EP2011645A2 - Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unité d'impression d'une presse rotative - Google Patents
Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unité d'impression d'une presse rotative Download PDFInfo
- Publication number
- EP2011645A2 EP2011645A2 EP08167472A EP08167472A EP2011645A2 EP 2011645 A2 EP2011645 A2 EP 2011645A2 EP 08167472 A EP08167472 A EP 08167472A EP 08167472 A EP08167472 A EP 08167472A EP 2011645 A2 EP2011645 A2 EP 2011645A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- printing
- forme
- forme cylinder
- transfer
- 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.)
- Withdrawn
Links
- 238000007639 printing Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000007645 offset printing Methods 0.000 description 13
- 239000000976 ink Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
- B41F13/21—Bearer rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
Definitions
- the invention relates to a device in a printing unit of a rotary printing press with a forme cylinder, a transfer cylinder and an impression cylinder according to the preamble of claim 1.
- a printing unit of a rotary printing machine for waterless offset printing wherein the printing unit has a forme cylinder, a transfer cylinder and an impression cylinder, wherein on the forme cylinder, a waterless printing form is arranged.
- WO 02/24453 A1 By the WO 02/24453 A1 are known pressure units with a drive network and a clutch, wherein a pair consisting of a forme cylinder and a transfer cylinder forms a firmly coupled, driven by a common drive motor drive network, said drive network to create a large variety of operation and variability of the printing unit with high reliability through redundancy with a drive of a cooperating with the transfer cylinder satellite cylinder via a clutch selectively switchable with each other is mechanically coupled.
- Basis of the variety in the modes of operation at the same time with little effort is the optional coupling of a fixed drive network of the cylinder pair with a counter-pressure cylinder.
- a transfer cylinder and a counter-pressure cylinder wherein the transfer cylinder and the impression cylinder have cooperating support elements.
- a normal force, ie contact pressure, between the support elements adjustable and an axial distance between the transfer cylinder and the impression cylinder is variable, wherein one of the two support elements bearing cylinder is mounted in eccentric bushings.
- the bearer rings effect, by their support of the cylinder, which is in addition to the cylinder bearing, an attenuation of cylinder vibrations, which are excited during the rotation of the cylinders of channels, which are necessarily incorporated in the cylinders for supporting elevators.
- DD-PS 113 187 a device for adjusting the contact pressure between cylinders of a rotary printing machine is known, wherein the means for the Plate cylinder adjustment is constructed analogous to that for the impression cylinder adjustment.
- the document DE 41 42 791 A1 relates to a device for adjusting the pressure and Druckan- Druckabwolf in printing presses, which can be operated either with Schmitzring or without Schmitzring animation, the device during printing in SchmitzringCount and without SchmitzringCount a common, synchronous adjustment of several cylinders to each other in a setting allows.
- a change in the pressure pressure between the rubber and impression cylinder of the plate cylinder is tracked to the blanket cylinder in such a way that regardless of the pressure gap between the rubber and impression cylinder, the distance between the plate cylinder and the blanket cylinder always remains the same.
- the invention has for its object to provide a device in a printing unit of a rotary printing machine with a forme cylinder, a transfer cylinder and a counter-pressure cylinder.
- the proposed embodiment of a printing unit has an advantageous effect, in particular, when the forme cylinder is coated with a silicone-coated printing plate. Because of the better adaptability of the contact pressure between the forme cylinder and the transfer cylinder, the durability of an applied on a forme cylinder printing form is increased, which is particularly true for a waterless offset printing, in which also by the proposed trackability of the contact pressure in the current printing process achievable with the printing plate Print quality is improved. Moreover eliminates the otherwise required lubrication and cleaning of arranged between the forme cylinder and the transfer cylinder bearer rings.
- the single FIGURE shows a simplified representation of a printing unit with a form cylinder, a transfer cylinder and a counter-pressure cylinder.
- a arranged in the printing unit printing point of a rotary printing machine is rotated by a cylinder 01, the z. B. is designed as a counter-pressure cylinder 01 and another cylinder 02, the z. B. is formed as a transfer cylinder 02 formed. Between these two cylinders 01; 02 is a substrate, z. B. a paper web (not shown).
- These cylinders 01; 02 are at both ends of their bale 03; 04 each with a support member 06; 07, z. B. a bearer 06; 07 provided the bales 03; 04 each have a length L.
- the Bearer rings 06; 07 adjacent cylinder 01; 02 roll in pairs.
- the cylinders 01; 02 are with pin 08; 09 provided by means of bearings 11; 12 in side frames 13; 14 are stored.
- the transfer cylinder 02 is at least one also in the side frames 13; 14 preferably in eccentric bushings 18; 19 mounted form cylinder 21 associated with a rotation axis 22, wherein the rotation axis 22 of the forme cylinder 21 and the rotation axis 17 of the transfer cylinder 02 to each other have an adjustable and as required trackable axis distance a2.
- the forme cylinder 21 may on its lateral surface 23 z. B. have four printing plates 26 to 29.
- the printing plates 26 to 29 may, for. B. may be formed as printing plates, in particular as waterless planographic printing forms, which are placed on the lateral surface 23 and held in the form cylinder 21 introduced channels 24.
- the assignment of the forme cylinder 21 may, for. B. such that in the circumferential direction in each case two printing plates 26 and 27 or 28 and 29 (the latter printing plate 29 is not shown, since it is in the illustration on the back of the forme cylinder 21) are arranged side by side, wherein the juxtaposed printing forms 26 and 27 and 28 and 29 are offset from each other by 90 °.
- the transfer cylinder 02 has on its lateral surface 31 one or more blankets 32, which are also preferably held in one or more introduced into the lateral surface 31 channels 24 and optionally arranged offset on the circumference of the transfer cylinder 02.
- the aforementioned pressure point can be arranged for example in a four-cylinder printing unit, in which the impression cylinder is also designed as a transfer cylinder, wherein this transfer cylinder another not shown form cylinder is assigned such that these two cylinders roll on each other.
- This printing unit can also be expanded to a four-high tower. It is, however possible to use the above-described pressure points with a counter-pressure cylinder, for example in a five-cylinder printing unit, a ten-cylinder printing unit consisting of two five-cylinder printing units or a nine-cylinder printing unit.
- the printing unit described here operates in a planographic printing process and preferably uses a printing forme suitable for waterless offset printing ("dry offset").
- dry offset printing refers to a printing unit without a dampening unit, d. H. in addition to the supply of ink, a supply of a fountain solution for the formation of non-printing areas is not required.
- wet offset prevents the non-printing areas on the printing form from accepting printing ink
- a printing forme suitable for waterless offset printing preferably has a support layer or a substrate which may be made of aluminum and has a suitable thickness in order to achieve the desired mechanical properties.
- a color-accepting layer and overlying a color-repellent layer are applied.
- the ink-receiving layer may be formed as a polyethylene film. Its thickness may be in the range of 5 to 50 microns, preferably it is about 20 microns.
- the color-repellent layer consists z. B. silicone. Their thickness is suitably chosen. It can be in the range of a few microns, z. B. at about 2 microns.
- the silicone layer takes over the role of the wettable hydrophilic area of the wet offset and prevents the printing form from absorbing ink.
- an adhesive or primer layer e.g. As a titanium oxide layer.
- the frictional heat generated by the contact pressure influences the behavior of the printing ink used in the printing process, in particular their fluidity and adhesion to the printing plate and ultimately on the substrate, and thus on the print quality, so setting and tracking of the contact pressure also taking into account these process parameters can be done.
- the contact pressure between the forme cylinder 21 and the transfer cylinder 02 is adaptable in that the axial distance a2 between the forme cylinder 21 and the transfer cylinder 02 is variable.
- the axial distance a2 thus has different values at different contact pressure, so that the forme cylinder 21 can be located at different positions in the printing process relative to the transfer cylinder 02.
- This adaptation can then be carried out in a simple manner, when the forme cylinder 21 no cooperating with the transfer cylinder 02 support member 06; 07 has.
- Such on the forme cylinder 21 attached support member 06; 07 would namely limit the adjustment options for the forme cylinder 21, but at least make it much more difficult.
- the contact pressure between the forme cylinder 21 and the transfer cylinder 02 is by a change in their axial distance a2 preferably also in the current printing process, in particular remotely controlled by a printing machine associated control station, adjustable and one for the durability of the printing plates 26 to 29 and the print quality optimal contact pressure trackable.
- the axis of rotation 22 of the forme cylinder 21 at least with an eccentric bushing 18; 19, a lever device or a linear drive is operatively connected, whereby the forme cylinder 21 against the transfer cylinder 02 is adjusted as needed.
- an eccentric cylindrical bearing without bushes can also be used.
- the support element 07 of the transfer cylinder 02 and the support member 06 of the impression cylinder 01 preferably arranged on each other unrollable, it is advantageous that the transfer cylinder 02 and the impression cylinder 01 z. B. by swiveling or by covering a path from each other are removable.
- the counter-pressure cylinder 01 overlapping part of the side frames 13; 14 be designed movable from the other parts to z.
- the setting of the axis distance a1 and thus the contact pressure between the impression cylinder 01 and the transfer cylinder 02 is thus independent of the setting of the axis distance a2 and the corresponding contact pressure between the transfer cylinder 02 and the forme cylinder 21.
- the impression cylinder 01 can also be used as a transfer cylinder may be formed and together with another form cylinder form a further pressure point.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10228242A DE10228242B4 (de) | 2002-06-25 | 2002-06-25 | Druckwerk einer im wasserlosen Offsetdruck arbeitenden Rotationsdruckmaschine mit zwei Druckstellen |
| EP03706276A EP1515850A1 (fr) | 2002-06-25 | 2003-01-31 | Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unite d'impression d'une presse rotative |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03706276A Division EP1515850A1 (fr) | 2002-06-25 | 2003-01-31 | Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unite d'impression d'une presse rotative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2011645A2 true EP2011645A2 (fr) | 2009-01-07 |
Family
ID=29795868
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08167472A Withdrawn EP2011645A2 (fr) | 2002-06-25 | 2003-01-31 | Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unité d'impression d'une presse rotative |
| EP03706276A Withdrawn EP1515850A1 (fr) | 2002-06-25 | 2003-01-31 | Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unite d'impression d'une presse rotative |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03706276A Withdrawn EP1515850A1 (fr) | 2002-06-25 | 2003-01-31 | Dispositif de support et d'ajustage d'un cylindre porte-forme dans une unite d'impression d'une presse rotative |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7392742B2 (fr) |
| EP (2) | EP2011645A2 (fr) |
| AU (1) | AU2003208278A1 (fr) |
| DE (1) | DE10228242B4 (fr) |
| WO (1) | WO2004000557A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004031029A1 (de) * | 2004-06-26 | 2006-01-19 | Man Roland Druckmaschinen Ag | Druckeinheit einer Rollenrotationsdruckmaschine |
| DE102005014255A1 (de) * | 2005-03-30 | 2006-10-05 | Koenig & Bauer Ag | Lagerung von Walzen und/oder Zylindern in Druckwerken von Rotationsdruckmaschinen |
| DE102007010481B4 (de) | 2007-03-03 | 2018-12-20 | Koenig & Bauer Ag | Bogenrotationsdruckmaschine |
| DE102007015347A1 (de) | 2007-03-30 | 2008-10-02 | Koenig & Bauer Aktiengesellschaft | Verfahren zur Verminderung von Schwingungen in bogenverarbeitenden Rotationsdruckmaschinen |
| US9174428B2 (en) * | 2009-08-10 | 2015-11-03 | Corning Incorporated | Roll mechanics for enabling printed electronics |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD113187A1 (fr) | 1974-07-02 | 1975-05-20 | ||
| DE2802153A1 (de) | 1978-01-19 | 1979-07-26 | Maschf Augsburg Nuernberg Ag | Schmitzringverbindung zwischen zwei druckwerkszylindern |
| DE2926570C2 (fr) | 1979-06-30 | 1987-09-17 | Koenig & Bauer Ag, 8700 Wuerzburg, De | |
| DE4142791A1 (de) | 1991-12-23 | 1993-06-24 | Kba Planeta Ag | Einrichtung zur einstellung der druckpressung sowie der druckan- und druckabstellung in druckmaschinen |
| EP0652104A1 (fr) | 1993-11-05 | 1995-05-10 | MAN Roland Druckmaschinen AG | Unité d'impression pour impression offset sans eau de mouillage |
| US5487338A (en) | 1992-07-20 | 1996-01-30 | Presstek, Inc. | Lithographic printing plates for use with laser-discharge imaging apparatus |
| DE19501243A1 (de) | 1995-01-17 | 1996-07-18 | Wifag Maschf | Schmitzringlagerung für einen Zylinder einer Rotationsdruckmaschine |
| WO2000041887A1 (fr) | 1999-01-18 | 2000-07-20 | Koenig & Bauer Aktiengesellschaft | Dispositif d'entrainement de cylindres |
| WO2002024453A1 (fr) | 2000-09-20 | 2002-03-28 | Koenig & Bauer Aktiengesellschaft | Unites d'impression a ensemble d'entrainement et accouplement |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE113187C (fr) | 1898-03-31 | |||
| DE2805153B2 (de) | 1978-02-08 | 1980-08-28 | Gebr. Dennert, 8602 Viereth | Hydrothermalgehärteter Lochstein aus Kalk und kieselsäurehaltigem überwiegend amorphem Leichtzuschlag und ein Verfahren zu dessen Herstellung |
| US4426897A (en) * | 1981-07-13 | 1984-01-24 | Littleton Francis J | Thermal adjustment method and apparatus for rotating machines |
| CA2043297A1 (fr) * | 1990-11-28 | 1992-05-29 | Francis J. Littleton | Controle de la nettete d'impression d'une machine a imprimer |
| DE19805898C2 (de) * | 1998-02-13 | 2003-09-18 | Roland Man Druckmasch | Druckwerk für eine Rollenrotationsdruckmaschine |
| DE19833468C2 (de) * | 1998-07-24 | 2000-05-18 | Koenig & Bauer Ag | Druckwerke |
| US6227111B1 (en) | 1998-10-21 | 2001-05-08 | Heidelberger Druckmaschinen Ag | Impression setting mechanism for a printing unit |
| DE19956949C2 (de) * | 1999-11-26 | 2003-05-28 | Koenig & Bauer Ag | Lagerung eines Formzylinders einer Rotationsdruckmaschine |
| DE10035787C2 (de) * | 2000-07-22 | 2002-05-16 | Koenig & Bauer Ag | Verfahren zur Regelung einer Bahnspannung |
-
2002
- 2002-06-25 DE DE10228242A patent/DE10228242B4/de not_active Expired - Fee Related
-
2003
- 2003-01-31 AU AU2003208278A patent/AU2003208278A1/en not_active Abandoned
- 2003-01-31 WO PCT/DE2003/000270 patent/WO2004000557A1/fr not_active Ceased
- 2003-01-31 EP EP08167472A patent/EP2011645A2/fr not_active Withdrawn
- 2003-01-31 US US10/517,607 patent/US7392742B2/en not_active Expired - Fee Related
- 2003-01-31 EP EP03706276A patent/EP1515850A1/fr not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD113187A1 (fr) | 1974-07-02 | 1975-05-20 | ||
| DE2802153A1 (de) | 1978-01-19 | 1979-07-26 | Maschf Augsburg Nuernberg Ag | Schmitzringverbindung zwischen zwei druckwerkszylindern |
| DE2926570C2 (fr) | 1979-06-30 | 1987-09-17 | Koenig & Bauer Ag, 8700 Wuerzburg, De | |
| DE4142791A1 (de) | 1991-12-23 | 1993-06-24 | Kba Planeta Ag | Einrichtung zur einstellung der druckpressung sowie der druckan- und druckabstellung in druckmaschinen |
| US5487338A (en) | 1992-07-20 | 1996-01-30 | Presstek, Inc. | Lithographic printing plates for use with laser-discharge imaging apparatus |
| EP0652104A1 (fr) | 1993-11-05 | 1995-05-10 | MAN Roland Druckmaschinen AG | Unité d'impression pour impression offset sans eau de mouillage |
| DE19501243A1 (de) | 1995-01-17 | 1996-07-18 | Wifag Maschf | Schmitzringlagerung für einen Zylinder einer Rotationsdruckmaschine |
| WO2000041887A1 (fr) | 1999-01-18 | 2000-07-20 | Koenig & Bauer Aktiengesellschaft | Dispositif d'entrainement de cylindres |
| WO2002024453A1 (fr) | 2000-09-20 | 2002-03-28 | Koenig & Bauer Aktiengesellschaft | Unites d'impression a ensemble d'entrainement et accouplement |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10228242B4 (de) | 2004-09-16 |
| WO2004000557A1 (fr) | 2003-12-31 |
| US7392742B2 (en) | 2008-07-01 |
| DE10228242A1 (de) | 2004-01-29 |
| AU2003208278A1 (en) | 2004-01-06 |
| US20050223921A1 (en) | 2005-10-13 |
| EP1515850A1 (fr) | 2005-03-23 |
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