EP1106353B1 - Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff - Google Patents
Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff Download PDFInfo
- Publication number
- EP1106353B1 EP1106353B1 EP99122353A EP99122353A EP1106353B1 EP 1106353 B1 EP1106353 B1 EP 1106353B1 EP 99122353 A EP99122353 A EP 99122353A EP 99122353 A EP99122353 A EP 99122353A EP 1106353 B1 EP1106353 B1 EP 1106353B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- dust
- printing
- doctor blade
- substrate
- 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.)
- Expired - Lifetime
Links
- 239000000758 substrate Substances 0.000 title description 15
- 238000000034 method Methods 0.000 title description 5
- 239000000843 powder Substances 0.000 title 1
- 239000000428 dust Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 238000007373 indentation Methods 0.000 claims 1
- 238000007774 anilox coating Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005406 washing Methods 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
- B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
Definitions
- the invention relates to a device for dedusting of printing material in Printing machines and a flexographic printing machine with such a device.
- Devices according to the preamble of claim 1, in which a moistened Roller rolls on the substrate, are from DE-C-237 919 and NL-A-79 03 999th known.
- the object of the invention is to provide a cost-effective device, the enables effective dedusting of substrates in a printing press.
- a device for dedusting of printing substrate in a printing machine with a roller using or rolls without slippage on the substrate, a device for moistening the surface of the roller and a device arranged on the circumference of this roller for removing the dust from the roll surface at which the roll an anilox roller having a cell pattern on its surface, and the means for wetting the roller is a chambered doctor blade.
- the roller is an anilox roller, as in flexographic printing machines is used as an inking roller.
- anilox rollers have on their Surface a fine cell grid on and can therefore be controlled in Moisten the method with the help of a chamber doctor blade.
- These anilox rolls and the associated chamber doctor blades can be identical to the anilox rollers and Chamber knives, which are present in every inking unit of a flexographic printing machine are. In this way, the dedusting can be in cheaper Realize manner with standard components.
- the apparatus according to the invention can serve for dedusting Anilox roller be actively driven.
- the roll is a hollow roll and / or has a relatively small diameter, however, its moment of inertia can be so small that it is possible to let the roller passively pass only.
- the slip can, for example by the braking effect is achieved, which is inevitable when doctoring the roll surface occurs.
- the liquid used to wet the roller may be Water, the optional suitable additives, eg. As surfactants may be added to improve the adhesion effect and / or the removal of the To facilitate dust from the roll surface.
- FIG. 1 shows a counter-pressure cylinder 10 of a flexographic printing machine, which is produced by the printing substrate 12, for example a paper web, is looped around.
- the printing substrate 12 for example a paper web
- Farther one of several inking units 14 is shown at the periphery of the impression cylinder 10 are arranged and in each case a pressure cylinder 16, a Application roller 18 and a chamber doctor blade 20 for coloring the applicator roll include.
- the printing material 12 Before the printing material 12 reaches the impression cylinder 10, it runs over a dedusting device 22, which in Figure 1 for clarity is shown exaggeratedly large.
- This dedusting device 22 has a Roll 24 up.
- the printing material 12 runs with slight deflection over the peripheral surface the roller 24, whose peripheral speed approximately with the Web speed of the substrate matches. Because the tension the printing material is controlled in a known manner, the printing material runs with Controlled pressure force on the roller 24.
- the roller 24 is an anilox roller corresponding to the anilox roller 18, which has a fine grid of wells 26 on its surface, that exaggerated in Figure 1 on a part of the circumference of this roller is.
- a known chamber doctor blade 28 At the periphery of the roller 24 is opposite to the substrate 12 Side employed a known chamber doctor blade 28, but here not for coloring, but for wetting the roller 24 is used with water.
- the surface of the roller 24 passes through the chambered doctor blade 28 small amounts of water in the wells 26 retained so that the roller 24th is moistened in a controlled manner. The so moistened roller surface Then comes with the substrate 12 in contact, so that the s.den printing material Adhesive dust due to the greater adhesion of the moist Roller 24 is transferred to the roll surface.
- a doctor blade 30 In the direction of rotation behind the contact zone between the substrate 12th and the roller 24 is arranged on the circumference of the roller 24, a doctor blade 30, by means of which the dust adhering to the roll surface is scraped off or scraped off becomes. The thus removed from the roller 24 dust falls into a drip tray 32nd
- the chamber doctor blade 28 is continuously connected via an inlet 34 and a return 36 or rinsed with pure water at intervals.
- the inlet 34 is formed as an elongated nozzle, which is within the doctoring chamber widened to a slot die and directed to the peripheral surface of the roller 24 is, so that the roller 24 across the entire width with a leaving the nozzle Water jet is washed.
- the removal can the dust particles from the roller 24 alone with the help of the chamber doctor blade 28 are effected, so that can be dispensed with the doctor blade 30.
- FIG. 2 shows a dedusting device 38, which is similar to the dedusting device 22 according to FIG. 1, an anilox roller 24 and a chamber doctor blade 28 has.
- the printing substrate 12 runs over here with slight deflection a platen roller 40 which forms a nip with the roller 24. Of the Pressure in this nip is adjustable in a known manner.
- the roller 24 rotates counterclockwise, and the substrate runs from bottom to top through the nip. In turn is in ration direction behind the contact zone between the substrate 12 and the roller 24, a doctor blade 30 is arranged, with which the Dust is removed from the roll surface.
- Supporting here is one Suction nozzle 42 is provided, which by means of the doctor blade 30 from the roll surface vacuuming detached dust. Due to the moistening of the roller 24, a "cake" of wet dust can accumulate on the doctor blade 30, which is then removed by means of the suction nozzle 42.
- the suction nozzle 42 may be a Be slot die. Optionally, however, it may also be a nozzle tube act, which is moved in the axial direction of the roller 24 back and forth, so that the Dust, which collects in front of the cutting edge of the doctor blade 30, periodically sucked becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Advancing Webs (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Description
- Figur 1
- eine schematische Darstellung der wesentlichen Teile einer Flexodruckmaschine mit einer Vorrichtung zur Entstaubung des Bedruckstoffes; und
- Figur 2
- eine schematische Darstellung einer abgewandelten Ausführungsform der Entstaubungsvorrichtung.
Claims (4)
- Vorrichtung zur Entstaubung von Bedruckstoff (12) in einer Druckmaschine, mit einer Walze (24), die mit oder ohne Schlupf am Bedruckstoff (12) abrollt, einer Einrichtung (28) zum Befeuchten der Oberfläche der Walze (24) und einer am Umfang dieser Walze angeordneten Einrichtung (30; 42) zum fortlaufenden Entfernen des Staubes von der Walzenoberfläche, dadurch gekennzeichnet, daß die Walze (24) eine Rasterwalze ist, die an ihrer Oberfläche ein Näpfchenraster (26) aufweist, und daß die Einrichtung zum Befeuchten der Walze (24) eine Kammerrakel (28) ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung zum fortlaufenden Entfernen des Staubes von der Walzenoberfläche ein Rakelmesser (30) ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einrichtung zum fortlaufenden Entfernen des Staubes von der Walzenoberfläche eine Saugdüse (42) aufweist.
- Flexodruckmaschine, gekennzeichnet durch eine Vorrichtung nach einem der Ansprüche 1 bis 3.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59904230T DE59904230D1 (de) | 1999-11-10 | 1999-11-10 | Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff |
| EP99122353A EP1106353B1 (de) | 1999-11-10 | 1999-11-10 | Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff |
| ES99122353T ES2190166T3 (es) | 1999-11-10 | 1999-11-10 | Procedimiento y dispositivo para el desempolvado de un soporte de impresion. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99122353A EP1106353B1 (de) | 1999-11-10 | 1999-11-10 | Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1106353A1 EP1106353A1 (de) | 2001-06-13 |
| EP1106353B1 true EP1106353B1 (de) | 2003-02-05 |
Family
ID=8239361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99122353A Expired - Lifetime EP1106353B1 (de) | 1999-11-10 | 1999-11-10 | Verfahren und Vorrichtung zur Entstaubung von Bedruckstoff |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1106353B1 (de) |
| DE (1) | DE59904230D1 (de) |
| ES (1) | ES2190166T3 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478955A (zh) * | 2021-08-02 | 2021-10-08 | 元亨利云印刷科技(上海)有限公司 | 一种多功能印刷加工系统 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3740044A1 (de) * | 1987-11-26 | 1989-06-08 | Kotterer Grafotec | Vorrichtung zum abnehmen von verunreinigungen von einem bedruckstoff |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50672C (de) * | G. DUNCAN, 30 Fairfield Crescent, Liverpool, und i J. SALMON, Blackfriars Bridge, Manchester | Apparat zur Bogenreinigung | ||
| DE243851C (de) * | ||||
| DE237919C (de) * | ||||
| DE2705477A1 (de) * | 1977-02-10 | 1978-08-17 | Larry G Boyd | Vorrichtung zum entfernen von feststoffteilchen von dem zu bedruckenden material einer druckmaschine |
| NL7903999A (nl) * | 1979-05-21 | 1980-11-25 | Stork Brabant Bv | Reinigingswerkwijze, alsmede stofafname inrichting ten behoeve van drukmachines. |
| DE8813228U1 (de) * | 1988-10-21 | 1988-12-22 | Grafotec Kotterer GmbH, 8901 Diedorf | Vorrichtung zum Abnehmen von Verunreinigungen von einem Bedruckstoff |
| JP2970987B2 (ja) * | 1994-03-18 | 1999-11-02 | 株式会社コムテック | 印刷用紙の紙面拭き取り装置 |
| DE19903887A1 (de) * | 1998-02-23 | 1999-08-26 | Heidelberger Druckmasch Ag | Verfahren und Bogenrotationsdruckmaschine zum Beidseitigen Bedrucken eines Bedruckstoffbogens |
-
1999
- 1999-11-10 DE DE59904230T patent/DE59904230D1/de not_active Expired - Fee Related
- 1999-11-10 EP EP99122353A patent/EP1106353B1/de not_active Expired - Lifetime
- 1999-11-10 ES ES99122353T patent/ES2190166T3/es not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3740044A1 (de) * | 1987-11-26 | 1989-06-08 | Kotterer Grafotec | Vorrichtung zum abnehmen von verunreinigungen von einem bedruckstoff |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59904230D1 (de) | 2003-03-13 |
| EP1106353A1 (de) | 2001-06-13 |
| ES2190166T3 (es) | 2003-07-16 |
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