EP1729890B1 - Dispositif pour distribuer de la colle sur une surface - Google Patents

Dispositif pour distribuer de la colle sur une surface Download PDF

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Publication number
EP1729890B1
EP1729890B1 EP05722032.9A EP05722032A EP1729890B1 EP 1729890 B1 EP1729890 B1 EP 1729890B1 EP 05722032 A EP05722032 A EP 05722032A EP 1729890 B1 EP1729890 B1 EP 1729890B1
Authority
EP
European Patent Office
Prior art keywords
glue
distribution
opening
distributing device
chamber
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
EP05722032.9A
Other languages
German (de)
English (en)
Other versions
EP1729890A1 (fr
Inventor
Daniel Bonne
Pieter Broekman
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.)
D Bonne Mechanisatie BV
Original Assignee
D Bonne Mechanisatie BV
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Filing date
Publication date
Application filed by D Bonne Mechanisatie BV filed Critical D Bonne Mechanisatie BV
Publication of EP1729890A1 publication Critical patent/EP1729890A1/fr
Application granted granted Critical
Publication of EP1729890B1 publication Critical patent/EP1729890B1/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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated

Definitions

  • the present invention relates to a device for distributing glue and relates in particular to a glue distributing device for substantially evenly distributing glue over a surface, the glue distributing device extending substantially in at least a first direction.
  • the glue distributing device comprises a main distribution chamber for substantially evenly distributing the glue in said first direction, the main distribution chamber comprising a number of outlet openings for discharging the glue from the distributing device and applying it to said surface; a predistribution chamber for at least partially evenly distributing the glue in said first direction, the predistribution chamber comprising a number of distribution openings for supplying the glue from the predistribution chamber to the main distribution chamber; and at least one supply opening for supplying the glue to said predistribution chamber.
  • the present invention furthermore relates to a glue distributing assembly comprising said glue distributing device and to the use of the glue distributing device in distributing glue on a floor surface.
  • a glue distributing device of this type is known from US 5366309 which describes a device for applying glue to a floor surface.
  • the glue is pressed from a tank to a predistribution chamber using gas pressure, following which the glue flows to a main distribution chamber with outlet openings via a number of lines.
  • the known glue distributing device is, however, only suitable for relatively low-viscosity types of glue.
  • US 5366309 describes that the device is preferably suitable for types of glue having a viscosity in the range from 11,000 to 13,500 centipoise (11.0 - 13.5 Pa.s).
  • the known device is not suitable for highly viscous types of glue, such as the current environmentally friendly types of glue, as such glues cannot be pressed out of the outlet openings using gas pressure and because the glue does not spread well and therefore not as much glue will flow from each of the separate outlet openings. When using highly viscous types of glue, the known device will thus not produce an even distribution of the glue on the floor surface.
  • the invention provides a glue distributing device according to claim 1.
  • the amount of glue which flows through an opening per unit time depends on the pressure which is exerted on the glue and on the diameter of the opening.
  • One characteristic of a highly viscous liquid is that any pressure which is applied is absorbed locally by the liquid and therefore does not result in a spreading of the glue.
  • it is important for the glue distributing device that the pressure immediately behind the opening is relatively high when glue flows out of an opening, but that the pressure decreases relatively quickly as the distance to the opening increases.
  • the pressure behind the supply opening in the predistribution chamber is high.
  • the pressure decreases and a decreasing amount of glue will flow through the separate distribution openings of identical cross-sectional diameter.
  • the position and size having been chosen such that substantially the same amount of glue per unit time is supplied to the main distribution chamber in said first direction, distributed over the length of the main distribution chamber, a substantially uniform pressure distribution is produced in the main distribution chamber.
  • substantially the same amount of glue per unit time will flow from each outlet opening and an evenly distributed amount of glue will be applied to the surface, when the glue distributing device is moved over the surface in a second direction, which is essentially at right angles to said first direction.
  • uniform glue distribution means that the pressure on every location in the glue in different directions can have a different value, but that the pressure in a specific direction on every location is substantially uniform. This makes the pressure at each discharge opening substantially uniform in the direction of discharge and the same amount of glue per unit surface area and per unit time flows out of the distributing device.
  • the distance between each pair of successive distribution openings decreases as the distance of said pair of successive distribution openings to the supply opening in said direction increases.
  • the number of distribution openings per unit length increases.
  • the amount of glue which flows through an opening depends on the pressure applied and the diameter of the opening.
  • the cross-sectional area of each distribution opening increases as the distance of the respective distribution opening to said supply opening increases. As the distance to the supply opening increases, the pressure on the glue decreases.
  • the cross-sectional area of the opening increases, the pressure difference can be compensated in such a manner that, on balance, substantially the same amount of glue flows through each distribution opening. In this manner, a substantially uniform pressure distribution in the main distribution chamber is achieved.
  • the predistribution and/or main distribution chambers are preferably cylinder-shaped, with the cylinder extending in said first direction.
  • each distribution opening has a distribution opening normal line, which is at right angles to a plane of the distribution opening, in the centre of the distribution opening
  • each supply opening has a supply opening normal line, which is at right angles to a plane of the supply opening, in the centre of the supply opening.
  • none of the distribution opening normal lines coincides with a supply opening normal line. If these normal lines were to coincide, the glue flowing out of the supply opening under pressure would flow directly through the distribution opening which is in line with the supply opening. Only a small amount of glue will then spread in said first direction. If none of the distribution opening normal lines coincide with the supply opening normal line, the glue flowing out of the supply opening hits an inner wall of the distribution chamber and subsequently spreads in that distribution chamber.
  • the supply opening normal line crosses each distribution opening normal line. This means that none of the distribution openings are in line with supply openings and, in addition, that each distribution opening is also displaced with respect to a supply opening in said first direction. The pressure in each distribution opening will thus be directed in said first direction, which further assists a uniform distribution in said first direction.
  • each distribution opening has a distribution opening normal line which is at right angles to a plane of the distribution opening in the centre of the distribution opening and that each discharge opening has a discharge opening normal line which is at right angles to a plane of the discharge opening in the centre of the discharge opening, it is preferable, in the same manner as described above and with the same effect, if none of the distribution opening normal lines coincides with any of the discharge opening normal lines.
  • a throttle tube is arranged in the main distribution chamber.
  • the throttle tube collects the glue which enters the main distribution chamber via the distribution openings and distributes it further, before the glue reaches the discharge openings.
  • the throttle tube therefore assists in the pressure distribution becoming uniform.
  • a filter is arranged in the main distribution chamber.
  • the function of the filter is to filter the glue for contaminations, such as dirt and solidifications.
  • the filter ensures a further distribution of the glue in the main distribution chamber.
  • All the discharge openings preferably have a substantially identical diameter and/or a substantially identical distance between them in said first direction, so that substantially identical bands of glue are applied to the surface in an even pattern.
  • the device according to the present invention is in particular suitable for use for applying glue to a floor surface.
  • the glue distributing device may form part of a glue distributing assembly.
  • a glue distributing assembly comprises a tank for holding a quantity of glue; a glue distributing device according to the present invention; and a pump for moving the glue from the tank to said glue distributing device.
  • highly viscous glue in particular, is unsuitable to be moved by, for example, gas pressure.
  • a pump which is suitable for use with highly viscous liquids.
  • the glue is pumped from the tank to the distributing device by the pump.
  • the tank may be a specific tank or may be a packaging of the glue, such as, for example, a known plastic bucket, with the pump pumping the glue directly from the packaging. In that case, the glue does not first have to be transferred to a specific tank by an individual.
  • the assembly furthermore comprises a conveying hose, with the pump pumping the glue to the glue distributing device via the conveying hose.
  • a conveying hose is preferably flexible, so that the tank and the pump can be placed in a fixed position, while an individual can move the glue distributing device over the surface and thereby apply glue to the surface.
  • Such a configuration of the glue distributing assembly alleviates the work of said individual as the tank and the pump do not need to be displaced while the glue is being applied.
  • the assembly furthermore comprises a metering device, with which the amount of glue to be applied to a surface can be metered.
  • a metering device of this type may be a valve arranged in the connection between the pump and the distributing device, but may also be, for example, an electronic control of the pump.
  • Fig. 1 shows a glue distributing device 1 according to the present invention.
  • the glue distributing device comprises a main distribution chamber 2 provided with discharge openings 8.
  • a predistribution chamber 4 is arranged against the main distribution chamber 2.
  • a supply connection 6 comprises a glue supply opening to the predistribution chamber 4.
  • the distributing device 1 extends essentially along line A-A.
  • a section of the main distribution chamber 2 which is shown in Fig. 2 , walls 2A and 2B are shown.
  • the side wall 2A substantially forms a cylinder shape, which terminates with end walls 2B, which are preferably removable.
  • Distribution openings 10A and 10B form an open connection with the predistribution chamber.
  • the surface of the distribution opening 10A is smaller than the surface of the distribution opening 10B.
  • a throttle tube is arranged in the main distribution chamber 2, which throttle tube has been partially cut away in Fig. 2 in order to show distribution openings 10A and 10B and has therefore been indicated by means of throttle tube ends 12A and 12B.
  • a filter has been indicated by means of filter ends 14A and 14B, which filter is arranged in the main distribution chamber 2.
  • FIG. 3 A cross section along line B-B which is indicated in Fig. 1 is shown in Fig. 3.
  • Fig. 3 clearly shows that the main distribution chamber wall 2A forms a cylinder and that the throttle tube 12 is arranged in the centre of the section of the cylinder.
  • the filter 14 is arranged on the inside of the wall 2A.
  • the predistribution chamber 4 is arranged between the supply connection 6 and the main distribution chamber 2.
  • Fig. 3 one end of a supply hose 20 has been fitted, so that glue can flow through the supply hose 20 via a supply opening into the predistribution chamber 4.
  • Fig. 4 shows a side view of the glue distributing device, in which a discharge opening 8 is shown by a dotted line.
  • a discharge opening 8 is shown by a dotted line.
  • the end of the supply hose 20, the supply connection 6, the predistribution chamber 4 and the main distribution chamber 2 are positioned in line, whereas an axis 8A going through the discharge opening 8 is not parallel to said line.
  • Fig. 5 shows a section through the device along line C-C.
  • Fig. 5 shows the supply connection 6 with a supply opening 6A, the predistribution chamber 4 and the main distribution chamber 2.
  • the walls 2A and 2B form the main distribution chamber 2, which contains a throttle tube 12, indicated by ends 12A and 12B, and a filter, indicated by ends 14A and 14B.
  • the distribution openings 10A and 10B are of different width. Part of the main distribution chamber 2 has not been cut away and in that part, the discharge openings 8 have been indicated.
  • Fig. 6 shows a side view of the glue distributing device 1 in use.
  • the glue distributing device 1 moves over a surface S in the direction of the arrow R, while glue 16 flows through the supply hose 20 and is applied to the surface S via the supply connection 6, the predistribution chamber 4 and the main distribution chamber 2.
  • a suitable assembly for applying glue is shown in a block diagram.
  • the assembly comprises a tank or glue storage holder 22, a suitable pumping device 24, a supply hose 20 and a metering device 26.
  • the metering device 26 may also be located upstream of the pumping device 24, immediately downstream of the pumping device 24 or in the supply hose 20.
  • the metering device 26 may be a mechanical device, for example a valve or a tap, but the metering device 26 may also be an electronic control for the pumping device 24.
  • the metering device 26 can therefore also be in a different position within the assembly.
  • Glue or any desired other liquid
  • a storage holder 22 and a pumping device 24 suitable for highly viscous liquids such as glue for example a pneumatic grease gun with a preset pressure ratio and a suitable introduction mechanism, moves the glue through a hose 20 to a distributing device 1.
  • Glue which flows out of the distributing device 1 is substantially evenly distributed over a surface.
  • An application for which the embodiment shown is particularly suitable is the application of glue to a floor surface in order to subsequently affix floorboards, such as wooden floorboards, but for example carpeting as well, on said floor surface.
  • the tank 22 and the pumping device 24 can be placed in a fixed position, while the distributing device 1 can be moved over the surface, the supply hose preferably being flexible.
  • the glue distributing device 1 is suitable for all kinds of liquids, but is particularly suitable for highly viscous liquids, such as specific types of (floor) glue with a viscosity of up to 60,000 centipoise (60 Pa.s) or more.
  • the distributing device 1 contains a number of features in order to distribute the glue which is supplied via a supply opening in such a way through the device that eventually a substantially uniform pressure is present at each discharge opening 8 in a direction of discharge.
  • Glue which is supplied via a supply connection 6 flows into a predistribution chamber 4.
  • Fig. 5 shows that the glue cannot flow through to the main distribution chamber 2 immediately, but is forced to one side. This results in a change in the direction of the pressure, namely to the direction in which the distributing device 1 extends.
  • the pressure in the glue decreases. In the case of a highly viscous liquid, the pressure reduction is relatively rapid as the pressure is partially absorbed by the liquid.
  • a number of distribution openings 10A and 10B are provided between the predistribution chamber and the main distribution chamber 2 for through-flow to the main distribution chamber 2.
  • the distance between the individual distribution openings 10 is the same. In contrast with the embodiment shown, according to the invention this distance also decreases as the distance to the supply opening 6A increases. In this case, the cross-sectional areas may vary as described above or may stay the same. By varying said distance, it is possible to ensure that the same amount of glue per unit time flows into the main distribution chamber 2 along the entire direction into which the device substantially extends.
  • the glue may be pressed through a filter 14 and against a throttle tube 12 in the main distribution chamber 2 in order to further equalize the pressure.
  • the throttle tube 12 thus prevents the pressure of the influent glue from being exerted immediately onto the glue flowing out of the device 1 ( Fig. 6 ).
  • the main distribution chamber 2 fills with glue, or another liquid, which has such a uniform pressure distribution, that the same amount of glue 16 flows out of each discharge opening and the glue 16 is applied in bands on the surface S.
  • the two end walls 2B of the main distribution chamber 2 are preferably removable.
  • the advantage of such removability is that the main distribution chamber 2 and the filter 14 can be cleaned or replaced in a simple manner.
  • the device can also be cleaned using highly pressurized water if water-based glues have been used.
  • the distributing device can be designed for various suitable widths.
  • the width of the device can be adjusted, for example with the aid of extensions which are fastened to the device 1 instead of the end walls 2B. In this case, it is obviously preferable to make a corresponding extension to the predistribution chamber 4.

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  • Coating Apparatus (AREA)

Claims (14)

  1. Dispositif de distribution de colle (1) destiné à distribuer sensiblement régulièrement une colle (16) sur une surface (5), le dispositif de distribution de colle s'étendant sensiblement dans au moins une première direction et comprenant :
    - une chambre de distribution principale (2) destinée à distribuer sensiblement régulièrement la colle dans ladite première direction, la chambre de distribution comprenant un certain nombre d'ouvertures de décharge (8) destinées à décharger la colle du dispositif de distribution et à l'appliquer à ladite surface ;
    - une chambre de prédistribution (4) destinée à distribuer au moins partiellement régulièrement la colle dans ladite première direction, la chambre de prédistribution comprenant un certain nombre d'ouvertures de distribution (10A, 10B) destinées à délivrer la colle de la chambre de prédistribution à la chambre de distribution principale ; et
    - une ouverture (6A) destinée à délivrer la colle à ladite chambre de prédistribution,
    dans lequel chaque ouverture de distribution a une ligne normale d'ouverture de distribution, qui est perpendiculaire à un plan de l'ouverture de distribution, au centre de l'ouverture de distribution, et l'ouverture d'alimentation a une ligne normale d'ouverture d'alimentation, qui est perpendiculaire à un plan d'ouverture d'alimentation, au centre de l'ouverture d'alimentation, et dans lequel aucune des lignes normales d'ouvertures de distribution ne coïncide avec la ligne normale d'ouverture d'alimentation ; et dans lequel
    la position et la taille des ouvertures de distribution ont été choisies de sorte que, en utilisation, une distribution de pression sensiblement régulière de la colle dans la chambre de distribution principale est effectuée, et caractérisé en ce que la distance entre chaque paire d'ouvertures de distribution diminue à mesure que la distance de ladite paire d'ouvertures de distribution suivant l'ouverture d'alimentation dans ladite direction augmente.
  2. Dispositif de distribution de colle selon la revendication 1, dans lequel la ligne normale d'ouverture d'alimentation coupe chaque ligne normale d'ouverture de distribution.
  3. Dispositif de distribution de colle selon la revendication 1 ou 2, dans lequel la superficie transversale de chaque ouverture de distribution augmente à mesure que la distance de l'ouverture de distribution respective par rapport à ladite ouverture d'alimentation augmente.
  4. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel la chambre de prédistribution a une forme sensiblement cylindrique.
  5. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel la chambre de distribution principale a une forme sensiblement cylindrique.
  6. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel chaque ouverture de distribution a une ligne normale d'ouverture de distribution qui est perpendiculaire à un plan de l'ouverture de distribution au centre de l'ouverture de distribution et dans lequel chaque ouverture de décharge a une ligne normale d'ouverture de décharge qui est perpendiculaire à un plan de l'ouverture de décharge au centre de l'ouverture de décharge, et dans lequel aucune des lignes normales d'ouvertures de distribution ne coïncide avec de quelconques lignes normales d'ouvertures de décharge.
  7. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel un tube d'étranglement (12) est disposé dans la chambre de distribution principale.
  8. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel un filtre (14) est agencé dans la chambre de distribution principale.
  9. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel toutes les ouvertures de décharge ont un diamètre sensiblement identique.
  10. Dispositif de distribution de colle selon l'une des revendications précédentes, dans lequel la distance entre les ouvertures de décharge dans ladite première direction est sensiblement identique.
  11. Ensemble de distribution de colle, l'ensemble de distribution de colle comprenant :
    - un réservoir (22) destiné à contenir une certaine quantité de colle ,
    - un dispositif de distribution de colle selon l'une des revendications précédentes ; et
    - une pompe (24) destinée à déplacer la colle du réservoir vers ledit dispositif de distribution de colle.
  12. Ensemble de distribution de colle selon la revendication 11, l'ensemble comprenant en outre un tuyau de transport (20), la pompe pompant la colle vers le dispositif de distribution par l'intermédiaire du tuyau de transport.
  13. Ensemble de distribution de colle selon la revendication 11 ou 12, l'ensemble comprenant en outre un dispositif de mesure (26) permettant de mesurer la quantité de colle à appliquer à une surface.
  14. Utilisation d'un dispositif de distribution de colle selon l'une des revendications 1 à 10 destiné à appliquer de la colle à une surface de plancher.
EP05722032.9A 2004-03-11 2005-03-10 Dispositif pour distribuer de la colle sur une surface Not-in-force EP1729890B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1025695A NL1025695C2 (nl) 2004-03-11 2004-03-11 Inrichting voor het verdelen van lijm over een oppervlak.
PCT/NL2005/000177 WO2005087386A1 (fr) 2004-03-11 2005-03-10 Dispositif pour distribuer de la colle sur une surface

Publications (2)

Publication Number Publication Date
EP1729890A1 EP1729890A1 (fr) 2006-12-13
EP1729890B1 true EP1729890B1 (fr) 2014-09-10

Family

ID=34961608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05722032.9A Not-in-force EP1729890B1 (fr) 2004-03-11 2005-03-10 Dispositif pour distribuer de la colle sur une surface

Country Status (3)

Country Link
EP (1) EP1729890B1 (fr)
NL (1) NL1025695C2 (fr)
WO (1) WO2005087386A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11850624B2 (en) 2019-03-25 2023-12-26 Medmix Switzerland Ag Distributor head for a distributor apparatus and distributor apparatus

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NL1032283C2 (nl) * 2006-08-08 2008-02-14 Opstalan B V Orgaan voor het aanbrengen van een viskeus mengsel op een ondergrond, alsmede werkwijze voor het vervaardigen van een isolatie-element.
EP2125323B1 (fr) 2007-02-28 2015-08-19 Basf Se Procédé de fabrication d'éléments composites sur la base de mousses à base d'isocyanate
EP2234732B1 (fr) * 2007-12-17 2015-09-02 Basf Se Procédé et dispositif de fabrication d'éléments composites à partir de mousses à base d'isocyanate
DE202010001508U1 (de) * 2010-01-28 2010-05-27 Verwaltungsgesellschaft Fuggerstraße GbR (vertreten durch den GF Thomas von Schreitter, 41352 Korschenbroich) Austragsleiste

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US3895984A (en) * 1970-10-15 1975-07-22 Pacific Adhesives Co Plywood manufacture using foamed glues
US4622239A (en) * 1986-02-18 1986-11-11 At&T Technologies, Inc. Method and apparatus for dispensing viscous materials
US5326401A (en) * 1992-08-28 1994-07-05 Wearguard Corp. Emulsion coater
US5366309A (en) 1993-07-08 1994-11-22 Springall Ernest G L Apparatus for applying adhesive
DK173470B1 (da) * 1998-06-18 2000-12-04 Casco As Spreder til udlægning af et fluidum, såsom lim
AU2875500A (en) * 1999-02-26 2000-09-14 Procter & Gamble Company, The Process for extruding a continuous layer
WO2000069571A1 (fr) * 1999-05-17 2000-11-23 A.W. Faber-Castell Unternehmensverwaltung Gmbh & Co. Dispositif pour l'application de structures en relief en matiere plastique sur des surfaces
JP4158962B2 (ja) * 2001-06-01 2008-10-01 漢拏空調株式会社 圧縮機ピストンコーティング方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11850624B2 (en) 2019-03-25 2023-12-26 Medmix Switzerland Ag Distributor head for a distributor apparatus and distributor apparatus

Also Published As

Publication number Publication date
NL1025695C2 (nl) 2005-09-13
WO2005087386A1 (fr) 2005-09-22
EP1729890A1 (fr) 2006-12-13

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