EP0744220B1 - Buse à fente - Google Patents

Buse à fente Download PDF

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Publication number
EP0744220B1
EP0744220B1 EP96106348A EP96106348A EP0744220B1 EP 0744220 B1 EP0744220 B1 EP 0744220B1 EP 96106348 A EP96106348 A EP 96106348A EP 96106348 A EP96106348 A EP 96106348A EP 0744220 B1 EP0744220 B1 EP 0744220B1
Authority
EP
European Patent Office
Prior art keywords
slot nozzle
recess
nozzle according
slide
cavity
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
EP96106348A
Other languages
German (de)
English (en)
Other versions
EP0744220A2 (fr
EP0744220A3 (fr
Inventor
Jörg-Olaf Bagung
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.)
Nordson Corp
Original Assignee
Nordson Corp
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 Nordson Corp filed Critical Nordson Corp
Publication of EP0744220A2 publication Critical patent/EP0744220A2/fr
Publication of EP0744220A3 publication Critical patent/EP0744220A3/fr
Application granted granted Critical
Publication of EP0744220B1 publication Critical patent/EP0744220B1/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
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0266—Coating heads with slot-shaped outlet adjustable in length, e.g. for coating webs of different width
    • 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
    • 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 slot nozzle with a nozzle inlet and an orifice, with two relative to each other in the given direction (displacement direction x) displaceable slider elements forming a cavity between them one sliding surface that touches one another, of which the first sliding surface is one Recess and the second sliding surface has a projection that into the recess engages, and the cavity from the bottom and side surfaces of the recess, an end face of the projection and the second sliding surface is limited and the surfaces of the two slide elements delimiting it lie tightly against one another, with the nozzle inlet on an outer surface of one of the slide elements communicates and on a parallel to the direction of movement (x) and between the has a slit-shaped opening on both side of the slide elements, which forms the mouth opening of the slot nozzle and the application width Moving the slide elements relative to each other is adjustable.
  • Such slit nozzles are from PATENT ABSTRACTS OF JAPAN vol.015, no. 031 (C-0798) known. They are used for the flat application of different types of flowable Materials on various types of surfaces. Depending on the purpose, as material to be applied z. B. dissolved or reactive synthetic resins such as polyurethane serve, but also cold glue or hot melt adhesive are possible. Such materials can, for example, for coating purposes on narrow surfaces of Wood, plastic or metal profiles can be applied or as adhesive strips on foils or paper surfaces.
  • the width, in the flowable material to be applied varies because, for example Wood or plastic profiles of different thicknesses should be coated, or because adhesive or colored strips in different widths, for example Foil surfaces are to be applied.
  • slot nozzles the discharge width is variable. It understands themselves that these slot nozzles are easy to disassemble for cleaning purposes and assemble and be free of adhesive or synthetic resin residues. In order to for example reactive resin not in "dead water areas" of the slot nozzle as long lingers until it hardens, if possible all channels of the slot nozzle should be used material is constantly flowing through; this also applies to such channels or Parts of it that temporarily do not when the slot width is reduced are needed.
  • One such field of application is, for example, the sticking of Edge banding on the side surfaces of table tops or similar. The edge banding can the side surfaces are often fed only at a flat angle because they break easily due to its brittleness if the bending radius when applying the Edge band on the side surface to be edge banded is too small.
  • the Adhesive should be applied as close as possible to the place where the edge and the side face meet. Then namely quickly curing adhesives are used for high production speeds, without the risk that the adhesive will come together before Edge band and side surface harden. Especially when gluing the side surfaces of Tabletops are common due to the different thickness of the tabletops on the problem that the width of the adhesive film is adapted to this thickness got to.
  • the object on which the invention is based is, therefore, one as possible to specify universally applicable slot nozzle that the above mentioned Avoids problems as far as possible and fulfills the requirements mentioned as well is as simple as possible.
  • a slot nozzle at the beginning mentioned type which is characterized in that it is between the nozzle inlet and the cavity has a plenum that communicates with the nozzle inlet communicates, connects to the cavity and its length in the direction of displacement (x) corresponds to the maximum length of the cavity; that the distribution room from a recess extending from the cavity in one of the slide elements is formed, the side of which is open at maximum order width at smaller Order widths are partially covered and that the distribution space via a supply line communicates with the nozzle inlet which is at that end of the plenum flows out, starting from when moving the slide elements relative to each other whose position is covered first at maximum order width.
  • the solution according to the invention has a number of advantages: cavity and mouth opening can maintain symmetry regardless of their setting and in this way a uniform over the entire width of the mouth opening Ensure material flow.
  • the construction of the slot nozzle can be very simple and result from the surface seals between the two slide elements no sealing problems.
  • the slot nozzle according to the invention is easy to disassemble and easy to clean.
  • the two sliding surfaces can be transverse to the direction of displacement of the slide elements be profiled so that the cavity both expand in sections as well as taper as long as the two sliding surfaces are flat on one another lie and are displaceable in one direction.
  • Another advantage of this solution is that it can be used for different job widths the slot nozzle does not come to "dead water areas" and the distribution room material flows through the entire length of all order widths, because the supply line, through which the distributor space communicates with the nozzle inlet, at the end of the distribution space that opens when moving the slide elements relative to each other based on their position at maximum order width is covered first.
  • the distribution space is a depression formed in the second slide element and extends from the Projection in the direction of displacement.
  • the supply line ends at the protrusion opposite end of the distribution room.
  • the sliding surfaces are and the bottom of the recess is flat and parallel to each other.
  • the height of the mouth opening perpendicular to the direction of displacement is constant.
  • the first sliding surface can be rectangular in plan and the recess be arranged in a corner of the sliding surfaces, so that the recess two has adjoining side surfaces and a floor and two abutting side surfaces of the first slide element is open laterally.
  • the projection second slide element from two sub-elements.
  • the first of these parts forms one part of the second sliding surface with the projection, while a second part of the second sliding surface of the second partial element of the second Slider element is formed.
  • the first sub-element has the nozzle inlet and a communicating with this for the distribution space, which on a Side is limited by a side surface of the second sub-element.
  • Fig. 1 shows a schematic embodiment of the slot nozzle according to the invention a first and second slide element each consisting of only one piece 10, 20.
  • the two slide elements 10, 20 are in one with x in Fig. 1st designated predetermined direction slidable relative to each other and arranged.
  • the first slide element 10 has a first on its underside Sliding surface 12 with a recess 14. Both the first sliding surface 12 and the recess 14 are rectangular.
  • the recess 14 sets at a corner the base of the slide element 10 and is both shorter and narrower than the footprint.
  • the depth of the recess 14 is in the drawing denoted by t, its width by b.
  • the upper side (based on FIG. 1) of the second slide element 20 forms one second sliding surface 22. From this a projection 24 rises in a corner, the height h of the depth t of the recess 14 of the first slide element 10 corresponds. The width b of the projection 24 also corresponds to that of the recess 14. However, the length of the projection 24 is significantly less than the length of the Recess 14.
  • the feed line 28 opens according to the invention in that End of the distribution space 26 facing away from the projection 24. With reference 1 to 7 would then be the feed line 28 at the right end of the Distribution room 26.
  • the first slide element 10 and the second slide element 20 are made Fig. 1 assembled to a simple variant of the slot nozzle according to the invention.
  • the two sliding surfaces 12 and 22 lie on each other so that in the recess 14 a cavity is formed on one side of the Projection 24 is sealed so that it is in addition to that of the lead 28 and the Distribution space 26 formed only a slot-shaped opening at its opening Front (based on Fig. 2). This opening is the mouth opening 32 of the slot nozzle.
  • the slot nozzle is intended for the application of adhesive.
  • the glue comes out thereby through the connection opening 30 on the underside of the slot nozzle into the same and arrives via the supply line 28 in the distribution room 26. There it is via the distributed over the entire width of the cavity and emerges at the mouth opening 32 from the Slot nozzle.
  • FIG. 4 An actual embodiment of the slot nozzle consists of more than two Elements, as can be seen in Fig. 4.
  • the slot nozzle shown there has a base body 40, which together with a mouth plate 42 a second slide element 20 from FIGS. 1-3 forms a corresponding unit.
  • Mouthpiece 44 which is displaceable on the by means of a pressure piece 46
  • Base body 40 corresponds to the first slide element 10 from the Fig. 1 - 3.
  • Fixed spindle 48 with its thread 50 in a corresponding Counter thread 52 in a bore 54 in the mouthpiece 44.
  • the slot nozzle in FIG. 4 has further elements related to their purpose.
  • a Hose connector 60 attached for the supply of adhesive.
  • Adhesive is supplied to the mouth of the slot nozzle through holes in the base body 40, one of which is attached to the base body 40 with the aid of a attached pneumatic valve 62 with magnetic auxiliary valve 64 can be closed to interrupt the flow of adhesive.
  • an electric heater 66 for heating the entire slot nozzle provided.
  • On the electric heater 66 is a electrical connection 68 attached, via which both the heating required electrical energy is supplied as well as the control signals for the magnetic Auxiliary valve 64.
  • two electrical connections 70 and 72 are provided.
  • the Two threaded bolts 74 and 76 are used to mount the slot nozzle on a carrier on the base body 40.
  • the essential elements of the slot nozzle in connection with the invention are the base body 40, the mouth plate 42 and the mouthpiece 44. These three Elements are shown in section in Fig. 5.
  • the base body 40 is with several Bores 80-88 equipped, of which the bore 80 receiving a Heating element serves, while the holes 82-88 of the supply of adhesive in serve the distribution space 90.
  • the valve 62 is screwed into the bore 84.
  • the supply of adhesive can therefore be interrupted in the area of the bore 84, so that the adhesive no longer from the bore 82 into the bores 86 and 88th can reach.
  • a distribution space 90 consists of a groove in the base body 40, which extends perpendicular to the drawing plane of FIG. 5. The groove is on one Side covered by the mouth plate 42, so that the distribution space 90 only one narrow slot-shaped exit 92 on the underside of the unit from the base body 40 and mouth plate 42 has.
  • the mouthpiece 44 connects to the Base body 40 closely.
  • the bore 54 in the mouthpiece 44 can also be seen the internal thread 52 for receiving the threaded spindle 48.
  • the mouthpiece 44 is perpendicular to the base body 40 and the mouth plate 42 5 by means of the spindle 48, not shown. Between the mouth plate 42 and the mouthpiece 44 is through a recess the top of the mouthpiece 44 serving as a sliding surface is a slit-shaped one Cavity 94 formed on the input side with the outlet 92 of the distribution space 90 communicates and on the output side in a slot-shaped opening 96 ends.
  • the flow of adhesive is indicated by arrows in FIG. 5.
  • Fig. 6 is indicated by arrows, how the adhesive through the unit from the Base body 40 and the mouthpiece 44 flows and is distributed.
  • the mouthplate 42 is not shown in the drawing, so that the groove for the distribution space 90 comes to light.
  • the adhesive passes through the bore 98 for the hose connection 62 into the base body 40, becomes from the bore 82 to the bore 84 for the pneumatic valve 64 and from there via the bores 86 and 88 into the groove for the distribution space 90.
  • the adhesive Via the slot-shaped outlet opening 92 of the distributor space 90, the adhesive enters the cavity 94 between the base body 40 and the mouthpiece 44, which is its maximum in FIG Width.
  • the cavity 94 is in a recess of the mouthpiece 44 between the Mouth plate 42 and the mouthpiece 44 are formed.
  • the recess is there arranged with respect to the sliding surface of the mouthpiece 44 exactly as it is from the Fig. 1-3 for the simple variant of the slot nozzle can be seen.
  • the head start engages in the recess to delimit the cavity is part of the sliding surface on the underside (with reference to FIG. 5) of the unit consisting of base body 40 and Mouth plate 42.
  • the sliding surface of the unit comprising base body 40 and mouth plate 42 is from the entire bottom (based on Fig. 5) of the mouth plate 42 and of the partial surface formed on the underside of the base body 40, which on the Sliding surface of the mouthpiece 44 rests.
  • the projection is part of the basic body 40.

Landscapes

  • Coating Apparatus (AREA)
  • Nozzles (AREA)

Claims (14)

  1. Buse à fente avec un orifice d'admission et une bouche, avec deux éléments à coulisse (10, 20) formant entre eux une cavité, pouvant coulisser l'un par rapport à l'autre dans une direction prédéfinie, désignée comme le sens de coulissement (x) et comprenant chacun une surface de glissement (12, 22), lesquelles surfaces de glissement entrent en contact l'une avec l'autre sur toute la surface et parmi lesquelles la première surface de glissement (12) comporte un évidement (14) et la deuxième surface de glissement (22) une saillie (24), qui s'engage dans l'évidement (14), et la cavité
    est délimitée par le fond et les faces latérales de l'évidement (14), par une face frontale de la saillie (24) et par la deuxième surface de glissement (22), et les surfaces, délimitant ladite cavité, des deux éléments à coulisse (10, 20) sont en contact étanche les unes avec les autres,
    communique avec l'orifice d'admission (30) de la buse, sur une surface extérieure de l'un des éléments à coulisse (10, 20), et
    comporte une ouverture en forme de fente sur un côté parallèle au sens de coulissement (x) et situé entre les deux éléments à coulisse (10, 20), laquelle ouverture forme la bouche (32) de la buse à fente et dont la largeur de projection peut être réglée par le déplacement des éléments à coulisse (10, 20) l'un par rapport à l'autre ;
       caractérisée en ce que, entre l'orifice d'admission (30) de la buse et la cavité, la buse à fente comporte un compartiment distributeur (26), qui communique avec l'orifice d'admission (30) de la buse, est adjacent à la cavité et dont la longueur dans le sens de coulissement (x) correspond à la longueur maximale de la cavité ;
    en ce que le compartiment distributeur (26) est formé par un creux, qui est réalisé dans l'un des éléments à coulisse (10, 20) en partant de la cavité et dont le côté ouvert en cas de largeur de projection maximale est partiellement fermé lorsque les largeurs de projection sont plus petites ; et
    en ce que le compartiment distributeur (26) communique avec l'orifice d'admission (30) de la buse par l'intermédiaire d'une conduite d'admission (28), qui débouche sur l'extrémité du compartiment distributeur (26) qui, à partir de la position en cas de largeur de projection maximale, est fermée en premier au moment du déplacement des éléments à coulisse (10, 20) l'un par rapport à l'autre.
  2. Buse à fente selon la revendication 1, caractérisée en ce que le compartiment distributeur (26) est formé par un creux réalisé dans la surface de glissement (22) du deuxième élément à coulisse (20) et s'étend à partir de la saillie (24) dans le sens de coulissement (x).
  3. Buse à fente selon la revendication 1 ou 2, caractérisée en ce que la conduite d'admission (28) débouche sur l'extrémité du compartiment distributeur (26) opposée à la saillie (24).
  4. Buse à fente selon l'une des revendications précédentes, caractérisée en ce que les surfaces de glissement (12, 22) sont planes.
  5. Buse à fente selon la revendication 4, caractérisée en ce que le fond de l'évidement (14) est plan et s'étend parallèlement aux surfaces de glissement (12, 22).
  6. Buse à fente selon l'une des revendications précédentes, caractérisée en ce que la hauteur de la bouche (32), perpendiculaire au sens de coulissement (x), est constante.
  7. Buse à fente selon l'une des revendications précédentes, caractérisée en ce que le premier élément à coulisse (10 ; 44) comportant l'évidement (14) est réalisé en une seule pièce.
  8. Buse à fente selon la revendication 7, caractérisée en ce que la première surface de glissement (12) est rectangulaire.
  9. Buse à fente selon la revendication 8, caractérisée en ce que l'évidement (14) est réalisé dans un coin de la première surface de glissement (12), de telle sorte que l'évidement (14) possède deux surfaces latérales contiguës et un fond et est ouvert latéralement au niveau de deux faces latérales adjacentes du premier élément à coulisse (10).
  10. Buse à fente selon l'une des revendications précédentes, caractérisée en ce que le deuxième élément à coulisse (20) muni de la saillie (24) est formé par deux éléments partiels (40, 42).
  11. Buse à fente selon la revendication 10, caractérisée en ce que le premier élément partiel (40) comporte l'orifice d'admission (98) de la buse et une rainure communiquant avec celui-ci pour le compartiment distributeur (90).
  12. Buse à fente selon la revendication 11, caractérisée en ce que la rainure pour le compartiment distributeur (90) est délimitée sur un côté par une face latérale du deuxième élément partiel (42).
  13. Buse à fente selon l'une des revendications précédentes, caractérisée en ce que le premier élément à coulisse (10 ; 44) est posé contre le deuxième élément à coulisse (20 ; 40 + 42) de manière à pouvoir coulisser au moyen d'une pièce de pression (46).
  14. Buse à fente selon l'une des revendications précédentes, caractérisée en ce qu'une broche filetée (48) est montée contre le deuxième élément à coulisse (20 ; 40 + 42), laquelle broche s'engage dans le premier élément à coulisse (10 ; 44) de manière telle que celui-ci peut se déplacer linéairement par rapport au deuxième élément à coulisse (20 ; 40 + 42), par la rotation de la broche filetée (48).
EP96106348A 1995-05-23 1996-04-23 Buse à fente Expired - Lifetime EP0744220B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19518604A DE19518604A1 (de) 1995-05-23 1995-05-23 Schlitzdüse
DE19518604 1995-05-23

Publications (3)

Publication Number Publication Date
EP0744220A2 EP0744220A2 (fr) 1996-11-27
EP0744220A3 EP0744220A3 (fr) 1997-12-29
EP0744220B1 true EP0744220B1 (fr) 2001-12-05

Family

ID=7762463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106348A Expired - Lifetime EP0744220B1 (fr) 1995-05-23 1996-04-23 Buse à fente

Country Status (5)

Country Link
US (1) US5862993A (fr)
EP (1) EP0744220B1 (fr)
JP (1) JP3670390B2 (fr)
DE (2) DE19518604A1 (fr)
ES (1) ES2167481T3 (fr)

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US6161785A (en) * 1998-01-26 2000-12-19 Charged Injection Corporation Electrostatic atomizer based micro-burner for logistic fuels
ES2152817B1 (es) * 1998-05-20 2001-08-16 Barberan Sa Perfeccionamientos en los cabezales de aplicacion por tobera de colas termofusibles o de poliuterano reactivo.
DE29921828U1 (de) * 1999-12-13 2000-07-27 Sm-Klebetechnik Vertriebs GmbH, 52525 Heinsberg Auftragsvorrichtung
DE10205437C1 (de) * 2002-02-08 2003-11-27 Kiener Maschinenbau Gmbh Verfahren zur Einstellung einer Arbeitsbreite einer Düsenanordnung zum Auftragen eines fließfähigen Mediums auf eine Materialbahn und Vorrichtung zur Durchführung des Verfahrens
DE10331325A1 (de) * 2003-07-10 2005-02-03 Voith Paper Patent Gmbh Auftragsvorrichtung mit verstellbarer Auftragsbreite
US7185833B2 (en) * 2004-03-18 2007-03-06 Ernest Geskin Method for fluid jet formation and apparatus for the same
DE202006005590U1 (de) * 2006-04-04 2007-08-16 Nordson Corporation, Westlake Vorrichtung zum Binden von Stapeln aus Flachteilen
US8256374B2 (en) * 2007-04-11 2012-09-04 Nordson Corporation Apparatus and methods for profile wrapping laminates
EP2377623B1 (fr) * 2010-04-13 2013-07-31 Nordson Corporation Dispositif d'application d'une matière liquide sur un substrat
CN108602086A (zh) * 2016-02-12 2018-09-28 3M创新有限公司 具有主动受控涂覆宽度的狭缝模具
KR101672784B1 (ko) * 2016-04-15 2016-11-04 이종주 노즐 유닛 및 이를 이용하는 도포액 도포 장치
JP7242092B1 (ja) * 2021-09-07 2023-03-20 プレマテック株式会社 塗布ヘッド

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US4960245A (en) * 1983-01-17 1990-10-02 Electric Power Research Institute Casting nozzle with discharge slot defined by refractory inserts
US4570859A (en) * 1984-02-06 1986-02-18 Owens-Corning Fiberglas Corporation Foam dispenser for glass mat substrate
JPS613641A (ja) * 1984-06-15 1986-01-09 Daihen Corp 非晶質合金ストリツプ製造装置
JP2725366B2 (ja) * 1989-04-11 1998-03-11 石川島播磨重工業株式会社 塗工装置
WO1991014510A1 (fr) * 1990-03-29 1991-10-03 Slautterback Corporation Appareil de reliure comprenant une tete d'application d'adhesif
DE9108543U1 (de) * 1991-07-11 1991-11-14 Nordson Corp., Westlake, Ohio Breitschlitzdüse zum Auftragen von Fluiden, insbesondere von Schmelzklebern
US5219620A (en) * 1991-07-25 1993-06-15 E. I. Du Pont De Nemours And Company Method and apparatus for foam treating pile fabrics
DE9206304U1 (de) * 1992-05-11 1992-09-17 Nordson Corp., Westlake, Ohio Verstellbare Breitschlitzdüse zum Auftragen von Fluiden, insbesondere Schmelzklebern
DE9412935U1 (de) * 1994-08-11 1994-10-13 Nordson Corp., Westlake, Ohio Schlitzdüse zum Auftragen von fließfähigen Materialien
DE29504451U1 (de) * 1995-03-15 1995-05-11 Schiefer, Rolf, 41238 Mönchengladbach Vorrichtung zum Auftragen von flüssigen Medien

Also Published As

Publication number Publication date
JP3670390B2 (ja) 2005-07-13
ES2167481T3 (es) 2002-05-16
DE59608337D1 (de) 2002-01-17
DE19518604A1 (de) 1996-11-28
EP0744220A2 (fr) 1996-11-27
EP0744220A3 (fr) 1997-12-29
JPH08318196A (ja) 1996-12-03
US5862993A (en) 1999-01-26

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