EP1663509B1 - Corps de reglage pour regler la largeur de passage d'un interstice de dosage - Google Patents

Corps de reglage pour regler la largeur de passage d'un interstice de dosage Download PDF

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Publication number
EP1663509B1
EP1663509B1 EP04764707A EP04764707A EP1663509B1 EP 1663509 B1 EP1663509 B1 EP 1663509B1 EP 04764707 A EP04764707 A EP 04764707A EP 04764707 A EP04764707 A EP 04764707A EP 1663509 B1 EP1663509 B1 EP 1663509B1
Authority
EP
European Patent Office
Prior art keywords
positioning element
hollow member
sleeve section
hole
cylindrical hollow
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.)
Not-in-force
Application number
EP04764707A
Other languages
German (de)
English (en)
Other versions
EP1663509A1 (fr
Inventor
Waldemar Kiener
Johann Rein
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.)
Kiener Maschinenbau GmbH
Original Assignee
Kiener Maschinenbau 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 Kiener Maschinenbau GmbH filed Critical Kiener Maschinenbau GmbH
Publication of EP1663509A1 publication Critical patent/EP1663509A1/fr
Application granted granted Critical
Publication of EP1663509B1 publication Critical patent/EP1663509B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled

Definitions

  • the invention relates to a setting body for setting a working width of a metering gap in a device for applying fluid medium according to the preamble of claim 1.
  • Such adjusting bodies are used in devices for the flowable application of a hot melt adhesive to a material web.
  • a control body is made EP-B-1 181 105 known.
  • This device comprises a coating head having a slot nozzle arrangement for discharging the adhesive.
  • a central distribution channel is provided in the coating head, through which the adhesive is fed via a metering gap of a slot nozzle arrangement.
  • at least one actuating body is provided in the distributor channel, which is arranged to be rotatable at least radially in the distributor channel.
  • slot bores are provided axially spaced from each other, which, depending on the rotation, form a different size of the passage between the distributor channel and the metering gap. Thereby, the amount of the adhesive can be determined, which reaches the slot nozzle arrangement.
  • the at least radially movable actuating body in the housing of the device is known to provide O-ring seals, to prevent lateral leakage of the adhesive.
  • This arrangement of a sealing ring for sealing the distributor channel and for rotatably receiving the adjusting body in the distribution channel has the disadvantage that this sealing arrangement is subject to high wear due to the high temperatures of the hot melt adhesive as well as by the adjusting movements of the adjusting body.
  • the invention is therefore based on the object to propose a control element, in which a low-wear and tight arrangement and recording of a control element in a housing for applying flowable medium, in particular for adjusting the working width, is possible.
  • the arrangement of at least one sleeve portion on the cylindrical hollow body, which is provided movably in a distribution channel of a device for discharging flowable medium, is made possible that a sealing as well as a sliding effect is achieved by the sleeve portion.
  • the sleeve portion surrounds the at least one passage in the cylindrical hollow body and is directly adjacent to a wall of the distribution channel.
  • At least one sleeve portion is fixed by an interference fit on the cylindrical hollow body.
  • the sleeve portion is preferably heated for positioning on the cylindrical hollow body, so that a widening in diameter is given to the sleeve portion is a simple application of the sleeve portion to the cylindrical hollow body.
  • This advantageous arrangement further has the advantage that when damage occurs or wear occurring replacement of the sleeve portion is given.
  • different sleeve sections can be applied to one and the same cylindrical hollow body, which, for example, are adapted to the different adhesive substances.
  • the cylindrical hollow body to increase the holding force has at least one knurled, embossed or grooved surface. Due to the knurled surface, an enlarged surface on the hollow cylinder can be achieved, whereby after the application of the at least one sleeve portion and the achievement of a press fit, a frictional and positive connection is created.
  • the longitudinally grooved surface additionally has the advantage that a sliding of the sleeve sections in the warmed-up state for mounting is facilitated.
  • At least one further sleeve section Between a first and at least one further sleeve section, according to a further advantageous embodiment of the invention, at least one. Ring section provided which are smaller in outer diameter than the or the sleeve portions are formed.
  • a further preferred embodiment of the invention provides that at least one sleeve portion and a ring portion are integrally connected to each other.
  • individual assemblies can be formed, which have one or more passages in the sleeve portion and can be applied in the desired order on the cylindrical hollow body. As a result, a simple assembly is given.
  • an expansion joint is formed between at least one ring portion and at least one sleeve portion or between at least two mutually associated assemblies, which are formed by at least one sleeve portion and a ring portion. This ensures that the sleeve and ring sections or assemblies are positioned stress-free on the hollow body and length expansions can be compensated, since during the discharge of the adhesive, the interior of the actuating body is acted upon with heated adhesive.
  • each sleeve section are produced after the positioning of the at least one sleeve section on the hollow body. This facilitates the production. A radial alignment of the sleeve sections to existing openings in the hollow body is not required. These are introduced together after the application of the sleeve section. As a result, an exact alignment and positioning of the apertures in the actuator can be given.
  • the longitudinal axes of the apertures are preferably aligned eccentrically to the center of the hollow body.
  • the first provided passage is preferably almost tangential to a. Inner diameter of the cylindrical hollow body arranged so that a flow favorable exit of the adhesive is made possible. If one or more further passages are arranged, these advantageously border in each case to the wall of the preceding breakthrough whose longitudinal axis is formed such that the passages converge at least in the region of the wall thickness.
  • the sleeve portion is made of at least one sliding and dichtShem composite material.
  • the proportions and the structure of the composite material can be provided in many ways.
  • a base substance of Teflon enriched with bronze or the like may be provided.
  • Other material combinations are possible, which are both heat-resistant, have good storage properties as well as assume a sealing function.
  • FIG. 1 a device 11 for applying a flowable medium is shown in perspective on a material web, not shown.
  • material web is to be understood in a broad sense. This may include both woven and non-woven structures. Likewise, these may be breathable materials as well as films made of plastic or paper. In addition, the material web can already be coated or be pretreated or be a one, two or more layered composite of different components or coatings or materials. Furthermore, it can be provided that a single-layer or multilayer material is applied with one or more coatings of the flowable medium in order, for example, to seal a material web or to provide it with a specific breathable layer.
  • thermoplastic adhesives include, but are not limited to, thermoplastic adhesives, thermoplastic resins, reactive adhesives such as POR, high performance adhesives, and adhesives having a softening point or melting point of, for example, above 180 °.
  • further high or low viskosefonnecente fluids or media may be provided, which are warm and / or cold applied to the web through the device.
  • the flowable medium may also comprise fibrous additives or other admixtures which can be processed by the device according to the invention.
  • the device 11 is a so-called coating head which has a nozzle arrangement 19, in particular a slot die arrangement.
  • the device 11 consists of a first and second or upper and lower housing portion 21, 22, wherein the upper housing portion 21 advantageously along a parting plane 23 of the lower housing portion 22, preferably for cleaning, is removable.
  • bores 24 are provided, in which controllable heating elements are arranged.
  • a feed channel 28 is provided, to which a pump unit 29 is connected.
  • the pump unit 29 may include metering pumps as well as a buffer tank, a smelting unit or the like to suitably supply and supply the flowable medium to the supply passage 28.
  • the feed channel 28 opens into a distributor channel 31, which extends preferably parallel to the slot nozzle arrangement 19 over the entire width of the housing section 21.
  • a distributor channel 31 which extends preferably parallel to the slot nozzle arrangement 19 over the entire width of the housing section 21.
  • From the distribution channel 31 lead supply channels 32 in a metering gap 34, which is, for example, in the parting plane 23.
  • a template 36 is arranged, which has segment-shaped channels 37. These segment-shaped channels 37 are formed, for example, kelch-, V-, or U-shaped.
  • the supply channels 32 preferably open completely into the segment-shaped channels 37.
  • the template 36 may be formed in thickness and geometry to apply a desired mass of flowable medium.
  • the template 36 is arranged interchangeably in the metering gap 34.
  • the metering gap 34 has at its outer end to an upper and lower discharge lip 38, 39 and forms a so-called Abquetsch components and simultaneously guides the web material on the outside tangentially along.
  • valves 42 which serve to regulate the flow rate of the medium from the supply channel 32 in the segment-shaped channel 37.
  • the valves 42 have an adjustable needle 43 with a tapered or conical tip that is positionable in the supply channel 32. Due to the variable setting of the valves 42, a flow rate that is the same for all supply channels 32 is made possible as a basic setting. Alternatively it can be provided that these valves 42 an additional connection and disconnection for the adjustment of a working width of a metering gap 34 used and also be controlled.
  • a setting member 46 of a setting unit 47 is arranged, which is axially and / or radially movable in the distribution channel 31.
  • the adjusting body 46 is tubular and has an open end to the center of the nozzle assembly 19. To the outer edge region of the housing portion 21 of the actuating body is closed by a closure element 48 or a sealing plug.
  • the actuator 46 is shown schematically. At a left end, a flange 51 and a receptacle 52 is provided, through which the adjusting body 46 is exchangeably received and controlled via the setting unit 47. Adjacent to the flange 51 is a bore 53 is provided, which allows as adjustment for the exact radial alignment of the actuating body 46 in the distribution channel 31 and the supply channels 32.
  • a dipping into the distribution channel 31 section comprises a plurality of sleeve portions 54 and ring portions 56 which are arranged according to the embodiment in Figure 2 alternately to each other on the cylindrical hollow body 58.
  • the adjusting body 46 has the outer housing portion 22 associated with a first sleeve portion 54 which comprises a through hole 59 which forms a passage 61 between the manifold 31 and the interior of the hollow body 58 and a supply channel 32. Adjacent to the first sleeve portion 54, a ring portion 56 is provided. This ring portion 56 is smaller in outer diameter than the sleeve portion 54 is formed. A second sleeve section 54 in turn adjoins this annular section 56, which, for example, comprises two through-holes 59. The first through hole 59 of the second sleeve portion 54 is disposed at a first radial position 66.
  • the second through-hole 59 of the second sleeve portion 54 is arranged at a radial position 67.
  • a third through-hole 59 on the third sleeve portion 54 is disposed at a third radial position 68, etc.
  • the arrangement of the through-holes 59 is illustrated, for example, in FIG. 3, which corresponds to a sectional view along the line II - II in FIG.
  • the first through hole 59 extends substantially tangentially to the interior of the hollow body 58.
  • the second through hole 59 is arranged at an angle to the first through hole 59, so that within the wall thickness of the hollow body 38, the holes at least partially cut or adjacent to each other.
  • the further provided through-hole 59 are formed analogously.
  • the sleeve portion 54 is heated for positioning on the hollow body 58, so that the inner diameter of the sleeve portion 54 relative to the outer diameter of the hollow body 58 is increased. After cooling, the sleeve portion 54 is preferably fixed to the hollow body 58 via a press fit or an interference fit.
  • a knurling on the hollow body 58 may be applied.
  • a corrugation running along the longitudinal axis or a diamond-shaped corrugation or the like can be applied. It can also be provided that a heat-resistant adhesive is introduced between the sleeve portion 54 and the hollow body 58 in order to secure the interference fit.
  • the sleeve portion 54 is formed according to a first advantageous embodiment as an annular element which is at least slightly wider than the diameter of a through hole 59 is formed.
  • the ring portion 56 is also annular as a single element and may be fixed in analogy to the sleeve portion 54 on the cylindrical hollow body 58.
  • the annular portion 56 substantially serves to space two mutually spaced sleeve portions 54.
  • the reduced outer diameter of the annular portion 56 from that of the sleeve portion 54 allows for a reduction in driving force due to a reduced friction surface.
  • the at least one annular section 56 may optionally be provided between two sleeve sections 54.
  • an assembly 64 is formed, which comprises a plurality of sleeve portion 54 and ring portions 56.
  • two assemblies 64 are shown, wherein the two assemblies 64 in the transition region by an expansion joint 69 or a distance 69 to each other are arranged.
  • the assembly 64 is formed as a cylindrical body.
  • the outer diameter of the sleeve portions 54 and the ring portions 56 and the width of the sleeve portions 54 and ring portions 56 may be fixed.
  • the width of the ring portions 56 is dependent on the distance of the distribution channels 32 and the size of the distribution channels 32.
  • the sleeve portion 54 surrounds the through hole 59 completely, wherein the through hole 59 is smaller or equal to the diameter of the distribution channel 32 is formed.
  • the outer diameter of the sleeve portion 54 is adapted to the size of the distribution channel 31, so that a rotation for adjusting the actuator 46 is allowed, but at the same time a sealing arrangement between the through hole 51 and the adjoining wall portion of the distribution channel 31 is provided.
  • the through-holes 59 are preferably introduced after the application of the assembly 64 or individual sleeve sections 54 and ring sections 56 and ring sections 56 arranged therebetween.
  • a body which corresponds to an assembly 64.
  • This body is used, for example, in a strongly cooled state in the distribution channel 31 and forms a press fit to the distribution channel 31.
  • the adjusting body 46 is formed as a hollow body 58 and is inserted into the inserted and pressed-in the distribution channel assembly 64 and guided.

Landscapes

  • Coating Apparatus (AREA)
  • Stored Programmes (AREA)
  • Paper (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (10)

  1. Corps de réglage pour ajuster la largeur de travail d'un interstice de dosage (34) dans un dispositif (11) pour appliquer un milieu coulant avec un corps creux cylindrique (58) qui est fermé à une extrémité du côté de l'entraînement, et qui présente dans le corps creux cylindrique (58), au moins un alésage de passage (59), lequel forme un passage (61) entre l'au moins un canal de distribution (31) et l'interstice de dosage (34), caractérisé en ce que l'on monte sur le corps creux cylindrique (58) au moins une portion de douille (54) qui est réalisée sous forme d'élément d'étanchéité et de glissement et qui entoure au moins un alésage de passage (59) ou un groupe d'alésages de passage (59).
  2. Corps de réglage selon la revendication 1, caractérisé en ce que l'au moins une portion de douille (54) est fixée par ajustage serré sur le corps creux cylindrique (58).
  3. Corps de réglage selon la revendication 1 ou 2, caractérisé en ce que le corps creux cylindrique (58) présente au moins une surface moletée ou à rainures longitudinales ou gaufrée pour augmenter la force de retenue à l'au moins une portion de douille (54).
  4. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une portion annulaire (56) est prévue entre une première portion de douille (54) et une portion de douille supplémentaire, laquelle portion annulaire a un diamètre extérieur plus petit que celui de la ou des portions de douille (54).
  5. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une portion de douille (54) et une portion annulaire (56) sont connectées d'une seule pièce l'une à l'autre et forment un module (64).
  6. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'entre une portion annulaire (56) et une portion de douille (54), ou entre deux modules (64) associés l'un à l'autre, est réalisé un joint de dilatation.
  7. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce que le ou les alésages de passage (59) de chaque portion de douille (54) sont fabriqués après le positionnement de la portion de douille (54) sur le corps creux cylindrique (58).
  8. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe longitudinal de l'au moins un alésage de passage (59) s'étend de manière excentrée par rapport au centre du corps creux (58).
  9. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe longitudinal de l'alésage de passage supplémentaire (59) est radialement incliné par rapport à l'axe longitudinal de l'alésage de passage précédent et est disposé en dehors du centre du corps creux (58).
  10. Corps de réglage selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion de douille (54) est réalisée au moins sous forme de matériau composite glissant ou hermétique.
EP04764707A 2003-09-02 2004-09-02 Corps de reglage pour regler la largeur de passage d'un interstice de dosage Not-in-force EP1663509B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340768A DE10340768A1 (de) 2003-09-02 2003-09-02 Stellkörper zur Einstellung einer Arbeitsbreite eines Dosierspaltes
PCT/EP2004/009746 WO2005023435A1 (fr) 2003-09-02 2004-09-02 Corps de reglage pour regler la largeur de passage d'un interstice de dosage

Publications (2)

Publication Number Publication Date
EP1663509A1 EP1663509A1 (fr) 2006-06-07
EP1663509B1 true EP1663509B1 (fr) 2007-08-22

Family

ID=34202366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764707A Not-in-force EP1663509B1 (fr) 2003-09-02 2004-09-02 Corps de reglage pour regler la largeur de passage d'un interstice de dosage

Country Status (5)

Country Link
US (1) US20060260540A1 (fr)
EP (1) EP1663509B1 (fr)
AT (1) ATE370798T1 (fr)
DE (2) DE10340768A1 (fr)
WO (1) WO2005023435A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2332487B1 (es) * 2007-11-06 2010-09-29 Jesus Fco. Barberan Latorre Perfeccionamientos en los cabezales de aplicacion de productos termofusibles con salida por ranura.
CN110328109A (zh) * 2019-07-31 2019-10-15 广州达森灯光股份有限公司 一种与通用点胶机搭配使用的点胶夹具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398635B (de) * 1992-08-28 1995-01-25 Berndorf Band Gmbh Vorrichtung zur portionierten abgabe von fliessfähigen massen
KR100272064B1 (ko) * 1992-10-27 2000-12-01 미우라 아끼라 다이 도장기
US5389150A (en) * 1993-03-26 1995-02-14 Eastman Kodak Company Coating hopper inserts
DE29908150U1 (de) * 1999-05-10 1999-08-05 Nordson Corporation, Westlake, Ohio Vorrichtung zum Auftragen von Fluid
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
DE10256641A1 (de) * 2002-12-03 2004-06-17 Kiener Maschinenbau Gmbh Verfahren zur Einstellung einer Arbeitsbreite einer Düsenanordnung zum Auftragen eines fließfähigen Mediums auf eine Materialbahn und eine Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
ATE370798T1 (de) 2007-09-15
WO2005023435A1 (fr) 2005-03-17
US20060260540A1 (en) 2006-11-23
DE502004004763D1 (de) 2007-10-04
DE10340768A1 (de) 2005-03-24
EP1663509A1 (fr) 2006-06-07

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