EP0973641A1 - Feuchtmittelwalze - Google Patents
FeuchtmittelwalzeInfo
- Publication number
- EP0973641A1 EP0973641A1 EP98928134A EP98928134A EP0973641A1 EP 0973641 A1 EP0973641 A1 EP 0973641A1 EP 98928134 A EP98928134 A EP 98928134A EP 98928134 A EP98928134 A EP 98928134A EP 0973641 A1 EP0973641 A1 EP 0973641A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dampening
- lze
- roller
- lwa
- drive ring
- 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
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N7/00—Shells for rollers of printing machines
- B41N7/04—Shells for rollers of printing machines for damping rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/02—Top layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds
Definitions
- the invention relates to a dampening medium Lwa Lze for a dampening unit of an offset rotation printing as chi ne according to the preamble of claims 1 and 5.
- a disadvantage of this drive is that both the rings of the abutment and the elastic coating of the driven dampening agent Lauf t ragwa lze consist of different materials.
- a further disadvantage is that the ring-shaped supports located at the ends of the P lattenzy have a larger diameter than the P Lattenzy linder due to the clamped pressure plates, and are made of a different material.
- US 51 91 835 A describes a dampening unit of a rotary printing press with four dampening rollers.
- One that works directly with the forme cylinder The dampening solution roller t ragwa lze is frictionally driven, while the dampening solution rollers upstream of this dampening agent roller t ragwa Lze are positively driven by means of gear wheels.
- the invention has for its object to a dampening medium Lwa lze
- the dampening agent lwa Lze has a uniform elastic coating over its entire surface, in which both sides can be inexpensively formed as a result of a "puncture". This means that no additional abutments are required.
- the dampening solution roller can be adjusted with its drive rings to any roller of the dampening unit provided with a hard surface and can be driven by it without additional supports being required for this.
- the dampening agent lwa Lze according to the invention is particularly advantageous to an iridescent, d. H. in the axial direction reciprocable driven damp rei bwa Lze adjustable.
- the drive rings have a damp-guiding profile. This is particularly useful when there is an iridescent chrome roller in the dampening solution path in front of the dampening agent roller.
- an even application of dampening solution over the width of the dampening agent is Moisturizing agent given.
- FIG. 1 shows a longitudinal section through the schematic representation of a dampening unit.
- FIG. 2 shows a detail "Z" according to FIG. 1 with the enlarged illustration of a drive ring arranged on the dampening solution roller;
- Fig. 3 shows a profiled support ring.
- a dampening unit 1 for a lattenzy L i nder 2 one
- Spray bar 3 which acts against a chrome roller 4, a dampening medium according to the invention, ragwa roller 6, an oscillating dampening roller 7 and a dampening agent application roller acting against the plate cylinder
- the spray bar 3 can be designed as a known spray nozzle system.
- the damp rei bwa lze 7 is by non-intent l lte means, z. B. a gear train from
- P lattenzy L i nde r 2 driven and can be made of chrome or
- Ceramics e.g. aluminum oxide or chromium oxide exist.
- Each dampening medium lwa 6; 8 has a rubber load i see Coating 9, e.g. B. a rubber jacket.
- the dampening agent lwa Lze 6; 8 has an effective bale length or working width of b11 + c (c eg 10 mm) compared to a maximum width b11 of a paper web 11.
- the working width te b11 + c is limited on both sides by annular grooves 13 located on the circumference 12 and introduced into the coating 9. Beyond the ring grooves 13 are ends 14; 16 of the dampening solution transfer roller 6 with a coating 9 of the same material having the same diameter e, e.g. B. rubber, the drive rings 17; 18 provided.
- the drive rings 17; 18 have a width d, z. B. of 30 mm each.
- the changeable damp rei bwa lze 7 has an effective working width b11 + c + f and has an axial stroke length f, z. B. of ⁇ 15 mm.
- the chrome roller 4 has a length that extends beyond the working width b11 + c on both sides by the amount d.
- the aforementioned cylinders and rollers 2; 4; 6; 7; 8 are tenste L Lf est stored, as is the spray bar 3rd
- the mode of operation of the dampening medium lwa Lze according to the invention is as follows:
- the spray bar 3 transfers the dampening solution to the chrome roller 4 over the working width b11 + c. It remains at both ends the chrome roller 4 in each case an area d beyond the working width b11 + c dry or provided with only a little moisture, so that the chrome roller 4 drives via the friction rings 16; 17 receives the dampening solution roller 6.
- Moisturizing medium ragwa Lze 6 receives 4 dampening solution from the chrome roller and passes it on to the changing damping bwa Lze 7.
- the drive of the dampening solution transfer roller 6 is frictionally through the two areas f of the damp rei bwa lze 7, which on the drive rings 17; 18 the dampening agent surprises ragwa 6 wi rken.
- dampening roller 7 delivers the rubbed dampening solution to the dampening medium bearing roller 8, which moistens the pressure plates of the plate cylinder 2.
- the dampening agent running t ragwa Lze 8 is driven by both the changing damp rei bwa lze 7 and the plate cylinder 2 by means of friction.
- the dampening solution roller 8 are none Drive rings 17; 18 needed.
- the chrome roller 4 can be driven and oscillated by means of a gear train from the flat plate cylinder 2 instead of the changing and driven dampening roller 7.
- the chrome roller 4 can be driven and oscillated by means of a gear train from the flat plate cylinder 2 instead of the changing and driven dampening roller 7.
- the drive rings 17; 18 can both for the frictional drive of the drive rings 17; 18 dampening solution roller can be used as well as to drive a directly interacting roller. It is also possible to have only one end 14; 16 to be provided with a drive ring. There is also the possibility, for example, of the chrome roller 4 with drive rings 17; 18 to be provided. These can, for example, see a rubber coating 9 on white.
- a humid lab leading profile 19 can, for. B. from on the jacket of the drive rings 17; 18 helical circumferential grooves 21, which the dampening solution in the direction of the ends of the dampening medium roller 6; 8 transport away.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19714222A DE19714222C1 (de) | 1997-04-07 | 1997-04-07 | Feuchtmittelwalze |
| DE19714222 | 1997-04-07 | ||
| PCT/DE1998/000958 WO1998045117A1 (de) | 1997-04-07 | 1998-04-03 | Feuchtmittelwalze |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0973641A1 true EP0973641A1 (de) | 2000-01-26 |
| EP0973641B1 EP0973641B1 (de) | 2001-11-07 |
| EP0973641B2 EP0973641B2 (de) | 2006-09-20 |
Family
ID=7825634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98928134A Expired - Lifetime EP0973641B2 (de) | 1997-04-07 | 1998-04-03 | Feuchtmittelwalze |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6293191B1 (de) |
| EP (1) | EP0973641B2 (de) |
| JP (1) | JP3204990B2 (de) |
| DE (2) | DE19714222C1 (de) |
| WO (1) | WO1998045117A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004039821A1 (de) * | 2004-08-17 | 2006-02-23 | Man Roland Druckmaschinen Ag | Druckeinheit sowie Feuchtwerk |
| WO2006072557A1 (de) * | 2005-01-05 | 2006-07-13 | Koenig & Bauer Aktiengesellschaft | Druckeinheit einer druckmaschine mit mindestens einem farbwerk und mindestens einem feuchtwerk |
| US20080289520A1 (en) * | 2007-05-21 | 2008-11-27 | Aldo Perrone | Printing roller apparatus and method |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2126768A (en) * | 1938-01-20 | 1938-08-16 | John G Goedike | Dampening system for lithographic and analogous presses |
| DK62913C (da) * | 1941-09-27 | 1944-11-20 | Carl Ejner Larsen | Fugteværk til Offsettrykkemaskiner og til andre Trykkemaskiner med Fugtighedstilførsel. |
| US3296964A (en) * | 1964-04-09 | 1967-01-10 | Roberts & Porter Inc | Dampening roller mechanism for offset printing presses |
| DE1761245B1 (de) * | 1968-04-24 | 1971-02-04 | Web Offset Publications Corp | Feuchtwerk fuer Rotationsoffsetdruckmaschinen |
| DE2007554B1 (de) * | 1970-02-19 | 1971-08-26 | Maschinenfabrik Augsburg Nürnberg AG, 8900 Augsburg | Alkoholfeuchtwerk für Offsetdruckma schinen |
| DE2634555C3 (de) * | 1976-07-31 | 1979-08-30 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Sprühfeuchtwerk mit einer zum Abschleudern von Feuchtflüssigkeit vorgesehene Rippen aufweisenden Schleuderwalze |
| FR2513181B1 (fr) * | 1981-09-23 | 1985-10-04 | Laborie Fernand | Dispositif regulateur de mouillage a prise d'eau en continu pour machine lithographique du type offset |
| US4864704A (en) * | 1988-04-06 | 1989-09-12 | Day International Corporation | Interlocking rubber-jacketed end cap and a rubber-covered roll |
| US4967663A (en) * | 1988-10-24 | 1990-11-06 | Coors Porcelain Company | Unengraved metering roll of porous ceramic |
| US5033376A (en) | 1989-12-29 | 1991-07-23 | Am International, Inc. | Segmented moisture fountain roller assembly for printing or duplicating machines |
| FR2663588B1 (fr) * | 1990-06-21 | 1992-10-09 | Marinoni Harris Sa | Systeme de mouillage a film pour presse offset rotative. |
| US5222434A (en) | 1990-07-26 | 1993-06-29 | Petco, Inc. | Soft rollers for ink and water feeding rollers used in off-set printing presses |
| US5329850A (en) * | 1992-07-10 | 1994-07-19 | Eduardo Duarte | Metering roller for a lithographic printing press |
| TW298574B (de) * | 1994-03-08 | 1997-02-21 | Syfal Srl | |
| DE4447178A1 (de) * | 1994-12-30 | 1996-07-04 | Koenig & Bauer Albert Ag | Feuchtwerk für eine Druckmaschine |
| US5961685A (en) * | 1997-03-14 | 1999-10-05 | Owens Corning Fiberglass Technology, Inc. | Apparatus for applying a generally uniform sizing composition to glass fibers |
| US6062138A (en) * | 1999-03-30 | 2000-05-16 | Howard A. Fromson | Offset printing having blanket cylinder with blanket having different thicknesses |
-
1997
- 1997-04-07 DE DE19714222A patent/DE19714222C1/de not_active Expired - Fee Related
-
1998
- 1998-04-03 JP JP54224398A patent/JP3204990B2/ja not_active Expired - Fee Related
- 1998-04-03 WO PCT/DE1998/000958 patent/WO1998045117A1/de not_active Ceased
- 1998-04-03 DE DE59802064T patent/DE59802064D1/de not_active Expired - Lifetime
- 1998-04-03 EP EP98928134A patent/EP0973641B2/de not_active Expired - Lifetime
-
1999
- 1999-10-06 US US09/402,444 patent/US6293191B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9845117A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0973641B1 (de) | 2001-11-07 |
| EP0973641B2 (de) | 2006-09-20 |
| JP3204990B2 (ja) | 2001-09-04 |
| DE19714222C1 (de) | 1998-04-16 |
| US6293191B1 (en) | 2001-09-25 |
| JP2000510069A (ja) | 2000-08-08 |
| DE59802064D1 (de) | 2001-12-13 |
| WO1998045117A1 (de) | 1998-10-15 |
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