EP0920917A2 - 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
EP0920917A2
EP0920917A2 EP98118118A EP98118118A EP0920917A2 EP 0920917 A2 EP0920917 A2 EP 0920917A2 EP 98118118 A EP98118118 A EP 98118118A EP 98118118 A EP98118118 A EP 98118118A EP 0920917 A2 EP0920917 A2 EP 0920917A2
Authority
EP
European Patent Office
Prior art keywords
adjusting
spring plates
spring
coating
compressed air
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
EP98118118A
Other languages
German (de)
English (en)
Other versions
EP0920917A3 (fr
EP0920917B1 (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
Jagenberg Papiertechnik GmbH
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 Jagenberg Papiertechnik GmbH, Voith Paper Patent GmbH filed Critical Jagenberg Papiertechnik 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 actuated control element, in particular for Regulation of the cross profile in a device for coating paper or Cardboard webs, and a coating device with actuators according to the Invention.
  • coating colors e.g. B. pigment colors, starch, etc.
  • devices are used that over the Working width have a number of control elements, which in the corresponding Areas on an element of the coating device influencing the application weight act.
  • a setting that differs locally across the working width
  • the order weight determining element is required to be production-related Compensate for fluctuations in the cross profile of the webs for an even order.
  • So-called blade coating systems are used to coat paper or cardboard webs known, which is an applicator for applying coating material, e.g. B. coating color, in excess on the web and a subsequently arranged
  • the height of the line weight remaining on the web can be determined by the contact pressure of the Adjust the doctor knife to the web, which is usually on the back of a support bar that is flexible within limits is supported.
  • WO 93/17795 describes such a blade coating device in which to set a locally different Contact pressure of the scraper knife on the support bar a number of adjusting elements attack.
  • Each actuator contains an axially displaceable through a holder guided adjusting rod, which can be adjusted against the force of an Compression spring is axially displaceable.
  • From DE-OS 44 32 177 is a so-called free jet nozzle application device 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 roller, which then transfers the film of coating material to the web.
  • a specific cross profile is one of the two lips of the slot nozzle by means of an adjusting device in zones at a distance from the other lip adjustable.
  • the adjustment device contains a number of distributed over the working width arranged adjusting screws, which are biased by spring elements. The The adjustment screws are operated either manually or by means of servomotors.
  • the invention has for its object an actuator for regulating the To create cross profile in a coating device that is structurally simple and not susceptible to interference, a very reproducible control behavior with low Exhibits hysteresis.
  • the actuator has a frame with two spaced apart Plates (cover plate 1, base plate 2) on one end (on the right in Figure 1) on one 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 each fixed to the end plate 3 at one longitudinal end connected. Its other longitudinal end is attached to a bearing block 6, respectively between the plates 1, 2 in the longitudinal direction of the spring plates 4, 5 slidably mounted is.
  • a compressed air cushion 7 is arranged, which on a Compressed air supply is connected.
  • the compressed air cushion presses 7, the two spring plates 4, 5 each to the outside, thus shortening them effective length. This leads to the fact that when the compressed air cushion 7 is inflated Bearing block 6 in the direction of the end plate 3 - to the right in Figure 1 - is pulled.
  • the spring sheets 4, 5 are mounted in the frame so that they for the desired Adjustment path s of the adjusting pin 8 must perform the required transverse bending without any problems can. There is either sufficient space in the frame, or the Spring plates 4, 5 are arranged at a sufficiently large distance from the plates 1, 2. When compressed air is introduced into the compressed air cushion 7, the spring plates 4, 5 pushed outwards, this leads to a shortening of their effective length, so that the Bearing block 6 with the adjusting bolt 8 attached to it in the direction of the spring plates 4, 5 (to the right in Figure 1) is pulled. Raise the transverse forces in the spring plates 4, 5 each other so that there is very little friction in the guides of the Adjusting bolt 8 arises.
  • the spring 10 counteracting a transverse deflection of the spring plates 4, 5 ensures that the adjusting bolt 8 is adjusted without play.
  • the hysteresis is very low, so that a very reproducible control behavior is available.
  • FIGS. 2 to 6 show specific embodiments of an actuating element, which are intended for installation in a coating device, around a doctor knife or to specifically influence a nozzle lip in a certain zone:
  • the framework of the force-generating part consists of the cover plate 1, the base plate 2, the end plate 3 and two further side plates 25, 26, which are perpendicular to the plates 1, 2 and End plate 3 arranged close the frame laterally, as shown in Figure 4.
  • the two longitudinal spring plates 4, 5 are fixed to the end plate 3 with their rear longitudinal end connected; e.g. B. clamped to this or - as shown in the figures - on one Holding bolt 12 attached, which is screwed onto the end plate 3 by means of a screw 13 is.
  • the spring plates 4, 5 are sufficiently flexible, they can be made from one Pieces are made, which is guided around the retaining bolt 12. The other longitudinal ends the spring sheets 4, 5 are clamped in the bearing block 6, which in the longitudinal direction of the Actuating element is slidably mounted between the plates 1, 2. Between Spring plates 4, 5, the compressed air cushion 7 is arranged.
  • a measuring bolt 14 is fastened to the bearing block 6 before the spring plates 4, 5 are clamped, which is perpendicular to the direction of adjustment through an elongated hole 15 in the cover plate 1 extends outside. Since the measuring pin 14 of the movement of the bearing block 6 and Adjusting bolt 8 follows, the actuating movement can be measured and controlled with it.
  • 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 bead 17 screwed onto the end of the adjusting bolt 8 in the longitudinal direction is positively fitted.
  • the adjusting bolt 8 extends through the longitudinal part of the T-slot 16 in a bearing part 18 which is screwed onto the side plate 1.
  • An angled mounting plate 19 is welded to the end of the cover plate 1 has a central through hole 20 which is open at the bottom and through which the adjusting bolt 8 is led.
  • the frame of the force-generating part is attached to the by means of screws 21
  • Bearing part 18 attached, which is guided through the mounting plate 19 into the bearing part 18 are.
  • the force-generating part can be released from the bearing part 18 by pulling it upwards.
  • the Bearing part 18 with the set screw 8 and the bead 17 is when moving the Frame moved down out of the T-slot 16. So that the base plate 2 when loosening not in the way, it ends in the area of the bearing block 6. Between the base plate 2 and the bearing part 18 creates a sufficiently large free space through which End of the adjusting bolt 8 can be moved with the bead 17.
  • the bearing part 18 contains a through hole 22 through which the adjusting pin 8 to the outside is guided into 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 Compression spring 10 pulled over the adjusting bolt 8.
  • the outer end of the compression spring 10 presses against a collar 24 screwed onto the end of the adjusting bolt, the External dimensions so the blind hole 23 are adapted, the axial movement of the Adjusting bolt 8 is not hindered.
  • the structural embodiment according to the figures has the advantage that the bearing part 18 with the elements mounted therein on the corresponding machine part of the Coating device can be attached. If defects in the force generating Part occur with the compressed air cushion 7, this can be done quickly and with little effort be replaced.
  • the bearing part 18 with the adjusting bolt 8 can be without the force-generating Part simply be switched to manual operation, e.g. B. by on the end of the adjusting bolt 8, an adjusting nut is screwed on.
  • the metering system of a blade coating system is known to contain a Working width extending elastic scraper 27 as a metering element is interchangeably clamped with its foot in a scraper beam 28.
  • the Scraper knife 27 is located below its tip on a back of one itself supported over the entire working width support bar 29.
  • the dosing system is in the range of one by means of a Drive rotatable roller arranged in the direct metering in the area of Dosing system redirects and supports the paper or cardboard web to be coated. With indirect dosing, the dosing system works against a transfer roller that metered film of coating material then on the paper or cardboard web delivers.
  • Such metering systems are widely known and z. B. in WO 93/17795 described.
  • the adjusting elements on the top of the scraper beam 28 are included attached to their bearing part 18. So the force-generating part - as above described - simply be solved.
  • the adjusting bolts 8 are each in the back of the Support bar 29 screwed in and thus also serve as a holder for the support bar 29. By an axial displacement of each adjusting bolt 8, the support bar 29 can in selectively bend the respective area in order to apply the contact pressure of the doctor knife 27 to change the paper or cardboard web for a cross profile correction.
  • the transverse deflection x of the through a recess in the cover plate 1 Spring plate 4 measures and so indirectly the axial adjustment movement s of the adjusting pin 8th records.
  • a contactless measuring proximity sensor can be used as the measuring device 30 be used.
  • FIG. 5 shows an embodiment in which the actuating movement s of the Adjusting bolt 8 is measured directly.
  • a path measuring device is on the cover plate 1 31 attached, the displacement of the measuring pin 14 in the direction of the actuating movement s measures.
  • the displacement measuring device 31 contains a rod-shaped measuring sensor 32 which is axially displaceable parallel to the adjusting pin 8 and is supported by a spring 32 the measuring pin 14 is pressed. An adjusting movement of the adjusting bolt 8 is thus over transmit the measuring bolt 14 to the sensor 32 and from the measuring device 31 capacitive or inductive registered.
  • FIG 6 is the use of actuators according to the invention for regulation of the cross section shown in a free jet applicator.
  • the application 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 is directed against the paper or cardboard web 37 or a roller.
  • the slot nozzle 34, 35 is connected to a feed channel 38, which consists of a paint chamber 39 Coating color is supplied.
  • the nozzle lip 34 on the web entry side becomes from the end of one on the entry side Boundary wall 40 of the device screwed, angled profile 41 is formed.
  • the profile 41 which forms the lip 34 and delimits the end of the feed channel 38 limited flexibility over the working width, so that the distance of the Lip 34 is set differently from zone 35 to lip 35 across the working width can be.
  • the distance between the lips 34, 35 is adjusted by means of a row of control elements designed according to the invention, which at regular intervals, e.g. every 100 mm, with its bearing part 18 screwed onto the outside of the boundary wall 40 are.
  • the lip 34 is in each case in the area of an adjusting element Prong-shaped lever extension 42, to which a lever 43 is screwed is.
  • the end of the adjusting bolt 8 attached to the associated actuating device.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
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
DE19753899A DE19753899A1 (de) 1997-12-05 1997-12-05 Pneumatisch betätigbares Stellelement, insbesondere zur Regulierung des Querprofils in einer Beschichtungsvorrichtung für Papier- oder Kartonbahnen
DE19753899 1997-12-05

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112495694A (zh) * 2020-12-02 2021-03-16 苏州麦德迅医疗科技有限公司 一种粘结剂附着装置

Families Citing this family (1)

* 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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017795A1 (fr) 1992-03-11 1993-09-16 Jagenberg Aktiengesellschaft Baguette d'appui pour un dispositif d'application de revetement
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

Family Cites Families (12)

* 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
DE4334556A1 (de) * 1993-10-11 1995-04-13 Jagenberg Ag Vorrichtung zum Beschichten einer Materialbahn, insbesondere einer Papier- oder Kartonbahn
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017795A1 (fr) 1992-03-11 1993-09-16 Jagenberg Aktiengesellschaft Baguette d'appui pour un dispositif d'application de revetement
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112495694A (zh) * 2020-12-02 2021-03-16 苏州麦德迅医疗科技有限公司 一种粘结剂附着装置
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

Also Published As

Publication number Publication date
DE59812993D1 (de) 2005-09-15
US6296703B1 (en) 2001-10-02
EP0920917A3 (fr) 2002-02-13
ATE301508T1 (de) 2005-08-15
EP0920917B1 (fr) 2005-08-10
DE19753899A1 (de) 1999-06-10

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