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WO2018153429A1 - Dispositif de coulée à fente - Google Patents

Dispositif de coulée à fente Download PDF

Info

Publication number
WO2018153429A1
WO2018153429A1 PCT/EP2017/053897 EP2017053897W WO2018153429A1 WO 2018153429 A1 WO2018153429 A1 WO 2018153429A1 EP 2017053897 W EP2017053897 W EP 2017053897W WO 2018153429 A1 WO2018153429 A1 WO 2018153429A1
Authority
WO
WIPO (PCT)
Prior art keywords
coater
actuating element
schlitzgießer
slot
coating
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.)
Ceased
Application number
PCT/EP2017/053897
Other languages
German (de)
English (en)
Inventor
Alexander Pankratz
Klaus Peter Crone
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.)
Coatema Coating Machinery GmbH
Original Assignee
Coatema Coating Machinery GmbH
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 Coatema Coating Machinery GmbH filed Critical Coatema Coating Machinery GmbH
Priority to ES17706726T priority Critical patent/ES2857126T3/es
Priority to DK17706726.1T priority patent/DK3585525T3/da
Priority to EP17706726.1A priority patent/EP3585525B1/fr
Priority to PCT/EP2017/053897 priority patent/WO2018153429A1/fr
Priority to PL17706726T priority patent/PL3585525T3/pl
Publication of WO2018153429A1 publication Critical patent/WO2018153429A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0262—Coating heads with slot-shaped outlet adjustable in width, i.e. having lips movable relative to each other in order to modify the slot width, e.g. to close it

Definitions

  • the invention relates to a Schlitzg screener, preferably for the production of thin and homogeneous coatings on sheet materials, particularly preferably for intermittent coating, wherein two solid blocks are arranged as mutual G demerbacken at a small distance from each other, and wherein the free ends of the G manerbacken each formed as a pouring lip are and between them form the G confuseerspalt, through which the material emerges for coating and reaches the web to be coated.
  • slit casters which are also referred to as slot die or English “slot Die", known as tools for producing usually thinner (typically 0.1 to 100 ⁇ ) and homogeneous coatings on web-like materials.
  • a Schlitzg fabric essentially consists of two solid blocks, which are arranged at a small distance from each other.
  • the distance is typically 10 to 200 ⁇ , in special cases, up to a few mm.
  • a distribution chamber (English "manifold") is recessed in a block, which is filled by means of an opening with the coating liquid. Under pressure then the coating liquid is pushed out through the slot down and passes through the slot on the web to be coated.
  • the layer thickness on the web is determined by the pump power, the web speed and coating width.
  • the pump can be switched on and off and possibly operated in the return, which in the case of an airless filled caster, the liquid flow in the entire foundry is started or stopped and even with a short-term return even a limited suction of coating liquid (suck back) possible is. Also can be achieved by a corresponding startup and shutdown of the slot caster interruption of the coating.
  • a diversion or a stop of the coating liquid can take place. With suitable timing, such methods still function satisfactorily when the viscosity of the coating liquid is sufficiently high, such as, for example. B. in the intermittent coating with battery pastes.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a slot caster with which clean edges can be produced even with a low viscosity of the coating liquid with an extremely short reaction time.
  • both foundry jaws each be weakened by a slot-shaped recess in each case at a small distance in front of the corresponding pouring lip, that each lying before this recess, pouring lip-side portions of the two G manerbacken by appropriately provided actuators each slightly by a small angular range are hinged.
  • the deflection of the individual G manerbacke can be reduced to half compared to a configuration in which only a G manerbacke is partially hinged. This also reduces a lower material load, resulting in reduced fatigue.
  • the angular range by which the one foundry jaw or both foundry jaws can be folded together can amount to approximately 0.1 ° to 0.2 °.
  • the angular range by which the one foundry jaw or both casting jaws can be folded together can be configured such that a change in the distance between the pouring lips by approximately 30 ⁇ m to 80 ⁇ m, preferably approximately 50 ⁇ m, can be achieved.
  • At least one actuating element may comprise a motor drive, a pneumatic or hydraulic cylinder or an electromagnetic drive.
  • At least one actuating element may comprise a piezo drive.
  • at least one piezo drive can be designed to act via tie rods directly or indirectly acting on the pouring lip side portion of the corresponding pouring jaw in front of the corresponding recess.
  • the piezo drive can be designed such that it still has at least 60% power reserves at the maximum deflection required for the intended increase in volume of the casting gap.
  • the piezo drive can be designed such that the required deflection within a few milliseconds, preferably less than 100 ms, more preferably less than 10 ms, can be effected.
  • the effect can be effected by the at least one actuating element unfolding against the elastic restoring force of the material of the G manerbacke.
  • a control unit for controlling the opening and closing of the respective subarea of the at least one foundry jaw, preferably coordinated with the control of other process parameters, may be provided.
  • FIG. 1 shows a slot caster according to the invention in a typical application
  • FIG. 2 shows the object according to FIG. 1 in isolated representation
  • Fig. 3 shows the object of FIG. 2 in a schematic representation during a coating phase
  • Fig. 4 shows the object of Fig. 2 in a schematic representation during a coating break.
  • Fig. 1 shows a Schlitzg screener 1, which is preferably used for the production of thin and homogeneous coatings on web-like materials.
  • the slot caster 1 comprises two solid blocks as bilateral foundry jaws 2, 3, which are arranged at a small distance from each other.
  • the free ends of the foundry jaws 2, 3 are each formed as a pouring lip 4, 5 and form between them the casting gap 6, through which the material 7 emerges for coating and passes to the web 8 to be coated. This may, for example, be guided around a roller 9.
  • the pouring jaw 2 provided on the upper side in the Dar positions is weakened by a slot-shaped recess 10 at a small distance in front of the pouring lip such that the pouring lip-side portion 14 located in front of this recess 10 Gelloerbacke 2 by a correspondingly provided actuator 1 1 is slightly hinged by a small angle range.
  • the volume of the casting gap 6 along the entire casting gap 6 can be uniformly increased temporarily (cf., Fig. 4), so that the coating is interrupted and thus an intermittent coating is possible.
  • the actuating element 1 1 comprises a piezo drive 12, which is designed to act via tie rods 13 acting on the pouring lip side portion 14 of the pouring jaw 2 located in front of the corresponding recess 10.

Landscapes

  • Coating Apparatus (AREA)

Abstract

L'invention concerne un dispositif de coulée (1) à fente, de préférence pour la fabrication de revêtements minces et homogènes sur des matériaux en feuille continue, d'une manière particulièrement préférée pour un revêtement intermittent, deux blocs massifs étant, en tant que mâchoires de coulée (2, 3) bilatérales, disposés à une faible distance l'un de l'autre, et les extrémités libres des mâchoires de coulée se présentant chacune sous forme d'une lèvre de coulée (4, 5), et formant entre elles l'interstice de coulée (6), par lequel la matière sort pour effectuer le revêtement et arrive sur la feuille continue (8) à revêtir. De façon à pouvoir produire des arêtes propres même en présence d'une faible viscosité du liquide de revêtement, et moyennant un temps de réaction extrêmement court, le volume de l'interstice du dispositif de coulée doit pouvoir subir un agrandissement provisoire uniforme, grâce à au moins un élément d'actionnement prévu correspondant, au moins une mâchoire de coulée étant, à une faible distance en avant de la lèvre de coulée, affaiblie par un évidement en forme de fente, de telle sorte que la zone côté lèvre de coulée, se trouvant en avant de cet évidement, de la mâchoire de coulée peut être facilement rabattue, grâce à un élément d'actionnement prévu de manière correspondante, sur une petite plage angulaire.
PCT/EP2017/053897 2017-02-21 2017-02-21 Dispositif de coulée à fente Ceased WO2018153429A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES17706726T ES2857126T3 (es) 2017-02-21 2017-02-21 Matriz de ranura
DK17706726.1T DK3585525T3 (da) 2017-02-21 2017-02-21 Slidsstøbeindretning
EP17706726.1A EP3585525B1 (fr) 2017-02-21 2017-02-21 Dispositif de revetement à fente
PCT/EP2017/053897 WO2018153429A1 (fr) 2017-02-21 2017-02-21 Dispositif de coulée à fente
PL17706726T PL3585525T3 (pl) 2017-02-21 2017-02-21 Szczelinowa maszyna do powlekania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/053897 WO2018153429A1 (fr) 2017-02-21 2017-02-21 Dispositif de coulée à fente

Publications (1)

Publication Number Publication Date
WO2018153429A1 true WO2018153429A1 (fr) 2018-08-30

Family

ID=58108602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/053897 Ceased WO2018153429A1 (fr) 2017-02-21 2017-02-21 Dispositif de coulée à fente

Country Status (5)

Country Link
EP (1) EP3585525B1 (fr)
DK (1) DK3585525T3 (fr)
ES (1) ES2857126T3 (fr)
PL (1) PL3585525T3 (fr)
WO (1) WO2018153429A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06142591A (ja) * 1992-11-11 1994-05-24 Mitsubishi Heavy Ind Ltd 塗工液ノズル
US6001179A (en) * 1996-12-12 1999-12-14 Voith Sulzer Papiermaschinen Gmbh Coating medium applicator with guide surface
DE19855751A1 (de) * 1998-12-03 2000-06-08 Hoechst Trespaphan Gmbh Vorrichtung zur Spaltverstellung
EP1010472A2 (fr) * 1998-12-16 2000-06-21 Matsushita Electric Industrial Co., Ltd. Dispositif et procédé d'application de bandes de revêtement
DE10129250A1 (de) * 2000-12-16 2002-06-20 Klaschka Gmbh & Co Flüssigkeitsdüse zum breitflächigen Aufbringen einer Flüssigkeitsschicht auf eine Werkstückoberfläche sowie Verfahren zum Betreiben einer solchen
DE10358220A1 (de) * 2003-12-12 2005-07-07 Voith Paper Patent Gmbh Vorrichtung zum ein- oder beidseitigen Auftragen von flüssigem bis pastösem Auftragsmedium, insbesondere wässrige Pigmentsuspension, auf eine laufende Oberfläche
JP2006239664A (ja) * 2005-03-07 2006-09-14 Dainippon Printing Co Ltd ダイヘッド及びスリットギャップ調整方法
WO2012170713A1 (fr) * 2011-06-07 2012-12-13 3M Innovative Properties Company Réglage de position de filière à fente

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06142591A (ja) * 1992-11-11 1994-05-24 Mitsubishi Heavy Ind Ltd 塗工液ノズル
US6001179A (en) * 1996-12-12 1999-12-14 Voith Sulzer Papiermaschinen Gmbh Coating medium applicator with guide surface
DE19855751A1 (de) * 1998-12-03 2000-06-08 Hoechst Trespaphan Gmbh Vorrichtung zur Spaltverstellung
EP1010472A2 (fr) * 1998-12-16 2000-06-21 Matsushita Electric Industrial Co., Ltd. Dispositif et procédé d'application de bandes de revêtement
DE10129250A1 (de) * 2000-12-16 2002-06-20 Klaschka Gmbh & Co Flüssigkeitsdüse zum breitflächigen Aufbringen einer Flüssigkeitsschicht auf eine Werkstückoberfläche sowie Verfahren zum Betreiben einer solchen
DE10358220A1 (de) * 2003-12-12 2005-07-07 Voith Paper Patent Gmbh Vorrichtung zum ein- oder beidseitigen Auftragen von flüssigem bis pastösem Auftragsmedium, insbesondere wässrige Pigmentsuspension, auf eine laufende Oberfläche
JP2006239664A (ja) * 2005-03-07 2006-09-14 Dainippon Printing Co Ltd ダイヘッド及びスリットギャップ調整方法
WO2012170713A1 (fr) * 2011-06-07 2012-12-13 3M Innovative Properties Company Réglage de position de filière à fente

Also Published As

Publication number Publication date
DK3585525T3 (da) 2021-02-22
ES2857126T3 (es) 2021-09-28
EP3585525B1 (fr) 2020-12-09
EP3585525A1 (fr) 2020-01-01
PL3585525T3 (pl) 2021-07-19

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