EP0778912B1 - Vorrichtung zum beidseitigen beschichten einer materialbahn - Google Patents
Vorrichtung zum beidseitigen beschichten einer materialbahn Download PDFInfo
- Publication number
- EP0778912B1 EP0778912B1 EP95925833A EP95925833A EP0778912B1 EP 0778912 B1 EP0778912 B1 EP 0778912B1 EP 95925833 A EP95925833 A EP 95925833A EP 95925833 A EP95925833 A EP 95925833A EP 0778912 B1 EP0778912 B1 EP 0778912B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- web
- roller
- nip
- rollers
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
Definitions
- the invention relates to a device for coating a material web on both sides, in particular a paper or cardboard web, according to the preamble of Claim 1.
- Pigment dispersions on paper or cardboard webs are devices with two axially parallel side by side in a frame rotatably mounted press rolls known between which a press nip is formed through which the paper or cardboard web to be led.
- An application and metering system is arranged on each of the press rolls, that first applies a metered film of coating material to its jacket, which is then transferred to the web in the press nip.
- one of the two press rollers can be moved circumferentially against the other stored in order to be able to open the press nip for drawing in a new web.
- From DE-A 37 01 670 is an applicator with an applicator roller and one Track leading counter roll known for single-sided coating or Humidification of running webs can be used.
- On the applicator roller is a pre-metering roller for transferring coating compound or dampening liquid arranged, each on the between the applicator roller and counter roller guided train will be handed over.
- the counter roller is on a swivel lever adjustable parallel to the web running direction, so that the wrap angle of the Application roller and the counter roller when coating differently than when moistening can be adjusted.
- the pulling behavior of the web from the press rolls is not only the above described features of the coating device, but also of process parameters such as the order quantity and the physical parameters of the web and of the coating material depends crucially in the known devices when changing raw materials (web and / or coating material) unstable conditions when withdrawing from the press rolls with the above described negative effects occur. So the path can be unstable if, after a grade change, with the unrolled press roller a coating material with considerably greater cohesive and adhesive forces is applied, due to which the web is local or completely untwisted Press roller is entrained.
- the invention has for its object a generic coating device to improve so that even coating changing web and / or coating materials can be achieved.
- the invention offers the possibility of using a wide variety of web and coating materials a stable web take-off from the press rolls by changing to be able to adjust the wrapping ratio on the press rolls.
- Figure 1 shows a side view of a coating device in which the press rolls are set so that the web one of the two press rollers on the discharge side slightly wraps around.
- Figure 2 shows the same device in a position in which by adjusting a Press roller is slightly wrapped around the other press roller on the discharge side.
- the coating device shown in the drawing is in a paper machine integrated. It consists of two axially parallel to each other in a frame 1 rotatable stored press rolls 2, 3, one of which (press roll 2) stationary, the other (Press roll 3) is mounted with its circumference movable against the circumference of the first press roll 2.
- press roll 2 stationary
- Press roll 3 is mounted with its circumference movable against the circumference of the first press roll 2.
- the present example is the press roller 3 between two lateral pivot levers 4 suspended by a piston-cylinder unit 5 about a pivot axis 6 in Direction to the press roller 2 and pivoted away from this in the frame 1 are.
- the press rolls 2, 3 are rubberized on their outer surface. When swiveling the press roll 3 against the press roll 2 forms a press nip 7, which the to be coated Paper web 8 is fed from above by a guide roller 9.
- Each application and metering system 10, 11 preferably has one respective press roller 2, 3 open application chamber, in the coating material is fed under pressure.
- Each order chamber of completed a metering element that applied to the press roll 2, 3 Strips the coating material down to the desired film thickness.
- a dosing element preference is given to a doctor rod with structured, ie elevations and depressions surface with which volumetric dosing can be used. Such doctor rods are known. You assign z. B. circumferential grooves on by Wrapping can be generated with a wire or by surface processing. Alternatively, doctor rods with a smooth surface, Scraper knives or scraper bars are used.
- the metered coating material applied to the outer surfaces of the press rolls 2, 3 is transferred to web 8 in press nip 7. After going through of the press nip 7, the web 8 coated on both sides becomes non-contact working guide element 12 fed to a dryer, not shown.
- the adjustability is effected in that the pivotable Press roll 3 is additionally mounted in a height-adjustable manner.
- access the in a linear guide swivel bearing 13 a piston-cylinder unit supported on the ground 14 with which the swivel lever 4 can be adjusted up and down leaves.
- the press roller 3 is on an adjustable path against the stationary Press roller 2 can be swiveled. Raising the pivot lever 4 causes the position of the press nip 7 moves upwards.
- the changed position of the Press nip leads to a wrapping of the press roll 2 on the outlet side of the Lane 8 ( Figure 2).
- lowering the pivot lever 4 leads to a Displacement of the press nip 7 downwards and therefore to the fact that the press roll 3 on the outlet side is partially wrapped in the web 8 ( Figure 1).
- the maximum stroke of the piston-cylinder unit 14 and the length of the pivot levers 4 are chosen so that when the piston is half extended, the path is straight without Wrapping a press roll 2, 3 passes through the press nip 7.
- the stroke length of the Piston-cylinder unit 14 is dimensioned so that when the piston is retracted Press roller 3 is lowered so far that the connecting line between the two Axes of rotation of the press rolls 2, 3 about the axis of rotation of the press roll 2 by 5 ° - 10 ° pivots ( Figure 1). In this position, the swivel-mounted press roll 3 slightly wrapped around by the web 8 on the outlet side of the press nip 7.
Landscapes
- Coating Apparatus (AREA)
- Paper (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
Claims (4)
- Vorrichtung zum beidseitigen Beschichten einer Materialbahn (8), insbesondere einer Papier- oder Kartonbahn,
mit zwei achsparallel nebeneinander in einem Gestell (1) drehbar gelagerten Presswalzen (2, 3), von denen eine Presswalze (3) mit ihrem Umfang gegen den Umfang der anderen Presswalze (2) bewegbar gelagert ist, um einen Preßspalt (7) zu bilden, durch den die Materialbahn (8) geführt wird, und mit einem Auftrag- und Dosiersystem (10, 11) für jede Presswalze (2, 3) die jeweils ausserhalb des Bereichs des Preßspalts (7) angeordnet sind, wobei eine der beiden Presswalzen (3) mit einer Komponente in Richtung der gemeinsamen Tangente an die beiden Presswalzen (2, 3) im Preßspalt (7) verstellbar gelagert ist, um die Position des Preßspalts (7) zu verschieben. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine der beiden Presswalzen (3) linear höhenverstellbar gelagert ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Presswalze (2) ortsfest gelagert, die andere Presswalze (3) umfänglich auf verstellbaren Bahnen mit ihrem Umfang gegen den Umfang der ortsfest gelagerten Presswalze (2) anschwenkbar gelagert ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Verstellweg der Verstellbewegung so ausgelegt ist, daß die Verbindungslinie zwischen den beiden Drehachsen der Presswalzen (2, 3) um eine der Drehachsen in beide Richtungen um 5° - 10° schwenkbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4431202A DE4431202A1 (de) | 1994-09-02 | 1994-09-02 | Vorrichtung zum beidseitigen Beschichten einer Materialbahn |
DE4431202 | 1994-09-02 | ||
PCT/EP1995/002602 WO1996007791A1 (de) | 1994-09-02 | 1995-07-05 | Vorrichtung zum beidseitigen beschichten einer materialbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0778912A1 EP0778912A1 (de) | 1997-06-18 |
EP0778912B1 true EP0778912B1 (de) | 2000-02-09 |
Family
ID=6527203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95925833A Expired - Lifetime EP0778912B1 (de) | 1994-09-02 | 1995-07-05 | Vorrichtung zum beidseitigen beschichten einer materialbahn |
Country Status (7)
Country | Link |
---|---|
US (1) | US5803969A (de) |
EP (1) | EP0778912B1 (de) |
AT (1) | ATE189724T1 (de) |
DE (2) | DE4431202A1 (de) |
ES (1) | ES2143639T3 (de) |
FI (1) | FI111399B (de) |
WO (1) | WO1996007791A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI111134B (fi) * | 1997-03-13 | 2003-06-13 | Metso Paper Inc | Menetelmä ja sovitelma filminsiirtopuristimen telojen värähtelyjen estämiseksi |
DE10012465A1 (de) | 2000-03-15 | 2001-10-11 | Jagenberg Papiertech Gmbh | Vorrichtung zum Beschichten einer Materialbahn, insbesondere einer Papier- oder Kartonbahn |
DE50214376D1 (de) * | 2001-05-23 | 2010-05-27 | Voith Patent Gmbh | Anordnung zum Andrücken zweier aneinander annäherbarer achsparalleler Walzen in einer Einrichtung zur Herstellung oder/und Behandlung einer Materialbahn |
DE102004039162B4 (de) * | 2004-08-11 | 2013-03-14 | Horst Sprenger Gmbh | Vorrichtung zum Beschichten von Papier- und Kartonbahnen |
CA2648454C (en) * | 2008-01-02 | 2016-06-28 | Dunkirk Metal Products, Inc. | High efficiency wood or biomass boiler |
TW201446474A (zh) * | 2013-06-07 | 2014-12-16 | Hon Hai Prec Ind Co Ltd | 導光板製造裝置 |
DE202014104981U1 (de) | 2014-10-20 | 2014-11-05 | Valmet Technologies, Inc. | Anordnung zum nachträglichen Ausrüsten einer Faserbahnmaschine mit einer Auftragspartie für ein Behandlungsmedium |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1282265A (en) * | 1970-01-19 | 1972-07-19 | Gaf Corp | Production of liquid films |
DE3540402C2 (de) * | 1984-11-07 | 1995-05-11 | Voith Gmbh J M | Einrichtung zur Beschichtung laufender Warenbahnen |
DE3440634C2 (de) * | 1984-11-07 | 1986-09-11 | J.M. Voith Gmbh, 7920 Heidenheim | Einrichtung zur beidseitigen Beschichtung laufender Warenbahnen |
DE3701670A1 (de) * | 1987-01-22 | 1988-08-04 | Voith Gmbh J M | Auftragswerk zur beschichtung und befeuchtung laufender warenbahnen |
DE9100291U1 (de) * | 1991-01-11 | 1991-04-04 | Jagenberg AG, 40476 Düsseldorf | Vorrichtung zum beidseitigen Beschichten einer Materialbahn |
FI93884C (fi) * | 1992-04-10 | 1995-06-12 | Valmet Paper Machinery Inc | Applikointipalkki liimapuristimessa |
DE4218596C2 (de) * | 1992-06-05 | 1996-05-02 | Voith Gmbh J M | Streicheinrichtung zum indirekten Auftragen von Streichfarbe auf eine Papier- oder Kartonbahn |
CH690764A5 (de) * | 1993-01-19 | 2001-01-15 | Hans Brunner | Traggestell zur Manipulation von Säcken für landwirtschaftliche Erzeugnisse, insbesondere für Saatkartoffeln |
FI93044C (fi) * | 1993-01-22 | 1995-02-10 | Valmet Paper Machinery Inc | Liimapuristin |
DE4312877A1 (de) * | 1993-04-20 | 1994-10-27 | Heidelberger Druckmasch Ag | Umschaltbare Lackversorgung an Veredelungseinheiten in Rotationsdruckmaschinen |
-
1994
- 1994-09-02 DE DE4431202A patent/DE4431202A1/de not_active Withdrawn
-
1995
- 1995-07-05 EP EP95925833A patent/EP0778912B1/de not_active Expired - Lifetime
- 1995-07-05 AT AT95925833T patent/ATE189724T1/de not_active IP Right Cessation
- 1995-07-05 DE DE59507794T patent/DE59507794D1/de not_active Expired - Fee Related
- 1995-07-05 ES ES95925833T patent/ES2143639T3/es not_active Expired - Lifetime
- 1995-07-05 US US08/809,002 patent/US5803969A/en not_active Expired - Fee Related
- 1995-07-05 WO PCT/EP1995/002602 patent/WO1996007791A1/de active IP Right Grant
-
1997
- 1997-02-28 FI FI970860A patent/FI111399B/fi active
Also Published As
Publication number | Publication date |
---|---|
WO1996007791A1 (de) | 1996-03-14 |
FI111399B (fi) | 2003-07-15 |
DE59507794D1 (de) | 2000-03-16 |
US5803969A (en) | 1998-09-08 |
FI970860A0 (fi) | 1997-02-28 |
DE4431202A1 (de) | 1996-03-07 |
FI970860A (fi) | 1997-02-28 |
ES2143639T3 (es) | 2000-05-16 |
EP0778912A1 (de) | 1997-06-18 |
ATE189724T1 (de) | 2000-02-15 |
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