EP2714288A1 - Installation pour appliquer un revêtement, notamment une peinture sur des objets, notamment des carrosseries de véhicules - Google Patents

Installation pour appliquer un revêtement, notamment une peinture sur des objets, notamment des carrosseries de véhicules

Info

Publication number
EP2714288A1
EP2714288A1 EP12728386.9A EP12728386A EP2714288A1 EP 2714288 A1 EP2714288 A1 EP 2714288A1 EP 12728386 A EP12728386 A EP 12728386A EP 2714288 A1 EP2714288 A1 EP 2714288A1
Authority
EP
European Patent Office
Prior art keywords
application unit
cleaning
nozzle
plant according
tank
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.)
Granted
Application number
EP12728386.9A
Other languages
German (de)
English (en)
Other versions
EP2714288B1 (fr
EP2714288B8 (fr
Inventor
Thomas Albrecht
Frank Tietze
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 Eisenmann SE filed Critical Eisenmann SE
Publication of EP2714288A1 publication Critical patent/EP2714288A1/fr
Publication of EP2714288B1 publication Critical patent/EP2714288B1/fr
Application granted granted Critical
Publication of EP2714288B8 publication Critical patent/EP2714288B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas

Definitions

  • Plant for coating in particular for painting, objects, in particular vehicle bodies
  • the invention relates to a system for coating
  • vehicle bodies with a) a coating booth; b) a conveyor system, which to be coated
  • Coating booth is discharged and reflected to a lesser extent on inner surfaces of the coating booth, but preferably on the outer surfaces of the application units and the adjacent areas of the handling device, reflected. These external surfaces must be freed of precipitation at regular intervals. To facilitate this, is so far common in practice
  • CONFIRMATION COPY the outer surface of the application unit of the atomizer area up to its mounting location on the handling device, in a painting robot so for example to the wrist, provided with a protective film of, for example Vaseline. This must then be removed manually from time to time and disposed of together with the deposited paint.
  • Object of the present invention is to provide a system of the type mentioned, in which the cleaning of the application unit and adjacent areas with less effort on materials and manu eller work can be done largely automated.
  • the system comprises: e) at least one cleaning device comprising at least one nozzle from which C0 2 in for cleaning a suitable form, particularly as a C0 2 snow or in the form of pellets, exiting and the surfaces of the application unit to be cleaned and optionally adjacent areas of the handling device can be applied; f) a tank for storing C0 2 in liquid
  • a central supply unit which in turn Conveying means capable of removing C0 2 from the tank and providing it with a pressure suitable for onward transport
  • a manifold which is connected to the supply unit and to which at least one cleaning device is connected;
  • Nozzle and the application unit can be brought about, such that all surfaces of the application unit to be cleaned can be reached by the C0 2 leaving the nozzle.
  • the invention reduces the consumption of chemicals, which at the same time reduces disposal costs.
  • the mission of a protective film is eliminated, which on the one hand the eliminates the production stops caused by this and, on the other hand, no longer exposes the assigned worker to the atmosphere in the coating booth.
  • Cleaning with the help of C0 2 snow can also be carried out in sensitive places where the otherwise used cleaning agent can not be used.
  • the used for cleaning C0 2 may come from conventional sources, such as pressure bottles, which are connected to the supply system; Alternatively, the tank of the central supply unit can also be connected directly to a C0 2 recovery or supply system. Depending on the shape of the applied to the surfaces to be cleaned C0 2 , the tank for storage of liquid or solid C0 2 may be formed. Solid C0 2 can already be present in the tank in the form of pellets, which can be conveyed by means of a corresponding air flow through the manifold.
  • the loss of CO 2 is due to sublimation
  • the manifold When liquid C0 2 is used, the manifold preferably comprises a liquid C0 2 line and a nebulizing compressed air line and is connected to at least one two-component nozzle for generating O 2 snow.
  • the C0 2 ⁇ snow thus arises only when exiting the corresponding nozzle.
  • the nozzle of the cleaning device can be pivotably mounted on a holder, for which purpose a corresponding drive, motor or pneumatic, will generally be provided. In this way, a part of the required relative movement between the nozzle and the
  • the cleaning device preferably comprises a plurality of nozzles, from which the application unit can be acted upon from different angles.
  • the use of multiple nozzles reduces the amount of relative movement between nozzle and application unit required to clean all surface areas.
  • the collecting line is connected to at least one removal point, to which a manual cleaning device can be connected.
  • This manual cleaning device is exceptionally used when automatic cleaning of the application unit by the cleaning device is not sufficient or for cleaning other surfaces within the coating booth where precipitation has formed.
  • the cleaning device has an enclosure which has at least one opening through which the application unit can be inserted into the interior of the enclosure. In this way, the cleaning process is largely shielded from the other areas of the coating booth.
  • the cleaning device has a closed space in which the
  • Delivery end of the application unit for flushing the internal ren flow paths can be introduced with solvent through an opening.
  • the cleaning of the outer surface can take place substantially simultaneously with the cleaning of the inner flow paths of the application unit, so that the downtimes of the system can be further reduced.
  • Figure 1 shows schematically a section of the layout
  • FIG. This can be as a schematic layout of a part of a paint booth or as a horizontal section through the
  • Paint booth can be read below the ceiling.
  • the paint booth provided overall with the reference numeral 1 comprises two parallel side walls 2, which are closed in the region no longer represented by end faces, which in turn are in a known manner
  • Gates or locks for the objects to be painted 4 have.
  • the bottom of the spray booth 1 is essentially formed by a grate 3, while it is closed at the top, likewise in a conventional manner, by an air plenum, from which conditioned air can be conducted into the interior of the spray booth 1.
  • the objects to be painted 4 which are shown schematically in the drawing as rectangles and which may be in particular vehicle bodies or parts thereof, are guided by means of a conveyor system 5 in a continuous or intermittent movement through the interior of the painting booth 1, for example in Figure 1 from left to right.
  • a total of four articulated robot 6 are provided, of which two are arranged on one side of the path of movement of the objects 4, as well as two industrial robots 7, one of which is arranged on one side of the path of movement.
  • Both types of robot have in common that they have a movable robot arm 6a and 7a, at the end of each an application unit 8 and 9 is worn.
  • Each of these application units 8, 9 comprises the actual applicator, which may in particular be spray guns and / or high-rotation atomizers.
  • the cleaning stations 10, 11 have in common that they at least
  • All removal stations 10, 11, 12 are connected via branch lines, which are not provided with the reference numerals for clarity, with a manifold 13.
  • Central supply unit 14 has an area
  • auxiliary media such as compressed air and conveying air, as they are used to transport
  • CC> 2 especially in pellet form or for the production of
  • C0 2 snow is required, takes place in the area 14a of the central supply unit 14.
  • the latter also comprises a tank 14b, in which the used for cleaning C0 2 in the form of pellets or in liquid form is kept in stock.
  • pellets it is also possible to use a large, solid C0 2 block, from which smaller solid particles are then shredded as required for transport through lines of appropriate size.
  • the tank 14b is connected via a line 15 to an external C0 2 source in connection.
  • This may be a conventional pressure bottle or any other source of CO ". If gaseous C0 2 is supplied, of course, the necessary for liquefaction or solidification units and facilities must be present in the central supply unit 14.
  • the cleaning stations 10, 11 have an enclosure 16 which has such an opening that the application units 8, 9 can be introduced by the associated robots 6, 7 into the interior of the corresponding cleaning device 10, 11. This generally means an opening upwards and optionally also towards at least one side. Examples of this are described below.
  • the painting booth 1 described above operates as follows:
  • the normal painting process is carried out in the usual way:
  • the objects to be painted and prepared accordingly 4 are supplied from the left with the aid of the conveyor system 5 in Figure 1 and get into the
  • Paint booth 1 from top to bottom, starting from the above-mentioned Heilplenum, and flows through the bottom of the spray booth 1 forming grate 3.
  • part of the overspray is reflected on the outside Chen the robot arms 6a, 7a and the application units 8, 9 down. From there they must be removed at certain intervals, depending on the degree of soiling. This happens now in the following way:
  • the tank 14b of the central supply unit 14 is filled via line 15 with liquid C0 2 .
  • the area 14a of the central supply unit 14 has filled the manifold 13 with the required liquid CC> 2 and atomizing compressed air.
  • the manifold 13 comprises separate
  • the application units 8, 9 are then removed again with the aid of the associated robot arms 6a, 7a from the housings. sache the cleaning stations 10, 11 moved out; remaining, not completely cleaned surfaces
  • the painting operation can be resumed immediately without the need for drying or other aftertreatment of the surface areas of application units 8, 9 or adjacent areas of the robot arms 6a, 7a which have been cleaned of paint.
  • FIG. 2 schematically shows a cleaning station 10 in vertical section. Shown is a portion of the cabin wall 2, a portion of the opposite wall of the. Housing 16, one attached to the cabin wall 2 by means of a holder 17 two-component nozzle 18 and one by means of a holder 19 on the
  • Housing wall 16 fastened two-component nozzle 20.
  • the two-component nozzles 18, 20 are supplied via supply hoses 21, 22, which are connected to the manifold 13, with liquid C0 2 and atomizing compressed air.
  • the two-component nozzles 18, 20 can be
  • the application unit 8 of an articulated robot 6 is introduced in FIG. 2 between the housing wall 16 and the cabin wall 2.
  • the two-component nozzles 18, 20 When cleaning the inserted region of the application unit 8 and, if appropriate, the adjacent region of the associated robot arm 6a, the two-component nozzles 18, 20 generate CO.sub.2 snow and thus act on the surfaces to be cleaned. In order to reach all surfaces, the two-component nozzles 18, 20 thereby about the above-mentioned axes 23, 24 pivots.
  • the two-component nozzles 18, 20 thereby about the above-mentioned axes 23, 24 pivots.
  • the application unit 8 are rotated about a vertical axis. After completion of these cleaning operations, the application unit 8 by means of the associated robot arm
  • Figure 3 shows, also in vertical section, a
  • FIG. 1 Variant of the cleaning station 10 of Figure 2. Corresponding parts are here designated by the same reference numerals as in Figure 2, but in addition 100.
  • the cabin wall 102 and the housing wall 116 can be seen.
  • a bottom wall 125 of the cleaning station 110 in which there is a discharge opening 126, is additionally shown.
  • a cleaning box 127 surrounding a substantially closed space is provided, which has an opening 128 which points obliquely upwards and inwards into the cleaning appliance 110 and is surrounded by a seal 129.
  • a two-component nozzle 120 is provided only on the housing wall 116, which is supplied via the hose 122 with liquid CO 2 and atomizing air.
  • the application unit 108 For cleaning, the application unit 108 with its foremost, the actual sputtering area 108 a end having in advance through the opening 128 in the
  • Application unit 108 are cleaned by means of the two-component nozzle 120 in the manner already described above, the inner flow paths of the application unit 108 is cleaned by solvent which is sprayed via the sputtering area 128a into the interior of the box 127 and finally removed via the drain opening 126. In this way, the outer surfaces are cleaned simultaneously with the inner flow paths of the application unit 108.
  • FIG. 1 Another embodiment of a cleaning device 210 is shown in horizontal section in FIG. Parts that correspond to those of the cleaning device of Figure 2 are provided with the same reference numerals plus 200.
  • the housing 216 of the cleaning device 210 is attached to the cabin wall 202. This is open at the top and additionally has an opening 230 in one of the side walls.
  • a two-component nozzle 218, 220, 231 is fastened to the cabin wall 202 as well as to those side walls of the housing 216 which have no opening.
  • the nozzles 218, 220, 231 in each case enclose an angle of 120 °.
  • the applicator 208 of an articulated robot is from above and / or through the opening 230 of the housing 216 in its interior to the position shown in Figure 4 in the middle between the Zerstäubungs Kunststoffen the
  • Two-component nozzles 218, 220, 231 introduced. There, the application unit 208 can be acted upon from three sides with C0 2 ⁇ snow. Under favorable circumstances, in this way all surface areas of the
  • Application unit 208 can be achieved without this would have to be additionally rotated.
  • the cabin wall 302, the housing 316 and its opening 230 are similar to the corresponding components in the embodiment of Figure 4 and therefore need not be described again.
  • the main difference between the embodiments of Figures 5 and 4 is that in the embodiment of Figure 5, all three two-component nozzles 318, 320 and 331 are fixed to the cabin wall 302. In this construction, it will generally be necessary to turn the application unit 308 to be cleaned during the cleaning process so that all surface areas of C0 2 ⁇ snow are reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Cleaning In General (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne une installation pour appliquer un revêtement sur des objets (4), comprenant de manière connue une cabine de pistolage (1), un système de transport (5) qui achemine les objets (4) à pourvoir d'un revêtement à travers la cabine de pistolage (2), et au moins une unité d'application (8, 9) qui est portée et guidée par un appareil de manipulation (6, 7). Une unité d'alimentation centrale (14) comprend un réservoir (14b) pour le stockage de CO2 sous forme liquide ou solide et des moyens de transport aptes à prélever du CO2 dans le réservoir (14b) et à le céder à un collecteur (13) à une pression appropriée. Ce collecteur (13) est relié à au moins un appareil de nettoyage (10, 11) qui, pour sa part, présente au moins une buse pour délivrer du CO2 sous une forme appropriée aux fins de nettoyage. Un mouvement relatif commandé par programme est effectué entre une buse et l'unité d'application (8, 9) pour permettre au CO2 de pouvoir accéder à toutes les surfaces à nettoyer de l'unité d'application (8, 9). Cela permet une automatisation complète du nettoyage des surfaces extérieures de l'unité d'application (8, 9) et éventuellement des zones adjacentes de l'appareil de manipulation (6, 7).
EP12728386.9A 2011-06-01 2012-05-23 Installation pour appliquer un revêtement, notamment une peinture sur des objets, notamment des carrosseries de véhicules Not-in-force EP2714288B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011103117A DE102011103117A1 (de) 2011-06-01 2011-06-01 Anlage zum Beschichten, insbesondere Lackieren, von Gegenständen, insbesondere von Fahrzeugkarosserien
PCT/EP2012/002185 WO2012163491A1 (fr) 2011-06-01 2012-05-23 Installation pour appliquer un revêtement, notamment une peinture sur des objets, notamment des carrosseries de véhicules

Publications (3)

Publication Number Publication Date
EP2714288A1 true EP2714288A1 (fr) 2014-04-09
EP2714288B1 EP2714288B1 (fr) 2017-07-26
EP2714288B8 EP2714288B8 (fr) 2017-11-29

Family

ID=46320865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728386.9A Not-in-force EP2714288B8 (fr) 2011-06-01 2012-05-23 Installation pour appliquer un revêtement, notamment une peinture sur des objets, notamment des carrosseries de véhicules

Country Status (7)

Country Link
US (1) US9956567B2 (fr)
EP (1) EP2714288B8 (fr)
CN (1) CN103619492B (fr)
BR (1) BR112013030087A8 (fr)
DE (1) DE102011103117A1 (fr)
RU (1) RU2597399C2 (fr)
WO (1) WO2012163491A1 (fr)

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DE102012006567A1 (de) * 2012-03-30 2013-10-02 Dürr Systems GmbH Trockeneis-Reinigungseinrichtung für eine Lackieranlage
DE102013208592A1 (de) * 2013-05-10 2014-11-13 Dürr Systems GmbH Regenerierbarer Abscheider für die Trockenabscheidung
CN104941851B (zh) * 2014-03-26 2018-07-20 安川（中国）机器人有限公司 清洗机器人系统及清洗方法和涂装机器人系统及涂装方法
DE102014008052A1 (de) * 2014-05-28 2015-12-17 Eisenmann Ag Anlage und Verfahren zum Behandeln von Gegenständen
DE102015219429A1 (de) 2015-10-07 2017-04-13 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Reinigen mithilfe von festem Kohlenstoffdioxid
DE102015219430A1 (de) 2015-10-07 2017-04-13 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Reinigen von Klebeflächen
CN109433740A (zh) * 2018-11-30 2019-03-08 厦门理工学院 一种干冰清洗手机壳的控制方法
CN109794857B (zh) * 2019-03-01 2020-07-28 山东华星新材料科技有限公司 一种基于喷砂工艺的钢材热轧工序表面氧化皮去除装置
US11826768B2 (en) * 2021-03-11 2023-11-28 Ford Global Technologies, Llc Method and apparatus for adaptive control and real-time edge tracking of adhesive and sealer dispensing

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Also Published As

Publication number Publication date
US20140245953A1 (en) 2014-09-04
CN103619492B (zh) 2016-08-24
BR112013030087A8 (pt) 2017-10-10
WO2012163491A1 (fr) 2012-12-06
US9956567B2 (en) 2018-05-01
BR112013030087A2 (pt) 2016-09-20
DE102011103117A1 (de) 2012-12-06
RU2013154682A (ru) 2015-06-20
EP2714288B1 (fr) 2017-07-26
CN103619492A (zh) 2014-03-05
RU2597399C2 (ru) 2016-09-10
WO2012163491A8 (fr) 2013-11-14
EP2714288B8 (fr) 2017-11-29

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