EP0893251A2 - Machine d'impression comprenant un dispositif de mouillage - Google Patents

Machine d'impression comprenant un dispositif de mouillage Download PDF

Info

Publication number
EP0893251A2
EP0893251A2 EP98112248A EP98112248A EP0893251A2 EP 0893251 A2 EP0893251 A2 EP 0893251A2 EP 98112248 A EP98112248 A EP 98112248A EP 98112248 A EP98112248 A EP 98112248A EP 0893251 A2 EP0893251 A2 EP 0893251A2
Authority
EP
European Patent Office
Prior art keywords
roller
slip
dampening
printing unit
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.)
Granted
Application number
EP98112248A
Other languages
German (de)
English (en)
Other versions
EP0893251B1 (fr
EP0893251A3 (fr
Inventor
Charles Douglas Lyman
Daniel Paul Gagne
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 EP0893251A2 publication Critical patent/EP0893251A2/fr
Publication of EP0893251A3 publication Critical patent/EP0893251A3/fr
Application granted granted Critical
Publication of EP0893251B1 publication Critical patent/EP0893251B1/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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Definitions

  • the present invention relates to a printing press with a dampening system several slits having nips according to the preamble of Claim 1.
  • a slip gap i. H. a gap in which the Contact surfaces of the adjacent rollers are subject to slip in high-speed offset printing machines to apply a dampening solution to the To achieve printing unit rollers in the correct dosage.
  • Such as B. is shown in Fig. 1, comprises a printing system or a printing press 1st as is known, a dampening unit 2 and printing unit 3.
  • the dampening unit 2 has one Dipping roller 5, which receives dampening solution from a dampening solution reservoir 4.
  • a a slip roller 6, which is referred to below as a slip roller, is in contact with the dip roller 5, and both rollers, namely the dip roller 5 and the slip roller 6 are driven so that they are the same Rotate surface speed (i.e. the surface speed the rollers are identical).
  • Rotate surface speed i.e. the surface speed the rollers are identical
  • the printing unit 3 comprises a printing unit roller 7, the z. Legs Dampening roller or a bridge roller, which dampening solution on the Plate cylinder or on inking rollers of the printing unit can be transferred.
  • the Printing unit roller 7 is no closer via slip-free nips with subordinate shown rollers of the printing unit 3 brought into contact. Furthermore contacted the Printing unit roller 7, the slip roller 6 and thereby takes over from the slip roller 6 led dampening solution. Then the printing unit roller 7 transfers the dampening solution other elements of the printing unit 3.
  • the printing unit roller 7 is in the way driven to move at a higher surface speed than the slip roller 6 turns. This creates a slip gap 8 in the transition area between the Dampening unit 2 and the printing unit 3 created, via which the printing unit 3 Fountain solution is supplied.
  • a printing press has a dampening unit which comprises an immersion roller and a slip roller, both of which are in rolling contact with one another and rotate at a first surface speed V 1 .
  • a printing unit roller of the printing unit of the printing press rotates at a second surface speed V 2 , which is greater than the first surface speed V 1 .
  • a first intermediate roller which is in slip contact with the slip roller and the printing unit roller and rotates at a third surface speed V 3 which is higher than the first surface speed V 1 and lower than the second surface speed V 2 is.
  • the printing unit roller is preferably a dampening solution application roller, which transfers dampening solution to the plate cylinder of the printing unit.
  • it can also be a bridge roller known from the prior art, which transfers dampening solution from the dampening unit to one of the inking rollers of the printing unit.
  • the intermediate roller can either by a dampening system or by a Printing mechanism associated drive mechanism are driven, the necessary regulation of the peripheral speed of the intermediate roller by known geared drive method can take place.
  • the intermediate roller can z. B. are driven independently of the dampening unit and printing unit. It can too several, for example individually driven by appropriate motors Intermediate rolls are used.
  • the printing press 101 comprises a dampening unit 102 and a printing unit 103.
  • the dampening unit 102 comprises at least one dampening unit roller, e.g. B. a plunger roller 105 which receives dampening solution from a dampening solution reservoir 104 by z. B. partially immersed in the dampening solution reservoir 104.
  • the plunger roller 105 is driven by a conventional drive device (not shown) and rotates at a surface speed V damp which corresponds to the surface speed of the dampening unit.
  • the dampening unit 102 further comprises a slip roller 106 which contacts the immersion roller 105 in the gap 111.
  • the slip roller 106 is also driven at the surface speed V damp of the dampening unit 102, e.g. B. by the same drive device that drives the plunger roller 105, or by a separate drive device.
  • the printing unit 103 further comprises a printing unit roller 107, which further (not shown) elements of the printing unit 103, z. B. contacted a blanket cylinder, an inking roller, etc. of the printing unit in order to supply the dampening solution received from the dampening unit 102 to the printing unit 103.
  • the printing unit roller 107 is driven at a surface speed V press which corresponds to the surface speed of the printing unit, but which is higher than the surface speed V damp of the dampening unit 102.
  • An intermediate roller 108 is between the slip roller 106 and the Printing unit roller 107 arranged.
  • the intermediate roller 108 contacts the slip roller 106 and the printing unit roller 107 and thus forms a first slip gap 109 at the contact point of slip roller 106 and intermediate roller 108, and a second Slip nip 110 at the contact point of intermediate roller 108 and Printing unit roller 107.
  • the dampening solution is removed from the via the first slip gap 109 Slip roller 106 onto intermediate roller 108 and then across the second slip nip 110 transferred from the intermediate roller 108 to the printing unit roller 107.
  • the intermediate roller 108 is driven with an intermediate surface speed V intermed , which is higher than the surface speed V damp of the dampening unit and lower than the surface speed V press of the printing unit.
  • the intermediate roller 108 can be driven by selecting a reduction ratio of a gear mechanism 402 coupled to the intermediate roller 108 and the drive device 401 of the dampening unit 102 in such a way that the selected ratio of surface speed (V damp ) of the slip roller 106 to the surface speed (V intermed ) of the intermediate roller (108) is reached.
  • the intermediate roller 108 can be connected via the gear mechanism 402 to the drive device 403 of the printing unit 103, the reduction ratio preferably being selected such that the surface speed of the intermediate roller 108 (V intermed ) is a predetermined fraction of the surface speed V press of the printing unit is.
  • the intermediate roller 108 can, according to the example shown in Fig. 4c also by an independent drive device 404, z. B. driven by an independent motor with an independently controlled surface speed (V intermed ) in such a way that the desired speed is achieved relative to V damp and V press .
  • the speed ratio in the first slip gap (V intermed / V damp ) and the speed ratio in the second slip gap (V press / V intermed ) will always be lower than the speed ratio which can be achieved in a printing press with only a single slip gap ( V press / V damp ) exists.
  • the printing press 201 comprises a dampening unit 102 and a printing unit 103.
  • the intermediate roller 108 (FIG. B. by intermediate rollers 208A and 208B replaced.
  • the intermediate rolls 208A and 208B can be driven in such a way that they only rotate in the first slip gap 109 and in the second slip gap 110 at the same surface speeds as is the case in the first exemplary embodiment.
  • the intermediate rolls 208A and 208B can, however, also be driven in a third slip nip 211 with different surface speeds. This allows an additional reduction in the speed ratio for each slip nip in the printing press to be achieved without increasing V damp according to the principles mentioned above.
  • a third slip gap 211 can therefore be formed, in which the first intermediate roller 208A rotates at a first intermediate speed V intermed1 and the second intermediate roller 208B at a second intermediate speed V intermed2 .
  • any number of additional slip column can be formed to further increase the speed difference in each slip gap decrease while the difference between the speed of the dampening system and that of the printing unit is maintained or increased. This enables the Increase the speed of the printing unit without the speed of the Need to increase dampening accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP98112248A 1997-07-24 1998-07-02 Machine d'impression comprenant un dispositif de mouillage Expired - Lifetime EP0893251B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US899614 1997-07-24
US08/899,614 US5909707A (en) 1997-07-24 1997-07-24 High-speed printing system having multiple slipping nips

Publications (3)

Publication Number Publication Date
EP0893251A2 true EP0893251A2 (fr) 1999-01-27
EP0893251A3 EP0893251A3 (fr) 1999-06-16
EP0893251B1 EP0893251B1 (fr) 2002-04-10

Family

ID=25411292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112248A Expired - Lifetime EP0893251B1 (fr) 1997-07-24 1998-07-02 Machine d'impression comprenant un dispositif de mouillage

Country Status (4)

Country Link
US (1) US5909707A (fr)
EP (1) EP0893251B1 (fr)
JP (1) JPH1177954A (fr)
DE (2) DE59803697D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546860B1 (en) 1999-03-17 2003-04-15 Heidelberger Druckmaschinen Ag Dampening unit for a printing press
WO2004054804A1 (fr) 2002-12-13 2004-07-01 Koenig & Bauer Aktiengesellschaft Procede pour assurer la commande d'un premier rouleau prelevant un agent de mouillage dans une source d'agent de mouillage et celle d'un second rouleau, et dispositifs de mouillage
DE102004006231B3 (de) * 2004-02-09 2005-08-04 Koenig & Bauer Ag Verfahren zum Transportieren von Feuchtmittel von einer ersten Walze an die Oberfläche eines Formzylinders einer Druckmaschine
EP1561578A1 (fr) 2004-02-09 2005-08-10 Koenig & Bauer Aktiengesellschaft Procédé pour transférer l'eau de mouillage d'un premier rouleau vers la surface du cylindre porte-plaque d'une machine d'impression

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702409B1 (fr) * 1993-03-11 1995-05-05 Buchmann Optical Eng Machine à meuler les verres ophtalmiques comportant des moyens d'asservissement de la valeur de serrage de l'ébauche du verre à meuler.
DE102004031946B4 (de) * 2004-06-30 2021-03-18 Heidelberger Druckmaschinen Ag Verfahren zum Antreiben von Walzen eines Druckwerkes einer Druckmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1940661A1 (de) * 1969-08-09 1971-02-18 Roland Offsetmaschf Feuchteinrichtung fuer lithographische Druckmaschinen
EP0462490A1 (fr) * 1990-06-21 1991-12-27 Heidelberger Druckmaschinen Aktiengesellschaft Système de mouillage à film pour presse rotative
EP0478493A1 (fr) * 1990-09-11 1992-04-01 Sun Graphic Technologies, Inc. Système de mouillage d'une presse d'impression
US5471926A (en) * 1993-04-16 1995-12-05 Heidelberger Druckmaschinen Aktiengesellschaft Printing press and method of operating same
DE4447178A1 (de) * 1994-12-30 1996-07-04 Koenig & Bauer Albert Ag Feuchtwerk für eine Druckmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986452A (en) * 1960-05-02 1976-10-19 Dahlgren Manufacturing Company, Inc. Liquid applicator for lithographic systems
US3433155A (en) * 1965-09-13 1969-03-18 Harris Intertype Corp Mechanism for applying a coating to a plate
CH509156A (de) * 1969-08-09 1971-06-30 Roland Offsetmaschf Feuchteinrichtung für lithographische Druckmaschinen
GB1492962A (en) * 1974-02-19 1977-11-23 Alcan Res & Dev Method and apparatus for applying coating compositions to strip material
US3937141A (en) * 1974-06-17 1976-02-10 Dahlgren Harold P Dampener for lithographic printing plates

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1940661A1 (de) * 1969-08-09 1971-02-18 Roland Offsetmaschf Feuchteinrichtung fuer lithographische Druckmaschinen
EP0462490A1 (fr) * 1990-06-21 1991-12-27 Heidelberger Druckmaschinen Aktiengesellschaft Système de mouillage à film pour presse rotative
EP0478493A1 (fr) * 1990-09-11 1992-04-01 Sun Graphic Technologies, Inc. Système de mouillage d'une presse d'impression
US5471926A (en) * 1993-04-16 1995-12-05 Heidelberger Druckmaschinen Aktiengesellschaft Printing press and method of operating same
DE4447178A1 (de) * 1994-12-30 1996-07-04 Koenig & Bauer Albert Ag Feuchtwerk für eine Druckmaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546860B1 (en) 1999-03-17 2003-04-15 Heidelberger Druckmaschinen Ag Dampening unit for a printing press
WO2004054804A1 (fr) 2002-12-13 2004-07-01 Koenig & Bauer Aktiengesellschaft Procede pour assurer la commande d'un premier rouleau prelevant un agent de mouillage dans une source d'agent de mouillage et celle d'un second rouleau, et dispositifs de mouillage
EP1582348A2 (fr) 2002-12-13 2005-10-05 Koenig & Bauer Aktiengesellschaft Procédé pour assurer la commande d'un premier rouleau prélevant un agent de mouillage dans une source d'agent de mouillage et celle d'un second rouleau, et dispositifs de mouillage
DE10258326B4 (de) * 2002-12-13 2006-12-14 Koenig & Bauer Ag Verfahren zur Steuerung einer ein Feuchtmittel aus einem Feuchtmittelreservoir aufnehmenden ersten Walze und einer zweiten Walze
EP2072251A2 (fr) 2002-12-13 2009-06-24 Koenig & Bauer Aktiengesellschaft Mécanismes de mouillage
US8256344B2 (en) 2002-12-13 2012-09-04 Koenig & Bauer Aktiengesellschaft Methods for controlling both a first roll, which takes up a dampening agent from a dampening agent source, as well as a second roll, and dampening systems
DE102004006231B3 (de) * 2004-02-09 2005-08-04 Koenig & Bauer Ag Verfahren zum Transportieren von Feuchtmittel von einer ersten Walze an die Oberfläche eines Formzylinders einer Druckmaschine
EP1561578A1 (fr) 2004-02-09 2005-08-10 Koenig & Bauer Aktiengesellschaft Procédé pour transférer l'eau de mouillage d'un premier rouleau vers la surface du cylindre porte-plaque d'une machine d'impression

Also Published As

Publication number Publication date
EP0893251B1 (fr) 2002-04-10
EP0893251A3 (fr) 1999-06-16
DE19829601A1 (de) 1999-01-28
DE59803697D1 (de) 2002-05-16
US5909707A (en) 1999-06-08
JPH1177954A (ja) 1999-03-23

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