EP1477231B1 - Dispositif pour la préservation des espaces creux - Google Patents

Dispositif pour la préservation des espaces creux Download PDF

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Publication number
EP1477231B1
EP1477231B1 EP04011308A EP04011308A EP1477231B1 EP 1477231 B1 EP1477231 B1 EP 1477231B1 EP 04011308 A EP04011308 A EP 04011308A EP 04011308 A EP04011308 A EP 04011308A EP 1477231 B1 EP1477231 B1 EP 1477231B1
Authority
EP
European Patent Office
Prior art keywords
line
valve
atomizer
control
pressure
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.)
Expired - Lifetime
Application number
EP04011308A
Other languages
German (de)
English (en)
Other versions
EP1477231A3 (fr
EP1477231B2 (fr
EP1477231A2 (fr
Inventor
Tilo Eisenhardt
Ralph Henschel
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
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP1477231A2 publication Critical patent/EP1477231A2/fr
Publication of EP1477231A3 publication Critical patent/EP1477231A3/fr
Publication of EP1477231B1 publication Critical patent/EP1477231B1/fr
Application granted granted Critical
Publication of EP1477231B2 publication Critical patent/EP1477231B2/fr
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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B05B12/1427—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet a condition of a first liquid or other fluent material in a first supply line controlling a condition of a second one in a second supply line
    • B05B12/1436—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet a condition of a first liquid or other fluent material in a first supply line controlling a condition of a second one in a second supply line the controlling condition of the first liquid or other fluent material in the first supply line being its flow rate or its pressure

Definitions

  • the invention relates to a device for cavity preservation, in particular to motor vehicle bodies, according to the preamble of claim 1.
  • the cavities to be preserved of the vehicle body are filled with solvent-free and liquefied by heating wax, wherein a portion of the wax deposited on the cavity walls and thereby preserved, while the excess wax expires.
  • a disadvantage of this flood process is the relatively high consumption of the wax serving as a preservative, since when flooding the cavities with a high excess of material must be used.
  • the wax serving as a preservative is sprayed on the inner walls of the cavities using, for example, a lance inserted into the cavities from the outside and having exit ports for the preservative at its tip.
  • An advantage of this spray method for the preservation of cavities is the lower consumption of preservative compared to the flood process.
  • a cavity preserving apparatus comprising a pre-atomizer for atomizing the preservative wax in a stream of compressed air.
  • the atomization degree of the pre-atomizer can be adjusted by changing the atomizer nozzle.
  • a disadvantage of this known device for cavity preservation according to the spray method is the fact that the atomization of the pre-atomizer and thus the droplet size in the cavity preservation is not adjustable.
  • the invention is therefore based on the object to provide in the above-described known device for cavity preservation according to the spray method, the possibility to adjust the degree of atomization and thus the droplet size.
  • the invention comprises the general technical teaching to provide a control line through which the atomization degree of the pre-atomizer and thus the droplet size can be adjusted.
  • An advantage of the invention is in particular the better application of the preservative at the same time less material consumption.
  • the control line for adjusting the atomization of the pre-atomizer directly into the pre-atomizer so that the pre-atomizer has two inputs and one output.
  • Crucial for the function of the device according to the invention is in this variant only that on the control line, the degree of atomization of the dispensed preservative is adjustable.
  • Wax is preferably used as the preservative in the cavity preserving apparatus of the present invention, but the invention is not limited to waxes in terms of the preservative to be used, but can be realized with other preservatives which deposit on the inner walls of a cavity and increase the corrosion resistance.
  • compressed air is used as the transport means for the atomized preservative, since compressed air is available at low cost and is usually available anyway.
  • the invention is not limited to compressed air with respect to the transport means to be used, but also with fluids other than Means of transport feasible, which are suitable in addition to liquid transport gaseous transport in particular.
  • the pre-atomizer is connected on the output side to a controllable output valve which controls the dispensed quantity of the atomized preservative.
  • the outlet valve is preferably a pneumatically controllable valve, such as a 2/2-way valve, however, the device according to the invention can also be implemented with an electrically controllable outlet valve.
  • the actual delivery of the atomized preservative is preferably carried out in the apparatus according to the invention by a lance with a rotating nozzle which is inserted into the cavity to be preserved and the inner walls of the cavity uniformly coated due to the rotational movement of the nozzle.
  • control of the output valve is carried out according to the desired discharge amount and the control of the pre-atomizer according to the desired Zerstäubungsgrad by separate control lines to allow according to the respective operating circumstances, an optimal adjustment of the atomization and the discharge amount independently.
  • the individual adjustment of the pressure in the branching lines preferably by control valves, which in the two control lines and in the transport line are arranged.
  • the prevailing in the pressure line before the branch pressure is thus passed through a suitable control of the individual control valves to the output valve or the pre-atomizer.
  • a pressure regulator is arranged to set the desired pressure.
  • control valves for the transport control line and / or the pressure regulators are arranged together in a valve unit, wherein the valve unit is mounted on a movable axis of a robot.
  • the valve unit is attached to the third axis of the robot, but in the context of the invention, the valve unit can also be attached to other axes of the robot.
  • the valve unit however, as close as possible to the respective application device (eg an atomizer).
  • the outlet valve is preferably mounted together with the pre-atomizer on another axis of the robot, wherein the attachment to the sixth axis of the robot in a six-axis robot is particularly advantageous.
  • the device according to the invention is integrated with a pre-atomizer in a manual application device, such as a spray lance or a spray gun.
  • FIG. 1 shown as a preferred embodiment of the invention device is used for cavity preservation of motor vehicle bodies, but the device shown can also be used for cavity preservation of other objects.
  • the cavity preservation takes place here by a wax, which is supplied via a shut-off valve 1 and a preservative 2.
  • a pressure regulator 3 is arranged, which sets a predetermined pressure in the preservative line 2.
  • a flow meter 4 which measures the mass flow of the wax flowing through the preservative line 2 is disposed in the preservative line 3, the flow meter 4 being mounted on the third axis of a six-axis robot in this embodiment.
  • the output signal of the flowmeter 4 can be evaluated by a control unit, which controls the individual valves 1, 6, 15, 17, 21 and 20, wherein the control unit is not shown for simplicity.
  • the device according to the invention therefore has a compressed air line 5, which is connected via a shut-off valve 6 to a compressed air source, wherein the compressed air source is not shown for simplicity.
  • a filter 7 with a separator and a further filter 8 is arranged without a separator.
  • a pressure regulator 9 is further arranged to regulate the pressure in the compressed air line 5 downstream of the pressure regulator 9 to a predetermined desired value.
  • a pressure indicator 10 is connected to the output of the pressure regulator 9.
  • the compressed air line 5 branches off into two control lines 11, 12 and into a transport air line 13.
  • the transport air line 13 opens into a pre-atomizer 14 into which also the preservative line 2 opens, wherein the compressed air entering the pre-atomizer 14 entrains particles of the wax supplied in the preservative line 2 and thereby atomises it.
  • a 5/2-way valve 15 is arranged to control the volume flow of the supplied via the transport air line 13 compressed air, wherein the control of the 5/2-way valve 15 is electrical and not shown in the drawing for simplicity.
  • a pressure regulator 16 is further arranged to regulate the pressure in the transport air line 13 upstream of the 5/2-way valve 15 to a predetermined desired value.
  • the control line 12 also opens into the pre-atomizer 14 slightly downstream of the transport air line 13 and allows adjustment of the atomization of the pre-atomizer 14 and thus also the droplet size.
  • control line 12 upstream of the pre-atomizer 14 is also a 5/2-way valve 17 is arranged, which is also electrically controlled.
  • a further pressure regulator 18 is arranged, the two pressure regulators 16, 18 allow a different pressure control in the control line 12 on the one hand and in the transport air line 13 on the other.
  • the control line 11 has the task of controlling the release quantity of the preservative, the spraying of the preservative being effected by means of a spray lance 19, which is connected to the pre-atomizer 14 via an outlet valve 20.
  • a further 5/2-way valve 21 is arranged to adjust the pressure in the control line 11 according to the desired discharge amount.
  • the 5/2-way valves 15, 17, 21 are in this case arranged together with the two pressure regulators 16, 18 in a valve unit 22, wherein the valve unit 22 is fixed to the third axis of the six-axis robot.
  • the spray lance 19, in contrast, is arranged together with the outlet valve 20 and the pre-atomizer 14 in an application unit 23, the application unit 23 being fastened to the sixth axis of the six-axis robot.
  • the pre-atomizer 14 has a transport air connection 24, wherein the transport air connection 24 in the pre-atomizer 14 merges into a nozzle, which opens into a cavity. When exiting the nozzle, the compressed air supplied via the transport air line 13 is released, which leads to a corresponding negative pressure in the cavity of the pre-atomizer 14.
  • the pre-atomizer 14 has a preservative port 25 to which the preservative line 2 is connected, wherein the preservative port 25 opens into the pre-atomizer 14 in the cavity, so that the serving as a preservative waxes entrained from the preservative line 2 and thereby atomized.
  • the pre-atomizer has a control air connection 26, to which the control line 12 is connected, wherein the control air connection 26 opens in the pre-atomizer 14 downstream of the preservative connection 25 into the cavity of the pre-atomizer 14.
  • the supplied via the control line 12 compressed air therefore affects the Zerstäubungsgrad the pre-atomizer 14, so that the atomization can be adjusted by a corresponding pressure control in the control line 12.
  • the pre-atomizer 14 has a discharge port 27, via which the pre-atomizer is connected to the outlet valve 20, wherein at the discharge port 27 of the pre-atomizer 14 fluidized preservative is discharged.
  • FIG. 3 illustrated embodiment of a pre-atomizer 14 'is largely consistent with that described above and in FIG. 2 Vorserstäuber 14 shown so that reference is made to avoid repetition of the above description and the following reference numerals are used, which are characterized only for distinction with an apostrophe.
  • a special feature of the pre-atomizer 14 ' is a detergent connection 28', to which a detergent line can be connected, wherein the detergent line in FIG. 1 not shown for simplicity.
  • the flushing agent connection 28 ' opens in the pre-atomizer 14' downstream of the control air connection 26 into the cavity in the pre-atomizer 14 '.

Landscapes

  • Nozzles (AREA)
  • Packages (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Claims (7)

  1. Dispositif pour le revêtement protecteur de cavités, en particulier pour des pièces de carrosserie de véhicule automobile, comportant
    a) une conduite d'agent protecteur (2) pour l'amenée d'un agent protecteur,
    b) une conduite d'agent de transport (13) pour l'amenée d'un agent de transport, et
    c) un pré-pulvérisateur (14, 14') pour la pulvérisation de l'agent protecteur dans l'agent de transport, le pré-pulvérisateur (14, 14') étant raccordé côté admission à la conduite d'agent protecteur (2) et à la conduite d'agent de transport (13), et le degré de pulvérisation du pré-pulvérisateur (14, 14') étant réglable,
    d) une première conduite de commande (12) au moyen de laquelle le degré de pulvérisation du pré-pulvérisateur (14, 14') est réglable, le pré-pulvérisateur (14, 14') étant raccordé côté admission à la première conduite de commande (12),
    caractérisé en ce que
    e) la première conduite de commande (12) et la conduite d'agent de transport (13) sont dérivées d'une conduite de pression (5) commune.
  2. Dispositif selon la revendication 1, caractérisé en ce que le pré-pulvérisateur (14, 14') est raccordé côté sortie à une vanne de sortie (20) excitable qui commande le débit de l'agent protecteur pulvérisé.
  3. Dispositif selon la revendication 2, caractérisé en ce que la vanne de sortie (20) est raccordée à une deuxième conduite de commande (11) pour la commande de débit.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'une première vanne de commande (17) est disposée dans la première conduite de commande (12) et/ou une deuxième vanne de commande (21) dans la deuxième conduite de commande (11) et/ou une troisième vanne de commande (15) dans la conduite d'agent de transport (13).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'un premier régulateur de pression (17) est disposé dans la première conduite de commande (12) et/ou un deuxième régulateur de pression (16) dans la conduite d'agent de transport (13).
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que la première vanne de commande (17) et/ou la deuxième vanne de commande (21) et/ou la troisième vanne de commande (15) et/ou le premier régulateur de pression (17) et/ou le deuxième régulateur de pression (16) sont disposés ensemble dans une unité de vanne (22), ladite unité de vanne (22) étant montée sur un premier axe mobile d'un robot.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la vanne de sortie (20) et/ou le pré-pulvérisateur (14, 14') sont montés sur un deuxième axe mobile d'un robot.
EP04011308.6A 2003-05-16 2004-05-12 Dispositif pour la préservation des espaces creux Expired - Lifetime EP1477231B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322170 2003-05-16
DE10322170A DE10322170A1 (de) 2003-05-16 2003-05-16 Vorrichtung zur Hohlraumkonservierung und Vorzerstäuber

Publications (4)

Publication Number Publication Date
EP1477231A2 EP1477231A2 (fr) 2004-11-17
EP1477231A3 EP1477231A3 (fr) 2005-06-29
EP1477231B1 true EP1477231B1 (fr) 2008-07-09
EP1477231B2 EP1477231B2 (fr) 2021-12-01

Family

ID=33016425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04011308.6A Expired - Lifetime EP1477231B2 (fr) 2003-05-16 2004-05-12 Dispositif pour la préservation des espaces creux

Country Status (4)

Country Link
EP (1) EP1477231B2 (fr)
AT (1) ATE400365T1 (fr)
DE (2) DE10322170A1 (fr)
ES (1) ES2309417T5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009052654A1 (de) 2009-11-11 2011-05-12 Dürr Systems GmbH Vorrichtung und Verfahren zur Konservierung von Bauteilen
WO2016198122A1 (fr) * 2015-06-12 2016-12-15 Ipr - Intelligente Peripherien Für Roboter Gmbh Installations pour le traitement de protection de carrosseries de véhicules, procédé de traitement de protection d'une carrosserie de véhicule et carrosserie de véhicule
DE102022113397A1 (de) 2022-05-27 2023-11-30 Festo Se & Co. Kg Steuerung eines Volumenstroms eines Fluids mittels einer Ventilanordnung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422282B (sv) 1975-12-18 1982-03-01 Atlas Copco Ab Sprutpistol
DE2622818A1 (de) 1976-05-21 1977-12-01 Walter Reis Misch- und spruehduese
DE3616235A1 (de) * 1986-05-14 1987-11-19 Daimler Benz Ag Spruehduesentraeger zum automatisierten beschichten von hohlraeumen einer kraftfahrzeug-karosserie mit korrosionsschutzmitteln
DE3910179C1 (fr) * 1989-03-29 1990-03-29 J. Wagner Gmbh, 7990 Friedrichshafen, De
DE3939992C2 (de) 1989-12-02 2000-10-12 Juergen Hiesl Sprühkopf zum automatischen Auftragen und Verteilen von Flüssigkeiten, insbesondere für feinsten Mengendurchsatz und nebelarmen, zuverlässigen Betrieb
DE4419987A1 (de) † 1994-06-08 1996-02-29 Gema Volstatic Ag Injektor-Fördervorrichtung zur pneumatischen Förderung von Pulver
SE503696C2 (sv) † 1995-07-12 1996-08-05 Volvo Ab Sprutverktyg omställbart i olika riktningar och med minst två munstycken
FR2737138B1 (fr) † 1995-07-28 1997-08-22 Air Liquide Procede et dispositif de pulverisation d'un produit liquide
DE59610361D1 (de) † 1995-09-18 2003-05-28 Elpatronic Ag Bergdietikon Verfahren zur Förderung eines pulverförmigen Gutes mittels eines Injectors
US5887800A (en) † 1997-09-03 1999-03-30 Fanuc Robotics North America, Inc. Robot wrist and spray applicator
DE19748375A1 (de) * 1997-11-03 1999-05-06 Itw Gema Ag Verfahren und Vorrichtung zum Pulver-Sprühbeschichten
IT1311897B1 (it) * 1999-03-12 2002-03-20 Taccon Costruzioni Meccaniche Testina di spruzzo con doppio ugello.
EP1078693A1 (fr) † 1999-08-25 2001-02-28 Eftec Ag Dipositif et procédé pour étaler et/ou durcir thermiquement et/ou sécher un revêtement
DE10042325A1 (de) 2000-08-29 2002-03-14 Alstom Power Nv Zerstäubungsvorrichtung sowie Verfahren zum Zerstäuben einer Flüssigkeit

Also Published As

Publication number Publication date
ATE400365T1 (de) 2008-07-15
EP1477231A3 (fr) 2005-06-29
ES2309417T3 (es) 2008-12-16
DE10322170A1 (de) 2004-12-09
DE502004007532D1 (de) 2008-08-21
ES2309417T5 (es) 2022-04-12
EP1477231B2 (fr) 2021-12-01
EP1477231A2 (fr) 2004-11-17

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