EP0352440A2 - Dispositif pour l'enduction en continu d'un matériau en bande passant sur un contre-rouleau - Google Patents

Dispositif pour l'enduction en continu d'un matériau en bande passant sur un contre-rouleau Download PDF

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Publication number
EP0352440A2
EP0352440A2 EP89109895A EP89109895A EP0352440A2 EP 0352440 A2 EP0352440 A2 EP 0352440A2 EP 89109895 A EP89109895 A EP 89109895A EP 89109895 A EP89109895 A EP 89109895A EP 0352440 A2 EP0352440 A2 EP 0352440A2
Authority
EP
European Patent Office
Prior art keywords
scraper
bar
knife
foot
angle
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.)
Granted
Application number
EP89109895A
Other languages
German (de)
English (en)
Other versions
EP0352440A3 (fr
EP0352440B1 (fr
Inventor
Herbert Sommer
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.)
Jagenberg AG
Original Assignee
Jagenberg 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.)
Filing date
Publication date
Application filed by Jagenberg AG filed Critical Jagenberg AG
Publication of EP0352440A2 publication Critical patent/EP0352440A2/fr
Publication of EP0352440A3 publication Critical patent/EP0352440A3/fr
Application granted granted Critical
Publication of EP0352440B1 publication Critical patent/EP0352440B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
    • B05C11/042—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades allowing local positioning, loading or deforming along the blades

Definitions

  • the invention relates to a device for the continuous coating of a web of material guided around a counter roller, in particular a web of paper or cardboard, according to the preamble of patent claim 1.
  • the contact pressure of the scraper knife against the counter roller required to set a desired coating weight is generated by an elastic deformation of the scraper knife between its foot clamped in the scraper knife and its tip, the change in the blade angle due to the deformation being kept as small as possible.
  • a very advantageous coating device in this regard is described in DE-PS 28 25 907.
  • the deformation is achieved by the in a Clamping bar clamped scraper blade is moved linearly, the scraper knife being supported by a support bar which remains unchanged when the clamping bar is moved.
  • relatively small movements of the clamping bar produce large changes in the contact pressure, so that the influence on the blade angle is so small that practically without exception there are no qualitative disadvantages.
  • the S-shaped deformation of the scraper knife achieves very good transverse stability of the knife blade even with the slightest contact forces, which is of crucial importance for the quality of the line profiles transverse to the running direction of the material web.
  • the invention is therefore based on the object of providing a generic coating device in which the constancy of the blade angle is further improved when the bias voltage changes.
  • the material web 1 to be coated e.g. a paper web, in the direction of the arrow around a counter roller 2.
  • the coating material applied in excess from a coating unit (not shown) to the material web 1 is metered to the desired coat weight by the metering system described in more detail below.
  • the side frame 5, together with the scraper bar 4 can be pivoted away about the axis 7 from the counter roller 2 for cleaning or for changing a scraper knife.
  • a clamping bar 8 is integrated, which can be adjusted in a straight line by means of a screw jack 9 - in the pivoted position approximately in the horizontal direction.
  • the scraper knife 3 is clamped with its foot in the clamping bar 8, an angle of 70 ° -80 °, preferably approximately 75 °, being established between the scraper knife 3 and the direction of movement of the clamping bar 8.
  • a support bar 10 is fastened to the scraper bar 4, against which the scraper knife 3 rests and which can be adjusted to a specific transverse profile with adjusting screws 11 arranged at regular intervals over the working width.
  • the pivoting of the scraper bar 4 for setting a specific bar angle is carried out by means of a screw jack 12.
  • the straight adjustment of the clamping bar 8 is directly mechanically coupled to the bar angle setting.
  • a second spindle lifting mechanism 13 is used, which sits above the first lifting mechanism 12 on the rotatable spindle 14.
  • the axial adjustment of the spindle 14 articulated on a lever-like extension 15 is carried out with worm wheels 16 and 17, respectively, the worm wheel 16 of the lower spindle lifting mechanism 12 being connected to a servomotor.
  • the worm wheel 17 of the upper screw jack is coupled with a fixed transmission ratio to the driven worm wheel 18 of the screw jack 9 for the clamping bar adjustment.
  • the coupling is carried out with toothed belt 19, and the use of cardan shafts or a bevel gear is also possible.
  • the direct mechanical coupling of the clamping beam adjustment with the beam angle setting has the effect that when the clamping beam 8 is adjusted with the worm wheel 18, a proportional change in the beam angle with the spindle 14 corresponding to the selected transmission ratio takes place.
  • the bar angle is adjusted by an electric motor as a function of the adjustment of the clamping bar 8.
  • a microprocessor 21 is connected to a pulse counter 19, with which the servomotor 20 of the spindle lifting mechanism 9 is controlled for the clamping beam adjustment, which controls the required correction of the beam angle depending on the clamping beam adjustment via the drive 22 of the spindle lifting mechanism 12.
  • a corresponding correction of the bar angle is assigned to each position of the base point of the scraper knife 3, which compensates for a change in the blade angle due to the base point adjustment.
  • This more complex electronic solution compared to the embodiment according to FIG. 1 has the advantage that time-dependent changes, e.g. the wear of the doctor blade 3, and other parameters that influence the blade angle - e.g. elastic deformation of the roll surface, support length, average beam angle - can be taken into account as parameters in the calculation of the beam angle correction and can be varied if necessary.
  • the doctor bar 4 is pivoted in the direction of the counter roller 2 until the tip of the doctor knife 3 lies against the material web 1.
  • the desired beam angle is then set with the screw jack 12.
  • the clamping bar 8 is now moved in a straight line away from the counter roller 2 with the spindle lifting mechanism 9. Since the support bar 10 remains unchanged during this movement, the scraper knife 3 curves in an S-shape and its tip is pressed against the material web 2. Due to the deformation, a slight change in the blade angle occurs in the area between the support bar 10 and the metering line 6.
  • a deviation of 15 ° compared to a doctor blade 3 clamped perpendicularly against the adjustment direction of the clamping bar 8 has the effect that the change in the blade angle due to the deformation is approximately proportional to the usable clamping bar displacement. It can therefore be compensated for by a proportional change in the beam angle. In the embodiment according to FIG. 1, this is carried out with a simple mechanical coupling.
  • the pulse counter 19 reports a corresponding number of travel pulses to the microprocessor 21, which at the same time controls the drive 22 of the screw jack 12 according to a previously defined correction curve and thus likewise the scraper bar 4 by the required angle correction pivots.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP89109895A 1988-07-29 1989-06-01 Dispositif pour l'enduction en continu d'un matériau en bande passant sur un contre-rouleau Expired - Lifetime EP0352440B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825816 1988-07-29
DE3825816A DE3825816A1 (de) 1988-07-29 1988-07-29 Vorrichtung zum kontinuierlichen beschichten einer um eine gegenwalze gefuehrten materialbahn

Publications (3)

Publication Number Publication Date
EP0352440A2 true EP0352440A2 (fr) 1990-01-31
EP0352440A3 EP0352440A3 (fr) 1991-05-08
EP0352440B1 EP0352440B1 (fr) 1992-10-28

Family

ID=6359846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109895A Expired - Lifetime EP0352440B1 (fr) 1988-07-29 1989-06-01 Dispositif pour l'enduction en continu d'un matériau en bande passant sur un contre-rouleau

Country Status (5)

Country Link
US (1) US4966093A (fr)
EP (1) EP0352440B1 (fr)
AT (1) ATE81803T1 (fr)
DE (2) DE3825816A1 (fr)
FI (1) FI100312B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994004348A1 (fr) * 1992-08-14 1994-03-03 James River Corporation Of Virginia Procede permettant d'accroitre la charge d'une racle de crepage et de maintenir l'angle de la racle
US5556467A (en) * 1993-04-16 1996-09-17 Valmet Corporation Assembly for loading a doctor blade

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927329A1 (de) * 1989-08-18 1991-02-21 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
FI90319C (fi) * 1989-10-09 1994-01-25 Valmet Paper Machinery Inc Menetelmä paperi- tai kartonkiradan kosteusprofiilin säätämiseksi liimapuristimessa ja menetelmän toteuttava filmiliimapuristin
DE3934986A1 (de) * 1989-10-20 1991-04-25 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
DE3937322A1 (de) * 1989-11-09 1991-05-16 Zanders Feinpapiere Ag Verfahren zum betrieb einer streicheinrichtung
SE9102783L (sv) * 1991-09-25 1992-12-21 Btg Kaelle Inventing Ab Anordning och foerfarande foer bladbestrykning av en loepande bana
FI91298C (fi) * 1992-04-10 1994-06-10 Valmet Paper Machinery Inc Menetelmä materiaalirainan päällystämiseksi
US5242498A (en) * 1992-08-04 1993-09-07 The Kohler Coating Machinery Corporation Adjustable blade coater
US6077352A (en) * 1992-09-02 2000-06-20 Consolidated Papers, Inc. Mounting assembly for a single backing roll coating station
DE4418464C2 (de) * 1994-05-27 1995-07-06 Voith Ag J M Klingenhalterung
DE19619250A1 (de) * 1996-05-13 1997-11-20 Voith Sulzer Papiermasch Gmbh Vorrichtung und Verfahren zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE19734718A1 (de) * 1997-08-11 1999-02-18 Voith Sulzer Papiermasch Gmbh Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19812929A1 (de) * 1998-03-24 1999-09-30 Voith Sulzer Papiertech Patent Vorrichtung zum Egalisieren oder/und Dosieren einer auf einen Untergrund aufgebrachten Schicht eines flüssigen oder pastösen Auftragsmediums
CN104069992B (zh) * 2014-07-04 2016-11-02 深圳市泰仁恩科技有限公司 一种涂布刮刀的组装结构
CN110976134B (zh) * 2019-11-17 2020-11-27 杨滋垚 一种复合材料纺织布制造设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113890A (en) * 1961-06-26 1963-12-10 Kimberly Clark Co Apparatus for smoothing coating materials on a paper web
DE3017274C2 (de) * 1980-05-06 1985-07-18 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Streichen von Papierbahnen
DE3236755C2 (fr) * 1982-10-05 1987-08-13 J.M. Voith Gmbh, 7920 Heidenheim, De

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128207A (en) * 1961-09-07 1964-04-07 Beloit Iron Works Trailing blade coater blade loading mechanism
US4153865A (en) * 1977-06-27 1979-05-08 The Bendix Corporation Dynamically compensated servo monitor
DE2825907B2 (de) * 1978-06-13 1981-02-26 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Aufbringen einer Beschichtung auf eine Materialbahn
DE2845036A1 (de) * 1978-10-16 1980-04-17 Jagenberg Werke Ag Vorrichtung zum kontinuierlichen gleichzeitigen aufbringen von beschichtungen konstanter dicken auf beide seiten einer materialbahn
DE2913421C3 (de) * 1979-04-04 1982-04-29 J.M. Voith Gmbh, 7920 Heidenheim Verfahren und Vorrichtung zum Abstreifen von überschüssiger Streichmasse von einer laufenden Bahn
DE3311999A1 (de) * 1983-04-02 1984-10-11 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung zur beschichtung laufender warenbahnen
DE3313972A1 (de) * 1983-04-18 1984-10-18 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum ein- und vorspannen eines elastischen streichmessers
DE3513063A1 (de) * 1985-04-12 1986-10-16 Jagenberg AG, 4000 Düsseldorf Streicheinrichtung zur beschichtung von entlang einer gegenwalze gefuehrten warenbahn, insbesondere papierbahnen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113890A (en) * 1961-06-26 1963-12-10 Kimberly Clark Co Apparatus for smoothing coating materials on a paper web
DE3017274C2 (de) * 1980-05-06 1985-07-18 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Streichen von Papierbahnen
DE3236755C2 (fr) * 1982-10-05 1987-08-13 J.M. Voith Gmbh, 7920 Heidenheim, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994004348A1 (fr) * 1992-08-14 1994-03-03 James River Corporation Of Virginia Procede permettant d'accroitre la charge d'une racle de crepage et de maintenir l'angle de la racle
US5556467A (en) * 1993-04-16 1996-09-17 Valmet Corporation Assembly for loading a doctor blade

Also Published As

Publication number Publication date
FI893620A (fi) 1990-01-30
FI100312B (fi) 1997-11-14
FI893620A0 (fi) 1989-07-28
US4966093A (en) 1990-10-30
EP0352440A3 (fr) 1991-05-08
DE3825816A1 (de) 1990-02-01
DE58902546D1 (de) 1992-12-03
ATE81803T1 (de) 1992-11-15
EP0352440B1 (fr) 1992-10-28

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