EP0275882B1 - Fördervorrichtung für eine Bogenrotationsdruckmaschine - Google Patents

Fördervorrichtung für eine Bogenrotationsdruckmaschine Download PDF

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Publication number
EP0275882B1
EP0275882B1 EP88100155A EP88100155A EP0275882B1 EP 0275882 B1 EP0275882 B1 EP 0275882B1 EP 88100155 A EP88100155 A EP 88100155A EP 88100155 A EP88100155 A EP 88100155A EP 0275882 B1 EP0275882 B1 EP 0275882B1
Authority
EP
European Patent Office
Prior art keywords
sheet
displacer
gripper
drum
conveying device
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 - Lifetime
Application number
EP88100155A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0275882A3 (en
EP0275882A2 (de
Inventor
Marco Bergmann
Herbert Rebel
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT88100155T priority Critical patent/ATE70495T1/de
Publication of EP0275882A2 publication Critical patent/EP0275882A2/de
Publication of EP0275882A3 publication Critical patent/EP0275882A3/de
Application granted granted Critical
Publication of EP0275882B1 publication Critical patent/EP0275882B1/de
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
    • 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
    • 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 conveyor device for a sheet-fed rotary printing machine according to the preamble of the first claim.
  • a conveyor device with these features has become known from DE-PS 2 111 049.
  • the gripper supports of the gripper systems usually protrude beyond the pitch circle diameter of the deflection chain wheels.
  • they run on a radius which is approximately equal to the radius of the gripper pads of the grippers of the printing press cylinder. If the transport chains run off the deflection sprockets and continue in a straight line, the speed of the gripper pads reduces to the speed of the transport chains.
  • the rear end of the sheet has not yet left the printing press cylinder in the case of larger formats and is accordingly moved forward faster than the sheet beginning is pulled off.
  • the bow loses its tension and can form waves that lead to an increased risk of lubrication.
  • the sheet is carried along on the rubber cylinder until it is torn off. This can lead to permanent deformation of the arch.
  • the disadvantage here is that the sheet displacer lubricates the sheet and in particular does not act immediately after the sheet has been transferred to the gripper systems.
  • the front edge of the take-off drum or the support disks will smear due to the kinking of the tangent.
  • the beginning of the bow gives way especially in the case of a large drum channel, to a certain extent in the non-load-bearing area of the take-up drum, before it can be displaced by the arc displacer that can be controlled radially between two support disks of the take-up drum.
  • This means that the known tension of the sheet on the rubber blanket of the blanket cylinder preventing tension can not be generated from the beginning of the handover by a sheet displacer that can be controlled centrally on the take-up drum between two support disks.
  • blowing air device In chain transfer systems, it is also important to support the sheet after the transport chains have left the chain radius of the take-up drum in order to ensure flutter-free sheet travel into the next printing unit or for sheet delivery. Another disadvantage is that the blowing air device requires a high level of ventilation and control effort.
  • the invention is therefore based on the object in a conveyor device of the type mentioned by a mechanical sheet displacer the printed sheet with reduced risk of smearing immediately after transfer from the pressure cylinder to the gripper systems from the beginning of the sheet with sufficient tension until the loosening of the gripper closure of the rotating transport chains to guide arranged gripper systems, d. i.e. until the next transfer or delivery of the sheet with the chain transfer system.
  • the sheet is removed in a known manner from a printing cylinder 1 by means of gripper systems 4, 19 provided on rotating transport chains, not shown, and is guided around a removal drum 2.
  • the gripper systems 4, 19 have gripper supports 4 and 19, which are connected to the transport chains in a gripper carriage 15 on a gripper support spindle 10 and a gripper shaft 11 (FIG. 3).
  • the take-off drum 2 carries two deflection sprockets, not shown, over which the transport chains run.
  • each printing unit has, in a known manner, rubber and plate cylinders.
  • this is done in that the tension in the sheet is maintained from the start of the transfer of the sheet 5 from the impression cylinder 1 to the gripper systems 4, 19.
  • the space covered by the printed sheet 5 between the gripper systems 4, 19 arranged on the circulating transport chains and an opposite supporting surface of the take-up drum 2 becomes fixed or radial immediately after the sheet 5 is transferred to the gripper systems 4, 19 by one on the gripper systems 4, 19 bridged adjustable or out of the chain radius arch displacer 3 bridged, the curved support surface has approximately the radius of the supporting surfaces of the drum shell of the take-up drum 2.
  • the arc displacer 3 can be full-surface or recessed and axially adjustable.
  • the radial adjustment option allows to compensate for a small path error during the running of the sheet 5, which results from the radial difference between the gripper pad 4 and the diameter of the supporting surfaces of the take-off drum 2, if the gripper pad 4 is processed over the radius of the thin sheet 5 bearing surfaces of the drum shell of the take-off drum 2 is also set.
  • control rollers 7 are arranged on both sides of the shaft of the take-up drum, which run on curves 12 under spring force 8.
  • the control rollers 7 are attached to both ends of a cross member 17, which the bow displacer 3rd or carries a controllable sheet displacement comb 6 at one end.
  • the bow displacement comb 6 or the bow displacer 3 is pivotally connected at the other end to the gripper systems 4, 19 in order to pivot them out of the chain radius of the deflection sprockets or after the bow end has left the pressure zone.
  • the curved support surfaces of the sheet displacer 3 either as a controllable sheet displacement comb 6 or as a radially adjustable sheet displacement comb 16 and the cooperating bearing surfaces of the drum shell of the take-up drum 2 interlocking as a sheet carrier comb 13.
  • the comb arrangement prevents the surfaces of the sheet displacer 3 fastened to the rotating gripper systems 4, 19 and the surfaces fastened to the rotating take-up drum 2 when the gripper systems 4, 19 enter the area of the take-up drum 2 or collide when leaving the take-up drum 2 due to the relative speeds present.
  • elements 18, for. B. rolls are provided in the curved support surface of the sheet displacer 3 or the sheet displacement comb 6, 16 and / or the load-bearing surfaces of the drum shell of the take-up drum 2 or the sheet support comb 13, elements 18, for. B. rolls are provided.
  • all known comparable elements can be used to prevent lubrication, such as. B. sheet guide rings, special surface coatings, knobs, covering with Super Blue, glass beads or other lifts. The additional use of blown air or the like would also be conceivable, but is not absolutely necessary.
  • the beginning of the arc of the arch 5 lies more snugly against the curved support surface of the arch displacer 3 or the arch displacer combs 6, 16, so that a lubrication-free and flutter-free arch guide until the release of the gripper in the following printing unit or the sheet delivery is guaranteed.
  • the advantages of the solution according to the invention are that in a very simple and inexpensive embodiment after the sheet 5 has been transferred to the gripper systems 4, 19 of the transport chains, a uniform pull can always be maintained by displacement of the sheet from the beginning of the sheet, as a result of which no lubrication of the front drum edge occurs fear.
  • This pull can also be maintained by steering the bend displacer out of the chain radius if the beginning of the bend already runs slowly on a straight path from the deflection sprockets and the end of the bend is still in the Pressure zone moves faster.

Landscapes

  • Discharge By Other Means (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP88100155A 1987-01-22 1988-01-08 Fördervorrichtung für eine Bogenrotationsdruckmaschine Expired - Lifetime EP0275882B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100155T ATE70495T1 (de) 1987-01-22 1988-01-08 Foerdervorrichtung fuer eine bogenrotationsdruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701767 DE3701767A1 (de) 1987-01-22 1987-01-22 Foerdervorrichtung fuer eine bogenrotationsdruckmaschine
DE3701767 1987-01-22

Publications (3)

Publication Number Publication Date
EP0275882A2 EP0275882A2 (de) 1988-07-27
EP0275882A3 EP0275882A3 (en) 1989-12-13
EP0275882B1 true EP0275882B1 (de) 1991-12-18

Family

ID=6319298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100155A Expired - Lifetime EP0275882B1 (de) 1987-01-22 1988-01-08 Fördervorrichtung für eine Bogenrotationsdruckmaschine

Country Status (5)

Country Link
US (1) US4858910A (enrdf_load_stackoverflow)
EP (1) EP0275882B1 (enrdf_load_stackoverflow)
JP (1) JPH0659732B2 (enrdf_load_stackoverflow)
AT (1) ATE70495T1 (enrdf_load_stackoverflow)
DE (2) DE3701767A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930747A1 (de) * 1989-09-14 1991-03-28 Roland Man Druckmasch Bogenfuehrungstrommel in rotationsdruckmaschinen
DE4434624C2 (de) * 1994-09-28 1997-11-20 Heidelberger Druckmasch Ag Vorrichtung zur Passerkorrektur und zum Ausgleich verspannter Bogen im Anleger einer Bogenrotationsdruckmaschine
DE19611124B4 (de) * 1996-03-21 2012-07-26 Heidelberger Druckmaschinen Ag Bogenübertragungseinrichtung einer Bogenrotationsdruckmaschine
DE10102226A1 (de) * 2001-01-19 2002-07-25 Heidelberger Druckmasch Ag Bogentransporttrommel
DE10157117A1 (de) * 2001-11-21 2003-05-28 Koenig & Bauer Ag Bogenausleger für eine bogenverarbeitende Maschine
US20090035046A1 (en) * 2007-07-31 2009-02-05 Belbey Jason S Print drum
DE102007061556B4 (de) * 2007-12-18 2011-06-09 Kba-Metronic Aktiengesellschaft Transportzylinder, mit beweglicher Greifervorrichtung und Verfahren zum Transportieren von Bögen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2111049A1 (de) * 1971-03-09 1972-09-21 Koenig & Bauer Schnellpressfab Kettenausleger fuer Bogendruckmaschinen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD76684A (enrdf_load_stackoverflow) *
US3334897A (en) * 1965-05-25 1967-08-08 Richard E Sharkey Method and apparatus for controlling curvature in printed sheets being withdrawn from an impression cylinder
DE2017417B2 (de) * 1970-04-11 1972-07-20 Maschf Augsburg Nuernberg Ag Bogenübergabetrommel an Bogenrotationsoffsetdruckmaschinen
US4202268A (en) * 1973-11-22 1980-05-13 Heidelberger Druckmaschinen Aktiengesellschaft Transfer drum for printing presses with devices for gripping the leading and trailing edges of a sheet which is being imprinted
SE7701468L (sv) * 1976-02-18 1977-08-19 Maschf Augsburg Nuernberg Ag Bojstyv griparvagn, serskilt avsedd for offsettryckmaskiner
DE2724621A1 (de) * 1977-06-01 1978-12-14 Maschf Augsburg Nuernberg Ag Bogenwendevorrichtung einer bogen- rotations-druckmaschine in reihenbauart
DE3036790C2 (de) * 1980-09-30 1982-11-11 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenübergabetrommel für auf Schön- und Widerdruck umstellbare Bogenrotationsdruckmaschinen
DE3114581C2 (de) * 1981-04-10 1984-01-19 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Fördervorrichtung für eine Bogen-Rotationsdruckmaschine
DE3447596A1 (de) * 1984-12-28 1986-07-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenuebertragungszylinder fuer bogenrotationsdruckmaschinen
DE3508699A1 (de) * 1985-03-12 1986-09-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Hoehenverstellbare greiferauflagen fuer wendetrommelgreifer in wendetrommeln von schoen- und widerdruckmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2111049A1 (de) * 1971-03-09 1972-09-21 Koenig & Bauer Schnellpressfab Kettenausleger fuer Bogendruckmaschinen

Also Published As

Publication number Publication date
JPS63193839A (ja) 1988-08-11
EP0275882A3 (en) 1989-12-13
JPH0659732B2 (ja) 1994-08-10
US4858910A (en) 1989-08-22
EP0275882A2 (de) 1988-07-27
DE3701767A1 (de) 1988-08-04
DE3701767C2 (enrdf_load_stackoverflow) 1989-01-05
DE3866881D1 (enrdf_load_stackoverflow) 1992-01-30
ATE70495T1 (de) 1992-01-15

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