EP0697283A2 - Procédé pour démarrer une unité de mouillage d'une machine d'impression offset - Google Patents

Procédé pour démarrer une unité de mouillage d'une machine d'impression offset Download PDF

Info

Publication number: EP0697283A2
Authority: EP; European Patent Office
Prior art keywords: dampening; roller; speed; starting; offset printing
Prior art date: 1994-08-18
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

EP95110974A

Other languages

German (de)

English (en)

Other versions

EP0697283A3 (fr

EP0697283B1 (fr

Inventor

Joachim Müller

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.)

1994-08-18

Filing date

1995-07-13

Publication date

1996-02-21

1995-07-13 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1996-02-21 Publication of EP0697283A2 publication Critical patent/EP0697283A2/fr

1996-12-18 Publication of EP0697283A3 publication Critical patent/EP0697283A3/fr

1998-02-18 Application granted granted Critical

1998-02-18 Publication of EP0697283B1 publication Critical patent/EP0697283B1/fr

2015-07-13 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000007645 offset printing Methods 0.000 title claims abstract description 8
238000000034 method Methods 0.000 title claims description 9
238000007639 printing Methods 0.000 claims description 10
230000002093 peripheral effect Effects 0.000 claims description 8
230000003111 delayed effect Effects 0.000 abstract description 2
238000013016 damping Methods 0.000 abstract 7
238000007598 dipping method Methods 0.000 description 4
238000007654 immersion Methods 0.000 description 2
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000004049 embossing Methods 0.000 description 1
239000002245 particle Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units
- 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 method for starting a dampening unit of an offset printing press according to the preamble of claim 1.
a dampening unit of an offset printing press is known from EP 0 450 155 B1, in which a dampening application roller is mounted on and off with respect to the plate cylinder and a dampening roller or an immersion roller.
the dampening roller is driven by the plate cylinder, i.e. both when switched on and off, it runs at its peripheral speed.
the plunger roller cooperating with a dampening solution box has its own speed-controllable drive, so that the required amount of dampening solution can be supplied at different press speeds in accordance with the dampening solution requirements of the printing form.
a dosing roller which is adjustable with respect to this also interacts with the dipping roller.
the object of the present invention is therefore to develop a method in accordance with the preamble of claim 1 in such a way that the disadvantages mentioned above can be avoided.
the dampening roller before the dampening roller is placed on the dampening agent-supplying dampening roller which is provided with its own drive, it is driven at such a speed that the peripheral speeds are at least approximately the same.
Such a synchronization of the peripheral speeds of the dampening agent supplying dampening unit roller with respect to the dampening application roller prevents the dampening agent supplying roller from losing color from the dampening application roller, which can lead to faults in the dampening system.
the measure according to the invention also prevents the ink layer located on the dampening roller from being deformed by an otherwise existing speed difference in the surface area in which the engagement takes place. This embossing of the ink layer on the dampening roller can lead to an uneven dampening solution distribution on the printing plate, which only breaks down after a few revolutions of the machine by leveling out this deformation.
a dampening unit supplying dampening unit roller 1 is designed as an immersion roller and interacts with a dampening unit box 2 in a manner known per se.
the dampening roller 1 has a speed-controllable drive, not shown, so that it can be driven at different, predetermined speeds.
dampening solution is supplied to the printing plate clamped on the plate cylinder 5.
dampening solution also reaches a first inking roller 7 of the inking unit shown.
the inking and dampening rollers are set against each other as well as on the plate cylinder 5. This position corresponds to the printing operation.
the inking rollers and also the dampening roller 3 are switched off by the plate cylinder 5.
the dampening roller 3 is switched off from the dampening unit roller 1 which supplies the dampening agent. It can be provided that the dampening unit roller 1 continues to run during the entire pressure interruption.
the printing press is first run up to a predetermined basic speed (for example 3,000 sheets / h). Since the dampening roller 3 is driven by the plate cylinder 5, it has the same peripheral speed as the plate cylinder 5. Before the dampening roller 3 is placed against the dampening agent supplying dampening roller 1, the dampening roller 1 is driven at a speed such that it rotates at a peripheral speed which is equal to that of the dampening roller 3. As soon as this is the case, the dampening roller 3 is positioned against the dampening roller 1 and also against the plate cylinder 5 (simultaneously or with a time delay). After the described process of placing the dampening roller 3 on the dampening roller 1, the latter is then driven at a speed which corresponds to the needs of the dampening solution.
a predetermined basic speed for example 3,000 sheets / h.
the above-described adjustment process of the dampening roller 3 to the dampening roller 1 is carried out by a control, not shown.
the control by specifying a corresponding speed setpoint on the drive of the dampening roller 1, rotates at a speed so that the peripheral speed of the dampening roller 1 is equal to that of the Moist application roller 3 is.
different basic speeds can be specified in the printing press (for example between 3,000 and 5,000 sheets / h freely selectable)
the control system calculates the required target speed value for the drive of the dampening unit roller 1 from the specified basic speed.
the speed setpoint for the drive of the dampening roller 1 can also be stored in a table in conjunction with various basic speed values.
the control has the effect that, after entering the command to start the printing press at basic speed, the drive of the dampening roller 1 is started directly. Delayed for this then the dampening roller 3 is turned in relation to the dampening roller 1 and the plate cylinder 5. A suitable choice of this time offset ensures that the drive of the dampening roller 1 has accelerated it to the intended speed before contact with the dampening roller 3.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Rotary Presses (AREA)
Inking, Control Or Cleaning Of Printing Machines (AREA)

EP95110974A 1994-08-18 1995-07-13 Procédé pour démarrer une unité de mouillage d'une machine d'impression offset Expired - Lifetime EP0697283B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4428887		1994-08-18
DE4428887A DE4428887C2 (de)	1994-08-18	1994-08-18	Verfahren zum Anfahren eines Feuchtwerkes einer Offsetdruckmaschine

Publications (3)

Publication Number	Publication Date
EP0697283A2 true EP0697283A2 (fr)	1996-02-21
EP0697283A3 EP0697283A3 (fr)	1996-12-18
EP0697283B1 EP0697283B1 (fr)	1998-02-18

Family

ID=6525724

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95110974A Expired - Lifetime EP0697283B1 (fr)	1994-08-18	1995-07-13	Procédé pour démarrer une unité de mouillage d'une machine d'impression offset

Country Status (3)

Country	Link
EP (1)	EP0697283B1 (fr)
AT (1)	ATE163278T1 (fr)
DE (2)	DE4428887C2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0450155B1 (fr)	1990-04-05	1994-06-15	MAN Roland Druckmaschinen AG	Procédé d'humidification et d'encrage d'un cliché positionné sur un cylindre porte-plaque

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1377116A (en) *	1972-11-30	1974-12-11	Polygraph Leipzig	Dampening devices for off-set printing machines
DE2927127A1 (de) *	1979-07-05	1981-01-08	Grafische Tech Automation	Druckmaschine, insbesondere offset- druckmaschine
GB2082121B (en) *	1980-08-14	1984-11-28	Komori Printing Mach	Water supply apparatus for printing press

1994
- 1994-08-18 DE DE4428887A patent/DE4428887C2/de not_active Expired - Fee Related
1995
- 1995-07-13 DE DE59501462T patent/DE59501462D1/de not_active Expired - Fee Related
- 1995-07-13 AT AT95110974T patent/ATE163278T1/de not_active IP Right Cessation
- 1995-07-13 EP EP95110974A patent/EP0697283B1/fr not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0450155B1 (fr)	1990-04-05	1994-06-15	MAN Roland Druckmaschinen AG	Procédé d'humidification et d'encrage d'un cliché positionné sur un cylindre porte-plaque

Also Published As

Publication number	Publication date
EP0697283A3 (fr)	1996-12-18
DE4428887A1 (de)	1996-02-22
DE4428887C2 (de)	1996-07-11
ATE163278T1 (de)	1998-03-15
DE59501462D1 (de)	1998-03-26
EP0697283B1 (fr)	1998-02-18

Legal Events

Date	Code	Title	Description
1996-01-10	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
1996-02-21	17P	Request for examination filed	Effective date: 19950726
1996-02-21	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB LI
1996-11-01	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1996-12-18	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB LI
1997-07-16	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-08-07	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-08-07	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-09-03	17Q	First examination report despatched	Effective date: 19970718
1997-09-19	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-12-31	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1998-02-18	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB LI
1998-02-18	REF	Corresponds to:	Ref document number: 163278 Country of ref document: AT Date of ref document: 19980315 Kind code of ref document: T
1998-02-27	ET	Fr: translation filed
1998-02-27	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: E. BLUM & CO. PATENTANWAELTE Ref country code: CH Ref legal event code: EP
1998-03-18	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19980219
1998-03-26	REF	Corresponds to:	Ref document number: 59501462 Country of ref document: DE Date of ref document: 19980326
1998-12-23	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1998-12-23	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1999-02-10	26N	No opposition filed
2001-07-09	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20010709 Year of fee payment: 7
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-06-19	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 20020619 Year of fee payment: 8
2002-06-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 20020626 Year of fee payment: 8
2002-06-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20020628 Year of fee payment: 8
2002-07-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 20020724 Year of fee payment: 8
2002-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020731
2003-03-14	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2003-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331
2003-05-02	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2003-07-13	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030713 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030713
2003-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030731
2004-01-31	BERE	Be: lapsed	Owner name: MAN ROLAND DRUCKMASCHINEN A.G. Effective date*: 20030731
2004-03-03	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20030713
2008-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20080722 Year of fee payment: 14
2010-06-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100202

Publication	Publication Date	Title
EP0141168B1 (fr)	1991-04-17	Réglage initial pour dispositifs d'encrage
DE3707695C2 (fr)	1991-01-17
DE19739283C2 (de)	2002-10-24	Verfahren zum Erreichen des Fortdruckzustandes in einer Rollenrotationsdruckmaschine
EP0403861B1 (fr)	1994-08-31	Méthode pour obtenir rapidement l'état d'impression
EP0706885B1 (fr)	1997-06-04	Procédé pour la formation d'une couche d'encre d'une épaisseur orientée vers l'impression continue dans une unité d'encrage
DE2845932A1 (de)	1980-04-24	Kombiniertes feucht-farbwerk fuer offsetdruckwerke
DE4011039C2 (de)	1996-03-14	Verfahren zum Befeuchten und Einfärben eines Plattenzylinders einer Mehrfarben-Offset-Bogenrotationsdruckmaschine
DE19921628B4 (de)	2005-12-29	Verfahren zum Dosieren von Feuchtmittel beim Drucken mit einer Druckform für Offsetdruck
DE4013740C2 (fr)	1993-06-09
DE10232110B4 (de)	2015-06-03	Verfahren zur Einstellung der Feuchtmittelzuführung einer Offset-Druckmaschine
DE10106986B4 (de)	2008-04-24	Verfahren zum Anfahren einer Offsetrotationsdruckmaschine
DE10057051B4 (de)	2011-03-10	Verfahren zum Anfahren einer Druckmaschine
DE19643354A1 (de)	1998-04-23	Verfahren zum Befeuchten einer Druckform für den Offsetdruck
EP1216833B1 (fr)	2006-06-28	Méthode de régulation de l'équilibre encre-solution de mouillage dans une machine d'impression rotative
EP0697283B1 (fr)	1998-02-18	Procédé pour démarrer une unité de mouillage d'une machine d'impression offset
EP1449659B1 (fr)	2006-01-18	Méthode et appareil de réglage du système d'encrage
EP0670216B1 (fr)	1997-03-26	Procédé pour commander l'encrage dans la production de produits imprimés
DE102005013634A1 (de)	2006-09-28	Verfahren zum Betrieb einer Druckmaschine
DE102008032393A1 (de)	2009-01-29	Fortdruckbeginn bei reduziertem Feuchtmittelauftrag
DE19701219A1 (de)	1998-07-23	Verfahren zur Steuerung der Farbgebung beim Drucken
EP0671267B1 (fr)	1997-09-24	Procédé pour changer la vitesse d'une machine d'impression
DE19506639C2 (de)	1997-03-13	Steuerung für ein kombiniertes Farb-Feuchtwerk
DE102004006662B4 (de)	2014-12-24	Verfahren zum Konditionieren einer Druckfarbe in einer Druckmaschine
EP0673770B1 (fr)	1997-04-16	Procédé et dispositif pour enlever des mouches de la plaque d'impression d'une machine à imprimer
CH650975A5 (en)	1985-08-30	Rotary printing machine for offset printing