EP0722829A2 - Procédé et dispositif de mouillage pour étaler un agent mouillant - Google Patents

Procédé et dispositif de mouillage pour étaler un agent mouillant Download PDF

Info

Publication number: EP0722829A2
Authority: EP; European Patent Office
Prior art keywords: roller; dampening; dampening solution; rollers; unit according
Prior art date: 1995-01-17
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

EP96100334A

Other languages

German (de)

English (en)

Other versions

EP0722829A3 (fr

EP0722829B1 (fr

Inventor

Gerhard Zuber

Günter Koppelkamm

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.)

1995-01-17

Filing date

1996-01-11

Publication date

1996-07-24

1996-01-11 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1996-07-24 Publication of EP0722829A2 publication Critical patent/EP0722829A2/fr

1997-01-02 Publication of EP0722829A3 publication Critical patent/EP0722829A3/fr

1999-03-31 Application granted granted Critical

1999-03-31 Publication of EP0722829B1 publication Critical patent/EP0722829B1/fr

2016-01-11 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 11
238000000151 deposition Methods 0.000 title 1
238000007645 offset printing Methods 0.000 claims abstract description 4
238000009826 distribution Methods 0.000 claims description 4
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
239000004959 Rilsan Substances 0.000 claims description 2
229910052802 copper Inorganic materials 0.000 claims description 2
239000010949 copper Substances 0.000 claims description 2
238000005507 spraying Methods 0.000 claims 4
239000000919 ceramic Substances 0.000 claims 1
229910052804 chromium Inorganic materials 0.000 claims 1
239000011651 chromium Substances 0.000 claims 1
239000004033 plastic Substances 0.000 claims 1
238000005096 rolling process Methods 0.000 claims 1
238000007639 printing Methods 0.000 abstract description 11
239000007921 spray Substances 0.000 abstract description 4
230000015572 biosynthetic process Effects 0.000 description 3
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000001476 alcoholic effect Effects 0.000 description 1
230000005540 biological transmission Effects 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
238000011109 contamination Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000009499 grossing Methods 0.000 description 1
239000012535 impurity Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
239000000758 substrate Substances 0.000 description 1
230000003319 supportive effect Effects 0.000 description 1
238000009827 uniform distribution Methods 0.000 description 1
238000011144 upstream manufacturing 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
- B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor
- 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
- B41F7/30—Damping devices using spraying elements

Definitions

the invention relates to a method and a dampening unit for applying a dampening solution according to the preamble of claims 1 and 7.
the dampening solution is sprayed in a contactless and metered manner onto the first roller in the conveying direction of the dampening solution of a roller strand which consists of at least three rollers arranged in series and is in contact with the forme cylinder.
a compensating roller equipped with a dampening liquid-absorbing surface preferably provided with a molton coating, is used for the uniform distribution of the dampening solution applied by means of a plurality of sliding plates in the axial direction.
a roller upstream or downstream of the compensating roller can also be provided with a relative movement relative to the compensating roller.
the dampening solution is sprayed onto a roller equipped with a hard, dampening agent-friendly surface, preferably designed as a chrome-plated friction roller, which is followed by at least one roller equipped with an elastic surface in the conveying direction of the dampening solution, which is favorably arranged as the subsequent application roller, which contacts a forme cylinder, is rubber-coated.
Additional flexing work of the intermediate soft roller is intended to promote the formation of emulsions between dampening solution and ink, particularly in the case of so-called rewetting.
dampening systems described are preferably designed for newspaper printing, while for the higher quality illustration printing, spray dampening systems which work with the alcohol additive which favors the formation of the dampening solution film or technically complex ones are generally used Film dampening systems are used.
the invention has for its object to provide a method and a dampening unit for applying a dampening solution according to the preamble of claims 1 and 7, which uses a non-alcoholic dampening solution, with a comparatively small number of rollers and utilizing the special advantages of contactless Spray dampening systems can be used for both newspaper and illustration printing.
the invention enables the formation of an alcohol-free dampening solution film, which is also suitable for illustration printing and is evenly applied to the forme cylinder, the measures according to the subclaims having a supportive effect, in particular with regard to different properties of the printing substrate and the printing ink. contain favorable design options.
the forme cylinder 1 for offset printing is provided with an alcohol-free dampening solution film from an applicator roller 3 equipped with a rubber layer 2 of a roller strand 4 consisting of three positively driven rollers, which as a result of slipping of the rollers in their mutual contact points 5; 6 is smoothed several times with an elongation at the respective greater peripheral speed of the roller lying in the conveying direction of the dampening solution film.
the dampening solution is sprayed contactlessly by a spray device 7 equipped, for example, with a rotor and a dampening solution metering that enables adjustable orifices, onto the first transfer roller 9 of the roller strand 4, which is also provided with a rubber layer 8 and which has a hard, chromed surface, in the conveying direction of the dampening solution Friction roller 10 contacted, which in turn is in contact with the applicator roller 3.
the transfer roller 9 and the application roller 3 are on both sides in a double lever 11, which can be swiveled coaxially about the friction roller 10, by means of a positioning eccentric which enables them to be adjusted relative to the friction roller 10 stored.
a pressure medium-operated working cylinder 12 is articulated on the double lever 11, the pivoting movement of which is limited by an adjustable stop 13 with respect to the position of the application roller 3 relative to the forme cylinder 1.
the transfer roller 9, the friction roller 10 and the applicator roller 3 are driven to each other with a fixed step.
the drive of the transfer roller 9 and the applicator roller 3 can be carried out in a manner not shown, once via spur gears stepped in the appropriate transmission ratio, from the, including their traversing drive, driven by the forme cylinder 1, the friction roller 10, or the transfer roller 9 and the applicator roller 3 are together via sprockets and a Chain or a toothed belt and a sprocket engaging in one of their dreams, connected to an electric motor fixed to the frame or connected to the double lever.
the respective slippage between the rollers is fixed in a range of 5 to 25%, while the drive of the entire roller strand can be adjusted with a slippage of ⁇ 1 to 5% compared to the forme cylinder to enable a wiping effect of the application roller 3 that cleans the printing form.
the contact zone between the rollers should be 4 to 6 mm in the circumferential direction.
the dampening solution supply can improve the dampening film to be applied and / or in the dampening solution return, in particular to equalize impurities absorbed by the printing form, in each case one contacting with the application roller 3, driven by this by means of friction, in which Drawing dash-dotted roller 14; 15 to be arranged, the distributor roller being coated with chrome in the dampening solution supply and the distributor roller in the dampening solution return with copper or Rilsan according to the functions to be fulfilled.
the distribution rollers can advantageously be coupled to the traversing drive of the friction roller 10, so that the axial frictional movements of all rollers take place synchronously.
the distribution rollers 14; 15 are mounted in adjustable eccentrics opposite the applicator roller 3.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Rotary Presses (AREA)

EP96100334A 1995-01-17 1996-01-11 Dispositif de mouillage pour étaler un agent mouillant Expired - Lifetime EP0722829B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19501148		1995-01-17
DE19501148A DE19501148A1 (de)	1995-01-17	1995-01-17	Verfahren und Feuchtwerk zum Aufbringen eines Feuchtmittels

Publications (3)

Publication Number	Publication Date
EP0722829A2 true EP0722829A2 (fr)	1996-07-24
EP0722829A3 EP0722829A3 (fr)	1997-01-02
EP0722829B1 EP0722829B1 (fr)	1999-03-31

Family

ID=7751622

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96100334A Expired - Lifetime EP0722829B1 (fr)	1995-01-17	1996-01-11	Dispositif de mouillage pour étaler un agent mouillant

Country Status (2)

Country	Link
EP (1)	EP0722829B1 (fr)
DE (2)	DE19501148A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19911568A1 (de) *	1999-03-16	2000-09-21	Heidelberger Druckmasch Ag	Verfahren zum Einfeuchten einer Flachdruckform und Feuchtwerk einer Flachdruckmaschine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19840602A1 (de) *	1998-09-05	2000-03-09	Koenig & Bauer Ag	Verfahren zur Beeinflussung der Übertragungsrate
DE19840601C2 (de) *	1998-09-05	2001-10-11	Koenig & Bauer Ag	Auftragwerk für Feuchtflüssigkeit
DE102007050979A1 (de) *	2007-10-25	2009-04-30	Manroland Ag	Dosiervorrichtung eines Feuchtwerks oder Farbwerks einer Druckmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2822350A1 (de) *	1977-05-31	1978-12-07	Nebiolo Spa	Feuchtwerk fuer flachdruckmaschinen
DE7814099U1 (de) *	1978-05-10	1979-05-31	Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach	Feuchteinrichtung fuer eine druckmaschine
JPS5874358A (ja) *	1981-10-30	1983-05-04	Mitsubishi Heavy Ind Ltd	オフセツト印刷機の湿し装置
DE3336875A1 (de) *	1983-10-11	1985-04-18	M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach	Vorrichtung zum befeuchten von druckplatten in rotationsdruckmaschinen
DE3526236A1 (de) *	1985-07-23	1987-01-29	Goebel Gmbh Maschf	Feuchtwerk
FR2663588B1 (fr) *	1990-06-21	1992-10-09	Marinoni Harris Sa	Systeme de mouillage a film pour presse offset rotative.

1995
- 1995-01-17 DE DE19501148A patent/DE19501148A1/de not_active Withdrawn
1996
- 1996-01-11 EP EP96100334A patent/EP0722829B1/fr not_active Expired - Lifetime
- 1996-01-11 DE DE59601524T patent/DE59601524D1/de not_active Expired - Fee Related

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19911568A1 (de) *	1999-03-16	2000-09-21	Heidelberger Druckmasch Ag	Verfahren zum Einfeuchten einer Flachdruckform und Feuchtwerk einer Flachdruckmaschine
EP1036658A3 (fr) *	1999-03-16	2001-03-21	Heidelberger Druckmaschinen Aktiengesellschaft	Procédé pour mouiller une plaque offset et dispositif de mouillage d'une machine d'impression planographique
US6460455B1 (en)	1999-03-16	2002-10-08	Heidelberger Druckmaschinen Ag	Method for dampening a planographic printing form and dampening unit of a planographic printing machine for performing the method

Also Published As

Publication number	Publication date
EP0722829A3 (fr)	1997-01-02
EP0722829B1 (fr)	1999-03-31
DE59601524D1 (de)	1999-05-06
DE19501148A1 (de)	1996-07-18

Legal Events

Date	Code	Title	Description
1996-06-07	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1996-07-24	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB SE
1996-11-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1997-01-02	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB SE
1997-07-09	17P	Request for examination filed	Effective date: 19970510
1997-09-17	17Q	First examination report despatched	Effective date: 19970804
1998-03-16	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-07-23	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-07-23	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-10-28	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1999-02-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1999-03-31	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB SE
1999-05-06	REF	Corresponds to:	Ref document number: 59601524 Country of ref document: DE Date of ref document: 19990506
1999-05-19	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19990422
1999-07-16	ET	Fr: translation filed
2000-02-04	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2000-02-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2000-03-22	26N	No opposition filed
2001-12-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20011214 Year of fee payment: 7
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2003-09-02	EUG	Se: european patent has lapsed
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