EP1356933A1 - Presse d'impression avec station de séchage - Google Patents
Presse d'impression avec station de séchage Download PDFInfo
- Publication number
- EP1356933A1 EP1356933A1 EP02009128A EP02009128A EP1356933A1 EP 1356933 A1 EP1356933 A1 EP 1356933A1 EP 02009128 A EP02009128 A EP 02009128A EP 02009128 A EP02009128 A EP 02009128A EP 1356933 A1 EP1356933 A1 EP 1356933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- drying
- drying station
- printing machine
- tempering
- 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- Withdrawn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 66
- 238000001035 drying Methods 0.000 title claims abstract description 48
- 238000005496 tempering Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000007774 anilox coating Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 For example Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0483—Drying combined with cooling
Definitions
- the invention relates to a printing machine with a plurality of rows arranged and traversed by a printing material printing units, which in each case a drying station is arranged downstream.
- each drying station has a largely closed housing on, in which the freshly printed web is blown with hot drying air is, while it runs sequentially on several guide rollers, the printing material web support at the back.
- the drying station has a sufficiently large length alselseln and / or a sufficiently high drying temperature must be selected become.
- there are limits to increasing the drying temperature because most substrates tend to heat up when heated Longitudinal direction as well as in the transverse direction depending on the material more or less strongly shrink, so that it can lead to registration errors, if the individual Color separations are printed one above the other.
- Another disadvantage of Conventional drying stations consists of a machine in a row construction in that the individual guide rollers, the substrate web only support linear, while the spaces between the individual Guide rollers are freely spanned by the substrate web. By the Blowing with drying air can therefore result in a considerable mechanical Stress on the substrate web and fluttering and possibly a shift of the printing material come.
- the object of the invention is to provide a printing machine of the type mentioned to create an efficient and yet gentle drying of the printing substrate allows.
- This object is achieved in that the drying stations each on the circumference of a single, the substrate web supporting Tempering are arranged.
- the printing material in the drying station on a larger Circumferential angle of the tempering is supported flat, when blowing with drying air or another drying medium fluttering of the printing material web as well as a relocation of the same are largely avoided, and also the mechanical stress of the printing material web becomes significant reduced.
- Another significant advantage of the invention is that due to the flat contact of the printing substrate on the tempering a considerable proportion of the heat of drying over the back of the printing material web can be dissipated. In the printing substrate so a temperature gradient in the sense that the temperature of the printing material from the printed and blown with drying air and / or infrared radiation or UV radiation irradiated side to the back decreases.
- drying stations structurally simplified, since they instead of multiple guide rollers need show only a single tempering, so that the number the required bearing and possibly drive devices is reduced.
- the drying station both blowing nozzles for a hot drying medium and infrared or UV emitters or a combination of tuyeres and emitters have.
- the tempering roller preferably has a jacket with high thermal conductivity on, over which the heat of drying can be dissipated effectively.
- the tempering roll has a cooling jacket, whose temperature is thermostatically controlled.
- the cooling jacket can a system of cooling chambers comprising a liquid cooling medium, For example, water, to be flowed through.
- FIG. 1 shows a part of a flexographic printing machine in a row construction with several Printing units 10, which successively pass through a printing material web 12 become.
- Each printing unit 10 comprises a chamber doctor blade 14, an anilox roller 16, a printing cylinder 18, an impression cylinder 20 and a Drying station 22 and a plurality of guide rollers 24 for the printing substrate.
- the anilox roller 18 has a fine cell pattern on its surface and is inked during passage through the chambered doctor blade 14 with ink. Of the Printing cylinder 18 rolls on the anilox roller 16, so that the printing parts the clichés take over the ink from the anilox roller 16.
- the printing material web 12 is printed when passing through a gap between the impression cylinder 18 and the impression cylinder 20 runs, and then enters the associated Drying station 22, in which the freshly applied ink dried is before the printing material on the guide rollers 24 to the next Printer is forwarded.
- the drying station 22 is arranged on the circumference of a tempering roller 26 and extends over a larger circumferential angle of the tempering roller 26, in the example shown over a circumferential angle of about 45 °, on which the printing substrate 12 flat against the peripheral surface of the tempering roller 26 abuts.
- the drying station 22 has a housing 28, which follows the surface curvature of the tempering roller 26 and the tempering is open.
- This housing 28 receives a plurality of blowing nozzles 30, from where the surface of the voltage applied to the tempering roller 26 printing material with a hot drying medium, for example blown with hot air becomes.
- the housing 28 also contains several more Spotlight 32, z. B. infrared radiators with which the surface temperature of the Substrate web and thus the drying effect can be increased.
- the tempering roller 26 has a cooling jacket 34, the more evenly on the peripheral surface of the tempering roller distributed cooling chambers 36 forms, the to be flowed through by a cooling medium, for example by water.
- the Cooling chambers 36 are via a conduit system 38 and over at one or both Ends of the tempering arranged rotary unions 40 with a Circulation system 42 connected to the cooling medium.
- the outer peripheral wall of the cooling jacket 34 at which the printing material in the drying station 22 is applied, consists of a material with high thermal conductivity.
- These peripheral wall are preferably at several on the circumference and in Axially distributed points embedded temperature sensor 44, which measured the Report temperature of the cooling jacket 34 to the circulation system 42, so that the temperature of the cooling jacket can be thermostatically controlled. instead the temperature sensor 44 may optionally be provided also a sensor, the the return temperature of the cooling medium measures.
- the cooling medium circulated in the cooling jacket 34 can not only be used for cooling be used, but for example, to the tempering 26th preheat to a suitable operating temperature before printing begins, so that in the drying station 22 from the beginning optimal temperature conditions to rule.
- the dissipated with the cooling medium heat can with Using a heat exchanger system for preheating the drying air used so that an energy-saving drying of the printing material allows becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Printing Methods (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02009128A EP1356933A1 (fr) | 2002-04-23 | 2002-04-23 | Presse d'impression avec station de séchage |
| US10/390,197 US20030196347A1 (en) | 2002-04-23 | 2003-03-17 | Printing machine with drying station |
| JP2003116959A JP2003311925A (ja) | 2002-04-23 | 2003-04-22 | 乾燥ステーションを備えた印刷機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02009128A EP1356933A1 (fr) | 2002-04-23 | 2002-04-23 | Presse d'impression avec station de séchage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1356933A1 true EP1356933A1 (fr) | 2003-10-29 |
Family
ID=28685895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02009128A Withdrawn EP1356933A1 (fr) | 2002-04-23 | 2002-04-23 | Presse d'impression avec station de séchage |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20030196347A1 (fr) |
| EP (1) | EP1356933A1 (fr) |
| JP (1) | JP2003311925A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2774766A1 (fr) * | 2013-03-07 | 2014-09-10 | Ricoh Company, Ltd. | Commande de température de tambour pour un séchoir par rayonnement d'un système d'impression |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015140756A1 (fr) * | 2014-03-21 | 2015-09-24 | Nuova Gidue S.R.L. | Procédé et dispositif de commande et de gestion des paramètres d'impression d'une machine d'impression flexographique |
| EP3988304A1 (fr) | 2020-10-22 | 2022-04-27 | Heidelberger Druckmaschinen AG | Machine d'impression pourvue de groupe d'impression double et procédé de fonctionnement d'une telle machine d'impression |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB744343A (en) * | 1952-11-04 | 1956-02-01 | Svenska Vaxduks Aktiebolaget | Improved apparatus for treating webs of thermoplastic material |
| EP0589260A1 (fr) * | 1992-09-07 | 1994-03-30 | BHS Druck- und Veredelungstechnik GmbH | Machine d'impression |
| WO1996034700A1 (fr) * | 1995-05-04 | 1996-11-07 | Nölle Gmbh | Procede et dispositif permettant de durcir une couche sur un substrat |
| US5634402A (en) * | 1995-10-12 | 1997-06-03 | Research, Incorporated | Coating heater system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE423118B (sv) * | 1978-03-31 | 1982-04-13 | Karlstad Mekaniska Ab | Forfarande och anordning for konsolodering och torkning av en fuktig poros bana |
| SE512944C2 (sv) * | 1998-10-01 | 2000-06-12 | Sca Research Ab | Metod att framställa papper med ett tredimensionellt mönster |
-
2002
- 2002-04-23 EP EP02009128A patent/EP1356933A1/fr not_active Withdrawn
-
2003
- 2003-03-17 US US10/390,197 patent/US20030196347A1/en not_active Abandoned
- 2003-04-22 JP JP2003116959A patent/JP2003311925A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB744343A (en) * | 1952-11-04 | 1956-02-01 | Svenska Vaxduks Aktiebolaget | Improved apparatus for treating webs of thermoplastic material |
| EP0589260A1 (fr) * | 1992-09-07 | 1994-03-30 | BHS Druck- und Veredelungstechnik GmbH | Machine d'impression |
| WO1996034700A1 (fr) * | 1995-05-04 | 1996-11-07 | Nölle Gmbh | Procede et dispositif permettant de durcir une couche sur un substrat |
| US5634402A (en) * | 1995-10-12 | 1997-06-03 | Research, Incorporated | Coating heater system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2774766A1 (fr) * | 2013-03-07 | 2014-09-10 | Ricoh Company, Ltd. | Commande de température de tambour pour un séchoir par rayonnement d'un système d'impression |
| US9605898B2 (en) | 2013-03-07 | 2017-03-28 | Ricoh Company, Ltd. | Drum temperature control for a radiant dryer of a printing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003311925A (ja) | 2003-11-06 |
| US20030196347A1 (en) | 2003-10-23 |
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| 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 |
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| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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| AKX | Designation fees paid | ||
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20040430 |