EP2248598B1 - Dispositif doté de plusieurs buses d'air sec et procédé de distribution de colle - Google Patents

Dispositif doté de plusieurs buses d'air sec et procédé de distribution de colle Download PDF

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Publication number
EP2248598B1
EP2248598B1 EP09159657A EP09159657A EP2248598B1 EP 2248598 B1 EP2248598 B1 EP 2248598B1 EP 09159657 A EP09159657 A EP 09159657A EP 09159657 A EP09159657 A EP 09159657A EP 2248598 B1 EP2248598 B1 EP 2248598B1
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EP
European Patent Office
Prior art keywords
adhesive
nozzle
gas
operating mode
moisture
Prior art date
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Active
Application number
EP09159657A
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German (de)
English (en)
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EP2248598A1 (fr
EP2248598B2 (fr
Inventor
Beatus Michael Ineichen
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Robatech AG
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Robatech AG
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Application filed by Robatech AG filed Critical Robatech AG
Priority to EP09159657.7A priority Critical patent/EP2248598B2/fr
Priority to PCT/EP2010/055989 priority patent/WO2010128019A1/fr
Publication of EP2248598A1 publication Critical patent/EP2248598A1/fr
Publication of EP2248598B1 publication Critical patent/EP2248598B1/fr
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    • 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
    • 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
    • B05C5/0225—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 characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet

Definitions

  • the invention relates to devices having a plurality of nozzle openings and switchable adhesive feeds, which is operable in a first operating mode or a second operating mode, wherein in the first operating mode through all nozzle openings adhesive (eg in the form of adhesive beads) are discharged and in the second mode of operation only by a smaller Number of nozzle openings adhesive (eg in the form of adhesive beads) are discharged.
  • the present invention relates to a device for applying a flowable moisture-curing medium (eg adhesive or sealant) to a workpiece.
  • a flowable moisture-curing medium eg adhesive or sealant
  • it is about the use of 1-component PUR adhesive.
  • the devices for this must be suitable for different applications or workpieces of different sizes to be bonded or sealed.
  • nozzles for example, in a common comb-like arrangement. Some of these nozzles can be closed with a slider or piston to adjust the application width. This type of device has the advantage that only those nozzles are actuated, which are actually required due to the dimensions of the workpiece. The other nozzles remain closed.
  • WO 92/07121 discloses a metering device comprising air channels in the region of the nozzle openings, these air channels serving to convey the adhesive in order to improve the flow of the adhesive through the nozzle opening.
  • One-component adhesives are known which cure once they come into contact with moisture. These adhesives are sometimes referred to as moisture-curing cold glue or moisture-curing adhesive. As soon as these adhesives come in contact with moisture, the crosslinking process begins, which ultimately leads to the curing of the adhesive. Once the adhesive has cured, it can no longer be converted into the liquid form, as is the case with hot glue, for example.
  • membrane-based application systems are used to deliver or apply such moisture-curing adhesives, as the diaphragm valves provide good sealing between the adhesive and the air.
  • the membrane-based application systems have a number of disadvantages. Among others, the tolerated Diaphragm valves no pressures above 20 bar. In addition, the life (calculated in number of valve strokes) is relatively low and the diaphragm valves are expensive.
  • the object was to provide a device for applying a flowable medium, which is adaptively adaptable to different large workpieces or application conditions and avoids the mentioned disadvantages of premature curing or soiling as far as possible.
  • the object is to provide a device for applying a flowable medium, which allow working with a large distance between the nozzle and the material and which makes it possible that the medium forms an intimate connection with the material.
  • the task is to create a corresponding method.
  • the object is achieved by a device according to claim 1 and by a method according to claim 8.
  • a first device is equipped with a plurality of nozzle openings and switchable adhesive feeders, each nozzle of the apparatus having a needle or piston valve (preferably electromagnetically driven).
  • the apparatus may be operated in a first mode of operation and in a second mode of operation, wherein in the first mode of operation adhesive (e.g., in the form of adhesive beads) is dispensed through all nozzle openings.
  • adhesive e.g., in the form of adhesive beads
  • glue e.g., in the form of adhesive beads
  • Each nozzle opening is formed on or in a housing in which an adhesive channel for supplying the adhesive to the nozzle opening is present.
  • the housing comprises a flow chamber in the region of the nozzle opening and a gas supply, which is connected to the flow chamber.
  • the device has an outlet opening in the region of the nozzle opening, which is arranged so that upon supply of gas through the gas supply into the flow chamber and the supply of adhesive through the adhesive channel to the nozzle opening, through the outlet opening simultaneously adhesive and gas is discharged.
  • the gas stream that exits with the adhesive has two main functions. On the one hand, the gas stream prevents the settling or depositing of adhesive residues at the nozzle opening or in its surroundings. On the other hand, the gas stream provides a gas jacket, which prevents the curing of the adhesive in the region of the nozzle opening. As a result, it is possible to realize devices whose nozzle openings can be switched on or off as required without premature drying or curing of the adhesive.
  • the invention is particularly suitable for moisture-curing (moisture-curing) adhesives.
  • a dry gas eg, a dried air stream
  • gas continues to flow through the outlet opening of this nozzle in order to protect the nozzle or its surroundings from curing of the adhesive, even when switched off.
  • This embodiment is particularly advantageous, since the device can be configured as required by switching individual nozzles on or off, without premature curing of the adhesive taking place.
  • PUR Polyurethane adhesive
  • MAK value maximum workplace concentrations
  • Fig. 1 is a device 10 with a plurality of nozzle openings 11.1 - 11.4 arranged in a row and with switchable adhesive feed lines 12.
  • This device 10 is operable in a first operating mode or a second operating mode.
  • the Fig. 1 is shown through all the nozzle openings 11.1 - 11.4 through adhesive (here adhesive beads) KR delivered.
  • adhesive here adhesive beads
  • Each of the nozzle openings 11.1 - 11.4 is formed on or in a housing 13.1 - 13.4.
  • the housing / s 13.1 - 13.4 have an adhesive channel 15 (see, eg Fig. 3 ) for supplying the adhesive K to the nozzle opening 11.1 - 11.4.
  • Fig. 1 is indicated that the adhesive K via hoses or tubes 12 the adhesive channel 15 or the adhesive channels 15 is supplied.
  • a flow chamber 16 in the immediate region of the nozzle opening 11.1 - 11.4 arranged. Details are the Fig. 3 refer to.
  • a gas supply 17 is connected to the flow chamber 16. In Fig. 1 this gas supply 17 is indicated schematically by a thin line. In practice, this gas supply 17 has a larger diameter because of the required gas flow, or it is per nozzle opening 11.1 - 11.4 own gas supply 17 available.
  • the device 10 each comprises an outlet opening 14.1 - 14.4 (see, for example Fig. 3 ) in the region of each of the nozzle openings 11.1 - 11.4.
  • the outlet openings 14.1 - 14.4 are arranged so that when supplying gas G through the gas supply 17 into the flow chamber 16 and the supply of adhesive K through the adhesive channel 12 to the nozzle opening 11.1 - 11.4 through the outlet opening 14.1 - 14.4 at the same adhesive K and gas G are deliverable.
  • the exiting gas G and the outlet openings 14.1 - 14.4 are in Fig. 1 not recognizable.
  • Fig. 1 shows the following exemplary further details.
  • a plurality of adhesive beads KR are dispensed parallel to one another onto a material M (also called a material) with the device 10. It is provided for this purpose, a relative movement V between the device 10 and the material M.
  • Fig. 1 It can be seen that one housing or housing part 13.n can be provided per nozzle opening 11.n. But it is also conceivable that all nozzle openings are housed 11.n in a common housing. If a housing or housing part 13.n is provided per nozzle opening 11.n, then an adhesive feed 12 and / or a gas feed 17 is preferably also provided per nozzle opening 11.n.
  • the individual flow chamber 16 and the outlet opening 14.1 - 14.4 arranged in relation to the respective nozzle opening 11.1 - 11.4 so that the gas G forms a gas jacket around the adhesive K around.
  • This principle is in Fig. 3 indicated schematically, where it is shown that a leaking adhesive bead KR is surrounded by a slightly conical gas jacket G.
  • the device 10 is designed in such a way that all the nozzle openings 11.1 - 11.4 can always be supplied with the gas G through the gas supply 17 both in the first operating mode and in the second operating mode.
  • a sufficiently powerful gas source 20 must be used, which is able to permanently provide a gas volume flow of sufficient size.
  • the device 10 operates with a pressure tank 21 as a buffer between the gas source 20 and the flow chambers 16.
  • the pressure tank 21 is optional.
  • FIG. 2A another device 10 of the invention is shown in a schematic plan view.
  • the device also comprises four nozzle openings 11.1 - 11.4 arranged in a row here. That is to say, the nozzle openings 11.1 - 11.4 sit along a common line L.
  • the nozzle openings 11.1 - 11.4 can, however, also be grouped in a different arrangement (eg staggered relative to one another).
  • device 10 is operated in the moment shown in the first mode of operation. In this mode, adhesive beads KR are delivered through all the nozzle openings 11.1-11.4. This results in a first application width transverse to the movement V of the material M, which is designated here by B1.
  • Fig. 2B the same device 10 of the invention is shown in a schematic plan view.
  • device 10 is operated in the moment shown in the second mode of operation.
  • less than four nozzle openings 11.1 - 11.4 (here the nozzle openings 11.1 and 11.2) are supplied with adhesive K. Therefore, only two adhesive beads KR are produced.
  • B2 is smaller than B1.
  • Fig. 2C the same device 10 of the invention is shown in a schematic plan view.
  • device 10 is operated in the moment shown in a third mode of operation.
  • less than four nozzle openings 11.1 - 11.4 (here the nozzle openings 11.1, 11.2 and 11.4) are supplied with adhesive K. Therefore, only three adhesive beads KR are produced in this example. This results in an application width transverse to the movement V of the material M, which corresponds to the application width B1, wherein, however, the distance between two of the adhesive beads KR is greater.
  • Fig. 3 shows a section through a part of a further embodiment of the invention. It is the section through a housing 13.1 shown with a nozzle opening 11.1.
  • the adhesive K is guided from the right through an adhesive channel 15 into a nozzle chamber 18 of the housing 13.1.
  • a nozzle needle 19 can be moved up and down to open or close the nozzle opening 11.1.
  • the individual flow chamber 16 surrounds a lower portion of the nozzle 24 at 360 degrees. That is, the flow chamber 16 is arranged rotationally symmetrically around the nozzle 24 around. This can be achieved by placing or attaching a cap-like housing 22 to the lower region of the nozzle 24.
  • a sealing ring 23 may be arranged in the upper area, as in FIG Fig. 3 indicated. Laterally (here from the right), the gas stream G is blown through a gas supply 17 into the flow chamber 16. The gas stream G circulates around the nozzles 24 as it enters the flow chamber 16, where it leads to a cooling effect if cold gas G is introduced. If you want to prevent premature cooling, the gas G is preheated.
  • Fig. 4 shows a view of a part of another embodiment of the invention. It is a view of a housing 13.n shown with a nozzle 24 with nozzle opening 11.n. The nozzle 24 and the nozzle opening 11.n are shown in dashed lines, since they are surrounded by a cap-like housing 22 are having a sealing ring 23 or a rubber-like sealing collar above.
  • the gas flow G is injected at such a pressure in the flow chamber 16 that there is an overpressure. Due to this overpressure, gas G, together with the adhesive K, exits downwards through an outlet opening 14.1.
  • the gas G encases the adhesive bead KR as indicated.
  • the housing 22 is designed so that the outlet opening 14.1 is formed in the housing 22.
  • the outlet opening 14.1 can also be provided on the housing 13.1 of the nozzle 24.
  • each nozzle opening 11.n is individually switchable, which can be achieved, for example, with an electromagnetically movable nozzle needle 19 in a nozzle chamber 18.
  • a cap-like housing 22 made of a plastic material or rubber material is used, which can be inserted by hand over the nozzles and replaced if necessary.
  • the cap-like housing 22 may have a side gas port 17 for connection to a gas source 20, as in FIG Fig. 4 shown.
  • the adhesive supply and / or the gas supply can be completely controlled by a controller 30 (clocked switched on and off).
  • the controller 30 is in Fig. 1 indicated schematically.
  • a device 10 according to the invention can be equipped with various control and control elements in order to be able to monitor the method according to the invention. These control and control members can be controlled by the controller 30, for example.
  • the mentioned gas source 20 and / or the pressure tank 21 is / are preferably provided in the various embodiments with a sensor 32 which, like a hygrometer, measures the moisture content of the air.
  • the dried gas (preferably in the form of dried air) preferably has a relative humidity 46 in a range of 0-0.5%, preferably 0.45%.
  • Particularly preferred is one of the devices 10 previously described, but which is designed so that the gas stream G exiting the exit opening 14.n has a dew point (or dew point temperature) of 40 ° C atm.
  • the gas source 20 and / or the pressure tank 21 are designed so that exits per nozzle opening 11.n between 1 and 1.5 standard liters of gas per minute through the outlet opening 14.n. Per day and nozzle opening 11.n you need about 40 m 3 of dry gas. By providing the individual flow chambers per nozzle, the consumption of dry gas can be kept relatively small.
  • the gas source 20 In a device 10 with twenty nozzle openings 11.1 - 11.20, the gas source 20 must thus be able to produce about 20 to 30 standard liters of gas per minute.
  • the nozzle orifices 11.n which are not needed, are immersed in a liquid bath containing a liquid which prevents the adhesive from curing. In this case, no gas G must be supplied to the respective nozzles 24 as soon as the nozzles 24 are immersed in the liquid.
  • a compressed-air refrigerant dryer or an adsorption dryer or a membrane or disk dryer is used as the gas source 20.
  • the device 10 in addition to the flow chamber 16 per nozzle on a protective chamber 40 with a protective medium SM.
  • the protective chamber 40 is arranged in the rear region of the needle or piston valve so that the needle or the piston 19 of the valve penetrates the protective chamber 40.
  • Fig. 5 statically in the protective chamber 40
  • the protective chamber 40 dynamic flows through
  • FIG. 2 shows the example of an embodiment of a device 10 equipped with a protective chamber 40 containing the protective medium SM (here a liquid).
  • the needle or the piston 19 of the valve has at its output end here a spherical shape 44. However, it may also have a different shape.
  • a spherical shape 44 At the rear end of the needle or piston 19, it penetrates a chamber 40, as shown.
  • the needle or piston 19 is enclosed by sealing elements (eg, sealing rings) to prevent or reduce the backward leakage of adhesive K.
  • seals 41, 42 are disposed immediately below and above the protection chamber 40.
  • a channel 43 or a reservoir for the protective medium SM is provided, as in Fig. 5 to recognize. Should during an up and down movement (in Fig.
  • Fig. 6 the example of an embodiment of a device 10 is shown, which is equipped with a protective chamber 40, in which the protective medium SM (here a liquid) is introduced via a feed channel 43.1 and removed via a discharge channel 43.2.
  • the needle or the piston 19 of the valve has a slightly pointed shape at its output end here. But it can also have a different shape.
  • the needle or piston 19 is enclosed by sealing elements (eg, sealing rings) to prevent or reduce the backward leakage of adhesive K.
  • seals 41, 42 are disposed immediately below and above the protection chamber 40. Laterally, a reservoir may be provided for the protective medium SM, which in Fig. 6 can not be seen.
  • a liquid is used as the protective medium SM.
  • a solvent liquid which serves as a solvent for the adhesive K, which is processed in the device 10. If smaller adhesive residues should escape to the rear, these residues in the protective chamber 40 are virtually dissolved by the solvent. There is therefore no lumping and damage to the seal (s).
  • Ruetasolv (from RKS GmbH, Germany) has proven to be particularly suitable as a solvent for 1-K PUR adhesive, since this solvent is also used as a softener in this adhesive becomes.
  • the protective medium SM is moved in the protective chamber 40, that is, is conveyed, as by means of an exemplary embodiment in FIG Fig. 6 shown.
  • a small pumping system which keeps the protective medium SM in motion so that never a supersaturation of the protective medium SM can occur with adhesive residues.
  • the described devices 10 have a long service life and can easily complete significantly more than 100,000 strokes of the nozzle valves without maintenance. It can even be reached 1'000'000 strokes.
  • the present invention is particularly suitable for use in the wood industry, where, for example, load bearing roof beams with high reliability.
  • distances L between the nozzle and material M which are larger than 20 mm and preferably up to 50 mm can be made possible.
  • the solution according to the invention can also be used in the "near range” e.g. between 2 and 5 mm distance.
  • the invention enables a precise and intimate wetting of the material M, since the adhesive K is discharged at a high exit speed.
  • the measures described, the maintenance costs compared to conventional devices is significantly lower.

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  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (12)

  1. Dispositif (10) comprenant plusieurs ouvertures de buse (11.1 - 11.4) et plusieurs alimentations de colle (12, 15) commutables, lesquelles peuvent être actionnées dans un premier mode ou un deuxième mode de fonctionnement, dans lequel, dans le premier mode de fonctionnement, de la colle durcissant à l'humidité (K) étant délivrée par toutes les ouvertures de buse (11.1 - 11.4) et, dans le deuxième mode de fonctionnement, la colle durcissant à l'humidité (K) n'étant délivrée que par un nombre réduit d'ouvertures de buse (11.1 -11.2), dans lequel :
    - chaque ouverture de buse (11.1 - 11.4) étant formée sur ou dans un boîtier (13.1 - 13.4) dans lequel il y a un canal de colle (15) pour amener la colle durcissant à l'humidité (K) à l'ouverture de buse (11.1 - 11.4),
    - il est agencé une chambre d'écoulement (16) dans la zone de l'ouverture de buse (11.1 - 11.4),
    - une alimentation de gaz (17) est reliée à la chambre d'écoulement (16),
    - le dispositif (10) présente une ouverture de sortie (14.1 - 14.4) dans la zone de l'ouverture de buse (11.1 - 11.4) qui est agencée de telle manière que lors de l'amenée du gaz sec (G) par l'alimentation de gaz (17) dans la chambre d'écoulement (16), et lors de l'amenée de la colle durcissant à l'humidité (K) à travers le canal de colle (K) jusqu'à l'ouverture de buse (11.1
    - 11.4), la colle durcissant à l'humidité (K) et le gaz sec (G) peuvent traverser en même temps l'ouverture de sortie (14.1 - 14.4),
    caractérisé en ce que le dispositif (10) comprend une source de gaz (20) qui est conçue pour approvisionner et amener en permanence pendant le fonctionnement du dispositif (10) un volume de gaz sec de façon à ce que toutes les ouvertures de buse (11.1 - 11.4), aussi bien dans le premier mode de fonctionnement que dans le deuxième mode de fonctionnement, soient constamment approvisionnées en gaz sec (G) par l'alimentation de gaz (17), la source de gaz comprenant un sécheur réfrigérant à air comprimé ou un sécheur à absorption ou un sécheur à membranes ou à lamelles.
  2. Dispositif (10) selon la revendication 1, caractérisé en ce que la chambre d'écoulement (16) et l'ouverture de sortie (14.1 - 14.4) sont agencées de telle façon par rapport à l'ouverture de buse (11.1 - 11.4) que le gaz sec (G) forme une enveloppe de gaz tout autour de la colle durcissant à l'humidité (K).
  3. Dispositif (10) selon l'une des revendications 1 à 2, caractérisé en ce que l'ensemble des ouvertures de buse (11.1 - 11.4), aussi bien dans le premier mode de fonctionnement que dans le deuxième mode de fonctionnement, peuvent être alimentées en permanence en gaz sec (G) par l'alimentation en gaz (17).
  4. Dispositif (10) selon l'une des revendications précédentes, caractérisé en ce que la chambre d'écoulement (16) est formée par un boîtier de type chapeau (22).
  5. Dispositif (10) selon l'une des revendications précédentes, caractérisé en ce qu'il comprend, par ouverture de buse (11.1 - 11.4), une soupape haute pression, à pointeau ou à piston.
  6. Dispositif (10) selon la revendication 5, caractérisé en ce qu'il comprend une chambre de protection (40) à l'arrière de la soupape à pointeau ou à piston, laquelle entoure hermétiquement un pointeau ou un piston (19) de la soupape à pointeau ou à piston.
  7. Dispositif (10) selon la revendication 6, caractérisé en ce que la chambre de protection (40) est remplie d'un liquide ou d'air sec faisant office de fluide de protection (SM).
  8. Procédé de distribution à plusieurs lignes ou bandes de colle (KR) agencées parallèlement de colle durcissant à l'humidité (K) via plusieurs ouvertures de buse (11.1 - 11.4) sur un matériau (M), comprenant les étapes consistant à :
    - approvisionner en gaz sec (G),
    - apporter le gaz sec (G) dans des chambres d'écoulement individuelles (16) agencées dans la zone de chaque ouverture de buse (11.1 - 11.4),
    - choisir un premier mode de fonctionnement ou un deuxième mode de fonctionnement, dans le premier mode de fonctionnement la colle durcissant à l'humidité (K) étant distribuée par toutes les ouvertures de buse (11.1 - 11.4), et dans le deuxième mode de fonctionnement la colle durcissant à l'humidité (K) étant distribuée uniquement par un nombre réduit d'ouvertures de buse (11.1 - 11.2),
    - apporter la colle durcissant à l'humidité (K) dans des chambres de buse (18) pouvant être allumées ou éteintes individuellement,
    o la colle durcissant à l'humidité (K) sortant sous la forme de lignes ou bandes de colle (KR) des différentes ouvertures de buse (11.1 - 11.4) qui sont allumées selon le choix du mode de fonctionnement,
    o le gaz sec (G) formant autour des lignes ou bandes de colles (KR) une enveloppe de gaz, et
    o du gaz sec (G) s'écoulant également des ouvertures de buse (11.1 - 11.4) éteintes.
  9. Procédé selon la revendication 8, caractérisé en ce qu'une partie ou la totalité des ouvertures de buse (11.1 - 11.4) sont immergées dans un liquide dans le cas ou une partie ou la totalité des ouvertures de buse (11.1 - 11.4) ne sont pas en fonctionnement.
  10. Procédé selon la revendication 9, caractérisé en ce qu'une source de gaz (20) distribue par ouverture de buse (11.n) entre 1 et 1,5 litre normalisé par minute.
  11. Procédé selon l'une des revendications 8, 9 ou 10, caractérisé en ce que les lignes ou bandes de colle (KR), après être sorties des ouvertures de buse (11.1 - 11.4), ont une vitesse de jet supérieure à 4 m/s, de préférence comprise entre 4 m/s et 12 m/s.
  12. Procédé selon la revendication 8, caractérisé en ce qu'il est utilisé des soupapes haute pression, à pointeau ou à piston qui fonctionnent avec une pression interne supérieure à 30 bar, de préférence dans une plage comprise entre 35 bar et 100 bar.
EP09159657.7A 2009-05-07 2009-05-07 Dispositif doté de plusieurs buses d'air sec et procédé de distribution de colle Active EP2248598B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09159657.7A EP2248598B2 (fr) 2009-05-07 2009-05-07 Dispositif doté de plusieurs buses d'air sec et procédé de distribution de colle
PCT/EP2010/055989 WO2010128019A1 (fr) 2009-05-07 2010-05-03 Dispositif comprenant plusieurs buses à air sec et procédé pour émettre un adhésif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09159657.7A EP2248598B2 (fr) 2009-05-07 2009-05-07 Dispositif doté de plusieurs buses d'air sec et procédé de distribution de colle

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EP2248598A1 EP2248598A1 (fr) 2010-11-10
EP2248598B1 true EP2248598B1 (fr) 2012-11-14
EP2248598B2 EP2248598B2 (fr) 2016-06-08

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MX2014012688A (es) 2013-11-29 2015-05-28 Müller Martini Holding AG Un metodo para aplicar una sustancia fluida.
DE102016014092A1 (de) * 2016-11-28 2018-05-30 Illinois Tool Works, Inc. Verfahren zum Schützen einer Klebstoff-Abgabevorrichtung und selbige
DE102017100861A1 (de) 2017-01-18 2018-07-19 HELLA GmbH & Co. KGaA Vorrichtung zur vorrübergehenden Ruhestellung einer Einrichtung für den Klebstoffauftrag
US20220323989A1 (en) * 2020-09-08 2022-10-13 Denso Ten Limited Application device and application method

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DK157833C (da) * 1988-03-01 1991-04-29 Dansk Transfertryk Fremgangsmaade til laminering af tekstiler
US5145689A (en) 1990-10-17 1992-09-08 Exxon Chemical Patents Inc. Meltblowing die
IE940697A1 (en) * 1994-09-06 1996-03-06 Loctite Ireland Ltd Applicator for liquids such as adhesives
DE4446027A1 (de) * 1994-12-23 1996-07-04 Henkel Kgaa Formteile aus PU-Schmelzklebstoffen
US5618566A (en) * 1995-04-26 1997-04-08 Exxon Chemical Patents, Inc. Modular meltblowing die
US6220843B1 (en) * 1998-03-13 2001-04-24 Nordson Corporation Segmented die for applying hot melt adhesives or other polymer melts

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WO2010128019A1 (fr) 2010-11-11
EP2248598B2 (fr) 2016-06-08

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