EP4232211A1 - Dispositif d'application pour une application de préférence partiellement amplifiée - Google Patents

Dispositif d'application pour une application de préférence partiellement amplifiée

Info

Publication number
EP4232211A1
EP4232211A1 EP21798603.3A EP21798603A EP4232211A1 EP 4232211 A1 EP4232211 A1 EP 4232211A1 EP 21798603 A EP21798603 A EP 21798603A EP 4232211 A1 EP4232211 A1 EP 4232211A1
Authority
EP
European Patent Office
Prior art keywords
application
line
component material
tube
mixer
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.)
Pending
Application number
EP21798603.3A
Other languages
German (de)
English (en)
Inventor
Frank Schnur
Carsten Schulz
Bernd Locher
Lothar Rademacher
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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 Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP4232211A1 publication Critical patent/EP4232211A1/fr
Pending legal-status Critical Current

Links

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
    • B05C5/0208—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 for applying liquid or other fluent material to separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1036—Means for supplying a selected one of a plurality of liquids or other fluent materials, or several in selected proportions, to the applying apparatus
    • 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B05C17/00566—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components with a dynamic mixer in the nozzle
    • 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
    • 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
    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work

Definitions

  • the invention relates to an application device, in particular for the alternating application of a 2K material comprising a first component material (e.g. an adhesive medium) and a second component material (e.g. a hardening medium) and the first component material (e.g. the adhesive medium ) from e.g. B. an application nozzle.
  • the application device is used in particular for application to a motor vehicle component (e.g. a motor vehicle body and/or an add-on part therefor).
  • the invention also relates to an associated method of operation.
  • 2K adhesives typically include an adhesive medium (first component material) and a hardening medium (second component material) for hardening the adhesive medium. Before application, the adhesive medium and the hardening medium must be mixed in an adhesive-specific mixing ratio. An adhesive bond with the desired properties can only be achieved if the mixture is sufficiently homogeneous during application.
  • the adhesive medium and the hardening medium are usually fed to a mixer.
  • the adhesive medium and the hardening medium are fed in the desired ratio to a mixing chamber of the mixer.
  • B. rotates a mixing head for mixing.
  • Dynamic mixing is often used when, for example, the viscosities of the bonding medium and the hardening medium are very different. Dynamic mixing is generally characterized by the fact that good mixing is achieved over a comparatively short mixer length. At the same time, dynamic mixing causes a relatively small pressure drop.
  • static mixing the adhesive medium and the hardening medium are fed into a static mixer. There is usually an insert in the static mixer that enables the desired thorough mixing by deflecting the adhesive medium and the hardening medium. The quality of the mixing depends in particular on the geometry and the length of the insert. Due to its design, a static mixer usually generates a comparatively high pressure drop.
  • the adhesive bead is not formed completely or continuously from mixed 2K material, but alternately from the 2K material (mixed adhesive and hardening medium) on the one hand and only the adhesive medium with the hardening medium omitted on the other.
  • Changing (switching) between an application of the 2K material and the pure adhesive medium is usually done in such a way that when changing to just the adhesive medium, the hardening medium is simply switched off and at the same time the volume flow of the adhesive medium is increased, resulting in a consistently constant volume flow .
  • the pure adhesive medium has to make its way through the mixer before it emerges from the nozzle.
  • the change takes place with a relatively high and/or large time delay, because the mixture in the mixer must first be discharged before the change can take effect.
  • a seamless change is not possible because "undefined" mixing ratios are initially set in the mixer during the change. The change can only be completed when the mixture has been completely removed from the mixer ("rinsed").
  • One object of the invention is to create an alternative and/or improved application device, in particular an application device with which application of an application bead is made possible, which on the one hand has a 2K material comprising a first component material and a second component material in expedient alternation and on the other hand expediently has only the first component material, but with advantageously as small as possible, preferably essentially no, undefined transition regions.
  • the invention relates to an application device, preferably for the alternating application of a two-component material (especially mixed) comprising a first component material (e.g. an adhesive medium, preferably resin) and a second component material (e.g. a hardening medium) (suitable 2K material) and the first component material (e.g. the adhesive medium, preferably resin) preferably on a motor vehicle component (e.g. a motor vehicle body component and/or an add-on part therefor).
  • a two-component material especially mixed
  • a first component material e.g. an adhesive medium, preferably resin
  • a second component material e.g. a hardening medium
  • suitable 2K material suitable 2K material
  • the application device can, for. B. include an application head.
  • the application device comprises a first line strand, which can preferably lead to an application nozzle.
  • the first line section comprises a mixer and a first line for the first component material (e.g. an adhesive medium) and a second line for the second component material (e.g. a hardening medium).
  • the first line and the second line are connected to the mixer, wherein the mixer is adapted to form an appropriately mixed 2K material and in particular to mix the first component material (e.g. the adhesive medium) and the second component material (e.g. the adhesive medium).
  • B. the hardening medium to mix.
  • the application device is characterized in particular by the fact that it has (in particular in addition to the first line strand) at least one second line strand for the first component material (e.g. the adhesive medium), preferably around an application bead (e.g. indirectly or essentially directly) alternately to form the particular mixed 2K material from the first line strand and the first component material from the second line strand.
  • first component material e.g. the adhesive medium
  • the application head can B. have a first connection for the first line and / or a second connection for the second line and alternatively or additionally z. B. a connection for the second line.
  • the mixed 2K material and the first component material can e.g. B. be issued from one and the same application nozzle, z. B. from expediently different and / or more outlet openings or one and the same outlet opening.
  • first line strand and/or the second line strand can open into the application nozzle.
  • the application device advantageously enables in particular that the mixed 2K material and the first component material can only meet in or as close as possible before the application nozzle.
  • first line and the second line strand can expediently provide the same material (in particular the same adhesive medium), in particular can lead to the application nozzle.
  • the second line strand for the first component material enables in particular application beads with as small as possible, preferably essentially no, undefined transition areas between bead sections made of (properly mixed) 2K material and bead sections made of (preferably only) the first component material, preferably because in the mixer a mixture in set, expediently desired mixing ratio can remain.
  • z. B. very dynamic change can be realized. It is possible that the second line strand z. B. forms a bypass line to bypass the mixer and/or leads downstream of the mixer to the application nozzle, so that preferably the first component material of the second line section can be applied while bypassing (appropriately at least a large part) the mixer.
  • the application device prefferably be designed for (appropriately indirect or essentially direct) alternating application of the appropriately mixed 2K material on the one hand and the first component material while omitting the second component material on the other hand.
  • the second strand of wire, the first component material z. B. omission of the second component material lead to the application nozzle.
  • the pure first component material and/or only the first component material can be applied by means of the second line strand.
  • the second line can z. B. lead to the application nozzle, open into the application nozzle and / or open substantially directly in front of the application nozzle, z. B. in the application tube mentioned below.
  • first line is connected to a (expediently first) metering device in order to meter the first component material for the first line.
  • second line of cables z. B include a (suitably second) dispenser to dose the first component material for the second line strand.
  • the second line can, for. B. be connected to a meter to meter the second component material for the second line
  • first line and the second line section can therefore preferably be connected to a common dosing device.
  • the first component material for the first line can e.g. B. be provided by a first material supply (z. B. a first tank for the first component material) and the first component material for the second strand of wire can, for. B. from a second material supply (z. B. a second tank for the first component material) are made available.
  • a first material supply z. B. a first tank for the first component material
  • the first component material for the second strand of wire can, for. B. from a second material supply (z. B. a second tank for the first component material) are made available.
  • first component material for the first line and the first component material for the second line run may be made available from a common material supply (eg a common tank for the first component material).
  • the mixer prefferably in the form of a static mixer or a dynamic mixer.
  • first line prefferably has a first, preferably controllable valve (e.g. needle valve) for opening and closing the first line.
  • controllable valve e.g. needle valve
  • the second line can, for. B. preferably have a second controllable valve (e.g. needle valve) for opening and closing the second line.
  • a second controllable valve e.g. needle valve
  • the first valve and / or the second valve can, for. B. also allow a particular partial opening, so that expediently one or more intermediate positions between an open and a closed valve position can be advantageously implemented.
  • the first valve and/or the second valve is preferably integrated in the application head.
  • the second line can z. B. have at least one valve, preferably a check valve and / or a preferably controllable valve (z. B. needle valve) for expedient opening and closing of the second line strand.
  • the valve can e.g. B. be arranged outside or inside the application tube discussed below.
  • the expediently controllable valve can, for. B. also allow a particular partial opening, so that in particular one or more intermediate positions between an open and a closed valve position can be advantageously implemented.
  • the application device z. B. includes an application tube or is an application tube.
  • the application tube can, for. B. can be formed with one or more tubes.
  • the application tube can expediently z. B. be relatively long or relatively short, z. B. as a pipe stub etc..
  • the application tube can preferably be mounted (e.g. detachably) on the application head.
  • the application tube may include the application nozzle and/or for the mixer to be arranged in the application tube.
  • the mixer can e.g. B. be detachably or non-detachably arranged in the application tube.
  • the application nozzle can preferably be formed at the distal end of the application tube and/or downstream behind the mixer.
  • the second wiring harness and / or the first wiring harness can, for. B. run through the application tube and preferably open into the application nozzle.
  • the second line can z. B. (preferably substantially axially) extend along the mixer, be arranged parallel to the first line strand and / or be arranged coaxially to the first line strand.
  • the second line strand preferably extends in the application tube (expediently radially) inside the mixer.
  • the mixer can expediently comprise a hollow channel on the inside for the second line strand and/or a valve needle (and be designed, for example, as a (expediently static or dynamic) hollow shaft).
  • the second line can z. B. between the mixer and the valve needle.
  • the second line strand preferably extends in the application tube (expediently radially) outside of the mixer.
  • the mixer can e.g. B. be encased on the outside of at least one tube, the second
  • Wiring harness can preferably extend between the mixer and the tube. It is possible for the application tube to have a twist lock and preferably for the first line strand and/or the second line strand to be able to be opened or closed by the twist lock.
  • the screw cap can z. B. also allow a particular partial opening, so that in particular one or more intermediate positions between an open and a closed position can be advantageously realized.
  • the application tube z. B. comprise at least two tubes, z. B. have at least two coaxially extending and / or at least two tubes pushed into each other.
  • the mixer can e.g. B. in a tube (expediently detachable or non-detachable) can be arranged, the tube z. B. of a tube, especially protective tube, can be encased on the outside.
  • the protective tube can, for. B. be encased on the outside by a preferably rotatable tube.
  • the application tube can, for. B. have at least two pipes, between which the second line strand can be formed.
  • the application tube z. B. have at least two tubes, of which in particular a tube is rotatable in order to open or close the first cable run and/or the second cable run and thus preferably to form a twist lock.
  • an outer tube can be rotated relative to an inner tube to open or close the first line strand and / or the second line strand and thus preferably form a twist lock.
  • the twist lock can connect the first line harness and/or the second line harness z. B. open or close within the application tube.
  • the screw cap can z. B. be arranged in the output-side end portion of the application tube, z. B. in the outlet-side quarter, fifth or sixth of the application tube, preferably essentially directly in front of or in the application nozzle.
  • a z. B. is arranged coaxially to the application tube running, in particular switchable valve needle.
  • the valve needle can z. B. extend into the output-side end portion of the application tube, z. B. up to the outlet-side quarter, fifth or sixth of the application tube, preferably at least up to substantially directly in front of or in the application nozzle.
  • the first line harness and / or the second line harness can, for. B. can be opened or closed by the valve needle.
  • the valve needle can, for. B. be switched via the application head, in particular to open or close the first cable run and / or the second cable run.
  • At least one bearing point for the valve needle can be arranged in the application tube and/or in the hollow channel of the mixer, it being possible for the second line strand to be passed through the at least one bearing point.
  • the first component material for the second line strand flow through one or more openings in the at least one bearing point through the at least one bearing point.
  • e.g. B. are separated from each other in the application tube of the first cable run and the second cable run via a double wall, in particular an insulating wall.
  • the double wall preferably forms an insulating intermediate space between the first line strand and the second line strand.
  • This can e.g. B. be made possible that an exothermic reaction in the first line strand (z. B. between the first component material and the second component material) can not or only moderately affect the first component material in the second line strand.
  • first line and/or the second line expediently runs in sections in the application head, in particular is integrated in the application head.
  • the second strand of wire on the application head expediently be guided past the outside or expediently run in sections in the application head, in particular be integrated in the application head.
  • first line strand eg the first line and/or the second line
  • second line strand z. B. via the front face of the application tube, in particular on the input side, into the application tube.
  • the second line strand it is also possible for the second line strand to lead into the application tube via a lateral surface of the application tube and thus preferably from the outside side (e.g. at an angle or at right angles) or via a lateral surface of the application nozzle and thus preferably from the outside side (e.g . obliquely or at right angles) into the application nozzle.
  • the second line can z. B. obliquely and / or laterally to the application nozzle and / or the application tube (z. B. the lateral surface) and thus preferably not coaxial.
  • the first line harness and / or the second line harness can, for. B. via an end face of the application nozzle in the application nozzle, in particular open in the application nozzle.
  • the first component material can preferably be an adhesive medium and the second component material can preferably be a hardening medium, in particular for hardening the adhesive medium.
  • the first line is preferably an adhesive medium line.
  • the second line harness is preferably an adhesive medium line harness.
  • the second line is preferably a hardening medium line.
  • the application bead can preferably be an adhesive bead.
  • the application head is preferably mounted on a multi-axis articulated arm robot, e.g. B. on a multi-axis robot hand.
  • the application tube can, for. B. be constructed from a single tube or be constructed from several tubes, z. B. from at least two coaxially extending tubes and / or at least two nested tubes.
  • the application nozzle is preferably arranged downstream of the mixer and/or can, for. B. have at least one outlet opening.
  • the application nozzle can, for. B. along their flow direction have a flow cross section that remains essentially the same or tapers towards their outlet opening (e.g. conically).
  • the application nozzle can, for. B. one-piece-integral part of the application tube or be appropriately mounted on the application tube.
  • the mixer can e.g. B. include an external mixer contour for the first line strand and / or an internal hollow channel for the second line strand.
  • the mixer can e.g. B. have at least one helical, helical, lamellar and / or lattice-shaped mixing element, the z. B. along the application tube.
  • the mixer can e.g. B. as a tube (z. B. (expediently static or dynamic) hollow shaft) with an external mixer contour and / or internal hollow channel for the second line and / or the valve needle.
  • the invention can preferably be applied to 2K adhesives. However, it is not limited to 2K adhesives, but can also be used for another 2K system.
  • the invention is z. For example, it is fundamentally not limited to a specific adhesive system or to a 2-component adhesive with a specific mixing ratio.
  • the application device can, for. B. comprise a first curing device for curing application bead sections from the appropriately mixed 2K material and / or comprise a second curing device for curing application bead sections from the first component material.
  • the second curing device can preferably be arranged in the production line downstream of the first curing device, so that curing can be carried out first by means of the first curing device and (suitably directly or indirectly) thereafter curing by means of the second curing device.
  • the first curing device is preferably designed for curing by means of induction or by means of infrared radiation.
  • the second curing device z. B. include a curing oven.
  • the invention also relates to an operating method for an application device, preferably an application device as disclosed herein.
  • the application device is preferably used for alternately applying a 2K material comprising a first component material and a second component material on the one hand and the first component material on the other (e.g. from an application nozzle, in particular to a motor vehicle component).
  • the application device comprises a first z. B. leading to an application nozzle line harness, wherein the first line harness has a mixer and a first line for a first component material and a second line for a second component material.
  • the first component material and the second component material are fed to the mixer and the mixer mixes the first component material and the second component material together to form a 2K material.
  • the operating method is characterized in particular by the fact that a second line strand for the first component material is made available in order to alternate an application bead of (e.g. indirectly or essentially directly) the (expediently mixed) 2K material from the first To form wiring harness and the first component material of the second wiring harness
  • a substantially continuous flow of material (in particular from the application nozzle) can be ensured, e.g. B. a dosage of the 2K material can be shut down from the first line and z. B. at the same time a dosage of the first material component from the second line run can be ramped up. This can preferably be done in reverse for switching from an application of the first material component to a 2K material application.
  • the first material component for the first line strand and the second line strand can also be metered from one and the same dispenser.
  • first component material for the first line and the first component material for the second line section is expediently the same material, e.g. B. the same adhesive medium.
  • the context of the invention includes, in particular, exemplary embodiments in which the A component (in particular the first component material) and the mixed 2K material consisting of the A component and a B component (in particular the first component material and the second component material) can be applied.
  • the application device in addition to the second cable run, e.g. B. may have at least one other line strand for another material component.
  • the further line strand can preferably lead to the application nozzle, bypassing the mixer.
  • the other material component can, for. B. be dosed by a separate dispenser.
  • the invention is preferably not limited to the sequence between bead sections made of the 2K material and bead sections made of the first component material.
  • the adhesive medium is preferably resin.
  • the other line can z. B. be constructed as the second line harness, so that the corresponding disclosure mutatis mutandis appropriately also applies to the other line harness.
  • the application device enables a partially boosted application.
  • This includes in particular an application in which the A component of a 2K material and the 2K material AB (expediently indirectly or essentially directly) can be applied alternately.
  • Figure 1 shows an application device according to an embodiment of
  • FIG. 2 shows an application device according to another exemplary embodiment of the invention
  • FIGS. 3a to 3c show different material supplies for an application device according to different exemplary embodiments of the invention.
  • FIGS. 4a and 4b show an application bead that can be produced by an application device according to exemplary embodiments of the invention
  • FIG. 5 shows a sectional view of an application device, in particular one
  • FIGS. 6a to 6c show different views of an application device, in particular an application tube according to another exemplary embodiment of the invention.
  • FIG. 1 shows an application device 100 according to an exemplary embodiment of the invention, with FIGS. 4a and 4b each showing a schematic view of an application bead 200 that can be produced by means of the application device 100 according to an exemplary embodiment of the invention.
  • the application device 100 is designed to apply an appropriately mixed two-component material AB (2K material).
  • the 2K material AB comprises a first component material A and a second component material B.
  • the first component material A is z. B. an adhesive medium (preferably resin) and the second component material is z. B. a hardening medium for hardening the adhesive medium A.
  • the following exemplary embodiments are described with reference to an adhesive medium A and a hardening medium B, but are not limited thereto.
  • the application device 100 has an application head H and an application nozzle 30 and a first line section 10 leading to the application nozzle 30.
  • the application nozzle 30 preferably tapers towards its outlet opening. You can also use a z. B. essentially constant passage cross section.
  • the first line section 10 comprises a mixer 3 (e.g. a static or dynamic mixer) in an application tube 4 and a first line 1 for the adhesive medium A and a second line 2 for the hardening medium B.
  • the first line 1 and the second line 2 are connected to the mixer 3 so that the mixer 3 can mix the adhesive medium A and the hardening medium B together to form the mixed 2K material AB.
  • the first line 1 and the second line 2 run in sections in the application head H.
  • the application device 100 includes a second line strand 20, which expediently leads to the application nozzle 30, also for the adhesive medium A (preferably resin).
  • the second line section 20 forms in particular a bypass line to bypass the mixer 3 and z. B. downstream behind the mixer 3 in the application tube 4 and in particular in the application nozzle 30 open.
  • first line 1 and the second line section 20 can provide the same adhesive medium A.
  • the bead sections AB can be formed from the 2K material by means of the first line 1 and the second line 2 and thus in particular by means of the first line strand 10 (FIGS. 4a and 4b).
  • the bead sections A can be formed from preferably only the adhesive medium A by means of the second line strand 20, in particular with the omission of the hardening medium B (FIGS. 4a and 4b).
  • Application beads 200 can thus be produced from alternately the 2K material AB from the first line strand 10 and only the adhesive medium A from the second line strand 20, with the hardening medium B being omitted (FIGS. 4a and 4b).
  • the application means device 100 enables in particular a partially boosted application, in which case the A-component material of the 2K material AB and the 2K material AB (appropriately indirectly or essentially directly) can be applied alternately.
  • the second line run 20, which is provided in addition to the first line run 10, also for the adhesive medium A, enables in particular application beads 200 with the smallest possible, preferably essentially no, undefined transition areas S ( Figures 4a and 4b) between bead sections made of 2K material AB and bead sections made of preferably only the adhesive medium A, in particular because a mixture of adhesive medium A and hardening medium B can always remain in the mixer 3 in the set, expediently desired mixing ratio.
  • the adhesive medium A for the first line 1 and the adhesive medium A for the second line run 20 is the same material, which can be made available from a common material supply 40 (e.g., FIGS. 3a and 3b) or from different material supplies 50 and 60 (Figure 3c) can be made available.
  • the material supply can in particular include one or more material tanks for the adhesive medium A.
  • the application tube 4 comprises an outer lateral surface and an inlet end face 4.1.
  • the application nozzle 30 comprises an outer lateral surface and an inlet end face 30.1.
  • the first line strand 10 leads via the end face 4.1 into the application pipe 4 and via the end face 30.1 into the application nozzle 30.1. Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the second line strand 20 is routed past the application head H and at least for the most part past the application pipe 4 .
  • the second line strand 20 extends outside of the application tube 4 and leads in particular from the side outside over the lateral surface of the application nozzle 30 into the application nozzle 30 . Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the first line strand 10 and the second line strand 20 can thus open into the common application nozzle 30 .
  • the first line 1 can have its own (first) metering device D1 in order to meter the adhesive medium A for the first line 1 .
  • the second line strand 20 can also have its own (second) dispenser D2 in order to meter the adhesive medium A for the second line strand 20 .
  • a common metering device D can also be provided (e.g. FIG. 2) in order to meter the adhesive medium A both for the first line 1 and for the second line run 20 .
  • the second line 2 can also include a metering device D3 in order to meter the hardening medium B.
  • the application tube 4 with the mixer 3 preferably comprises a mounting structure for detachable mounting on the application head H.
  • the first line 1 and the second line 2 are integrated in sections in the application head H and thus run in the application head H. Also integrated in the application head H is a first valve VI (e.g. a needle valve) for opening and closing the first line 1 and a second valve V3 (e.g. a needle valve) for opening and closing the second line 2.
  • a first valve VI e.g. a needle valve
  • a second valve V3 e.g. a needle valve
  • the second line strand 20 is preferably routed past the application head H and in particular the mixer 3 .
  • the second line harness 20 may include one or more optional valves V2, e.g. B. a check valve and/or a preferably controllable valve, for opening and closing the second line section 20.
  • the application nozzle 30 and the mixer 3 and/or the application tube 4 are preferably aligned essentially coaxially with one another.
  • the second line strand 20 preferably connects to the application pipe 4 and/or the application nozzle 30 at an angle or laterally and thus in particular not coaxially.
  • the dosage of the 2K material AB can be reduced and at the same time the dosage of the A component can be increased.
  • the A-component can also consist of z. B. one and the same dispenser. An additional dispenser is then not required.
  • the application device 100 can be used in vehicle bodywork in particular. By changing the application media during the application, areas can be applied that can be thermally cured quickly, for example by induction or infrared radiation. As a result, sufficient handling strength can be achieved and/or alternative, costly tacking processes can be avoided.
  • Figure 2 shows an application device 100 according to another embodiment of the invention, with the z. B. likewise as in Figures 4a and 4b schematically shown application beads 200 can be generated.
  • a special feature is that the adhesive medium A can be metered by a common metering device D both for the line 1 and for the second line section 20 .
  • FIGS. 3a to 3b show different material supplies for an application device 100 according to different exemplary embodiments of the invention.
  • Figure 3a shows an embodiment of a common material supply 40 for the adhesive medium A, z. B. a tank for the adhesive medium A.
  • the material supply 40 serves to provide the adhesive medium A both for the line 1 and for the second line run 20 .
  • Figure 3b shows another embodiment of a common material supply 40 for the adhesive medium A, z. B. a tank for the adhesive medium A.
  • the material supply 40 serves to provide the adhesive medium A both for the line 1 and for the second line run 20 .
  • Figure 3c shows an embodiment with two material supplies 50 and 60 for the adhesive medium A, z. B. two tanks for the adhesive medium A.
  • the first material supply 50 is used to provide the adhesive medium A for the first line 1 available.
  • the second material supply 60 serves to make the adhesive medium A available for the second line section 20 .
  • FIGS. 4a and 4b show application beads 200 that can be produced by an application device 100 according to different exemplary embodiments of the invention.
  • the application bead 200 comprises (suitably indirectly or at least essentially directly) alternating bead sections AB made of the 2K material AB (adhesive medium and hardening medium) and bead sections A made of the adhesive medium A with the omission of the hardening medium B first line 1, provided second line section 20 for also the adhesive medium A enables in particular the smallest possible, preferably essentially no undefined transition areas S between bead sections AB made of 2K material (A + B) and bead sections A preferably only made of the adhesive medium A, in particular This is because a mixture of adhesive medium A and hardening medium B can always remain in the mixer 3 in the set, expediently desired mixing ratio.
  • the invention is preferably not limited to the sequence between bead sections made from the 2K material AB and bead sections made from the first component material A.
  • FIG. 5 shows a longitudinal section of an application device 100, in particular an application tube 4 according to an exemplary embodiment of the invention.
  • a mixer 3 with an external mixer contour is arranged in the application tube 4 .
  • the application tube 4 comprises a mounting structure 80 on the inlet side for detachable mounting on the application head H and the application nozzle 30 on the outlet side.
  • a special feature is that the second line strand 20 and the first line strand 10 extend (in particular coaxially) through the application tube 4 and open into the application nozzle 30 via an end face 30.1 of the application nozzle 30.
  • the second line run 20 can thus extend (e.g. axially) along the mixer 3 and be arranged parallel to the first line run 10 .
  • the mixer 3 comprises a mixer contour that is expediently located radially on the outside for the first line strand 10 and a hollow channel that is expediently located radially on the inside for the second line strand 20 and preferably a valve needle 70.
  • the second line strand 20 runs radially inside the mixer 3 and thus radially inside the first line strand 10, in particular between the mixer 3 and the valve needle 70 Hollow shaft) for the second line section 20 and the valve needle 70.
  • the first component material A can be guided to the application nozzle 30, with the 2K material AB being able to be guided to the application nozzle 30 via the external mixer contour of the mixer 3 .
  • the application tube 4 comprises an outer lateral surface and an inlet end face 4.1.
  • the application nozzle 30 comprises an outer lateral surface and an inlet end face 30.1.
  • the first line strand 10 leads via the end face 4.1 into the application pipe 4 and via the end face 30.1 into the application nozzle 30.1. Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the second line strand 20 also leads via the end face 4.1 into the application pipe 4 and via the end face 30.1 into the application nozzle 30.1. Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the first line strand 10 and the second line strand 20 can thus open into the common application nozzle 30 .
  • not only the first line strand 10, but preferably also the second line strand 20 can run in the application head H and can thus be introduced into the application tube 4 in particular via the application head H.
  • the valve needle 70 arranged in the mixer 3 preferably extends into the outlet-side end section of the application tube 4, in particular up to the last fifth or sixth of the application tube 4, e.g. B. to essentially immediately before the application nozzle 30 or in the application nozzle 30.
  • the valve needle 70 can z. B. switched on the input side (e.g. actuated) and close on the output side.
  • the valve needle 70 serves to open or close the second line strand 20 .
  • Two bearing points, spaced apart axially from one another, for the valve needle 70 are arranged in the application tube 4, specifically in the hollow channel of the mixer 3, with the second line section 20 being passed through the two bearing points, so that the first component material A for the second line section 20 is conveyed through one or more Openings in the bearing points can flow through the bearing points to the application nozzle 30.
  • the application tube 4 can suitably comprise an inner tube 71 in which the mixer 3 can be formed.
  • the tube 71 can, for. B. one-piece-integral part of the mixer 3, it being also possible for the mixer 3 to be detachably or fixedly mounted in the tube 71.
  • the application tube 4 can have an optional tube, in particular a protective tube 72, wherein the protective tube 72 can encase the tube 71 on the outside. It is Z. B. possible that the mixer 3 and / or the tube 71 is detachably housed in the protective tube 72 (z. B. clamped), so that the mixer 3 can be replaced if necessary.
  • FIGS 6a to 6c show different views of an application device 100, in particular an application tube 4 according to another embodiment of the invention.
  • FIG. 6b shows a section along line AA in FIG. 6a, with FIG. 6c showing a section along line BB in FIG. 6a.
  • the mixer 3 and the valve needle 70 are arranged in the application tube 4, although these are not shown in FIGS. 6a to 6c for purposes of illustration.
  • the first line strand 10 and the second line strand 20 extend through the application pipe 4 and end in the application nozzle 30.
  • the application tube 4 comprises a tube 71 in which the mixer 3 is arranged.
  • the tube 71 is encased on the outside by an optional tube, in particular a protective tube 72 .
  • the application tube 4 comprises, in particular on the output side, a screw cap 90, by means of which the second line strand 20 in particular can be opened or closed.
  • the application tube 4 can comprise a rotatable tube 73, which preferably encases the tube 71 and/or the protective tube 72 laterally on the outside and can be rotated relative to the tube 71 and/or the protective tube 72.
  • a z. B. electric motor or a pneumatic drive can be provided to rotate the rotatable tube 73.
  • the first line strand 10 leads via the end face 4.1 into the application pipe 4 and via the end face 30.1 into the application nozzle 30.1. Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the second line strand 20 also leads via the end face 4.1 into the application pipe 4 and via the end face 30.1 into the application nozzle 30.1. Application can then take place by means of the outlet opening of the application nozzle 30 .
  • the second line run 20 in the application tube 4 runs outside the mixer 3 and thus in particular outside the first line run 10.
  • the second line run 20 extends in particular between the tube 71 and/or the protective tube 72 and the pipe 73.
  • the application device 100 enables one or more of the following advantages, e.g. e.g.:
  • Switching can be done almost seamlessly, where z. B. a very small transition area can be achieved with undefined mixed material, which corresponds only to the material volume that is located between the introduction of the A components and the nozzle exit.
  • a material volume can be guaranteed in the mixer 3, which can always correspond to the desired mixing ratio.
  • the pot life z. B. always essentially the same, and can suitably be tracked in the system without errors. Any necessary rinsing processes of the mixed 2K material can e.g. B. can be started in a targeted manner when the system is at a standstill. This allows the amount of material to be discarded to be reduced to a minimum.
  • applications can also be implemented with only 2K material AB or only with the A component.
  • first line preferably adhesive medium line
  • a first component material preferably adhesive medium (e.g. resin)
  • B second component material preferably hardening medium
  • AB 2K material preferably mixed 2K material, in particular of first component material A and second component material B
  • the doser The doser

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Accessories For Mixers (AREA)
  • Spray Control Apparatus (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)

Abstract

L'invention concerne un dispositif d'application (100), de préférence pour appliquer une substance à deux composants (AB), comprenant une première substance de composant (A) et une seconde substance de composant (B), et la première substance de composant (A) en alternance, plus particulièrement à une pièce de véhicule automobile, le dispositif d'application comprenant de préférence une tête d'application (H) et un premier passage de ligne (10), qui mène à une buse d'application (30), le premier passage de ligne (10) comprenant un mélangeur (3), une première ligne (1) pour une première substance de composant (A) et une seconde ligne (2) pour une seconde substance de composant (B), et la première ligne (1) et la seconde ligne (2) étant reliées au mélangeur (3) et le mélangeur (3) mélangeant la première substance de composant (A) et la seconde substance de composant (B) pour former une substance à deux composants (AB). Le dispositif d'application (100) est caractérisé en particulier en ce qu'il comprend un second passage de ligne (20) pour la première substance de composant (A) afin de former un cordon d'application (200) à partir de la substance à deux composants (AB) à partir du premier passage de ligne (10) et à partir de la première substance de composant (A) à partir du second passage de ligne (20) en alternance. L'invention concerne également un procédé de fonctionnement associé.
EP21798603.3A 2020-10-26 2021-10-19 Dispositif d'application pour une application de préférence partiellement amplifiée Pending EP4232211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020128115.3A DE102020128115A1 (de) 2020-10-26 2020-10-26 Applikationsvorrichtung zum vorzugsweise teilgeboosterten Applizieren
PCT/EP2021/078948 WO2022089996A1 (fr) 2020-10-26 2021-10-19 Dispositif d'application pour une application de préférence partiellement amplifiée

Publications (1)

Publication Number Publication Date
EP4232211A1 true EP4232211A1 (fr) 2023-08-30

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EP21798603.3A Pending EP4232211A1 (fr) 2020-10-26 2021-10-19 Dispositif d'application pour une application de préférence partiellement amplifiée

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US (1) US20230381808A1 (fr)
EP (1) EP4232211A1 (fr)
JP (1) JP2023547626A (fr)
KR (1) KR20230095108A (fr)
CN (1) CN116507426A (fr)
DE (1) DE102020128115A1 (fr)
MX (1) MX2023004604A (fr)
WO (1) WO2022089996A1 (fr)

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DE102024101062A1 (de) * 2024-01-15 2025-07-17 Focke & Co. (Gmbh & Co. Kg) Reinigungsverfahren zum Reinigen eines Auftragsventils

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Publication number Publication date
JP2023547626A (ja) 2023-11-13
MX2023004604A (es) 2023-05-08
DE102020128115A1 (de) 2022-04-28
KR20230095108A (ko) 2023-06-28
WO2022089996A1 (fr) 2022-05-05
CN116507426A (zh) 2023-07-28
US20230381808A1 (en) 2023-11-30

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