EP2163312A1 - Dispositif pour l'application d'un matériau fluide - Google Patents

Dispositif pour l'application d'un matériau fluide Download PDF

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Publication number
EP2163312A1
EP2163312A1 EP08016202A EP08016202A EP2163312A1 EP 2163312 A1 EP2163312 A1 EP 2163312A1 EP 08016202 A EP08016202 A EP 08016202A EP 08016202 A EP08016202 A EP 08016202A EP 2163312 A1 EP2163312 A1 EP 2163312A1
Authority
EP
European Patent Office
Prior art keywords
valve
counterpiece
nozzle piece
nozzle
fluid
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.)
Ceased
Application number
EP08016202A
Other languages
German (de)
English (en)
Inventor
Dick Svensson
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.)
ABB AG Germany
Original Assignee
ABB AG Germany
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 ABB AG Germany filed Critical ABB AG Germany
Priority to EP08016202A priority Critical patent/EP2163312A1/fr
Priority to PCT/EP2009/006304 priority patent/WO2010028755A1/fr
Publication of EP2163312A1 publication Critical patent/EP2163312A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
    • 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
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled

Definitions

  • the invention relates to a device for application of a fluid material comprising a housing wherein the material is extruded through an orifice being located at the base part of the housing and being controlled by a valve connected to a feed channel through which the fluid material is being supplied.
  • a device for applying a fluid to a moving carrier belt which consists of a tubular distributor and a number of individual flow channels, which together form a multi-jet nozzle.
  • the individual flow channels in the form of capillary tubes are arranged along a generating line parallel to the distributor axis and at a right angle to the distributor axis and are at an equal distance from one another.
  • the individual flow channels project into the inside of the tubular distributor, the two external individual flow channels projecting further into the inside of the distributor than the other individual flow channels.
  • the surface coating may be a PVC abrasion protection material, a joint sealant or the like, and is generally a low-viscosity material.
  • the device comprises a source of coating material connected to a nozzle for spraying the material onto an object. Accordingly, the nozzle has a discharge aperture in the form of a pattern of holes, preferably a row of holes.
  • Further objects may be provisions for preventing the fluid material from clogging and that single droplets created when the material flow is switched off will not hit the surface outside the sprayed area.
  • the invention is characterized in that the orifice is formed by at least one nozzle piece, said nozzle piece is located in the base part of the housing and designed to be used as a valve seat of the material valve and that the valve is positioned directly at the inner side of the nozzle piece.
  • two nozzle pieces are comprised each operated in the same manner as illustrated in the following.
  • shut-off member is provided in the material valve which is formed by a counterpiece moving within a valve chamber of the material valve between two final positions in which the material valve is either open or closed.
  • the counterpiece is charged by a spring and controlled by a solenoid valve for opening where the counterpiece is joint to a piston rod which is fixed to a pneumatically operated piston.
  • Another embodiment of the invention is characterized in that the nozzle piece is provided with multiple holes being aligned side by side through which the fluid material is extruded.
  • the multiple holes in the nozzle piece are arranged with an interspace of 2.5 mm or less and where each hole in the nozzle piece has a diameter of 1.5 mm or less.
  • valve chamber is connected to a first channel for supply with fluid material from a reservoir and to a second return channel for spare fluid material hence the material supply channels for supply and return of material allow to circulate the material up to the nozzle piece.
  • the return channel preferably is controlled by a valve which is positioned within the housing and closes the material return flow when spraying.
  • the counterpiece is made from a non metallic material, particularly silicon or the like, and shaped as a U-profile in order to improve leak tightness when closing the material valve.
  • valve chamber is joint to a first conduit for supply of flushing media.
  • a preferred embodiment of the invention is characterized in that a valve for the flushing media is integrated in a piston rod operating the material valve and the means charging the valve for flushing media is formed by a piston being integrated in the same cylinder as the piston for the material valve.
  • a further valve is being provided for compressed air which is likewise integrated in the piston rod operating the material valve and being integrated in the same cylinder as the piston for the material valve.
  • conduits for the cleansing or flushing fluid and/or for the compressed air are guided through the counterpiece so that the ends of each of these conduits are directly in front of the nozzle piece.
  • a preferred embodiment of the invention is characterized in that a valve for the flushing media is integrated in a piston rod operating the material valve and the means charging the valve for flushing media is formed by a piston being integrated in the same cylinder as the piston for the material valve.
  • a further valve is being provided for compressed air which is likewise integrated in the piston rod operating the material valve and being integrated in the same cylinder as the piston for the material valve.
  • This ventilation bar is located outside the base plate and in particular provided for removing fluid drops from the base plate by air flow, where the ventilation bar especially is supplied with compressed air.
  • At least one, preferably two opposite directed air nozzles for each material nozzle are provided where the air nozzles generate an air flow that blows the droplets being formed when the material valve is closed back to the applied bead.
  • the air nozzles are each controlled by a needle valve for the adjustment of the airflow.
  • each of the valves for material and flushing agent and each of the air nozzles as well as the return flow valve is operated by a separate solenoid valve that is integrated in the housing.
  • a temperature sensor for temperature control and supervision is integrated close to the application nozzles.
  • a pressure sensor that continuously measures the material pressure as close to the application nozzle as possible.
  • a pressure sensor for pressure control and supervision is integrated close to the material valve.
  • the size of the applicator for fluid material is limited in order to achieve the channels for supply and return of the fluid material being as short as possible since the material used for the application is fast air drying which requires frequent flushing of the application nozzle between the application cycles to avoid clogging.
  • FIG. 1 the body of an advanced applicator 10 according to the invention is shown in a side view from above in order to get utmost complete information about the subject matter of the invention.
  • the applicator comprises a mounting flange 12, which is fastened to a support member 18.
  • the support member 18 passes at the other end opposite to the mounting flange 12 into a dispenser 22 which is provided for the application of fluid material.
  • the support member 18 and the dispenser are covered by an enclosure 20.
  • the applicator 10 is provided for being mounted to the wrist of the arm of a robot (not shown) and receives a couple of supply lines for fluid material, flushing fluid, and compressed air (all not shown).
  • the applicator 10 is furnished with a mounting flange 12, a connecting plate 14 provided with junctions 16 for supply of fluid material to be coated, flushing media, compressed air, return flow for excess fluid material, and for lines for supply of the applicator 10 respectively its installed equipment with electric current as well as for the control of it.
  • the applicator 10 comprises a support member 18 which is covered by an enclosure 20 which extends to the dispenser 22 which comprises the most important parts of the applicator 10.
  • the dispenser 22 Opposite to the enclosure 20 the dispenser 22 is provided with a base plate 24 which is directed to the surface to be coated. In this base plate 24 the outlet for the fluid material is located.
  • Fig. 2 the dispenser 22 is shown in side elevation. It consists essentially of two parts, a lower part comprising the base plate 24 and a valve chamber 32 and an upper part comprising as well means for control of the dispenser 22 as actuators for the valves which control the inflow of fluid material and components for cleansing and drying the dispenser 22.
  • the outlet for the fluid material is made from two nozzle pieces 26 of same or different size which are established in the base plate 24 and comprise each at least one row 28 of a couple of holes 30 through which the fluid material is flowing when the applicator is in operation.
  • the holes 30 are arranged in a straight manner with a distance between adjacent holes 30 of about 1,5 mm and having a width of about 0,5 mm.
  • the lower part of the dispenser 22 comprises the dispenser housing 34 which is formed by the base plate 24, side walls 36 and a closure part 38 and surrounds a valve chamber 40 which is located inside the lower part of the dispenser 22.
  • a counterpiece 40 which acts as shut-off member for the fluid material supplied to the valve chamber 32.
  • the counterpiece 40 is each adapted to the respective nozzle piece 26 and bordered by a valve seat 42.
  • the preferred length of the nozzle piece is about 20 mm to 100 mm. Accordingly the number of holes 30 is provided therein where depending on the kind of fluid material the holes 30 are arranged in one row or more.
  • the counterpiece 40 which operates as shut-off member in the valve for fluid material supplied through a supply channel 43 is preferably made from non metallic material with a u-profile shape.
  • each counterpiece is formed as a rectangular bar which is provided on its bottom or closure side with lips a circumferential bead which forms a sealing lip.
  • the counterpieces 40 are actuated each by a hollow piston rod 44 fastened to a piston 46 which is guided in a cylinder 48 that passes through the closure part 38 up to the upper part of the dispenser 22.
  • the upper part of the dispenser 22 contains a first drive 50 for operating the counterpiece 40 by means of the piston 46 and the piston rod 44.
  • a needle 41 is inserted which is part of a flushing valve 51.
  • This valve provides access of flushing media to the nozzle piece 26 when the piston 52 operating the flushing valve is opened by compressed air from a solenoid valve.
  • the valve for flushing media is closed by the same spring that closes the material valve.
  • the flushing media is supplied to both valves trough channel 54.
  • a ventilation bar 60 being connected to the air supply is disposed to the base plate.
  • This ventilation bar 60 is equipped with ventilation holes. The air flow passing through these holes takes rests of fluid material e.g. droplets along in order to prevent them from touching the surface to be coated.
  • the ventilation holes are arranged in close distance of about 2 mm and have a width of about 1 mm.
  • Reference Numerals List 10 applicator 43 supply channel for fluid material 12 mounting flange 44 piston 14 connecting plate 46 piston rod 16 junctions 48 cylinder 18 support member 50 first drive 20 enclosure 51 flushing valve 22 dispenser 52 piston for flushing valve 24 base plate 54 flushing media channel 26 nozzle piece 56 needle 28 row 58 third drive 30 hole 60 ventilation bar 32 valve chamber 62 ventilation holes 34 dispenser housing 36 side walls 38 closure part 40 counterpiece 41 needle (of flushing valve 51) 42 valve seat

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  • Coating Apparatus (AREA)
EP08016202A 2008-09-13 2008-09-13 Dispositif pour l'application d'un matériau fluide Ceased EP2163312A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08016202A EP2163312A1 (fr) 2008-09-13 2008-09-13 Dispositif pour l'application d'un matériau fluide
PCT/EP2009/006304 WO2010028755A1 (fr) 2008-09-13 2009-09-01 Dispositif d’application d’un matériau fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08016202A EP2163312A1 (fr) 2008-09-13 2008-09-13 Dispositif pour l'application d'un matériau fluide

Publications (1)

Publication Number Publication Date
EP2163312A1 true EP2163312A1 (fr) 2010-03-17

Family

ID=40227803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08016202A Ceased EP2163312A1 (fr) 2008-09-13 2008-09-13 Dispositif pour l'application d'un matériau fluide

Country Status (2)

Country Link
EP (1) EP2163312A1 (fr)
WO (1) WO2010028755A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392408A1 (fr) * 2010-06-02 2011-12-07 Windmöller & Hölscher KG Dispositif d'application de colle et procédé de nettoyage de celui-ci

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582231A (en) 1980-02-19 1986-04-15 Airprint Systems, Inc. Contact type liquid applicator
EP1137492A1 (fr) 1998-12-08 2001-10-04 Eftec Europe Holding AG Dispositif et procede d'extrusion par pulverisation
EP1449592A2 (fr) 2003-02-24 2004-08-25 Sealed Air Corporation (US) Distributeur autonettoyant de fluide
US7332035B1 (en) * 2000-11-21 2008-02-19 Sealant Equipment & Engineering, Inc. Multiple orifice applicator with improved sealing
WO2008151714A1 (fr) 2007-06-14 2008-12-18 J. Zimmer Maschinenbau Gesellschaft M.B.H. Dispositif de soupape pour dispositif d'application destiné à appliquer un fluide sur un substrat, et dispositif d'application correspondant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582231A (en) 1980-02-19 1986-04-15 Airprint Systems, Inc. Contact type liquid applicator
EP1137492A1 (fr) 1998-12-08 2001-10-04 Eftec Europe Holding AG Dispositif et procede d'extrusion par pulverisation
US7332035B1 (en) * 2000-11-21 2008-02-19 Sealant Equipment & Engineering, Inc. Multiple orifice applicator with improved sealing
EP1449592A2 (fr) 2003-02-24 2004-08-25 Sealed Air Corporation (US) Distributeur autonettoyant de fluide
WO2008151714A1 (fr) 2007-06-14 2008-12-18 J. Zimmer Maschinenbau Gesellschaft M.B.H. Dispositif de soupape pour dispositif d'application destiné à appliquer un fluide sur un substrat, et dispositif d'application correspondant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392408A1 (fr) * 2010-06-02 2011-12-07 Windmöller & Hölscher KG Dispositif d'application de colle et procédé de nettoyage de celui-ci

Also Published As

Publication number Publication date
WO2010028755A1 (fr) 2010-03-18

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