EP1698463B1 - Dispositif de mouillage pour une unité d'impression offset d'une machine d'impression - Google Patents
Dispositif de mouillage pour une unité d'impression offset d'une machine d'impression Download PDFInfo
- Publication number
- EP1698463B1 EP1698463B1 EP20060003294 EP06003294A EP1698463B1 EP 1698463 B1 EP1698463 B1 EP 1698463B1 EP 20060003294 EP20060003294 EP 20060003294 EP 06003294 A EP06003294 A EP 06003294A EP 1698463 B1 EP1698463 B1 EP 1698463B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dampening
- roller
- contact
- unit according
- rider
- 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.)
- Not-in-force
Links
- 238000007639 printing Methods 0.000 title claims description 12
- 238000007645 offset printing Methods 0.000 title claims description 7
- 238000013016 damping Methods 0.000 title 1
- 238000007598 dipping method Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 239000004909 Moisturizer Substances 0.000 description 4
- 230000001333 moisturizer Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
Images
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
-
- 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 invention relates to a dampening unit with an offset printing unit of a printing machine, wherein the offset printing unit comprises an inking unit and a plate cylinder carrying a printing plate with associated blanket cylinder, according to the preamble of claim 1.
- a dampening unit of this kind is out DE 30 16 366 A1 which comprises a drivable moisturizer immersed in a fountain solution container and a dampening applicator roller directly in contact with the dampening ductor.
- the dampening roller is further engageable with a plate cylinder carrying a printing plate.
- a hydrophobic distribution cylinder which is in contact with the dampening applicator roll and which compares the dampening residue profile in the direction of rotation of the dampening applicator roll is arranged after the point of contact with the plate cylinder as a rider roll.
- the dampening form roller is a single arranged metering roll, in the direction of rotation of the dampening form roller before the contact point with the plate cylinder, adjustable.
- a dampening unit essentially consists of a feeder for the dampening solution, a device for metering the dampening solution film and an applicator roller which transmits the dampening solution film to a plate cylinder carrying the printing plate and coupled to the adjacent inking unit or can also be operated separately.
- the dampening roller can have a different peripheral speed to the plate cylinder, so that, for example, foreign particles eliminating wiping effect arises.
- a disadvantage of these embodiments is that the ink accumulating on the dampening roller is fed into the dampening unit and thus the color / dampening solution balance is impaired. These impairments show up in the form of stenciling or kordst Shape (streaks).
- EP-A-1 561 578 a method for transporting dampening solution is known, wherein the dampening solution is fed via three juxtaposed rollers a form cylinder of a printing press. The first and second rollers are coupled to a separate drive.
- WO 2004/054804 A describes a dampening unit with a fountain solution from a reservoir receiving a first roller and a second roller, which are part of a compactor.
- the first and the second roller have separate drives, wherein the two rollers differ in their surface speeds on the drive side.
- EP-A-0 764 524 is a short inking unit for an offset printing machine known. In the direction of rotation of the forme cylinder, this is preceded by a dampening unit. The structure of the dampening unit is not described in detail. In the drawings, only a dampening roller and a further upstream roller are visible, the latter roller is adjacent to another component.
- a dampening unit is known with a rolling on the forme dampening form roller, which is arranged upstream of a transfer roller.
- the transfer roller is in operative connection with a dampening agent metering device. Between the dampening roller and the transfer roller two parallel arranged and standing in direct contact with two rollers bridge rollers are arranged.
- Another dampening unit is out DE 36 44 982 A which comprises a feed strand for dampening solution, formed by a drivable moisturizer immersed in the dampening solution container and a dampening applicator roll which can be brought into direct contact with the dampening roller and the plate cylinder.
- the dampening roller is directly a bridge roller to the inking and below the dampening roller arranged a dampening.
- a dampening system which comprises a dampening solution container with a dampening duct, a transfer roller and a dampening roller.
- the dampening roller can be brought into contact with the plate cylinder or a bridge roller.
- a drive device is coupled to the dampening duct and the transfer roller.
- a drive of a dampening unit is off DE 39 23 350 C1 known.
- the dampening unit comprises a feed strand for dampening solution, formed by a dampening roller immersed in a storage container and a dampening applicator roller directly contacting the dampening roller and the plate cylinder.
- the dampening roller is assigned a metering roller.
- the toothed wheel drive causing the circumferential slipping is separated or separated around the axis of the dampening duct by means of separating or restoring the tooth engagement of two idler gears by pivoting a lever carrying the dosing roller and an intermediate gear engageable.
- the object of the invention is to provide a dampening unit of the type mentioned, which noticeably improves the print quality by a more uniform, trouble-free dampening solution to the plate cylinder.
- the problem is solved by the training features of claim 1. Further developments will become apparent from the dependent claims.
- An advantage of the invention is that in a dampening unit - starting from a feed strand formed at least from dampening ductor and a dampening form roller in contact with it - the dampening solution supply from the dampening ductor to the dampening form roller can be realized via at least one second feed strand formed from rolls.
- a third feed strand formed from rolls can realize the dampening solution feed from the dampening roller to the dampening form roller.
- Another advantage is given by the fact that with the formation of the present invention, a reduction of dampening solution excess due to the channel passage of the plate cylinder on the dampening form roller achievable and a more uniform, the print quality improving dampening solution distribution on the dampening form roller can be realized. Furthermore, stenciling (defects in which the print subject splits one or more times on the dampening form roller) and / or streaking (cord strip) on the dampening form roller is counteracted.
- a further advantage is that the dampening unit according to the invention reduces the speed of the dampening duct and also reduces the use of alcohol.
- the roller arrangement ensures a rapid achievement of the color / dampening solution balance when producing a very thin wet film.
- at least the second feed strand may additionally be assigned a metering roll which is in contact with the moisturizer.
- An offset printing unit of a printing press comprises at least one plate cylinder 1 carrying a printing plate and a blanket cylinder 2, the plate cylinder 1 being in operative connection with an inking unit 3 and a dampening unit 4.
- the inking unit 3 associated with the plate cylinder 1 consists of a plurality of inking rollers 11, which are connected to ink-feeding rollers (not shown).
- the dampening unit 4 is - viewed in the direction of rotation of the plate cylinder 1 - upstream of the inking unit 3 and consists in the present example of a fountain solution 8, a dipping into the fountain solution 8, rotatably drivable Feuchtduktor 6, if necessary, a Feuchtduktor 6 in contact associated metering roller 7 and a dampening roller 5.
- Feuchtduktor 6 and dampening roller 5 are in contact and form a first Zuzhoustrang for dampening solution to the plate cylinder 1, wherein the dampening form roller 5 can be brought into contact with the plate cylinder 1 in a contact point 15.
- the dampening duct 6 is coupled to an axially distributing traversing drive.
- the dampening roller 5 is in the direction of rotation after the contact point 15 associated with a bridge roller 12 brought into contact, which can be brought into contact with the first in the direction of rotation of the plate cylinder 1 inking roller 11 of the inking unit 3.
- the dampening unit 4 comprises a further supply line for fountain solution, which consists of with the dampening roller 6 and the dampening roller 5 in contact rollers (first transfer roller 10 and first rider roller 9 or second Transfer roller 14 and second rider roller 13).
- first rider roller 9 is formed.
- the dampening duct 6 is driven separately rotatably.
- the dampening duct 6 is coupled to an axially traversing traversing drive.
- the dampening roller 5 is drivable by means of a separate, controllable drive or with a machine drive, for example coupled to the plate cylinder 1.
- the rotational drive of the dampening form roller 5 can be made non-positively.
- the first rider roll 9 is coupled to a rotary drive and / or an axially traversing traverse drive.
- the first rider roll 9 with the same or unequal peripheral speed to the dampening form roller 5 is operable.
- the rotational drive of the first rider roller 9 can be made non-positively.
- the first transfer roller 10 is coupled to a rotary drive and / or an axially distributing traversing drive.
- the first transfer roller 10 with the same or unequal peripheral speed to the dampening duct 6 operable.
- the second rider roll 13 is coupled to a rotary drive and / or an axially distributing traversing drive.
- the second rider roll 13 with the same or unequal peripheral speed to the dampening form roller 5 is operable.
- the rotational drive of the second rider roll 13 can be made non-positively.
- the second transfer roller 14 is coupled to a rotary drive and / or an axially distributing traversing drive.
- the second transfer roller 14 with the same or unequal peripheral speed to the dampening duct 6 is operable.
- the surface of the dampening form roller 5 is preferably made of a fountain solution friendly rubber material, including a compressible rubber material.
- the surface of the rider rolls 9, 13 may be designed friendly for dampening solution or printing ink. Possible materials are polyamide, stainless steel, chrome surfaces, ceramics.
- the mode of action of the dampening unit 4 is as follows: In the printing operation, dampening solution is drawn from the dampening solution container 8 in a known manner by the dampening ductor 6 and transferred to the dampening applicator roll 5 in the contact point. From the dampening roller 5 of the dampening solution film is transferred in the contact point 15 to the plate cylinder 1 and the printing plate. If necessary, the moisturizer 6 is associated with a metering roller 7 in contact, which meters the fountain solution located on the dampening 6 in the contact point. Preferably, the metering roller 7 is in its axial position to the axis of the dampening duct 6 from an axially parallel position in an obliquely adjustable position and back adjustable, i.
- the relative position of the axis of the metering roller 7 is the axis position of the dampening ductor 6 cutting or axially adjustable.
- This obliquely adjustable axial position of the metering roller 7 improves the metering result, in particular for a metering roller 7 for larger format widths.
- the axial position of the metering roller 7 can be arranged generally obliquely to the axis of the Feuchtduktors 6.
- the additional feed strand consists of a combination, namely the first transfer roller 10 in contact with the dampening roller 6 and the first rider roller 9 in contact with the first transfer roller 10 and the dampening applicator roller 5 and the second roller in contact with the dampening roller 6 Transfer roller 14 and arranged with the second transfer roller 14 and the dampening roller 5 in contact second rider roller 13.
- the dampening roller 5 is thus supplied via an additional Zuriosstrang or according to the
- a separation can take place in the contact point of dampening roller 5 and dampening ductor 6.
- the first transfer roller 10 and - in the presence - the second transfer roller 14 to the dampening duct 6 arranged separable.
- the first rider roll 9, the first transfer roll 10, the second rider roll 13 and the second transfer roll 14 are arranged individually or in pairs to the dampening form roller 5 and to the dampening duct 6 at // ab sensible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Claims (16)
- Unité de mouillage (4), comportant une unité d'impression offset, d'une machine d'impression, l'unité d'impression offset englobant une unité d'encrage (3) et un cylindre porte-plaque (1) supportant un cliché d'impression avec un cylindre porte-blanchet associé (2) et l'unité de mouillage (4) présentant une ligne d'acheminement pour de l'agent mouillant, constituée par une racle de mouillage (6) trempant dans un réservoir d'agent de mouillage (8) et pouvant être entraînée en rotation et un cylindre applicateur d'humidité (5) pouvant être amené en contact direct avec la racle de mouillage (6) et le cylindre porte-plaque (1), caractérisée en ce que
l'unité de mouillage (4) englobe une ligne d'acheminement supplémentaire d'agent de mouillage en contact avec la racle de mouillage (6) et avec le cylindre applicateur d'humidité (5) et constituée de cylindres (10, 9 ou 14, 13). - Unité de mouillage selon la revendication 1, caractérisée en ce que la ligne d'acheminement supplémentaire est constituée d'un premier cylindre de transfert (10) en contact avec la racle de mouillage (6) et d'un premier chargeur baladeur (9) en contact avec le premier cylindre de transfert (10) et le cylindre applicateur d'humidité (5) et disposé dans le sens de rotation du cylindre applicateur d'humidité (5) après un point de contact (15) entre le cylindre porte-plaque (1) et le cylindre applicateur d'humidité (5).
- Unité de mouillage selon la revendication 1, caractérisée en ce que la ligne d'acheminement supplémentaire est constituée d'un second cylindre de transfert (14) en contact avec la racle de mouillage (6) et d'un second chargeur baladeur (13) en contact avec le second cylindre de transfert (14) et le cylindre applicateur d'humidité (5) et disposé dans le sens de rotation du cylindre applicateur d'humidité (5) avant un point de contact (15) entre le cylindre porte-plaque (1) et le cylindre applicateur d'humidité (5).
- Unité de mouillage selon la revendication 1, caractérisée en ce que la ligne d'acheminement supplémentaire est constituée d'un premier cylindre de transfert (10) en contact avec la racle de mouillage (6) et d'un premier chargeur baladeur (9) en contact avec le premier cylindre de transfert (10) et le cylindre applicateur d'humidité (5) et disposé dans le sens de rotation du cylindre applicateur d'humidité (5) après un point de contact (15) entre le cylindre porte-plaque (1) et le cylindre applicateur d'humidité (5) et d'un second chargeur baladeur (13) en contact avec la racle de mouillage (6) et d'un second chargeur baladeur (13) en contact avec le second cylindre de transfert (14) et le cylindre applicateur d'humidité (5) et disposé dans le sens de rotation du cylindre applicateur d'humidité (5) avant un point de contact (15) entre le cylindre porte-plaque (1) et le cylindre applicateur d'humidité (5).
- Unité de mouillage selon une des revendications précédentes, caractérisée en ce que la racle de mouillage (6) est couplée à une commande d'alternance à distribution axiale.
- Unité de mouillage selon une des revendications précédentes, caractérisée en ce qu'un cylindre doseur (7) en contact est associé à la racle de mouillage (6).
- Unité de mouillage selon les revendications 1 et 2, caractérisée en ce que le premier chargeur baladeur (9) est couplé à une commande rotative et/ou une commande d'alternance à distribution axiale.
- Unité de mouillage selon les revendications 1, 2 et 7, caractérisée en ce que le premier chargeur baladeur (9) présente des vitesses circonférentielles égales ou différentes par rapport au cylindre applicateur d'humidité (5).
- Unité de mouillage selon les revendications 1 et 2, caractérisée en ce que le premier cylindre de transfert (10) est couplé à une commande rotative et/ou une commande d'alternance à distribution axiale.
- Unité de mouillage selon les revendications 1, 2 et 9, caractérisée en ce que le premier cylindre de transfert (10) présente des vitesses circonférentielles égales ou différentes par rapport à la racle de mouillage (6).
- Unité de mouillage selon les revendications 1 et 3, caractérisée en ce que le second chargeur baladeur (13) est couplé à une commande rotative et/ou à une commande d'alternance à distribution axiale.
- Unité de mouillage selon les revendications 1, 3 et 11, caractérisée en ce que le second chargeur baladeur (13) présente des vitesses circonférentielles égales ou différentes par rapport au cylindre applicateur d'humidité (5).
- Unité de mouillage selon les revendications 1 et 3, caractérisée en ce que le second cylindre de transfert (14) est couplé à une commande rotative et/ou à une commande d'alternance à distribution axiale.
- Unité de mouillage selon les revendications 1, 3 et 13, caractérisée en ce que le second cylindre de transfert (14) présente des vitesses circonférentielles égales ou différentes par rapport à la racle de mouillage (6).
- Unité de mouillage selon les revendications 1 et 6, caractérisée en ce que la position relative de l'axe du cylindre doseur (7) par rapport à l'axe de la racle de mouillage (6) est réglable d'une position parallèle à l'axe à une position réglable obliquement et retour.
- Unité de mouillage selon les revendications 1 et 6, caractérisée en ce que la position de l'axe du cylindre doseur (7) est disposée obliquement par rapport à l'axe de la racle de mouillage (6).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510009681 DE102005009681A1 (de) | 2005-03-03 | 2005-03-03 | Feuchtwerk für eine Offsetdruckeinheit einer Druckmaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1698463A2 EP1698463A2 (fr) | 2006-09-06 |
| EP1698463A3 EP1698463A3 (fr) | 2007-06-27 |
| EP1698463B1 true EP1698463B1 (fr) | 2012-11-21 |
Family
ID=36655011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20060003294 Not-in-force EP1698463B1 (fr) | 2005-03-03 | 2006-02-17 | Dispositif de mouillage pour une unité d'impression offset d'une machine d'impression |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1698463B1 (fr) |
| JP (1) | JP2006240299A (fr) |
| DE (1) | DE102005009681A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5058070B2 (ja) * | 2008-05-21 | 2012-10-24 | アキヤマインターナショナル株式会社 | 枚葉オフセット印刷機の給水装置 |
| JP7287340B2 (ja) * | 2020-04-30 | 2023-06-06 | トヨタ自動車株式会社 | 情報処理装置、制御装置、車両、及び散水方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD144155B1 (de) | 1979-06-06 | 1988-04-27 | Hans Johne | Feuchtwerk fuer rotations-offsetdruckmaschinen |
| JPS59212268A (ja) | 1983-05-11 | 1984-12-01 | ボ−ルドウイン・テクノロジイ・コ−ポレイシヨン | 平版印刷機における給湿装置及び方法 |
| US4724764B1 (en) | 1983-05-11 | 1994-09-20 | Baldwin Technology Corp | Dampening system |
| GB2151186B (en) | 1983-12-12 | 1987-09-09 | Baldwin Technology Corp | Dampening system |
| DE3644982A1 (de) * | 1986-07-12 | 1988-11-03 | Miller Johannisberg Druckmasch | Feuchtwerk fuer offsetdruckmaschinen |
| DE3923350C1 (fr) * | 1989-07-14 | 1990-05-17 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
| US5158017A (en) * | 1990-09-11 | 1992-10-27 | Sun Graphic Technologies, Inc. | Press dampening system |
| DE19501146C1 (de) * | 1995-01-17 | 1996-04-25 | Roland Man Druckmasch | Feuchtwerk |
| DE19535266A1 (de) * | 1995-09-22 | 1997-04-03 | Roland Man Druckmasch | Kurzfarbwerk |
| EP0974460B1 (fr) * | 1998-06-23 | 2000-07-12 | FGD, Forschungsgesellschaft Druckmaschinen e.V. | Procédé et dispositif pour réguler le transfert de l'encre dans un appareil d'encrage |
| 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 |
| DE102004056277A1 (de) * | 2004-02-09 | 2005-09-08 | Koenig & Bauer Ag | Verfahren zum Verteilen eines von einer ersten Walze zur Oberfläche eines Formzylinders einer Druckmaschine zu transportierenden Feuchtmittels |
-
2005
- 2005-03-03 DE DE200510009681 patent/DE102005009681A1/de not_active Withdrawn
-
2006
- 2006-02-17 EP EP20060003294 patent/EP1698463B1/fr not_active Not-in-force
- 2006-02-24 JP JP2006049148A patent/JP2006240299A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1698463A3 (fr) | 2007-06-27 |
| JP2006240299A (ja) | 2006-09-14 |
| DE102005009681A1 (de) | 2006-09-07 |
| EP1698463A2 (fr) | 2006-09-06 |
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