (de) * 1971-11-15 1974-07-04 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorgreiferschwinganlage
US3791644A (en) * 1972-12-14 1974-02-12 H Demoore Sheet handling apparatus
DE2409220A1 (de) * 1974-02-27 1975-09-04 Maschf Augsburg Nuernberg Ag Mehrfarben-bogenrotationsdruckmaschine
DE2901017A1 (de) * 1979-01-12 1980-07-17 Friz Gmbh & Co Helmut Konusrollenbahn fuer eine kaschiermaschine
DE3307054A1 (de) * 1983-03-01 1984-09-06 Agfa-Gevaert Ag, 5090 Leverkusen Stabkettentransporteinrichtung in schrumpftunnel
DE3443704A1 (de) * 1984-11-30 1986-06-05 Roland Man Druckmasch Vorrichtung zum fuehren von ein- oder beidseitig bedruckten bogen
DD258400A1 (de) * 1987-03-16 1988-07-20 Polygraph Leipzig Leiteinrichtung fuer biegesteife materialien
JP2881445B2 (ja) * 1988-02-05 1999-04-12 プリンティング、リサーチ、インク 紙用ガイドローラー及びその製法

Also Published As

Publication number Publication date
EP0508218A1 (fr) 1992-10-14
JPH0596706A (ja) 1993-04-20
DE4111262C1 (fr) 1992-06-25
ATE111807T1 (de) 1994-10-15
JPH0775883B2 (ja) 1995-08-16
DE59200520D1 (de) 1994-10-27

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