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EP0920917B1 - Eléments de réglage pneumatiques, utilisés notamment dans un dispositif de revêtement de bandes de papier ou de carton pour régler le profil transversal du revêtement - Google Patents

Eléments de réglage pneumatiques, utilisés notamment dans un dispositif de revêtement de bandes de papier ou de carton pour régler le profil transversal du revêtement Download PDF

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Publication number
EP0920917B1
EP0920917B1 EP98118118A EP98118118A EP0920917B1 EP 0920917 B1 EP0920917 B1 EP 0920917B1 EP 98118118 A EP98118118 A EP 98118118A EP 98118118 A EP98118118 A EP 98118118A EP 0920917 B1 EP0920917 B1 EP 0920917B1
Authority
EP
European Patent Office
Prior art keywords
spring plates
spring
coating
compressed air
frame
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
Application number
EP98118118A
Other languages
German (de)
English (en)
Other versions
EP0920917A3 (fr
EP0920917A2 (fr
Inventor
Ingo Dr. Becker
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent 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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0920917A2 publication Critical patent/EP0920917A2/fr
Publication of EP0920917A3 publication Critical patent/EP0920917A3/fr
Application granted granted Critical
Publication of EP0920917B1 publication Critical patent/EP0920917B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05C5/0283—Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction 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
    • 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 pneumatically actuable actuator, in particular for Regulation of the cross-section in a device for coating paper or paper Board webs, and a coating device with actuators after the Invention.
  • the height of the remaining on the web weight can be on the contact pressure of the Set the doctor blade to the web, which is usually on the back of a supported in a flexible support bar is supported.
  • WO 93/17795 describes Such a blade coater, in which for setting a locally different Contact pressure of the doctor blade on the support bar a number of actuators attack.
  • Each actuator includes an axially displaceable by a holder Guided adjustment rod, which by means of an adjusting screw against the force of a Compression spring is axially displaceable.
  • From DE-OS 44 32 177 is a so-called free-jet nozzle applicator known, which has a slot nozzle formed by two lips, from which a free Jet of coating material is directed against the web or against a roll, which then transfers the film of coating material to the web.
  • a free Jet of coating material is directed against the web or against a roll, which then transfers the film of coating material to the web.
  • Setting a particular cross-section is one of the two lips of the slot by means of an adjusting zonewise in their distance to the other lip adjustable.
  • the adjustment includes a number of distributed over the working width arranged adjusting screws, which are biased by spring elements.
  • the adjusting screws are actuated either manually or by means of servomotors.
  • a device for Kraftverstörkung comprises a pneumatically actuable actuator which has a frame with paired spring plates.
  • a spring is present, which counteracts a transverse deflection of the spring plates.
  • the invention has for its object to provide a control element for regulating the To provide transverse profiles in a coating device, the structurally simple and not susceptible to interference a very reproducible positioning behavior with low Has hysteresis.
  • FIG. 1 The basic structure of an actuating element according to the invention is shown schematically in FIG shown:
  • the actuator has a frame with two spaced apart Plates (cover plate 1, bottom plate 2), which at one end (in Figure 1, right) on a End plate 3 are attached. Between the two plates 1, 2 are two spring plates 4, 5 spaced apart so that their flat sides face each other. The spring plates 4, 5 are fixed to a longitudinal end in each case with the end plate 3 connected. Your other longitudinal end is in each case attached to a bearing block 6, the slidably mounted between the plates 1, 2 in the longitudinal direction of the spring plates 4, 5 is.
  • a compressed air cushion 7 is arranged, which is connected to a Compressed air supply is connected.
  • the compressed air cushion presses 7, the two spring plates 4, 5 in each case to the outside and shortened so their effective length. This leads to the fact that when inflating the compressed air cushion 7 of Bearing block 6 in the direction of the end plate 3 - in Figure 1 to the right - is pulled.
  • an adjusting bolt 8 fastened centered, which extends in the longitudinal direction of the spring plates 4, 5.
  • Adjusting pin 8 is axially displaceably guided by an abutment 9, which between the Plates 1, 2 is attached to the frame.
  • Abutment 9 On the side facing away from the bearing block 6 Abutment 9 is a compression spring 10 is pulled on the adjusting bolt 8, located on a Side on the abutment 9 is supported. The other, outer side of the compression spring 10, presses against a collar 11 which is mounted on the adjusting bolt 8.
  • the compression spring 10 acts like this a transverse deflection of the spring plates 4, 5 in the direction of the arrows x and thus one Shortening of the effective length of the spring plates 4, 5 opposite. She pulls the Spring plates 4, 5 straight when no pressure in the compressed air cushion 7 is applied.
  • the spring plates 4, 5 are mounted in the frame so that they are for the desired Travel s of the adjusting bolt 8 carry out the required transverse bending smoothly can. This is either in the context of sufficient space available, or the Spring plates 4, 5 are arranged at a sufficiently large distance from the plates 1, 2. Upon introduction of compressed air into the compressed air cushion 7, the spring plates 4, 5 pressed to the outside, this leads to a shortening of their effective length, so that the Bearing block 6 with the adjusting bolt 8 attached thereto in the direction of the spring plates 4, 5 (to the right in FIG. 1). The lateral forces in the spring plates 4, 5 lift mutually on, so that only a very low friction in the guides of the Setting bolt 8 is created.
  • the frame of the Force generating part consists of the cover plate 1, the bottom plate 2, the end plate. 3 and two further side plates 25, 26 which are perpendicular to the plates 1, 2 and the End plate 3 arranged laterally close the frame, as shown in Figure 4.
  • the two spring plates 4, 5 are fixed with their rear longitudinal end with the end plate. 3 connected; z. B. clamped to this or - as shown in the figures - on a Secured retaining bolt 12 which is screwed by means of a screw 13 to the end plate 3 is.
  • the spring plates 4, 5 are sufficiently flexible, they can from a Pieces are made, which is guided around the retaining pin 12. The other longitudinal ends the spring plates 4, 5 are clamped in the bearing block 6, in the longitudinal direction of the Adjusting element displaceable between the plates 1, 2 is mounted. Between Federblechen 4, 5, the compressed air cushion 7 is arranged.
  • a measuring pin 14 is fixed before the clamping of the spring plates 4, 5, perpendicular to the direction of adjustment through a slot 15 in the cover plate 1 after extends outside. Since the measuring pin 14 of the movement of the bearing block 6 and the Setting bolt 8 follows, can be measured and regulated with him the adjusting movement.
  • the adjusting bolt 8 is connected to the bearing block 6 via a positive plug connection releasably connected.
  • the bearing block 6 has a T-groove 16 at its front end in which a screwed onto the end of the adjusting bolt 8 bead 17 in the longitudinal direction fitted form-fitting.
  • the adjusting bolt 8 extends through the longitudinal part of T-groove 16 in a bearing part 18 which is screwed to the side plate 1.
  • an angled mounting plate 19 is welded, the a central, open at the bottom through-hole 20, through which the adjusting bolt. 8 is guided.
  • the frame of the force-generating part is by means of screws 21 on the Bearing part 18 is fixed, which is guided by the mounting plate 19 in the bearing part 18 are.
  • the force-generating part be solved by the bearing part 18 by pulling it upwards.
  • the Bearing part 18 with the screw 8 and the bead 17 is when moving up Frame down from the T-groove 16 moves. So that the bottom plate 2 when loosening does not get in the way, it ends in the area of the bearing block 6. Between the bottom plate 2 and the bearing part 18 so creates a sufficiently large space through which the End of the adjusting bolt 8 with the bead 17 can be moved.
  • the bearing part 18 includes a through hole 22 through which the adjusting bolt 8 to the outside is guided in a wider blind hole 23.
  • the inner wall of the blind hole 23 around the through hole 22 forms the abutment 9 for a in the blind hole 23rd via the adjusting bolt 8 drawn compression spring 10.
  • the outer end of the compression spring 10th presses against a screwed onto the end of the adjusting bolt collar 24 whose Outside dimensions of the blind hole 23 are adapted, the axial movement of Setting bolt 8 is not obstructed.
  • the structural embodiment of the figures has the advantage that the bearing part 18 with the elements mounted therein fixed to the corresponding machine part of Coating device can be attached. If there are defects in the force-generating Part to occur with the compressed air cushion 7, this can be done quickly and with little effort be replaced.
  • the bearing member 18 with the adjusting bolt 8 can without the force-generating Part can be easily switched to manual operation, z. B. putting on the end of the adjusting bolt 8 an adjusting nut is screwed.
  • the metering system of a blade coater is known to contain a via the Working width extending elastic scraper blade 27 as dosing, the clamped interchangeable with his foot in a scraper bar 28.
  • the Scraper knife 27 becomes below its tip at a back of one itself also supported over the entire working width extending support bar 29.
  • At the flexible support strip 29 engages a series of spaced from 50 mm to 150 mm over the working width arranged adjusting elements to the Pressing force of the doctor blade 27 against the web to be coated locally different to be able to adjust.
  • the dosing system is in the range one by means of a Drive rotatable roller arranged, which when direct dosing in the range of Dosing system deflects and supports the paper or board web to be coated. In indirect dosing, the dosing system works against a transfer roller, the metered film of coating material subsequent to the paper or board web emits. Such dosing systems are widely known and z. In WO 93/17795 described.
  • the adjusting bolts 8 are each in the back of the Supporting rail 29 screwed in and also serve as a holder for the support strip 29th By an axial displacement of each adjusting bolt 8 so can the support bar 29 in selectively bend the respective area to the contact pressure of the doctor blade 27th to change the paper or board web for a cross profile correction.
  • a measuring device 30 may be a non-contact measuring proximity sensor be used.
  • FIG. 5 shows an embodiment in which the adjusting movement s of the Adjusting bolt 8 is measured directly.
  • a displacement measuring device 31 fixed, the displacement of the measuring pin 14 in the direction of the adjusting movement s measures.
  • the distance measuring device 31 includes a rod-shaped sensor 32, the axially displaceable parallel to the adjusting bolt 8 is mounted and by a spring 32 against the measuring pin 14 is pressed. An actuating movement of the adjusting bolt 8 is thus over the measuring pin 14 is transmitted to the probe 32 and the measuring device 31st capacitive or inductive registered.
  • FIG 6 the use of actuators according to the invention for regulation of the transverse profile in a free-jet nozzle applicator.
  • the applicator device has one of two lips 34, 35 formed over the working width extending slot nozzle from which the coating color emerges in a free jet 36 and directed against the paper or board web 37 or a roll.
  • the slot nozzle 34, 35 is connected to a feed channel 38, which consists of a color chamber 39 Coating color is supplied.
  • the nozzle lip 34 at the web entrance side becomes from the end of one at the upstream side Boundary wall 40 of the device screwed, angled profile 41 formed.
  • the lip 41 forming and the end of the feed channel 38 limiting profile 41 is Over the working width limited flexible, so that the cross profile adjustment of the distance of Lip 34 to the lip 35 set zonewise different zones over the working width can be.
  • the lip 34 is in each case in the region of an actuating element to a extended prong-shaped lever lug 42, to which a respective lever 43 is screwed is.
  • lever fastened the end of the adjusting bolt 8 of the associated adjusting device.
  • Adjusting pin 8 can be as the end of each lever 43 limited push up or pull down to bend the nozzle lip 34 targeted in this area and so the distance to the other nozzle lip 35 in this area for a cross profile setting to change.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)

Claims (7)

  1. Elément de réglage pneumatique ayant les caractéristiques suivantes :
    un cadre (1, 2, 3, 25, 26),
    deux tôles à ressort (4, 5) disposées avec leurs côtés plats parallèles l'un à l'autre et à distance l'une de l'autre, qui à chaque fois
    sont connectées fixement à une extrémité au cadre (3) et
    dont l'autre extrémité est respectivement connectée fixement à un boulon de réglage (8) monté de manière à pouvoir coulisser axialement dans le cadre (1, 2, 3, 25, 26),
    un coussin d'air comprimé (7) disposé entre les tôles à ressort (4, 5) et raccordé à une alimentation en air comprimé, et
    un ressort (10) qui s'oppose à une déviation transversale des tôles à ressort (4, 5),
    caractérisé en ce qu'une feuille est disposée entre le coussin d'air comprimé (7) et les tôles à ressort (4, 5).
  2. Elément de réglage selon la revendication 1, caractérisé en ce que le boulon de réglage (8) est guidé par un palier (9) sur le côté duquel, opposé aux tôles à ressort (4, 5), est disposé un ressort de pression (10) qui presse le boulon de réglage (8) vers l'extérieur.
  3. Elément de réglage selon les revendications 1 et 2, caractérisé en ce qu'un dispositif de mesure de distance (31) mesure le déplacement axial du boulon de réglage (8).
  4. Elément de réglage selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'un dispositif de mesure (30) mesure la déviation d'une tôle à ressort (4) perpendiculairement à la direction de réglage.
  5. Dispositif pour le revêtement d'une bande de papier ou de carton (37), caractérisé en ce que l'on dispose sur la largeur de travail une série d'éléments de réglage selon l'une quelconque des revendications 1 à 4, qui agissent à chaque fois dans une région sur un élément du dispositif de revêtement influençant le poids d'enduction.
  6. Dispositif selon la revendication 5, caractérisé par un système de dosage avec un couteau racloir (27) servant d'élément de dosage, qui est supporté sous sa pointe par une nervure de support de flexion limitée (29) sur laquelle viennent en prise les éléments de réglage.
  7. Dispositif selon la revendication 5, caractérisé par une buse à fente formée par deux lèvres de buse (34, 35) et s'étendant sur la largeur de travail, de laquelle sort le matériau de revêtement sous forme de jet libre (37), les éléments de réglage venant en prise sur une lèvre de buse (34) qui est configurée avec une flexion limitée.
EP98118118A 1997-12-05 1998-09-24 Eléments de réglage pneumatiques, utilisés notamment dans un dispositif de revêtement de bandes de papier ou de carton pour régler le profil transversal du revêtement Expired - Lifetime EP0920917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19753899 1997-12-05
DE19753899A DE19753899A1 (de) 1997-12-05 1997-12-05 Pneumatisch betätigbares Stellelement, insbesondere zur Regulierung des Querprofils in einer Beschichtungsvorrichtung für Papier- oder Kartonbahnen

Publications (3)

Publication Number Publication Date
EP0920917A2 EP0920917A2 (fr) 1999-06-09
EP0920917A3 EP0920917A3 (fr) 2002-02-13
EP0920917B1 true EP0920917B1 (fr) 2005-08-10

Family

ID=7850790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118118A Expired - Lifetime EP0920917B1 (fr) 1997-12-05 1998-09-24 Eléments de réglage pneumatiques, utilisés notamment dans un dispositif de revêtement de bandes de papier ou de carton pour régler le profil transversal du revêtement

Country Status (4)

Country Link
US (1) US6296703B1 (fr)
EP (1) EP0920917B1 (fr)
AT (1) ATE301508T1 (fr)
DE (2) DE19753899A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109132069B (zh) * 2018-07-18 2021-07-20 温州博德真空镀铝有限公司 一种瓶体的贴标工艺、瓶体及离型剂涂布装置
CN112495694B (zh) * 2020-12-02 2022-03-11 苏州麦德迅医疗科技有限公司 一种粘结剂附着装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800569A (en) * 1971-05-07 1974-04-02 Riggs & Lombard Inc Apparatus for applying liquid to a running web
DE3220075C2 (de) * 1982-05-28 1985-05-02 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung
US4665859A (en) * 1985-12-11 1987-05-19 Thermo Electron-Web Systems, Inc. Finger-type doctor blade holder
DE3834719C2 (de) * 1988-10-12 1997-07-10 Hoechst Ag Vorrichtung zur Spaltverstellung einer Düsenanordnung
DE4207731A1 (de) * 1992-03-11 1993-09-16 Jagenberg Ag Abstuetzleiste fuer eine beschichtungsvorrichtung
DE4334556A1 (de) * 1993-10-11 1995-04-13 Jagenberg Ag Vorrichtung zum Beschichten einer Materialbahn, insbesondere einer Papier- oder Kartonbahn
DE4432177A1 (de) 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE4433048A1 (de) * 1994-09-16 1996-03-21 Tzn Forschung & Entwicklung Verfahren und Vorrichtung zum kontinuierlichen Aufbringen einer Beschichtung auf eine Materialbahn
DE19532920A1 (de) * 1995-09-06 1997-03-13 Voith Sulzer Papiermasch Gmbh Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19538861A1 (de) * 1995-10-19 1997-04-24 Bayerische Motoren Werke Ag Vorrichtung zur Kraftverstärkung
DE29520686U1 (de) * 1995-12-29 1996-04-04 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19617458A1 (de) * 1996-05-02 1997-11-06 Jagenberg Papiertech Gmbh Abstützsystem für das Dosierelement einer Beschichtungsvorrichtung
DE29610773U1 (de) * 1996-06-19 1996-09-05 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Freistrahldüsen-Auftragseinrichtung
DE29622365U1 (de) * 1996-12-23 1997-06-19 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn

Also Published As

Publication number Publication date
DE19753899A1 (de) 1999-06-10
ATE301508T1 (de) 2005-08-15
EP0920917A3 (fr) 2002-02-13
EP0920917A2 (fr) 1999-06-09
DE59812993D1 (de) 2005-09-15
US6296703B1 (en) 2001-10-02

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